JPH0545161Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dust outlet structure formed at the end of the handling chamber of a bottom-handling type threshing sorting device.

[Conventional technology]

In the case of a threshing sorting section equipped with a lower handling type handling cylinder, due to the rotating direction of the handling cylinder, the amount of processed material present on the side opposite to the handling port is greater than the amount of processed material present on the handling port side. The amount of things will be greater. For this reason, conventionally, the waste from the dust exhaust port 4 of the handling chamber is supplied to the handling port side as much as possible to the sorting section, as shown in FIGS. 5 and 6.
As shown in the figure, the dust exhaust port 4 was formed such that the end a of the dust exhaust port 4 on the side opposite to the handling port side was located at a lower level than the rotation axis X of the handling cylinder. That is, the end a of the dust exhaust port 4 on the opposite side from the handling port side was arranged to be as close to the handling port side as possible.

[The problem that the idea aims to solve]

In the above configuration, the straw waste is transferred to the side opposite to the handling port side of the dust outlet 4 by the pushing up action of the handling teeth 2a of the rotating handling cylinder 2, and the straw waste is transferred to the side opposite to the handling port side of the dust exhaust port 4. Since the end a on the opposite side is located at a relatively low level, straw waste is likely to be pressed against the end a and remain stuck.

The purpose of this invention is to suppress as much as possible the increase in the amount of material discharged from the dust exhaust port to the side opposite to the handling port of the sorting section, while at the same time attracting straw waste to the end of the dust exhaust port. The aim is to minimize the amount of damage that occurs.

[Means to solve the problem]

The technical means of the present invention taken to achieve the above-mentioned object is that the material to be processed is discharged from the terminal end of a handling chamber equipped with a lower-handling type handling cylinder to a sorting section below the handling chamber. The dust exhaust port provided in the first dust exhaust port is connected to the first dust exhaust port located below the handling drum including directly below the rotation axis of the handling drum, and to the downstream side of the first dust exhaust port in the rotation direction of the handling drum. and a second dust exhaust port portion, and the width of the second dust exhaust port portion in the direction of the rotation axis of the handling drum is set smaller than the width of the first dust exhaust port portion in the direction of the rotation axis of the handling drum. A stepped portion protruding toward the terminal end of the handling chamber is formed at the connection point between the two dust exhaust ports, and the stepped portion is set to be located at a lower level than the rotational axis of the handling cylinder. The end of the second dust exhaust port portion opposite to the side connected to the first dust exhaust port portion is formed so as to be located at a higher level than the rotation axis of the handling cylinder.

[Effect]

The effects of taking the above technical measures are as follows.

a In other words, by arranging the upper end of the second dust exhaust port, which is the end opposite to the handling port of the handling chamber dust exhaust port, at a higher level than the rotation axis of the handling drum, the handling drum in which straw waste rotates can be Even when pushed up, it is difficult to reach the end.

b The width in the direction of the axis of rotation of the handling cylinder of the second dust exhaust port, which is the dust exhaust port located at a high level, is the first dust exhaust port, which is the dust exhaust port located at a low level. Since the width is smaller than the width in the direction of the rotation axis of the handling cylinder, the amount discharged from the second dust exhaust port portion is smaller than the amount discharged from the first dust exhaust port portion.

c A step protruding toward the end of the handling chamber is formed at the connection point between the wide first dust outlet and the narrow second dust outlet. Therefore, resistance is provided to the movement of the object to be processed relative to the handling cylinder, and movement of the object to be processed beyond the end of the first dust outlet portion toward the second dust outlet portion is suppressed. Therefore, for example, compared to a case where one side edge in the circumferential direction of the dust exhaust port is formed with a straight inclined edge so that the width gradually becomes narrower from the first dust exhaust port part to the second dust exhaust port part. However, by reducing the unnecessary rotation of the workpiece by the handling cylinder,
The amount of dust falling on the side of the dust exhaust port can be increased.

[Effect of idea]

Therefore, the material to be processed is not easily pressed against the end of the handling chamber dust exhaust port opposite to the handling port side.
It is now possible to prevent straw waste from getting stuck on the edge of the dust outlet in the handling room, and the material to be processed can be quickly discharged from the dust outlet in the handling room. Now you can avoid getting stuck.

