JP2594279Y2 - Farm work machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural working machine, and more particularly to an agricultural working machine having an engine and a radiator, a cooling water passage between the engine and the radiator, and a vent on the outer surface of the machine body.

[0002]

2. Description of the Related Art Conventionally, in this type of agricultural working machine, for example, a combine, a mowing device is provided at a front portion of a body having a traveling device, and a threshing device is provided at a rear portion of the body. While the grain tank is arranged on the side of the threshing device, for example, an engine room covered with an outer plate is formed behind the grain tank, and the engine and the engine and the outside of the engine are formed in the engine room. A radiator for cooling the engine and a radiator fan are provided, and an opening / closing cover having a ventilation hole for taking in cooling air of the radiator is provided at a front position of the radiator, and cooling air is taken in from the ventilation hole to cool the engine. The heat is radiated by the radiator using air.

Further, the radiator and the radiator fan are fixed in the room via a mounting base or the like.

[0004]

However, in the above-mentioned agricultural working machine such as a combine, a sorting device is provided below the threshing device, and the dust after sorting the grains by the sorting device is removed together with the waste straw. Since the dust is scattered to the rear of the fuselage, the dust easily enters the ventilation hole of the engine room, and particularly when the engine room is provided at the rear of the fuselage, the dust is provided at the rear of the fuselage. It will be located near the discharge part of the dust, and therefore, the dust that is discharged to the outside together with the waste from the discharge part and scatters enters from the vent, and the radiator is clogged by the dust, There has been a problem that dust adheres to the engine, the air circulation is deteriorated, the heat radiation effect is reduced, and the engine is heated. For this reason, radiators, radiator fans, and engines need to be cleaned and maintenance frequently, and sometimes need to be replaced.At this time, in order to perform cleaning, the radiators and radiator fans must be replaced. It must be removed from the engine room, and when inspecting the engine, since the engine is disposed inside the radiator in the engine room, it is necessary to remove the radiator. However, the cleaning, maintenance and inspection work, and replacement work become complicated as a whole, and there is a problem that much time and labor are required.

An object of the present invention is to provide an agricultural machine capable of easily cleaning, maintaining and inspecting the radiator, the radiator fan, and the engine without removing the radiator and the radiator fan from the engine room, and also simplifying the replacement work. Is to do.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an agricultural work machine in which a radiator connected to an engine via a cooling water passage is swingably supported via a support. The cooling water passage is divided into an engine-side passage connected to the engine and a radiator-side passage connected to the radiator, and the support is connected to a division of the engine-side passage. A shaft portion coupled to the cutting portion of the radiator-side passage portion, the shaft portion being rotatable such that the engine-side passage portion and the radiator-side passage portion communicate with the tubular portion. It is characterized by being supported.

[0007]

When cleaning the radiator 71 and the engine 6 or performing maintenance and inspection, the radiator 71 is not removed from a fixing device for fixing the radiator 71 to the body 1 without removing it.
By simply swinging the radiator 71, the radiator 7
Cleaning before and after 1 can be easily performed, and the engine 6 can be opened to the outside, so that maintenance and inspection of the engine 6 can be easily performed. Further, since the cooling water passage 8 is made to pass through the center of rotation, even if the radiator 71 swings, the cooling water passage 8 does not hinder the swing.

[0008]

1 and 2 show a general-purpose combiner, in which a traveling device 2 is provided at a lower portion of a body 1 and a mowing device 3 is raised and lowered via a hydraulic lifting device 37 at a front portion. A threshing device 4 having a screw-type handling cylinder 41 and an oscillating sorting device 42 are provided on the upper side of the machine body 1 while being supported as possible, and the threshing device 4 performs threshing on the side of the threshing device 4. A grain tank 5 for storing grains is provided, and a driver's seat 11 and a driving operation unit 12 are provided in front of the grain tank 5, and an engine 6 and an engine 6 are provided behind the tank 5. A radiator fan 72 and a radiator 71 are juxtaposed on the side of the fuselage, and the engine 6 and the radiator 71 are connected by a cooling water passage 8.
The radiator 71 and the radiator fan 72 are covered with an outer plate 13, and a cover 14 having a vent 15 is attached to the front side of the radiator 71 so as to be openable and closable. Further, at the rear of the threshing device 4, a discharge section 43 for discharging straw and dust is provided.

The cutting device 3 is connected to a cereal header 31 for taking in uncut culms, a reciprocating drive type cutting blade 32 mounted between the headers 31, a cereal stem raking drum 33 and the header 31, and the cutting blade 32. And a conveyor unit 34 having a conveyor 35 for conveying the culm harvested in step 3 to the threshing apparatus 4 and a cereal stem raking reel 36 supported by the header 31.

