JP2000152716A - Separation apparatus in thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a separation apparatus of a thresher, having improved separation capacity and classifying ability, while having compactly constituted machine body by arranging the first and the second winnowers at specific positions, and sending separation air for the second winnower from upper position than the position of that for the first winnower to a separation room. SOLUTION: This separation apparatus in a thresher has the first winnower 11 installed in the lower position of a middle part of a separation net 3 at the lower part in a classification room 10, and the second winnower 14 installed in the neighbor of the more upstream side of the first winnower. The classification wind for the first winnower 11 is separated to upper and lower side of the separation room 10. The separation air for the second winnower 14 does not blow through upward within the range to a blowing opening 15 installed in the middle part of the classification net 3 in the shaft direction of a threshing cylinder 5, and almost all separation air is guided in the horizontal direction so as to blow out from a blowing opening 15 into the interior of the separation room 10. The separation air for the second winnower 14 is regulated so as to be supplied to the separation room 10 from the upper side of the separation air for the first winnower 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting device in a threshing machine and is used for a self-removing type combine.

[0002]

2. Description of the Related Art In this type of threshing machine, a threshing machine in which a plurality of Karino are arranged is disclosed, for example, in Japanese Utility Model Laid-Open No. 3-508.
No. 30, JP-A-2-34132, JP-A-61-61
For example, it is disclosed in Japanese Patent Application Publication No.

[0003]

However, in the case of the first configuration, the large-diameter Karamin which supplies the mainstream sorting wind is located behind the swing sorting body and from the front end of the handling room receiving net. Is also located on the outside, a small-diameter first pressure fan below the sorting section,
A small-diameter second pressure fan or the like is provided. However, in such a configuration, the threshing machine itself becomes large due to the longitudinal direction of the sorting unit becoming longer, so that the transmission mechanism and the mowing unit provided on the front side of the threshing machine have to be disposed forward, which is heavy and large. And combine. In addition, unless three sorting fans are provided in the sorting unit, the sorting performance cannot be improved, and the structure and the transmission mechanism become complicated, resulting in an increase in cost.

[0004] In the second means, a small-diameter cross-flow fan is provided diagonally forward and upward of the pressurized-air fan, and the outlet of the cross-flow fan leaks from the handling chamber through the receiving net. This is a configuration in which a feed pan provided at the front end of an oscillating sorter for transferring a leaking object communicates with a space between a transfer start end and a receiving net. However, in such a configuration, the wind blown out from the outlet of the cross flow fan easily enters the handling room through the leak start end of the receiving net and becomes like an air curtain, so that the grain stalk becomes wet. If the conditions are poor, thresh will be less likely to stagnate or leak under the influence of the wind. for that reason,
Unhandled material in the handling room may be filled, causing a decrease in work efficiency and a decrease in work performance due to the occurrence of damaged rice such as falling out.

[0005] The third means is that the Karino and the cross flow fan are located outside the front end of the crimp net, so that the sorting section becomes large, the threshing machine becomes heavy and large, and the size of the combine becomes large. Becomes a factor. Further, since the outlet of the cross flow fan is looking into the space between the front end of the crimp net and the transfer start end of the chaff sieve, the blown out wind enters the handling chamber through the front end of the crimp net. This may hinder the movement or leakage of thresh and cause a decrease in threshing efficiency or sorting performance.

[0006]

SUMMARY OF THE INVENTION The present invention provides a sorting apparatus for a threshing machine which increases the threshing efficiency and improves the sorting performance, and employs the following technical means. In other words, a grain culm supply port is provided on one side, and a straw port is provided on the other side, and a sorting screen is provided below and a handling chamber is constructed with an interior shaft mounted on a handling cylinder, and a handling chamber is formed below the sorting net. In the side view of the threshing machine, a first sorting machine is provided at the lower part of the sorting room at the lower part of the middle of the sorting net, and a sorting direction is provided. From the good side, the first transfer spiral and the second transfer spiral are arranged in this order, and it is formed closer to the better side of the first Karamin than the first Karamin and has a smaller diameter than the first Karamin. A second Karino, which is located below the net and is located below the transfer means for transferring the thresh-processed material that has leaked from the sorting net below the middle part of the sorting net, is placed above and below the sorting room. The second wind is separated at the center of the sorting net in the axial direction of the handling cylinder. Most of the sorting wind is guided in the horizontal direction and blows out from this outlet toward the inside of the sorting chamber, and is supplied to the sorting chamber from above the first Karin sorting wind. This is a sorting device in a threshing machine having a configuration to perform the above.

[0007] Further, the direction of supply of the sorting wind of the first Karino and the direction of the sorting wind of the second Karino, the swinging direction of the swing sorting device, and the lower part of the sorting net on the side of the grain culm supply port are provided so as to leak from the sorting net. 2. The sorting device in a threshing machine according to claim 1, wherein the transfer direction of the transfer means for transferring the thresh processed product below the intermediate portion of the sorting net is the axial direction of the handling drum.

