HYDRAULIC REACTION DAMPER FOR ABSORBING REPULSIVE IMPACT BY CONVERTING REPULSIVE SHOCK INTO HYDRAULIC PRESSURE AFTER STRIKING

摘要

PURPOSE: A hydraulic repulsive impact absorbing reaction damper is provided to prevent wear and breakage of parts around the striking unit, and to improve the durability of the striking unit by directly installing the hydraulic repulsive impact reaction damper in the hydraulic striking unit with simple structure and absorbing repulsive impact in striking. CONSTITUTION: A striking unit is operated by supplying hydraulic pressure, and a bush(3) and a shank(2) or rod are pushed by moving a damping piston(6) forward. The damping piston is moved backward to transmit striking energy to a work piece and push the bush by the rod or the shank in striking the rod or the shank by a ram(4). Actuating fluid is discharged from the hydraulic chamber through a hydraulic pipe(8) as much as the space contracted in moving the damping piston backward, and stored in an accumulator(5). Repulsive impact energy is converted into hydraulic energy and absorbed, and impact absorption is finished by restoring the bush in moving the damping piston forward.