JPH0697914B2 - Thresher dust extractor - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust remover for a thresher.

2. Description of the Related Art Conventionally, the supply of waste culvert transferred by a waste culm transfer device provided on the upper side of this suction dust collector is connected to the rear side of the suction dust collector that communicates with the rear end of the threshing selection chamber and sucks dust. A culm cutter that receives and cuts into a predetermined length and discharges is provided with the tip side wider than the width of the suction dust collector, and a dust case covering the suction dust collector is provided on the upper side of the suction dust collector. , The rear end of this dust case is provided in the vicinity of the exhaust cutter, and is connected between the left and right side frame parts of these suction dust collectors and the side frame parts outside the tips of the exhaust cutter. It was a dust removing device for a thresher that does not have a connecting member or the like.

Problems to be Solved by the Invention Grain culms are sandwiched between a transfer chain and a sandwiching rod and threshed while being transported in a threshing chamber. Threshed grains and straw waste generated during the threshing process are used for threshing sorting. It is supplied to an indoor rocking sorting shelf, and is separated and sorted into grains and straw waste during rocking transfer in this rocking sorting shelf, and the separated and sorted grains are leaking from the rocking sorting shelf, Sorted by the wind generated by the blower, this wind-selected grain is discharged out of the machine by the lifting device, the separated and sorted straw waste is sucked by the suction dust collector, while being guided to the dust case, It is discharged to the outside by this suction dust collector.

The threshed culm is supplied from the transfer chain and the nipping rod to the culm transfer device and taken over, is transferred by this culm transfer device and is supplied to the culm cutter, and the cutting blade of the culm cutter and the rotary teeth In the dust removing device of the threshing machine in which the waste culm is fed in and cut to a predetermined length and discharged to the outside of the machine, the waste culm to be cut is supplied to the culm cutter in a bent state. Or, when the sharpness of the cutting edge is deteriorated, the culm may be wound around the rotary tooth. When this wrapping occurs, the wound culm makes contact with the rear end of the dust case that is close to the rotary tooth. In some cases, this dust case may be deformed, or the side frames on both the left and right sides of the culm cutter may be deformed, making it impossible to perform threshing work.

Means for Solving the Problems The present invention is directed to the rear side of a suction dust collector (2) that communicates with the rear end of a threshing sorting chamber (1) to suction dust, and the upper side of the suction dust collector (2). The culm cutter (4) which receives the supply of the culm transferred by the culm transfer device (3) provided in the cutting device and cuts it into a predetermined length and discharges the culm side with the width of the suction dust collector (2). At a position closer to the exhaust cutter (4) at the rear end portion of the dust case (5) which is provided wider than the suction dust collector (2) and covers the upper side of the suction dust collector (2). The dust removing device of the thresher is provided with a reinforcing member (8) connected between the side frames (6) and (6) and the side frame (7) outside the tip side.

Effect of the invention The grain culm is threshed while being transferred in the threshing chamber, and the threshed grain and the straw waste generated during the threshing process are supplied to the rocking sorting shelf in the threshing sorting room (1). The rocking sorting rack separates and sorts into grains and straw waste during rocking transfer, and the separated grain is wind-selected during leakage from the rocking sorting rack, and the wind-selected grains are sent out of the machine. Discharge. In addition, a suction dust collector for the separated straw waste (2)
, And guide it through the dust case (5) and discharge it to the outside of the machine.

The threshed culm is supplied to the culm transfer device (3) and taken over, transferred by the culm transfer device (3) and supplied to the culm cutter (4), and the culm cutter (4) is cut. The blade and the rotary tooth feed the feed culm and cut it to a predetermined length and discharge it outside the machine.

