JPH11262320A - Threshing machine - Google Patents

Abstract

(57) [Problem] To provide a threshing machine for threshing by supplying a harvested grain culm to a handling room by a threshing transport device so that threshing can be performed efficiently. SOLUTION: The ear end side of a harvested grain culm is supplied between a handling drum 3 and a grid receiving net 20 by a threshing transport device to perform threshing. First vertical bar member 26 and second vertical bar member 2 of lattice receiving net 20
7, the second vertical bar member 27 is provided with a second vertical bar portion 23b, and the second vertical bar portion 23b is
The length of the first vertical bar member 26 protruding from the horizontal rail members 24 and 25 toward the handle cylinder side is set to be longer than the length of the first vertical bar member 26 projecting toward the handle cylinder side. The length of the second vertical bar portion 23b protruding from the horizontal bar members 24, 25 to the side opposite to the handle cylinder side is set to the first vertical bar member 2
6 is smaller than the length projecting from the crosspiece members 24, 25 to the side opposite to the handling cylinder side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing machine in which the front side of a harvested grain culm is transported by a threshing transport device between a receiving net of a handling room and a handling drum to perform threshing.

[0002]

2. Description of the Related Art As the above-mentioned threshing machine, there has hitherto been one in which a receiving net of a handling room is formed of a crimp net. Further, as shown in, for example, Japanese Patent Application Laid-Open No. 63-248318, there has been one in which the receiving net is made of a synthetic resin net.

[0003]

When the mesh size of the receiving net is smaller than that of the receiving net, the threshing grain is more likely to leak from the receiving net, and the threshing process can be performed efficiently by reducing the threshing load. However, even in the case of the conventional crimp net, even in the case of the synthetic resin net, since the mesh becomes relatively small when the necessary strength to withstand the threshing load is provided,
Threshing efficiency could not be improved much. In addition, when the grain stalk is high in moisture, such as when the grain stalk is wet with rain or dew, clogging is likely to occur in the receiving net. SUMMARY OF THE INVENTION An object of the present invention is to provide a threshing machine which can efficiently thresh while reducing the size and which is less likely to cause clogging of the receiving net even at high moisture.

[0004]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[0005] [Structure] In a threshing machine in which the tip side of a harvested grain culm is transported between a receiving net in a handling room and a handling drum by a threshing transport device to perform threshing processing, the receiving net is moved around a handling cylinder. A plurality of vertical bar members along the direction and a plurality of horizontal bar members along the handling cylinder axis direction are configured as a lattice receiving net,
Some second vertical rail members of the plurality of vertical rail members protrude from the horizontal rail members toward the handling cylinder side and protrude longer than the first vertical rail members different from the second vertical rail members. The length of the second vertical bar member, the second vertical bar member protruding from the horizontal bar member to the side opposite to the handling cylinder side, is set to the first vertical bar member.
The length of the vertical rail member is shorter than the length of the vertical rail member protruding from the horizontal rail member on the side opposite to the handling cylinder side.

[Effects] A grid is used as the receiving net, and while the receiving net is provided with a relatively large mesh so that the thresh-processed material easily leaks quickly, it is necessary to divide the mesh size. It is intended to provide an excellent receiving network strength. When the threshing process is performed, the grain culm climbs over the second vertical rail member for transfer by the threshing transport device, and the thresh-treated product such as threshing grains is washed away by the grain culm. The grain culm that passes over the second vertical bar member is moved toward the handling cylinder side by the second vertical bar portion, and is easily subjected to a handling action by the handling cylinder, and is likely to shed. The thresh-processed product flowing together with the cereal stem is received by the second vertical bar portion of the second vertical bar member, and the flow is stopped to easily leak from the receiving net.

[0007] While the first crosspiece member has the required crosspiece strength, the length of the second vertical crosspiece projecting from the horizontal crosspiece member to the side opposite to the handle cylinder side is defined as the protruding length of the first vertical crosspiece member. If the length is the same or longer, the second vertical cross section projects longer than the first vertical cross section member from the horizontal cross section member to the handling cylinder side, so that the second vertical cross section section has the first vertical cross section. It is larger and heavier than the member. In the lattice receiving net of the present invention, since the length of the second vertical bar portion protruding from the horizontal bar member to the side opposite to the handling cylinder side is shorter than the first vertical bar member, the first vertical bar member has In addition, the second vertical crosspiece can be made as small as possible and the weight of the entire receiving net can be reduced as much as possible. Further, when the length of the second vertical bar portion protruding from the horizontal bar member on the opposite side to the handling cylinder side becomes equal to or longer than the length of the first vertical bar member protruding, the second vertical bar member is provided. When the threshing product leaks between a pair of first vertical bar members sandwiching the portion, the second vertical bar portion easily becomes an obstacle. In the grid receiving net of the present invention, a pair of first
Even if the obstacle formed by the second vertical bar between the vertical bar members is small and the moisture content of the grain is high, threshing between the pair of first vertical bar members sandwiching the second vertical bar is possible. It is easy to leak smoothly without clogging of the processed material.

