HIGH-TORQUE NON-FRICTION VARIABLE-SPEED DRIVE Russian patent published in 2007 - IPC F16H29/00 

FIELD: mechanical engineering.

SUBSTANCE: invention is designed for stepless change of gear ratio in transmissions at high transmitted power. Proposed variable-speed drive contains input and output shafts, vibratory mechanism set into operation by input shaft with pair of vibratory shafts operating at relative 90° phase shift, flywheels, three-shaft gear differential mechanically coupled with output shaft by carrier and pair of vibration equalizers. Driving shafts of vibration equalizers are vibratory shafts, and driven shafts are shaft of differential gears. Variable-speed drive is furnished with flywheel rigidly connected with shafts of differential gears with inertia moment J applied to said shafts. Inertia moment J is related to moment on carrier M_c according to expression M_c<4Jω²(λ/π)u, where ω is speed on input shaft, λ is swing of vibrations of vibratory shaft and u is gear ratio between vibratory shaft and shaft of differential gear.

EFFECT: improved operating characteristics, simplified design and reduced cost of variable-speed drive.

2 cl, 5 dwg