JPH0627463U - Arrangement structure of hydraulic valve in work vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] To eliminate the inconvenience that the operating noise and heat generated by the hydraulic valve directly affect the driver's seat, and to significantly improve the maintainability of the hydraulic valve. [Configuration] Fuel tank 14 disposed on the side of the driver's seat 6
Is tilted, and a hydraulic valve 21 is disposed in the tank lower space exposed by tilting of the fuel tank 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an arrangement structure of hydraulic valves in a traveling vehicle such as a hydraulic shovel.

[0002]

[Problems to be Solved by Prior Art and Invention]

 Generally, working vehicles such as hydraulic shovels are equipped with hydraulic valves for operating and controlling hydraulic actuators such as a traveling hydraulic motor, a turning hydraulic motor, and a working hydraulic cylinder. Conventionally, however, the hydraulic valve has been installed in the space below the driver's seat, avoiding the positions where the engine, hydraulic oil tank, fuel tank, etc. are installed. The influence directly affects the driver's seat, especially the cabin type where the driver's seat is covered, the impact is greatly reduced and the comfortability is remarkably reduced. The fact is that they have to be removed and attached each time, and maintenance is inferior.

[0003]

[Means for Solving the Problems]

 The present invention was devised with the object of providing an arrangement structure of hydraulic valves in a working traveling vehicle that can eliminate these drawbacks in view of the above-mentioned circumstances. The fuel tank disposed in the fuel tank is configured to be tiltable, and a hydraulic valve is disposed in a space below the fuel tank exposed by tilting the fuel tank. With this configuration, the present invention eliminates the inconvenience that the operating noise and heat generated by the hydraulic valve directly affect the driver's seat, and significantly improves the maintainability of the hydraulic valve. It is a thing.

[0004]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a cabin-type hydraulic shovel, which comprises a crawler type traveling section 2, a swiveling section 3 supported above the traveling section 2 so as to be swivelable, and a swiveling section 3. It is composed of a working part 4 and the like connected to the front end, and each of the above parts is hydraulically operated by the power of an engine 5 mounted on the rear part of the swivel part 3. Is.

Reference numeral 6 denotes a driver's seat disposed in a leftwardly offset position of the revolving unit 3, that is, a space covered by the cabin C, and the driver's seat 6 stands on the floor plate 7 of the revolving unit 3. The seat stand 8 is attached to the upper end of the seat stand 8 so that the front and rear positions can be adjusted freely. The seat stand 8 can accommodate a grease gun 9 for lubrication. In other words, the seat stand 8 is formed in a box shape with an open rear surface so that a relatively long grease gun 9 can be stored therein, and a front opening has an inlet / outlet opening 8a that can be opened and closed by the lid 10. Although it is opened, a stand plate 11 for leaning and accommodating the grease gun 9 is installed in the seat stand 8. Then, the grease gun 9 leans backward and is stored while being fitted into the U-shaped groove 11a formed in the upper end portion of the stand plate 11. The elastic member 12 is attached to the edge of the groove 11a so as to be elastically supported. Reference numeral 13 is a knob provided on the lid body 10, and 13a is a locking plate for locking the lid body 10 in the closed position based on the turning operation of the knob 13.

On the other hand, 14 is a fuel tank which is erected on the right side of the driver's seat 6, that is, at the right end position of the swivel unit 3, and the fuel tank 14 is the injection unit 1 for injecting fuel. 4a, a fuel hose 15 for supplying fuel to the engine 5 and a drain hose 16 for discharging water accumulated at the bottom of the tank are connected, but the lower end of the tank outer plate is It is rotatably supported by the frame 3a of the revolving unit 3 via a hinge 17. That is, the fuel tank 14 is configured to be tiltable outward, and further, the engaging piece 18 projecting from the lower end portion of the fuel tank 14 and the hydraulic oil tank 19 behind the fuel tank project. Although it can be locked in a tilted position based on the engagement with the stopper piece 20 provided, the lower space of the fuel tank 14 is exposed in this locked state.

