JPH0471484B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a swing-type sorting device for sorting threshed grains in a threshing machine while swinging. The present invention provides a device for adjusting the inclination angle of each horizontal bar in the horizontal bar type chaff sheave in a swinging sorting device provided with a horizontal bar type chaff sheave for sorting.

[Conventional technology]

Adjusting the inclination angle of each horizontal bar in a horizontal bar type chaff sheave is well known in the art, as described in, for example, Japanese Utility Model Publication No. 30231/1983.

The conventional horizontal bar-type chaff sheave has a plurality of horizontal bars extending approximately perpendicular to the swinging direction of the swinging sorting mechanism at appropriate intervals between the left and right side frames of the swinging sorting mechanism installed at the bottom of the handling chamber. and each of the horizontal beams slides in the longitudinal direction of the pivot pin that fits into the pin hole drilled in the left and right side frames and the long groove pin hole drilled in the both side frames. The angle adjustment rod is supported in an adjustable inclination angle by an angle adjustment pin that can be fitted freely, and the angle adjustment rod is disposed on the outer surface of at least one of the side frames, and each of the horizontal bars is They are connected via an angle adjustment pin that fits into a long groove-shaped pin hole, and the angle adjustment rod moves back and forth,
It was constructed so that the inclination angle of each horizontal bar could be adjusted all at once.

[Problem that the invention seeks to solve]

However, in this conventional system, the pivot pin for each horizontal bar and the pin hole into which it fits are located at the lower end of each horizontal bar, while the angle adjustment pin for each horizontal bar and the pin hole into which it fits are located at the lower end of each horizontal bar. By locating the long groove pin hole above the pivot pin, the inclination angle of each horizontal bar can be adjusted by rotating each horizontal bar around the pivot pin at the bottom thereof. Therefore, when adjusting the inclination angle, the interval between the upper ends of each horizontal bar increases or decreases, and when the inclination angle is decreased, the interval becomes narrower, so that the upper surface of the chaf sheave A situation occurs where the inclination angle of the horizontal rungs cannot be adjusted due to straw debris, etc. being caught between them.Furthermore, when the inclination angle of each rung is made smaller, the distance between them becomes narrower. If the threshing is clogged in the section, making it impossible for the threshing to flow down from between the horizontal bars, or when the next time the inclination angle is increased, the clog occurs as described above, or each A large amount of straw waste, etc., which was being sorted on the top surface of the horizontal rung, flowed down at once without being sorted.

Moreover, since there is a lot of straw waste etc. on the upper surface of each horizontal crosspiece, the pin hole located at the upper part of both pin holes into which the pins supporting each horizontal crosspiece are respectively fitted is As shown in the figure, the structure of the long groove pin hole allows straw waste present on the top surface of each horizontal bar to easily enter the long groove pin hole, and this straw waste blocks the long groove pin hole, making it impossible to adjust the angle. This is because it frequently leads to situations where this happens.

The present invention aims to solve these problems.

[Means to solve the problem]

In order to achieve this object, the present invention provides a structure in which a swing sorting mechanism is provided at the bottom of a handling chamber between the left and right frames.
A plurality of horizontal bars extending substantially perpendicular to the swinging direction in the swinging sorting mechanism are arranged at appropriate intervals, and each horizontal bar is
A pivot pin that fits into a pin hole drilled in the left and right side frames, and an angle adjustment pin that fits into a long groove pin hole drilled in both side frames so as to be slidable in the longitudinal direction of the long groove pin hole. an angle adjustment rod disposed on the outer surface of at least one of the side frames, and each of the horizontal beams;
In the swinging sorting device which is connected via an angle adjustment pin fitted into the long groove-shaped pin hole, a pivot pin for each of the horizontal bars is located at a portion close to the upper end of each horizontal bar, The angle adjustment pin for each horizontal beam is located at a lower portion than the pivot pin.

[Action/effect of the invention]

With this configuration, by moving the angle adjustment rod back and forth in its longitudinal direction, each horizontal beam rotates around a pivot pin that fits into a pin hole in a portion close to its upper surface. Then, since the inclination angle of each horizontal bar can be adjusted to increase or decrease centering on the upper end of each horizontal bar, when adjusting the inclination angle of each horizontal bar, the interval at the upper end of each horizontal bar is
In addition, the long groove-shaped pin hole into which the angle adjustment pin that supports the lower part of each horizontal bar is fitted is located below the top surface of each horizontal bar. By doing so, the risk that straw debris, etc. on the upper surface of each horizontal bar will enter the long groove-shaped pin hole is much less than in the conventional case described above.

