JP2832665B2 - 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 on one of the left and right sides of the engine, which is located outside the fuselage, at a position close to the engine, and a cooling fan for blowing and cooling the radiator. Also, a radial fan is generally used.

[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.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides an engine in an engine room below a seat column, and a radiator blower cooling fan below a step in front of the seat column. By making the intake port of the air path guide provided in the intake port face the engine room, it is possible to isolate the engine from the radiator and to achieve a low noise structure in which the degree of sealing of the engine room is increased, and the air path guide is provided. Can be arranged compactly with the fan drive unit, and the ventilation in the engine room can be performed well to maintain stable engine performance.

[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 a perspective explanatory 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 in which a feed chain (5) is stretched to the left and a handling drum (6) and a processing drum (7) are built in, (8).
Is a cutting unit including a cutting blade (9) and a culm transport mechanism (10), (11) is a hydraulic cylinder that moves the cutting unit (8) up and down through a main frame (12), and (13) is a straw chain. (14) A straw processing unit facing the end, (15) a grain tank for carrying the grains from the threshing unit (4) through a fryer (16), and (17) a tank for the tank (15). A discharge auger for carrying out grains outside the machine, (18) is an operation unit (1)
9) and an operation section having an operator's seat (20), (21) is an engine provided below the operator's seat (20), and is configured to continuously cut husks and thresh.

As shown in FIGS. 4 to 8, the engine (21) is separated from an engine radiator (22) for cooling a 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)
An engine (21) is arranged in a seat column (24), which is a substantially closed box-shaped seat column case that supports the upper surface of a vehicle, and a step (25) lower portion between the seat column (24) and the operation column (23). A sirocco fan (26) for blowing air to the radiator (22) to radiate and cool the radiator (22) is provided to reduce noise of the engine (21) and the radiator cooling fan. It is composed.

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) provided at the lower front end of the left inner wall of the column (27), a right suction port (31a) opened on the right outside surface of the fan casing (30) of the sirocco fan (26). The sirocco fan is configured to send air to a radiator (22) on the front side to radiate and cool the radiator (22) by sending the air to a fan (26) through the sirocco fan. The air suction air passage (32) of (26) is formed.

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 faces the air passage guide (33), and the air in the engine enclosure room (34) is passed through the ventilation air passage (35) formed in the air passage guide (33). ) Is sucked from one side of the left side of the sirocco fan (26) to prevent the dust and the like generated at the cutting section (8) at the left position from being sucked, thereby preventing clogging of the dustproof net such as the radiator (22). doing.

Still further, the sirocco fan (26)
An air passage casing (36) for guiding cooling air from the radiator (22) to the radiator (22) is provided integrally between the fan casing (30) and the radiator (22). ) Is integrally connected to the rear portion of the air path casing (36) via bolts (37), and the air path casing (36) and the radiator (2) are connected.
Pivot plates (38) and (3) fixed to the left and right sides of 2), respectively.
9) are integrally connected via bolts (40). A receiving member for fixing the upper and lower support plates (41) and (42) fixed to the upper and lower ends of the air path casing (36) to the left and right side surfaces of the operation column (23) and the front end side of the machine base (3). (4
3) The radiator (22) and each of the casings (30) (3) are connected to and supported by the (44) via a vibration isolating rubber (45).
The three members 6) are integrally supported at the lower portion of the step (25) to prevent vibration from being transmitted to the step (25).

[0010] An oil cooler (47) of a hydraulic stepless speed change mechanism (HST) (46) for shifting the traveling 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 (47) are displaced so that their right ends in plan view are aligned, and in the extra space on the left side of the displaced fan casing (30),
A drive system such as an input pulley (48) fixed to the air path guide (33) and a fan shaft (26a) of the sirocco fan (26); and the transmission mechanism (46) integrally mounted on a transmission case (49). The two water hoses (50) and the speed change mechanism (50) for connecting the engine (21) and the radiator (22) with the extra space on the left side of the fan casing (30) and the oil cooler (47) substantially in parallel. By using a hose path such as a hydraulic hose (51) connecting the oil cooler (46) and the oil cooler (47), these can be arranged in a compact manner.

Further, the radiator (22) is provided in a forwardly inclined position in which the radiator (22) is inclined forward toward the upper end, and the water hose (5) is provided.
0), a cooling water inlet / outlet (52a) (52b) and a drain port (53) of the radiator (22) are connected to the front side of the radiator (22) so as to protrude forward to maintain the radiator (22). Also, the workability is improved in drainage work using the drain port (53).

A fan shaft (26a) of the sirocco fan (26) and a flywheel (54) of the engine (21).
And a counter shaft (56) connected to the output shaft (21a) via a universal joint shaft (55) and a fan shaft (26a). ) Are linked to each other, and the counter shaft (5) is attached to a counter bearing (56a) fixedly mounted on the machine base (3) side.
6), the input pulley (58) of the speed change mechanism (46) is interlocked via a belt (59) to an output pulley (57) integrally connected to the counter shaft (56), and the sirocco fan (26) Input pulley (48)
The output pulley (57) is connected to the pulley (63) and the belt (6) on a transmission shaft (62) parallel to the fan shaft (26a) interlockingly connected to the fan (26a) via a belt (60) and a pulley (61).
4) The rotation of the counter shaft (55) is belt-transmitted to the respective parts outside the seat column (24) forming the engine enclosed room (34) by interlocking connection through the 4), thereby being affected by belt tension. It is possible to select an appropriate anti-vibration rubber for mounting the engine (21) without any gaps and to reduce the opening ratio of the insertion hole (65) of the joint shaft (55) formed on the left outer wall of the seat column (24). To
Improve the degree of sealing of this enclosed room (34),
It is configured to promote low noise by a synergistic effect using belt transmission without using gears or the like.

