JP2832707B2 - Combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine for performing a harvesting operation while driving various parts such as a traveling part, a mowing part and a threshing part by an engine.

[0002]

Conventionally, the engine and the radiator are arranged close to each other, and the surroundings of the engine are ventilated by cooling air of the radiator. In addition, there is a problem that the cooling efficiency of the engine is reduced and the output loss of the engine is increased by reducing the noise generated, and dust generated by the harvesting work enters the inside of the engine housing and accumulates on the outer peripheral surface of the engine. There is a defect,
Simplification of engine cooling structure, simplification of engine soundproofing structure, simplification of engine dust removal structure, simplification and compactness of engine and radiator mounting structure, improvement of engine maintenance and inspection workability, and improvement of temperature after cooling the radiator There is a problem that it is not easy to effectively utilize the wind.

[0003]

SUMMARY OF THE INVENTION The present invention provides a combiner in which an engine for driving a mowing unit and a threshing unit is installed in an engine housing and a radiator for cooling the engine water is installed outside the engine housing. The cooling fan of the radiator is used to ventilate the interior of the engine housing. The cooling fan of the radiator can be used as well to simplify the ventilation structure of the engine housing and reduce the manufacturing cost. By means of forced ventilation, it is possible to easily improve the soundproofness by sealing the engine housing and the cooling efficiency inside the engine housing.

In addition, a duct member for communicating the inside of the engine housing with the cooling air passage of the radiator is provided, so that the radiator structure and the engine housing structure can be prevented from being mutually limited by the connection of the duct members, and the radiator can be eliminated. It is possible to easily simplify the mounting structure, the water cooling piping structure, and the radiator air cooling structure.

[0005] Further, an outside air intake housing for forming dust removal air to be supplied to the radiator and the engine housing is provided, and both the radiator and the engine housing are used as the outside air intake housing by the dust removal air. It can be cooled and the dustproof structure of the engine housing can be easily simplified.

Also, an outside air intake housing for forming dust-removed air is provided outside the engine housing machine, and a front portion of the outside air intake housing extends forward of the front surface of the engine housing. A radiator and a cooling fan are installed inside the engine unit and in front of the engine housing. The outer surface of the engine housing, the radiator and the cooling fan mounting unit can be closed by an outside air intake housing, and the engine housing and the radiator In addition, maintenance and inspection workability can be easily improved by opening the outer surface of the cooling fan mounting unit.

Further, an engine housing is provided behind the worker boarding step, a radiator is provided below the worker boarding step, and an outside air intake housing for forming dust-removed air is provided between the worker boarding step and the engine housing. The radiator and cooling fan can be compactly stored using the lower surface side of the worker boarding step, and the engine housing, outside air intake housing, worker boarding step, etc. are functionally arranged. Can be done.

In addition, a radiator is provided below the step of boarding the operator and the warm air after cooling the radiator is discharged to the front side of the step. The radiator is located below the front side of the cutting section adjacent to the step. The warm air is sent out, and the cutting blade or the grain stalk raking and conveying unit that is easily moistened to the moisture of the root of the harvested grain stalk is dried by the warm air, and straw chips or dust adheres to the harvested part. This can easily eliminate inconveniences and the like.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory perspective view of an engine unit, and FIG.
3 is an overall side view of the combine, FIG. 3 is a plan view of the combine, (1) is a track frame on which the traveling crawler (2) is mounted, (3) is a machine frame installed on the track frame (1), (4) a threshing unit 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 mowing section provided with a cutting blade (9) and a culm transport mechanism (10), (11) is a hydraulic cylinder that moves the mowing section (8) up and down via a main frame (12), and (13) is Straw processing unit facing the end of straw chain (14), (1
5) is a grain tank for carrying the grains from the threshing unit (4) via a fryer (16), and (17) is the tank (15).
(18) is an operation unit having an operation unit (19) and a driver's seat (20); (2)
Reference numeral 1) denotes an engine provided below the driver's seat (20), which 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 disposed 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 also opened on the left outer side surface 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).

