JP2003009639A - Thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the maintenance work of a treating device to provide the treating device whose maintenance work is easy. SOLUTION: This thresher having a threshing chamber 7 in which a threshing cylinder 8 is pivotally disposed in the longitudinal direction, a discharging dust- treating device 25 partially communicatively disposed on the rear end side of the thresher 7, and a tailings return device 40 disposed on the side of the thresher 7 is disposed with the discharging dust-treating cylinder 26 of the discharging dust-treating device 25 and the tailings return cylinder 42 of the tailings return device 40 on an approximately same axis on the planar view, disposed with the discharging dust-treating cylinder 26 in a state capable of being attachably rearward pulled out, and detachably attached with an openable side cover 48 on the side of the tailings return cylinder 42 of the tailings treating device 40 over the approximately whole length.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art In Japanese Patent Laid-Open No. 8-289659, which has been publicly known, a threshing chamber equipped with a front and rear handling cylinder is provided, and a dust-disposal treatment device provided so as to partially communicate with the end side portion of the threshing chamber. , In a threshing device having a second treating device provided on the side of the threshing chamber, the dust treating cylinder of the dust treating device and the second treating drum of the second treating device are arranged on the same axis. , The dust removal treatment cylinder and the second treatment cylinder are pulled out to the rear side so as to be detachable. Conventionally known utility model registration 2
Japanese Patent No. 567784 discloses a threshing device having a threshing chamber equipped with a front and rear handling cylinder, and a dust processing device partially connected to the terminal side of the threshing chamber. The configuration in which the side cover is detachably provided on the side of the dust removal processing cylinder is described.

[0003]

The former one of the above-mentioned known examples has a structure in which not only the dust removal processing cylinder but also the second processing cylinder is removed, so that it is not easy to remove the second processing cylinder in actual work. There is a problem. Particularly in the case of a large-sized device, both the dust processing cylinder and the second processing cylinder are long and heavy, and the attachment / detachment work is not easy. Further, since the second processing chamber is not opened, there is a problem that maintenance of the second processing chamber is not easy. The latter of the known examples is
Although the side part of the dust processing cylinder is opened, the straw dust that has entered from the threshing chamber is entangled in the outer periphery of the dust processing cylinder, and there is a problem that the removal work is not easy even from the opened side part. Therefore, if devised, the whole maintenance work can be made rational and easy.

[0004]

It is an object of the present invention to facilitate maintenance work of a processing device,
Providing a processing device that facilitates maintenance work.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, a threshing chamber 7 in which a front and rear handling cylinder 8 is axially mounted, and a dust-disposal treatment device 25 provided partially in communication with the end side portion of the threshing chamber 7 In the threshing device having the second processing device 40 provided on the side of the threshing chamber 7, the dust processing cylinder 26 of the dust processing device 25 and the second processing cylinder 42 of the second processing device 40 are flat. They are arranged substantially in the same axis, and the dust-removal cylinder 26 is detachable by pulling it out to the rear side, and is opened to the side of the second-recycle cylinder 42 of the second-rear treatment device 40 over substantially the entire length. This is a threshing device with a removable side cover 49 removably attached. The dust removal device 25 removes the dust removal cylinder 26 for maintenance, and the second processing device 40 removes the side cover 49. The side of the second processing cylinder 42 is opened for maintenance. According to the present invention, the second processing cylinder 42 has the front end portion of the front plate 10 of the threshing device.
In addition, the rear end of each of them is axially mounted on the metal 29 of the intermediate plate 28 provided between the front plate 10 and the rear plate 11 of the threshing chamber, and the dust treatment cylinder 26 is different from the second treatment cylinder 42. The front end portion of the dust removal processing body shaft 27 having a separate shaft configuration is detachably fitted to the metal 29 of the intermediate plate 28 provided between the front plate 10 and the rear plate 11 of the threshing device so as to be detachably mounted. , Dust removal cylinder 27
The rear end of the threshing device 3 is a threshing device that is detachably attached to the rear plate 30 of the threshing device 3 via the bearing member 31, and the rotation of the second treatment cylinder 42 is transmitted to the dust treatment cylinder shaft 27. Rotate. The present invention is a threshing device in which the second processing cylinder 42 is located above the axis of the handling cylinder 8 and is rotated in the opposite direction to the rotation of the handling cylinder 8. Will scatter when falling from a high position, improving the diffusion efficiency. The present invention provides a threshing device in which the dust treatment cylinder 26 is located below the axis of the handling cylinder 8 and is rotated in the same direction as the rotation of the handling cylinder 8. The treated products fall while scattering and improve the diffusion efficiency. The present invention is directed to the rear end of the second processing cylinder 42 and the dust removal processing cylinder 26.
The front end of each of the intermediate plates 28 is axially mounted on an intermediate plate 28 provided between the front plate 10 of the threshing chamber 7 and the rear plate 11 of the threshing chamber.
Is a threshing device configured to transmit the rotation of the second treatment cylinder 42 and the dust removal treatment cylinder 26 so as to rotate in opposite directions by the transmission case 51 provided in the. Reversed through the case 51, the dust removal cylinder 26
Be transmitted to.

