JPH0214355Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention aims to improve the sorting performance of the threshing section installed in a combine harvester, and in particular, to minimize the loss discharged from the third spout. In order to achieve this, an orthogonal processing cylinder is provided at the rear lower part of the oscillating sorting device.

(b) Prior art As a prior art, the orthogonal processing cylinder was developed in 1983.
Techniques such as those disclosed in Japanese Patent No. 77847 and Japanese Utility Model Application No. 52-143363 were considered to be publicly known.

However, the orthogonal processing cylinders in these conventional techniques rotate in a counterclockwise direction, and this rotation immediately guides the processed material in the direction of discharging it to the third port. It was impossible to process it.

(c) Problems to be solved by the invention On the other hand, the orthogonal processing cylinder of the present invention does not rotate counterclockwise as in the conventional case to rapidly deliver the processed material to the third outlet. The orthogonal processing cylinder is rotated in a clockwise direction so that the processing material is processed for as long as possible in the orthogonal processing cylinder, and the processing material is rotated in a direction that returns the processed material to the inside of the threshing device.

In such rotation of the orthogonal processing cylinder, the processing chamber rotation plate and the processing chamber rotating plate are designed so that the reprocessed material processed inside is not forcibly guided to the swinging sorting device or the suction duct and deteriorating the sorting performance. The arrangement of the grain plates was determined.

That is, placing the orthogonal processing cylinder horizontally near the swing sorting device or wind sorting device and rotating it in a clockwise direction disturbs the sorting air of the wind sorting device and forces the fine particles to the suction fan. The structure is designed to prevent this wind turbulence from occurring.

(d) Means for solving the problem The purpose of the present invention is as described above, and the configuration for achieving the purpose will be explained below.

An orthogonal processing cylinder 3 that is orthogonal to the processing cylinder 1 is provided at the lower rear of the oscillating sorting device 7, and a suction duct 18 is arranged at the rear of the upper part of the orthogonal processing cylinder 3, and the orthogonal processing cylinder 3 rotates in a clockwise direction. Then, the concave 23 provided below is opened above the second conveyor 9,
At the front of the concave 23, a processing chamber rotating plate 20 on which the feeding plate 12 is arranged at an angle is arranged parallel to the second grain plate 27, and the first grain plate is connected to the upper end of the second grain plate 27. The upper end of the processing chamber rotating plate 20 is disposed below the extension line of the processing chamber rotating plate 24.

(E) Embodiments and operations The purpose and structure of the present invention are as described above. Next, the structure and operations of the embodiments will be explained based on the attached drawings.

Figure 1 is a perspective view of the sorting device of the present invention, Figure 2 is a side sectional view, Figure 3 is an enlarged side sectional view of the vicinity of the orthogonal processing cylinder, Figure 4 is a rear sectional view, and Figure 5 is a rear sectional view.
The figure is a plan view of the vicinity of the orthogonal processing cylinder, and FIG. 6 is a rear view.

First, to explain the overall structure, the grain culm is raised by the pulling device of the combine harvester and transported by the reaping and transporting device.
The stock head section passes through the handling chamber 26 while being held by the feed chain.

At this time, the ears come in contact with the handling teeth 1a of the handling chamber 1 and are shed, and the fine grains fall from the crimp net 5 onto the sorting plate 7a of the swinging sorting device 7.

In addition, grains mixed with straw, chaff, etc. fall slowly from the crimp net and are placed on the straw rack 7b.

The fine grains falling from the stroke rack 7b and the fine grains sent from the sorting plate 7a pass through the sorting net or the sorting stroke rack 7c, and enter the first conveyor 8 from the first grain plate 24.

The first conveyor 8 is connected to a grain frying conveyor, and fine grains are sent to a grain tank. In addition, the waste straw and the chaff and grains attached to it are transferred to the straw removal conveyor via the straw removal guide plate 32 from the 4th port A, and the straw waste and chaff that have fallen at the 4th port A are transferred to the oscillating sorting device 7.
It falls onto the stroke rack 7b and the sieve wire 10.

Conventionally, the straw waste and chaff sent from the oscillating sorting device 7 to the sieving line 10 were discharged from the machine through the third port as they were, except for those that fell onto the second conveyor section 9. The idea is to provide an orthogonal processing cylinder 3 at the tip of this sieve wire 10 and above the second conveyor, and handle the straw waste and chaff coming out from the third opening.
It is being processed again.

When the grains are separated from straw waste, chaff, etc. by this process, they fall from the concave 23 of the orthogonal processing cylinder 3 and enter the second conveyor 9.

The second conveyor 9 was about to fall onto the first conveyor 8 and was blown away by the wind from the sorting fan 6.
The second grains entering the second flow grain plate 27 from the end of the first flow grain plate 24 and the second grains falling onto the second flow grain plate 27 after passing through the sieve line 10 are removed. The grains are collected and gathered to the right side of the threshing section, and returned to the parallel processing cylinder 2 parallel to the handling cylinder 1 by the second thrower 13 and the second thrower cylinder 14.

