JPS6050412B2 - Threshing machine waste straw processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a waste straw bundling device and a waste straw cutter that are respectively disposed at a rear part and a lower part in the feeding direction of a waste straw delivery device, and in the vicinity of a delivery end of the waste straw delivery device. position,
The present invention relates to a waste straw processing device for a threshing machine, which is provided with a device that can be selectively switched between a first state in which the waste straw sent out is supplied to the binding device and a second state in which the waste straw is supplied to the cutter.

In such a waste straw processing device of a threshing machine, during the bundling process, a portion of the waste straw supplied to the bundling device tends to spill onto the cutter side.

Therefore, for example, according to an existing device that operates and deactivates the binding device and the cutter in a contradictory manner in conjunction with the switching operation of the supply state switching device, the binding device is activated and deactivated in the first state, and the binding device is activated and deactivated in the second state. Although each cutter can be operated reliably, especially when switching from bundling processing to cutter processing, the cutter is started with the above-mentioned spilled waste straw accumulated inside the cutter, and as a result, the cutter may malfunction. This can easily lead to problems such as cutting errors and cutter damage due to poor starting.

In view of this situation, the present invention makes it possible to avoid the troubles associated with the process switching described above, while reliably operating the binding device in the first state and the cutter in the second state. It has a purpose in trying to make it happen.

Therefore, the technical means taken by the present invention is to provide a straw disposal device for a threshing machine as described above, which has a relatively long drum shape along the direction of the straw culm, and has locking projections on its periphery. The supply state switching device is composed of a rotating body that selects the first state and the second state by forward and reverse switching, and the supply state switching device includes a constantly rotating shaft linked to a drive source and a transmission shaft to the rotating body. A shift gear mechanism is provided between the shift gear mechanism and the input shaft of the bundling device to switch between a state in which the two shafts are interlocked in reverse rotation and a state in which they are interlocked in forward rotation via an idler gear. A pawl clutch is provided that engages when in the first rotational position, and the binding device is configured to operate and deactivate in conjunction with the switching operation of the rotating body, and the cutter is connected to the drive source. It is always linked and has the following effects.

That is, in the first state, the bundling device not only operates reliably to ensure the bundling process, but also operates the cutter to remove some waste straw that falls into the cutter during the bundling process. Since the material can be cut and discharged one after another without accumulating in the cutter, there is no need to worry about overloading the cutter with accumulated waste straw when switching to cutter processing. By simply modifying the cutter so that it is always activated, it has become possible to prevent problems such as cutting errors and cutter breakage in the early stages of cutter processing.

In particular, as the above-mentioned supply state switching device, a rotating body that is relatively long in the shape of a drum along the direction of the waste straw culm and has locking protrusions on its circumference and can be switched between forward and reverse directions is used. While the waste straw is stably supported by the surrounding part and the protrusions, the waste straw is stopped and conveyed by the protrusions as the rotating body with protrusions rotates.
The waste straw can be smoothly and reliably fed without troubles such as posture disturbance or clogging, and thereby both the bundling process and the cutter process can be performed well and reliably.

Hereinafter, embodiments of the present invention will be described based on the drawings. The waste straw processing device of a threshing machine collects waste straw in a horizontal position that is sent out from a waste straw roller 2 in a threshing machine handling room 1 via a feed chain 3. A discarded straw delivery device 4 is provided at the rear and in a diagonal direction toward the tip side of the discarded straw, which clamps and conveys the discarded straw in its sideways posture, and at the rear part of this delivery device 4 in the sending direction,
A waste straw bundling device 5A that ties and discharges waste straw in a sideways posture is provided in a fixed amount, and a waste straw bundling device 5A that is in a sideways posture is disposed in a lower part between the sending device 4 and this bundling device 5A. A disk-shaped waste straw cutter 5B that cuts into a plurality of pieces in the direction is provided, and at the upper part of this cutter 5B, at a position near the delivery end of the delivery device 4, the waste straw being delivered is attached to the bundling device 5A. A device 6 is provided which can be selectively switched between a first state in which waste straw is supplied and a second state in which waste straw is supplied to a cutter 5B, so that the bundling process and the cutter process can be performed selectively.

The delivery device 4 is composed of a conveyance chain 4A located below the delivery path and an upper clamping rail 4B provided opposite to the conveyance chain 4A. The supply state switching device 6 has a relatively long drum shape along the culm direction of the waste straw, and is disposed in a state that is biased toward the base of the waste straw plant, and the tip of the tip of the drum relative to the sending device 4 on the periphery thereof At one location on the side and three locations on the stock side, locking conveyance protrusions 8 are provided at regular intervals in the circumferential direction.
By rotating in the forward direction, the discharged waste straw is held in a group of protrusions 8 and conveyed to the cutter 5.
By forcibly feeding the bundling device 5A over the upper side of B and rotating it in the opposite direction, the discharged straw is transferred to the protrusion 8...
. . . It is a rotating body configured to be held and conveyed in groups and forcibly fed and supplied to the cutter 5B.

