JPH11266672A - Thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thresher for carrying out a threshing treatment by supplying a reaped grain culm to a threshing room by a threshing and conveying device, in a state in which the threshing treatment is efficiently carried out while hardly causing dust. SOLUTION: This thresher carries out a threshing treatment by supplying the ear tip side of a reaped grain culm to between a threshing cylinder 3 and a receiving lattice net 20 by a threshing feed chain. The protruding lengths of front side longitudinal crosspiece members 23 positioned at the front side of the receiving net 20 in the longitudinal crosspiece members 23 and 26 of the receiving lattice net 20 protruding from a lateral crosspiece member 25 are regulated so as to be longer than the protruding lengths of the rear side longitudinal crosspiece members 26 positioned at the rear side of the receiving net protruding from the lateral crosspiece member 25 to the threshing 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. An object of the present invention is to provide a threshing machine which is compact, can efficiently thresh while suppressing generation of dust and the like, and is less likely to cause clogging of receiving nets 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 cross members along the direction and a plurality of horizontal cross members along the handling cylinder axis direction are configured with a lattice receiving net,
The front vertical rail member located on the front end side of the network among the plurality of vertical rail members protrudes from the horizontal rail member toward the handle cylinder side longer than the rear vertical rail member located on the rear end side of the net receiving side.

[Effect] 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 is easily leaked quickly, the mesh is excellent in the size of the mesh. In this way, the receiving net strength is exhibited.

At the front end side of the receiving net, threshing is performed on the cereal culm in a state where it is susceptible to movement resistance by the vertical bar member and approaching to the handling cylinder side, and at the rear end side of the receiving net, the cereal culm is moved by the vertical bar member. Threshing is performed in a state where it is hard to receive resistance or approach to the cylinder side. That is, when the grain stalk receives a movement resistance or is brought to the handling drum side, the grain stalk is more susceptible to the handling action and is likely to shed, and the thresh grains are more likely to leak from the receiving net. When the cereal stems are less likely to receive the movement resistance and move more smoothly and are less likely to be moved toward the handling cylinder side, the threshing load applied to the handling cylinder is reduced, and cutting straws are less likely to occur. In addition, if the handling action at the rear end of the receiving net is excessive, the grain is small, so that broken straw tends to be generated, and in particular, it is easy to shatter and the straw at the rear end of the receiving net increases. In the case of cereal stems, dust such as broken straw is likely to be generated. As a result, all the vertical bar members protrude long from the horizontal bar members toward the handling cylinder side, and as compared with threshing while giving movement resistance to the grain culm over the entire length of the receiving net or giving a shift to the handling cylinder side. In addition, threshing is performed while reducing the threshing load while minimizing the generation of dust such as broken straw. In addition, all vertical bar members do not protrude from the horizontal bar member to the handling cylinder side, or even if they protrude, the handling is insufficient compared to threshing while moving the grain culm smoothly over the entire length of the receiving net. Threshing is performed while making it difficult. As a result, even if a relatively large amount of cereal stalk is supplied to the handling room or the cereal stalk moisture is relatively high, the threshing material is clogged with a small receiving net for the cereal stalk supply amount. Threshing can be carried out while quickly leaking in a difficult condition, and while suppressing generation of dust and threshing.

[Effects] The ears of the harvested grain culm can be supplied to the handling room by a threshing transport device to perform threshing while suppressing the number of damaged grains. Threshing can be performed efficiently by supplying or supplying a large amount, and it is possible to obtain a state in which threshing dust is hardly generated and a shortage of handling is hardly generated. Particularly, in the case of a cereal culm which is easy to shed, it is advantageous because the generation of dust and damaged kernels can be effectively suppressed. In addition, the threshing unit can be downsized, and a combine that is easy to operate and easy to handle can be configured.

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

[Structure] In the structure according to the first aspect of the invention, the rear vertical bar member located on the rear side of the receiving net protrudes from the horizontal bar member to the handle barrel side.

[Effect] The rear vertical rail member also exerts an action of imparting movement resistance to the grain culm, so that threshing at the rear end side of the receiving net can be improved and threshing can be performed. .

[Effect] The performance of threshing at the trailing end side of the receiving net and collection of paddy rice are improved, and threshing can be performed while suppressing grain shortage and grain loss even in the case of grain culms which are relatively difficult to shed.

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

[Constitution] In the constitution according to the first aspect of the present invention, the plurality of vertical rail members are formed of strips whose thickness direction is along the axis of the handle cylinder and whose width is along the radial direction of the handle cylinder.

[Effect] In order to easily exert the action of imparting movement resistance to the grain stem to the vertical cross member, and to easily exert the receiving net strength to the vertical cross member, so that a desired lattice receiving net can be easily obtained. Is what you do.

[Effects] It is possible to easily obtain a lattice receiving net which exerts an action such as imparting movement resistance to a grain stem as desired, and to obtain a threshing machine capable of efficiently threshing and inexpensively.

