JPH0889062A - Waste straw conveyer in thresher - Google Patents

Abstract

PURPOSE: To provide the subject conveyer designed to make its vertical motion smoothly together with a threshing chamber case and capable of smoothly conveying waste straw onto the ground where a reaping operation has been completed. CONSTITUTION: A threshing chamber case and this waste straw conveyer 14 are mutually linked so as to make vertical motions together with a support shaft 22 as revolving support, the terminal end side of the conveyer 14 is passed along the line extended from the support shaft 22 and extends slantly backward when viewed from the top, and this conveyer is flexibly supported so as to be allowed to move, through a support mechanism 50, in the extended direction of a waste straw conveyance frame 14b and also allowed to vertically revolve and tilt sideways.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a straw conveying device for a thresher that can be mounted on a combine, a harvest and the like.

[0002]

2. Description of the Related Art Conventionally, as a thresher mounted on a combine or the like, as disclosed in, for example, Japanese Patent Application Laid-Open No. 6-22630, a threshing machine case in which a sling barrel is rotatably supported is used as a fulcrum of the threshing machine body. It is known that the shaft is pivotally supported so that it can be pivoted up and down. According to the structure of the above-mentioned publication, a straw transporting device that transports threshing-treated straw in a diagonal direction toward the rear cut land side, and a terminal end portion of the straw transporting device with respect to the rotation fulcrum shaft. In the state of being installed in the front position, the starting end side is supported by the transmission mechanism, and the middle part is integrally fixed and supported by the support frame extending rearward from the handling room case, and the handling room case is turned upward. When this happens, the straw conveyor is moved up together with the straw conveyor to open the inside of the handling room and the straw conveyor so that maintenance work such as cleaning and maintenance inspection can be performed easily. I am configuring.

[0003]

By the way, in the above-mentioned conventional structure, the straw conveying device is moved upward together by rotating the casing case upward, and threshing of the treating chamber and the straw conveying device portion is performed. It is intended to facilitate maintenance such as removal of foreign matter and clogging of straw, but since the straw carrier is integrally fixed and supported with the handling room case, its end part is not supported by the handling room case. There is a drawback in that it cannot extend backward beyond the fulcrum axis. That is, if the end portion of the straw conveying device is made longer rearward than the rotation fulcrum shaft, when the straw conveying device moves upward together with the handling chamber case, the end portion moves downward about the rotation fulcrum shaft. Since it will be rotated downward, it will contact the rear top plate of the thresher or a culm processing device such as a straw cutter, which will limit the upward movement of the handling room case and damage the contacting parts. Therefore, since the straw transporting device is configured to be short like the one disclosed in the official gazette, it is not possible to sufficiently transport the straw toward the already-cutted land side, and for example, the straw cut by the culm processing device is removed. There is a problem that it becomes insufficient to properly drop and discharge to the uncut land side, which makes smooth cutting and threshing work difficult. Therefore, the present invention provides a straw transporting device having a sufficient length that enables the straw to be discharged to an appropriate position on the already-cutted land side by flexibly supporting the end portion of the straw transporting device, and performs a good maintenance work. It is an object of the present invention to provide a straw conveying device in a threshing machine capable of performing the above.

[0004]

In order to achieve the above object, a straw conveying device in a threshing machine according to the present invention has a handling barrel rotatably supported between an inlet side plate and an outlet side plate of a handling room case. While supporting the handling chamber case in a vertically swingable manner on the machine body by using a fulcrum shaft as a fulcrum, a transport starting end side of the straw transport frame is attached to the outlet side plate and vertically moved integrally with the handling chamber case. In the threshing machine configured as above, the terminal end side of the straw conveying frame is passed from the outlet side plate on the extension line of the fulcrum shaft in a plan view and extends obliquely rearward to be supported by the supporting mechanism, and the supporting mechanism is also used for conveying the straw. The handling room case is composed of a support link that can be bent in a direction that allows the frame to move in the extending direction and a universal joint that allows upward movement of the straw transfer frame and tilting to the side. Rotated upward around the fulcrum shaft, When straw conveyor frame moves upward the conveyance starting side as the pivot center, it is characterized in that flexible supporting the its transfer terminal end side.

