JPH10278600A - Work vehicle fuel tank support configuration - Google Patents

Abstract

(57) [Summary] To support a fuel tank on a chassis, the number of parts is reduced, and the fuel tank is stably provided. SOLUTION: In providing a fuel tank 3 on a chassis 2 having a traveling device 1, a part of the chassis 2 is constituted, and
A main frame 4 that constitutes the front-rear direction of the chassis 2,
A fuel tank supporting structure for a working vehicle is characterized in that only the fuel tank 3 is mounted on a frame 5 that exclusively supports the fuel tank.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel tank supporting structure for a working vehicle.

[0002]

2. Description of the Related Art A fuel tank supporting structure of a conventional working vehicle is as follows.
Instead of being mounted on the main frame, two frames dedicated to supporting the fuel tank were provided, and the fuel tank was mounted thereon.

[0003]

In the fuel tank supporting structure for a working vehicle as described above, two frames are provided exclusively for supporting the fuel tank, so that the number of parts increases and the cost increases. A point had occurred. An object of the present invention is to provide a fuel tank support structure for a work vehicle that solves the above-mentioned problems.

[0004]

The above object of the present invention is achieved by the following constitution. That is, it is characterized in that it is configured to constitute a part of the chassis 2 and to be mounted on a main frame 4 which forms the front-back direction of the chassis 2 and on a frame 5 which exclusively supports the fuel tank 3 only. It is a fuel tank support configuration of the working vehicle.

[0005]

Embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a fuel tank supporting structure of a working vehicle embodying the present invention. In the present embodiment, a description will be given of a combine, which is an agricultural machine, that cuts a culm planted in a field and performs threshing and sorting.

[0006] In front of the undercarriage 2 having the traveling device 1, a cutting device 6 for cutting the planted grain culm and transporting it to the rear, and a feed chain further rearward inheriting the grain culm transported from the cutting device 6. A supply / transport device 8 for transporting the paper 7 is provided. A threshing device 9 on the undercarriage 2 for threshing and sorting while transferring and conveying the grain stems conveyed from the supply and conveying device 8 by the feed chain 7, and a Glen tank for temporarily storing the grains that are threshing and sorted by the threshing device 9. 10 and an operation unit 11 are mounted.

[0007] When the work is started by running such a combine, the planted grain culm is cut off by the cutting device 6 and conveyed rearward. Then, it is taken over by the starting end of the feed chain 7 and threshed while being conveyed. Threshing is performed by the device 9. The grains selected by threshing by the threshing device 9 are transported into a Glen tank 10 and temporarily stored therein. As described above, the fuel tank 3 is necessary for running the combine, but when the fuel tank 3 is provided, the main frame 4 which is formed in a part of the chassis 2 in the front-rear direction,
The configuration is such that the fuel tank 3 is mounted on a single frame 5 that supports the fuel tank 3 exclusively. The frame 5 is fixed to the rear horizontal frame 2b and the front horizontal frame 5a by welding, but may be bolted.

Conventionally, two frames for supporting the fuel tank 3 exclusively on the chassis 2 are formed in the front-rear direction, and are mounted on the two frames. Therefore, an extra frame is required. However, the use of the main frame 4 reduces the number of frames by one. Thereby, the number of parts can be reduced. Further, since the main frame 4 is an important part constituting the chassis 2, its strength is set to be high, so that the fuel tank 3 can be stably supported. Further, since the fuel tank 3 is provided at the rear of the chassis 2, that is, at the rear of the combine, the fuel tank 3 can be attached and detached to facilitate maintenance management. The mounting and dismounting structure of the fuel tank 3 is shown in FIG. 3 and is fixed by an elastic band 12.

Also, since the frame 5 is on the crawler 13, the crawler 13 may flutter and come into contact with the frame 5 due to a change in the traveling environment. In this case, the crawler 13 may be damaged by the frame 5. 3, the front end of the frame 5 has a shape having a rounded portion 14 bent upward. This can prevent the crawler 13 from being damaged.

Next, FIG. 4 will be described. Frame 5
Is composed of a square tube as shown. In the related art, since the shape was “U”, there was an edge on the crawler 13 side, and the crawler 13 was damaged by hitting the edge. Therefore, by using a square tube, the edge is eliminated, and even if the crawler 13 contacts the frame 5, damage can be prevented. Further, with this configuration, there is no problem even if the crawler 13 abuts the frame 5 to some extent, so that the frame 5 can be provided close to the crawler 13. The fuel tank 3 can be enlarged by this amount, so that the fuel capacity can be increased.

The traveling device 1 will be described in detail.
The traveling device 1 includes an endless belt-shaped crawler 13, a driving sprocket 13 for rotating the crawler 13, a plurality of grounding wheels 14 provided at predetermined intervals to ground the crawler 13 on the ground, , A track roller frame 16 that supports the ground roller 14 and the movable roller 15, a moving sprocket 17 that applies tension to the crawler 13,
And a supporting wheel 19 for preventing the crawler 13 from hanging down. The same configuration is provided in a pair on the left and right.

Next, a description will be given of the front-rear inclining means 3 for inclining the chassis 2 in the front-rear direction. One end of the connecting arm 20 is connected to a pitching arm 21 by a pin 22, and the pitching arm 21 is loosely connected to the chassis 2 by a shaft 23. Specifically, the shaft 23 is rotatably supported by a running frame 24 by a bearing 25. Pitching arm 21 on the right side in the forward direction of the combine
Only the protrusion protrudes upward (projection 21a), and the end of the piston rod 27 of the pitching hydraulic cylinder 26 that is loosely fitted to the chassis 2 is loosely fitted.

