JPH0220928Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a threshing sorting device for a combine harvester, a harvester, etc.

As for the conventional above-mentioned device, there is a
A crimp screen is provided for selective filtration that mainly leaks grains, and only the grains are taken out of the threshed material by the handling cylinder, and the processed materials that have not leaked through the crimp screen are passed from the end of the handling chamber onto the swinging sorting plate. The grains were then dropped into the tank, where the long straw, straw waste, etc. and the grains were again sorted. However, since a large amount of threshed material remains in the handling chamber, the performance of threshing the grain from the grain culm by the handling barrel itself deteriorates, resulting in the disadvantage that unhandled grain is likely to be left behind. Therefore, a processing room equipped with a processing cylinder was installed adjacent to the processing room, and the majority of the threshed material by the processing cylinder was sent into the processing room during the handling process, thereby improving the threshing performance of the processing cylinder. However, it had the disadvantage of increasing the size of the device as a whole.

In view of the above points, the present invention aims to improve the shedding performance of the handling cylinder while avoiding the increase in the size of the entire device, and to improve the grain recovery efficiency.
Furthermore, it is an object of the present invention to enable easy modifications to both the assembly surface and the performance changes.

In order to achieve the above object, the threshing sorting device according to the present invention is provided with a coarse sorting filtration section below the handling drum for sorting the threshed material into long straw and other straws, and A second conveyor consisting of a helical body and a conveying guide member is connected to the coarse selection filtration section, which agitates and transfers the processed material mainly composed of long straw that has not leaked through the selection filtration section and discharges it from the end of the machine. The first and second conveyors are provided at a lower part, and the first and second conveyors are provided in a state in which the processed material is transferred in parallel with each other and in the same direction, and each of the guide members is provided with a filtering section for sorting and leaking grains. ,
A screw conveyor for recovering the grains leaked through both the screening filter sections is provided in parallel with the first and second conveyors, and the first and second conveyors and the screw conveyor are connected to the first and second conveyors. It is characterized in that it is attached so that it can be inserted and removed from the terminal end side in the direction in which the processed material is transferred by the second conveyor.

In other words, of the threshed material handled by the handling drum, other than the long straw leaks to the second conveyor, the amount of threshed material subjected to the action of the handling drum is reduced as much as possible, and the handling drum is removed from the grain culm. It has become possible to improve the shedding performance by making it work well. Moreover, by agitating and transferring the threshed material on each of the first and second conveyors, it is possible to separate the grains from the branched grains as they are transferred, and the grains and the threshed material are originally contained in the grains. Since the grains contained in the grains are collected on the screw conveyor through the screening filtration section, it is possible to improve not only the threshing performance but also the grain collection efficiency. It has become possible to improve both the threshing performance and the grain recovery efficiency while avoiding this problem.

Furthermore, since the first and second conveyors and the screw conveyor are provided parallel to each other, it is possible to concentrate the transmission system on one side wall of the device, making it easy to simplify the drive configuration. Since both screw conveyors are configured to be installed by being inserted and removed from the same side of the device, they can be easily assembled, and furthermore, for example, the conveyance path can be lengthened to improve sorting performance. Even when modifying to change performance, it is sufficient to connect and add extension members to each component, which has the advantage of making the modification easy.

Hereinafter, embodiments of the present invention will be described in detail with reference to illustrative drawings.

A rough selection filtration section 2 made of a coarse mesh is provided below the handling cylinder 1, and is connected to the side of the rear end of the handling cylinder 1.
A first conveyor 5 consisting of a helical body 3 and a conveying guide member 4 is provided, and a second conveyor 8 consisting of a helical body 6 and a conveying guide member 7 is also provided below the handling cylinder 1, and both guides Parts 4, 7
Each lower part is composed of a fine receiving net and is provided with filtering sections 9 and 10 for selection, and a first screw conveyor 11 for collecting grains is provided below the second conveyor 8, and A second screw conveyor 12 is provided below the first conveyor 5 and is configured to supply the processed material to the conveyance starting end side of the second conveyor 8, and is configured to supply the processed material to the conveyance starting end side of the second conveyor 8. The material other than the long straw is leaked and supplied to the second conveyor 8, and the entire amount of processed material mainly consisting of long straw that has not leaked out is supplied to the first conveyor 5, and the first conveyor 5 uses the helical body 3. Along with the agitation and transfer, the grains with branches are threshed and the grains are separated, and the grains are sorted by the filtering part 9 for selection, and then
Leakage is supplied to the screw conveyor 12, and the processed material is supplied to the conveyance start end of the second conveyor 8, and
In the second conveyor 8, the grains are separated from the threshed material as they are stirred and transferred by the helical body 6, and the grains are sorted by the filtering section 10 for leakage and supplied to the first screw conveyor 11. The threshing and sorting device is configured to collect the grains into a tank 13.

