JPH08256552A - Self-propelled rootcrop harvester - Google Patents

Abstract

PURPOSE: To provide a self-propelled rootcrop harvester designed to facilitate the maintenance of a power transmission mechanism set up between a pull conveyer and an engine on the driving seat side. CONSTITUTION: In this self-propelled rootcrop harvester mounted with a driving operational section A and an engine room on one side of the traveling machine body and a pull conveyer and a digger on the other side respectively in a vertically movable way and also mounted with a housing section to sort a rootcrop and house it therein in the rear of the machine body, a power transmission mechanism B is set up in the space between the engine E and the pull conveyer and a left and right revolving shaft 32b is set up on the lift revolving base for the pull conveyer 30 to enable the pull conveyer to be revolvable sideways.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction of a pull-out section of a self-propelled root vegetable harvester for mechanically harvesting root vegetables, especially carrots.

[0002]

2. Description of the Related Art Conventionally, a self-propelled root vegetable harvester for harvesting radish, carrots, etc. has been known. A driver's seat is arranged on one side of the upper part of the traveling device, and the other side is pulled out in parallel with the traveling direction. Place the conveyor, place a hoe-shaped excavating device at the tip of the extraction conveyor, insert this excavation device into the soil, excavate the root vegetables from the soil from below, and use the belt of the extraction conveyor. The root vegetables are sandwiched from both sides and pulled out while conveying the root vegetables diagonally upward, a cutter is placed at the rear end of the transportation section, the root of the root vegetables is cut by the cutter, and the root is stored in a storage container. Techniques for doing so are known.

[0003]

However, in the conventional root vegetable harvesting machine, the dug-up device and the pull-out conveyor are constructed so that they can be vertically moved up and down, and the dug-up depth and the leaf-holding position can be adjusted. However, it cannot rotate in the left-right direction. In other words, a power transmission mechanism such as a pulley, a belt, a chain and a sprocket is installed between the pull-out conveyor and the engine on the driver's side, but maintenance is very troublesome because this part is narrow. Was there. Further, when jamming, entanglement, or the like occurs during the transportation of the drawing conveyor, the work can be performed from only one side, and the simple removal work also takes a very long time.

[0004]

The present invention uses the following means in order to solve the above problems. That is, the driving operation part and the engine room are arranged on one side of the traveling machine body, the pulling conveyor and the dug up device are arranged on the other side so that they can be moved up and down, and the storage part for selecting root vegetables and storing them in the container is arranged at the rear part of the machine body. In the self-propelled root crop harvester, the power transmission mechanism is arranged in the space between the engine and the extraction conveyor, and the horizontal rotation shaft is arranged at the up-down rotation base of the extraction conveyor so that the extraction conveyor is lateral It is configured to be rotatable to.

[0005]

By performing the maintenance of the power transmission mechanism by using the above means, the belt is removed from the drive pulley that drives the pull-out conveyor, and the pull-out lever is pulled around the left-right turning shaft provided at the base. Rotate the conveyor to the side for maintenance. If the rear part of the pull-out conveyor hits the engine cover during the rotation of the pull-out conveyor, the engine cover is opened in the direction opposite to that of the pull-out conveyor, and the pull-out conveyor is turned sideways. Then, maintenance of the power transmission mechanism is performed from between the pull-out conveyor opened to the side and the operation operation unit.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the configuration of the present invention will be described with reference to the accompanying drawings. 1 is an overall side view of a self-propelled root crop harvester of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a rear view of an engine mounting portion, FIG. 4 is a perspective view of an auxiliary container base, and FIG. 5 is power transmission. It is a skeleton diagram of the mechanism.

The overall construction of a self-propelled root vegetable harvester, particularly a root vegetable harvester mainly for carrot harvesting, will be described with reference to FIGS. 1 and 2. First, the crawler type traveling device 2 is disposed below the horizontally arranged main frame 1, and the driving operation unit A is disposed on the front right side (right side in the traveling direction) of the main frame 1. There is. A front column 4 is erected on the front part of the operation unit A, and an operation lever 5 is provided on the upper part of the front column 4 so as to be able to simultaneously perform the steering operation and the raising / lowering operation of a digging device, which will be described later.
An accelerator lever 15 is arranged on the side. A side column 3 is erected on a side portion of the front column 4, and a main shift lever 12 and a sub shift lever 1 are provided on the side column 3.
3 and the work clutch lever 14 are projected.

A driver's seat 7 is disposed behind the front column 4 and an engine compartment is disposed below and rearward thereof, and an engine E is built in the engine compartment. The engine E is covered by an engine cover 6. It is being appreciated. As shown in FIG. 3, the lower end of the engine cover 6 is pivotally supported by the main frame 1, and the engine cover 6 can be opened by rotating the engine cover 6 rightward. A container stand 8 is placed on the engine cover 6.

