JPH0629U - Combine engine equipment - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] It is possible to reduce the noise of combine engines. [Structure] Between the engine 21 and the engine radiator 22 in front of the engine 21, a fan 26 for cooling the air blown by the radiator 22 is provided.
In addition, the oil cooler 47 is arranged on the front side of the radiator 22, and the oil cooler 47 and the fan 26 are offset to the left and right with respect to the radiator 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an engine device that drives various parts such as a traveling part of a combine and a threshing part.

[0002]

[Prior art]

 In the existing combine, the engine radiator is integrally installed on the left and right sides of the engine, which is located outside the fuselage, close to the engine, and the cooling fan that blows and cools the radiator is also radial type. Fans are commonly used.

[0003]

[Problems to be solved by the device]

 However, in the case of such an engine structure, since the cooling air opening of the radiator cannot be closed, the opening ratio of the engine room that houses the engine is also high, and the driving noise of the engine and fan is noisy. However, there is a drawback that it is not suitable for the current situation where a low noise type combine is desired.

[0004]

[Means for Solving the Problems]

 Therefore, according to the present invention, a fan for cooling the blower of the radiator is installed between the engine and the engine radiator in front of the engine, and an oil cooler is provided on the front side of the radiator. By displacing it to one side, it is possible to separate the engine from the radiator and to create a low noise structure by increasing the airtightness of the engine room. In this case, it is necessary to run in the surplus space on one side of the fan. The transmission case and hydraulic continuously variable transmission mechanism can be compactly arranged, and these piping systems can be compactly installed in the surplus space on one side of the fan and oil cooler, and the cooling efficiency of the oil cooler can be improved. It can be improved.

[0005]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of the engine section, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine. ) Is a machine frame installed on the track frame (1), (4) is a threshing section in which a feed chain (5) is stretched on the left side and a handling cylinder (6) and a processing cylinder (7) are built in, (8) ) Is a mowing part equipped with a cutting blade (9) and a grain culm transport mechanism (10), (11) is a hydraulic cylinder for moving the mowing part (8) up and down via the main frame (12), and (13) is The straw processing unit that faces the end of the straw chain (14), (15) a grain tank that carries the grain from the threshing unit (4) through a lifting cylinder (16), and (17) the tank ( A discharge auger for discharging the grain of 15) to the outside of the machine, (18) a driving operation part (19) and a driver's seat (20) Operation unit to obtain, are configured to thresh I reaper (21) the driver's seat (20) an engine provided below, continuously culms.

As shown in FIGS. 4 to 9, the engine (21) is separated from the engine radiator (22) for cooling the combustion chamber of the engine (21), and the radiator (22) is separated from the engine radiator (22). The engine is installed in a seat column (24), which is a seat column case of a substantially closed box shape, which is arranged below the operation column (23) of the operation unit (19) and supports the driver seat (20) on the upper surface. (21) is arranged, and sirocco which blows air to the radiator (22) at the lower part of the step (25) between the seat column (24) and the operation column (23) to radiatively cool the radiator (22). A fan (26) is provided to reduce noise of the engine (21) and the radiator cooling fan.

A right side column (27), which is a side plate portion that forms a hollow inside, is disposed on the right side of the seat column (24) and is installed on the right outer wall of the column (27). The air taken in from the outside air intake port (28) is opened on the right outer side of the fan casing (30) of the sirocco fan (26) from the exhaust port (29) opened at the lower front end of the left inner wall of the column (27). The column (27) is configured so that it is sent to the fan (26) through the suction port (31a) to blow air to the radiator (22) on the front side to radiate and cool the radiator (22). Is formed in the air suction air passage (32) of the sirocco fan (26).

Further, a left suction port (31b) similar to the right side is formed on the left outer surface of the fan casing (30), and two flanges (33) fixed to the left outer surface of the casing (30) are provided. An elastic hose (35), which is a relatively large-diameter air duct, is connected to the suction port (34) so that the middle part of the hose (35) is along the left outer wall of the seat column (24). The hose (35) is largely bypassed, and is inserted into the air passage (32) of the side column (27) from the upper part of the rear end of the left outer wall of the column (24) in the right lateral direction of the column (24). The suction port (35a) is provided so that both of the left and right suction ports (31a) (31b) of the sirocco fan (26) take air from the outside air suction port (28) of the side column (27). By putting in, the ground clearance is also low The sirocco fan (26) is configured to prevent clogging of the dust-proof net such as the radiator (22) at the installation position that is easily affected by dust from the cutting section (8).