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 posture 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).

The fan shaft (26a) of the sirocco fan (26) and the 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.

As is apparent from the above description, the engine (21) for driving the cutting unit (8) and the threshing unit (4) is provided inside a seat column (24) as an engine housing.
In the combine where the engine (21) radiator (22) for water cooling is installed outside the seat column (24),
The sirocco fan (26), which is a cooling fan of the radiator (22), is used to ventilate the interior of the seat column (24), and the sirocco fan (26) of the radiator (22) is also used for ventilation of the seat column (24). Simplification and reduction of manufacturing cost can be performed, and the forced ventilation of the sirocco fan (26) enables the seat column (2).
4) Improvement of soundproofing by sealing and seat column (2)
4) A fan casing (30) for improving the internal cooling efficiency and serving as a cooling air passage for the radiator (22).
An air passage guide (33), which is a duct member for communicating the inside of the seat column (24), is provided on the vehicle, and the radiator (22) structure and the seat column (24) structure are mutually restricted by the connection of the air passage guide (33). Eliminating the problems, simplifying the radiator (22) mounting structure, simplifying the water-cooled piping structure, simplifying the radiator (22) air-cooling structure, and the like, and improving the radiator (22) and the seat column (2).
4) a right side column (27), which is an outside air intake housing for forming dust-removing air to be fed to the right side column (2);
Radiator (22) and seat column (2)
Both of them are cooled by dust-free air, so that the dust-proof structure of the seat column (24) can be simplified.

A right side column (27) for forming dust-removing air is provided outside the seat column (24), and the right side column (2) is provided forward of the front surface of the seat column (24).
7) Extend the front part and radiator (22) forward of the seat column (24) inside the right side column (27) front machine.
And the sirocco fan (26) is installed, and the outer surface of the seat column (24) and the radiator (22) and the sirocco fan (26) mounting portion are closed by the right side column (27), and the seat column (24) and the radiator ( 2
2) and the sirocco fan (26) mounting part can be improved by improving the maintenance and inspection workability by opening the outer surface of the machine.
The seat column (24) is provided behind the worker boarding step (25), the radiator (22) is provided below the worker boarding step (25), and the right side column (27) forming dust-removing air is worked. The radiator (22) and the sirocco fan (26) are compactly stored using the lower side of the operator step (25) and the seat column (24). 24), the right side column (27), the operator boarding step (25) and the like are functionally arranged. The radiator (22) is arranged below the operator boarding step (25), and the radiator (22) is arranged. The hot air after cooling is discharged to the front side of the step (25), and the hot air from the radiator (22) is sent out below the cutting section (8) adjacent to the step (25). Thereby, the cutting blade (9) or the grain stalk raking and conveying unit which is easily moistened to the moisture or the like at the base of the harvested grain stalk is dried by the warm air, and straw chips or dust adheres to the harvesting unit (8). It is configured to eliminate defects.

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 the air suction by the sirocco fan (26). 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) is cooled. 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).

Although it is desirable to use a sirocco fan (26) and a centrifugal fan such as a cross flow fan as the radiator cooling fan, an axial flow fan may be used.

[0028]

As is apparent from the above embodiments, the present invention provides an engine (21) for driving a cutting unit (8) and a threshing unit (4) in an engine housing (24).
The engine (21) has a radiator (22) for water cooling installed outside the engine housing (24).
The cooling fan (26) of the radiator (22) is used to ventilate the interior of the engine housing (24), and the cooling fan (26) of the radiator (22) is also used for ventilation of the engine housing (24). Simplification, reduction of manufacturing cost, etc. can be easily performed, and the forced ventilation of the cooling fan (26) improves soundproofness by sealing the engine housing (24) and cooling efficiency inside the engine housing (24). Improvement can be easily achieved.

