PNEUMATIC HAMMER Russian patent published in 1997 - IPC

FIELD: mechanical engineering, civil engineering. SUBSTANCE: pneumatic hammer has housing consisting of two parts connected by thread, impact amplifier made in form of power striker with inclined surface, intermediate striker with taper working surface arranged inside guide bushing pressed by one of housing parts, balls and guide bushing of guide washer with grooves. Amplifier is arranged inside housing between main striker and working tool. Balls are installed for radial sliding along taper surface of intermediate striker, grooves of guide washer and inclined surface of power striker. Shock absorbing member is installed at place of connection of guide bushing and housing. EFFECT: enlarged operating capabilities. 3 dwg