JPS61195618A - 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] [Industrial Application Field] The present invention relates to a threshing device mounted on a combine harvester or a harvester, and more specifically, the present invention relates to a threshing device mounted on a combine harvester or a harvester. This invention relates to a threshing device equipped with a receiving net for sorting out grains.

[Conventional technology]

Such a threshing device uses a handling cylinder to comb the husk culms that are sequentially supplied into a handling chamber that stores the husk, and the husk culms slide against each other and rub each other to form grains into single grains. , the single grains are dropped and supplied to the sorting section through the receiving net.

In addition, the sorting section has a specific gravity sorting effect and a wind sorting effect,
The grains are collected at the first port, and the second grains, which are returned to the handling room, are collected at the second port.

By the way, in the past, the size of the mesh of the receiving net was made to be the same over the entire width from the starting end to the terminal end. Incidentally, it goes without saying that the size of the receiving net must be large enough to prevent branch grains and straw waste from accidentally leaking out.

[Problem that the invention seeks to solve]

However, according to the above-mentioned conventional means, when the amount of husk supplied is large, a large amount of single grain cannot be quickly discharged through the receiving net, resulting in the disadvantage of overloading the handling cylinder and the handling efficiency. There was a disadvantage that it could not be improved, and there was room for improvement.

To be more specific, when the amount of shell culms supplied is large, the above-mentioned sliding contact and rubbing effect of the shell culms is sufficiently exerted, and at a location corresponding to the starting end side of the receiving net,
Therefore, the grains are sufficiently made into single grains, and when the amount of husk supply is large, it is necessary to quickly discharge a large amount of the single grains, but this is not the case as described in the above conventional means. Since the size of the receiving net is set as shown in the figure, it was not possible to quickly discharge a large amount of single grains.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to suppress the leakage and discharge of grains that are not single-grained through the receiving net when the amount of husk supply is small. ,
When the amount of shell culm supplied is large, the single grains are quickly leaked out through the receiving net.

[Means for solving problems]

The characteristic configuration of the present invention is that the terminal side portion of the receiving net disposed below the handling barrel is configured so that the mesh can be changed and adjusted, and a means for detecting the threshing load is provided, and when the threshing load is large, The present invention is characterized in that means is provided for automatically operating the terminal end portion of the receiving net based on the threshing load detection information so that the mesh is made larger when the time is smaller than when the time is smaller, and the operation and effect thereof are as follows. It is as follows.

[For production]

In other words, the processed materials containing straw waste, branch grains, and single grains that flow around the outer periphery of the handling drum as the handling drum rotates are made into single grains due to the difference in specific gravity. The grains will be located on the outermost side, and as a result, if there are a large number of single grains in the processed material, even if the mesh of the receiving net is set large, the receiving net will be It is difficult for branch grains and straw waste to leak through the net.

Therefore, in this case, when the amount of shell culm supplied is large and the threshing load is large, the mesh at the terminal end of the receiving net is enlarged, and the single grains are removed at the point corresponding to the starting end of the receiving net. When the culm supply amount is low and the threshing load is small, the mesh at the end of the receiving net is made smaller to prevent grains that are not single-grained from leaking through the receiving net. This prevents it from being emitted.

〔Effect of the invention〕

Therefore, when the amount of husk supply is small and the threshing load is small,
While accurately suppressing grains from leaking out through the receiving net without being made into single grains, when the amount of husk supply is large and the threshing load is large, the grain is made into single grains at the end of the receiving net. The large amount of grains that have been removed can be quickly leaked out at the end of the receiving net, reducing the load on the handling barrel, thereby reducing the amount of husk supply per unit time while suppressing overload on the handling barrel. By increasing the amount of threshing, it is possible to improve handling efficiency, and as a result, a threshing device that can be used more conveniently has been obtained.

〔Example〕

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

Figure 1 shows a threshing device mounted on a combine harvester, in which a rotating handling cylinder (2) is provided in a handling chamber (^) equipped with a receiving net (1) forming the lower wall, and a part for handling the tip of the husk. A feed chain (3) is provided which clamps and conveys the base of the husks while being inserted into the chamber (8), and is configured to handle and process the cut culms that are sequentially supplied. A wandering straw chain (4) that supplies the waste straw to a waste straw processing device such as a shredding cutter or a bundling device is provided so as to be conveyed along the horizontal direction, so that the upper wall (5) of the threshing device is on a horizontal plane. It is constructed so as to have a flat plate shape.

