PERCUSSION ROTARY MECHANISM Russian patent published in 1996 - IPC

FIELD: machine engineering, particularly mechanisms of percussion rotary action. SUBSTANCE: percussion rotary mechanism includes housing, arranged in the housing anvil with cams and output shaft for joining with working member of machine, provided by percussion rotary mechanism, striker, having driving part in the form of frame, kinematically connected with shaft of drive motor, and driven part, having two-fully rotatable strikers with working heads, whose striking surfaces may engage with the cams of the anvil. The strikers through pushers engage with cone of sleeve, which together with balls, mounted in the sleeve, rest protrusion, formed by two cone and toroidal surfaces being junction between the cone surfaces, one surface of rod and power spring form apparatus for controlling rate of percussion. The rod has profiled cam, which together with rams placed in radial opening and spring-loaded form mechanism for shock controlling. The rod is mounted in frame only with possibility of axial relative motion. Lengthwise symmetry axis of the profiled cam coincides with straight line, passing through points on working heads of the strikers the nearest to outer surface of the cams of the anvil. The radial opening of the anvil lays in plane coinciding with lengthwise symmetry axis of the cams. EFFECT: enhanced structure of the mechanism. 10 cl, 24 dwg