JP3108911B2 - Combine - Google Patents

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]

Conventionally, an engine is installed at an exhaust position of an air-cooling fan that cools a radiator, so that the engine installation space is opened, noise cannot be easily reduced, and a radiator using an air-cooling fan is used. There was a problem that the cooling efficiency could not be easily improved. In addition,
Conventionally, Japanese Utility Model Publication No. 48-37220,
And Japanese Patent Application Laid-Open No. 6-17 / 1994.

[0003]

However SUMMARY OF THE INVENTION The present invention provides a combine which is disposed the engine driver's seat lower the worker Zajo, substantially sealed to the inner set of engine housing front
Adjacent to the side is arranged radiator, between the engine and the radiator causes closed shielding by the housing front, Raj
Eta ligated by introduction guide plate Tokomu blower air discharge side front of the case <br/> inlet cooling air to also guide the outside air intake side and the housing rear face of the sorting air forming part of the threshing section The outlet is connected by a guide plate , the engine installation location is substantially sealed by the housing, the outside of the inlet is closed by the radiator and the guide plate, noise can be easily reduced, and the cooling efficiency of the radiator can be reduced. Can be easily improved, and the outside of the outlet can be closed by the outside air intake side and the outlet guide plate of the separation wind forming unit, and both the exhaust heat of the engine and the soundproofing of the outlet can be easily performed. is there.

[0004]

Embodiments of the present invention will be described below in detail with reference to the drawings. Fig. 1 is an overall side view of the combine, Fig. 2
Is a plan view of the same, in which (1) is a track frame on which the traveling crawler (2) is mounted, (3) is a machine frame installed on the track frame (1), and (4) is a feed chain (5). Threshing unit, which is a threshing machine having a handling drum (6) and a processing drum (7) built therein, and a cutting blade (9) having a cutting blade (9) and a culm transport mechanism (10). Department, (11)
Is a hydraulic cylinder that raises and lowers the mowing unit (8) via the mowing frame (12), (13) is a straw processing unit that faces the end of the straw chain (14), (15) is a unit from the threshing unit (4). A grain tank for carrying the grains through a frying cylinder (16),
(17) is a discharge auger for carrying out the grains of the tank (15) out of the machine, (18) is a driving cabin provided with a driving handle (19) and a driving seat (20), and (21) is a driving cabin (18). ) This engine is provided below and is configured to continuously cut and thresh grain culms.

As shown in FIG. 3, 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 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 grains from the processing cylinder (7) are 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 FIGS. 4, 5, and 6, a drive shaft (42) with a universal joint for transmitting the power of the engine (21) to a counter case (41) is provided, and a threshing output shaft (43). The sorting output shaft (44), the cutting output shaft (45), and the traveling output shaft (46) are provided on the counter case (41). Handling cylinder (6) and processing cylinder (7) via threshing pulley (47) provided on threshing output shaft (43)
And the dust fan (31), Karamin (3)
2) 1st conveyor (33), 2nd conveyor (34),
The swing drive shaft (36), the suction / discharge dust fan (37), and the straw cutter (13a) are connected to the selection pulley (4) of the selection output shaft (44).
8) Drive through.

A work hydraulic pump (50) is provided on an input shaft (49) of a counter case (41) for connecting the drive shaft (42), and the pump (50) is driven via the input shaft (49). The hydraulic oil in the counter case (41), which also serves as an oil tank, is supplied to the hydraulic cylinder (1).
1) and the like, and at the same time, the input shaft (49) is constantly connected to the traveling output shaft (46) and the working shaft (51) via the gear (52), so that the cutting low-speed gear (53) and A working shaft (51) is connected to a sorting output shaft (44) having a cutting high-speed gear (54) engaged with the engaging shaft through a threshing clutch (56) which is turned on by a hydraulic cylinder (55). A threshing output shaft (43) is connected to the (44) via a bevel gear (57), and a threshing clutch (56)
Each of the pulleys (47) and (48) is driven through the rotator to transmit power to each unit of the threshing unit (4).

