JPH1089068A - Radiator intake structure of agricultural work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce straw wastes removing work by a simple improvement on a structure in the radiator intake structure of an agricultural work vehicle in which an intake duct equipped with a dust-proof intake opening is arranged on the intake upper part side of the radiator so that radiator cooling wind is taken into, by arranging the dust-proof intake opening in the corner part of the intake duct. SOLUTION: In the prime mover part 11 of a self-threshing type combine, a radiator 12, an engine 14, an air cleaner 15 and so on are covered with a box type engine bonnet, and a vertical type intake duct 17 is communicated with and connected to the traverse outer side of the vehicle frame of the engine bonnet. At this time, an intake opening 16A with a dust-proofing net 16a is arranged on the front surface of the vehicle frame of the engine bonnet, and an intake opening 17C with a longitudinally long dust-proofing net 17c is arranged in the corner part of a grain collector side. Hereby, straw wastes can be prevented from being adhered to a part extending from the intermediate part between upper and lower parts of the transverse outer side surface of the vehicle frame, which is faced to the radiator 12, to the lower part thereof. Then, the intake opening 15A of the air cleaner 15 is placed in the vicinity of the intake opening 17C, thereby clean air can be sucked.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural work vehicle such as a combine or a riding lawn mower, and more particularly to a radiator air intake structure.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Laid-Open Publication No. 62-59719, a radiator air intake structure of a combine is provided with an air intake duct having a dustproof air intake port on the air intake side of the radiator. It is configured to take in. The dust-proof intake ports are provided on all surfaces such as the front, side, and rear surfaces of the intake duct, and are configured to suppress early clogging due to adhesion of straw chips by increasing the intake area.

[0003]

Conventionally, since all dust-proof intake ports formed in the intake duct are provided in the flat portion of the intake duct, straw dust adhering to the dust-proof intake port is reduced by the negative pressure of the radiator cooling fan. There is an inconvenience that it is difficult to fall down due to vibration of the airframe or the like due to close contact with the flat portion, and frequent clogging removal work must be performed.

Therefore, as means for solving the above-mentioned drawbacks,
It is conceivable to provide a scraper scraping device such as a dust-proof brush driven by an electric motor, but in such a case, there is a disadvantage that the cost is increased.

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to reduce the amount of scraps by simple structural improvement without increasing the cost.

[0006]

According to a first aspect of the present invention, there is provided a radiator for an agricultural work vehicle in which an intake duct having a dust-proof intake port is arranged on the upstream side of the radiator to take in cooling air from the radiator. In the intake structure,
A dust-proof intake port is provided at a corner of the intake duct. [Operation] Since the corner of the intake duct is a curved surface, it is difficult for straw chips to adhere to the intake formed at the corner, and even if it adheres, it will be bent or bent on one of the two surfaces. It is easy for the attached waste chips to take off from the other surface, and it is difficult for the radiator cooling fan to exert a negative pressure on the projecting portion. [Effect] As a result of the above configuration, it is possible to suppress the adhesion of straw chips to the dust-proof intake port by a simple structure improvement in which the dust-proof intake port is set at the corner of the intake duct.

According to a second aspect of the present invention, the agricultural work vehicle is a combine, and a dust-proof intake port formed at a corner of an intake duct is provided at a corner on the side of a grain collecting device which is juxtaposed with a prime mover. It is. [Action] When applied to a combine equipped with a grain collection device, clothing such as pants and sleeves of a bag changing worker and a grain collection bag may come into contact with the corner of the intake duct. Straw chips attached to the dust-proof air intake are scraped off. [Effect] As a result of the above-described configuration, the adhesion of straw chips to the dust-proof intake port at the corner of the intake duct is reduced, and the number of times the dust-proof intake port is clogged can be reduced.

According to a third aspect of the present invention, the suction port of the air cleaner faces the vicinity of the dust-proof suction port formed at the corner of the suction duct. [Operation] The air cleaner can suck clean air from which dust such as straw chips has been removed by the dust-proof intake port formed at the corner of the intake duct. [Effect] As a result of the above configuration, the work of replacing the filter of the air cleaner can be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an overall side view of a self-detachable combine, wherein 1 is a pre-cutting device having a cereal stem raising device 2 and a clipper-type cutting device 3, 4 is a threshing device, 5 is a threshing device,
Is a control unit having an operation lever 6 and a driver's seat 7; 8 is a grain collecting device having a grain storage hopper 9 and a bag supporting rod 10 for hanging paddy bags; 11 is provided at a lower part of the driver's seat 7 Power unit.

As shown in FIG. 2 to FIG.
1 is a radiator 12 on the lateral outside of the fuselage below the driver's seat,
A horizontal engine 14 having a radiator cooling fan 13 is disposed on the inner side, and an air cleaner 15 is disposed at a lower rear portion of the engine 14. The radiator 12, the engine 14, the air cleaner 15 and the like are opened on the lateral inner side of the fuselage. The engine is covered with a box-shaped engine bonnet 16, and a vertical intake duct 17 is connected to the engine bonnet 16 laterally outward of the fuselage.

