JPH0723648A - Dust removal equipment in thresher - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is to create a device capable of exhibiting satisfactory performance corresponding to a wide range of working conditions in dust removal processing. A dust treatment chamber provided in communication with a terminal portion of the handling chamber is formed to extend rearward of the machine body, and a suction dust collector is provided in communication with a terminal portion of the dust treatment chamber. It is a dust processing apparatus in a thresher, which is provided with a guide plate that opens the dust processing chamber to the sorting chamber between the suction dust discharging apparatus and the latter half of the dust processing chamber.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust processing apparatus for a threshing machine, and is used for a threshing apparatus for combine harvesters and harvesters.

[0002]

2. Description of the Related Art A conventional dust processing device for this type of thresher is
A suction dust collector is connected to the end of the dust processing chamber to discharge dust to the outside of the machine. Therefore, the above-described dust treatment apparatus can perform work efficiently because the dust action is smoothly performed when the amount of dust is large or when it is wet and handled, and the amount of dust is reduced. If a small amount or threshing a well-dried grain culm is directly sucked from the dust treatment chamber, a large amount of grains will be scattered out of the machine or the swing sorting shelf of the lower sorting chamber will not be fully utilized. Had problems such as.

[0003]

The dust treatment device for a thresher is required to be capable of exhibiting satisfactory performance for a wide range of working conditions. The dust treatment equipment must perform a large amount of continuous threshing and a large amount of dust treatment, and conversely, when performing a small amount of threshing work, when performing wet handling work, and when drying grain. The work conditions vary, such as when continuing the threshing work of the culm.

It is required that the dust treatment device of the thresher be compatible with each of the above cases.

[0005]

The present invention takes the following technical means in order to solve the above problems. That is, the dust treatment chamber 2 provided in communication with the end portion 1a of the handling chamber 1 is formed to extend rearward of the machine body 3, and the suction dust removal device 4 is provided at the end portion 2a of the dust treatment chamber 2. Dust in a thresher provided in communication with each other, and provided with a guide plate 6 for opening the dust processing chamber 2 to the sorting chamber 5 between the suction dust discharging device 4 and the intermediate portion 2b of the dust processing chamber 2. It is a processing device.

[0006]

EXAMPLE First, the structure will be described. The handling room 1 is
The grain culm supply port 7 provided at the start end and the grain culm discharge port 8 provided at the end are connected to form a handling port 9, and a feed chain 10 is provided along the handling port 9. ing. And
The handling body 11 has handling teeth 12 arranged on the outer circumference thereof and is rotatably and axially mounted on the handling chamber 1. 13 is a selection network.

The sorting chamber 14 is provided below the handling chamber 1,
The swing sorting shelf 15 is swingably suspended so that the grain removed from the handling chamber 1 can be swing sorted. The dust treatment chamber 2 is provided so that its starting end portion is parallel to the end portion 1a of the handling chamber 1 and communicates with that portion, and is extended rearward from the handling chamber 1 so that the end portion thereof is connected to the suction dust removing device 4. It is configured to communicate.

The processing cylinder 16 is provided with a handle cylinder 1 at the starting end portion.
The spiral 17 is attached to the portion corresponding to 1 to form the scraping processing body portion 18, the processing teeth 19 are planted in the intermediate portion continuous to the scraping processing body portion 18, and the processing body portion 20 is diffused to the end portion continuous to this. The teeth 21 are planted to form a diffusion body portion 22 and are mounted on the dust treatment chamber 2. In this case, the scraping processing body 1
The reference numeral 8 designates the dust discharged from the handling chamber 1 by the spiral 17 to the dust treatment chamber 2
It is configured so that the dust can be further shredded by being transferred to the rear while being taken in. Next, the processing body 2
No. 0 further advances the particle removal processing of the dust by the processing teeth 19 planted on the outer periphery and the processing net 23 stretched downward. In this case, the processing tooth 19 may be configured to have a blade edge.

[0009] The diffusion body portion 22 loosens lumps of dust by the diffusion teeth 21 as it rotates, and enables post-processing (falling, discharging, etc.) to be performed smoothly. Then, the dust treatment chamber 2 has a sorting net 24 on the lower surface corresponding to the scraping treatment body 18.
The processing net 23 is stretched on the lower surface corresponding to the processing body portion 20 as described above, and the periphery of the diffusion body portion 22 at the end portion is provided with the guide plate 6 on a certain portion of the lower surface, and the back surface is provided on the back surface. Has a machine wall and the front is open.

The guide plate 6 is constructed such that the rear machine wall side is pivotally attached and the front side facing the sorting chamber 5 can be opened. 25
Is an operation lever for opening and closing the guide plate 6. In addition, 26 is a straw rack, 27 is a sieve line, 28 is a straw chain. Other Embodiments The straw chain 28 is arranged obliquely in a plan view so that the waste culm discharged from the grain culm discharge port 8 of the handling room 1 can be held and conveyed to the cutter 29. The guiding device 30 is made of a rod and is configured to guide an intermediate portion of the straw during the straw to the diffusion trunk portion 22 side.

