PNEUMATIC HAMMER Russian patent published in 2003 - IPC

FIELD: mechanical engineering and pneumatic percussive machines; applicable in manufacture of pneumatic machines or pneumatic hammers. SUBSTANCE: pneumatic hammer consists of body with exhaust holes, chisels, striker with head moving in movable tube, sealing rubber rings, slide valve body, stepped annular slide valve, mechanical starting mechanism consisting of hammer cover with branch pipe, cover of movable tube, sleeve with radial holes and cover with valve. EFFECT: increased serviceability of pneumatic hammer, provided long-term operation at air temperature up to plus 150 C and pressure variation in pneumatic system ranging from 0.2 to 0.6 MPa. 1 dwg