Further, the threshing process is performed by three fans of a dust extractor provided above a straw rack provided at a sorting end side of a sorting machine of a first Karamin and a second Karamin. 3. The method according to claim 1, wherein a wind is selected.
A sorting device in the threshing machine described in 1).

[0009]

[Function] Most of the thresh-processed material that has been threshed in the handling room by the handling cylinder leaks from the sorting net in the intermediate part from the grain culm supply port side in the axial direction of the handling cylinder, and The thresh-treated product containing a large amount of grains is transferred toward the inside of the sorting chamber by the transfer means. On the other hand, a part of the threshing products that did not leak during this time leaked from the rear of the sorting net, and the remaining threshing products that did not leak undergo another processing operation.

[0010] The leaked material is transferred toward the discharge side of the swing sorting device and subjected to a swing sorting operation, and the leaked material leaking from the front of the handling chamber is removed by the handling cylinder. There is no blow-through in the middle of the sorting net in the axial direction, and there is no blow-through, and most of it moves in the horizontal direction and blows out from this blowing outlet toward the sorting room. The sorting wind generated by the second Karin supplied to the sorting chamber from above the sorting wind of the first Karin, and then the sorting wind of the first Karino that blows upward.

[0011] Therefore, the sorting wind of the second Karino does not enter the handling room from the sorting net with a large amount of leakage, and the leaked material leaked and sent near the sorting net is directed to the transfer side. Because it can be bathed, it is effective for sorting and transferring moist leaks, and it can increase the sorting efficiency and can increase the work width for the conditions of grain culm to thresh and improve the working efficiency. it can. In addition, since the leaked material is subjected to the rough sorting while being transferred by the moving means, the sorting function by the sorting style of the second Karamino is improved.

Drops such as grains and small straw chips that have leaked to the middle and lower parts of the sorting room are located below the middle part of the sorting net by the first Karino, which has a larger diameter than the second Karin. The wind is selected by the supplied large air sorting wind. Then, the grains still fall and are collected in the first transfer spiral, while unprocessed grains such as keys are blown backward and collected in the second transfer spiral, and undergo the next processing operation.

The processed material such as large straw waste which has not fallen to the lower part of the sorting chamber is provided with a first rack, a second rack and a dust collector in a straw rack provided at the transfer end of the swinging sorting apparatus. Since the wind is selected by the sorting wind of the three fans and then discharged outside the machine, the thresh-processed product can be collected without any stagnation or clogging, and the kernels most carefully selected for the transfer spiral can be collected. In addition, the arrangement of the first and second Karino is rational, and the aircraft can be made lightweight and compact.

[0014]

[Effect] Although the airframe can be made lightweight and compact, the sorting processing capacity can be enhanced and the sorting performance can be improved, which is effective for use in a combine.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the configuration of the handling room 4 will be described. The handling room 4 is provided with a grain stalk supply port 1 on one side, a straw opening 2 on the other side, and a handling cylinder 5 as an interior shaft. are doing. Reference numeral 3 denotes a sorting network, and reference numeral 16 denotes a conveyer for holding.

The processing chamber 17 is constructed so that the processing cylinder 18 is mounted on an inner shaft, and the supply port 20 at the start end communicates with the exhaust port 19 of the handling chamber 4 to lengthen the processing steps. In addition, the processing chamber 17 is opened such that the terminal end faces the rear part of the sorting chamber 10. And the spiral processing cylinders 21, 21 ', 2
1 ″ is a transfer spiral 22 and a processing claw 23 as shown in the drawing.
Are provided in the sorting room 10 below the starting end portion of the handling room 4 near the grain culm supply side, and a plurality of the untreated materials are arranged in the horizontal direction and leaked through the sorting net 3 of the handling room 4. Is processed while being transported backward. Reference numeral 24 denotes a suction / dust generator.

The swing sorting apparatus 9 has a grain 6 at a starting end, a straw rack 7 at an end, and a guide shelf 8 at an intermediate portion.
Are provided, and are swingably supported. In the lower part of the sorting room 10, the first Karamin 11 is provided below the middle part of the sorting net, and the first transfer spiral 12 and the second transfer spiral 13 are arranged in this order from the upper side.

The second Karamin 14 is smaller in diameter than the first Karamin 11 using a sirocco fan.
An air outlet 15 for the sorting wind is provided to face the above-mentioned grain sieve 6. The first Karino 11 has a speed change pulley 26 mounted on the input side of the rotary shaft 25 and a transmission pulley 27 mounted on the output side. In addition, 1
Reference numeral 4 has a speed change pulley 28 mounted on the rotation shaft.

[0021] The two Karamins 11 and 14 are provided with a gearshift lever.
From 29 each shift pulley 26 depending on the lot,
28 are connected so as to be able to change the speed, so that the speed can be changed. Reference numeral 30 denotes a second reduction device, which is configured to be able to reduce the second product to the spiral processing cylinders 21, 21 ′, 21 ″.

