JPS5917159Y2 - Transmission device of straw processing device in combine harvester - Google Patents

Description

[Detailed description of the invention] It is already known from Japanese Utility Model Application No. 53-41264 that a binding device and a cutter are arranged side by side in the straw discharge section of the threshing device of a conventional combine harvester.

However, in the above device, the transmission device for the cutter and the transmission device for the binding device are provided separately, which not only complicates the configuration and increases cost, but also increases the width, which worsens the turning performance of the machine. Moreover, since the weights of both transmission devices were significantly different, there were drawbacks such as deterioration of the lateral balance of the aircraft.

The present invention allows the transmission mechanism of the cutter and the binding device to be housed in a single transmission case, thereby ensuring reliable transmission of power by the transmission device, while also being compact and inexpensive. It can be constructed to be lightweight, and the width of the machine can be made narrower, improving the turning ability of the machine body.Furthermore, although it is a simple transmission device, when tying the waste straw, it is possible to use the cutter. It is an object of the present invention to provide a transmission device for a straw removal device in a combine harvester, which can stop a fingered roll and also stop a cutting section that requires a large amount of power.

To explain the drawings in more detail below, reference numeral 1 denotes a threshing device mounted on one side of a machine base 3 having a traveling device 2, and a reaping device 4 is mounted on the front part of the threshing device 4 with an upper pivot shaft and a hydraulic cylinder 5. It is mounted so that it can be tilted up and down.

Further, on the other side of the machine platform 3, an operation panel 6, a pilot's seat 7, a paddy receiving floor 8, an engine, etc. are installed in order from the front. 9b is provided.

Further, a straw removal conveyor 10 consisting of a straw removal chain and a guide rail is installed obliquely from near the end of the culm pinching conveyor 9 to a rear intermediate portion of the dust removal chamber of the threshing device 1.

At the rear of the threshing device 1 and facing the straw discharge section of the straw removal conveyor 10, the cutter A is placed on the tip side in the culm direction of the removal straw, and the binding device B is arranged in parallel on the stock head side. The cutter A consists of an iron roll 11 having a scraping body consisting of fingers 11a extending from the circumferential surface, which is pivotally supported on the front side of the upper part, and an elastic body such as iron or rubber that is pivotally supported on the rear side. 2, a rotary blade 14 attached to a main shaft 13 pivotally supported below the roll, a fixed blade attached to a casing A', etc.

In addition, the binding device B includes a knotter bill 16 attached to the tip of a holding cylinder 15 that protrudes from a part of the casing case C' that protrudes upward from the transmission case C toward the stock side of the waste straw.
a node 16 consisting of a release arm 16b, etc.;
A needle 18a and a packer 18b are attached to the tip of a holding cylinder 17 that protrudes from the lower part of the transmission case C toward the stock end.
, and a focusing section 18 consisting of a door 18C and the like.

Next, the transmission device will be explained. The transmission case C, which distributes and transmits power to the cutter A and the binding device B, is arranged between the cutter A and the binding device B. 19 and an input shaft 12 that also serves as the shaft of the roll 12 driven via the V pulley 20.
The end of the binding device B side of the binding device B is supported in the transmission case C, and the clutch gear 21 spline-fitted to the input shaft 12a so as to be movable in the axial direction moves the roll 11 by the operation of the shifter 22. The power is intermittent by engaging and disengaging the gear 23 fixed to the shaft 11b, and the power transmitted to the shaft 11b is transmitted to the sprocket 24, the chain 25, and the sprocket 26.
is transmitted to the main shaft 13 of the cutter A.

In addition, the gear 27 fixed to the input shaft 12a is connected to the binding device B.
Since the packer 18b is engaged with a gear 28a fixed to the packer shaft 28, the packer 18b always performs a raking operation, and the gear 28a is loosely fitted into a timing shaft 29 having a one-rotation clutch that is interlocked with the door 18C. It meshes with gear 29a.

Furthermore, a sprocket 29 fixed to the timing shaft 29
b is interlockingly connected to a knotter shaft 31 via a chain 30, and when the one-turn clutch is engaged, the timing shaft 29 makes one revolution and the needle 18a and the knotter bill 16a perform predetermined operations.

Next, the operation will be described. The waste straw that is threshed while being transported by the clamping conveyor of the threshing device 1 and discharged from the culm is conveyed to the rear center of the machine body by the straw transporter 10.

