JP2001061334A - Receiving net structure of thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To largely lower a cost required for treatments and largely reduce labors, when a grid-like receiving net is partially severely worn. SOLUTION: In this receiving net structure of the thresher, an upper case 15 rotatably supporting a threshing cylinder 2 in a state capable of being rotated on the first axis X1 is connected to the lower case 14 equipped with a receiving net 3 curved along the outer periphery of the threshing cylinder 2 in a state capable of being swingably opened or closed on the second axis X2, and the receiving net 3 comprises a plurality of circular plate metal members 16 crossing the first axis X1 and a plurality of linear steel members 17, 18 along the first axis X1 in a grid-like shape. Therein, the prescribed positions of the circular members 16 are formed from piece members 16A which can be detached from the inner surface side of the receiving net 3 with respect to the circular member 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an upper case for rotatably supporting a handling cylinder around a first axis, a lower case having a receiving net curved along the outer periphery of the handling cylinder, and a second shaft. While opening and closing swingably connected around the core, the receiving net,
A plurality of sheet metal arc-shaped members orthogonal to the first axis;
The present invention relates to a net receiving structure of a threshing device, which is formed in a lattice shape from a plurality of linear steel materials along the first shaft core.

[0002]

2. Description of the Related Art In addition to a lattice-shaped receiving net (so-called concave) having the above-mentioned structure, which is mainly used in a threshing device mounted on a whole culm-in type combine, a wire receiving material of a threshing device is mainly used. And a resin net having a structure obtained by integrally molding a resin material such as ultrahigh molecular weight polyethylene.

[0003] Crimp nets and resin nets are mainly used in threshing machines mounted on self-combining type combiners. Crimp nets use linear steel materials and have irregularities caused by weaving of the linear steel materials. Because of having, it is excellent in terms of durability and single grain removal of removing branch stalks and the like from grains, but clogging caused by branch stabs between woven linear steel materials easily occurs, or There are drawbacks such as weakness to wet. The resin net has an advantage that it is resistant to wetness and has no clogging caused by sticking of a branch spike like a crimped net because the resin net has an integrally molded structure with a water-repellent resin material itself. Since the net surface is flat, it is inferior in terms of monogranulation as compared to a crimped net having irregularities, and is more expensive than a crimped net by adopting a resin material such as ultra-high molecular weight polyethylene. However, they also have disadvantages such as poor durability.

[0004] On the other hand, the grid-shaped receiving net does not knit a linear steel material like a crimp net,
There is no clogging caused by the sting of a branch spike, and by being composed of an arc-shaped member made of sheet metal and a straight steel material,
A resin net that has superior durability compared to a crimp net or a resin net made of a linear steel material, and is easier to manufacture than a crimp net that weaves a linear steel material, and that uses a resin material such as ultra-high molecular weight polyethylene. In recent years, it has been considered that this grid-shaped receiving net is actively used in a threshing device mounted on a self-contained combine, because it has advantages such as lower cost.

Conventionally, a grid-shaped receiving net has a structure in which a plurality of arc-shaped members and a linear steel material are integrated by welding their respective joints, or a plurality of arc-shaped members and an outer end. There is a structure in which another linear steel material is detachably attached to a base frame portion made of a pair of linear steel materials located in a direction perpendicular to the arc-shaped member. Incidentally, the latter receiving net of the above prior art, when attached to the threshing device, by the arc-shaped receiving net guide that will receive and support both ends in the grain culm transport direction in the receiving net, other linear receiving net guide The steel material is prevented from coming off from the base frame.

[0006]

By the way, in a grid-shaped receiving net, an arc-shaped member is treated with respect to a straight steel material in order to improve the threshing property during threshing and to improve the grain size. It is common practice to regulate the movement speed of the culm tip side between the handling cylinder and the receiving net and the flow rate of the processed material by protruding from the handling cylinder and the receiving net. The arc-shaped member may be partially and severely worn due to the relationship with the tendency of the processed material to stay. If such abrasion occurs in the former one of the above-mentioned prior arts, it is necessary to replace the entire receiving network, so that the inconvenience of increasing the cost for dealing with the abrasion is caused. Had become. On the other hand, if such abrasion occurs in the latter of the above-mentioned prior arts, it is necessary to replace the entire base frame, so that the cost required for dealing with the abrasion can be reduced. There was room for improvement. Further, at the time of the replacement, it is necessary to remove the receiving net from the threshing device, so that the replacement work requires a lot of trouble.