The fan shaft (26a) of the sirocco fan (26) is detachably fixed to the left side plate of the air path guide (33) via bolts (66).
7), a fan drive unit such as a pulley (48) attached to the fan shaft (26a) and the guide (33) are arranged in a compact state that does not interfere with both.

Further, a front wall of the seat column (24) is provided so as to approach the maximum transmission case (49), and the transmission shaft (62) is provided on a front wall of the column (24).
Are inserted in the left-right direction.
8) and the rear wall of the column (24) is also provided so as to be as close as possible to the grain tank (15) to maximize the internal volume of the engine enclosure (34) formed in the column (24). By expanding to
The transmission of the engine noise to the outside of the column (24) is suppressed to a small level to further reduce the noise.

On the other hand, left and right ventilation inlets (69) (70) for taking in outside air into the enclosed room (34).
Are provided substantially diagonally across the engine (21) of the intake port (33a) in plan view, and the left intake port (69) is provided.
The right side air inlet (70) is opened at the rear upper part of the left side wall of the room (34), and the right side air inlet (70) is opened at the rear lower part of the right side wall of the room (34). The outside air from the air passage (32) which is taken in from the mouth (70) is made to circulate the entire engine (21) evenly, so that the engine (21) and a decrease in the ambient temperature are promoted. doing.

The intake port (69) has a dustproof net (71) at the entrance, and a labyrinth intake path (75) is formed in the room (34) by first and second partition plates (73) and (74). At the same time, the lower end of the second partition plate (74) is formed on an inclined surface (74a), and the intake passage outlet (75) which is open downward between the lower end of the partition plate (74) and the left side wall of the room (34).
a) is formed so as to promote the fall of the dust and the like in the outside air taken into the intake path (75) without accumulating on the inclined surface (74a).

Further, air for supplying air to the engine (21) is supplied to an intake path extension (75b) between the second partition (74) and the left side wall of the room (34), which is located just before the outlet (75a). The inlet side of the suction pipe (77) of the cleaner (76) protrudes at right angles to the air cleaner (76).
The main body is arranged on the upper surface of the seat column (24) outside the room (34) to improve the maintenance of the elements and the like, and the intake port faces the expansion portion (75b) to take in clean air. During the intake, the engine (2) is separated by the partition plates (73) and (74).
The configuration is such that the suction of the hot air from 1) is prevented and the intake noise is reduced, so that the air cleaner (76) can suction air well.

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 this, static noise can be further reduced and noise can be further reduced as compared with a conventional radial fan.

Further, by providing the radiator (22) on the front side of the body, maintenance and the like can be easily performed from the front side of the body without removing a seat column or the like each time, and air suction by the sirocco fan (26) can be performed. In addition, the suction can be performed while avoiding the vicinity of the fan (26) having a high dust generation rate, and the fan (26) and the radiator (22) can perform good work without clogging of dust and straw chips. It is.

Further, when the radiator (22) is cooled by the sirocco fan (26), the ventilation in the enclosed room (34) is simultaneously performed well by the air path guide (33), so that the engine (21). This guide (3) can keep the performance stable for a long time.
In the arrangement 3), a compact arrangement can be made integrally with the drive unit of the sirocco fan (26).

It is preferable to use a sirocco fan (26) or a centrifugal fan such as a cross flow fan as the radiator cooling fan, but an axial flow fan may be used.

[0022]

As is apparent from the above embodiments, the present invention provides a structure in which the engine room (3) below the seat column (24) is provided.
4) The engine (21) and the seat column (2)
4) Radiator (22) at the lower part of the front step (25)
Fans (26) for blast cooling are respectively provided, and the air inlet (33a) of the air path guide (33) provided in the air inlet (31b) on one side of the fan (26) faces the engine room (34). The engine (2
1) can be separated from the radiator (22) to enable a low noise structure in which the degree of sealing of the engine room (34) is increased, and the air path guide (33) is compactly integrated with the fan drive unit. The engine room (34) has good effects such as good ventilation and good engine performance.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective 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 side view of an engine unit.

FIG. 5 is an explanatory plan view of an engine unit.

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

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

FIG. 8 is an explanatory side view of a radiator unit.

[Explanation of symbols]

(21) Engine (22) Radiator (24) Seat column (26) Fan (31b) Inlet (33) Airway guide (33a) Inlet (34) Engine room (engine enclosure room)

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akihiko Nakaya 1-32 Chaya-cho, Kita-ku, Osaka-shi Inside Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Toshinori Kirihata 1-32 Chaya-cho, Kita-ku, Osaka-shi No. Within Yanmar Agricultural Machinery Co., Ltd. (72) Koji Moriyama, Inventor 1-32 Chayacho, Kita-ku, Osaka City Inside Yanmar Agricultural Machinery Co., Ltd. (72) Kazuo Kotake, 1-32 Chayacho, Kita-ku, Osaka City No. Yanmar Agricultural Machinery Co., Ltd. (58) Field surveyed (Int. Cl. ⁶ , DB name) A01D 41/12 F01P 1/00

Claims (1)

(57) [Claims] 1. An engine in an engine room at a lower portion of a seat column, and a fan for radiator air cooling at a lower portion of a step in front of the seat column, and an air intake guide provided at an air intake port on one side of the fan. An engine device for a combine, wherein the mouth is configured to face the engine room.