[0017]

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 to the rear end of the sorting frame 6a. 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 air blower 12 is made of Karamin having rotating blades 12a. The second air blower 12 supplies a sorting wind so as to blow through the sorting frame 6a from the lower side to the upper side, and a wind selecting 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 FIG. 4, FIG. 7, FIG. 9, etc., the divided grid receiving net 20a on the stock side is formed in an arc along the circumference of the handle cylinder 3a along the circumferential direction of the handle cylinder 3. Formed into a shape,
Further, a plurality of the first vertical rail members 23a made of a strip metal plate formed so that the plate thickness direction is the handling cylinder axis direction and the width is along the handling cylinder radial direction, and the handling is performed along the circumferential direction of the handling cylinder 3. The second vertical beam member 26a is formed of a band sheet metal formed in an arc shape as viewed in the direction along the trunk axis 3a, and formed so that the plate thickness direction is in the direction of the trunk axis and the width is in the radial direction of the trunk. Plural pieces and handling cylinder axis 3
a first cross beam member 2 made of a linear round bar steel material in a direction along a
4 and the first horizontal rail member 24 so as to extend along the handling cylinder axis 3a and have a greater elasticity than the first horizontal rail member 24.
And a plurality of second horizontal rail members 25 made of a straight steel wire rod having a smaller outer diameter than the handlebar shaft core 3 along the circumferential direction of the handlebar.
a pair of frames 27 formed in an arc shape as viewed in the direction along the line a.
a and 28a and the two frame members 21 and 22 made of a sheet metal in the direction along the handling cylinder axis 3a are combined in the following lattice state. That is, the plurality of first vertical rail members 23a and the second vertical rail members 26a are arranged side by side at predetermined vertical rail member intervals in the direction along the handling barrel axis 3a, and the plurality of first horizontal rail members 24a are arranged. And the second horizontal rail member 25 are arranged side by side at a predetermined horizontal rail member interval in a direction along the circumferential direction of the handling cylinder, and between the first horizontal rail members 24 and one of the first horizontal rail members 24. A lattice state is provided in which a plurality of second horizontal rail members 25 exist on the stock side and on the tip side of the other first horizontal rail member 24, respectively. 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 26a, and the front frame member 2 of the frame members 27a and 28a is formed.
7a connects the front end portions of all the horizontal rail members 24, 25, and the rear frame 28a of the frame members 27a, 28a connects the rear end portions of all the horizontal rail members 24, 25, The frame members 21 and 22 are in a lattice state connecting the frame members 27a and 28a to the ends of all the vertical rail members 23a and 26a.

As shown in FIGS. 4, 8 and 10, etc., the divided grid receiving net 20b on the tip side is formed in an arc shape as viewed in a 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 beam members 23a formed so as to have the same horizontal width as the above, and a circular arc shape as viewed in a direction along the handling cylinder axis 3a along the circumferential direction of the handling cylinder 3; It is made of a sheet metal 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, and has the same width as the second vertical bar member 26a of the stock split side grid receiving network 20a. And a plurality of the second vertical rail members 26a formed on the base and the first horizontal side of the stock split side grid receiving network 20a. The composed of the same material as the members 24 1
The second horizontal rail member 2 made of the same material as the two horizontal rail members 24 and the second horizontal rail member 25 of the stock split side grid receiving network 20a.
5 and a pair of frame members 27a, 2 formed in an arc shape as viewed in a direction along the handle cylinder axis 3a along the handle cylinder circumferential direction.
8a and the two frame members 21 and 22 made of a sheet metal in the direction along the handling cylinder axis 3a are formed by combining them in the following lattice state. That is, the plurality of first vertical beam members 23
a and the second vertical bar member 26a are arranged in parallel in the direction along the handling axis 3a at the same vertical bar member interval as the vertical bar member interval of the stock split side grid receiving network 20b, and a plurality of first horizontal members are provided. The crosspiece member 24 and the second horizontal crosspiece member 25 are arranged side by side at the same horizontal crosspiece member interval as the horizontal crosspiece member spacing 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 present between the 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. It is in a lattice state. 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 26a, and the frame bodies 27a,
The front frame 27a of all the rails 24, 2
5 are connected to each other, the rear frame 28a of the frames 27a and 28a is connected to the rear ends of all the cross members 24 and 25, and the frames 21 and 22 are connected to the frames. 27
a, 28a and the ends of all the vertical rail members 23a, 26a are connected in a lattice.

