JP4667358B2 - Combine waste disposal device - Google Patents

Description

  The present invention relates to a combine waste disposal apparatus.

A cutter part that cuts the waste conveyed from the threshing part, a waste discharge state that opens and closes the waste introduction port above the cutter part and discharges the waste to the rear, and a waste introduction that is introduced into the cutter part. A switching plate for switching to a state, and an opening / closing lever provided integrally with the switching plate to open and close the switching plate, and configured so that the switching plate can be opened beyond the discharge introduction position, thereby maintaining the cutter section. A combine squeezing apparatus with improved performance is known (Patent Document 1).
JP 2002-262651 A

  However, while the waste disposal apparatus of the above document improves the maintainability of the cutter unit, the switching operation of the switching plate is performed only by the opening / closing lever provided close to the cutter unit, so that the switching operation from the driver's seat is performed. There is a problem that can not be done. In addition, by releasing the engagement between the open / close lever and the switching plate, the switching plate is opened beyond the evacuation introduction position. There is also a drawback that the operability is poor.

  In order to solve the above problems, a combine waste disposal apparatus according to the present invention opens and closes a cutter portion 8 that cuts waste that is conveyed from a threshing portion, and a waste introduction port 9 above the cutter portion 8. A switching plate 11 that switches between a waste discharging state that discharges waste to the rear and a waste introducing state that is introduced into the cutter unit 8, and an open / close lever 14 that is provided integrally with the switching plate 11 and that opens and closes the switching plate 11. And a switching arm 23 that is configured to be able to open the switching plate 11 to a position greater than or equal to the position where the squeezing is introduced. The lever 14 is configured to be able to rotate independently in the opening direction of the switching plate 11 when the engagement with the switching arm 23 is released, and when the switching arm 23 and the opening / closing lever 14 are engaged with each other, It is characterized by performing the switching operation of the straw introduction position.

  According to the combine waste disposal apparatus of the present invention configured as described above, the switching plate for switching between the waste discharge state for discharging waste to the rear and the waste introduction state for introducing into the cutter portion is provided. Since it can be opened more than the introduction position and can be operated from the driver's seat side, the operability of the switching plate can be improved while maintaining good maintainability of the cutter portion. Further, even when the switching plate is opened beyond the discharge introduction position, the switching plate can be opened / closed by the opening / closing lever, so that the operability is good.

  FIG. 1 is a side view of a combine to which the present invention is applied. A pre-processing unit 3 for harvesting cereals is connected to the front of the traveling machine body 2 including the crawler-type traveling unit 1 so as to be able to move up and down.

  The cereals harvested by the pretreatment unit 3 are conveyed to a threshing unit (not shown) disposed behind the left part of the pretreatment unit 3 by a feed chain (not shown). The cereals are threshed in the threshing unit, the grains are accommodated in the glen tank 6, and the sewage is introduced into the introduction port 9 (exhaust port) of the cutter unit 8 that cuts the sewage by the sewage chain 7 (smudge conveyor) It is conveyed to the 藁 introduction port

  The introduction port 9 of the cutter unit 8 is opened and closed by the switching plate 11, and when the introduction port 9 is in a state where the introduction port 9 is opened, the conveyed waste is introduced into the cutter unit 8. A disc-shaped scraping blade 12 and a cutting blade 13 are pivotally supported in the cutter unit 8, and the waste introduced into the cutter unit 8 is scraped between the scraping blade 12 and the cutting blade 13. After being cut and cut at a predetermined interval, it is discharged out of the machine. On the other hand, if it becomes the waste discharge state in the state where the introduction port 9 is closed, the waste is not introduced into the cutter portion 8 and is discharged outside the machine without being cut.

  FIG. 2 is a side view of the cutter unit with the side plate covered with the cover body, and FIG. 3 is a perspective view of the cutter unit with the side plate not covered with the cover body. The opening / closing operation of the switching plate 11 is performed by the opening / closing lever 14 provided around the cutter unit 8 or the switching operation lever 16 provided around the driver's seat 4.

  The opening / closing lever 14 is a leaf spring formed of an elastic member, and is connected to the switching plate 11 via a rotating shaft 17. More specifically, a horizontal rotation shaft 17 is integrally attached to a base end portion of a substantially rectangular switching plate 11 that is long in the left-right direction. The pivot shaft 17 is pivotally supported on the upper rear portion of the left and right side plates 18 (the left side plate is not shown) that forms the left and right side walls inside the cutter portion 8, and the right end portion thereof extends from the right side plate 18. It protrudes to the right.