[0006]

[Effect] According to the first aspect, since the dust-disposal cylinder 26 can be pulled out and removed, maintenance such as removal of straw becomes easy,
Further, by opening the side portion of the second processing cylinder 42, sufficient maintenance can be performed, and the entire maintenance work can be facilitated by attaching / detaching only the dust removal processing cylinder 26. In addition to the above effects, according to claim 2, Even if the entire threshing device 3 is enlarged, the arrangement of the dust processing cylinder 26 and the second processing cylinder 42 is rationalized, and the second processing cylinder 42 and the dust processing cylinder 26 have different axes and are intermediate plates. Since it is supported by 28, vibration is reduced, durability is improved, and not only the detachable structure of the dust processing cylinder 26 can be easily realized, but also the second processing cylinder 42 of the second processing device 40 Make maintenance easy. In the third aspect, in addition to the above effect, the processed product is diffused to improve the sorting accuracy and efficiency. In the fourth aspect, in addition to the above effect, the processed product is diffused to improve the sorting accuracy and efficiency. In the fifth aspect, in addition to the above effect, not only the arrangement of the dust processing cylinder 26 and the second processing cylinder 42, but also the rotation transmission is rationalized and the cost is reduced.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings of a combine.
Reference numeral 2 is a traveling device provided below the machine frame 1, 3 is a threshing device provided above the machine frame 1, 4 is a reaping unit provided on the front side of the threshing device 3, and 5 is provided on a side portion of the threshing device 3. The Glen tank 6 is a control unit provided on the front side of the Glen tank 5. A threshing chamber 7 is provided on the upper side of one side of the threshing device 3, and a handling barrel 8 is mounted in the threshing chamber 7 by a handling barrel shaft 9. The handling barrel shaft 9 is mounted on the front plate 10 of the threshing device 3 and the rear plate 11 of the threshing chamber. The lower side of the handling cylinder 8 is mainly surrounded by a handling net 12. Reference numeral 13 is a blast bun, 14 is a casing of the blast bun, 13, 15 is an air-selecting chamber, 16 is a swinging sorting rack that swings in the blowing direction of the blasting boat 13, and 17 is a transfer rack at the start end of the swing sorting rack 16. 18 is the handling net 12 formed on the upper surface of the transfer shelf 17
Transfer protrusions for transferring fallen objects, 19 are sheaves for sorting grains and foreign substances, 20 are straw racks for transferring straw waste, 21 is the first conveyor, 22 is the second conveyor, and 23.
Is a suction / dust fan.

Therefore, a dust treatment device 25 is provided at the end of the threshing chamber 7. The dust treatment device 25 includes the handling cylinder 8
A dust removal cylinder 26 whose axis is parallel to the axis is provided. The dust treatment cylinder 26 has a front end portion of the dust treatment cylinder shaft 27 which is connected to the front plate 1.
0 and the rear plate 11 of the threshing chamber, which is detachably attached to the metal 29 of the intermediate plate 28, and the rear end portion of the dust processing body shaft 27 is attached to the rear plate 30 of the threshing device 3 via the bearing member 31. Mount and mount the shaft. The rear plate 30 is formed with an insertion port 32, and the insertion port 3
The dust removal cylinder 26 can be taken in and out from the No. 2 so that it can be inserted and removed. Therefore, the bearing member 31 axially mounts the dust processing cylinder 26 and closes the insertion port 32. The lower side of the dust treatment cylinder 26 is surrounded by a treatment net 33 to form a dust treatment chamber 34, and the dust treatment chamber 34 has its starting end portion overlapped with the end portion of the threshing chamber 7 in plan view, Communication port 35
To communicate with each other.

