JPH1056846A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester capable of simplifying a dustproof structure, preventing the temperature in the interior of a casing from increasing and improving the sound proofing and cooling efficiency of an engine by installing a blast fan for feeding the outside air into the interior of the casing. SOLUTION: This combine harvester is obtained by installing a blast fan 87 for feeding the outside air into a casing 60 in the combine harvester for internally installing an engine 21 in the casing 60. Furthermore, the outside air taken through a dustproof screen 66 is preferably fed into the interior of the casing 60 with the blast fan 87 and a radiator is preferably arranged on the outside of the casing 60 to make a dust collecting part of the dustproof screen 66 for taking in the dustless air communicate with the negative pressure side of an air-cooling fan 54 of the radiator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine for continuously cutting and threshing grain culms.

[0002]

As a soundproofing measure for an engine disposed near the driver's seat, if the engine is installed in a closed housing, the engine will be insufficiently cooled and the engine will be easily overheated. is there.

[0003]

According to the present invention, there is provided a combine for mounting an engine in a housing, wherein an air blowing fan for feeding outside air into the housing is provided. This allows forcible ventilation while maintaining the inside of the housing at a positive pressure, thereby preventing temperature rise inside the housing and preventing dust generated by harvesting work from entering the inside of the housing. In addition, it is possible to easily improve the soundproofing and dustproofing of the engine and the cooling efficiency.

In addition, the outside air taken in through the dust removing screen is configured to be sent into the inside of the housing by an air supply fan, so that both soundproofing and dustproofing of the engine can be easily performed.

Further, a radiator is provided outside the housing,
The air collecting fan of the radiator is connected to the negative pressure side of the air cooling fan, and the dust collecting section of the dust removing screen that takes in the dust removing air can remove dust adhering to the dust removing screen using the air cooling fan.
The dust screen can be easily prevented from being clogged.

In addition, since the air guide path of the air supply fan for forcing the outside air into the housing is bent, engine noise inside the housing can be prevented from being transmitted from the air guide path to the outside. It is possible to easily reduce engine noise leaking to the outside.

Further, since the inside of the casing communicates with the sorting section of the threshing section, hot air inside the casing can be sent to the sorting section, and engine noise leaking from the ventilation outlet of the casing to the outside can be easily reduced. It can be reduced.

[0008] Further, the dust-removed air is introduced into the inside of the housing and the radiator outside the housing through the same dust-removing screen. And the like can be easily reduced.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a plan view of the engine unit, FIG. 2 is a left side view of the entire combine, FIG. 3 is a plan view thereof, FIG. 4 is a right side view thereof, and FIG. 5 is a right side perspective view thereof. A track frame on which a traveling crawler (2) is mounted, (3) a machine frame mounted on the track frame (1), (4) a feed chain (5) stretched to the left side, and a handling cylinder (6) and processing Threshing unit, which is a threshing machine with a built-in body (7), (8)
Is a cutting unit provided with a cutting blade (9) and a culm transport mechanism (10), (11) is a hydraulic cylinder that moves the cutting unit (8) up and down through a cutting frame (12), and (13) is a straw chain. (14) A straw processing unit facing the end, (15) a grain tank for carrying the grains from the threshing unit (4) through a fryer (16), and (17) a tank for the tank (15). A discharge auger for carrying out grains outside the machine; (18) a driving cabin having a driving operation handle (19) and a driver's seat (20);
An engine (21) is provided below the driving cabin (18), and is configured to continuously cut and threat grain culms.