Therefore, as a whole, even if a relatively large amount of cereal stalks are supplied to the handling room and the water content of the cereal stalks is relatively high, the area of the cereal stalks is relatively small and the weight is relatively small. A threshing process can be performed while quickly preventing the threshing product from leaking in a state in which clogging is unlikely to occur with a simple receiving net while preventing poor threshing defects.

[Effect] The ears of the harvested grain culm can be supplied to the handling room by the threshing transport device to perform threshing while suppressing the number of damaged grains. It is obtained in such a state that it can be efficiently threshed by being supplied to a large amount or to a large amount. In addition, the threshing unit can be reduced in size and weight to be lighter.

The construction, operation and effect of the invention according to claim 2 are as follows.

In the structure according to the first aspect of the present invention, each of the plurality of vertical rail members is formed of a band plate whose thickness direction is the axis direction of the cylinder and whose width direction is along the radius direction of the cylinder.
Each of the plurality of horizontal rail members is made of a wire.

[Effect] The vertical beam member is strip-shaped so as to easily exert the function of bringing the grain culm to the vertical beam member toward the drum side and imparting flow resistance to the thresh-processed material and the effect of exhibiting the receiving net strength. The horizontal rail member is made of a wire so as to exert the effect of forming the lattice receiving net while reducing the weight of the horizontal rail member.

[Effect] A product which can be efficiently threshed can be obtained in a strong and lightweight state which is advantageous in terms of both durability and weight.

The structure, operation and effect of the invention according to claim 3 are as follows.

[Configuration] In the configuration according to the second aspect of the present invention, the thickness of the second vertical bar of the second vertical bar is greater than the thickness of the first vertical bar.

[Operation] A larger grain stalk transfer reaction force or threshing reaction force is applied to the second vertical rail member of the second vertical rail member than to the first vertical rail member, but the thickness of the second vertical rail member is reduced. By being larger than the first vertical beam member, the second vertical beam portion is provided with a required beam strength while making the entire receiving net as lightweight as possible, as compared with the case where the plate thicknesses of both members are similarly thick. Things.

[Effect] The second vertical bar is strong and the receiving net is lightweight. The second vertical bar is provided with the second vertical bar so that the threshing process can be performed efficiently. This is advantageous in terms of both weight and weight.

The structure, operation and effect of the invention according to claim 4 are as follows.

[Structure] In the structure of the invention according to any one of claims 1 to 3, the second vertical beam member of the second vertical beam member is connected to the threshing transport device side of the second vertical beam member. It is prepared only for the cross section located at.

[Operation] On the side opposite to the threshing transport device side of the receiving net, the second vertical rail member does not have a vertical rail similar to the second vertical rail, and this vertical rail exists. On the other hand, threshing products such as broken straw flow smoothly from the front side to the rear side in the handling room, so that threshing can be performed while reducing the handling cylinder driving load.

