JP2001032717A - Engine cooling structure of combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engine cooling structure of a combine in which clogging up of a rotary screen is presented. SOLUTION: In this engine cooling structure of a combine which is formed in a manner that while a radiator 64 is communicated with and connected to an outside air intake opening to suck outside air for cooling an engine, a rotary screen 67 in which a screen body 81 is rotatably formed is arranged in the opening part of the outside air intake opening, the rotary screen 67 is arranged in the inside of an engine room 63 formed for storing an engine.

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 for cooling an engine.

[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, an oscillating sorting unit is disposed immediately below the threshing unit, and the engine is interlocked to the traveling unit, the cutting unit, the threshing unit, and the oscillating sorting unit via a transmission mechanism.

[0003] As a structure for cooling such an engine, an outer wall of an engine room accommodating the engine is provided.
A rotary having an outside air intake port for inhaling outside air for cooling the engine, and a radiator connected to the outside air intake port, and a cylindrical screen body rotatably rotatable around an axis at the outside air intake port. The screen is fixed, and the outside air is sucked through a plurality of suction holes formed in the screen body, and the engine is cooled by the outside air.

[0004]

However, in the above-mentioned conventional combine, since the rotary screen is mounted on the outer wall of the engine room, the rotary screen is exposed to the outside of the machine body, and the screen body is Large dust easily adheres to the surface of the sample, and the suction efficiency may be reduced.

Further, since the rotary screen is fixed to the outside air inlet, the rotary screen must be removed from the outside air inlet, the radiator and the rotary screen must be maintained, and then the rotary screen must be attached to the outside air inlet. Maintenance work for the radiator and rotary screen is complicated,
It took a lot of effort and time.

[0006]

Therefore, according to the present invention, a radiator is connected to an outside air suction port for sucking outside air for cooling an engine, and a rotary screen having a rotatable screen body is used for outside air suction. In the engine cooling structure of the combine provided in the opening of the mouth, the rotary screen is disposed inside an engine room formed to accommodate the engine.

The rotary screen is provided at the outside air inlet so as to be freely opened and closed.

[0008] An oil cooler is provided on the front side of the radiator so as to be freely opened and closed.

In the rotary screen, a rotating motor is connected to the screen main body in an interlocking manner, and the rotating motor is disposed inside the screen main body.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A combiner according to the present invention has a radiator connected to an outside air suction port for sucking outside air for cooling an engine, and a rotary screen having a rotatable screen main body. Is provided in the opening of the first embodiment.

In addition, according to the present invention, the rotary screen is disposed inside an engine room formed to accommodate the engine.

Therefore, the screen main body of the rotary screen is not exposed to the outside of the machine body, large dust does not adhere to the screen main body, and the suction efficiency by the rotary screen can be improved.

Further, by providing a rotary screen at the outside air intake port so as to be openable and closable, the front of the radiator can be opened by opening the rotary screen, thereby removing dust adhering to the surface of the radiator and removing the rotary screen. It is possible to easily perform maintenance work such as lubrication to the drive unit.

Further, by disposing an oil cooler on the front side of the radiator so that it can be opened and closed, the front of the radiator can be completely opened by opening the oil cooler.
The maintenance work of the oil cooler itself can be easily performed.

Further, the rotary screen can be made compact by connecting the rotating motor to the screen main body in an interlocking manner and arranging the rotating motor inside the screen main body.

[0016]

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

FIG. 1 shows a general-purpose combine serving as a combine 1 according to the present invention. The combine 1 has a pair of left and right crawler-type traveling sections 3,
3, a mowing unit 4 is provided at the front end of the body frame 2 so as to be able to move up and down, and a transport unit 5 is provided at a position immediately behind the mowing unit 4. The threshing unit 6 is disposed at a position immediately below the threshing unit 6, and the rocking sorting unit 7 is disposed at the position immediately below the threshing unit 6 at the upper rear portion of the rocking sorting unit 7. A waste processing unit 8 is provided.

The combiner 1 is provided with an operating section 9 at the front end of the machine body frame 2 and immediately above the transport section 5 and at a position immediately behind the operating section 9 and at a threshing section 6. The grain storage unit 10 is disposed at a position directly above the grain storage unit 10, and a position immediately behind the grain storage unit 10, directly above the rear end of the swing sorting unit 7 and directly above the straw processing unit 8. The prime mover unit 11 is disposed at the position.

