JP7174489B2 - combine - Google Patents

Description

The present invention relates to combine harvesters.

For example, as shown in Patent Literature 1, there is a combine provided with three conveying devices for conveying two rows of harvested crops out of six rows of harvested crops to a rear junction point.

As shown in Patent Document 2, an auxiliary conveying device that collects harvested grain culms and conveys them backward, and a vertical conveying device that conveys the harvested grain culms received from the auxiliary conveying device to a threshing feed chain of a threshing device are provided. In some cases, a plant base sensor for detecting the presence or absence of culms in the vertical conveying device is provided at the upper end of the conveying device in the vertical conveying device.

JP 2012-29698 A JP-A-2005-185228

For example, in rice farming, a field management system has been proposed for improving yields by collecting and accumulating various types of field work data. In the field management system, one field is divided into many areas, and by collecting and accumulating field work data such as harvest data (yield amount and quality) by combine harvesters corresponding to each area of the field, it is possible to: Improvements such as seedling planting, sowing, tillage, etc. are carried out annually.

A reaping unit is installed in the front part of the machine body and has a cutting width that can reap crops with 5 or more planted rows. In a combine provided with three or more conveying devices that convey to a rearward merging point, if a conventional technique related to detecting the presence of crops is adopted, the presence of crops in the conveying path after the merging point is detected. Since it is detected by the crop detection sensor, when the crop is cut in a multiple-row cutting mode, the detection result of the crop detection sensor indicates which range of the cutting part in the cutting width direction the cut crop has entered. It is not possible to obtain information on whether In addition, the crop detection sensor will operate in the same way when cutting only one end of the cutting width in the cutting width direction and when cutting only the other end of the cutting width in the cutting direction of the cutting unit. Since it acts as a detection, it is the same.
In other words, it is impossible to collect the harvest data corresponding to each area into which the field is divided into a large number of areas, and it is not possible to obtain a good field management system.

The present invention is equipped with a reaping unit having a cutting width capable of reaping five or more rows, and three or more conveying devices for conveying the crops reaping by the reaping unit to a rear confluence point. Information that allows you to know what area of the cutting part in the cutting width direction the cut crop is invading, even when cutting only a part of the cutting part in the cutting width direction. We provide a combine that gives you

The combine according to the invention is
A reaping unit provided in the front part of the machine body and having a cutting width capable of reaping crops with 5 or more planted rows; three or more conveying devices for conveying crops to a rear confluence point; a crop detection sensor provided in each conveying route of each of the three or more conveying devices to detect the presence of crops in the conveying route; a cutting condition detection unit that calculates, based on the detection result of the sensor, in which range of the cutting unit the cut crop is intruding in the cutting width direction, and two or more of the crop detection units; When the sensor detects the crop, the crop detection sensor located between the crop detection sensor detecting the crop and the crop detection sensor detecting the crop does not detect the crop. At this time, the harvesting condition detection unit treats the detection result of the crop detection sensor as abnormal data .

According to this configuration, the harvested crop is calculated by the harvesting condition detecting unit based on the detection result of the crop detecting sensor provided on the conveying path of each of the three or more conveying devices, and the harvested crop is located in the cutting width direction of the harvesting unit. Since it is calculated which range the crop is encroaching on, even when cutting multiple rows or cutting only a part of the cutting section, the cut crop will be in the cutting width direction of the cutting section. You can get information to know which range of the area you are invading.
According to this configuration, when an abnormality such as a failure of the crop detection sensor occurs, the occurrence of the abnormality can be immediately detected by handling the data by the reaping condition detection unit. can be taken to

In the present invention, it is preferable that the crop detection sensor is a swing bar that is brought into a detection state by being swung in contact with the crop.

According to this configuration, since the crop detection sensor can be obtained with a simple structure, it is possible to inexpensively obtain information about the invasion range of crops in the reaping section.

In the present invention, the conveying device includes a stem-side conveying section that clamps and conveys the stem-side portion of the harvested crop, and a stem-side conveying portion that is provided above the stem-side conveying portion to hold and convey the tip-side portion of the harvested crop. and a tip-side conveying portion, and the rocking bar is preferably provided at a location corresponding to the front portion of the conveying device in a plan view.

According to this configuration, the swing bar acts on the harvested crops before the distance conveyed by the root-side conveying unit and the tip-side conveying unit is increased, so that detection results can be obtained early.

In the present invention, it is preferable that the rocking bar is provided between the stem-side conveying section and the tip-side conveying section in the vertical direction.

According to this configuration, it is difficult for mud, etc., to adhere to the swing bar from the ground, and for cut leaves, etc., to adhere to the swing bar from above. Malfunctions can be easily avoided.

In the present invention, it is preferable that a lower cover covering the tip-side conveying section from below is provided, and the rocking bar is supported on the back side of the lower cover.

