VARIABLE-SPEED DRIVE Russian patent published in 1998 - IPC

FIELD: mechanical engineering; devices for stepless regulation of revolutions of driven shaft. SUBSTANCE: variable-speed drive has drive and driven gear wheels with longitudinal slots on taper surfaces, longitudinal splines received by these slots for radial displacement and toothed flexible coupling embracing the gear wheels. Splines have inclined ends with rounded-off side corners; teeth of flexible coupling are located on its inner portion. Drive and driven gear wheels are provided with freely revolving stops having taper surfaces which change into surfaces of gear wheels. EFFECT: enhanced reliability. 5 cl, 2 dwg