CN112640653B - Crop harvester - Google Patents

Abstract

The crop harvester is provided with a left and right 1 st conveying body (11) and a2 nd conveying body (12), wherein the left and right 1 st conveying body (11) clamps the crops (A) in the field from the left side and the right side to lift the crops (A) from the field, the lifted crops (A) are maintained in a standing posture and conveyed to the rear side of the obliquely upper side, and the 2 nd conveying body (12) maintains the stems (A1) of the crops (A) in a transverse posture and conveys to the rear side. The device is provided with a posture changing part (62), wherein the posture changing part (62) changes the posture of the crop (A) at the conveying terminal part from the 1 st conveying body (11) into a transverse posture of the part with fruits of the crop (A) on one side close to the separating part (5) relative to the stem (A1) of the crop (A), and the stem (A1) of the crop (A) with the posture changed into the transverse posture is held by the 2 nd conveying body (12).

Description

Crop harvester

Technical Field

The present invention relates to a crop harvester for harvesting crops in a field.

Background

[ Background Art 1]

As an example of a crop harvester, there is a green soybean harvester having a structure as disclosed in patent document 1. Patent document 1 discloses a device including a left and right 1 st carrier, a 2 nd carrier, and a separating unit, wherein the left and right 1 st carrier holds a crop in a field from the left and right sides, lifts the crop from the field, carries the crop to the rear side, the 2 nd carrier holds a stem of the crop in a sideways posture, carries the crop to the rear side, and the separating unit separates fruits from the crop carried by the 2 nd carrier.

In patent document 1, the crop in the raised posture of the field is thereby held and lifted by the 1 st carrier, and the crop is gradually changed in posture to the horizontal posture while being carried by the 1 st carrier.

At the transport end portion of the 1 st transport body, the crop is in a sideways-oriented posture, and the crop in the sideways-oriented posture is transferred from the transport end portion of the 1 st transport body to the transport start portion of the 2 nd transport body. The crop is conveyed backward in a horizontal posture by the 2 nd conveying body, and the fruit is separated from the crop by the separating section while the crop is conveyed by the 2 nd conveying body, and the separated fruit is recovered.

According to patent document 1, the transport start end of the 1 st transport body is driven to rotate around the vertical axis, and the crop in the raised position of the field is held by the 1 st transport body. The transport terminal portion of the 1 st transport body is rotationally driven about the axis in the left-right direction, and the posture of the crop is changed to the landscape posture at the transport terminal portion of the 1 st transport body.

Thus, the 1 st conveyance body is in a state where the axial centers of the 1 st conveyance body driven by rotation are orthogonal to each other at the conveyance start end portion and the conveyance end portion, and the 1 st conveyance body is twisted so as to pass from the conveyance start end portion to the conveyance end portion.

[ Background Art 2]

As an example of a crop harvester, there is a green soybean harvester having a structure as disclosed in patent document 1. Patent document 1 discloses a device including a left and right 1 st carrier, a2 nd carrier, and a separating unit, wherein the left and right 1 st carrier holds a crop in a field from the left and right sides, lifts the crop from the field, carries the crop to the rear side, the 2 nd carrier holds a stem of the crop in a sideways posture, carries the crop to the rear side, and the separating unit separates fruits from the crop carried by the 2 nd carrier.

In patent document 1, the crop in the standing posture of the field is held and lifted by the 1 st carrier at the harvesting section, and the crop is gradually changed in posture to a sideways posture while being carried by the 1 st carrier.

At the transport end portion of the 1 st transport body, the crop is in a sideways-oriented posture, and the crop in the sideways-oriented posture is transferred from the transport end portion of the 1 st transport body to the transport start portion of the 2 nd transport body. The crop is conveyed backward in a horizontal posture by the 2 nd conveying body, and the fruit is separated from the crop by the separating section while the crop is conveyed by the 2 nd conveying body, and the separated fruit is recovered.

According to patent document 1, at the harvesting section, the transport start end portion of the 1 st transport body is rotationally driven around the vertical axis, and the crop in the standing posture of the field is held by the 1 st transport body. The transport terminal portion of the 1 st transport body is rotationally driven about the axis in the left-right direction, and the posture of the crop is changed to the landscape posture at the transport terminal portion of the 1 st transport body.

Thus, the 1 st conveyance body is in a state where the axial centers of the 1 st conveyance body driven by rotation are orthogonal to each other at the conveyance start end portion and the conveyance end portion, and the 1 st conveyance body is twisted so as to pass from the conveyance start end portion to the conveyance end portion.

[ Background Art 3]

As an example of a crop harvester, there is a green soybean harvester having a structure as disclosed in patent document 1. Patent document 1 discloses a harvester for harvesting crops in a field, a carrier for carrying the crops harvested by the harvester to the rear side while holding the crops in a sideways posture, and a separator disposed on the right side of the carrier.

In patent document 1, a rotating body that is driven to rotate around an axis in a direction intersecting a conveyance body in a plan view is provided in a separation section. As the crop is transported by the transport body, the rotating body collides with the crop, and the fruit is separated from the crop and recovered.

Patent document 1: japanese patent application laid-open No. 2000-201519.

Disclosure of Invention

[ Problem 1]

The problems with respect to [ background art 1] are as follows.

In patent document 1, when the crop is conveyed by the 1 st conveyance body, the posture of the crop is changed from the raised posture to the horizontal posture while the crop is conveyed to the rear side, and therefore, there is a possibility that the gripping and conveyance of the crop by the 1 st conveyance body are not stably performed.

As described above, in the case of carrying the crop by the 1 st carrying body, in order to reliably carry out the gripping of the crop, it is necessary to provide rollers, guides, and the like for supporting the gripping portion of the 1 st carrying body from the opposite side of the crop.

However, as in patent document 1, if the 1 st conveyance body is twisted so as to pass from the conveyance start end portion to the conveyance end portion, it is difficult to provide the rollers, guides, and the like. If the number of rollers, guides, and the like is small (the number cannot be set), the crop gripping and conveying by the 1 st conveying body may not be stably performed.

The purpose of the present invention is to stably carry out the gripping and carrying of crops by a1 st carrying body in a crop harvester comprising the 1 st carrying body, the 2 nd carrying body and a separating part.

[ Problem 2]

The problems with respect to [ background art 2] are as follows.

In patent document 1, in the harvesting section, when the crop is conveyed by the 1 st conveyance body, the posture of the crop is changed from the raised posture to the horizontal posture while the crop is conveyed to the rear side, and therefore, there is a possibility that the gripping and conveyance of the crop by the 1 st conveyance body are not stably performed.

As described above, in the case where the crop is gripped by the 1 st conveyance body at the harvesting portion, in order to reliably grip the crop, it is necessary to provide rollers, guides, and the like for supporting the gripped portion of the 1 st conveyance body from the opposite side of the crop.

However, as in patent document 1, if the 1 st conveyance body is twisted so as to pass from the conveyance start end portion to the conveyance end portion, it is difficult to provide the rollers, guides, and the like. If the number of rollers, guides, and the like is small (the number cannot be set), the crop gripping and conveying by the 1 st conveying body may not be stably performed.

The purpose of the present invention is to stably carry out the gripping and conveying of crops by a1 st conveying body in a crop harvester provided with a harvesting part having the 1 st conveying body, a2 nd conveying body and a separating part.

[ Problem 3]

The problems with respect to [ background art 3] are as follows.

In patent document 1, when fruits are separated from a crop and collected, a large separation action is performed from a rotating body to an upper portion of the crop (a portion with the fruits) in a state where a stem of the crop is sandwiched by a carrier.

Thus, for example, in a weak crop such as a stem, there is a possibility that the stem of the crop is bent, and if the stem of the crop is bent, the posture of the crop is changed from a horizontal posture to a downward posture, for example, so that the rotating body does not properly collide with the crop, and the fruit may not be properly separated from the crop.

The purpose of the present invention is to improve the separation performance of a crop from the fruit by a separation unit in a crop harvester in which a plant stem of the crop harvested by the harvesting unit is gripped by a carrier in a sideways posture, the crop carrier is carried in a sideways posture, and the fruit is separated from the crop by the separation unit and recovered.

The solution corresponding to [ problem 1] is as follows.

The crop harvester is characterized by comprising a left and a right 1 st conveying bodies, a2 nd conveying body and a separating part, wherein the left and the right 1 st conveying bodies are driven to rotate around an axis in an oblique vertical direction, crops in a field are lifted from the left side and the right side in a clamping manner, the lifted crops are maintained in a standing posture and are conveyed to the rear side in an oblique upper side, the 2 nd conveying bodies are driven to rotate around the axis in the left and the right direction, the stems of the crops in a transverse posture are maintained, the separating part is arranged on the right side or the left side of the 2 nd conveying bodies, fruits are separated from the crops conveyed by the 2 nd conveying bodies, and the crop harvester is provided with a posture changing part, wherein the posture changing part changes the posture of the crops from the conveying terminal parts of the 1 st conveying bodies into the transverse posture of the crops, the stems of the crops with the fruits are maintained by the 2 nd conveying bodies, and the stems of the crops with the fruits are in the transverse posture, which are changed to the side close to the separating part, and the trunk of the crops in the transverse posture, relative to the stems of the crops are maintained by the 2 nd conveying bodies.

According to the present invention, the crop in the raised posture of the field is lifted from the field by being held by the first and second conveying bodies from the left and right sides, and the crop is conveyed to the rear side while maintaining the raised posture.

When the crop in the standing posture reaches the conveyance terminal portion of the 1 st conveyance body, the crop in the standing posture is changed to the landscape posture at the transfer portion from the conveyance terminal portion of the 1 st conveyance body to the conveyance start portion of the 2 nd conveyance body, and is transferred to the conveyance start portion of the 2 nd conveyance body.

The crop whose posture is changed to the horizontal posture is conveyed by the 2 nd conveying body, fruits are separated from the crop conveyed by the 2 nd conveying body by the separating section, and the separated fruits are recovered.

As described above, according to the present invention, the crop in the standing posture of the field is lifted from the field by the 1 st carrier and is carried rearward while maintaining the standing posture, so that the gripping and carrying of the crop by the 1 st carrier are stably performed. This can improve the harvesting performance of the crop harvester.

According to the present invention, the 1 st conveyance body is not twisted from the conveyance start end portion to the conveyance end portion, and therefore, the gripping portion of the crop of the 1 st conveyance body can be easily provided as a roller, a guide, or the like supported from the opposite side of the crop. In this respect, the gripping and carrying of the crop by the 1 st carrier are also performed stably, which is advantageous.

The present invention provides a posture changing section for changing the posture of a standing crop to a horizontal posture in a transfer section from a transfer terminal section of a1 st carrier to a transfer start section of a2 nd carrier, when the crop is transferred to the transfer start section of the 2 nd carrier.

Thus, the standing crop is easily changed to the horizontal posture, transferred to the transport start end portion of the 2 nd transport body, and smoothly transferred from the transport end portion of the 1 st transport body to the transport start end portion of the 2 nd transport body, thereby improving the harvesting performance of the crop harvester.

In the present invention, it is preferable that the posture changing section is disposed so as to be spaced apart from the conveying terminal section of the 1 st conveying body to the rear side, across the upper side of the conveying terminal section of the 1 st conveying body.

According to the present invention, when the crop is transferred from the conveyance terminal portion of the 1 st conveyance body to the conveyance start portion of the 2 nd conveyance body, the posture changing portion acts on the portion of the crop located above the conveyance terminal portion of the 1 st conveyance body, and the posture of the crop in the standing posture is easily changed to the horizontal posture by the posture changing portion.

In the present invention, it is preferable that the posture changing section is disposed obliquely upward in a side view from a position above the conveyance terminal section of the 1 st conveyance body.

Since the 1 st carrier is configured to carry the crop obliquely upward while maintaining the standing posture, according to the present invention, the posture changing section can be made to act on the crop according to the flow of the crop carried by the 1 st carrier, and the standing posture of the crop can be easily changed to the horizontal posture by the posture changing section.

In the present invention, it is preferable that the posture changing section overlaps with a conveyance start end section of the 2 nd conveyance body in a plan view.

According to the present invention, the posture changing section also acts on the crop during the transfer from the crop to the transport start end section of the 2 nd transport body, and the posture of the crop in the standing posture is easily changed to the sideways posture by the posture changing section.

In the present invention, it is preferable that a stem guide portion for guiding the stem of the crop toward the conveyance start end portion side of the 2 nd conveyance body is provided at a position between the conveyance end portion of the 1 st conveyance body and the posture changing portion in a side view.

According to the present invention, when the crop is transferred from the conveyance terminal portion of the 1 st conveyance body to the conveyance starting portion of the 2 nd conveyance body, the stem portion of the crop is guided by the stem guide portion toward the conveyance starting portion side of the 2 nd conveyance body, so that the stem of the crop is difficult to separate from the conveyance starting portion of the 2 nd conveyance body.

This improves the reliability of the holding of the stem of the crop by the transport start end portion of the 2 nd transport body, and enables smooth delivery of the crop from the transport end portion of the 1 st transport body to the transport start end portion of the 2 nd transport body, thereby improving the harvesting performance of the crop harvester.

In the present invention, it is preferable that an upper guide portion for guiding the upper portion of the crop to the conveyance start end portion side of the 2 nd conveyance body is provided at a position above the posture changing portion in a side view.

According to the present invention, when the crop is transferred from the conveyance terminal portion of the 1 st conveyance body to the conveyance start portion of the 2 nd conveyance body, the posture changing portion acts on the upper portion from the conveyance terminal portion of the 1 st conveyance body of the crop, and the upper guide portion acts on the upper portion of the posture changing portion of the crop, so that the crop in the standing posture is easily posture-changed into the sideways posture by the posture changing portion and the upper guide portion.

In the present invention, it is preferable that the posture changing section is provided with a guide section, an annular rotor, and a claw body, the guide section is disposed so as to be inclined from a conveyance terminal section of the 1 st conveyance body toward a conveyance start section of the 2 nd conveyance body in a plan view, the annular rotor is rotationally driven around an axis in a vertical direction, the claw body is mounted on the annular rotor at a predetermined interval in a movement direction of the annular rotor along the guide section from a conveyance terminal section side of the 1 st conveyance body toward a conveyance start section side of the 2 nd conveyance body, and the claw body pushes a crop from the conveyance terminal section side of the 1 st conveyance body toward the conveyance start section side of the 2 nd conveyance body in accordance with rotation of the annular rotor.

According to the present invention, the claw body (annular rotating body) of the posture changing section is moved along the guide section, whereby the crop is pushed from the conveyance terminal end side of the 1 st conveyance body to the conveyance start end side of the 2 nd conveyance body, and the crop in the standing posture is changed in posture to the horizontal posture by the guide section of the posture changing section.

Thus, when the crop is transferred from the conveyance terminal end of the 1 st conveyance body to the conveyance start end of the 2 nd conveyance body, the crop does not remain in the posture changing section, and the posture of the crop in the standing posture can be easily changed to the horizontal posture by the posture changing section.

In the present invention, it is preferable that the present invention further comprises a distribution transmission unit, a lower transmission shaft, and an upper transmission shaft, wherein the distribution transmission unit is disposed between a conveyance terminal portion of the 1 st conveyance body and the posture changing unit, the transmission unit transmits power to the distribution transmission unit from an outer position with respect to a portion where the 1 st conveyance body holds the crop, the lower transmission shaft transmits power transmitted to the distribution transmission unit to the 1 st conveyance body located at a lower side of the distribution transmission unit, and the upper transmission shaft transmits power transmitted to the distribution transmission unit to the posture changing unit located at an upper side of the distribution transmission unit.

According to the present invention, when the posture changing section is disposed at a position above the conveyance terminal section of the 1 st conveyance body, the space between the posture changing section and the conveyance terminal section of the 1 st conveyance body can be effectively utilized, and the transmission system to the posture changing section and the 1 st conveyance body can be compactly disposed, which is advantageous in terms of simplification of the structure of the transmission system.

According to the present invention, the transmission system is disposed above the conveyance terminal part of the 1 st conveyance body, and the transmission system is not disposed below the conveyance terminal part of the 1 st conveyance body.

Thus, the transmission system is not disposed in the vicinity of the trunk of the crop at the position where the crop in the standing posture is changed to the horizontal posture, so that the crop in the standing posture is easily changed to the horizontal posture by the posture changing section.

The crop harvester is characterized by comprising a left and a right 1 st conveying body, a 2 nd conveying body and a guide rail, wherein the left and the right 1 st conveying bodies are driven to rotate around an axis in an oblique vertical direction, crops in the field are lifted from the left side and the right side by clamping, the lifted crops are conveyed to the obliquely upper rear side while being maintained in a standing posture, the 2 nd conveying body is driven to rotate around the axis in the left and the right direction, the 2 nd conveying body extends to the rear side from a conveying terminal end of the 1 st conveying body, the guide rail extends to the rear side along the upper side of the 2 nd conveying body, a plant stem of the crops which is changed to a transverse posture from the posture of the conveying terminal end of the 1 st conveying body is clamped between the 2 nd conveying body and the guide rail, the 2 nd conveying body is conveyed to the rear side, and a separating part is arranged on the right side or the left side of the 2 nd conveying body, the separating part is separated from the crops conveyed to the 2 nd conveying body by the rear side by the obliquely upper side, and the left and right side of the 2 nd conveying body is arranged to the front end of the separating part of the 2 nd conveying body is contacted with the front and the front conveying body when the left and right side of the front conveying body is contacted with the front and the front conveying part of the front conveying body is arranged from the front side of the front and the front conveying body and the front side of the front conveying body and the front conveying body is in the front and rear conveying side of the rear conveying body.

According to the present invention, the crop in the standing posture of the field is held from the left and right sides by the left and right 1 st conveying bodies, lifted from the field, and conveyed to the rear side while being maintained in the standing posture.

When the crop in the standing posture reaches the conveyance terminal portion of the 1 st conveyance body, the crop in the standing posture is changed to the landscape posture at the transfer portion from the conveyance terminal portion of the 1 st conveyance body to the conveyance start portion of the 2 nd conveyance body, and is transferred to the conveyance start portion of the 2 nd conveyance body.

The crop changed in posture to the horizontal posture is carried by the 2 nd carrier, and the fruit is separated by the separating section from the crop carried by the 2 nd carrier, and the separated fruit is recovered.

As described above, according to the present invention, the crop in the standing posture of the field is lifted from the field by the 1 st carrier, and the crop is carried rearward while being maintained in the standing posture, so that the gripping and carrying of the crop by the 1 st carrier are stably performed. This can improve the harvesting performance of the crop harvester.

According to the present invention, since the 1 st conveyance body is not twisted from the conveyance start end portion to the conveyance end portion, rollers, guides, and the like that support the crop gripping portion of the 1 st conveyance body from the opposite side of the crop can be easily provided. In this respect, the gripping and carrying of the crop by the 1 st carrier are also performed stably, which is advantageous.

According to the present invention, the guide rail extends along the upper side of the 2 nd carrier with respect to the 2 nd carrier rotationally driven about the axis in the lateral direction, and the stem of the crop in the sideways posture is sandwiched between the 2 nd carrier and the guide rail, and the crop is carried by the 2 nd carrier.

According to the present invention, the 2 nd carrier is disposed slightly displaced to the side closer to the separation section (separation section side) with respect to the portion of the 1 st carrier that contacts each other.

Thus, the 2 nd carrier does not separate from the stem of the crop in the left-right direction with respect to the crop in which the posture is changed from the carrier terminal end portion of the 1 st carrier to the separating portion side to the horizontal posture, and the reliability of the gripping of the stem of the crop by the 2 nd carrier and the guide rail can be improved.

In the present invention, it is preferable that a side surface of the guide rail on a side closer to the separation section is disposed between a side surface of the 2 nd carrier on a side closer to the separation section and a side surface on a side farther from the separation section in a plan view, and a side surface of the guide rail on a side farther from the separation section is disposed on a side farther from the separation section in a plan view than a side surface of the 2 nd carrier.

According to the present invention, the upper guide rail is displaced to a side farther from the separating portion (the opposite side of the separating portion) than the lower 2 nd carrier.

Thus, even if the crop is in an inclined posture in which the upper part of the crop is located at a slightly higher position than the stem of the crop at the delivery section from the transport terminal end of the 1 st transport body to the transport start end of the 2 nd transport body, the upper guide rail is displaced to a side away from the lower 2 nd transport body toward the upper part of the crop, whereby the stem of the crop in the inclined posture is easily clamped between the 2 nd transport body and the guide rail, and the reliability of the clamping of the stem of the crop by the 2 nd transport body and the guide rail can be improved.

In the present invention, it is preferable that the conveyance terminal portion of the 1 st conveyance body and the conveyance start portion of the 2 nd conveyance body are arranged so as to overlap each other in a plan view, the conveyance start portion of the 2 nd conveyance body is arranged at a position below the conveyance terminal portion of the 1 st conveyance body in a side view, and the conveyance start portion of the guide rail is arranged at a position behind the conveyance terminal portion of the 1 st conveyance body.

