PISTON OF HYDRAULIC BREAKER

摘要

PURPOSE: A piston of a hydraulic breaker is provided to reduce noise and vibration in a chisel hamming operation by manufacturing the piston with the material having different properties. CONSTITUTION: A piston of a hydraulic breaker comprises a piston body(110), a vibration-proof body(120), and an elastic body. The body of the piston comprises a vibration-proof chamber. The vibration-proof body is inserted in the vibration-proof chamber of the body of the piston. The vibration-proof body absorbs the noise and vibration generated when a piston strikes a chisel. The elastic body is combined in the bottom part of the vibration-proof body. The elastic body absorbs the noise and the vibration generated in the blow of the chisel.