The grains processed by the handling teeth 2a of the parallel processing cylinder 2 fall again from the concave onto the swing sorting device 7, and the straw and culm that do not pass through the concave return to the handling chamber 26.

In addition, a suction duct 18 is arranged above the orthogonal processing cylinder 3 over the entire width of the threshing section, and the suction duct 18 sucks up all the dust generated within the threshing section machine frame. Dust exhaust port 1 by suction fan 4
It is blown out to 7.

In this overall configuration, the present invention concerns the position and shape of the processing chamber rotating plate 20 of the orthogonal processing cylinder 3.

As shown in FIGS. 3, 4, 5, and 6, the orthogonal processing cylinder 3 is equipped with handling teeth 3a, above which the processing material is sent through a sieve wire 10, etc. It will be put in.

These are efficiently bitten, and the third opening 2
The feed plates 11 and 12 are arranged on the blocking plate 21 and the processing chamber rotating plate 20 so as to be flowed toward the third port so as to be inclined in the direction of sending the processed material to the third port.

Further, a concave 23 is arranged at the lower part of the orthogonal processing cylinder 3, from which the grains threshed from the chaff enter the second conveyor.

Further, a third port 22 is provided at the left end of the orthogonal processing cylinder 3 for discharging straw waste and chaff after processing to the outside of the machine.

The processing chamber of the orthogonal processing cylinder 3 is surrounded by a "dog"-shaped processing chamber rotating board 20 at the front, a concave 23 extending from this, and a concave 23 at the lower part, and a part of the second flow grain board 28 at the rear. The upper part thereof is covered with a shielding plate 21 leading to the suction duct 18.

The shielding plate 21 is inclined forward in an overhanging manner, and is configured to prevent the material being processed in the orthogonal processing cylinder 3 from being thrown up and blown into the suction duct 18. are doing.

In addition, the processing chamber rotating plate 20 is configured in a “dog” shape or an arc shape close to this, and the upper part is configured to be inclined toward the rear and lower part on the extension of the first grain plate 24,
The lower part is bent along the outer periphery of the orthogonal processing cylinder 3 and looks over the second conveyor 9 or into the concave 23.

In FIG. 2, 19 is a dust feeding port at the end of the crimp net, A is a fourth port, and 32 is a dust exhaust guide plate.

(f) Effects of the invention Since the present invention is constructed as described above, it has the following effects.

First, when the rotation direction of the orthogonal processing cylinder is set counterclockwise as in the past, the processed material is quickly guided in the direction to be discharged to the third port, and the time required for processing by the orthogonal processing cylinder is It also becomes shorter and cannot be completely processed.

On the other hand, since the orthogonal processing cylinder 3 of the present invention rotates in the clockwise direction, the processed material is again rotationally guided in the direction of returning to the swinging sorting device 7 and the suction duct 18. 3, it takes a longer time to process.

Therefore, even particles that are difficult to shed can be completely processed and returned to the parallel processing cylinder 2 again.

Second, by rotating the orthogonal processing cylinder 3 clockwise and placing it at the rear of the swinging sorting device 7 and below the suction duct 18, the wind generated by the orthogonal processing cylinder 3 and the rotating processing material can be This will have an adverse effect on the swing sorting device 7 and the suction duct 18, but by protruding the processing chamber rotating plate 20 to which the feeding plate 12 is attached to a point below the extension line of the first grain plate 24, , it is possible to accurately guide the rotational direction of the material to be processed, and to eliminate particles that may get on top of the swing sorting device 7 or fly into the suction duct 18.

Thirdly, the eddy current of the wind generated by the sorting fan 6 flows onto the processing chamber rotating plate 2 on the extension of the first grain plate 24.
This is likely to occur if the vortex is placed at 0, but by lowering the upper end of the processing chamber rotating board 20 below the extension line of the first grain board, the occurrence of vortices can be reduced, and the wind sorting process can be reduced. Performance can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the sorting device of the present invention. FIG. 2 is also a side sectional view. FIG. 3 is an enlarged side sectional view of the vicinity of the orthogonal processing cylinder. FIG. 4 is also a rear sectional view. Fifth
The figure is a plan view of the vicinity of the orthogonal processing cylinder. FIG. 6 is also a rear view. 1... Handling cylinder, 3... Orthogonal processing cylinder, 7... Rocking sorting device, 12... Feeding plate, 18... Suction duct,
20...Processing room rotating board, 24...First flow grain board.

Claims (1)

[Scope of utility model registration request] An orthogonal processing cylinder 3 that is orthogonal to the processing cylinder 1 is provided at the lower rear of the oscillating sorting device 7, and a suction duct 18 is arranged at the rear of the upper part of the orthogonal processing cylinder 3, and the orthogonal processing cylinder 3 rotates in a clockwise direction. Then, the concave 23 provided below is opened above the second conveyor 9,
At the front of the concave 23, a processing chamber rotating plate 20 on which the feeding plate 12 is arranged at an angle is arranged parallel to the second grain plate 27, and the first grain plate is connected to the upper end of the second grain plate 27. 24. A sorting device in a combine threshing section, characterized in that the upper end of the processing chamber rotating plate 20 is disposed below an extension line of the processing chamber rotating plate 24.