JPH01104111A - Dust removal device for threshing equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust evacuation device for a threshing machine for discharging dust from the end of a sorting path for wind-selecting and conveying threshed products.

Conventionally, as shown in Japanese Unexamined Patent Application Publication No. 49-115847, a dust evacuation device for a threshing device has been provided with a transfer sorting body that is sloped upward in a straight line toward the rear, and a dust removal device is provided above the rear end of the sorting body. Some are equipped with a suction cross-flow fan,
Moreover, the starting end of the transfer sorting body is located behind the dust inlet at the end of the handling cylinder, and the straw waste and fine dust coming through the sorting path are transferred to the rear by the upward-sloping transfer sorting body. At the same time, the dust is discharged through a dust exhaust port while being sucked by a suction cross-flow fan.

However, in a dust evacuation device with such a configuration, first, the starting end of the transfer sorting body is located at the rear of the dust inlet of the handling cylinder, so that the falling objects from the dust inlet are not reliably received by the transfer sorting body. Therefore, falling objects that fall in front of the transfer sorting body due to the straight upward slope structure of the transfer sorting body may not be oscillatedly conveyed onto the transfer sorting body, Regardless of the shaking of the sorting body, falling objects transferred onto the body are
It takes time to reach the end, and the dust removal function cannot be achieved quickly.Moreover, since the suction cross-flow fan is located above the end of the transfer sorting body, the most efficient point of suction is at the transfer of the transfer sorting body. If it deviates from the direction, the suction and discharge efficiency of fine straw waste and dust will deteriorate, and there is a risk that the dust exhaust passage will be clogged.

In this invention, a transfer sorting body is disposed in the sorting path for wind-sensing the threshed products, from below the handling cylinder dust outlet provided below the end of the handling cylinder to the rear, and for transferring and sorting the fallen items backwards. established,
The starting end of the transfer sorting body is located at the bottom of the handling cylinder dust inlet, and a suction cross-flow fan is installed above the midway part of the sorting body, which corresponds to the lower part of the handling cylinder dust inlet of the transfer sorting body. To provide a dust evacuation device for a thresher which serves as a suction action part, with a horizontal receiving part and a part where the suction action from the suction port where the suction cross-flow fan is located is tilted backward and upward. It is something.

Embodiments of the present invention will be described in detail below based on the drawings.

That is, Fig. 1 shows a cross-sectional perspective view of the proposed structure, and Fig. 2 shows a cross-sectional side view of the same. This is a chain that inserts grain into a handling chamber and transports it while threshing. (2) is a straw discharger, which transports the shredded husk to be discharged. (3) is a handling cylinder, which sheds grains from the culm conveyed by the foot chain (1).

(4) is a crimp net, which is provided in a semi-circular shape below the handling cylinder (3) and sieves the paddy shed by the handling cylinder (3).

Moreover, the rear end of the crimp net (4) ends slightly forward of the rear end of the handling drum (3), and there is a portion below the end of the handling drum (3) that the crimp net (4) does not reach. This part is used as a handling cylinder dust inlet (14) through which objects falling from the handling cylinder (3) fall downward.

(5) is a swinging sorting plate, and Crimp! Paddy, straw waste, etc. falling from 1l (4) are sieved by shaking.

(6) is a transfer sorting body, which is connected to the swinging sorting plate (5) and the body, and its starting end is located at the bottom of the handling cylinder dust inlet (14), and it extends toward the rear. A sorting net (8) is provided diagonally below the transfer sorting body (6) and is also connected integrally with the swinging sorting plate (5). ), the transfer sorting body (6), and the sorting net (8) are all integrally moved back and forth by a swinging rod (7).

(9) is a rack-shaped first stream grain plate, (10) is a rack-shaped second stream grain plate, and the first grain plate (9) is a sorting net (
8), the second grain plate (10) is transferred to the transfer sorting body (6)
They are provided below the conveyor belt 11 and conveyor number 2 (12) so as to be inclined toward the conveyor belt No. 1 and conveyor No. 2 (12), respectively.

(13) is a joint between the end of the foot chain (1) and the starting end of the straw removal chain (2), which is located below the joint to drop off the stick grains stuck in and attached to the threshing can discharged from the empty can opening. This is the so-called No. 4 port, which is used to return the particles to the sorting path.

(15) is the terminal discharge port, which is the sorting route (S) described later.
A casing (18) is provided above the terminal discharge port (15), and the upper limit of the terminal discharge port (15) is regulated by the casing (18). The same casing (18) has a stab grain reduction port (
13) Located at one end, it also serves as the No. 4 gutter for reducing the prickles.

The terminal discharge port (15) is provided with a partition wall (19),
The partition wall (19) divides the terminal outlet (15) into an upper outlet (15-1) and a lower outlet (15-2) below the casing (18). ,
Its shape is such that the first half (19-1) hangs downward,
The latter half portion (19-2) is formed horizontally or almost downwardly sloping.

In the discharge passage of the upper discharge port (15-1), there is a partition wall (19).
A suction cross-flow fan (16) is provided at the position of the front half (19-1) of The cross-flow fan (16) has an upper discharge port (15-1
), and the fan (16) uses the starting end opening of the upper discharge port (15-1) as the suction port (15-3).
Furthermore, the suction port (15-3) is formed in an open state toward the sorting route (S), and the suction cross-flow fan (16) is configured to rotate with its rotation direction directed toward the downstream side of the sorting route. ing.