Therefore, according to the present invention, when adjusting the inclination angle of each horizontal bar to be small, it is possible to reduce the occurrence of threshing clogging between each horizontal bar, and to increase the inclination angle of each horizontal bar. During adjustment, it is possible to prevent a large amount of straw waste from flowing down from between the horizontal bars at once, so the sorting performance of the horizontal bar-type chaff sheep can be significantly improved.

In addition, when adjusting the inclination angle of each horizontal bar to be small, in addition to ensuring that straw waste, etc. on the top surface of each horizontal bar is not caught between each horizontal bar, straw on the top surface of each horizontal bar is Since it is possible to reduce the possibility of debris entering the long groove-shaped pin holes into which the angle adjustment pins for supporting the lower part of each horizontal bar can be adjusted freely, it becomes impossible to adjust the inclination angle of each horizontal bar. It is possible to reliably reduce the occurrence of such situations.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 indicates a handling chamber containing a handling cylinder 2, and a crimp net 4 is stretched under the lower part of the chamber except for the dust exhaust port 3. .

Reference numeral 5 indicates a swinging sorting mechanism supported by a link 6, and the swinging sorting mechanism 5 has left and right side plates 7,
7, a feed pan 8 provided between the front parts and a grain board 9 provided between the rear parts thereof, and a part from the middle part of the crimp net 4 to below the dust exhaust port 3, which is approximately perpendicular to the swinging direction. At the rear of the chaf sheave 10, there is provided a chaf sheave 10, which is made up of a large number of horizontal bars 11 made of narrow thin metal plates arranged in parallel at appropriate intervals, extending in the direction of
A sieve line 1 whose tip extends in the direction of the dust exhaust fan 12
3, and a sorting net 14 is provided below the chaff sheep 10.

Further, below the swing sorting mechanism 5, there is a winch fan that blows air toward the sorting net 14, a first screw conveyor 17 with a grain gutter 16, and a second screw conveyor 19 with a grain gutter 18. are arranged respectively.

The inclination angle of each horizontal beam 11 in the chaff sheep 10 can be freely adjusted between side frames 21, 21 which are removably attached to the inner surfaces of the left and right side plates 7, 7 in the swing sorting mechanism 5 with bolts 20, etc. will be installed on the

That is, as shown in FIGS. 2 to 5, pin holes 22 are formed in the upper portions of the side frames 21, that is, in the portions close to the upper ends of the respective horizontal bars 11, at the mounting intervals of the horizontal bars 11. In the lower part thereof, long groove-shaped pin holes 23 are similarly bored at the mounting intervals of the respective horizontal bars 11.

Each of the horizontal bars 11 is provided with a downwardly bent lip 24 at its lower end to have an L-shaped cross section (note that this lip 24 may be provided upward as shown in FIG. 6), and , At both longitudinal ends of each horizontal bar 11, horizontal bar mounting pieces 25 made of synthetic resin are attached by fitting into grooves 25 provided in the horizontal bar mounting pieces 25, and the upper ends of the horizontal bar mounting pieces 25 are attached. A pivot pin 27 integrally formed on the outer surface is inserted into each pin hole 22 in the both side frames 21.

Further, a pin hole 28 is bored at the lower end of the horizontal bar mounting piece 25, and a lower pin 28 is inserted into the pin hole 28, and serves as an angle adjustment pin and a support for the lower part of each horizontal bar 11.
9 is inserted so that the head of the lower pin 29 prevents the horizontal bar 11 from coming out of the groove 26, while the lower pin 29 is inserted into the long groove pin hole 23 in the both side frames 21 with its longitudinal length. It is slidably inserted in the direction and protrudes to the outside of both side frames 21.

Furthermore, angle adjustment rods 30 made of synthetic resin are provided on the outer surfaces of the both side frames 21 and extend in the longitudinal direction thereof.
is arranged so as to be slidable in its longitudinal direction, and each of the lower pins 29 is inserted into and engaged with a pin hole 31 bored in this angle adjustment rod 30 at an interval of each of the horizontal bars 11. The structure is such that each of the horizontal bars 11 tilts and rotates at the same time as the angle adjustment rod 30 moves back and forth in the longitudinal direction.

Note that the angle adjustment rod 30 is connected to each lower pin 29.
Bolt 3 screwed into any one of the lower pins
2, the structure is such that it can be fixed non-slidably at any angle adjustment position.

