JPS6121969Y2 - - Google Patents

Description

[Detailed description of the invention] This invention makes it possible to adjust the suction port of the cross-flow fan forward and backward, thereby ensuring optimal dust removal performance (sorting performance) without changing the rotation speed of the suction fan, etc. It concerns a threshing machine.

When threshing high-moisture materials such as wet materials or materials with a large amount of generated waste, straw waste with a high specific gravity and a large amount of waste are discharged onto the oscillating sorting plate in the sorting air path, and these wastes are shaken. It may accumulate on the dynamic sorting board and cause clogging.
In order to increase the amount of No. 2 reduction and unnecessarily increase the load on the handling cylinder, etc., conventionally, when threshing wet materials, etc., the number of revolutions of suction fans and pressure fans was specially increased to carry out constant sorting, Measures were taken to maintain dust removal performance, but wind power increases in proportion to the rotation speed of the fan until it reaches a certain limit, but once this limit is exceeded, the wind power gradually decreases. There is a limit to this, and in order to increase the air volume, the fan itself must be made larger. The drawback is that the aircraft inevitably becomes larger.

In addition, even if the air volume is increased, the fan's intake port is fixed and cannot be moved, so the opening of the intake port cannot be changed back and forth along the swinging sorting plate, which improves dust removal performance and sorting performance. It was technically extremely difficult to completely control this.

The present invention has been made based on the above-mentioned circumstances, and the inlet side of the partition plate that partitions the inlet and exhaust ports of the cross-flow suction fan is directed toward the swinging sorting plate, and the circumference of the cross-flow fan is By adjusting the partition plate forward and backward, the suction force of the cross-flow fan and the opening portion of the intake port can be controlled back and forth along the swinging sorting plate. , simply adjust the inlet side of the partition plate to move forward or backward according to the characteristics of the threshing material (for example, wet material, material that easily generates a lot of waste, dry material, low-efficiency material with poor growth, low specific gravity, etc.) Only straw waste can be reliably sucked and quickly discharged outside the machine, and it is possible to prevent accumulation and clogging of waste on the oscillating sorting plate, and
It is possible to reduce the amount of secondary waste such as straw waste as much as possible, reducing the burden of processing in the handling room, and ensuring optimal dust removal and sorting performance at all times, regardless of the nature of the threshing material. The aim is to provide a threshing machine.

The structure of the present invention will be explained with reference to an embodiment shown in the drawings. 1 is a machine frame of a threshing machine, 2 is a handling barrel shaft mounted on the machine frame, and 3 is fixed to the handling barrel shaft 2. A receiving net 4 is stretched below the handling cylinder 3, and a handling chamber 5 is formed thereby.

6 is a feed chain provided along the handling opening 5a, and 6 is a clamping rail. Reference numeral 7 denotes a processing cylinder provided below the feed chain 6. The processing cylinder 7 is pivotally supported parallel to the processing cylinder shaft 2, and a discharge auger 7a is integrally fixed to one end of the processing cylinder 7. There is. 8 is a pressure fan, 9 is the first gutter, and 10 is the second gutter. 11 is a No. 2 thrower whose discharge port faces the No. 2 reduction chamber on the side of the treatment chamber 5.

Reference numeral 12 denotes a lower swinging sorting plate located below the receiving net 4 and provided in the sorting air passage 13, and is composed of a non-porous stepped transfer section 12a and a fine particle sorting leakage net 12b. It is something. A stroke rack 14 is disposed in the extending direction of the lower swing sorting plate 12, and the base end of the stroke rack 14 faces below the dust outlet 7'a of the discharge auger 7a. An upper swinging sorting plate 15 is provided.

On the other hand, 16 is a cross-flow fan for dust removal,
The cross-flow fan 16 is formed by fixing a large number of impellers 16a, each having a length substantially the same as the width of the sorting air passage 13, between both side plates 16b, and located above the front end of the upper swinging sorting plate 15 in the sorting and transfer direction. It is located and arranged. Reference numeral 17 denotes a partition plate that partitions the intake port X and the exhaust port Y of the cross-flow fan 16, and this partition plate 17 is located below the cross-flow fan 16 and attached along the outer peripheral surface of the fan 16. It constitutes a part of the casing of the cross-flow fan 16 together with a cover plate 18 fixed above the fan 16. The partition plate 17 is divided into a guide plate 17a fixed on the exhaust port Y side and a slide plate 17b provided on the intake port X side. It is housed so that it can move forward and backward in the circumferential direction, and when the slide plate 17b moves forward, as shown in the phantom lines in FIGS. 1 and 3, the lower distance between the intake ports X narrows and the intake ports When the slide plate 17b is retracted, the vertical distance between the intake ports X widens and the intake ports X also face above the stroke rack 14, as shown by the solid line.