A second processing device 40 is provided on the front side of the dust processing cylinder 26. The second processing device 40 processes the second product collected and supplied by the second product returning device 41 connected to the end of the second conveyor 22.
The second processing chamber 44 is formed by surrounding the lower side of 2 with a second processing net 43. The second processing cylinder 42
Is disposed coaxially with the dust treatment cylinder 26, but the second treatment cylinder shaft 45 of the second treatment cylinder 42 is configured separately from the dust treatment cylinder shaft 27, and the front end portion of the second treatment cylinder shaft 45 is Mounted on the front plate 10,
The rear end of the second processing cylinder shaft 45 is mounted on the metal 29 of the intermediate plate 28. That is, by arranging the second processing cylinder 42 coaxially with the dust processing cylinder 26, the structure is downsized, space is effectively used, and both are supported by the intermediate plate 28 as separate shaft structures. Reduces vibration and improves durability.

Therefore, the side portion of the second processing cylinder 42 on the side opposite to the handling cylinder 8 is surrounded by the side plate 46 of the threshing device 3, and the second plate which opens most of the second processing chamber 44 in the longitudinal direction is provided on the side plate 46. A processing chamber opening 47 is formed, and the second processing chamber opening 47 is closed by a removable side cover 49. Then, as shown in FIG.
7 shows another embodiment, in which a processing cylinder is provided substantially in parallel with the handling cylinder 8, and the second processing cylinder 42 is disposed on the front side of the intermediate position of the processing cylinder.
The rear side is the dust treatment cylinder 26, and the rear end of the second treatment cylinder 42 and the front end of the dust treatment cylinder 26 are axially mounted on the intermediate plate 28, respectively, and the second treatment cylinder 42 and the dust treatment cylinder 26 are Transmission case 51
To transmit rotation. Then, the dust processing cylinder 26 is the handling cylinder 8
The second processing cylinder 42 transfers the processed material to the rear side by rotating in the same direction as the second processing cylinder 42, and the second processing cylinder 42 transfers the processing object to the front side by rotating in the opposite direction to the handling cylinder 8. Is located above the dust removal cylinder 27 of the dust removal cylinder 26.

In this case, the periphery of the second processing cylinder 42 is surrounded by the second processing net 43, but by mainly surrounding the lower side, the second processing chamber 44 and the threshing chamber 7 in the upper part of the second processing cylinder 42. It is preferable that the grain removal which does not fall from the handling net 12 enters into the second treatment chamber 44 and is treated, and the treatment efficiency is improved by communicating with the above. Further, it is preferable to position the second processing cylinder shaft 45 of the second processing cylinder 42 above the processing cylinder shaft 9 of the handling cylinder 8 because the second processing cylinder shaft 45 can be easily taken into the second processing chamber 44 from the threshing chamber 7. Therefore, an auxiliary Kara 55 is provided below the transfer shelf 17 of the swing selection shelf 16. The auxiliary Kara 55 is axially mounted in an upper casing 56 provided above the casing 14 of the blast Kara 13, and the upper casing 56 fixes the left and right ends of the lower plate 57 and the upper plate 58 in the front-rear direction to the side plate 46. And the front end of the lower plate 57 is the front plate 10 of the threshing device 3.
The front plate of the upper plate 58 is formed in an opening 59 with a gap between the front plate and the front plate of the lower plate 57. Gap 6 between 10
It is configured so as to face downward of 0 and mainly suck the grains falling from the gap 60 into the upper casing 56. The lower plate 57 of the upper casing 56 and the rear plate of the upper plate 58 are formed into a cylindrical portion by vertically arranging them relative to each other, and a rear end outlet 61 is provided at the rear end, and the rear end outlet 61 is a transfer rack. Face the opening 62 provided in the swing selection shelf 16 on the terminal side of 17,
Blow out the grains. Reference numeral 63 is a seal member provided on the periphery of the rear end outlet 61.

That is, in the structure in which the auxiliary Kara is provided below the transfer rack of the rocking selection rack as in the known Japanese Patent Laid-Open No. 9-140247, it always occurs between the front end and the front plate of the transfer rack which rocks back and forth. Grains and straw debris that fall through the gaps are not collected and are simply processed, but this also prevents threshing loss.
The straw waste is sorted by the sorting net 65 and enters the second conveyor 22. Further, a rear side auxiliary air blowing slag 64 is provided between the first conveyor 21 and the second conveyor 22 to improve the air selection of the second and third items.