Further, reference numeral 21 denotes a hydraulic valve, which controls the hydraulic operation of the traveling section 2, the turning section 3, the working section 4 and the like. It is set in the space below the fuel tank 14. That is, the hydraulic valve 21 is arranged as far as possible from the driver's seat 6 and at a position where it can be easily exposed by the tilting operation of the fuel tank 14. Reference numeral 22 is a step cover that can be detached as required.

In the embodiment of the present invention constructed as described above, the hydraulic valve 21 is arranged in a space below the fuel tank 14 arranged laterally of the driver's seat 6. That is, since the hydraulic valve 21 that generates operating noise and heat is arranged at a position as far as possible from the driver's seat 6, the hydraulic valve 21 is arranged in the space below the driver's seat 6 as in the conventional hydraulic valve 21. It is possible to avoid the influence of operating noise and heat of the valve 21 from directly affecting the driver's seat 6, and as a result, the comfortability of the operator can be significantly improved without providing a sound insulating material or a heat insulating material around the driver's seat. You can

Moreover, since the fuel tank 14 can be tilted and the hydraulic valve 21 can be easily exposed on the basis of the tilt, there is no hindrance during inspection and maintenance of the hydraulic valve 21, and a floor plate or the like is not caused. Maintenance work can be significantly improved by eliminating the work of attaching and detaching.

Further, in the embodiment, since the grease gun 9 can be stored in the seat stand 8 in an elastically supported state, the grease gun 9 is stored around the driver's seat as in the conventional case. It is not possible to eliminate the inconvenience that the grease adheres, and it is also possible to eliminate the inconvenience that the grease gun 9 directly hits the iron plate or the like to make an unpleasant sound or peel off the coating.

It should be noted that the present invention is not limited to the above-described embodiment, and of course, as in the second embodiment shown in FIG. 8, for example, as shown in FIG. You can choose to do this. That is, in the second embodiment, the upper portion of the seat stand 8 is configured to be opened by sliding the driver's seat 6 rearward, and the stored items can be taken in and out through the opening. Since there is no need for a lid, there is an advantage that the number of parts can be reduced.

[0012]

[Operation effect]

 In short, since the present invention is constructed as described above, the hydraulic valve is arranged not in the space below the driver's seat as in the past, but in the space below the fuel tank arranged on the side of the driver's seat. Therefore, the hydraulic valve that generates operating noise and heat can be separated from the driver's seat as much as possible. As a result, operating noise and heat effects on the driver's seat can be effectively blocked without providing special sound insulation or heat insulation material around the driver's seat, which significantly improves the operability of the operator in the driver's seat. You can

Moreover, since the hydraulic valve is easily exposed by the tilting operation of the fuel tank, there is no inconvenience that the fuel tank is an obstacle and makes the maintenance of the hydraulic valve difficult. It is possible to significantly improve maintainability by eliminating the need for the troublesome work of attaching and detaching the floorboard one by one as in the past.

[Brief description of drawings]

FIG. 1 is a plan view of a hydraulic shovel.

FIG. 2 is a side view of the same.

FIG. 3 is a partially cutaway front view of a turning portion.

FIG. 4 is a side view of the same.

FIG. 5 is an internal plan view of a turning portion.

FIG. 6 is a front view of a driver's seat.

FIG. 7 is a side view of the same.

FIG. 8 is a side view of a driver's seat showing a second embodiment.

[Explanation of symbols]

 1 hydraulic shovel 2 traveling part 3 turning part 4 working part 6 driver's seat 14 fuel tank 21 hydraulic valve

Claims (1)

[Scope of utility model registration request] 1. A fuel tank arranged laterally of a driver's seat is configured to be tiltable, and a hydraulic valve is arranged in a space below the fuel tank exposed by tilting the fuel tank. Arrangement structure of hydraulic valves in a working vehicle.