  A base end portion of the opening / closing lever 14 is bolted to the right end of the rotating shaft 17. The opening / closing lever 14 is substantially parallel to the left and right side plates 18 from the base end to the middle, and the distal end portion is bent in a direction (rightward) away from the right side plate 18, and rotates together with the switching plate 11. To do. Therefore, when the opening / closing lever 14 is turned upward (forward), the switching plate 11 is turned upward to open, and when it is turned downward (rear), the switching plate is turned downward to close.

  The switching operation lever 16 is provided at the rear of the driver's seat 4 so as to be able to swing back and forth. A moving range is defined. The guide groove 21 is formed in a shape that can be fixed in a state in which the switching operation lever 16 is swung forward and rearward.

  When the switching operation lever 16 having the above-described configuration is swung backward, the opening / closing lever 14 is rotated upward via the wire 22 and the switching arm 23, and the switching plate 11 is opened. On the other hand, when the switching operation lever 16 is swung forward, the opening / closing lever 14 is rotated downward via the wire 22 and the switching arm 23, and the switching plate 11 is closed.

  The switching arm 23 is supported on the rotating shaft 17 via a switching shaft 24. The switching shaft 24 is a sleep-like member in the left-right direction that covers the outer periphery of the rotating shaft 17, and is pivotally supported on the rotating shaft 17. The switching arm 23 is rotatably supported by the rotating shaft 17 by integrally attaching the base end portion of the switching arm 23 to the distal end portion (left end portion) of the switching shaft 24 by welding or the like.

  The switching arm 23 connects the proximal end and the distal end so that the proximal end and the distal end are substantially parallel to the right side plate 18 of the cutter unit 8 and the distal end is closer to the opening / closing lever 14 than the proximal end. The middle part to be bent is formed. One end of the wire 22 is attached to the tip of the switching arm 23 via a spring 26.

  The other end of the wire 22 is attached to the base end of the switching operation lever 16 on the driver's seat 4 side. When the switching operation lever 16 is swung backward, the base end of the switching operation lever 16 is moved forward. In conjunction with this, the tip of the switching arm 23 is pulled forward, and the switching arm 23 rotates upward.

  An engaging pin 23a protrudes from the distal end of the switching arm 23 toward the opening / closing lever 14, and the opening / closing lever 14 has an engaging hole 14a corresponding to the engaging pin 23a. Is formed. When the engaging pin 23a is inserted into the engaging hole 14a, the opening / closing lever 14 and the switching arm 23 are engaged to rotate integrally.

  The switching shaft 24 to which the switching arm 23 is attached is connected via a link 27 to a left and right driven shaft 28 that is pivotally supported on the front upper side of the left and right side plates 18 of the cutter unit 8. The A base end portion of a substantially rectangular auxiliary cover 29 that is long in the left-right direction is attached to the driven shaft 28, and the auxiliary cover 29 rotates integrally with the driven shaft 28.

  The link 27 includes a driving arm 31 whose base end portion is integrally attached by welding or the like in the middle of the switching shaft 24, and a driven shaft 28 whose base end portion projects rightward from the right side plate 18 of the cutter portion 8. This is a double-lever mechanism comprising a driven arm 32 that is integrally bolted to the right end, and a connecting rod 33 that connects the tip of the driving arm 31 and the tip of the driven arm 32.

  When the switching arm 23 is rotated upward, the driving arm 31 is integrally rotated, the driven arm 32 is rotated upward in conjunction with the driving arm 31, and the connecting rod 33 is raised. When the connecting rod 33 rises to a predetermined position, it comes into contact with the stopper member 34. The stopper member 34 is a plate-like member that is bolted to the right side plate 18 of the cutter portion 8 via a bracket 36 or the like. The contact between the stopper member 34 and the connecting rod 33 causes the switching arm 23 to have a predetermined height. It does not rotate upward.

  Various members such as a switching arm 23, a switching shaft 24, and a link 27 provided on the right side of the right side plate 18 of the cutter unit 8 (outside the cutter unit 8) cover the entire right side surface of the right side plate 18 of the cutter unit 8. It is protected by the front and rear cover bodies 37, 37, and only a part of the members such as the right end portion of the rotating shaft 17, the opening / closing lever 14, and the engagement pin 23 a of the switching arm 23 are exposed to the outside of the cutter portion 8. Yes.