SUMMARY OF THE INVENTION An object of the present invention is to greatly reduce the cost and labor required to cope with a case where the grid-like receiving net is partially and severely worn.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, an upper case for rotatably supporting a handling cylinder around a first axis is provided on the upper casing. In the lower case with a receiving net that curves along the outer circumference of
A plurality of arc-shaped members made of sheet metal orthogonal to the first axis and a plurality of linear steel members along the first axis are connected to each other so as to be able to swing open and close around the second axis. In the net receiving structure of the threshing device configured in a lattice shape from the above, a predetermined portion of the arc-shaped member is constituted by a piece member detachably attached to the arc-shaped member from an inner surface side of the net.

According to the first aspect of the present invention, the arc-shaped member is formed of a piece member at a location where partial intense abrasion is likely to occur, and the abrasion occurs at the predetermined location. In such a case, if the upper case is opened around the second axis with respect to the lower case and is swung to reveal the handle cylinder open state in which the gap between the receiving net and the handle cylinder is opened, the severely worn predetermined portion may be removed. Only the piece members can be easily replaced from the inner side of the receiving net without the trouble of removing the receiving net from the threshing device.

[Effect] Therefore, in a grid-like receiving network,
It has become possible to greatly reduce the cost and labor required for coping with a case where severe wear occurs partially.

In the invention according to claim 2 of the present invention,
The invention according to claim 1, wherein the receiving net is, in its bending direction, an upper receiving net portion located on the upper side in the rotation direction of the handling cylinder, and a lower side located on the lower direction in the rotating direction of the handling cylinder. In addition to being configured in a two-part structure that can be divided into a receiving net portion, the location of the piece member is set at the uppermost position in the rotation direction of the handling cylinder in the arc-shaped member of the lower receiving net portion.

According to the second aspect of the present invention, since the receiving net is formed in a two-part structure, it is handled in a lattice-like shape which has a disadvantage that it is heavier than a crimp net or a resin net. You can improve your sexuality,
In addition, since the dividing direction is the bending direction of the receiving net, the length of the bending direction in each net receiving portion is reduced, so that the receiving net between the lower case and the handling cylinder opened when the handling cylinder is opened. Can be easily attached and detached.

[0013] When a grid-shaped receiving net is formed, an arc-shaped member is protruded toward the cylinder side from a straight steel material in order to improve the threshing property during grain threshing and to improve the grain size. Generally, the movement speed of the spike tip side between the handling cylinder and the receiving net and the flow speed of the processed product are generally regulated. At the time of threshing, the processed material such as grain that has been threshed from the tip side of the grain stalk transported between the handling cylinder and the upper side in the handling cylinder rotation direction of the receiving net is received with the rotation of the handling cylinder. The net is diffused toward the lower side in the rotation direction of the cylinder. Therefore, when the receiving network is configured in a two-part structure that can be divided into an upper receiving network portion and a lower receiving network portion, the division is divided into the upper receiving network portion side and the lower receiving network portion side by the division. Of the arcuate members that are in the state of being processed, the amount of processed material that contacts the uppermost position in the handling cylinder rotation direction in the arcuate member on the lower receiving net portion side is increased, and that portion is particularly severely worn. Become.

In view of the above, in the invention according to the second aspect, the location of the piece member detachable from the inner surface side of the receiving net is changed to the handle cylinder in the arc-shaped member of the lower receiving net portion. It is set at the uppermost position in the rotation direction of
By this, when severe wear occurs at that location, if the handling cylinder is opened, only the piece members arranged at the location where the severe wear occurs, from the inner side of the receiving net, It becomes possible to easily replace the receiving net from the threshing device without having to remove it.

[Effect] Accordingly, while the grid-like receiving net has a structure which can improve the handling and facilitate the attachment and detachment to the threshing apparatus, the cost required for coping with the newly generated partial severe wear can be reduced. It has become possible to greatly reduce the labor and labor.

[0016]

FIG. 1 shows a vertical side view of a threshing device mounted on a self-removing combine. This threshing device includes a feed chain 1 for holding and transporting a harvested culm in a horizontal position. Rotating around the first shaft center X1 in the direction, the handling cylinder 2 for threshing the ears of the harvested grain culm conveyed by the feed chain 1, and the processed material obtained by the threshing is leaked. The receiving net 3, a dust outlet 4 for dropping the processed material not leaking from the receiving net 3, and a crank mechanism 5 for the processed material leaked from the receiving net 3 and the processed material dropped from the dust sending port 4.
Swing sorting device 6 that performs a sieve sorting process by swing drive by
Karamin 7, which supplies the sorting wind to the rocking sorting device 6, and the best thing to collect the single-grained kernels (from which the branch stems and the like have been removed) leaking from the front side of the rocking sorting device 6. A collecting unit 8, a second-item collecting unit 9 for collecting non-single-grained grains (those from which branch stalks and the like have not been removed) leaking from the rear side of the rocking sorter 6, and a cut straw or straw It is constituted by a dust exhaust fan 10 for discharging dust and the like outside the machine.

