JP2001112339A - Waste straw treatment section structure for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject structure designed to improve the maintenance capability of both a cutter device and a suction fan. SOLUTION: In a combine harvester having such a construction that a reaping section (4) is set up on the front end of a machine body, a threshing section (6) and a swing separatory section (7) are set up vertically behind the reaping section (4), and a waste straw treatment section (8) is set up behind the threshing section (6), the waste straw treatment section (8) has such a scheme that the rear end portion of the machine body is openably mounted with a cutter device (12) for cutting waste straw and the front portion of the cutter device (12) is collocated with a suction fan (13) for discharging dust produced in the threshing section (6) into the outside so that both the cutter device (12) and the suction fan (13) are made openable as a unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine, and more particularly to a structure of a straw processing unit.

[0002]

2. Description of the Related Art As a conventional combine, a traveling unit is provided at a lower portion of a body frame, a reaping unit is provided at a front end of the body frame, and a threshing unit is provided at a position immediately behind the reaping unit. In addition, the swing sorting unit is disposed immediately below the threshing unit, and the straw processing unit is disposed immediately after the threshing unit.

[0003] Then, after the grain rods cut by the cutting unit are threshed by the threshing unit, the straw is broken by the straw processing unit and discharged to the outside of the machine body.

In such a conventional combine, a suction fan is provided at a position directly above a rocking body provided in a rocking sorting section,
A cutter device was disposed immediately behind the suction fan.

[0005]

However, in the above-mentioned conventional combine, when the maintenance of the suction fan is performed, the suction fan must be removed after the cutter device is removed. Work is complicated, and there is a possibility that maintenance of the suction fan cannot be performed satisfactorily.

In addition, since a suction fan is disposed directly above the rocking body to discharge all dust generated in the threshing unit by the suction fan to the outside of the machine body, a large amount of water is contained. Straw chips having a large mass are also sucked by the suction fan, so that the suction fan is clogged and the suction fan may be broken.

[0007]

Therefore, according to the present invention, a mowing section is provided at the front end of the machine body, and a threshing section and a swing sorting section are vertically disposed at a position rearward of the mowing section, so that threshing is performed. In the combine having a straw processing unit disposed at the rear position of the unit, the straw processing unit is provided at the rear end of the fuselage with a cutter device for breaking the straw, which can be freely opened and closed. A suction fan for discharging dust generated in the threshing unit to the outside is connected to the front of the device, so that the cutter device and the suction fan can be integrally opened and closed.

Further, a straw guide for guiding the straw broken by the cutter device to the outside is provided at the rear end of the fan casing of the suction fan.

In addition, a gap is formed between the oscillating body disposed in the oscillating sorting section and the suction fan.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A combiner according to the present invention has a cutting section disposed at the front end of the machine body, and a threshing section and a swing sorting section disposed vertically above and below the cutting section. A straw processing unit is disposed at the rear position of.

In addition, a cutter device for breaking the straw is disposed at the rear end of the body so as to be openable and closable, and a dust generated in the threshing unit is discharged to the outside at the front of the cutter device. The suction fan is provided continuously, and the cutter device and the suction fan can be integrally opened and closed.

Therefore, the cutter device and the suction fan can be opened and closed at the same time, and maintenance work of the cutter device and the suction fan can be easily performed.

Further, a straw guide for guiding the straw broken by the cutter device to the outside is continuously provided at the rear end of the fan casing of the suction fan, so that the straw guide is formed in the threshing unit. It can function as a guide for discharging the dust to the outside, and can smoothly discharge the dust to the outside.

Further, it is not necessary to provide a guide separate from the straw guide in the suction fan, so that the number of parts can be reduced, the manufacturing cost can be reduced, and the assembling operation can be simplified. .

