JP2002315428A - Threshing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve winnowing efficiency and accuracy of a threshing machine, facilitate production and assembling at a low cost. SOLUTION: This threshing machine is obtained by composing a suction and dust discharge fan 20 of a crossflow fan part 21, installing an outer casing 26 communicating to a winnowing chamber 7 with a suction opening 27 in a lateral part in a side plate 25 of a machine body on the lateral side of the crossflow fan part 21 and further providing a suction fan 30 in the lateral part in the interior of the outer casing 26 in the threshing machine equipped with the winnowing chamber 7 arranged for carrying out winnowing treatment of a threshed material threshed in a threshing chamber 2 by blasting from a blasting fan mill 5 and shaking of a shaking separation rack 8 and further the suction and dust discharge fan 20 installed on the side of a terminal end of the winnowing chamber 7 and capable of discharging dust, to the outside of the machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine.

[0002]

2. Description of the Related Art Japanese Patent Publication No. 6-24448 discloses a cross-flow fan-shaped suction / discharge fan. In addition, Japanese Patent Publication No. 7-85690 discloses a plate-shaped suction / discharge fan.

[0003]

Among the above-mentioned known examples, the cross-flow fan can suction uniformly at any place in the width direction by sucking the air in parallel with the blowing direction of the blowing fan, so that uneven suction is generated. On the other hand, on the other hand, there is a problem that even if the wind screening object discharged from the threshing room is discharged to one side, the effect of diffusing it is weak, and in this respect, the wind screening efficiency is low. In addition, since the suction force of the plate-type suction and exhaust fan is strong near the fan and weakens when separated,
There is a problem that uneven suction occurs. The present invention has been made to solve the above problem by devising a suction and exhaust fan.

[0004]

The object of the present invention is to improve the efficiency and accuracy of wind selection, to simplify manufacturing and assembly, and to reduce costs.

[0005]

According to the present invention, there is provided a wind selection chamber 7 for subjecting threshed threshed in the threshing chamber 2 to wind selection by blowing air from a blower fan 5 and rocking a rocking sorting shelf 8; A suction / discharge fan 20 for discharging dust and the like to the outside of the machine is provided at the end side of the wind selection chamber 7.
Is provided with an outer casing 26 communicating with the wind selection chamber 7 and a side suction opening 27 on a machine body side plate 25 on the side of the cross flow fan section 21. Is a threshing device provided with a side suction fan 30. The present invention is a threshing apparatus in which the combined left and right width of the suction / discharge fan 20 and the side suction fan 30 is equal to or larger than the left and right width of the wind selection chamber 7. The present invention is a threshing device in which a suction opening 33 is provided at the start end side of the wind selection chamber 7 of the outer casing 26. In the present invention, the outer casing 26 includes a grain stalk supply device 34 provided on a side of the threshing chamber 2.
This is a threshing device provided with a guide body 35 for preventing the accumulation of falling objects provided above the suction opening 33 of the outer casing 26 at the rear end of the stalk feed device 34 or at the lower end of the grain stalk supply device 34. The present invention is a threshing device in which the cross flow fan portion 21 of the suction / dust exhaust fan 20 and the outdoor cross flow fan portion 31 of the side suction fan 30 are formed integrally with the rotating shaft 38. The present invention provides a suction / dust exhaust fan 20.
And one end of the side suction fan 30 is removably mounted by inserting one end thereof into a coupling portion 41 provided on a mounting plate 40 provided in the wind selection chamber 7 through the side suction opening 27. The airframe side plate 25 with the outer casing 26 mounted
Threshing device attached to The present invention provides a wind selection chamber 7 in which the threshed in the threshing room 2 is subjected to a wind selection process by blowing the thresh from the blowing fan 5 and rocking the rocking sorting shelf 8;
A suction / dust exhaust fan 20 for exhausting dust and the like to the outside of the machine is provided at the end side of the wind selection chamber 7. The suction / dust exhaust fan 20 is constituted by a cross flow fan unit 21,
The air selection chamber 7 is provided on the fuselage side plate 25 on the side of the cross flow fan unit 21.
Outer casing 2 communicating with the side suction opening 27
6 and the side suction fan 3 is provided in the outer casing 26.
0, and the cross flow fan portion 2 of the suction / dust exhaust fan 20 is provided.
Numeral 1 is located inside the body side plate 25 of the threshing apparatus 1, a plate-type side suction fan 31 a is provided on a rotating shaft 38 in the outer casing 26, and the diameter of the side suction fan 31 a is the cross flow fan 21. This is a threshing device formed larger than the diameter of the threshing machine.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Is a threshing device provided in a combine or the like, and a threshing chamber 2 is provided at an upper portion of the threshing device 1, and a handling cylinder 3 having a shaft center in the front-rear direction is mounted in the threshing chamber 2. The lower side is surrounded by the handling net 4. A casing 6 of the air blower 5 is provided below the handling net 4, and the blower blower 5 blows air toward the terminal end side (rear side) of the handling drum 3 in the axial direction. From the lower part of the threshing chamber 2 to the rear, an air selection chamber 7 is formed in which the grains and foreign matter can be selected by the blowing of the blowing fan 5. In the wind selection room 7, a swing sorting shelf 8 that reciprocates and swings in the blowing direction of the blowing fan 5 is provided. In this embodiment, the transfer shelf 9 at the start end of the swing sorting shelf 8 faces the upper part of the casing 6, and the falling object dropped on the transfer shelf 9 is transferred to the wind sorting chamber 7. And the space for mounting the casing 6 is effectively arranged.