Here, the structure of the transfer sorting body (6) and the handling cylinder dust inlet (14) will be explained.
) and the suction cross-flow fan (16). The part of the transfer sorting body (6) corresponding to the lower part of the handling cylinder dust inlet (14) is formed horizontally, and the receiving part ( A), and the suction port (1) is located behind the receiving part (A) of the transfer sorting body (6), that is, where the suction cross-flow fan (16) is located.
The part to which the suction action from 5-3) is applied is formed to be inclined rearward and upward, and serves as a suction action part (B).

In Fig. 2, (M) indicates the operating arrow when a falling object is caught by the receiving part (A), and (N) shows the operation arrow when the falling object is caught by the receiving part (A).
B) shows the operating arrow in a state in which fallen objects such as straw waste, dust, etc. are swung up backwards and upwards and sucked by the suction cross-flow fan (16).

(77) is a pressure cross-flow fan, and the oscillating sorting plate (5
), the threshing material is conveyed through air separation, and the dust air is discharged from the terminal outlet (15) to the outside of the device. flow fan (
The HA tract formed by step 17) is designated as the sorting route (
S) and Tosurano.

In the embodiment of the present invention, the grain culm transported by the foot chain (1) is inserted into the handling chamber and threshed, and the paddy threshed by the crimp net (4) is sieved and harvested. Cut culms, straw waste, etc. fall from the dust inlet (14) and are caught by the receiving part (A) of the transfer sorting body (6) located below it, and then transferred to the transfer sorting body (6). The falling object will be transferred backwards due to the rocking motion in 6), but at that time, since the rear is tilted upward, the falling object will be swung upwards backwards, and the falling object will be swung upwards. The position, that is, the position of the suction action part (B) of the transfer sorting body (6) is such that the suction action from the suction port (15-3) where the suction cross-flow fan (16) is located extends. Therefore, the suction cross-flow fan (16) efficiently sucks up the silk straw waste and dust in the falling objects, and the suction and discharge can be performed efficiently and the clogging of the dust exhaust passage can be prevented. In this way, in addition to the transfer sorting and suction of fallen objects from the handling cylinder dust inlet (14), part of the sorting air flowing along the sorting path (S) is transferred to the suction cross-flow fan (16). ) is discharged from the lower discharge port (15-2) of the terminal discharge port (15) together with the large straw waste that is not sucked into (16) and is discharged from the upper discharge outlet (15-1), and furthermore, the grain reduction port (13)
1tUT flow fan (1
6) from the suction port (15-3) and discharged from the upper discharge port (15-1). It is possible to prevent dust from being blown up by the sorting wind from the stinging particle reduction port (13), and also prevent the dust from being blown up by the upper discharge port (15-1).
) and the lower outlet (15-2), small dust and large straw waste are discharged separately, so that the exhaust airflow from the upper outlet (15-1) is discharged at high speed. This creates an ejecting effect and the lower outlet (
15-2), and the upper discharge port (15-1)
), and the exhaust air is efficiently discharged outside the device along with the exhaust air from the suction cross-flow fan (16) and the lower outlet (15-2) at the end of the sorting path (S). This system works in conjunction with the exhaust from the threshing equipment to ensure that the dust is discharged outside the equipment, and prevents dust from accumulating in the threshing equipment and causing turbulence, which disturbs the sorting process. At the lower outlet (15-2) of the outlet (15), the exhaust air from the upper outlet (15-1) becomes an air curtain, and the outside air flows into this lower outlet (15-2). This prevents the air from being blown into the air.

According to this invention, the starting end of the transfer sorting body is located at the lower part of the handling cylinder dust inlet, the suction cross-flow fan is disposed above the midway part of the transfer sorting body, and the handling cylinder dust inlet of the transfer sorting body is disposed. The part corresponding to the lower part is a horizontal receiving part, and the part where the suction action of the suction port reaches is a suction action part that slopes backward and upward, so that objects falling from the dust inlet are not caught. The material is securely received at the rear end and is transported rearward by the swinging movement of the transport sorting body, and at that time, it is swung upward and rearward, and the suction action from the suction port is applied to that position. As a result, the suction cross-flow fan efficiently suctions and discharges fine straw debris and dust from falling objects, and has the effect of preventing clogging of the dust exhaust passage.

FIG. 2 is a cross-sectional side view of the same.

Claims (1)

[Claims] 1) In the sorting route (S) where the threshed material is conveyed by wind sorting, the fallen objects are removed from below the handling cylinder dust outlet (14) provided below the end of the handling cylinder (3). A transfer sorting body (6) for transferring and sorting is arranged, and the starting end of the transfer sorting body (6) is located at the lower part of the handling cylinder dust inlet (14), and at the same time, the starting end of the transfer sorting body (6) is located at the upper part of the middle part of the sorting body (6). A suction cross-flow fan (16) is provided, and the portion of the transfer sorting body (6) corresponding to the lower part of the handling cylinder dust-feeding port (14) is a horizontal receiving part (A), and the suction cross-flow fan The suction action part (B
) as a dust removal device for threshing equipment.