Further, by forming a gap between the oscillating body provided in the oscillating sorting section and the suction fan, straw having a large amount of water and having a large mass is formed between the oscillating body and the suction fan. The suction fan is discharged to the outside through the formed gap, so that clogging of the suction fan can be prevented, and failure of the suction fan can be prevented.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a combine 1 according to the present invention. The combine 1 has a pair of left and right crawler-type running sections 3, 3 arranged below a body frame 2.
At the front end of the machine body frame 2, the mowing unit 4 is arranged so as to be able to move up and down via an elevating mechanism 5, a threshing unit 6 is arranged at a position immediately behind the mowing unit 4, and at a position directly below the threshing unit 6. While the swing sorting unit 7 is provided, a straw processing unit 8 is provided at an upper rear portion of the swing sorting unit 7 and immediately after the threshing unit 6.

In the combine 1, an operating unit 9 is provided at the right front end of the body frame 2, a grain storage unit 10 is provided immediately behind the operating unit 9, and a grain storage unit 10 is provided. A motor unit 11 is disposed immediately behind the storage unit 10.

Then, the combine 1 performs threshing on the cereal rods cut by the reaper 4 in the threshing unit 6, and sorts kernels and straw by the rocking sorting unit 7, and converts the kernels into kernels. While being stored in the storage unit 10, the straw is broken by the straw processing unit 8 and discharged to the outside of the machine.

As shown in FIGS. 2 to 5, the straw processing unit 8 is provided with a cutter device 12 for breaking the straw at the rear end of the machine so as to be openable and closable in the front-rear direction. Device 12
A suction fan 13 for discharging the dust generated in the threshing unit 6 to the outside is connected to the front of the unit.

The cutter device 12 has a cutter support 13 erected at the right rear end of the body frame 2.
The right front end of a rectangular box-shaped cutter casing 14 is rotatably and pivotally mounted on 13, and a cutter mechanism 15 and a diffusion mechanism 16 are arranged inside the cutter casing 14 at an interval vertically. . In the figure, 17 is a pivot and 18 is a bracket.

The cutter mechanism 15 includes a cutter casing 14
The two cutter shafts 21 and 22 are rotatably mounted horizontally with a space between the left and right side walls 19 and 20. Disc-shaped cutter blades 23 and 24 are mounted on the cutter shafts 21 and 22, respectively. Installed at intervals along 22.

The cutter mechanism 15 has a straw guide 26 for guiding the straw broken by the cutter device 12 to the outside at the lower end of the front side wall 25 of the cutter casing 14 in a front-to-back and back-to-back slope. Installed.

The diffusion mechanism 16 has a diffusion shaft 27 rotatably mounted between the left and right side walls 19 and 20 of the cutter casing 14, and a diffusion blade 28 is attached to the diffusion shaft 27.

The spreading mechanism 16 spreads the straw broken by the cutter mechanism 15 and discharges the straw toward the field.

The suction fan 13 has a pair of left and right support angles 30, 30 extending vertically in the middle of a support pipe 29 having a hollow rectangular cross-section and extending between the left and right side walls 19, 20 of the cutter casing 14. 30 and the supporting angles 30, 30
Between the left and right side walls 3 of the fan casing 31 of the suction fan 13
2 and 33, and a rotating shaft 34 is rotatably mounted between substantially central portions of the left and right side walls 32 and 33, and a sirocco fan is mounted on the rotating shaft 34.
35 is installed.

As described above, in the present embodiment, the cutter device 12 for breaking the straw is disposed at the rear end of the machine so as to be openable and closable, and the threshing unit 6 is provided at the front of the cutter device 12. A suction fan 13 for discharging the generated dust to the outside is provided in series, so that the cutter device 12 and the suction fan 13 can be opened and closed integrally, so that the cutter device 12 and the suction fan 13 can be simultaneously operated. It can be opened and closed, and maintenance work of the cutter device 12 and the suction fan 13 can be easily performed.

The suction fan 13 has a fan casing.
The rear end of the upper wall 36 having an arc-shaped cross section of 31 is brought into contact with the middle of the straw guide 26, and the straw guide 26 is connected to the rear end of the fan casing 31.