As shown in FIG. 6, reference numeral (22) in the drawing denotes a handling room in which an axial-flow-type handling cylinder (6) suspended in the longitudinal direction of the body is provided, and (23) denotes a handling room (22). ) Is a handle for inserting cereal stems, (24) is a crimp net stretched under the handling chamber (22), and (25) is rocking in the front-rear direction with the front end facing the crimp net (24) below. A swinging sorting machine freely supported, (26) and (27) are front and rear feed pans of a sorting machine (25) arranged in two stages above and below the crimping net (24), and (28) is a front feed pan ( 26) A sorting screen line provided on the rear end side so as to be swingable up and down, (29) is a chaff sheave continuously provided behind the rear end of the rear feed pan (27) and (30).
Is a Glen Sheave disposed below the chaff sheave (29),
(31) is a dust fan which is a pre-fan which feeds a sorting wind between upper and lower feed pans (26) and (27).
2) Karamin, which is the main blower for supplying the sorting wind between the chaff sheave (29) and the Glen Sheave (30) and below the Glen Sheave (30), (33) communicates with the graining cylinder (16) and the grain tank (15) No. 1 conveyor for taking out grains, (34) Reduction of No. 2 via No. 2 reduction conveyor (35), which is a No. 2 reduction device, above the sieving line (28) of the sorter (25) No. 2 conveyor, (36) is an oscillating drive shaft for moving the sorter (25) back and forth and up and down,
(37) is a suction / discharge fan disposed above the rear end of the sorting board (25), and (38) is a fourth gutter for shutting off the fan (37) and guiding the discharge of the straw. The grains that have been threshed by the handling cylinder (6) and the processing cylinder (7) are rocked and sorted (2).
In step 5), only the sized product is taken out to the grain tank (15), the waste is discharged from the third end (39) at the rear end of the sorting machine (25), and the waste is discharged into a straw chain. (14)
To the straw processing unit (13) through the straw cutter (1).
It is configured to be cut by 3a) and discharged outside the machine. In addition, through the dust outlet (40) at the rear of the handling chamber (22), the rear of the handling cylinder (6) is fed to the processing cylinder (7), and the debris of the handling cylinder (6) is processed. Reprocessed by (7) and dropped on the oscillating sorter (25), the grain from the processing cylinder (7) is collected on the second conveyor (34), and the straw waste is removed by the fan (37) or It is configured to be discharged from the gate (39) outside the machine.

Further, as shown in FIG. 7, a drive shaft (42) with a universal joint for transmitting the power of the engine (21) to the counter case (41) is provided, and a threshing output shaft (43) and a sorting output shaft (44). ), Reaping output shaft (4
5) The traveling output shaft (46) is provided on the counter case (41). The handling cylinder (6) and the processing cylinder (7) are driven via a threshing pulley (47) provided on the threshing output shaft (43), and a dust sending fan (31), a Karamin (32), and a first conveyor (33). ), Second conveyor (34), swing drive shaft (36), suction / discharge dust fan (37), straw cutter (13)
a) is driven via the sorting pulley (48) of the sorting output shaft (44), and the first conveyer (33) is fed to the fryer cylinder (1).
6) to the second conveyor (34), the second reduction conveyor (3)
5) is linked to each other. The cutting output shaft (4)
The cutting input shaft (49) of the cutting unit (8) is connected to the belt by belt connection to 5), power is transmitted to the feed chain (5) through the cutting input shaft (49), and power is supplied to each part of the cutting unit (8). Tell Further, the traveling output shaft (46) is belt-coupled to an input shaft (52) of a traveling transmission gear case (51) including a hydraulic continuously variable transmission (50) at an input portion, and left and right independent output shafts of the case (51). Power is transmitted to the left and right traveling crawlers (2) and (2) via (53).

In FIG. 9, reference numeral (54) denotes an air-cooling fan for supplying cooling air to the engine (21);
5) is a compressor for cooling the operating cabin (18), which is driven by connecting an air cooling fan (54) and a compressor (55) to the speed change input shaft (52). An auger drive shaft (56) for transmitting the power of the engine (21) to the auger (17) is driven by connecting the auger drive shaft (56) to the drive shaft (42). The upper discharge auger (17) is connected to a drive shaft (56) via a shaft coupling (57) and a lower discharge auger (58) and a vertical discharge auger (59) of the tank (15).
To drive the augers (58), (59), (17).

Further, as shown in FIGS. 1, 8 and 9, an engine (21) is provided inside an engine room (61) in a substantially closed rectangular shape formed by a housing (60).
The drive shaft (41) is mounted via the left side opening (62) of the radiator (64), and the engine (21) water cooling radiator (64) is installed rightward on the outside front of the housing (60). The air cooling fan (54) is provided inside the rear machine. The cabin (1
8) A wind tunnel cover (65) on the right side of the housing (60) and the front side of the radiator (64) corresponding to the lower right side of the fuselage.
A circular outside air intake (67) provided with a rotary screen (66), which is a rotary filter for rotating and removing dust on the suction surface, is opened on the outer surface of the wind tunnel cover (65). 65) Opening a rectangular exhaust port (68) on the front side of the cooling fin group (corrugate) (64a) on the front side of the radiator (64) on the inner surface, and the rotary screen (66) and the radiator (6).
Outside air is taken into the air cooling fan (54) on the rear side of the radiator (64) via 4) to cool the radiator (64).