According to this configuration, since the lower cover is used as a support member for the swing bar, there is no need to provide a special support member for exclusive use, and the swing bar can be easily installed.

In the present invention, when the crop detection sensor in any one of the three or more conveying devices detects crops , automatic control of a threshing device for threshing the harvested crops is started. It is preferable to have

According to this configuration, the crop detection sensor that detects harvested crops ahead of the threshing device starts the automatic control of the threshing device, so that the automatic control of the threshing device is performed without timing delay.

It is a left view which shows the whole combine. It is a top view which shows a reaping part and a conveying apparatus. It is a front view which shows a crop detection sensor. 3 is a block diagram of a control system; FIG. FIG. 5 is an explanatory diagram showing calculation results by a harvesting state detection unit; FIG. 5 is an explanatory diagram showing calculation results by a harvesting state detection unit; FIG. 5 is an explanatory diagram showing calculation results by a harvesting state detection unit; FIG. 5 is an explanatory diagram showing calculation results by a harvesting state detection unit; FIG. 5 is an explanatory diagram showing calculation results by a harvesting state detection unit; FIG. 5 is an explanatory diagram showing calculation results by a harvesting state detection unit; FIG. 5 is an explanatory diagram showing abnormality detection by a harvesting state detection unit; FIG. 5 is an explanatory diagram showing a reaping mode and a result of detection by a reaping condition detection unit; FIG. 5 is an explanatory diagram showing a reaping mode and a result of detection by a reaping condition detection unit; FIG. 5 is an explanatory diagram showing a reaping mode and a result of detection by a reaping condition detection unit; FIG. 5 is an explanatory diagram showing a reaping mode and a result of detection by a reaping condition detection unit; FIG. 5 is an explanatory diagram showing a reaping mode and a result of detection by a reaping condition detection unit; FIG. 5 is an explanatory diagram showing a reaping mode and a result of detection by a reaping condition detection unit; FIG. 5 is an explanatory diagram showing a reaping mode and a result of detection by a reaping condition detection unit; FIG. 5 is an explanatory diagram showing a reaping mode and a result of detection by a reaping condition detection unit; It is a top view which shows a central conveying apparatus. FIG. 4 is a cross-sectional view showing a central conveying device;

An embodiment, which is an example of the present invention, will be described below with reference to the drawings.
In the following description, regarding the machine of the combine harvester, the direction of arrow F shown in FIG. The direction is defined as "bottom", the direction toward the front side of the paper is "left", and the direction toward the back of the page is "right".

As shown in FIG. 1, the combine has a machine body 1 constructed by combining bar-shaped frame members and the like, and a pair of left and right crawler-type traveling devices 2 mounted on the lower part of the machine body 1. A driving part 3 is formed at one lateral end of the front part of the machine body 1 . The operation part 3 is provided with a cabin 4 covering an operation space. A reaping and conveying device 6 is provided in the front part of the machine body 1 . The reaping and conveying device 6 is supported on the lateral side of the front portion of the machine body 1 on the side opposite to the operating section side so that it can be swung up and down between a lowering working state and a rising non-working state. A threshing device 7 and a grain tank 8 are provided side by side in the rear part of the machine body 1.例文帳に追加A grain discharging device 9 is connected to the rear end of the grain tank 8 .

In this combine harvester, crops such as rice and wheat can be harvested by lowering the reaping and conveying device 6 to a lowered working state and running the machine body 1 in this state.
That is, in the harvesting and conveying device 6, the planting stem culms positioned in front of the machine body 1 are harvested by the harvesting section 6A, and the harvested stem culms are conveyed to the front portion of the threshing device 7 by the conveying section 6B. In the threshing device 7, the base side of the harvested stem culm from the transportation device 11 (see FIG. 2) after merging with the transportation unit 6B is pinched and transported toward the rear of the threshing device 7 by the threshing feed chain 12, and the tip of the harvested stem culm is obtained. The grains are threshed by a rotating threshing cylinder (not shown) inserted into a threshing chamber (not shown), and the grains after threshing are separated from dust. The sorted grains are conveyed to the grain tank 8 by the grain lifting device 5 and stored. Grains stored in the grain tank 8 are discharged by the grain discharging device 9 .

[Regarding the configuration of the reaping and conveying device]
As shown in FIGS. 1 and 2, the reaping and conveying device 6 includes a reaping part frame 14 extending forward from the front part of the machine body 1 in a downwardly forward posture and capable of swinging up and down, and a tip of the reaping part frame 14 . a reaping part 6A for reaping planting stem culms, a reaping part 6A provided over the rear part of the reaping part 6A and the front part of the threshing device 7, and transporting the reaping stem culms from the reaping part 6A rearward for threshing; A conveying section 6B for feeding to the starting end of the feed chain 12 is provided.