Therefore, the straw guide 26 can function as a guide for discharging the dust generated in the threshing unit 6 to the outside, and the dust can be discharged to the outside smoothly.

Moreover, it is not necessary to provide a guide separate from the straw guide 26 in the suction fan 13, so that the number of parts can be reduced, the manufacturing cost can be reduced, and the assembling operation can be simplified.

Further, the suction fan 13 is provided at a position just above the rear end of the rocking body 37 provided in the rocking sorting section 7,
A gap 39 is formed between the lower wall 38 having a circular arc cross section of the fan casing 31 of the suction fan 13 and the upper rear end of the rocking body 37.

Therefore, the fine dust generated in the threshing unit 6 is
The straw is sucked by the suction fan 13 and discharged to the outside, but the large amount of straw containing a large amount of water is discharged to the outside through the gap 39 formed between the rocking body 37 and the suction fan 13. That is, straw chips having a large amount of water and having a large mass are not clogged in the suction fan 13, so that the failure of the suction fan can be prevented.

At the front end of the upper wall 36 of the suction fan 13, a suction amount adjusting plate 40 is mounted so as to be swingable in the vertical direction. Karamin established
A suction amount adjusting mechanism 42 for adjusting the suction amount by the suction fan 13 in accordance with the exhaust air amount of 41 is interlocked and connected.

The suction amount adjusting mechanism 42 is, as shown in FIG.
Exhaust air volume adjustment plate 44 rotatably provided in the side opening 43 of Karamin 41
A potentiometer 46 is attached to a pivoting portion 45 of the motor, and the potentiometer 46 is connected to a controller 47, while an electric motor 48 is connected to the controller 47, and a driving shaft 49 of the electric motor 48 has a base end of a rotating arm 50. Attach the same rotating arm
Connect the front end of the suction volume adjustment plate 40 to the tip of
Are interlocked and linked.

Then, the suction amount adjusting mechanism 42 detects the amount of rotation of the exhaust air amount adjusting plate 44 of the Karin 41 by the potentiometer 46, and the controller 47 detects the exhaust amount of the Karin 41, and according to the exhaust amount. The controller 47 rotates the electric motor 48 to open and close the suction amount adjusting plate 40.For example, when the amount of exhaust air of the Karin 41 is large, the suction adjusting plate 40 is opened, and the suction fan 13 It is adjusted so that more dust can be sucked.

FIGS. 7 and 8 are views showing a mechanism for adjusting the suction amount of the suction fan 13. In this case, a speed change mechanism 52 is mounted on the rotating shaft 34 of the suction fan 13. Transmission mechanism by an electric motor 48 connected to the controller 47
By shifting the speed of the suction fan 52, the rotation shaft 34 of the suction fan 13 is
The number of rotations of the suction fan 13 is increased or decreased to adjust the suction amount of the suction fan 13.

The speed change mechanism 52 includes a rotating shaft 34 of the suction fan 13.
, A split pulley 55 composed of left and right split pulley members 53 and 54 is attached, and an advance / retreat shaft 56 is attached to the left split pulley member 53,
A rack 57 is formed at the upper part of the outer peripheral surface of the
57, a pinion gear attached to the drive shaft 49 of the electric motor 48
58 are engaged. In the drawing, reference numeral 59 denotes a transmission belt for transmitting the power of the prime mover unit 11 to the rotating shaft 34 of the suction fan 13;
Is a support boss attached to the left side wall 32 of the suction fan 13 to support the reciprocating shaft 56 so that the reciprocating shaft 56 can move forward and backward, 61 and 62 are bearings, 63 is for connecting the left split pulley structure 53 and the reciprocating shaft 56. Connected.

As described above, by providing the suction amount adjusting mechanism 42 for adjusting the suction amount by the suction fan 13, for example, when it is detected that the reaper 4 has risen during traveling on the road or traversing. By reducing the number of revolutions of the suction fan 13, fuel consumption can be improved.

The cutter device 12 and the suction fan 13 are linked by a drive mechanism 64.

