JPH0119663Y2 - - Google Patents

Description

[Detailed description of the invention] Generally, in the threshing process in the handling chamber of a threshing machine, a partition plate is provided on the inner circumferential surface of the handling chamber to cut the long straw and thresh out the ears, etc., and the threshing is transferred to the culm outlet side. to some extent.

When the mounting seat is fixed to the partition plate in order to attach the partition plate to the receiving net that constitutes the handling room, the distance between the mounting seat and the tip of the handling tooth that faces it becomes narrow, and straw waste may become clogged. In order to prevent the grain from being damaged, the width of the mounting seat was narrowed as shown in Figure 6, but this had the disadvantage that the partition plate would fall due to the resistance it received as the grain was moved.

In order to eliminate these drawbacks, the mounting seat was made wider and the handling teeth adjacent to the mounting seat were made shorter than the other handling teeth, which improved the stability of the mounting seat and prevented clogging of straw debris and grain. It was possible to prevent damage to the grains.

However, unlike a receiving net, the cylinder cover receives the threshed grains and processes them with its handling teeth without letting the threshed grains leak out, so when a partition plate is provided, the area around it bulges outward due to resistance and the grains are disposed of. There were problems such as the performance deteriorated and the area around the part where the partition plate was fixed could be deformed or damaged.

This invention prevents the gap between the handling teeth and the mounting seat of the partition plate from becoming too narrow on the receiving screen side of the handling room, which would cause straw debris to clog or damage the grains, and on the cylinder cover side, the grains are removed. To provide a threshing device for a threshing machine that can perform processing with high performance, and in which the means for improving the threshing performance improves the strength of the cylinder cover and prevents its deformation, thereby further improving the threshing performance. In a threshing machine, a partition plate is erected on the inner circumferential surface of a handling chamber made up of a receiving net and a cylinder cover, along the direction of rotation of handling teeth installed in a handling barrel,
A pair of ribs is provided at a portion of the cylinder cover that faces adjacent handling teeth, a partition plate is provided between these ribs, and the height of the handling teeth adjacent to the partition plate is set higher than the other handling teeth. It is characterized by being low.

The embodiments shown in the drawings will be explained below.
Reference numeral 1 denotes a handling room in which a handling cylinder 2 is mounted on a handling cylinder shaft 3, and the lower part of the handling cylinder 2 opposite to the handling opening a is made up of a receiving net 4, and the upper part is a cylinder cover 5. It is made up of.

Reference numeral 6 denotes a swinging sorting body that extends from the bottom of the receiving net 4 through the first receiving gutter 7 and the second receiving gutter 8 to the dust exhaust port 8a, and is connected to the terminal end of the transfer plate 9 and is the most A sorting net 10 facing above the receiving gutter 7, a transfer plate 11 and a stroke rack 12 protruding from the top of the first flow plate toward the top of the second receiving gutter 8, and a dust inlet 1 provided at the end of the handling chamber.
A transfer plate 15a and a stroke rack 15b are directed from below to the dust removal chamber formed by the suction windmill 14.
A main sorting air path in which the sorting air from a winch 17 provided below the supply port 16 side of the handling room 1 blows through the sorting net 10 through the top of the first receiving gutter 7, and further leads to the suction windmill 14; Second receiving gutter 8 from below the first receiving gutter 7
The dust is distributed to a sub-selecting air passage which blows out through the upper part to the dust exhaust port 8a.

Attachment seats 19, 19 having round holes 19a are welded to the ends of the partition plate 18 attached to the inner circumferential surface of the receiving net 4 constituting the handling chamber 1, and the bolts 2
The partition plate 18 is attached to the inner circumferential surface of the receiving net 4 by passing the wire from the inside through the round hole 19a and the receiving net 4 and tightening the nut 21.

Also, the partition plate 1 attached to the cylinder cover 5
8a has a base bent at a right angle, and this bent portion is welded to the inner peripheral surface of the cylinder cover 5.

Furthermore, among the many handling teeth implanted on the outer peripheral surface of the handling barrel 1, handling teeth 22 adjacent to the partition plates 18, 18a and facing the mounting seat 19 are different from other handling teeth 2.
3...The cylinder cover 5 is provided with ribs 24, 24 which protrude into the handling chamber 1 at a portion facing the short handling teeth 22, and these ribs 2
4 and the tip of the short handling tooth 22 is approximately equal to the distance l between the inner peripheral surface of the cylinder cover 5 and the long handling tooth 23.

When the above-mentioned threshing machine is used as the threshing device of a combine harvester, the grain culm harvested by the reaping device is subjected to handling depth adjustment by a handling depth adjustment device that tilts toward the culm, and then the ears are transferred to the supply port. 16, and the stock part is transferred to the starting end of the feed chain 25 and the pinching rail 26, where it is threshed while being pinched and conveyed. .