The traveling section 3 has a traveling frame 12 attached to a lower portion of the body frame 2, and a transmission 13 interlocked with a prime mover section 11 is provided at a front end of the traveling frame 12. While the traveling frame
An idler wheel 15 is rotatably supported at the rear end of the wheel 12, and a crawler belt 16 is wound between the drive wheel 14 and the idler wheel 15. In the figure, reference numeral 17 denotes a rolling wheel.

The cutting section 4 is provided with a platform 18 connected to the leading end of the transporting section 5, the scraping reel 19 is rotatably mounted on the upper end of the platform 18, and the cutting section 4 is mounted on the lower end of the platform 18. The blade device 20 is laid horizontally, and the same blade device
A lateral feed auger 21 is rotatably mounted behind the 20.
In the figure, 22 is a divider, and 23 is a transmission mechanism.

Then, the root portion of the cereal rod is cut by the cutting blade device 20 while the cereal rod set in the field is being scraped by the raking reel 19, and then the trajectory is cut by the lateral auger 21 in the center of the machine body. Are collected and delivered to the rear transport unit 5.

The transport unit 5 has a feeder house 24 mounted on the front end of the machine frame 2 so as to be vertically rotatable, and a conveyor 25 is disposed inside the feeder house 24, while the feeder house 24 is conveyed to an upper portion of the front end of the machine frame 2. The beater 26 is mounted so as to be rotatable. In the figure, reference numeral 27 denotes a hydraulic cylinder for moving the feeder house 24 up and down.

The grain rods cut by the cutting unit 4 are conveyed to the rear threshing unit 6 by the conveying conveyor 25 and the conveying beater 26.

The threshing unit 6 includes a first rotor 28 and a second rotor 29
Are arranged at an interval in the front-rear direction with the axis line extending in the left-right width direction, and receiving nets 30, 31 are disposed immediately below the rotors 28, 29. In the figure, 32 and 33 are screw blades formed on the outer peripheral portions of the rotors 28 and 29, 34 is toothing, 35 and 36 are upper walls, and 37 is the right end of the first rotor 28 and the right of the second rotor 29. It is a communication path that communicates and connects with the end.

Then, the cereal rods transported by the transport unit 5 are threshed while moving from the left end to the right end of the first rotor 28 by the action of the first rotor 28,
By the action of the rotor 29, threshing is performed while moving from the right end to the left end of the second rotor 29.
, And moves to the lower swing sorting unit 7, while the straw moves to the rear straw processing unit 8 behind.

The swing sorting section 7 includes a feed pan 38 and a chaff sheave 39 just below the first rotor 28 and the second rotor 29.
A rocking body 41 formed integrally with the rocker and a grain sheave 40 is disposed so as to be able to rock in the vertical direction. Set up
The Karino 42 and the lower part of the rocking body 41 are connected to each other by an air passage 43, and further, a grain receiving gutter 44 is provided below and below the rocking body 41.

Then, by rocking the rocking body 41, the grain layer is leveled by the feed pan 38 to improve the efficiency of the sorting, and after performing the specific gravity sorting, the chaff sheave 39 reduces the grain and the waste. Coarse screening, and then
The grains and the straw are finely sorted by the Karino Minami 40 and the Kara Minoh from the Kara Minoh 42, and the grains are moved to the grain receiving trough 44, while the straw is moved to the straw processing unit 8 to remove the grains. And waste straw.

The straw processing unit 8 is provided with a substantially cylindrical transfer beater 62 at a position immediately behind the second rotor 29 so as to be rotatable with its axis directed in the left-right width direction. The suction fan 46 is disposed so as to be rotatable with the axis line extending in the left-right width direction, and a substantially cylindrical cutter 45 is provided at a position behind the suction fan 46.
Is arranged. In the figure, 47 is a cutter blade.

Then, the straw that has been threshed in the threshing unit 6 is transported to the cutter 45 by the action of the transport beater 62,
After being crushed by the cutter 45, it is discharged to the outside of the machine body, and on the other hand, the straw sorted by the swinging sorting section 7 by the action of the suction fan 46 is discharged to the outside of the machine body.

The operating section 9 is provided with a substantially rectangular box-shaped cabin 48 at the upper center of the front end of the body frame 2.
A seat 49 is disposed at the center rear of the seat in a plan view, a front column 50 is disposed at a position in front of the seat 49, and a steering wheel 51 and a shift lever 52 are provided at an upper end of the front column 50. Arrange the side column 53 on the left side of the
Various operation switches 54 are provided at the upper end of the side column 53. In the figure, 55 is a windshield, 56 is a ceiling wall, 57
Is an opening / closing door.