Furthermore, the amount of discharged from the second dust exhaust port, which is located at a relatively high level and is supplied to the side opposite to the handling port of the sorting section, can be suppressed as much as possible.
The supply of waste dust to the side opposite to the handling port side of the sorting section could be suppressed as much as possible, and sorting could be maintained as efficiently as possible.

〔Example〕

As shown in Fig. 4, a lower-handling type rotary handling cylinder 2 is installed in a handling chamber A equipped with a receiving net 1, and the grain stem head is inserted into the handling chamber A. A feed chain 3 for pinching and conveying is provided on one side of the machine body, and a threshing section is configured to handle and process the harvested grain culms that are sequentially fed, and the objects to be processed are fed falling through the receiving net 1, The sorting section B is equipped with a swing sorting device or the like that sorts the workpieces discharged from the terminal end of the handling chamber A through the dust outlet 4 provided in the receiving net 1 while conveying them backwards. It is provided from the bottom to the rear of chamber A, and constitutes a threshing and sorting device for a combine harvester.

As shown in FIGS. 1 to 3, the dust outlet 4
is formed from a first dust exhaust port portion 4A and a second dust exhaust port portion 4B that continues on the side opposite to the handling port side of the first dust exhaust port portion 4A. The dimensions are set so that the width of the second dust exhaust port portion 4B in the X direction of the rotation axis of the handling drum is smaller than the width of the first dust exhaust port portion 4A in the X direction of the rotation axis of the handling drum, A stepped portion b protruding toward the terminal end of the handling chamber A is formed at the connection point between the two dust exhaust port portions 4A and 4B.

Further, the position of the stepped portion b is set to be located at a lower level than the rotation axis X of the handling barrel, and is connected to the first dust exhaust port portion 4A of the second dust exhaust port portion 4B. the second end so that the end a opposite to the
A dust exhaust port portion 4B is formed, thereby,
Despite the pushing up action by the handling teeth 2a of the rotating handling cylinder 2, it is difficult for the straw waste to go up to the end a, and the amount of material to be processed from the second dust exhaust port 4B is reduced to the level of the first exhaust. The amount is set to be less than the amount discharged from the dust port portion 4A.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the structure of the dust outlet in the handling chamber of the lower-handling type threshing sorting device according to the present invention, and FIG. 1 is a perspective view of the receiving net, FIG. FIG. 4 is a rear view of the barrel and a side view of the threshing sorting device. FIG. 5 is a perspective view showing a conventional example of a receiving net, and FIG. 6 is a side view showing a conventional example of a handling room. 1... Receive net, 2... Handling cylinder, 4... Dust exhaust port, 4A
...First dust exhaust port part, 4B...Second dust exhaust port part,
A... Handling room, B... Sorting section, X... Handling barrel rotation axis.

Claims (1)

[Claims for Utility Model Registration] A receiving net 1 is provided so that the material to be processed is discharged from the terminal end of a handling chamber A equipped with a lower-handling type handling cylinder 2 to a sorting section B below said handling chamber A. A certain dust exhaust port 4 is connected to a first one located below the handling cylinder 2 including directly below the handling cylinder rotation axis X.
It is composed of a dust exhaust port portion 4A and a second dust exhaust port portion 4B that is connected to the lower side of the first dust exhaust port portion 4A in the direction of two rotations of the handling cylinder. The width of the second dust exhaust port portion 4B in the X direction of the rotation axis of the handling cylinder is set smaller than the width in the X direction of the rotation axis of the cylinder, so that a handling chamber A is provided at the connection point between the two dust exhaust port portions 4A and 4B.
A stepped portion b is formed to protrude toward the terminal end of the second dust outlet portion 4B, and the stepped portion b is positioned at a lower level than the handling barrel rotation axis The first dust outlet portion 4A of
A handling chamber dust exhaust port structure of a lower handling type threshing sorting device formed such that the end opposite to the side connected to the handling cylinder is located at a higher level than the handling barrel rotation axis X.