HYDRAULIC HAMMER Russian patent published in 2008 - IPC E02D7/10 

FIELD: building.

SUBSTANCE: hydraulic hammer contains a tubular frame, a percussive mass arranged inside the frame and capable of reciprocating movement along the frame and a hydraulic cylinder to reallocate the percussive mass fixed at the frame and incorporating a piston to a rod jointed with the percussive mass. On the inner side of the frame, along its generating line, two or more wading rods, which contact with the percussive mass and function as runner slides for its reciprocating movement, are fixed.

EFFECT: simplified design and improved fabric ability of the hydraulic hammer; decreased production costs.

6 cl, 3 dwg