JPH07322747A - Conveyor for discharged straw in combine - Google Patents

Abstract

PURPOSE:To provide a conveyor for discharged straw in a combine capable of improving workability in inspecting and maintaining a threshing cylinder and firmly fixing a vertically movable conveyor frame for discharged straw to a main body and suppressing the rolling, shaking, etc., of the conveyor as far as possible during a usual threshing operation. CONSTITUTION:A conveyor frame 14b for discharged straw is extended, in a top view, slantly backward from an exit side plate through an extended line of a fixed fulcrum shaft 22. A conveyor terminal is so constituted as to be freely and vertically rotatable around a starting end of the conveyor frame 14b. A stopper mechanism 33' controlling an upward movement of the conveyer frame 14b is detachably arranged between the conveyor frame 14b and a main body frame in the vicinity of the conveyer frame 14b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is constructed so that the conveying start end side of a straw conveying frame is moved up and down in conjunction with the vertical swing of a movable chamber movable frame which supports the treating cylinder. Although it is possible to improve the workability of inspection and maintenance of the straw transport device, it is possible to firmly hold the straw transport frame that can move up and down on the main body side during normal threshing processing work. The present invention relates to a straw conveying device in a combine, which can suppress rolling, vibration and the like of the straw conveying device as much as possible and can perform a smooth straw conveying operation.

[0002]

2. Description of the Related Art Conventionally, in combine harvesters for mowing threshing culms for threshing, a threshing cylinder having a large number of threshing treatment teeth around the outer circumference of a cylindrical threshing cylinder is rotationally driven in the handling chamber to thresh. The treated straw is discharged to the outside of the machine by the straw conveying device that extends diagonally rearward from the rear of the handling room toward the side of the machine and the cut land, or the above-mentioned straw conveying device It is configured to be dropped into a straw shredding device provided below the transport path. However, in the handling room and the straw conveying device configured as described above, it is easy for the waste dust to be entangled in the handling barrel in the threshing work for a long time, or the receiving net stretched under the handling room to be clogged. Similarly, straw entanglement also occurs in the straw transport chain that constitutes the transport device and the sandwiching rail that sandwiches straw between the bottom surface of the chain, and the series of work efficiency from threshing to straw transport is reduced. Therefore, it is desirable to perform regular inspections and maintenance for smooth combine threshing work.However, in such inspections and maintenance work, a handling room, a net and This involved a troublesome work such as disassembling and assembling the straw conveying device, and also having to make adjustments every time after reassembling, which requires high technology. Therefore, in order to solve the above-mentioned problems, the handling chamber is vertically divided into a handling chamber movable frame body and a handling chamber fixed frame body that swing up and down the handling chamber, and the handling body is moved to the handling chamber movable frame. It is proposed to rotatably support the handling chamber movable frame on the body side so as to improve the workability during inspection and maintenance of the handling barrel and the net by opening the body of the handling chamber movable frame. By configuring the transport start end side of the straw transport device to move vertically following the vertical movement of the body, a series of inspections from threshing to straw transport can be performed efficiently, but If the straw conveying device is configured to move up and down as described above, the clamping force of straw between the lower surface of the conveyor chain and the sandwiching rail that is wound around the straw conveyor frame during normal threshing processing work. , The rattling of the straw conveyor device itself, and easy to induce the occurrence of vibration, Impair the straw discharge conveying operation lubricity, it had a fear that.

[0003]

SUMMARY OF THE INVENTION The present invention was conceived in the research and development process of pursuing improvement of workability in the inspection and maintenance of combine harvesters in view of the above-mentioned circumstances, and the object thereof is to be achieved. Is capable of following the vertical movement of the movable frame of the handling chamber that pivotally supports the handling barrel and moving the straw transfer device up and down to improve the workability of inspection and maintenance. At the time of work, the straw transfer device can be firmly and surely held on the main body side, and thus the work efficiency of inspection and maintenance can be improved and the smooth straw transfer operation can be achieved at the same time. It is intended to provide a carrier device.