Further, a cutting low-speed clutch (60) and a cutting high-speed clutch (61) which are turned on by the hydraulic syringes (58) and (59) are provided, and the respective gears (53) and (54) of the sorting output shaft (44) are cut. The output shaft (45) is connected via the clutches (60) and (61), and the cutting output shaft (45) is supported by the cutting pulley (63) via the one-way clutch (62). The cutting pulley (63) is rotated by the low-speed and high-speed outputs of (53) and (54), while the cutting pulley (63) rotates at a higher speed than the rotation of the cutting output shaft (45). Then, a cutting input single axis (6) for driving each section of the cutting section (8).
4) The cutting pulley (63) is belt-connected to the input pulley (65), the feed chain (5) is driven via the single shaft (64), and the manual clutch (66) is connected to the single shaft (64). The two mowing shafts (67) are connected to each other via the shaft, and power is transmitted to each portion of the mowing unit (8).

Further, a traveling pulley (68) is supported on the traveling output shaft (46), and a traveling speed change case (69) for driving a pair of left and right traveling crawlers (2) (29) is provided. A hydraulic continuously variable transmission (70) incorporating a motor is mounted on a traveling transmission case (69), and a transmission (70) is mounted on a traveling pulley (68) of a traveling output shaft (46).
Of the speed change input shaft (71) of the engine (2)
1) The transmission input shaft (71) is constantly rotated by power, and the left and right traveling crawlers (2) and (2) are driven by the transmission output of the transmission (70) via the transmission gears in the transmission case. In addition, a charge pump (72) is mounted on the speed change input shaft (71), and the pump (72) is driven by the input shaft (71), so that the hydraulic oil in the counter case (41) which also serves as an oil tank is charged by the charge pump (72). 72) to replenish the transmission (70) and charge pump (7).
2) Since the operation hydraulic pump (50) is constantly driven,
Instead, the working hydraulic pressure can be supplied by using a charge pump (72).

A vehicle speed tuning output shaft (73) is provided on the traveling speed change case (69), and the output shaft (73) is increased / decreased and rotated in proportion to the forward traveling speed of the traveling crawler (2). A vehicle speed tuning pulley (75) that is supported by a (73) via a one-way clutch (74) and an input pulley (76) of the cutting input single shaft (64) are connected to a belt via a cutting tension clutch (77). Connect. When the tension clutch (77) is disengaged, the single shaft (64) is driven by the low and high speed output of the cutting output shaft (45), and when the tension clutch (77) is engaged, the vehicle speed tuning output shaft ( 73) The rotation speed is the cutting output shaft (4
5) When the rotation speed is lower than the rotation speed, the shaft (64) is driven by the cutting output shaft (45), while the rotation speed of the vehicle speed tuning output shaft (73) is higher than the rotation speed of the cutting output shaft (45) in a high-speed running state. Is high, the vehicle speed tuning output shaft (73) causes one shaft (6
4) is driven, and the mowing part (8) and the feed chain (5) are driven at a speed proportional to the running speed.

In FIG. 5, reference numeral (78) denotes an air cooling fan for supplying cooling air to the engine (21).
Reference numeral 9) denotes a compressor for cooling the operation cabin (18), which is driven by connecting an air-cooling fan (78) and a compressor (79) to the speed change input shaft (71). In FIG. 6, (70a) is a charge pump (72).
(70b) strainer to be connected to
c) is a return oil pipe of the pump (72).

As is clear from the above, the engine (2
The power of 1) is input to the counter case (41) by the drive shaft (42), and the power is distributed from the counter case (41) to the threshing unit (4), the cutting unit (8), and the traveling speed change case (69). In addition, it is possible to eliminate the problem that the engine (21) is pulled in one direction by the conventional belt lateral pulling load, thereby simplifying the installation structure of the engine (21) and improving the durability, and driving the reaper (8). In order to improve the function and omit the hydraulic piping, power for constant rotation (low speed, high speed) can be distributed from the counter case (41) to the reaping unit (8) via the reaping output shaft (45). The operator can drive the mowing unit (8) at a high speed arbitrarily, improving the work efficiency and mounting the work hydraulic pump (50) on the counter case (41) which also serves as a hydraulic tank. Jin (21) it is not necessary to provide a hydraulic pump, Habukeru tank side pipe of the hydraulic pump (50).

