JPH10276543A - Grain culm conveyer for combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent conveyance from being disordered at a section, where the side of ear tips is joined from the front position of joining, when conveying one line of reaped grain culms to the joining position on a main conveyer route at a conveyer for a reaping part. SOLUTION: In the configuration of conveying reaped grain culms to a threshing part by arraigning a pull-up device at the front end of reaping frame on a combine and arranging a conveyer at the rear part of pull-up device, a lower conveyer 22 and an upper conveyer 23 are arranged above a hill conveyer 20, guide plates 35 and 36 are respectively arranged while facing at the lower conveyer 22 and the upper conveyer 23, and the turning loci of tops ends of the lower conveyer 22 and the upper conveyer 23 are overlapped with the top end parts of guide plates on the conveyer route.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport device for transporting grain culms after harvesting a combine to a threshing unit.
In particular, the present invention relates to the configuration of a feed chain-side transfer device in the case where a three-row cutting combine is raked and transported as a set of two and one rows.

[0002]

2. Description of the Related Art In a conventional harvesting unit of a combine, a raising device is disposed at a front portion of a cutting frame, and a raising device is disposed at a lower part of a front end, and a raising device is disposed at a rear portion. The raising device is arranged so that a raising case is erected on each line, a chain is wound around each raising case, and the tine can be protruded from the chain at regular intervals. Had been placed. In the three-row cutting combine, three raised cases were erected, two of which were arranged with the tines facing each other, and the other was with the tines facing the guide plate. is there.

[0003]

A cutting blade is arranged at the lower rear of the raising device for the three-row cutting combine, and the cutting of the grain culm is carried out while being pinched and conveyed by the root conveying device. It was configured to cut by a blade, conveyed backward by a conveying device, and conveyed to the threshing unit. However, in the case of a three-row cutting combine, during the conveyance to the threshing unit, two lines of grain culm and one line The grain culm is combined and transported to the threshing device, and the two-row transport device can be transported to the threshing device in a stable position by the stock transport device and the tip transport device. Since the tip-end transporting device conveys only to the merging position, the turbulence of the conveyance occurs at the part where the tip side merges from the position before the merging.

[0004]

The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described. That is, in the configuration in which the raising device is disposed at the front end of the harvesting frame of the combine, the transport device is disposed at the rear portion of the raising device, and the harvested grain culm is transported to the threshing unit. A lower transfer device and an upper transfer device are disposed, and a guide plate is disposed to face the lower transfer device and the upper transfer device, respectively. It overlaps with the section and the transport route.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. Fig. 1 is an overall side view of the combine, Fig. 2
FIG. 3 is a front view of the raising device, FIG. 4 is a schematic plan view of the transfer device, FIG. 5 is a plan view of the stock transfer device, and FIG. 6 is a view of the lower transfer device and the upper transfer device of the present invention. FIG. 7 is a front view similarly.

1 and 2, the overall structure of the combine will be described. The body frame 2 is mounted on the crawler-type traveling device 1, and the reaping portion A is projected forward and leftward on the body frame 2, and the rear portion of the reaping frame 4 rotates with respect to the body frame 2. It is freely supported and can be moved up and down by a hydraulic cylinder. A weeding board 3 is arranged at the front end of the mowing frame 4, an elevating device F is arranged at a rear portion thereof, and a cutting blade 5 is arranged below the weeding board F. The root is lifted and cut by the cutting blade 5, and is conveyed rearward by the conveying device B described later.

A threshing unit D is arranged at the rear of the cutting unit A,
The root of the grain culm conveyed by the conveying device B is inherited by the feed chain 7, and while being pinched and conveyed by the feed chain 7, the tip portion is threshed through the threshing device D, and is below the threshing unit D. The sorted granules sorted by the arranged sorting apparatus are stored in the Glen tank 8 arranged on the right side of the threshing unit D via the frying conveyor.

The straw after threshing by the threshing unit D is transported backward by a straw chain, cut by a cutter device, or bound by a binding device, and discharged onto a field. Reference numeral 9 denotes a discharge auger for carrying out the grains in the Glen tank 8 outside the machine. An operating unit C including a driver's seat 10, a steering lever 11, a main shift lever 12, and the like is arranged at the front of the Glen tank 8, and an engine, a transmission, and the like are arranged below the operating unit C.

Next, the structures of the raising device F and the conveying device B will be described with reference to FIGS. In the three-row cutting combine according to the present embodiment, the pulling device F uses the same parts such as a case in many cases, reduces the number of parts, and simplifies the shape. As shown in FIG. 3, the raising device F supports a driving sprocket 14 at an upper portion of a case 13 and rotatably supports a driven sprocket 15 at a lower portion, and a chain between the driving sprocket 14 and the passive sprocket 15. 1
6 is wound around the chain 16 and the tines 17.17.
.. Are pivoted at regular intervals, and a regulating plate is provided in the case 13 on the conveying path side of the grain stalk in parallel with the chain 16.
The tines 17, 17,... Rotate while projecting. And the right two lines are tine 17.17 ...
Are placed facing each other, and the left one is tine 17.17 ...
・ It is arranged to protrude toward the center.

A transport device B is disposed at the rear of the raising device F. The transport device B includes a stock transport device 20, a tip transport device 21, a lower transport device 22, an upper transport device 23, a scraping device 24, The right-hand feeder 20R is disposed between the upper right side of the cutting blade 5 below the raising device F and the vertical feeder. As shown in FIG. 6, 20R has driven sprockets 26 and 27 arranged at one end and the center of the mounting frame 25,
A driving sprocket 28 is disposed laterally between the driven sprockets 26 and 27, and the driven sprockets 26 and 27
The chain 29 is wound around the drive sprocket 28.