[Regarding the configuration of the reaping part]
As shown in FIGS. 1 and 2, the reaping part 6A has seven branching rods 15 extending forward from the tip of the reaping part frame 14. As shown in FIGS. The seven branch rods 15 are arranged side by side in the width direction of the body 1 at intervals. Between adjacent branching rods 15, an introduction path R is formed for introducing the planting stem culm of one planting row to the raising device 16 and the reaping device 10. As shown in FIG. As a whole, six introduction paths R are formed, making it possible to cut planting stalks of six planting rows.

A divider 18 is supported at the tip of each branching rod 15 . The distance between the left end divider 18 and the right end divider 18 is the cutting width W of the cutting portion 6A. At the rear side of the divider 18, six triggering devices 16 are arranged in the cutting width direction (horizontal direction of the machine body 1). The six triggering devices 16 are arranged in the lateral width direction of the fuselage 1 in such a state that one triggering device 16 corresponds to one introduction path R. A clipper-type harvesting device 10 is provided behind the lower portion of the pulling device 16 . The reaping device 10 is provided in a state extending over the branching rods 15 at both lateral ends, and can act on the planting stalks introduced into the six introduction paths R. A raking belt 21 and raking wheels 22, 24, and 26 are provided above the reaping device 10 at portions corresponding to the six introduction paths R, respectively.

In the reaping part 6A, planting stems and culms can be reaped in a 6-row reaping mode.
In the following description, regarding the six introduction paths R, the first introduction path R counted from the right end is referred to as the first introduction path R1, the second introduction path R counted from the right end is referred to as the second introduction path R2, The third lead-in path R counting from the right end is referred to as the third lead-in path R3, the fourth lead-in path R counted from the right end is referred to as the fourth lead-in path R4, and the fifth lead-in path R counted from the right end is referred to as the fourth lead-in path R. 5 lead-in path R5, and the sixth lead-in path R counted from the right end is referred to as a sixth lead-in path R6.

In the case of 6-row cutting, the planting stem culm of the first planting row from the right end of the 6 planting rows is divided into the first introduction path R1 by the dividers 18 positioned on both sides of the entrance of the first introduction path R1. You will be guided to R1. The planting stem culm guided to the first introduction path R1 is lifted by the raising device 16 corresponding to the first introduction path R1, and the raking belt 21 and the raking wheel 22 located behind the raising device 16. , and is reaped by the reaper 10 . The planting stem culm of the second planting row from the right end of the six planting rows is guided to the second introduction route R2 by the dividers 18 located on both lateral sides of the entrance of the second introduction route R2. The planting stem culm guided to the second introduction path R2 is pulled up by the raising device 16 corresponding to the second introduction path R2, and the raking belt 21 and the raking wheel 22 located behind the raising device 16. , and is reaped by the reaper 10 . Two streaks of stalk culms, i.e., the stalk culm introduced into the first introduction path R1 and cut and the stalk culm introduced into the second introduction path R2 and cut, are the two stalk culms. It is scraped rearward from the reaping device 10 by two rake wheels 22 against each other.

The planting stem culm of the third planting row from the right end of the six planting rows is guided to the third introduction route R3 by the dividers 18 located on both lateral sides of the entrance of the third introduction route R3. The planting stem culm guided to the third introduction path R3 is pulled up by the raising device 16 corresponding to the third introduction path R3, and the raking belt 21 and the raking wheel 24 located behind the raising device 16. , and is reaped by the reaper 10 . The planting stem culm of the fourth planting row from the right end of the six planting rows is guided to the fourth introduction route R4 by the dividers 18 located on both lateral sides of the entrance of the fourth introduction route R4. The planting stem culm guided to the fourth introduction path R4 is pulled up by the raising device 16 corresponding to the fourth introduction path R4, and the raking belt 21 and the raking wheel 24 located behind the raising device 16. , and is reaped by the reaper 10 . Two streaks of stalk culms, the cut stalk culm introduced into the third introduction path R3 and the cut stalk culm introduced into the fourth introduction path R4, are the stalk culms of these two stalks. It is scraped rearwardly out of the reaping device 10 by two rake wheels 24 against each other.

The planting stem culm of the fifth planting row from the right end of the six planting rows is guided to the fifth introduction route R5 by the dividers 18 located on both lateral sides of the entrance of the fifth introduction route R5. The planting stem culm guided to the fifth introduction path R5 is pulled up by the raising device 16 corresponding to the fifth introduction path R5, and the raking belt 21 and the raking wheel 26 located behind the raising device 16. , and is reaped by the reaper 10 . The planting stem culm of the sixth planting row from the right end of the six planting rows is guided to the sixth introduction route R6 by the dividers 18 positioned on both lateral sides of the entrance of the sixth introduction route R6. The planting stem culm guided to the sixth introduction path R6 is lifted by the raising device 16 corresponding to the sixth introduction path R6, and the raking belt 21 and the raking wheel 26 located behind the raising device 16. , and is reaped by the reaper 10 . Two streaks of stalk culms introduced into the fifth introduction path R5 and cut off and the cut stalk culms of the cut stalk culms introduced into the sixth introduction path R6 and cut are the two cut stalk culms. It is scraped rearwardly from the reaping device 10 by two rake wheels 26 against each other.