A mechanism for digging root vegetables on the left side of the main frame 1, transporting the root vegetables backward, and cutting off the leaf portion,
A mechanism for accommodating the root portion in the container 10 is provided at the rear portion. That is, from the left front part of the main frame 1, a raising device, a gauge wheel for setting the height of the pulling conveyor, a raising device for pulling up the roots of the root vegetables, and a dugout for excavating the root vegetables in the soil therebelow. From the rear of the device and the raising device, there is a pulling conveyor that holds and conveys the dug up root vegetables, a leaf cutting device behind the pulling conveyor, and a sorting conveyor that conveys it to a side container.

Each device of this series of root vegetable harvesting device will be specifically described. First, in the excavating device, rotation fulcrum shafts 20 and 21 are laterally provided above and below the front end of the main frame 1, and the rotation fulcrum shafts 20 and 21 have upper and lower links 22 and 23, respectively. The rear portions are pivotally supported, and the front portions of the upper link 22 and the lower link 23 are pivotally connected to the bracket 25. The upper link 22 and the lower link 23 form a parallel link, and the upper end of the subsoiler 9 is fixed to the bracket 25. The lower end of the lower link 23 is connected to a hydraulic cylinder 24 via an arm so that it can be moved up and down.
A linking pin 26 projects laterally in the middle of the lower link 23 and is arranged so as to come into contact with a contact arm 27 provided on the side of the pulling conveyor 30 described later. Above link 2
An eccentric cam is provided between the rear part of the second rotary fulcrum shaft 20 and the rotary fulcrum shaft 20, and the rotary fulcrum shaft 20 can be driven from the output pulley 29 of the engine through a clutch and a belt so that the sub-soiler 9 can be vibration driven. In this way, the root vegetables are lifted up by vibrating the soil from below the root vegetables so that they can be easily pulled out.

The pull-out conveyor 30 has a conveyor supporting frame 31 extending downward in the rear portion, and a lower portion of the conveyor supporting frame 31 is supported by a supporting body 32 projecting upward from the main frame 1. The supporting body 32 is rotated right and left in a vertical direction. It has a shaft 32a and a vertical turning shaft 32b in the horizontal direction, and as shown by the chain double-dashed line (30 ') in FIG. 2, the pulling conveyor 30 is turned sideways about the left-right turning shaft 32a. The power transmission mechanism B can be opened. Then, a bolt or pin insertion hole is opened in the boss portion of the vertical rotation shaft 32b, and two fixing holes 32c are opened in the support body 32 at the closed position and the open position, respectively. The pulling conveyor 30 can be fixed in position by inserting a bolt or a pin at the laterally rotating position. Further, the pulling-out conveyor 30 is turned up and down around the vertical turning shaft 32b so that the pulling-out height can be changed or lifted.

The pull-out conveyor 30 is a transfer frame 3
0L and 30R are arranged parallel to each other in the front-rear direction and inclined to the front and rear and rear and high, and the lower rear surface of the transport frames 30L and 30R is supported by the conveyor support frame 31. Pulleys 33 are provided on both front and rear ends of the transport frames 30L and 30R.・ 33
Is arranged, and the guide pulleys 34, 34 ,.
. Is arranged, and the conveyor belts 30a and 30a are provided on these pulleys.
The auxiliary conveyer conveyor 36, in which a pair of left and right conveyer belts is wound, is provided on the lower surface of the pulling conveyor 30 from the middle portion to the rear portion, and the root portion of the root vegetable is sandwiched and conveyed. Further, star wheels 37, 37 are arranged above the front end of the pulling conveyor 30 to scrape the root portion of the root vegetable.

A pulling device 40 is arranged in front of the front end portion of the pulling conveyor 30, and the pulling device 40 vertically opposes the belts protruding the tines 40a. It is wound so that the leaf portion of the root vegetable is pulled upward in the center. A pulling device 41 is arranged in front of the pulling device 41.
Belts having protruding tines 41a, 41a, ... Are arranged vertically in the front-rear direction in the left-right direction in the same manner as 0, and the leaf portions are pulled up from both the left and right sides of the harvesting strip.

A gauge wheel 11 is disposed in front of the raising device 40. The gauge wheel 11 is rotatably supported by the tip of a support arm 42, and the other end has a fulcrum shaft below the raising device 40. A screw rod for raising and lowering is provided and connected to a midway portion, and this screw rod is driven by a motor 43 provided at the upper end so that it can be operated from the driving operation unit A. That is, the heights of the pretreatment devices of the raising device 40 and the pulling device 41 and the pulling conveyor 30 can be adjusted by moving the gauge wheel 11 up and down, and the nipping position of the root portion of the root vegetable can be adjusted.