[0005]

With the above configuration, the handling room case 19 is used as the fulcrum shaft 2.
When it is moved up around 2, the straw transfer device 14 is moved up while the transfer end side 14a is flexibly supported at a predetermined position by the support mechanism 50, and the rear upper part of the handling chamber 3 and the thresher is opened. Therefore, the maintenance work of this part can be easily performed. At this time, based on the upward movement rotation of the straw conveying device 14, the support mechanism 50 allows the conveying end side 14a to be displaced and rotated in the extending direction, so that the upward movement of the straw conveying device 14 is increased. The rotation can be performed smoothly.
Further, since the transport end side 14a of the straw transfer device 14 does not come into contact with the threshing machine body or the culm processing device c during the upward rotation, the straw transfer device 14 extends rearward as desired from the fulcrum shaft 22. Therefore, the straw can be satisfactorily discharged to the already cut land side.

[0006]

Embodiments of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, 1 is a thresher that can be mounted on a traveling machine such as a combine, 2 is an oscillating sorting section, and the thresher 1 is located behind a cutting section (not shown) provided in front of the machine. Is arranged,
Further, the swing selecting section 2 is provided below the threshing machine 1,
After feeding the cut grain culm to the grain culm supply port 1a formed in the threshing machine 1 and performing the threshing process by the handling barrel 4 in the handling room 3, the grains and foreign substances leaked through the receiving net 5 are , The grains fall to the rocking flow plate 7 of the rocking shelf 6 and further leak downward through the crimp net 8, while the impurities are separated by the blower fan 9 and the sub blower fan 10 to the rear straws. The contaminants sent to the rack 11 are adapted to be sucked by the suction fan 12 and discharged from the dust outlet 13 to the rear outside the machine.

Further, above the swing selecting section 2 and behind the threshing machine 1, there is provided a straw conveying device 14 in which a waste manure chain 14a is wound so as to face from the front of one side of the machine to the rear of the other side. With the tip side of the grain culm being cut and conveyed from the front of the machine intervening in the thresher 1, the stocker side is fed back by the feed chain 15 and the sandwiching rail 16, The straw is transferred to the straw transfer device 14 and supplied to the culm cutter (culm disposal device) C mounted on the rear part of the threshing machine 1, and the cut straw is appropriately applied to the cut-aside a of the machine body. I'm trying to release it.

The handling chamber 3 is, as shown in FIGS.
A handling room case 19 in which an inlet side plate 18a and an outlet side plate 18b are arranged side by side at predetermined intervals on both sides of the cover case 17.
And a handling chamber fixing frame body 20 whose inner surface is bent along the outer periphery of the handling barrel 4, and the handling chamber case 19 is formed.
The handling cylinder 4 is rotatably supported in the inside through a rotary shaft 21 penetrating both side plates 18a and 18b, and the handling chamber case 19 is provided on one side of the upper portion of the handling chamber fixing frame 20. A fulcrum shaft 22 that pivotally supports the rotation base end side of
As shown by a dotted line and a chain double-dashed line in FIG.
The handling chamber case 19 is supported together with the handling barrel 4 and the straw conveying device 14 so as to be swingable up and down.

The fulcrum shaft 22 is extended from the rear surface of the outlet side plate 18b to the rear straw conveying device 14, and the tip end of the fulcrum shaft 22 constitutes the straw conveying device 14. While facing the frame 14b, a main body frame b along the straw conveying frame 14b constituting the straw conveying device 14 is connected, and an end portion of the straw conveying frame 14b is accommodated in an intermediate portion of the main body frame b. A supporting mechanism 50 that supports the supporting chamber 50 is mounted, and the handling chamber case 19 is attached to the fulcrum shaft 2
When the straw-conveying frame 14b is rotated upward about 2 and moves upward with the conveyance start end side 14c as the rotation center, the movement of the conveyance end side 14a is allowed and the downward movement is allowed. It supports to prevent it without increasing it.

That is, as shown in FIG. 6, the support mechanism 50 is bendable in a direction that allows the straw-conveying frame 14b to move in the extending direction, and regulates the movement of the straw-conveying frame 14b in the vertical direction. The support link 51 for supporting and the universal joint 52 composed of a pillow ball joint or a universal joint or the like that allows upward movement of the straw-conveying frame 14b and tilting to the side. Then, the base portion of the support link 51 is fixed to the main body frame b, and the mounting tool 54 projectingly formed on the ball 53 of the universal joint 52 attached to the other end portion of the support link 51 is attached to the straw conveying frame 14b. It is detachably attached to a mounting bracket 55 at the tip of a locking rod 31 which will be described later and is fixed to the side surface of the terminal end of the.

As a result, the handling chamber case 19 is pivoted upward about the fulcrum shaft 22, and when the straw transport frame 14b is pivoted about the transport start end side 14c, the transport end side 14a is moved. It can be flexibly supported while controlling the descending movement, and enables smooth operation without contacting the transport end side 14a with the rear top plate 1t of the threshing machine 1 or the culm processing device c, It is possible to extend the transport end side 14a rearward of the fulcrum shaft 22 as desired, and it is possible to satisfactorily discharge the straw to the already-cutted land side, thereby performing a highly efficient combine operation. it can.

