JPH0655061B2 - Threshing equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a support structure for a net in a threshing device mounted on a combine, a harvester or the like.

[Conventional technology]

The receiving net of the threshing device is an arc-shaped one that is placed along the lower side of the rotating handling cylinder, and the grain culms are threshed between the receiving net and the handling barrel, and the single-grained grains leak into the receiving net. To go.

In this case, the receiving net is generally fixed in the handling room during the threshing operation.

[Problems to be solved by the invention] When threshing a crop wet with rain or morning dew in a threshing device,
Straws and the like generated by the threshing process are likely to clog the mesh of the receiving net, which may reduce the threshing efficiency and the grain collecting efficiency.

An object of the present invention is to reduce clogging of a net during threshing work as much as possible.

[Means for Solving the Problems]

A feature of the present invention is that the threshing device as described above is configured as follows.

In the arcuate receiving net arranged along the lower side of the handling cylinder,
Each of the front end and the rear end of the net in the direction along the axis of rotation of the handling cylinder is provided with a guided portion obliquely arranged along the outer periphery of the handling cylinder to accommodate the handling cylinder and the net. The fixed portion of the handling chamber is provided with a pair of guide portions that are arranged parallel to the guided portion and obliquely along the outer periphery of the handling cylinder, and by the guide action of the guided portion of the receiving net by the guide portion, The net is supported along the outer circumference of the handling cylinder so as to be reciprocally movable diagonally to the direction of rotation of the handling cylinder, and the net is subjected to forced vibration at a predetermined stroke along the direction of rotation of the handling cylinder. A vibration driving unit is provided, and a linking portion between the vibration driving unit and the receiving net is provided with a flexible portion that absorbs a moving component of the receiving net along the direction of the rotation axis of the handling cylinder.

[Action]

(I) With the configuration according to the present invention, the receiving net vibrates obliquely with respect to the rotation direction of the handling cylinder along the outer periphery of the handling cylinder by the guide portion, the vibration drive portion and the interchangeable portion of the handling chamber. When the net is forcibly vibrated in this way, grains and small straw chips clogging the eyes of the net due to the so-called shaking action fall downward from the net.

In this case, in the present invention, the receiving net vibrates along the rotation direction of the handling cylinder, and at the same time, vibrates in the direction of the axis of rotation of the handling cylinder. As a result, the grains and small straw debris that have clogged the mesh of the receiving net are subject to vibration in multiple directions in the front, rear, left, and right directions, further promoting the fall of the grains and small straw debris from the receiving net. To be done.

(ii) Since the tips of the handle teeth attached to the outer circumference of the handle cylinder pass near the surface of the mesh, the push-out and scraping action of this handle causes the mesh of the mesh near the passage of the handle to pass through. There is less clogging.

In this case, with the configuration of the present invention, the receiving net vibrates along the rotation direction of the handling cylinder, and at the same time, reciprocates in the rotational axis direction of the handling cylinder. If the receiving net reciprocates in the direction of the axis of rotation of the handling cylinder in this manner, the portion of the receiving net where the pushing-out and scraping action of the handling teeth act becomes wider in the direction of the axis of rotation of the handling cylinder, The falling of grains and straw debris that have clogged the eyes of the eye is further promoted.

(Effects of the Invention) As described above, by combining the vibration of the receiving net in a plurality of directions and the pushing action and the scraping action of the handling teeth, clogging of the receiving net during threshing work is reduced, and particularly wetness is achieved. It is possible to improve the threshing efficiency and the grain collecting efficiency in threshing a crop.

Further, by devising a guide portion for supporting the receiving net, the single net vibration driving unit can drive the receiving net in two directions, that is, the rotation direction of the handling cylinder and the axial direction of the rotation axis, which reduces the manufacturing cost. It is also advantageous in terms of aspects.

〔Example〕

Hereinafter, a threshing device that is an embodiment of the present invention will be described with reference to the drawings.

The whole threshing device is configured as follows. As shown in FIG. 6, the grain culm that has been conveyed while being held in a sideways posture by the feed chain (1) has a handling barrel (3) horizontally movably mounted in the handling room (2) in the threshing device. Depending on the handle (3) and the net
Threshed during (4).

Threshed paddy and relatively small straw debris leaks through the net (4) located under the handling cylinder (3), and the swinging sorting frame (5) below.
It falls on the Glen Pan (6) installed on the slab and is sent to the lower side of the Glen Sieve (7) while being sorted by specific gravity due to the oscillating action, and the oscillating action and Kara (8) at the Glen Sieve (7).
By the air blowing action from the paddy, the paddy is leaked and collected in the No. 1 material collecting section (9). Then, the paddy with branch collected in the No. 2 material collecting section (10) is sent to a processing chamber (not shown) from a throw-off type thrower (not shown), singulated and shaken. It is returned to the selection frame (5).

