AUTOMATIC V-BELT VARIABLE-SPEED DRIVE Russian patent published in 2002 - IPC

FIELD: mechanical engineering; control of rotational speed of driven shaft in motor transport facilities. SUBSTANCE: variable-speed drive has drive and driven shafts with drive and driven pulleys consisting of fixed semi-pulleys and axially movable semi- pulleys made in form of taper disks with hubs. Drive and driven pulleys embrace V-belt. Fitted on drive pulley is centrifugal governor with curvilinear guides of centrifugal weights. Torque regulator fitted on driven pulley is made in form of pipe and cam slot secured on hub of fixed semi-pulley; cam slot is made in hub of fixed semi-pulley. Working surfaces of cam slot is just curvilinear surface at varying angle of inclination of cam slot relative to generatrix of hub of fixed semi-pulley. EFFECT: enhanced operational efficiency of automatic V-belt variable-speed drive. 2 dwg