| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to percussion tools, namely, hydraulic rock breakers. Proposed device comprises one-piece case with piston and piston rod, moving hammer, working tool and pressure conversion piston. Gas chamber is arranged between case, pressure conversion piston and hammer. Pressure conversion cylinder and compensation chamber are arranged between pressure conversion piston and piston rod. Connection channel is made between gas and compensation chambers. ^ EFFECT: decreased weight and sizes, smaller recoil pulses. ^ 6 cl, 3 dwg |
