JP2021023143A - Crop harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To harvest a crop to be planted in a field without lifting the multi-sheet even in a state where the multi-sheet is laid, while the harvesting section holds and transports the stem portion of the crop to the rear and upper part. Get a crop harvester that can work. A harvesting unit (5) has a sandwiching / conveying device (19) and a cutter (18). The sandwiching and transporting device 19 sandwiches and transports the stem portion of the crop to the rear and upper part. The cutter 18 cuts the stem of the crop at a position above the ground in front of and below the entrance 19a of the sandwiching and transporting device 19. [Selection diagram] Fig. 1

Description

The present invention relates to a crop harvester provided with a harvesting section for harvesting crops to be planted in a field.

In some of the above-mentioned harvesting machines, the harvesting section is provided with a sandwiching and transporting device for sandwiching and transporting the stem of the crop in the rear and upper directions. Examples of this type of crop harvester include a traveling type harvester shown in Patent Document 1. In the traveling type harvester shown in Patent Document 1, both endless belts are configured to sandwich and transport the stem portion rearward and upward.

JP-A-2002-272239

If a crop is pulled out from the field by pinching and transporting the stem as a pinching and transporting device that pinches and transports the stem, when trying to harvest crops cultivated with a multi-sheet, for example, edamame. , The multi-sheet is lifted by the root of the crop to be pulled out and entangled with the holding and transporting device, etc., and as a practical matter, the harvesting work cannot be performed.

The present invention provides a crop harvester capable of performing harvesting work even with the mulch sheet laid, while sandwiching and transporting the crops in the rear and upper directions.

The crop harvester according to the present invention
A harvesting section for harvesting the crops to be planted in the field is provided, and the harvesting section is provided with a sandwiching transport device for sandwiching and transporting the stems of the crops in the rear and upper directions, and in front of and below the entrance of the sandwiching and transporting device, on the ground. It has a cutter that cuts the stem of the crop at the upper part.

According to this configuration, since the stem portion in which the stem portion is cut by the cutter and the root portion is separated is sandwiched and transported by the sandwiching transport device, the root portion is left in the field and cannot be lifted. As a result, the harvesting work can be performed without lifting the mulch sheet even when the mulch sheet is still laid, while the crop is sandwiched and transported upward and backward.

In the present invention
It is preferable that the cutter is a disk-shaped cutter that can rotate around the axis of rotation in the vertical direction of the machine body.

According to this configuration, the stem can be cut smoothly with a cutter having a simple shape.

In the present invention
It is preferable that a hydraulic motor for driving the cutter is provided, and the cutter is supported by the output shaft of the hydraulic motor so as not to rotate relative to each other.

According to this configuration, a cutting device for cutting the stem can be obtained compactly.

In the present invention
A pair of left and right dividers located in front of the cutter are provided, and they are separately extended forward from both lateral sides of the holding and conveying device through the upper part of the cutter, and are arranged at intervals in the lateral direction of the machine body. It is preferable that the pair of left and right support frames are provided, and the pair of left and right dividers are separately supported by the front end portions of the pair of left and right support frames.

According to this configuration, when the stalk of the crop is cut by a cutter, and when the stalk is cut and the root is separated, the crop moves toward the sandwiching and transporting device. Since the portion above the cut portion is supported by the support frame, the crop with the cut stem is accepted by the sandwiching and transporting device in a state in which the posture is not easily disturbed.

It is a left side view which shows the whole edamame harvester. It is a top view which shows the whole of the edamame harvester. It is a top view which shows the front part of a harvesting part. It is a side view which shows the front part of a harvesting part. It is a front view which shows the support structure of a cutter. It is explanatory drawing of the harvest state of a crop.

Hereinafter, embodiments that are an example of the present invention will be described with reference to the drawings.
In the following description, with respect to the traveling aircraft of the edible bean harvester (an example of the "crop harvester"), the direction of the arrow F shown in FIGS. 1 and 2 is "front of the aircraft" and the direction of the arrow B is "rear of the aircraft". , The direction of the arrow U shown in FIG. 1 is "upward of the aircraft", the direction of the arrow D is "downward of the aircraft", the direction of the arrow L shown in FIG. 2 is "left of the aircraft", and the direction of the arrow R is "right of the aircraft". One ".

