JP3408970B2 - Threshing equipment for self-contained combine - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a threshing device for a self-removing combine harvester.

[0002]

2. Description of the Related Art Conventionally, in a threshing device for a self-removing combine, a crimp net or an integrally molded synthetic resin was used as a receiving net.

[0003]

However, in the case where the crimp net is adopted as the receiving net as in the above-mentioned conventional technique, straw or the like is apt to be caught at a position where the vertical line and the horizontal line of the net material intersect with each other. Straws are caught and the downward leakage of grains through the mesh is suppressed,
It has a problem that the leakage processing capability in the receiving network is reduced. Further, the receiving net integrally formed of synthetic resin has a problem that it is easily worn and expensive. Therefore, in order to increase the processing capacity of the combine as a whole, as in recent years, there is a limit to the processing capacity of the above crimp nets and synthetic resin receiving nets when performing a large amount of cutting and threshing. It was Therefore,
It has been proposed to adopt the concave used in all culm throw type combine into the self-removing combine. That is, on the lower side of the handling cylinder, a plurality of vertical bars formed of arc-shaped strip plate members along the circumferential direction of the handling cylinder are arranged side by side in the axial direction of the handling cylinder. A receiving net configured in a lattice shape is provided by being erected and supported in a state of penetrating a plurality of horizontal bar members arranged in parallel along the direction. However, in the receiving net of this type, conventionally, all the horizontal bar members are arranged to be parallel to the rotation trajectory of the handling teeth, which is the outermost circumference of the rotation trajectory of the handling cylinder, along the axial direction of the handling cylinder. Since the distance between the start end of the treatment process and the end point where the culms are discharged and the end of the culm are kept constant, the culms that have been almost completely treated are transferred backward. At the rear part, the handling teeth act on the grain culm so as to squeeze only the grain culm, so that the rotation load of the handling barrel is extremely high and the load is concentrated on the rear side of the handling barrel. Therefore, there is a problem that straw breakage tends to occur.

The present invention has been made in view of the above circumstances, and provides a threshing device for a self-removing combine which can reduce the handling load on the handling cylinder and enhance the grain leakage performance. To aim.

[0005]

(Structure) The threshing device for a self-removing combine according to claim 1 of the present invention is an arc-shaped strip plate member extending below the handling cylinder in the circumferential direction of the handling cylinder. A plurality of vertical bars formed in parallel with each other in the axial direction of the handling cylinder,
A plurality of horizontal bar members arranged side by side along the circumferential direction of the handling cylinder are erected and supported in a state of penetrating in a state of being penetrated, and a net formed in a lattice shape is arranged, and a part of the horizontal bar members is provided. Things,
The distance between the rotation track of the handling cylinder and the outer peripheral surface is set to be small near the starting end point of the handling process and is set to be larger near the end point of the handling process where the grain stems are discharged. The configuration.

(Operation) According to the structure of claim 1 of the present invention, by providing the concave type receiving network,
As the strength of the net itself increases, the performance of leaking processed products such as grains is also improved.In addition, some of the horizontal bar members are separated from the handle teeth on the outer peripheral surface of the handle cylinder. Since it is set to be small near the starting point of the handling process and to be larger near the end point of the handling process, a part of the horizontal bar member is near the starting point of the handling process. In the same way as other horizontal bar members, the spacing between the handle and the handling tooth of the handling cylinder is set to be almost constant, which facilitates the shredding process and the handling near the discharge point of the grain culm. Since the gap between the handle teeth of the body is set larger than that of the other horizontal bar members, the processed object rotating around the receiving surface of the receiving net can escape at that horizontal bar member position. However, the escape will reduce the handling load on the handling cylinder. .

(Effect) Therefore, according to the structure of claim 1 of the present invention, the handling load can be reduced, the grain leakage performance can be enhanced, and the occurrence of cutting straw can be suppressed, and the untreated portion can be left untreated. It has become possible to make it less likely to occur.

(Structure) The threshing device for a self-removing combine according to claim 2 of the present invention is the device according to claim 1, wherein the part of the horizontal bar member is one of the vertical bars. A characteristic configuration is that the one disposed in one end in the axial direction of the handling cylinder and the one disposed in the other end are erected and supported so as to penetrate all of the vertical bars between them.

