JPH0522041Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to a waste straw processing device for a combine harvester that processes waste straw that has been harvested and threshed using a cutter or knotter.

(B) Prior Art Conventionally, many combine harvesters are already known in which a cutter and a knotter are installed as a straw processing device at the rear of the threshing device.

(c) Problems to be solved by the invention Although the cutters and knots of the known combine harvester were removable, the extremely heavy cutters and knots had to be removed separately using a stand, etc. Therefore, it was difficult to clear the clog at the end of the straw discharging device facing the front of the cutter from above, to replace or clean the cutting blade of the cutter, or to tension the straw discharging chain.

(d) Means for solving the problem The present invention is a combine harvester in which a cutter and a knot are attached to the rear of the threshing device, and the cutter and the knot are attached to the same support member, either integrally or separately. The above-mentioned problem was solved by supporting the device so that it could rotate on a pivot point.

(e) Operation The waste straw that has been harvested, transported and supplied by the pre-processing device and threshed by the threshing device is transported and discharged rearward by the waste straw transport device.

When this waste straw is to be shredded, it is fed to a cutter and shredded, and when it is to be collected and bundled as long straw, the supply to the cutter is stopped, and the straw is fed to a knotter and tied. Treat and release or transport.

When removing a clog in the cutter, replacing the cutting blade, or when servicing the sorting section of the threshing device, the cutter and knotter are rotated together and retracted. The cutter is attached to the threshing device when removing clogged straw from the cutter during straw binding processing, when adjusting the tension of the straw removal chain, or when removing blockage from the straw removal conveying device. Leave it as it is, rotate only the knot to separate it from the cutter, and perform the above operation in this state.

(F) Example An example of the present invention will be explained with reference to the drawings.
The threshing device 1 is mounted on one side of the machine base 3 that has the traveling device 2, and on the other side of the machine base 3, although not shown, there is an operation panel, in order from the front, like the conventional one.
A driver's seat, a grain tank, an engine, etc. are arranged, and a pre-processing device consisting of a reaping device and a grain culm conveying device is attached to the front so that it can be raised and lowered, and a cutter 5 and a cutter 5 are installed at the rear of the threshing device 1. Knots 6 are arranged in that order.

Further, on one rear side of the machine 3, a transfer tube 7 with a transfer spiral protrudes from the rear of the grain tank. A discharge tube 10 is integrally arranged upright, and the upper tube 8 is supported so as to be raised and lowered by a hydraulic cylinder 11 and horizontally rotated by a motor 12 via a transmission mechanism.

Furthermore, a cutter 5 and a knotter 6 are disposed at the rear of the threshing device 1, and the straw conveying chain 13 extends from the stock outlet side of the culm opening of the threshing device 1 to the ear side above the cutter 5. It is installed diagonally.

The cutter 5 supports a pair of front and rear rotating shafts 15, 16 parallel to the casing, each of which has a large number of rotating blades 18 attached thereto, and the rear rotating shaft 16.
is driven by the shaft 19 of the threshing device 1 via a V-belt 20 as shown in FIG.
5 is driven at a reduced speed by a rear rotary shaft 16 through gears, and the upper and lower brackets 21, 21 attached to the ear side of the cutter 5 are supported by semicircular metal fittings screwed into arc-shaped supports 22, 22. The grain discharge tube 1
0, and their support metal 2
2 and 22 are received by stoppers 23 and 23 that are integral with the grain discharge tube 10, and the upper bracket 21 has a horizontal receiving guide portion 21a and a dust sorting chamber of the threshing device as shown in FIG. and a slanted upright ear guide plate 21b surrounding one side of the grain discharge tube 10 on an extension of the ear guide plate 25 that stands up from the top plate 1a of the cutter 5. The stock end side of the fixed support pipe 26 rests on the receiver 27 that protrudes rearward from the stock end side of the threshing device 1, and the mounting brackets 28, 29 are attached to the bolts 29, 2.
9, it is removably attached.

The knotter 6 also includes a packer 30, a needle 31, a door 32, a knot 33, and a release arm 34.
It consists of left and right L-shaped pipes 35, 3.
5 are attached to a support frame 37 formed by connecting the cutters 5 with horizontal pipes 36 .
8, 38, and both sides are removably attached to the cutter 5 with bolts 39, 39.

Further, between the rear end of the straw conveying chain 13 and the cutter 6, there is provided a scraping tine 40 which is rotationally driven by the input shaft of the cutter 6, and the input shaft is driven by the rear rotation of the cutter 5. A bracket 37 is driven by the shaft 16 through a chain and hangs down from the upper side frame plate 41 on the ear side of the knotter 6 and the support frame 37.
a are connected to rings 45 and 46 similar to the support metal 22 attached to the grain discharge pipe 10 via an upper stay 42 and a lower stay 43, and the support frame 3
The stock side of 7 is supported by a stay 47 at the rear of the machine base 3, and is supported by stoppers 23, 23 provided protruding from the grain discharge tube 10 of the rings 45, 46.

In the above-mentioned combine harvester, when shredding the straw discharged from the culm opening of the threshing device 1 and sent later by the straw conveyance chain 13, the shutter provided on the upper surface of the cutter 5 is opened, and the straw conveyance chain 13 is shredded. 13
The waste straw discharged from the end falls into the cutter 5 in a sideways position and is exposed to a large number of disc-shaped rotary blades 18.
It is shredded and discharged to the field below.