An inlet (6) is provided at the front of the housing (60).
9), and an introduction guide plate (70) for allowing exhaust air from the rear half of the air cooling fan (54) to flow into the engine chamber (61) from the introduction port (69) to cool the radiator (64). A part of the cooling air of the fan (54) is introduced into the engine room (61), and
0) A discharge port (71) is formed on the rear surface, and the discharge port (71) communicates with the outside air intake (72) of the dust sending fan (31) provided in the threshing unit (4) via a discharge guide plate (73). Then, outside air is introduced into and passed through the engine room (61), the engine (21) is cooled by both water cooling and air cooling, and warm air that has passed through the engine room (61) is taken in from the outlet (710) through the inlet (710). The air is supplied to the dust-feeding fan (31) via the air-conditioning device (72), and the warm air from the engine room (61) is used as a separation wind.

As shown in FIGS. 10, 11 and 12, the rotary screen (66) has a circular dust-proof mesh on the outer surface of a wheel-shaped screen frame comprising a hub (74), a spoke (75) and a rim (76). (77) The outside air intake (67) of the wind tunnel cover (65)
The screen (66) is placed inside the screen shaft (78).
The screen (6) is rotatably supported through a pair of rollers (79), which are bearings supported at 120 ° intervals around the outside air intake (67).
The inner edge of 6) is rolled and supported, and the wind tunnel cover (6)
5) A rim (76) of the screen (66) is sandwiched between a driving wheel (81) rotated by an electric motor (80) mounted therein and a pressing roller (82), and the outside air of the wind tunnel cover (65) is opened. The rotary screen (66) for rotating the intake (67) at a constant speed is formed, and the rotary screen (66) is rotated from the outside air intake (67).
And clean air from which dust and straw debris has been removed is taken into the wind tunnel cover (65).

A brush body (83) is attached around the outside air intake (67) of the wind tunnel cover (65) so as to bring the bristle into sliding contact with the outer peripheral surface of the screen (66). The gap (66) is closed to prevent dust from entering the wind tunnel cover (65) from this gap.

Further, a dust passage (84) penetrating from the outer surface of the cover (65) to the inner surface of the cover (65) is provided in front of the outside air intake (67) of the wind tunnel cover (65). A dust suction cover (85) extending from the inlet of the dust passage (84) to the outside of the screen (66) at the center on the outer surface of the screen (66), and a dust inlet (86) communicating with the dust passage (84). Is formed on the outer surface of the dustproof net (77) of the screen (66) from the center to the outer edge, and an air cooling fan (5) is provided in front of the housing (60).
4) An intake fan (87) is provided above and the shaft of the intake fan (87) is belt-connected to the axis of the air-cooling fan (54).
An exhaust port (89) of a fan case (88) in which an intake fan (87) is provided is opened to the exhaust side of the air cooling fan (54) via a dust exhaust guide (90), and the fan case (88) is opened. ) Is connected to the outlet of the dust passage (84) on the inner surface of the cover (65) through the dust suction duct (92), and adheres to the outer surface and the mesh of the dustproof net (77) of the screen (66). The dust and straw debris from the dust inlet (86)
From the air-cooling fan (54),
This prevents clogging of the dustproof net (77) of the screen (66) and prevents shortage of external air required for cooling the radiator (64) and the engine (21).

The wind tunnel cover (65) has its rear surface supported on the right rear surface of the housing (60) through two sets of upper and lower hinges (93) so as to be freely openable to the outside. By engaging a hook (95) with an operation lever, which is swingably provided on a lower part of the front surface via a support shaft (94), with a lock pin (96) fixed to the machine base (3) side,
The air outlet (68) on the inner surface of the wind tunnel cover (65) and the outlet of the dust feeding passage (84) are connected to the outer peripheral surface of the cooling fins (64a) on the front side of the radiator (64) and the dust suction duct (92) of the fan case (88). When the hook (95) is detached from the lock pin (96) when the hook (95) is fixed to the set position to be joined to the outer peripheral surface of the suction port and maintenance is performed,
The wind tunnel cover (65) can be opened to the outside of the machine.

