JP2527918Y2 - Straw cutter switching device in combine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for switching a straw cutter in a combine that switches a rotatable and deployable straw cutter mounted on the rear part of the fuselage between a straw cutting state and a non-cutting state.

[0002]

2. Description of the Related Art Generally, in a combine having a straw cutter attached to the rear of the machine body, a switching device operated from the machine body rotates a switching plate provided at a straw input port up and down so that the conveyed waste material is conveyed. It is possible to switch freely between the cut state where the straw falls into the straw cutter and the non-cut state where the straw is transported and discharged from the upper surface of the switching plate to the rear of the machine, and further cleans the clogging etc. Is known that can be rotated and deployed rearward from a rotation fulcrum provided on one side thereof. However, since the conventional switching device connects the fuselage side and the straw cutter side with a connecting tool or the like on the side of the fuselage, the overall structure becomes complicated, and when the straw cutter is rotated and deployed, switching is performed. There is a problem that the connecting part of the device bends and protrudes to the side of the fuselage, and the rotation and deployment range of the straw cutter is restricted by the switching device. There is a risk that the switching operation may become defective, or an erroneous operation may occur due to forgetting to assemble the connecting portion.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and is capable of freely switching a straw cutter between a straw cutting state and a non-cutting state. In spite of this, when the straw cutter is rotated and deployed, it can be smoothly deployed in a desired rotation range without any restriction by the switching device. Can be damaged or
Another object of the present invention is to provide a drainage cutter switching device in a combine which does not cause an erroneous operation due to forgetting to assemble the switching device.

[0004]

In order to solve the above-mentioned problems, a technical measure taken by the present invention is to attach a straw cutter to the rear of the fuselage so as to be pivotable and deployable toward the rear, and In a combine provided with a switching device that switches the straw from the straw transport chain to a cutting and non-cutting state in the cutter,
The switching device is formed so as to be switchable by a body-side switching device and a cutter-side switching device that engages with the switching device. When the drainage cutter is deployed, the engagement is released in conjunction with the rotating drainage cutter. The cutter-side switching device is configured to be separated from the machine-side switching device.

[0005]

Therefore, according to the present invention, the cutter-side switching device is engaged with the machine-side switching device to switch the straw cutter to the straw cutting and non-cutting state. When the straw cutter is rotated and deployed, the disengaged cutter-side switching device is released from the machine-side switching device and rotates together with the straw cutter. There is no restriction by the switching device. Further, since there is no need to particularly connect the machine-side switching device and the cutter-side switching device that are engaged with each other, even if the straw cutter is rotated and deployed, the switching device is damaged or an erroneous operation such as forgetting to assemble occurs. Never.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 denotes a straw cutter mounted on the rear part of the body of the combine. The straw cutter 1 includes a mounting arm 2 provided on one side of a rear end side, and a vertical fulcrum 4 provided on a body frame 3. , And is rotatable between a storage position connected to the rear of the machine body and a deployed position opened rearward. Reference numeral 5 denotes a rotating blade horizontally laid inside the straw cutter 1. Reference numeral 6 denotes a switching plate for opening and closing the straw input port 7 of the straw cutter 1, the rear end of which is fixed to a left and right pivot shaft 8, which is vertically movable by the rotation of the pivot shaft 8. Has become. Reference numeral 9 denotes a straw transport chain slanted from the end of the grain stem feed chain (not shown) toward the center of the rear of the machine. The transport end of the straw transport chain 9 faces above the straw inlet 7. In. The switching plate 6 includes
A notch 10 is formed at a position corresponding to the straw transport chain 9 so that the switching plate 6 that moves up and down does not contact the straw transport chain 9.

[0007] Reference numeral 11 denotes a switching plate 6 which is operated by the body side.
Is a switching device that switches the straw cutter 1 between a straw cutting state and a non-cutting state by rotating the
It is formed by a machine-side switching device 12 and a cutter-side switching device 13 that engages with the device-side switching device 12. That is, the body-side switching device 12 includes a bell-crank-shaped switching lever 14.
Is pivotally supported by a device in the vicinity of the pivot 4 so as to be rotatable in the horizontal direction, and one end of the switching lever 14 is connected to the connecting wire 1.
5 is connected to a rotating link 16 provided at the rear of the body. The operation link 1 is provided on the rotation shaft 17 of the rotation link 16.
The operation link 18 is connected to the operation lever on the machine body side, and the operation of the operation lever pulls the connection wire 15 to rotate the switching lever 14. The cutter-side switching device 13 includes a rotating arm having a cutter switching lever 19 pivotally supported at a position near the rotation fulcrum 4 so as to be freely rotatable in the horizontal direction, and one end of the cutter switching lever 19 fixed to the pivot shaft 8. 20 via a connecting member 21. At the other end of the cutter switching lever 19, a locking body 22 is projected, and the locking body 22 is slidably engaged with the other end of the switching lever 14 from behind, and the switching lever 14 rotates. Then, the locking body 22 is pushed, and the cutter switching lever 19 rotates, and in conjunction with this, the pivot 8 moves the switching plate 6 upward.
When the straw cutter 1 in the storage position is rotated and deployed backward from the rotation fulcrum 4, the locking body 22 is switched to the switching lever 14.
The cutter-side switching device 13 is completely separated from the machine-side switching device 12 and is separated from the machine-side switching device 12 by an arrow A together with the straw cutter 1.
It turns in the direction. In this embodiment, the rotation fulcrum 4 of the straw cutter 1 is provided on the rear end side of the straw cutter 1. .