According to the present invention, since the transport terminal portion of the 1 st transport body and the transport start portion of the 2 nd transport body overlap in a plan view and the transport start portion of the 2 nd transport body is disposed at a position below the transport terminal portion of the 1 st transport body in a side view, the crop can be brought into contact with both the transport terminal portion of the 1 st transport body and the transport start portion of the 2 nd transport body when the crop is delivered from the transport terminal portion of the 1 st transport body to the transport start portion of the 2 nd transport body. This improves the reliability of the transfer of the crop from the conveyance terminal portion of the 1 st conveyance body to the conveyance start portion of the 2 nd conveyance body.

In this case, according to the present invention, since the conveyance start end portion of the guide rail is disposed at a position on the rear side of the conveyance end portion of the 1 st conveyance body, the conveyance end portion of the 1 st conveyance body and the conveyance start end portion of the guide rail can be prevented from being brought into contact, and the conveyance end portion of the 1 st conveyance body and the conveyance start end portion of the 2 nd conveyance body can be easily disposed as described above.

In the present invention, it is preferable that the plant stem guide portion is provided at a transport start end portion of the 2 nd transport body along a side surface of the 2 nd transport body on a side far from the separation portion, and the plant stem guide portion is configured to prevent the plant stem of the crop from being separated from the transport start end portion of the 2 nd transport body.

As described above, if the conveyance starting end portion of the guide rail is disposed at a position on the rear side of the conveyance terminal portion of the 1 st conveyance body, a portion where the guide rail does not exist is generated at the conveyance starting end portion of the 2 nd conveyance body.

According to the present invention, since the stem of the crop is prevented from moving away from the conveyance start end portion of the 2 nd conveyance body by the stem guide portion at the conveyance start end portion of the 2 nd conveyance body, the stem of the crop is transferred from the conveyance start end portion of the 2 nd conveyance body to the conveyance start end portion of the 2 nd conveyance body, and is sandwiched between the 2 nd conveyance body and the guide rail, and the conveyance of the crop can be stabilized.

According to the present invention, the trunk guiding portion is disposed along the side surface of the 2 nd carrier on the side farther from the separating portion, so that the trunk guiding portion does not become an obstacle when the crop is changed to the sideways posture of the separating portion.

In the present invention, it is preferable that the trunk support portion for receiving the trunk of the crop from the lower side and guiding the trunk to the rear side is disposed at a position farther from the separating portion in a plan view than the conveyance start end portion of the 2 nd conveyance body.

According to the present invention, when the crop is changed to the separation portion side posture, the trunk of the crop can be caught by the trunk support portion without dropping, so that the change of the posture of the crop to the horizontal posture is promoted, and the reliability of the transfer of the crop from the transport terminal portion of the 1 st transport body to the transport start portion of the 2 nd transport body can be improved.

The solution corresponding to [ problem 2] is as follows.

The crop harvester is characterized by comprising a machine body, a harvesting part and a2 nd conveying body, wherein the machine body is supported by a travelling device, the harvesting part comprises a left and a right 1 st conveying bodies, the left and the right 1 st conveying bodies are driven to rotate around an axis in the oblique vertical direction, crops in the field are lifted from the field by being clamped from the left side and the right side, the lifted crops are maintained to be in a standing posture and are conveyed to the rear side of the oblique upper side, the 2 nd conveying bodies are driven to rotate around the axis in the left and the right direction, the stems of the crops which are kept in the transverse posture are conveyed to the rear side by being changed from the conveying terminal end posture of the 1 st conveying bodies are kept on the 2 nd conveying bodies, the separating part is arranged on the right side or the left side of the 2 nd conveying bodies, the fruits are separated from the crops conveyed by the 2 nd conveying bodies, the crop harvesting part is provided with a swinging supporting point part, a swinging supporting part, a lifting mechanism and a lifting mechanism are connected with the front harvesting part and the front harvesting part in the front-and-rear-side conveying direction, and the front harvesting part is connected to the front-and-side harvesting part in the front-and-lifting-and-rear-side supporting part around the front supporting part.

According to the present invention, in the harvesting section, the crop in the standing posture of the field is held from the left and right sides by the 1 st conveying body and lifted from the field, and the crop is conveyed to the rear side while being maintained in the standing posture.

When the crop in the standing posture reaches the conveyance terminal portion of the 1 st conveyance body, the crop in the standing posture is changed to the landscape posture at the transfer portion from the conveyance terminal portion of the 1 st conveyance body to the conveyance start portion of the 2 nd conveyance body, and is transferred to the conveyance start portion of the 2 nd conveyance body.

The crop whose posture is changed to the landscape posture is conveyed by the 2 nd conveying body, and at the separating section, the fruit is separated from the crop conveyed by the 2 nd conveying body, and the separated fruit is recovered.

As described above, according to the present invention, in the harvesting unit, the crop in the standing posture of the field is lifted from the field by the 1 st carrier, and then the crop is carried rearward while being maintained in the standing posture, so that the gripping and carrying of the crop by the 1 st carrier are stably performed. This can improve the harvesting performance of the crop harvester.

According to the present invention, since the 1 st carrier is not twisted from the transport start end portion to the transport end portion in the harvesting portion, rollers, guides, and the like for supporting the crop gripping portion of the 1 st carrier from the opposite side of the crop can be easily provided. In this respect, the gripping and carrying of the crop by the 1 st carrier are also performed stably, which is advantageous.

The crop harvester includes a lifting mechanism for lifting and lowering the harvesting unit by supporting the harvesting unit on the machine body so as to be freely lifted and lowered, and may easily perform turning and road running on the field by lifting and lowering the harvesting unit.

According to the present invention, the harvesting unit swings up and down about the support shaft that is spaced upward from the rear portion of the harvesting unit, and the harvesting unit is lifted and lowered by the lifting mechanism. The crop is conveyed to the rear side obliquely upward by the 1 st conveying body, and thereby the harvesting part is arranged in an inclined posture with the front part being lower and the rear part being higher in a side view in a state where the harvesting part is lowered.

In this way, the positional relationship between the conveyance terminal portion of the 1 st conveyance body and the conveyance start portion of the 2 nd conveyance body may be appropriately set in a state where the reinforcing harvesting portion is lowered.

According to the present invention, when the harvesting unit is lifted up in the above-described state, the harvesting unit swings upward about the support shaft center that is separated from the rear portion of the harvesting unit upward, and thereby the rear portion of the harvesting unit (the conveyance terminal portion of the 1 st conveyance body) is separated from the conveyance start portion of the 2 nd conveyance body toward the front side.

When the harvesting portion is lowered, the harvesting portion swings downward about the support shaft center that is spaced upward from the rear portion of the harvesting portion, and the rear portion of the harvesting portion (the conveyance terminal portion of the 1 st conveyance body) moves rearward to approach the conveyance starting portion of the 2 nd conveyance body, and the conveyance terminal portion of the 1 st conveyance body and the conveyance starting portion of the 2 nd conveyance body return to the above-described proper positional relationship.

As described above, according to the present invention, the lifting operation of the harvesting unit can be performed while avoiding contact between the rear portion of the harvesting unit (the conveyance terminal portion of the 1 st conveyance body) and the conveyance start portion of the 2 nd conveyance body and ensuring an appropriate positional relationship between the conveyance terminal portion of the 1 st conveyance body and the conveyance start portion of the 2 nd conveyance body, and harvesting performance of the crop harvester can be improved.

In the present invention, it is preferable that the harvester further comprises a right swing fulcrum portion connected to an upper portion of a right portion of a rear portion of the harvesting portion and extending upward, a right swing supporting portion for supporting the right swing fulcrum portion so as to swing up and down around the supporting shaft, a left swing fulcrum portion connected to an upper portion of a left portion of the rear portion of the harvesting portion and extending upward, and a left swing supporting portion for supporting the left swing fulcrum portion so as to swing up and down around the supporting shaft, wherein a passage through which crops pass is provided between the right swing fulcrum portion and the right swing supporting portion, and between the left swing fulcrum portion and the left swing supporting portion.

According to the present invention, when the crop is conveyed to the rear side by the 1 st conveying body at the harvesting portion, if the crop reaches the conveying terminal portion of the 1 st conveying body, the crop is conveyed to the rear side through the passage between the right swing fulcrum portion and the right swing supporting portion and between the left swing fulcrum portion and the left swing supporting portion, and at the transfer portion from the conveying terminal portion of the 1 st conveying body to the conveying start portion of the 2 nd conveying body, the crop in the standing posture is changed to the horizontal posture and transferred to the conveying start portion of the 2 nd conveying body.

As described above, the crop is easily transported from the transport terminal portion of the 1 st transport body to the transport start portion of the 2 nd transport body without being disturbed by the swing fulcrum portion and the swing supporting portion.

According to the present invention, the rear part of the harvesting part is swingably supported at two points of the right swing fulcrum part and the right swing supporting part, and the left swing fulcrum part and the left swing supporting part, and therefore, the present invention is advantageous in terms of the supporting strength of the harvesting part.

In the present invention, it is preferable that a drive shaft and a transmission shaft are provided in the swing fulcrum portion, the drive shaft is disposed in a vertical direction, the 1 st carrier is driven to rotate, and the transmission shaft transmits power to the drive shaft from an outer position with respect to a portion where the crop is held by the 1 st carrier.

According to the present invention, the space and the swing fulcrum portion on the upper side of the rear portion of the harvesting portion can be effectively utilized, and the transmission system to the 1 st conveyance body can be compactly arranged, which is advantageous in terms of simplification of the structure of the transmission system to the 1 st conveyance body.

According to the present invention, the transmission system to the 1 st carrier is disposed above the rear part of the harvesting part (the carrier terminal part of the 1 st carrier), and the transmission system to the 1 st carrier is not disposed below the rear part of the harvesting part (the carrier terminal part of the 1 st carrier).

Thus, the transmission system to the 1 st carrier is not arranged near the trunk of the crop at the position where the crop in the standing posture is changed to the horizontal posture, so that the crop in the standing posture is easily changed to the horizontal posture.

In the present invention, it is preferable that the present invention further comprises a posture changing section connected to an upper portion of the swing fulcrum section, wherein the posture changing section changes a posture of the crop from the conveying terminal section of the 1 st conveying body to a horizontal posture in which a fruit-bearing portion of the crop is positioned on a side closer to the separating section than the trunk of the crop, and the trunk of the crop having the posture changed to the horizontal posture is held by the 2 nd conveying body.

When the crop in the upright posture is changed to the horizontal posture and is transferred to the transport start end portion of the 2 nd transport body at the transfer portion from the transport end portion of the 1 st transport body to the transport start end portion of the 2 nd transport body, the crop in the upright posture is easily changed to the horizontal posture by the posture changing portion and is transferred to the transport start end portion of the 2 nd transport body, and the transfer of the crop from the transport end portion of the 1 st transport body to the transport start end portion of the 2 nd transport body is smoothly performed, thereby improving the harvesting performance of the crop harvester.

According to the present invention, the posture changing section is connected to the upper portion of the swing fulcrum section and is disposed on the upper side of the rear portion (the conveyance terminal portion of the 1 st conveyance body) of the harvesting section, so that the posture changing section acts on the upper portion of the crop, and the crop in the standing posture is smoothly changed to the horizontal posture by the posture changing section.

In the present invention, it is preferable that the posture changing section is provided with a guide section, an annular rotor, and a claw body, the guide section is disposed so as to be inclined from a conveyance terminal section of the 1 st conveyance body toward a conveyance start section of the 2 nd conveyance body in a plan view, the annular rotor is rotationally driven around an axis in a vertical direction, the claw body is mounted on the annular rotor at a predetermined interval in a movement direction of the annular rotor along the guide section from a conveyance terminal section side of the 1 st conveyance body toward a conveyance start section side of the 2 nd conveyance body, and the claw body pushes a crop from the conveyance terminal section side of the 1 st conveyance body toward the conveyance start section side of the 2 nd conveyance body in accordance with rotation of the annular rotor.

According to the present invention, the claw body (annular rotating body) of the posture changing section is moved along the guide section, whereby the crop is pushed from the conveyance terminal end side of the 1 st conveyance body to the conveyance start end side of the 2 nd conveyance body, and the posture of the crop in the standing posture is changed to the sideways posture by the guide section of the posture changing section.

Thus, when the crop is transferred from the conveyance terminal portion of the 1 st conveyance body to the conveyance start portion of the 2 nd conveyance body, the crop does not remain in the posture changing portion, and the posture of the crop in the standing posture is easily changed to the horizontal posture by the posture changing portion.

According to the present invention, the annular rotor of the posture changing section is rotationally driven by the power of the drive shaft that rotationally drives the 1 st carrier, so that the drive shaft that rotationally drives the 1 st carrier can be used as the drive system for the annular rotor of the posture changing section, which is advantageous in terms of simplification of the structure.

In this case, since the swing fulcrum portion is disposed between the rear portion of the harvesting portion and the posture changing portion, the space between the rear portion of the harvesting portion and the posture changing portion is effectively utilized, and the transmission system to the swing fulcrum portion, the 1 st carrier, and the endless rotating body of the posture changing portion is compactly disposed.

In the present invention, it is preferable that the harvester further comprises a load support portion connected to the harvesting portion over a lower portion of the swing support portion of the body, and configured to allow the harvesting portion to be lifted and lowered, and to support a load applied to the harvesting portion in a lateral direction.

When the rear part of the harvesting unit is supported by the machine body so as to be vertically swingable, according to the present invention, the load supporting unit is connected to the harvesting unit and the lower part of the swing supporting unit of the machine body, and the load acting on the harvesting unit in the lateral direction is supported by the load supporting unit.

Thus, the load acting on the harvesting unit in the lateral direction can be prevented from acting on the swing fulcrum portion and the swing support portion, and the swing fulcrum portion and the swing support portion can be protected.

In the present invention, it is preferable that the load supporting portion is provided with a1 st supporting member and a 2 nd supporting member, the 1 st supporting member is supported so as to be swingable up and down around an axis in a left-right direction of the machine body, and extends forward, and the 2 nd supporting member is supported so as to be swingable around an axis in a left-right direction of a front portion of the 1 st supporting member, and is connected so as to be swingable around an axis in a left-right direction of the harvesting portion.

In the case where the load support portion is configured to allow the harvesting portion to be lifted, the 1 st support member and the 2 nd support member are provided to be swingable in the load support portion, so that the harvesting portion can be easily lifted.

The solution corresponding to [ problem 3] is as follows.

The crop harvester is characterized by comprising a harvesting part, an annular conveying body, a guide rail and a separating part, wherein the harvesting part harvests crops in a field, the annular conveying body is rotationally driven around a transverse axis, the guide rail is arranged along the conveying body, the separating part is arranged at the transverse side of the conveying body, the conveying body is provided with a 1 st protruding part and a 2 nd protruding part, the 1 st protruding part is arranged at a 1 st interval on one side of the conveying body far from the separating part, the 1 st protruding part is arranged at a 2 nd interval on the side of the conveying body, the 2 nd protruding part is arranged at a 2 nd interval on the side of the conveying body near the separating part, the 2 nd interval is arranged at a 2 nd interval on the side of the conveying body, the 2 nd interval is set to be larger than the 1 st interval, or the 1 st interval is set to be larger than the 2 nd interval, the dry plants of the crops in the harvesting part are inverted by the conveying body and the separated from the guide rail, the crops are recovered by the rotation of the conveying body and the separated from the guide rail, and the fruits are conveyed by the separated from the conveying body.

According to the present invention, when the stem of the crop is gripped by the carrier and the guide rail, a portion of the stem of the crop that is farther from the separation portion may be located between the 1 st projection and the 1 st projection of the carrier in the moving direction of the carrier. The portion of the stem of the crop, which is closer to the separation portion, may be located between the 2 nd protrusion and the 2 nd protrusion of the carrier in the moving direction of the carrier. The part of the plant trunk of the crop, which is farther from the separating section, and the part of the plant trunk of the crop, which is closer to the separating section, are located between the carrier and the guide rail in the up-down direction.

In the above state, the carrier is rotationally driven to move the 1 st projection and the 2 nd projection of the carrier, and the crop is carried.

In this case, the stem of the crop can be moved upward and downward with respect to the carrier while being carried by the carrier between the 1 st projection and the 1 st projection of the carrier and between the 2 nd projection and the 2 nd projection of the carrier.

In the above state, according to the present invention, the 2 nd interval of the 2 nd protrusion of the carrier is set to be larger than the 1 st interval of the 1 st protrusion of the carrier. Or the 1 st interval of the 1 st projecting part of the carrying body is set to be larger than the 2 nd interval of the 2 nd projecting part of the carrying body.

Thus, if the 2 nd interval of the 2 nd protrusion of the carrier is set to be larger than the 1 st interval of the 1 st protrusion of the carrier, the portion of the plant trunk closer to the separation portion can move upward and downward in the moving direction of the carrier between the 2 nd protrusion and the 2 nd protrusion of the carrier with the vicinity of the 1 st portion of the carrier on the side farther from the separation portion as a fulcrum.

If the 1 st spacing of the 1 st projection of the carrier is set to be larger than the 2 nd spacing of the 2 nd projection of the carrier, the portion of the plant trunk distant from the separation portion can move upward and downward in the moving direction of the carrier between the 1 st projection and the 1 st projection of the carrier with the vicinity of the 2 nd portion of the carrier on the side closer to the separation portion as a fulcrum.

According to the present invention, when the crop is carried in the horizontal posture while the stem of the crop is held by the carrier and the guide rail, the upper portion of the crop is in a state of being capable of vibrating upward and downward with respect to the carrier in the moving direction of the carrier, with the vicinity of the carrier as a fulcrum, while maintaining the horizontal posture.

Thus, even if a large separation action is to be applied to the upper part of the crop (the part with the fruit) at the separation section, the upper part of the crop moves so as to vibrate upward and downward in the moving direction of the carrier, as described above, whereby the large separation action can be released from the upper part of the crop, a state in which the stem of the crop is bent can be avoided, and improvement of the separation performance of separating the fruit from the crop by the separation section can be achieved.

If the movement of the upper part of the crop with respect to the carrier is too large as described above, it may be difficult to separate the fruit from the crop.

According to the present invention, the movement of the stem of the crop is suppressed between the 1 st projection and the 1 st projection of the carrier and between the 2 nd projection and the 2 nd projection of the carrier, and the excessive movement of the upper portion of the crop with respect to the carrier is suppressed, so that the lowering of the separation performance of the fruit from the crop by the separation portion is not caused.

In the present invention, it is preferable that the 2 nd interval is set to be larger than the 1 st interval.

According to the present invention, the portion of the trunk of the crop, which is closer to the separating portion, can move upward and downward between the 2 nd protrusion and the 2 nd protrusion of the carrier in the moving direction of the carrier, with the vicinity of the 1 st portion of the carrier, which is farther from the separating portion, as a fulcrum.

In this case, the length from the 2 nd part of the carrier to the upper part of the crop is longer than the length from the 1 st part of the carrier to the upper part of the crop, and the movement width of the upper part of the crop with respect to the carrier is larger, which is advantageous in that the separation performance of the fruits from the crop by the separation section is improved.

In the present invention, it is preferable that the guide rail is disposed along an upper side of the transport body, and a portion of the guide rail on a side closer to the separation portion is disposed on a side farther from the separation portion than the portion 2 in a plan view.

According to the present invention, since the portion of the guide rail on the side closer to the separating portion is not present immediately above the portion 2 of the carrier on the side closer to the separating portion in a state where the carrier is disposed on the lower side and the guide rail is disposed on the upper side, the upper portion of the crop is easily moved upward from the sideways posture even in a state where the stem of the crop is held between the carrier and the guide rail.

This makes it possible to increase the direction in which the upper part of the crop can move, to easily release a large separation effect from the upper part of the crop at the separation part, to avoid a state in which the stems of the crop are bent, and to improve the separation performance of the fruits from the crop by the separation part.

Even if the upper part of the crop moves upward from the sideways posture, the crop is easily restored to the sideways posture due to the dead weight of the crop, so that in this regard, improvement of the separation performance of the fruits separated from the crop by the separation part can be achieved.

In the present invention, it is preferable that the separation section is provided with an upper rotating body and a lower rotating body, the upper rotating body is rotatably driven around an upper axis oriented so as to intersect the carrier in a plan view, the lower rotating body is rotatably driven around a lower axis along the upper axis at a lower side of the upper axis, and the carried crop passes between the upper rotating body and the lower rotating body, and the upper rotating body and the lower rotating body collide with the crop, whereby the fruit is separated from the crop.

According to the present invention, in the separating section, the upper rotating body collides with the crop from the upper side, and the lower rotating body collides with the crop from the lower side, and separation can be performed without leaving fruits in each section of the crop.

According to the present invention, the upper portion of the crop can move upward and downward in the moving direction of the carrier while maintaining the horizontal posture. By providing the upper rotating body and the lower rotating body in the separating portion, the crop can be easily moved upward and downward in the moving direction of the carrier between the upper rotating body and the lower rotating body.

