JPH0626125Y2 - Thresher receiving net - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a net to be attached to a threshing device.
The present invention relates to a structure of a net made of a synthetic resin material.

[Conventional technology]

Conventionally, as a receiving net for a thresher made of a synthetic resin material, for example, as shown in Japanese Utility Model Publication No. 36-15021,
It is known that the lattice-shaped leakage lower surface and the peripheral mounting frame portion are integrally formed of a synthetic resin material. The receiving net integrally molded of synthetic resin material has the advantages that it is easy to manufacture, lightweight, and does not corrode, because it does not cause clogging due to straw dust entering the connecting parts of the vertical and horizontal lattice members. Is to have.

In particular, if a synthetic resin material with high water repellency and high abrasion resistance is used, it can withstand long-term use, and even when wet threshing, it is difficult for straw dust to adhere and continuous threshing work can be performed without clogging. You can lengthen the time.

[Problems to be solved by the device]

As described above, the synthetic resin receiving net exhibits various advantages as compared with a crimp net formed by knitting a metal wire, but on the other hand, in terms of mechanical strength, particularly bending strength. It is inferior to metal nets, which is a problem for practical use.

That is, in the threshing device, since a grain culm is supplied between the handling barrel and the net to perform threshing treatment, a large processing pressure from the handling barrel acts on the lattice-like leakage lower surface of the net, The receiving net tends to recede and deform away from the handling cylinder. When the leaking lower surface of the receiving net recedes and deforms in this way, the distance between the handling teeth projecting on the outer periphery of the handling cylinder and the receiving net becomes large, and the threshing performance deteriorates and unremoved residue easily occurs.

Of course, if the thickness of the net is increased, the strength is also increased, but if the thickness of the net is increased under the condition that the size of the leakage bottom surface is determined, it will be compared to the size of the mesh. As a result, the depth increases, and even synthetic resin materials that are difficult to adhere to are prone to clogging, and the thickness of the net cannot be unnecessarily increased.

Further, if the width of the lattice member forming the leakage lower surface is increased to increase the strength of the leakage lower surface, the aperture ratio of the leakage lower surface is reduced and the leakage performance is deteriorated.

As described above, how to secure the strength of the resin net is an important issue for practical use.

The present invention has been made paying attention to such an actual situation, and by making a reasonable improvement in the support and reinforcement of the resin-made net, the practical use of the resin-made net which brings various advantages. It was an attempt to make it possible.

[Means for Solving the Problems]

The technical means of the present invention taken to achieve the above object are:
In a receiving net of a threshing device configured to be attached to a machine through a frame that is separate from the receiving net, which is arranged along the handling cylinder, and the lattice-like leakage lower surface that constitutes the receiving net. , A peripheral mounting surface portion formed on the four circumferences of the leakage lower surface, and an intermediate mounting surface portion formed inside the leakage lower surface,
Integrally molding a synthetic resin material having high water repellency and wear resistance, and setting the cross-sectional shape of the leakage lower surface to a vertically long shape having a height dimension larger than the width dimension, and at the same time as the peripheral mounting surface portion and the middle portion. The mounting surface portions are each made wider than the lattice member, and the frame is provided with a peripheral frame portion for mounting and supporting the peripheral mounting surface portion on four sides thereof and screw-connecting the peripheral mounting surface portion. An intermediate frame part for placing and supporting the part and screw-connecting it is provided, and further, the bow metal arranged on the intermediate mounting surface part of the receiving net is fixed to the intermediate frame part of the frame together with the intermediate mounting surface part. In addition, the frame is arranged so as to receive and support the leaking lower surface from the counter-handling cylinder side along a grid member of the lattice members forming the leaking lower surface that intersects with the bow metal. The support frame is provided, and that,
The width of the support frame is set to be within the width of the lattice member in the direction intersecting the bow.

[Action]

 The operation of the above configuration is as follows.

a. Since the resin receiving net connects and supports the mounting surface part on the four circumferences of the leakage lower surface to the frame part on the four circumferences of the frame, the middle portion of the leakage lower surface is oriented in the direction along the surface of the mesh surface or perpendicular to the surface by the processing pressure from the handling cylinder. It restrains the deformation in the direction by pulling from all sides.

b. Since the cross-sectional shape of the lattice member itself constituting the leaked bottom surface is set to be vertically long so that deformation in the direction perpendicular to the plane of the leaked bottom surface is unlikely to occur, it becomes easy to withstand the processing pressure from the handling cylinder.

c. By supporting the intermediate mounting surface portion inside the leakage lower surface with the intermediate frame portion of the frame by fastening together with the bow metal, the strength of the arch metal is utilized for reinforcing the leakage lower surface.

d. Since the frame is provided with a support frame arranged to receive and support the leaking lower surface of the receiving net from the non-handling cylinder side along the lattice member in the direction intersecting the bow metal,
The reinforcing action of the support frame helps prevent deformation in the direction perpendicular to the plane of the net.

e. Moreover, since the width of the support frame is set to fit within the width of the lattice member in the direction intersecting with the bow metal, the existence of the support frame does not narrow the holes on the leak lower surface, and Therefore, it is possible to prevent the processing object from adhering thereto and growing.