The air outlet (68) of the wind tunnel cover (65)
A gasket (97) for preventing leakage from the joint surface with the outer peripheral surface of the cooling fin portion (64a) is attached around the fan, and a wind tunnel cover is provided around the intake port at the tip of the dust suction duct (92) of the fan case (88). A packing (98) for preventing leakage from the joint surface of the (65) with the outlet of the dust feeding passage (84) is attached. Further, an L-shaped baffle plate (99) is mounted inside the wind tunnel cover (65) above the dust suction port (86) inside the screen (66) to prevent the outside air from staying inside the wind tunnel cover (65). Then, the outside air is efficiently led out to the radiator (64) side.

FIG. 13 shows that the intake port (91) of the fan case (88) is connected to the inside of the wind tunnel cover (65) through the intake duct (100) and the exhaust port (91) of the fan case (88). 89) is connected to the inlet (69) of the housing (60) through the exhaust duct (101),
The outside air taken into the wind tunnel cover (65) from the outside air intake (67) through the screen (66) is introduced into the engine room (61) using an intake fan (87).
A system for taking in outside air into the engine compartment (61) is disclosed. The wind tunnel cover (6
5) The outlet of the dust passage (84) on the inner surface is connected to the dust duct (10).
By extending the air cooling fan (54) to the suction side through 2) and opening the air cooling fan (54), a dust suction force can be obtained.

As is clear from the above, the engine (2)
In the combine for installing 1) in the housing (60),
An intake fan (87), which is an air supply fan for feeding outside air, is provided inside the casing (60), and the outside air of the intake fan (87) is forced while maintaining the inside of the casing (60) in a positive pressure state. Ventilation can be performed to prevent the temperature inside the housing (60) from rising, and dust generated by the harvesting operation can be removed from the housing (60).
It is possible to prevent intrusion into the interior, to improve the soundproofing and dustproofing of the engine (21), to improve the cooling efficiency, and to improve the efficiency of the engine (21). (60) The radiator (64) is sent inside to perform both soundproofing and dustproofing of the engine (21). A radiator (64) is disposed outside the casing (60), and the air-cooling fan (54) of the radiator (64) is negatively charged. On the pressure side, a rotary screen (6
6) The dust collecting part is communicated with the rotary screen (66).
The dust adhering to the rotary screen (66) is removed by using an air cooling fan (54) to prevent clogging of the rotary screen (66).

Further, an intake duct (10) serving as a wind guide path of an intake fan (87) for forcing outside air into the housing (60).
0) and the exhaust duct (101) are bent, and the engine (21) noise inside the housing (60) is reduced by the duct (1).
00) prevent transmission from (101) to the outside, reduce the engine (21) noise leaking to the outside of the housing (60), and connect the inside of the housing (60) to the sorting unit of the threshing unit (4). , The hot air inside the housing (60) is sent to the sorting unit, and the noise of the engine (21) leaking to the outside from the outlet (71), which is the ventilation outlet of the housing (60), is reduced. Dust-free air is taken into the casing (60) inside and the radiator (64) outside the casing (60) via the rotary screen (66), and the rotary screen (66) is used for simplification and manufacture of a dust-proof structure. It is configured to reduce costs and the like.

FIG. 14 shows a net-shaped dust-proof belt (105) stretched between a driving roller (103) and a driven roller (104) connected to an electric motor (80) and slid to remove dust on the suction surface. Disclosed is a sliding screen (106) which is a sliding filter. In the case of the slide screen (106), the dust suction port (86) is formed over the entire width of the belt (105) in a direction orthogonal to the moving direction of the belt (105), so that the outer surface of the belt (105) of the screen (106) is formed. In addition, the slide screen can absorb dust and straw debris adhering to the mesh, and this slide screen has an external appearance at a portion where the circular rotary screen (66) and the outside air intake (67) as described above are difficult to design. Can be incorporated without loss,
Further, the screen is doubled, which is effective for dust prevention. The outside air intake of the wind tunnel cover (65) in which the slide screen (106) is provided is formed in a square shape.