In the present invention, it is preferable that the upper rotating body and the lower rotating body are disposed so as to be inclined with respect to the transport body in a plan view so that a portion of the upper rotating body and the lower rotating body on the transport body side is located closer to a transport start end portion side of the transport body than a portion of the upper rotating body and the lower rotating body on the opposite side of the transport body, and a rotation direction of the upper rotating body and the lower rotating body is set so that a crop passing between the upper rotating body and the lower rotating body is pushed by the upper rotating body and the lower rotating body to a transport start end portion side of the transport body.

According to the present invention, when the upper rotating body and the lower rotating body collide with the crop passing between the upper rotating body and the lower rotating body, a component force is generated to pull the crop from the stem side (carrier side) to the upper side in a state where the stem of the crop is held by the carrier and the guide rail.

Thus, the fruit can be easily separated from the crop without the crop being compressed to be bent or folded.

Drawings

Fig. 1 is a view showing embodiment 1 (the same applies to fig. 14 below), and is a left side view of a green soybean harvester.

Fig. 2 is a top view of a green soy harvester.

Fig. 3 is a schematic diagram showing a transmission system from an engine to each part.

Fig. 4 is a top view of the harvesting portion.

Fig. 5 is a top view of the rear of the harvesting portion and the vicinity of the separating portion.

Fig. 6 is a sectional view seen from the VI-VI direction of fig. 5.

Fig. 7 is a sectional view seen from the VII-VII direction of fig. 5.

Fig. 8 is a left side view of the vicinity of the conveyance terminal portion of the 1 st conveyance body, the conveyance start portion of the 2 nd conveyance body, the posture changing portion, and the dust cover.

Fig. 9 is a plan view of the vicinity of the conveyance end portion of the 1 st conveyance body, the conveyance start portion of the 2 nd conveyance body, and the posture changing portion.

Fig. 10 is a longitudinal sectional rear view showing the transmission system of the 1 st conveyance body and the posture changing section.

Fig. 11 is a perspective view of the conveyance terminal portion of the 1 st conveyance body, the conveyance start portion of the 2 nd conveyance body, and the vicinity of the dust cover.

Fig. 12 is a plan view of the vicinity of the conveyance end portion of the 1 st conveyance body and the conveyance start portion of the guide rail.

Fig. 13 is a longitudinal cross-sectional rear view of the vicinity of the conveyance starting end portion of the 2 nd conveyance body and the conveyance starting end portion of the guide rail.

Fig. 14 is a longitudinal cross-sectional rear view of the vicinity of the 2 nd carrier and the guide rail.

Fig. 15 is a view showing embodiment 2 (the same applies to fig. 27 below), and is a left side view of the green soybean harvester.

Fig. 16 is a top view of a green soy harvester.

Fig. 17 is a cross-sectional top view of the rear portion of the harvesting portion and the vicinity of the separating portion.

Fig. 18 is a top view of the harvesting portion.

Fig. 19 is a left side view of the vicinity of the harvesting portion in a state of being lowered.

Fig. 20 is a left side view of the vicinity of the harvesting portion in a state of being lifted.

Fig. 21 is a perspective view of the vicinity of the harvesting portion as viewed from the obliquely rear side.

Fig. 22 is a left side view of the vicinity of the conveyance terminal portion of the 1 st conveyance body, the conveyance start portion of the 2 nd conveyance body, the posture changing portion, and the dust cover.

Fig. 23 is a plan view of the vicinity of the conveyance end portion of the 1 st conveyance body, the conveyance start portion of the 2 nd conveyance body, and the posture changing portion.

Fig. 24 is a longitudinal sectional rear view showing the transmission system of the 1 st conveyance body and the posture changing section.

Fig. 25 is a schematic diagram showing a transmission system from an engine to each part.

Fig. 26 is a plan view showing a harvesting operation mode.

Fig. 27 is a plan view showing a harvesting operation mode.

Fig. 28 is a view showing embodiment 3 (the same applies to fig. 41 below), and is a left side view of the green soybean harvester.

Fig. 29 is a top view of a green soy harvester.

Fig. 30 is a cross-sectional top view of the rear part of the harvesting portion, the vicinity of the 1 st lower rotating body and the 2 nd lower rotating body of the separating portion.

Fig. 31 is a left side view of the 2 nd carrier and the guide rail.

Fig. 32 is a left side view of the vicinity of the rear part of the harvesting part, the front part of the 2 nd carrier and the guide rail, and the posture changing part.

Fig. 33 is a longitudinal sectional rear view of the vicinity of the conveyance starting end portion of the 2 nd conveyance body and the guide rail, and the 1 st upper rotating body and the 1 st lower rotating body of the separation portion.

Fig. 34 is a cross-sectional view of the 1 st upper rotating body (the 2 nd upper rotating body) and the 1 st lower rotating body (the 2 nd lower rotating body).

Fig. 35 is a perspective view of the vicinity of the conveyance starting end of the 2 nd conveyance body and the guide rail.

Fig. 36 is an exploded perspective view of the 2 nd carrier.

Fig. 37 is an exploded perspective view of the guide rail.

Fig. 38 is a vertical sectional left side view of the 2 nd carrier and the guide rail.

Fig. 39 is a longitudinal cross-sectional rear view of the 2 nd carrier and the guide rail.

Fig. 40 is a plan view of the 2 nd carrier showing a gripping state of the crop.

Fig. 41 is a cross-sectional view taken from the XLI-XLI direction in fig. 40.

Detailed Description

[ Embodiment 1]

An embodiment (embodiment 1) which is an example of the present invention will be described below with reference to the drawings.

Fig. 1 to 14 show a green soybean harvester as an example of a crop harvester.

In fig. 1 to 14, F represents a "front direction" of the body 1, B represents a "rear direction" of the body 1, U represents an "upper direction" of the body 1, and D represents a "lower direction" of the body 1. R represents the "right direction" of the machine body 1, and L represents the "left direction" of the machine body 1.

(Integral Structure of Green soy harvester of embodiment 1)

As shown in fig. 1 and 2, the machine body 1 is supported by a left-right crawler-type traveling device 2, a harvesting unit 3 is provided at the left part of the front part of the machine body 1, and a driving unit 4 is provided at the right part of the front part of the machine body 1. The rear part of the machine body 1 is provided with a separating part 5, and the right part of the machine body 1 is provided with a supporting table 6 and a working deck (deck) 7.

(Outline of harvesting procedure of Green soy bean harvester of embodiment 1)

As shown in fig. 1 and 2, the harvesting unit 3 includes a left and right 1 st conveying body 11 rotatably driven about axes P1 and P2 extending in the vertical direction.

As the machine body 1 advances, the crop a in the standing posture of the field is gripped from the left and right sides by the left and right 1 st conveying bodies 11 at the harvesting section 3, and the crop a is pulled out and lifted by the left and right 1 st conveying bodies 11, and is conveyed obliquely upward and rearward along the harvesting section 3 while maintaining the standing posture.

On the left side of the separating section 5, the 2 nd conveyance body 12 rotationally driven about the axis in the left-right direction is extended rearward from the conveyance terminal portion 11b of the 1 st conveyance body 11, and the guide rail 13 is disposed along the 2 nd conveyance body 12.

When the crop a reaches the conveyance terminal 11b of the 1 st conveyance body 11, the posture of the crop a in the standing posture is changed to the horizontal posture on the separation section 5 side at the transfer section from the conveyance terminal 11b of the 1 st conveyance body 11 to the conveyance starting end 12a of the 2 nd conveyance body 12, and is transferred to the conveyance starting end 12a of the 2 nd conveyance body 12.

The stem A1 (see fig. 5 and 8) of the crop a in the horizontal posture is sandwiched (held) between the 2 nd conveying body 12 and the guide rail 13, and the crop a is conveyed rearward by the 2 nd conveying body 12.

As shown in fig. 1, 5, 6, and 7, the separating section 5 includes upper and lower two sets of rotating bodies 8 and 9 that are driven to rotate about axes in the left-right direction, a collection conveyor 10 that is disposed in the front-rear direction below the rotating bodies 8 and 9, a conveying conveyor 14 that is disposed in the left-right direction below the rear portion of the collection conveyor 10, a discharge conveyor 15 that is disposed at a predetermined interval from the rear portion of the collection conveyor 10 to the rear side, and a fan 16 that is disposed below the collection conveyor 10.

When the crop a in the horizontal posture is conveyed to the rear side by the 2 nd conveying body 12, the crop a passes between the upper and lower rotating bodies 8, the fruit A2 is separated from the crop a by the rotation of the rotating bodies 8, and the separated fruit A2 falls down to the collecting conveyor 10.

The crop a then passes between the upper and lower rotating bodies 9, and the fruit A2 is separated from the crop a by the rotation of the rotating bodies 9, and the separated fruit A2 falls down to the recovery conveyor 10. The crop a from which the fruit A2 is separated is discharged to the field from the conveyance terminal 12b of the 2 nd conveyance body 12. When the fruits A2 are separated from the crops a by the rotating bodies 8, 9, the crushed slag such as leaves also falls down together to the recovery conveyor 10.

The recovery conveyor 10 is rotationally driven to the rear side, and the fruit A2 and the scraps falling down to the recovery conveyor 10 are conveyed to the rear side by the recovery conveyor 10, and fall from the rear side of the recovery conveyor 10 to the conveying conveyor 14.

The carrying air of the fan 16 flows from the lower side to the rear side of the collecting conveyor 10, passes between the collecting conveyor 10 and the discharge conveyor 15, and flows from the upper side to the rear side of the discharge conveyor 15.

When the fruit A2 and the scraps fall from the rear of the collection conveyor 10, the fruit A2 falls to the conveying conveyor 14 against the conveying wind of the fan 16. The slag is carried on the discharge conveyor 15 by the carrying wind of the fan 16, and the slag carried on the discharge conveyor 15 is carried to the rear side by the discharge conveyor 15 and discharged to the field.

As shown in fig. 2 and 5, the transport conveyor 14 is driven to rotate toward the support table 6, and a plurality of recovery boxes 17 are mounted on the support table 6. The fruit A2 dropped onto the conveying conveyor 14 is conveyed toward the support table 6 by the conveying conveyor 14, and is put into a recovery box 17 located at the conveying terminal end of the conveying conveyor 14. The auxiliary operator of the working deck 7 changes the recovery tank 17 to an empty recovery tank 17 when the recovery tank 17 at the conveyance terminal end of the conveyance conveyor 14 is full.

(Structure of Transmission System from Engine to parts according to embodiment 1)

As shown in fig. 3, an engine 18 is supported at a lower portion of the driving unit 4. A transmission case 19 is supported at the left and right centers of the front portion of the machine body 1, and a hydrostatic continuously variable transmission 20 is connected to the transmission case 19.

The power of the engine 18 is transmitted to an input shaft of the continuously variable transmission 20 via a transmission belt 21, and the power of the continuously variable transmission 20 is transmitted to the traveling device 2 via a sub-transmission (not shown) or the like inside the transmission case 19. The power of the continuously variable transmission 20 is transmitted to the drive shaft 26 via the gear drive mechanism 22, the drive belt 23, the drive shaft 24, and the drive belt 25, and is transmitted from the drive shaft 26 to the harvesting unit 3 and the posture changing unit 62 (see the structure of the posture changing unit of embodiment 1 described later).

The power of the engine 18 is transmitted to the driving mechanism 32 via the belt 27, the transmission shaft 28, the belt 29, the transmission shaft 30, and the belt 31, and the 2 nd carrier 12 is rotationally driven by the driving mechanism 32.

The power of the drive shaft 28 is transmitted to the recovery conveyor 10 and the discharge conveyor 15 via the drive belt 34, the gear type drive mechanism 35, and the drive belt 36, and the recovery conveyor 10 and the discharge conveyor 15 are rotationally driven.

The power of the recovery conveyor 10 is transmitted to the transport conveyor 14 via a belt 37, a bevel gear type transmission mechanism 38, and a transmission chain 39, and the transport conveyor 14 is rotationally driven.

The power of the transmission shaft 28 is transmitted to the fan 16 via the transmission belt 33, and the fan 16 is rotationally driven. The power of the drive shaft 28 is transmitted to the rotating bodies 8 and 9 via the drive belt 34, the drive shaft 40, and the drive belts 41 and 42, and the rotating bodies 8 and 9 are rotationally driven.

(Structure of harvesting portion (1 st conveying body) of embodiment 1)

As shown in fig. 1, 2, and 4, a left-right linear support frame 43 is provided at the harvesting unit 3, and a support frame 44 is connected across the lower sides of the left-right support frame 43.

The left and right driven wheels 45 are rotatably supported around an axis P1 extending in the oblique vertical direction at the front portions of the left and right support frames 43. The left and right driving wheels 46 are rotatably supported around an axis P2 extending in the vertical direction in the rear portions of the left and right support frames 43. In this case, the axis P1 and the axis P2 are parallel to each other.

A right 1 st conveyance body 11 made of rubber tape is attached to the right driven wheel 45 and the right driving wheel 46. A left 1 st conveyance body 11 made of rubber tape is attached to the left driven wheel 45 and the left driving wheel 46.

The 1 st and second transport bodies 11 are fitted over the entire length of the support frame 43. The plurality of rollers 47 are rotatably supported by the support frame 43, and the rollers 47 support the opposite side of the engaging portion (the nip portion of the crop a) of the 1 st conveyance body 11.

A left-right divider 48 and a core shovel 49 are attached to the front portions of the left-right support frames 43.

The left and right support frames 43 are maintained at equal intervals in the left-right direction, and the support frames 43 are supported in the front-rear direction on the left portion of the front portion of the body 1 in a posture inclined in a side view so that the front portion of the support frames 43 is on the lower side and the rear portion of the support frames 43 is on the upper side.

In the 1 st conveyance body 11, the vicinity of the driven wheel 45 is the conveyance start end 11a, and the vicinity of the driving wheel 46 is the conveyance end 11b. Accordingly, the 1 st and the 1 st transport bodies 11 extend from the transport start end 11a to the transport end 11b of the 1 st transport body 11, and extend straight to the obliquely upper rear side without twisting.

(Structure of drive System of harvesting portion of embodiment 1)

As shown in fig. 5, 8, and 9, a drive box 50 is supported above the conveyance terminal 11b of the right 1 st conveyance body 11, a drive box 51 is supported above the conveyance terminal 11b of the left 1 st conveyance body 11, and a posture changing section 62 (see the configuration of the posture changing section of embodiment 1 described later) is supported above the drive box 51.

The drive shaft 52 is supported by the drive boxes 50 and 51 along the axis P2, and the drive wheel 46 is coupled to a lower portion of the drive shaft 52. The drive shaft 53 is supported laterally to the drive boxes 50, 51, and the bevel gear 52a of the drive shaft 52 meshes with the bevel gear 53a of the drive shaft 53.

The drive shaft 26 (see fig. 3) is disposed below the transport terminal portion 11b of the 1 st transport body 11 in the left-right direction, and a belt 54 is attached over the pulley 26a of the drive shaft 26 and the pulley 53b of the drive shaft 53.

With the above configuration, the power of the drive shaft 26 is transmitted to the drive shaft 52 via the transmission belt 54 and the transmission shaft 53, the right drive shaft 52 (right drive wheel 46) is rotationally driven, and the right 1 st carrier 11 is rotationally driven in the counterclockwise direction in fig. 4 and 5. The left drive shaft 52 (left drive wheel 46) is driven to rotate, and the left 1 st conveyance body 11 is driven to rotate in the clockwise direction in fig. 4 and 5.

(Structure of the 2 nd carrier of embodiment 1)

As shown in fig. 1,2,3, and 8, a drive mechanism 32 is supported on the left part of the machine body 1, and the drive mechanism 32 includes a drive sprocket 32a that is rotationally driven about the axis in the left-right direction. The rotation wheels 55 and 56 are rotatably supported around the axis in the left-right direction at the front part of the left part of the body 1, and the rotation wheel 57 is rotatably supported around the axis in the left-right direction at the rear part of the left part of the body 1.

The 2 nd carrier 12 is attached to the drive sprocket 32a of the drive mechanism 32 and the rotation wheels 55, 56, 57. The 2 nd carrier 12 is a metal chain, and has a triangular convex portion in side view to the outside. The 2 nd carrier 12 is rotationally driven in the clockwise direction in fig. 1 and 8 by the drive sprocket 32a of the drive mechanism 32.

The 2 nd carrier 12 extends rearward from the carrier terminal portion 11b of the 1 st carrier 11, is disposed in the front-rear direction at the left portion of the machine body 1, and is disposed with the separating portion 5 at the right side of the 2 nd carrier 12. In the 2 nd carrier 12, a portion between the rotating wheel 55 and the rotating wheel 56 is a conveyance start end portion 12a, and a vicinity of the rotating wheel 57 is a conveyance end portion 12b.

As shown in fig. 1 and 8, the front portion (portion of the rotating wheel 55) of the conveyance starting end portion 12a of the 2 nd conveyance body 12 is disposed below the rear portion (portion of the rotating wheel 56) of the conveyance starting end portion 12a of the 2 nd conveyance body 12, and the conveyance starting end portion 12a of the 2 nd conveyance body 12 is disposed in an inclined posture obliquely upward along the conveyance terminal end portion 11b of the 1 st conveyance body 11.

The rear portion (portion of the turning wheel 56) of the conveyance starting end portion 12a of the 2 nd conveyance body 12 is disposed in a substantially horizontal posture in a side view over the portion of the conveyance terminal end portion 12 b.

(Structure of guide Rail of embodiment 1)

As shown in fig. 1, 8, 11, and 14, a support frame 58 is supported in the front-rear direction on the upper portion of the left part of the machine body 1, and a plurality of support rods 59 are supported by the support frame 58 so as to be movable up and down.

The guide rail 13 is a short channel-like member with its open side arranged in a line in the front-rear direction downward, and adjacent front-rear channel-like members are connected to each other by pins so as to be bent in the up-down direction.

The guide rail 13 extends rearward along the upper side of the 2 nd carrier 12. The pin connecting the channel-like members of the guide rail 13 is supported at the lower portion of the support rod 59, and the guide rail 13 (channel-like member) is supported so as to be movable up and down. The guide rail 13 is pressed against the 2 nd carrier 12 by a spring 60 that urges the support rod 59 downward.

In the guide rail 13, the channel-like member of the head of the 2 nd conveyance body 12 on the conveyance start end 12a side is the conveyance start end 13a. The conveyance starting end 13a of the guide rail 13 is located slightly behind the rear portion (portion of the rotating wheel 56) of the conveyance starting end 12a of the 2 nd conveyance body 12.

According to the above configuration, as described later (the state of the crop at the transfer portion from the transfer end portion of the 1 st transfer body to the transfer start portion of the 2 nd transfer portion in embodiment 1), when the stem A1 of the crop a is clamped between the 2 nd transfer body 12 and the guide rail 13, the stem A1 of the crop a is bent by the stem A1 of the crop a, and lifted upward, and the stem A1 of the crop a is clamped between the 2 nd transfer body 12 and the guide rail 13 by the biasing force of the spring 60 with a sufficient clamping force.

(Structure of guide Member of embodiment 1)

As shown in fig. 8, 11, 12, and 14, the guide member 61 made of round bar material is provided. A guide member 61 is attached to a side surface 13a1 of the conveyance starting end 13a of the guide rail 13 on the side closer to the separation section 5, and the guide member 61 is projected forward along the 2 nd conveyance body 12.

The guide member 61 protrudes obliquely upward and forward from the rear portion (portion of the rotation wheel 56) of the conveyance starting end portion 12a of the 2 nd conveyance body 12 in side view (see fig. 8).

The guide member 61 extends obliquely leftward and forward from the rear portion (portion of the rotation wheel 56) of the conveyance starting end portion 12a of the 2 nd conveyance body 12 toward the left 1 st conveyance body 11 in plan view (see fig. 12).

The guide member 61 is attached to the conveyance starting end 13a of the guide rail 13, whereby the guide member 61 moves up and down integrally with the conveyance starting end 13a of the guide rail 13.

(Positional relationship of the 1 st conveying body, the 2 nd conveying body, and the guide rail according to embodiment 1)

As shown in fig. 5, 8, and 9, the conveyance terminal portion 11b of the 1 st conveyance body 11 and the conveyance starting portion 12a of the 2 nd conveyance body 12 are disposed so as to overlap each other in a plan view, and the conveyance starting portion 12a of the 2 nd conveyance body 12 is disposed at a position below the conveyance terminal portion 11b of the 1 st conveyance body 11 in a side view.

The 2 nd carrier 12 is disposed so that the left and right central portions 12c of the conveyance starting end portions 12a of the 2 nd carrier 12 are displaced to a position closer to the separating portion 5 (to the right) in a plan view with respect to the virtual line B1 extending in the conveyance direction of the 1 st carrier 11 from the portions of the 1 st carrier 11 that are in contact with each other.

As shown in fig. 12 and 14, a side surface 13a1 of the guide rail 13 on the side closer to the separating portion 5 (right side) is arranged between a side surface 12a1 of the 2 nd carrier 12 on the side closer to the separating portion 5 (right side) and a side surface 12a2 on the side farther from the separating portion 5 (left side) in plan view.

