JPH07312973A - Waste straw transfer apparatus of combine - Google Patents

Abstract

PURPOSE:To provide a waste straw transfer apparatus capable of easily removing clogging waste straw, etc., and having improved efficiency of inspection and maintenance works by making the delivery end of a waste straw transfer frame to be freely tiltable in vertical direction around the receiving end of the transfer frame and placing a stopper for restricting the lower limit position of tilting. CONSTITUTION:A threshing drum 4 is rotatably supported between an inlet-side plate 18a and an outlet-side plate 18b parallelly placed at the front and the rear parts of a mobile frame of a threshing part interposing a prescribed space between the plates. The mobile frame of the threshing chamber is supported on a fixed frame of the threshing chamber in a state freely tiltable in vertical direction. A waste straw transfer chain is wound around a waste straw transfer frame 14b slantly extending backward from the outlet-side plate 18b. The delivery end 14a of the waste straw transfer frame 14b is made to be tiltable in vertical direction around the receiving end 14c when the waste straw threshed in the threshing drum 4 is transferred to the back of the machine body by a straw and dust discharging chain. A stopper 24' to restrict the lower limit of the tilting motion of the delivery end 14a is placed on the delivery end 14a of the waste straw transfer frame 14b. Preferably, a sliding rail 22' is attached to the main frame near the delivery end 14a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for conveying straws in a combine, and more particularly, when the apparatus for conveying straws is moved up and down independently of a movable frame of a handling chamber that opens and closes. Concerning the straw conveying device in a combine, which can easily remove the clogging of the generated waste culms and waste chips and can reliably hold the lower limit position of the vertically moving straw conveying device in a fixed position Is.

[0002]

2. Description of the Related Art Conventionally, in combine harvesters for mowing and removing threshing culm culms, a threshing cylinder having a large number of threshing treatment teeth around the outer circumference of a cylindrical threshing cylinder is driven to rotate in the handling chamber. And threshing is performed. However, in the handling room with the above-mentioned configuration, it is easy for threshing work for a long time to get entangled with the waste, or to cause clogging of the receiving net stretched under the handling room, thus reducing the efficiency of the threshing process. Therefore, even when the inside of the handling room is inspected and maintained, the handling cylinder or the receiving net must be removed, and re-installation is required. 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, and the handling barrel is rotatably supported on the handling chamber movable frame side, A structure has been proposed in which the movable frame of the handling room is opened upward to improve workability during inspection and maintenance work. In the above configuration, in order to improve workability in inspection and maintenance work, the straw conveying device is moved up and down following the vertically moving handle room movable frame, and clogging such as conveyance straw is generated. However, in order to remove the clogging in the straw transfer device, the straw transfer device should be used even when inspection or maintenance of the handling barrel or the net is unnecessary. It must be moved up together with the handling room movable frame,
Not only does it impose a great burden on the operator, but since the transport start end side moves up and down with the transport end side as the pivot point, it is difficult to remove the transport straw at the transport end side. It was something that had.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above situation to solve the drawbacks of the prior art, and its purpose is to move a handling chamber for pivotally supporting a handling cylinder. Although the straw transfer device can be moved up and down by following the frame to improve the workability of inspection and maintenance, the transfer end side is rotated up and down around the transfer start end side for transfer. Conveyance straw can be easily removed at the end side, and the conveyance end side that rotates up and down during straw conveyance can be reliably positioned at the lower rotation limit position, thus improving the efficiency of inspection and maintenance work. It is an object of the present invention to provide a combine straw discharge device that can achieve both improved and smooth straw transfer operation.

[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 and the handling chamber movable frame, and the handling chamber fixed frame is supported by the handling chamber fixed frame so that the handling chamber can be vertically swung open / closed. When the straw transport chain is wound around, and the straw that has been threshed by the handling barrel is transported to the rear of the machine through the straw transport chain, the transport start side of the straw transport frame is the rotation center side. Is vertically rotatable, and a stopper for restricting the rotation lower limit position on the end side of the straw-conveying frame is provided on the end side of the conveyance.

[0005]

Therefore, according to the present invention, it is possible to easily remove the clogging of the transport straw in the straw transporting device, as well as the inspection and maintenance of the handling cylinder, the net, etc. The transport end side of the transport device can be reliably positioned at the lower rotation limit position, and smooth and reliable transport operation of straw 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 drop-inclusive and outside of the 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 chamber fulcrum shaft 22 is used as the center of rotation to move the handling chamber movable frame 19 to the handling barrel 4 and the straw transfer. It is configured to support the device 14 so as to be vertically swingable and openable and closable.

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 extra length portion is between the middle part of the straw conveying device 14 and the conveying end side 14a. 1
5 is formed on the fixed fulcrum shaft 22 that is bent along the straw-conveying frame 14b that forms part 4 of FIG.
And as shown in FIGS. 6 (a) and 6 (b), the sliding rail 22 '.
Is formed in a curved shape, and a stopper 24 'is formed by movably supporting a pulley 24 axially supported on the transfer end side 14a on a slide rail 22'.
The transport end side 14a of the straw transport device 14 is supported via the.