In the case of the embodiment shown in FIG. 3, the dust treatment chamber 2 has a structure in which the lower portion of the diffusion barrel 22 is opened from the end edge of the treatment net 23 so that the above-mentioned straw can enter. .
In the embodiment configured as described above, the straw is discharged from the grain culm discharge port 8 of the handling room 1 and the stock source is transferred from the feed chain 10 to the straw chain 28, and is still rearward. Be transported to.

[0012] In such straw, as for straw, the root of the straw is held by the straw chain 28, and the straw gradually leans toward the tip side,
The intermediate portion reaches the guiding device 30 and is pressed against the diffusion barrel 22 while being guided and guided. Therefore, straw is
The grain adhered to the straw in the unhandled state can be reliably shredded, and the grain cut between the straws can be removed to prevent loss.

Next, the operation will be described. First, while driving various rotating parts of the machine body, a grain culm is supplied to the starting end portion of the feed chain 10 and the tip portion is sent to the handling chamber 1. Then, the grain culm is threshed by the rotating handling barrel 11 in the process of being held by the feed chain 10 and passing from the grain culm supply port 7 through the handling port 9 to reach the grain culvert discharge port 8.
As for grain removal, small grains such as grains and dust are used for the sorting net 1
3 is leaked to reach the lower sorting chamber 5 and is carefully selected by the swinging sorting rack 15 and the sorting wind.

On the other hand, the untreated material is the rotating handling cylinder 11
While being carried around by the handling teeth 12, the particles are granulated and sequentially sent to the end portion 1a side of the handling chamber 1. And the unprocessed material is
When it reaches the vicinity of the scraping processing body 18, it is sent to the dust processing chamber 2 by the discharging action accompanying the rotation of the handle 12, and is transferred to the rear by the spiral 17 and processed. In this way, the dust that is continuously supplied to the dust processing chamber 2 is processed by the scraping processing body 18, and further reaches the processing body 20 where it is processed by the processing teeth 19 and processed. It leaks from the net 23 to the sorting chamber 5.

Next, the dust that has reached the diffusion barrel portion 22 is loosened by the rotating diffusion teeth 21, and the straw with the grains having a large specific gravity falls into the sorting chamber 5 and the light dust is discharged. Is sucked by the suction and dust discharging device 4 and discharged to the outside of the machine. In this way, the dust is appropriately subjected to dust removal processing. By the way, when wet treatment or threshing treatment of wheat or the like is performed, if the work is performed with the guide plate 6 closed, the dust is relatively large in amount of straw dust, but the suction dust is being driven. The device 4 sucks dust with high efficiency to remove dust.

Further, when threshing relatively dried ones or a small amount of grain culms, it is desirable to use the rocking sorting rack 15 for the treatment of dusts in the work.
At that time, the operation lever 25 is operated to open the guide plate 6 to perform the work. Then, when the dust reaches the diffusion body 22 and is loosened by the diffusion teeth 21, the dust having a large specific gravity falls into the lower sorting chamber 5 and the swing sorting rack 15 is blown.
The rack 26 is sieved by the sieve line 27 to be dusted. On the other hand, the light dust is sucked by the suction / dust device 4 and discharged to the outside of the machine.

[0017]

As described above, according to the present invention, the dust treatment chamber provided so as to communicate with the end portion of the handling chamber is formed so as to extend to the rear of the machine body, and is provided at the end portion of the dust treatment chamber. Since the suction and dust collecting device is provided in communication with each other, and a guide plate for opening the dust collecting chamber to the sorting chamber is provided between the suction dust collecting device and the latter half of the dust treating chamber. The dust removal process after threshing process can be performed under a wide range of work conditions.
It is possible to exhibit satisfactory performance for each.
That is, the dust removal work must be performed when a large amount of continuous threshing or a large amount of dust removal must be performed, and conversely, when a small amount of threshing work is performed or when wet treatment is performed. Accurate work can be performed according to various work conditions, such as when continuing to thresh dry or culm.

[Brief description of drawings]

FIG. 1 is an embodiment of the present invention and is a cutting plane thereof.

FIG. 2 is a cut front view of the embodiment of the present invention.

FIG. 3 is a sectional plan view of another embodiment of the present invention.

FIG. 4 is a partial cutaway front view showing the operation according to another embodiment of the present invention.

[Explanation of symbols]

1 Handling Room 2 Dust Treatment Room 3 Machine Body 4 Suction Dust Machine 5 Sorting Room 6 Guide Plate

Claims (1)

[Claims] 1. A dust treatment chamber provided in communication with the end portion of the handling chamber is formed to extend rearward of the machine body, and a suction dust collector is provided in communication with the end portion of the dust treatment chamber. A dust processing apparatus for a thresher that includes a guide plate that opens the dust processing chamber to a sorting chamber between the suction dust discharging apparatus and the latter half of the dust processing chamber.