The side surface 13a2 of the guide rail 13 on the side farther from the separating portion 5 (left side) is disposed on the side farther from the separating portion 5 (left side) with respect to the side surface 12a2 of the 2 nd carrier 12 on the side farther from the separating portion 5 (left side) in plan view.

As shown in fig. 5 and 8, the rear portion (portion of the rotating wheel 56) of the conveyance starting end portion 12a of the 2 nd conveyance body 12 is disposed at a position on the rear side of the conveyance terminal end portion 11b of the 1 st conveyance body 11 in a side view. The guide member 61 and the conveyance starting end 13a of the guide rail 13 are disposed at positions on the rear side of the conveyance terminal end 11b of the 1 st conveyance body 11 in a side view.

The conveyance terminal portion 11b of the 1 st conveyance body 11 is placed between the front end portion of the guide member 61 and the conveyance start end portion 12a of the 2 nd conveyance body 12 in a side view, and the front end portion of the guide member 61 is disposed at a position above the conveyance terminal portion 11b of the 1 st conveyance body 11 in a side view.

(Structure of posture changing section of embodiment 1)

As shown in fig. 1 and 2, a posture changing section 62 is attached to an upper portion of the conveyance terminal 11b (the drive box 51) of the 1 st conveyance body 11.

As shown in fig. 8, 9, and 10, the posture changing section 62 includes a guide section 63, an annular rotor 64, and a claw body 65.

The guide 63 includes two sets, i.e., an upper side and a lower side, and is disposed so as to be inclined from the conveyance terminal portion 11b (the drive box 51) of the 1 st conveyance body 11 toward the conveyance starting portion 12a of the 2 nd conveyance body 12 toward a side (right side) closer to the separation portion 5 in a plan view. At the guide portion 63, a side portion on the side closer to the separation portion 5 (right side) is a guide portion 63a.

In the drive box 51, the drive shaft 52 is extended upward, the transmission shaft 66 is rotatably supported at the position of the axis P2 of the guide 63, and the drive shaft 52 and the transmission shaft 66 are connected via the connecting member 67.

Between the upper and lower guide portions 63, a drive sprocket 68 is rotatably supported, and a drive chain 69 is attached to the drive sprocket 68 over the sprocket 66a of the drive shaft 66.

The driven sprocket 70 is rotatably supported between the upper and lower guide portions 63, and the driven sprocket 71 is relatively rotatably fitted to the drive shaft 66. Between the upper and lower guide portions 63, a chain-like annular rotor 64 is mounted over the driving sprocket 68 and the driven sprockets 70 and 71.

Thus, the power of the drive shaft 52 is transmitted to the drive sprocket 68 via the transmission shaft 66 and the transmission chain 69, the drive sprocket 68 is rotationally driven, and the annular rotor 64 is rotationally driven in the clockwise direction in fig. 9.

The claw body 65 is attached to the annular rotating body 64 at a predetermined interval in the moving direction of the annular rotating body 64. The claw body 65 is attached to the annular rotating body 64 so that the posture thereof can be freely changed to an operating posture protruding outward from the annular rotating body 64 and a non-operating posture thereof falling down along the annular rotating body 64.

When the pawl 65 is rotationally driven in the clockwise direction in fig. 9 integrally with the annular rotor 64, the pawl 65 is operated to the inactive posture when the pawl 65 reaches the drive sprocket 68, and is operated to the active posture from a position slightly near the drive sprocket 68.

When the claw body 65 is operated to the active posture slightly beyond the driven sprocket 70, it moves from the driven sprocket 71 to the driving sprocket 68 while maintaining the active posture, and when it reaches the driving sprocket 68, it is operated to the inactive posture.

(Positional relationship between the posture changing section of embodiment 1 and the 1 st and 2 nd conveying bodies)

As shown in fig. 1 and 8, the posture changing section 62 is disposed at a position above the conveyance terminal section 11b (the drive box 51) of the 1 st conveyance body 11 and at a position away from the conveyance terminal section 11b (the drive box 51) of the 1 st conveyance body 11 in a side view.

As shown in fig. 1 and 8, the posture changing section 62 is disposed obliquely upward from a position above the conveyance terminal section 11b (the drive box 51) of the 1 st conveyance body 11 in a side view, and overlaps the conveyance starting section 12a of the 2 nd conveyance body 12 in a plan view, as shown in fig. 2 and 9.

As shown in fig. 2 and 9, in the posture changing section 62, the guide section 63a of the guide section 63 is disposed obliquely from the conveyance terminal section 11b (the drive box 51) of the 1 st conveyance body 11 to the conveyance start section 12a of the 2 nd conveyance body 12 so as to be inclined to the side (right side) closer to the separation section 5 in a plan view.

The annular rotor 64 is driven to rotate around the axial center in the up-down direction, and is moved from the conveyance terminal end 11b (the drive box 51) of the 1 st conveyance body 11 to the conveyance start end 12a of the 2 nd conveyance body 12 along the guide 63a of the guide 63 to the position of the drive sprocket 68.

(Positional relationship of the drive System of the 1 st transport body to the posture changing section according to embodiment 1)

As shown in fig. 10, the distribution transmission unit 72 is disposed at a position between the conveyance terminal 11b and the posture changing unit 62 of the 1 st conveyance body 11, and the distribution transmission unit 72 includes the drive box 51, the bevel gear 52a of the drive shaft 52, and the bevel gear 53a of the drive shaft 53.

The crop plant control device is provided with a transmission unit 73 for transmitting power from a left outer position to a distribution transmission unit 72 with respect to a portion where the crop plant A is held by the 1 st carrier 11, and the transmission unit 73 is provided with a transmission shaft 53, a pulley 53b of the transmission shaft 53, and a transmission belt 54.

The lower drive shaft that transmits the power transmitted to the distribution transmission unit 72 to the 1 st left carrier 11 positioned below the distribution transmission unit 72 is the drive shaft 52. An upper drive shaft that transmits the power transmitted to the distribution drive portion 72 to the posture changing portion 62 located on the upper side of the distribution drive portion 72 is the drive shaft 66.

The transmission portion 74 is disposed at a position above the conveyance terminal 11b of the right 1 st conveyance body 11, and the transmission portion 74 includes the drive box 50, the bevel gear 52a of the drive shaft 52, and the bevel gear 53a of the drive shaft 53.

The crop plant control device is provided with a transmission unit 75 for transmitting power from a right outer position to the transmission unit 74 with respect to a portion where the crop plant A is held by the 1 st carrier 11, and the transmission unit 75 is provided with a transmission shaft 53, a pulley 53b of the transmission shaft 53, and a transmission belt 54.

The lower drive shaft that transmits the power transmitted to the transmission portion 74 to the right 1 st conveyance body 11 located below the transmission portion 74 is the drive shaft 52.

(Structure of trunk support portion of embodiment 1)

As shown in fig. 8, 11, and 13, a flat-plate-shaped trunk support portion 76 is disposed at a position on the side (left side) farther from the separating portion 5in a plan view than the conveyance starting end portion 12a of the 2 nd conveyance body 12, and guides the trunk A1 of the crop a from the lower side to the rear side. The trunk support 76 extends obliquely downward and forward from the rear portion (portion of the turning wheel 56) of the conveyance starting end 12a of the 2 nd conveyance body 12 along the conveyance starting end 12a of the 2 nd conveyance body 12.

(Structure of stem guide portion of embodiment 1)

As shown in fig. 8, 11, 12, and 13, a stem guide 77 is disposed along a side surface 12a2 of the 2 nd carrier 12 on a side (left side) distant from the separating portion 5 at the conveyance starting end 12a of the 2 nd carrier 12, and the stem guide 77 prevents the stem A1 of the crop a from moving away from the conveyance starting end 12a of the 2 nd carrier 12.

The stem guide 77 is formed in a round bar shape. The rear end of the trunk guide 77 is disposed near the conveyance start end 13a of the guide rail 13, and the trunk guide 77 extends forward along the conveyance start end 12a of the 2 nd conveyance body 12. The stem guide 77 extends from the front portion (portion of the rotating wheel 55) of the conveyance starting end 12a of the 2 nd conveyance body 12 to the side (left side) away from the conveyance starting end 12a of the 2 nd conveyance body 12.

A support shaft 77a directed in the left-right direction is connected to the distal end portion of the stem guide 77. In the support portion 78 attached to the machine body 1, a support shaft 77a of the stem guide portion 77 is slidably supported in the left-right direction, and a spring 79 that biases the front end portion of the stem guide portion 77 toward the conveyance starting end portion 12a side (right side) of the 2 nd conveyance body 12 is attached to the support shaft 77a of the stem guide portion 77.

A support shaft 77b oriented in the up-down direction is connected to the rear end portion of the stem guide 77. At the front portion of the support frame 58, a support shaft 77b of the stem guide 77 is slidably supported in the up-down direction, and a spring 80 that biases the rear end portion of the stem guide 77 toward the conveyance starting end portion 12a (lower side) of the 2 nd conveyance body 12 is attached to the support shaft 77b of the stem guide 77.

(Structure of stem guide portion of embodiment 1)

As shown in fig. 4, 8, 11, 12, and 13, a stem guide 81 for guiding the stem of the crop a toward the conveyance starting end 12a side (right side) of the 2 nd conveyance body 12 is provided at a position between the conveyance terminal end 11b of the 1 st conveyance body 11 and the posture changing section 62 in a side view.

The stem guide 81 is formed in a circular rod shape, and the stem guide 81 is disposed along an upper portion of the conveying terminal 11b of the left 1 st conveying body 11 and attached to the harvesting portion 3.

The front portion 81a of the stem guide 81 is located on the front side of the front portion (portion of the rotation wheel 55) of the conveyance starting end 12a of the 2 nd conveyance body 12, and protrudes to a side (left side) away from the conveyance terminal end 11b of the left 1 st conveyance body 11 in a plan view.

The rear portion 81b of the stem guide 81 is located in the vicinity of the upper side of the rear portion (portion of the rotating wheel 56) of the conveyance starting end portion 12a of the 2 nd conveyance body 12, and protrudes toward the conveyance starting end portion 12a side (right side) of the 2 nd conveyance body 12 in a plan view.

(Structure of upper guide portion of embodiment 1)

As shown in fig. 1, 2, 8, and 9, an upper guide 82 for guiding the upper part of the crop a toward the conveyance starting end 12a side of the 2 nd conveyance body 12 is provided at a position above the posture changing section 62 in a side view.

The upper guide 82 is formed in a flat plate shape, and is attached to the upper guide 63 along the guide 63a of the upper guide 63 in the posture changing section 62. The upper guide 82 is set in an inclined posture so as to be oriented toward the transfer terminal portion 11b (right side) of the right 1 st transfer body 11 in a plan view as it goes upward from the portion attached to the upper guide 63.

(Structure of rear guide portion and dust cover of embodiment 1)

As shown in fig. 1, 8, and 11, a rear guide 83 is connected to the front end of the support frame 58. The rear guide 83 is formed in a flat plate shape, and is set in an inclined posture so as to face the conveyance terminal end 11b side (left side) of the 1 st conveyance body 11 in plan view.

As shown in fig. 1,2, 8, and 11, the dust cover 84 is attached to the body 1 so as to be positioned on the right side of the posture changing section 62. The dust cover 84 is formed in a box shape from a plate material, and the opening 84a is opened in the left portion (the portion on the posture changing portion 62 side) of the dust cover 84.

(The state of crop in the section from the transport terminal end of the 1 st transport body to the transport start end of the 2 nd transport body according to embodiment 1)

At the transfer section from the transfer terminal end 11b of the 1 st transfer body 11 to the transfer start end 12a of the 2 nd transfer body 12, the posture of the crop a in the standing posture is changed to the horizontal posture, and the stem A1 of the crop a in which the posture is changed to the horizontal posture from the transfer terminal end 11b of the 1 st transfer body 11 is sandwiched between the 2 nd transfer body 12 and the guide rail 13.

The flow direction of the crop a in the aforementioned state is as follows.

As shown in fig. 1, 2, and 4, in the harvesting unit 3, a divider 48 contacts the field, and when the machine body 1 is advanced with a pair of mechanical shovels 49 entering the field, the field is divided by the divider 48, and the field is opened by the pair of mechanical shovels 49, and the crop a in the standing posture of the field enters the conveyance starting end 11a of the left and right 1 st conveyance body 11.

The crop a in the standing posture of the field is gripped from the left and right sides by the left and right 1 st conveying bodies 11, pulled out and lifted by the left and right 1 st conveying bodies 11, and conveyed obliquely upward along the harvesting section 3 while maintaining the standing posture.

As shown in fig. 8, 9, 11, and 12, when the standing crop a reaches the conveyance terminal 11b of the 1 st conveyance body 11, the stem A1 of the crop a is caught by the stem support 76 from below, and the left part of the stem A1 of the crop a contacts the stem guide 77, and the stem A1 of the crop a is guided to the conveyance terminal 12a of the 2 nd conveyance body 12.

Next, with the crop a sandwiched between the left and right 1 st conveyance bodies 11, the stem A1 of the crop a is sandwiched between the conveyance starting end 12a of the 2 nd conveyance body 12 and the stem guide 77, and in a state of being in contact with the conveyance starting end 12a of the 2 nd conveyance body 12, the stem A1 of the crop a is caught by the stem support 76 from the lower side.

The stem portion of the crop a is brought into contact with the stem guide 81 and guided to the conveyance starting end portion 12a side (right side) of the 2 nd conveyance body 12 in a state where the crop a is sandwiched by the left and right 1 st conveyance bodies 11.

By the rotation of the claw bodies 65 (annular rotary bodies 64) of the posture changing section 62, the upper portion of the crop a enters between the claw bodies 65, and the upper guide 82 comes into contact with the upper portion of the crop a.

Thus, the crop a is conveyed to the rear side (the 2 nd conveying body 12 side) by the left and right 1 st conveying bodies 11, and the stem A1 of the crop a is slightly tilted in a state in which the stem A1 of the crop a is conveyed by the conveyance starting end portion 12a of the 2 nd conveying body 12.

The claw body 65 (the annular rotating body 64) of the posture changing section 62 is rotationally driven, and thereby the upper portion of the crop a is pushed from the conveyance terminal end portion 11b of the 1 st conveyance body 11 to the conveyance start end portion 12a of the 2 nd conveyance body 12 by the claw body 65 along the guide portion 63a of the guide portion 63.

The guide portion 63a and the claw body 65 of the guide portion 63 change the posture of the crop a from the conveyance terminal portion 11b of the 1 st conveyance body 11 to a horizontal posture in which the portion of the crop a with the fruit A2 is on the side (right side) closer to the separation portion 5 than the stem A1 of the crop a. The upper guide 82 assists the posture change of the crop a in the horizontal posture.

Next, as shown in fig. 8, 9, and 13, when the crop leaves the transport terminal portion 11b of the 1 st transport body 11 rearward, the posture of the crop a is changed to the horizontal posture by the posture changing portion 62.

The stem A1 of the crop a, which is changed from the posture of the conveyance terminal 11b of the 1 st conveyance body 11 to the horizontal posture, is sandwiched between the conveyance starting end 12a of the 2 nd conveyance body 12 and the stem guide 77, and is mounted on the conveyance starting end 12a of the 2 nd conveyance body 12.

At the same time, the upper part of the crop a is poured into the opening 84a of the dust cover 84, and the upper part of the crop a is guided by the rear guide 83 to the opening 84a of the dust cover 84.

Next, the stem A1 of the crop a in the horizontal posture is guided between the 2 nd conveying body 12 and the conveying start end portion 13a of the guide rail 13 by the guide member 61, sandwiched between the 2 nd conveying body 12 and the guide rail 13, and the crop a is conveyed to the rear side in the horizontal posture by the 2 nd conveying body 12 and the guide rail 13.

(Other modes of embodiment 1)

In the posture changing section 62, the annular rotor 64 and the claw body 65 may be omitted, and the posture changing section 62 may be constituted by the guide section 63.

The posture changing section 62 may be disposed between the conveyance terminal section 11b of the 1 st conveyance body 11 and the conveyance start section 12a of the 2 nd conveyance body 12 in a side view.

The harvesting unit 3 (1 st carrier 11), the 2 nd carrier 12, and the guide rail 13 may be provided on the right part of the front part of the machine body 1. According to this configuration, the separating unit 5 is provided on the left side of the 2 nd carrier 12 and the guide rail 13.

[ Embodiment 2]

An embodiment (embodiment 2) which is an example of the present invention will be described below with reference to the drawings.

Fig. 15 to 27 show green soybean harvesters as an example of the crop harvesters.

In fig. 15 to 27, F represents a "front direction" of the body 1, B represents a "rear direction" of the body 1, U represents an "upper direction" of the body 1, and D represents a "lower direction" of the body 1. R represents the "right direction" of the machine body 1, and L represents the "left direction" of the machine body 1.

(Overall structure of Green soy bean harvester of embodiment 2)

As shown in fig. 15 and 16, the machine body 101 is supported by a left-right crawler-type traveling device 102, a harvesting unit 103 is provided at the left part of the front part of the machine body 101, and a driving unit 104 is provided at the right part of the front part of the machine body 101. A separating section 105 is provided at the rear of the machine body 101, and a support table 106 and a working deck (deck) 107 are provided at the right of the machine body 101.

(Outline of harvesting procedure of Green soy bean harvester of embodiment 2)

As shown in fig. 15 and 16, the harvesting unit 103 includes a1 st left and right conveying body 111 that is driven to rotate around axes P '1 and P' 2 in the vertical direction.

As the machine body 101 advances, the crop a in the standing posture of the field is gripped from the left and right sides by the 1 st and 1 st conveying bodies 111 at the harvesting section 103, pulled out and lifted by the 1 st and 1 st conveying bodies 111, and conveyed obliquely upward along the harvesting section 103 while maintaining the standing posture.

On the left side of the separating section 105, the 2 nd conveyance body 112 rotationally driven about the axis in the left-right direction is extended rearward from the conveyance terminal end 11b of the 1 st conveyance body 111, and the guide rail 113 is disposed along the 2 nd conveyance body 112.

When the crop a reaches the conveyance end portion 111b of the 1 st conveyance body 111, the posture of the crop a in the standing posture is changed to the horizontal posture on the separation portion 105 side at the transfer portion from the conveyance end portion 111b of the 1 st conveyance body 111 to the conveyance start portion 112a of the 2 nd conveyance body 112, and is transferred to the conveyance start portion 112a of the 2 nd conveyance body 112. The stem A1 of the crop a in the horizontal posture is sandwiched (held) between the 2 nd conveying body 112 and the guide rail 113, and the crop a is conveyed rearward by the 2 nd conveying body 112.

As shown in fig. 15, 16, and 17, the separating section 105 includes two upper and lower sets of rotating bodies 108 and 109 that are driven to rotate about axes in the left-right direction, a collection conveyor 110 that is disposed in the front-rear direction below the rotating bodies 108 and 109, a conveying conveyor 114 that is disposed in the left-right direction below the rear portion of the collection conveyor 110, a discharge conveyor 115 that is disposed at a predetermined interval from the rear portion of the collection conveyor 110 to the rear side, and a fan 116 that is disposed below the collection conveyor 110.

When the crop a in the horizontal posture is conveyed to the rear side by the 2 nd conveying body 112, the crop a passes between the upper and lower rotating bodies 108, the fruit A2 is separated from the crop a by the rotation of the rotating bodies 108, and the separated fruit A2 falls down to the collecting conveyor 110.

The crop a then passes between the upper and lower rotating bodies 109, and the fruit A2 is separated from the crop a by the rotation of the rotating bodies 109, and the separated fruit A2 falls down to the recovery conveyor 110. The crop a from which the fruit A2 is separated is discharged to the field from the conveyance terminal 112b of the 2 nd conveyance body 112. When the fruits A2 are separated from the crop a by the rotating bodies 108 and 109, the crushed slag such as leaves also falls down together to the recovery conveyor 110.

The recovery conveyor 110 is rotationally driven to the rear side, and the fruit A2 and the scraps falling down to the recovery conveyor 110 are conveyed to the rear side by the recovery conveyor 110, and fall from the rear side of the recovery conveyor 110 to the conveying conveyor 114.

The carrying air of the fan 116 flows from the lower side to the rear side of the collection conveyor 110, passes between the collection conveyor 110 and the discharge conveyor 115, and flows from the upper side to the rear side of the discharge conveyor 115.

When the fruit A2 and the scraps fall from the rear of the collection conveyor 110, the fruit A2 falls to the conveying conveyor 114 against the conveying wind of the fan 116. The slag is carried on the discharge conveyor 115 by the carrying wind of the fan 116, and the slag carried on the discharge conveyor 115 is carried to the rear side by the discharge conveyor 115 and discharged to the field.

The transport conveyor 114 is driven to rotate toward the support table 106, and a plurality of recovery boxes 117 are mounted on the support table 106. The fruit A2 dropped onto the conveying conveyor 114 is conveyed toward the support table 106 by the conveying conveyor 114, and is put into a collection box 117 located at the conveying terminal end of the conveying conveyor 114. The auxiliary operator of the working deck 107 changes the empty recovery tank 117 when the recovery tank 117 located at the conveyance terminal end of the conveyance conveyor 114 is full.