Further, the power of the engine (21) is input to the counter case (41) to distribute the driving force of the engine (21) to the threshing unit (4), the mowing unit (8), and the traveling speed change case (69). Reaping low speed and high speed clutch (6
0) and (61) are installed in the counter case (41), so that maintenance work such as belt adjustment can be simplified by eliminating the need for a conventional belt tension clutch, and the engine (2) can be used.
1) Simplification of the peripheral structure and vibration and sound insulation can be achieved. In addition, the threshing clutch (56) is provided inside the counter case (41), and the low speed and high speed mowing clutches (60) and (61) are disposed on the lower power transmission side of the threshing clutch (56).
The mowing unit (8) can be driven only when the threshing unit (4) is driven, and the problem that the mowing unit (8) is driven with the threshing unit (4) stopped can be eliminated, The harvesting driving force from the counter case (41) and the vehicle speed synchronized harvesting driving force from the traveling speed change case (69) are
One cutting input shaft (64), which is a cutting input shaft of the cutting unit (8).
, And while maintaining the minimum driving speed of the mowing part (8) by the mowing drive force from the counter case (41), the vehicle speed is adjusted by the vehicle speed synchronized mowing drive force from the traveling speed change case (69). The mowing part (8) is driven at a proportional speed.

Further, as shown in FIGS. 7, 8 and 9, an engine (21) is provided inside an engine room (81) in a substantially closed rectangular shape formed by a housing (80).
The drive shaft (83) is mounted via the left side opening (82) of the radiator (84), and the engine (21) water cooling radiator (84) is installed rightward on the outside front of the housing (80). The air cooling fan (78) is arranged inside the rear machine. A wind tunnel cover (85) is provided on the right side of the housing (80) and on the front side of the radiator (84).
And a rotary screen (86) for rotating and removing dust on the suction surface is provided in the cooling air passage (87) inside the wind tunnel cover (85), and the screen (86), the air passage (87) and the radiator (84) are provided. External air is taken into the air-cooling fan (78) through the) to cool the radiator (84).

An inlet (8) is provided at the front of the housing (80).
8), an introduction guide plate (89) for allowing exhaust air from the rear half of the rear surface of the air-cooling fan (78) to flow from the introduction port (88) into the engine room (81), and a radiator (8) is provided.
A part of the cooling air of the fan (78) that has cooled down 4) is introduced into the engine room (81), and an outlet (90) is formed on the rear surface of the housing (80) and provided in the threshing unit (4). Dust fan (31) and Karino (32) outside air intake (9
1) An outlet (90) communicates with (92) via an outlet guide plate (93), and warm air in the engine room (81) is discharged from the outlet (90) through each inlet (91) (92). And supplied to the dust sending fan (31) and the Karamin (32), and the warming air from the engine (21) is used as the sorting wind as the swinging sorter (2).
5) and the sorting operation is performed while drying the conveyors (33) and (34). The wet material on the oscillating sorting machine (25) is dried to increase the collection efficiency of the grain and to remove dust. It is dried to facilitate scattering and discharging by the sorting wind to prevent accumulation of dust.

As is apparent from the above description, in the combine where the engine (21) is disposed near the driver's seat (20) where the worker sits, the engine room (the closed space in which the engine (21) is installed) is provided. A radiator (84) is arranged adjacent to (81), the space between the engine (21) and the radiator (84) is closed by a housing (80), and the engine (21) installation place is closed to reduce noise. And the radiator (84) is separated from the engine (21) by separating the radiator (84) from the engine (21).
Cooling efficiency can be easily improved. Also, a part of the cooling air of the radiator (84) is introduced into the engine room (81), which is a closed space in which the engine (21) is provided, and the outside air intake (91) (9), which is a threshing sorting air supply unit, is provided.
2), the engine (21) is cooled using the cooling air of the radiator (84), and hot air can be sent to the threshing / sorting air supply units (91) and (92).
1) Noise reduction, engine (21) cooling and engine (21) exhaust heat utilization, and a radiator (84)
A transmission input shaft (71), which is always a rotating shaft other than the engine (21), is connected to an air-cooling fan (78) for cooling the engine, so that there is no need to connect the air-cooling fan (78) to the output shaft of the engine (21). , The air-cooling fan (78) and the engine (21) can be installed without being restricted to each other.

