JPS59143523A - 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 The present invention relates to a structure of a stationary or combine harvester for threshing.
A swinging sorting mechanism 2 is installed in a sorting chamber formed to face in the axial direction of the handling cylinder 9 (
When a cross-flow suction fan is provided at right angles to the cross-flow suction fan, by forming the diameter of the left or right side in the longitudinal direction of the cross-flow suction fan to be larger than the diameter of the midway part in the longitudinal direction,
The purpose is to improve the sorting performance by ensuring that the air volume distribution of the sorting air is not insufficient at necessary points in the width direction of the sorting chamber.

Next, the present invention will be explained based on an example. In the figure,
(1) is the machine frame of the threshing device, a foot chain (2) is installed along the upper part of the - side of the machine frame (1), and a handling room (3) installed inside the machine frame (1) is A bottom-handling type handling cylinder (5) with a rotating shaft (4) horizontally disposed substantially parallel to the feeding direction of the foot chain (2) is built-in. In the machine frame (1), a sorting chamber (6) is provided below the handling chamber (3) and is elongated in the axial direction of the handling barrel (5).

A handling net (7) is stretched at the lower part of the handling chamber (3) along the outer periphery of the lower part of the handling barrel (5).

(8) is a swinging sorting mechanism installed in the sorting room (6), and the mechanism (8) consists of a perforated plate (9) and a perforated plate (9) located directly below the handling net (7). A stroke rack 00% stroke rack 00% that slopes rearward upward following the nodal line 01) extending rearward from the rear end, a grain board (121 and the perforated plate tilted below the nodal line 01J) (9) A sorting net 03) located at a lower position, and is configured to swing back and forth at 1j ink 0.4).

0 yen is 1) below the sorting net 0 [with] of the oscillating sorting mechanism (8)
11 Screw conveyor 0 extending perpendicularly to the handling cylinder (f) axis
The first grain receiving trough with 6), 0''f) is the second grain receiving trough provided at the bottom of the straw rack 0o) and the grain flow plate α.

In addition, at the bottom of the oscillating sorting mechanism (8), the first grain receiving trough 0
3-1) A pressure fan 08) is provided on the u side, and the air discharged from the pressure fan 08) is directed toward the left and right side walls (6a) of the sorting chamber (6).
) (6b) in the axial direction of the handling cylinder (5), sorting net 03 perforated plate (9), stroke rack (]0
) and the node line (l]) and are discharged from the dust outlet of the air passage (19) to the outside of the machine.

The wing is a cross-flow suction fan installed in the air passage (19) at the upper rear end of the oscillating sorter 1 (8), and the rotation axis (21) line of the cross-flow fan (a) The blade plates of the cross-flow fan I20 are arranged substantially horizontally so as to extend perpendicularly to the left and right side plates (6a) and (6b) of the chamber (6), in other words, to extend perpendicularly to the lines 1I1 and 1I1 of the handling barrel (5). (A) extends along the rotation axis (2]) line, and both ends thereof are connected to the rotation axis 1.
2]) Attach to a disc-shaped arm (a) (c) that protrudes from the base. The diameter of the cross-flow fan (a) is formed so that it has a large diameter at the side near one or both of the left and right side plates (6a) and (6b) of the sorting chamber (6), and a small diameter at the middle part. It is something. For example, in the case of the lower type shown in Fig. 3, the foot chain (
2) Handling cylinder on the opposite side from the installation side (5) Lower peripheral surface - side part (b)
Degraining is concentrated in the area, and there is a lot of leakage from there, so
In order to increase the air volume at the rear along the left side plate (6a) of the sorting chamber near the side (5), the left side plate (6a) is ) The diameter of the adjacent portions is increased (see Figure 2).

On the other hand, in the case of the top-handling type, contrary to the above, more leakage occurs near the right side plate (6a) in the sorting chamber (6), so the diameter of the cross-flow fan behind it is increased (Fig. (not shown).

In addition, the left and right side plates (6a) (6b) in the sorting room (6)
From the general knowledge of fluid engineering, the wind speed distribution in the "1" direction between the center and the left and right side plates a)
It becomes smaller as it approaches the (6b) direction, and the left and right side plates (
It becomes zero at points 6a) and (6b). In view of this fact, the diameters of both the left and right ends along the axial direction of the cross-flow fan (A) are set to a predetermined air volume at each of the diameters of the cross-flow fan (a), rather than just one side as in the previous embodiment. It may be formed to have a large diameter and a small diameter in the middle.

In this configuration, the grain culms conveyed from the reaping section of the combine by the foot chain (2) enter the handling chamber (3) through the handling bundle supply port while the root part thereof is held between the shafts and the handle, In the case of lower grade grains, they are removed by the handling trunk (5) and the dismounted horse sawer, leak through the handling net (7), and are sorted by the perforated plate (9) and other oscillating sorting mechanisms (8). The grains fall into the first grain receiving trough 0, from which they can be taken out of the machine via a grain lifting cylinder (not shown) or the like. On the other hand, stroke rack 0
0 sieve line 0]), etc., the sorting is not carried out due to the wind blowing from the oscillating and pressure fan 08) to the cross-flow suction fan pan, and the particles that fall into the second grain receiving gutter (17+) are collected in the handling room (3). and reprocess it.

At this time, the threshing grains that have been dropped by the handling cylinder (5) and descending from the handling net (7) are affected by the rotation of the handling cylinder (5) and are blown forward in the tangential direction of the rotation. 2) and the opposite side α ■, where the density of the leaking degraining becomes high.

In this case, according to the present invention, if the diameter of the cross-flow suction fan behind the high-density area is increased, the required separation air volume at the high-density area can be increased compared to other areas, and the sorting performance can be improved. .

In addition, it is possible to eliminate the conventional phenomenon in which the sorting air velocity distribution changes drastically near the left and right side panels of the sorting chamber, and the oscillating sorting mechanism 11.
The effect of being able to exhibit a predetermined sorting ability uniformly over the direction has been demonstrated.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a vertical front view of the threshing device, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a sectional view taken along the line lll-In in FIG. 1. It is. (1)...Machine frame, (2)...Feet chain, (3
)... Handling room h (5)... Handling cylinder, (6)... Sorting room, (6a) (6b)... Left and right side plates, (8)... Rocking sorting mechanism, (a) ...Cross-flow suction fan, (a)...
- Wing plate. Patent applicant: Yanmar Agricultural Machinery Co., Ltd. Agent: Patent Attorney Akio Ii Figure 3

Claims (1)

[Claims] (1) The nine machines are equipped with a T-type handling room, a sorting room with a built-in top-handling type or bottom-handling type handling barrel, a swinging sorting mechanism, a pressure fan, and a cross-flow suction fan. The left and right side plates of the sorting chamber are arranged approximately parallel to the ll1l line of the handling cylinder, and a cross-flow suction fan is arranged between the left and right side plates at the upper rear end of the sorting mechanism so that its axis is perpendicular to the left and right side plates. A threshing device characterized in that the diameter of one end or the opposite end of the cross-flow suction fan is larger than the diameter of the middle part.