[0007] The swing sorting shelf 8 is connected to the transfer shelf 9,
A sheave (10) for sorting kernels and foreign matter;
A straw rack 11 capable of transferring straw waste is provided on the end (discharge) side. A sorting net 12 is provided on the swinging sorting shelf 8 below the sheave 10, a first conveyor 13 is provided below the sorting net 12, and a second end is provided on the terminal side of the wind screening chamber 7 from the first conveyor 13. A conveyor 14 is provided. A dust treatment chamber 15 is provided at the end of the threshing chamber 2 on the side of the terminal end.
The starting end of 5 communicates with the threshing chamber 2 to process objects that cannot be processed in the threshing chamber 2. In the embodiment, the processing cylinders 16 of the dust processing chamber 15 are arranged in parallel to the axial direction of the handling cylinder 3, and the processing cylinder 16 of the dust processing chamber 15 is provided on the side of the threshing chamber 2. A second processing chamber 18 having a second processing cylinder 17 is provided coaxially with the second processing chamber 18. The second processing chamber 18 is connected to the end of a second return device 19 provided at the end of the second conveyor 14, so that the second product can be obtained. Processing.

Thus, a suction / discharge fan 20 is provided at the end (rear side) in the air selection chamber 7. The suction and exhaust fan 20 is a cross-flow fan unit (sirocco fan) whose axis is in the left-right direction.
21 and is surrounded by a case 22 on the upper and lower sides of the cross flow fan unit 21 so that suction air is generated in the case 22. Straw chips and the like that are discharged outside and are not sucked by the suction / dust exhaust fan 20 are discharged outside the machine by the straw rack 11. Thus, the side casing 25 of the threshing device 1 on the side of the suction / dust exhaust fan 20 has the outer casing 2 projecting sideways.
6 is provided. The outer casing 26 has a side suction opening 27 formed on the side (inside) thereof, which communicates with the air selection chamber 7 (the case 22 of the suction / discharge fan 20), and a rear discharge port 28 at the rear of the outer casing 26. It is opened and a side suction fan 30 is provided in the outer casing 26.

The side suction fan 30 is formed by a left-right outdoor cross flow fan unit (sirocco fan) 31 integrally formed with the cross flow fan unit 21. An end of the outdoor cross flow fan unit 31 is formed into an outer casing. It is mounted on 26. In this case, the side suction fan 30 cannot be distinguished in the figure because the outdoor cross flow fan portion is formed integrally with the cross flow fan portion 21. However, the fan portion in the outer casing 26 is the outdoor cross flow fan. The cross-flow fan portion 21 is an inner portion of the body side plate 25. The side suction fan 30 is provided on one side of the wind selection chamber 7 to suction the inside of the wind selection chamber 7 from the side to diffuse the wind selection processing object in the width direction (left-right direction).

