JPH0620387B2 - Transmission mechanism of rocking sorter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a belt transmission mechanism of an oscillating sorting device equipped in a thresher, and more specifically, to a drive pulley axially supported by the machine body. And a driven pulley that is interlocked with the eccentric shaft of the swing selecting device, and a tension that allows swinging around a shaft center in the same direction as the drive shaft center near the drive pulley. An arm is provided, and a tension pulley is rotatably supported on the free end side of the tension arm, and a spring that connects the tension arm and the machine body fixing portion is used to press the tension pulley against the outer peripheral surface of the belt. The present invention relates to a belt transmission mechanism of a dynamic sorting device.

[Conventional technology]

When threshing a wet grain, or when changing the type of threshing treatment product, the threshing treatment product may become clogged in the threshing device, or different types of threshing treatment products may be mixed. It becomes necessary to carry out a cleaning operation for removing the threshing-treated product together with dust and the like.

Therefore, when performing the cleaning operation, after opening the cleaning port provided on the side of the threshing device, blow the inside of the cleaning port, in particular, the rocking sorting device provided with the grain sieve, the Glen pan, the Straw rack, etc. with air. I was doing cleaning work.

However, since the rocking sorter supports a grain pan, a straw rack, or the like that has a severely uneven shape, a threshing treatment product attached to the rocking sorter can be obtained only by performing the cleaning work as described above. It was difficult to efficiently remove dust with dust.

Therefore, conventionally, it has been considered to make it possible to easily remove the rocking / sorting device from the threshing device at the work site so as to facilitate the cleaning work.

[Problems to be solved by the invention]

In order to remove the rocking / sorting device from the threshing device, first, it is necessary to loosen and remove the belt wound around the drive pulley and the driven pulley.

To do this, remove one end of the spring that connects the tension arm and the machine body fixing part in a tensioned state to allow the tension arm to freely swing, and then release the tension urging state of the tension pulley against the belt outer peripheral surface. It was necessary to support the contraction force of the spring, and it was troublesome.

The present invention has been made in view of such an actual situation, and an object thereof is swing selection from a threshing device by facilitating removal of a belt wound around a drive pulley and a driven pulley. The purpose is to make it easier to remove the device.

[Means for solving problems]

A characteristic configuration of the present invention for achieving the above object is to provide a tension arm with an operation link capable of swinging about an axis in the same direction as the arm axis, and support one end of the spring at the tip side of the operation link. At the same time, the belt pressing biased state is maintained at one side end of the swing range of the operation link, and the belt pressing biased state is released at the other side end of the swing range, and The point is that an operation lever that can be rocked in the same direction as the operation link is provided.

[Work]

According to the above configuration, when removing the belt, first, the operation lever is rocked with respect to the tension arm to move the tip of the operation link in the direction opposite to the direction in which the tension pulley presses and urges the belt. Swing to one end of the swing range. When the operation link reaches the one end of the swing range, the spring loosens and the tension arm can swing relatively freely. Furthermore, if the operation lever is moved in the same direction from this state, the operation lever swings integrally with the tension arm,
The belt pressing and urging state by the tension pulley is released.

That is, the belt urging state can be released without removing the spring by one operation in the direction of operating the operation lever toward one end of the swing range of the operation link.

〔The invention's effect〕

As a result, the belt can be easily removed, and the swing sorting device can be easily removed from the threshing device. Especially when cleaning at the work site, it has become possible to finish quickly.

〔Example〕

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

As shown in FIG. 4, a handling cylinder (2) which is driven and rotated is provided in a handling room (A) having a receiving net (1) forming a lower wall, and
A feed chain (3) for sandwiching and transporting the grain culm plant tip with the grain culm tip part inserted in the handling room (A) was provided, and it was configured to handle the cut grain culm sequentially supplied. , And then
The threshing device according to the present invention is configured by providing a waste straw chain (4) for supplying the waste straw after the treatment processing to the waste straw processing device such as a shredder cutter and a binding device.

Then, the threshed products falling through the receiving net (1) and the threshed products discharged from the dust delivery port (1a) opened at the rear end of the handling chamber (A) are conveyed backward. Meanwhile, an oscillating sorting device (B) for sorting is provided from below the handling chamber (A) to the rear.

In addition, as shown in FIGS. 1 to 3, this rocking sorting device (B) swings the threshing processed material leaked from the receiving net (1) and sorts the threshing processed material to sort it. The Glen Sieve (5), the Glen Pan (6), and the two-stage Straw rack (8) are installed between a pair of left and right swing selection frames (7). And the swing selection frame (7)
With respect to the machine wall (C) of the threshing / sorting device, through a roller (13) that serves as an engagement guide member (D) on the swing sorting frame (7) side, which will be described later, in the front part, and in the rear part, an eccentric shaft ( Each of them is supported via a shaft 14), and is oscillated by rotating the eccentric shaft (14).

Further, below the swing sorting device (B), the first item recovery section (9) for collecting and carrying out the first item leaking through the mesh of the Glen sieve (5) and the Glen sieve (5). A second object recovery section (10) for recovering fallen objects falling over the respective rear end portions and returning them to the handling chamber (A) is arranged in the front and rear. Furthermore, a Kara-mino (11) is provided to feed the sorting air toward the Glen Sieve (5) and the Straw Rack (8), and dust and Straw Rack (8) that have passed through the Glen Sieve (5) by the sorting wind by the Kara-Mino (11) are provided. The small dust and the like passing through is blown back, and the dust floating in the sorting section is sucked and discharged to the outside of the apparatus by the cross flow fan (12) provided at the rear.