A star wheel 31R is fixed below the rotating shaft 30 of the driven sprocket 27, and a pulley 32 is fixed above the rotating shaft 30. A pulley 33 is rotatably supported at the front of the mounting frame 25. , The pulley 32
-A scraping belt 34R having a large number of protrusions is wound between 33. A star wheel 31M is rotatably supported below the center raising device F, and the star wheel 31M meshes with the star wheel 31R to transmit power, and a scratch disposed above the star wheel 31M. The belt 34M can also be driven at the same time. The central star wheel 31M and the scraping belt 34
A pinching rod 37 extending rearward along the side of the chain 29 from between M is arranged so that the stem of the grain stalk can be pinched and conveyed rearward. This right stock former transfer device 2
A head conveying device 21 composed of a chain and a pinching rod is provided from above the 0R to the threshing entrance.

The left stock transfer device 20L is disposed below the left raising device F, and is configured substantially similarly to the right stock transfer device 20R.
A left scraping device 24L composed of a star wheel 31L and a scraping belt 34L is arranged on the L front portion.

As shown in FIGS. 7 and 8, a lower transfer device 22 and an upper transfer device 23 of the present invention are disposed above the left stock former transfer device 20L. The lower transfer device 22
And the upper conveying device 23 are configured such that a chain is wound between a driving sprocket and a driven sprocket, a large number of tines are arranged at predetermined intervals in the chain, and the tines protrude on the conveying path side. I have.

Power is transmitted to the driving sprocket of the lower transfer device 22 from the transmission shaft in the transmission pipe, and the lower transfer device 22 is pulled leftward and protrudes obliquely forward toward the case. Arranged so that the tine hits the position. The lower portion of the transmission shaft is inserted into a chain case that drives the stock transfer device 20L, and the chain case is connected to a transmission case that forms a mowing frame. A driving sprocket of an upper transfer device 23 is fixed to an upper portion of the transmission shaft, and the upper transfer device 23 projects rightward and rearward toward the right ear tip transfer device side so that the tine hits the tip part of the grain stem. It is arranged. The upper end of the power transmission shaft drives the left pulling device F via a universal joint.

On the other hand, a guide plate 35 is provided on the rear left side cover 39 of the raising case of the center raising device FM in accordance with the inclination and length of the lower transport device 22 and the upper transport device 23. 36 is protruded, and the guide plate 35
36 is located slightly above the lower transfer device 22 and the upper transfer device 23, and as shown in FIG.
The rotation locus of 23a and the guide plates 35 and 36 are configured to overlap like a and b in the transport path c in a plan view (strictly, when viewed in a direction perpendicular to the plane formed by the rotation locus). .

With this configuration, when the reaping operation is performed, the right two strips are driven by the scraping devices 24L and 2L.
The stalks are scraped to the center by 4M,
The stem of the culm is pinched by R, the stem is cut by the cutting blade 5, the spike side is held by the spike transfer device 21 and transferred rearward, and the left single strip is raised by the scraping device 24R. It is scraped backward from between FM and FL, the root of the grain stem is pinched by the root transport device 20L, the root is cut by the cutting blade 5, and the tip side is a lower transport device 22 and an upper transport device 23. It is held by the guide plates 35 and 36 and conveyed backward, merged with the two right-hand lines, and the root of the cereal stem is inherited from the root conveying device 20 via the vertical conveying device and the feed chain 7 is inherited. It is transported to the threshing unit D.

In the process of cutting the culm and transporting it to the threshing section, the lower transport device 22, the upper transport device 23 and the guide plate 3
It is transported backward while being guided by 5.36,
The transport and the posture of the cereal culm are surely joined and transported to the spike transport device 21 without disturbing the posture of the culm. However, the lower transport device 22, the upper transport device 23, and the guide plates 35 and 36 may be arranged so that the device is arranged on one side and a device is arranged and transported to the merging side. Also, the guide plate 35
-36 can also be constituted by a rod.

[0018]

The present invention is configured as described above.
The following effects are obtained. That is, in the configuration in which the raising device is arranged at the front end of the harvesting frame of the combine, the transport device is arranged at the rear portion of the raising device, and the harvested grain stem is transported to the threshing unit, Since the transport device and the upper transport device are arranged, and the guide plate is disposed opposite to the lower transport device and the upper transport device, the grain culm after being cut off by the lower transport device, the upper transport device, and the guide plate. Is transported and pinched during transport, so that the posture of the transported culm is not disturbed, clogging can be prevented, and transport can be reliably performed. And since the rotation locus of the tip of the lower transport device and the upper transport device overlapped the guide plate tip portion in the transport route, the grain culm was located between the distal ends of the lower transport device and the upper transport device, The culm does not fall down from the gaps and can be transported reliably.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a front view of the same.

FIG. 3 is a front view of the raising device.

FIG. 4 is a schematic plan view of a transfer device.

FIG. 5 is a plan view of a stock transfer device.

FIG. 6 is a side view of the lower transfer device and the upper transfer device of the present invention.

FIG. 7 is a front view of the same.

[Explanation of symbols]

 2 Cutting frame F Raising device B Transport device D Threshing unit 20 Stock transport device 22 Lower transport device 23 Upper transport device 35/36 Guide plate

Claims (1)

[Claims] In a configuration in which a raising device is disposed at a front end of a harvesting frame of a combine, a transport device is disposed at a rear portion of the raising device, and the harvested grain stem is transported to a threshing unit. A lower transport device and an upper transport device are disposed above the upper transport device, and guide plates are disposed opposite to the lower transport device and the upper transport device, respectively, and the rotation trajectories of the distal ends of the lower transport device and the upper transport device are described above. Combine grain culm conveying device characterized in that it overlaps the guide plate tip and the conveying path.