JPH0221352Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a tank arrangement structure for hydraulic oil of a hydraulic motor in a tractor-mounted working machine driven by a hydraulic motor.

(Prior Art) In a tractor to which a working machine driven by a hydraulic motor is mounted, a tank for operating oil of the hydraulic motor is disposed at the rear of the vehicle body.

(Problem that the invention attempts to solve) In addition to the working equipment driven by a hydraulic motor, a working equipment driven by a PTO shaft is mounted on the rear of the vehicle body.In this case, an oil tank is installed at the rear of the vehicle body. If there is one, it will get in the way, so you have to remove it. Therefore, it took time and effort to attach and detach the oil tank, resulting in poor workability. Furthermore, if the oil tank is placed at the front of the vehicle body, the oil tank will protrude significantly forward, increasing the risk of collision with obstacles and worsening running and turning performance.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems by utilizing the fact that in a tractor, the area above the front wheels protruding from the side of the vehicle body is a dead space.

(Means for Solving the Problems) The present invention solves the problems of the prior art by using a working machine 8 driven by a hydraulic motor 11.
In the tractor 1 to which the hydraulic motor 1 is mounted,
One working oil tank 15 is disposed in a space above the front wheel 2 protruding from the side of the vehicle body.

(Function) Since the tank 15 is arranged in the space above the front wheels 2 that protrude from the side of the vehicle body, it does not interfere with the working machine mounted at the rear of the tractor 1. Further, the oil tank 15 can be prevented from protruding forward of the vehicle body, and the risk of colliding with an obstacle will not increase.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In the figure, 1 is a tractor with front wheels 2,
The vehicle includes a rear wheel 3, a fender 4, a bonnet 5, a body frame 6, and the like. In addition, the front end of the vehicle is equipped with a PTO shaft 7, and the rear end is also equipped with a PTO shaft (not shown).
It is equipped with

8 is a gigantic mower, and three units are installed on both sides of the vehicle body and at the rear. These gearing motors 8 include a rotary blade 10 supported between a pair of side plates 9, a frame 11 that covers the top of the rotary blade 10, and a hydraulic motor 11 attached to the side of the side plate 9 to drive the rotary blade 10. This is a well-known feature. The gear mowers 8 on both sides of the vehicle body are connected to brackets 12 protruding from both sides of the vehicle body so as to be swingable about the longitudinal axis 13.
The gearing mower 8 at the rear of the vehicle body is also pivotally mounted to the rear end of the vehicle body via a mounting device 14.

Reference numeral 15 denotes an oil tank, which is arranged in a space above the right front wheel 2 protruding from the side of the vehicle body.
The oil tank 15 stores operating oil for the hydraulic motor 11, and is fixed on a pedestal 16 that is attached to the vehicle body frame 10 and projects laterally.

An oil filter 17 is attached to the rear end of the oil tank 15, and an oil cooler 18 is fixed on a pedestal 16 at the front. Reference numeral 19 denotes a dust-proof wire mesh for the oil cooler 18, which covers the front, upper, left and right sides of the oil cooler 19, and has a rear opening that fits over the front of the oil tank 15. and,
The front lower end of the wire mesh 19 is attached to the pedestal 16 so as to be swingable about the left and right shafts 23, and the oil cooler 18 can be cleaned by swinging it as shown by the chain line in FIG. In addition, a leaf spring 2 is attached to the top surface of the wire mesh 19.
0 is attached and when it is externally fitted onto the front part of the oil tank 15, it is pressed into engagement with the locking part 21 on the upper surface of the oil tank 15, and the natural rocking of the wire mesh 19 is prevented.

A pump 22 is attached to the front end of the vehicle body frame 6 and is connected and driven by the PTO shaft 7.
Oil is circulated between the oil tank 15, the hydraulic motor 11, the oil filter 17, and the oil cooler 18 via piping (not shown).

According to the above embodiment, since the tank 15 is disposed in the space above the front wheels 2 protruding from the side of the vehicle body, the tank 15 is driven by a PTO shaft of another rotary device or the like at the rear of the tractor 1 instead of the gearing mower 8. Even when a working machine is attached, the tank 15 does not get in the way, so there is no need to remove the tank 15, resulting in good work efficiency. In addition, the oil tank 15 is prevented from protruding significantly to the front of the vehicle body, and the risk of collision with an obstacle is not increased and the running and turning performance is not deteriorated.

In the above embodiment, a gearing mower is used as an example of the working machine 8 driven by the hydraulic motor 11, but the present invention is not limited to this.

(Effects of the invention) According to the invention, since the hydraulic oil tank for the hydraulic motor that drives the working machine is placed in the space above the front wheels that protrude from the side of the vehicle body,
Even if a working machine connected to the PTO shaft is attached to the rear of the tractor, there is no need to remove the tank and work efficiency will not deteriorate. Furthermore, the tank is prevented from protruding significantly to the front of the vehicle body, reducing the risk of collision with obstacles and preventing deterioration of running and turning performance.

[Brief explanation of drawings]

FIG. 1 is a plan view of a tractor equipped with a gearing mower according to an embodiment of the present invention, and FIG. 2 is a side view of the main parts thereof. DESCRIPTION OF SYMBOLS 1... Tractor, 2... Front wheel, 8... Gearing mower (work machine), 11... Hydraulic motor, 15...
...Oil tank.

Claims (1)

[Scope of utility model registration request] A tractor 1 equipped with a working machine 8 driven by a hydraulic motor 11 is characterized in that a tank 15 for the working oil of the hydraulic motor 11 is arranged in a space above the front wheel 2 protruding from the side of the vehicle body. Oil tank arrangement structure for tractor-mounted work equipment.