HIGH-TORQUE VARIABLE-SPEED DRIVE Russian patent published in 2002 - IPC

FIELD: mechanical engineering. SUBSTANCE: variable-speed drive contains driving 2 and driven 3 shafts, differential gear of three shafts, and driving devices. Driving shafts 8a and 8b of the driving devices are mounted with displacement in phase by 90 deg. Driving shaft of every driving device is connected to the driving shaft 2 through gearing pair 9-10. The driving shaft receives rod 28 mounted for axial movement by means of handle 27 of varying the velocity ratio. Rod is connected to triangle plates 12 through shackle 12. Triangle plates 12 are mounted to the shaft 11 inside ear end of the driving shaft. Bearing 13 is mounted between triangle plates 12 and together with inclined crank 14 rotates and moves in axial direction. Driving shaft is connected to vibration shaft 17 through inclined crank 14. Vibration shaft 17 of each driving device is connected with boss of differential wheel through overranning clutches 18, 19 and gear. Planet carrier of the differential is a part of the driven shaft. EFFECT: simplified structure, enhanced operating characteristics. 5 cl, 7 dwg