| 摘要 |
A hydraulic control valve for a hydraulic fluid supplement is provided to improve productivity, to simplify a structure, to be easily installed by replacing divided spool cap with a single type spool cap. A hydraulic control valve for a hydraulic fluid supplement includes a valve block(10), a pair of spools(20), a finish spool cap(30), and a single type spool cap(40). The valve block includes hydraulic fluid paths(12) and a pair of spool holes(13). The hydraulic fluid paths is opened and closed by a rod check valve(11) and supplies high pressure hydraulic fluid to each of actuators. The spool holes are connected with the hydraulic fluid paths. The spools are inserted in the spool holes and moves up and down by the hydraulic fluid supplied during an operation of a hydraulic joystick. The finish spool cap seals a lower part of the spools. The single type spool cap is positioned in an opposite side to the finish spool cap and is installed on the valve block in order to embrace upper ends of the spools. |