At the bottom of the first material recovery section 8, there is provided a first screw 8 for transporting the recovered single-grained grains to the right outside of the threshing apparatus.
A is provided, and at the right end of the first screw 8A, a lifting screw 11 for lifting the single-grained grain discharged by the first screw 8A toward a grain receiving port of a grain tank (not shown) is provided. It is installed continuously. At the bottom of the second product recovery unit 9, a second screw 9A for discharging the collected non-single kernels to the right outside is provided, and at the right end of the second screw 9A, the second screw 9A is discharged by the second screw 9A. A second reduction device 12 for subjecting the non-single-grained grains to re-threshing and reducing the same to the front side of the rocking sorting device 6
Are connected.

As shown in FIGS. 1-4, the receiving net 3 is
With a curved shape that curves along the outer circumference of
An upper side receiving net portion 3 disposed on the upper side in the rotation direction of the handling cylinder 2
A and a lower receiving net portion 3B disposed on the lower side in the rotation direction of the handling cylinder 2 are configured in a two-part structure,
Is mounted on the lower side in the rotation direction of the handle cylinder 2 (closer to the right side of the handle cylinder 2) over the arc-shaped receiving network guide 13 disposed on both front and rear lower sides of the swinging sorting device 6 and the receiver. With respect to the lower case 14 provided with the net guide 13 and the like, the upper case 15 supporting the handling cylinder 2 is swung up and down around the second axis X2 in the front-rear direction. It can be attached to and detached from the front and rear receiving guides 13.

As shown in FIG. 2 to FIG.
A and the lower receiving net portion 3B are a plurality of sheet metal arc-shaped members 16 arranged side by side at a predetermined pitch in a posture orthogonal to the first axis X1, which is the rotation axis of the handling cylinder 2, and both ends thereof. A pair of support steel members 1 each having a U-shape in cross section as an example of a linear steel member arranged in a posture along the first axis X1 so as to support it.
7 and a first axis X between the pair of supporting steel members 17.
A plurality of bar-shaped steel members 18 each having a circular cross section as an example of linear steel members arranged side by side at a predetermined pitch in a posture along position 1 are formed in a lattice shape by welding, and the receiving net portions 3A, 3B are formed. Each supporting steel member 17 located on the divided end side of the above is received and supported by a reinforcing member 19 provided over the front and rear receiving net guides 13.

In other words, by adopting a lattice-like structure having the above-described structure as the receiving net 3, the cost is lower than that of the resin net, but the sting of a branch spike that may occur when the crimping net is adopted is caused. Clogging can be suppressed and durability can be improved compared to resin nets and crimp nets.On the other hand, the weight is heavier than resin nets and crimp nets, which is disadvantageous in handling. The grid-like receiving network 3 becomes
In the bending direction, the upper receiving net portion 3A and the lower receiving net portion 3
B and the receiving network part 3
By reducing the lengths of the A and 3B in the bending direction, the handling cylinder 2 and each net guide 13 that are largely opened when the handling cylinder is opened.
The receiving network 3 can be easily attached to and detached from the front and rear receiving network guides 13 from before and after.

The arc-shaped member 16 projects toward the handling cylinder 2 with respect to the supporting steel material 17 and the bar-shaped steel material 18, so that during the threshing process, the handling cylinder 2 and the receiving net 3 are projected.
The movement speed of the spike tip side and the flow speed of the processed material between the stalk and the stalk can be regulated, thereby improving the grain shedding performance and the singulation of grains.

As shown in FIGS. 2, 3 and 6 to 8, each arc-shaped member 16 of the lower receiving net portion 3B supports only the bar-shaped steel material 18A located on the uppermost side in the rotation direction of the handling drum 2. It is configured to be separable into a piece member 16A and a member body 16B that supports the other bar-shaped steel material 18B. Among the piece members 16A, the piece members 16A belonging to the arc-shaped members 16 at both ends mounted on the receiving net guide 13 are inserted from the notch 13a of the receiving net guide 13 into the corresponding member main body 16A.
The piece member 16A belonging to the other arc-shaped member 16 is formed so as to be externally engaged with the corresponding member main body 16B from the handling cylinder 2 side so as to be bolted to B. I have.