EFFECTS OF THE INVENTION According to the present invention, the threshed culm is cut off at the rear end of the dust case (5) that covers the upper side of the suction dust collector (2) that sucks dust from the straw produced during the threshing process. The left and right side frames (6) and (6) of the suction dust collector (2) and the suction dust collector (2) at a position close to the waste culm cutter (4) to be processed.
The rear end of the dust case (5) is provided by providing a reinforcing member (8) connecting between the tip side outer side frames (7) of the culm cutter (4) wider than the width. The rigidity of the parts is increased, and the left and right side frames (6), (6) and the side frame (7) are integrally configured by the reinforcing member (8), so that the left and right side frames (6) are , (6) and the side frame (7) have been increased in rigidity, the culm is wound around the rotary teeth of the culm cutter (4), and the sharpness of the cutting blade of the culm cutter (4) is improved. Even if it falls, the dust case (5)
Also, the side frame (7) of the culm cutter (4) is not deformed.

Example In the illustrated example, the threshing machine (9) has a threshing chamber (2
9) is deformed, and in this threshing chamber (29), a front side frame (12) is rotatably provided with a handling cylinder (11) provided with handling teeth (10) on the outer peripheral surface for threshing the culms in the front-rear direction. And a middle side frame (13) are pivotally supported, the front side frame (12) is provided with a supply port for supplying grain culms, and the middle side frame (13) is provided with a discharge port for discharging grain culms. ,
Side frames (6) and (6) are provided on both the left and right sides of the handling cylinder (11), and the right frame (6) has an opening through which a grain culm passes,
On the upper and lower sides of this opening, a clamping rod (3
0) and a transfer chain (31) are provided, and the grain culms being sandwiched and transferred are threshed by the handling teeth (10). The handling tooth (10)
A leak net (14) is provided in the front-rear direction of the lower peripheral part of the straw, and the straw generated during the threshing process is provided between the middle frame (13) and the rear end of the leak net (14). Forming a discharge port (15) for discharging waste,
A rotatable suction dust collector (2) for sucking and discharging straw waste is pivotally supported by the left and right side frames (6) and (6) on the rear side of the handling barrel (11) on the grain transfer side. On the upper side of the suction dust collector (2), a mountain-shaped dust casing (5) is provided on the left and right side frames (6),
It is provided between (6), and a circular lower dust case (16) is provided on the lower side, and a front side portion formed between the lower dust case (16) and the dust case (5). Dust inlet with opening (17)
And the dust outlet (18) is formed at the opening at the rear end.

A culm cutter (4) is provided on the rear side of the suction dust collector (2), and the culm cutter (4) has front rotary teeth (19) and cutting blades (20) that rotate in opposite directions to each other. However, the rotary teeth (19) and the cutting blade (20) are located on the left and right side frames (7),
(7) is pivotally supported, and the left frame (7) is configured to project outwardly from the left frame (6) that pivotally supports the suction dust collector (2). ) The width of the culm cutter (4) is wider than its width, and the inner wall of the right frame (6) is located at a position close to the culm cutter (4) at the rear end of the dust case (5). A connecting member (8) for connecting an inner wall portion of the left side frame (7) through the left side frame (6)
The left and right side frames (6), (6) and the left side frame (7) are integrally reinforced to reinforce the dust case (5) at the same time.

In the threshing sorting chamber (1) below the leakage net (14), swing sorting for feeding and sorting the grains and straw waste while separating and sorting the grains and straw waste. The shelf (21) is installed in the front-back direction,
A transfer plate (22) having a side-view corrugated transfer corrugated strip is provided at the front part of the bottom surface of the rocking selection shelf (21), and a selection screen (23) is provided at the rear part of the transfer screen (23). On the upper side, a rack fin (24) and a sieve line (24) and a sieve line which receive the straw chips discharged from the discharge port (15) and separate and sort the grains mixed in the straw chips and the branches adhering to the straw chips and the straw chips ( 34) is provided.

A blower (25) for wind-selecting grains leaking from the sorting net (23) is provided below the rocking sorting shelf (21).
5) On the rear side is provided a grain collecting gutter (26) provided with a transfer spiral for receiving and transferring the wind-selected grains, and the transfer spiral of the wind-selected grains transferred to one side is provided. A grain raising device (27) that receives the supply and discharges to the outside of the machine is provided, and the grain and the branch adhering grains falling from the end of the rocking sorting shelf (21) are provided on the rear side of the grain collecting gutter (26). A second collecting grain gutter (28) provided with a transfer spiral for receiving and transferring is provided, and the grain and branch stem transferred to one side by the transfer spiral of the second collecting grain gutter (28). The second treatment device (32) is provided which receives the supply of the adhered particles and returns the particles into the threshing chamber (29).