[0004]

In order to solve the above-mentioned problems, the technical means adopted by the present invention is an inlet side plate and an outlet side plate which are arranged side by side at a predetermined interval in the front and rear portions on the movable frame side of the handling chamber. The handling cylinder is rotatably supported between the handling chamber movable frame and the handling chamber movable frame, and the handling chamber fixed frame is supported by the handling chamber fixed frame so as to be vertically swingable and openable and closable to the outlet side plate. A straw transfer device in a combine, wherein the transfer start end side of the transfer frame is connected, and the transfer start end side of the straw transfer frame is configured to move up and down in conjunction with the vertical swing of the handling chamber movable frame, In a plan view, the straw conveying frame extends obliquely rearward from the outlet side plate on the extension line of the fixed fulcrum shaft, and the conveyance end side of the straw conveying frame can be rotated up and down about the conveyance start end side as a rotation center. And the upward movement of the straw transport frame is regulated That the stopper mechanism, is characterized in that it has disposed disengageably between the straw discharge conveyor frame and body frame of the vicinity.

[0005]

Therefore, according to the present invention, it is possible to easily remove the clogging of the transport straw in the straw transporting device in addition to the inspection and maintenance of the handling cylinder, the net and the like, and to move the handling chamber movable frame body. The straw-conveying device that accompanies the vertical movement of the can be firmly and surely held on the main body side during the threshing processing work, and a smooth straw-conveying operation can be maintained.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described in detail with reference to an embodiment shown in the drawings. In FIGS. 1 and 2, 1 is a threshing section provided on a machine (not shown), 2 is an oscillating sorting section, and the threshing section 1 is provided behind a reaping and carrying section (not shown) provided on the front side of the machine. In addition, the swing selection unit 2 is the threshing unit 1
Is provided below, and supplies the culm culm that is sent from the reaping and transporting unit to the grain culm supply port 1a formed in the threshing unit 1,
After threshing by the handling barrel 4 in the handling room 3, the grains and foreign substances that have leaked through the receiving net 5 fall on the swing flow plate 7 of the swing shelf 6 and the grains are crimped onto the crimp net 8. While further leaking downward through the, the contaminants are sent to the rear Straw rack 11 by the compressed air of the Kara9 and the turbo fan 10, and the foreign substances on the Straw rack 11 are sucked by the suction fan 12. The dust is discharged from the dust outlet 13 to the outside of the machine, and the upper side of the rocking sorting section 2 and the rear side of the threshing section 1 are exposed from one front side of the body to the rear side of the other side. The straw conveyor device 14 'around which the straw conveyor chain 14' is wound is horizontally slanted backward, and the tip end side of the cut culm conveyed from the front of the machine body via the reaping conveyor section is used as the threshing section 1. With the intervention, the stock side is fed back by the feed chain 15 and the sandwiching rail 16, and the straw carrying device is installed. Is configured to switch Tsugioku to the continuous release of the already calicivirus side a of the drop-inclusive and fuselage to straw discharge cutter device (not shown) the straw discharge to be Tsugioku to 14.

As shown in FIG. 3 to FIG. 5, the handling chamber 3 has a movable frame 19 for handling chamber which is formed by arranging an inlet side plate 18a and an outlet side plate 18b on both side surfaces of a cover case 17 at a predetermined interval. And a handling chamber fixed frame body 20 whose inner surface portion is bent along the outer periphery of the handling barrel 4, and a rotation which penetrates both side plates 18a and 18b in the handling chamber movable frame body 19. The handling cylinder 4 is rotatably supported via a shaft 21, and is fixed to the upper one side of the handling chamber fixing frame body 20 to pivotally support the rotation base end side of the handling chamber movable frame body 19. The fulcrum shaft 22 is mounted on the shaft, and as shown by the dotted line and the chain double-dashed line in FIGS. 3 and 4, the fixed fulcrum shaft 22 is moved upward and downward by operating the opening / closing lever 17a protruding on the open end surface side of the cover case 17. The movable frame 19 of the handling room is rocked up and down with the handling barrel 4 and the straw conveying device 14 around the center of rotation. It has a configuration which openably supported.

Further, the fixed fulcrum shaft 22 is provided on the outlet side plate 18
The straw-conveying device is extended from the rear surface of b to the rear straw-conveying device 14, and the tip portion thereof extends from the middle part of the straw-conveying device 14 to the conveyance end side 14a. The main body frame b is connected to the straw-conveying frame 14b constituting the main body 14, and a sliding rail 22 'is provided in a curved shape at an intermediate portion of the main body frame b. As shown in FIG. 6, the sliding rail 22 ′ has the transport end side 14 a.
From the rear end to the rear of the main body frame b, the extra length thereof is bent forward so as to reach the connection position to the main body frame b, and the pulley 23 is pivotally supported on the transfer end side 14a. The pulley 23 is movably supported on the slide rail 22 'to support the conveying end side 14a of the straw conveying device 14.