The grain storage unit 10 has a grain tank 58 disposed immediately above the first rotor 28 and the second rotor 29, and a grain receiving trough 44 connected to the grain tank 58 via a grain conveyor 59. The discharge auger 60 is communicatively connected to the Glen tank 58 while being communicatively connected.

The grains sorted by the swinging sorting unit 7 are stored in the Glen tank 58, and can be discharged to the outside of the machine body by the discharge auger 60.

The prime mover section 11 has a substantially rectangular box-shaped engine room 63 at the rear right side of the fuselage.
The engine 61 is arranged inside the
It is linked to each power mechanism section such as 20 and the mission 13 via a transmission mechanism (not shown). In the figure, 70 is an engine room cover pivotally attached to the right rear end of the fuselage so as to open and close rightward, and 71 is a cover support.

Then, by driving the engine 61, the respective power mechanisms are operated in conjunction with each other.

As shown in FIGS. 2 to 8, the motor unit 11 has a rectangular box-shaped radiator 64 disposed on the right side of the engine 61, and a suction duct 65 on the right side of the radiator 64.
The suction end of the suction duct 65 is connected to the outside end of the suction duct 65 for sucking outside air for cooling the engine 61.
A cylindrical screen body is formed at the outside air intake port 66.
A rotary screen 67 configured to be rotatable is provided so as to be freely opened and closed in the vertical direction. In the figure, reference numeral 68 denotes a suction fan disposed immediately behind the radiator 64, and reference numeral 69 denotes an interlocking mechanism for interlockingly connecting the suction fan 68 to the engine 61.

Then, the suction fan 68 is operated in conjunction with the driving of the engine 61 to suck the outside air from the outside air inlet 66,
Cooled by radiator 64, the engine is cooled by the outside air
When the outside air is sucked from the outside air suction port 66, dust mixed in the outside air is removed by the rotary screen 67.

As described above, since the rotary screen 67 is disposed inside the engine room 63 formed to accommodate the engine 61, the screen main body 81 of the rotary screen 67 is not exposed to the outside of the machine body, Large dust does not adhere to the main body 81, and the suction efficiency of the rotary screen 67 can be improved.

Further, since the rotary screen 67 is provided at the outside air inlet 66 so as to be openable and closable, the front of the radiator 64 can be opened by opening the rotary screen 67, and the rotary screen 67 adheres to the surface of the radiator 64. Maintenance work such as removal of dust and lubrication of the drive unit of the rotary screen 67 can be easily performed.

The suction duct 65 has a base end of the base-side duct forming frame 72 attached to the front surface of the radiator 64, and a base end of the front-side duct forming frame 73 attached to the front end of the base-side duct forming body 72. The oil cooler 74 is provided inside the base end side duct constituting frame 72. That is, the proximal upper wall 75
The oil cooler support 76 is attached downward, and the upper end of the oil cooler 74 is rotatably attached to the lower end of the oil cooler support 76 in the front-rear direction. In the figure, 77 is an oil cooler receiving stand, and 127 is a connecting hose.

As described above, since the oil cooler 74 is provided at the front side of the radiator 64 so as to be openable and closable, the front of the radiator 64 can be completely opened by opening the oil cooler 74. The maintenance work of the radiator 64 and the maintenance work of the oil cooler 74 itself can be easily performed.

The rotary screen 67 includes a suction duct 65
By attaching the upper end of a rectangular frame-shaped support frame 79 having a circular opening 78 to the upper end of the outside air intake port 66 via a hinge 80, the support frame 79 is bounced upward at the outside air intake port 66. A cylindrical screen main body 81 is rotatably arranged outside the opening 78 of the support frame 79. In the figure, 82 and 83 are packings, and 97 is a stopper.

The screen main body 81 has the bases of three supports 85 radially attached to the distal end of the rotating shaft 84.
A circular support frame 86 is attached to the tip of the support frame 86, and a disk-like net 87 is attached to the circular opening of the support frame 86, and a cylindrical net 88 is attached to the periphery of the support frame 86. A circular frame 89 is attached to the periphery of the opening of the net 88, and a brush 90 attached to the periphery of the opening of the outside air inlet 66 is in contact with the outer periphery of the frame 89. In the figure, reference numeral 107 denotes a substantially L-shaped shaft support attached to the lower portion of the support frame 79, and reference numeral 108 denotes a shaft support boss attached to the tip of the shaft support 107.

