JPH0637644Y2 - Thresher receiving net - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a synthetic resin net used for a threshing device mounted on a combine, a harvester or the like.

[Prior Art] Conventionally, as a net made of a synthetic resin material, for example, as shown in Japanese Utility Model Publication No. 36-15021 and Japanese Utility Model Publication No. 54-14964, a grid-like mesh is integrally formed. Resin-molded products are known.

[Problems to be solved by the invention]

Unlike a crimp net made by knitting a metal wire rod, a resin-molded net has no gaps at the intersections of vertical and horizontal wire rods, so it is difficult for bite debris to bite into it and to corrode it. It has a good aspect that it is difficult to cause In addition, when threshing wet crops, the metal net has a low water repellency, so that wet straw scraps adhere to the net and stick to the net, causing clogging early. In addition, the resin net has the characteristics that it is water-repellent, has good lubricity, and does not allow wet straw dust to adhere to the surface. It has the advantage that clogging is less likely to occur and threshing work of wet crops is also strong. .

On the other hand, there is a problem in wear resistance and rigidity.Compared with the net because of the abrasion when the grain and the processed material are strongly rubbed against the net surface by the handling cylinder with the resin material, the damage due to impact, etc. It becomes necessary to replace it within a very short period of time, and there was a problem in practical use of the resin net in this respect.

Therefore, in the present invention, in view of the request to be able to thresh a wet crop, in the plastic field, focusing on the fact that a polymer resin material having excellent water repellency, lubricity and abrasion resistance has been commercialized, We have started the development of a resin net.

As a result of research, there is a restriction that the vertical and horizontal lattice members that make up the mesh cannot be unnecessarily thick because it is necessary to secure a certain leakage area, and the threshed material can be handled along the circumferential direction of the handling cylinder. Since it is dropped and carried around, the wear of the lattice member in the direction along the circumferential direction from the direction along the axial direction of the handling cylinder,
It was found to be severely damaged, which shortens the life of the entire receiving network.

The present invention has a shape that does not adversely affect threshing performance while ensuring a certain leakage area, improves the life of the whole receiving net, and takes advantage of the characteristics of resin material that is excellent in water repellency and lubricity. The purpose is to commercialize a resin net that is highly resistant to threshing of wet crops and has high wetting performance.

[Means for solving problems]

A feature of the present invention is that a mesh is formed by a horizontal lattice member arranged in a direction along the axis of rotation of the handling cylinder and a vertical lattice member arranged in a direction orthogonal to the axis of rotation of the handling cylinder. The receiving nets are formed of synthetic resin, and the width of each mesh portion in the direction along the circumferential direction of the handling cylinder of the horizontal grid member is larger than the width in the direction along the rotation axis of the handling cylinder of the vertical grid member. The width is set to be large, and its action and effect are as follows.

[Action]

As the handling cylinder rotates, the workpiece in the handling chamber moves along the longitudinal direction of the vertically oriented grid member of the net, so that the surface of the vertically oriented lattice member facing the handling cylinder is continuously slid on the workpiece. As a result of the contact, the laterally-oriented lattice members collide with each other and slide against each other in a state where the workpieces cross each other. Therefore, in each mesh portion, the horizontally-oriented lattice members are vertically oriented lattice members. Wear per unit time is faster than that.

Here, the width of each mesh portion in the direction along the circumferential direction of the handling cylinder of the lateral lattice member with rapid wear progress is the width in the direction along the rotational axis of the handling cylinder of the vertical lattice member with slow wear progress. By setting the net width wider than the above, the life of the whole net can be extended without reducing the leakage opening ratio of the net, as compared with the case where both lattice members are set wide.

In addition, it is possible to take advantage of the excellent water repellency and lubricity of the surface, which are the characteristics of synthetic resin materials, and even when threshing a wet crop, it is difficult for wet straw chips and leaves to adhere and clogging. Is suppressed and leakage performance is good.

[Effect of device]

As described above, according to the present invention, by improving the threshing performance by molding the receiving net with a synthetic resin material that has excellent grain leakage performance and is effective in suppressing clogging due to the adherence of straw chips and the like. In addition to being able to demonstrate high processing capacity even during wet threshing, and by reasonably setting the grid specifications of the receiving net, the preceding wear of the lateral grid member
The life of the entire receiving network could be improved and the receiving network could be used for a long time without replacing the receiving network early due to breakage, and it was possible to obtain a practically effective receiving network.

