JPH0236359Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a cutter and a binding device arranged in this order in the direction along the straw removal direction on the downstream side of the removal straw transfer device in the transfer direction, and removes the straw from the removal straw transfer device. The present invention relates to a structure for a waste straw processing section of a combine harvester, which is equipped with a scraping rotary body that can be switched between forward and reverse directions in order to selectively supply waste straw to the cutter and the binding device.

In the above-mentioned conventional structure, a guide plate was provided between the scraping rotary body and the binding device to receive the waste straw scraped and supplied by the scraping rotary body and to feed it down to the binding device.

However, depending on the nature of the waste straw, such as the waste straw being wet with morning dew, it may accumulate on the guide plate, causing a blockage there and causing a failure in the supply of waste straw to the bundling device. The side flows down first,
There were drawbacks such as disturbances in the feeding posture, and a large amount of waste straw being excessively supplied to the bundling device at once due to the pressing force of the waste straw that was subsequently fed, resulting in poor bundling.

In view of the above-mentioned points, the present invention has an object to enable smooth and satisfactory supply of waste straw to a binding device during binding processing.

In order to achieve the above object, the present invention provides a straw removal processing section structure of the combine harvester described above, in which a space is provided between the raking rotary body and the bundling device in the direction of the rotational axis of the rotary body. A plurality of clamping type auxiliary conveyance devices each consisting of an endless rotation band and a guide rail attached thereto are provided, and a scraping claw protrudes from the clamping conveyance surface of the endless rotation band on the outer periphery of the scraping rotary body. and the binding device is arranged between the auxiliary conveyance devices adjacent to each other and at a position out of the clamping conveyance area so that the locus of the plucking packer enters therein.

That is, the waste straw from the raking rotary body is forcibly conveyed and supplied to the bundling device by at least one pair of auxiliary conveyance devices of the pinch conveyance type, and moreover, the waste straw that is wrapped around the auxiliary conveyance devices is On the other hand, because the waste straw is collected into the binding device using a packer, regardless of the properties of the waste straw, it is now possible to smoothly and efficiently feed it to the binding device without causing unexpected accumulation or posture disturbance. Furthermore, since the scraping claws of the scraping rotor protrude beyond the clamping and conveying surface of the auxiliary conveyance device, scraping guide supply to the cutter or binding device can be performed smoothly without causing posture disturbance.

Furthermore, since the trajectory of the pucker enters between them at a position outside of the clamping conveyance area of the auxiliary conveyance device, a reliable plucking operation can be performed without interfering with clamping conveyance.

Hereinafter, embodiments of the present invention will be described in detail with reference to illustrative 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 binding device 5 are provided on the downstream side in the conveying direction, and are lined up in that order toward the rear of the machine, and the waste straw after threshing is transferred from the feed chain 6 to the waste straw conveying device 3. It is configured to selectively feed the threshed waste straw to a cutter 4 or a bundling device 5 to shred or bundle the threshed straw and discharge it into the field.

A scraping rotary body 8 having scraping claws 7 protruding at a predetermined interval in the circumferential direction is provided below the conveyance end of the straw removal conveying device 3, and the rotary body 8 is integrally attached. An electric motor 10, which can be freely switched between forward and reverse directions, is interlocked with the shaft 9. Starting end sprockets 11, 11 are located on both sides of the rotating body 8 in the longitudinal direction, and are integrally rotatably attached to the rotating shaft 9, and protrude rearward from the respective cylindrical cases 12, 12 in which the rotating shaft 9 is housed. Stay 1
3, the terminal end sprocket 14 is freely rotatably mounted at a position corresponding to the starting end of the supply of waste straw to the bundling device 5, and a claw chain 15, which is an example of an endless rotation band, is installed across both sprockets 11 and 14. At the same time, guide rails 16 for the clawed chains 15, 15 are extended from the frame 3a of the waste straw conveying device 3, thereby forming auxiliary conveying devices 17, 17 for the binding device 5.

The bundler 18 of the binding device 5 is provided so that its rotation locus T falls between the pair of auxiliary conveyance devices 17, 17.
The structure is such that the waste straw that is stretched across is drawn into the binding device 5 by a packer 18 and bundled.

With the above configuration, when the motor 10 is in the forward rotation state,
The waste straw from the waste straw conveying device 3 is scraped and supplied to the cutter 4, and on the other hand, in the reversed state, the waste straw from the waste straw conveying device 3 is scooped up and supplied to the auxiliary conveying device 1.
7 and 17, and the auxiliary conveyance device 1
7 and 17, the material is forcibly held and conveyed to the binding device 5 and supplied.

To drive the binding device 5, power is transmitted from the threshing device 1 side by a belt to a receiving blade shaft 21 which is interlocked and connected to the cutting blade shaft 19 via a gear type transmission groove 20,
In addition, the blade shaft 21 is configured to transmit power through a belt type transmission mechanism 23 to a transmission shaft 22 that is mounted across the stay 13, and a chain type transmission mechanism 24 is connected from the transmission shaft 22. The power is transmitted to the binding device 5 through the cable.

