STRIPPER FOR DEMOUNTING PARTS Russian patent published in 2002 - IPC

FIELD: assembling-disassembling operations, possibly demounting parts such as gear wheels, pulleys, bearings. SUBSTANCE: stripper includes housing with opening. In said housing by means of articulation joint assemblies double-arm clamping levers with hooks and inclined grooves for joint assemblies are mounted. In opening of housing power cylinder with spring-loaded rod is movably mounted. Stripper includes flat cam mounted with possibility of rotation relative to housing and having uniformly arranged along its perimeter identical working helical surfaces. Each lever is mounted with possibility of engaging with respective surface of cam and it is spring-loaded towards cam and respective joint assembly. Working surfaces of cam have shape of Archimedean helix with lead angle no more than self-braking angle. Working surfaces are mutually connected by means of cylindrical surface joined with portion of working surface having minimum radius of helix and by means of flat surface inclined relative to portion of working surface with maximum radius of helix. Grooves of clamping levers are inclined by angle more than self-braking angle by 1-10 deg. EFFECT: enhanced operational reliability of stripper. 3 cl, 3 dwg