JPS6211401Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a No. 4 processing device in a threshing machine.

In other words, a pressure fan is installed below one end of the swinging sorter that extends from the bottom of the handling room to the dust exhaust side, and a suction dust extractor is installed above the other end. In a threshing machine configured with a No. 4 gutter installed above the suction dust extractor, the stuck grains can be reliably collected from the straw discharged from the No. 4 gutter, and the stuck grains will not fall out together with the stuck grains. It is possible to effectively remove the dust that comes from the filter without accepting it into the sorting section side, and to perform the sorting well. Moreover, it can prevent the dust from coming out forcefully to the dust exhaust side, and it has a simple structure and is suitable for use. It is provided so that it can be implemented.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a side sectional view of a threshing machine mounted on a combine harvester. A handling barrel 11 is mounted on a shaft in a handling chamber 1 which has a supply port 10 and a straw removal port 4 on both front and rear sides of the lower part. A dust inlet 13 connected to the straw outlet 4 is formed downward at the terminal end of the crimp net 12 stretched downward.
A long swinging sorter A equipped with a grain sheave 14 and a chaff sheave 15 is installed from the lower side of the handling room 1 to the dust removal side, and a long swinging sorter A equipped with a grain sheave 14 and a chaff sheave 15 is installed at the rear of the machine, which is the direction in which the swinging sorter A extends. A pressure fan 2, which is an axial flow fan, is installed below one end of the oscillating sorting body A, and a conveyor 18 is installed inside the first gutter 17 below the grain sieve 14. No. 2 gutter 1 on the lower side of the other end of the swinging sorting body A
A No. 2 conveyor 20 is mounted on a shaft inside the conveyor 9, and is constructed in the same manner as the conventional structure.

A suction port 21 is provided above the other end of the oscillating sorting body A.
A suction dust remover 3 is installed with the dust outlet facing downward and the discharge port 22 facing the rear of the machine. A No. 4 gutter 5 is installed, which extends toward the passage 7 side and whose lower side faces above the swing sorting body A. A partition plate 6 is diagonally installed in the middle of the No. 4 gutter 5 to partition it into front and rear sections. , In the middle of the particle fall path 8 formed on the rear side of the No. 4 gutter 5 between the partition plate 6 and the suction dust ejector 3 side, there is an opening from above the suction dust ejector 3 to the rear of the machine. A dust exhaust air passage 9 is formed to extend so as to communicate with the dust exhaust air passage 9, and is installed so that the pressure air generated by the air pressure fan 2 is blown into the dust exhaust air passage 9 from below the grain falling passage 8. .

Therefore, during threshing work, the straw discharged from the straw discharging port 4 is lifted upward in the No. 4 gutter 5 on the front side of the partition plate 6 as shown by arrow A, and is removed by the straw discharging chain 23. The straw is carried out to the rear of the machine as shown by the arrow B in the straw removal passage 7, but the grains that fall from the straw in the No. 4 gutter 5 fall and oscillate on the partition plate 6 as shown by the dotted arrow C. The grains, etc. that fall from the waste straw received by the sorting body A and transported through the conveyance path 7 are shown by arrow D from the pressure fan 2 side, flowing downward in the grain drop path 8. The prickly grains, etc. are sorted out by the pressure air blown up in this way, and the prickly grains fall directly into the swinging sorter A below. As shown in E, the dust flows into the dust exhaust air path 9 and is discharged outside the machine.

For this reason, it is possible to sufficiently drop the grains from the waste straw on the front and upper sides of the partition plate 6, and moreover, the grains can fall through the straw grain falling path 8 without being obstructed by the waste straw on the rear side of the partition plate 6. This makes it possible to wind-select the stuck grains and discharge straw waste to the outside of the machine, and also by blowing out the wind inside the machine through the dust exhaust air passage 9, the wind pressure inside the machine can be weakened. ,
This means that the dust can be weakened so that it does not come out too quickly.

In this way, the present invention is equipped with a pressure fan below one end of the oscillating sorter that extends from the bottom of the handling room to the dust exhaust side, and a suction dust extractor above the other end. In a thresher configured with a No. 4 gutter installed from the outside of the straw mouth to the upper side of the suction dust extractor, the No. 4 gutter is partitioned by an intermediate inclined partition plate, and the front and rear upper sides of the partition plate are on the straw removal passage side. The filter is installed so as to open at the side of the machine, and the parting particle falling path formed between the partition plate and the suction dust extractor side passes through the upper side of the suction dust extractor and extends to the rear side of the machine. Since it is configured to be connected to the dust exhaust air path, the particles falling from the waste straw discharged from the No. 4 gutter can be collected from the top of the partition plate, and from the path where the particles fall without being obstructed by the waste straw. The particles can be collected quickly and reliably, and the particles that fall from the particle fall path are well screened, and the waste is discharged as is from the dust exhaust air path, so the sorting section side This means that the dust can be sorted properly without having to accept it, and since the wind escapes from the dust exhaust air path, the wind pressure inside the aircraft can be reduced by that amount, making it easier to reduce dust accumulation. It has the advantage of being able to be suitably implemented with a simple structure.

[Brief explanation of the drawing]

The drawing shows a side sectional view of a thresher that is an embodiment of the present invention. 1... Handling room, A... Oscillating sorter, 2... Pressure fan, 3... Suction dust extractor, 4... Straw exhaust port, 5...
No. 4 gutter, 6... Partition plate, 7... Straw removal passage, 8...
Particle fall path, 9...dust exhaust air path.

Claims (1)

[Scope of utility model registration request] A pressure fan is installed at the bottom of one end of the oscillating sorter that extends from the bottom of the handling room to the dust exhaust side, and a suction dust exhauster is installed at the top of the other end. In a threshing machine configured by installing a No. 4 gutter over the upper side of the duster, the No. 4 gutter is partitioned by an intermediate inclined partition plate, and the front and upper sides of the partition plate are opened to the straw removal passage side. The middle part of the particle fall path formed between the partition plate and the suction dust extractor side is communicated with the dust exhaust air path that passes through the upper side of the suction dust remover and extends to the rear of the machine. No. 4 processing device characterized in that it is configured in series.