Then, as shown in FIG. 2, the swing selection frame (7) is provided on the front end of the swing selection frame (7) and on the inner surface of the front part of the machine wall (C).
Engagement guide member that guides the front part of the front and rear to the rear along a predetermined path and allows the swing selection frame (7) to be pulled out to the rear.
(D) is provided for each. Specifically, the lower surface of the front end portion of the swing selection frame (7) is provided with a roller that is rotatable left and right.
While the (13) is mounted, a guide rail (15) having a U-shaped drop-in portion (15a) having an upper surface opening at the front end is mounted on the left and right on the inner surface of the front portion of the machine wall (C), Drop-in section
The rocking sorting frame (7), which is set at a fixed position with the roller (13) dropped into the (15a), has its front portion, that is, the roller (1).
When 3) is engaged and guided by the guide rail (15), it can be easily moved in the front-rear direction and can be pulled out backward easily.

In addition, as shown in FIG. 1, at the rear end of the swing selection frame (7), the eccentric shaft (16) supported by a bearing (16) that can be disconnected from the machine wall (C). 14) is attached. Specifically, the front half (16a) of the bearing (16) is attached to the left and right of the open rear end of the machine wall (C), and the upper half (16a) is attached to the upper half. The latter half (16c) of the bearing (16) that can swing up and down with the pivot (16b) as the swing fulcrum is connected, and the bearing (16) that is connected to the machine wall (C) By swinging the latter half body (16c) of the
6) is released from the machine wall (C).

A belt transmission mechanism (E) for driving is provided on the lateral side of the swing selecting device (B). The belt transmission mechanism (E) winds a belt (V) around a drive pulley (17) axially supported on the lateral side of the machine wall and a driven pulley (18) attached to an eccentric shaft (14). Further, a tension arm (19) which is swingable around the axis of the drive pulley (17) is provided, and a tension pulley (20) is pivotally supported at the tip of the tension arm (19). is there. In addition, an operation link (2) that can swing around the axial center in the same direction as the eccentric shaft (14) is attached to the tip of the tension arm (19).
1) is installed and the tip of the tension pulley (20) is connected to the adjustment bolt (22) fixed to the machine body by the spring (23).
Is pressed against the outer peripheral surface of the belt to give the tension required for transmission.

At the other end of the swing range of the operation link (21), that is, at the swing end toward the driven pulley (18), the extension of the spring (23) increases, and the tension pulley (20) prevents the belt from being pressed. The spring (23) is completely loosened so as to be held, and at one end of the swing range of the operation link (21), that is, at the swing end toward the drive pulley (17), the tension arm (19) Is designed so that it can freely swing. Then, from this state, when the operation lever (24) integrally connected to the shaft of the operation link (21) is moved to the drive pulley (17) side, the operation lever (24) moves together with the tension arm (19) around the drive shaft core. The belt oscillates to release the belt pressing bias state.

When the belt pressure urging state is released, the belt (V) becomes loose and can be easily removed. Belt (V)
When installing, the procedure is the reverse of the above.

As shown in FIG. 3, the rear side plate (25) of the handling chamber (A) is extended laterally outward, the tip of which is bent rearward, and the bent portion thereof.
The opening / closing lever (29) is supported by (25a) and a bracket (26) fixed to the rear side plate (25). An operation piece (27) is fixed to the base end of the opening / closing lever (29), and the operation piece (27) has a door (9a) and a second object of the first object recovery section (9). A link mechanism (28) for simultaneously opening and closing the door (10a) of the recovery section (10) is linked.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the external drawing.

[Brief description of drawings]

The drawings show an embodiment of the power transmission mechanism of the rocking / sorting device according to the present invention. FIG. 1 is a side view, FIG. 2 is a perspective view of the rocking / sorting device, and FIG. The figure which shows the opening / closing structure of the door of a thing recovery part, FIG. 4 is a vertical side view of a threshing apparatus. (14) …… eccentric shaft, (17) …… drive pulley, (18) …… driven pulley, (19) …… tension arm, (20) …… tension pulley, (21) …… operation link, (23 ) …… Spring, (24) ……
Operating lever, (B) …… Swing selection device, (V) …… Belt.

Claims (1)

[Claims] 1. A drive pulley (17) axially supported by a machine body, and a driven pulley which is interlockingly connected to an eccentric shaft (14) of a swing selecting device (B).
A belt (V) is wound around (18) and the drive pulley (1
A tension arm (19) that can swing around the axis in the same direction as the drive axis is provided near (7), and a tension pulley (20) is pivotally supported on the free end side of this tension arm (19). However, a spring (23) that connects the tension arm (19) and the machine body fixing part is a belt transmission mechanism of the swing sorting device in which the tension pulley (20) is pressed and urged to the outer peripheral surface of the belt. The tension arm (19) is provided with an operation link (21) swingable around the axis in the same direction as the arm axis, and one end of the spring (23) is supported at the tip end side of the operation link (21). In addition, the belt pressing biased state is maintained at one end of the swing range of the operation link (21), and the belt pressing biased state is released at the other end of the swing range. And the operation lever (24) that can be rocked in the same direction in conjunction with the operation link (21). Only by Aru transmission mechanism swing sorting device.