[Regarding the structure of the transport part]
As shown in FIG. 2, the conveying section 6B includes three conveying devices 19 arranged in the cutting width direction of the reaping section 6A and a post-merging conveying device 11 provided behind the three conveying devices 19. . Specifically, the three conveying devices 19 are arranged side by side in the cutting width direction at a portion on the upper side of the conveying direction of the conveying device 19 . The three conveying devices 19 are provided above the harvesting device 10 and over a junction 20 set behind the harvesting device 10 . The post-confluence conveying device 11 is provided over the confluence point 20 and the front portion of the threshing device 7 .

The rightmost conveying device 19R of the three conveying devices 19 is, as shown in FIG. It is provided over the upper part and the confluence point 20 .

Specifically, as shown in FIG. 2, the right end conveying device 19R includes a pair of left and right raking wheels 22 provided above the reaping device 10, and the left and right raking wheels 22 are connected to the reaping device 10. The base-side conveying section 23a for pinching and conveying the base-side portion of the harvested stem culm scraped backward from the stalk to the confluence point 20 by an endless rotating chain with projections and a pinching rail, and left and right raking wheels 22. A tip-side engaging and conveying part 23b for engaging and conveying the tip-side portion of the reaping stalk culm scraped backward from the reaping device 10 to the junction 20 is provided. The tip-side locking/conveying portion 23b engages the tip-side portion of the harvested stem culm scraped backward by the raking wheel 22 to near the front of the threshing feed chain 12 by means of an endless rotating chain provided with a locking/conveying arm. It is composed of a starting end side portion from above the raking wheel 22 of the tip side conveying device 23 for non-conveying to the merging point 20 .

The central conveying device 19C of the three conveying devices 19 is, as shown in FIG. It is provided over the upper part and the confluence point 20 .

Specifically, as shown in FIG. 2, the central conveying device 19C includes a pair of left and right raking wheels 24 provided above the reaping device 10, and the left and right raking wheels 24 are connected to the reaping device 10. A starting end side conveying section 25 that conveys the cut stalk culms that have been scraped rearward from the rightmost conveying device 19R to a midway point of the right end conveying device 19R, and a terminal side conveying section that conveys the cut stalk culms conveyed by the starting end side conveying section 25 to the merging point 20. and As shown in FIG. 3, the start-side conveying section 25 conveys the base side portion of the harvested stalk that has been raked rearward by the raking wheel 24 while clamping and conveying it with an endless rotary chain with projections and a nipping rail. The pedestal side conveying part 25a (see FIG. 3) and the tip side portion of the cut stalk scraped backward by the raking wheel 24 are locked and conveyed by an endless rotating chain provided with a locking conveying arm. and a side transport portion 25b (see FIG. 3). The trailing end transport section is configured by the trailing end portion of the transport device 19R on the right end.

The leftmost conveying device 19L of the three conveying devices 19 is, as shown in FIG. It is provided over the upper part and the confluence point 20 .

Specifically, the left end conveying device 19L includes a pair of left and right raking wheels 26 provided above the reaping device 10 and a reaping stalk that the left and right raking wheels 26 rake backward from the reaping device 10. A stock base side conveying part 27a for clamping and conveying the base side portion of the culm to a junction 20 by an endless rotating chain with projections and a clamping rail, and the tip of the cut stem culm raking forward by the left and right raking wheels 26. A tip-side conveying portion 27b for locking and conveying the side portion to the merging point 20 by an endless rotating chain provided with a locking conveying arm.

As shown in FIG. 2, the post-merging conveying device 11 moves the base side portion of the harvested stalk conveyed to the merging point 20 forward of the threshing feed chain 12 by means of an endless rotating chain with protrusions and a clamping rail. and a threshing feed chain by means of an endless rotary chain with projections and a clamping rail for the plant base side portion of the reaping stem culm conveyed by the stock base conveying part 11a on the starting end side. 12, and a tip-side locking portion that holds and conveys the tip side portion of the harvested stem culm transported to the merging point 20 near the starting end of the threshing feed chain 12. a transport section; The tip-side locking conveying portion is configured by a portion of the tip-side conveying device 23 that extends from the confluence point 20 to the terminating portion of the tip-side conveying device 23 .

