JPH106796A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sealing property of an engine setting site so as to easily simplifying an engine soundproof structure and to improve workability such as maintenance of a working hydraulic oil pump by providing the hydraulic oil pump on an input shaft from the engine of a counter case. SOLUTION: A working hydraulic oil pump 50 is attached to a counter case 41 serving also as a hydraulic tank, mowing power from the counter case 41 and vehicle speed synchronous mowing power from a traveling transmission case 68 are transmitted to a mowing input 1 shaft 64 as the mowing input shaft of a mowing section and, by a mowing driving force from the counter case 41, the minimum driving speed of the mowing section is maintained. By distributing power from the counter case 41 to a threshing section, the mowing section and the transmission case 68, the installing structure of an engine 21 is simplified and durability is improved, simplification of an engine soundproof structure is facilitated and inconveniences such as work interruption caused by the operation failure of an electromagnetic clutch valve 85 are prevented.

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, the work hydraulic pump was always driven by the output of the engine by attaching the work hydraulic pump to the engine. However, the hermetic seal of the engine installation place was provided by the hydraulic piping of the work hydraulic pump. And the engine soundproof structure cannot be easily simplified, and there are other structural and handling problems such as maintenance of the working hydraulic pump by opening the engine installation location. When a work clutch operated by an electromagnetic clutch valve is provided in the counter case, the work clutch can be easily downsized and the belt transmission structure can be simplified.However, if the electromagnetic clutch valve or the operation system becomes malfunctioning, repairs are required. There is a handling problem such as the need to stop the harvesting work until it is completed.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a combine for inputting an engine output to a counter case and outputting a work driving force from the counter case, wherein a work hydraulic pump is provided on an input shaft from the engine of the counter case. With it, it is possible to simplify the engine soundproofing structure by improving the tightness of the engine installation location,
It is possible to easily improve workability such as maintenance of the work hydraulic pump.

In addition, an electromagnetic clutch valve for activating a work clutch provided in a counter case and a bypass valve are provided. Compared with the conventional belt tension clutch structure, the work clutch can be downsized and the belt transmission structure can be simplified. In addition, the harvesting operation can be continued by operating the bypass valve instead of the electromagnetic clutch valve, and the trouble that the operation is stopped due to malfunction of the electromagnetic clutch valve or the like can be eliminated.

Further, a holding member for forcibly supporting the spool of the electromagnetic clutch valve for operating the work clutch provided on the counter case at the operation position is provided. Compared with the conventional belt tension clutch structure, the work clutch has a smaller size. In addition to simplifying the operation and simplifying the belt transmission structure, the harvesting operation can be continued by the spool forcible operation of the holding member, and the trouble that the operation is stopped due to malfunction of the electromagnetic clutch valve or the like can be eliminated. .

[0006]

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) 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), and is turned on by the hydraulic cylinder (53). Threshing clutch (56) and gear (5
4) The work shaft (51) is selected via (55) by the output shaft (4).
4) and the bevel gear (5) is connected to the sorting output shaft (44).
The threshing output shaft (43) is connected via the threshing clutch (56), and the pulleys (47) and (48) are driven via the threshing clutch (56) to transmit power to the threshing unit (4). I have.

A cutting clutch (59) and a high-speed cutting clutch (6) which are turned on by a hydraulic cylinder (58).
1), the working shaft (51) is connected to the cutting output shaft (45) through the clutches (59), (60) and (61), and the cutting output shaft (45) is connected to the cutting pulley (6).
2) is supported. An input pulley (64) is provided on a single cutting input shaft (63) for driving each part of the cutting unit (8), and the feed chain (5) is connected via the single shaft (63).
, And a cutting two shaft (66) is connected to the single shaft (63) via a manual clutch (65) to transmit power to each part of the cutting unit (8).

Furthermore, a traveling speed change case (68) for supporting a traveling pulley (67) on the traveling output shaft (46) and driving a pair of left and right traveling crawlers (2) (2) is provided. A hydraulic continuously variable transmission (69) having a built-in hydraulic motor is attached to a traveling transmission case (68), and a transmission (69) is attached to a traveling pulley (67) of a traveling output shaft (46).
Of the speed change input shaft (70) of the engine (2).
1) The transmission input shaft (70) is constantly rotated by power, and the left and right traveling crawlers (2) and (2) are driven by the transmission output of the transmission (69) via the transmission gears in the transmission case. Further, a charge pump (71) is mounted on the speed change input shaft (70), and the pump (71) is driven by the input shaft (70), and the hydraulic oil in the counter case (41) which also serves as an oil tank is charged with the charge pump (71). 71) to supply to the transmission (69), and the charge pump (7)
Since the operation hydraulic pump (50) is always driven,
The working oil pressure can be supplied by using a charge pump (71) instead of.

A vehicle speed tuning output shaft (72) is provided in the traveling speed change case (68), and the output shaft (72) is increased / decreased and rotated in proportion to the forward traveling speed of the traveling crawler (2). (72) A vehicle speed tuning pulley (74) pivotally supported via a one-way clutch (73) and an input pulley (64) of the cutting input single shaft (63) are connected to a belt via a cutting tension clutch (75). Connect. Further, the cutting pulley (62) is provided with a vehicle speed tuning pulley (74).
When the tension clutch (75) is engaged and the rotation speed of the vehicle speed tuning output shaft (72) is lower than the rotation speed of the cutting output shaft (45) in a low speed running state, the cutting output shaft (4)
While the one shaft (63) is driven by 5), the rotation speed of the vehicle speed tuning output shaft (72) is increased in the high-speed running state by the cutting output shaft (4).
5) When the rotation speed is higher than the rotation speed, one shaft (63) is driven by the vehicle speed tuning output shaft (72), and the reaper (8) and the feed chain (5) are driven at a speed proportional to the traveling speed.

In FIG. 5, reference numeral (76) denotes an air cooling fan for supplying cooling air to the engine (21);
7) is a compressor for cooling the operation cabin (18), which is driven by connecting an air cooling fan (76) and a compressor (77) to the speed change input shaft (70). In addition, pulleys (79) and (80) for belt connection via an auger clutch (78) and a bevel gear (81) are provided to take out the output of the engine (21), and to auger the transverse feed auger (82) and the longitudinal feed auger ( 83), and outputs the engine (21) via each clutch (84) via a clutch (84) which is disengaged when the grain tank (15) is horizontally rotated around the axis of the vertical auger (83). (17) and transfer the grains from the grain tank (15) to each auger (82) (8
3) According to (17), it is configured to be carried out to a truck bed or the like.

Further, as shown in FIG. 6, an electromagnetic threshing clutch valve (85) for operating a hydraulic cylinder (53) of the threshing clutch (56), and the reaping clutch (5).
9) An electromagnetic mowing clutch valve (86) for operating the hydraulic cylinder (58) is attached to the counter case (41), and the charge pump (71) is connected to the respective valves (85) (85) via a line filter (87). 86) is hydraulically connected, the clutches (56) and (59) are turned on and off by the pressure oil of the charge pump (71), and the discharge auger (17) is swung up and down.
8), a horizontal control valve (89) for correcting the left-right inclination of the machine base (3), and a mowing lift valve (90) for operating a hydraulic cylinder (11) for raising and lowering the mowing part (8).
Is hydraulically connected to the working hydraulic pump (50), and the working oil in the counter case (41) is supplied to the working hydraulic pump (5).
0), the valves (88), (89), and (90) are supplied. Note that reference numeral (91) in FIG.
Is an oil cooler. As described above, the power is distributed from the counter case (41) to the threshing unit (4), the mowing unit (8), and the traveling speed change case (68), and the engine (21) is moved in one direction by the conventional belt lateral pulling load. It is possible to eliminate the drawback of pulling, to simplify the installation structure of the engine (21) and to improve the durability, and to improve the drive function of the cutting unit (8) and to omit the hydraulic piping. The work hydraulic pump (50) is mounted on the counter case (41), which also serves as
There is no need to provide a hydraulic pump in 1), and a hydraulic pump (5
0) can be omitted, and the mowing drive force from the counter case (41) and the traveling speed change case (6) can be omitted.
The driving force of the vehicle speed synchronized harvesting from 8) is transmitted to a single cutting input shaft (64), which is a cutting input shaft of the cutting unit (8), and the cutting unit is driven by the cutting driving force from the counter case (41). While maintaining the minimum driving speed of (8), the cutting unit (8) is driven at a speed proportional to the vehicle speed by the vehicle speed synchronized cutting driving force from the traveling speed change case (68).

As apparent from the above, the engine (2
1) In a combiner in which the output is input to the counter case (41) and the respective working driving forces of threshing, cutting, and running are output from the counter case (41), the input shaft (from the engine (21) of the counter case (41)) 49) A work hydraulic pump (50) is provided on the upper surface of the engine (21) to improve the airtightness of a place where the engine (21) is installed, thereby simplifying the soundproof structure of the engine (21), and improving workability such as maintenance of the work hydraulic pump (50). It is configured so as to be able to improve.

Further, as shown in FIGS. 7, 8 and 9, the engine (21) is provided inside the engine chamber (93) formed by the casing (92) in a substantially closed state.
The drive shaft (42) is inserted through the left side of (2), and the engine (21) water cooling radiator (94) is installed to the right outside the housing (92). The air cooling fan (76) is provided. A wind tunnel cover (95) is attached to the right side of the casing (92) and the front side of the radiator (94), and the rotary screen (9) is rotated to remove dust on the suction surface.
6) is provided in the cooling air passage (97) inside the wind tunnel cover (95), and external air is taken into the air cooling fan (76) through the screen (96), the air passage (97) and the radiator (94), and the radiator Cool (94).

Further, an inlet (9) is provided on the front surface of the housing (92).
8), an introduction guide plate (99) for allowing exhaust air from the rear half of the rear surface of the air cooling fan (76) to flow from the introduction port (98) into the engine room (93), and a radiator (9) is provided.
A part of the cooling air of the fan (76) that has cooled down 4) is introduced into the engine room (93), and an outlet (100) is formed in the rear surface of the housing (92), and is provided in the threshing unit (4). An outlet (100) communicates with an outside air inlet (101) of the dust sending fan (31) through an outlet guide plate (102),
The warm air in the engine room (93) is supplied from the outlet (100) to the dust sending fan (31) through the intake (101), and the warm air from the engine (21) is used as the screening wind to oscillate the screen (25). ), Etc., so that the sorting operation is performed while drying the wet material on the oscillating sorter (25) to increase the collection efficiency of the grains, or to dry the dust to reduce the scattering and discharge by the sorting wind. This facilitates the accumulation of dust.

As is clear from the above, the engine (21) is disposed near the driver's seat (20) where the operator sits, and the engine room (93) is a closed space in which the engine (21) is installed. A radiator (94) is arranged adjacent to the radiator, and a space between the engine (21) and the radiator (94) is closed by a housing (92), so that a place where the engine (21) is installed is closed to reduce noise. Can be easily performed, and the radiator (9)
By separating 4), the cooling efficiency of the radiator (94) can be easily improved. The engine room (9) is a closed space in which the engine (21) is installed.
3) let a part of the cooling air of the radiator (94) be introduced,
It is led to an outside air intake (101), which is a threshing sorting wind supply unit, cools the engine (21) using cooling air from the radiator (94), and threshing and sorting wind supply unit (10).
Hot air can be supplied to the air cooling fan (76) for cooling the radiator (94) while reducing the noise of the engine (21), cooling the engine (21) and utilizing the exhaust heat of the engine (21). ), A speed change input shaft (70), which is a constantly rotating shaft, is connected to the air-cooling fan (76).
Does not need to be connected to the output shaft of the engine (21), and the air-cooling fan (76) and the engine (21) can be installed without being restricted to each other.

Further, as shown in FIG. 10, a bypass valve (104) switched by a manual lever (103).
In a normal working state in which the hydraulic cylinder (53) of the threshing clutch (56) is operated by operating the electromagnetic threshing clutch valve (85), the valves (85) (10
4) The pressure oil of the charge pump (71) is supplied to a hydraulic cylinder (53) via a hydraulic pump (53), and a threshing clutch (56) is turned on to transmit a driving force to a threshing unit (4) and the electromagnetic threshing. Clutch valve (85) or the valve (8
When the operation system of 5) is malfunctioning, the bypass valve (1) is operated by operating the manual lever (103).
04), the pressure oil of the charge pump (71) is supplied to the hydraulic cylinder (53) through the bypass valve (104), and the threshing clutch (56) is turned on to drive the threshing unit (4). It is configured to be. in this way,
An electromagnetic threshing clutch valve (85), which is an electromagnetic clutch valve for operating a threshing clutch (56), which is a work clutch provided in the counter case (41), and a bypass valve (104) are provided, so that the threshing clutch (56) can be downsized. In addition to simplifying the belt transmission structure as compared with the conventional belt tension clutch structure, the harvesting operation can be continued by operating the bypass valve (104) instead of the electromagnetic threshing clutch valve (85), and the electromagnetic threshing can be performed. It is configured to eliminate a problem that the operation is stopped due to a malfunction of the clutch valve (85) or the like.

Further, as shown in FIGS. 10 and 11, the spool (105) of the electromagnetic threshing clutch valve (85)
The counter case (41) is provided with a bolt (106).
6), when the solenoid of the electromagnetic threshing clutch valve (85) or the operating system of the valve (85) is malfunctioning, the bolt (106) is operated to remove the bolt (106) from the spool ( 105), the spool (105) is forcibly pushed in to switch the electromagnetic threshing clutch valve (85) to the clutch engagement operation position, and the charge pump (7) is switched through the valve (85).
The pressure oil of 1) is supplied to the hydraulic cylinder (53), and the threshing clutch (56) is engaged to drive the threshing unit (4). Thus, the counter case (4)
Threshing clutch (56), which is the work clutch provided in 1)
And a bolt (106) as a holding member for forcibly supporting the spool (105) of the electromagnetic threshing clutch valve (85), which is an electromagnetic clutch valve for actuating the spool, in an operation position, and providing a bolt as compared with a conventional belt tension clutch structure. It is possible to easily reduce the size of the threshing clutch (56) and simplify the belt transmission structure, and to continue the harvesting operation by forcibly operating the spool (105) of the bolt (106). ), Etc., so that the work is not stopped due to an operation failure.

[0021]

As is apparent from the above embodiments, the present invention relates to a combiner in which the output of the engine (21) is input to the counter case (41) and the working drive force is output from the counter case (41). 41)
The work hydraulic pump (50) is provided on the input shaft (49) from the engine (21), and the sealing performance at the place where the engine (21) is installed is improved to simplify the engine (21) soundproof structure. And workability such as maintenance of the working hydraulic pump (50) can be easily improved.

An electromagnetic clutch valve (85) for operating a work clutch (56) provided in the counter case (41) and a bypass valve (104) are provided. The power transmission structure can be simplified and the like compared to the conventional belt tension clutch structure, and the harvesting operation can be continued by operating the bypass valve (104) instead of the electromagnetic clutch valve (85). Valve (8
It is possible to eliminate the problem that the operation is stopped due to the operation failure such as 5).

Further, a holding member (106) for forcibly supporting the spool (105) of the electromagnetic clutch valve (85) in the operating position for operating the work clutch (56) provided in the counter case (41) is provided. As compared with the conventional belt tension clutch structure, the size of the work clutch (56) can be reduced and the belt transmission structure can be simplified, and the spool (105) is forcibly operated by the holding member (106). The operation can be continued, and the problem that the operation is stopped due to a malfunction of the electromagnetic clutch valve (85) or the like can be eliminated.

[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 hydraulic circuit diagram.

FIG. 11 is a partially enlarged view of a counter case.

[Explanation of symbols]

(21) Engine (41) Counter case (49) Input shaft (50) Work hydraulic pump (56) Threshing clutch (work clutch) (85) Electromagnetic threshing clutch valve (electromagnetic clutch valve) (104) Bypass valve (105) Spool (106) Bolt (holding member)

Claims (3)

[Claims] 1. A combine for inputting an engine output to a counter case and outputting a work driving force from the counter case, wherein a work hydraulic pump is provided on an input shaft from the engine of the counter case. 2. The combine according to claim 1, wherein an electromagnetic clutch valve for operating a work clutch provided on the counter case and a bypass valve are provided. 3. The combine according to claim 1, further comprising a holding member for forcibly supporting a spool of an electromagnetic clutch valve for operating a work clutch provided on the counter case at an operation position.