FIG. 15 shows a plurality of blast ports (10) in the upper part on the front side of the cooling fin group (64a) of the radiator (64).
7) is laid on a conduit (108) extending downward at substantially equal intervals, and air is blown downward from above on the front side of the cooling fin group (64a), and air is blown on the front side of the cooling fin group (64a). By forming curtains, cooling fins (64
It prevents dust from adhering to a) and prevents a decrease in water cooling efficiency of the engine (21). In this case, the air can be obtained by opening one end of the conduit (108) to the exhaust side of the air cooling fan (54) through the intake duct (109).

[0025]

As is clear from the above embodiments, the present invention relates to a combine fan in which an engine (21) is installed in a housing (60). 87), and an air supply fan (8
By introducing the outside air of (7), it is possible to forcibly perform ventilation while maintaining the inside of the housing (60) in a positive pressure state.
0) The internal temperature can be prevented from rising, and the dust generated by the harvesting operation can be prevented from entering the inside of the casing (60), so that the soundproofing and dustproofing of the engine (21) and the cooling efficiency can be easily improved. Can be done.

The outside air taken in through the dust removing screen (66) is supplied to the housing (6) by an air supply fan (87).
0) The engine (2)
Both the soundproofing and dustproofing of 1) can be easily performed.

The radiator (6) is provided outside the housing (60).
4), and the air cooling fan (5) of the radiator (64)
4) On the negative pressure side, a dust removal screen (6
The dust collecting section of 6) is communicated with the dust removing screen (6).
The dust adhering to 6) can be removed using the air cooling fan (54), and the dust screen (66) can be easily prevented from being clogged.

The air guide fan (87) for sending outside air into the housing (60) is formed by bending the air guide paths (100) and (101), and the engine (2) inside the housing (60) is bent.
1) The noise can be prevented from being transmitted to the outside from the air guide paths (100) and (101), and the engine (21) noise leaking to the outside of the housing (60) can be easily reduced.

Further, the inside of the casing (60) is communicated with the sorting section of the threshing section (4), so that the hot air inside the casing (60) can be sent to the sorting section and the casing (60) The engine (21) noise leaking to the outside from the ventilation outlet (71) can be easily reduced.

Further, it is configured such that dust-free air is introduced into the inside of the housing (60) and the radiator (64) outside the housing (60) through the same dust-screening screen (66). The dual use of the screen (66) facilitates simplification of the dustproof structure and reduction of manufacturing cost.

[Brief description of the drawings]

FIG. 1 is a plan view of an engine unit.

FIG. 2 is an overall left side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is an overall right side view of the combine.

FIG. 5 is an overall right perspective view of the combine.

FIG. 6 is a sectional side view of a threshing unit.

FIG. 7 is a drive system diagram.

FIG. 8 is a side view of the engine unit.

FIG. 9 is a front view of an engine unit.

FIG. 10 is a side view of the rotary screen unit.

FIG. 11 is a plan view of a rotary screen unit.

FIG. 12 is a front view of a rotary screen unit.

FIG. 13 is a plan view of an engine unit showing a modified example of an outside air introduction path to an engine room.

FIG. 14 is a perspective view of a slide screen.

FIG. 15 is a front view of the radiator showing a dustproof structure of a radiator cooling fin portion.

[Explanation of symbols]

 (4) Threshing unit (21) Engine (54) Air-cooling fan (60) Housing (64) Radiator (66) Rotary screen (dust-removal screen) (87) Intake fan (air supply fan) (100) Intake duct (wind guide) (Road) (101) Exhaust duct (wind duct)

Claims (6)

[Claims] 1. A combine for installing an engine in a housing, wherein an air supply fan for feeding outside air into the housing is provided. 2. The combine according to claim 1, wherein the outside air taken in through the dust removing screen is sent into the inside of the housing by an air supply fan. 3. A combiner according to claim 2, wherein a radiator is provided outside the housing, and a dust collecting portion of a dust removing screen for taking in dust removing air is communicated with the air cooling fan negative pressure side of the radiator. . 4. The combine according to claim 1, wherein the air guide path of an air supply fan for sending outside air into the housing is bent. 5. The combine according to claim 1, wherein the inside of the housing is communicated with a sorting unit of the threshing unit. 6. The combine according to claim 1, wherein the dust-removed air is taken into the inside of the housing and the radiator outside the housing via the same dust-screen.