(Operation) According to the configuration of claim 2 of the present invention, a part of the horizontal bar member is
Since it is erected and supported so as to penetrate all the vertical bars between the one arranged at one end in the axial direction of the handling cylinder and the one arranged at the other end, it is obliquely provided between the vertical bars. With this horizontal bar member provided in a penetrating state, the vertical rail is reinforced in cooperation with other horizontal bar members.

(Effect) Therefore, according to the structure of claim 2 of the present invention, the strength of the horizontal rod member of the receiving net can be increased and the durability can be improved.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. FIG. 1 shows an example of a threshing device for a self-removing combine. As shown in FIG. 1 to FIG. 3, by feeding and holding the root side of the cutting grain culm by the feed chain 1, the tip side of the cutting grain culm is supplied to the handling chamber 2 and the front and rear direction of the threshing device. The threshing process is carried out by transferring between the handling cylinder 3 which rotates around the shaft core 3a and the receiving net 20, and the threshing discharge straw is carried out by the feed chain 1 from the discharge port 4 at the rear of the handling chamber 2 and discharged. The threshing unit is configured to be discharged to the outside of the threshing device from the discharge port at the rear of the threshing device by the straw conveying chain 5. The outlet 4
Rotate around the axis of the threshing device along the lateral width of the threshing device while transporting threshing dust such as broken straw discharged from The reprocessing unit is configured so as to remove the grains from the threshing dust by performing the loosening process by the processing cylinder 8 for removing the grains. The swing selecting device 6 whose front end side is located below the handling chamber 2, and the first blower device 11 having a rotary fan 11a located below the front end of the swing selecting device 6, the first blower device 11
The second air blower 1 located on the rear side of the airframe of the air blower 11
2. The swing chamber 6 is provided with a third blower 13 having a rotary fan 13a located below the rear end of the swing sorting device 6, and the like.
The threshing processed material that has leaked from the receiving net 20 and is supplied by dropping, and the processed material that drops from the reprocessing section are received by the swing sorting device 6 and conveyed to the rear side of the machine body in the direction along the axis of the handling cylinder. While performing the sorting process, each blower device 11, 12,
The sorting wind from 13 is applied to perform a wind sorting process, and the sorting dust is discharged together with the sorting wind from the dust outlet 14 to the outside of the threshing device, or is sucked by the dust exhaust fan 15 to be discharged to the outside of the threshing device. It constitutes a sorting unit. A No. 1 screw conveyor 16 that carries out the No. 1 processed product from the rocking sorting device 6 to the outside of the threshing device, and a No. 2 screw conveyor 17 that carries out the No. 2 processed product from the shaking sorting device 6 to the outside of the threshing device. It is provided at the bottom of the sorting unit, and the processed product from the No. 2 screw conveyor 17 is received by discharging it into the threshing device by pumping it near the rear of the threshing device on the lateral outside of the threshing device by the reducing device 18 consisting of the screw conveyor. It is configured to pass through between the net 20 and the side wall of the threshing device to be returned to the front end side of the swing sorting device 6.

The left and right sides of the threshing device body are controlled by a guide device 19a connecting the sorting frame 6a of the swing sorting device 6 to the front end side of the sorting frame 6a and a drive device 19b connected to the rear end side of the sorting frame 6a. It is supported so as to be swingable over the lateral side wall, and the Glen pan 6b, the chaff sheave 6c, the Straw rack 6d, and the Glen sheave 6c located below the chaff sheave 6c are arranged in the upper part of the sorting frame in a direction along the axis of the handling cylinder. The swing selection device 6 is configured by integrally supporting 6e and the like on the selection frame body 6a so as to be swingable. That is, the threshing-processed matter that has leaked through the net 20 from the front side of the handling room 2 is received by the grain pan 6b and transferred to the rear side of the machine body to be roughly sorted into the grain and the dust, and the treated matter from the grain pan 6b is chaff-sieved. 6c, while carrying it to the rear of the machine to perform a precise sorting process on the grain and dust, and the processed product leaking through the chaff sheave 6c is further subjected to a precise sorting process by the Glen sieve 6e to obtain the Glen sieve 6e.
No. 1 sorted product from No. 1 screw conveyor 16
Then, the No. 2 sorted products are dropped and supplied to the No. 2 screw conveyor 17, respectively. The chaff sheave 6c and the processed product from the reprocessing unit are sorted into grains and dust such as broken straw, and the grains are dropped and supplied to the No. 2 screw conveyor 17,
Dust is discharged from the dust outlet 14 to the outside of the machine body.

