HYDRAULIC HAMMER Russian patent published in 2017 - IPC B25D9/00 B25D17/02 B25D9/16 

FIELD: construction.

SUBSTANCE: hydraulic hammer contains a carcase with a pressure and drain channels and with a reciprocating motion of the gauging board mounted therein for transmitting a force pulse to the working tool. The gauging board has a pressure channel, an overflow channel, a drain channel and a control channel. At the top of the gauging board is a hole in which the control valve is located. The control valve contains control channels and forms a control cavity with a gauging board. The gauging board forms a pressure cavity, an overflow cavity and a drain cavity with the carcase. The pressure cavity is connected to the pressure line through the pressure channel of the carcase. Drain cavity is connected to a drain line through the drain channel of the carcase.

EFFECT: simplified hydraulic hammer's design and increased reliability of its work.

11 cl, 1 dwg