JPH0620361Y2 - Oscillating sorting device for thresher - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a swinging sorting device of a self-throwing threshing machine that threshes and sorts grains or minor grains.

(B) Conventional technology Conventionally, an oscillating sorting body was installed in a sorting air passage extending from the lower part of the handling chamber receiving net to the dust sorting chamber behind it, and the leaking from the rear side of the handling chamber receiving net There is already known a threshing machine in which the swing sorting body is returned to the starting end of the sorting section.

(C) Problems to be solved by the device Since the retan pan of the known threshing machine was configured to return all the grains and straw waste leaked from the receiving net to the starting end of the sorting section, There has been a problem that the amount of the object to be sorted with respect to the sorting section becomes abnormally large, and the layer of the article to be sorted on the sorting section becomes thickest, and the sorting performance deteriorates.

When the dust is wet, a large amount of straw dust, which easily adheres to the dust, is generated, and the separation of the grain and the straw dust is deteriorated.

(D) Means for solving the problems In the present invention, an oscillating sorting body is installed in the sorting air passage extending from the lower part of the handling room to the dust sorting room behind it, and the fourth port is provided outside the handling room. In the threshing machine provided, in a portion corresponding to the rear part of the receiving screen of the rocking sorting body, a re-tanpan that covers the most sorting part and returns the leakage from the receiving net to the starting end side of the receiving net. Attaching, mounting a No. 4 transfer plate for transferring the falling object to the rear at a position corresponding to No. 4 opening of the swing selection body, and providing a front and rear between the front part of the No. 4 transfer plate and the rear part of the retan pan. By constructing an opening that communicates with the sewage chamber, the grain that has leaked from the terminal end of the receiving net in the sewage chamber is wind-selected by the handling cylinder wind to separate the straw debris from the rear end of the retan pan and the fourth transfer plate. It is blown from the opening formed at the start end of the to the No. 2 sorting unit, which reduces the amount of sorted products returned to the most sorting unit. The problem was solved of.

(E) Action During threshing caused by sandwiching and transporting grain culms and threshing in the handling cylinder, the grains and small straw debris leaked from the nets are the largest while being transported by the rocking sorter. After the sorting and the second sorting, the long straw is processed by the processing section, and the processed straw waste and the dust such as the straw waste discharged from the end of the rocking sorting body are discharged to the outside of the machine.

Then, the objects to be sorted that have leaked from the end side of the receiving net are wind-selected by the handling drum blast, and some straw waste is returned to the first end of the sorting unit together with the grains by the re-tan pan. The straw debris separated by the wind blows toward the No. 2 sorting section from the opening formed between the rear end of the re-tan pan and the beginning of the No. 4 transfer plate, and is returned to the No. 1 sorting section. It is possible to reduce the amount of sorted objects.

(F) Embodiments An embodiment of the present invention will be described with reference to the pre-treating threshing machine shown in the drawings. 1 is a handling barrel axially mounted in a handling room 2, and a blower 3 is from below a receiving net 5. A sorting air passage extending over the dust sorting chamber 6 is formed, and in this sorting air passage, a transfer plate 7, a first sorting section 10 made of a crimp net facing the first trough 8, and a second trough 11 are provided.
A swinging sorting body 13 constituted by a second sorting portion 12 made of a Straw rack and facing upward is erected so as to swing back and forth, and is provided between the first trough 8 and the second trough 11. The provided cross flow fan 14 blows air toward the second sorting section 12, and the fried cylinder 16 connected to the end of the first transfer spiral 15 in the most gutter puts this threshing device on the machine base of the combine. When installed, the lifted grains are put into the grain tank, and the reducing spiral cylinder 18 connected to the end of the second transfer spiral 17 in the second receiving net 11 transfers the second product to the transfer plate 7.
Reduce to.

Also, on the outside of the handle, feed chain 20 and pinch rail 21
And a straw conveying device 22 is provided at the rear of the culm, and from the outside of the dust outlet 23 provided at one end of the handling chamber 2 to the side of the dust sorting chamber 6. A processing cylinder 26 having a transfer spiral 25 attached to the front is axially mounted in a processing chamber 24 provided across, and a discharge port 28 opened toward the feed chain 20 side is provided at a terminal end of the processing cylinder receiving net 27. Is provided.

Further, a suction windmill 30 is mounted on the side of the feed chain 20 at the rear of the discharge sorting chamber 6, and a trough-shaped guide passage 31 in which a bottom plate is inclined downward is provided at a portion facing the suction windmill 30. .