In other words, the suction / discharge fan 20 sucks the air in a direction parallel to the air blowing direction of the air blower 5 so that the air can be sucked uniformly in any place in the width direction, thereby suppressing the occurrence of uneven suction. Even if the air selection processing object discharged from the threshing chamber 2 (the dust processing chamber 15) is unbalancedly discharged to one side, the action of diffusing the object is weak. The air suction processing object is diffused by the side suction fan 30, and both the suppression of the uneven suction unevenness and the diffusion are achieved, thereby improving the wind selection efficiency. Therefore, when the side suction fan 30 is disposed in consideration of the rotation direction of the handling cylinder 3, the diffusion of the wind selection processing object is improved,
It is suitable. That is, in the embodiment, the rotation direction of the handle cylinder 3 is clockwise, the side suction fan 30 is positioned on the rotation lowering side of the handle cylinder 3, and the side suction fan 30 is rotated sideways from the opposite side discharged together with the handle cylinder 3. The suction fan 30 sucks the air to improve the diffusion of the air selection processing object.

In this case, a dust processing chamber 15 and a second processing chamber 18 are provided on the rotation rising side of the handling cylinder 3 of the threshing chamber 2, and are provided on the opposite side of the dust processing chamber 15 (on the rotating lower side of the handling cylinder 3). The provision of the side suction fan 30 results in a rational configuration. That is, a dust processing chamber 15 and a second processing chamber 18 are provided on the right side of the threshing chamber 2 and are discharged from the threshing chamber 2 toward the right and fall, while the dust processing chamber 15 and a second processing chamber provided on the right are provided. From 18, it is discharged and dropped toward the left side, dropped so as not to be biased to one of the left and right sides, and sucked by the side suction fan 30 from the left side opposite to the threshing room 2 on the right side where the amount of fall is large, so diffusion is good. And a rational configuration is preferable. Further, the outer casing 26 projects laterally from the machine body side plate 25 of the threshing apparatus 1, which means that the outer casing 26 is located at the side of the wind selection chamber 7, and a side suction fan is provided from the outer casing 26. By suctioning by 30, the side suction force is increased.

The left and right widths of the suction and exhaust fan 20 and the side suction fan 30 are formed to be equal to or wider than the left and right widths of the wind selection chamber 7. That is, the sheaves 10 of the swing sorting shelf 8 are arranged to fill the left and right widths of the wind selection chamber 7, and the left and right widths of the suction and exhaust fan 20 and the side suction fan 30 are equal or wider than the left and right widths. Form. Thus, a suction opening 33 is provided in a front portion of the outer casing 26. The suction opening 33 improves the suction efficiency in the outer casing 26, and further improves the suction efficiency from the air selection chamber 7. The outer casing 26 is provided behind the grain stalk supply device 34 provided on the side of the threshing chamber 2 or the grain stalk supply device 3.
4, a guide body 35 is provided above the outer casing 26 to prevent the accumulation of falling matter from the grain stalk supply device 34. The guide body 35 is formed to have a top plate portion 36 above the outer casing 26 and an inclined portion 37 that slopes down to the front side (start end side) following the top plate portion 36, and is formed above and outside the outer casing 26. Surround the part. In the embodiment, when the top plate portion 36 is located above the end of the grain stalk supply device 34, and the inclined portion 37 is located behind the grain stalk supply device 34 and below the grain stalk supply device 34, Preventing suction of dust and the like from the suction opening 33,
It is suitable.