[Overall composition of edamame harvester]
As shown in FIG. 1, the traveling machine of the green soybean harvester includes a machine frame 1 formed by connecting a plurality of steel materials such as a square pipe material. A pair of left and right crawler type traveling devices 2 are mounted on the lower part of the fuselage frame 1. As shown in FIGS. 1 and 2, a driver unit 4 having a driver seat 3 is formed on the right lateral side portion of the front portion of the traveling machine body. A harvesting section 5 for harvesting green soybeans to be planted in the field is connected to the left lateral portion of the front portion of the traveling machine. The harvesting unit 5 is connected so as to be able to swing up and down in a descending working state and an ascending non-working state with the axial support shaft core P provided at the rear end of the harvesting unit 5 as a swinging fulcrum. There is. The harvesting unit 5 is moved up and down by the expansion and contraction operation of the elevating cylinder 6 connected to the intermediate portion of the harvesting unit 5. At the rear of the traveling machine, there are a pod-removing portion 7 for removing pods of green soybeans harvested by the harvesting portion 5, a pod portion obtained by the pod-removing portion 7, and a cut leaf generated in the pod-removing portion 7. A sorting unit 8 for sorting dust is formed. A collection unit 9 for collecting the pods selected by the selection unit 8 is provided on the right lateral side of the traveling machine body.

In the pod removal unit 7, the green soybeans transported in the vertical posture by the harvesting unit 5 are changed in the posture of the green soybeans in the sideways posture by the posture changing device 10. The stem portion of the green soybeans in the sideways posture is sandwiched and transported backward by the feed chain 11, and the portion of the stem portion having the pod portion is depoded by the depoding rotating body 12. The pod portion obtained by the pod removal process is received by the conveyor 13 and conveyed backward. The green soybeans that have been depoded are discharged from the depoding portion 7 by the feed chain 11 and discharged to the rear of the machine body. In the sorting unit 8, the pods conveyed by the conveyor 13 are disassembled from the conveyor 13 and fall from between the rotating body 14 and the lateral feed conveyor 15. Further, the pods and dust conveyed by the conveyor 13 are disentangled and processed by the rotating body 14, and the disassembled pods and dust fall onto the lateral feed conveyor 15. Sorting wind is sent from the wall insert 16 toward the falling path between the conveyor 13 and the rotating body 14 and toward the lateral feed conveyor 15, and the pods and dust are separated and processed, and the wind is sorted. It is sorted by such as. The pods obtained by the pod removal process and sorted from dust are conveyed to the collection unit 9 by the lateral feed conveyor 15. The pods collected by the collection unit 9 can be taken out to the front of the machine by the belt conveyor constituting the collection unit 9.

[About the harvesting department]
As shown in FIGS. 1 and 2, the harvesting unit 5 is provided with a pair of left and right dividers 17 provided at the front end of the harvesting unit 5, a cutter 18 provided behind the divider 17, and an upper rear portion of the cutter 18. It has a holding and transporting device 19.

As shown in FIGS. 3 and 4, the pair of left and right dividers 17 are separately supported by the front end portions of the pair of left and right support frames 20 extending in the front-rear direction of the machine body. As shown in FIGS. 3 and 4, the pair of left and right support frames 20 are separately extended forward from both lateral sides of the sandwiching and transporting device 19 through the upper part of the cutter 18. Specifically, as shown in FIGS. 3 and 4, the support frame 20 extends from the frame 19b of the sandwiching and conveying device 19. The pair of left and right support frames 20 are arranged at intervals in the left-right direction of the machine body. The distance between the pair of left and right support frames 20 is a distance that allows the edamame to pass through.

As shown in FIGS. 4 and 5, the cutter 18 is composed of a disk-shaped cutter, and is provided below the front of the inlet 19a of the sandwiching and transporting device 19. The cutter 18 is rotatably supported by the output shaft 21a of the hydraulic motor 21. The hydraulic motor 21 is provided via a first motor support member 22 extending downward from each of the pair of left and right support frames 20, and a second motor support member 22a supported below the left and right first motor support members 22. It is supported by the support frame 20. The hydraulic motor 21 is supported in a state where the output shaft 21a faces up and down in the lowering work state of the harvesting unit 5. In the lowering work state of the harvesting unit 5, the cutter 18 is driven in a state of rotating around the axis Y of the output shaft 21a in the vertical direction of the machine body in the front lower part of the inlet 19a of the sandwiching and transporting device 19, and the divider 17 is driven. Cut the edamame stalks from above the ground.

