JPH0532001B2 - - Google Patents

Description

[Detailed Description of the Invention] A device installed in a conventional combine harvester to bind waste straw discharged from the culm discharge port of a threshing device is a device that binds waste straw discharged from the culm discharge port of a threshing device. Straw bundles were conveyed by a horizontal straw bundle clamping and conveying device heading towards the mown field on the side, and then discharged.

However, clogging occurs when transferring the straw bundles from the binding machine to the straw bundle clamping and conveying device, and a straw bundle clamping and conveying device is required, which not only increases costs but also increases the weight of the rear of the machine. The drawback was that the front-to-back balance of the aircraft deteriorated.

The present invention aims to improve the above-mentioned drawbacks, and includes a straw conveying device whose conveying end is deviated toward the ears of straw at the rear of the culm opening of the threshing device. A disk cutter is attached to the head, and a bundling device is installed on the ear side to release the straw bundles to the harvested field. A transfer device that converts the removed straw into a front-back posture and supplies it to the binding device is provided so as to reciprocate approximately horizontally around the ear movement path side, and the transfer device is interlocked with the binding device. The above problems have been solved by interposing a clutch in the transmission system of the bundling device so that waste straw can be selectively supplied to the disk cutter or the bundling device.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a threshing device mounted on the machine stand of a combine harvester, and a top plate 3 of a dust sorting chamber at the rear of the culm outlet 2.
At the top, a straw conveying device 5 is provided which takes over the straw discharged from the discharge culm 2 from the feed chain 4 and conveys it to the rear.

Reference numeral 6 denotes a disk cutter installed at the rear of the threshing device 1, and a binding device 7 is attached to the side plate facing the cut field, and the input shaft of the binding device 7 is connected to the rotation of the disk cutter 6. The backer 9 is connected to the axis 9a in the front-rear direction, and the ejection arm 10 is connected to the axis 1 in the front-rear direction and slightly oblique.
0a, the needle 11 and the building 1
2. The holder 13 rotates around the horizontal axis, and the swing arm 14 operates in synchronization with the pack car 9 via the shaft 14a.

Reference numeral 15 denotes a reciprocally rotating transfer device provided on the ear side of the top plate 3, and its support rod 16 is connected to the transfer path cover 17 with the stock side facing the boss 16a of the support rod 16.
A bolt 18b on the ear side is inserted into an elongated hole 17a and held by a thumbscrew 18c so that the supply position can be adjusted. The freely supported arm 19 is connected to one end of a link 20 pivoted to the support rod 16 by a connecting rod 21, and the other end of the link 20 is connected to the swing arm 14 via a connecting rod 22.

Further, an operating rod 23 is attached to the boss portion of the arm 19.
is rotatably inserted through the operating rod 23, and a sliding body 24 fixed to the ear side end of the operating rod 23 is in pressure contact with the upper surface of a cam 25 fixed to the support rod 16 while being pulled by a spring 26. A culm holder 27a is fixed to the intermediate part, and the boss part of the culm holder arm 27b loosely fitted to the stock side has its front end fixed to the support rod 16 and its rear end to the rail 28 facing above the binding device 7. The operating rod 23 is fitted in a loosely slidable manner, and the end of the operating rod 23 on the stock side is formed into a hook-shaped straw holding piece 27c.

Next, the operation of the above-mentioned device will be explained. The waste straw discharged from the discharge culm opening 2 is conveyed while being held by the waste straw conveying device 5, and is discharged from the rear end.

At that time, the relay device 15 is in the position shown in FIGS. 1 and 2 in conjunction with the backer 9, and the sliding body 24 is removed from the high part of the cam 25 and moved clockwise as shown by arrow A in FIG. Since it rotates, the straw holding piece 27c and the culm holder arm 27a rotate and divide the discharged straw, and the straw holding piece 27c and the culm holder arm 27
b, and in this state, it swings around the bolt 18b on the ear side while being guided by the rail 28 toward the mowed field on the side, and when it reaches the top of the binding device 7, the sliding body 24 Since the front part of the cam 25 is reversed counterclockwise, the straw holding piece 27c opens, and the straw holding piece 27c is delivered to the packer 9, which rotates in synchronization, and is focused on the receiving surface of the discharge arm 10.