In the combine constructed as described above, as shown in FIGS. 3 and 4, the radiator fan 72 is provided integrally with the radiator 71, and the radiator 71 is disposed between the engine 6 and the cover 14. , The cover 14
A support 9 for swingably supporting the radiator 71 is provided near a support portion for opening and closing the radiator 71, and the radiator 71 is swingably supported on the support 9. That is, the support body 9 is fixed to the body 1 by the outer cylinder 91.
And a shaft portion 92 that swings inside the outer cylinder 91,
As will be described later, the radiator 71 is swingably supported at a position facing the engine 6 and at a position where the engine 6 opens to the ventilation port 15 formed in the cover 14. The support 9 is provided so that the cooling water passage 8 passes through the rotation center of the radiator 71.
The cooling water passage 8 is formed therein.

Specifically, between the engine 6 and the cylindrical portion (hereinafter referred to as an outer cylinder) 91 of the support body 9, the cooling water passage 8 is partly cut off from the middle in the longitudinal direction. Two engine-side passages (hereinafter referred to as engine-side pipes) 8
1, 81 are connected up and down, and the radiator 71
Between the cooling water passage 8 and the shaft 92 of the support 9.
The two radiator-side passages (hereinafter, referred to as radiator-side pipes) 82, 82 which are part of each other are connected up and down. That is, as shown in FIG. 5 to FIG.
At the connection position of the engine-side pipes 81, 81 in the outer cylinder 91, insertion portions 91a for inserting and fixing the pipes 81 are formed at upper and lower positions.
1 and the shaft 92 of the support 9.
In the shaft portion 92, at the same height position as the insertion portion 91a, in the same plane, the central portion of the shaft portion 82 is bent at 90 degrees at the center thereof, and two opening portions respectively opening on the outer surface of the shaft portion 92 L-shaped first passage 83 whose one opening is closed by the inner peripheral surface of the outer cylinder 91 when one opening faces the insertion portion 91a due to the swing of the shaft portion 92. A second passage 84 extending from the bent portion of the first passage 83 toward the center in the axial direction;
3, a third passage 85 communicating with the second passage 84 is formed. The third passage 85 communicates with the second passage 84. The radiator-side pipe 82 is connected to the passage 85. The engine-side pipe 81 is connected to the first passage 8.
3, the second passage 84, the third passage 85, and the radiator-side pipe 82 form the cooling water passage.

At the same height position as the opening of the third passage 85 in the outer cylinder 91, the radiator-side pipe 82 connected to the opening of the third passage 85 can swing. A notch 91b extending in the circumferential direction is provided. That is, the radiator-side pipe 82 can be inserted, and the radiator-side pipe 82 can also swing along with the swing of the shaft portion 92 to form a notch 91b that is notched in the circumferential direction, and is formed in the third passage 85. The radiator-side pipe 82 is connected by inserting the notch 91b,
When the radiator-side pipe 82 is connected to the third passage 85, the cutout portion 91b
The radiator 71, which is connected and fixed via the radiator-side pipe 82, can swing in a range of 90 degrees in the same direction as the opening and closing of the cover 14 from a state in which the radiator 71 is juxtaposed with the engine 6. . Reference numeral 73 denotes a motor for driving the radiator fan 72.

Next, the radiator 71 is connected to the support 9
The operation of the present invention, which is swingably supported, will now be described.

The radiator 71 is normally held in a state in which it is juxtaposed with the engine 6, that is, in a state shown by a dashed line in FIG. 3. From this state, cleaning and inspection of the radiator 71 and the engine 6 are performed. Is performed, the radiator 71 is rotated by 90 degrees about the support 9 as shown by the solid line in FIG. Cleaning and inspection of the engine 71 and the engine 6 can be easily performed.

When the radiator 71 is arranged in parallel with the engine 6, as shown in FIGS. 5 to 7, the opening of the first passage 83 formed in the shaft 92 of the support 9 is provided. Of the third passage 85 connecting the radiator-side pipe 82,
The opening located in the opposite direction is closed by the outer cylinder 91, and the other opening faces the engine-side pipe 81. By doing so, the opening of the third passage 85 that connects the radiator-side pipe 82 opens in a direction at 90 degrees to the engine-side pipe 81 as shown in FIG. 6, and the radiator 71 As shown by a dashed line in FIG.

