AUTOMATIC V-BELT VARIABLE-SPEED DRIVE Russian patent published in 1998 - IPC

FIELD: mechanical engineering; stepless transmissions of motorcycles, scooters, mopeds, snowmobiles, and stepless drives of machines with automatic control of angular velocity depending on antitorque moment. SUBSTANCE: automatic V- belt variable-speed drive has driven shaft with spring- loaded axially movable semipulley and fixed semipulley and solids of revolution. Variable-speed drive has separator and support disk. Disk is rigidly secured on driven shaft. Seats of separator are made in form of curvilinear slots for engagement with support disk and round-section grooves of movable semipulley. EFFECT: optimization of variable-speed drive efficiency, increased service life of automatic V-belt variable-speed drive, enlarged gear ratio control range. 3 cl, 2 dwg