Mechanical locking device of hydraulic oil cylinder

• Main Authors: LYU LINHONG, LIU WENXIN, SON SANG-JUNG
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2024
• 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 discloses a hydraulic oil cylinder mechanical locking device which comprises a supporting oil cylinder barrel and a supporting oil cylinder piston rod, and the surface of the supporting oil cylinder piston rod is connected with the inner wall of the supporting oil cylinder barrel in a sliding mode. By arranging the belleville spring, the piston block and the friction block are pushed to be tightly pressed on the surface of the piston rod of the supporting oil cylinder by means of compression stress of the belleville spring, braking force is formed, the piston rod of the supporting oil cylinder is prevented from moving downwards, and the problem that on equipment using the hydraulic supporting oil cylinder as a support, braking force cannot be generated is solved. A hydraulic supporting oil cylinder needs to stay at a set position for a long time, in order to achieve pressure maintaining of the hydraulic oil cylinder, an oil return pipeline is closed through a hydraulic lock, a valve and the