The suction opening 33 of the outer casing 26 is positioned below the guide body 35 to prevent the fallen material from being sucked from the grain stalk supply device 34. Thus, the cross flow fan portion 21 and the side suction fan 30 form fins integrally with the rotation shaft 38, and the rear end of the rotation shaft 38 (cross flow fan portion 21) is connected to the cross flow fan portion 21. Each is inserted from the side suction opening 27 and is detachably attached to a coupling portion 41 provided on a mounting plate 40 provided on the side of the dust treatment chamber 15. The outer end of the rotary shaft 38 (side suction fan 30) is mounted on an outer plate 42 of the outer casing 26 by a bearing 43, and the outer plate 42 is detachably attached to the outer casing 26. 26
Is inserted together with the cross flow fan section 21 from the side opening section 44. 45 is an input pulley. That is, the grain stalk supply device 34
The suction / dust exhaust fan 20 is inserted together with the side suction fan 30 from the side through the side opening 44 and the side suction opening 27 of the outer casing 26, and the outer plate 42 of the outer casing 26 is detachably attached to the outer casing 26. And fix it. 9 shows that the cross flow fan unit 21 is positioned inside the body side plate 25, and the rotating shaft 38 in the outer casing 26 is rotated.
Is provided with a plate-type side suction fan section 31a, and the diameter of the side suction fan section 31a is formed larger than the diameter of the cross flow fan section 21.

The handling net 4 is attached to each of the divided front and rear handling frames 4a and 4b, and the holding member 50 is provided on the back and left handling net frame 4b. The edge of the processing net frame 52 of the processing net of the second processing chamber 18 (the dust processing chamber 15) is abutted from above. That is, each of the front-side net frame 4a, the rear-side net frame 4b, and the processing net frame 52 is inserted into the net frame 53, and the engaging pin 54 on the rear side of the processing net frame 52 is fixed to the fixing portion. The back side net frame 4 in the engaged state
It is pressed by the pressing body 50 of b.

[0015]

Next, the operation will be described. When the grain culm is supplied to the threshing room 2 by the grain culm supply device 34, threshing is performed by the rotating handling cylinder 3 in the threshing room 2, and the fallen object dropped from the handling net 4 is transferred onto the transfer shelf 9 of the swing sorting shelf 8. It falls, is transferred by the transfer protrusion of the transfer shelf 9, and reaches the sheave 10. On sheave 10,
Straw chips and grains are separated by the oscillating sheave 10 and the air blown by the blower Karin 5, and the grains and some straw chips fall through the gap between the sheaves 10 and do not fall through the gap between the sheaves 10 and do not fall. And the like are moved to the discharge side by the swinging of the swinging sorting shelf 8 and the blowing of the blowing air 5, and at the end side of the wind sorting chamber 7, dust and straw chips are sucked and removed by the suction / dust fan 20, and the suction and discharge are performed. Straw chips not sucked by the dust fan 20 reach the straw rack 11, and straw chips and the like that do not drop from the straw rack 11 are discharged out of the machine through the outside discharge port 23.

The second product collected by the second conveyor 14 is processed in the second processing chamber 18, and the processed material falls on the transfer shelf 9 and is again supplied to the wind selection chamber 7 to be processed by the second processing chamber 18. Is selected. Thus, the suction and exhaust fan 20 provided at the end of the wind selection chamber 7 is formed by a transverse flow fan portion (sirocco fan) transverse flow fan portion 21 whose axis is in the left-right direction. The side is surrounded by a case 22, so that the width direction of the wind selection chamber 7 is sucked evenly, and the dust and the like sucked by the cross flow fan unit 21 are discharged to the outside discharge port 2.
Discharge outside the machine from 3. Further, an outer casing 26 protruding laterally is provided on the body side plate 25 of the threshing apparatus 1 on the side of the suction / dust exhaust fan 20, and the outer casing 26 and the wind selection chamber 7 are provided.
(The case 22 of the suction / dust exhaust fan 20) is communicated with the side suction opening 27, and the side suction fan 30 is provided in the outer casing 26. Separately, the suction air flows toward the side suction opening 27, and the dust sucked into the outer casing 26 is discharged from the rear discharge port 28.