Next, the operation of the embodiment will be described. When the grain culms are supplied to the threshing chamber 7, the rotating barrel 8 in the threshing chamber 7 threshes the grain, and the threshed grain is shaken from the handling net 12 by the swinging selection rack 16
On the transfer shelves 17 and transferred by the transfer protrusions 18 of the transfer shelves 17 to reach the wind selection chamber 15. At the sheaves 19 of the swing selection shelves 16, the sheaves 19 swinging and the air blown from the air blower 13 are sent. The straw waste and the grains are separated by this, and the grains fall from the gap between the sheaves 19 and are taken out of the machine from the first conveyor 21.

Further, the threshing object to be treated which does not fall from the handling net 12 is discharged from the dust removing device 2 through the communication port 35 at the end of the threshing chamber 7.
5, the dust-disposal chamber 26 that rotates into the dust-disposal chamber 34 of FIG.
The grains processed by the above process fall below the treatment net 33 and are wind-selected in the wind-selection chamber 15, and the treatment net 33
Straws and the like that do not fall further fall from the dust outlet at the end, and the grains in the straw scraps that have been wind-selected are dropped and the straw scraps are discharged to the outside of the machine. Straws, etc. do not fall from the gap of the sheave 19, so
The rocking / sorting shelf 16 moves to the discharge side due to the rocking and the blowing of the air blower 13 and the dust / straw dust is sucked and removed by the suction / dust fan 23 on the end side of the air selection chamber 15, and the suction / dust fan 23. Straws that are not sucked to reach the Straw rack 20 and straws that do not fall from the Straw rack 20 are discharged to the outside of the machine.

Therefore, the dust-removal processing device 25 has the handling barrel shaft 9
Since it is provided on the lower side of the handling cylinder 8, the dust is efficiently entered and treated in the dust treatment chamber 34. That is, the threshing in the threshing chamber 7 tends to gather obliquely downward with respect to the handling barrel axis 9 in the front view due to the action of gravity and the centrifugal force that rotates with the rotation of the handling barrel 8. Lower handle cylinder 8
By arranging the dust treatment device 25 on the side of, the delivery to the dust treatment device 25 becomes smooth. Further, since the dust processing cylinder 26 rotates in the same direction as the rotation of the handling cylinder 8, the delivery to the dust processing device 25 becomes smoother. Thus, the dust treatment cylinder 26 of the dust treatment device 25 has the dust treatment cylinder shaft 27.
Of the intermediate plate 28 provided between the front plate 10 and the rear plate 11 of the threshing chamber is detachably inserted and fitted, and the rear end of the dust removal processing body shaft 27 is attached to the threshing device 3 Since the bearing member 31 is attached to the rear plate 30 via the bearing member 31 and is axially mounted, when the bearing member 31 is removed from the rear plate 30, the dust removal cylinder 2
6 is removed from the insertion opening 32 of the rear plate 30, and maintenance of the dust processing cylinder 26 and the dust processing chamber 34 can be performed.

Further, a second processing device 40 is provided on the front side of the dust treatment cylinder 26, and a second treatment cylinder 42 is arranged coaxially with the dust treatment cylinder 26 to improve space utilization efficiency and Since the second processing cylinder shaft 45 of the processing cylinder 42 is configured separately from the dust processing cylinder shaft 27, only the dust processing cylinder 26 can be attached / detached, and the attachment / detachment work of the dust processing cylinder 26 is facilitated. In addition, the second processing cylinder 42 is arranged coaxially with the dust removal processing cylinder 26 in a plan view so as to not only reduce the size of the configuration, but also configure the second processing cylinder 42 with the dust removal processing cylinder 26 as a separate axial configuration. Since it is supported by the intermediate plate 28, vibration is reduced and durability is improved. Also, because it is configured in this way,
Even if the threshing device 3 as a whole becomes large, only the dust removal processing cylinder 26 can be attached or detached while keeping the long second processing cylinder 42, which facilitates the work, reduces vibration, and improves durability.

