JPH068672Y2 - Threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a threshing device mounted on a combine, a harvester or the like, and more particularly to a support structure for a net.

[Conventional technology]

The receiving net is an arc-shaped one arranged 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 through the receiving net. During the threshing operation, this receiving net is generally fixed in the handling room.

[Problems to be solved by the invention]

In the threshing device, many grain culms are vigorously threshed between the handling room and the net, so even if crushed grains or small straw chips are returned, it is easy for the net to get caught in the net. This has led to a reduction in threshing efficiency and grain collection efficiency.

Here, the present invention focuses on the above-mentioned problems, and an object thereof is to obtain a support structure for a net which can minimize clogging of the net during threshing work.

[Means for solving problems]

The feature of the present invention is that, in the threshing device as described above, a net which is arranged along the lower side of the handling cylinder is formed by stretching a resin net inside an arc-shaped metal net frame. A guide is provided inside the handling chamber to support the receiving net frame from below and to guide the receiving net so as to be movable along the circumferential direction of the handling barrel, and the receiving net can be set along the guide at a set stroke. A receiving net vibration mechanism for forcibly vibrating is provided, and a floating prevention member for suppressing the floating of the receiving net from the guide is arranged in a state of being substantially in contact with the surface of the resin net from the inner side of the receiving net, and Both ends of the net made of resin are extended in the axial direction of the handling cylinder to form abutting parts, and the abutting parts are brought into contact with the fixed parts of the handling chamber to shift the position of the receiving net in the axial direction of the handling cylinder. The action and effect are as follows.

[Action]

As described above, when the net is forcedly vibrated in the circumferential direction of the handling cylinder, the so-called shaking effect causes grains and small straw debris clogging the eyes of the net to fall downward. The lifting of the receiving net from the guide is suppressed by the contact between the lifting prevention member and the resin net, and the receiving net is handled by the abutment part extended from this net and the fixed part of the handling chamber. Positional deviation in the axial direction of the body axis can be suppressed. In this case, metal (floating prevention member and fixed part of the handling room)
And the resin (the surface of the receiving net and the extended contact portion) are brought into contact with each other, and the weight of the receiving net and the threshing load acting on the receiving net are supported by the guide on the side of the handling chamber. Although it is in an atmosphere in which fine straw debris flies around, smooth sliding can be performed at the contact portions of the two sets without particularly using lubricating oil or the like.

[Effect of device]

As described above, by vibrating the receiving net, clogging of the receiving net is reduced and threshing efficiency and grain collection efficiency are improved. Further, by making a slight modification to the shape of the net and effectively utilizing the properties of the resin, a rattling prevention structure for the net which is easy to maintain can be obtained, and the net can be smoothly vibrated.

〔Example〕

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

The whole threshing device is configured as follows. That is,
As shown in FIG. 6, the grain culms that have been conveyed by being pinched by the feed chain (1) in a sideways posture are in the handling room in the threshing device.
Threshing is performed between the handling barrel (3) and the net (4) by the handling barrel (3) which is horizontally driven by (2). Threshed paddy and relatively small straw debris leaked through the net (4) located under the handling barrel (3), and the gren pan (6) was installed on the lower swing sorting frame (5). )
It drops on the upper side, and due to its swinging action, it is sent to the lower-side Glen Sieve (7) while being sorted with specific gravity, and then sent to the Glen Sieve (7).
Above, the paddy is leaked and collected by the No. 1 material collecting section (9) by the rocking action and the blowing action from the Kara (8). And 2
The rough rice with branches collected in the number collecting part (10) is sent to a processing chamber (not shown) from a throw-off type thrower (not shown), and is singulated into particles, and a rocking sorting frame (5) It is returned to the top.

Next, the receiving net (4) will be described in detail. As shown in FIG. 1, a pin (28) and a bracket (29) connectable to each other.
It has a structure in which a net (12) integrally molded with high molecular weight polyethylene resin is connected to a pair of metal arcuate net frames (11) with bolts (27), and a plurality of nets on the left and right of the net frame (11) are connected. Rollers (13) are installed in place. More specifically, as shown in FIGS. 1, 4, and 5, the portion in which the bolt (27) is embedded is extended from the net frame (11) to the left and right to form the contact portion (12a). -ing

On the other hand, the side wall (16) of the handling chamber (12) is provided with a guide (14) for supporting the receiving net (4). The structure will be described in detail with reference to FIGS. 1 and 4. As shown in FIG. 4, this guide (14) has a substantially L-shaped cross section like a bent plate material, and has a length substantially the same as the circumferential length of the receiving net (4). It is fixed to the side wall (16) through the auxiliary guide of the.