Incidentally, the protrusions 8... group are provided so as to pass through the circumference of the drum 7 of the rotary body 6 and are movable only in the penetrating direction, and the protrusions 8 are provided within the rotary body 6. Each inner end portion is pivotally connected to a shaft 10 that is provided in a state that is offset toward the delivery device 4 side with respect to the rotation axis x of the rotary body 6, and as the rotary body 6 rotates, the rotary body 6 By being engaged and rotated around the shaft 10 at the circumferential portion and moving in the penetrating direction, the tip rotation locus a is connected to the waste straw transfer portion from the rotary body 6 to the binding device 5A, and from the rotary body 6 to the waste straw transfer portion. As the rotary body 6 rotates half a rotation from the point between the waste straw delivery section to the cutter 5B, the rotary body 6 gradually moves away from the outer circumferential surface of the rotary body 6, and the subsequent rotary body 6
The rotating body 6 is configured to move toward and away from the outer circumferential surface of the rotary body 6 so as to approach as the rotary body rotates half a rotation, and so that its tip rotation locus a overlaps the terminal end of the delivery device 4 when viewed from the side. be. The forward/reverse switching mechanism of the rotary body 6 is connected to a constant drive output shaft 11 via a belt transmission device 12, and a cylindrical constant rotation shaft 14 that is loosely fitted to the input shaft 13 of the binding device 5A. and an intermediate transmission shaft 17 interlocked with the input shaft 15 of the rotating body 6 via a chain transmission 16, the larger diameter of the two large and small gears 17a and 17b spline-fitted to the intermediate transmission shaft 17. A state in which the gear 17a and the shift gear 20 are engaged to cause the shafts 14 and 17 to rotate in reverse, and a state in which the shift gear 20 is engaged with the idler gear 18 which is always engaged with the small diameter gear 17b to cause the shafts 14 and 17 to rotate in the normal direction. A shift gear mechanism 19 that can be operated to switch between interlocking states is provided.

Between the shift gear 20 of the shift gear mechanism 19 mounted on the always-rotating shaft 14 side and the bundling device input shaft 13, when the shift gear 20 is in a position to rotate the rotary body 6 in the forward direction, both 20 and 13 are automatically rotated. and when the shift gear 20 is in a position to reversely rotate the rotating body 6,
A pawl clutch 2 that automatically releases the interlocking of both 20 and 13
1, the binding device 5A is configured to operate and deactivate in conjunction with the switching operation of the rotating body 6, and the cutter 5B is configured to operate in either the first or second state. A mechanism 23 that can be maintained in operation is provided.

This mechanism 23 includes the constantly driven output shaft 11 and the cutter 5B.
This is a belt transmission device interposed between the input shaft 22 of the BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an example of the implementation of the waste straw processing device for a threshing machine according to the present invention, FIG. 1 is a longitudinal cross-sectional side view of the main part, FIG. 2 is a cross-sectional plan view of the main part, and FIG. 3 is a cross-sectional side view of the main part. , Figure 5 shows, respectively.
FIG. 4 is an enlarged longitudinal cross-sectional side view of the main part, and FIG. 4 is an enlarged cross-sectional plan view of the main part.

4...Discharge straw sending device, 5A...Discharge straw binding device, 5B...Discharge straw cutter, 6...
... Supply state switching device, 23... Mechanism.

Claims (1)

[Claims] 1 A waste straw binding device 5A and a waste straw cutter 5B are respectively disposed at the rear part and the lower part of the waste straw sending-out device 4 in the sending direction, and the waste straw is delivered to a position near the sending end of the waste straw sending-out device 4. A waste straw processing device for a thresher is provided with a supply state switching device 6 that can selectively switch between a first state in which waste straw is supplied to the bundling device 5A and a second state in which the waste straw is supplied to the cutter 5B. It has a relatively long drum shape along the culm direction, and has locking protrusions 8 on its periphery.
The supply state switching device 6 is a rotating body that selects between the first state and the second state by switching between forward and reverse directions.
The two shafts 14, 17 are connected between the constantly rotating shaft 14, which constitutes a drive source, and the transmission shaft 17 to the rotating body 6.
A shift gear mechanism 19 is provided for switching between a state in which the reverse rotation is interlocked and a state in which the forward rotation is interlocked via the idler gear 18. A pawl clutch 21 that engages when in the first rotational position is provided so that the binding device 5A is activated and deactivated in conjunction with the switching operation of the rotating body 6, and the cutter 5B is configured to operate and deactivate in conjunction with the switching operation of the rotating body 6. A threshing machine waste straw processing device that is constantly connected to the drive source.