JP3505672B2 - Combine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine for continuously cutting and threshing grain culms. [0004] When an engine is installed in a closed casing as a main soundproofing measure for an engine disposed near a driver's seat, the engine can be cooled by both water cooling and air cooling. There is a need to do. In this case, the air cooling requires a large amount of outside air, but it is difficult to take in a necessary amount of outside air only from the installation side of the engine. In addition, it is necessary to prevent a large amount of dust from being taken in with a large amount of outside air. Accordingly, it is an object of the present invention to sufficiently take in the outside air required for air cooling of an engine provided in a closed casing, while preventing dust from being taken in. [0004] Means for Solving the Problems] However, the present invention is to provided inside the engine sealed housing, the radiator is disposed in the housing outside, the outside air to be imported from the outside air inlet with a filter to combine to be introduced to the radiator
And take in the outside air with the filter
Rotatably supported by the mouth, and from the outside air intake
Take in the outside air from which dust and straw debris has been removed
And remove the fan case
Connect the filter to the air intake and remove the filter from the outside air intake
External air taken in through the engine room using an intake fan
And a dust suction port is formed on the outer surface of the
Extend the dust port to the suction side of the radiator air-cooling fan.
It is open and air-cooled with a dust-proof countermeasure for the engine installed inside the sealed housing. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying 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) is a machine frame installed on the track frame (1), (4) is 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 including a cutting blade (9) and a culm transport mechanism (10), (11) is a hydraulic cylinder that moves the cutting unit (8) up and down via a cutting frame (12), and (13) is a straw chain. (14) A straw processing unit that faces the end, (15) is a grain tank that carries in the grains from the threshing unit (4) through a fluffing cylinder (16), and (17) is a grain tank. A discharge auger for carrying out grains outside the machine; (18) a driving cabin provided with a driving operation handle (19) and a driver's seat (20);
(21) is an engine provided below the operation cabin (18), and is configured to continuously cut and thresh grain culm. As shown in FIG. 6, reference numeral (22) in the figure denotes a handling room in which an axial-flow-type handling drum (6) suspended in the longitudinal direction of the body is provided, and (23) denotes the handling room (22). ) Is a handle for inserting cereal stems, (24) is a crimp net stretched below 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 vertically in two stages below the crimping net (24), and (28) is a front feed pan ( 26) Screening sieve line provided on the rear end side so as to be able to swing up and down, (29) a rear feed pan (27) and a chaff sheave continuously provided behind the rear end of the rear feed pan (27).
Is a Glen Sheave arranged 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), and (3)
2) Karamin, which is the main blower for supplying the sorting wind between the chaff sheave (29) and the Glensheave (30) and below the Glensheave (30), (33) is connected to the fryer (16) and the grain tank. (15) No. 1 conveyor for taking out the grains, (34) No. 2 is reduced through the No. 2 reduction unit (35), which is a No. 2 reduction device, to above the sieving line (28) of the sorting machine (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), (38) is a fourth gutter for shutting off the fan (37) and guiding the discharge of straw. The grains that have been threshed by the handling cylinder (6) and the processing cylinder (7) are oscillated by a rocking sorter
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 exhaust port (40) at the rear part of the handling chamber (22), the threshing material at the rear part of the handling cylinder (6) is fed to the processing cylinder (7), and the threshing material at the handling cylinder (6) is removed from the processing cylinder. Reprocessed by (7) and dropped on the oscillating sorter (25), the grains from the processing cylinder (7) are collected on the second conveyor (34), and the straw chips are removed by the fan (37) or It is configured to be discharged from the gate (39) to the outside of 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 the dust feeding fan (31), the Karamin (32), and the first conveyor (33) ), Second conveyor (34), swing drive shaft (36), suction / discharge dust fan (37), straw cutter (13)
a) is driven through the sorting pulley (48) of the sorting output shaft (44), and the first conveyer (33) is set on the first conveyor (33).
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 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 operation cabin (18), which is driven by connecting an air cooling fan (54) and a compressor (55) to the speed change input shaft (52). Further, in the figure, reference numeral (56) denotes an auger drive shaft for transmitting the power of the engine (21) to the auger (17), which 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 outside the housing (60). The air cooling fan (54) is disposed inside the rear machine. The cabin (1