On the other hand, a reinforcing frame 24 composed 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 extension portion of the fulcrum shaft 22 via a bracket 22 a, and the tip end thereof is fixed via a fixed bracket 25 to the outlet. The handling chamber case 1 is fixed to the side plate 18b and has the fulcrum shaft 22 as the center of rotation.
When the 9 swings up and down, the reinforcing side frame 24 is configured to support the outlet side plate 18b from the side surface.

On the lower surface of the fixed 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. The rotation driving force of the handle barrel 4 transmitted from the outlet side plate 18b at the input side of the drive pulley 28 and the straw gear case 27 pivotally supported by the rotating shaft 21 is transmitted to the straw gear case 27, and the straw conveyor device 14 is provided. And the straw-carrying frame 14b.
A rotation fulcrum shaft 27a penetrating the conveyance start end side 14c is fixed to a side portion of the straw gear case 27, and as shown in FIG. The transport starting end side 14c is moved up and down as the handling chamber case 19 is swung up and down.

Further, as shown in FIGS. 7 to 9, the locking rod 31 described above is bent and fixed to an intermediate portion of the straw conveying frame 14b, and the front end side of the locking rod 31 is fixed. On the bottom 3
Engaging fixtures 32, 32 formed by expanding 2a, 32a are arranged at a predetermined interval, and the fulcrum shaft 22 is extended.
The locking rod 3 is provided between the engaging fixtures 32, 32 on the tip side of the
The engaging members 33, 33 having the recesses 33a, 33a for supporting the first rod portion 31a are fixed to form the stopper mechanism S.

Further, the hook 34 which engages with the rod portion 31a supported by the recesses 33a, 33a is provided with a turning operation shaft 35.
The stopper mechanism S, which is mounted between the engagement receivers 33 and 33 via the opening / closing lever 17a (FIG. 4) of the handling chamber case 19 and the rotary operation shaft 35, opens / closes the door. The vertical operation force of the lever 17a is transmitted to the rotation operation shaft 35 as a forward / reverse rotation power, and the hook 34 is rotated with respect to the locking rod 31 to the locking side and to the releasing side. Has been done. 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 rotatably supported by and the reference numeral 39 is a sandwiching rail for sandwiching the straw with the lower surface of the straw conveying chain 14d. (Figure 10)

In the above-mentioned construction, the tip end side of the cut grain culm which is supplied from the grain culm supply port 1a of the threshing machine 1 into the handling chamber 3 remains conveyed while being held by the feed chain 15 at the plant side. The threshing process is performed by the handling cylinder 4, and the leaked grains and foreign matters are subjected to a required screening process by the swing screening unit 2 through the receiving net 5, and the straw after the threshing process is fed by the feed chain 15.
Is continuously transferred to the straw conveying device 14 and fed to the straw cutter C to be disconnected and discharged.

In such threshing work, when the waste straw is entangled with the handling barrel 4 or the receiving net 5 stretched under the handling chamber 3 is clogged, the normal threshing work shown in FIG. 1 is performed. As shown in FIG. 10, the handling chamber case 19 at the position is operated to open so that the handling chamber 3 is opened from the side of the feed chain 15 by operating the open / close lever 17a. At this time, the stopper mechanism S is operated, the rotation operation shaft 35 rotates in the direction of arrow A, and the hook 34 rotates in the direction of arrow A, so that the locking between the hook 34 and the locking rod 31 is released. As a result, the straw conveying device 14 can be switched to a free state, and the straw conveying device 14 can be quickly moved up together with the handling room case 19.

By the above operation, the handling room case 19 is moved to the fulcrum shaft 2
When moved upward about 2, the straw-conveying device 14 is simultaneously moved upward while the conveyance terminating side 14a is flexibly supported by the support mechanism 50 with the rotation fulcrum shaft 27a as a pivot action point. Since the upper parts of the rear top plate 1t, the holding rail 39, and the like can be opened, the inside of the handling chamber 3 and the straw transfer device 1 can be opened.
4. Inspection, maintenance, etc. can be easily performed. On the basis of the upward rotation of the straw conveying device 14 as described above, the conveying end side 1
4a, while being supported by the support mechanism 50, is allowed to undergo displacement movement in the extending direction thereof by the refraction link 51, and rotation and inward displacement is permitted by the universal joint 52. It is possible to smoothly perform the upward movement rotation of the straw conveying device 14 without lowering the lever and without twisting the connection portions of the rotation fulcrum shaft 27a and the main body frame b and the like.