When the piston rod 27 is extended, the pitching arm 21 rotates clockwise about the shaft 23 as a fulcrum. Since the pin 22 also rotates clockwise together with the pitching arm 21, the connecting arm 20, the rear shaft 28, the rear arm 29, and the pin 30 move up. Since the pin 30 raises the rear part of the track roller frame 16, the distance between the rear part of the chassis 2 and the crawler 13 is shortened, and the rear slope is lowered, that is, the chassis 2 (entire combine) is tilted forward. . FIG. 4 shows a view of this front ascending.

When the piston rod 27 is shortened, the above-described movement is reversed, the distance between the rear portion of the chassis 2 and the crawler 13 increases, and the rearward upward inclination, that is, the chassis 2 (entire combine) has a forward downward inclination. Such a pitching movement is basically for making the inclination of the combine in the front-back direction substantially horizontal. When the field scene is a wetland,
The combine is also inclined in the front-rear direction to prevent this. The specific movement is the inclination sensor 31
Detects the movement of the chassis 2 (entire combine) in the front-rear direction, and makes the vehicle horizontal. For example, when the chassis 2 is tilted forward together with the traveling device 1, the piston rod 27 of the pitching hydraulic cylinder 26 is extended, The undercarriage 2 (entire combine) is made horizontal as a forward rising slope.

When the chassis 2 is tilted rearward together with the traveling device 1, the piston rod 27 of the pitching hydraulic cylinder 26 is shortened to move the rear portion of the chassis 2 upward with respect to the traveling device 1, thereby 2 (the whole combine) is made horizontal. The field scene where the combine runs may be a dry field or a wet field. A particular problem is in wetlands. Therefore, the operation unit 11 is provided with a dry / wetland state selection switch 44 for selecting whether the field scene is a dryland state or a wetland state. Dry / wetland state selection switch 4
If the operator selects the wetland condition at 4, the rolling function and the pitching function described above are operated to automatically hold the chassis 2 horizontally. The detection of the horizontal state is detected by an inclination sensor 39 installed on the chassis 2.

A further problem is encountered during reverse travel. At this time, the front part of the combine falls down due to the driving reaction force of the traveling device 1. In particular, since the harvesting device 6 projects forward of the undercarriage 2 of the combine, the lower portion of the harvesting device 6 may be damaged by contact with a field scene.
Therefore, when the vehicle is moving backward in a wet field, the above-described pitching function is operated to tilt the chassis 2 forward and upward.

Thus, when the wetland state is selected by the wet / wetland state selection switch 44, the horizontal and horizontal front and rear of the chassis 2 are automatically executed, and further, the vehicle chassis 2 is positioned in front of the chassis 2 during reverse travel. Since the upward inclination is performed, the ride comfort of the operator is improved, and the breaker 6 can be prevented from being damaged. Conventionally, in wetland conditions, the front and rear chassis 2
Is not automatically executed and is operated by another switch, which is troublesome. However, the present invention improves the operability.

[0018]

As described above, according to the present invention, when the fuel tank 3 is provided, the fuel tank 3 constitutes a part of the chassis 2 and only the fuel tank 3 on the main frame 4 constituting the front-rear direction of the chassis 2. Since the main frame 4 is used, the number of frames is reduced by one because it is configured to be mounted on the frame 5 exclusively supported. Thereby, the number of parts can be reduced.

Since the main frame 4 is an important part of the chassis 2, its strength is set to be high, so that the fuel tank 3 can be stably supported.

[Brief description of the drawings]

FIG. 1 is a left side view of the combine.

FIG. 2 is a perspective view

FIG. 3 is a partial left side view.

FIG. 4 is a rear view

FIG. 5 is a left side view.

FIG. 6 is a plan view

FIG. 7 is a left side view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Running device, 2 ... chassis, 2a ... side frame, 2b ... side frame, 3 ... fuel tank, 4 ... main frame, 5 ...
Frame, 6: Harvesting device, 7: Feed chain, 8: Feeding / conveying device, 9: Threshing device, 10: Glen tank, 11
... Operation unit, 12 band, 13 crawler, 14 roundness, 15 lifting / lowering means, 16 front / back inclining means, 17 driving sprocket, 18 ground contact rolling wheel, 19 movable movable wheel, 20
... track roller frame, 21 ... moving sprocket,
22 adjustment device, 23 support wheel, 24 front arm,
25 ... pin, 26 ... rear arm, 27 ... pin, 28 ... support base, 29 ... front rolling shaft, 30 ... arm, 31 ...
Connecting arm, 32 ... rear rolling shaft, 33 ... arm,
34 ... connecting rod, 35 ... hydraulic cylinder, 35a ... plate, 35b ... plate, 36 ... piston rod, 37
... Pitching arm, 37a ... Projection, 38 ... Pitching hydraulic cylinder, 39 ... Inclination sensor, 40 ... Pin, 41
... shaft, 42 ... main frame, 43 ... piston rod,
44 ... Dry / wetland state selection switch.

Claims (1)

[Claims] 1. When a fuel tank 3 is provided on a chassis 2 having a traveling device 1, a part of the chassis 2 is formed, and
A main frame 4 that constitutes the front-rear direction of the chassis 2,
A fuel tank support structure for a work vehicle, wherein the fuel tank 3 is mounted on a frame 5 that exclusively supports the fuel tank 3.