PLANET REDUCTION GEAR Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: reduction gear has central and satellite wheels, carrier, and two output links. The link between the satellite wheel and output link and/or the link between the central wheel and output link are made up as coaxial thin rings interconnected through staggered cross-pieces. To change a gear ratio one should change one wheel, central or satellite wheel, to a wheel whose number of teeth differs from the previous one. The other wheel and carrier are still previous. In operation the radial movement of the central wheel is compensated by bending strains of the rings. EFFECT: enhanced suitability. 2 cl, 7 dwg