Accordingly, since the end-of-transport side 14a of the straw conveying device 14 does not come into contact with the threshing machine body or the culm treatment device c when it is rotated upward, the straw conveying device 14 is desirably extended rearward of the fulcrum shaft 22. Since it can be configured to be discharged, it is possible to easily discharge the straw properly to the already-cutted land side, which enables a high-performance combine operation. After the maintenance work is completed as described above, by pulling down the opening / closing lever 17a, the handling chamber case 19 is moved, and at the same time, the straw-conveying device 14 is lowered to the normal straw-conveying position and the hook 34 is moved. Also returns to the direction of arrow B in the opposite direction to the above and rotates to the locking rod 3
1, the straw conveying device 14 is fixed to the original stable supporting state, and a good straw conveying work can be performed again.

Incidentally, in the above embodiment, the support joint between the main body frame b and the straw-conveying frame 14b is detachably attached by the attachment 54 through the support mechanism 50. Therefore, this is released. By doing so, as shown in FIG. 11, the straw conveying device 14 can rotate the conveyance end side 14a upward with the rotation fulcrum shaft 27a as the rotation fulcrum, which makes maintenance work in this part more convenient. There are advantages that can be done to. Further, in the embodiment, the straw conveying device 14
The support in the normal transport state is performed by the locking rod 31 provided with the stopper mechanism S.
By providing sufficient rigidity to the locking rod 3 so that it is directly joined to and supported by the straw conveying frame 14b.
1 may be eliminated, and in this case, the support mechanism 50 may be provided with a stopper mechanism having an appropriate configuration capable of switching between the rotating state and the non-rotating state of the straw conveying frame 14b.

[0021]

Since the present invention is configured as described above, it has the following effects. Following the vertical movement of the handling chamber case that pivotally supports the handling barrel, it can be moved up and down together with the straw conveying device to open the lower part of the net and the straw conveying device. Maintenance workability such as maintenance can be improved. When the straw conveying device is moved upward, the conveying end side is supported by the support mechanism and displacement such as displacement movement and rotation in the extension direction is allowed. Without lowering or twisting the connection parts such as the rotation fulcrum shaft and the main body frame, the upward movement rotation of the straw conveying device can be smoothly performed, and the straw can be moved to the proper position on the already cut ground side. It is possible to provide a straw transporting device having a sufficient length so that it can be discharged, and to provide a straw transporting device for a thresher capable of performing a high-performance combine operation.

[Brief description of drawings]

FIG. 1 is a perspective view of a thresher having an embodiment of the present invention.

FIG. 2 is a side view showing the operation of the thresher.

FIG. 3 is a partially omitted front view of the thresher.

FIG. 4 is a rear view of FIG.

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

FIG. 6A is a plan view showing a support mechanism of the straw conveying device. FIG. 6B is a side view showing the configuration of the support mechanism of FIG. FIG. 6C is a side sectional view of the support mechanism of FIG.

FIG. 7 is a perspective view of essential parts showing 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 fulcrum shaft.

FIG. 9 is a perspective view of a main part showing a configuration of a locking rod and a fulcrum shaft.

FIG. 10 is a perspective view of a main part showing an open state of a handling room case.

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

[Explanation of symbols]

 1 Threshing Machine 14 Straw Conveying Device 14a Conveying End Side 14b Straw Conveying Frame 14c Conveying Starting End 18a Entrance Side Plate 18b Exit Side Plate 19 Handling Room Case 20 Handling Room Fixed Frame 22 Support Point Shaft 50 Locking Rod 50 Supporting Mechanism 51 Support Link 52 Universal joint b Body frame

Claims (1)

[Claims] 1. A handling cylinder is rotatably supported between an inlet side plate and an outlet side plate of a handling room case, and the handling room case is supported by the machine body in a vertically swingable manner with a fulcrum shaft as a fulcrum. While doing
In a thresher in which the transport start end side of the straw transport frame is attached to the outlet side plate and vertically moved integrally with the handling chamber case, the end side of the straw transport frame is extended from the outlet side plate to the fulcrum shaft in plan view. Above the straw-carrying frame, a support link that extends diagonally rearward through the line and is supported by a support mechanism and that can bend the support mechanism in a direction that allows the straw-carrying frame to move in the extending direction, The handling chamber case is pivoted upward about the fulcrum shaft, and the straw transport frame is raised about the transport start end side. A straw transfer device in a threshing machine, which supports the transfer end side thereof so as to be flexible when moving.