With the above structure, when the receiving nets (11) are connected to each other and inserted into the guide (14) from above, the roller (13) rides on the guide (14) and the receiving net (4) is moved as shown in FIG. It becomes movable in the circumferential direction, and the inner surface of the auxiliary guide (15) and the net (12)
The contact with the upper surface of the net prevents the lifting of the net (4) from the guide (14). In addition, the roller (13) and guide (1
4) Spacing (A) to the mesh (12) contact part (12a) and auxiliary guide
The distance (B) from the (15) is set to a small value, and the contact between the abutment part (12a) and the auxiliary guide (15) causes the displacement of the net (4) in the axial direction of the handling cylinder (3) axis. Is prevented. Also, the roller
(13) is a roller having a constant interval (C),
The distance (A) between the guide and the guide (14) is set so that 2A <C.

Next, a detailed description will be given of the net vibrating mechanism (17) for forcibly vibrating the net (4) within the above range. As shown in FIGS. The drive arm (18) pivotally supported around the axis (P ₁ ) is engaged and connected to the back surface of the net frame (11), and the horizontal axis (P ₂ ) An eccentric shaft (19) is provided which is driven to rotate around the eccentric shaft (19).
A ring member (20) is externally fitted to the bearing via a bearing, and a linking rod (21) is installed between the ring member (20) and the drive arm (18). With the above structure, when the eccentric shaft (19) is rotationally driven around the horizontal axis (P ₂ ), the drive arm
The net (4) is oscillated, and the receiving net (4) is forcibly vibrated along the guide (14).

As shown in FIG. 3, the engaging and connecting structure between the drive arm (18) and the net (11) is connected to the left and right brackets (22) on the back of the net (11) by connecting pins (23). Is attached slidably to the left and right, and both connecting pins (23) are
The bearing (25) is attached to the tips of both connecting pins (23) by being urged to the left and right protruding sides by 4). With the above structure, the connecting pin (23) is slid and the bearings (25) of both connecting pins (23) are engaged with the tip of the drive arm (18), so that the receiving net (4) is moved to the drive arm. It is connected to (18).
Then, remove the tool rest (26) and pull out both connecting pins (23) from the drive arm (18) to remove the net (4) from the tool rest.
It can be pulled out from the (26) side.

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

[Brief description of drawings]

The drawings show an embodiment of the threshing device according to the present invention. Fig. 1 is a perspective view of a receiving net and a guide for supporting the receiving net, Fig. 2 is a side view of the receiving net attached to a handling chamber, FIG. 3 is a rear view showing the connecting structure of the net and the net vibrating mechanism, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2, and FIG. A plan view and FIG. 6 are overall front views of the threshing device. (2) …… Handling room, (3) …… Handling body, (4) …… Receiving net, (11) …… Receiving frame, (12) …… Resin net, (12a) …… Reception Part, (14) …… guide, (15) …… lifting prevention member, (17) …… receiver net vibration mechanism.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsu Ando 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Works (72) Inventor Yoshitada Nakamura 64, Ishizukitamachi, Sakai City, Osaka Kubota Iron Works Co., Ltd. Sakai Factory

Claims (1)

[Scope of utility model registration request] 1. A receiving net (4) arranged along the lower side of the handling cylinder (3).
Is formed by stretching a resin net (12) inside an arcuate metal net net frame (11), and the net net (4) supporting the net frame (11) from below. A guide (14) is provided inside the handling chamber (2) for guiding the movable body along the circumferential direction of the handling barrel (3), and
A lift preventing member for suppressing the lift of the receiving net (4) from the guide (14) while providing a receiving net vibrating mechanism (17) for forcibly vibrating the receiving net (4) along the guide (14). (15) is arranged in a state of being substantially in contact with the surface of the resin net (12) from the inside of the receiving net (4), and both ends of the resin net (12) in the axial direction of the handling cylinder axis. The part to extend the contact part (12
A threshing device in which a) is formed, and the contact portion (12a) is brought into contact with the fixed portion of the handling chamber (2) to suppress the positional deviation of the receiving net (4) in the direction of the handling barrel axis.