Therefore, the suction / discharge fan 20 sucks in any direction in the width direction by sucking in parallel with the blowing direction of the blower fan 5, so that the side suction fan 30 and the cross-flow fan unit 21 can suck the dust. Separately, by subjecting the suction air toward the side suction opening 27, the air selection processing object is diffused, and the air selection efficiency is improved. In other words, both the suppression of contradictory suction unevenness and the diffusion are achieved, and the wind selection efficiency is improved. Further, since the side suction fan 30 sucks obliquely with respect to the suction direction of the suction / dust exhaust fan 20 and diffuses the wind selection processing object, the side suction fan 30 is set in consideration of the rotation direction of the handling drum 3. When it arrange | positions, it draws from the opposite side (left side) of the discharge side (right side) discharged corotating, and makes the spreading | diffusion of the wind selection processing object favorable, and is suitable.

In this case, a dust processing chamber 15 and a second processing chamber 18 are provided on the rotation rising side of the handling cylinder 3 of the threshing chamber 2, and on the opposite side of the dust processing chamber 15 (on the rotation lowering side of the handling cylinder 3). When the side suction fan 30 is provided, first, it is discharged from the threshing chamber 2 toward the rotation rising side (the right side), and is dropped from the dust processing chamber 15 and the second processing chamber 18 provided on the rotation rising side to the processing side (left side). ), Where it is dropped so as not to be biased to any one of the left and right sides, and it is sucked by the side suction fan 30 from the left side opposite to the threshing chamber 2 on the right side where the amount of drop is large. Is good, and a rational configuration is preferable. Since the left and right widths of the suction dust exhaust fan 20 and the side suction fan 30 are formed to be equal to or wider than the left and right width of the wind selection chamber 7, the suction efficiency is improved.

Thus, the side suction fan 30 is formed by a left-right outdoor cross flow fan (sirocco fan) 31 integrally formed with the cross flow fan 21, and an end of the outdoor cross flow fan 31 is formed. Since the shaft is mounted on the outer casing 26, the structure is simplified and the cost is reduced. In addition, a rear outlet 2 is provided at a rear portion of the outer casing 26.
8, the suction opening 33 is provided in the front part of the outer casing 26, so that the suction opening 33 improves the suction efficiency in the outer casing 26, and furthermore,
The suction efficiency from the wind selection chamber 7 is also improved, and the dust sucked from the side suction opening 27 is discharged to the rear, so that even if the side provided with the outer casing 26 is the uncut side, the uncutted culm can be removed. To prevent dust from blowing out.

The outer casing 26 is provided behind the grain culm supply device 34 provided at the side of the threshing chamber 2 or below the end of the grain culm supply device 34, and is provided above the outer casing 26. Since the guide body 35 for preventing the accumulation of the fallen objects from the container 34 is provided, the space behind the grain stalk supply device 34 or the space below the end of the grain stalk supply device 34 is effectively used, and the accumulation of the fallen objects is prevented. . Since the cross flow fan portion 21 of the suction / discharge fan 20 and the outdoor cross flow fan portion 31 of the side suction fan 30 are formed integrally with the rotating shaft 38, the configuration is simplified and the cost is reduced. make low. In this case, the rear end of the rotating shaft 38 (cross flow fan unit 21) is inserted together with the cross flow fan unit 21 from the side suction opening 27, and is attached to the mounting plate 40 provided on the side of the dust treatment chamber 15. The rotation shaft 38 (the side suction fan 3) is configured to be detachably attached to the coupling portion 41 provided.
The outer end portion of (0) is axially mounted on the outer casing 26, and the outer casing 26 is attached to and fixed to the machine body side plate 25.
0 is inserted together with the side suction fan 30 and the outer casing 26 is attached and fixed to the body side plate 25, thereby completing the installation of the suction / dust exhaust fan 20 and the side suction fan 30, facilitating attachment / detachment and maintenance. Also to make it easier.

In the embodiment shown in FIG. 9, the crossflow fan portion 21 of the suction / discharge fan 20 is located inside the body side plate 25 of the threshing apparatus 1, and the rotating shaft 38 in the outer casing 26 has a plate-type. A side suction fan section 31a is provided,
Since the diameter of the side suction fan portion 31a is larger than the diameter of the cross flow fan portion 21, the side suction fan portion 31a has a larger diameter.
a improves the efficiency of suction into the outer casing 26, and also improves the efficiency of suction from the wind selection chamber 7.

