JPH0536364Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a method for discharging dust at the rear of the threshing section of a combine harvester, which is capable of dispersing and discharging dust at the rear of the threshing section in which a screw handling barrel is installed. Regarding equipment.

[Conventional technology]

Conventionally, the exhaust port located below the terminal end of the screw handling barrel and the dust exhaust port of the dust exhaust fan located at the terminal end of the sorting section below the screw handling barrel were installed to open toward the rear of the machine. In the threshing section of the combine, a large amount of waste culm is discharged from the waste culm opening,
Since the dust from the dust exhaust port is mixed with the dust in the form of clumps and discharged to the rear of the machine, it is necessary to diffuse the clumps of dust after the combine harvester operation. Japanese Patent Publication No. 60-26610 discloses a technique in which a diffusion device is provided behind the cutter in order to diffuse waste straw cut by the cutter in a conventional self-extracting type combine harvester.

[Problem that the invention attempts to solve]

In the conventional technology described above, although a self-removal type combine harvester can provide a sufficient diffusion effect, a general-purpose full-loading type combine harvester discharges stem culms that are too long or too large in volume, resulting in a sufficient diffusion effect. There was a risk that it would not work and cause a blockage. Furthermore, since the process does not involve holding and transporting the stem culm, this technology cannot be applied without special consideration such as the position of the cutting device. This invention enables the exhaust culm dust to be diffused and discharged from the rear of the machine during dust removal, so that there is no need to perform the work of dispersing the dust. The present invention provides a simple structure that operates reliably and satisfactorily even in a full-throttle type combine harvester, so that it can be suitably implemented.

[Means for solving problems]

Therefore, in the present invention, a beater is rotatably connected to the inside of the dust barrel, which communicates with the part where the exhaust culm and the dust exhaust port meet and opens toward the rear of the aircraft, and an opening at the rear of the dust barrel It is constructed by disposing a plurality of guide plates standing vertically halfway in the vertical direction at intervals in the width direction on the inner side.

[Effect]

Therefore, a large amount of waste culm discharged from the discharge culm and dust discharged from the dust discharge port are combined, and the beater scrapes the mixture and sends it out vigorously backwards, and the guide plate This means that dust can be removed by separating and guiding the dust while widely dispersing it laterally toward the rear of the aircraft.

〔Example〕

Next, the embodiment shown in the drawings will be described.

FIG. 2 shows a side view of the combine harvester. In front of the threshing section A mounted on the machine body supported by both crawlers 9, there are a reel 10, cutting blades 11, and a scraping auger 1.
2. A reaping section B consisting of a feeder 13 and the like is arranged in series, and the threshing section A has a screw handling barrel 1 mounted in the upper interior thereof in the longitudinal direction of the machine, which is equipped with a discharge blade 1a on the outer periphery of the terminal end, and the screw A crimp net 14 is stretched below the handling drum 1, and a downwardly directed culm outlet 2 is formed at the bottom of the terminal end.
6, pressure fan 17, No. 1 spiral conveyor 18,
A No. 2 spiral conveyor 19 is provided to constitute a sorting section, and a cross-flow fan-shaped dust exhaust is installed above the rear part of the swing sorting body 15, which is the terminal end of the sorting section, and in front of the lower side of the discharge culm 2. A fan 3 is installed and a dust exhaust port 4 is formed at the lower rear side of the fan 3, so that the structure is similar to the conventional structure.

The exhaust culm port 2 and the dust exhaust port 4 are connected to the front part of a wide dust exhaust cylinder 5 extending rearward, and the rear end of the dust exhaust cylinder 5 is provided with an opening 7 facing toward the rear of the machine body.
The inside of the dust exhaust cylinder 5, which is the part where the lower part of the exhaust culm 2 and the outside of the dust exhaust port 4 meet, has a large number of holes on the circumference having approximately the same length as the width thereof. Feather 6a
The beater 6 equipped with the beater 6 is rotatably mounted on a shaft, and one inner surface 8a of the dust exhaust barrel 5, which is the inner side of the opening 7, is curved so as to open to the side of the machine body that has already been cut. On the inner side of the opening 7, guide plates 8 which are curved in the same way as the inner surface 8a are arranged at intervals in the width direction, respectively, standing upright from the lower surface to the middle in the vertical direction. It can also be configured by being vertically installed.