An culm transfer device (3) for sandwiching and transferring the culm is provided on the upper side of the exhaust passageway shelf (33) above the suction dust collector (2), and the sandwiching rod (3) is used by the culm transfer device (3). 30) and the transfer chain (31) sandwich and transfer the culms, which are transferred by the culm transfer device (3) and supplied to the culm cutter (4).

The grain culm clamped by the transfer chain (31) and the clamping rod (30) is supplied into the threshing chamber (29) from the supply port of the front frame (12), and is transferred in the threshing chamber (29). Threshing treatment is carried out by the handling teeth (10) of the rotating drum (11), and the threshed culm is discharged through the culm outlet of the middle frame (13), and the transfer chain (3
1) and the clamping rod (30) supply the culm transfer device (3) to take over, and the culm transfer device (3) transfers the culm cutter (4) to supply the culm. Rotary teeth (19) and cutting edge (20) that drive the cutter (4) to rotate
The supply and discharge culms are taken in and cut into a predetermined length and discharged to the outside of the machine.

Threshed grains leak through the leak net (14) and are supplied onto the transfer plate (22) of the rocking sorting shelf (21), and the straw waste generated during this threshing process is discharged through the discharge port (15). ) From the oscillating sorting shelf (21) to the rack fins (24), and the oscillating sorting shelf (21) oscillates and transfers the threshed grains on the transfer plate (22). It is leaked from the sorting net (23), and the grains in the leak are wind-selected by the wind generated by the blower (25) and supplied to the grain collecting gutter (26). It is transferred to and discharged from the grain harvesting device (27) through the grain collecting trough (26) by the transport spiral in the inside of the grain raising device (27), and the wind-selected grains are fried and discharged to the outside of the machine. To do.

The straw scraps supplied to the rack fins (24) are separated and sorted into the grains mixed in the straw scraps and the branches adhering particles and the straw scraps while swingingly transferred on the rack fins (24). The separated and sorted grains and the branches adhering grains are supplied from the tip of the rack fin (24) into the second grain collecting gutter (28), and transferred into the second grain collecting gutter (28). This second collection gutter with a spiral (2
After passing through 8), it is transferred into the second treatment device (32) and discharged, and in this second treatment device (32), the grains and the branches adhering to branch shoots are returned to the threshing chamber (29) and treated again. Further, the separated and sorted straw waste is guided by the sieve line (34) and is sucked through the dust suction port (17) by the rotation drive of the suction dust collector (2), and the dust discharge port (18).
Discharge more out of the machine.

The left and right side frames (6), (6) that pivotally support the suction dust collector (2) and the side frames (7) that pivotally support the exhaust culm cutter (4), the reinforcing member (8). Since the left and right side frames (6), (6) and the side frame (7) are integrally formed by connecting with each other, the dust can be reliably discharged.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG.
FIG. 2 is a cross-sectional view taken along the line AA of FIG. 2, and FIG. In the figure, reference numeral (1) is a threshing sorting chamber, (2) is a suction dust collector,
(3) is a culm transfer device, (4) is a culm cutter, (5)
Is a dust case, (6) is a left and right side frame, (7) is a side frame,
(8) shows a reinforcing member.

Claims (1)

[Claims] 1. A culm transfer device provided on the rear side of a suction dust collector (2) communicating with the rear end of a threshing sorting chamber (1) for sucking dust, and above the suction dust collector (2). A culm cutter (4) which receives the waste culm transferred in (3) and cuts it into a predetermined length and discharges it is provided with this tip side wider than the width of the suction dust collector (2). At the rear end of the dust case (5) covering the upper side of the dust collector (2) and at the position near the dust cutter (4), the left and right side frames (6), () of these suction dust collectors (2), A dust removing device for a thresher, which is provided with a reinforcing member (8) that is connected between the portion (6) and the side frame (7) outside the tip side.