JPH0620388B2 - Threshing machine sorting and conveying device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a threshing and sorting device for a thresher that sorts and conveys at the same time a processed material leaked from a net in a handling room.

[Prior Art] Conventionally, an oscillating sorting plate is disposed at a lower position of a handling chamber, and by swinging a processed material leaked from the handling chamber, a difference in specific gravity between a grain and straw waste is generated. At the same time as the specific gravity difference selection is carried out, it is conveyed to the rear, but when the treated material is wet such as during wet threshing, the following inconveniences occurred.

[Problems to be solved by the invention]

That is, if the processed product is wet even if it is rocked by the rocking / sorting plate, the processed product adheres to the upper surface of the rocking / sorting plate,
In some cases, sorting and rearward transfer could not be performed. Also,
Although the swing selection plate is swung by a crank or the like, there is also a drawback that the vibration caused by this drive is large.

The present invention has been made by paying attention to the above situation,
An object of the present invention is to provide a product that can be sorted and transported to the rear without any trouble in wet threshing and that has little vibration.

[Means for solving problems]

That is, the characteristic configuration of the present invention is that in the sorting and conveying device of the threshing machine, the sorting and conveying device is provided with a blower mechanism for blowing air to the lower surface of the sorting and conveying plate at a position below the sorting and conveying plate arranged and fixed below the handling chamber. In the point that the plate is provided with a passage for circulating the air from the air blowing mechanism toward the upper rear side in the processing object transfer direction, and the air blowing mechanism is configured to be able to blow the air intermittently, its action and effect Is as follows.

[Work]

The wind blown intermittently on the lower surface of the sorting and conveying plate blows upward and rearward through the through holes. Therefore, the processed material leaked from the handling room floats on the sorting and conveying plate by the intermittent wind, and when it falls, the specific gravity difference sorting is performed. Moreover, the processed products are conveyed backward while being sorted by the wind as described above. Therefore, even if the processed material is wet, it does not adhere to the sorting and conveying plate due to the intermittent wind blown up from below.

〔The invention's effect〕

As a result, even in wet threshing, the specific gravity difference can be sorted without any trouble, and at the same time, it can be conveyed backward. Moreover, there is no mechanical vibration at this sorting and transporting site, and the vibration as a whole threshing machine is reduced.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

Fig. 3 shows a threshing machine mounted on a combine. This threshing machine is equipped with a feed chain ( 4) is provided, and a blower mechanism (A) for selecting the processed matter that has leaked through the receiving net (3) of the handling room (2) under the handling room (2) and the blowing mechanism (A). )) A conveyor plate fixed to the machine at a position above
(8) and a sorting chamber (11) provided with a swing sorting device (6) at a position behind the sorting and conveying plate (8), and further the sorting chamber (11)
The first collection part (7) that collects the first item after sorting, the second collection part (9) that collects the second item, and the dust outlet for the straw after sorting
(14) is provided with a dust-exhaust fan (10) that discharges it out of the machine.

The blower mechanism (A) is configured to intermittently supply the selected wind, and its structure will be described below.

A blower fan (5) and a duct (16) communicating with the blower fan (5) are provided below the sorting and conveying plate (8). The duct
(16) is constructed by bending the Karako case (23) to the lower surface of the sorting and conveying plate (8) at a right angle in a side view, and the straight portion (24) is arranged below the sorting and conveying plate (8). It is possible to blow the sorting air from the Karato (5) through the straight line portion (24) and directly to the upper side to blow it uniformly over the entire lower surface of the sorting and conveying plate (8). A storage chamber (21) with a slightly larger diameter is formed at the central position of the straight portion (24) of the duct (16), and a rotating plate for opening and closing the air passage (13) from the Kara (5) is formed there. (15)
It is arranged so as to be rotatable about a horizontal axis (P) in a direction orthogonal to the blowing direction of the air passage (13), and the rotating plate (15) is rotated and arranged horizontally. Air duct in case (13)
Is closed, and then the air passage (13) is opened as it is inclined, and when the air passage is vertically arranged, the air passage (13) is fully opened. Therefore, when the rotating plate (15) rotates and closes the air passage (13), air is not sent to the sorting and conveying plate (8) side, and the through holes formed in the sorting and conveying plate (8).
The wind does not blow out from (12), and the rotating plate (1
If 5) rotates and opens the air duct (13),
The wind from (5) blows upward through the through hole (12) of the sorting and conveying plate (8), and thus the wind is intermittently rotated by the rotation of the rotating plate (15). 8) It will be blown up from the top.

Further, the dimension L ₁ from the sorting / conveying plate (8) at the perpendicular position passing through the axis of the rotary plate (15) to the rear end of the sorting / conveying (8) is the sorting / conveying at the perpendicular position. It is formed to be slightly longer than the dimension L ₂ from the plate (8) to the front end of the sorting and conveying plate (8).

The sorting and conveying plate (8) is formed by a saw blade shape in which a large number of bent pieces (17) are continuous, and the through hole (12) is formed in the inclined piece (18) on the rear side of each bent piece (17). Is provided so that the wind blown up from the sorting and conveying plate (8) is blown out obliquely rearward. In addition, the sorting and conveying plate (8) has a front portion that is inclined rearward so that the sorting and conveying plate (8) extends horizontally rearward at a position above the rotating plate (15). It is possible to prevent the number of secondary objects from increasing particularly by improving the transportation of the front end part of) and adjusting the transportation speed on the rear side of the sorting and transporting plate (8).

As shown in FIG. 3, a flow path (20) for sending intermittent wind from the storage chamber (21) to the rear selection chamber (11) is provided through a partition wall (19), and the sorting and transporting is performed. The rear end of the plate (8) and the partition wall
An opening (22) is also formed between (19) and
The wind from (5) can be used for rear dust screening.

[Another embodiment]

A blower mechanism that generates an intermittent wind by using a shutter plate that intermittently shields and opens the air duct (13) by projecting and retracting into the air duct (13) in conjunction with a drive mechanism.
(A) may be configured.

It should be noted that reference numerals are added to the claims for facilitating the description, but the present invention is not limited to the structure of the accompanying drawings by the entry of the reference numerals.

[Brief description of drawings]

The drawings show an embodiment of a sorting and conveying device for a thresher according to the present invention. Fig. 1 is a side view of essential parts, Fig. 2 is a perspective view showing a part of a sorting and conveying plate, and Fig. 3 is a thresher. It is the whole longitudinal cross-sectional view. (2) …… Handling room, (8) …… Sorting and transporting plate, (12) …… Through hole,
(A) …… Blower mechanism.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Susumu Onishi 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Works (72) Inventor Yoshitada Nakamura 64, Ishizukita-machi, Sakai City Osaka Prefecture Inside the Sakai Works (72) Inventor Katsu Ando 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd. Inside the Sakai Works (56) References: 53-147273 (JP, U) Actual: 51-18283 (JP) , U) Actual development Sho 53-148975 (JP, U)

Claims (1)

[Claims] 1. A sorting and conveying plate (8) arranged and fixed below a handling room (2).
In the sorting and conveying device of the thresher, which is provided with a blower mechanism (A) for blowing air on the lower surface of the sorting and conveying plate (8), the wind from the blower mechanism (A) is applied to the sorting and conveying plate (8). Through which the flow is made to flow rearward and upward toward the processed material transfer direction
A threshing machine sorting / conveying device in which (12) is provided and the blower mechanism (A) is configured to intermittently blow air.