In addition, a switching plate 17 that can be rotated around a support shaft 16 is installed at the front lower part of the dust exhaust barrel 5 which is diagonally below the dust exhaust port 4 and below the front side of the beater 6. The switch plate 1 is operated by operating the support shaft 16 from
7 is installed so that it can be switched freely to open and close, but if the inside is clogged with waste, it will be pushed and the switching plate 1
7 can be opened automatically, or when the switching plate 17 is opened in this way, a micro switch can be operated to make a message or stop the engine.

Therefore, during work, reaping and threshing are performed in the same way as in the past, and the culm is discharged from the terminal end of the screw handling barrel 1 by the discharge vane 1a from the culm opening 2 as shown by arrow A, and the culm is sorted. At the end of the section, as shown by arrow B, the dust exhaust fan 3 sucks up dust, and the dust is discharged from the dust exhaust port 4 as shown by arrow C, but at the point where they meet, as shown by arrow D. The rotating beater 6 beats the waste culm and the dust, mixes it, and sends it out rearward with great force as shown by the arrow H, so that it is dispersed in the width direction inside the dust removal cylinder 5. The discharged waste is distributed and guided by each guide plate 8, and long culm breaks are guided by each guide plate 8.
While passing upward without getting caught on the leading edge of the
It will be widely diffused and released from the opening 7 toward the rear of the aircraft as shown by the group of arrows.

In that case, the dust will be guided by the curved inner surface 8a and the guide plate 8 and will be dispersed toward the rear of the cut side of the machine, and the waste will be deposited on the planted grain culm on the uncut side. This means that you can prevent this from happening.

Also, if the front of the beater 6 is clogged with waste, it can be removed from below by rotating the switching plate 17 as shown by arrow T to open it, and keeping the switching plate 17 open. This means that the dust can be discharged downward without spreading.

[Effect of the invention]

In this way, in the present invention, a large amount of waste culm discharged from the culm discharge port 2 and dust discharged from the dust discharge port 4 are combined, and the beater 6 is used to scrape the culm while beating and divide the mixture to separate it from the rear. In addition to sending out the dust vigorously, the dust is divided and guided by each guide plate 8 so that it can be discharged from the opening 7 to the rear of the machine.This means that the dust can be widely dispersed and discharged to the rear of the machine instead of forming clumps like in the past. In addition, long culm breaks and the like can escape upward or downward without getting caught on the front edge of each guide plate 8, allowing for better dust removal. It has the advantage that it can be carried out suitably with a simple structure that allows for good diffusion treatment.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of the main part of an embodiment of the present invention, Fig. 2 is a side view of the combine harvester, Fig. 3 is a side sectional view of the threshing section, and Fig. 4 is a partial plan view of Fig. 1. FIG. 1... Screw handling body, 2... Culm opening, 3...
Dust exhaust fan, 4... Dust exhaust port, 5... Dust exhaust cylinder, 6...
...beater, 7...opening, 8...information board.

Claims (1)

[Scope of utility model registration request] Discharge culm 2 located below the terminal end of the screw handling cylinder 1
In the threshing section of the combine, the dust exhaust port 4 of the dust exhaust fan 3, which is the terminal end of the sorting section below the screw handling barrel 1, is installed to open toward the rear of the machine. A beater 6 is rotatably mounted inside the dust exhaust barrel 5, which opens toward the rear of the machine body and communicates with the part where the dust exhaust port 4 and the dust exhaust port 4 join together, and a beater 6 is rotatably mounted inside the dust exhaust barrel 5, which opens toward the rear of the machine body and communicates with the part where the dust exhaust port 4 and the dust exhaust port 4 join together. 1 is a rear dust evacuation device characterized in that it is constructed by arranging a plurality of guide plates 8 that stand at intervals in the width direction.