JPH0414988Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is mainly based on a swing sorting plate with a grain pan installed on the upstream side, arranged below the handling chamber, and a winch and a collection section below it. This invention relates to a threshing sorting device mounted on a combine harvester.

[Conventional technology]

In this type of device, the threshed grains are dropped in the handling chamber onto a swinging sorting plate, and the threshed grains are sorted through a sieve on the swinging sorting plate, thereby separating the threshed grains into grains, etc. The waste is separated into recovered materials (first and second materials) and materials to be sorted such as waste straw.

Incidentally, a grain pan is provided on the upstream side of the swing sorting plate, and a grain sieve is arranged adjacent to the downstream end of the grain pan.
This grain sieve sieves the threshed grains that fall onto the swinging sorting plate after being threshed in the handling room, and allows only the grains to fall to the first collecting section. The mesh is formed to have a certain size, and for example, when the grain is a rice grain, it is formed to have a size suitable for allowing the rice grain to pass through and fall.

[Problem that the invention attempts to solve]

A general combine harvester is designed to be able to thresh multiple types of crops (e.g. rice, wheat, etc.), but when using a combine harvester equipped with a threshing sorting device like the one mentioned above, it is possible to thresh different crops. In this case, it was necessary to replace the grain sieve with a grain sieve having a mesh size suitable for allowing the grains to be collected to fall through the grain sieve. Therefore, each time a different crop is threshed,
There was a problem in that it was necessary to replace the grain sieves and it was necessary to prepare multiple types of grain sieves.

An object of the present invention is to provide a threshing and sorting device equipped with a grain sieve that can solve these problems.

[Means for solving problems]

The threshing sorting device according to the present invention is a threshing sorting device in which a swinging sorting plate with a grain pan provided on the upstream side is arranged below the handling chamber, and a winnow and a collection section are provided below the swinging sorting plate. The grain sieve arranged adjacent to the downstream end of the grain pan has a plurality of straight members arranged in parallel in the vertical direction and a plurality of through holes through which the straight members are inserted, respectively, in accordance with the arrangement interval of the straight members. It is constructed by vertically and horizontally combining a plurality of perforated horizontal plates, and elastic bodies are provided at both ends of the horizontal plates to set a mutual separation distance between adjacent horizontal plates. It is characterized by the fact that it is interposed in each case.

[Effect]

When using a threshing and sorting device with such a configuration, the elastic bodies at both ends of the grain sheave are compressed and deformed by applying an appropriate external force to compress and deform the elastic bodies, and the distance between the horizontal plates set by the elastic bodies is By appropriately narrowing the mutual separation distance between the grain sheaves, the grain sheave mesh can be made appropriately small.
Note that when the external force is released, the elastic bodies return to their original states, and the grain sheave mesh also returns to its original size.

[Effect of idea]

Therefore, by using the threshing sorting device of the present invention, the grain size of the grain sieve can be easily changed without replacing the grain sieve.
It becomes possible to deal with cases where multiple types of crops are threshed with one grain sheave.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 4, the waste straw processing device 2 is located between the left and right crawler traveling devices 1,
A reaping device 4 for reaping planted grain culms is disposed at the front of this machine equipped with a threshing sorting device 3, thereby forming a combine harvester.

As shown in FIG. 1, the threshing and sorting device 3 includes a handling chamber 7 in which a handling barrel 5 is mounted on a shaft in the center and a crimp net 6 is arranged in the lower part; An oscillating sorting plate 8 provided below, a winnower 9 provided below the oscillating sorting plate 8 for sending oscillating sorting air, and threshed grains separated by the oscillating sorting (the first It consists of a first item collection section 10, a second item collection section 11, etc. for collecting items (objects and second items).

