JPH0516907Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention has a structure for forming the upper part of the handling chamber to which the handling cylinder is attached, which is located on the opposite side of the handling port and approximately parallel to the axis of the handling cylinder. This invention relates to a threshing device mounted so as to be able to swing up and down around an axis.

[Conventional technology]

The above-mentioned threshing device is designed so that when inspecting or cleaning the handling chamber, the handling chamber can be opened and closed and the handling barrel can be taken in and out by simply swinging the structure for forming the upper part of the handling chamber.

In this type of threshing device, conventionally, the positioning of the structure for forming the upper part of the handling chamber in the direction along the axis of the handling barrel was performed only by the pivot of the fixed side structure that pivotally supported the structure. was.

[Problem that the invention attempts to solve]

In the case of the above-mentioned conventional device, during operation, an operating force is applied to the handling cylinder to move it to the rear side of the handling room or to the front side of the handling room due to the grain culm conveyance by the threshing feed chain and its reaction force, and the upper part of the handling room The pivot joints of the forming structure and the stationary structure are relatively far from the axis of the handling cylinder, and the bending moment acting on the pivot joints is relatively large due to the operating force acting on the handling cylinder. This causes wear and deformation of the members at the pivot joint, which tends to cause the structure for forming the upper part of the handling chamber to wobble or become difficult to swing.

An object of the present invention is to make it possible to easily avoid the occurrence of the above-mentioned syllables.

[Means for solving problems]

The characteristic configuration of the present invention is that, in the above-mentioned threshing device, a structure for forming the upper part of the handling chamber to which the handling barrel is attached is configured, and the structure is in contact with a frame located on the free end side of the structure to remove the grain culm. A stopper portion for suppressing displacement of the structure due to transportation is provided on a frame constituting a fixed side structure that pivotally supports the structure, and its functions and effects are as follows. .

[Effect]

Support of the structure for forming the upper part of the handling chamber against the operation force due to grain culm conveyance and its reaction force is performed not only at the above-mentioned pivot part of the fixed side structure but also at the stopper part. The support for the upper part of the handling chamber is strongly supported between the frames, and is provided at a location opposite to the pivot point with respect to the axis of the handling trunk, thereby supporting the structure for forming the upper part of the handling chamber. This can be done while minimizing the reaction force exerted on the pivot by the fixed side structure.

[Effect of idea]

By reducing the reaction force acting on the pivot parts of the upper handling chamber forming structure and the fixed side structure, the parts at these points are less likely to wear out or deform, allowing the handling chamber to open and close smoothly over a long period of time. It has become easier to move and is less prone to wobbling.

Furthermore, the structure is simple enough to just add the stopper part, which is advantageous from an economic point of view.

〔Example〕

As shown in FIG. 4, the threshing section is constructed so that the harvested grain culm is supplied to a handling chamber 2 by a threshing feed chain 1 and threshed by a rotating handling drum 3. An endless chain-type waste straw conveying device 4 is provided at the rear of the handling room 2 to convey the threshed waste straw carried out from the chamber 2 to the rear of the machine and discharge it to the outside of the machine. Then, while the threshed material falling and being supplied from the handling room 2 through the receiving net 5 and the dust exhaust port 6 is transferred to the rear of the machine by the swinging sorting device 7, and while the sorting air supplied by the winnower 8 is applied. The sorting section is configured to separate grains and dust, and the dust is sucked by a rotating fan 9 along with the sorting wind and discharged outside the machine, and a screw is configured to discharge the first processed material from the sorting section to the outside of the machine. A conveyor 10 and a screw conveyor 11 for returning the No. 2 processed material from the sorting section to the handling room 2 to be reprocessed are provided at the bottom of the sorting section, thereby forming a threshing device for a combine harvester. be.