Reference numeral 18' denotes a rod that penetrates through the slide plate 17b, and both ends of the rod 18' are slidably supported in long holes 19 formed in both side plates 17'a, 17'a of the guide plate 17a. By tightening the handle 20 screwed to one end, the slide plate 17b
is positioned and fixed at a desired position. 20
a is watusha. In addition, in the figure, 3a is the handling tooth, 2
1 is a discharge rod transfer chain.

Next, the operation of the present invention constructed as described above will be explained. Feed chain 6 and clamping rail 6a
The grain rods with their stock ends held in between are threshed while passing through the handling room 5. Single grains and small scraps of the handled material leak through the mesh of the receiving net 4 and fall onto the lower swinging sorting plate 12, while ear cuts and twig stalks are repeatedly struck by the handling teeth 3, etc. After being made into single grains, the grains leak through the receiving net 4 and fall onto the lower swinging sorting plate 12. On the other hand, after long straw and large waste are processed in the processing cylinder 7, the discharge auger 7
a, and is discharged onto the upper swinging sorting plate 15 from the dust outlet 7'a.

The single grains, waste, long straw, etc. that have fallen onto the lower swinging sorting plate 12 and the upper swinging sorting plate 15 as described above are subjected to specific gravity sorting on the swinging sorting plates 12 and 15, and then After being air-sorted by the sorting wind generated by the cross-flow fan 16, the fine grains are transported to the outside of the machine from the No. 1 gutter 9, and small debris and relatively light straw are sucked through the intake port X of the cross-flow fan 16. is discharged from the machine through the exhaust port Y. Also, cross flow fan 16
Debris and long straw with a high specific gravity that are not sucked up fall onto the straw rack 14 and are discharged outside the machine.

Therefore, when threshing wet materials or materials with a large amount of generated waste, large amounts of waste and large amounts of waste with a large amount of water adhering to it from the handling chamber 5 through the processing cylinder 7 and the discharge auger 7a are removed. Since long straw etc. are discharged one after another onto the upper swinging sorting plate 15, troubles such as stagnation and clogging are likely to occur.In such cases, loosen the handle 20 of the partition plate 17 and move the slide plate 17b to the first
Cross flow fan 16 as shown in the figure and the phantom line in FIG.
When pushed out in the circumferential direction, the cover plate 18 and slide plate 17
The inlet port X of the cross-flow fan 16 formed by
Moving from point to point B, the vertical width of the intake port X is narrowed, and the intake port X is in a state directly facing the front end of the upper swinging sorting plate 15 in the sorting and transfer direction. Therefore, as the suction force of the cross-flow fan 16 is increased, this increased strong suction wind acts directly on the upper swinging sorting plate 15, and is discharged onto the upper swinging sorting plate 15. It is possible to reliably suck up waste with a large specific gravity, a large amount of long straw, etc., and quickly discharge it from the exhaust port Y to the outside of the machine, and completely prevent waste, stagnation, and clogging on the upper swinging sorting plate 15. It is possible to prevent an increase in the amount of No. 2 reduction due to a large amount of debris falling from the front end of the sorting plate 15 into the No. 2 gutter 10.

Additionally, in the dust from the discharge auger 7a, there are some small spikes and single grains mixed in with the large waste and long straw, but in the case of low-efficiency wood or dry wood with poor growth and low specific gravity, Since the absolute amount of waste etc. discharged from the discharge auger 7a is small and the specific gravity of the ears and single grains is relatively small, if the above-mentioned strong suction air is applied to the upper swinging sorting plate 15, , single grains and ear pieces are also sucked together with the waste, resulting in an increase in scattering. However, in this case, if the slide plate 17b is returned to the position shown by the solid line in FIGS. 1 and 3, the vertical width of the intake port X will be widened, and the intake port X will also face above the stroke rack 14. A cross-flow fan 1 applies relatively gentle suction air to the oscillating sorting plate 15 and the stroke rack 14 to remove only debris from both.
6 can be reliably sucked and discharged outside the machine, and good dust removal (sorting) performance can be obtained.