[Effect] A threshing machine which can efficiently thresh and can be compactly obtained can be obtained in an advantageous state so that the drum driving can be performed with a relatively low torque.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a threshing transport device 1 comprising a threshing feed chain clamps and transports a root side of a harvested cereal culm so that a front end side of the harvested cereal culm is used as a handling room. The threshing process is carried out by transferring between the handling cylinder 3 and the receiving net 20 which are supplied to the threshing machine 2 and rotated about a shaft 3a facing forward and backward, and threshing is performed. The threshing unit is configured so as to be carried out of the threshing machine 4 and discharged from the threshing machine through a discharge port at the rear part of the threshing machine by a straw straw transport chain 5. Rotating around the horizontal axis of the threshing machine while transferring threshing dust such as cutting straw discharged from the culm opening 4 to the rear side of the machine body by the transfer body 7 supported by the swinging and sorting device 6 so as to be swingable integrally. The reprocessing unit is configured to perform a loosening process by the processing cylinder 8 and to extract grains from threshing dust. The swing sorting device 6 whose front end is located below the handling chamber 2, the first blower 11 having the rotary fan 11 a located below the front end of the swing sorter 6, and the first blower 1.
1 and a third blower 13 having a rotating fan 13a located below the rear end of the swinging and sorting device 6, and the like.
Of the threshing processed material that is dropped and supplied from the reprocessing unit, and the processed material that falls from the reprocessing unit are received by the swinging sorting device 6 and are sorted while being conveyed to the rear of the machine body in the direction along the axis of the handling cylinder. At the same time, the sorting air from each of the blowers 11, 12, and 13 is applied to perform a wind sorting process, and the sorted dust is discharged from the dust outlet 14 to the outside of the threshing machine together with the sorting wind, and the dust exhaust fan 1
The sorting unit is configured so as to be sucked by 5 and discharged out of the threshing machine. A first screw conveyor 16 for carrying out the first processed material from the rocking sorting device 6 to the outside of the threshing machine, and a second screw conveyor 17 for carrying out the second processed material from the rocking sorting device 6 to the outside of the threshing machine. At the bottom of the sorting unit, the processed material from the second screw conveyor 17 is discharged to the vicinity of the handling room on the lateral outside of the threshing machine and discharged into the threshing machine by the reduction device 18 comprising a screw conveyor. 20 is configured to return to the front end side of the swinging sorting device 6 through between the threshing machine side wall and 20;
A threshing machine for combine is constructed.

A guide device 19a for connecting the sorting frame 6a of the swinging sorting device 6 to the front end of the sorting frame 6a and a driving device 19b for connecting the rear end of the sorting frame 6a to the left and right sides of the threshing machine. Driving swingably supported over the side wall, Glen pan 6b, chaff sheave 6c and straw rack 6d located in the upper part of the sorting frame in a direction along the handling cylinder axis, and Glen sheave 6e located below chaff sheave 6c. And the like are swingably supported by the sorting frame 6a to constitute the swing sorting device 6. That is, the thresh-processed material that has leaked from the receiving net 20 from the front side of the handling room 2 is received by the Glen pan 6b, coarsely sorted into grains and dust while being transported to the rear of the machine body, and the processed material from the Glen pan 6b is chaff-sieved. While being transferred to the rear of the fuselage by passing through the 6c, it is finely sorted into grains and dust, and the processed material having leaked the chaff sheave 6c is further finely sorted and processed by the Glen Sheave 6e.
# 1 screw conveyor 16
Then, the second sorted products are dropped and supplied to the second screw conveyor 17, respectively. The processed material from the chaff sheave 6c and the reprocessing unit is separated into grains and dust such as broken straw, and the grains are dropped and supplied to the second screw conveyor 17,
Dust is discharged from the dust outlet 14 to the outside of the machine.

The first blower 11 is provided with the Glen pan 6b.
The rotating fan 11a is located near the lower part of the rotating fan 11a, and the intake port 11b is provided in front of the rotating fan 11a.
1a, an exhaust port 11 is provided above the second blower 12 on the rear side.
c from the front end side of the sorting unit by a rotating fan 11a.
The sorting air is supplied from 1c so as to pass through the upper portion of the second blowing device 12 and blow through the sorting frame 6a from the lower side to the upper side, and the sorting action portion between the Glen pan 6b and the chaff sheave 6c and the front end side of the chaff sheave 6c. It is configured to be supplied to the sorting section and act on the processed material of the sorting section. That is, the sorting wind is applied to the roughly sorted material from the grain pan 6b of the swing sorting device 6.

The second blower 12 is made of Karamin having rotating blades 12a. The second blower 12 supplies a sifting wind so as to blow through the sifting frame 6a from the lower side to the upper side, and a sifting path section below the chaff sheave 6c and the Glen sheave 6e. The chaff sheave 6c is supplied to a sorting section formed by a rear end portion and a sorting section formed by a straw rack 6d, so as to act on the processed material of the wind selection path section and the sorting section. In other words, a sorting wind is applied to the finely sorted product by the chaff sheave 6c and the Glen sheave 6e of the swing sorting device 6 and the sorted product by the straw rack 6d.