In addition, when the waste straw is tied without being shredded, when the shutter is closed, the waste straw passes over the shutter of the cutter 5 and is discharged backward, and the scraping tines 40 . . . direct it toward the knotter 6. The police car 30 further intermittently scrapes it into the convergence part at the front of the door 32, and then the door 32 detects that it has condensed by a predetermined amount.
When this is detected, the one-turn clutch is engaged in the same manner as in the conventional one, and the needle 31, knot 33, and release arm 34 are activated to bind and release.

When the straw sorting chamber of the thresher 1 is to be maintained, the cutter 5 is unclogged, or the rotary blades 18 are replaced, the bolts 29,
29, the lower bent part of the stay 47 is pulled outward from the machine base 3, and then the cutter 5 is pulled rearward. rotate around,
With the cutter 5 and the knotter 6 integrated, the third
As shown in the figure, it rotates around the grain discharge tube 10, and the front surface of the cutter 5 and the dust exhaust port 48 at the rear of the threshing device 1 are opened, so that the above-mentioned operations can be easily performed with a simple rotation operation. can be done.

In addition, the cutter 5 is attached to the threshing device 1 in order to remove straw clogged at the end of the straw conveyance chain 13 or on the supply side of the knotter 6 during the bundling process, or to adjust the tension of the straw conveyance chain 13. Mama Boruto 3
9, 39 and pull the knot 6 backward, the knot 6 will be attached to the ring 45, as shown in FIG.
46 and the stays 42 and 43, and horizontally rotates around the grain discharge tube 10, so that the front surface of the knotter 6 and the rear end of the straw conveying chain 13 are open. If the straw clogging in the feed section of the knotter 6 can be easily removed and the straw transport chain 13 has loosened, loosen the bolts 50 and remove the support arm 51 of the rear sprocket. The tension of the straw conveying chain 13 can be adjusted by pulling out the straw removal chain 13 rearward and tightening the bolts 50.

After each of the above-mentioned operations is completed, the cutter 5 and the knotter 6, or if only the knotter 6 is turned, are rotated forward to carry out the respective mounting operations.

When such a turning operation is performed, the weight of the cutter 5 or the knotter 6 is extremely large, and the grain discharging tube 10 can be supported with its upper tube 8 protruding diagonally upward. Since it is so strongly formed, it is possible to stably support not only the knot 6 but also the knot 6 and the cutter 5 in an integrated state.

In addition, when the cutter 5 and the knot 6 are turned together, or when only the knot 6 is turned, the lower end of the stay 47 can be grounded and used as a stand.

(g) Effects of the invention The present invention provides a combine harvester in which the cutter 5 and the knotter 6 are attached to the rear of the threshing device 1 as described above.
Since the cutter 5 and the knotter 6 are supported on the same support member so as to be able to rotate integrally or separately about the same rotational fulcrum, it is possible to maintain the sorting chamber of the threshing device 1, When removing a blockage in the cutter 5 or replacing the cutting blade of the cutter 5, the cutter 5 and the notch 6 can be rotated with a simple operation without having to remove them separately as in the past. It can be evacuated and the various operations mentioned above can be performed in a wide open state.

In addition, there is no need to maintain the sorting room of the threshing device, and when only the knotter 6 or the straw conveying device is to be maintained, only the knotter 6 can be rotated even though the knotter 6 and the cutter 5 can be rotated together. This allows quick and easy maintenance of the knotter and the straw removal conveyor.

Furthermore, when the cutter 5 is rotatably supported on the support member and the knot 6 is rotatably supported on the rear surface of the cutter 5, the weight of the cutter 5 is of course transferred to the support portion of the cutter 5 for the support member. The weight of the cutter 6 is also loaded, making it more likely to break, and if this is to be prevented, the support must be constructed with excessive strength, and when maintaining the cutter 5, the cutter 5 must be rotated. If the cutter 5 moves, the cutter 6 will follow it and rotate in an unexpected manner, which is dangerous and an obstacle to the work.
Alternatively, since the knots 6 are rotatably supported separately on the same support member, the weight of the knots 6 is not applied to the support part of the cutter 5, and the support part of the cutter 5 is supported only by itself. It can be configured as simply as possible. Further, when the cutter 5 is rotated during maintenance, the rotation of the cutter 5 does not affect the notch 6, and maintenance work can be carried out safely and does not become an obstacle.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is a side view of a combine harvester with a straw processing device attached to the rear of the threshing device; FIG. 4 is a plan view showing a state in which the knot is turned. 1... Threshing device, 5... Katsuta, 6... Knotta, 10... Grain discharge tube, 22... Support money, 4
5,46...Ring.

Claims (1)

[Claims for Utility Model Registration] (1) In a combine harvester in which a cutter 5 and a knotter 6 are attached to the rear of the threshing device 1, the cutter 5 and the knotter 6 are attached to the same support member, integrally or separately. A straw disposal device for a combine harvester, which is supported so as to be able to rotate on a rotation fulcrum. (2) A grain discharge tube 10 in which a supporting member serving as a rotational fulcrum for the cutter 5 and the knotter 6 is installed upright at the rear of the machine body.
A straw disposal device for a combine harvester according to claim 1 of the registered utility model.