JPS6444Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved technology for the threshing drum of a threshing machine, and improves the threshing performance by driving the threshing drum in a completely new form, and further improves the threshing performance. The purpose is to improve threshing efficiency.

First, an embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a combine harvester equipped with a threshing machine according to the present invention.
A threshing machine 5 is mounted on the traveling body 1 with the reaping machine 2 and the control section 3 arranged side by side on the left and right, and the feed chain 4 is positioned on the side of the reaping machine 2. A self-propelled, self-eliminating type combine harvester is constructed by connecting the waste straw processing machine 6.

As shown in FIG. 2, the threshing machine 5 has a handling barrel shaft 8 installed across an inlet side plate 7a and an outlet side plate 7b of the threshing machine body 7 so as to be rotatable only.
A partially splined shaft 8a is formed on the outlet side plate 7b of the handling cylinder shaft 8, and a hollow threshing cylinder 9 is connected to the handling cylinder shaft 8, and one boss 10 thereof is connected to the splined shaft 8a. The input pulley 11 is fixedly mounted on the handling drum shaft 8, and the input pulley 11 is fixedly mounted on the handling drum shaft 8.
As the handling cylinder 9 rotates due to the rotation of the handling cylinder 9, the handling cylinder 9
A cam mechanism 12 that reciprocates in the rotational axis direction P.
is provided.

Furthermore, a crimp net 1 is placed around the lower part of the handling cylinder 9.
At the same time, a swinging sorting device 14 is arranged from the bottom to the rear of the crimp net 13, and on the lower side of the sorting device 14, a winnowing machine 15 and a screw 16 for collecting the first and second items are placed. , 17 are arranged.

Next, to specifically explain an example of the cam mechanism 12, as shown in FIG. Annular cam groove 1
8, and a box-shaped bracket 19 is provided on the inner surface of the outlet side plate 7b, and this bracket 19 has a shaft provided with a roller 20 that is rotatable around an axis perpendicular to the axis of the handling cylinder shaft 8. Attach 21,
and fitting the roller 20 into the cam groove 18,
Accordingly, the handling cylinder 9 is configured to reciprocate in the rotational axis direction P by an amount of deviation l of the cam groove 18 as the handling cylinder 9 is driven once.

According to the above configuration, the grain stems transported by the feed chain 4 are repeatedly deflected in the axial direction P as the handling teeth a rotate while being subjected to the transport action. For easier understanding, FIG. 4 shows a state in which the feed chain 4 is stopped and only the handling cylinder 9 is rotated. As is clear from this drawing, the tip side of the grain culm is subjected to the straining action of the handling teeth a, and repeats a state in which the tip lags and a state in which the tip leads, and in addition, the tip is conveyed by the feed chain 4. As a result of the added action, the deflection of the tip is greatly increased compared to the conventional simple rotation of the handling barrel, and the number of times of contact with the handling teeth a increases accordingly, improving grain shedding performance.

Note that the specific structure of the cam mechanism 12 can be changed into various forms.

As explained above, the thresher according to the present invention is characterized in that the threshing drum is reciprocated in the direction of its rotational axis via a cam mechanism as the threshing drum rotates. According to this characteristic configuration,
As a result of the grain culm tip side being repeatedly deflected in the direction of the rotational axis of the handling cylinder while being conveyed by the feed chain, the number of times the grain culm tip side contacts the handling teeth increases.
As a result, the threshing performance can be greatly improved compared to the conventional structure in which the handling cylinder is simply rotated, and as a result, the threshing efficiency has been greatly improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of a combine equipped with a threshing machine according to the invention, Fig. 2 is a cross-sectional view of the handling barrel and its shaft support, and Fig. 3 is a development of the annular cam. FIG. 4 is an explanatory diagram showing the deviation state of the grain culm tip side. 9... Threshing cylinder, 12... Cam mechanism, P... Rotation axis direction.

Claims (1)

[Scope of utility model registration request] A threshing machine characterized in that a threshing drum 9 is configured to reciprocate in the rotational axis direction P of the threshing drum 9 via a cam mechanism 12 as the threshing drum 9 rotates.