In this configuration, the grains among the threshed grains leaking from the crimp net 4 in the handling room 1 fall into the feed pan 8 and the chaff sieve 10, and the threshed grains that fell into the feed pan 8 are sent to the chaf sheave 10 by shaking, and As the grains are being sent backwards together with the threshed grains that have fallen into the chaff sheave 10, the sorting net 1 is passed between each horizontal bar 11 in the chaff sheave
4, the grains are sorted on the sorting net 14 so that the dust is sucked into the dust exhaust fan 12 by the windmill, and then passed through the grain gutter 16 to the first screw conveyor 17. taken outside.

On the other hand, the waste dust such as straw that could not leak through the crimp net 4 falls from the dust exhaust port 3 in the handling room 1 onto the chaff sheave 10 below it, and is sequentially caused by its swinging and the wind from the windmill. On the way to being sent to the sieve line 13, the heavy ones with paddy on them reach the second screw conveyor 19 and are returned to the handling room 1 on a return floor (not shown), while the lighter and larger ones are The dust is sucked into the dust exhaust fan 12 from the tip of the sieve wire 13, or is directly discharged outside the machine.

Then, by loosening the bolt 32 for fixing the position of the angle adjustment rod 30 in the chaff sheave 10 and moving the angle adjustment rod 30 back and forth in its longitudinal direction, each horizontal bar 11 can be moved with the pivot pin 27 at its upper part. Since they rotate all at once around the center, each horizontal bar 1
1 can be freely adjusted. When adjusting the inclination angle, each horizontal bar 11 rotates around the pivot pin 27 at its upper part, so that the angle of inclination at the upper surface of the chaf sheave 10 The spacing between the horizontal bars 11 can be maintained substantially constant.

In addition, the inclination angle of each horizontal frame 11 is
When adjusting the angle using the angle adjusting rod 30 disposed on the outer surface of the side frame 21, the pin hole 22 located at the upper part of the pin holes 22 and pin holes 23 bored in the side frame 21 in two stages, upper and lower, is By forming each horizontal bar 11 into a long groove-shaped pin hole, a pin hole 23 located at the bottom of each horizontal bar 11 is formed.
It is conceivable to configure the structure so that it rotates around a pin that is fitted into the chap sheave, but there is a lot of straw waste on the upper surface side of each horizontal bar 11 in the chap sheave, and this straw waste is located at the upper part. Since it enters the long groove-shaped pin hole and blocks it, the frequency of inability to adjust the inclination angle increases.

In contrast, in the present invention, as described above, the side frame 2
1, the pin hole 23 located at the bottom is formed into a long groove-shaped pin hole, and each horizontal bar 11 is configured to rotate around the pivot pin 27 that fits into the pin hole 22 located at the top. The probability that straw debris on the upper surface of each horizontal bar 11 enters the long groove pin hole 23 is significantly reduced, and it is possible to reduce the possibility that the long groove pin hole 23 is clogged and the inclination angle cannot be adjusted. be.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view of the threshing machine, Fig. 2 is a perspective view of the chaff sheave, Fig. 3 is an enlarged sectional view of Fig. 2, and Fig. 4 is an enlarged sectional view of Fig. 2.
FIGS. 5 and 6 are enlarged cross-sectional views taken from the side in FIG. 2. FIG. 1... Handling room, 2... Handling barrel, 3... Dust exhaust port, 4...
... Crimp net, 5 ... Rocking sorting mechanism, 10 ... Chaff sheave, 11 ... Horizontal bar, 21 ... Side frame, 22
... Pin hole, 23 ... Long groove pin hole, 27 ... Pivotal support pin, 29 ... Lower pin that also serves as angle adjustment pin, 30 ... Angle adjustment rod.

Claims (1)

[Claims] 1. A plurality of horizontal bars extending approximately perpendicular to the swinging direction of the swinging sorting mechanism are arranged at appropriate intervals between the left and right side frames of the swinging sorting mechanism provided at the bottom of the handling room, and each of the horizontal bars is , a pivot pin that fits into pin holes drilled in the left and right frames, and an angle adjustment pin that fits into the long groove pin holes drilled in the left and right frames so as to be slidable in the longitudinal direction of the long groove pin holes. Thus, while the angle adjustment rod is supported so as to be adjustable in inclination angle, the angle adjustment rod disposed on the outer surface of at least one of the side frames and each of the horizontal bars are adjusted in angle by fitting into the long groove pin hole. In the oscillating sorting device, the pivot pin for each of the horizontal bars is located at a portion close to the upper end of each horizontal bar, and the angle adjustment pin for each horizontal bar is located at a position close to the upper end of each horizontal bar. . A swing sorting device for a threshing machine, characterized in that it is located at a lower portion than the pivot pin.