As shown in FIGS. 1 to 3, the front wall portion 1
2. Rear wall portion 13, side wall portion 14 and ceiling wall portion 1
5 are provided to form the upper part of the handling chamber 2, and the handling barrel 3 is attached via a rotating support shaft 16, and the threshing feed chain 1 is also configured to clamp and transport threshing. The movable side structure 25 to which the guide rail 17 that enables the handling, the straw cutting blade 19 on the side of the handling port 18, and the straw cutting blade 20 on the opposite side to the handling port 18 are attached, is attached to the handling cylinder 3. The handle 21 moves up and down around an axis P ₂ that is located on the opposite side of the handling port 18 and is approximately parallel to the handling barrel axis P ₁ .
The fixed side structure 24 can be rotated by
The handling cylinder 3 is mounted in the handling chamber 2 so that the handling cylinder 3 can be fixed in the raised position where it has come out of the handling chamber 2 by tension support by the telescopic support rod 22. It is constructed so that it can be fixed in the lowered position by a hook 23. In other words,
The handling chamber 2 can be opened and closed and the handling cylinder 3 can be taken in and out easily by swinging the movable structure 25 when cleaning the inside of the handling chamber.

As shown in FIG. 1, a curved frame 27 is located around the threshing straw conveying port 26 and supports the downstream side of the conveyance of the straw straw conveying device 4, and this curved frame 27 and the front wall portion 28 are connected. The connecting frame 29 in the longitudinal direction of the machine body and both ends of the curved frame 27 are connected, the curved frame 27 and the connecting frame 29 are connected, and the upper side of the conveying straw conveying device 4 is supported. A frame of the fixed side structure 24 is composed of a bending frame 30, a connecting frame 32 connecting the connecting frame 29 and the rear wall portion 31, and the like.

The movable side structure 25 is attached to the bending frame 30.
A stopper portion 35 is provided. This stopper portion 35 connects the front wall portion 12 and the rear wall portion 13 to the free end side of the movable side structure 25.
In addition, the top wall portion 15 is pivotably supported so as to be able to swing open and close, and the rear end portion of the linear frame 33, which is substantially parallel to the handling trunk axis _P1 , is formed of bent sheet metal. It is arranged so as to be in contact with the abutment portion 33a, and is configured to suppress displacement of the movable side structure 25 toward the rear side of the handling room by this abutment. In other words, threshing feed chain 1
acts on the handling cylinder 3 through the grain culm to pull it toward the rear side of the handling room due to the grain culm conveying force, but the fixed side structure 24 is located at the handling cylinder axis P in a plan view. The movable side structure ₂₅ is constructed by connecting the pivot portion located on both sides of the movable side structure 25 and the stopper portion 35.
The structure is such that it is received and supported so that it does not shift from a predetermined position as much as possible regardless of the pulling action by the threshing feed chain 1.

[Another example]

FIG. 5 shows another embodiment, in which the curved frame 2
7. Connect both ends of the connecting frame 29 and the curved array 27, connect the curved frame 27 and the rear wall portion 31, and further support the upper side of the conveyance of the straw removal conveyance device 4. A frame of the fixed side structure 24 is configured by a bent frame 34 and the like. A bent sheet metal is attached to the bent frame 34 to provide a stopper portion 35 for the frame 33.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing device according to the present invention,
Fig. 1 is a perspective view of the frame structure, Fig. 2 is a front view of the upper part of the threshing device, Fig. 3 is a partially cutaway front view of the threshing section, and Fig. 4 is a partially cutaway side view of the entire threshing device. FIG. 5 is a perspective view of another implementation frame structure. 3... Handling cylinder, 24... Fixed side structure, 25...
Structure, 30, 33, 34...Frame, 35...
...Stopper part, P ₁ ... Handling cylinder axis, P ₂ ... Axis center.

Claims (1)

[Claims for Utility Model Registration] 1. Structure 2 for forming the upper part of the handling chamber to which the handling cylinder 3 is attached
5 is located on the opposite side of the handling port 18 and is attached to be able to swing up and down around an axis P ₂ that is substantially parallel to the handling barrel axis P ₁ , and constitutes the structure 25. At the same time, a stopper part 35 that comes into contact with the frame 33 located on the free end side of the structure 25 to suppress displacement of the structure 25 due to grain culm transportation is installed on the fixed side that pivotally supports the structure 25. A threshing device provided in the frame 30 or 34 of the structure 24. 2. The threshing device according to claim 1, wherein the stopper part 35 is a stopper part that suppresses displacement of the structure 25 toward the rear side of the handling chamber.