An abutment arm 27 is projected from the front side of the carrying frame 30R and is disposed at a position where it can abut the linkage pin 26. When the hydraulic cylinder 24 is extended and raised, The extraction conveyor 30 and the pretreatment device can be raised together with the digging device, and when the hydraulic cylinder 24 is contracted and lowered, the extraction conveyor 3
0 and the pretreatment device simultaneously descend until the gauge wheel 11 comes into contact with the ground, and after the gauge wheel 11 comes into contact with the ground, only the mining device descends to the depth set by the driver's seat setting device (not shown).
This depth is detected by the sensor.

Further, a horizontal conveyor 45 is extended rearward in the front-rear direction in the rear part of the pulling conveyor 30 and the auxiliary transfer conveyor 36, and a cutter 46 is arranged on the lower surface of the middle part of the horizontal conveyor 45. The root portion of the root vegetables is conveyed backward while being positioned on the horizontal conveyor 45, the leaves are cut by a cutter 46 at a predetermined position, and the roots are dropped onto a lower conveyor 47 arranged below the leaves. Is dropped into the field from behind.

The lower conveyor 47 is composed of a wide belt conveyor and is horizontally arranged from the lower rear portion of the auxiliary conveyer conveyor 36 to the rear, and a transverse feed roller 49 is diagonally arranged on the middle portion of the lower conveyer 47. It is set up. When the root conveyor is driven by the lower conveyor 47 so as to be fed backward, the lateral feed roller 49 is rotated in accordance with the feeding, and the root vegetable is arranged so as to fall on the front part of the lateral feed roller 49. By rotating 49 and driving the lower conveyor 47, the root vegetables are dropped onto the side selection conveyor 50. A clutch lever 55 and a safety lever 56 for stopping only the sorting conveyor 50 are arranged at the rear of the sorting conveyor 50,
When the container is replaced or clogged, the clutch lever 55 is operated to prevent the sorting conveyor 50 from stopping and dropping the root vegetables into the field.
The safety lever 56 rotates to stop the engine E when the operator is caught when the machine moves backward.

The sorting conveyor 50 is a wide roller conveyor which is arranged in the left and right directions at the rear of the machine so as to remove the soil adhering to the root vegetables while feeding it sideways. A container placing table 51 is arranged below the terminal end of the sorting conveyor 50, the container placing table 51 is biased upward by a spring, and the empty container 10 is placed at an angle, and the container 10 is placed obliquely at the initial stage of storing root vegetables. Root vegetables in container 1
It is stored in 0 and is hard to be scratched. When the root vegetables are further stored, the container placing table 51 is lowered by its own weight against the spring and gradually becomes horizontal so that the containers can be stored until the container is full.

Container stands 52, 52 ... Are disposed on the side of the container mounting table 51 in the longitudinal direction, the front of the front column 4, and the side of the lower conveyor 47. These container stands 52, 52 ... The body side is pivotally supported so that it can be lifted and rotated to the body side for storage. And
An auxiliary container base 53 is foldably arranged in front of the auxiliary container base 52 on the side of the driver's seat 7. That is,
As shown in FIG. 4, the body side (main frame 1 side) of the container base 52 is pivotally supported by a stay 54, and an auxiliary container base 53 is pivotally supported at the front part of the container base 52. When the auxiliary container base 53 is extended, FIG.
As shown in FIG. 3, when the operator gets in and out of the driver's seat 7, it is an obstacle, so that the container 10 is placed by sticking out the container 10 while the operator is getting on and off. It is rotated and folded so that you can get on and off smoothly.

Referring to FIG. 5, the drive structure will be described. Three output pulleys are fixedly mounted on the output shaft of the engine E, and power from the engine E is transferred from the output pulley 29a on the output shaft to a belt and a clutch. Is transmitted to the mission case 61 via the transmission, the transmission is changed in speed by the mission case 61 to drive the crawler type traveling device 2, and the PT
It is transmitted to the drive pulley 64 via the one-way clutch 63 on the O shaft 62, and the clutch 6 is transmitted from the drive pulley 64.
The pull-out conveyor 30 and the pretreatment device are driven through 5. Further, the eccentric cam provided on the rotation fulcrum shaft 20 is rotated from the output pulley 29b on the output shaft of the engine E via the clutch 66 to vibrate the excavator. Further, from the output pulley 29c on the output shaft of the engine E, a belt, a pulley, a clutch 67
The lower conveyor 47, the lateral feed roller 49, and the sorting conveyor 50 are driven via the. However, the clutches 65 and 67 are interlocked.

