Hydraulic hammer for breaking masonry etc. - has elastic sealing diaphragm for working chamber supplied with clear water

摘要

The hydraulic hammer is for breaking rock, masonry etc., having a seal (2), a striker piston (3), a guide housing (4) a chiesel (5), a valve housing with valve (6,8), a handle (10), and a hand trigger (11). The seal for the working chamber (1) comprises an elastic diaphragm (2). Energy is supplied at high frequency via clear water. The diaphragm can be secured between the guide and valve housings, and also to the striker piston. It, together with the part in contact with the water, can be of rustproof material. ADVANTAGE - Good sealing and avoids need for hydraulic oil.