(Mode of field harvesting operation of embodiment 2)

As shown in fig. 26 and 27, the crop a is planted in a plurality of rows L1 to L5 in the field.

In the above state, the machine body 101 is advanced along the row L1 of the crop a at the end of the rows L1 to L5 of the crop a, and the crop a of the row L1 is harvested by the harvesting unit 103 (see the position K1). In this case, the right side of the body 101 is a region where harvesting of the crop a ends (a region where the crop a does not exist), and the left side of the body 101 is a region where the crop a before harvesting exists.

When the machine body 101 ends the harvest of the crop a in the row L1 to the reaching position K2, the harvester 103 is lifted up to perform the turning travel M1, and the machine body 101 is positioned at the position K3 of the row L2 of the crop a on the opposite side. The harvesting unit 103 is lowered at the position K3, the machine body 101 is advanced along the row L2 of the crop a, and the crop a in the row L2 is harvested by the harvesting unit 103.

In this case, as well, the right side of the body 101 is a region where harvesting of the crop a ends (a region where the crop a does not exist), and the left side of the body 101 is a region where the crop a exists before harvesting.

When the machine body 101 ends harvesting the crop a in the row L2 and reaches the position K4, the harvesting unit 103 is lifted up to perform the turning travel M2, and the machine body 101 is positioned at the position K5 of the row L3 of the crop a on the opposite side. The harvesting unit 103 is lowered at the position K5, the machine body 101 is advanced along the row L3 of the crop a, and the crop a in the row L3 is harvested by the harvesting unit 103.

As described above, the crop a in the row L3 is harvested, the crop a in the row L4 is harvested by the turning travel M1, and the crop a in the row L5 is harvested by the turning travel M2, and the crop a in the turning travel M1, M2, L1 to L5 is repeatedly harvested, whereby the crop a in the field is harvested.

(Structure of harvesting portion of embodiment 2)

As shown in fig. 18, 19, and 21, a right-left linear support frame 143 is provided at the harvesting unit 103. The left and right frames 128, 129 are connected downward at the left and right support frames 143, and the support frames 130, 144 are connected in the left and right direction over the lower portions of the left and right frames 128, 129.

The left and right support frames 131 are connected downward at the lower portions of the rear portions of the left and right support frames 143, and the support frames 133 are connected in the left and right directions over the lower portions of the left and right support frames 131. The left and right support frames 134 are connected along the support frame 143 so as to extend over the right and left portions of the support frame 130 and the right and left portions of the support frame 133. The skeleton of the harvesting unit 103 is constructed as described above.

The left and right driven wheels 145 are rotatably supported around an axis P' 1 extending in the oblique vertical direction at the front portions of the left and right support frames 143. At the rear portions of the left and right support frames 143, left and right drive wheels 146 are rotatably supported around an axis P' 2 in the obliquely upward and downward direction. In this case, the axes P '-1 and P' -2 are parallel to each other.

A right 1 st conveying body 111 made of rubber tape is attached to the right driven wheel 145 and the right driving wheel 146. A rubber belt-made left 1 st conveyance body 111 is attached to the left driven wheel 145 and the left driving wheel 146. The 1 st and second transport bodies 111 are fitted over the entire length of the support frame 143.

The plurality of rollers 147 are rotatably supported by the support frame 143, and the rollers 147 support the opposite side of the engaging portion (the nip portion of the crop a) of the 1 st conveyance body 111. A left and right divider 148 and a core shovel 149 are attached to the front portions of the left and right support frames 143.

The left and right support frames 143 are maintained at equal intervals in the left-right direction, and the support frames 143 are supported in the front-rear direction on the left portion of the front portion of the body 101 in a posture inclined in a side view so that the front portion of the support frame 143 is on the lower side and the rear portion of the support frame 143 is on the upper side.

In the 1 st conveyance body 111, the vicinity of the driven wheel 145 is the conveyance start end portion 111a, and the vicinity of the driving wheel 146 is the conveyance end portion 111b. Thus, the 1 st and the 1 st conveying body 111 extend straight from the conveying start end 111a to the conveying end 111b of the 1 st conveying body 111, without twisting, to the obliquely upper rear side.

(Lifting Structure of harvesting portion of embodiment 2)

As shown in fig. 17, 21, 22, and 24, four struts 135 are connected to the left part of the front part of the body 101. A left and right support frame 136 in the front-rear direction is connected to the upper portion of the stay 135, and a left and right support frame 137 in the left-right direction is connected to the lower portion of the stay 135.

The left and right support frames 136 are coupled to tubular left and right swing support portions 138. The left-right swing support portion 138 is disposed along the support axis P' 11 in the left-right direction and is disposed at a distance from each other.

As shown in fig. 18 and 19, a right rear portion of the harvesting unit 103, that is, a support plate 139 is connected to a rear portion of the right support frame 143, and a box-shaped right swing fulcrum portion 150 of the cast product is connected to extend upward above the support plate 139.

A support plate 140, which is the left rear part of the harvesting unit 103, is connected to the rear part of the left support frame 143, and a box-shaped left swing fulcrum 151 of the casting is connected to the upper part of the support plate 140 so as to protrude upward.

As shown in fig. 18 and 19, lateral flange portions 150a and 151a are provided in the left and right swing fulcrum portions 150 and 151, and as shown in fig. 17, 21 and 24, the flange portions 150a and 151a of the left and right swing fulcrum portions 150 and 151 are rotatably supported by the left and right swing support portion 138.

As a result, the harvesting unit 103 (the left-right swing supporting point portions 150 and 151) is supported by the left-right swing supporting portion 138 so as to be vertically swingable (vertically movable) about the support axial center P' 11 in the left-right direction which is upwardly separated from the rear portion (the transport terminal portion 111b of the 1 st transport body 111) of the harvesting unit 103.

A passage C through which the crop a passes is provided between the right swing fulcrum portion 150 and the right swing supporting portion 138, and between the left swing fulcrum portion 151 and the left swing supporting portion 138.

As shown in fig. 19 and 21, a bracket 130a is connected to the harvesting unit 103 at the left and right central portions of the support frame 130, and a hydraulic cylinder 141 (corresponding to a lifting mechanism) is connected to the front portion of the machine body 101 and the bracket 130a of the support frame 130.

As shown in fig. 20, when the hydraulic cylinder 141 is operated to extend, the harvesting unit 103 can be operated to raise, and as shown in fig. 19, when the hydraulic cylinder 141 is operated to retract, the harvesting unit 103 can be operated to lower.

(Structure of load supporting portion of embodiment 2)

As shown in fig. 19, 20, and 21, the load supporting portion 172 is connected to the harvesting portion 103 over a portion of the machine body 101 below the rear portion (swing fulcrum portions 150 and 151) of the harvesting portion 103. The load support portion 172 includes a 1 st support member 173 and a2 nd support member 174.

The 1 st support member 173 includes two sets of right and left sides, is supported so as to be swingable up and down around the axis P' 3 in the left-right direction of the front portion of the body 101, and extends forward. A frame 175 in the left-right direction is connected to a plurality of portions of the left-right 1 st support member 173.

The 2 nd support member 174 is a square flat plate in front view, and the lower portion of the 2 nd support member 174 is swingably supported around the left-right axis P' 4 of the front portion of the 1 st support member 173. The upper portion of the 2 nd support member 174 is swingably connected around the axis P' 5 in the left-right direction of the left-right frame 129 of the harvesting unit 103.

As described above (lifting structure of the harvesting unit), when the harvesting unit 103 is lifted and lowered, the load supporting unit 172, the 1 st supporting member 173, and the 2 nd supporting member 174 swing around the axes P ' 3, P ' 4, and P ' 5, thereby allowing the lifting and lowering operation of the harvesting unit 103.

When a load in the left-right direction is applied to the harvesting unit 103, the load applied to the harvesting unit 103 in the left-right direction is supported by the load support unit 172, and the load applied to the harvesting unit 103 in the left-right direction can avoid the state of being applied to the swing fulcrum portions 150 and 151 and the swing support unit 138 of the harvesting unit 103.

(Structure of drive train to harvesting portion of embodiment 2)

As shown in fig. 16 and 25, an engine 118 is supported at a lower portion of the cab 104. The power of the engine 118 is transmitted from the belt 127 to the drive mechanism 132 of the 2 nd carrier 112, the rotating bodies 108 and 109 of the separating unit 105, the recovery conveyor 110, the transport conveyor 114, the discharge conveyor 115, and the fan 116.

A transmission 119 is supported at the left and right centers of the front portion of the machine body 101, and a hydrostatic continuously variable transmission 120 is coupled to the transmission 119. The power of the engine 118 is transmitted to an input shaft of the continuously variable transmission 120 via a transmission belt 121, and the power of the continuously variable transmission 120 is transmitted to the traveling device 102 via a sub-transmission (not shown) or the like inside the transmission 119.

The power of the continuously variable transmission 120 is transmitted to the drive shaft 126 via the gear drive mechanism 122, the drive belt 123, the drive shaft 124, and the drive belt 125.

As shown in fig. 21, 22, and 24, the left and right support frames 142 are coupled in the front-rear direction at the lower portions of the struts 135, and the propeller shaft 126 is supported by the left and right support frames 142 in the left-right direction.

As shown in fig. 17, 24, and 25, the drive shaft 152 is supported by the swing fulcrum portions 150 and 151 along the axis P' 2, and the drive wheel 146 is coupled to the lower portion of the drive shaft 152. In the swing fulcrum portions 150 and 151, the transmission shaft 153 is supported laterally at a position supporting the shaft center P' 11, and the bevel gear 152a of the drive shaft 152 is engaged with the bevel gear 153a of the transmission shaft 153. A belt 154 is mounted over the pulley 126a of the drive shaft 126 and the pulley 153b of the drive shaft 153.

With the above configuration, the power of the transmission shaft 126 is transmitted to the drive shaft 152 via the transmission belt 154 and the transmission shaft 153, the right drive shaft 152 (right drive wheel 146) is rotationally driven, and the 1 st right carrier 111 is rotationally driven in the counterclockwise direction in fig. 16 and 17. The left drive shaft 152 (left drive wheel 146) is driven to rotate, and the left 1 st conveyance body 111 is driven to rotate in the clockwise direction in fig. 16 and 17.

(Structure of entry prevention Member of embodiment 2)

As shown in fig. 15, 16, 19, and 21, the entry preventing member 178 is attached to the harvesting portion 103. The entry preventing member 178 is formed in a round bar shape, and includes a front-rear facing portion 178a and an up-down facing portion 178b.

The front portion of the front-rear facing portion 178a of the entry prevention member 178 is attached to the left frame 128 that is the front portion of the harvesting unit 103, and the front-rear facing portion 178a of the entry prevention member 178 is disposed in the front-rear direction over the left portion of the front portion of the harvesting unit 103 and in the vicinity of the front portion of the left traveling device 102 that is the harvesting unit 103 side.

The vertically oriented portion 178b of the entry preventing member 178 extends upward from the rear of the front and rear oriented portion 178a of the entry preventing member 178, and the upper portion of the vertically oriented portion 178b of the entry preventing member 178 is attached to the rear of the harvesting portion 103, i.e., the left portion of the support frame 133.

The entry preventing member 178 (the front-rear facing portion 178a and the up-down facing portion 178 b) is located outside (left side) the load supporting portion 172 (the 1 st supporting member 173 and the 2 nd supporting member 174) in a plan view, and is in a state of intersecting the load supporting portion 172 (the 1 st supporting member 173 and the 2 nd supporting member 174) in a side view.

(Structure of contact prevention Member of embodiment 2)

As shown in fig. 15, 16, 19, and 21, contact preventing members 179 and 180 are attached to the front and rear portions of the left lateral portion of the machine body 101 (portions corresponding to the upper sides of the travel devices 102 on the harvesting portion 103 side of the machine body 101).

The front contact preventing member 179 is formed in a round bar shape, and a front portion of the front contact preventing member 179 is coupled to a front portion of the left lateral portion of the body 101. The front portion of the front contact preventing member 179 is located inward (rightward) of the upper and lower facing portions 178b of the entry preventing member 178, and the front contact preventing member 179 is projected to the rear side diagonally to the left and right. The rear portion of the front contact preventing member 179 is located outside (to the left of) the vertically oriented portion 178b of the entry preventing member 178 in plan view.

The rear contact preventing member 180 is formed in a rectangular frame shape in a plan view, and is coupled to the rear portion of the left lateral portion of the body 101, so that an operator sits on the rear contact preventing member 180 in a standing manner.

The rear contact preventing member 180 protrudes outward (leftward) from the upper and lower facing portions 178b of the entry preventing member 178 in a plan view, and the rear portion of the front contact preventing member 179 is connected to the front portion of the rear contact preventing member 180.

(Function of the entry prevention Member and contact prevention Member of embodiment 2)

As shown in fig. 26 and 27, when the machine body 1 is advanced along the rows L1 to L5 of the crops a and the crops a in the rows L1 to L5 are harvested by the harvesting unit 103, the right side of the machine body 101 is a region where the harvesting of the crops a is finished (a region where the crops a do not exist), and the left side of the machine body 101 is a region where the crops a before the harvesting exist.

Taking the row L1 of the crop a as an example, as shown in fig. 27, the left traveling device 102 is located on the rear side of the front part of the harvesting unit 103 in a plan view, and is located on the left side with respect to the row L1 of the crop a harvested by the harvesting unit 103, and the row L3 of the crop a before harvesting is located adjacently, and the left traveling device 102 is in a state of traveling along the row L3 of the crop a before harvesting in the vicinity of the row L3 of the crop a before harvesting.

As shown in fig. 15 and 19, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, the harvesting unit 103 is supported by the left portion of the machine body 101 in the front-rear direction so that the front portion of the harvesting unit 103 is positioned at the front side of the left traveling device 102 in a side view and positioned in the vicinity of the field, and the rear portion of the harvesting unit 103 is positioned at the upper side of the left traveling device 102 in a side view.

In the above state, even if the crop a before harvesting (column L3) is to enter the area on the front side of the left traveling device 102 (the area between the front of the harvesting section 103 and the front of the left traveling device 102), the crop a before harvesting (column L3) is prevented by the entry preventing member 178 (front-rear facing section 178 a), and entry of the crop a before harvesting (column L3) into the area on the front side of the left traveling device 102 is prevented.

Next, when the crop a (row L3) before harvesting passes through the area on the front side of the left traveling device 102, it reaches the lateral side of the left traveling device 102. Even if the pre-harvest crop a (row L3) is to be brought into contact with the left traveling device 102, the pre-harvest crop a (row L3) is prevented by the front-rear contact preventing members 179, 180, and contact of the pre-harvest crop a (row L3) with the left traveling device 102 is prevented.

(Structure of the 2 nd carrier of embodiment 2)

As shown in fig. 15, 16, and 17, a drive mechanism 132 is supported on the left part of the body 101, and the drive mechanism 132 includes a drive sprocket 132a that is rotationally driven about the axis in the left-right direction. The rotation wheels 155 and 156 are rotatably supported around the axis in the left-right direction at the front part of the left part of the body 101, and the rotation wheel 157 is rotatably supported around the axis in the left-right direction at the rear part of the left part of the body 101.

The 2 nd carrier 112 is attached to the drive sprocket 132a of the drive mechanism 132 and the rotation wheels 155, 156, 157. The 2 nd carrier 112 is a metal chain, and has a triangular convex portion in side view to the outside. The 2 nd carrier 112 is rotationally driven in the clockwise direction in fig. 15 by the drive sprocket 132a of the drive mechanism 132.

The 2 nd carrier 112 extends rearward from the carrier terminal 111b of the 1 st carrier 111, is disposed in the front-rear direction at the left portion of the machine body 101, and is disposed with the separating portion 105 at the right side of the 2 nd carrier 112. In the 2 nd conveyance body 112, a portion between the rotation wheel 155 and the rotation wheel 156 is a conveyance start end portion 112a, and a vicinity of the rotation wheel 157 is a conveyance end portion 112b.

As shown in fig. 15 and 22, the front portion (portion of the rotating wheel 155) of the conveyance starting end 112a of the 2 nd conveyance body 112 is disposed below the rear portion (portion of the rotating wheel 156) of the conveyance starting end 112a of the 2 nd conveyance body 112, and the conveyance starting end 112a of the 2 nd conveyance body 112 is disposed in an inclined posture obliquely upward along the conveyance terminal end 111b of the 1 st conveyance body 111.

The portion extending from the rear portion (portion of the rotating wheel 156) of the conveyance starting end 112a of the 2 nd conveyance body 112 to the conveyance terminal end 112b is arranged in a substantially horizontal posture in side view.

(Structure of guide Rail of embodiment 2)

As shown in fig. 15 and 22, a support frame 158 is supported in the front-rear direction on the upper portion of the left part of the body 101, and a plurality of support rods 159 are supported by the support frame 158 so as to be movable up and down.

The guide rail 113 is formed by arranging short channel-like members in a row with their open sides facing downward in the front-rear direction, and adjacent front-rear channel-like members are connected to each other by pins so as to be bent in the up-down direction.

The guide rail 113 extends rearward along the upper side of the 2 nd carrier 112. The pin connecting the channel-like members of the guide rail 113 is supported at the lower portion of the support rod 159, and the guide rail 113 (channel-like member) is supported so as to be movable up and down. The guide rail 113 is pressed against the 2 nd carrier 112 by a spring 160 that biases the support rod 159 downward.

In the guide rail 113, the channel-like member of the head of the 2 nd conveyance body 112 on the conveyance start end 112a side is the conveyance start end 113a. The conveyance start end 113a of the guide rail 113 is located slightly behind the conveyance start end 112a of the 2 nd conveyance body 112 (the portion of the rotation wheel 156).

According to the above configuration, as described later (the state of the crop at the transfer start portion of the 2 nd transfer portion from the transfer end portion of the 1 st transfer body), when the stem A1 of the crop a is clamped between the 2 nd transfer body 112 and the guide rail 113, the guide rail 113 is bent by the stem A1 of the crop a and lifted upward, and the stem A1 of the crop a is clamped between the 2 nd transfer body 112 and the guide rail 113 by a sufficient clamping force by the biasing force of the spring 160.

The guide member 161 composed of round bars is attached to the conveyance start end portion 113a of the guide rail 113. The guide member 161 is protruded forward along the 2 nd conveyance body 112, obliquely protruded forward from a rear portion (a portion of the rotation wheel 156) of the conveyance start end portion 112a of the 2 nd conveyance body 112 in a side view. The guide member 161 is attached to the conveyance starting end portion 113a of the guide rail 113, whereby the guide member 161 moves up and down integrally with the conveyance starting end portion 113a of the guide rail 113.

(Positional relationship between the 1 st conveying body, the 2 nd conveying body, and the guide rail according to embodiment 2)

As shown in fig. 15, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, the harvesting unit 103 is arranged in a tilted posture in which the front portion (the conveyance starting end portion 111a of the 1 st conveyance body 111) is lower and the rear portion (the conveyance terminating end portion 111b of the 1 st conveyance body 111) is higher in a side view.

In this state, as shown in fig. 22 and 23, the conveyance end portion 111b of the 1 st conveyance body 111 and the conveyance start portion 112a of the 2 nd conveyance body 112 are disposed so as to overlap each other in a plan view, and the conveyance start portion 112a of the 2 nd conveyance body 112 is disposed at a position below the conveyance end portion 111b of the 1 st conveyance body 111 in a side view.

The 2 nd carrier 112 is disposed so that the left and right central portions 112c of the 2 nd carrier 112 (the conveyance starting end portions 112 a) are displaced to a position closer to the separating portion 105 (to the right) in a plan view with respect to the virtual line B11 extending in the conveyance direction of the 1 st carrier 111 from the portions of the 1 st carrier 111 that are in contact with each other.

As shown in fig. 12 and 14, a side surface 13a1 of the guide rail 13 on the side closer to the separating portion 5 (right side) is arranged between a side surface 12a1 of the 2 nd carrier 12 on the side closer to the separating portion 5 (right side) and a side surface 12a2 on the side farther from the separating portion 5 (left side) in plan view.

The rear portion (portion of the rotating wheel 156) of the conveyance starting end 112a of the 2 nd conveyance body 112 is disposed at a position on the rear side of the conveyance terminal end 111b of the 1 st conveyance body 111 in side view. The guide member 161 and the conveyance starting end 113a of the guide rail 113 are disposed at positions on the rear side of the conveyance terminal end 111b of the 1 st conveyance body 111 in a side view.

The conveyance terminal 111b of the 1 st conveyance body 111 is located between the front end of the guide member 161 and the conveyance start end 112a of the 2 nd conveyance body 112 in a side view, and the front end of the guide member 161 is disposed at a position above the conveyance terminal 111b of the 1 st conveyance body 11 in a side view.

As described above, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, the positional relationship between the conveyance terminal portion 111b of the 1 st conveyance body 111 and the conveyance start end portion 112a of the 2 nd conveyance body 112 is appropriately set.