On the other hand, a base end of a rail switching lever 23 is connected and fixed to the rotating shaft 17, and a vertical shaft 25 integrally formed with a boss 24 is formed at the tip of the rail switching lever 23. A support link 27 is mounted rotatably up and down and left and right via a horizontal shaft 26 and a boss 28 is integrally formed at the distal end of the support link 27 as in the base end side. The tip side of the clamping rail 31 of the straw transport chain 9 is connected via a shaft 29 and a horizontal shaft 30. The clamping rail 31 is formed by a telescopic rod 32 and a support tube part 33 so as to be extendable and contractible. It is reduced to the front end side of the insertion port 7 and extended to the rear part of the machine beyond the straw input port 7 when not cutting. A spring 34 is wound around the base end of the support link 27 between the support link 27 and the boss 24 so as to constantly urge the clamping rail 31 toward the straw.

In the above configuration, the straw cutter 1
In switching, the operation link 18 is first pulled by the operation lever on the machine body side, the rotation link 16 is rotated, the connecting wire 15 is pulled, and the switching lever 14 of the machine body side switching device 12 is rotated. Accordingly, the locking body 22 is pressed, and the cutter switching lever 19 of the cutter-side switching device 13 rotates,
The pivot shaft 8 connected via the connecting member 21 moves the switching plate 6 upward to guide the straw into the straw inlet 7 so that the straw is cut off. Then, when the connecting wire 15 is loosened, the pressing of the locking body 22 is released, so that the switching plate 6 is moved down by its own weight and the drainage inlet 7 is closed, and the drainage is removed from the upper surface of the switching plate 6. It can be set to a non-cut state in which the sheet is conveyed and released to the rear of the machine as it is. At this time, the clamping rail 31 automatically expands and contracts in conjunction with the operation of the switching device 11, so that the straw can be reliably transported according to the cut or non-cut state of the straw, and the clamping rail 31 is supported by the support link. Since it is urged upward and downward by 27, even when the amount of straw being conveyed is small or large, the straw can be conveyed smoothly.

When the straw cutter 1 at the storage position is rotated and deployed rearward from the rotation fulcrum 4 for cleaning or the like,
Since the cutter switching lever 19 slidingly engaged with the switching lever 14 from the rear is separated from the switching lever 14 as it is, the cutter-side switching device 13 is completely released from the machine-side switching device 12 and rotates together with the straw cutter 1. Move. Therefore, the straw cutter 1 can be rotated and deployed to a desired range without any restriction by the switching device 11. Further, even when the straw cutter 1 is rotated and deployed from the straw cutting state, the switching plate 6 that is moving upward is lowered by its own weight with the separation of the cutter switching lever 19, so that the switching plate 6 becomes a peripheral member. Will not be contacted. At the same time, the cutter switching lever 19 rotates to the non-cutting position in conjunction with the switching plate 6 that moves downward. For this reason, straw cutter 1
Is returned to the storage position, as shown in FIG. 3, the cutter switching lever 19 is pressed by the switching lever 14 which is kept in the straw-cutting state, and the cutter switching lever 19 is rotated to move the switching plate 6 upward. As a result, the cutter 1 is brought into the original straw cutting state, so that the operation can be continued without changing the operation state. In addition, since the moment of the rotation operation force acts when returning the straw cutter 1, the straw cutter 1 can be rotated and returned while moving the switching plate 6 upward with a small operation force. As described above, since the machine-side switching device 12 and the cutter-side switching device 13 that engage with each other do not need to be particularly connected by a connecting tool or the like, the switching device 11 can be made compact and the straw cutter Even if the switch 1 is rotated and deployed in a desired range, no excessive force acts on the switching device 11 to damage the switching device 11 and no erroneous operation such as forgetting to assemble occurs.

[0011]

[Effect of the Invention] In short, according to the present invention, a straw cutter is attached to the rear of the body so as to be pivotable and deployable toward the rear, and the straw from the straw transport chain is cut and non-cut on the straw cutter. In a combine provided with a switching device for switching to a state, the switching device is formed so as to be switchable between a machine-side switching device and a cutter-side switching device engaged with the same,
At the time of deployment of the above-mentioned straw cutter, the cutter-side switching device, which has been disengaged in conjunction with the rotating straw cutter, is configured to be released from the machine-side switching device. While it is possible to switch between the waste straw cutting and the non-cutting state, when the straw cutter is rotated and deployed, the cutter side switching device and the machine side switching device are completely separated, so it is restricted by the switching device. Without this, the straw cutter can be rotated to a desired range, and cleaning and the like of the straw cutter can be performed freely. Since the machine-side switching device and the cutter-side switching device that engage with each other do not need to be connected with a special connecting device or the like, even if the straw cutter is rotated and deployed, the switching device may be damaged or may be forgotten. never produce erroneous operation, in which the order straw discharge cutter can be simplified work which rotates deployment.

[0012]

[Brief description of the drawings]

FIG. 1 is a plan view of a main part.

FIG. 2 is a side view of the same.

FIG. 3 is an operation explanatory view.

FIG. 4 is an interlocking system diagram.

[0013]

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drainage cutter 9 Drainage transfer chain 11 Switching device 12 Aircraft side switching device 13 Cutter side switching device

Claims (1)

(57) [Scope of request for utility model registration] 1. A straw cutter is mounted on the rear part of a fuselage so as to be rotatable and deployable rearward, and a switching device is provided on the straw cutter to switch between a cut and a non-cut state of the straw from the straw transport chain. In the combine, the switching device is formed so as to be switchable between the body-side switching device and the cutter-side switching device that engages with the switching device. A straw switching device in a combine, wherein the cutter-side switching device, which has been disengaged, is released from the machine-side switching device.