On the other hand, a reinforcing frame 23 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 23 is axially mounted on the extending portion of the fixed fulcrum shaft 22 via the fixing bracket 22 a, 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.
3 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 a straw 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, as shown in FIG. A drive pulley 28 axially supported by the rotary shaft 21 of the outlet side plate 18b;
The rotation driving force of the handling cylinder 4 transmitted from the inlet side plate 18a side is transferred by the transmission belt 30 wound between the input side of the exhaust side gear case 27 and the transmission pulley 29 pivotally supported on the outlet side plate 18b. 27, the straw conveying device 1
4, a rotation fulcrum shaft 27a that penetrates the conveyance start end side 14c of the straw discharge frame 14b is fixed to a side portion of the straw gear case 27.
7a is used as a fulcrum, and the transport start end side 14c of the straw transport device 14 is moved up and down as the handling chamber movable frame 19 is vertically swung.

Reference numeral 31 is a tension mechanism of the transmission belt 30, 32 is a driven sprocket axially supported on the conveying end side 14a of the straw conveying frame 14b, and 33 is discharged between the lower surface of the straw conveying chain 14 '. It is a pinch rail that holds the straw.

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. In the case of occurrence, as shown in FIG.
Is operated to open the handling chamber 3 from the side of the feed chain 15, so that the inside of the handling chamber 3 can be easily inspected and maintained. At this time, the transport start end side 14 of the straw transport device 14
c also moves up at the same time, so that both the handling room 3 and the straw transfer device 14 can be easily and efficiently maintained.

FIG. 7 shows how to perform the inspection and maintenance of the straw conveying device 14 when the handling barrel 4 and the receiving net 5 do not need to be inspected and maintained and the handling chamber movable frame 19 is not opened. As described above, with the rotation fulcrum shaft 27a on the transport starting end side 14c as the rotation fulcrum,
The worker simply pushes up and rotates the transport end side 14a of the straw transport device 14 to easily remove the clogging of the straw transport chain 14 'and the transport straw entwined with the pinch rail 33. Therefore, the burden on the operator can be significantly reduced.

Further, when the inspection and maintenance work by vertically rotating the transport end side 14a as described above is completed, the push-up transport end side 14a is lowered to support the pulley 24 on the slide rail 22 '. Only by doing so, the transport end side 14a can be localized at the proper lower rotation position, and the straw transport device 14 can be smoothly and reliably returned to the straw transport operation state. In addition, in the present embodiment, the handling chamber movable frame 1
In the state in which 9 is not opened, the conveying end side 1 of the straw conveying device 14
Although the case where 4a is moved upward is shown, the present invention is not limited to this, and the handling chamber movable frame 19 and the conveyance start end side 14 shown in FIG.
It is needless to say that the inspection and maintenance can be performed by moving the conveyance end side 14a upward as shown in FIG. 7 while maintaining the upward movement state of c.

[0016]

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. While supporting the movable chamber frame on the handling chamber fixed frame so that it can be vertically swung open and closed,
The straw transport chain is wound around the straw transport frame that extends obliquely rearward from the outlet side plate, and the straw that has been threshed by the handling barrel is transported to the rear of the machine body through the straw transport chain. The transport end side of the transport frame is vertically rotatable about the transport start end side of the transport frame, and a stopper is provided on the transport end side of the straw transport frame to regulate the rotation lower limit position of the end side. Without moving the movable frame of the chamber up and down, simply push up and rotate the end of the conveyor of the straw conveyor to remove the straw and the conveyor straw that is entangled with the trapping rail. Since the work can be performed easily and both the transport start side and the transport end side of the straw transport device can be opened depending on the content of the removal work, the burden on the operator can be greatly reduced. Not only can it be turned upside down When the inspection and maintenance work is completed, the transport end side that was pushed up can be lowered, and the transport end side can be positioned at the proper lower limit position of rotation. The present invention has an extremely useful new effect that it is possible to return to the straw transfer operation state, and it is possible to improve both the work efficiency of inspection and maintenance and the smooth straw transfer operation at the same time.

[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. FIG. 7B 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 an operation explanatory view showing a state in which the conveyance end side is moved upward with the conveyance start end side as a rotation center.

FIG. 8 is a perspective view of a main part of the combine with the movable frame of the handling chamber opened.

[Explanation of symbols]

 4 Handling Cylinder 14 Straw Conveying Device 14 'Straw Conveying Chain 14a Conveying 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 24 Pulley 24 'Stopper 22' Sliding rail

Claims (2)

[Claims] 1. A handling cylinder is rotatably supported between 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 of the handling chamber movable frame, and the handling chamber movable frame is handled by the handling chamber. While supporting the fixed frame body to swing up and down and open and close freely, the straw transport chain is wound around the straw transport frame that extends obliquely rearward from the exit side plate, and the straw that has been threshed by the handling barrel is transported to straw. When transporting to the rear of the machine through the chain, the transport end side is vertically rotatable about the transport start end side of the straw transport frame, and the end side of the straw transport frame is transport end side. A straw conveying device in a combine, which is provided with a stopper for regulating a lower limit position of rotation of the. 2. The handling chamber movable frame is rotatably supported between an inlet side plate and an outlet side plate that are arranged in parallel in the front and rear portions of the handling chamber movable frame side with a predetermined interval. While supporting the fixed frame body to swing up and down and open and close freely, the straw transport chain is wound around the straw transport frame that extends obliquely rearward from the exit side plate, and the straw that has been threshed by the handling barrel is transported to straw. When transporting to the rear of the machine through the chain, the transport end end side is vertically rotatable about the transport start end side of the straw transport frame, and a slide rail is attached to the main body frame near the transport end side. In addition to the attachment, a pulley running on the slide rail is pivotally supported on the transport end side of the straw transport frame to form a stopper for restricting the lower rotation limit position of the end side. Straw carrier.