JPH0221892Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a combine harvester in which a cutter and a binding device are arranged in this order in the direction of conveying the removed straw on the downstream side of the removed straw conveying device in the direction of conveyance. Regarding the structure of the waste straw processing section.

[Conventional technology]

In the above-mentioned combine harvester, an auxiliary conveying device and a clamping rail are provided at the end of the waste straw conveying device, and a clamping rail is provided along this auxiliary conveying device, and the scraped straw coming out from the discharging straw conveying device is transferred between the auxiliary conveying device and the clamping rail. It is configured such that it is sandwiched between the two and sent to the binding device.

Then, when this auxiliary conveyance device and the clamping lever are retracted upward together, the waste straw coming out from the terminal end of the waste straw conveyance device will fall directly to the cutter side. In this case, a stopper such as a guide member is provided to guide the waste straw so that it reliably falls toward the cutter.

[The problem that the idea aims to solve]

With the above-mentioned structure, when the waste straw is sent to the bundling device using the auxiliary conveyance device and the clamping rail, the stopper becomes a hindrance to the flow of the waste straw, so it is necessary to switch the stopper to a position where it does not get in the way. I have to keep it. On the other hand, when sending the waste straw to the cutter side, the auxiliary conveyance device and the clamping rail must be retracted upward, and then the stopper must be returned to its original, normal position.

As mentioned above, when choosing whether to send the waste straw to the bundling device or the cutter, the stoppers must be switched at the same time as the auxiliary conveyance device and the clamping rails are changed in position, which makes it difficult to operate. There was room for improvement. It is also conceivable to configure the stopper to be automatically switched in conjunction with the posture change operation of the auxiliary conveyance device and the clamping rail, but this would involve complicating the structure.

The object of the present invention is to obtain a structure that can improve operability while minimizing the complexity of the structure when sending waste straw to the binding device side or cutter side.

[Means to solve the problem]

The features of the present invention include, in the structure of the waste straw processing section of a combine harvester as described above, a first posture in which the waste straw is supplied to the binding device by interrupting the waste straw supply path from the waste straw conveying device to the cutter; An auxiliary conveying device is provided that can be switched between a second posture of retracting upward from the path, and an elastic stopper is provided that takes a posture of guiding the waste straw from the waste straw conveying device toward the cutter in a free state, and , the auxiliary conveyance device and the elastic stopper are arranged side by side with their positions shifted in the left-right direction of the machine in plan view;
This elastic stopper is the first
The elastic urging force is set so that the waste straw is elastically deformed and pushed up by the transfer force of the waste straw on the auxiliary conveyance device in the posture, and the waste straw is pinched and conveyed between the auxiliary conveyance device. Located in
Its action and effects are as follows.

[Effect]

For example, as shown in FIG. 3, when the auxiliary conveyance device 11 is placed in the second position in which it is retracted above the waste straw supply path R, the waste straw from the waste straw conveyance device 3 is guided to the elastic stopper 9 which is in a free state. The waste straw is then supplied to the cutter 4 through the waste straw supply path R.

On the other hand, when the auxiliary conveyance device 11 is placed in the first position as shown in FIG. 1, the elastic stopper 9 is pushed up by the waste straw carried from the waste straw conveyance device 3 onto the auxiliary conveyance device 11. As a result, the waste straw is pressed against the auxiliary conveyance device 11 by the biasing force of the elastic stopper 9, and is sent to the binding device 5 side while being held between the elastic stopper 9 and the auxiliary conveyance device 11. be.

As described above, the elastic stopper 9 functions both as a guide for guiding the waste straw toward the cutter 4 and as a clamping rail for the auxiliary conveying device 11.

[Effect of idea]

As described above, it is now possible to select whether to send the waste straw to the binding device side or the cutter side simply by changing the attitude of the auxiliary conveying device, and it is possible to improve the operability.

Since there is no special mechanism for interlocking the auxiliary conveyance device and the elastic stopper, the structure does not become complicated.Furthermore, the elastic stopper can also be used as the clamping rail of the auxiliary conveyance device, allowing the conventional clamping device to be You can omit the rail,
We were able to simplify the structure.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

A waste straw conveying device 3 is provided at the rear of the threshing device 1 and constitutes the waste straw processing section 2 of the combine harvester.
A disk-shaped cutter 4 and a bundling device 5 are arranged in this order toward the rear of the machine on the downstream side in the conveying direction, and the waste straw after threshing is transferred from the feed chain 6 to the waste straw conveying device 3. The waste straw is selectively supplied to a cutter 4 or a binding device 5, and the waste straw after threshing is shredded or bundled and discharged into a field.