  The cover body 37 is formed with a pin hole 38 for exposing the engagement pin 23a of the switching arm 23, and a stopper pin 39 for preventing the switching plate 11 from being unnecessarily opened. Yes. The pin hole 38 is formed in a shape corresponding to the arc-shaped movement locus of the engagement pin 23a accompanying the rotation of the switching arm 23, and the engagement / disengagement of the opening / closing lever 14 and the switching arm 23 causes the cover body 37 to be cut. It can be performed while attached to the right side plate 18 of the portion 8.

  In the combine having the above configuration, when the opening / closing lever 14 and the switching arm 23 are engaged and the switching operation lever 16 on the driver's seat 4 side is swung backward, the switching arm rotates upward as described above. Along with this, the opening / closing lever 14 also rotates upward to open the switching plate 11, and the auxiliary cover 29 rotates away from the switching plate 11 via the link 27.

  Subsequently, when the switching operation lever 16 is swung backward, the above-described waste introduction state is established, and the switching plate 11 is disposed at the waste introduction position and assumes a posture facing obliquely upward in the front. In the state where the waste is introduced, the contact between the connecting rod 33 and the stopper member 34 described above prevents the switching plate 11 from rotating further in the opening direction.

  On the other hand, when the opening / closing lever 14 and the switching arm 23 are engaged and the switching operation lever 16 is swung forward, the proximal end portion of the switching operation lever 16 moves rearward, thereby acting on the tip of the switching arm 23. The forward pulling force is weakened, the switching plate 11 is rotated in the closing direction by its own weight, the opening / closing lever 14 and the switching arm 23 are also rotated downward, and the auxiliary cover 29 approaches the switching plate 11. To turn.

  Subsequently, when the switching operation lever 16 is swung to the foremost position, the above-described evacuation / discharge state is established, the introduction port 9 of the cutter unit 8 is closed by the switching plate 11, and the auxiliary cover 29 is moved to the tip of the switching plate 11. By approaching or contacting the portion (front end portion), the waste that has been transported by the waste chain 7 into the cutter portion 8 from the gap formed near the tip of the switching plate 11 is prevented.

  FIG. 4 is a side view of the cutter unit in a state where the introduction port of the cutter unit is opened more than in the state of introducing the waste. In order to open the inlet 9 of the cutter unit 8 more than when the waste is introduced for maintenance of the cutter unit 8 or the like, pull the tip of the open / close lever 14 to the right (outward of the cutter unit 8), The engagement pin 23a is removed from the engagement hole 14a, and the engagement between the opening / closing lever 14 and the switching arm 23 is released.

  By releasing the engagement, the opening / closing lever 14 can be independently rotated regardless of the switching arm 23, so that the switching plate 11 can be moved to the evacuation introduction position regardless of the contact between the connecting rod 33 and the stopper member 34. The opening operation can be performed as described above. Then, when the introduction port 9 of the cutter unit 8 is further greatly opened by the opening / closing lever 14, the opening / closing lever 14 comes into contact with the stopper pin 39 described above, and the introduction port 9 of the cutter unit 8 is no longer opened. With the above configuration, the cutter unit 8 is prevented from being opened more than necessary.

  As shown in FIG. 4, when the opening / closing lever 14 and the stopper pin 39 are in contact with each other, the switching plate 11 is inclined rearward and upward, and the opening / closing lever 14 is rotated upward by its own weight. Since it is biased in the direction, the switching plate 11 is fixed by the contact of the opening / closing lever 14 and the stopper pin 39.

It is a side view of a combine to which the present invention is applied. It is a side view of the cutter part in the state where the side plate was covered with the cover body. It is a perspective view of the cutter part in the state where the side plate is not covered with the cover body. It is a side view of the cutter part in the state where the introduction port of the cutter part was opened more than in the waste introduction state.

Explanation of symbols

4 Driver's seat 8 Cutter part 9 Inlet (exhaust inlet)
11 Switching plate 14 Opening / closing lever 23 Switching arm

Claims (1)

  A cutter part (8) for cutting the waste conveyed from the threshing part, and a waste discharge state in which the waste introduction port (9) above the cutter part (8) is opened and closed to discharge the waste backward. And a switching plate (11) for switching to the state of introduction of the waste to be introduced into the cutter part (8), an opening / closing lever (14) provided integrally with the switching plate (11) and for opening and closing the switching plate (11). And a switching arm (11) that can be opened / closed to / from the driver's seat (4). 23), and the opening / closing lever (14) is configured to be capable of rotating in the opening direction of the switching plate (11) when the engagement with the switching arm (23) is released, and the switching arm (23) and the opening / closing lever (14). Is switched by the switching arm (23) when engaged. Discharging straw discharge position and straw discharge introduction position and switching operation Combine straw discharge processing apparatus for in.

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