SOUND-PROOFING APPARATUS OF THE MACHINE FOR PUNCHING ROCK

摘要

The present invention is a soundproofing type rock drill that can reduce the impact noise generated when the impact piston hits the top of a tool in a rock drill used when drilling or breaking a rock in the ground excavation work in civil engineering work. Apparatus comprising: a cylinder mounted on an upper side of a rock drill head, a piston reciprocating in an operating space of an upper portion of the rock drill head, and an upper striking portion protruding long toward an operating space to receive a strike pressure from the piston. In the rock drilling machine consisting of a striking tool, is fixed while wrapping the outer peripheral surface of the upper striking portion of the striking tool r and a guide cylinder port protruding long into the inner upper operating space of the rock drill head, and inserted into the inner side of the guide cylinder hole to strike the piston It is equipped with a sound absorbing member that transmits pressure to the blow tool and reduces noise at the same time. As to