The grain culms inserted into the handling chamber 1 from the handling port a are shredded by the handling teeth 22 and 23 that rotate together with the handling barrel 2, and are moved bypassing the partition plate 18. ... and the ribs 24, 24 are subjected to the same shedding process as between the other handling teeth 23... and the cylinder cover 5, and the ribs 24, 24 increase the rigidity of the cylinder cover 5 and prevent its deformation. This improves threshing performance.

In addition, the grains that move on the receiving net 4 side while being carried around by the handling teeth 22, 23, etc. are removed by the short handling teeth 22... at the front and back of the partition plate 18, as well as the other handling teeth 23... There are mounting seats 19 on the front and back of the partition plate 18 for handling straw waste, ear cuts, etc., which are processed, but the handling teeth 22 facing the mounting seats 19 are short, so they can be transferred smoothly without clogging, and the shedding can cause damage. There's nothing to do.

The grains and small straw waste treated in this manner fall from the receiving net 4 onto the transfer plate 9 and are transferred to the sorting net 10, where the grains are transferred to the sorting net by the shaking action of the oscillating sorting body 6. 10 to the first receiving gutter 7 and remaining on the sorting net 10, and those discharged from the dust inlet 13, transferred by the transfer plate 15a, and leaked from the stroke rack 15b are collected by the transfer plate 11. The transported waste is further transferred and sorted by the stroke rack 12 located above the second receiving gutter 8, and the leaked second material is transferred to the second receiving gutter 8.
and is returned to the transfer plate 9 by the second thrower 27 through the second return passage on the side of the handling chamber 1, where it is re-sorted. Also, the stroke rack 1
The straw waste remaining on the dust outlet 8a is discharged to the outside of the machine.

Further, the straw remaining on the upper straw rack 15a is sucked out of the machine by the suction windmill 14.

The present invention provides a threshing machine in which a partition plate is erected on the inner circumferential surface of a handling chamber composed of a receiving net and a cylinder cover, along the direction of rotation of the handling teeth installed in the handling barrel, as described above. A pair of ribs is provided at a portion of the cylinder cover that faces adjacent handling teeth, a partition plate is provided between these ribs, and the height of the handling teeth adjacent to the partition plate is lower than the other handling teeth. Therefore, even if the partition plate is attached to the periphery of the handling chamber with the mounting seat, the grain removal will easily pass through the gap at the tips of the short handling teeth adjacent to the partition plate, and straw waste will become clogged in front and behind the partition plate. This can prevent grain damage.

In addition, although the handling teeth are shorter in the area adjacent to the partition plate attached to the cylinder cover, the ribs provided on the cylinder cover face these short handling teeth, so the tips of the handling teeth and The distance between the cylinder cover and the cylinder cover does not become abnormally wide, and the threshing process can be carried out as well as in other parts.

Furthermore, since the cylinder cover does not allow the threshing to leak out, it is subjected to a greater pressing force than the receiving net, and if a partition plate is attached to this cylinder cover, the resistance will be even greater, but when the partition plate is attached. A pair of closely spaced ribs are provided on both sides of the exposed portion, which may bulge outward and reduce processing performance.
Both sides of the part to which the partition plate is attached will not be deformed or damaged, and the partition plate will not be tilted, making it possible to maintain the intended processing action for a long period of time.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Figure 1 is a longitudinal cross-sectional view of the threshing machine, Figure 2 is a cross-sectional view of the same as above, Figure 3 a is a plan view of the mounting seat welded to the end of the partition plate, b is a side view of the same, and Figure 4 is a cylinder. A cross-sectional view showing the relationship between the cover, the partition plate welded thereto, and the handling teeth, FIG. 5 a cross-sectional view showing the relationship between the receiving net, the mounting seat, and the partition plate, and FIG. 6 a a plan view of the conventional mounting seat. b is a side view of the same as above. 1... Handling chamber, 2... Handling barrel, 18, 18a... Partition plate, 19... Mounting seat, 22, 23... Handling tooth, 2
4...Rib.

Claims (1)

[Scope of utility model registration request] In a threshing machine in which a partition plate is provided upright on the inner circumferential surface of a handling chamber composed of a receiving net and a cylinder cover, along the rotational direction of the handling teeth installed in the handling barrel, the handling chamber adjacent to the cylinder cover is A threshing device characterized in that a pair of ribs is provided at a portion facing the teeth, a partition plate is provided between these ribs, and the height of the handling teeth adjacent to the partition plate is lower than that of the other handling teeth. Threshing device in the machine.