The first blower 11 includes the Glen pan 6b.
The rotary fan 11a located near the lower part of the rotary fan and an intake port 11b on the front side of the rotary fan 11a.
An exhaust port 11 is provided on the upper side of the second blower 12 on the rear side of 1a.
and a fan case that forms c, respectively. The rotary fan 11a sucks air from the front end side of the sorting unit,
The sorting air is supplied from 1c so as to blow through the sorting frame 6a from the lower side to the upper side through the upper side of the second blower 12, and the sorting operation portion between the Glen pan 6b and the chaff sheave 6c, and the front end side of the chaff sheave 6c. It is configured so that it is supplied to the sorting action section and acts on the processed material of this sorting action section. That is, the sorting wind is made to act on the roughly sorted products from the Glen pan 6b of the swing sorting device 6.

The second air blower 12 is made of Kara-no-hi with rotating blades 12a and supplies the selected wind so as to blow through the selection frame 6a from the lower side to the upper side, and the air selection path section below the chaff sheave 6c and the Glen sieve 6e. The chaff sheave 6c is supplied to the sorting operation portion by the rear end portion thereof and the straw rack 6d so as to act on the processed products of the wind selection path portion and the sorting operation portion. That is, the sorting wind is applied to the finely sorted product by the chaff sheave 6c and the Glensieve 6e of the swing sorting device 6 and the sorted product by the Straw rack 6d.

The third blower 13 has the rotary fan 13a located between the first screw conveyor 16 and the second screw conveyor 17, and an intake port 13b below the rotary fan 13a. It consists of a fan case that forms an exhaust port 13c on the upper side, and the rotary fan 13a inhales air from below the threshing device, and the sorting air is passed from the exhaust port 13c above the second screw conveyor 17 and the sorting frame 6a from the upper side. It is configured so that it is blown through to the sorting operation section and is supplied to the sorting operation section by the straw rack 6d so that it acts on the sorted products by this sorting operation section.

As shown in FIG. 3, 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. The two divided grid receiving networks 20a and 20b are created by combining them as follows. That is, as clearly shown in FIGS. 5 and 6, a positioning pin 21a included in the frame body 21 of the divided lattice receiving net 20a, which is located on the stocker side of the threshing culm, of the divided lattice receiving nets 20a and 20b. And the frame body 22 of the divided grid receiving net 20b located on the tip side of the threshing culm to engage the two divided grid receiving nets 20a and 20b with each other in the direction along the handling barrel axis 3a. The receiving net 20 is formed by combining the meshes so that they are engaged with each other so as not to be displaced.

As shown in FIG. 5, FIG. 8, FIG. 10, etc., the split lattice receiving net 20a on the stocker side is an arc when viewed along the circumferential direction of the handling barrel 3 along the handling barrel axis 3a. A plurality of first vertical rail members 23a as vertical rails made of strip metal formed in a shape, and a strip metal formed in an arc shape when viewed along the circumferential direction of the handling barrel 3 along the handling barrel axis 3a. And a plurality of second vertical rail members 23b as vertical rails having a width larger than that of the first vertical rail member 23a, and a straight line in an oblique posture that is farther away from the handle teeth 40 of the handle body 3 toward the rear side. Of the first horizontal rail member 24 as a horizontal bar member made of a round bar steel material, and the first horizontal rail member along the handling barrel axis 3a so as to have elasticity richer than that of the first horizontal rail member 24. A plurality of second horizontal rail members 25 as horizontal bar members made of a linear steel wire having an outer diameter smaller than that of the member 24; And the frame 21, 22 two consisting in the direction of strip sheet metal along the thresher axis 3a are prepared by combining the following such grid state. That is, a plurality of the first vertical rail members 23a and the second vertical rail members 23b are juxtaposed in the direction along the handling barrel axis 3a with a predetermined vertical rail member interval therebetween, and between the second vertical rail members 23b. And a plurality of second vertical rail members 23
b, the front side of the second vertical rail member 23b located closest to the front end side of the divided grid receiving net, and a plurality of second vertical rail members 23b.
There are a plurality of first vertical rail members 23a on the rear side of the second vertical rail member 23b located closest to the rear end side of the divided grid net, and a plurality of first horizontal rail members 24 are provided. And the second horizontal rail member 25 are juxtaposed in the direction along the circumferential direction of the handling cylinder at a predetermined horizontal rail member interval, and between the first horizontal rail members 24,
A plurality of second horizontal rail members 25 are provided on each of the root side with respect to the first horizontal rail member 24 on one side and the tip side with respect to the first horizontal rail member 24 on the other side. Furthermore, both the first horizontal rail member 24 and the second horizontal rail member 25 are connected to the first vertical rail member 23.
a and the first vertical rail member 23a which is inserted through the rail holes of the second vertical rail member 23b and is located closest to the front end side of the divided grid receiving net, and the first vertical rail member 23a which is located closest to the rear end side of the divided grid receiving network. Are connected to each other at the end portions of all the horizontal rail members 24 and 25, and the frames 21 and 22 are connected to each other at the end portions of all the vertical rail members 23a and 23b in a lattice state.