In the above state, when the harvesting unit 103 is lifted, the harvesting unit 103 swings upward about the support axis P' 11 that is separated from the rear portion of the harvesting unit 103 to the upper side, and thus the rear portion (the conveyance terminal portion of the 1 st conveyance body) of the harvesting unit 103 is separated from the conveyance start end portion 112a of the 2 nd conveyance body 112 to the front side.

When the harvesting unit 103 is lowered, the harvesting unit 103 swings downward about the support axis P' 11 which is spaced upward from the rear portion of the harvesting unit 103, the rear portion of the harvesting unit 103 (the conveyance terminal portion 111b of the 1 st conveyance body 111) moves rearward to approach the conveyance start portion 112a of the 2 nd conveyance body 112, and the conveyance terminal portion 111b of the 1 st conveyance body 111 and the conveyance start portion 112a of the 2 nd conveyance body 112 return to the proper positional relationship shown in fig. 22.

(Structure of posture changing section of embodiment 2)

As shown in fig. 15 and 16, a posture changing section 162 is connected to an upper portion of the conveyance terminal section 111b (swing fulcrum section 151) of the 1 st conveyance body 111.

As shown in fig. 22 and 23, the posture changing section 162 includes a guide section 163, an annular rotor 164, and a claw 165.

The guide portion 163 includes two sets of upper and lower portions, and is disposed obliquely from the conveyance terminal portion 111b (swing fulcrum portion 151) of the 1 st conveyance body 111 toward the conveyance start portion 112a of the 2 nd conveyance body 112, on the side closer to the diagonal separation portion 105 (right side) in a plan view. At the guide portion 163, a side portion on the side closer to the separation portion 105 (right side) is a guide portion 163a.

As shown in fig. 23, 24, and 25, a drive shaft 166 is rotatably supported at the axial center P' 2 of the guide portion 163, the drive shaft 152 is extended upward at the swing fulcrum 151, and the drive shaft 152 and the drive shaft 166 are coupled via a coupling member 167.

Between the upper and lower guide portions 163, a drive sprocket 168 is rotatably supported, and a drive chain 169 is attached to the drive sprocket 166a and the drive sprocket 168 throughout the drive shaft 166.

The driven sprocket 170 is rotatably supported between the upper and lower guide portions 163, and the driven sprocket 171 is relatively rotatably fitted to the drive shaft 166. Between the upper and lower guide portions 163, a chain-like annular rotor 164 is mounted over the driving sprocket 168 and the driven sprockets 170, 171.

Thus, the power of the drive shaft 152 is transmitted to the drive sprocket 168 via the drive shaft 166 and the drive chain 169, the drive sprocket 168 is rotationally driven, and the endless rotating body 164 is rotationally driven in the clockwise direction in fig. 23.

The claw body 165 is attached to the annular rotary body 164 at a predetermined interval in the moving direction of the annular rotary body 164. The claw body 165 is attached to the annular rotating body 164 so that the posture thereof can be freely changed to an operating posture protruding outward from the annular rotating body 164 and a non-operating posture thereof falling down along the annular rotating body 164.

When the pawl 165 is rotationally driven in the clockwise direction in fig. 23 integrally with the annular rotor 164, if the pawl 165 reaches the drive sprocket 168, the pawl 165 is operated to a non-acting posture, and the driven sprocket 170 is operated from a slightly vicinity position to an acting posture from the drive sprocket 168.

When the claw body 165 slightly operates the driven sprocket 170 to the active posture, it moves from the driven sprocket 171 to the driving sprocket 168 while maintaining the active posture, and when reaching the driving sprocket 168, it is operated to the inactive posture.

(Positional relationship between the posture changing section of embodiment 2 and the 1 st conveying body and the 2 nd conveying body and the guide rail)

As shown in fig. 15, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, as shown in fig. 22 and 23, the posture changing unit 162 is disposed so as to extend over the upper side of the conveyance terminal portion 111b (swing fulcrum portion 151) of the 1 st conveyance body 111 and to be separated from the conveyance terminal portion 111b (swing fulcrum portion 151) of the 1 st conveyance body 111 in a side view.

In this state, the posture changing section 162 is disposed obliquely upward from the upper side position of the conveyance terminal section 111b (swing fulcrum section 151) of the 1 st conveyance body 111 in a side view, and overlaps the conveyance starting section 112a and the guide rail 113 (support frame 158) of the 2 nd conveyance body 112 in a top view.

In the posture changing section 162, the guide section 163a of the guide section 163 is disposed obliquely from the conveyance terminal section 111b (swing fulcrum section 151) of the 1 st conveyance body 111 to the conveyance start section 112a of the 2 nd conveyance body 112 on the side (right side) closer to the separation section 105 in a plan view.

At the posture changing section 162, the annular rotor 164 is driven to rotate about the axis in the up-down direction, and is moved from the conveyance terminal section 111b (swing fulcrum section 151) of the 1 st conveyance body 111 to the conveyance start section 112a of the 2 nd conveyance body 112 along the guide section 163a of the guide section 163 to the position of the drive sprocket 168.

As described above, in a state where the harvesting unit 103 is lowered to a position where the front portion of the harvesting unit 103 contacts the field, the positional relationship between the posture changing unit 162 and the conveyance starting end portion 112a of the 2 nd conveyance body 112 and the guide rail 113 (support frame 158) is appropriately set.

In the above state, when the harvesting unit 103 is lifted, the harvesting unit 103 swings upward about the support axis P' 11 that is separated from the rear portion of the harvesting unit 103 upward, and thereby the posture changing unit 162 moves downward obliquely rearward and is positioned above the support frame 158 along the support frame 158.

When the harvesting unit 103 is lowered, the harvesting unit 103 swings downward about the support axis P' 11 which is spaced upward from the rear of the harvesting unit 103, and the posture changing unit 162 moves upward obliquely toward the front, so that the posture changing unit 162 and the conveyance starting end 112a and the guide rail 113 (support frame 158) of the 2 nd conveyance body 112 return to the proper positional relationship shown in fig. 22.

(Construction of the stem support portion, stem guide portion, upper guide portion, rear guide portion, and dust cover of embodiment 2)

As shown in fig. 17 and 22, a flat-plate-shaped trunk support portion 176 for guiding the trunk A1 of the crop a rearward while being received from below is disposed at a position on the side (left side) farther from the separating portion 105 in a plan view with respect to the conveyance-start end portion 112a of the 2 nd conveyance body 112. The trunk support 176 extends from the rear portion (portion of the rotating wheel 156) of the conveyance starting end 112a of the 2 nd conveyance body 112 to the obliquely downward front side along the conveyance starting end 112a of the 2 nd conveyance body 112.

As shown in fig. 15 and 22, a rod-shaped stem guide 177 is disposed along a side surface of the 2 nd carrier 112 on a side (left side) of the 2 nd carrier 112 that is farther from the separating section 105 at a transport start end 112a of the 2 nd carrier 112. The stem guide 177 prevents the stem A1 of the crop a from moving away from the conveyance start end 112a of the 2 nd conveyance body 112.

As shown in fig. 22 and 23, a stem guide portion 181 having a circular rod shape is provided at a position between the conveyance terminal portion 111b and the posture changing portion 162 of the 1 st conveyance body 111 in a side view. The stem guide portion 181 guides the stem of the crop a toward the conveyance start end 112a side (right side) of the 2 nd conveyance body 112.

A flat upper guide 182 for guiding the upper part of the crop a toward the conveyance starting end 112a of the 2 nd conveyance body 112 is provided at a position above the posture changing section 162 in side view.

A rear guide 183 is connected to the front end of the support frame 158. The rear guide portion 183 is formed in a flat plate shape, and is set in an inclined posture so as to face the conveying terminal portion 111b side (left side) of the 1 st conveying body 111 in a plan view.

The dust cover 184 is attached to the body 101 so as to be positioned on the right side of the posture changing section 162. The dust cover 184 is formed in a box shape from a plate material, and the opening 184a is opened in the left portion (the portion on the posture changing portion 162 side) of the dust cover 184.

(The state of crop in the section from the transport terminal end of the 1 st transport body to the transport start end of the 2 nd transport body according to embodiment 2)

At the transfer portion from the transfer end portion 111b of the 1 st transfer body 111 to the transfer start portion 112a of the 2 nd transfer body 112, the posture of the crop a in the standing posture is changed to the horizontal posture, and the stem A1 of the crop a in the posture changed to the horizontal posture from the transfer end portion 111b of the 1 st transfer body 111 is sandwiched between the 2 nd transfer body 112 and the guide rail 113.

The flow direction of the crop a in the aforementioned state is as follows.

As shown in fig. 15 and 16, in the harvesting unit 103, when the machine body 101 is advanced in a state where the divider 148 contacts the field and the core blade 149 enters the field, the crop a in the field is divided by the divider 148, the field is excavated by the core blade 149, and the crop a in the standing posture of the field enters the conveyance start end portion 111a of the left and right 1 st conveyance body 111.

The crop a in the standing posture of the field is gripped from the left and right sides by the left and right 1 st conveying bodies 111, pulled out and lifted by the left and right 1 st conveying bodies 111, and conveyed obliquely upward along the harvesting section 103 while being maintained in the standing posture.

As shown in fig. 17, 22, and 23, when the standing crop a reaches the conveyance end portion 111b of the 1 st conveyance body 111, the stem A1 of the crop a is caught by the stem support portion 176 from below, and the stem A1 of the crop a enters between the conveyance start end portion 112a of the 2 nd conveyance body 112 and the stem guide portion 177 and is guided to the conveyance start end portion 112a of the 2 nd conveyance body 112.

Next, in a state where the crop a is held by the 1 st conveying body 111, the stem A1 of the crop a is held between the conveying start end 112a of the 2 nd conveying body 112 and the stem guide 177, and in a state where the stem A1 of the crop a is in contact with the conveying start end 112a of the 2 nd conveying body 112, the stem support 176 is caught from the lower side.

The stem portion of the crop a is brought into contact with the stem guide portion 181 and guided to the conveyance starting end portion 112a side (right side) of the 2 nd conveyance body 112 in a state where the crop a is sandwiched by the 1 st and right conveyance bodies 111.

By the rotation of the claw bodies 165 (annular rotary bodies 164) of the posture changing section 162, the upper portion of the crop a enters between the claw bodies 165, and the upper guide 182 comes into contact with the upper portion of the crop a.

Thus, the crop a is conveyed to the rear side (the 2 nd conveying body 112 side) by the left and right 1 st conveying bodies 111, and the stem A1 of the crop a is slightly tilted in a state in which the stem A1 of the crop a is conveyed by the conveying start end 112a of the 2 nd conveying body 112.

At the conveyance terminal portion 111b of the 1 st conveyance body 111, the crop a passes through the right swing fulcrum portion 150 and the right swing supporting portion 138, and the passage C between the left swing fulcrum portion 151 and the left swing supporting portion 138 (see fig. 21 and 24).

The claw body 165 (the annular rotor 164) of the posture changing section 162 is rotationally driven, and thereby the upper portion of the crop a is pushed from the conveyance terminal end 111b of the 1 st conveyance body 111 to the conveyance start end 112a of the 2 nd conveyance body 112 along the guide section 163a of the guide section 163 by the claw body 165.

The guide portion 163a and the claw 165 of the guide portion 163 of the posture changing portion 162 change the posture of the crop a from the conveyance terminal portion 111b of the 1 st conveyance body 111 to a horizontal posture in which the portion of the crop a with the fruit A2 is on the side (right side) closer to the separating portion 105 than the stem A1 of the crop a. The upper guide 182 assists the posture change of the crop a in the horizontal posture.

Next, the stem A1 of the crop a, which is separated from the conveyance terminal 111b of the 1 st conveyance body 111 to the rear side and is changed to the horizontal posture by the posture changing section 162, is sandwiched between the conveyance starting end 112a of the 2 nd conveyance body 112 and the stem guiding section 177, and is mounted on the conveyance starting end 112a of the 2 nd conveyance body 112.

At the same time, the upper part of the crop a is poured into the opening 184a of the dust cover 184, and the upper part of the crop a is guided by the rear guide 183 to the opening 184a of the dust cover 184.

Next, the stem A1 of the crop a in the horizontal posture is guided between the 2 nd conveying body 112 and the conveying start end portion 113a of the guide rail 113 by the guide member 161, sandwiched between the 2 nd conveying body 112 and the guide rail 113, and the crop a is conveyed to the rear side in the horizontal posture by the 2 nd conveying body 112 and the guide rail 113.

(Other modes of embodiment 2)

A harvesting unit 103 (1 st carrier 111), a2 nd carrier 112, and a guide rail 113 may be provided on the right part of the front part of the machine body 101.

According to this configuration, the separation section 105 is provided on the left side of the 2 nd conveyance body 112 and the guide rail 113. A hydraulic cylinder 141 and a load support portion 172 are provided on the right part of the front part of the body 1.

The entry preventing member 178 is attached to the right part of the harvesting unit 103, and the contact preventing members 179 and 180 are attached to the front and rear parts of the right lateral part of the body 101.

The entry preventing member 178 may be attached not only to the harvesting unit 103 but also to the machine body 101. According to this structure, in the case of raising the harvesting unit 3, the entry preventing member 178 remains in the vicinity of the position shown in fig. 15.

In the posture changing section 162, the annular rotor 164 and the claw 165 may be omitted, and the posture changing section 162 may be constituted by the guide section 163.

Instead of the crawler-type traveling device 102, the traveling device 102 may be provided with a plurality of traveling wheels (not shown).

[ Embodiment 3]

An embodiment (embodiment 3) which is an example of the present invention will be described below with reference to the drawings.

Fig. 28 to 41 show green soybean harvesters as an example of the crop harvesters.

In fig. 28 to 41, F represents a "front direction" of the body 201, B represents a "rear direction" of the body 201, U represents an "upper direction" of the body 201, and D represents a "lower direction" of the body 201. R represents the "right direction" of the body 201, and L represents the "left direction" of the body 201.

(Overall structure of Green soy bean harvester of embodiment 3)

As shown in fig. 28 and 29, the machine body 201 is supported by a left-right crawler-type traveling device 202, a harvesting unit 203 is provided at the left part of the front part of the machine body 201, and a driving unit 204 is provided at the right part of the front part of the machine body 201.

A separating unit 205 is provided at the rear of the machine body 201, a 2 nd carrier 209 (corresponding to the carrier) and a guide rail 213 are provided at the left side of the separating unit 205, a support table 206 and a working deck (deck) 207 are provided at the right side of the machine body 201, and the recovery box 217 is placed on the support table 206.

(Structure of harvesting portion of embodiment 3)

As shown in fig. 28, 29, and 30, at the front of the harvesting unit 203, the left and right driven wheels 245 are rotatably supported about an axial center P' extending in the oblique vertical direction. At the rear of the harvesting unit 203, the left and right driving wheels 246 are rotatably supported around an axial center P' in the obliquely upward and downward direction for two weeks. In this case, the axis P '-1 and the axis P' -2 are parallel to each other.

A right 1 st conveyance body 208 made of rubber tape is attached to the right driven wheel 245 and the right driving wheel 246. A rubber belt-made left 1 st conveyance body 208 is mounted over the left driven wheel 245 and the left driving wheel 246.

The 1 st conveying body 208 is disposed over the entire length of the harvesting unit 203. The plurality of rollers 247 are rotatably supported by the harvesting section 203, and the opposite side of the engaging portion (the nip portion of the crop a) of the 1 st conveyance body 208 is supported by the rollers 247. A left/right divider 248 and a core shovel 249 are attached to the front part of the harvesting unit 203.

The harvesting unit 203 is supported by the left part of the front part of the body 201 in a front-rear direction in a posture inclined in a side view so that the front part of the harvesting unit 203 is on the lower side and the rear part of the harvesting unit 203 is on the upper side.

In the 1 st conveyance body 208, the conveyance start end portion 208a is in the vicinity of the driven wheel 245, and the conveyance end portion 208b is in the vicinity of the driving wheel 246. Accordingly, the 1 st conveying body 208 extends straight from the conveying start end 208a to the conveying end 208b of the 1 st conveying body 208, without twisting, to the obliquely upper rear side.

(Structure of separation portion of embodiment 3)

As shown in fig. 28, 29, and 30, the separation unit 205 is provided in the body 201. The separation section 205 is provided with an upper 1 st rotor 211 (corresponding to an upper rotor), a lower 1 st rotor 212 (corresponding to a lower rotor), an upper 2 nd rotor 221 (corresponding to an upper rotor), and a lower 2 nd rotor 222 (corresponding to a lower rotor).

The separating section 205 is provided with a recovery conveyor 210 disposed in the front-rear direction below the 1 st upper rotating body 211 and the 1 st lower rotating body 212, and the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222.

A transport conveyor 214 is provided below the rear of the recovery conveyor 210 in the left-right direction, a discharge conveyor 215 is provided at a predetermined interval from the rear of the recovery conveyor 210 to the rear, and a fan 216 is provided below the recovery conveyor 210.

As shown in fig. 30 and 33, wall portions 243 and 244 are provided on the right side of the separation portion 205. The wall portion 243 is disposed in the front-rear direction in a plan view, and the wall portion 244 is disposed so as to be inclined so as to intersect the front-rear direction in a plan view. Wall portions 240 and 229 are provided on the left side of the separation portion 205. The wall portions 240 and 229 are arranged in the front-rear direction in a plan view, and an opening 230 in the front-rear direction is provided between the upper wall portion 240 and the lower wall portion 229.

(Structure of the 1 st upper rotor and 1 st lower rotor, and the 2 nd upper rotor and 2 nd lower rotor according to embodiment 3)

As shown in fig. 30, 33, and 34, the 1 st upper rotor 211 (the 1 st lower rotor 212, the 2 nd upper rotor 221, and the 2 nd lower rotor 222) is provided with a shaft portion 218 and two striking portions 219.

The shaft portion 218 is formed in a hexagonal shaft shape. The striking portion 219 is formed in a flat plate shape, is coupled to the shaft portion 218 with a phase difference of 180 degrees therebetween, and protrudes radially outward. An edge portion 220 made of hard rubber is attached to the outer end portion of the striking portion 219.

As shown in fig. 34, the diameter D1 of the rotation locus of the 1 st upper rotating body 211 is set to be the same as the diameter D1 of the rotation locus of the 1 st lower rotating body 212. The diameter D1 of the rotation locus of the 2 nd upper rotating body 221 and the diameter D1 of the rotation locus of the 2 nd lower rotating body 222 are set to be the same, and the diameter D1 of the rotation locus of the 2 nd upper rotating body 221 (the 2 nd lower rotating body 222) is set to be slightly smaller than the diameter D1 of the rotation locus of the 1 st upper rotating body 211 (the 1 st lower rotating body 212).

(Arrangement of the 1 st upper rotor and 1 st lower rotor, and the 2 nd upper rotor and 2 nd lower rotor according to embodiment 3)

As shown in fig. 30, 33, and 34, the 1 st upper rotating body 211 is supported by the bearing 223 so as to be rotatable around the 1 st upper axis P' -11 (corresponding to the upper axis) over the wall 244 and the wall 240.

The 1 st lower rotating body 212 is supported by the bearing 223 on the lower side of the 1 st upper axis P ' 11 around the 1 st lower axis P ' 12 (corresponding to the lower axis) along the 1 st upper axis P ' 11 so as to be rotatable over the wall 244 and the wall 229.

The 2 nd upper rotating body 221 is supported by the bearing 223 so as to be rotatable around the 2 nd upper axis P' -21 (corresponding to the upper axis) over the wall 244 and the wall 240.

The 2 nd lower rotating body 222 is supported by the bearing 223 on the lower side of the 2 nd upper axis P ' 21 around the 2 nd lower axis P ' 22 (corresponding to the lower axis) along the 2 nd upper axis P ' 21 so as to be rotatable over the wall 244 and the wall 229.

As shown in fig. 30, the 1 st upper rotating body 311 and the 1 st lower rotating body 312 are disposed closer to the conveyance starting end 309a side (front side) of the 2 nd conveyance body 309 than the 2 nd upper rotating body 321 and the 2 nd lower rotating body 322 (refer to the (overall structure of the 2 nd conveyance body) described later).

The portions on the 2 nd conveyance body 209 side of the 1 st upper rotor 211 and the 1 st lower rotor 212 are disposed so as to be located on the conveyance start end 209a side (front side) of the 2 nd conveyance body 209 than the portions on the opposite side of the 2 nd conveyance body 209 of the 1 st upper rotor 211 and the 1 st lower rotor 212, and the 1 st upper rotor 211 and the 1 st lower rotor 212 (the 1 st upper axis P '11 and the 1 st lower axis P' 12) are inclined (crossed) with respect to the 2 nd conveyance body 209 in a plan view.

The 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 (the 2 nd upper axial center P '21 and the 2 nd lower axial center P' 22) are disposed so as to be inclined (crossed) with respect to the 2 nd conveying body 209 in a plan view so that the portions of the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 on the 2 nd conveying body 209 side are located closer to the conveyance start end portion 209a side (front side) of the 2 nd conveying body 209 than the portions of the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 on the 2 nd conveying body 209 side.