An intake port 16A with a dustproof net 16a is provided on the front surface of the engine bonnet 16 and a suction port 16B with a dustproof net 16b is provided on the lateral outer side of the fuselage. In addition, an intake port 17A with a dust-proof net 17a at the upper part of the lateral side of the body of the intake duct 17 and an intake port 17B with a dust-proof net 17b at the upper side of the lateral inner side of the body, and a rear corner of the lateral side of the fuselage. That is, an intake port 17C with a vertically long dustproof net 17c is provided at a corner on the side of the grain collection device 8, and an intake port 17D with a dustproof net 17d is provided on the lower surface. On the inner surface of the engine bonnet 16 on the front side of the fuselage, there is provided an intake path for guiding the radiator cooling air sucked from the intake port 16A on the front of the bonnet to the laterally outer side of the fuselage to join with the radiator cooling wind of the intake duct 17. Guide member 18
Is provided. The part of the intake duct 17 facing the radiator 12, that is, the part extending from the upper and lower middle to the lower part of the lateral outer surface of the body facing the radiator 12 where the negative pressure effect of the radiator cooling fan is the strongest is a wall surface. It is configured so that straw chips do not adhere.
Then, the air inlet 15A of the air cleaner 15 is made to penetrate the outer lateral surface of the hood 16 through the airframe, and a dustproof air inlet 17 formed at the rear corner of the air intake duct 17 is formed.
It is configured to draw clean air in the vicinity of C.

The lower portion of the intake duct 17 is rotatably mounted on the body frame about the front-rear axis and laterally outwardly of the body. The driver's seat 7 and the fuel tank 19 mounted on the upper surface of the bonnet 16 are integrally rotatable laterally outward of the fuselage, and the upper part of the engine 14 is widely opened to facilitate maintenance.

As shown in FIGS. 5 and 6, the raising device 2
The raising claw 20 is rotatably supported by the raising chain 21 and is raised by a raising claw raising roller 22 integrated with the lower passive sprocket 23, and is raised by a raising claw raising rail 29. Is to be maintained. When the raising claws 20 are raised and disengaged from the upper portions of the claw raising rails 29 and are stored in the case 24, the impact noise generated by the raising claw 20 abutting against the claw raising rails 29 is reduced. Raise the raised claw rail 2
A bent portion 29A is formed at the upper end of the case 9 and bent toward the inside of the case 24, so that the raised claw 20 gradually falls.

As shown in FIG. 7, this combine is configured to lubricate the raising chain 21 with the raising claw 20 of the raising device 2 as follows. A supporting shaft 25 fixed to a raising case 24 for supporting a lower passive sprocket 23 provided with a raising claw erecting roller 22 so as to be relatively rotatable has a hole 26a extending in the axial direction and a radial centering on the axial center. Lubrication hole 2 consisting of hole 26b
6, while the lower sprocket 23 has an annular groove 2
7a, radial holes 27b are formed at predetermined intervals in the circumferential direction to communicate with the valleys of the teeth of the sprocket, and a lubrication hose 28 connected to a lubrication tank (not shown) is connected to the support shaft 25. It is configured to be raised through a formed hole 26 and a radial hole 27b formed in the lower passive sprocket 23 to lubricate the chain 21. According to the above structure, the support shaft 25
The oil that has passed through the inside oozes out into the valleys of the teeth of the lower passive sprocket 23, is raised with the rotation of the lower passive sprocket 23, and is injected over the entire circumference of the chain 21.

[Other Embodiments] In the above embodiment, the radiator intake structure of the combine has been described. However, the present invention can be applied to a radiator intake structure of an agricultural work vehicle such as a riding lawn mower or a tractor.

In the above embodiment, the dustproof intake port is provided at the rear corner of the intake duct, but may be provided at the front corner and the upper corner.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a longitudinal rear view of a driving unit.

FIG. 3 is a cross-sectional plan view of the same.

FIG. 4 is an exploded perspective view of the same.

FIG. 5 is a front view showing the inside of the raising device.

FIG. 6 is an explanatory view showing a raised nail falling state;

FIG. 7 is a vertical sectional side view of a lower portion of the raising device.

[Explanation of symbols]

 8 Grain recovery device 12 Radiator 15 Air cleaner 15A Suction port 17 Intake duct 17C Dustproof intake port

Claims (3)

[Claims] 1. A radiator intake structure for an agricultural work vehicle in which an intake duct having a dust-proof intake port is arranged on the upstream side of a radiator to take in radiator cooling air, wherein a dust-proof intake port is provided at a corner of the intake duct. Radiator intake structure of agricultural work vehicle equipped with. 2. The agricultural work vehicle according to claim 1, wherein the agricultural work vehicle is a combine, and a dust-proof intake port formed at a corner of the intake duct is provided at a corner on the side of the grain collection device which is juxtaposed with the driving unit. Radiator intake structure for agricultural work vehicles. 3. The radiator intake structure for an agricultural work vehicle according to claim 1, wherein an intake port of the air cleaner faces the vicinity of a dustproof intake port formed at a corner of the intake duct.