Above a. ~ E. The above function is synergistically exerted, and the durability against deformation of the leakage lower surface is further enhanced without reducing the processing function of the receiving network.

[Effect of device]

As described above, fixing from the four circumferences of the receiving net, setting the cross-sectional shape of the lattice member that constitutes the leaking bottom surface, and screwing the middle part of the frame by co-fastening with the bow metal, and from the side of the unhandled barrel By the synergistic function of the support function of the support frame, the middle part of the leakage lower surface of the receiving net can be sufficiently reinforced, and the middle part of the leakage lower surface can be prevented from being deformed backward due to the processing pressure from the handling cylinder. It has become possible to effectively prevent the threshing performance from decreasing due to the increased distance from the bottom surface of the net leakage.

In addition, when reinforcing the leaked bottom surface, by using a bow metal required for handling and a support frame that does not reduce the leaked area on the leaked bottom surface, the reinforcement of the lattice member affects the leaked area. Since the processing is performed in the absence of the condition, the processing performance can be maintained in a good state.

As a result, it has become possible to put into practical use a resin net which can sufficiently exhibit the characteristic advantages.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. 8th
The figure shows a threshing device to be mounted on a combine, the threshing device is provided with a feed chain (2) for holding and transporting cut culms on the outer side of the case part (1), and above the inside of the case part (1). In the handling room (A) formed in, by rotating around the axis (P) along the front-rear direction of the body of the combine, the harvested culm supplied to the handling room by the feed chain (2). It is equipped with a handling barrel (3) that gives handling treatment, and a catching net (4) is installed at the bottom of this handling chamber (A) to let down the grains shattered by the handling action of the handling barrel (3). On the lower side of this receiving net (4), there is an oscillating sorting mechanism (5) that sorts the processed products from the handling room (A), a sardine (6) that sends sorting air, and an oscillating sorting mechanism (5). A state in which the No. 1 screw (7) for collecting the sorted grains and the No. 2 screw (8) for collecting the processed material from the swinging and sorting mechanism (5) are provided, respectively, and are parallel to the handling room (A). Process chamber formed on the Similarly, the processing cylinder (3) is provided with a processing cylinder (9) which rotates about the longitudinal axis, and the second screw (8) is provided between this processing chamber and the second screw (8). It is equipped with a thrower-type reduction mechanism (10) that sends the treated material collected in 8) to the treatment chamber.

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. 1, the receiving net (4) has a frame (1) separable into two upper and lower members formed in a shape along the rotational trajectory of the handling cylinder (3).
1) and 12) respectively, and the upper frame (11) is provided with a punching metal (13) in addition to the receiving net (4), and the reprocessing product from the processing chamber is handled in the chamber. A reduction opening (C) is formed for feeding into (A).

Further, the receiving net (4) attached to the lower frame (12) is oriented vertically as shown in FIGS. 1 to 7 in a direction orthogonal to the rotary shaft core (P) of the handling cylinder (3). Leakage bottom surface (4F) consisting of the lattice member (4A) and the lateral lattice member (4B) directed in the direction along the axis of rotation (P) of the handling cylinder (3), and the mounting surface portion (4D) of its four circumferences, (Four
E) and E are integrally formed of the above synthetic resin material.

In the state of traversing in the vertical direction and the left-right direction on the leakage lower surface (4F), the respective grid members (4A), (4B) intermediate mounting surface portion (4C) is a grid member (4A), It has the same thickness as (4B) and is integrally formed with the receiving net (4).

Further, a wide peripheral mounting surface portion having a thickness (T2) larger than the thickness (T1) of the lattice members (4A) and (4B) at the upper and lower edges of the net (4) in the circumferential direction. (4D) and (4D) are formed, and grid members (4A) and (4B) are provided on the left and right edges of the net (4).
Peripheral mounting surface part that has the same thickness as and wide width
(4E) and (4E) are formed.

The upper and lower peripheral mounting surface portions (4D) having a large thickness are provided with the peripheral frame portions (12
A screw insertion hole (15) for the screw (14) with a hexagonal head for connecting and fixing to (A) is provided through, and the intermediate mounting surface part (4
C) and the left and right peripheral mounting surface parts (4E) of the same thickness as these are the screws with pan heads that connect these to the frame (12).
A screw insertion hole (17) for (16) is provided through, and these screws (15) and (17) have a stepped shape in which the heads of the inserted screws (14) and (16) are depressed. It is formed in the hole.

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 a protruding curved surface (4t) and (4t), respectively, As shown in Fig. 5, a trough-shaped groove (D) is formed at the intersection of both protruding curved surfaces (4t) and (4t).
Are formed.

