JPS6021958Y2 - Sorting device in combine threshing section - Google Patents

Description

[Detailed description of the invention] The present invention relates to a sorting device for a combine threshing section.

That is, a processing cylinder is provided behind the swinging device, and a wind direction plate is provided between the processing drum and the swinging device so as to be inclined toward the dust removal fan.
This is a sorting device of the combine threshing section configured so that the lower part faces the second gutter.

According to the proposed method, a wind direction plate installed between the processing cylinder and the swinging device forms an air path leading from the rear of the swinging device to the dust removal fan, thereby allowing light foreign matter to be discharged from the swinging device. The dust is directly sent from the rocking device to the dust removal fan and discharged outside from the large opening, and heavy items such as ear cuts, stem chips, and grains, which are separately discharged from the rocking device, are taken into the processing barrel. This process separates the grains and impurities, and the impurities are reliably discharged to the dust exhaust fan.Therefore, there is less waste in the processing chamber, and less power is required for separation. be.

The embodiments shown in the drawings will be described below.

Reference numeral 1 denotes a handling barrel which is built into the handling chamber 2, and from the threshed grains, grains and fine straw waste leak through the crimp net 3, and unleaked materials are discharged from the dust outlet 4. be done.

Below the crimp net 3, there is a swinging sorter equipped with a feed pan 5a, a clean sieve 5c, and a stroke rack 5b. The selected grains fall into the first gutter 8 where the first auger is located, and the pieces of ears leaking from the straw rack and some of the grains fall into the second gutter where the second auger is located. It falls into gutter 9.

In this case, a processing cylinder 10 is provided behind the rocking device 5 in the sorting device of the combine threshing section as described above, and a wind direction plate 12 which also serves as a grain flow board is installed between the processing drum 10 and the rocking device 5 to remove dust. It is provided so as to be inclined in the direction of the fan 7, and is configured such that the lower side faces the second gutter 9.

In the illustrated example, a crimp net 11 of a processing cylinder 10 is stretched from the upper end of a wind direction plate 12, and the upper part on the dust removal fan 7 side forms a processing cylinder chamber which is open.

Therefore, the processing cylinder 10 is placed behind the swinging device 5 at a position where the second auger is located below and the dust removal fan 7 is located above.

In the illustrated one, a dust exhaust fan 7 is provided above the discharge line a of the material discharged from the processing cylinder 10.

In the one shown in FIG. 2, the angle α between the dust guide surface 13 and the emission line a is larger than 90'.

Others 14 are feed chains, 15 are straw removal chains,
16 indicates the fourth funnel, and 17 indicates the large mouth opening.

In this case, the wind direction plate 12 forms an air path from the rear of the rocking device 5 toward the dust removal fan 7, so that light foreign matter discharged from the rocking device 5 is directly transported from the rocking device 5 to the dust removal fan. Heavy items such as ears of ears, stalks, and grains are sent to the processing chamber 7 and discharged to the outside from the large opening 17, and are separately discharged from the rocking device. The waste is separated into foreign matter and is reliably discharged to the dust removal fan 7, so that there is less waste in the processing barrel and less power is required for separation.

Note that if the processing barrel is formed in a position behind the rocking device with the No. 2 auger below and the dust removal fan above, the auger shaft and dust removal fan shaft should be installed parallel to the processing barrel shaft. This not only simplifies the structure, but also allows the dust to be processed before the dust exhaust fan to ensure separation of dust and grains, and the rotational force of the processing cylinder can supply the dust to the dust exhaust fan, allowing the dust to be removed. The processing barrel chamber will not be clogged due to stagnation, etc.

In addition, by providing the dust removal fan oscillating device behind the discharge line of the material discharged from the processing barrel and above the processing barrel, grains, etc. are accelerated in the processing barrel and are less affected by the wind. Therefore, the foreign matter that flies along the emission line, hits the dust removal guide, and is returned to the swinging device side is greatly influenced by the wind and is sucked into the dust removal fan, so that it can be sorted with little loss.

Since grains are included in the materials discharged from the processing barrel, if these are discharged directly to the dust exhaust fan, the grains will also be discharged, resulting in a large loss.

[Brief explanation of drawings]

Figures 1 and 2 show schematic diagrams of the proposed device. 1... Handling cylinder, 2... Handling room, 5...
・・Swinging sorting device, 6... Karawini, 7...
・Dust exhaust fan, 8... Ichiban gutter, 9...
Second gutter, 10... processing cylinder, 12... wind direction plate.

Claims (1)

[Scope of utility model registration request] A combine harvester in which a processing cylinder is provided behind the swinging device, and a wind direction plate is provided between the processing drum and the swinging device so as to be inclined in the direction of the dust removal fan, and the lower side thereof faces the second gutter. Separation device in the threshing department.