VARIABLE-SPEED DRIVE Russian patent published in 2003 - IPC

FIELD: mechanical engineering, in particular, friction rotational steplessly variable transmission drive construction. SUBSTANCE: variable-speed drive has face disks mounted on driving and driven shafts for engagement with friction rollers. Intermediate shaft is positioned between driving and driven shafts and provided with supports defining screw pairs with intermediate shaft ends. Differential carrier is positioned on intermediate shaft for rotation about its axis. Satellite gears are rigidly fixed on carrier for engagement with sun gears rigidly connected with friction rollers. EFFECT: increased efficiency, convenient operation due to automatic selection of optimal transmission ratio of variable-speed drive depending on loading. 1 dwg