[Detection of harvesting status]
As shown in FIG. 2, a crop detection sensor S1 (hereinafter referred to as a right crop detection sensor S1) is provided on the transport path 23R of the rightmost transport device 19R. The presence of stalks in the conveying route 23R is detected by the right crop detection sensor S1. The right crop detection sensor S1 is provided downstream of the raking wheel 22 in the conveying direction.

A crop detection sensor S2 (hereinafter referred to as medium crop detection sensor S2) is provided on the transport path 25R of the central transport device 19C. The presence of stalks in the conveying route 25R is detected by the right crop detection sensor S1. More specifically, the intermediate crop detection sensor S2 is provided in the transport path in the starting end transport section 25 of the central transport device 19C.

A crop detection sensor S3 (hereinafter referred to as a left crop detection sensor S3) is provided on the conveying path 27R of the leftmost conveying device 19L. The presence of the stem culm on the conveying path 27R is detected by the left crop detection sensor S3. The left crop detection sensor S3 is provided downstream of the raking wheel 26 in the conveying direction.

As shown in FIG. 3, the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3 are connected to a detection unit 28 for extracting detection information from the detection sensors, with the shaft center P of the support shaft 29 as the swing fulcrum. It consists of a rocking bar that is rockably supported on the In this embodiment, the detection unit 28 is configured by a detection switch. In the non-detection state, the swing bar is supported by the detector 28 in such a manner that the free end side portions of the swing bar enter the conveying paths 23R, 25R, and 27R. The rocking bar comes into a state of detecting the existence of the stem culms by contacting the harvested stem culms conveyed on the transportation paths 23R, 25R, and 27R and being oscillated by the harvested stem culms. As shown in FIG. 3, the swing bar is positioned closer to the part of the conveying paths 23R, 25R, and 27R through which the base side of the cut stalk passes than the part through which the tip side of the culm of the cut stalk passes. are placed.
The swing operation by the stalk culm of the swing bar is performed by the plant base side portion of the reaping stalk culm, which has stronger resistance to the operation reaction force than the tip portion.

As shown in FIG. 4, the detection units 28 of the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3 are linked to the control device 30. As shown in FIG. The control device 30 is configured using a microcomputer, and includes a harvesting condition detection section 31 , a first data storage section 35 , a second data storage section 36 and a display control section 33 . A harvest data collection device 32 and a display device 34 are linked to the control device 30 .

In each of the right crop detection sensor S1, the middle crop detection sensor S2 and the left crop detection sensor S3, the detection state and the non-detection state of the right crop detection sensor S1, the middle crop detection sensor S2 and the left crop detection sensor S3 are detected by the detection unit 28. Detected by the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3, the detection unit 28 transmits the detection information to the control device 30. FIG.

The first data storage unit 35 is preliminarily input with data for calculating the number of rows to be cut based on the information detected by the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3. The first data storage unit 35 is also pre-input with data for calculating the stem-culm invasion range corresponding to the information detected by the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3. . In the second data storage unit 36, data for calculating abnormality based on detection information by the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3 are input in advance.

When the detection information of the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3 is input to the control device 30, the reaping condition detection unit 31 detects the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S2. Based on the information detected by the crop detection sensor S3 and the data stored in the first data storage unit 35, the number of rows that have been harvested (the number of harvested rows) is calculated, and It is calculated which range in the cutting width direction of the reaping part 6A is entered. When the number of cut streaks and the penetration range of the cut stem culm are calculated, the calculated number of cut streaks and the calculated penetration range are output to the harvest data collecting device 32 . The harvest data collection device 32 is based on classification data obtained by dividing the field into a large number of areas, calculation results by the harvesting status detection unit 31, detection results of the amount of harvested grains, detection results of the quality of the harvested grains, and the like. Next, harvest data such as yield and quality corresponding to each area of the field are collected. When the number of cut streaks and the penetration range of the cut stalk are calculated, the display control unit 33 operates the display device 34 based on the calculation results, and the calculated number of cut streaks and the calculated penetration range are displayed. It is displayed on the display device 34 .

The calculation of the number of reaping rows by the reaping condition detection unit 31 and the calculation of the penetration range of reaping stalks by the reaping condition detection unit 31 are performed as shown in FIGS. 5 to 10 . A1 to A6 shown in FIGS. 5 to 10 indicate the invasion range of the cut culms. The range A1 corresponds to the first introduction path R1, the range A2 corresponds to the second introduction path R2, the range A3 corresponds to the third introduction path R3, and the range A4 corresponds to the fourth introduction path R4, the range A5 corresponds to the fifth introduction path R5, and the range A6 corresponds to the sixth introduction path R6. 5 to 10, the range marked with a circle is calculated as a range in which cut culms have invaded, and the range marked with an x is calculated as a range in which cut culms do not invade. It is a thing.