That is, as shown in FIG. 2 and FIG. 5, the driving mechanism 64 has a counter shaft 65 attached to the motor unit 11 at the left side of the body, and a counter shaft attached to the left end of the counter shaft 65. A pulley 66 and a cutter pulley 67 attached to the left end of the cutter shaft 22 of the cutter mechanism 15
One transmission belt 71 is connected to a diffusion pulley 68 attached to the left end of the diffusion shaft 27 of the diffusion mechanism 16 and a fan pulley 70 interlocked to the rotation shaft 34 of the suction fan 13 via a chain case 69. The winding and the cutter shafts 21 and 22 of the cutter mechanism 15 are linked and connected by a pair of gears 72 and 73. In the figure, 74 and 75 are tension pulleys.

[0041]

The present invention is embodied in the form described above and has the following effects.

(1) In the present invention, a cutter device for breaking waste straw is provided at the rear end of the fuselage so as to be openable and closable, and dust generated in the threshing unit is externally provided at the front of the cutter device. Since the suction fan is connected to the suction device and the cutter device and the suction fan can be opened and closed integrally, the cutter device and the suction fan can be simultaneously opened and closed,
Maintenance work of the cutter device and the suction fan can be easily performed.

(2) In the present invention, a straw guide for guiding the straw broken by the cutter device to the outside is continuously provided at the rear end of the fan casing of the suction fan. Can function as a guide when the dust generated in the threshing unit is discharged to the outside, and the dust can be discharged to the outside smoothly.

Furthermore, it is not necessary to provide a guide separate from the straw guide in the suction fan, so that the number of parts can be reduced, and the manufacturing cost can be reduced and the assembling operation can be simplified.

(3) In the present invention, since a gap is formed between the oscillating body provided in the oscillating sorting section and the suction fan,
Straw chips having a large mass containing a large amount of water are discharged to the outside through a gap formed between the rocking body and the suction fan, thereby preventing the suction fan from being clogged and causing a failure of the suction fan. It can be prevented beforehand.

[Brief description of the drawings]

FIG. 1 is a left side view of a combine according to the present invention.

FIG. 2 is a side view showing a straw processing unit.

FIG. 3 is a side view showing a mounting structure of the suction fan.

FIG. 4 is a side sectional view showing a cutter device and a suction fan.

FIG. 5 is a plan view showing a straw processing unit.

FIG. 6 is an explanatory view showing an air volume adjusting mechanism.

FIG. 7 is a side view of the same.

FIG. 8 is a rear sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combine 2 Body frame 3 Running part 4 Cutting part 6 Threshing part 7 Swing sorting part 8 Drainage processing part 9 Operating part 10 Kernel storage part 11 Prime mover part 12 Cutter device 13 Suction fan 26 Drainage guide 31 Fan casing

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2B095 BA30 CA02 EA02 EA06 EB02 EB05 EB13 EB14 EB15 EB23 FA15 GA04 GA14 2B097 AA03 CA06 CC01 CC04 CE08 CJ01 HA02 HC02

Claims (3)

[Claims] A reaper (4) is provided at the front end of the fuselage, and a threshing unit (6) and a swing sorting unit (7) are vertically disposed at a position behind the reaper (4). In a combine where a straw processing unit (8) is arranged behind the threshing unit (6), the straw processing unit (8) has a cutter for breaking the straw at the rear end of the fuselage. The device (12) is arranged to be openable and closable, and a suction fan (13) for discharging dust generated in the threshing unit (6) to the outside is connected to the front of the cutter device (12). Cutter device (1
2) A structure of a combine discharge processing unit, wherein the suction fan (13) can be integrally opened and closed. 2. A fan casing (31) for a suction fan (13).
2. A structure of a combine processing unit according to claim 1, wherein a straw guide (26) for guiding the straw broken by the cutter device (12) to the outside is provided at the rear end of the combine. . 3. A gap (39) is formed between an oscillating body (37) disposed in an oscillating sorter (7) and a suction fan (13). The structure of the combine straw processing unit described in the above.