On the other hand, a reinforcing frame 24 made of a hollow pipe is rotatably provided in parallel with the straw conveying device 14 at the intermediate portion between the rear surface of the outlet side plate 18b and the straw conveying device 14. As shown in FIG. 5 described above, the base end side of the reinforcing frame 24 is axially mounted on the extending portion of the fixed fulcrum shaft 22 via the fixing bracket 22a, and the tip end thereof is attached via the mounting bracket 25. The reinforcing frame 2 is fixed to the outlet side plate 18b and moves when the handling chamber movable frame 19 swings up and down about the fixed fulcrum shaft 22 as a rotation center.
4 is configured to support the outlet side plate 18b from the side surface.

On the lower surface of the mounting bracket 25, there is attached an exhaust gear case 27 for rotationally driving the drive sprocket 26 pivotally supported on the transport start end side 14c of the straw transport frame 14b, and the outlet side plate 18b. A drive pulley 28 pivotally supported on the rotary shaft 21 and a straw gear case 27
Of the inlet side plate 18a by the transmission belt 30 wound around the transmission pulley 29 pivotally supported on the outlet side plate 18b on the input side of
The rotation driving force of the handling cylinder 4 transmitted from the side is transmitted to the straw discharging gear case 27 to drive the straw conveying device 14, and the rotation fulcrum shaft which penetrates the conveyance starting end side 14c of the straw conveying frame 14b. 27a is fixed to the side portion of the straw discharging gear case 27, and as shown in FIG. 10, the transport starting end side 14c of the straw transporting device 14 is disposed around the rotation fulcrum shaft 27a as a rotation center, and the handling chamber movable frame 19 is provided. It is designed to move up and down with the up and down swing.

Further, as shown in FIG. 7, a locking rod 31 bent in a stepped manner is fixed through the intermediate portion of the straw-conveying frame 14b, and is attached to the front end side of the locking rod 31. Are engaging fixtures 32 and 3 formed by expanding the lower sides 32a and 32a.
As shown in FIG. 8, the locking rods 31 are provided between the engaging fixtures 32, 32 on the distal end side of the extended fixed fulcrum shaft 22. The engagement receivers 33, 33 having the recesses 33a, 33a for supporting the rod portion 31a are fixed to form a stopper mechanism 33 '. Further, a hook 34 that engages with the rod portion 31a supported by the recesses 33a, 33a is rotatably mounted between the engagement receivers 33, 33 via a rotation operation shaft 35. By the link mechanism 36 interposed between the opening / closing lever 17a of the handling chamber movable frame 19 and the rotating operation shaft 35, the vertical operation force of the opening / closing lever 17a is transmitted to the rotating operation shaft 35 as a forward / reverse rotation force. It is configured to rotate the hook 34 with respect to the locking rod 31 toward the locking side and rotate toward the release side. In addition, 37 is a tension mechanism of the transmission belt 30, and 38 is a conveying end side 14a of the straw conveying frame 14b.
The driven sprocket is pivotally supported by, and 39 is a pinching rail that holds the straw with the lower surface of the straw conveying chain 14 '.

In the above-mentioned construction, the tip side of the cut grain culm which is supplied from the grain culm supply port 1a of the threshing section 1 into the handling chamber 3 remains conveyed while being held by the feed chain 15 at the plant base side. The threshing processing by the handling barrel 4 and the leaked kernels and foreign matters are subjected to a required screening processing by the rocking sorting section 2 through the receiving net 5, and the straw after the threshing processing is fed by the feed chain 1.
5 is continuously transferred to the straw conveying device 14 and dropped into a straw cutter device (not shown), or continuously discharged from the conveying end side 14a of the straw conveying device 14 to the outside of the machine.

During a series of operations from cutting and transporting to threshing and then to straw transport, straw waste is entangled with the handling barrel 4 and the receiving net 5 stretched below the handling chamber 3 is clogged. When it occurs, the handling chamber movable frame 19 in the normal threshing operation position shown in FIG. 1 is operated to move the opening / closing lever 17a upward as shown in FIG.
By opening the door, the straw conveying device 14 also has the pulley 2 on the conveying end side 14a with the rotation fulcrum shaft 27a as the rotation center.
3 is traveling on the sliding rail 22 ', and the transport starting end side 14
c can move up at the same time to inspect and maintain the inside of the handling chamber 3 and the straw conveying device 14, and as shown in FIG. 11, in the straw conveying device 14, the conveying start end side 14c is rotated. By moving the transport end side 14a upward as the fulcrum, the clogging of straw on the transport end side 14a can be easily removed, and both the handling chamber 3 and the straw transport device 14 can be easily and efficiently maintained. be able to.