As shown in FIG. 5, when the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3 are in the detection state (ON), it is calculated that the number of rows being cut is 6. be done. Also, the intrusion range of the cut stalk is calculated to be six ranges from range A1 to range A6.

As shown in FIG. 6, when the right crop detection sensor S1 and the middle crop detection sensor S2 are in the detection state (ON) and the left crop detection sensor S3 is in the non-detection state (OFF), harvesting is being performed. The number of cuts is calculated to be 4. Also, the intrusion range of the cut stalk is calculated to be four ranges from range A1 to range A4.

As shown in FIG. 7, when the right crop detection sensor S1 is in the detection state (ON) and the middle crop detection sensor S2 and the left crop detection sensor S3 are in the non-detection state (OFF), harvesting is being performed. The number of cuts is calculated to be 2. In addition, the intrusion range of the cut culms is calculated to be two ranges, range A1 and range A2.

As shown in FIG. 8, when the right crop detection sensor S1 is in the non-detection state (OFF) and the middle crop detection sensor S2 and the left crop detection sensor S3 are in the detection state (ON), harvesting is being performed. The number of cuts is calculated to be 4. In addition, the intrusion range of the cut stalk is calculated to be four ranges from range A3 to range A6.

As shown in FIG. 9, when the right crop detection sensor S1 and the middle crop detection sensor S2 are in a non-detection state (OFF) and the left crop detection sensor S3 is in a detection state (ON), harvesting is being performed. The number of cuts is calculated to be 2. Also, the intrusion range of the clipped stem culm is calculated as two ranges, ranges A5 and A6.

As shown in FIG. 10, when the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3 are in the non-detection state, it is calculated that the number of rows being cut is zero. . Also, the intrusion range of the stalk is calculated to be nil.

The reaping condition detection unit 31 is configured to handle the detection results as abnormal data depending on the detection results even if the detection results of the right crop detection sensor S1, middle crop detection sensor S2, and left crop detection sensor S3 are input. there is

That is, when the harvesting operation of introducing planting stalks into the first introduction path R1, the second introduction path R2, the fifth introduction path R5 and the sixth introduction path R6 is performed, the third introduction path R3 and the fourth introduction path R3 are used. The planting stem culm is also introduced into the introduction path R4. Harvesting work that does not introduce planting stem culms into the third introduction path R3 and the fourth introduction path R4 located between the second introduction path R2 and the fifth introduction path R5 is not performed. As shown in FIG. 11, when the right crop detection sensor S1 and the left crop detection sensor S3 are detecting crops (ON), the center sensor located between the left crop detection sensor S3 and the right crop detection sensor S1 When the crop detection sensor S2 is not detecting crops (OFF), the detection information of the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor S3, and the data stored in the second data storage unit 36 , the harvesting condition detection unit 31 determines that the detection result of the middle crop detection sensor S2 is abnormal data.

When it is determined that the detection result of the intermediate crop detection sensor S2 is abnormal data, the display control unit 33 operates the display device 34 based on this determination result to display that the intermediate crop detection sensor S2 is out of order. Displayed on device 34 .

Harvesting operations may be performed in a harvesting configuration as shown in FIGS. 12-19. In each reaping mode, the reaping condition detection unit 31 detects the number of reaping rows based on the detection information from the left crop detection sensor S3, the middle crop detection sensor S2, and the right crop detection sensor S1 as follows. 12 to 19, the range marked with ◯ is the range in which the cut stalk culm intrudes into the cutting width, and the range marked with X is the range in which the cut stalk culm does not invade.

As shown in FIG. 12, when the harvesting operation is performed in a harvesting mode in which the stem culm enters A1, A2, A5 and A6 among the penetration ranges A1 to A6, the right crop detection sensor S1 and the left crop detection sensor S1 are used. The sensor S3 is in the detection state (ON), the middle crop detection sensor S2 is in the non-detection state (OFF), and it is detected that the number of harvested crops is four.

As shown in FIG. 13, when the harvesting operation is performed in the form of stalk intrusion into A1 to A5 of the intrusion ranges A1 to A6, the right crop detection sensor S1, the middle crop detection sensor S2, and the left crop detection sensor The sensor S3 is put into the detection state (ON), and it is detected that the number of cut rows is 5 or 6.

As shown in FIG. 14, when a harvesting operation is performed in which the stem culm enters A1, A2, and A3 among the penetration ranges A1 to A6, the right crop detection sensor S1 and the middle crop detection sensor S2 detect it. state (ON), the left crop detection sensor S3 becomes non-detection state (OFF), and it is detected that the number of cut rows is 3 or 4.

As shown in FIG. 15, when the harvesting operation is performed in a form in which the stem culm enters only A1 of the penetration ranges A1 to A6, the right crop detection sensor S1 is in the detection state (ON), and the middle crop is The detection sensor S2 and the left crop detection sensor S3 are in a non-detection state (OFF), and it is detected that the number of harvested crops is one or two.

