JP2002354936A - Discharged straw transporting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharged straw transporting apparatus facilitating the maintenance work e.g. in the case of the clogging of discharged straw between a discharged straw transporting chain and a discharged straw clamping guide. SOLUTION: Discharged straw threshed by a thresher 20 is received from a feed chain 23 and transported to a discharged straw treating apparatus 17 by a discharged straw transporting apparatus 16. In the discharged straw transporting apparatus having the above function, a chamber guide to cover the top of the thresher is integrated with a discharged straw transporting cover covering the top of the discharged straw transporting apparatus to form an upper cover 60, the turning pivot 66 of the upper cover is positioned opposite to the feed chain, a turn-supporting frame 12a is protruded from the discharged straw transporting frame 12 of the transporting chain constituting the transporting apparatus, the turn-supporting frame is turnably supported on a discharged straw chain supporting frame 54 extended from the machine body and a locking mechanism 7 is placed near the supporting part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine straw discharging and conveying apparatus.

[0002]

2. Description of the Related Art Conventionally, there has been known a straw conveying device which can easily remove straw when the straw is clogged between the straw trapping guide and the straw conveying chain. For example, the technology disclosed in Japanese Patent Application Laid-Open No. 2001-36, discloses a left and right reinforcing frame that is attached to the rear side plate of the threshing chamber and extends in the direction of the straw, outside the threshing section of the threshing chamber. Between the left and right reinforcement frames, a base frame is attached to the reinforcement frame located on the tip side of the straw so as to be freely rotatable up and down, and a support frame in which the tip portion is detachably locked to the reinforcement frame on the stock side. And a straw transport chain is attached to the support frame, and the support frame and the straw transport chain can be integrally moved upward. Further, the technology disclosed in Japanese Patent Application Laid-Open No. 2000-157034 is
A straw conveying device that conveys threshed straw is configured to be integrally movable with an upper cover of the threshing room.

[0003]

SUMMARY OF THE INVENTION However, Japanese Patent Application Laid-Open
The technique disclosed in Japanese Patent Application Publication No. 36-36 has a problem that the supporting frame becomes large, the movement of the rotation operation of the straw conveying chain becomes large, and the movement becomes obstructive. In addition, JP
No. 000-157034 discloses that, when the cover is opened and the straw transport chain moves up, the jammed straw falls down, thereby lowering the maintenance work efficiency. There is a problem that the weight becomes heavy and the power transmission mechanism becomes complicated.

[0004]

The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described. In other words, in claim 1, a straw transporting device that takes over the straw after threshing by a threshing device from a feed chain and transports the straw to a straw processing device, a handling chamber cover that covers the upper part of the threshing device, and a straw transporting device A straw transport cover covering the upper portion is integrally formed as an upper cover, and a rotation fulcrum of the upper cover is provided on a side opposite to the feed chain, and the straw transport of the straw transport chain constituting the straw transport device is provided. A pivot support frame is protruded from the frame, the pivot support frame is pivotally supported by a straw chain support frame extending from the machine, and a lock mechanism is provided near the pivot portion. .

According to a second aspect of the present invention, the center of the input pulley is arranged near the rotation center extension of the pivot portion of the rotation support frame.

According to a third aspect of the present invention, there is provided a straw transporting device for transporting the straw after threshing by a threshing device from a feed chain to a straw processing device, a handling chamber cover covering an upper part of the threshing device, and a straw transporting device. The straw conveying cover that covers the upper part of the device is integrally configured as an upper cover, and the rotation fulcrum of the upper cover is provided on the opposite side to the feed chain, and the straw conveying chain is connected to the straw conveying chain from the handling cylinder via a belt transmission mechanism. A power transmission is performed, and a tension clutch is provided in the belt transmission mechanism, the tension clutch and the upper cover are interlocked and connected, and the power transmission is cut off when the upper cover is opened.

[0007]

Next, embodiments of the present invention will be described. 1 is an overall side view of the combine, FIG. 2 is an overall plan view thereof, FIG. 3 is a front view thereof, FIG. 4 is a side view of the straw discharging device, FIG. 5 is a plan view thereof, and FIG. FIG. 7 and FIG. 7 are enlarged side views, and FIG. 8 is a view showing a state in which the cover is closed.

First, the overall structure of a combine according to the present invention will be described with reference to FIGS. The combine has a structure in which crawler-type traveling devices 18L and 18R are supported on the left and right sides of a track frame 27, 19 is an airframe mounted on the track frame 27, 20 is a feed cylinder 23 or the like which is stretched to the left side to handle the body. A threshing device 21 having a built-in processing cylinder, a harvesting device 22 having a cutting blade 24 and a grain culm transport mechanism and the like, and a hydraulic cylinder 25 for raising and lowering the cutting device 22 via a cutting frame 26.