Furthermore, an air passage casing (36) for guiding the cooling air from the sirocco fan (26) to the radiator (22) is integrally provided between the fan casing (30) and the radiator (22). Then, the air outlet (31c) of the fan casing (30) is integrally connected to the rear portion of the air passage casing (36) via the bolt (37), and the left and right sides of the air passage casing (36) and the radiator (22) are connected. Pivot plates (38) and (39), which are respectively fixed to the side portions, are integrally connected via bolts (40). The upper and lower support plates (41) (42) fixed to the upper and lower ends of the air passage casing (36) are fixed to the left and right side surfaces of the operation column (23) and the front end side of the machine base (3). The radiators (22) and the casings (30) (36) are integrated under the step (25) by connecting and supporting the members (43) and (44) through the vibration-proof rubber (45). A vibration-proof support is provided to prevent these vibrations from being transmitted to the step (25).

Further, an oil cooler (47) of a hydraulic stepless speed change mechanism (HST) (46) for shifting the traveling speed is arranged in front of the radiator (22) so that the radiator (22) is The fan casing (30) and the oil cooler (47) are eccentrically aligned with their right ends in plan view, and are displaced to the surplus space on the left side of the displaced fan casing (30) and to the fan shaft (26a) of the sirocco fan (26). A drive system such as a fixed input pulley (48) and the transmission mechanism (46) integrally mounted on the transmission case (49) are arranged, and a left side extra space for the fan casing (30) and the oil cooler (47). Between the engine (21) and the radiator (22) in parallel with each other, between the two water hoses (50) and the speed change mechanism (46) and the oil cooler (47). The hydraulic hose (51) to be connected is used in a hose path to enable these compact arrangements.

Further, the radiator (22) is provided in a forwardly inclined posture in which the radiator (22) is inclined forward toward the upper end, and the radiator (22) for connecting the water hose (50) has cooling water inlet / outlets (52a) (52b) and a drain port. (53) and the radiator (22) are provided so as to project forward on the front side of the radiator (22) so as to improve workability in maintenance of the radiator (22) and drainage work using the drain port (53). ing.

The fan shaft (26a) of the sirocco fan (26) and the crank output shaft (21a) through the flywheel (54) of the engine (21) are arranged substantially parallel to each other in the left-right lateral direction to output the output. A fan shaft (26a) is interlockingly connected to a counter shaft (56) that is connected to the shaft (21a) via a universal joint shaft (55), and is a counter bearing (56a) fixedly installed on the machine base (3) side. The counter shaft (56) is supported by the output pulley (57) integrally connected to the counter shaft (56), and the input pulley (58) of the speed change mechanism (46) is interlocked with the belt (59). The transmission shaft (62) parallel to the fan shaft (26a) is connected to the input pulley (48) of the sirocco fan (26) via the belt (60) and the pulley (61), and the output is output to the transmission shaft (62). Pulley (5 7) is interlocked with each other via a pulley (63) and a belt (64) to form an engine enclosure room (65) (the engine room that covers the entire engine (21) in a substantially hermetically manner will be referred to as below). By transmitting the rotation of the counter shaft (55) to each part on the outside of the seat column (24), it is necessary to select an appropriate anti-vibration rubber (66) for the engine (21) that is not affected by belt tension. In addition to making it possible, the opening ratio of the insertion hole (67) of the joint shaft (55) formed in the left outer wall of the seat column (24) is suppressed to be small, and the airtightness of the enclosed room (65) is improved. The low noise is promoted by the synergistic effect of using belt transmission without using gears.