Further, as shown in FIG. 10, the air-cooling fan (78) is provided at the end of a transmission input shaft (71) for transmitting power to the continuously variable transmission (70) and the charge pump (72).
A PTO pulley (94) that transmits power to the belt, etc.
An HST fan (9) for air-cooling the transmission (70)
5) Attach, and fix the fan cover (96), in which the fan (95) is installed, to the outer surface of the transmission (70) by bolts via stays (97). Further, a hook (99) is provided on a dust-proof net (98) disposed on the intake side of the fan (95), and the hook (99) is engaged with an edge of the fan cover (96). And a dustproof net (98) connected with a patch lock (100).
The dust-proof net (98) is detachably attached to the fan cover (96), and only the net (98) is detached and cleaned without using a tool, so that a troublesome operation of attaching and detaching the fan cover (96) becomes unnecessary. .

FIG. 11 shows a modification of FIG. 8, in which a dust-proof net (101) is fixed in place of the rotary screen (86) of FIG. 8, and the dust-proof fan (102) is rotated by an electric motor (102). 103) to the network (101)
When the threshing clutch (56) in FIG. 6 is turned on and threshing work is started, the motor (102) is turned on for a certain period of time or a key switch (not shown) of the combine is turned off. When the motor (102) is turned on for a certain period of time, dust attached to the outside of the net (101) is removed by a fan (10)
The dust can also be scattered by the wind force of 3).
Further, when the engine (21) is stopped, if dust is prevented by the fan (103), warm air in the engine room (81) is discharged to the outside of the machine by the fan (103), and the engine (21) is quickly turned off at the end of work. Can be cooled.

[0019]

As is apparent from the above embodiments, the present invention has a structure in which an engine (21) is provided inside a combiner in which an engine (21) is disposed below a driver's seat (20) on which an operator sits. A radiator (84) is disposed adjacent to the front side of the substantially sealed housing (80), and the engine (2)
1) and the radiator (84) between the front of the housing (80).
And the cooling air to the radiator (82).
The air-cooling fan (78) exhaust side to be taken in and the inlet (88) on the front of the housing (80 ) are connected by an inlet guide plate (89) .
And threshing section (4), sorting wind forming section (31) (32)
The outside air intake side and the outlet (90) on the rear surface of the housing (80) are connected by a guide plate (93) . It is substantially closed, the outside of the inlet (88) is closed by the radiator (84) and the guide plate (89), noise can be easily reduced, and the cooling efficiency of the radiator (84) can be easily improved. And the outside of the outlet (90) is closed by the outside air intake side of the separation wind forming part (31) (32) and the outlet guide plate (93), and the engine (21)
Both the use of exhaust heat and the soundproofing of the outlet (90) can be easily performed.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of a threshing unit.

FIG. 4 is an explanatory diagram of driving of a combine.

FIG. 5 is an enlarged view of FIG.

FIG. 6 is an explanatory view of a counter case.

FIG. 7 is a side view of the engine unit.

FIG. 8 is a plan view of the same.

FIG. 9 is a front view of the same.

FIG. 10 is a partial view of a traveling speed change case.

FIG. 11 is a plan view showing a modification of FIG. 8;

[Explanation of symbols]

 (4) Threshing unit (20) Driver's seat (21) Engine (31) Dust fan (sorting air forming unit) (32) Karamin (sorting air forming unit) (78) Air cooling fan (80) Housing (84) Radiator (88) Inlet (89) Inlet guide plate (90) Outlet (93) Outlet guide plate

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 41/12 A01D 67/00 B60K 11/04 F01P 5/06 510

Claims (1)

(57) [Claims] 1. A combiner in which an engine (21) is arranged below a driver's seat (20) on which an operator sits, in front of a substantially sealed housing (80) in which the engine (21) is installed.
A radiator (84) is disposed adjacent to the side , and a space between the engine (21) and the radiator (84) is provided in front of the housing (80).
An air-cooling fan (78) for taking in cooling air into a radiator (82) and a casing (80)
The inlet (88) on the front is guided by the guide plate (89)
It is connected, and the sorting wind forming part (31) of the threshing part (4)
(32) outside air intake side and the housing (80) rear of the outlet (9
0) is connected by a guide plate (93).