The angle B22 between the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 (the 2 nd upper axis P '-21 and the 2 nd lower axis P' -22) and the 2 nd conveying body 209 is set to be larger than the angle B21 between the 1 st upper rotating body 211 and the 1 st lower rotating body 212 (the 1 st upper axis P '-11 and the 1 st lower axis P' -12) and the 2 nd conveying body 209.

A drive shaft 225 is connected to a portion of the shaft portion 218 of the 1 st upper rotating body 211 (2 nd upper rotating body 221) on the opposite side of the 2 nd carrier 209 via a transmission shaft 224, and the 1 st upper rotating body 211 (2 nd upper rotating body 221) is driven to rotate in the rotation direction C1 by the power of the drive shaft 225 (see fig. 34).

A drive shaft 225 is connected to a portion of the shaft portion 218 of the 1 st lower rotor 212 (the 2 nd lower rotor 222) on the opposite side of the 2 nd carrier 209 via a transmission shaft 224, and the 1 st lower rotor 212 (the 2 nd lower rotor 222) is rotationally driven in a rotational direction C2 opposite to the rotational direction C1 by power of the drive shaft 225 (see fig. 34).

(Structure of the position changing portion and dust cover of embodiment 3)

As shown in fig. 28, 29, and 32, a posture changing section 262 is attached to an upper portion of the conveyance terminal section 208b of the 1 st conveyance body 208. The posture changing section 262 is provided with a guide section 263, an annular rotor 264, and a claw 265.

The guide portion 263 includes two sets of upper and lower portions, and extends rearward from the conveyance terminal portion 208b of the 1 st conveyance body 208 and is disposed so as to be inclined toward the side (right side) closer to the diagonal separation portion 205 in a plan view.

The power transmitted to the 1 st conveyance body 208 (the driving wheel 246) is branched and transmitted to the endless rotating body 264, and the endless rotating body 264 is rotationally driven in the clockwise direction in fig. 29. The claw body 265 is attached to the annular rotating body 264 with a predetermined interval therebetween in the moving direction of the annular rotating body 264, and is rotationally driven in the clockwise direction in fig. 29 integrally with the annular rotating body 264.

The dust cover 226 is disposed so as to be positioned on the right side of the posture changing section 262. The dust cover 184 is formed by combining plates into a box shape, and the opening 226a is opened in the left portion of the dust cover 226.

The dust cover 226 corresponds to an inlet of the separating portion 205, and as described later (a state at the harvesting portion in the whole harvesting flow of the green bean harvester), the upper portion of the crop a is poured into the opening 226a of the dust cover 226, and enters the separating portion 205 from the dust cover 226.

(Overall structure of the 2 nd carrier of embodiment 3)

As shown in fig. 28, 31, and 32, a drive mechanism 227 is supported on the left part of the body 201, and a drive sprocket 227a that is driven to rotate around the axis in the left-right direction is provided on the drive mechanism 227. The rotation wheels 255 and 256 are rotatably supported around the axis in the left-right direction at the front portion of the left portion of the body 201, and the rotation wheel 257 is rotatably supported around the axis in the left-right direction at the rear portion of the left portion of the body 201.

The 2 nd carrier 209 is attached to the drive sprocket 227a and the rotation wheels 255, 256, 257 of the drive mechanism 227, and the 2 nd carrier 209 is disposed in the front-rear direction in the left portion of the machine body 201 (left side of the separation portion 205). The 2 nd carrier 209 is rotationally driven by the drive sprocket 227a of the drive mechanism 227 in the clockwise direction in fig. 28 and 31.

The 2 nd carrier 209 extends rearward from the carrier terminal end 208b of the 1 st carrier 208, and the portion between the 2 nd carrier 209, the swivel wheel 255, and the swivel wheel 256 is a carrier start end 209a, and the vicinity of the swivel wheel 257 is a carrier end 209b.

The front portion (portion of the rotation wheel 255) of the conveyance starting end portion 209a of the 2 nd conveyance body 209 is disposed below the rear portion (portion of the rotation wheel 256) of the conveyance starting end portion 209a of the 2 nd conveyance body 209, and the conveyance starting end portion 209a of the 2 nd conveyance body 209 is disposed in an inclined upward posture along the lower side of the conveyance terminal end portion 208b of the 1 st conveyance body 208.

The portion of the 2 nd conveyance body 209 extending from the rear portion of the conveyance start end portion 209a (the portion of the rotation wheel 256) to the conveyance end portion 209b is arranged in a substantially horizontal posture in a side view.

(Specific Structure of the 2 nd carrier of embodiment 3)

As shown in fig. 35, 36, 39, and 40, the 2 nd carrier 209 is provided with a1 st portion 231, a2 nd portion 232, a connecting portion 233, a pin 234, and a sleeve 235.

The 1 st portion 231 is formed in an elongated flat plate shape (rod shape), and a1 st protrusion 231a having a triangular shape in side view is provided at the front and rear central portions.

The 2 nd portion 232 is formed in an elongated flat plate shape (rod shape) like the 1 st portion 231, and is provided with a2 nd protrusion 232a having a triangular shape in a side view at the front-rear center portion.

The connection portion 233 is formed in an elongated flat plate shape (rod shape) like the 2 nd portion 232, is formed in the same length as the 2 nd portion 232, and is not provided with a protrusion.

The 1 st portions 231 are alternately arranged in the left-right direction, and the front and rear portions of the 1 st portions 231 overlap. The 2 nd portions 232 and the connection portions 233 are alternately arranged in the left-right direction while the front and rear portions of the 2 nd portions 232 and the connection portions 233 overlap. In a state where the sleeve 235 is disposed between the 1 st part 231 and the 2 nd part 232, the pin 234 is inserted, and the pin 234 is attached to the 1 st part 231 and the 2 nd part 232 (the connecting part 233).

Thus, the 1 st portion 231 is connected by the pin 234, the 2 nd portion 232 and the connecting portion 233 are connected by the pin 234, and the 2 nd carrier 209 is formed in an annular chain shape. The 1 st part 231 and the 2 nd part 232 (connecting part 233) are arranged at intervals corresponding to the length of the sleeve 235, and the 1 st part 231 and the 2 nd part 232 (connecting part 233) can be freely bent at the portion of the pin 234.

(Arrangement of the 2 nd carrier of embodiment 3)

As shown in fig. 35, 38, and 39, the elongated support member 228 is connected to the upper portion of the wall 229 at the position of the rotation wheel 255 and the position of the rotation wheel 257, and the 2 nd carrier 209, the pin 234, and the sleeve 235 are mounted on the support member 228. Thus, the portion extending from the rear portion (portion of the swivel wheel 256) of the conveyance starting end portion 209a of the 2 nd conveyance body 209 to the conveyance end portion 209b is disposed in a substantially horizontal posture in side view.

When the 2 nd carrier 209 is rotationally driven by the drive mechanism 227, the pin 234 and the sleeve 235 move along the support member 228, whereby the 1 st portion 231 and the 2 nd portion 232 (the connecting portion 233) move from the position of the rotating wheel 255 to the position of the rotating wheel 257.

As shown in fig. 35, 39, and 40, in the 2 nd carrier 209, the 1 st portion 231 is disposed on the left side of the support member 228 and on the side farther from the separation portion 205. The 2 nd portion 232 and the connecting portion 233 are disposed on the right side of the support member 228, and are disposed on the side closer to the separation portion 205, and slightly enter the opening 230.

The support member 228 is positioned between the 1 st portion 231 and the 2 nd portion 232 (the connecting portion 233) when viewed from the front, and the position of the 2 nd carrier 209 (the 1 st portion 231, the 2 nd portion 232, and the connecting portion 233) in the lateral direction is determined by the support member 228.

The 1 st portion 231 is arranged in a row along the moving direction of the 2 nd carrier 209, and the 1 st protrusion 231a of the 1 st portion 231 is provided at a 1 st interval W1. The 1 st projection 231a of the 1 st portion 231 projects upward (on the guide rail 213 side) over the position of the rotation wheel 255 and the position of the rotation wheel 257.

The 2 nd portion 232 and the connecting portion 233 are arranged in a row along the moving direction of the 2 nd carrier 209, and the 2 nd protrusion 232a of the 2 nd portion 232 is provided at a 2 nd interval W2. The 2 nd protrusion 232a of the 2 nd portion 232 protrudes upward (on the guide rail 213 side) over the position of the rotation wheel 255 and the position of the rotation wheel 257.

The connection portion 233 is provided between the 2 nd portion 232 and the 2 nd portion 232, whereby the 2 nd interval W2 is larger than the 1 st interval W1. In this case, the 2 nd portion 232 and the connection portion 233 have the same length, so the 2 nd interval W2 is 2 times the 1 st interval W1.

(Structure of guide Rail of embodiment 3)

As shown in fig. 28, 31, and 32, the guide rail 213 is disposed along the upper side of the 2 nd carrier 209, and the 1 st rail portion 241, the 2 nd rail portion 242, and the pin 236 are provided on the guide rail 213.

As shown in fig. 35, 37, 38, and 39, the plate material is bent in a channel shape to form a1 st rail portion 241, and the 1 st rail portion 241 is provided with an upper side portion 241a and lateral side portions 241b and 241c extending downward from the upper side portion 241 a. In the 1 st rail portion 241, the front-rear length of the lateral side portions 241b, 241c is longer than the front-rear length of the upper side portion 241a, and circular hole-shaped opening portions 241d are opened at the portions of the lateral side portions 241b, 241c extending from the upper side portion 241 a.

A plate-like right and left 2 nd rail portion 242 is provided, and a long hole-like opening 242a is opened in the 2 nd rail portion 242. The 2 nd track portion 242 enters the 1 st track portion 241, and the 1 st track portion 241 and the 2 nd track portion 242 are joined.

The 1 st track portion 241 and the 2 nd track portion 242 connected as described above are arranged in a row along the 2 nd carrier 209. Of the 1 st track portion 241 and the 2 nd track portion 242 arranged one behind the other, the 2 nd track portion 242 is inserted into the inner sides of the lateral portions 241b, 241c of the 1 st track portion 241, and the pin 236 is mounted over the opening 241d of the 1 st track portion 241 and the opening 242a of the 2 nd track portion 242.

Thus, the 1 st track portion 241 and the 2 nd track portion 242 are connected by the pin 236, and can be bent at the portion of the pin 236.

As shown in fig. 28, 31, and 32, the guide member 261 made of round bar material is attached to the 1 st rail portion 241 of the front end of the 2 nd conveyance body 209 on the conveyance start end portion 209a side at the guide rail 213. The guide member 261 projects forward along the 2 nd conveying body 209, and projects obliquely upward and forward from the rear portion (portion of the rotation wheel 256) of the conveying start end portion 209a of the 2 nd conveying body 209 in side view.

The guide member 252 composed of a round bar is attached to the 1 st rail portion 241 of the rear end of the 2 nd carrier 209 on the side of the conveyance terminal 209b at the guide rail 213. The guide member 252 extends rearward along the 2 nd conveying body 209, and extends obliquely downward and rearward from the conveying terminal portion 209b (portion of the swivel wheel 257) of the 2 nd conveying body 209 in a side view.

(Support Structure of guide Rail of embodiment 3)

As shown in fig. 31 and 32, a support frame 258 is supported in the front-rear direction on the upper portion of the left part of the body 201. As shown in fig. 35, 37, 38, and 39, the tubular guide member 237 is attached to the support frame 258 in the vertical direction, and the support rod 259 is inserted into the guide member 237 so as to be movable vertically.

An annular blocking member 238 and a fixing pin 239 are attached to an upper end portion of the support rod 259. The stopper 238 and the fixing pin 239 collide with the upper end portion of the guide member 237, thereby determining the lower limit position of the up-and-down movement of the support rod 259.

The connection member 250 is connected to the lower end of the support lever 259. The connection member 250 is provided with a circular receiving portion 250a, a drop-preventing portion 250b in which an edge portion of the receiving portion 250a is bent upward, and a lateral portion 250c in which an edge portion of the receiving portion 250a is bent downward.

As described above (the structure of the guide rail), when the pin 236 is attached over the opening 241d of the 1 st rail portion 241 and the opening 242a of the 2 nd rail portion 242, the pin 236 is also inserted into the opening of the lateral portion 250c of the connecting member 250, and the connecting member 250 (the support rod 259) is connected to the guide rail 213 (the 1 st rail portion 241 and the 2 nd rail portion 242).

A receiving member 251 is attached to a lower end portion of the guide member 237, and a spring 260 is attached over the receiving portion 250a of the connecting member 250 and the receiving member 251, and the support rod 259 is biased toward the 2 nd carrier 209 (lower side) by the spring 260.

In a state where the support lever 259 is located at the lower limit position, the spring 260 is slightly compressed from the free length, and an initial force is generated in the spring 260. The detachment of the spring 260 from the receiving portion 250a of the connection member 250 is prevented by the escape prevention portion 250b of the connection member 250.

(Positional relationship between the 2 nd carrier and the guide rail according to embodiment 3)

As shown in fig. 28 and 31, in the guide rail 213, the 1 st rail portion 241 of the head of the 2 nd carrier 209 on the side of the conveyance start end portion 209a is the conveyance start end portion 213a, and the 2 nd rail portion 242 of the rear end of the 2 nd carrier 209 on the side of the conveyance end portion 209b is the conveyance end portion 213b.

As shown in fig. 31 and 32, the conveyance starting end 213a of the guide rail 213 is located slightly behind the rear portion (the portion of the swivel wheel 256) of the conveyance starting end 209a of the 2 nd conveyance body 209 in a side view. The conveyance terminal portion 213b of the guide rail 13 is located slightly forward of the conveyance terminal portion 209b (portion of the swivel wheel 257) of the 2 nd conveyance body 209 in a side view.

As shown in fig. 39, the portions of the guide rail 213 (the lateral portion 241c of the 1 st rail portion 241 and the right 2 nd rail portion 242) on the side closer to the separation portion 205 are disposed on the side farther from the separation portion 205 (left side) with respect to the 2 nd portion 232 and the connecting portion 233 of the 2 nd carrier 209 in rear view and plan view, and are disposed between the 1 st portion 231 and the 2 nd portion 232 and the connecting portion 233 of the 2 nd carrier 209.

The portions of the guide rail 213 (the lateral portion 241b of the 1 st rail portion 241 and the left 2 nd rail portion 242) on the side farther from the separation portion 205 are disposed on the side farther from the separation portion 205 (left side) with respect to the 1 st portion 231 of the 2 nd carrier 209 in a rear view and a plan view.

Thus, the 1 st portion 231 of the 2 nd carrier 209 is disposed between the lateral portions 241b, 241c of the 1 st rail portion 241 and the 2 nd rail portion 242 of the guide rail 213 in rear view and in plan view.

As shown in fig. 38 and 39, in a state where the support lever 259 is located at the lower limit position, the lateral portion 241c of the 1 st rail portion 241 and the lower end portion of the 2 nd rail portion 242 of the guide rail 213 are slightly separated upward from the pin 234 and the sleeve 235 of the 2 nd carrier 209.

In a state where the support lever 259 is located at the lower limit position, the lateral portions 241b and 241c of the 1 st rail portion 241 and the 2 nd rail portion 242 of the guide rail 213 and the 1 st projection 231a of the 1 st portion 231 and the 2 nd projection 232a of the 2 nd portion 232 of the 2 nd carrier 209 overlap each other in a side view.

(The state of the harvesting part in the overall harvesting procedure of the green bean harvester according to embodiment 3)

The following describes the state of each part in the whole flow of the harvest of the green soybean harvester (the states of the recovery conveyor, the conveying conveyor, and the discharge conveyor at the separation part in the whole flow of the harvest of the green soybean harvester) in order.

As shown in fig. 28 and 29, in the harvesting unit 203, when the divider 248 is brought into contact with the field and the core shovel 249 is moved into the field, the field crop a is divided by the divider 248 and the core shovel 249 digs the field, and the crop a in the standing posture of the field is moved into the conveyance start end portion 208a of the left and right 1 st conveyance bodies 208.

The crop a in the standing posture of the field is gripped from the left and right sides by the left and right 1 st conveying bodies 208, pulled out and lifted by the left and right 1 st conveying bodies 208, and conveyed obliquely upward along the harvesting section 203 while maintaining the standing posture.

When the crop a reaches the conveyance end portion 208b of the 1 st conveyance body 208, the posture of the crop a in the standing posture is changed to the horizontal posture on the separation portion 205 side by the posture changing portion 262 at the transfer portion from the conveyance end portion 208b of the 1 st conveyance body 208 to the conveyance start portion 209a of the 2 nd conveyance body 209, and the upper portion of the crop a is introduced into the opening 226a of the dust cover 226 in an poured manner.

(Carrying state of crop by the 2 nd carrier and the guide rail in the overall process of harvesting by the green soybean harvester according to embodiment 3)

As the upper portion of the crop a is poured into the opening 226a of the dust cover 226, the stem A1 of the crop a is delivered to the conveyance starting end portion 209a of the 2 nd conveyance body 209, and the stem A1 of the crop a in the horizontal posture is guided by the guide member 261 and is sandwiched between the conveyance starting end portion 209a of the 2 nd conveyance body 209 and the conveyance starting end portion 213a of the guide rail 213.

As shown in fig. 31 and 32, when the stem A1 of the crop a is clamped between the 2 nd carrier 209 and the guide rail 213, the guide rail 213 (the 1 st rail portion 241 and the 2 nd rail portion 242) is bent and lifted upward by the stem A1 of the crop a, and the stem A1 of the crop a is clamped between the 2 nd carrier 209 and the guide rail 213 (the 1 st rail portion 241 and the 2 nd rail portion 242) by the urging force of the spring 260.

When the 2 nd carrier 209 is rotationally driven in a state where the stem A1 of the crop a in the horizontal posture is sandwiched between the 2 nd carrier 209 and the guide rail 213, the stem A1 of the crop a is carried rearward by the 2 nd carrier 209 (the 1 st protrusion 231a of the 1 st portion 231 and the 2 nd protrusion 232a of the 2 nd portion 232), and therefore the crop a enters the inside of the separation portion 205 from the opening 230 of the separation portion 205 and is carried from the carrying start end portion 209a to the carrying end portion 209b of the 2 nd carrier 209.

(The state of the crop when conveyed by the 2 nd conveying body and the guide rail in the whole process of harvesting by the green bean harvester according to embodiment 3)

When the stem A1 of the crop a is conveyed rearward by the 2 nd conveyance body 209, as shown in fig. 40 and 41, a portion of the stem A1 of the crop a that is farther from the separation portion 205 may be located between the 1 st protrusion 231a and the 1 st protrusion 231a of the 2 nd conveyance body 209 (1 st portion 231) in the moving direction of the 2 nd conveyance body 209.

The portion of the stem A1 of the crop a near the separation portion 205 may be located between the 2 nd protrusion 232a and the 2 nd protrusion 232a of the 2 nd carrier 209 (the 2 nd portion 232 and the connecting portion 233) in the moving direction of the 2 nd carrier 209.

The portion of the stem A1 of the crop a, which is farther from the separation section 205, and the portion of the separation section 205 are located between the 2 nd carrier (the 1 st portion 231, the 2 nd portion 232, and the connection portion 233) and the guide rail 213 (the 1 st rail portion 241 and the 2 nd rail portion 242) in the up-down direction.

The 2 nd interval W2 of the 2 nd protrusion 232a of the 2 nd carrier (the 2 nd portion 232 and the connecting portion 233) is set to be larger than the 1 st interval W1 of the 1 st protrusion 231a of the 2 nd carrier (the 1 st portion 231).

The portion of the stem A1 of the crop a that is farther from the separation portion 205 is movable between the 1 st projection 231a and the 1 st projection 231a of the 2 nd carrier 209 (1 st portion 231) upward and downward with respect to the 2 nd carrier 209 in the movement direction of the 2 nd carrier 209.

In this case, the 1 st interval W1 is small, and thus the movement range of the portion of the stem A1 of the crop a that is farther from the separation portion 205 is small.

The portion of the stem A1 of the crop a, which is closer to the separation portion 205, is movable between the 2 nd protrusion 232a and the 2 nd protrusion 232a of the 2 nd carrier 209 (the 2 nd portion 232 and the connecting portion 233) relative to the 2 nd carrier 209 in the upward and downward directions of the 2 nd carrier 209.

In this case, the 2 nd interval W2 is large, and thus the movement range of the portion of the stem A1 of the crop a near the separation portion 205 is large.

Thus, the portion of the stem A1 of the crop a closer to the separating portion 205 can move upward and downward in the moving direction of the 2 nd carrier 209 between the 2 nd protrusion 232a and the 2 nd protrusion 232a of the 2 nd carrier 209 (the 2 nd portion 232 and the connecting portion 233) with the vicinity of the 1 st portion 231 of the 2 nd carrier 209 (the portion of the stem A1 of the crop a farther from the separating portion 205) as a fulcrum.

The connection portion 233 is located on the transport start end portion 209a side of the 2 nd transport body 209 in the crop a with respect to the portion of the stem A1 of the crop a near the separation portion 205, and the upper portion of the crop a is in a state of being easily movable (state of being easily vibrated) in the range D1 near the transport start end portion 209a side of the 2 nd transport body 209.