The third blower 13 includes the rotary fan 13a located between the first screw conveyor 16 and the second screw conveyor 17, an intake port 13b below the rotary fan 13a, and a rotary fan 13a. A fan case that forms an exhaust port 13c on the upper side. The rotary fan 13a draws in air from below the threshing machine, and separates air from the exhaust port 13c through the upper part of the second screw conveyor 17 to move the sorting frame 6a from the lower side to the upper side. And is supplied to the sorting section by the straw rack 13 so as to act on the sorted product by the sorting section.

As shown in FIG. 2, the receiving net 20 is obtained by dividing the receiving net 20 in the circumferential direction of the handling cylinder 3 by one dividing line Y in the direction along the handling cylinder axis 3a. It is created by combining the two divided grid receiving networks 20a and 20b as follows. That is, as clearly shown in FIG. 4 and FIG. 5, the positioning pins 21a provided in the frame 21 of the divided grid receiving net 20a, which is located closer to the root of the threshing grain culm than the divided grid receiving nets 20a and 20b. Is engaged with the frame 22 of the divided lattice receiving net 20b located on the tip side of the threshing grain culm so that the two divided lattice receiving nets 20a and 20b can be handled in the direction along the trunk axis 3a. The receiving net 20 is formed by combining them so that they are engaged with each other so as not to be displaced.

As shown in FIGS. 4, 7 and 9 and the like, the divided grid receiving net 20a on the stock base side has an arc as viewed along the axis of the handle cylinder 3a along the circumferential direction of the handle cylinder 3. Formed into a shape,
The first vertical bar member 23 made of a band metal plate formed so that the plate thickness direction is along the axis of the handle cylinder and the width direction is along the radial direction of the handle cylinder.
a and a handle shaft axis 3 along the circumferential direction of the handle cylinder 3.
The first vertical bar member 23a is formed of a strip metal formed in an arc shape as viewed in a direction along a, and formed such that the thickness direction is along the axis of the handle cylinder and the width direction is along the radial direction of the handle cylinder. Second vertical beam member 23 having a width H2 wider than the width H1
b, two first horizontal rail members 24 made of a linear round bar steel material in the direction along the handling cylinder axis 3a, and the first horizontal rail member 24 along the handling cylinder axis 3a and higher than the first horizontal rail member 24. A plurality of second horizontal rail members 25 made of a straight steel wire having a smaller outer diameter than the first horizontal rail member 24 so as to have abundant elasticity, and a strip metal plate in a direction along the handle shaft axis 3a. Two frame members 21 and
2 is created by combining the following lattice states.
That is, the plurality of first vertical bar members 23a and the second vertical bar members 23b are arranged side by side at predetermined vertical bar member intervals in the direction along the handle barrel axis 3a, and the space between the second vertical bar members 23b. When,
Among the plurality of second vertical rail members 23b, the front side of the second vertical rail member 23b located closest to the front end side of the split lattice receiving net, and the most split lattice receiving net of the plurality of second vertical rail members 23b. A plurality of first vertical rail members 23a exist on the rear side of the second vertical rail member 23b located on the rear end side, and a plurality of first horizontal rail members 24 and second horizontal rail members 25 are provided. Are arranged in parallel to each other at a predetermined horizontal rail member interval in a direction along the handling cylinder circumferential direction, between the first horizontal rail members 24, at the stock side relative to one of the first horizontal rail members 24, and at the other side. It is in a lattice state in which a plurality of second horizontal rail members 25 exist on each of the front ends of one horizontal rail member 24. Further, both the first horizontal rail member 24 and the second horizontal rail member 25 are inserted through the through holes of the first vertical rail member 23a and the second vertical rail member 23b, and the first horizontal rail member 24 is located closest to the front end side of the divided grid receiving net.
The vertical rail member 23a and the first vertical rail member 23a positioned at the rearmost end of the divided grid receiving net connect the ends of all the horizontal rail members 24 and 25, and the frame members 21 and 22 are all The end portions of the vertical rail members 23a and 23b are in a lattice state to connect them.