8) A wind tunnel cover (65) on the right side of the housing (60) and 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 turning 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). In addition, 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 portion of the air cooling fan (54) to flow into the engine room (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 the housing (6) is cooled.
0) A discharge port (71) is formed on the rear surface, and the discharge port (71) is connected to 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 out 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 screen on the outer surface of a wheel-shaped screen frame including a hub (74), spokes (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) configured to rotate at a constant speed in the intake (67) is formed, and the rotary screen (66) is rotated from the outside air intake (67).
The clean outside 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 feeding passage (84) to the outer surface of the screen (66) at the center of the screen (66) and extending to the inner side, and connected to the dust feeding 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) via 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 dust-proof net (77) of the screen (66) and prevents shortage of supply of outside air required for cooling the radiator (64) and the engine (21). The wind tunnel cover (65) has a 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 openable to the outside. By engaging a lock pin (96) fixed to the machine base (3) side with a hook (95) with an operation lever provided on the lower part of the front surface via a support shaft (94) so as to be swingable,
The air outlet (68) on the inner surface of the wind tunnel cover (65) and the outlet of the dust passage (84) are connected to the outer peripheral surface of the cooling fin group (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 at 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 to the periphery of the fan case (88). A packing (98) for preventing leakage from the joint surface with the outlet of the dust passage (84) of (65) 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) via 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 discharge duct (10).
By extending and opening the air cooling fan (54) to the suction side via 2), a dust suction force can be obtained. FIG. 14 shows a net-like 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 perpendicular 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) The conduit (108) which opens downward at substantially equal intervals is laid horizontally, and air is blown from the top to the bottom 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 the water cooling efficiency of the engine (21) from decreasing. 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) via the intake duct (109). As is apparent from the above embodiments, according to the present invention, the engine (21) is provided inside the closed casing (60).
A radiator (64) is provided outside the housing (60), and an outside air intake (6) having a filter (66) is provided.
7) Introduce the outside air taken in from the radiator (64)
In the combine, a dust-proof net (77) is stretched.
Rotate the filter (66) to the outside air intake (67)
And then fill it from the outside air intake (67).
Air from which dust and straw debris has been removed
Fan case to install the intake fan (87) inside
(88) Inlet (91) connected to outside air inlet (67)
Let the filter (66) through the outside air intake (67)
External air taken in through the air intake fan (87).
Into the engine room (61) and the dust inlet (86)
Is formed on the outer surface of the dustproof net (77), and the dust suction port (86) is
The radiator (64) extends to the suction side of the air cooling fan (54).
It is installed and opened , and is effective in cooling the engine (21) installed in the closed casing (60).

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 modification 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 the radiator cooling fin portion. [Description of Signs] (21) Engine (60) Enclosed type casing (64) Radiator (66) Rotary screen (filter) (67) Outside air intake

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 41/00-41/16 B60K 11/04 F01P 5/06 511

Claims (1)

Claims: Claims 1. An engine (21) is hermetically sealed (60).
Is provided inside the said housing (60) external to the radiator (6
4), a radiator (64) for taking in outside air taken from an outside air intake (67) having a filter (66).
A dust-proof net (77)
The installed filter (66) is connected to the outside air intake (6).
7) is rotatably supported by the outside air intake (6).
Remove dust and straw debris from 7) through filter (66)
Take in the outside air removed and install the intake fan (87) inside
Air inlet (91) of the fan case (88)
(67) and connect the filter from the outside air intake (67).
External air taken in through the filter (66)
7) and introduced into the engine room (61),
A dust suction port (86) is formed on the outer surface of the dustproof net (77),
The mouth (86) is connected to the air cooling fan (54) of the radiator (64).
Characterized in that it is extended to the suction side and is opened .