Stays 8 are provided to protrude from the support frame 7 of the waste straw conveying device 3 in the left-right direction of the machine body, and the waste straw from the waste straw conveying device 3 is attached to each of the stays 8 to the binding device 5.
An elastic stopper 9 is attached to prevent the paper from being transferred to the side and feed it to the cutter 4 side.

Then, the auxiliary conveyance device 11 is elastically operated so that it can be freely swung around the axis P of the input shaft 10 to the binding device 5, and is displaced in the left-right direction of the machine with respect to the elastic stopper 9 in plan view. They are arranged side by side near the stopper 9.

With the above structure, as shown in FIG. The elastic stopper 9 is pushed up by the waste straw riding on it. As a result, the waste straw is pressed against the auxiliary conveyance device 11 by the biasing force of the elastic stopper 9, and is sent to the binding device 5 side while being held between the elastic stopper 9 and the auxiliary conveyance device 11. be.

On the other hand, when the auxiliary conveyance device 11 is retracted upward from the waste straw supply path R as shown in FIG. The waste straw is supplied to the cutter 4 through the waste straw supply route R while being guided by the waste straw.

To attach the auxiliary conveyance device 11 to the input shaft 10, one frame 11a is connected to the one-way clutch 12, allowing only the driving rotation of the input shaft 10, and is received by the support frame 14, thereby attaching the auxiliary conveyance device 11. It is configured to be maintained in the first attitude, and is configured to be transmitted from the input shaft 10 to the auxiliary conveyance device 11 in an inverted state by gear transmission.

An input pulley 15 to which power is transmitted from the threshing device 1 side is freely rotatably attached to the shaft end side of the input shaft 10, and an input pulley 15 is attached to a control section (not shown) to the end side of the input pulley 15. The operating arm 1 is connected to the operating lever 16 via the release wire 17.
8 is attached freely rotatably, and the input pulley 15
A claw clutch 19 is provided between the handle and the operating arm 18 so as to be slidable only. With the above configuration, the binding device 5 and the auxiliary conveyance device 1 are connected and disconnected by the pawl clutch 19 to the input pulley 15.
1 to drive or stop driving, and
The pawl clutch 19 is connected to the operating arm 18, and in this state, the input shaft 10 is rotated by the operating lever 16 in a direction opposite to the rotational direction of the input pulley 15,
Auxiliary transport device 1 via one-way clutch 12
1 to the second attitude.

To drive the binding device 5, the input shaft 10 and the binding device 5 are interlocked and connected via a chain type transmission mechanism 13.

The elastic stopper 9 can be attached to various locations, such as by attaching it to the cover 1a on the side of the thresher 1, or by extending an attachment stay (not shown) therefrom.

Furthermore, the present invention is of a type in which the feed chain 6 is oriented in the left-right direction of the vehicle body, and a waste straw conveying device 3 is provided in series with the feed chain 6 so as to convey the waste straw in the left-right direction of the vehicle body. It can also be applied to combine harvesters.

Further, the cutter 4 may be a cylinder type cutter.

[Brief explanation of the drawing]

The drawings show an embodiment of the structure of the waste straw processing section of a combine harvester according to the present invention, in which Fig. 1 is a longitudinal sectional view of the main part of the combine, Fig. 2 is a partially cutaway plan view of the main part, and Fig. 3 is a cutter. It is a side view which shows the processing state by. 3... Straw waste conveyance device, 4... Cutter, 5...
... Binding device, 9... Elastic stopper, 11... Auxiliary conveyance device, R... Discarded straw supply path.

Claims (1)

[Scope of utility model registration request] This is a structure of a waste straw processing section of a combine harvester, in which a cutter 4 and a binding device 5 are arranged in this order in the waste straw transport direction on the downstream side of the waste straw transport device 3 in the transport direction. It is possible to switch between a first posture in which the waste straw supply path R from the waste straw to the cutter 4 is interrupted and the waste straw is supplied to the bundling device 5, and a second posture in which the waste straw is retreated upward from the waste straw supply path R. An auxiliary conveyance device 11 is provided, and an elastic stopper 9 is provided in a free state to guide the waste straw from the waste straw conveyance device 3 toward the cutter 4 side, and the auxiliary conveyance device 11 and the elastic stopper 9 are arranged in a plane. The elastic stoppers 9 are arranged side by side with their positions shifted in the horizontal direction of the machine as seen, and are elastically deformed by the transfer force of the waste straw on the auxiliary transport device 11 in the first posture of the auxiliary transport device 11. A structure of a waste straw processing section of a combine harvester in which an elastic biasing force is set so that the waste straw is pushed up and conveyed while being pinched between the auxiliary conveyance device 11.