JPH03169926A - Hydraulic oil tank device of extremely small type shovel car - Google Patents

Abstract

PURPOSE:To simplify pipes of a hydraulic system, by arranging an oil tank between crawler frames and placing a hydraulic valve and a hydraulic pump connected thereto by a pipe, on the oil tank and further, making it possible to adjust the positional relation of these parts. CONSTITUTION:Crawler frames 5, 5 are arranged at the lower part of the both right and left ends of the upper frame 2 in a shovel car. And an oil tank 11 is equipped between the crawler frames 5, 5. And further, a hydraulic valve 16 is fitted thereon and a hydraulic pump 12 is installed thereon as well in front of a mission case 6. The hydraulic valve 16 and the hydraulic pump 12 are connected by pipes 17, 17. The position, posture, and height of these hydraulic valve 16, hydraulic pump 12, a battery 25 and others are regulated by means of bases 26, 27, 28, if necessary. In this way, pipes in the hydraulic system can be simplified and the shovel car can be minimized.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a hydraulic oil tank device for an ultra-compact excavator car, and particularly for an ultra-compact excavator car to reduce the size of the vehicle body. This invention relates to a hydraulic oil tank device.

[Prior Art] Conventionally, there has been no ultra-compact excavator car that can perform excavation work in a narrow space with obstacles erected on the left and right sides. When manufacturing this type of ultra-compact excavator car, in order to make the car body smaller, there was no driver's seat, and the operator operated it from the rear of the car body, and an oil tank was placed between the crawler frames. It is conceivable that the boom be rotated at the front end of the vehicle body.

[Problems to be Solved by the Invention] The above-mentioned ultra-compact excavator car is required to have a compact vehicle body in order to enable work in narrow spaces, and the interior of the vehicle body must be simplified as much as possible.

Therefore, a technical problem arises that must be solved in order to simplify the structure of the hydraulic system and make the vehicle body as compact as possible, and the present invention aims to solve this problem.

[Means for Solving the Problems] The present invention was proposed to achieve the above object, and provides an ultra-compact excavator car in which a hydraulic oil tank of the excavator car is disposed between crawler frames. It is an object of the present invention to provide a hydraulic oil tank device for a micro excavator car, characterized in that a hydraulic valve and a hydraulic bomb are mounted on the upper surface of the hydraulic oil tank.

In this invention, a hydraulic valve and a hydraulic bomb are mounted on an oil tank disposed between the crawler frames of an ultra-compact excavator car, so that their mutual positions are adjacent to each other and the piping can be shortened. Furthermore, since the hydraulic valve and the hydraulic bomb are attached to the upper surface of the oil tank, the number of these attachment members can be reduced and the structure of the frame can be simplified.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4 of the attached drawings. In the figure, (1) is an ultra-compact excavator car; As shown in the figure, attach the work boom (3) attachment part (
4) is provided protrudingly, and crawler frames (5×5) are provided below on both left and right sides of the upper frame (2). A mission case (6) is installed below the rear part of the Atsupa frame (2), and drive subrockets (7) (7) are provided on both the left and right sides of the mission case (6), and drive subrockets (7) are installed on both sides of the mission case (6). A rear end portion of the crawler frame (5) (5) is connected to the crawler frame (5). Furthermore, driven wheels (8) (8) are pivotally attached to the front ends of the left and right crawler frames (5) (5), and the crawler (8) is mounted between the drive subrockets (7) (7).
9) Wrap (9). And the mission case (6
) is mounted on top of the engine 00). Further, an oil tank 00 is disposed between the crawler frames (5) (5).

On the other hand, a hydraulic bomb (0) is placed on the upper surface of the oil tank 00 and in front of the transmission case (6). The oil is transmitted to the bomb booster 09 via a pulley (B) (Y), and is configured to be able to pump oil by rotation of the bomb pulley 09.Furthermore, the oil tank θ1 is located in front of the hydraulic bomb 0 and is connected to the oil tank θ1. A hydraulic valve OQ is mounted on the upper surface of the hydraulic bomb O and the hydraulic valve O is connected to the hydraulic bomb O by a vibrator. (O(d)Ol)@ etc. is activated to rotate the packet (to), arm (2), and boom (3), and the boom (3) is rotated at the mounting portion (7l). It is configured as follows.

Also, a battery (2) is installed on the side of the hydraulic bomb (6).
is included. The hydraulic bomb (L5 and hydraulic valve (
lE9 and battery (d) are the oil tank 01)
They are mounted and fixed on respective bases (4) @ (self) shaped on the top surface of the . The base (4) of the hydraulic bomb 0 is formed in a U-shape when viewed from the side, and is fixed to the rear edge of the upper surface of the oil tank θ0. Then, attach the bolt etc. to the base (
4) A hydraulic bomb (■) is fixed on the top. On the other hand, the base ←b of the hydraulic valve Oo is erected at the front part of the oil tank 00, slanting slightly backward, and the base (6) The hydraulic valve 00 fixed to the hood is installed diagonally parallel to the bonnet ■.The base (support) of the battery (d) is slightly higher than the hydraulic pump (Ll), and the battery (d) is fixed to the By providing these bases ωthω, the positions, postures, heights, etc. of the hydraulic pump 0, the hydraulic valve (10, the battery (d), etc.) can be adjusted.

On the other hand, an exhaust pipe (1) is fixedly installed on one side of the engine OΦ, and as shown in FIGS. ) is bent downward and further extends forward along the vehicle body. In addition, the exhaust pipe (1) is connected to a muffler 00 fixedly installed under the front of the upper frame (2). or,
The exhaust port of the muffler 00 is opened toward the front. Therefore, exhaust gas is not ejected directly to the worker standing behind the ultra-compact excavator (00).In addition, the heat and noise generated by the muffler 00 will affect the worker. This prevents IF.shi and improves the working environment.

Note that this invention can be modified in various ways without departing from the spirit of the invention, and it goes without saying that this invention extends to such modifications.

"Effect 1 of the Invention As detailed in the above-mentioned embodiment, this invention includes a hydraulic valve and a hydraulic bomb mounted on an oil tank provided between crawler frames. The relative positions of the hydraulic cylinders are adjacent to each other, simplifying the piping of the hydraulic system.Also, since the hydraulic valve and hydraulic cylinder are mounted on the top of the oil tank, the number of mounting parts for these can be reduced, simplifying the frame structure. turned into
This can contribute to downsizing of excavators.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially cutaway side view of an ultra-compact excavator, Fig. 2 is a partially cutaway plan view of the same, Fig. 3 is a rear view of the same, and Fig. 4 is an ultra-compact excavator. This is a partially cutaway side view of a small excavator car, particularly showing how the muffler and exhaust pipe are installed. (1)・・・Ultra small excavator (5)・・・
...Crawler frame 01) ...Hydraulic oil tank (self) ...Hydraulic bomb OQ ...Hydraulic valve

Claims (1)

[Claims] An ultra-compact excavator car in which a hydraulic oil tank for an excavator car is disposed between crawler frames, characterized in that a hydraulic valve and a hydraulic pump are mounted on the upper surface of the hydraulic oil tank. Hydraulic oil tank equipment.