Further, reference numeral 17 denotes a straw processing device including a straw transporting device 16 and a straw cutting device, and 29 denotes a grain tank for carrying grains from the threshing device 20 through a graining cylinder 30;
Reference numeral 1 denotes a discharge auger for carrying out the grains of the grain tank 29 outside the machine, and reference numeral 34 denotes a cabin in which a round steering handle 32 and a driver's seat 33 are arranged.

An engine 35 and an engine 3 are provided below the cabin 34 and in front of the body frame 19.
(5) Radiator 37 for cooling and transmission case 36
The crawler-type traveling devices 18L and 18R are driven and turned by the power from the engine 35, and the culm is continuously harvested from the front of the combine to perform threshing. are doing.

Next, the configuration of the straw conveying device 16 will be described. As shown in FIG. 1, in the transport of the grain culm, the straw discharging device 16 is provided downstream of the feed chain 23.
The waste straw after threshing by the handling cylinder 21 is pinched by the feed chain 23 and transported rearward, and the straw is transferred to the waste transporting device 16 from the rear of the feed chain 23, and the waste is transferred to the rear end of the machine. Waste treatment equipment 1 to be placed in
7 and then cut or tied or released to the field as it is. As shown in FIGS. 4 and 5, the straw conveying device 16 includes a straw guide 9 and a straw pinching guide 1.
0, a straw transport chain 11 provided above the straw trapping guide 10, a straw transport frame 12, and the like. The straw guide 9 is arranged substantially in parallel with the straw-trapping guide 10 to support the tip side of the straw, and between the straw-trapping guide 10 and the straw-conveying chain 11, the stem side of the straw is connected. The straw is conveyed to the straw processing device 17 by being driven by the straw conveying chain 11.

The straw guide 9 and the straw pinching guide 10
Are arranged so as to be substantially horizontal in a side view, and together with the straw transport chain 11 in a plan view, the guiding direction of the straw is set to be an oblique direction (about 45 degrees in a plan view). Is transported to the straw processing device 17.

A fixing frame 55 is fixedly provided on the starting end side of the straw transporting frame 12. The fixing frame 55 is formed in a “H” shape in plan view and extends to the straw chain supporting frame 54 side. Has been established. A fixing stay 57 is fixed to the other end of the fixing frame 55 so that the fixing stay 57 can be fixed to the straw chain support frame 54. Further, a fixing plate 59 is fixed to the tip of the fixing frame 55, and the drive transmission gear box 15 is fixed to the fixing plate 59 and the straw conveying frame 12 by bolts or the like. A driving sprocket 13 and a driven sprocket 14 are rotatably supported at both ends of the straw conveying frame 12, and a straw conveying chain 11 is wound between the driving sprocket 13 and the driven sprocket 14. Reference numeral 13 is fixed to a drive shaft 41 protruding from the drive transmission gear box 15.

The other end of the drive shaft 41 is rotatably supported by a drive transmission gear box 15 via a bearing. In the drive transmission gear box 15, a bevel gear 42a is fixed on the drive shaft 41. The bevel gear 42a is connected to the input shaft 4
The input shaft 43 is engaged with a bevel gear 42 b fixed to one end of the drive shaft 3, and the input shaft 43 protrudes rearward from the drive transmission gear box 15 to fix an input pulley 50. Power is transmitted from the input pulley 50 via a belt transmission mechanism to a driving pulley 52 fixed to a handling cylinder shaft via a tension pulley 51 and a belt handling cylinder 21. This belt transmission mechanism is constituted by a belt tension clutch, and the power transmitted from the handling cylinder 21 is transmitted from the driving pulley 52 to the input pulley 50 via the belt 53, and a tension pulley 51 The tension pulley 51 is connected to the upper cover 60 via a connection mechanism described later, and a tension clutch is interlocked with opening and closing of the upper cover 60. Then, the drive transmission gear box 15 is
It is configured to be transmitted to the drive sprocket 13 via the inner bevel gears 42a and 42b to drive the straw conveying chain 11.

A rotation support frame 12a having a U-shape in a plan view is fixedly mounted substantially at the center of the straw conveying frame 12, and the rotation support frame 12a is provided to project obliquely forward. The distal end of the dynamic support frame 12a is pivotally supported by the fixing members 2.2 fixed to the straw chain support frame 54 via the rotation shafts 1a 1a, and is fixed to the straw chain support frame 54 fixed to the body side. Waste straw transport chain 1
1 is rotatable upward. A lock mechanism 7 is provided between the fixed member 2 and the rotation support frame 12a so that the straw transport chain 11 can be locked at the transport position. That is, the straw chain support frame 54 is formed in a substantially “H” shape, one end (front end) is fixed to a threshing machine frame (not shown), and the other end is provided substantially parallel to the straw transport frame 12. ing. Then, a fixing stay 57 projecting from a fixing frame 55 on the base side (front side) of the straw chain support frame 54 can be fixed by a knob bolt 56, and the straw conveying chain 11 is further moved at the transport position. It can be fixed securely.

