JPH0144043Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a threshing device equipped with a grain culm holding and conveying device that pinches the stock side of the grain culm and sends the granulated part into a handling chamber. .

[Conventional technology]

A threshing device equipped with a grain culm holding and conveying device as described above is equipped with a handling drum having a large number of handling teeth shaped like bent steel wires in a chevron shape on its outer circumferential surface. This handling cylinder is disposed in the handling chamber so that the grain culm conveying direction of the clamping and conveying device is substantially parallel to the grain culm conveying direction, and the granulated portion of the grain culm is conveyed along the lower surface of the handling cylinder. As a result, the handling teeth of the rotating handling cylinder strike the granulation part of the grain culm and at the same time attempt to pull out the granulation part from the grain culm holding and conveying device side.

[The problem that the idea aims to solve]

As mentioned above, if the structure is such that the granulation part of the grain culm is sent along the lower surface of the handling drum in the direction of the rotation axis of the handling cylinder, the range in which the handling cylinder can come into contact with the granulation part of the grain culm is
Since the lower surface of the handling barrel is narrow and limited along the circumferential direction, if a long or short grain culm is fed in, the grain attachment part of the grain culm may come off the lower surface of the handling barrel. There is a risk of unhandled items.

Therefore, there is a method of enlarging the outer diameter of the handling barrel in order to expand the range of contact with the granulation part of the grain culm, but this has the disadvantage of increasing the size of the entire grain culm device.

The present invention focuses on the above-mentioned problem and aims to widen the range in which the handling cylinder can come into contact with the granulation part of the grain culm without particularly increasing the outer diameter of the handling cylinder.

[Means to solve the problem]

The feature of the present invention is that the threshing device is configured as follows. In other words, a rasp bar type handling torso is installed,
Concaves are disposed facing each other along the outer surface of the rasp bar type handling cylinder, and the grain culm holding and conveying device is arranged in such a manner that its grain culm conveying direction is substantially orthogonal to the rotation axis of the rasp bar type handling cylinder, and the grain culm is It is arranged so that it is fed between the rasp bar type handling cylinder and the concave, and its functions and effects are as follows.

[Effect]

The rasp bar has a structure in which a large number of relatively short handling teeth are arranged at an angle with respect to the direction of rotation of the handling cylinder. Therefore, when the grain culm holding and conveying device and the concave are arranged as described above on the rasp bar type handling cylinder with the rasp bar provided on the outside and the rasp bar type handling cylinder is rotated, the rasp bar is tilted with respect to the direction of rotation. The handling teeth strike the granulation part of the grain culm, and at the same time try to pull out the granulation part from the grain culm holding and conveying device side by a component force in the direction of the rotational shaft. In this way, even if the rasp bar type handling cylinder has its rotational axis substantially perpendicular to the grain culm conveyance direction, the same threshing effect as in the conventional handling cylinder arrangement can be obtained.

Therefore, with the structure of the present invention, the range in which the granulated portion of the grain culm can come into contact with the rasp bar type handling cylinder extends over a wide range in the direction of the rotation axis on the outer surface of the rasp bar type handling cylinder. This results in
There is no need to increase the outer diameter of the rasp bar type handling cylinder.

[Effect of idea]

As described above, in order to achieve the purpose of expanding the range in which the grain-bearing part of the grain culm can come into contact with the handling cylinder, there is no need to increase the outer diameter of the handling cylinder, and the overall size of the threshing device can be suppressed. However, we were able to reduce the amount of unhandled grain and increase the efficiency of grain collection.

