VARIABLE-SPEED DRIVE Russian patent published in 1999 - IPC

FIELD: transfer devices. SUBSTANCE: variable-speed drive includes double-stage multi-flow elastofriction drive. Twin cones are evenly mounted over circumference on axles which are secured as cantilevers in bearings of housing at angle relative to axis of input shaft. Angle of inclination of above-mentioned axles is equal to half angle at cone vertex. Inner generators of cones are brought in contact with rubber rim of drive roller. Outer generators of cones are brought in contact with rubber ring embracing the rim which is connected with output shaft. Rubber rim and rubber ring have flexible slip varying in width. EFFECT: increased range of control of gear ratio with axial displacement of kinematic links. 3 cl, 3 dwg