〔Example〕

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

FIG. 5 shows a threshing device mounted on a combine, which is provided with a feed chain (2) for holding and transporting cut culms on the outer side of the case part (1), and the threshing device of the case part (1). In the handling chamber (A) formed above the inside, the harvested grain supplied to the handling chamber by the feed chain (2) by rotating around the axis (P) along the longitudinal direction of the vehicle body of the combine. A handling cylinder (3) for treating the culm is provided, and a catching net (4) for filtering grain shattered by the handling action of the handling cylinder (3) is provided below the handling chamber (A). Under the receiving net (4), an oscillating sorting mechanism (5) for sorting the processed products from the handling room (A), a sardine lees (6) for sending sorting air, and an oscillating sorting mechanism (5). No. 1 screw (7) that collects the grains that have been sorted in step No. 2 that collects the processed products from the swing sorting mechanism (5) A processing chamber (not shown) provided with each of the clews (8) and formed in parallel with the handling chamber (A) rotates like a handling barrel (3) around a longitudinal axis. A lowering mechanism (10) provided with a shell (9), and between the processing chamber and the second screw (8), the processed product collected by the second screw (8) is sent to the processing chamber.
Is equipped with.

In the threshing device, the receiving net (4) is manufactured by integrally molding a high molecular weight polyethylene material, and its structure will be described in detail below.

As shown in FIG. 4, the receiving net (4) is attached to each of the frames (11) and (12) that are separable into upper and lower members formed in a shape along the rotation trajectory of the handling cylinder (3), and the upper side In addition to the receiving net (4), a punching metal (13) is attached to the frame (11) of the above, and a reduction opening (C) for sending the reprocessed material from the processing chamber to the handling chamber (A). ) Has been formed.

Further, the receiving net (4) attached to the lower frame (12)
Is a vertical lattice member (4A) directed in a direction orthogonal to the axis of rotation (P) of the handling cylinder (3) as shown in FIGS. 1 to 4.
And a lateral grid member (4B) directed in a direction along the axis of rotation (P) of the handling cylinder (3) form a mesh (4F), and the mesh (4F) is traversed vertically and horizontally. Fixing parts (4C), (4C) wider than the lattice members (4A), (4B) are integrally formed with the receiving net (4) with the same thickness as the lattice members (4A), (4B). At the upper and lower edges of the receiving net (4), the thickness (T ₂ ) is set to be larger than the thickness (T ₁ ) of the lattice members (4A) and (4B), and screw fastening portions are set. (4D), (4
D) is formed, and the heads of the screws (14) are sunk into the screw fastening parts (4D) and (4D) when the upper and lower edges of the receiving net (4) are attached to the frame (12). A large number of through holes (15) having step portions (15a) for making holes are formed, and the receiving nets (4) are also provided at the fixing portions (4C), (4C) and the front and rear edge portions of the frame ( A large number of through holes (17) are formed in which the screws (16) attached to the (12) are inserted.

Further, the vertical lattice member (4A) and the horizontal lattice member (4B) are both formed to have the same thickness, and the handling cylinder side is formed to have protruding curved surfaces (4t) and (4t), respectively. The circumference of the handling cylinder (3) of the horizontal lattice member (4B) is larger than the width (D) of the vertical lattice member (4A) in the mesh portion of the handling cylinder (3) in the direction along the rotation axis (P). By setting a large width (E) in the direction along the direction, the life of the receiving net (4) is improved.

Further, support frames (18), (18) for reinforcing the receiving net (4) from the side opposite to the handling cylinder are attached to the frame (12), and
Bow-shaped projections (4E) and (4E) are integrally formed on the handling cylinder side of the receiving net (4) by setting the shape as shown in FIG.

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]

FIG. 1 shows an embodiment of a net for a threshing device according to the present invention, FIG. 1 is a plan view showing a lattice member, FIG. 2 is a sectional view of the net as viewed in the direction along the axis of rotation of the handling cylinder, FIG. 3 is a cross-sectional view of the net as viewed in a direction orthogonal to the axis of rotation of the handling cylinder, FIG. 4 is an exploded perspective view showing the net, frame, etc., and FIG. 5 is a schematic side view of the threshing device. (3) …… Handling cylinder, (4) …… Receive net, (4A) …… Vertical lattice member, (4B) …… Horizontal lattice member, (D) …… Width of vertical lattice member, (E) ...... Width of horizontal lattice member, (P)
...... Rotary axis core.

Front page continuation (72) Inventor Susumu Onishi 64, Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Factory (72) Inventor, Yoshitada Nakamura 64, Ishizukitamachi, Sakai City, Osaka Prefecture (72) Inventor Masaru Ando 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd. Sakai Works (56)

Claims (1)

[Scope of utility model registration request] 1. A transverse lattice member (4B) arranged in a direction along a rotation axis core (P) of the handling cylinder (3) and a direction orthogonal to the rotation axis center (P) of the handling cylinder (3). The receiving net (4) having a mesh formed with the arranged vertical lattice member (4A) is molded from a synthetic resin material, and the handling cylinder (3) of the vertical lattice member (4A) in each mesh portion is formed. Threshing in which the width (E) in the direction along the circumferential direction of the handling cylinder (3) of the lateral grid member (4B) is set larger than the width (D) in the direction along the axis of rotation (P) of Device receiving network.