Next, the receiving network (4) will be described. As shown in FIGS. 1 and 2, a net (12) integrally molded with a high molecular weight polyethylene resin is connected to an arcuate net (11) with bolts. As shown in FIG. 1 and FIG. 4, the receiving net of the receiving frame (11) in the direction along the axis of rotation of the handling cylinder (3).
The front and rear ends of (4) (corresponding to both ends in the horizontal direction of the paper) have wedge-shaped rails (13) in plan view with end faces oblique to the direction of rotation of the handling cylinder (3) (guided Is provided on the upper and lower surfaces of the rail portion (13) and a polyethylene resin material (1
4) is attached with a countersunk screw (27).

On the other hand, as shown in FIGS. 1, 3 and 4, the side wall (16) (corresponding to the fixed portion) of the handling chamber (2) surrounds the outer periphery of the handling barrel (3) at an angle and the handling is performed. A guide portion (15) having a wedge shape in plan view having an end surface oblique to the direction of rotation of the body (3) is provided, and the guide portion (15) is provided with a rail portion (1) of the net (4) from above.
3) is inserted, and the receiving net (4) is supported by the guide part (15), so that the receiving net (4) along the outer periphery of the handling cylinder (3) with respect to the rotating direction of the handling cylinder (3). It will be supported so that it can be slid back and forth.

Next, the receiving net vibrating mechanism (17) for forcibly vibrating the receiving net (4) along the guide portion (15) will be described. As shown in FIGS. 2 and 5, a drive arm (18) (corresponding to a vibration drive unit) pivotally supported around a horizontal axis (P ₁ ) on the back surface of the handling chamber (2) so as to be vertically swingable. Is engaged and connected to the back surface of the net frame (11), and an eccentric cam (19) is provided which is driven to rotate around the horizontal axis (P ₂ ) of the handling chamber (2). A ring member (20) is externally fitted to the shaft via a bearing, and a linking rod (21) is provided over the ring member (20) and the drive arm (18).
With the above structure, when the eccentric cam (19) is rotationally driven around the horizontal axis (P ₂ ), the drive arm (18) is rocked up and down,
The net (4) is forcibly vibrated along the guide portion (15) obliquely with respect to the rotation direction of the handling cylinder (3).

As shown in FIG. 5, the drive arm (18) and the net frame (11)
Engagement and connection structure with the left and right sides of the back of the net frame (11)
The connecting pin (23) is attached to the pair of brackets (22) so as to be rotatable and slidable to the left and right, and both connecting pins (23) are biased to the left and right protruding sides by the spring (24), so that both connecting Pin (23)
A bearing (25) is attached to the tip of the.

With the above structure, the receiving net (4) is moved to the drive arm (18) by engaging the bearing (25) of both connecting pins (23) with the tip of the drive arm (18) (corresponding to the structure of the interchange part). Within the range of interchange between the drive arm (18) and the connecting pin (23), the receiving net (4) is in the rotation direction of the handling cylinder (3) and the rotation axis of the handling cylinder (3). It is also vibrated in the core direction.

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 configurations of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a threshing device according to the present invention. Fig. 1 is a plan view of a guide portion of a receiving net and a handling room, Fig. 2 is a side view of the receiving net and a handling room, and Fig. 3 is Fig. 1. View from the direction of III-III in Fig. 4, Fig. 4 is an enlarged sectional view near the rail part of the receiving net,
FIG. 5 is a rear view of the receiving net showing the connecting structure of the receiving net vibrating mechanism and the receiving net, and FIG. 6 is an overall front view of the threshing device. (2) …… Handling room, (3) …… Handling body, (4) …… Receiver net, (13) …… Received part of receiver net, (15) …… Guiding room guide part, (16) …… The fixed part of the handling room, (18) …… Vibration drive part.

Claims (1)

[Claims] 1. An arc-shaped receiving net (4) arranged along the lower side of the handling barrel (3), wherein the receiving net (4) is in a direction along the axis of rotation of the handling barrel (3). Each of the front end and the rear end of the is equipped with a guided portion (13) obliquely arranged along the outer periphery of the handling cylinder (3) to accommodate the handling cylinder (3) and the net (4). A pair of guide portions arranged parallel to the guided portion (13) on the fixed portion (16) of the handling chamber (2) and obliquely along the outer periphery of the handling barrel (3).
(15), by the guide action of the guided portion (13) of the receiving net (4) by the guide portion (15), the receiving net (4) along the outer periphery of the handling cylinder (3). While being supported so as to be reciprocally movable diagonally with respect to the rotation direction of the handling cylinder (3), forced vibration with respect to the receiving net (4) at a predetermined stroke along the rotation direction of the handling cylinder (3). Vibration drive (18)
The vibration drive section (18) and the receiving net (4) are provided with a flexible portion for absorbing a moving component of the receiving net (4) along the direction of the axis of rotation of the handling cylinder (3). Threshing equipment provided.