As shown in FIGS. 4, 8, 10 and the like, the split grid receiving net 20b on the tip side is formed in an arc shape as viewed in the direction along the handle cylinder axis 3a along the circumferential direction of the handle cylinder 3. And the first vertical beam member 23a of the stock split-side grid receiving net 20a formed of a band metal plate formed so that the thickness direction is along the axis of the handle cylinder and the width direction is along the radial direction of the handle cylinder. A plurality of first vertical rail members 23a formed so as to have the same horizontal width H1 as the first horizontal rail members 24a of the stock split side grid receiving network 20a. Cross member 2
4, a plurality of second horizontal rail members 25 made of the same material as the second horizontal rail members 25 of the stock split side grid receiving net 20a, and a strip metal plate in a direction along the handle shaft axis 3a. Are formed by combining the two frame members 21 and 22 in the following lattice state. That is, the plurality of first vertical bar members 23a are arranged in parallel in the direction along the handling cylinder axis 3a at the same vertical bar member interval as the vertical bar member interval of the stock split side grid receiving network 20b. The first horizontal rail member 24 and the second horizontal rail member 25 are arranged side by side at the same horizontal rail member interval as the horizontal rail member interval of the stock split side grid receiving network 20b in the direction along the handling cylinder circumferential direction. A plurality of second horizontal rail members 25 are provided between the first horizontal rail members 24, on the stock side of the first horizontal rail member 24, and on the tip side of the other first horizontal rail member 24. Are present in a lattice state. Further, the first horizontal rail member 24 is also connected to the second horizontal rail member 2.
5 also penetrates the through hole of the first vertical bar member 23a, and the first vertical bar member 23a located closest to the front end side of the split grid receiving network and the first vertical bar member 23a positioned closest to the rear end side of the split grid receiving network. Connect the ends of all the horizontal rail members 24 and 25, and the frames 21 and 22 are in a lattice state connecting the ends of all the vertical rail members 23a.

When the split grid receiving net 20a on the stock side and the split grid receiving net 20b on the tip side are connected to each other by the positioning pins 21a, all the vertical beam members 23a of the split grid receiving net 20b on the tip side are connected to each other. Both split grid networks are arranged such that all the vertical grid members 23a and 23b of the split grid receiving net 20a on the stock side are paired with each other and arranged in a row of vertical grid members along the circumferential direction of the handling cylinder. The vertical beam member arrangement of 20a and 20b is set.

That is, one vertical bar member 23a, 23b of the stock split side grid receiving network 20a and the vertical bar members 23a, 23
3b, and one vertical cross-member 23a of the tip-side divided lattice receiving net 20b arranged in a straight line in the circumferential direction of the drum.
0, one vertical bar member 26, 27 is formed, and the first horizontal bar member 24 and the second horizontal bar member 25 of the stock split side grid receiving network 20a and the first horizontal bar grid member 25 of the tip side split grid receiving network 20b are formed. One horizontal rail member 24 and the second horizontal rail member 25 form one horizontal rail member 24, 25 as the entire receiving net 20. Thereby, the receiving net 20 is composed of a plurality of vertical rail members 26 and 27 along the circumferential direction of the handling cylinder and a plurality of horizontal rail members 24 and 25 along the axial direction of the handling cylinder. A lattice receiving net is formed so as to be formed in a state of being aligned in the circumferential direction and the axial direction of the handling cylinder 3 and to have the same or almost the same size of all the meshes in a lattice state. The harvested culm is threshed in cooperation with the handling drum 3 which rotates around the axis 3a, and the thresh-processed material is leaked from the eyelet and supplied to the rocking sorting device 6.