A front side wall of the seat column (24) is provided so as to be close to the maximum mission case (49), and a side surface through which the transmission shaft (62) is inserted in the left and right direction on the front side wall of the column (24). An engine enclosure room is formed in the column (24) by forming a recess insertion groove (68) having a triangular shape in view and also providing a rear side wall of the column (24) so as to be closest to the grain tank (15). By expanding the internal volume of (65) to the maximum, the propagation of engine noise to the outside of the column (24) is suppressed to a small level, and further noise reduction is achieved.

Further, the partition wall (27a) separating the suction air passage (32) from the engine enclosure room (65) has a communication hole (69) communicating the air passage (32) and the room (65). , The insertion hole (67) is also used as a ventilation hole for taking in outside air, and the air taken into the room (65) from the insertion hole (67) provided at a low position is connected to the communication hole above the opposite side. By letting the air out of the (69) into the air passage (32), the ambient temperature in the room (65) can be lowered to maintain stable engine performance, and the warm air and the air flowing out from the communication hole (69) can be maintained. The cold heat effect is promoted by merging with the cool air from the suction port (28) in the passage (32).

This embodiment is configured as described above, and by disposing the radiator (22), which requires a large opening for cooling air, away from the engine (21) disposition position, the engine (21 It is possible to make the engine enclosure room (65) for storing the above () a maximum of airtightness and to reduce engine noise, and a radiator for cooling the radiator (22) by blowing air. By using the sirocco fan (26) as the cooling fan, the noise can be further reduced by the static operation as compared with the conventional radial type fan.

Further, by providing the radiator (22) on the front side of the machine body, the maintenance can be easily performed without removing the sheet collum or the like each time, and the suction of air in the sirocco fan (26) can be prevented. By avoiding the vicinity of the fan (26) having a high occurrence rate and sucking the outside air from the right side of the machine body that is not affected by the harvesting work taken in from the outside air suction port (28) of the column (27), the fan ( 26) and the radiator (22) can be satisfactorily worked without being clogged with dust or straw.

Furthermore, by disposing the sirocco fan (26) and the oil cooler (22) on one side of the radiator (22), water or hydraulic piping is provided in the excess space on the opposite side. Devices such as the system and the speed change mechanism (46) can be housed and arranged, and the structure can be made compact. Further, the sirocco fan (26) and the oil cooler (22) are displaced in the same direction, so that the cooling efficiency of the oil cooler (22) is good.

It is desirable to use a centrifugal fan such as a transverse flow fan other than the sirocco fan (26) as the radiator cooling fan, but an axial flow fan may be used.

[0019]

[Effect of device]

 As is apparent from the above-described embodiments, the present invention provides a fan (26) for cooling the blast of the radiator (22) between the engine (21) and the engine radiator (22) at the front of the engine (21), and the radiator (22). Since the oil coolers (47) are respectively arranged on the front side and the oil cooler (47) and the fan (26) are offset to the left and right with respect to the radiator (22), the engine (21) It is possible to achieve a low noise structure by increasing the airtightness of the engine room (65) that houses the engine (21) away from the radiator (22). In this case, one of the fans (26) is It becomes possible to compactly arrange the traveling mission case (49) and the hydraulic continuously variable transmission mechanism (46) in the surplus space on the side of the vehicle, as well as the fan (26) and the oil cooler (4). ) On one side of the extra space compact integration of these piping systems it can also be possible, yet so remarkable effects such as attained also improve the cooling efficiency of the oil cooler.

[Brief description of drawings]

FIG. 1 is a plan view of an engine section.

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

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

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

FIG. 5 is a side view of the engine section.

FIG. 6 is a front explanatory view of an engine section.

FIG. 7 is an explanatory plan view of an engine section.

FIG. 8 is a side view of a radiator portion.

FIG. 9 is a side view illustrating a side column portion.

[Explanation of symbols]

 (21) Engine (22) Radiator (26) Fan (47) Oil cooler

Claims (1)

[Scope of utility model registration request] 1. A fan for cooling the blower of the radiator is provided between the engine and the engine radiator in front of the engine, and an oil cooler is provided on the front side of the radiator, and an oil cooler and a fan are provided on the left and right sides of the radiator. Combined engine device characterized by being deviated to.