As shown in FIG. 4, FIG. 8, FIG. 10, etc., the split-lattice net 20b on the tip side is arcuate when viewed along the circumferential direction of the handling barrel 3 along the handling barrel axis 3a. A plurality of first vertical rail members 23a serving as vertical rails, which are made of strip sheet metal formed in the same manner and have the same horizontal width as the first vertical rail members 23a of the stock-side divided grid receiving net 20a; A first horizontal bar member made of the same material as that of the first horizontal rail member 24 of the original-side divided grid receiving net 20a and having a diagonal posture in which it is separated from the handle teeth 40 of the handle body 3 toward the rear side. 1
Two horizontal rail members 24, a plurality of second horizontal rail members 25 as horizontal bar members made of the same material as the second horizontal rail member 25 of the stock-side split grid receiving net 20a, and a handle shaft The two frame bodies 21 and 22 made of strip metal plate in the direction along the core 3a are combined and formed in the following lattice state. That is, a plurality of the first vertical rail members 23a are arranged in parallel in the direction along the handling barrel axis 3a with the same vertical rail member spacing as the vertical rail member spacing of the stocker side divided grid receiving net 20b. The first horizontal rail member 24 and the second horizontal rail member 25 are juxtaposed in the direction along the circumferential direction of the handling cylinder at the same horizontal rail member spacing as the horizontal rail member spacing of the stocker side divided grid receiving net 20b. A plurality of second horizontal rail members 25 are provided between the first horizontal rail members 24, on the root side of the first horizontal rail member 24 on one side, and on the tip side of the first horizontal rail member 24 on the other side. Are in the lattice state. Further, both the first horizontal rail member 24 and the second horizontal rail member 25 are inserted through the rail holes of the first vertical rail member 23a, and are located at the first end 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 located closest to the rear end side of the divided grid receiving net connect the ends of all the horizontal rail members 24 and 25, and the frame bodies 21 and 22 are connected to each other. The end portions of the vertical rail member 23a are connected to each other in a lattice state.

As described above, both split grid receiver networks 20a, 2
As shown in FIG. 3 and FIG. 11, the first cross rail member 24 at 0b is made of a round bar steel material that is separated from the handle teeth 40 of the handle body 3 toward the rear side. The grain culm on the rear side of the handle 40
It becomes easier to escape toward the first horizontal rail member 24, and the handling load can be reduced toward the rear side in the direction of the handling barrel axis 3a, and the occurrence of breakage straws is suppressed.

When the split-grid receiving net 20a on the stocker 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 rail members 23a of the split-grid receiving net 20b on the tip side, Both of the split grid nets are arranged such that all the vertical crosspiece members 23a and 23b of the split grid receiving net 20a on the stock maker side are paired and arranged in a row of the vertical crosspiece members along the circumferential direction of the handling cylinder. A vertical rail member array of 20a and 20b is set.