When the radiator 71 is rotated by 90 degrees so that the engine 6 is opened by opening the cover 14, as shown in FIGS. The first passage 8 formed in
3, the opening located in a direction 180 degrees opposite to the connection position of the radiator-side pipe 82 is opposed to the engine-side pipe 81, and the other opening is the outer cylinder 91.
It is closed by. By doing so, the opening of the third passage 85 connecting the radiator-side pipe 82 is positioned at a distance from the engine-side pipe 81 as shown in FIG.
The radiator 71 is opened in the direction of 0 degrees.
Are positioned at right angles to the engine 6 as shown by the solid line in FIG. 3, and the engine 6 is opened.

As described above, since the radiator 71 is swingably supported by the support 9 and the cooling water passage 8 is formed in the support 9, the radiator 71 and the engine 6 are cleaned. When the radiator 71 is rotated, the front and rear cleaning of the radiator 71 can be easily performed by simply rotating the radiator 71, and the engine 6 can be opened to the outside. Maintenance inspections can be easily performed. Further, since the cooling water passage 8 is formed in the support 9, even if the radiator 71 swings, the cooling water passage 8 does not hinder the swing.

In the embodiment, the radiator 71
Is supported on the support 9 by the radiator-side pipe 82, but a support plate having the same size as the lower surface of the radiator 71 is provided below the radiator 71 in order to improve the support strength. Alternatively, one end of the support plate may be fixed to the shaft 92 of the support 9. At this time, a cutout portion is formed in the outer cylinder 91 in the circumferential direction so that the support plate can swing together with the radiator 71, and the support plate is attached to the shaft portion 92 through the cutout portion. It is made to fix.

[0019]

[0020]

[0021]

As described above, according to the agricultural working machine of the present invention, the cooling water passage is divided into the engine-side passage connected to the engine and the radiator-side passage connected to the radiator. Has a cylindrical portion coupled to the dividing portion of the engine-side passage portion, and a shaft portion coupled to the dividing portion of the radiator-side passage portion. Since the portion and the radiator-side passage portion are rotatably supported so as to communicate with each other, the radiator can be swung about the support portion to the support without twisting the cooling water passage. Therefore, the durability of the cooling water passage can be improved, and further, since the cooling water passage is prevented from being twisted by using the support of the radiator, no special twist preventing measure is required, and the cost can be reduced. Moreover, since the cooling water passage can be formed so as to be a straight rod between the support and the engine and the radiator, the length of the cooling water passage with respect to the distance between the engine and the radiator can be shortened, and twisting can be prevented. The cost can be further reduced in combination with the fact that no countermeasure is required, and the protrusion of the cooling water passage to the outside of the engine and the radiator can be avoided. When it moves, the cooling water passage does not hinder the swing. Further, when cleaning or performing maintenance and inspection of the radiator and the engine, the front and rear cleaning of the radiator can be easily performed only by rotating the radiator without removing the radiator, and the engine can be externally mounted. Since it can be opened, maintenance and inspection of the engine can be easily performed.

[Brief description of the drawings]

FIG. 1 is a plan view of a combine showing an embodiment of a farm work machine according to the present invention.

FIG. 2 is a side view of the combine.

FIG. 3 is a top view of the engine and the radiator according to the present invention.

FIG. 4 is a side view of the engine and the radiator according to the present invention.

FIG. 5 is a partially cut-away longitudinal sectional view of a support when the radiator according to the present invention is arranged in parallel with an engine.

FIG. 6 is a sectional view taken along line AA in FIG. 5;

FIG. 7 is a sectional view taken along the line BB in FIG. 5;

FIG. 8 shows a radiator according to the present invention,
FIG. 5 is a partially cutaway vertical cross-sectional view of the support when the support is turned to a degree position.

FIG. 9 is a sectional view taken along the line AA in FIG. 8;

FIG. 10 is a sectional view taken along the line BB in FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Airframe 6 Engine 71 Radiator 8 Cooling water passage 9 Support body 91 Cylindrical part 92 Shaft part

Claims (1)

(57) [Scope of request for utility model registration] 1. An agricultural work machine in which a radiator connected to an engine via a cooling water passage is swingably supported via a support, wherein the cooling water passage is an engine-side passage portion connected to the engine. And a radiator-side passage portion connected to the radiator, wherein the support is coupled to a tubular portion coupled to a division portion of the engine-side passage portion, and coupled to a division portion of the radiator-side passage portion. An agricultural working machine, comprising: a shaft portion, which is rotatably supported by the tubular portion so that the engine-side passage portion and the radiator-side passage portion communicate with each other.