As shown in FIG. 2, the pinch transfer device 19 has a pair of left and right endless rotating belts 23. Each of the pair of left and right endless rotating belts 23 can be rotated and driven below the start end portion of the driven pulley 25 and the posture changing device 10 rotatably provided inside the belt cover 24 above the rear of the cutter 18. The drive pulley 26 is wound around a plurality of guide wheel bodies 27 provided between the drive pulley 26 and the driven pulley 25. As shown in FIG. 3, the entrance 19a of the pinch transfer device 19 is formed by the front end portion of the left endless rotating belt 23 and the front end portion of the right endless rotating belt 23. The pair of left and right endless rotating belts 23 are wound in a state where the transport path portions 23a of the left and right endless rotating belts 23 are close to each other. In the descending work state of the harvesting portion 5, the pair of left and right endless rotating belts 23 were supported in a state of tilting backward, and the stem portion of the sandwiching and transporting device 19 was cut by the cutter 18 and the root portion remained in the field. The stalks of the edamame in the state are sandwiched and conveyed rearward and upward by a pair of left and right endless rotating belts 23, and supplied to the posture changing device 10.

In the harvesting section 5, when the harvesting operation is performed, the stems of the edamame to be harvested located in front of the traveling machine are introduced between the left and right support frames 20 by a pair of left and right dividers 17. As shown in FIG. 6, the stem portion 28a of the introduced green soybean 28 is cut by the cutter 18 at a position above the ground in front of the entrance 19a of the sandwiching and transporting device 19, and the root portion 28b of the green soybean 28 is separated into a field. It is left in the soil of. The stem portion 28a of the edamame 28 in which the root portion 28b is separated is received by the sandwiching and transporting device 19, and the stem portion 28a is sandwiched and transported upward by the sandwiching and transporting device 19 to the posture changing device 10 of the pod removal portion 7. Be supplied. When the stem portion 28a is cut by the cutter 18, when the edamame 28 in which the root portion 28b is separated moves backward above the cutter 18, the portion of the stem portion 28a above the cut portion is left and right. It is supported by a pair of support frames 20.

For example, as shown in FIG. 6, when the harvesting operation is performed with the multi-sheet 29 laid, the stem portion 28a is above the multi-sheet 29 before the edamame 28 is sandwiched and transported by the sandwiching and transporting device 19. Since the root portion 28b is not pulled out from the field and is cut by the cutter 18 at the above-mentioned point, the multi-sheet 29 is not lifted.

[Another Embodiment]
(1) In the above-described embodiment, an example in which the cutter 18 is composed of a disk-shaped cutter is shown, but the present invention is not limited to this. For example, it may be a hair clipper type cutter.

(2) In the above-described embodiment, an example is shown in which the cutter 18 is in a horizontal or substantially horizontal posture during harvesting work, but the present invention is not limited to this, and the cutter 18 may be in a downwardly inclined posture.

(3) In the above-described embodiment, an example in which the hydraulic motor 21 for driving the cutter 18 is adopted is shown, but the present invention is not limited to this. Various power sources such as an electric motor and an engine may be adopted.

(4) In the above-described embodiment, the driving unit 4 is formed on the right lateral side portion of the traveling machine body, and the harvesting section 5 is connected to the left lateral side portion of the traveling machine body, but the present invention is not limited to this. The driving unit 4 may be formed on the left lateral side portion of the traveling machine body, and the harvesting section 5 may be connected to the right lateral side portion of the traveling machine body.

(5) In the above-described embodiment, a crop harvester for harvesting green soybeans is shown, but the present invention is not limited to this. For example, various crops harvested in various podded states such as green beans may be harvested and various crop harvesters may be used.

The present invention can be applied to various crop harvesters having a transport device in the harvesting section for sandwiching and transporting the stem of the crop.

5 Harvesting section 17 Divider 18 Cutter 19 Holding and transporting device 19a Inlet 20 Support frame 21 Hydraulic motor 21a Output shaft

Claims (4)

A harvesting department is provided to harvest the crops to be planted in the field.
The harvesting section has a sandwiching and transporting device that sandwiches and transports the stem of the crop to the rear and upper part, and a cutter that cuts the stem of the crop at a position above the ground in front and lower of the entrance of the sandwiching and transporting device. Crop harvester. The crop harvester according to claim 1, wherein the cutter is a disk-shaped cutter that can rotate around a shaft core that faces up and down. A hydraulic motor for driving the cutter is provided.
The crop harvester according to claim 2, wherein the cutter is supported so as not to rotate relative to the output shaft of the hydraulic motor. A pair of left and right dividers located in front of the cutter are provided.
A pair of left and right support frames are provided, which are separately extended forward from both lateral sides of the holding and transporting device through the upper part of the cutter and arranged at intervals in the lateral direction of the machine body.
The crop harvester according to any one of claims 1 to 3, wherein the pair of left and right dividers are separately supported by front ends of the pair of left and right support frames.

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