In each of the split grid receiving net 20a on the stock side and the split grid receiving net 20b on the tip side, as shown in FIG. 11, about half of the vertical cross members 23a and 26a The length L1 of each of the plurality of front vertical bar members 23a located on the front end side of the divided grid receiving networks 20a, 20b at 23a protrudes from the horizontal bar members 24, 25 toward the handle cylinder side,
Each of the rail members 23a is arranged such that all the rear vertical rail members 26a located on the rear side of the front vertical rail member 23a are longer than the length L2 protruding from the horizontal rail members 24, 25 to the handling cylinder side. , 26a, 24, 25 are assembled. The protruding length L1 of the front vertical bar member 23a in the split grid receiving net 20a on the stock base side is made equal to the protruding length L1 of the front vertical bar member 23a in the split grid receiving network 20b on the tip side. The protruding length L2 of the rear vertical rail member 26a in the split grid receiving net 20a on the side and the split grid receiving net 2 on the tip side
The projecting length L2 of the rear vertical rail member 26a at 0b is the same. In addition, the split grid receiving network 20a on the stock company side
And the split grid receiving net 20b on the tip side is the positioning pin 2
1a, the divided grid receiving net 20 on the tip side
b, and all of the vertical rail members 23a, 26a of the split grid receiving network 20a on the stock side are paired with each other, and one row of the vertical rails along the circumferential direction of the handling cylinder. The vertical beam member arrangement of both divided grid networks 20a and 20b is set so as to be arranged in the beam member row.

That is, one vertical cross member 23a, 26a of the stock split side grid receiving network 20a, and the vertical cross members 23a, 2
One vertical rail members 23a, 26a of the tip-side divided lattice receiving net 20b arranged in a straight line in the circumferential direction of the handling cylinder with respect to 6a form one vertical rail member 23, 26 as the whole receiving net 20. And the first horizontal rail member 24 of the stock split side grid receiving network 20a.
And the second horizontal rail member 25 and the first horizontal rail member 24 and the second horizontal rail member 25 of the tip-side split lattice receiving net 20b, one horizontal rail member 24, 25 as the whole receiving net 20.
Is formed. Thereby, the receiving net 20 is used for the grain leakage drop-out in which the plurality of vertical rail members 23 and 26 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 a lattice receiving net combined in a lattice state so that the size of all the meshes is the same or almost the same. The harvested culm is threshed by cooperation, and the thresh-processed product is leaked from the eyelet and supplied to the rocking sorting device 6. further,
The receiving net 20 has a plurality of front vertical rail members 23 located on the front side of the network among the plurality of vertical rail members 23 and 26, which are longer than the rear vertical rail members 26 located on the rear end side of the receiving net. Cross member 24,
A grid receiving net protruding from the side 25 to the handling cylinder side is provided. The movement resistance given to the grain culm by the vertical bar members 23 and 26 and the action of bringing the grain culm to the handling cylinder side by the vertical bar members 23 and 26 are received. At the front end side of 20, the threshing process is performed in a state where it is larger than the rear end side.

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. That is, the front frame body 27 of the receiving net 20 is placed on the receiving net support portion 31a of the front receiving guide 31 and received and supported. Receiving network 20
The rear frame 28 is connected to the receiving support 33 of the rear receiving guide 33.
Put on and support it. The positioning pin 21
a of the base-side divided lattice receiving net 20a and the frame 22 of the tip-side divided lattice receiving network 20b engaged with each other
Are placed on the support rod 34 and received and supported. The mounting projection 23c provided on the lower end side of the stock-side end portion of the vertical rail members 23a, 26a of the stock-side divided lattice receiving network 20a,
It is placed on the inner surface side of the lower tongue plate 36 and received and supported.

[Alternative Embodiment] As shown in the above-described embodiment, the rear vertical bar member 26 employs a configuration in which the respective bar members are combined so that the rear vertical bar member 26 projects from the horizontal bar members 24 and 25 toward the handle cylinder side. The handling barrel side end of the side vertical rail member 26 and the horizontal rail members 24, 2
A configuration may be adopted in which the cross members are combined so that the handling cylinder side end of No. 5 is flush with the end.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional 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. 11 is a longitudinal sectional side view of a part of a lattice receiving net.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 threshing transport device 2 handling room 3 handling cylinder 20 receiving net 23 front vertical bar member 24, 25 horizontal bar member 26 rear vertical bar member

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshiyuki Kono 64 Ishizukita-cho, Sakai-shi, Osaka Inside Kubota Sakai Works

Claims (3)

[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 axis of the handling cylinder are combined with a lattice receiving net, which is located on the front end side of the receiving net of the plurality of vertical rail members. A threshing machine in which the front vertical rail member is longer than the rear vertical rail member located on the rear end side of the receiving net and protrudes from the horizontal rail member toward the handling cylinder. 2. The threshing machine according to claim 1, wherein the rear vertical bar member located on the rear side of the receiving net protrudes from the horizontal bar member toward the handle cylinder side. 3. The threshing machine according to claim 1, wherein the plurality of vertical rail members are formed of strips whose thickness direction is the axial direction of the cylinder and whose width is along the radial direction of the cylinder.