JPH0536352Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a dust treatment device for a thresher that threshes grain culms.

(b) Prior Art Conventionally, a threshing machine in which a processing chamber is provided on the side of the processing chamber that extends rearward from the processing chamber and has a processing cylinder inside, and a discharge port is provided on the rear wall of the processing chamber is disclosed in Japanese Patent Application Publication No. 1982-
This is already known from Publication No. 21520.

Furthermore, a threshing machine is already known in which a discharge port is provided on the handling chamber side at the rear end of the processing chamber.

(c) Problems to be solved by the invention Among the known threshing machines mentioned above, in the former, the material processed in the processing chamber is not subjected to the throwing action by the processing teeth of the processing barrel, but is loosened only by the transfer action;
Since the waste falls lazily from the discharge port onto the oscillating sorting body, if the processed material is wet, it is discharged in lumps without being dispersed, resulting in poor processing and sorting performance.

In addition, in the latter case, the processed material that has moved to the rear end of the processing chamber is transferred from the front edge of the discharge port to the rear of the processing teeth and falls onto the swinging sorter without resistance, which improves processing performance. If the dispersion performance during discharge was low and the treated material was wet, it would fall in the form of lumps, resulting in poor sorting performance.

(d) Means for solving the problem The present invention is a processing system that includes a processing cylinder on the side of the processing chamber that extends rearward from the processing chamber and has a large number of processing teeth protruding from the outer peripheral surface. In a threshing machine provided with a chamber, an outlet is provided on the handling chamber side at the rear of the processing chamber,
A partition plate that enters between the processing teeth of the processing cylinder is provided on the peripheral surface of the processing chamber along the front edge of the discharge port, and no partition plate is provided in a portion of the processing chamber that faces the partition plate. By connecting the rear end of the processing chamber to the discharge port by bypassing the opposite side of the discharge port 27, the partition plate prevents the material to be processed from directly transferring to the discharge port at the front edge of the discharge port of the processing chamber. The above-mentioned problems were solved by not providing a partition plate on the opposite side and creating a communication state so that the object to be processed always bypasses the processing cylinder before being discharged, thereby improving processing performance and throwing performance.

(e) Effect Grain and small straw waste generated in the handling room fall from the receiving net onto the swinging sorter and are sorted out, just like in a conventional threshing machine, and cut ears and relatively large straw waste are sent to dust. It moves from the mouth to the processing chamber and is processed by the processing cylinder.

Since the partition plate prevents the transfer of the material to be processed immediately before the discharge port at the end of the processing chamber, the material to be processed is carried around the processing cylinder, bypasses the opposite side, and is then discharged from the discharge port, allowing for sufficient processing. In addition, when the dust is thrown from the discharge port, it is thrown from the back toward the discharge port, so it can be discharged toward the opposite side of the dust sorting room while being strongly dispersed.

(F) Example An example of the present invention will be explained with reference to the drawings.
Reference numeral 1 denotes a handling barrel which is rotatably supported in a handling chamber 2 with its front part tilted downward. The oscillating sorting body 6 installed in the sorting air passage is connected to a transfer plate 7 facing directly below the receiving net 3.
, the screening net 9 facing above the first receiving gutter 8, and the second receiving gutter 1
A feed chain 13 and a clamping rail 14 are provided opposite to each other on the outside of the handling port 12, and a suction windmill 15 is provided on the side wall opposite to the feed chain 13. .

In addition, the feed chain 13 at the rear of the handling room 2
A dust inlet 16 is provided at the lower side, and a region extending from the dust inlet 16 to the rear of the handling chamber 2 and the rear of the dust sorting chamber 4 includes a forward transfer chamber 17a and a rear processing chamber 17b.
A processing section 17 consisting of
A transfer spiral 19 is installed in the transfer chamber 17a of the handling cylinder shaft 18, which is installed from the inlet plate to the processing chamber 17.
A processing cylinder 2 having a large number of processing teeth 20 in b.
1 is installed.

As shown in FIG. 3, the processing chamber 17b has a peripheral wall 23 having a shape that is a part of an octagonal cylinder, with a portion slightly larger than half protruding outwardly from the side wall 22, and the inside thereof is a peripheral wall 23 shaped like a part of an octagonal cylinder. It is covered with a processing trunk receiving net 25, and the rear end of the processing trunk receiving net 25 and the rear wall 26
A horizontal discharge port 27 facing the suction windmill 15 is provided between the suction windmill 15 and the outer edge of the processing barrel receiving net 25 at the rear end of the processing barrel receiving net 25, i.e., in front of the discharging port 27. It is integrated with the frame 28, and the inner peripheral edge is the processing cylinder 21.
An arcuate partition plate 30 is provided close to the outer peripheral surface of the peripheral wall 23, and no partition plate is provided on the opposite side, that is, the inner peripheral surface of the peripheral wall 23. is connected to.

