JPH05308843A - Threshing and culm discharging device for combine - Google Patents

Abstract

PURPOSE:To facilitate maintenance such as clogging of discharged culm, etc., by opening a threshing cover to loosen tension pressure of a transmission belt for driving a culm discharging device. CONSTITUTION:A discharged culm chamber at the rear of a threshing chamber is equipped openably and rotatably upward with a culm discharging device for receiving and transporting threshed discharged culm sent by a feed chain. The culm discharging device is interlocked by a transmission belt 6 from a threshing cylinder shaft 5 of the discharged culm chamber and the transmission belt 6 is unfastened and fastened by opening and closing a threshing cover 7 for opening and closing the discharged culm chamber to give a threshing and culm discharging device for combine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing and culling device for combine harvesters, in which the threshing cover of a threshing chamber is opened to loosen the tension of a transmission belt for driving the culm device for discharging threshed culm. Is characterized by.

[0002]

2. Description of the Related Art Generally, a culm device for transporting threshed culm is provided on the rear side of a threshing chamber. If the culm is clogged, it is necessary to cut off the transmission of the culm device and perform the work to remove the jammed culm. This invention, the belt transmission of the culm device, by opening the threshing chamber cover,
It is to facilitate maintenance of the culm by allowing it to be cut off or by relaxing the tension in the belt transmission.

[0003]

According to the present invention, an culm device 4 for transferring and transferring the threshed culm carried by a feed chain 3 to a culm chamber 2 on the rear side of the threshing chamber 1 is provided above. To loosen and stretch by opening and closing the threshing cover 7 that opens and closes the threshing chamber 1 by interlocking with the handling body shaft 5 of the threshing chamber 1 by the transmission belt 6. And a threshing and culling device for combine harvesters.

[0004]

[Operation and effect of the invention] The threshing operation is as follows. The threshed culm that has been threshed by the feed chain 3 is threshed while being transferred to the threshing chamber 1 and discharged to the culm chamber 2,
It is sandwiched by the culm device 4 and is transported. The culm removal device 4 is transmitted from the rear end of the handling barrel shaft 5 of the threshing chamber 1 via the transmission belt 6, and when the threshing cover 7 of the threshing chamber 1 is opened upward, this transmission is performed. The tension of the belt 6 is loosened, and the transmission of the culm device 4 is interrupted or becomes difficult to transmit.

Therefore, when removing the jammed culm in the culm device, such as when the culm device 4 is clogged, the resistance received from the handle barrel 5 is reduced by loosening the transmission belt 6. The manual operation of the culm device 4 can be performed lightly, and by closing the threshing chamber cover 7, the tension of the power transmission belt 6 can be made sufficient to transmit the culm device 4. Therefore, maintenance of the culm device 4 can be facilitated.

[0006]

1 to 6, in a combine threshing device, a threshing chamber 1 in which a handling barrel 8 pivotally supported by a handling barrel shaft 5 is installed is provided with a threshing net 9 in a lower half peripheral portion thereof, and a threshing net 9 is provided on an upper side thereof. It has a threshing cover 7 that can be opened and closed by turning upward with the side as a pin 10. On the front side of the threshing chamber 8, a feed chain 3 and a sandwiching rod 35 are provided along the front-rear direction, and the grain culm supplied from the grain culm supply port on the front side is transferred backward through the threshing chamber 8. While threshing, the rear culvert 1
1 is transferred to the rear culvert room 2. The feed chain 3 is attached to the threshing frame below the grain culm transfer port, and the sandwiching rod 35 is attached to the upper threshing chamber cover 7. Reference numeral 12 is a rear frame that forms a culm outlet 11 at the rear of the threshing chamber 1, and supports the handling barrel shaft 5 between the rear frame and the front frame that forms the front grain culm supply port.

A handle 36 for fixing the closed posture of the threshing cover 7 and a hook 37 are provided on the front side of the threshing chamber cover 7 so as to face the supply port portion and the culm 11 portion, respectively. The hook 37 that rotates by operation is
The closure of the threshing cover 7 can be fixed by engaging with the pins 38 provided at the front end portions of the front frame and the rear frame 12. The threshing chamber cover 7 is configured so as to cover the upper half of the threshing chamber 1 from the upper side of the threshing chamber 1, and the rear side of the threshing chamber cover 7 has
The drainage chamber cover 13 that opens and closes the latter half of the above can be opened and rotated upward around the hinge 14 on the back side.

[0008] The culm device 4 comprises a culm chain 15 for sandwiching the root side of the culm and a culm belt 16 for guiding the tip side, and is obliquely rearward from the root side to the tip side. An culvert rail 17 is provided on the lower side so as to convey the culms and is guided to convey. In the culm chamber 2, a culm frame 18 is provided along the lower surfaces of the threshing chamber cover 7, the culm chamber cover 13 and the like, and the culm chamber cover 13 is integrally formed with the culm frame 18. The hinge 14 is opened and closed around the hinge 14. Reference numeral 19 denotes a frame provided on the back side, which is configured integrally with the chassis, and the culm frame 18 is pivotally supported on the frame 19.