If you want to shred this waste straw and scatter it on the field, operate the clutch lever 32 on the side of the driver's seat 7 and pull the wire 33, and the shutter 22 will move the clutch gear 21 to the cutter A side. Since the cutter A is moved to mesh with the gear 23, the cutter A is driven.

Therefore, the ear side of the straw is hooked on the finger 11a and folded in half, and then inserted between the rolls 11 and 12. Unlike when folded in half at the base of a plant and sent, the load does not fluctuate greatly, and the material is neatly shredded into predetermined lengths and distributed on the field.

At this time, the packer 18b of the bundling device B is constantly operating to scrape in the stock part of the waste straw, so that the part of the stock part is fed in an orderly manner over the guide plate 34.

In addition, the transmission case C is curved so that the side into which the waste straw is sent has a concave part, so that the waste straw is accurately supplied to the ear side or to the inlet of the cutter A, and the waste straw is prevented from falling backward. Cutter A is applied to the waste straw that is being discharged.
During this time, the door 18C of the bundling device B does not operate at all, since the particles are not scraped up and deposited in the convergence section.

That is, in the bundling device, only the packer 18b operates and all other mechanisms are stopped.

In addition, when the waste straw is to be bundled and released, when the clutch lever 32 is operated to loosen the wire 33, the clutch gear 21 separates from the gear 23 and only the lower roll 12 that does not have fingers rotates. , upper finger 1
1A and the main shaft 13 to which the rotary blade 14 is attached stop, the waste straw is not scraped into the cutter, and the power is saved by stopping the rotary blade, which requires a large amount of power. In addition, it is safe because the rotary blade is not rotating even if the user inserts his/her hand into the cutting part of the reversible cutter while the binding device B is being driven.

The waste straw is raked into the front surface of the door 18C by the packer 18b and concentrated, and when it reaches a predetermined amount, the door 18C is tilted, and the needle 18a and Notterbill 16a, which engage the one-turn clutch, are It operates to bind the waste straw, and the discharge arm 16b discharges this to the rear.

The present invention is to install a threshing device on a machine base having a traveling device as described above, and to install a cutter and a binding device to the left and right on the straw discharge part at the rear of the threshing device, and to install a cutter and a binding device to the left and right. A transmission case that houses the transmission mechanism of the cutter and the bundling device is interposed in the cutter, and a roll with fingers for feeding the waste straw to the cutting part and a roll without fingers are mounted on the upper part of the cutter. The shaft of the roll that does not have the same function as the common input shaft of the cutter and the binding device,
Since the input shaft is equipped with a nut that interrupts the power to the cutter, the transmission device for the cutter and the binding device can reliably transmit power to both, and the entire structure can be made compact and inexpensive. In addition, it can be constructed to be small and lightweight, and the width of the aircraft can be made narrower, thereby improving the turning performance of the aircraft.

-L, when the power to the cutter is cut off by the clutch to cut the waste straw, the roll with fingers will stop and not only will it not be possible to scrape the waste straw into the cutter, but it will also require a large amount of power and cause extremely dangerous rotation. The blade also stops, saving power, and it is safe because even if you put your hand into the cutting part of the cutter while the binding device is driven, you will not make a hole.

Furthermore, since the shaft of the roll without fingers is made a common manual shaft for the cutter and the binding device, the transmission device can be simplified, the cost can be reduced, and the overall structure can be made smaller and lighter.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view, Fig. 3 is a rear view, and Fig. 4 is a partially broken view of the main part of the cover. FIG. 5 is a perspective view, FIG. 5 is a side view of the same, and FIG. 6 is a developed view of the transmission mechanism. A: Cutter, B: Binding device, C
...Transmission case, 1...Threshing device, 1
0... Straw removal conveyor, 11゜12... Roll, 11 a... Finger, 16 a...
...Notterville, 18 a... Needle, 18 b... Packer, 18 C...
・Door

Claims (1)

[Scope of utility model registration request] A threshing device is installed on a machine base having a traveling device, and a cutter and a binding device are installed on the straw discharge section at the rear of the threshing device, separated into left and right sides, and a transmission mechanism for the cutter and binding device is installed between them. A transmission case containing a mechanism is interposed, and a roll with fingers for feeding straw into the cutting section and a roll without fin force are mounted above the cutter, and a roll without fingers is installed. 1. A drive device for a waste straw processing device in a combine harvester, characterized in that the shaft is used as a common input shaft for a cutter and a binding device, and a clutch is interposed on the manual shaft for connecting and disconnecting power to the cutter.