Note that since the cross-flow fan 16 is provided over almost the entire width of the sorting air passage 13, the suction action is performed uniformly over the entire width of the sorting width, and the dust removal effect can be enhanced. In the dynamic sorting plate 12, grains with a high specific gravity and waste with a low specific gravity are dispersed and stratified on average, and together with this, the suction and wind sorting of the waste can be carried out extremely efficiently.

In the above-mentioned embodiment, a case was explained in which the swinging sorting plates were provided in two stages, upper and lower, in the sorting air passage 13, but the present invention uses one swinging sorting plate, and Of course, it is also possible to adopt a device that intensively sorts grains, long straw, etc., and in this case, the tip of the oscillating sorting plate can be extended to the inlet X side of the cross-flow fan 16. Just let it happen.

As described above, the present invention provides one or more oscillating sorting plates in the sorting air passage, and the oscillating sorting plate is positioned forward and upper of the front end in the sorting and transfer direction of the oscillating sorting plate to traverse substantially the entire width of the sorting air passage. A flow fan is mounted on an axis, and a partition plate is provided below the cross-flow fan to partition an intake port and an exhaust port. It is configured to be adjustable forward and backward along the circumferential direction, and configured to control the suction force of the cross-flow fan and the inlet opening portion back and forth along the swinging sorting plate by adjusting the forward and backward movement of the partition plate. Therefore, by simply adjusting the suction port side of the partition plate forward or backward according to the threshing material such as wet material or dry material, the strength of the suction amount and the effect of the suction wind can be adjusted without changing the rotation speed of the crossflow fan. It is possible to change the parts to the optimum condition, and it is possible to reliably suck up only waste such as straw and quickly discharge it outside the machine, preventing accumulation and clogging of waste on the swinging sorting plate. At the same time, it is possible to minimize the amount of secondary waste such as straw waste, which greatly reduces the burden of treatment in the handling room, and the cross-flow fan allows the waste to be thoroughly and uniformly distributed over the entire width of the sorting air channel. It can provide suction and sorting action, and has the effect of always ensuring optimal dust removal and sorting performance regardless of the properties of the threshing material.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a vertical side view of a threshing machine equipped with the present invention.
FIG. 2 is a longitudinal sectional front view of the same, FIG. 3 is a perspective view of the main part, and FIG. 4 is a partially cutaway sectional view of the main part. In the figure, 12 is a lower swinging sorting plate, 13 is a sorting air passage, 14 is a stroke rack, 15 is an upper swinging sorting plate, 16 is a cross-flow fan, 17 is a partition plate, X is an intake port, and Y is an exhaust port. .

Claims (1)

[Claims for Utility Model Registration] 1. During sorting, one or more swinging sorting plates are provided, and the sorting air path is located above and in front of the front end of the swinging sorting plate in the sorting and transfer direction, and crosses substantially the entire width of the sorting air path. A flow fan is mounted on an axis, and a partition plate is provided below the cross-flow fan to partition an intake port and an exhaust port. The structure is configured so that it can be adjusted forward and backward along the circumferential direction, and the suction force of the cross-flow fan and the inlet opening area can be adjusted and controlled back and forth along the swinging sorting plate by adjusting the movement forward and backward of the partition plate. A threshing machine featuring 2. A lower swinging sorting plate is provided below the receiving net, and a straw rack is arranged in the extending direction of the lower swinging sorting plate, and above the straw rack, the base end is connected to a dust exhaust port from the handling room. An upper swinging sorting plate facing downward is installed, and when the partition plate advances, the intake port of the cross flow fan becomes narrow with facing the upper swinging selection plate, and when the partition plate is retracted, the above intake port swings. The threshing machine according to claim 1, which is a registered utility model, characterized in that the threshing machine is constructed so that it is wide when facing onto the stroller rack together with the sorting plate.