As shown in FIG. 16, when a harvesting operation is performed in which the stem culm enters A4, A5 and A6 out of the penetration ranges A1 to A6, the right crop detection sensor S1 is in the non-detection state (OFF). Then, the middle crop detection sensor S2 and the left crop detection sensor S3 are in the detection state (ON), and it is detected that the number of cut rows is 3 or 4.

As shown in FIG. 17, when the harvesting operation is performed in a reaping mode in which the stem culm enters only A6 of the penetration ranges A1 to A6, the right crop detection sensor S1 and the middle crop detection sensor S2 are in a non-detection state ( OFF), the left crop detection sensor S3 is in the detection state (ON), and it is detected that the number of harvested rows is one or two.

As shown in FIG. 18, when a harvesting operation is performed in which the stem culm enters A1, A2 and A6 among the penetration ranges A1 to A6, the right crop detection sensor S1 and the left crop detection sensor S3 detect state (ON), medium crop detection sensor S2 becomes non-detection state (ON), and it is detected that the number of cut rows is 3 or 4.

As shown in FIG. 19, when the harvesting operation is performed in a harvesting mode in which the stem culm enters A1, A5 and A6 among the penetration ranges A1 to A6, the right crop detection sensor S1 and the left crop detection sensor S3 detect state (ON), medium crop detection sensor S2 becomes non-detection state (ON), and it is detected that the number of cut rows is 3 or 4.

As shown in FIGS. 13 to 19, even if only an indeterminate number of streaks can be detected, harvest data can be collected by being able to roughly detect the penetration range of stem culms. In the case of detecting the correct number of cut rows while detecting the penetration range of the stem culm, in addition to providing the right crop detection sensor S1, the middle crop detection sensor S2 and the left crop detection sensor S3, for example, between all the dividers This is made possible by providing a crop detection sensor in the

[Structure of Central Conveying Device]
As shown in FIG. 2, the central conveying device 19C comprises a pair of right and left raking wheels 24 provided above the reaping device 10, and a right end conveying the cut stalks from the right and left raking wheels 24. A starting end side conveying section 25 for conveying to an intermediate point of the device 19R and a terminal side conveying section for conveying the harvested stalks from the starting end side conveying section 25 to the merging point 20 are provided. The start-end-side conveying unit 25 includes a stock base-side conveying unit 25a that clamps and conveys the stem base side portion of the cut stalk from the left and right rake wheels 24, and the tip of the cut stalk from the left and right rake wheels 24. A tip-side conveying portion 25b for locking and conveying the side portion is provided. The tip side conveying portion 25b is provided above the stem side conveying portion 25a. The trailing end transport section is configured by the trailing end portion of the transport device 19R on the right end.

As shown in FIGS. 3, 20 and 21, the base-side conveying section 25a clamps and conveys the base-side portion of the reaping stalk by an endless rotating chain 40 with projections and a clamping rail 41, and conveys it to the tip side. The portion 25b holds and conveys the tip side portion of the cut stalk by means of an endless rotating chain 43 provided with a holding and conveying arm 42 .

As shown in FIG. 21 , an upper cover 45 is provided above the tip-side transport section 25b to cover the tip-side transport section 25b from above. A lower cover 46 that covers the tip-side conveying portion 25b from below is provided between the tip-side conveying portion 25b and the stem-side conveying portion 25a. A tip-side guide 47 extends upward from the upper cover 45 .

[Configuration of Medium Crop Detection Sensor]
As shown in FIG. 21, the intermediate crop detection sensor S2 is supported via a support shaft 49 by a detection unit 48 that takes out detection information by the intermediate crop detection sensor S2, and the shaft center P1 of the support shaft 49 is used as a swing fulcrum. It consists of a rocking bar that can be rocked. As shown in FIG. 20, the rocking bar is provided at a location positioned in front of the starting end side transport section 25 of the transport device 19C in plan view. As shown in FIGS. 20 and 21, the rocking bar is provided between the root-side conveying section 25a and the tip-side conveying section 25b in the vertical direction. The swing bar is supported on the back side of the lower cover 46 as shown in FIG. Specifically, the detector 48 is supported by the sensor support 46a formed on the lower cover 46, and the swing bar is supported by the sensor support 46a of the lower cover 46 via the support shaft 49 and the detector 48. ing. Attachment of the detection portion 48 to the sensor support portion 46a is performed by connecting bolts.