The rotary screen 67 has a support frame.
A motor support bar 91 is installed inside the opening 78 of the motor 79, a motor support plate 92 is mounted in the middle of the motor support bar 91, an electric motor 93 is mounted on the motor support plate 92, and the motor 93 is screened. It is mounted with it positioned inside the main body 81, and the screen main body 81 is attached to the output shaft 94 of the motor 93.
Are linked.

That is, a small-diameter drive-side spur gear 95 is attached to the output shaft 94 of the motor 93, and a large-diameter driven-side spur gear 96 is attached to the rotation shaft 84 of the screen main body 81.
The screen main body 81 is interlockingly connected to the motor 93 by meshing 95 and 96 so that the screen main body 81 can be rotated with high torque.

As described above, since the motor 93 is provided inside the screen main body 81, the rotary screen
The motor 93 can be cooled by the air for cooling the engine 61 sucked from the screen main body 81, and the motor 93 can be operated continuously for a long time.

The rotary screen 67 has dust collecting means 98 for sucking dust attached to the screen main body 81.
Is provided.

The dust-absorbing means 98 has a structure in which a dust-absorbing duct 99 is provided at a position lateral to the screen main body 81, and a dust-absorbing fan 100 is provided in the dust-absorbing duct 99.

The dust suction duct 99 is connected to the base dust suction duct structure 101 extending along the outer peripheral portion of the screen main body 81 and the distal end of the base dust suction duct structure 101. It is formed in a substantially L-shape from a front-end-side dust suction duct structure 102 extending along the front end.

The base-side dust suction duct structure 101 is provided with a support frame 79.
The base end is continuously connected to the bottom of the
103 is formed toward the net body 88 of the screen main body 81.

The distal-side dust suction duct structure 102 has a distal-side dust suction port 104 extending from the base end to the distal end.
And a rotating shaft 84 of the screen main body 81 is rotatably supported at a tip end portion. In the figure, 105 is a bearing, and 106 is a boss for supporting the shaft.

The dust-absorbing means 98 is provided with a dust-absorbing fan 100 disposed directly below the dust-absorbing duct 99, and a dust-absorbing pipe 110 formed by vertically extending the dust-absorbing duct 99 and the suction port 109 of the dust-absorbing fan 100. To communicate with each other.
Dust pipe 112 extending vertically to the outlet 111
Are connected. In the drawing, reference numeral 113 denotes a connecting member attached to a lower portion of the suction duct 65, and reference numeral 114 denotes a packing.

As described above, since the dust suction fan 100 is disposed below the screen body 81, the dust sucked from the surface of the screen body 81 by the dust suction duct 99 falls toward the dust suction fan 100 according to gravity. Thus, dust can be smoothly absorbed.

Further, a rotary screen 67 is configured so that the screen main body 81 is rotatable with the axis of the screen main body 81 extending horizontally, and a dust suction duct of a dust suction means 98 is provided at a lower portion of the screen main body 81. Because 99 is arranged,
Dust adhering to the surface of the screen main body 81 is sucked in the direction of gravity by the dust suction duct 99, so that dust can be smoothly absorbed and clogging of the dust suction duct 99 can be prevented.

In addition, the dust suction fan 100 is
Are connected to each other by a dust suction pipe 110 extending in the vertical direction, so that the dust sucked from the surface of the screen main body 81 by the dust suction duct 99 falls toward the dust suction fan 100 according to gravity, and the dust suction is performed smoothly. This can be performed, and the clogging of the dust suction pipe 110 can be prevented.

The dust suction fan 100 is operatively connected to a threshing mechanism such as a first rotor 28 and a second rotor 29 which are operatively connected to the engine 61 via a clutch mechanism 115.

That is, as shown in FIG.
A speed reducer 117 is interlocked to an output shaft 116 via a clutch mechanism 115, and the speed reducer 117 has a first rotor 28 and a second rotor
29, while the transfer beater 62 is connected to the speed reducer 117 via the interlocking mechanism 118, and the rotating shaft 119 of the transport beater 62 is linked to the rotating shaft 120 of the dust suction fan 100.
Are interlocked and linked.

The rotary shaft 119 of the transport beater 62 has suction on the transport spiral conveyors 122, 123, 124 and the rocking body 41 of the rocking and sorting unit 7, and also on the transport conveyor 25 and the straw processing unit 8 of the transport unit 5. The fan 46 is linked and connected.