In the upward movement opening operation of the handling chamber movable frame body 19 described above, the turning operation shaft 35 is moved through the link mechanism 36 by the turning force of the opening / closing lever 17a that is pulled upward. The hook 34 rotates in the direction of the arrow A, and the hook 34 also rotates in the direction of the arrow A in accordance with the rotation of the rotation operation shaft 35. The straw conveying device 14 quickly moves up together with the handling chamber movable frame body 19.

Further, when the opening / closing lever 17a is operated to be pulled down, the straw conveying device 14 is moved along with the downward movement of the handling chamber movable frame 19.
Is lowered to the normal straw conveying position, and the rod portion 31a of the locking rod 31 fixed to the straw conveying frame 14b is engaged with the engagement receiver 3.
At the same time as being supported by the recesses 33a, 33a of
By pulling down the opening / closing lever 17a, the hook 34 also rotates in the direction of arrow B in conjunction with the rotation operation shaft 35 that rotates in the direction of arrow B, and the hook 34 is locked to the rod portion 31a.

At this time, the engaging fixture 3 of the rod portion 31a.
2, 32 are fitted on the outer surface sides of the engagement receivers 33, 33, respectively, and the locking rod 31 is provided with a hook 34 in the vertical direction.
Since the movement is restricted by the engagement receivers 33, 33 in the horizontal direction, the movement of the straw conveying frame 14b to which the locking rod 31 is fixed in the vertical and horizontal directions is completely suppressed. Will be done. Therefore, in a normal threshing process operation, the straw conveying device 14 can be firmly and reliably fixed to the main body side through the fixed fulcrum shaft 22 connected to the main body frame b, and the straw conveying device 14 can be firmly fixed to the main body frame b. It is possible to prevent the defective conveyance in the above and the lateral movement and vibration of the straw-conveying device 14 itself, and to maintain the smooth straw-conveying operation.

[0017]

In summary, according to the present invention, the handling cylinder is rotatably supported between the inlet side plate and the outlet side plate which are arranged in parallel in the front and rear portions of the handling chamber movable frame side with a predetermined space therebetween, and the above-mentioned handling is performed. The movable chamber frame is supported on the handling chamber fixed frame body so as to be vertically swingable and openable and closable by using a fixed fulcrum shaft as a rotation fulcrum, while the outlet side plate is connected to the transport start end side of the straw transport frame, and the handling chamber movable frame is connected. A straw transfer device in a combine configured to vertically move the transfer start end side of the straw transfer frame in conjunction with the vertical swing of the body, wherein the straw transfer frame is a fixed fulcrum shaft from the outlet side plate in plan view. And extends diagonally rearward, and is configured such that the transport end side is vertically rotatable about the transport start end side of the straw transport frame and the upward movement of the straw transport frame is restricted. The stopper mechanism for Since it is arranged so that it can be detachably attached to the main body frame at a side position, the work chamber movable frame that pivotally supports the handling cylinder is moved up and down to improve the workability of inspection and maintenance of the handling cylinder, the net, etc. It is also possible to easily remove the clogging etc. of the transfer straw in the straw transfer device, but at the time of normal threshing processing, the straw transfer device can be firmly and surely Not only can it be firmly held on the side, but it can prevent smooth conveyance and vibration of the straw-conveying device itself, and can maintain a smooth straw-conveying operation. The straw conveyor device can be automatically locked and unlocked in conjunction with the vertical opening / closing operation of the machine, which significantly reduces the burden on the operator, improves the work efficiency of inspection and maintenance, and facilitates smooth discharge. It is extremely useful because it can be compatible with straw transport operation. It is intended to achieve the Tadashiteki effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a combine.

FIG. 2 is an operation explanatory view showing the operation of each part of the combine.

FIG. 3 is a partially omitted front view of a threshing unit.

FIG. 4 is a partially omitted rear view of the threshing unit of the above.

FIG. 5 is a plan view of an essential part of the same.