Then, in the portion of the handling room 2 corresponding to the receiving net 5, the return pan 32 that covers the first sorting portion 10 and descends and slopes toward the start end of the first sorting portion 10, and a slightly higher portion behind it. No. 4 transfer plate 35 formed of a corrugated plate for transferring the No. 4 object dropped from No. 4 port 33 to the No. 2 sorting unit 12, the start end of the No. 4 transfer plate 35 and the re-tan pan 32. A frame body having an opening 36 formed between it and the end of the
40 is attached, and a low blocking plate 37 is projected on the upper surface near the end of the retan pan 32, and the starting end of the fourth transfer plate 35 rises diagonally toward the upper front and the receiving plate of the outlet 38. Straws and grains that have entered the lower part of 39 and discharged from the culm 38 are inherited and transferred.

When the threshing machine is mounted on a combine in the above-mentioned threshing machine, when the root portion of the harvested and transferred grain culm is sandwiched and transported by the feed chain 20 and the sandwiching rail 21, and the ear side is inserted into the supply port, the handling cylinder 1 Threshing process, and the grains and small straw debris in the threshing generated in the handling room 2 swing from the receiving net 5 to the swing sorting body 13
The transfer plate 7 or the bottom of the fourth port 33 descends to the supply port side and goes through the retan pan 32 that covers the top of the first selection section 10 to the first selection section 10 to undergo the wind selection and the sieve selection, The leaked grain is transferred to the side by the first transfer spiral, then the fried cylinder 16
The material to be sorted, which has been discharged and discharged by the first sorting section 10 to the second sorting section 12, is wind-selected by the sorting wind from the cross-flow fan 14 and sieve-sorted by rocking, and the leaked second The material is returned to the transfer plate 7 by the return spiral cylinder 18, and the straw waste remaining on the second sorting section 12 falls into the guide passage 31.

In addition, long straws, cuttings, etc. generated in the handling chamber 2 enter the processing chamber through the dust inlet 23, and are fed back by the transfer spiral 25, and the processing drum 26
By the above, the single grains and small straw waste fall on the second sorting section 12 and merge with the object to be sorted, and the straw waste that has moved to the end is discharged from the discharge port 28 to the second sorting section 12. It is thrown toward the end of the, and is thrown into the guide passage 31 as a dust together with the straw dust transferred from the first sorting section, and is sucked and discharged to the outside by the suction windmill 30.

Then, the grains and straw debris that have leaked from the end of the receiving net 5 are filtered by the handling wind, and the grains and a part of the straw debris fall onto the return pan 32 and slide forward, Is the selection section
Since it falls into the starting end side of 10, the joining target 5 leaks from the starting end side of the receiving net 5 and is sorted as described above.

The straw waste separated by the wind selection by the handling wind is blown backward from the opening portion 36, passes through below the fourth transfer plate 35, and falls into the second selection portion 12 to be processed for selection. The fourth object dropped from the mouth 33 is transferred by the fourth transfer plate 35 in the state that it does not most drop into the sorting section and is thrown toward the second sorting section 12, in which case the fourth transfer plate 35 is Prevents the sorting wind from blowing out to the fourth port 33.

(G) Effect of the device Since the device of the present invention is configured as described above, the grains and straw scraps that have leaked from the terminal end side of the receiving net 5 of the handling chamber 2 are wind-selected by the handling wind and are reduced by this. The objects to be sorted can be reliably sieved with a small amount of objects to be sorted by sliding on the retan pan 32 toward the starting end side and joining the starting end of the first sorting section 10. It is possible to prevent the straw separated by the above from returning to the first sorting section 10 by blowing out from the opening onto the second sorting section 12.
The sorting performance can be further improved.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view of an essential part, FIG. 2 (a) is a side view showing a relation between a fourth transfer plate and an outlet, (b) ) Is a side view of the Ritanpan, and FIG. 3 is a vertical sectional view of the thresher. 3 ... Blower, 6 ... Dust sorting chamber, 10 ... First sorting unit, 12 ... Second sorting unit, 13 ... Oscillating sorting body, 30 ... Suction windmill, 32 ... Ritanpan, 35 ...... No. 4 transfer plate, 36 ...... Opening

Claims (1)

[Scope of utility model registration request] 1. A dust sorting chamber 6 located from the lower part of the handling chamber 2 to the rear thereof.
In a threshing machine in which a swinging sorting body 13 is installed in a sorting air passage extending over, and a fourth port 33 is provided outside the handling chamber 2, a portion corresponding to the rear part of the receiving net 5 in the handling chamber 2, The return pan 32 that covers the most sorting part 10 and returns the leaked substance from the receiving net 5 to the starting end side of the receiving net 5 is attached, and the fourth opening of the swing sorting body 13 is attached.
No. 4 transfer plate to transfer the lost item to the part corresponding to 33
35, and the front part of the fourth transfer plate 35 and the return pan 32.
An oscillating sorting device for a threshing machine, characterized in that an opening portion (36) is formed between the rear portion and the rear portion so as to communicate with the front and rear.