JPS63164815A - Chaff sieve of threshing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a chaff sieve for a threshing machine, and more particularly to a technique for adjusting processing capacity depending on the amount of material to be processed.

[Conventional technology]

Conventionally, as a technique for adjusting the throughput as described above, for example, each chaff sheave is pivotally supported via a shaft extending in the longitudinal direction, and each chaf sheave is oscillated around the shaft, thereby creating a space between each chaff sheave. There is a structure that changes the size of the gap formed in plan view and adjusts the opening area that allows leakage of the processed material (references not listed).
.

[Problem that the invention seeks to solve]

However, since a large number of chaf sheaves are originally provided, as mentioned above, if each chaf sheave is to be pivotally supported, the precision of the pivot structure must be made uniform to allow for the swinging of the chaf sheaves. The structure tends to be complicated, so there is room for improvement.

In addition, in the threshing equipment mounted on the self-style combine harvester, one side of the chaff sheave is generally smaller than the other side.
Because of the difference in the amount of processed material supplied, there is room for improvement as sufficient processing may not be carried out on one side of the chaff sieve.

An object of the present invention is to construct a chaff sieve with a structure as simple as possible, which can adjust the processing capacity depending on the amount of material to be processed through rational modification, and can process both sides with just the right amount.

[Means for solving problems]

A feature of the present invention is that an elastic material is interposed between both sides of a horizontally long chaff board in which a large number of chaff sheaves are arranged in a substantially parallel state, and that each of the chaff sheaves at both ends of these chaff boards is The mechanism is provided with an adjustment mechanism that independently adjusts the distance between the two sides, and its functions and effects are as follows.

[For production]

If the above characteristics are configured as shown in FIGS. 1 and 2, for example, the electric motors (16), (16) provided on both sides
) are actuated independently by different amounts, the chaff plates (9) on both sides are maintained at approximately equal distances due to the elastic deformation of the elastic members (13). As shown in Figure 1, it is possible to make a difference in the spacing between both sides of the chaff plate (9), and as a result, the gap between the leakage of processed material is reduced on the side where the gap is set wider than on the other side. The area becomes wider, making it possible to sort more items to be processed than on the other side.

In other words, instead of adjusting the sorting ability by swinging the chaff vi (9)..., the chaff plate (9) between unit distances is
), the sorting capacity can be adjusted by changing the opening degree without significantly changing the effective leakage area.
By interposing the chaff plates (9), the intervals between the chaff plates (9) can be maintained at approximately the same distance even when the adjustment mechanism (B) is operated.

In addition, the adjustment mechanism (B) is Rondo (14), Rondo (14)
The gear (15) is screwed into the gear (15), and the gear (15) is made up of an electric motor (16) that rotates.

〔Effect of the invention〕

Therefore, while interposing elastic materials on both sides of the chaff plate,
By providing an adjustment mechanism, a chaff sieve can be constructed with a simple structure that can process just the right amount even when there is too much or too little material to be processed, or even when the processing material is supplied in an uneven state.

〔Example〕

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

As shown in Fig. 3, there is a lower-handling type handling cylinder (2) to which the culms are fed while being held and conveyed by the feed chain (1), and a receiver stretched below the handling cylinder (2). ii (3) A swinging sorting mechanism (A) that receives and stops the processed material leaking and supplied from the receiving net (3) and sorts the processed material by swinging, and the swinging sorting mechanism (A) sorts the processed material A wind blower (4), an Ichiban Screw (5) that collects grains from the oscillating sorting mechanism (A),
The threshing device is composed of a No. 2 screw (6) that collects the No. 2 items from the swing sorting mechanism (A), and a dust exhaust fan (7) that sucks and discharges dust generated during sorting.

Further, the swinging sorting mechanism (^) is driven by the swinging power,
The supplied processed materials are sorted while being sent to the rear, and as shown in the figure, they are sent to the rear! If (3) is mainly supplied to the first grain pan (G1), first chaff sheave (C1), and the opening (3a) of the receiving net (3) formed on the downstream side in the culm supply direction. ), the second grain pan (G2) and the second chaff sieve (C
2), and a rack plate group (R) extending from the upper surface of the second chaf sheave (C2) and from the bottom to the rear of the second chaf sheave (C2),
(R), and a third grain pan (G3) and grain sheave (8) are further formed below the first chaff sheave (Ct).

The first and second chaf sheaves (c+) and (C2) are each configured such that the spacing between the chaff plates (9), (9), etc. can be adjusted independently on both sides.

In other words, as shown in Figures 1 and 2, the swing sorting mechanism (
The horizontal frame (11) is fixed to the frame (10) of A).
), and a large number of chaff plates (9) and... , placed on both sides of these chaff plates (9)...
9)...A large number of elastic members (13) made of rubber bodies are provided to be sandwiched between the elastic members (13).

Also, a horizontal frame (11), a pressing frame (12),
Rods (14), (14) passing through both sides of the chaff plate (9) and the elastic material (13) are provided, and threaded portions (14a) are formed on each of the rods (14), (14). ).

(14a) are provided with gears (15), (15) screwed together, and furthermore, electric motors (16), (16) for rotating the gears (15), (15) are mounted on the horizontal frame (11). installed on.

By independently driving the two electric motors (16) and (16), the chaff plate (
9) It is possible to create a difference in the spacing on both sides of...

Incidentally, in this threshing device, a large amount of processed material is supplied to the right side (upper side in Fig. 1) toward the upper side of the shell culm, so the spacing between the chaff plates on the side where a large amount of processed material is supplied is increased. It is possible to increase the processing capacity by setting.

In addition, in this configuration, if the interval between the chaff plates (9) is set small, a part of the chaff plates (9) will enter the underside of the first and second grain pans (C+) and (Gt). It is also possible to reduce the processing area.

In addition, the rod (14), a gear (15) screwed onto the rod (14), and an electric motor (
16) constitutes an adjustment mechanism (B).

[Another example]

In addition to the above-mentioned embodiments, the present invention may also use a coil spring as the elastic material, adjust the spacing of the chaff plates by adjusting the amount of wire pulling, or be arranged horizontally on the downstream side of the culm feeding direction. A frame or the like may be provided to increase the amount of movement of the chaff plate on the upper side in the culm supply direction.

[Brief explanation of the drawing]

The drawings show an embodiment of a chaff sieve of a threshing device according to the present invention, and FIG. 1 is a partially cutaway plan view showing the structure of the chaff sieve, FIG. 2 is a schematic perspective view showing a swing sorting mechanism, and FIG.
The figure is a schematic side view of the threshing device. (9)... Chaff plate, (13)... Elastic material, (B)... Adjustment mechanism.

Claims (1)

[Claims] Horizontally long chaff boards (9) arranged in large numbers almost in parallel...
An adjustment mechanism that interposes an elastic material (13) between both sides of the chaff plates (9) and independently adjusts the distance between each side of the chaff plates (9) at both disposed ends. (B),
A chaff sieve for a threshing device comprising (B).