JPH04121112A - Thresher - Google Patents

Abstract

PURPOSE:To prevent the generation of clogging at a dust-discharging opening site and also improve a grading performance for treated articles by linking an angle between a dust-transferring valve and the rotation direction of a threshing cylinder to a vertical position of a grain pan on a shaking grading plate in a specific state. CONSTITUTION:When an angle theta of a dust-transferring valve is increased, a grain pan 17 is lowered and the vertical distance of the grain pan from a dust- discharging opening 1a is widened to prevent the clogging of treated articles dropped from the dust-discharging opening at the grain pan. When the angle of the dust-transferring valve 20 is decreased, the grain pan 17 is raised to reduce the splash of grains caused by the rebounding of the grains on the grain pan.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a threshing device.

[Conventional technology]

Conventionally, as shown in Japanese Utility Model Application Publication No. 2-46529, a large number of dust feeding valves are provided on the wall of the handling chamber so that the angle can be adjusted, and the threshed material is handled by a handling drum by adjusting the angle of these dust feeding valves. Some devices are designed to change the degree of rearward conveyance of the cylinder, that is, the rearward conveyance distance per unit rotation of the handling cylinder.

With this configuration, when the amount of stem culms sent to the handling room per unit time is small, the angle of the dust feeding valve is made smaller, the force of the rearward conveyance is also reduced, and the amount of material to be handled in the handling room is reduced. In addition, when the load torque of the handling barrel is not too low by allowing the dust to remain in the handling chamber appropriately, and when the amount of stem culms per unit time is large, the angle of the dust feeding valve is increased to transfer the rearward conveying force. By increasing the conveyance capacity, it is possible to prevent the processing material from clogging in the handling chamber, and to prevent the load torque of the handling drum from becoming too high, so that good threshing can be achieved according to the amount of grain supplied. It was being made into.

[Problem to be solved by the invention]

However, if the amount of stem culms supplied is large, the amount of waste such as cut straw coming out of the dust exhaust port at the rear of the handling room will also increase, and as mentioned above, the action of the dust exhaust valve will also help increase the amount of dust discharged. Therefore, in some cases, there is a problem in that a blockage occurs between the dust exhaust port and the grain pan that is located below the exhaust port and receives the dust.

In particular, if it is a threshing stem culm or a long culm, the cut straw will be long and clog more easily, and the handling teeth will come into contact with waste materials such as long straw that are stagnant near the dust outlet, causing abnormal noise. Sometimes it happened.

An object of the present invention is to provide a threshing device free from the above-mentioned problems.

[Means to solve the problem]

For the above purpose, the present invention provides a dust sending valve that transfers the threshed material to the rear as the handling drum rotates in the threshing device.
The rotating direction and angle of the handling cylinder can be changed and adjusted in the handling chamber, and a grain pan of a swinging sorting plate located below the dust outlet in the handling chamber can be moved up and down with respect to the swinging sorting plate. The dust feeding valve and the grain pan are linked so that as the angle becomes smaller, the grain pan moves upward, and as the angle becomes larger, the grain pan moves downward. This is a characteristic configuration.

[For production]

According to the above configuration, when the angle of the dust feeding valve increases, that is, when the amount of culms supplied per unit time is large, the grain pan descends and the vertical distance between it and the dust exhaust port increases, so that the dust does not fall from the dust exhaust port. A large amount of processed material can be transported without clogging the grain pan section. When the angle of the dust exhaust valve becomes small, that is, when the amount of culms supplied per unit time is small, the grain pan rises and the vertical distance between the dust exhaust port and the grain pan narrows. Since the drop is small, the inertial force due to falling is also small, and it is less likely to be scattered to the surroundings due to bounce from the Glen Pan, or it will be smaller than when the Glen Pan is descending. It becomes possible to shift to a state where it receives the transport action.

〔Effect of the invention〕

Therefore, even if the amount of threshing is large, there is almost no clogging at the dust outlet, and when the amount of threshing is small, the sorting performance for the waste from the dust outlet is improved, resulting in better overall performance. We were able to provide an improved threshing device.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 3, the threshing device includes a threshing section (A), a sorting section (B), a collecting section (C), and a second grain reducing section.

The threshing section (A) has a handling drum (2) mounted on a shaft in a handling room (1), and a receiving net (3) stretched along the lower side of the handling drum (2). The culm, which has been pinched and conveyed by the chain (4), is handled and processed by the handling cylinder (2), and the processed material is leaked and supplied onto the sorting section (B).

The sorting section (B) consists of a swinging sorting plate (5) and a winnow (6) that sends sorting air to the swinging sorting plate (5). The oscillating sorting plate (5) includes left and right frames (7) that can be oscillated,
(7) on both sides of the grain pan (8) for sorting;
A continuous grain sieve (9) is provided at the lower rear of the grain pan (8), and two upper and lower stroke racks (1, 0) and (11) are provided in the front and rear.

