JPH0753055B2 - Dust removal device in threshing section of combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention can effectively remove culm and dust behind a threshing portion of a DC combine for threshing cut culms by a screw handling cylinder. The present invention relates to a culm dust removing device in a threshing section of a combine.

[Conventional technology]

Conventionally, an exhaust culvert is formed below the terminal side of a screw handling cylinder extending in the front-rear direction of the machine body, and a cross-flow fan for dust removal is provided above the terminal side of the swing sorting body below the handling cylinder. In the threshing section of the combine, which is arranged and configured, as shown in Japanese Patent Application No. 59-198975 of the prior art, there are two outlets, a dust outlet, and dust easily stands up. The structure is such that the discharge is poor, and the rotation of the handling cylinder discharges laterally to the side of the machine, affecting the uncut side and hindering the next combine operation on the uncut side. It has the drawback that it will happen.

[Problems to be solved by the invention]

The present invention solves these drawbacks, and the dust escaping from the end side of the handling cylinder and the dust from the end side of the rocking sorting body are prevented from dusting by one cross flow fan. In order to prevent the occurrence of culm, the culms can be smoothly discharged, and the culms and dust can be reliably and satisfactorily discharged so that the culms can be discharged to the rear of the machine body. It is provided.

[Means for solving problems]

Therefore, in the present invention, a guide plate that is continuously provided below the front edge of the outlet is stretched on the upper front side of the crossflow fan facing upward of the swing sorting body, and the upper rear side of the crossflow fan is It is constructed so as to be opened below the outlet.

[Action]

Therefore, the culms are dropped above the crossflow fan that discharges dust above the rear part of the rocking sorting body, and the culms and dust are discharged all at once by the crossflow fan, which results in dust. It is possible to prevent standing and to smoothly discharge the culms, and the culms can be satisfactorily discharged to the rear of the machine body by the cross flow fan.

〔Example〕

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

FIG. 2 shows a side view of the combine, both crawlers (6)
In front of the threshing section (A) mounted on the machine supported by, the cutting section (B) including the reel (7), the cutting blade (8), the scraping auger (9), and the feeder (10) is communicated. To make a series
In the threshing section (A), the screw (1a) is attached to the peripheral surface.
The screw handling drum (1) wound around the shaft is rotatably mounted inward in the upper and lower direction of the machine body, and culm blades (11) (11) are provided on the outer periphery of the terminal end of the handling barrel (1). The front and rear chaff sheaves (3a) (3b), the Glensieve (3c), the grain plate (3d), etc. are installed below the crimp net (12) stretched under the screw handling cylinder (1). The oscillating sorting body (3) is installed, and a cross flow fan (13) for compressed air and a compressed air fan (14) are provided in front of and below the front of the oscillating sorting body (3).
Further, a No. 1 spiral conveyor (15) and a No. 2 spiral conveyor (16) are arranged below the Glen sieve (3c) and the grain plate (3d), respectively, to have the same structure as the conventional structure.

Further, as in the conventional type, a wide culm outlet (2) is formed downward below the terminal side of the screw handling cylinder (1), and the culm above the terminating side of the swing sorting body (3). Like the mouth (2), the transverse flow fan (4), which is horizontally long, is axially mounted, but on the upper front side of the cross flow fan (4), below the front line (2a) of the culm outlet (2). A guide plate (5) continuous with the cross flow fan (4) is installed so that the upper rear side of the cross flow fan (4) is opened below the discharge port (2). A downward discharge port (18) is formed on the lower end side of a rear cover (17) at the lower rear side.

Therefore, during combine operation, if the grain culms cut by the cutting section (B) are supplied to the threshing section (A), they will be threshed by the screw handling cylinder (1), and will leak from the crimp net (12). The sorted objects are wind-sorted by the compressed air fan (14) while being swing-sorted by the swing sorting body (3). On the other hand, on the end side of the screw handling cylinder (1), the blades (11) ( By 11), the culms are discharged downward from the culm outlet (2).

In that state, the cross-flow fan (4) rotating as shown by the arrow (a) absorbs dust from the rear part of the oscillating sorting body (3) as shown by the arrow (b), and the dust is discharged as it is. The crossflow fan (4) receives the culm that falls from the culm (2) as shown by the arrow (c), and the dust is discharged together with the dust from the discharge port (18) as shown by the arrow (d) toward the rear of the aircraft. Will be discharged to.

〔The invention's effect〕

As described above, according to the present invention, it is possible to reliably and satisfactorily discharge the culm that falls from the dust discharge port (2) by the cross flow fan (4) so that dust does not stand with dust and does not become clogged. Moreover, the culms discharged toward the lateral side of the machine by the rotation of the screw handling cylinder (1) can be discharged toward the rear of the machine by the cross flow fan (4). It is possible to satisfactorily discharge the waste so that it is not discharged to the cutting side, and it has a feature that it can be suitably implemented with a simple structure.

[Brief description of drawings]

FIG. 1 is a side sectional view of an essential part which is an embodiment of the present invention, FIG. 2 is a side view of a combine, and FIG. 3 is a side sectional view of a threshing part. (1) ... Screw handling cylinder, (2) ... Exhaust outlet, (3) ... Swing sorting body, (4) ... Cross flow fan, (A) ... Threshing section,
(2a) ... Front, (5) ... Guide plate.

Claims (1)

[Claims] 1. A swing sorter (2) formed below an end (2) of a screw handling cylinder (1) extending in the front-rear direction of the machine body and below the handling cylinder (1). In the threshing part of the combine, which is configured by disposing the dust-exhausting cross-flow fan (4) above the terminal side of (3), the swinging sorting body (3).
At the upper front side of the cross flow fan (4) facing upward, a guide plate (5) continuous below the front line (2a) of the discharge port (2) is stretched, and the cross flow fan (4) is extended. An upper part rear side of 4) is installed so as to be opened below the exhaust port (2), and an exhaust dust collecting device.