JP2833043B2 - Drainer for threshing machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a dust extraction device for a threshing machine, and can be used for a threshing device for a combine.

(Prior Art and Problems to be Solved by the Invention) Threshing husks threshed by a threshing device pass through a culm transfer device that is disposed above a dust extractor that sorts threshing material, and are then crushed by a culling cutter. There is a form of cutting, but in order to achieve a good cutting action, it is desirable to have a substantially horizontal posture when throwing the culm into the culm cutter. However, the culm transfer device moves diagonally backward so that the culm moves from the base of the culm to the tip side, and the clamping position of the culm also moves from the culm side to the tip side. Therefore, when throwing the culm into the culm cutter, there is a disadvantage that the stock side hangs down and the culm cannot be thrown in a substantially horizontal posture. Therefore, a member such as a guide rod for supporting the stock side is provided. However, in such a case, the configuration around the dust collector tends to be complicated.

The present invention, while having a simple configuration, by supporting the root side of the culm at the time of culm transfer,
The object of the present invention is to smoothly guide the transfer of the culm and to insert the culm cutter into the culm cutter in a substantially horizontal posture to perform a good cutting action.

(Means for Solving the Problem) The present invention mounts a threshing device provided with a grain culm transfer device on the body along one side in the front-rear direction of a threshing room equipped with a handling drum, and the rear of the threshing device. A culm transfer device for transferring the threshed culm transferred to the end side by the grain culm transfer device, and subsequently transferring the culm conveyed by the culm transfer device, A culm cutter is provided, a dust extractor for sorting and removing thresh is provided below the culm transfer device, a guide plate is provided on an upper part of the duster, and a threshed waste is provided beside the duster. A stock side machine wall frame having a guide surface for supporting the stock side of the culm is disposed, the transfer start end side of the guide surface is near the end of the grain culm transfer device, and the transfer end side is a discharge culm cutter. Characterized in that it is inclined upward from the transfer start end side to the transfer end side. The configuration of the device.

(Operation) The threshed waste culm threshed by the threshing device is taken over by the waste culm transfer device and transferred diagonally rearward toward the rear tip side. This culm is transported rearward along an upwardly inclined surface of the upper guide plate of the lower dust collector, but the stock base is supported and guided on the guide surface of the stock side machine wall frame. While being transferred on the slope, it is sent to the culm cutter.

(Effects of the Invention) By making the guide surface of the stock side machine wall frame ascending toward the transfer end side, when the culm is transferred by the culm transfer device, the holding position of the culm toward the transfer end side is the tip. Side, so that the root side of the stock is supported and guided so as to push up when the stock side is going to hang down. Cutting with a cutter can be performed.

In addition, since there is no need to provide a special support member on the base side of the culm, the configuration is simple.

(Example) In the illustrated example, the threshing device 1 is provided in a part of the combine, receives the culm transferred and supplied from the reaper, and threshing, and is provided along the outside of the threshing room 4. The spike portion of the cereal culm for nipping and transferring the base of the culm by the cereal culm transfer device 2 is supplied to a threshing room 4 for rotating the handling cylinder 3 around the handling cylinder axis and threshing. Reference numeral 5 denotes a threshing net, which is stretched on the lower periphery of the threshing chamber 4 and has a culm opening 6 at the rear end of the threshing chamber 4. Reference numeral 7 denotes a culm opening funnel that receives threshing grains interposed in the threshed culm discharged from the culm opening 6 and returns the threshing to the inside of the threshing room 4 or to a lower sorting device.

A dust extractor 9 having a cross-flow fan-shaped suction fan 8 mounted therein for transmission rotation is detachably connected to the rear side of the drainage funnel 7, and the suction port 10 is connected to the rear upper side of the sorting device. And the dust discharge port 11 is opened to the rear side. The width of the dust extractor 9 is formed over the entire width of the sorting device at the rear of the threshing device 1, and is continuously provided at the suction port 10. The dust collector 9 has a guide plate 12 on the upper side for slidingly guiding the culm. The front end of the guide plate 12 approaches the rear end of the culm funnel 7 and the front end is inclined forward and downward. It is provided on the surface. The stock machine side machine wall frame 13 of the dust collector 9 has an outer peripheral edge protruding toward the stock machine side as appropriate. The portion corresponding to the upper edge of the circumferential edge is the guide plate 12
Is formed to have an appropriate width as the inclined guide surface 14 along the line.