Then, it leaks from the receiving net (3) and the front grain pan (
15) The processed material that has passed through the front stroke rack (16) is stopped by the grain pan (8), and is oscillatedly transferred to the rear grain sieve (9) while being sorted by specific gravity. It is oscillated and transferred to the rear while being sorted from the bottom, and is discharged from the rear end. On the other hand, the dust outlet of the handling room (1) (
The processed material discharged from 1a) is transferred to the upper straw rack (
10) is installed upright at the rear grenpan (17), and
While separating the leakage, it is oscillated rearward and discharged to the lower straw rack (11).
The leakage is screened again and discharged from the rear end of the machine. Furthermore, (1
2) is a dust exhaust fan that discharges straw waste to the outside of the machine along with the sorting air.

The collection section (C) includes a top collection section (13) that collects paddy that has leaked from the grain sieve (9), and a top collection section (13) that collects paddy that has leaked from the grain sieve (9), and a straw rack (13) that collects paddy that is released from the rear end of the grain sieve (9).
0), and a second material collection section (14) that collects paddy with branches leaked from (11).

Between the first item collecting section (13) and the second item collecting section (14), there is a support frame (18) which is upwardly facing U-shaped in front view and is bolted to the left and right frames (7). A rubber banner (19) is attached to the horizontal bar (18a) of the support frame (18)
) is installed facing the first item collection section (13), so that the sorting air from the winnow (6) can smoothly reach the lower straw rack (11) along the banner (19). .

As shown in Figures 1 and 3, this threshing device has a handling cylinder (
The angle (
θ) is provided in the handling chamber (1) so as to be changeable and adjustable, and the grain pan (17) of the rocking sorting plate (5) located below the dust outlet (1a) in the handling chamber (1) is It is provided to be movable up and down with respect to the dynamic sorting plate (5), and the angle (θ) is
As the angle (θ) becomes smaller, the grain pan (17) moves upward, and as the angle (θ) increases, the grain pan (17) moves downward.
20) and the grain bread (17) are linked.

The upper handling chamber (21), in which the handling cylinder (2) is mounted, is connected to the lower handling chamber (
22), and then the upper handling room (21).
) The variable induction angle mechanism (D) of the dust feeding valve (20) provided on the inner surface side of the dust feeding valve (20) will be explained. The dust feeding valve (20) includes fixed dust feeding valves (20B) located at the inlet and exit sides of the handling chamber, and a plurality of movable dust feeding valves (2OA) arranged between these fixed dust feeding valves (20B). This consists of a plurality of movable dust valves (2
The threshing product is transferred and guided to the rear by varying the guiding angle (θ) of 0A). As shown in Fig. 1, the movable dust valve (
20A) is formed of an angle material, and its upper end is pivotally supported in the upper handling chamber (21) via a fulcrum shaft (25), and its tip is pivoted via a connecting plate (26). It is connected to another movable dust-feeding valve (20A) so that it can be operated at rest. An outer abutment plate (27) is provided at the insertion portion of the fulcrum shaft (25).
) is fixed to a support boss (not shown), and
A fulcrum shaft (25) is inserted into this support boss.

The movable dust sending valve (2OA) is swing-operated by an opening/closing adjustment lever (23) that is manually operated.

The rear grain pan (17) has left and right frames (7).

These vertical frames (32), (32) are attached to the front and rear guides (33), (33) fixed to the frame body (7). (the guides (33) may be arranged vertically). Then, the rack (34) fixed to the vertical frame (32) is engaged with the fan-shaped pinion (35) pivotally supported by the frame (7), and the arm (
36) and the connecting plate (26) are interlocked and connected by a wire (37).

In other words, when the guiding angle (θ) of the movable dust sending valve (20A) is made small in order to reduce the speed at which the material to be processed in the handling chamber (1) is transported backward, the rear grain pan (17) rises and the transport speed increases. If you increase it to increase the intensity, it will start to fall.

As shown in Fig. 2, the threshing cover (38
), and this cover (38) covers the upper handling chamber (21).
) is configured to be pushed open by the opening operation.

[Another example]

As shown in FIG. 4, the rear grain pan (17) may be configured to swing up and down around the horizontal axis (Y) by means of a wire (37). In this case, when rising, the rear grenpan (
17) The angle of inclination after going up becomes steeper, and becomes gentler as it descends.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing device according to the present invention, FIG. 1 is a diagram showing the interlocking structure between the dust feeding valve and the rear grain pan, FIG. 2 is a front view of the handling chamber, and FIG. 3 is the structure of the threshing device. FIG. 4 is a side view showing another embodiment of the structure for vertically moving the rear grain pan. (1)... Handling room, (2)... Handling cylinder, (
5)...Occillating sorting plate, (17)...Glenpan, (20)...Dust feeding valve, (1a)...
...Dust inlet, (θ)...Angle.

Claims (1)

[Claims] A dust feeding valve (20) that transfers the threshed material to the rear with the rotation of the handling drum (2) is arranged in the handling chamber (1) so that the angle (θ) formed with the rotation direction of the handling drum (2) can be changed and adjusted. ) and move the grain pan (17) of the swinging sorting plate (5) located below the dust outlet (1a) in the handling room (1) up and down with respect to the swinging sorting plate (5). the grain pan (17) moves upward as the angle (θ) becomes smaller, and the grain pan (17) moves downward as the angle (θ) becomes larger; A threshing device in which the dust sending valve (20) and the grain pan (17) are linked.