Next, the operation will be described.
By driving the rotating parts of the fuselage, the sorting wind by the first Karin 11 is diverted above and below the sorting chamber 10, and the sorting wind generated by the second Karin passes through the substantially horizontal air passage and the axis of the handling cylinder. In the direction of the sorting net in the middle part, there is no blow-through up to the outlet, and most of it is guided in the horizontal direction and is blown out from this outlet toward the sorting room side, and sorting of the first Karamin It is supplied into the sorting room from above the wind.

When the culm is supplied to the starting end of the conveying device 16 where the culm is nipped, the culm is supplied from the supply port 1 to the handling chamber 4 while being conveyed, and the threshing process is performed by the rotating handling cylinder 5. Receive. After the thresh is threshed, it is still conveyed and discharged from the straw outlet 2 outside the machine.

As described above, when the threshing action continues, the thresh-processed material is removed from the sorting net 3 by the spiral processing cylinder 2 of the sorting room 10.
1, 21 ', 21 ", and is further transported rearward by the transport spiral 22 while being further processed by the processing claw 15. As described above, the sorted material that has leaked from the handling chamber 2 is:
Under the action of the spiral processing cylinders 21, 21 ′, 21 ″, the ends reach the Glen 6 of the swinging sorting device 9 and are sorted by the sorting wind from the outlet 15 of the second Karami 14. .

In this way, the processed material that has reached the sorting chamber 10 is oscillated and sorted by the oscillating grain 6 and subjected to the wind sorting action of the first Karamin 11 in which the grains flow downward. Will be. And the processed material is the first transfer spiral 1
Second, the sized and the second product are separated and supplied to the second transfer spiral 13, respectively, and the third product is discharged from the shelf of the storage rack 7 to the outside.

Next, when selecting a processed material having a large amount of straw waste, the speed change lever 29 is operated to the speed increasing side. Then, the speed change pulleys 26 and 28 are operated on the speed increasing side, so that the speed of the gear 11 and the speed of the second gear 14 can be respectively increased first and the like. In this case, the second Karaoke 14 has two gearshift pulleys.
Since the effects of the steps 26 and 28 are weighted, the speed increase range can be made wider than that of the first Karino.

Therefore, the second Karamin 14
The relatively large straw debris can be removed by blowing up from the bush 6, and the burden on the first Karaoke 11 can be reduced.

[Brief description of the drawings]

FIG. 1 is a cutaway front view showing one embodiment of the present invention.

FIG. 2 is a cut-away side view showing one embodiment of the present invention.

FIG. 3 is a graph showing the operation of an embodiment of the present invention.

FIG. 4 is a cutaway plan view showing one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grain supply port 2 Discharge port 3 Sorting net 4 Handling room 5 Handling cylinder 6 Glen sieve 7 Straw rack 8 Guide shelf 9 Oscillating sorting device 10 Sorting room 11 Daiichi Karamino 12 First transfer spiral 13 Second transfer Spiral 14 second Karamino 15 outlet

Claims (3)

[Claims] 1. A culm supply port is provided on one side, and a straw port is provided on the other side, and a sorting net is provided below and a handling chamber is constructed by mounting a handling cylinder on an interior shaft. A sorting room provided with a swinging sorting device so as to be able to swing is formed below the net, and the first Karamin is provided at the lower part of the sorting room, below the middle part of the sorting net, in a side view of the threshing machine. Along with the sorting direction, the first transfer spiral and the second transfer spiral are arranged in this order from the upstream side. A second Karino, which is located below the sorting means and is provided below the transfer means for transferring the thresh-processed material leaked from the sorting network to the lower part of the middle of the sorting network, and the sorting wind by the first Karin It is divided into upper and lower chambers, and the second Karino sorting wind blows out in the middle of the sorting net in the axial direction of the handling cylinder. There is no blow-through upward to the mouth, and most of the sorting wind is guided in the horizontal direction and is blown out from this outlet toward the sorting room side, and the sorting room is located from above the first Karamino sorting wind. Sorting equipment in a threshing machine configured to be supplied to 2. The sorting direction of the first Karino sorting wind, the sorting direction of the second Karino sorting wind, the swinging direction of the swing sorting device, and the dropping from the sorting net provided below the sorting net on the grain culm feed opening side. 2. The sorting device in a threshing machine according to claim 1, wherein the transfer direction of the transfer means for transferring the thresh processed product below the intermediate portion of the sorting net is the axial direction of the handling cylinder. 3. A threshing process using three fans of a dust extractor provided above a straw rack provided at a sorting end side of a sorting machine of a first Karamin and a second Karamin sorting wind and a swing sorting apparatus. The sorting device in a threshing machine according to claim 1 or 2, wherein wind sorting is performed.