The lock mechanism 7 is, as shown in FIGS.
The front part of the rotation support frames 12a
1a, the upper surface of the front end is in contact with the lower surface of the straw chain support frame 54 to regulate the downward rotation of the straw transport chain 11. As shown in FIG. 5, the rotation shafts 1a are arranged on the axis O1 of the rotation shafts 1a so as to substantially coincide with the rotation center of the input pulley 50.
On the other hand, a rotating member 1.1 is fixedly mounted on a side surface of the fixed member 2, and a rotating shaft 1a.
a is protruded and inserted into a pivot hole of the rotation support frames 12a for pivotal support. Also, the fixing member 2
An interlocking rod 3 is rotatably mounted laterally on the rear side of 2, and the engaging hooks 4 project downward from the interlock punch 3, and a handle 5 projects upward. Then, the engagement hook 4.
Engaging recesses 4a are formed at the distal end of 4 so as to be able to engage with engaging pins 12b projecting from the side surfaces of the rotation support frames 12a. And
A spring 6 is externally fitted on the interlocking rod 3 to urge the engagement hooks 4 to rotate in the engagement (lock) direction.

The rotation and fixing operation of the straw transport chain 11 to the transport position and the release position in such a configuration will be described. First, the knob bolt 56 fixing the fixed frame 55 fixed to the straw transport chain 11 and the straw chain support frame 54 is removed. Next, when the handle 5 is rotated in the release direction about the interlocking rod 3, the engaging recesses 4a of the engaging hooks 4 fixed to the interlocking rod 3 are disengaged from the engaging pins 12b. Exits and the lock is released. That is, the lock between the straw transport chain 11 and the straw chain support frame 54 is released, and the straw transport chain 11 can be turned upward. When the straw transport chain 11 is rotated upward, a space is formed between the straw transport chain 11 and the straw pinching guide 10, so that maintenance such as removal of a straw clog can be easily performed. Can be.

As shown in FIG. 5, an axis O of the rotation shaft 1a, which serves as an opening rotation fulcrum of the straw transport chain 11, is shown.
Since the center of the input pulley shaft (the input shaft 43 of the input pulley shaft 50) is configured to be substantially coincident with the center of the extension of 1,
The input pulley 50 hardly tilts even if the straw conveying chain 11 is rotated. That is, the straw transport chain 11
Is rotated to the open side, the belt 53 wound around the input pulley 50 is only slightly loosened.
1 can be opened and rotated.

Next, in order to fix the straw transport chain 11 at the transport position, the straw transport chain 11 is rotated downward while the handle 5 is rotated in the release direction, and the engagement recess 4a is rotated.
4a is engaged with the engagement pins 12b, 12b, and the rotation support frames 12a, 12a and the straw chain support frame 5
4 is fixed. Since the engaging hooks 4 are urged in the locking direction by the spring 6, the locked position is maintained, and further, by fixing the straw chain support frame 54 and the fixing frame 55 with the knob bolt 56,
Waste straw transport chain 11 and waste chain support frame 54
And are fixed.

As shown in FIG. 8, an upper cover 60 covers the upper part of the straw conveying device 16 and the handling room. The upper cover 60 is integrally formed with a handling chamber cover 60a that covers the handling cylinder and a straw transporting cover 60b that covers the upper part of the straw transporting device 16, and a rotation fulcrum shaft is provided on the opposite side of the upper cover 60 from the feed chain 23. When the upper cover 60 is rotated upward, maintenance of the handling drum 21 and the straw conveying device 16 can be performed from the feed chain 23 side. Further, a tension arm 63 is pivotally supported on a drive shaft 52a of the drive pulley 52 of the belt transmission mechanism. Is connected to one end of the release plate 61 via a spring 64 and a connecting rod 62. The central portion of the release plate 61 is pivotally supported on the machine frame side by a pivot shaft 65, and the release plate 6
1 has an abutment 6 projecting downward from the upper cover 60.
0c. In this way, the upper cover 60 and the tension clutch of the belt transmission mechanism are interlocked.

That is, by having such a configuration,
When rotating downward to close the upper cover 60,
The release plate 61 abuts against the contact body 60c of the cover 60 and is rotated downward, and the connecting rod 62 connected to the release plate 61,
The tension arm 63 is rotated via the spring 64, and the tension pulley 51 tensions the belt 53. That is, the clutch is turned on. Therefore, power is transmitted from the driving pulley 52 to the straw transport chain 11 via the belt transmission mechanism, the input pulley 50, and the gear box 15, and the straw transport chain 11 can be driven.