In addition, the non-handling cylinder side of each lattice member (4A), (4B) is a flat surface (4u),
(4u), and the side surfaces (4s), (4s) of the respective lattice members (4A), (4B) are formed flat, so that the side surfaces (4s), (4s)
Corners (E) and (E) are formed at the boundary between (s) and the flat surfaces (4u) and (4u).

Further, the frame (12) has an intermediate mounting surface portion of the receiving net (4).
An intermediate frame portion (12B) for mounting (4C) and screw-connecting it is provided, and a support frame (18) for receiving and reinforcing the leaking lower surface (4F) of the receiving net (4) from below is attached. The lattice member (4B) is reinforced by contacting the support frame (18) through the flat surface (4u) as shown in FIG. 2, and the width of the support frame (18) ( Width of lattice member (4B) from (F) (G)
By setting a large value, leakage performance will not be degraded.

Two bows (19) are attached to the upper and lower receiving nets (4) on the handling cylinder side as follows.

That is, the bow metal (19) on the rear side of the receiving net (4) is placed along the peripheral mounting surface portion (4E) of the receiving net (4), and the frame (12)
It is screwed and fixed to the peripheral frame part (12A) together with.
Further, the bow metal (19) located in the middle of the receiving net (4) is placed along the intermediate mounting surface portion (4C) of the receiving net (4) and the frame (1
It is also screwed and fixed to the intermediate frame part (12B) of 2) by co-tightening.

[Another embodiment]

In the present invention, other than the above embodiment, for example, the receiving net may be made of any resin, and the number of fixing portions of the receiving net may be singular or plural.

It is also possible to configure the receiving net by setting the opening on the non-handling drum side larger than the opening on the handling barrel side of the net, that is, by setting the cross-sectional shape of the lattice member to be tapered.

The receiving network can also be applied to a harvester.

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 an exploded perspective view showing the net, frame, etc., FIG. 2 is a sectional view of a lattice member, and FIG. FIG. 4 is a cross-sectional view of the net as viewed in the direction along the axis of rotation, FIG. 4 is a cross-sectional view of the net as viewed in the direction orthogonal to the axis of rotation of the handling cylinder, and FIG. 5 is a plan view showing a lattice portion of the net. FIG. 6 is a sectional view showing a lattice part of the receiving net, FIG. 7 is a perspective view showing a lattice part of the receiving net, and FIG. 8 is a schematic side view of a threshing device. (3) …… Handling cylinder, (4) …… Bearing net, (4A), (4B) …… Lattice member,
(4C) …… Intermediate mounting surface part, (4D), (4E) …… Peripheral mounting surface part, (4F) …… Leakage bottom surface, (12) …… Frame, (12A)…
... Peripheral frame part, (12B) ... Middle frame part, (18) ... Support frame, (19) ... Bow metal, (F) ... Support frame width, (G)
The width of the grid member.

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 (56) References in Sakai Works, Kubota Iron Works Co., Ltd. (56) References

Claims (1)

[Scope of utility model registration request] 1. A threshing device constructed so that a receiving net (4) arranged along a handling barrel (3) is attached to an airframe through a frame (12) separate from the receiving net (4). A receiving net, which constitutes the receiving net (4), has a lattice-shaped leakage lower surface (4F), and peripheral mounting surface portions (4D) formed on four circumferences of the leakage lower surface (4F),
(4E) and the intermediate mounting surface portion (4C) formed inside the leakage lower surface (4F) are integrally molded with a synthetic resin material having high water repellency and abrasion resistance, and the lattice on the leakage lower surface (4F) The cross-sectional shape of the members (4A) and (4B) is set to a vertically long shape with a height dimension larger than the width dimension, and the peripheral mounting surface portions (4D), (4E), and the intermediate mounting surface portion (4C) are respectively Wider than the lattice members (4A) and (4B), the frame (12) is mounted on the four circumferences of the receiving net (4) peripheral mounting surface portions (4D), (4E) and supported by screws. It is equipped with a peripheral frame part (12A), and in the middle part, the receiving net
An intermediate frame portion (12B) for mounting and supporting the intermediate mounting surface portion (4C) of (4) and screw connection is further provided, and further, a bow arranged on the intermediate mounting surface portion (4C) of the receiving net (4). The gold (19) is fixed to the intermediate frame portion (12B) of the frame (12) together with the intermediate mounting surface portion (4C), and the leakage lower surface (4F) is attached to the frame (12). The leaking bottom surface
Of the lattice members (4A) and (4B) that make up (4F), the bow metal (1
The support frame (18) is provided along the lattice member (4B) in the direction intersecting with 9) so as to receive and support it from the side opposite to the handle barrel, and the width (F) of this support frame (18). The bow gold (1
A threshing device receiving net characterized by being set to a size that can be accommodated within the width (G) of the lattice member (4B) in the direction intersecting with 9).