FIG. 6A is an operation explanatory view showing a supporting state of the end of conveyance of the straw conveying device at the time of work. (B) is an operation explanatory view showing a supporting state on the transport end side when the transport start end side is moved upward.

FIG. 7 is a perspective view of an essential part showing a mounting state of a straw conveying frame and a locking rod.

FIG. 8 is a perspective view of a main part showing a configuration of an engagement receiver, a hook, and a fixed fulcrum shaft.

FIG. 9 is a perspective view of an essential part showing a locked state of a locking rod and a fixed fulcrum shaft.

FIG. 10 is a perspective view of an essential part showing an open state of the handling chamber movable frame.

FIG. 11 is an operation explanatory diagram showing a case where the conveyance end side is moved upward with the conveyance start end side as a rotation center.

[Explanation of symbols]

 4 Handling Cylinder 14 Straw Conveying Device 14a Conveying Starting End Side 14b Straw Conveying Frame 14c Conveying Starting End Side 18a Entrance Side Plate 18b Exit Side Plate 19 Handling Room Movable Frame 20 Handling Room Fixed Frame 22 Fixed Support Shaft 31 Locking Rod 32 Engagement Fixture 33 Engagement receiver 33 'Stopper mechanism 34 Hook

Claims (3)

[Claims] 1. A handling barrel is rotatably supported between an inlet side plate and an outlet side plate, which are arranged side by side at a predetermined interval on the front and rear portions of the handling chamber movable frame, and the handling chamber movable frame is fixed as a fulcrum. The shaft is used as a fulcrum to vertically swing and support the handling chamber fixed frame, while the outlet side plate is connected to the transport start end side of the straw transport frame to interlock with the vertical swing of the handling chamber movable frame. A straw conveying device in a combine configured to vertically move the conveying start end side of the straw conveying frame, wherein the straw conveying frame passes from the outlet side plate on the extension line of the fixed fulcrum shaft in plan view. The stopper mechanism that extends obliquely rearward and is configured to be vertically rotatable around the transport start end side of the straw transport frame as a rotation center and that regulates the upward movement of the straw transport frame is Between the straw carrying frame and the main frame A straw conveying device in a combine, characterized by being disengageably disposed between them. 2. A handling barrel is rotatably supported between an inlet side plate and an outlet side plate, which are arranged in parallel in the front and rear portions of the handling chamber movable frame side with a predetermined interval, and the handling chamber movable frame body is a fixed fulcrum. The shaft is used as a fulcrum to vertically swing and support the handling chamber fixed frame, while the outlet side plate is connected to the transport start end side of the straw transport frame to interlock with the vertical swing of the handling chamber movable frame. A straw conveying device in a combine configured to vertically move the conveying start end side of the straw conveying frame, wherein the straw conveying frame passes from the outlet side plate on the extension line of the fixed fulcrum shaft in plan view. The stopper mechanism that extends obliquely rearward and is configured to be vertically rotatable around the transport start end side of the straw transport frame as a rotation center and that regulates the upward movement of the straw transport frame is Between the straw carrying frame and the main frame A straw transfer device in a combine, which is arranged between the operation chamber movable frame and the opening operation restriction of the stopper mechanism in connection with the opening operation of the movable frame body. 3. A handling barrel is rotatably supported between an inlet side plate and an outlet side plate, which are arranged in parallel in the front and rear portions of the handling chamber movable frame side with a predetermined interval, and the handling chamber movable frame body is a fixed fulcrum. The shaft is used as a fulcrum to vertically swing and support the handling chamber fixed frame, while the outlet side plate is connected to the transport start end side of the straw transport frame to interlock with the vertical swing of the handling chamber movable frame. A straw conveying device in a combine configured to vertically move the conveying start end side of the straw conveying frame, wherein the straw conveying frame passes from the outlet side plate on the extension line of the fixed fulcrum shaft in plan view. While extending diagonally rearward, the transport end side of the straw transport frame is configured to be rotatable up and down with the transport start end side as a center of rotation, while an engaging fixing tool is provided at an intermediate portion and a tip end portion of the straw transport frame. The locking rod formed by arranging the At the same time, the fixed fulcrum shaft is extended to the vicinity of the straw conveying frame, and the tip of the fixed fulcrum shaft is provided with an engagement receiver for supporting the engagement fixture and a hook for locking the locking rod. A straw conveying device in a combine, comprising a straw conveying frame configured to be detachably fixed to a fixed fulcrum shaft.