As shown in FIG. 3 and FIG. 11, the first vertical bar member 23a of the stock split side grid receiving network 20a is connected to the first horizontal bar member 2a.
4 and the length L1 protruding from the second horizontal rail member 25 toward the handling cylinder 3 and the first vertical rail member 23 of the tip side split lattice receiving net 20b.
a from the first horizontal rail member 24 and the second horizontal rail member 25
Is the same as the length L1 protruding toward the first side, and the second vertical rail member 23b of the stock split side grid receiving network 20a is connected to the first horizontal rail member 24.
And a length L protruding from the second horizontal rail member 25 toward the handling cylinder 3.
2 is the first vertical beam member 23a of the stock split side grid receiving network 20a.
The projection length L1, and the tip side split lattice receiving net 20b
In addition, the second vertical rail member 23b of the stock split side grid receiving network 20a is further configured to have the first horizontal rail member 24 and the second horizontal rail member so as to be longer than the protruding length L1 of the first vertical rail member 23a. 25
The length D2 protruding from the side opposite to the handle cylinder side from the first side bar member 23a of the stock split side grid receiving network 20a is
4 and 25, the length D1 protruding to the side opposite to the handle cylinder side, and the first vertical bar member 23a of the tip side split lattice receiving net 20b is positioned from the horizontal bar members 24 and 25 to the opposite side to the handle cylinder side. Each of the crosspieces 23a and 23 is shorter than the protruding length D1.
The horizontal widths H1, H2 of b, 24, 25 and the combination are set. That is, the first vertical bar member 23a of the stock split side grid receiving network 20a and the first vertical bar member 23a of the tip side split grid receiving network 20b linearly arranged on the first vertical bar member 23a. In a part of the plurality of vertical rail members 26, 27 of the entirety 20, a part of the vertical rail members 26, the length L1 of the protrusion from the horizontal rail members 24, 25 to the handle cylinder side is the same over the entire length.
A vertical rail member 26 is formed. Stock split side grid receiving network 20
a, and a plurality of vertical rails in the entire receiving net 20 are formed by the first vertical rail member 23b of the tip-side divided grid receiving net 20b linearly arranged on the second vertical rail member 23b of FIG. Member 2
6 and 27, a vertical bar member 27 which is different from the first vertical bar member 26 and has a different projecting length from the horizontal bar members 24 and 25 to the handle cylinder side at one end side and the other end side. A member 27 is formed. In addition, the second vertical rail member 27 is located at the one of the one end side and the other end side of the cross section where the threshing transport device 1 is located, and the horizontal rail members 24, 2
5, the length L2 protruding toward the handling cylinder is longer than the protruding length L1 of the first vertical bar member 26, and the horizontal bar members 24, 2 are provided.
5, the length D2 protruding to the opposite side to the handling cylinder side is shorter than the first vertical bar member 26 by the second vertical bar portion 23b.
It is prepared for 7.

As the strip metal forming the second vertical rail member 23b of the stock split side grid receiving net 20a, the stock split side grid receiving net 2a is used.
0a, and a band metal sheet thicker than the band metal sheet forming the first vertical bar member 23a of the tip-side divided grid receiving net 20b. The thickness t2 of the second vertical bar 23b of the vertical bar 27 is determined by the thickness t1 of the first vertical bar 26 and the length of the second vertical bar 27 other than the second vertical bar 23b. The thickness is larger than the thickness t1 of the crosspiece.

Thus, when the tip side of the harvested grain culm, which is transferred between the handling drum 3 and the receiving net 20 by the threshing transport device 1, passes over the second vertical bar member 27, the second vertical bar portion 23b
The thrust-treated material such as threshing grains that are pushed away in the handling chamber by the grain stalks are received by the second vertical bar portion 23b while being moved toward the handling cylinder side so as to be easily subjected to the handling action by the handling cylinder 3. While making it easy to leak from the receiving net, the second vertical bar portion 23b becomes an obstacle to threshing products leaking between the pair of first vertical bar members 26 sandwiching the second vertical bar portion 23b. Threshing can be performed while making it difficult. The second vertical bar member 23b of the second vertical bar member 27 has a larger grain stalk transfer reaction force or threshing than the first vertical bar member 26 and portions other than the second vertical bar member 23b of the second vertical bar member 27. Although a reaction force is applied, the second vertical bar 23b and the second
Due to the thickness difference between the vertical bar portions other than the vertical bar portion 23b and the first vertical bar member 26, the second vertical bar portion 23b is provided with a strong bar strength while reducing the weight of the entire receiving net. Threshing can be performed while the action is firmly performed.

The first vertical bar member 23a of the stock split side grid receiving network 20a and the first vertical bar member 2 of the tip side split grid receiving network 20b.
3a, the length of the first vertical bar member 23a protruding from the horizontal rail members 24, 25 to the side opposite to the handle barrel side is determined by the first vertical rail member 23a from the horizontal rail members 24, 25. It is larger than the length protruding to the torso side. First vertical beam member 2
3a has a width H1 necessary for exhibiting the strength of the receiving net 20 while reducing the weight of the receiving net 20.
4 and 25, protrude to the side opposite to the handling cylinder side long,
Is guided so as to drop as much as possible below the threshing product that leaks.

