JPH03254609A - Rocking and selecting mechanism of thresher - Google Patents

Abstract

PURPOSE:To improve recovery ratio of unhulled rice in a grain sieve by reciprocatingly rocking a rocking and selecting plate in the longitudinal direction and driving the grain sieve in a motion state different from the rocking state of the rocking and selecting plate. CONSTITUTION:A grain sieve 9 is driven to move differently from a rocking and selecting plate 5 having a grain pan 8 and the grain sieve is operated in a state suitable for selecting treated materials separated by specific gravity whereas the rocking and selecting plate rocks in the longitudinal direction in order to mainly transport the treated materials backward.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a oscillating sorting structure for a threshing machine, and more specifically, the present invention relates to a oscillating sorting structure for a threshing machine, and more specifically, it uses a oscillating sorting plate to remove processed material leaking from a receiving net below a handling barrel. This invention relates to a rocking sorting structure for a threshing machine in which a grain pan performs specific gravity difference sorting and a grain sieve installed below the rear of the grain pan performs leakage sorting.

[Conventional technology]

In the above-mentioned threshing machine, as shown in, for example, Japanese Utility Model Application No. 1-130631, both the grain pan and the grain sheave are integrally attached to a rocking sorting plate. It was configured to move in the same way as the sorting board.

[Problem to be solved by the invention]

The oscillating sorting plate is a device that is driven to oscillate to sort the processed material into parts that should be collected and parts that should be discharged.For example, in Glenpan, paddy is placed in the lower layer and straw waste is sorted by specific gravity difference. The grain sieve has the function of separating the upper layer and conveying this treated layer to the rear, while the grain sieve allows the lower layer of paddy sent from the grain pan to leak out and removes the straw waste from the upper layer. It has a different function from Glenpan, which is transport to the rear.

However, in the past, both the grain pan and the grain sieve oscillated together with the oscillating sorting plate, regardless of the above-mentioned differences in function, so it was difficult to set the oscillation conditions of the grain pan and grain sieve to a state suitable for each. For example, if the rocking speed is increased as the amount of processed material increases, the processed material on the grain sieve may be transported to the rear without leaking out, resulting in an inconvenience. There was room for.

The purpose of the present invention is to further improve the efficiency of collecting paddy.

[Means to solve the problem]

The present invention is designed to sort the processed material leaking from the receiving net below the handling barrel using a grain pan with a swinging sorting plate, and also to sort out leakage with a grain sieve installed at the lower rear of the grain pan. In the oscillating sorting structure of the threshing machine,
The apparatus is characterized in that it is provided with means capable of reciprocally swinging the swinging sorting plate in the front-rear direction and driving the grain sieve to a state of movement different from the swinging state of the swinging sorting board. be.

[For production]

According to the above configuration, it becomes possible to drive the grain sieve, which ultimately sorts the paddy from the processed material, in a different motion from the swinging sorting plate that includes the grain sieve. The grain sieve can be moved in a state suitable for leakage sorting of the processed material that has been sorted by specific gravity difference in contrast to the swinging sorting plate that swings back and forth in order to convey it to the grain sieve.

〔Effect of the invention〕

Therefore, it was possible to provide a high-performance threshing machine that further improves the efficiency of collecting paddy in grain sieves.

〔Example〕

The present invention will be explained in detail below.

As shown in FIG. 1, the thresher includes a threshing section (A), a sorting section (B), a collecting section (C), and a second initial velocity 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 is held and conveyed by the chain (4), is handled and processed by the handling cylinder (2),
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) is provided with a grain pan (8) and a grain sieve (9) on both sides of a frame body (7) which can be freely oscillated, as well as a front and rear straw rack (19) and a grain sieve (9). Upper and lower rear straw racks (10), (11)
are provided in the front and rear, and are configured to swing back and forth in the front and back direction by a guide mechanism (15) at the front and a swing drive mechanism (16) at the rear. Then, the treated material leaking from the receiving net (3) is caught by the grain pan (8), and is oscillatedly transferred to the rear grain sieve (9) while being sorted by specific gravity difference.
) to screen out leakage while swinging it backwards and releasing it from the rear end. On the other hand, the waste discharged from the dust inlet (la) of the handling room (1) is stopped by the upper straw rack (lO), and is oscillated rearward while being screened for leakage, and is sent to the lower straw rack. Discharge to the rack (11) and the lower straw rack (1
In step 1), leakage is screened again and discharged from the rear end of the machine. still,
(12) is a dust exhaust fan for discharging straw waste to the outside of the machine along with the sorting air.

In addition, the handling teeth (17) of the handling barrel (2) at the dust feeding port (la) are made higher than other handling teeth (18) in order to reduce the amount of unfinished paddy and unhandled rice.

The collection section (C) includes a top collection section (13) that collects paddy that has leaked from the grain sieve (9), and a straw rack (10) that collects paddy that is released from the rear end of the grain sieve (9).
), and a second and first collection section (14) that collects paddy with branches that leaks from (11). -Fragrance recovery department (1
3) is provided with a first screw (13a) for transporting the first collected item to the side, and the second first collecting part (14) is provided with a first screw (13a) for transporting the second collected item to the side. It is configured by providing a No. 2 screw (14a) for conveying to the − side.

Next, the structure of Glensieve (9) will be explained.

As shown in Figures 1 to 3, the Glensieve (9) has a total of four rollers (20) arranged horizontally on the left and right sides of its front and rear ends, and between the left and right frames (7), (7). The drive means (21) is configured to be movable left and right along the front and rear guide rails (21), (21) installed in
D), the grain sheave (9) is driven to swing back and forth from side to side with respect to the swinging sorting plate (5) within a predetermined range.

In other words, the Glensieve (9) is the oscillating drive mechanism (16).
and the driving means (D), it swings back and forth together with the swing sorting plate (5) and also swings in the left and right directions.

[Another example]

In this embodiment, the grain sieve (9) is moved integrally with the oscillating sorting plate (5) while also adding another movement, but the grain sieve (9) is moved independently of the oscillating sorting plate (5). Collectively, these are defined as providing a means (D) capable of driving the grain sieve (9) to a motion state different from the rocking state of the rocking sorting plate (5).

Incidentally, although reference numerals are written in the claims section for convenience of reference to the drawings, the present invention is not limited to the structure shown in the accompanying drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the swing sorting structure for a threshing machine according to the present invention; FIG. 1 is an overall side view, FIG. 2 is a plan view of a grain sheave, and FIG. 3 is a main part view showing a driving means. (2)... Handling cylinder, (3)... Receiving net, (
5)...Occillating sorting plate, (8)...Glenpan, (9)...Glensieve, (D)...
...Driving means.

Claims (1)

[Claims] The processed material leaking from the receiving net (3) below the handling barrel (2) is sorted by the grain pan (8) of the oscillating sorting plate (5) based on the difference in specific gravity, and is also This is a rocking sorting structure for a threshing machine in which leakage sorting is carried out using a grain sieve (9) provided, in which the rocking sorting plate (5) is driven to reciprocate in the front and back direction, and the grain sieve (9) ) A rocking sorting structure for a thresher, comprising means (D) capable of driving the rocking sorting plate (5) to a motion state different from the rocking state of the rocking sorting plate (5).