[0022]

According to the present invention, there is provided a wind selection chamber 7 in which the threshed in the threshing room 2 is subjected to a wind selection process by blowing the thresh from the blower Karin 5 and oscillating the rocking sorting shelf 8. The suction dust exhaust fan 20 that exhausts dust and the like to the outside of the machine is provided on the side of the fan.
And an outer casing 26 communicating with the wind selection chamber 7 and the side suction opening 27 is provided on the body side plate 25 on the side of the cross flow fan section 21.
Since the threshing device is provided with the side suction fan 30 therein, it is possible to achieve both the suppression of uneven suction and the diffusion and the efficiency of wind selection. The present invention relates to the suction / dust exhaust fan 2.
Since the left and right width of the 0 and the side suction fan 30 is equal to or wider than the left and right width of the wind selection chamber 7, the threshing device is improved, so that the wind selection efficiency is improved. The present invention is a threshing device in which a suction opening 33 is provided at the start end side of the wind selection chamber 7 of the outer casing 26, so that the suction efficiency of the side suction fan 30 is improved. By wind selection room 7
Improve the suction efficiency inside. In the present invention, the outer casing 26 is provided at the rear end of the grain culm supply device 34 provided at the side of the threshing chamber 2 or at the lower end of the grain culm supply device 34. Since it is a threshing device provided with a guide body 35 for preventing the accumulation of falling objects above, the suction of the foreign matter from the suction opening 33 can be suppressed, and the space can be used effectively. In the present invention, the cross flow fan portion 21 of the suction / dust exhaust fan 20 and the outdoor cross flow fan portion 31 of the side suction fan 30 are formed as a threshing device integrally formed with respect to the rotating shaft 38. To simplify manufacturing and assembly and reduce costs. According to the present invention, the suction / dust exhaust fan 20 and the side suction fan 30 are attached to the mounting plate 4 having one end provided in the air selection chamber 7.
The threshing device is attached to the body side plate 25 together with the outer casing 26 axially mounted at the other end, while being inserted into the coupling portion 41 provided at 0 through the side suction opening 27 and detachably attached thereto. It facilitates production and assembly, and also facilitates maintenance. The present invention provides a wind selection chamber 7 in which the threshed in the threshing room 2 is subjected to a wind selection process by blowing the thresh from the blowing fan 5 and rocking the rocking sorting shelf 8;
A suction / dust exhaust fan 20 for exhausting dust and the like to the outside of the machine is provided at the end side of the wind selection chamber 7. The suction / dust exhaust fan 20 is constituted by a cross flow fan unit 21,
The air selection chamber 7 is provided on the fuselage side plate 25 on the side of the cross flow fan unit 21.
Outer casing 2 communicating with the side suction opening 27
6 and a side suction fan 3 in the outer casing 26.
0, and the crossflow fan portion 2 of the suction / dust exhaust fan 20 is provided.
Numeral 1 is located inside the machine body side plate 25 of the threshing apparatus 1, and a plate-type side suction fan portion 31 a is provided on a rotating shaft 38 in the outer casing 26, and the diameter of the side suction fan portion 31 a is the cross flow fan portion 21. Since the threshing device is formed to have a diameter larger than the diameter, the suction efficiency into the outer casing 26 is improved by the side suction fan portion 31a, and the suction efficiency from the wind selection chamber 7 is also improved.

[Brief description of the drawings]

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

FIG. 2 is a rear view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of another embodiment.

FIG. 5 is a side view of another embodiment.

FIG. 6 is a plan view of the same.

FIG. 7 is a rear view of another embodiment.

FIG. 8 is an enlarged view of the same.

FIG. 9 is a rear view of another embodiment.

FIG. 10 is a front view of an attached state of a handling net and a processing net.

