Cable automatic take-up control valve

• Main Authors: WANG TIANWU, WANG WEI, LI YONGAN, DING YONGCHENG, GUO ZHIFU, YANG JINGWEI, ZUO GANGYONG, BAI GUIWEN
• Format: Patent
• Language: Chinese; English
• Published: 24.04.2013
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The utility model relates to the technical field of hydraulic control of coal mine equipment and particularly relates to a cable automatic take-up control valve. The cable automatic take-up control valve solves the problems that an existing cable automatic take-up hydraulic control mode is complex in pipeline, easy to leak, or low in reliability, short in service life and high in cost. The cable automatic take-up control valve comprises a valve block, a one-way valve, a first pilot operated directional control valve, a first safety valve, a second pilot operated directional control valve, and a second safety valve. Each valve piece is inserted into the valve block through threads. The first safety valve and the second safety valve are straight moving type overflow valves. The first pilot operated directional control valve and the second pilot operated directional control valve are two-way and two-position control valves. The cable automatic take-up control valve has the advantages of being small in leakage, l