The running unit 3 is connected to the engine 61 via an interlocking mechanism 125, and the reaper 4 and the transport beater 26 of the transport unit 5 are connected to the running unit 3 in an interlocking manner.
A suction fan 68 is interlocked and connected via an interlocking mechanism 69. In the figure, 126 is a compressor.

As described above, the engine 61 has the dust suction fan 100
Are interlocked via the clutch mechanism 115, so that the operation of the dust suction fan 100 can be stopped by setting the clutch mechanism 115 to the disconnected state, and the dust suction fan 100 can be operated as necessary. Therefore, power consumption by the dust suction fan 100 can be reduced.

In particular, since the dust suction fan 100 is connected to the threshing mechanism such as the first rotor 28 and the second rotor 29 which are connected to the engine 61 via the clutch mechanism 115, the dust suction fan is connected to the threshing mechanism. Since the fan 100 can be operated, the dust suction fan 100 can be reliably operated particularly during threshing work in which dust is likely to be discharged to the outside of the machine body, and the clogging of the rotary screen 67 can be prevented.

Besides, except for the threshing operation, the dust suction fan
Since the operation of the fan 100 can be stopped, power consumption by the dust suction fan 100 can be reduced.

In the present embodiment, the clutch mechanism 115 is provided between the engine 61 and the threshing mechanism, but is not limited to this. An interposed clutch mechanism, a clutch mechanism interposed between the engine 61 and the discharge auger 60, and the like can also be used. Further, the present invention is not limited to the case where the clutch mechanism 115 and the dust suction fan 100 are mechanically linked to each other.
5 and the dust suction fan 100 may be linked via a control device.

[0063]

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

(1) In the present invention, since the rotary screen is disposed inside the engine room formed to house the engine, the screen main body of the rotary screen is not exposed to the outside of the machine body, and The large screen dust does not adhere, and the suction efficiency by the rotary screen can be improved.

(2) In the present invention, since the rotary screen is provided to be openable and closable at the outside air inlet, the front of the radiator can be opened by opening the rotary screen, and the rotary screen is attached to the surface of the radiator. Maintenance work such as removal of dust and lubrication to the drive unit of the rotary screen can be easily performed.

(3) In the present invention, since the oil cooler is disposed at the front side of the radiator so as to be freely opened and closed, the front of the radiator can be completely opened by opening the oil cooler. And the oil cooler itself can be easily maintained.

(4) In the present invention, a rotary motor is interlocked and connected to the screen main body, and the rotary motor is disposed inside the screen main body, so that the rotary screen is made compact. Can be.

[Brief description of the drawings]

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

FIG. 2 is a front view showing a rotary screen.

FIG. 3 is a front view showing a screen main body.

FIG. 4 is a side sectional view showing a rotary screen.

FIG. 5 is a side sectional view showing a screen main body.

FIG. 6 is a plan sectional view showing a suction fan.

FIG. 7 is a plan sectional view showing a screen main body.

FIG. 8 is a rear view showing the screen main body.

FIG. 9 is a power transmission diagram showing a power transmission path from the engine to each mechanism.

[Description of Signs] 1 Combine 2 Airframe 3 Running section 4 Cutting section 5 Conveying section 6 Threshing section 7 Swing sorting section 8 Drainage processing section 9 Operating section 10 Kernel storage section 11 Motor unit 61 Engine 63 Engine room 64 Radiator 65 Suction duct 66 Outside air inlet 67 Rotary screen 74 Oil cooler 81 Screen body 93 Motor 98 Dust suction means 99 Dust suction duct 100 Dust suction fan 110 Dust suction pipe 112 Dust pipe 115 Clutch mechanism

Claims (4)

[Claims] A radiator (64) is communicatively connected to an outside air intake port (66) for sucking outside air for cooling an engine (61), and a screen body (81) is configured to be rotatable. The rotary screen (67) is located inside the engine room (63) formed to house the engine (61) in the combine engine cooling structure in which the engine (61) is provided at the opening of the outside air intake (66). Combined engine cooling structure. 2. The combine engine cooling structure according to claim 1, wherein the rotary screen (67) is provided at the outside air inlet (66) so as to be openable and closable. 3. An engine cooling structure for a combine engine according to claim 2, wherein an oil cooler (74) is provided at the front side of the radiator (64) so as to be openable and closable. 4. A rotary screen (67) in which a motor (93) is operatively connected to a screen main body (81), and the motor (93) is disposed inside the screen main body (81). The engine cooling structure of a combine according to any one of claims 1 to 3, characterized in that: