JP3188961B2 - Combine engine equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine device for driving various parts such as a traveling part of a combine and a cutting and threshing part.

[0002]

2. Description of the Related Art In a conventional combine, an engine radiator is provided integrally with a radial fan for cooling a radiator at a position close to the engine at one of the left and right sides of the engine located outside the fuselage. .

[0003]

However, in the case of such an engine structure, the opening of the cooling air of the radiator cannot be closed, so that the opening ratio of the engine room becomes high, and the engine and the fan are not opened. The driving noise is also noisy, and there is a drawback that it is not suitable for the current situation where a low noise type combine is desired. Further, when a hydraulic continuously variable transmission (HST) for traveling speed change is used, the drive system between the hydraulic pump and the engine becomes complicated and the pump noise is noisy because it is usually integrated with the transmission case. .

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a substantially closed engine room in which an engine is provided, disposed on the right side of the fuselage, a radiator in front of the engine room, and a radiator between the engine room and the radiator. A hydraulic pump and a hydraulic motor are provided separately, and a hydraulic pump is provided on the left or right outside of the engine in the engine room. By mounting the working device to the output shaft from the engine that protrudes to the left outside of the engine room while installing, the separate installation of a drive system such as a belt and a pulley for driving the transmission mechanism is eliminated. In addition to the compactness of the configuration, the space can be used effectively, and the hydraulic pump is integrated with the engine. Pump sound disposed in the engine room is also reduced, but to allow further noise reduction of the combine.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory plan view of an engine unit, FIG. 2 is an overall side view of a combine, and FIG. 3 is a plan view of the combine unit, where (1) is a track frame on which a traveling crawler (2) is mounted,
(3) a machine frame erected on the track frame (1);
(4) a threshing unit, which is a working device in which a feed chain (5) is stretched to the left and a handling cylinder (6) and a processing cylinder (7) are built in, (8) is a cutting blade (9) and a grain culm Transport mechanism (10)
(11) is a main frame (1)
2) a hydraulic cylinder for raising and lowering the reaping unit (8) via
(13) is a straw processing unit that faces the end of the straw chain (14), and (15) is a crushing cylinder (1) for transferring the grains from the threshing unit (4).
6) a grain tank carried in through (6); (17) a discharge auger for carrying out the grains in the tank (15) out of the machine;
Reference numeral 8) denotes an operation unit including an operation operation unit (19) and a driver's seat (20), and reference numeral (21) denotes an engine provided below the driver's seat (20), which is configured to continuously cut husks and thresh. are doing.

As shown in FIGS. 4 to 6, the engine (21) is separated from an engine radiator (22) for cooling the combustion chamber of the engine (21) and operates the radiator (22). It is arranged below the operation column (23) of the operation section (19), and the driver's seat (20)
Column of substantially closed box shape (24) that supports
An engine (21) is disposed in the seat column (2).
A sirocco fan (26) that blows air to the radiator (22) to radiate and cool the radiator (22) is disposed below the step (25) between the step (4) and the operation column (23). 21) and the noise of the radiator cooling fan is reduced.

On the right side of the seat column (24), there is provided a right side column (27) having a hollow inside, and an outside air inlet (28) opened on the right outer wall of the column (27). ) Through a discharge port (29) formed at the lower front end of the left inner wall of the column (27) through a right suction port (31a) formed at the right outer surface of the fan casing (30) of the sirocco fan (26). The sirocco fan (26) is configured to send air to the radiator (22) on the front side to radiate and cool the radiator (22). 26) is formed in the air suction air passage (32).

Further, a left suction port (31b) similar to the right side is opened on the left outer side of the fan casing (30).
The fan casing (3) covers the suction port (31b).
The air inlet (33a) of the air passage guide (33) fixed to the left outer side of (0) is connected to the engine enclosed room (34) inside the seat column (24) (to make the entire engine (21) substantially sealed). The engine room to be covered is referred to as the following.) The air in the engine enclosure room (34) is passed through the ventilation circuit (35) formed in the air passage guide (33) and the sirocco fan (26). The sirocco fan (26) is configured to prevent clogging of a dustproof net such as a radiator (22) by avoiding suction of dust and the like generated at a cutting unit (8) at a left position. ing.

Still further, the sirocco fan (26)
An air path casing (36) for guiding cooling air from the radiator (22) to the radiator (22) is integrally provided between the fan casing (30) and the radiator (22), and the radiator (22) and each casing (30) are provided. The three members (36) are integrally supported on the lower part of the step (25) via a vibration isolating rubber (37) so as to prevent these vibrations from being transmitted to the step (25). Make up.

An oil cooler (39) of a hydraulic stepless speed change mechanism (HST) (38) for shifting the running speed is disposed at a position in front of the radiator (22), and a fan is provided for the radiator (22). The casing (30) and the oil cooler (39) are displaced so that their right ends in plan view are aligned, and in the displaced extra space on the left side of the fan casing (30),
The air path guide (33) and the like are arranged.

Further, the enclosure room (34)
Left and right ventilation intakes (40) (4)
1) the engine (2) of the intake port (33a) in plan view.
1), the left intake port (40) is located at the rear upper position of the left side wall of the room (34), and the right intake port (41) is located at the rear lower position of the right wall of the room (34). A state where air is introduced through the left intake port (40) and outside air from the air passage (32) that is introduced through the right intake port (41) are distributed throughout the engine (21). Thus, the engine (21) and the lowering of the ambient temperature are promoted.

The transmission mechanism (HST) (3)
8) and the hydraulic motor (4)
3) a transmission case (46) having an axle case (45) for supporting a driving sprocket (44) of the traveling crawler (2), which is formed in a separately placed structure that is arranged separately and independently, The hydraulic motor (43) is integrally mounted, and the hydraulic pump (42) is integrally mounted on the left outside of the engine (21) on the flywheel (47) side of the engine (21) in the enclosed room (34). A hydraulic hose (48) connects the pump (42) and the motor (43) with pipes, and supplies hydraulic pressure when the pump (42) is driven by the engine (21) to the motor (43). The driving force is input to the case (46).

Further, a fan shaft (50) of the sirocco fan (26) is interlocked to a right output shaft (49a) of the engine (21).
2) The output shaft (49a) is operatively connected to an intermediate transmission shaft (51) disposed in the vehicle via a propeller shaft (52), and a pulley (32) is connected to the fan shaft (50) in an air passage (32). 53) (54) and the transmission shaft (51) are interlocked and linked via the belt (55) to form an air passage (3) on the right side of the fuselage.
The sirocco fan (2)
6).

The right side column (27) in which the pulleys (53) and (54) and the belt (55) are provided is provided with a right outer plate (27a) detachably provided on a column body (27b) to provide a fan drive system. Maintenance and inspection of
The column body (27b) is provided detachably from the seat column (24) to facilitate maintenance and inspection of the engine (21) and the sirocco fan (26).

An output shaft is provided to a drive shaft (49b) of a hydraulic pump (42) directly connected to the left outside of the engine (21) via a propeller shaft (56) which is a universal joint shaft in the left and right direction. The counter shaft (57) is interlockingly connected to the counter shaft (57).
8) supports the counter shaft (57), and the input pulley (61) of the threshing input shaft (60) is connected to the belt (6) by the output pulley (59) fixed to the left end of the counter shaft (57).
2) Threshing clutch which is a tension pulley (63)
The rotation of the counter shaft (57) outside the seat column (24) forming the engine enclosed room (34) is linked with the threshing unit (4) and the grain tank (1).
By transmitting the belt (62) to 5), it is possible to select an appropriate vibration-proof rubber for mounting the engine (21) without being affected by the tension of the belt (62).
The opening ratio of the insertion hole (64) of the shaft (56) formed on the left outer wall of the seat column (24) is suppressed to a small value, and the sealing degree of the enclosed room (34) is improved to promote low noise. It is configured as follows.

The traveling clutch is provided, for example, in a transmission case (46) so as to operate inside the transmission case (46).

In this embodiment, the radiator (2) having a large cooling air opening is constructed as described above.
By arranging 2) away from the position where the engine (21) is arranged, it is possible to make the engine enclosed room (34) accommodating the engine (21) to be the most enclosed and to reduce engine noise. A sirocco fan (26) is provided for the radiator cooling fan for blowing and cooling the radiator (22).
By using the sirocco fan (26), the radiator (22) can be cooled by the air passage guide (33) when the radiator (22) is cooled. Ventilation in the closed room (34) is simultaneously performed well, and the performance of the engine (21) can be stably maintained for a long period of time.

In this case, the hydraulic pump (42) of the speed change mechanism (38) is disposed integrally with the engine (21) in the enclosed room (34), so that noise can be reduced. A drive system such as a pulley and a belt for driving the hydraulic pump (42) is not required, and the pump (42) and the motor (43) are arranged close to each other to make the configuration compact, thereby enabling effective use of space and improving layout. be able to.

The drive system such as the propeller shaft (56) and the counter shaft (58) for transmitting the output from the engine (21) to the threshing unit (4) does not drive the transmission mechanism (38) or the like. (4) Since only the drive is required, the shaft diameter and size can be made small and compact, and a threshing drive belt (62) and a threshing clutch (63) are provided on the left outside of the fuselage. Thereby, maintenance in these drive systems can be improved.

FIGS. 7 and 8 show that the hydraulic pump (42) is provided on the right outside of the engine (21),
The drive shaft (49a) of the hydraulic pump (42) directly connected to the transmission shaft (52) is operatively connected to the transmission shaft (51) via a propeller shaft (52), and the left output shaft via a flywheel (47) of the engine (21). (49b) is linked to the counter shaft (57) via a propeller shaft (52), and the shaft (49a) output from the hydraulic pump (42).
The sirocco fan (26) is driven by extracting power from the propeller shaft (52).

[0021]

As is apparent from the above embodiments, the present invention provides a substantially closed engine room (34) in which an engine (21) is installed, on the right side of the fuselage, and the engine room (34). A hydraulic pump (42) and a hydraulic motor are provided in a combine in which a radiator (22) is provided in front of the radiator and a fan (26) for radiator air cooling is disposed between the engine room (34) and the radiator (22). (43) A hydraulic pump (42) is separately mounted on the left or right outside of the engine (21) in the engine room (34). (34) Since the working device (4) is linked to the output shaft (57) from the engine (21) projecting to the left outside, the transmission mechanism (38) is driven. By eliminating the need for separate installation of the driving system such as a belt or pulleys needed, along with enabling effective use of space is compactified configuration, the engine (2
The hydraulic pump (42) is integrated with the engine room (3)
By arranging it in 4), a remarkable effect is achieved such that the pump noise can be reduced and the noise of the combine can be further reduced.

[Brief description of the drawings]

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

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

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

FIG. 4 is an explanatory perspective view of an engine unit.

FIG. 5 is an explanatory side view of the engine unit.

FIG. 6 is an explanatory front view of an engine unit.

FIG. 7 is an explanatory plan view of an engine unit in another embodiment.

FIG. 8 is an explanatory front view of an engine unit according to another embodiment.

[Explanation of symbols]

 (21) Engine (22) Radiator (26) Fan (34) Enclosed room (engine room) (38) Hydraulic continuously variable transmission mechanism (HST) (42) Hydraulic pump (43) Hydraulic motor (57) Counter shaft (output) axis)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 52-150126 (JP, U) Japanese Utility Model Sho 55-94736 (JP, U) Japanese Utility Model Sho 51-2533 (JP, U) Japanese Utility Model Sho 54- 10833 (JP, U) Actually open sho 59-23471 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 41/12 B60K 17/04 F01P 5/06 510

Claims (1)

(57) [Claims] 1. A substantially closed engine room in which an engine is installed is disposed on the right side of the fuselage, a radiator is provided in front of the engine room, and a radiator fan cooling fan is disposed between the engine room and the radiator. In the combine, a hydraulic pump and a hydraulic motor are separately provided, and a hydraulic continuously variable transmission mechanism for traveling speed change is provided. The hydraulic pump is integrally mounted on the left or right side of the engine in the engine room, and the left side of the engine room is provided. An engine device for a combine, wherein the working device is drivingly connected to an output shaft from an engine protruding from the engine.