The connection portion 233 is located in the crop a on the conveyance terminal end 209b side of the 2 nd conveyance body 209 with respect to the portion of the stem A1 of the crop a near the separation portion 205, and the upper portion of the crop a is in a state (state of easy vibration) in which it is easy to move in the range D2 on the conveyance terminal end 209b side of the 2 nd conveyance body 209.

In this case, when the upper part of the crop a is to move beyond the ranges D1 and D2 (at the time of vibration), the part of the stem A1 of the crop a close to the separation part 205 is blocked by the 2 nd protrusion 232a of the 2 nd carrier 209 (the 2 nd part 232 and the connecting part 233), and the movement (vibration) of the upper part of the crop a is blocked.

As shown in fig. 41, the lateral side portions 241c and 242c of the 1 st rail portion 241 and the 2 nd rail portion 242 of the guide rail 213 are not present immediately above the 2 nd carrier 209 (the 2 nd portion 232 and the connecting portion 233), and therefore the upper portion of the crop a is in a state (a state of being easy to vibrate) in which it is easy to move from the horizontal posture to the upper side range D3.

In this case, when the upper part of the crop a is to move beyond the range D3 (at the time of vibration), the part of the stem A1 of the crop a close to the separation part 205 is blocked by the 2 nd carrier 209 (the 2 nd part 232 and the connecting part 233) (blocked by the lateral part 241c of the 1 st track part 241 and the 2 nd track part 242 of the guide track 213), and the movement (vibration) of the upper part of the crop a is blocked.

(State of separating portion (1 st upper rotating body and 1 st lower rotating body, 2 nd upper rotating body and 2 nd lower rotating body) in the whole harvesting flow of the green bean harvester according to embodiment 3)

As shown in fig. 29 and 30, when the crop a in the horizontal posture is conveyed rearward by the 2 nd conveying body 209 and the guide rail 213, the crop a first enters between the 1 st upper rotating body 211 and the 1 st lower rotating body 212 in the separating section 205.

As shown in fig. 34, the striking part 219 of the 1 st upper rotating body 211 and the striking part 219 of the 1 st lower rotating body 212 alternately repeat the collision with the crop a, and the crop a is pushed toward the conveyance starting end 209a side of the 2 nd conveying body 209, so that the fruit A2 is separated from the crop a and falls down to the collecting conveyor 210 (refer to the structure of the separating part of the 3 rd embodiment).

Then, the crop a enters between the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222. The striking part 219 of the 2 nd upper rotating body 221 and the striking part 219 of the 2 nd lower rotating body 222 alternately and repeatedly collide with the crop a, and the crop a is pushed toward the conveying start end 209a side of the 2 nd conveying body 209, and the fruit A2 is separated from the crop a and falls down to the recovery conveyor 210.

The 1 st upper rotating body 211 and the 1 st lower rotating body 212 are disposed obliquely with respect to the 2 nd conveying body 209 at an angle B21. The 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 are disposed obliquely with respect to the 2 nd conveying body 209 at an angle B22.

The rotation direction C1 of the 1 st upper rotor 211 (the 2 nd upper rotor 221) and the rotation direction C2 of the 1 st lower rotor 212 (the 2 nd lower rotor 222) are set (refer to the aforementioned (arrangement of the 1 st upper rotor and the 1 st lower rotor, the 2 nd upper rotor and the 2 nd lower rotor of embodiment 3)).

Accordingly, when the striking portion 219 of the 1 st upper rotating body 211 (the 2 nd upper rotating body 221) and the striking portion 219 of the 1 st lower rotating body 212 (the 2 nd lower rotating body 222) collide with the crop a, a component force to pull out the crop a from the stem A1 side (the 2 nd conveying body 209 side) to the upper side occurs in a state where the stem A1 of the crop a is sandwiched between the 2 nd conveying body 209 and the guide rail 213, and therefore the crop a can be easily separated from the fruit A2 without bending the crop a toward the stem A1 side.

As shown in fig. 40 and 41, the above description (the state of the crop being transported by the 2 nd transporting body and the guide rail in the whole flow of harvesting by the green soybean harvester according to embodiment 3) is in a state in which the upper part of the crop a is easily moved in the ranges D1, D2, and D3 (a state in which the crop is easily vibrated).

Thus, when the striking part 219 of the 1 st upper rotating body 211 (the 2 nd upper rotating body 221) and the striking part 219 of the 1 st lower rotating body 212 (the 2 nd lower rotating body 222) collide with the crop a, even if a large separation action is to be applied to the upper part of the crop a, the upper part of the crop a moves (vibrates) in the ranges D1, D2, D3, whereby the large separation action can be released from the upper part of the crop a, and a state in which the upper part (stem) of the crop a is bent can be avoided.

(State under the recovery conveyor, the transport conveyor, and the discharge conveyor in the separation portion in the entire harvesting flow of the green bean harvester according to embodiment 3)

As shown in fig. 28, 29, and 30, the fruit A2 is separated from the crop a by the 1 st upper rotating body 211 and the 1 st lower rotating body 212, the 2 nd upper rotating body 221, and the 2 nd lower rotating body 222, and the separated fruit A2 falls down to the recovery conveyor 210. When the fruit A2 is separated from the crop a, the scraps such as leaves are also separated together and fall down to the recovery conveyor 210.

When the crop a from which the fruit A2 is separated is conveyed backward and the conveying terminal portion 213b of the guide rail 213 is separated, the crop a is sandwiched between the 2 nd conveying body 209 and the guide member 252, and discharged from the conveying terminal portion 209b of the 2 nd conveying body 209 and the guide member 252 to the field.

The recovery conveyor 210 is rotationally driven to the rear side, and the fruit A2 and the scraps falling down to the recovery conveyor 210 are conveyed to the rear side by the recovery conveyor 210, and fall from the rear side of the recovery conveyor 210 to the conveying conveyor 214.

The carrying air of the fan 216 flows from the lower side to the rear side of the collection conveyor 210, passes between the collection conveyor 210 and the discharge conveyor 215, and flows from the upper side to the rear side of the discharge conveyor 215.

When the fruit A2 and the scraps fall from the rear of the recovery conveyor 210, the fruit A2 falls to the conveying conveyor 214 against the conveying wind of the fan 216. The slag is carried on the discharge conveyor 215 by the carrying wind of the fan 216, and the slag carried on the discharge conveyor 215 is carried to the rear side by the discharge conveyor 215 and discharged to the field.

The transport conveyor 214 is driven to rotate toward the support table 206, and a plurality of recovery boxes 217 are mounted on the support table 206. The fruit A2 dropped onto the conveying conveyor 214 is conveyed toward the support table 6 by the conveying conveyor 214, and is thrown into the recovery box 217 located at the conveying terminal end of the conveying conveyor 214. When the recovery tank 217 at the conveyance terminal end of the conveyance conveyor 214 is full, the auxiliary operator of the working deck 207 changes to an empty recovery tank 217.

(Embodiment 3, mode 1 and other modes)

In the case where the 2 nd carrier 209 and the 2 nd sections 232 and the connecting sections 233 are alternately arranged, two or more connecting sections 233 may be used in a manner of being connected in the moving direction of the 2 nd carrier 209 without using one connecting section 233. According to this structure, the 2 nd interval W2 is 3 times or more longer than the 1 st interval W1.

(Embodiment 3, mode 2 and other modes)

In the 2 nd carrier 209, the 2 nd portions 232 may be alternately arranged and connected in the left-right direction of the 2 nd portions 232 without using the connection portions 233. In this structure, 1 st part 231 and connecting parts 233 may be alternately arranged and connected by using 1 st or 2 or more connecting parts 233 with respect to 1 st part 231. Thus, the 1 st interval W1 is longer than the 2 nd interval W2.

(Embodiment 3. The 3 rd other modes)

One or more projections (not shown) smaller than the 1 st projection 231a of the 1 st portion 231 and the 2 nd projection 232a of the 2 nd portion 232 may be provided to the connection portion 233.

According to this structure, when the upper part of the crop a moves in the ranges D1 and D2 (when vibrating), a small resistance acts on the upper part of the crop a from the protrusion of the connecting portion 233, and abrupt movement (vibration) of the upper part of the crop a is suppressed.

(Embodiment 3, mode 4 of the present invention)

The 1 st upper rotating body 211 and the 1 st lower rotating body 212 (the 1 st upper axis P '11 and the 1 st lower axis P' 12) may be disposed so as to be inclined (crossed) with respect to the 2 nd conveying body 209 in a plan view, so that the 2 nd conveying body 209 side portions of the 1 st upper rotating body 211 and the 1 st lower rotating body 212 are positioned closer to the conveying terminal portion 209b side (rear side) of the 2 nd conveying body 209 than the 2 nd conveying body 209 side portions of the 1 st upper rotating body 211 and the 1 st lower rotating body 212.

According to this configuration, the rotation directions C1, C2 of the 1 st upper rotating body 211 and the 1 st lower rotating body 212 are set so that the striking portion 219 of the 1 st upper rotating body 211 and the striking portion 219 of the 1 st lower rotating body 212 push the crop a toward the conveying terminal portion 209b side of the 2 nd conveying body 209.

(Embodiment 3, mode 5 and other modes)

The 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 (the 2 nd upper axis P '21 and the 2 nd lower axis P' 22) may be disposed so as to be inclined (crossed) with respect to the 2 nd conveying body 209 in a plan view, so that the portions of the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 on the 2 nd conveying body 209 side are positioned closer to the conveying terminal portion 209b side (rear side) of the 2 nd conveying body 209 than the portions of the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 on the opposite side of the 2 nd conveying body 209.

According to this configuration, the rotation directions C1, C2 of the 2 nd upper rotating body 221 and the 2 nd lower rotating body 222 are set so that the striking portion 219 of the 2 nd upper rotating body 221 and the striking portion 219 of the 2 nd lower rotating body 222 push the crop a toward the conveying terminal portion 209b side of the 2 nd conveying body 209.

(Embodiment 3, mode 6 of the present invention)

A harvesting unit 203 (1 st conveying body 208), a2 nd conveying body 209, and a guide rail 213 may be provided on the right part of the front part of the body 201. According to this configuration, the separation unit 205 is provided on the left side of the 2 nd carrier 209 and the guide rail 213.

Industrial applicability

The present invention can be applied not only to a green soybean harvester but also to a crop harvester for harvesting a crop a such as soybean, and can be applied to a crop harvester for harvesting the crop a while pulling out the crop a in the field, cutting the vicinity of the stem A1 of the crop a in the field, and the like, and leaving the root in the field.

Description of the reference numerals

[ Embodiment 1]

5 Separation part

11 St carrier 1

11B transport terminal portion of the 1st transport body

12 No. 2 carrier

12A transport start end of the 2 nd transport body

12A1 side surface

12A2 side

13 Guide rail

Conveying start end of 13a guide rail

13A1 side

13A2 side

52 Drive shaft (downside drive)

62 Posture changing section

63 Guide part

64 Annular rotor

65 Claw body

66 Drive shaft (Upper drive shaft)

72 Distribution transmission part

73 Drive part

76-Plant trunk support part

77 Stem guide

81 Stem guide

82 Upper guide portion

A crop

A1 crop plant trunk

Fruit of A2 crop

P1 and P2 axes

B1 imaginary line

[ Embodiment 2]

101 Machine body

102 Travelling device

103 Harvesting part

105 Separation part

111 St carrier 1

111B transport terminal portion of the 1 st transport body

112 No. 2 carrier

112A transport start end portion of the 2 nd transport body

138 Swing support

141 Oil pressure cylinder (lifting mechanism)

150 Swing fulcrum portion

151 Swing fulcrum portion

152 Drive shaft

153 Drive shaft

162 Posture changing part

163 Guide

164 Annular rotor

165 Claw body

172 Load supporting part

173 St support member

174 Nd support member

A crop

A1 crop plant trunk

Fruit of A2 crop

C path

P' -1 axis

P' -2 axis

P' -3 axis

P' -4 axis

P' -5 axis

P' -11 support axle center

[ Embodiment 3]

203 Harvesting part

205 Separation part

209 Nd 2 carrier (carrier)

209A conveying start end portion

2111 St upper rotating body (upper rotating body)

212 1 St lower rotating body (lower rotating body)

221 Nd upper rotating body (upper rotating body)

222 Nd lower rotating body (lower rotating body)

213 Guide rail

231 Part 1

232 Part 2

231A 1 st protrusion

232A protrusion 2

A crop

A1 trunk

A2 fruit

C1 direction of rotation

C2 rotational direction

P' -11 1 st upper axis (upper axis)

P' -12 1 st lower axis (lower axis)

P' -21 nd upper axis (upper axis)

P' -22 nd lower axle center (lower axle center)

W1 st interval 1

W2 interval 2.

Claims (18)

1. A crop harvester is characterized in that,

Comprises a left and right 1 st conveying body, a 2 nd conveying body, and a separating part,

The first and second conveying bodies 1 are driven to rotate around the axes in the oblique vertical direction, hold the crops in the field from the left and right sides, lift the crops from the field, convey the lifted crops to the rear side in the oblique upper side while maintaining the lifted crops in the standing posture,

The 2 nd carrier is driven to rotate around the axis of the left and right direction, the plant stem of the crop in the horizontal posture is kept, the separation part is arranged at the right side or the left side of the 2 nd carrier, the fruit is separated from the crop conveyed by the 2 nd carrier,

The crop harvester includes a posture changing section that changes a posture of the crop from a conveying terminal section of the 1 st conveying body to a horizontal posture in which a fruit-bearing portion of the crop is located on a side closer to the separating section than a trunk of the crop, the trunk of the crop whose posture is changed to the horizontal posture is held by the 2 nd conveying body,

The posture changing section is disposed obliquely upward from a position above the conveyance terminal section of the 1 st conveyance body in a side view, and overlaps with the conveyance start section of the 2 nd conveyance body in a plan view, and the posture changing section changes the posture by pushing the upper part of the crop from the conveyance terminal section of the 1 st conveyance body toward the conveyance start section of the 2 nd conveyance body.

2. The crop harvester of claim 1,

The posture changing section is disposed at a position above the conveying terminal section of the 1 st conveying body and at a position away from the conveying terminal section of the 1 st conveying body toward the rear side.

3. The crop harvester of claim 1,

The position between the conveying terminal end of the 1 st conveying body and the posture changing part is provided with a stem guiding part for guiding the stem of the crop to the conveying start end side of the 2 nd conveying body in side view.

4. The crop harvester of claim 1,

An upper guide portion for guiding the upper portion of the crop to the transport start end portion side of the 2nd transport body is provided at a position above the posture changing portion in a side view.

5. The crop harvester of claim 1,

The posture changing section is provided with a guide section, an annular rotor, and a claw body,

The guide portion is disposed so as to be inclined from the conveyance terminal portion of the 1 st conveyance body to the conveyance start portion of the 2 nd conveyance body in a plan view,

The annular rotator is driven to rotate around an axis in the vertical direction, and moves along the guide portion from the conveyance terminal portion side of the 1 st conveyance body to the conveyance start portion side of the 2 nd conveyance body,

The claw body is mounted on the annular rotating body at a predetermined interval along the moving direction of the annular rotating body, and pushes the crop from the conveying terminal portion side of the 1 st conveying body to the conveying start portion side of the 2 nd conveying body along with the rotation of the annular rotating body.

6. The crop harvester of claim 4,

Comprises a distribution transmission part, a lower transmission shaft and an upper transmission shaft,

The distribution transmission part is arranged between the conveying terminal part of the 1 st conveying body and the posture changing part,

The transmission part transmits power to the distribution transmission part from the outer side position relative to the part which clamps the crops by the 1 st conveying body,

The lower transmission shaft transmits the power transmitted to the distribution transmission part to the 1st conveying body positioned at the lower side of the distribution transmission part,

The upper transmission shaft transmits the power transmitted to the distribution transmission unit to the posture changing unit located above the distribution transmission unit.

7. The crop harvester of claim 1,

Comprises a guide rail extending rearward along the upper side of the 2 nd carrier,

The stem of the crop changed from the posture of the conveying terminal end of the 1 st conveying body to the horizontal posture is clamped between the 2 nd conveying body and the guiding rail, is conveyed to the rear side by the 2 nd conveying body,

The 2 nd carrier is disposed so that a left and right central portion of a conveyance start end portion of the 2 nd carrier is displaced toward a side close to the separation portion in a plan view with respect to an imaginary line extending in a conveyance direction of the 1 st carrier from portions of the 1 st carrier on the left and right sides that are in contact with each other.

8. The crop harvester of claim 7,

The side surface of the guide rail on the side closer to the separation section is arranged between the side surface of the 2 nd carrier on the side closer to the separation section and the side surface on the side farther from the separation section in a plan view,

The side surface of the guide rail on the side remote from the separation section is disposed on the side remote from the separation section with respect to the side surface of the 2 nd carrier on the side remote from the separation section in plan view.

9. The crop harvester of claim 7 or 8, wherein,

The transport terminal portion of the 1 st transport body and the transport start portion of the 2 nd transport body are arranged to overlap each other in a plan view,

The conveying start end of the 2 nd conveying body is arranged at a position below the conveying terminal end of the 1 st conveying body in side view,

The conveyance start end portion of the guide rail is disposed at a position on the rear side of the conveyance end portion of the 1 st conveyance body.

10. The crop harvester of claim 9,

The plant stem guide part is arranged along the side surface of the 2 nd conveying body at the side far from the separation part at the conveying starting end part of the 2 nd conveying body, and is used for preventing the plant stem of crops from leaving from the conveying starting end part of the 2 nd conveying body.

11. The crop harvester of claim 9,

The stem support portion for receiving the stem of the crop from the lower side and guiding the stem to the rear side is disposed at a position distant from the separating portion in a plan view with respect to the conveyance start end portion of the 2 nd conveyance body.

12. The crop harvester of claim 1,

Comprises a machine body and a harvesting part,

The aforesaid machine body is supported by the travelling device,

The harvesting part is provided with the 1 st conveying body,

Comprises a swing fulcrum portion, a swing supporting portion, and a lifting mechanism,

The swing fulcrum part is connected with the upper part of the rear part of the harvesting part and extends upwards,

The swing supporting part is connected with the machine body, and supports the swing supporting point part in a manner of swinging up and down around a supporting axle center in the left-right direction,

The lifting mechanism is connected to the harvesting unit and the machine body so as to lift and lower the harvesting unit.

13. The crop harvester of claim 12,

The harvester comprises a right-side swing fulcrum part connected with the upper part of the right part of the rear part of the harvesting part and extending upwards, and a right-side swing supporting part for supporting the right-side swing fulcrum part in a manner of swinging up and down around the supporting shaft core,

The harvester comprises a left swing fulcrum part connected with the upper part of the left part of the rear part of the harvesting part and extending upwards, and a left swing supporting part for supporting the left swing fulcrum part to swing up and down around the supporting shaft core,

A passage through which the crop passes is provided between the right swing fulcrum portion and the right swing support portion, and between the left swing fulcrum portion and the left swing support portion.

14. The crop harvester of claim 12 or 13, wherein,

A driving shaft and a transmission shaft are arranged on the swinging fulcrum part,

The driving shaft is disposed vertically to rotationally drive the 1 st carrier,

The drive shaft transmits power to the drive shaft from an outer position with respect to a portion of the drive shaft that holds the crop by the 1 st carrier.

15. The crop harvester of claim 14,

The device is provided with a posture changing part which is connected with the upper part of the swinging fulcrum part, changes the posture of the crop from the conveying terminal part of the 1 st conveying body to a horizontal posture, and in the horizontal posture, the plant stem of the crop with fruits is positioned at one side close to the separating part relative to the plant stem of the crop, and the plant stem of the crop with fruits which is changed to the horizontal posture is held by the 2 nd conveying body.

16. The crop harvester of claim 15,

The posture changing section is provided with a guide section, an annular rotor, and a claw body,

The guide portion is disposed so as to be inclined from the conveyance terminal portion of the 1 st conveyance body to the conveyance start portion of the 2 nd conveyance body in a plan view,

The annular rotator is driven to rotate around the axis in the vertical direction by the power of the driving shaft, moves along the guide portion from the conveyance terminal portion side of the 1 st conveyance body to the conveyance start portion side of the 2 nd conveyance body,

The claw body is mounted on the annular rotating body at a predetermined interval along the moving direction of the annular rotating body, and pushes the crop from the conveying terminal portion side of the 1 st conveying body to the conveying start portion side of the 2 nd conveying body along with the rotation of the annular rotating body.

17. The crop harvester of claim 12 or 13, wherein,

The harvester is provided with a load supporting part which is connected with the harvesting part through a part of the lower side of the swing supporting part of the machine body, allows the harvesting part to lift and supports the load applied to the harvesting part along the left-right direction.

18. The crop harvester of claim 17,

The load supporting part is provided with a1 st supporting part and a 2 nd supporting part,

The 1 st support member is supported by the body so as to be swingable up and down around an axial center in a left-right direction, and extends forward,

The 2 nd support member is supported swingably about a left-right axis of a front portion of the 1 st support member, and is connected swingably about a left-right axis of the harvesting portion.