When the upper cover 60 is opened, the release plate 61 'separates from the contact member 60c as shown in FIG.
2 and the weight of the spring 64, the tension arm 6 is lowered.
3 is also rotated, the tension pulley 51 is rotated upward and separated from the belt 53, power is not transmitted, and the straw transport chain 11 stops. That is, the tension clutch is disconnected. As described above, the upper cover 60
The belt tension clutch is turned ON
In this case, when the maintenance is performed by opening the upper cover 60, the power is not transmitted to the straw transport chain 11, and the chain is stopped, so that the safety is ensured and the maintenance performance is improved. Can be planned.

[0023]

The present invention is configured as described above.
The following effects are obtained.

That is, in a straw transporting device for receiving the straw after threshing by a threshing device from a feed chain and transporting the straw to a straw processing device, a handling chamber cover for covering the upper part of the threshing device, A straw transport cover that covers the upper part of the straw transport device is integrally configured as an upper cover, and a rotation fulcrum of the upper cover is provided on the opposite side to the feed chain, and a straw transport chain configuring the straw transport device is provided. A pivot support frame is protruded from the straw transport frame, and the pivot support frame is pivotally supported on a straw chain support frame extending from the machine, and a lock mechanism is provided near the pivot portion. As a result, the handling room cover and the straw transport cover are integrated to reduce manufacturing costs, and the front side can be largely opened for maintenance, etc., making work easier. . In addition, when the straw is transported, the lock mechanism is locked, and the straw transport chain is securely fixed, so that the straw can be transported stably. In addition, when the straw is clogged or during maintenance, the lock mechanism is released from the locked state, whereby the straw transport chain can be rotated upward. Since a space is formed between the banding guide and
Maintenance such as removal of straw clogging can be easily performed.

According to a second aspect of the present invention, since the center of the input pulley is arranged near the extension of the rotation center of the pivot portion of the rotation support frame, the rotation of the straw conveying chain in the release direction can be prevented. The movement of the input pulley is reduced, and the straw conveying chain can be opened and rotated without removing the belt wound around the input pulley, thereby improving maintenance.

According to a third aspect of the present invention, there is provided a straw conveying device for transferring the straw after threshing by a threshing device from a feed chain to a straw processing device, wherein a handling chamber cover covering an upper part of the threshing device, A straw conveying cover that covers the upper part of the conveying device is integrally formed as an upper cover, and a rotation fulcrum of the upper cover is provided on a side opposite to the feed chain, and the straw conveying chain is moved from the handling cylinder via a belt transmission mechanism. The belt transmission mechanism is provided with a tension clutch, the tension clutch and the upper cover are interlocked and connected, and the power transmission is cut off when the upper cover is opened. When performing, etc., when the upper cover is opened, the straw transport chain automatically stops and power transmission is not performed, and while ensuring safety, It is possible to improve the maintainability.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is an overall plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a side view of the straw conveying device.

FIG. 5 is a plan view of the same.

FIG. 6 is an enlarged plan view of a lock mechanism.

FIG. 7 is an enlarged side view of the same.

FIG. 8 is a view showing a state in which a cover is closed.

[Explanation of symbols]

 Reference Signs List 7 lock machine groove 11 straw transport chain 12 straw transport frame 12a rotation support frame 16 straw transport device 17 straw processing device 20 threshing device 23 feed chain 54 straw chain support frame 60 top cover

Claims (3)

[Claims] 1. A straw conveying device for transferring waste straw after threshing by a threshing device from a feed chain and transporting the straw to a straw processing device, wherein a handling chamber cover covering an upper portion of the threshing device and a covering portion of an upper portion of the straw transport device. The straw transport cover is integrally formed as an upper cover, and the rotation fulcrum of the upper cover is provided on the opposite side of the feed chain, and the straw transport cover is rotated from the straw transport frame of the straw transport chain constituting the straw transport device. A moving support frame projecting therefrom, and a pivoting mechanism rotatably supporting the rotating support frame to a straw chain supporting frame extending from the machine, and a lock mechanism provided near the pivot support portion. Straw conveyor. 2. The straw conveying device according to claim 1, wherein a center of the input pulley is disposed near an extension of a pivot center of the pivot portion of the pivot support frame. 3. A straw transporting device that takes over the straw after threshing by a threshing device from a feed chain and transports the straw to a straw processing device, and covers a handling chamber cover that covers an upper portion of the threshing device and a upper portion of the straw transporting device. The waste transport cover is integrally formed as an upper cover, and the rotation fulcrum of the upper cover is provided on the opposite side to the feed chain, and power is transmitted from the handling drum to the waste transport chain via a belt transmission mechanism,
A straw conveying device, wherein a tension clutch is provided in the belt transmission mechanism, the tension clutch and the upper cover are interlocked, and power transmission is cut off when the upper cover is opened.