The operating rod 23 then pivots forward and returns to the illustrated state, and thereafter the waste straw is sequentially transferred and supplied to the bundling device 7. When a predetermined amount of waste straw is collected in the bundling device 7 in this manner, the needle 11, the bill 12, and the holder 13 are activated to bind the bundled straw, and the bundled straw bundle is rotated clockwise as viewed from the rear of the discharge arm 10. Due to the movement, it was ejected into the mowed field on the side of the aircraft.

In addition, when shredding waste straw without bundling, open the switching plate 6b of the disc cutter 6 as shown by the chain line in FIG. It is shredded and scattered on the fields.

As described above, the present invention provides a straw conveying device 5 whose conveying end is deviated toward the ears of straw at the rear of the culm opening of the threshing device 1, and a disk cutter is installed at the rear of the threshing device 1. A bundling device 7 for discharging the straw bundles to the harvested field side is attached to the ear side, and the straw bundles are conveyed by the straw discharging device 5 between the rear end of the straw discharging device 5 and the bundling device 7. A transfer device 15 is provided to convert the removed straw into a front-back posture and supply it to the binding device 7, so as to be able to reciprocate approximately horizontally around the ear movement path side, and the transfer device 15 is connected to the binding device 7. 7 and a clutch is interposed in the transmission system of the bundling device 7 so that waste straw can be selectively supplied to the disk cutter 6 or the bundling device 7. By disengaging the clutch in a state away from the straw removal conveying device 5, the conveying device 15
The waste straw can be shredded by the disk cutter 6 while the waste straw transport device 5 is stopped at a position spaced apart from the transport end, and the bundling device 7 is also stopped.

In addition, when the bundling process is performed, when the bundling device 7 and the transfer device 15 are driven, the waste straw transported by the waste straw transport device 5 remains in a horizontal position without changing the culm attitude, and rotates horizontally in the front and back directions. The straw is then fed to the binding device 7 on the side of the machine for binding processing, which prevents the straw from becoming disordered, entangled, and shifting in the direction of the culm, and is kept in an orderly and well-aligned state. It can be focused and united.

Moreover, since the waste straw is collected in a horizontal position in the front-rear direction along the side of the disk cutter 6, it is possible to bundle it in a more uniform and stable state.
Furthermore, by shortening the longitudinal length of the machine, it is possible to prevent the machine's longitudinal balance from deteriorating, and the straw bundles can be discharged to the mown field on the side of the machine without the need to install a straw bundle holding and conveying device. be able to.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention,
FIG. 1 is a plan view, FIG. 2 is a perspective view, FIG. 3 is a side view of the binding device, and FIG. 4 is an operational view of the cam. 1... threshing device, 5... straw conveyance device, 6...
Disk cutter, 7... binding device, 10... release arm, 15... relay device.

Claims (1)

[Claims] 1. A straw conveying device 5 with a conveying end deviated toward the ear side of the straw is installed at the rear of the culm opening of the threshing device 1, and a disk cutter 6 is attached to the rear of the threshing device 1, is equipped with a binding device 7 that releases the straw bundles to the mown field side, and between the rear end of the straw transporting device 5 and the binding device 7, the waste straw transported by the waste straw transporting device 5 is tied in the front and back direction. A relaying device 15 that converts the posture and supplies it to the binding device 7 is provided so as to be able to reciprocate approximately horizontally around the ear movement path side, and the relaying device 15 is interlocked with the binding device 7 and performs binding. A waste straw processing device for a combine harvester, characterized in that a clutch is interposed in the transmission system of the device 7 so that waste straw can be selectively supplied to a disk cutter 6 or a bundling device 7.