In such a structure, the present invention allows the pull-out conveyor 30 to rotate laterally, and a belt or pulley forming the power transmission mechanism B is provided between the pull-out conveyor 30 and the engine E. It is provided for facilitating maintenance of these components. If the pull-out conveyor 30 is rotated as it is, the belt may be twisted or may come into contact with the engine cover 6. Therefore, the vertical rotation shaft 32 of the support 32 is rotated before the rotation operation.
After removing the belt from the pulley 69 arranged on b, open the engine cover 6 to the side as shown in FIG.
Position), the pull-out conveyor 30 can be rotated around the left-right rotation shaft 32a of the support 32, the power transmission mechanism B is opened, and maintenance can be easily performed from the inside of the pull-out conveyor 30 and the pretreatment device. become able to.

When the hydraulic cylinder 24 of this root vegetable harvester is reduced to lower the pulling conveyor 30 and the digging device to perform the harvesting work while advancing, the pulling device 41 spreads the root vegetables laterally and collapses the leaves. The root part is lifted upward in the direction of travel, and the root part of the root vegetable is lifted upward in the left-right direction by the raising device 40. At the rear part, the root part is lifted from below the root part by the swinging of the subsoiler 9, and the star wheel 37 causes the root vegetable part. The leaves are pulled to the center and scraped, and the leaves are sandwiched by the belt of the pulling conveyor 30 and pulled out while being conveyed backward.

Then, at the rear of the pull-out conveyor 30, the horizontal conveyor 45 takes over, the upper part (neck) of the root is positioned, the leaves are cut off by the cutter 46, and the root falls on the lower conveyor 47. The leaves are transported backwards and fall into the field scene. And the lower conveyor 47
Is conveyed to the rear by the horizontal feed roller 49 during this conveyance to the sorting conveyor 50, and the soil adhered during the transportation of the sorting conveyor 50 is dropped,
Small root vegetables are removed and sorted by the operator and stored in the container 10 from the end of the sorting conveyor 50.

[0024]

Since the present invention is constructed as described above,
It has the following effects. That is, since the pull-out conveyor can be rotated to the side, the power transmission mechanism portion from the engine to the working portion such as the conveyor is opened without removing the pull-out conveyor, which facilitates maintenance. Maintenance inside the conveyor became easier, and the maintenance work time was shortened and labor was reduced.

[Brief description of drawings]

FIG. 1 is an overall side view of a self-propelled root vegetable harvester of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a rear view of the engine mounting portion.

FIG. 4 is a perspective view of an auxiliary container base.

FIG. 5 is a skeleton diagram of a power transmission mechanism.

[Explanation of symbols]

 A driving operation unit B power transmission mechanism 1 main frame 7 driver's seat 9 subsoiler 10 container 29 output pulley 30 extraction conveyor 32 support 32a left and right rotating shaft 40 raising device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Keita Kamikubo 1-32, Chaya-cho, Kita-ku, Osaka-shi, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (72) Tomoyoshi Hirose 1-chaya-cho, Kita-ku, Osaka-shi, Osaka No. 32 in Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Shigeki Murata 1-32, Chayamachi, Kita-ku, Osaka-shi, Osaka Prefecture No. 32 In Yanmar Agricultural Machinery Co., Ltd. (72) Osamu Kawamura 428 Enami, Okayama Seirei Industrial Stock Association In-house (72) Inventor Yoshitaka Nagasaki 428 Enami, Okayama-shi Seirei Industrial Co., Ltd.In-house (72) Inventor Takeshi Kobashi 684 Nakamata, Okayama-shi, Okayama Prefecture In-house Kobashi Industrial Co., Ltd. (72) In-house company Toyonori Sato Okayama-shi, Okayama 684 Nakamata Kobashi Kogyo Co., Ltd. (72) Inventor Toru Abe 684 Nakamaki Kobashi Kogyo Co., Ltd. Okayama City, Okayama Prefecture

Claims (1)

[Claims] 1. A storage for arranging a driving operation unit and an engine room on one side of the traveling machine body, and a pulling conveyor and a digging device on the other side of the traveling machine body so that they can be moved up and down respectively, and selecting root vegetables at the rear of the machine body and storing them in a container. In a self-propelled root crop harvester in which the parts are arranged, a power transmission mechanism is arranged in the space between the engine and the extraction conveyor, and a horizontal rotation shaft is arranged at the up-down rotation base of the extraction conveyor, and the extraction conveyor A self-propelled root vegetable harvester characterized by being configured so that it can be rotated laterally.