Therefore, the side portion of the second processing cylinder 42 on the side opposite to the handling cylinder 8 is surrounded by the side plate 46 of the threshing device 3, and the second plate which opens most of the second processing chamber 44 in the longitudinal direction is provided on the side plate 46. Since the processing chamber opening 47 is formed and the removable side cover 49 is attached to the second processing chamber opening 47, when the side cover 49 is removed, the second processing chamber opening 47 is processed. Room 4
Maintenance of the inside 4 and the second processing cylinder 42 can be performed. That is, a larger amount of straw dust enters the dust treatment chamber 34 of the dust treatment device 25 than the second treatment chamber 44, and the straw dust is entangled and clogging the outer periphery of the dust treatment cylinder 26. In order to remove the dust, the dust removal cylinder 26 is pulled out and the periphery thereof is opened to facilitate maintenance. On the other hand, since the second treatment chamber 44 has less straw waste than the dust treatment chamber 34, It is possible to perform sufficient maintenance by opening the side portion of the second processing chamber 44 without removing the second processing cylinder 42. By omitting the removal of the second processing cylinder 42, maintenance of the dust treatment device 25 can be performed. Make the whole maintenance work easy, including

Further, since no opening is provided at the side of the dust processing chamber 34, it is possible to avoid lowering the frame rigidity and suppress the occurrence of vibration. Thus, in another embodiment of FIGS. 6 and 7, a processing cylinder is provided substantially parallel to the handling cylinder 8, and the front side of the intermediate position of the processing cylinder is the second processing cylinder 42 and the rear side is the dust removal processing cylinder. 26, the rear end of the second treatment cylinder 42 and the front end of the dust treatment cylinder 26 are respectively mounted on the intermediate plate 28, and the second treatment cylinder 42 and the dust treatment cylinder 26 are rotationally transmitted by the transmission case transmission case 51. Therefore, as described above, the dust removal cylinder 2
6 is rotated in the same direction as the handling cylinder 8 to transfer the processed material to the rear side,
The second processing cylinder 42 has a configuration in which the rotation directions of the second processing cylinder 42 are simply opposite to each other so as to rotate the processing object 8 in the opposite direction to transfer the processed object to the front side. Further, since the second processing cylinder 42 is rotated in the opposite direction to the handling cylinder 8, the second processing device 40 uses the second processing net 43.
Further, the discharge from the end discharge port is diffused toward the rocking sorting shelf 16 and discharged, and the efficiency of the subsequent processing is improved, and a rational configuration is obtained.

In particular, the second processing cylinder shaft 45 of the second processing cylinder 42.
Is located above the dust treatment cylinder shaft 27 of the dust treatment cylinder 26, the diffusion action is further improved. Further, since the second processing cylinder 42 transfers the processed material to the front side, the second processing device 40 returns the second processing material to the starting end portion of the rocking / sorting shelf 16, thereby improving the processing efficiency. In the above case, the upper part of the second processing cylinder 42 may be closed out of the periphery of the second processing cylinder 42, but if left open, it may communicate with the threshing chamber 7 in the upper part of the second processing net 43. And threshing room 7
Since the degrained grains that have not fallen from the handling net 12 such as the branches attached to the handling net 12 enter the second processing chamber 44 and are processed, the sorting accuracy and the sorting efficiency are improved, which is preferable.
Then, between the lower side of the transfer shelf 17 of the rocking sorting shelf 16 and the casing 14 of the air blower sink 13 is dropped from the gap 60 between the front end of the transfer shelf 17 of the rocking sorting shelf 16 and the front plate 10. Since the auxiliary Kara 55 which sucks the fallen objects and blows them out to the end of the transfer rack 17 of the rocking sorting rack 16 is provided with the gap 60.
Falling objects that fall further do not collect, and the rear end outlet 6
From 1 to be blown out through the opening portion 62 provided in the rocking sorting shelf 16, the grains fall by the sorting net 65 and enter the first conveyor 21, and the straw dust, the branch-stem attached particles and the like are delivered to the second conveyor 22. It enters and is reprocessed.

Further, a seal member 63 is provided at the rear end outlet 61 of the lower plate 57 and the upper plate 58 of the upper casing 56.
Therefore, the grain from the rear end blow-out port 61 is surely put into the opening 62 of the rocking sorting shelf 16 which moves back and forth.
Further, since the rear side auxiliary air blowing slag 64 is provided between the first conveyor 21 and the second conveyor 22, a sorting net 65 is provided.
Further, it makes it possible to improve the wind selection of the second and third products from the straw waste, the grain attached to the branch shoots, etc., which enter the second conveyor 22 without falling, and reduce the sorting load and the threshing loss.

[Brief description of drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a vertical sectional view of a threshing device.

FIG. 3 is a cross-sectional plan view of the same.

