KR20210143071A - Hydraulic Part Mounting Structure for Control of Work Unit of Heavy Equipment - Google Patents

Abstract

The present invention relates to a hydraulic component mounting structure for controlling a work apparatus of heavy equipment. According to the disclosed hydraulic component mounting structure, a lead time in which a main control valve for controlling a hydraulic oil supplied from a hydraulic pump to drive a work apparatus such as an excavator and the like, an accessory valve, and various valve blocks (hereinafter referred to as hydraulic parts) connecting each valve as a hydraulic pipe (hydraulic hose or pipe) are mounted and assembled on an upper revolving body can be shortened. The hydraulic component mounting structure for controlling the work apparatus of the heavy equipment of the present invention comprises: an undercarriage; an upper slewing body; an operating compartment cab and an engine compartment; a work apparatus; a main control valve; an accessory valve; and a sub plate.

Description

Hydraulic Part Mounting Structure for Control of Work Unit of Heavy Equipment}

The present invention provides a main control valve (MCV) that controls hydraulic oil supplied from a hydraulic pump to drive a working device such as an excavator, an optional valve, and each valve as a hydraulic pipe (hydraulic hose or pipe). It relates to a hydraulic component mounting structure for controlling a working device of a heavy machine that can shorten a lead time for mounting and assembling various valve blocks (hereinafter referred to as "hydraulic parts") to an upper revolving body.

The hydraulic component mounting structure for controlling the working device of the heavy equipment according to the prior art includes the main control valve 12 (formed in a block structure) including each spool for controlling the hydraulic oil supplied to the working device of the upper revolving body 2 Installed in the center of the rear, the option valve 15 including a solenoid valve and the like is installed in a space adjacent to the main control valve (12). The main control valve 12 and the option valve 15 are jointed by a hydraulic hose (s) or a pipe. At this time, the option valve 15 includes a selector valve, a solenoid valve, a shuttle valve, a valve block 16 (joint block, drain block), a proportional control valve, etc. for controlling the hydraulic oil supplied to the main control valve 12 After installing the main control valve 12 and the option valve 15 at a predetermined position of the upper revolving body 2 mounted on the assembly line of the equipment, respectively, these valves are connected as a hydraulic hose (s) or a pipe. Connect. That is, the operation of installing the hydraulic parts to the upper revolving body (2)

Since the process and the hydraulic component are separated into a working process of joint connection as a hydraulic hose (s) (consisting of a dual working process), the assembling working time is increased, thereby increasing the manufacturing cost.

In an embodiment of the present invention, after mounting and assembling hydraulic parts on a separate sub-plate, the sub-plate is mounted on the upper slewing body, thereby reducing the working time of mounting and assembling the hydraulic parts on the upper slewing body to manufacture equipment. It is related to the hydraulic component mounting structure for controlling the working device of heavy equipment that reduces the cost and improves the assembly and workability through easy work. As it takes a lot of time to assemble heavy equipment, it is intended to solve the problem that the overall cost of manufacturing equipment rises.

Means for achieving the object of the present invention are as follows. A main control valve and an option valve, and a valve block connecting the main control valve and the option valve with a hydraulic pipe are installed. After installing the valve and valve block and connecting them as a hydraulic pipe, the sub-plate is mounted on the upper revolving body.

As described above, the hydraulic component mounting structure for controlling the working device of heavy equipment according to an embodiment of the present invention has the following advantages. As the hydraulic parts are mounted and assembled on a separate sub-plate and then the sub-plate is mounted on the upper slewing body, the work time for mounting and assembling hydraulic parts on the upper slewing body is shortened, thereby reducing the cost of manufacturing equipment and reducing the The sub-plate can be easily mounted on the upper revolving body in space, improving assembly and workability.

Hydraulic parts (main control valve 12, option valve 15, valve block 16a, 16b, etc.) that supply hydraulic oil from the hydraulic pump to the working device 11 or control it to be returned to the hydraulic tank After installation on the plate 17, the main control valve 12, the option valve 15, and the valve blocks 16a, 16b are jointly connected as a hydraulic hose (s) or a pipe. That is, the working process of installing the hydraulic parts 12, 15, 16a, 16b on the sub-plate and the working process of connecting them as a hydraulic hose (s) or a pipe are made by a single working process. As a post hydraulic hose (s) mounted at a predetermined position of the sub-plate, the sub-plate to which various valves connected by joints are mounted is mounted at a predetermined position of the upper revolving body, so the work of installing and assembling hydraulic parts to the upper revolving body is completed. do.

Claims (1)

lower running body; an upper revolving body rotatably mounted on the lower traveling body; a cab and engine compartment mounted on the upper revolving body; a working device mounted on the upper revolving body and including a boom, an arm and a bucket driven by hydraulic oil supplied from a hydraulic cylinder, respectively; a main control valve which is switched according to an operation signal from the operation lever, and includes each spool for controlling the supply amount and flow direction of the hydraulic oil supplied to the corresponding working device during switching; an option valve for controlling the hydraulic oil supplied to the main control valve; And the main control valve and the option valve, and a valve block jointly connecting the main control valve and the option valve with a hydraulic pipe is installed, including a subplate mounted at a predetermined position of the upper revolving body, On the subplate After installing the main control valve, the option valve and the valve block, and connecting them as a hydraulic pipe, the sub-plate is mounted on the upper revolving body.