The receiving net 20 is configured to be attached to the threshing unit based on the attachment structure shown in FIGS. That is, the front net guide 31 is supported on the inner surface side of the front side wall 30 of the handling room 2, and the rear net guide 33 is supported on the inner surface side of the rear side wall 32 of the handling room 2.
1 and the receiving net support portions 31a of the receiving net guide 33,
33a, which is located at a lower level than 33a, and
A front support member 35a for connecting a support rod 34 made of a round steel material in a direction along the front net guide 31 to a net support portion 31a of the front net guide 31.
And a rear support member 35b connected to the net support portion 33a of the rear net guide 33, and the net 20 extends over the front net guide 31, the rear net guide 33, the support rod 34, and the lower tongue plate 36. Is to be placed. In other words, of the plurality of vertical rail members 26, 27 of the receiving net 20, the vertical rail member 26 located closest to the front end side of the receiving net is placed on the net receiving support 31 a of the front receiving guide 31 and received and supported. . Of the plurality of vertical rail members 26, 27 of the receiving net 20, the vertical rail member 27 located at the most rear end side of the receiving net is placed on the receiving net support 33 a of the rear receiving net guide 33 and received and supported. . The frame 21 of the base-side divided lattice receiving net 20a and the frame 22 of the tip-side divided lattice receiving net 20b, which are engaged by the positioning pins 21a, are received and supported on the support rod 34. The mounting projection 23c provided on the lower end side of the base end of the second vertical rail member 23b of the base split grid receiving network 20a is placed on the inner surface side of the lower tongue plate 36 to be received and supported.

[Another Embodiment] As in the above embodiment, the first embodiment
The vertical bar member 26 is configured to protrude from the horizontal bar members 24 and 25 toward the handle cylinder side, and the projecting length L2 of the second vertical bar portion 23b is larger than the projecting length L1 of the first vertical bar member 26. The first vertical bar member 26 is configured not to protrude from the horizontal bar members 24 and 25 toward the handling cylinder side, and the second vertical bar portion 23b is configured to be the first vertical bar member. The object of the present invention can be achieved by adopting and implementing a configuration in which the projection protrudes longer to the handle cylinder side than 26.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of the entire threshing machine.

FIG. 2 is a vertical front view of the threshing unit.

FIG. 3 is a longitudinal side view of a part of the threshing machine.

FIG. 4 is a sectional view of a divided grid receiving net.

FIG. 5 is an explanatory diagram of a separated state of a divided grid receiving network.

FIG. 6 is a sectional view of a receiving net mounting structure.

FIG. 7 is a sectional view of the stock split side grid receiving net;

FIG. 8 is a cross-sectional view of the tip-side divided lattice receiving net.

FIG. 9 is a plan view of a stock split side grid receiving network;

FIG. 10 is a plan view of a tip-side divided lattice receiving net.

FIG. 11A is a perspective view of a part of the receiving net, and FIG.
Is a sectional view of a part of the receiving net

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 threshing transport device 2 handling room 3 handling cylinder 20 receiving net 23b second vertical bar portion 24, 25 horizontal bar member 26 first vertical bar member 27 second vertical bar member D1 Projection length of first vertical bar member D2 second Projection length of vertical bar t1 Plate thickness of first vertical bar t2 Plate thickness of second vertical bar

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinji Kotani 64 Ishizu-Kitacho, Sakai-shi, Osaka Inside Kubota Sakai Works

Claims (4)

[Claims] 1. A threshing machine wherein a front end side of a harvested grain culm is transported between a receiving net of a handling room and a handling drum by a threshing transport device to perform threshing processing. A plurality of vertical rail members along the circumferential direction and a plurality of horizontal rail members along the handling cylinder axis direction are combined in a lattice receiving net, and a second vertical part of a part of the plurality of vertical rail members is formed. The bar member is provided with a second vertical bar portion projecting from the horizontal bar member toward the handling cylinder side and protruding longer than a first vertical bar member different from the second vertical bar member. The length of the second vertical bar portion protruding from the horizontal bar member on the side opposite to the handle cylinder side is shorter than the length of the first vertical bar member protruding from the horizontal bar member on the side opposite to the handle cylinder side. Threshing machine. 2. A method according to claim 1, wherein each of said plurality of vertical rail members is formed of a strip along a thickness direction of a handle cylinder and a width direction thereof is along a radial direction of a handle cylinder, and each of said plurality of horizontal rail members is a wire rod. The threshing machine according to claim 1, which is prepared. 3. The plate thickness of the second vertical bar member of the second vertical bar member is greater than the plate thickness of the first vertical bar member.
The threshing machine described. 4. The second vertical bar member of the second vertical bar member,
The threshing machine according to any one of claims 1 to 3, wherein the threshing machine is provided only in a cross section of the second vertical cross member that is located on the threshing transport device side.