That is, one vertical rail member 23a, 23b of the stocker side divided grid receiving net 20a and the vertical rail member 23a, 2
3b and the vertical bar member 23a of the tip side divided grid receiving net 20b aligned in a straight line in the circumferential direction of the handle, the receiving net 2
0 forms one vertical rail member 23 as a whole, and the first horizontal rail member 24 and the second horizontal rail member 25 of the stocker side divided grid receiving net 20a and the first horizontal rail of the tip side divided grid receiving net 20b. Cross member 24
And the second horizontal rail member 25, one horizontal rail member 24, 25 is formed as the receiving net 20 as a whole.
Thereby, the receiving net 20 forms the grain leakage meshes in which the plurality of vertical rail members 23 and the plurality of horizontal rail members 24 and 25 are arranged in the circumferential direction and the axial direction of the handling cylinder 3. And to
The lattice mesh is a lattice mesh that is assembled in a lattice state so that all the mesh sizes are the same or almost the same.
The cut grain culms are threshed in cooperation with the handling cylinder 3 which rotates around, and the threshed material is allowed to leak from the mesh and supplied to the swing sorting device 6.

The receiving net 20 is configured to be attached to the threshing portion based on the attaching structure shown in FIGS. That is, the front receiving net guide 31 is supported on the inner surface side of the front side wall 30 of the handling chamber 2, and the rear receiving net guide 33 is supported on the inner surface side of the rear side wall 32 of the handling chamber 2, respectively. Receptive mesh support portions 31a and 33a of the mesh guide 33, respectively
A front support member 35a for connecting a support rod 34, which is located at a lower level than the above, and which is made of a round steel material in a direction along the handling barrel axis 3a, to the net support portion 31a of the front net guide 31, and a rear net guide. It is attached over the rear support member 35b connected to the receiving net support portion 33a of 33, so that the receiving net 20 is placed over the front receiving net guide 31, the rear receiving net guide 33, the supporting rod 34, and the lower tongue plate 36. There is. That is, receiving network 2
The vertical rail member 23, which is located closest to the front end of the receiving net among the plurality of vertical rail members 23, is placed on the receiving net support portion 31a of the front receiving net guide 31 to receive and support it. Of the plurality of vertical cross-piece members 23 of the receiving net 20, the vertical cross-piece member 23 located closest to the receiving net rear end side is used as the receiving net support portion 3 of the rear net-receiving guide 33.
It is placed on 3a to receive and support. The positioning pin 2
The frame 21 of the stock-side divided lattice receiving net 20a and the frame 2 of the tip side divided lattice receiving net 20b which are engaged with each other by 1a.
2 and 2 are placed on the support rod 34 to receive and support them.
The mounting protrusion 23c provided on the lower end side of the stock-source-side end of the second vertical rail member 23b of the stock-source-side divided grid receiving net 20a is placed on and supported by the inner surface of the lower tongue plate 36.

[Brief description of drawings]

1 is a vertical side view of the entire threshing device.

[Fig. 2] Front view in vertical section of the threshing section

FIG. 3 is a sectional view of a receiving net.

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 cross-sectional view of the receiving net attachment structure.

FIG. 7 is a cross-sectional view of a split grid receiving net on the stockholder side

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

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

FIG. 10 is a plan view of the tip side divided grid receiving net.

FIG. 11 is a vertical sectional side view showing a handling cylinder, a net, etc. in the threshing device.

[Explanation of symbols]

2 handling room 3 handle 20 Receiving network 23 Vertical cross 24,25 horizontal bar members 40 handle teeth

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinji Otani 64, Ishizukita-machi, Sakai City, Osaka Inside the Kubota Sakai Plant (56) Reference JP-A-6-276837 (JP, A) JP-A-9- 187151 (JP, A) Actual development 58-24153 (JP, U) Actual development 3-61836 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01F 12/24

Claims (2)

(57) [Claims] 1. A plurality of vertical bars, which are arcuate band plate members extending along the circumferential direction of the handling cylinder, are arranged below the handling cylinder in the axial direction of the handling cylinder, and the vertical bars are provided on the vertical bars. A plurality of horizontal bar members arranged side by side along the circumferential direction of the handling cylinder are erected and supported in a state of penetrating in a state of being penetrated, and a net formed in a lattice shape is arranged, and a part of the horizontal bar members is provided. A threshing device for a self-removing combine, wherein the distance between the handle and the treating teeth of the handling cylinder is set to be larger at a location near the exit of the handling room than at a location near the entrance of the handling room. 2. The part of the horizontal bar member,
The vertical bars are erected and supported so as to penetrate all the vertical bars between one of the vertical bars arranged at one end in the axial direction of the handling cylinder and one arranged at the other end. The self-removing combine threshing device according to 1.