The culm transfer device 15 includes a chain 18 that extends diagonally between a sprocket 16 inside the rear end of the grain culm transfer device 2 and a sprocket 17 that is located on the tip side of the dust collector 9. ,
It comprises a guide rod 19 provided along the lower side of the chain 18 and the like. The discharged culm discharged by the grain culm transfer device 2 is sandwiched between the guide rod 19 and the chain 18 and transferred to the rear of the tip.

The culm frame 23 is formed in a U-shape from the upper side to the rear side of the culm passage on the base side of the culm, and the front end is formed in the threshing chamber 4.
The rear threshing room frame 20 is connected, and the rear portion is connected to the rear end portion of the dust remover 9. A spike frame 21 connected to the threshing chamber frame 20 is attached to the spike side of the dust collector 9, and an attachment frame 22 connecting the spike frame 1 and the rear of the culm frame 23 is attached to the spike frame 21. It is configured to attach a chain frame on which the chain 18 is stretched.

Also, the mounting portion 23a at the lower rear end of the culm frame 23,
The dust collector 9 is connected to the rear end of the stock side machine wall frame 13. The upper surface of the attachment portion of the culm frame 23 is connected to the rear end surface of the inclined guide surface 14 at the same level or lower than the rear end surface.

When attaching the culm cutter, the culm is attached to the rear side of the dust collector 9 to receive and cut the culm discharged by the culm transfer device 15.

The grain culm supplied to the threshing device 1 is threshed by the rotation of the handling drum 3 while the stem portion of the cereal culm supplied to the threshing device 1 is pinched and transferred. The threshed waste culm is transferred to the terminal end of the grain culm transfer device 2 and sent out from the waste culm opening 6 of the threshing room 4 to the waste culm opening funnel 7 and held between the chain 18 and the guide rod 19. Then, the rotation of the chain 18 causes the handling cylinder 3
With respect to the axial direction (the front-rear direction of the machine), the paper is discharged obliquely behind the tip side (obliquely upper right direction in FIG. 2).

As a result, the base of the culm is located on the inclined guide surface of the dust collector 9.
While being moved to the rear side on the upper side, the culm body is further discharged so as to move obliquely to the front of the body toward the rear of the tip side, and further, the culm frame is discharged from the inclined guide surface 14.
The guide 23 is guided to the upper surface of the mounting portion 23a.

In this way, the root of the strain that is slid and guided on the upper surface of the inclined guide surface 14 is pushed upward at the transfer end, so that when the culm is further supplied to the rear culm cutter, It is possible to reduce the sagging of the root portion and feed the culm body in a substantially horizontal posture along the cutting position of the culm cutter in a parallel manner, thereby performing accurate and stable cutting.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a partial side view and FIG. 2 is a plan view thereof. (Description of Signs) 1 ... Threshing device, 2 ... Grain culm transfer device, 3 ... Handling cylinder, 4 ... Threshing room, 5 ... Threshing net, 6 ... Dummy culm opening, 7 ... Dummy culm opening Funnel, 8… Suction fan, 9… Dust exhauster, 10… Suction port, 11… Dust outlet, 12 …… Guide plate, 13… Stock side machine wall frame, 14 …… Slope guide surface , 15 ... Excretion transfer device, 16 ... Sprocket, 17 ... Sprocket, 18 ... Chen, 19 ... Guide rod, 20 ... Threshing room frame, 21 ... Spike frame, 22 ... Mounting frame, 23 …… Culture frame, 23a …… Mounting part

Continuation of the front page (56) References JP-A-60-138313 (JP, A) JP-A-60-22150 (JP, A) Japanese Utility Model Showa 57-158330 (JP, U) (58) Fields investigated (Int) .Cl. ⁶ , DB name) A01F 12/00-12/60

Claims (1)

(57) [Claims] A threshing device provided with a grain culm transfer device is mounted on an airframe along one side in the front-rear direction of a threshing room equipped with a handling cylinder, and the grain culm transfer device is provided behind the threshing device. A culm transfer device that takes over the threshed culm transferred to the terminal side at the end and transfers it to the diagonal tip rear side, and a culm cutter that cuts the culm transferred by the culm transfer device is provided. A dust collector for sorting and removing thresh is provided below the device, a guide plate is provided on an upper portion of the dust collector, and a side of the dust collector supports a root side of threshed culms. A stock side machine wall frame having a guide surface is disposed, the transfer start end side of the guide surface is near the end portion of the grain culm transfer device, and the transfer end side faces the culm cutter, and the transfer start end side. A dusting device for a threshing machine, characterized in that the slope is made to rise further toward the transfer end side.