Moreover, the suction port and the discharge port 27 of the suction windmill 15
Partition guide plates 31 and 32 are provided before and after.

In the above-mentioned threshing machine, the front part of the handling barrel 1 is lowered to make it easier to receive the grain culm supplied from the pre-processing device of the combine into the supply port, and the grain culm is supplied to the harvested grain culm and the grain culm generated in the handling chamber 2 is lowered. The grains and small straw waste being threshed fall from the receiving net 3 onto the transfer plate 7 of the oscillating sorter 6, and the grains in the material to be sorted are transferred to the sorting net 9.
At the same time, the waste is screened and carried out of the machine from the first receiving gutter 8, and the second material is sieved by a stroke rack 11, screened by air, and transferred to the second receiving gutter 10.
The straw waste is returned to the transfer plate 7 or the handling chamber 2 through the second thrower, and the straw waste is returned to the suction windmill 15 and the dust exhaust port 3.
3 is ejected from the machine.

Then, the cut ears and long straw generated in the handling chamber 2 enter the transfer chamber 17a from the dust inlet 16, and are sent to the processing chamber 17b by the transfer spiral 19, whereupon the processing cylinder 2
The grains are processed by the processing teeth 20 . After being selected, it is discharged to the machine base by the suction windmill 15.

At that time, the suction windmill 15 at the rear of the processing chamber 17b
On the side, the partition plate 30 receives the object to be processed and prevents it from moving backward, so that the object to be processed does not fall downward as shown by arrow b in FIG. 3, but instead falls as shown by arrow a. Since the straw is carried around to the feed chain 13 side by the processing teeth 20, takes a detour, and then is discharged, processing performance, straw waste throwing performance, and wind selection performance are improved.

(g) Effects of the invention The present invention provides a processing chamber in which a processing cylinder 21 is provided at the side of the processing chamber 2 and extends rearward from the processing chamber 2 and has a large number of processing teeth 20 protruding from the outer peripheral surface. 17b, a discharge port 27 is provided on the processing chamber 2 side at the rear of the processing chamber 17b, and processing teeth 2 of the processing cylinder 21 are provided on the peripheral surface of the processing chamber along the front edge of the discharge port 27.
0...A partition plate 30 is provided that enters between the processing chambers 17b and the rear end of the processing chamber 17b is connected to the discharge port 27 by not providing a partition plate in a portion of the processing chamber 17b that faces the partition plate 30. Since the opposite side of the discharge port 27 is bypassed and communicated with, the broken ears and relatively large straw waste generated in the handling room 2 during the threshing process are caught by the partition plate 30 in front of the discharge port 27 and sent to the discharge port. 2
7, and is discharged from the discharge port 27 through the side without a partition plate opposite to the discharge port 27, bypassing the processing cylinder 21, and the processing cylinder 2
1 does not fall downward from the discharge port 27 without being processed sufficiently, processing performance can be improved, and the processing teeth 20 of the processing cylinder 21 that rotate from the outside to the inside can sufficiently disperse the waste. It can be thrown powerfully and the sorting performance can be significantly improved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
FIG. 1 is a longitudinal sectional side view of the thresher, FIG. 2 is a longitudinal sectional plan view of the same, and FIG. 3 is a sectional view taken along line AA in FIG. 17...processing department, 17b...treatment room, 20...
Processing teeth, 21...Processing cylinder, 25...Processing cylinder receiving net,
27...Discharge port, 30...Partition plate.

Claims (1)

[Scope of utility model registration request] In a threshing machine, a processing chamber 17b is provided on the side of the processing chamber 2 and is provided with a processing chamber 17b that extends rearward from the processing chamber 2 and is equipped with a processing cylinder 21 having a large number of processing teeth 20 protruding from the outer peripheral surface. A discharge port 27 is provided on the processing chamber 2 side at the rear of the chamber 17b, and a partition plate 30 is provided on the peripheral surface of the processing chamber along the front edge of the discharge port 27 to enter between the processing teeth 20 of the processing cylinder 21. A partition plate is not provided in a portion of the processing chamber 17b facing the partition plate 30, so that the rear end of the processing chamber 17b is communicated with the discharge port 27 by bypassing the opposite side of the discharge port 27. An exhaust dust treatment device for a threshing machine characterized by the following.