JPS6211400Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a threshing sorting device that is provided with a return flow path that returns the second processed material from the sorting section to the starting end of the swinging sorting plate.

The above-mentioned threshing and sorting device is arranged so that fine grains mixed in the second processing material from the sorting section are re-sorted and taken out.
By directly returning the processed material to the sorting plate, the amount of processed material in the handling chamber increases due to the reduced material and the processing efficiency decreases, unlike when returning the processed material through the handling chamber. This has been taken into consideration to ensure that there are no Therefore, in the past, if the reduced product collided with the flow path forming wall in the reduction flow path or was applied to the sorting plate by its swinging motion, the handling effect on the twig-stemmed grains was insufficient. Grain is circulated through the machine many times without being singulated, which reduces work efficiency, and increases the amount of grain that is not singulated and is discharged outside the machine with dust, resulting in grain loss. was getting bigger.

The present invention enables efficient single-graining of the reduced material through simple modifications while directly reducing the second material to the sorting plate.
It is an object of the present invention to solve the above-mentioned drawbacks, and furthermore, to prevent the sorting performance of the sorting plate from deteriorating due to its configuration at a low cost.

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

As shown in Figure 1, threshing feed chain 1
The structure is such that the harvested grain culm supplied to the handling room 2 is threshed by the rotating handling drum 3, and the threshed waste straw is carried out of the handling room 2 by the feed chain 1. Below the processing chamber 2, there is a sorting plate 4 that can be freely driven and moved to handle the material to be processed, and a winch 5 that supplies sorting air in the direction of the rotation axis of the handling cylinder.
At the same time, a sorting section 7 configured to discharge dust together with the sorting wind from the dust outlet 6 and the outlet 23a of the dust collection fan 23 is provided, and thereby the harvested grain culm can be threshed. A threshing and sorting device for a combine harvester is configured to perform sorting of threshed products.

A screw conveyor 8 is provided at the bottom of the sorting section 7 to carry out the first processed material from the sorting section 7 to one side of the machine body, and the first processed material is transported out of the machine as the threshed material is sorted. It is arranged so that the extraction of the information is carried out.

A screw conveyor 9 for conveying the second processed material from the sorting section 7 to one side of the machine body is provided at the bottom of the sorting section 7, and a thrower extending from the terminal end of the conveyor 9 to the front end of the machine body. The conveyor 9 is connected to the cylindrical body 10 and the flow path 12a through which the extending end of the cylindrical body 10 and the front end of the sorting section 7 are inserted.
A reducing channel 12 is configured for returning the second processed material from the filter to the starting end of the sorting plate 4 by the action of the thrower 11, and a channel in which the processed material falls to the sorting plate 4 among this reducing channel 12 A rotary body 14 is provided in the communication passage 12a for colliding the material to be treated against the machine wall 13 forming the communication passage 12a, and a drive shaft 15 of the rotary body 14 is provided. The rotating body 14 is configured to be able to be driven by interlocking the belt with the rotational support shaft 16 of the barrel 3.
After the No. 2 processed material from the sorting section 7 is handled by colliding with the machine wall 13 at the location where the rotating body 14 is disposed, it is returned to the starting end of the sorting plate 4 and is sorted again.

A part of the machine wall 13 is formed of a mesh body to form a dust suction port 17 for the disposed portion of the drive rotary body 14, and the dust suction port 17 is connected to the suction port 19 of the winnowing machine 5 by a cylindrical body 18. The dust generated at the installation part of the driving rotary body 14 is sucked into the winnower 5 so that it is not supplied to the starting end of the sorting plate 4 together with the processed material, and is passed through the sorting air passage 20 along with the sorting air to the dust exhaust ports 6 and 23a. It is designed to be discharged from the machine.

The partition plate 21 shown in FIG. 2 is for preventing the second processed material from entering the handling chamber 2 through the crimp net 22 due to the action of the rotating body 14.

In summary, the present invention provides the above-described threshing and sorting device with a driving rotor 14 that causes the processed material to collide with the flow path forming wall 13 at the portion 12a where the processed material in the return flow path 12 falls onto the sorting plate 4. In addition, a dust suction port 17 is provided in the flow path forming wall 13 in the disposed portion of the drive rotary body 14 in a state in which the dust suction port 17 is communicated with the suction port 19 of the winch 5 in the sorting portion 7. .

That is, when the No. 2 processed material is returned to the sorting plate 4, it is forcibly collided with the flow path forming wall 13 and processed, so that the process of converting the reduced product into single particles can be carried out extremely efficiently. Although the processed material is directly returned to the sorting plate 4, it is possible to suppress the amount of grains that are circulated around the machine without being made into single grains or are discharged with dust, making the work more efficient and reducing grain loss. I was able to keep it to a minimum. In addition, a simple modification of just adding the driving rotary body 14 is required, which is advantageous from an economic point of view.

Incidentally, when the No. 2 processed material collides with the flow path forming wall 13, a lot of dust is generated, but if this generated dust is supplied to the starting end of the sorting plate 4 together with the grains, the return flow path 12 and the handling chamber 2 are This is the place where the processed material is supplied from both sides, and it is mixed into the processed material, which has a thick layer. However, when the dust generated at the processing area of the No. 2 material is sucked into the winnowing machine 5, it is discharged to the outside of the machine along with the sorting air through the sorting air passage of the sorting section 7, bypassing the starting end of the sorting plate 4, and being discharged. Therefore, it is possible to prevent dust from being supplied to the processing material retention area, where if dust is supplied, the sorting ability will be significantly reduced considering the amount of dust. In addition, in the part of the sorting plate 4 corresponding to the passage of the sorting wind, the layer of the material to be processed is relatively thin due to the progress of oscillating sorting of the material at the terminal end, so some dust is supplied. However, the sorting performance does not deteriorate as much as on the starting end side. Therefore, by sucking the dust from the location where the rotating body 14 is disposed, into the winnowing machine 5, it is possible to prevent the deterioration of the sorting performance as much as possible in order to improve the handling performance of the second object to be processed. Moreover, the dust intake port 17 is
9, it becomes possible to effectively utilize the originally provided chisel 5 as a means for bypassing dust, which is economically advantageous.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing sorting device according to the present invention, FIG. 1 is a vertical side view, FIG. 2 is a cross-sectional front view,
FIG. 3 is a partially cutaway plan view. 4...Sorting board, 5...Kingen, 7...Sorting section, 1
2... Reduction channel, 12a... Processed material falling channel portion, 13... Channel forming wall, 14... Drive rotor,
17...Dust intake port, 19...Intake port.

Claims (1)

[Scope of utility model registration request] This threshing sorting device is provided with a return flow path 12 that returns the No. 2 processed material from the sorting section 7 to the starting end of the oscillating sorting plate 4, and the processed material in the return flow path 12 falls onto the sorting plate 4. A driving rotor 14 is provided in the portion 12a to collide the processed material against the flow path forming wall 13, and a dust suction port 17 is provided in the flow path forming wall 13 at the portion where the driving rotor 14 is disposed. The threshing sorting device is characterized in that it is provided in communication with the air intake port 19 of No. 5.