The cooling air passage (3) of the radiator (22)
0) is provided with a duct member (33) for communicating the inside of the engine housing (24) with the radiator (22) structure and the engine housing (2) by connecting the duct member (33).
4) It is possible to eliminate the problem that the structures are mutually restricted,
It is possible to easily simplify the radiator (22) mounting structure, the water cooling piping structure, and the radiator (22) air cooling structure.

Further, an outside air intake housing (27) for forming dust removal air to be fed to the radiator (22) and the engine housing (24) is provided, and also serves as the outside air intake housing (27). Thus, both the radiator (22) and the engine housing (24) can be cooled by dust-free air, and the dust-proof structure of the engine housing (24) can be easily simplified.

An outside air intake housing (27) for forming dust-removed air is provided outside the engine housing (24), and the outside air intake housing (27) is located forward of the front of the engine housing (24).
The radiator (22) and the cooling fan (26) are installed with the front part extended and the outside air intake housing (27) in front of the engine housing (24) inside the front machine, and the engine housing ( 24) and radiator (22) and cooling fan (2
6) The outer surface of the attachment unit can be closed by the outside air intake housing (27), and the engine housing (24) and the radiator (22).
In addition, maintenance and inspection workability can be easily improved by opening the outer surface of the mounting portion of the cooling fan (26).

Further, an engine housing (24) is provided on the rear side of the worker boarding step (25), and a radiator (22) is provided on the lower side of the worker boarding step (25). The radiator (22) and the cooling fan are provided with the housing (27) provided outside the worker boarding step (25) and the engine housing (24) using the lower surface side of the worker boarding step (25). (26) can be stored compactly, and the engine housing (24) and the outside air intake housing (2)
7) and the operator boarding step (25) can be arranged functionally.

Further, a radiator (22) is provided below the worker boarding step (25), and the warm air after cooling the radiator (22) is discharged to the front side of the step (25). The cutting blade (9) which is easily wetted with moisture or the like at the root portion of the cut culm stem by sending warm air from the radiator (22) to the front lower side of the cutting unit (8) adjacent to the step (25). Alternatively, the grain stalk raking and conveying section is dried by the warm air to easily eliminate such a problem that straw chips or dust adhere to the cutting section (8).

[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 the engine unit.

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

FIG. 6 is an explanatory front view of the 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]

 (4) Threshing section (8) Cutting section (21) Engine (22) Radiator (24) Seat column (engine housing) (25) Step (26) Sirocco fan (cooling fan) (27) Right side column (external air intake) (Enclosure) (30) Fan casing (cooling air path) (33) Air path guide (duct member)

──────────────────────────────────────────────────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 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 No. Yanmar Agricultural Machinery Co., Ltd. (58) Fields surveyed (Int. Cl. ⁶ , DB name) A01D 41/12 F01P 5/06 501 F01P 5/06 510

Claims (6)

(57) [Claims] 1. A combiner in which an engine for driving a mowing unit and a threshing unit is installed in an engine housing, and a radiator for cooling the engine water is installed outside the engine housing. A combine that features internal ventilation. 2. The combine according to claim 1, wherein a duct member is provided for communicating the inside of the engine housing with a cooling air passage of the radiator. 3. The combine according to claim 1, further comprising a radiator and an outside air intake housing for forming dust-removing air to be supplied to the engine housing. 4. An external air intake housing for forming dust-removed air is provided outside the engine housing machine, and a front portion of the external air intake housing extends forward of a front surface of the engine housing. The combine according to claim 1, wherein a radiator and a cooling fan are provided inside the unit and forward of the engine housing. 5. An engine housing is provided at a rear side of an operator boarding step, a radiator is provided at a lower side of the operator boarding step, and an outside air intake housing forming dust-removing air is provided at the worker boarding step and the engine housing. The combine according to claim 1, wherein the combine is provided outside the machine. 6. The combine according to claim 1, wherein a radiator is provided below the step of loading the worker, and the hot air after cooling the radiator is discharged to the front side of the step.