CYLINDRICAL WORM GEAR Russian patent published in 1999 - IPC

FIELD: mechanical engineering, may be used in machines and mechanisms having power and kinematic worm gears. SUBSTANCE: cylindrical worm gear has Archimedes' spiral, evolvent or convolute gear and half-crown worm wheel. Maximum diameter of half-crown worm wheel is 1.8-2.0 of axis-to-axis distance of worm gear. One end of worm wheel is spaced from main plane of gear by distance exceeding size of outer radius of worm. Width of worm wheel is selected such that its other end is spaced from main plane of gear by distance equal to 0.2-0.4 of outer radius of worm. EFFECT: increased loading capacity and enhanced reliability in operation of gear. 4 dwg