HYDRAULIC HAMMER Russian patent published in 1994 - IPC

FIELD: mining art. SUBSTANCE: the hydraulic hammer has a delivery valve spring-loaded relative to the seat and mounted in a hollow body above an adapter, pusher. The pusher is spring-loaded from the top by a piston with a hollow rod. The piston is located on the rod. The lower end of the rod is fixed on the upper end of the delivery valve for restricted axial movement. One end of the pusher is connected to the block head valve, and the other is located inside the delivery valve for restricted axial movement. Channels are provided in the seat of the delivery valve and in the bottom part of the rod for passage of flushing fluid. In the top part of the body provision is made for radial channels for communication of the space above the piston with the hole clearance. EFFECT: facilitated procedure. 4 dwg