The front end of the culm frame 18 is close to the rear end of the feed chain 3 and has a gear case 20.
A pulley 22 that spans the handle barrel shaft 5 between the rear end pulley 21 and a sprocket 23 that spans the start end portion of the exhaust culvert 15 is mounted. Also, this drainage frame 18
Between the front end of the and the partition plate 24 protruding from the threshing cover 7 toward the rear frame 12 side, a stay 39 integral with the culm frame 18 is provided by a fixing pin 25 integral with the threshing cover 7. By pressing down, the threshing cover 7 is closed to fix the closed posture of the culm cover 13. 40
Is integrated with the culm frame 18, and the stay 39,
It is a bracket to which the gear case 20 and the like are attached. Two
Reference numeral 8 is a processing chamber in which a processing cylinder is installed.

The transmission belt 6 is a pulley 22 which is integrally rotated with the exhaust frame 18 on the side of the exhaust cover 13 so as to rotate up and down.
And the pulley 21 at the rear end of the handling barrel shaft 5 of the rear frame 12 and the tension pulley 27 pivotally supported by the bracket 26 on the back side of the threshing cover 7. The tension pulley 27 relaxes the tension of the transmission belt 6 when the threshing cover 7 is opened and rotated upward, and tensions the transmission belt 6 when the upper surface of the threshing chamber 1 is closed to maintain the transmission state. To do. Reference numeral 29 is a tension pulley pivotally supported by the rear frame 12, and maintains a transmission state by the tension of the spring 30.

The tension pulley 27 cuts off the transmission rotation of the transmission belt 6 in the opened posture of the threshing chamber cover 7 or loosens it to a belt tension that cannot be transmitted. 7 to 9, a point different from the above example is that the tension of the transmission belt 6 that drives the culm device 4 causes the culm cover 13 in the open / closed state and the culm frame 18 integrated therewith to float. It is configured to maintain.

The transmission belt 6 is a pulley 21 of the handle barrel shaft 5.
A fixed-position pulley 31 which is rotatably supported by a rear frame 12 located above the handling barrel shaft 5, a tension pulley 33 which is pulled by a spring 32 on the inner side of the rear frame 12, and a front pulley on the front side. It is hung by the pulley 22 in the front part of the culm frame 18 and is pulled by the pulley 2 of the handling barrel shaft 5.
The pulley 22 is driven by driving No. 1 and the exhaust culvert 15 is transmitted. The fixed-position pulley 31 is positioned above the belt tension position where the front pulley 22 and the rear pulley 33 of the transmission belt 6 are directly connected, and the tension pressure of the tension pulley 32 causes the drainage frame. It is tensioned so that the 18th part always floats.

Accordingly, when the threshing cover 7 is rotated upward to release the pressing force for pressing the culm cover 13 and the culm frame 18 from the upper side, the transmission belt 6 is released.
It will be levitated by the tension force. For this reason, the tension of the transmission belt 6 is also relaxed. 34 is a culm room 2
With the support frame provided at the base of the plant, the front end is connected to the front end of the rear frame 12, and the rear end is curved downward to form the drainage chamber 2
Threshing cover 7 that opens and closes by connecting to the bottom frame of
It receives the end edge of the stock such as the culm cover 13.

[Brief description of drawings]

FIG. 1 is a rear view of a threshing chamber of a threshing device.

FIG. 2 is a rear view showing the operation of the threshing cover and the culm cover.

FIG. 3 is an enlarged rear view of a part of the threshing cover portion.

FIG. 4 is a side view of the threshing device culm.

FIG. 5 is a side view of a threshing device culvert.

FIG. 6 is a plan view thereof.

FIG. 7 is a rear view of the threshing cover portion showing another embodiment.

FIG. 8 is a rear view showing the operation.

FIG. 9 is a plan view thereof.

[Explanation of symbols]

 1 Threshing Room 2 Cutter Room 3 Feed Chain 4 Cutter Device 5 Handling Cylinder Shaft 6 Transmission Belt 7 Threshing Cover

Claims (1)

[Claims] 1. An culm device 4 for inheriting and transferring the threshed culms carried by a feed chain 3 is provided in the culm chamber 2 on the rear side of the threshing chamber 1 so as to be opened and rotatable upward. , Interlocking with the transmission belt 6 from the handling barrel shaft 5 of the threshing chamber 1,
A combine threshing and culling device, wherein the transmission belt 6 is loosened and stretched by opening and closing a threshing cover 7 that opens and closes on the threshing chamber 1.