FIG. 4 is a vertical sectional view of a metal portion.

FIG. 5 is a longitudinal rear view of the threshing device.

FIG. 6 is a sectional view of another embodiment.

FIG. 7 is a rear view of the same section.

FIG. 8 is a perspective view of an auxiliary Karamoto part.

FIG. 9 is a partial cross-sectional view of an auxiliary Karako casing and a swing selection shelf.

[Explanation of symbols]

1 ... Airframe frame, 2 ... Traveling device, 3 ... Threshing device, 4 ...
Mowing part, 5 ... Glen tank, 6 ... Control part, 7 ... Threshing room,
8 ... Handling barrel, 9 ... Handling barrel shaft, 10 ... Front plate, 11 ... Threshing chamber rear plate, 12 ... Handling net, 13 ... Blast buns, 14 ... Casing,
15 ... Wind selection room, 16 ... Oscillating sorting rack, 17 ... Transfer rack, 18
… Transfer protrusions, 19… sheaves, 20… Stroraks, 2
DESCRIPTION OF SYMBOLS 1 ... No. 1 conveyor, 22 ... No. 2 conveyor, 23 ... Suction / dusting fan, 25 ... Dust disposal device, 26 ... Dust disposal cylinder, 2
7 ... Dust processing barrel, 28 ... Intermediate plate, 29 ... Metal, 30
... rear plate, 31 ... bearing member, 32 ... insertion port, 33 ... processing net, 34 ... dust treatment chamber, 35 ... communication port, 40 ... second processing device, 41 ... second article returning device, 42 ... second Processing cylinder, 43
... No. 2 processing net, 44 ... No. 2 processing chamber, 45 ... No. 2 processing barrel, 46 ... Side plate, 47 ... No. 2 processing chamber opening, 49 ... Side cover, 51 ... Transmission case, 55 ... Auxiliary curb, 56 ... Upper casing, 57 ... Lower plate, 58 ... Upper plate, 59 ... Opening part, 60 ... Gap, 61 ... Rear end blow-out port, 62 ... Opening part, 63 ... Sealing member, 64 ...

Claims (5)

[Claims] 1. A threshing chamber 7 in which a front and rear handling cylinder 8 is axially mounted.
And a dust removal processing device 25 provided partially in communication with the end side portion of the threshing chamber 7 and a second treatment device 40 provided on the side portion of the threshing chamber 7, wherein the dust removal The dust treatment cylinder 26 of the treatment device 25 and the second treatment cylinder 42 of the second treatment device 40 are arranged substantially in the same axis in plan view, and the dust treatment cylinder 2
The threshing device 6 is detachably attached by pulling out to the rear side, and has a side cover 49 detachably attached to the side part of the second processing cylinder 42 of the second processing device 40 that can be opened over substantially the entire length. 2. The intermediate plate according to claim 1, wherein the second processing cylinder 42 has a front end portion on the front plate 10 of the threshing device and a rear end portion between the front plate 10 and the threshing chamber rear plate 11. Each of the metal 29 of 28 is axially mounted, and the dust removal processing cylinder 26 has a front end portion of a dust removal processing cylinder shaft 27 having a different axis configuration from the second processing cylinder 42 and the front plate 10 of the threshing device and the rear of the threshing chamber. The metal 29 of the intermediate plate 28 provided between the plate 11 and the plate 11 is removably fitted and detachably attached. The rear end of the dust removal processing body shaft 27 is provided with the bearing member 31 on the rear plate 30 of the threshing device 3. A threshing device that is detachably attached via. 3. The threshing device according to claim 1, wherein the second processing cylinder 42 is located above the axis of the handling cylinder 8 and is rotated in the opposite direction to the rotation of the handling cylinder 8. 4. Claim 1 or claim 2 or claim 3.
In the above, the dust removing cylinder 26 is located below the axis of the handling cylinder 8 and is rotated in the same direction as the rotation of the handling cylinder 8. 5. Claim 1 or claim 2 or claim 3.
Alternatively, in claim 4, the rear end portion of the second processing cylinder 42 and the front end portion of the dust removal processing cylinder 26 are respectively attached to the intermediate plate 28 provided between the front plate 10 of the threshing chamber 7 and the rear plate 11 of the threshing chamber. A threshing device configured to be mounted and to transmit rotation so that the second processing cylinder 42 and the dust processing cylinder 26 rotate in opposite directions by a transmission case 51 provided on the intermediate plate 28.