JPH09248043A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine in which structure is simplified, a belt tension clutch is unnecessitated, vibrations and noises can easily be prevented and maintainability is improved by providing a cutting low-speed/high-speed clutch inside a counter case. SOLUTION: The motive force of an engine 21 is inputted to a counter case 41, the driving force of the engine 21 is distributed to a threshing part, cutting part and traveling change gear case 69, and cutting low-speed and high-speed clutches 60 and 61 are provided inside the counter case 41. In this case, a threshing clutch 56 is provided inside the counter case 41, and the cutting low- speed and high-speed clutches 60 and 61 are arranged on the motive force transmission downstream side of the threshing clutch 56. Further, it is preferable to transmit cutting driving force from the counter case 41 and car speed synchronized cutting driving force from the traveling change gear case 69 to a cutting input shaft 64 of the cutting part.

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, since the power of the engine has been distributed to the threshing section side (rear) and the reaping section side (front) by belt transmission, maintenance such as belt tension adjustment is required. Since a belt for connecting the traveling speed change case is also required, it is not possible to easily simplify the belt drive structure, and the threshing drive system and the cutting drive system are separately configured, so threshing drive is not performed. Also, there is a problem that the mowing drive is performed.

[0003]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the power of the engine is input to the counter case, the engine driving force is distributed to the threshing section, the mowing section, and the traveling speed changing case, and the mowing low speed and high speed clutches are counted. The one installed inside the case, which can simplify the maintenance work such as belt adjustment without the need for the conventional belt tension clutch, and also simplifies the structure of the engine and vibration and noise. Is.

Further, a threshing clutch is provided in the counter case, and a low-speed and high-speed mowing clutch is provided on the lower side of power transmission of the threshing clutch. The mowing section is driven only when the threshing section is being driven. Therefore, it is possible to eliminate the problem that the cutting unit is driven with the threshing unit stopped.

Further, the cutting drive force from the counter case and the vehicle speed synchronized cutting drive force from the traveling speed change case are transmitted to the cutting input shaft of the cutting unit.
The cutting drive force from the counter case maintains the minimum drive speed of the cutting unit, and the cutting speed can be driven at a speed proportional to the vehicle speed by the vehicle speed synchronized cutting drive force from the traveling speed change case.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below 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) is mounted in the longitudinal direction of the body, 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 FIGS. 4, 5 and 6, 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). 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 working 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).

A cutting low-speed clutch (60) and a cutting high-speed clutch (61), which are turned on by 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 pivotally 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. The hydraulic continuously variable transmission (70) having a built-in motor is attached to the traveling transmission case (69), and the transmission (70) is attached to the traveling pulley (68) of the 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), and the driving force of the engine (21) is distributed 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 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).

Further, 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 a combine where an engine (21) is disposed near a driver's seat (20) where an operator sits, an engine room (closed space) in which the engine (21) 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 wind supply unit.
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.

[0019]

As is apparent from the above embodiments, the present invention provides the power of the engine (21) to the counter case (41).
Input to the threshing section (4), the mowing section (8) and the traveling speed change case (69), and the driving speed of the engine (21) is distributed to the threshing low speed and high speed clutches (60) (61). ) Is installed inside, it is possible to simplify the maintenance work such as belt adjustment without the need for the conventional belt tension clutch, and to simplify the structure around the engine (21) and to reduce vibration and noise. This can be easily achieved.

Further, the threshing clutch (56) is installed inside the counter case (41), and the low speed and high speed clutches (60) (6) are provided on the lower side of the power transmission of the threshing clutch (56).
1) is provided, the reaper (8) can be driven only when the threshing unit (4) is being driven, and the reaper (8) is driven with the threshing unit (4) stopped. It is possible to eliminate the inconvenience caused.

Further, the cutting drive force from the counter case (41) and the vehicle speed synchronized cutting drive force from the traveling transmission case (69) are transmitted to the cutting input shaft (64) of the cutting unit 8). In the counter case (41)
While keeping the minimum drive speed of the mowing part (8) by the mowing drive force from the vehicle, the mowing part (8) can be driven at a speed proportional to the vehicle speed by the vehicle speed synchronized mowing driving force from the traveling speed change case (69). Is.

[Brief description of 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 the same.

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.

[Explanation of symbols]

 (4) Threshing unit (8) Mowing unit (21) Engine (41) Counter case (56) Threshing clutch (60) Mowing low speed clutch (61) Mowing high speed clutch (64) Mowing input single shaft (Mowing input shaft) (69) ) Travel gearbox

Claims (3)

[Claims] 1. The engine power is input to a counter case, the engine driving force is distributed to the threshing section, the mowing section, and the traveling transmission case, and the mowing low speed and high speed clutches are internally provided in the counter case. To combine. 2. The combine harvester according to claim 1, wherein the threshing clutch is provided in the counter case, and the low-speed mowing and high-speed clutches are disposed on the lower side of the power transmission of the threshing clutch. 3. A cutting drive force from the counter case,
The combine harvester according to claim 1, wherein the vehicle speed-synchronized mowing drive force from the traveling speed change case is transmitted to the mowing input shaft of the mowing unit.