[Configuration of automatic control of threshing device]
A control device for automatic control of the threshing device 7 is equipped. The control device has a sorting control unit that adjusts the opening of the chaff sieve leakage hole based on the detection result of the amount of processed material in the sorting unit, and also adjusts the air flow rate of the winnow that supplies the sorting air. are provided. A switch for outputting an on command for turning on automatic control and a turning off command for turning off automatic control, and a travel detection for detecting the on state and off state of a power transmission system that transmits power to the traveling device 2. A sensor, a reaping detection sensor that detects the on state and off state of the power transmission system that transmits power to the reaping and conveying device 6, and a threshing sensor that detects the on state and off state of the power transmission system that transmits power to the threshing device 7. A sensor is associated with the controller.

The sorting control section enters an ON state when an ON command is output from the selector switch.
The sorting control unit, which has entered the ON state, determines that the reaping unit 6A is reaping based on the information that the number of reaping threads has been detected by the reaping condition detection unit, and based on the information detected by the traveling detection sensor. Then, it is determined that the traveling device 2 is in the driving state, the reaping and conveying device 6 is determined to be in the driving state based on the information detected by the reaping detection sensor, and the threshing device 7 is in the driving state based on the information detected by the threshing detection sensor. By discriminating that it is, the control operation is started, the opening of the chaff sieve is adjusted, and the blowing amount of the winnow is adjusted.

That is, when an ON command is output from the selector switch, the automatic control of the threshing device 7 is turned ON. When automatic control of the threshing device 7 is on, the traveling device 2, the reaping and conveying device 6, and the threshing device 7 are in the driving state, and any one of the three conveying devices 19, 19L, 19C , 19R detects crops, the automatic control of the threshing device 7 is started, and the chaff sieve leakage hole adjustment and the wind rate adjustment of the winnow are performed. That is, as the amount of processing objects in the sorting section increases, the processing objects are more likely to leak from the chaff sieve. A hole adjustment is made. The air volume is adjusted so that the volume of sorting air supplied to the object to be processed increases as the volume of the object to be processed increases, and the volume of the sorting air supplied to the object to be processed decreases as the volume of the object to be processed decreases. . In this embodiment, the chaff sieve leakage hole adjustment and the fan air volume adjustment are performed.

[Another embodiment]
(1) In the above-described embodiment, an example is shown in which the reaping section 6A is configured to be capable of cutting 6 rows. good.

(2) In the above-described embodiment, an example in which three conveying devices to the junction 20 were provided was shown, but four or more may be provided.

(3) In the above-described embodiment, the crop detection sensor is a rocking bar, but it may be a non-contact crop detection sensor.

(4) In the above-described embodiment, the harvesting condition detection unit 31 is configured to handle the detection result of the crop detection sensor as abnormal data. can be anything.

The present invention can be applied to a combine harvester having not only 6 rows, but also 5 rows, 7 rows or more.

6A Reaping part 11 Post-confluence conveying device 19L Conveying device 19C Conveying device 19R Conveying device 20 Junction point 23R Conveyance route 25a Stock base side conveying unit 25b Tip side conveying unit 25R Conveyance route 27R Conveyance route 31 Reaping condition detection unit 46 Lower cover W Reaping Width S1 Crop detection sensor S2 Crop detection sensor S3 Crop detection sensor

Claims (6)

a reaping unit provided in the front part of the machine body and having a reaping width capable of reaping crops with 5 or more planted rows;
three or more conveying devices arranged side by side in the cutting width direction of the reaping unit and conveying the harvested crops harvested by the reaping unit to a rear junction point;
a crop detection sensor provided in each of the conveying paths of the three or more conveying devices and configured to detect the presence of crops in the conveying path;
a harvesting condition detection unit that calculates, based on the detection result of the crop detection sensor, the range of the harvested crop in the cutting width direction of the harvesting unit;
In a state in which two or more of the crop detection sensors are detecting the crop, the crop detection sensor positioned between the crop detection sensors detecting the crop and the crop detection sensors detecting the crop. is not detecting crops, the reaping condition detection unit treats the detection result of the crop detection sensor as abnormal data . 2. The combine according to claim 1, wherein the crop detection sensor is a swing bar that enters a detection state when the crop is swung in contact with the crop. The conveying device includes a stem-side conveying section that clamps and conveys the stem-side portion of the harvested crop, and a tip-side conveying section that is provided above the stem-side conveying section and holds and conveys the stem-side portion of the harvested crop. and, The combine according to claim 2, wherein the rocking bar is provided at a location corresponding to a front portion of the conveying device in plan view. The combine according to claim 3, wherein the rocking bar is provided between the stock base side conveying section and the tip side conveying section in the vertical direction. A lower cover covering the tip-side conveying unit from below is provided,
The combine according to claim 3 or 4, wherein said rocking bar is supported on the back side of said lower cover. 6. Automatic control of a threshing device for threshing the harvested crops is started when the crop detection sensor in any one of the three or more conveying devices detects crops. A combine according to any one of the preceding paragraphs.

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