The treated material falling through the receiving net (1) and a discharge port (6) opened at the lower part of the terminal side of the handling chamber (A).
A swinging sorting board (7) that separates the waste while conveying it backwards, and a winnow (8) that blows sorting air to the material that falls from the swinging plate (7).
), and a cross-flow fan (9) for dust removal is provided above the terminal end of the oscillating sorting plate (7).
The grains are collected into the first port (10) and the second material such as branch grains are collected into the second port (11), and the straw waste is sent out of the device by the swinging sorting plate (7). drain and further,
It is configured so that dust such as fine straw waste is sucked and discharged out of the device by a cross-flow fan (9).

In addition, (12) in the figure is an auger for carrying out grains, and (13) is
2. This is an auger for transporting spices.

To be more specific about the receiver M4 (1), as shown in FIG. The formed first receiving net (la) is provided, and the first receiving net 14 (la) is provided.
) is located below the coarse mesh of the second receiving net (1
b), thereby connecting the first receiving net (1a) and the second receiving net (1a).
(lb) overlap, the first receiving net (1a) is configured so that the size of the mesh is uniform from the starting end to the ending end.

Then, as shown in FIG. 2, the two receiving networks (Ia),
(lb) below the handling cylinder (2), the first
Both ends of the receiving net (la) are connected to the left and right side walls (14) of the handling room (A).
) and (15), one end of the second receiving net (1b) is attached to the left wall (14) so as to be able to swing vertically, and the other end is connected to the forward/reverse motor (16). A screw member (18) is screwed onto a screw shaft (17) which can be freely rotated by
) is attached to the right side wall (15) of the handling room (A), and the threaded member (18) is rotated along the threaded shaft (17) by the rotation of the threaded shaft (17) by the motor (16). Slide the receiving net (111il (lb)) as it moves up and down.
1) The size of the mesh at the terminal end can be changed.

In order to move the second receiving net (1b) up and down, the handling cylinder (2)
The vertical movement is performed based on load detection of the handling cylinder (2) by a torque sensor (19) attached to the cylinder, and its operation will be explained based on FIG.

The detected values of the torque sensor (19) are input to the rise and fall discrimination circuits (20) and (21), and these values are compared and discriminated with a pre-stored reference value, and the discrimination results are used as the motor drive corrector. The motor (15) is rotated in the forward and reverse directions by inputting to the rotation operation circuit (22) or the reverse operation circuit (23) to move the second receiver W4 (1b) up and down.

In short, the motor (1
5) is automatically operated in forward and reverse directions.

[Another example]

The threshing device of the present invention may be used not only by being mounted on a combine harvester but also by being mounted on a harvester or the like.

In the above embodiment, the mesh size of the receiving net (1) is changed by moving the second receiving net (lb), which has a different mesh size, up and down with respect to the first receiving net (1a). However, as shown in Figure 5, when stacked on the first receiver 1FM (la),
By rotating the pinion (31) that engages with the rank (30) provided on the lower surface of the second receiver net (1b) by the motor (32), and sliding the second receiver 1i1 (lb) back and forth in parallel, The size of the mesh may be changed and adjusted. Furthermore, the mesh size of the terminal end portion of the fertilization (1) may be changed in multiple stages of three or more stages, or in a stepless manner.

Further, in the above embodiment, the threshing load of the handling drum (2) is determined based on the detection result of the rotational torque of the handling drum (2) by the torque sensor (19), but instead of this, the second Threshing load detection may be determined based on the detection result of the amount of return or the detection result of a sensor that detects the amount of husk supplied to the handling room (8).

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing device according to the present invention, and FIG. 1 is a vertical side view of the threshing device, FIG. 2 is a vertical front view of the threshing device, FIG. 3 is a perspective view of the receiving net, and FIG. 4 is a vertical sectional side view of the threshing device. It is a control block diagram. FIG. 5 is a side view showing another embodiment of the operating state of the receiving network. (1)......Receiving net, (2)...... Handling cylinder.

Claims (1)

[Claims] The terminal side portion of the receiving net (1) disposed below the handling cylinder (2) is configured so that the mesh can be changed and adjusted,
A means for detecting a threshing load is provided, and the mesh is made larger when the threshing load is large than when it is small,
A threshing device comprising means for automatically operating the terminal end portion of the receiving net based on threshing load detection information.