A tension clutch 25 is disposed opposite to the belt-type transmission mechanism 23, and the tension clutch 25 is linked to an operating lever 26 disposed in a control section (not shown) at the front of the threshing device 1. When the operating lever ₂₆ is in the OFF position, only the forward rotation switch S1 and the reverse rotation switch _S2 for the motor 10 are closed.On the other hand, when the operating lever ₂₆ is in the ON operation position, the reverse rotation switch _S2 is closed. It is provided in a state in which only the binding device 5 is closed, and the scraping rotary body 8 and the auxiliary conveyance devices 17, 17 are driven in the forward and reverse directions in conjunction with the driving and stopping of the binding device 5.

The binding device 5 is mounted so as to be able to change its position in a direction perpendicular to the conveyance direction of the waste straw while being supported by a guide 27, and is configured to change the binding position with respect to the waste straw. Said transmission shaft 2
2 is constructed as a spline shaft, a sprocket 24a of the chain type transmission mechanism 24 is attached to the transmission shaft 22 so as to be slidable only, and bellows 28, 28 are attached so as to cover the transmission shaft 22.

FIG. 3 shows another embodiment, in which the auxiliary conveyance device 1
7, 17, the terminal end sprocket 14 of the one farthest from the feed chain 6 is connected to the transmission shaft 2.
2 so as to be integrally rotatable, and to the transmission shaft 22,
A gear type transmission mechanism 30 is attached which operates forward/reverse switching by sliding of the pawl clutch 29, and the above-mentioned motor 10 is
By using the drive system to the binding device 5 and switching the pawl clutch 29, the scraping rotary body 8 is
And the auxiliary conveyance devices 17, 17 are configured to be driven in forward rotation or reverse rotation.

A one-way clutch 31 is interposed between the transmission shaft 22 and the chain type transmission mechanism 24, and the transmission is transmitted to the binding device 5 in the normal rotation drive state, that is, in the state in which the scraping rotary body 8 supplies waste straw to the cutter 4. It is configured so that it does not occur.

In the above embodiment, the scraping rotary body 8 and the auxiliary conveyance devices 17, 17 are integrally configured to be freely reversible in the forward and backward directions.
For example, when tying and shredding are alternately switched between one process and the adjacent process, even if waste straw remains on the auxiliary conveyance devices 17, 17 during conveyance, it may be removed by cutting. However, in the present invention, for example, the auxiliary conveying devices 17, 17 are configured so that the starting end is immediately behind the scraping rotary body 8, and the power is transmitted through a separate system. It is also possible to provide one.

As the cutter 4, a cylinder type cutter may be provided.

[Brief explanation of drawings]

The drawings show an embodiment of the structure of the waste straw processing section of a combine harvester according to the present invention, FIG. 1 is an overall side view of the combine with some parts omitted, FIG. 2 is a partially cutaway plan view of the main parts, and FIG. FIG. 2 is a partially cutaway plan view showing an example. 3... Straw waste conveyance device, 4... Cutter, 5...
... Binding device, 7 ... Scraping claw, 8 ... Scratching rotating body, 9 ... Rotating shaft, 11 ... Starting end side sprocket, 15 ... Endless rotating band, 16 ... Guide rail, 17 ... Auxiliary Conveyance device, 18... Rake-in patch car, T... Rotation locus of the pick car.

Claims (1)

[Claims for Utility Model Registration] 1. A cutter 4 and a binding device 5 are arranged in this order in a direction along the direction of conveying the removed straw on the downstream side of the removed straw conveying device 3 in the conveying direction, and the said removed straw conveying device 3 The structure of the waste straw processing section of a combine is provided with a scraping rotary body 8 that can be freely switched between forward and reverse directions in order to selectively supply scraped straw from the cutter 4 to the cutter 4 and the bundling device 5. Between the body 8 and the binding device 5, a plurality of clamping type auxiliary conveyance devices 17 each consisting of an endless rotating band 15 and a guide rail 16 attached thereto are provided at intervals in the direction of the rotational axis of the rotating body 8. At the same time, a scraping claw 7 is provided on the outer circumferential portion of the scraping rotary body 8 that protrudes beyond the clamping and conveying surface of the endless rotation band 15, and the binding device 5 is connected to the auxiliary conveying devices 17, 17 that are adjacent to each other. A structure for a waste straw processing section of a combine harvester, characterized in that the structure is arranged such that a locus T of a raking packer 18 enters a position between and outside the clamping and conveying area. 2. The structure according to claim 1, wherein the sprocket 11 on the conveyance start end side of the auxiliary conveyance device 17 is attached to the rotating shaft of the rotary body 8 so as to be freely rotatable therewith.