Now, on the upstream side of the swing sorting plate 8, there is provided a grain pan 12 that constitutes a part thereof.
Furthermore, a grain sieve 20 is arranged adjacent to the downstream end of the grain pan 12. As shown in FIG. 2, this grain sheave 20 is arranged in parallel in the vertical direction, and both ends 21a, 21a are attached to fixed plates 28, 28.
A plurality of straight members 21 made of piano wire or the like are connected to each other, and a plurality of through-holes through which the straight members 21 are inserted are respectively drilled in accordance with the arrangement intervals of the straight members 21. It is constructed by combining a plurality of horizontal plates 23 vertically and horizontally. Moreover, elastic bodies 24 are provided at both ends of the horizontal plates 23 for setting the mutual distance between the adjacent horizontal plates 23, 23.
are interposed respectively. Specifically, by externally fitting and engaging elastic bodies 24 such as compression coil springs to the left and right end straight members 21, 21 of the straight members 21, respectively, between adjacent horizontal plates 23, 23. , an elastic body 24 is interposed between adjacent horizontal plates 23, 23, respectively. Further, racks 25, 25 are connected to the most upstream horizontal plate of the horizontal plates 23, that is, at the bottom of both left and right ends of the board 22, so as to extend toward the upstream side of the board 22. 25,2
A rotating shaft 27, which has pinions 26, 26 attached to both ends that engage the teeth of the racks 25, 25, is connected to the racks 25, 25.
Two shafts are supported by bearings (not shown) provided on both side walls of the swing sorting plate 8 so as to be located below the oscillating sorting plate 8.

When using a threshing sorting device having such a configuration, by rotating the rotating shaft 27, the racks 25, 25, that is, the base plate 22 are moved downstream, as shown in FIG. 24... is compressed and deformed, and the horizontal plate 2 is set by the elastic body 24...
By narrowing the mutual separation distance between 3 and 23,
The mesh size of the grain sheave 20 can be made smaller. On the other hand, if the rotating shaft 27 is rotated in the opposite direction to return to its original state, the elastic bodies 24 return to their original state, and the mesh size of the grain sheave 20 also returns to its original size.

In FIG. 1, reference numeral 30 denotes a straw dispersion cylinder provided above the upstream base end 31a of the stroke rack 31 constituting the terminal end of the swing sorting plate 8;
32 is a guide fixed to the upper part thereof. This straw dispersion cylinder 30 has many protrusions 30a around the periphery.
... are planted radially, and the guides 32
Processing teeth 33 are also protrudingly provided on the inner surface of the dispersion cylinder 30, and the processing material scraped up by the projections 30a as the dispersion cylinder 30 rotates is strongly loosened by relative movement with the fixed processing teeth 33, and then It is fed onto a stroke rack 31.

[Brief explanation of drawings]

The drawings show an embodiment of the threshing and sorting device according to the present invention; FIG. 1 is a longitudinal sectional view of the threshing and sorting device, FIG. 2 is a perspective view showing the main parts thereof, and FIGS. 3A and 3B are the main parts. An explanatory diagram showing the functions, FIG. 4 is an overall side view of the combine harvester. 7... handling room, 8... rocking sorting board, 9... karawine,
10, 11...Recovery Department, 12...Glenpan, 2
0...Glensieve, 21...Straight material, 23...
Horizontal plate, 24...elastic body.

Claims (1)

[Scope of utility model registration request] A threshing sorting device includes a swinging sorting plate 8 provided with a grain pan 12 on the upstream side, arranged below a handling chamber 7, and a winnowing machine 9 and collecting parts 10, 11 arranged below the swinging sorting plate 8. The grain sheave 20, which is arranged adjacent to the downstream end of the grain pan 12, has a plurality of straight members 21 arranged in parallel in the vertical direction, and a plurality of through holes through which the straight members 21 are inserted. It is constructed by vertically and horizontally combining a plurality of horizontal plates 23, each of which is perforated in accordance with the arrangement spacing of the horizontal plates 23, and adjacent horizontal plates 23, A threshing and sorting device characterized in that elastic bodies 24 are interposed between the grains 23 and 23 to set a mutual separation distance between them.