In short, by forming the receiving net 3 into a two-part structure that can be divided into the upper receiving net portion 3A and the lower receiving net portion 3B, partial severe abrasion due to contact of more processed materials. At a predetermined portion of the receiving network 3 where
That is, the uppermost position in the rotation direction of the handling cylinder 2 in each of the arc-shaped members 16 of the lower-side receiving net portion 3B is constituted by the separable piece members 16A, and the piece members 1
6A is made to support the bar-shaped steel material 18A located on the uppermost side in the rotation direction of the handling cylinder 2 in the lower receiving net portion 3B, so that if the piece members 16A are partially severely abraded. Shows the handling cylinder open state, and the piece member 16A and the member body 16B located at both ends are displayed.
By simply releasing the bolt connection with the
Can be easily replaced with the rod-shaped steel material 18A supported by them without trouble of removing the entire receiving net 3 or the lower receiving net portion 3B from the receiving net guide 13 from the inner surface side of the receiving net 3. Therefore, the cost and the labor required for coping with the occurrence of severe partial wear in the receiving network 3 can be greatly reduced.

[Other Embodiments] Hereinafter, other embodiments of the present invention will be listed. The threshing device may be a device mounted on an all-culm input combine. The receiving network 3 may be configured so as to be indivisible into an upper receiving network portion 3A and a lower receiving network portion 3B. Piece members 16A belonging to the arcuate members 16 at both ends of the piece members 16A which are placed on the receiving net guide 13.
And the corresponding connection to the member main body 16B may be performed by a pin or a screw instead of the bolt illustrated in the above embodiment. Each piece member 16 </ b> A may be configured to be independently detachable from the arc-shaped member 16 from the inner surface side of the receiving net 3. As shown in FIG. 9, a notch 16 a for the bar-shaped steel member 18 and a notch 16 b for the arc-shaped member 16 are formed in the piece member 16 A, and the attachment and detachment of the piece member 16 A can be performed by the bar-shaped steel member 18 and the arc-shaped member 16. It may also be possible to perform it more simply by engaging and disengaging with respect to. As a place where the piece member 16A is disposed, as long as a part of the arc-shaped member 16 is likely to cause severe abrasion, the handling cylinder 2 in each arc-shaped member 16 of the lower receiving net portion 3B exemplified in the above embodiment is used. May be other than the uppermost position in the rotation direction. The piece member 16A may be made of a material having higher wear resistance than the member body 16B.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of a threshing apparatus.

FIG. 2 is a vertical front view of the upper part of the threshing device.

FIG. 3 is a vertical front view of the upper part of the threshing device showing the handling cylinder open state.

FIG. 4 is a longitudinal sectional side view of a main part of a threshing apparatus showing a configuration of a receiving network.

FIG. 5 is a plan view showing a configuration of a better receiving network portion.

FIG. 6 is a plan view showing a configuration of a lower receiving network portion.

FIG. 7 is a longitudinal sectional front view of a main part showing a detachable structure of a piece member in a lower receiving net portion;

FIG. 8 is a perspective view of a main part showing a detachable structure of a piece member in a lower receiving net portion;

FIG. 9 is a perspective view of a main part showing a detachable structure of a piece member according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 Handling cylinder 3 Receiving net 3A Upper receiving net portion 3B Lower receiving net portion 14 Lower case 15 Upper case 16 Arc-shaped member 16A Piece member 17 Linear steel 18 Linear steel X1 First shaft X2 Second shaft

Claims (2)

[Claims] 1. An upper case for rotatably supporting a handling cylinder around a first axis, and an open / close swing about a second axis about a lower case having a receiving net curved along an outer periphery of the handling cylinder. In addition to being connected as possible, the receiving net is formed in a lattice shape from a plurality of sheet metal arc-shaped members orthogonal to the first axis and a plurality of linear steel members along the first axis. A net receiving structure of a threshing device, wherein a predetermined portion of the arc-shaped member is constituted by a piece member detachable from the inner surface side of the arc-shaped member with respect to the arc-shaped member. 2. A receiving net portion located on the upper side in the rotation direction of the handling cylinder in a bending direction of the receiving net, and a lower receiving net portion located on a lower side in the rotating direction of the handling cylinder in the bending direction. 2. A structure in which the piece member is arranged at a position on the uppermost side in the rotation direction of the handling cylinder in the arc-shaped member of the lower receiving net portion, in a two-part structure that can be divided into two. The receiving net structure of the threshing apparatus described in the above.