In addition, in the conventional structure, the handling teeth enter from the stock side of the granulation part of the grain culm and exit from the tip of the granulation part, which increases the distance for each handling tooth to contact the grain culm, and removes straw waste. However, in the present invention, since the distance that one handling tooth of the rasp bar contacts the grain culm is small, the generation of straw waste is also reduced.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

A handling chamber A is provided in which the rasp bar type handling cylinder 1 is housed, and the concave 2 forming the lower wall of the handling chamber A is composed of a mesh body 2A, and a feed chain as a grain culm holding and conveying device 3 is provided. , the state in which the culm is oriented in the direction of the rotation axis of the handling cylinder, that is, the grain culm conveying direction of the feed chain 3 and the rasp bar type handling cylinder 1.
It is provided so that the granulation part of the grain culm is moved toward the downstream side of the handling cylinder through between the rasp bar type handling cylinder 1 and the concave 2 facing therein, with the rotational support shaft 10 being substantially orthogonal to each other. Then, the processed material discharged from the concave 2 and the waste straw together with the waste straw is discharged outside the handling room A and is transported to the grain culm conveying direction of the feed chain 3 while being transported to the feed chain 3 for leakage sorting. A dynamic sorting board 4 and a winnower 5 for blowing sorting air toward the oscillating sorting board 4 are provided, respectively, so that grains are placed in the first mouth 6 and second items such as branch straw with grains are placed in the second part. The structure is such that the straw waste is collected into a dust port 7 and discharged through a rear dust exhaust port 8, and fine straw waste is sucked and discharged out of the apparatus by a cross-flow fan 9.

To construct the rasp bar type handling barrel 1, disk-shaped members 11a, 11b, and 11c are externally fitted onto the starting end, middle end, and end end of the rotational support shaft 10, respectively, and the rasp bar 13 is attached to the outside of the disc-shaped members 11a, 11b, and 11c. A plurality of band plate members 12 are arranged at appropriate intervals in the circumferential direction and are bolted to the circumferential portion of each disc member 11a. A so-called rasp bar 13 whose surface is formed into a file shape and has handling teeth 13A arranged side by side is attached to a portion of the strip member 12 excluding the starting end side portion. Moreover, the disk-shaped member 11a
The disc-shaped member 11a on the starting end side is made smaller in diameter than the other disc-shaped members 11b and 11c, and the starting end side portion of the strip-shaped member 12 is bent inward to facilitate handling. It is designed to prevent the starting end side of the handling cylinder from cutting and damaging the granulated part of the grain culm inserted into the chamber A. Furthermore, each disc-shaped member 11a...
The portions located between the adjacent strip members 12 are formed in a recessed state to allow the granulation portion of the grain culm to easily move freely and to suppress damage.

The feed chain 3 is installed at an angle so that the terminal end is located higher, and the height of the terminal end of the concave 2 is made higher than the height of the starting end, so that the material to be handled is not accidentally disposed of from the terminal end of the concave 2. It is designed to be difficult to discharge.

In carrying out this invention, Concave 2 is as follows:
As shown in FIG. 3, a concave bar 2B arranged in parallel along the direction of the rotation axis of the handling cylinder can be used.

The threshing device of the present invention can be used by being mounted on various agricultural machines such as combines and harvesters.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing device according to the present invention,
FIG. 1 is an overall vertical sectional side view, FIG. 2 is a cutaway front view of a handling chamber portion, and FIG. 3 is a cutaway side view of another embodiment. 1... Rasp bar type handling torso, 2... Concave,
2A... Reticular body, 2B... Concave bar, 3...
...Grain culm holding and conveying device, 10...Rotation shaft of rasp bar type handling cylinder.

Claims (1)

[Claims for Utility Model Registration] 1. A rasp bar type handling cylinder 1 is provided, concave 2 is arranged oppositely along the outer surface of the rasp bar type handling cylinder 1, and the grain culm holding and conveying device 3 is arranged so that its grain culm conveying direction is This threshing device is arranged in a state substantially orthogonal to a rotational support shaft 10 of a rasp bar type handling cylinder 1 and so that grain culms are fed between the rasp bar type handling cylinder 1 and a concave 2. 2 The concave 2 is composed of a mesh body 2A.
A threshing device according to claim 1 of the utility model registration claim. 3. The threshing device according to claim 1, wherein the concave 2 includes concave bars 2B arranged in parallel along the axis of rotation of the handling cylinder.