JPH044506Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a sorting device such as a combine harvester.

(Prior art) In this type of sorting device, the grains and impurities that are threshed in the handling room and have leaked through the receiving net are sorted by a swinging sorter, but such sorting is performed by sorting by volume. Not only does it occupy most of the room, but it also occupies a large volume of the entire threshing device, and is the key to making the entire threshing device smaller, simpler, and lighter.

In addition, there were also significant negative factors such as the influence of the rocking and vibration of the rocking sorter on the threshing device, such as a decrease in durability and an increase in the required power.

Therefore, a method completely different from such conventional sorting methods has been proposed.

In other words, the material to be sorted that has fallen from the handling room is passed between the spiral and the net that is stretched like a gutter.
Sorting work is carried out by moving the spiral through rotation, and this makes it possible to achieve smaller size, simpler mechanism, lighter weight, higher performance, etc. compared to conventional sorting equipment, and is durable due to less shaking and vibration. Improving sexuality,
At the same time, it has also been possible to reduce power consumption.

(Problems to be solved by the invention) In the above-mentioned proposal, the material to be sorted transferred by the rotation of the spiraler is The drawback was that there was not enough air to blow against the air.

The present invention was devised to improve these points, and its purpose is to:
The purpose is to supply a sufficient amount of air to the objects to be transferred by the spiral and the trough-like sorting net.

(Means for solving the problem) In order to achieve the above object, the present invention includes providing numerous small holes in the first flow grain plate and the second flow grain plate, and The problem is solved by installing a suction fan above the spiral at the top of the grain flow board.

That is, in the present invention, a spiral is disposed below the handling chamber in parallel with the handling barrel axis and protrudes largely from the handling chamber in the axial direction, and is rotatably mounted in a trough-like sorting net. The material to be sorted that falls from the receiving screen in the handling room is sorted while being moved by a spiral, and the suction system has numerous small holes formed below the gutter-like sorting screen that are large enough to prevent grains from falling. A structure in which suction ports by fans are provided on the first grain board and the second grain board, and a suction fan is provided above the spiral that is arranged to protrude beyond the handling chamber on the second grain board side. I'm taking it.

(Example) The embodiments shown in the drawings will be described below.

Reference numeral 1 denotes a handling chamber of the threshing device, in which a handling drum 2 is rotatably mounted on a shaft, and the threshed grains are transferred from a receiving net 3 to a spiral 6 disposed parallel to the shaft of the handling drum.
to fall. This spiraler 6 protrudes larger than the handling chamber 1, and while the rotating spiral 6 moves the threshed grain toward its terminal side,
The grains leak through a receiving net-like sorting net 5 provided at the lower part of the spiraler 6, and the waste that does not leak is sent to the terminal side and discharged to the outside from the third port 7.

The grains and fine dust that have leaked through the trough-like sorting net 5 are disposed above the terminal end of the spiral 6, which is disposed to protrude beyond the handling chamber 1, in a direction cross with the axis of the spiral 6. The grains are sorted by a sorting wind generated by a suction fan 8 provided, and the grains fall onto a belt conveyor 9.

This belt conveyor 9 is a No. 1 screw conveyor 1 from the lower part near the starting end of the handling cylinder to the lower part near the terminal end.
Since it is a belt conveyor 9, there is no vibration noise compared to a swinging device, and rice can be transferred at a low cost.

Further, the sorting air as described above is selected by the sorting air sucked by the suction fan 8 from the suction port 10 of the side plate of the threshing machine, which has numerous small holes.

Then, the grains carried by belt conveyor 9 are 1
It fell into the gutter 11 and the screw conveyor 12
The paddy is transported to the paddy tank.

Then, the second item fell into the second gutter 13, and this second item fell into the second gutter 13.
The second object that has fallen into the gutter 13 is returned to the handling room 1 from the screw conveyor 14 via the swallow tube 15.

As shown in Fig. 2, countless small holes are formed in the first flow grain plate a and the second flow grain plate b where the first gutter 11 and the second gutter 13 are located. A suction port 20 by a suction fan 8 is provided.

Then, the handling room 1 and the No. 2 funnel 4 at the rear end of the handling room 1.
The processed materials are transferred by a spiraler 6 on a sorting net 5 in the shape of a receiving gutter corresponding to the first gutter and the second gutter and are sorted.

In addition, a suction fan 8 is disposed on the terminal end side of the spiraler 6 protruding from the handling chamber 1 in a direction crossing this axis.
As a result, fine dust particles that do not leak from the sorting net 5 are discharged from the large opening 16.

Reference numeral 17 indicates an intake port provided on the side plate of the threshing machine corresponding to the first gutter 11, which has the same configuration as the air intake port 10, and numeral 18 indicates an air intake port provided on the side plate of the threshing machine corresponding to the second gutter 13. It has the same structure as the intake ports 10 and 17.

(Effects of the invention) The present invention has a number of small particles on the first grain plate and the second grain plate located below the sorting transfer path, which is composed of a trough-like sorting net and a spiral inside. In addition to providing air intake ports for the holes, the structure includes a suction fan above the spiral that protrudes beyond the handling chamber on the second grain board side, so the intake ports for the first and second grain boards A sorting system is constructed in which the grains and dust pass through the gutter-like sorting net to the suction fan, and this allows the screw conveyor to pass through the gutter-like sorting net. Separation of grains and dust is carried out above, but the grains that have leaked through the gutter-like sorting net are collected from the belt conveyor into the No. 1 gutter. Since the particles are sorted at the first port, the sorting performance at the first port can be improved.

Moreover, since the sorting is done by the feed and wind from the spiral, it is possible to reduce vibration, improve durability, and reduce power consumption. Since it is disposed above the grain flow plate side, the space can be used effectively, and the entire apparatus can be made smaller and lighter, and furthermore, the mechanism can be simplified.

[Brief explanation of the drawing]

FIG. 1 is a cutaway front view showing the device of the present invention, and FIG. 2 is a perspective view of a grain board. 1... Handling room, 2... Handling barrel, 3... Receiving net, 5...
Gutter-like sorting net, 6...spiler, 8...suction fan, 10, 17, 18...intake port, 11...
No. 1 gutter, 13...2nd gutter, a...1st flow grain board, b
...Second style grain plate.

Claims (1)

[Scope of utility model registration request] A spiral is installed below the handling chamber in parallel with the handling cylinder axis, protruding largely from the handling chamber in the axial direction, and is rotatably mounted in a trough-like sorting net. In a system in which the fallen material is sorted while being moved by a spiral, one suction port is installed at the bottom of the gutter-like sorting net by a suction fan with numerous small holes large enough to prevent grains from falling into it. Provided on the second flow grain board and the second flow grain board,
A sorting device for a combine harvester, etc., characterized in that a suction fan is disposed above a spiral that is disposed to protrude from a handling chamber on the side of a grain plate.