JPS6227091Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rear sorting device for a swing sorting body in a threshing machine.

That is, a large number of sieve lines are installed at the rear of the chaff sieve, which is above the grain sieve, so as to face the upper part of the second gutter to constitute a swinging sorting body, and the sieve lines are provided with an upper side than a lower part of the front side. Conventionally, in a threshing machine configured to perform the second sorting by blowing a sorting air toward the grain sieve, the grains would bounce from the grain sieve side, pass between the sieve lines while riding on the sorting wind, and be scattered at the third screen. There was a drawback.

The present invention solves this drawback, and the grains scattered from the lower side to the sieve line side can be well guided and collected downward to the second gutter side without passing through the sieve line. It allows for good sorting,
It is provided that the structure is simple and can be suitably implemented.

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

FIG. 1 shows a sectional view of a threshing machine mounted on a combine harvester.A supply port 8 and a straw discharge port 9 are formed on both sides of the lower part of a handling chamber 7 in which a handling barrel 6 is installed, and a straw discharge port 9 is formed in the lower part of the handling chamber 7. A crimp net 10 is set up, and a downward dust inlet 11 is installed near the straw outlet 9 side, and a cross-flow is installed in the rear upper part of the sorting dust chamber 12 installed at the rear side of the handling chamber 7. A fan 13 is mounted on a shaft, and a third port 14 is installed at the lower rear side of the fan 13.

A swinging sorting body A is installed extending from the bottom of the handling chamber 7 to the sorting dust removal chamber 12 side, and the swinging sorting body A
A chaf sheave 2 formed of a large number of fins is installed in the upper part so as to be continuous with the feed pan 15, a grain sheave 1 made of a large number of fins is installed below the chaf sheave 2, and a rear end of the chaf sheave 2 is installed. The front parts of the sieve lines 4 arranged side by side at regular intervals are attached to a support frame 16 installed horizontally close to the sieve, and the rear ends of the sieve lines 4 are placed close to the cross-flow fan 13. They are installed at a slight incline, and a flow grain plate 7 is installed at the rear end of the oscillating sorting body A.
are constructed by integrally installing them diagonally.

Further, a cross-flow fan 18 is mounted on the lower side of the feed pan 15, and a No. 1 gutter 20 with a No. 1 conveyor 19 mounted on the shaft is installed below the grain sheave 1. The sorting shelf 21 is inclined and extends from the No. 1 gutter 20 so that the sorting shelf 21 extends from the No. 1 gutter 20 so that the sorting air from the cross-flow fan 18 flows from above the No. 1 gutter 20 to the grain sieve 1 side and further between each sieve line 4. A second gutter 3 with a second conveyor 22 mounted thereon is horizontally installed below the sieve line 4 and below the flow board 17. Configure.

A paddy scattering prevention plate 5 is integrally installed vertically below the front side of each sieving line 4 in the oscillating sorting body A. The rice scattering prevention plate 5 is formed to be long so as to be a part where the grains coming out from the rear come into contact with, and each paddy scattering prevention plate 5 has two adjacent sieve lines 4, 4.
The spacing L of each paddy scattering prevention plate 5 is inclined to face downward and the lower end 5a is located below the adjacent sieve line 4. They are installed and configured so that the distance is the same as the distance L.

Therefore, during work, the grains that leak from the chaff sieve 2 and are sorted by the grain sieve 1 are sorted by the sorting wind that flows from the cross-flow fan 18 as shown by arrow A, and fall into the first gutter 20. , the sorting wind is applied to each paddy scattering prevention plate 5 as shown in Figure 4.
It flows from below to above as shown by the arrow B, and flows to join the suction air by the rotating cross-flow fan 13 as shown by the arrow C, bouncing on the sorting shelf 21 and causing grain sieves. When the grains bouncing from the rear side of the paddy grains 1 are scattered toward the sieve line 4 side in the flow direction of the sorting wind, they hit the sloped lower surface side of each paddy scattering prevention plate 5 tilted in the vertical direction as shown by arrow D. It bounces downward and is collected directly into the second gutter 3.

In addition, while the waste material sent out from above the chaff sieve 2 is oscillated and sorted on each sieve line 4, it is blown up as shown by the arrow B on the upper side of the paddy scattering prevention plate 5, and the sorting wind and the cross-flow fan 13 side The second paddy is sorted by the suction air from the screen and flows down between the paddy scattering prevention plates 5, 5, and on the rear side of the sieve line 4, it falls from between them and falls into the second gutter 3, where it is passed through the sieve. Exhaust material from above the line 4 is sucked into the cross-flow fan 13 and discharged from the third port 14 to the outside of the machine.

In this way, the present invention configures a swinging sorting body by extending a large number of sieve lines to the rear of the chaff sieve above the grain sieve so as to face above the second gutter,
In a threshing machine configured to perform the second sorting by blowing sorting air from the lower part of the front side to the upper side of the sieve line, there are two adjacent sieve lines below the part of each sieve line through which the sorting air passes. Since the paddy scattering prevention plates facing downward and sloping between the sieve lines are installed vertically in parallel, it prevents grains from bouncing or flowing from the grain sieve side or its lower side to the sieve line side. The paddy scattering prevention plate below the sieve line guides the paddy downward and collects it to the No. 2 gutter side, eliminating the No. 3 scattering. In the sieving line, the paddy is passed between the scattering prevention plates and is sorted in the No. 2 sorting as before. It has the advantage that it can be carried out well and can be suitably implemented with a simple structure.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a sectional view of the threshing machine, FIG. 2 is an enlarged view of a part thereof, FIG. 3 is a part of FIG. 2, and FIG. A sectional view taken along the - line in the figure is shown. 1... Glen sieve, 2... Chaff sieve, 3
... No. 2 gutter, A ... Oscillating sorter, 4 ... Sieve line, 5
...Paddy scattering prevention board.

Claims (1)

[Scope of utility model registration request] At the rear of the chaff sieve, which is above the grain sieve, a large number of sieve lines are extended so as to face above the second gutter to constitute a swinging sorting body, and the sieve lines are provided with a sorting line from the lower part of the front side to the upper side. In a threshing machine configured to perform second sorting by blowing air, below each sieve line through which the sorting air passes, there is a scattering of paddy that slopes downward between the two adjacent sieve lines. A rear sorting device for a swing sorting body, characterized in that the prevention plates are vertically arranged in parallel.