FIG. 11 is an enlarged view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Threshing device, 2 ... Threshing room, 3 ... Handling cylinder, 4 ... Handling net, 5 ...
Blowing Karamin, 6 ... Casing, 7 ... Wind sorting room, 8 ... Swing sorting shelf, 9 ... Transfer shelf, 10 ... Sheave, 11 ... Straw rack, 12 ... Sorting net, 13 ... First conveyor, 14 ... Second conveyor , 15: Dust processing chamber, 16: Processing cylinder, 17: Second processing cylinder, 18: Second processing chamber, 19: Second return device, 20
… Suction dust exhaust fan, 21… cross-flow fan part, 22… case, 23… outside discharge port, 25… body side plate, 26… outer casing, 27… side suction opening, 28… rear discharge port,
30 ... side suction fan, 31 ... outdoor cross flow fan part, 3
3 ... suction opening, 34 ... grain stalk supply device, 35 ... guide body, 36 ... top plate, 37 ... inclined portion, 38 ... rotating shaft, 40
... Mounting plate, 41 ... Coupling part, 42 ... Outer plate, 43 ...
Bearings, 44: side openings, 45: input pulley, 50: holding body, 52: processing net frame, 53: frame body, 54: engagement pin.

Claims (7)

[Claims] 1. A wind selection chamber 7 for subjecting threshed threshed in the threshing chamber 2 to a wind selection process by blowing air from a blower fan 5 and rocking a rocking selection shelf 8 is provided at the end side of the wind selection chamber 7. Is provided with a suction and exhaust fan 20 for discharging dust and the like out of the machine. The suction and exhaust fan 20 is constituted by a cross flow fan unit 21 and a machine body side plate 25 on the side of the cross flow fan unit 21. A threshing device in which an outer casing 26 communicating with the wind selection chamber 7 through a side suction opening 27 is provided, and a side suction fan 30 is provided in the outer casing 26. 2. A wind selection chamber according to claim 1, wherein the left and right width of the suction / dust exhaust fan and the side suction fan is combined.
A threshing device that is formed as wide or as wide as the left and right sides. 3. The threshing device according to claim 1, wherein a suction opening 33 is provided at a start end side of the wind selection chamber 7 of the outer casing 26. 4. The cereal culm supply device 34 according to claim 3, wherein the outer casing 26 is provided on a side of the threshing chamber 2.
A threshing device provided with a guide body 35 provided behind the end of the stalk or below the end of the grain stalk supply device 34 and above the suction opening 33 of the outer casing 26 to prevent the accumulation of falling objects. 5. The method according to claim 1, 2 or 3.
5. The threshing apparatus according to claim 4, wherein the cross flow fan portion 21 of the suction / dust exhaust fan 20 and the outdoor cross flow fan portion 31 of the side suction fan 30 are formed integrally with the rotating shaft 38. 6. The suction / dust exhaust fan according to claim 5,
And one end of the side suction fan 30 is removably mounted by inserting one end thereof into a coupling portion 41 provided on a mounting plate 40 provided in the wind selection chamber 7 through the side suction opening 27. The airframe side plate 25 with the outer casing 26 mounted
Threshing device attached to 7. A wind selection chamber 7 for subjecting threshed in the threshing chamber 2 to wind selection by blowing air from the blower Karin 5 and rocking the rocking selection shelf 8 is provided at the end side of the wind selection chamber 7. Is provided with a suction and exhaust fan 20 for discharging dust and the like out of the machine. The suction and exhaust fan 20 is constituted by a cross flow fan unit 21 and a machine body side plate 25 on the side of the cross flow fan unit 21. Is provided with an outer casing 26 which communicates with the wind selection chamber 7 through a side suction opening 27, a side suction fan 30 is provided in the outer casing 26, and the suction / dust exhaust fan 2 is provided.
0 is located inside the body side plate 25 of the threshing apparatus 1, and the rotating shaft 38 in the outer casing 26.
A threshing apparatus in which a plate-type side suction fan 31a is provided, and the diameter of the side suction fan 31a is larger than the diameter of the cross flow fan 21.