At the rear of the handling cylinder 1, a drum 16 having rod-shaped bodies 15 distributed and protruded is provided at an upper position close to the feed chain 14, and the rod-shaped bodies 15 act on the waste straw conveyed by the feed chain 14. It is configured to fall and collect grains mixed in the conveyed waste straw, so-called small-sized paddy.

Fans 19, 20, and 20 are attached to the conveyance start end side of the rotating shaft 17 to which the helical body 3 of the first conveyor 5 is attached, and to both ends of the rotating shaft 18 to which the helical body 6 of the second conveyor 8 is attached, respectively, for stirring. It is configured to suck and discharge minute dust and the like in the threshed material being transferred to the outside of the machine and prevent it from leaking to the first screw conveyor 11 side.

The rotation shaft 21 of the handling cylinder 1, the rotation shafts 17, 18 of the first and second conveyors 5, 8, and the screw shafts 22, 23 of the first and second screw conveyors 11, 12 are arranged parallel to each other. At the same time, each front end side is made to protrude outside the case 24, and a belt transmission mechanism 25 of one belt is attached at the protruding part.
It is configured to be driven by.

Further, the drum 16 is rotatably provided around an axis parallel to the handling cylinder 1, and is configured to be driven from the rear end of the handling cylinder shaft 21 via a belt type transmission mechanism 26.

At the conveyance ends of the first and second conveyors 5 and 8, the case 24 is provided with dust exhaust ports 27 and 28 for discharging dust such as straw waste to the outside of the machine. configured to insert and remove the first and second conveyors 5 and 8 through the
In addition, in the first screw conveyor 11, through the communication port 30 with the lifting conveyor 29, and
In the second screw conveyor 12, the lid 31
The first and second conveyors 5, 8 and the first and second screw conveyors 11, 12 are inserted into and removed from the rear wall 24a of the case 24 through openings 32 that are removably attached and closed. In order to be easily assembled from the side, and even when the conveyance path of the threshed material is lengthened in order to improve the sorting performance, extension side walls are connected to the side walls 24b, 24b of the case 24, and the conveyors 5, 8 ,11,
12 is configured to be easily handled by connecting an extension member to each of them.

The coarse selection filtration section 2 may be, for example, one in which rod-shaped members are arranged side by side with a predetermined distance from each other.

In the embodiment described above, the entire transport guide member 7 is formed into the filtering part 10 for selection, but the filtering part 10 for selection may be provided only at the lower part in the circumferential direction.

In the above embodiment, the handling cylinder 1, the second conveyor 8, and the first screw conveyor 11, as well as the first conveyor 5 and the second screw conveyor 12, are arranged in parallel in the vertical direction, and the entire device is configured in a vertically elongated shape. However, various modifications are possible, such as changing the arrangement of each to create a horizontally elongated shape.

The helical bodies 3 and 6 are not limited to the above-mentioned coil spring shapes, but may also include, for example,
It may be plate-shaped as in a screw conveyor, or it may be a structure in which protrusions are successively provided at a predetermined interval in order to promote stirring in each of the helical bodies 3 and 6.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing sorting device according to the present invention, in which FIG. 1 is an overall vertical cross-sectional view, FIG. 2 is a cross-sectional view taken along the - line in FIG. 1, and FIG. 3 is a view taken along the - line in FIG. 1. , FIG. 4 is a view taken along the - line in FIG. 1. 1... Handling cylinder, 2... Filtration section for coarse selection, 3, 6...
Spiral body, 4, 7... Conveyance guide member, 5...
First conveyor, 8... Second conveyor, 9, 10...
...Selection filtration section, 11...Screw conveyor.

Claims (1)

[Scope of utility model registration request] A rough sorting filtration section 2 for sorting the threshed material by the handling drum 1 into long straw and other materials is provided below the handling drum 1, and the rough sorting filtration section 2 is mainly made of long straw that does not leak. A first conveyor 5 consisting of a helical body 3 and a conveying guide member 4 is provided, which stirs and transfers the processed material and discharges it from the terminal end to the outside of the machine. A second conveyor 8 consisting of a helical body 6 and a conveying guide member 7 is provided below the coarse selection filtration section 2, and the second conveyor 8 is provided below the coarse selection filtration section 2, and is configured to receive the processed material while agitating it and discharging it outside the machine from its terminal end. The first and second conveyors 5 and 8 are provided to be parallel to each other and transport the processed materials in the same direction, and both the guide members 4,
7 a screening filtration section 9 for sorting and leaking grains to each of them;
10, and a screw conveyor 1 for recovering the grains leaked through the two filtering sections 9 and 10.
1 is provided in parallel with the first and second conveyors 5 and 8, and the first and second conveyors 5 and 8 and the screw conveyor 11 are arranged in the direction in which the processed material is transferred by the first and second conveyors 5 and 8. A threshing sorting device characterized by being installed so that it can be inserted and removed from the terminal end.