SPIRAL CYLINDRICAL GEARING WITH THRUST RINGS Russian patent published in 2002 - IPC

FIELD: machine engineering, possibly power spiral cylindrical gear transmissions. SUBSTANCE: gearing includes pinion, wheel and device for unloading bearing units of shafts from axial forces. Said device is in the form of thrust ridge rigidly secured to pinion shaft and provided with self-aligning thrust ring having flat and cone lateral sides and cone opening embracing cylindrical neck of thrust ridge. Cylindrical neck of thrust ridge is in the form of separate ring titled as supporting ring and mounted onto end step of toothed rim of pinion. Diameter of neck exceeds that of tooth indentations in order to provide access of oil from engagement zone to annular cavity and further by action of centrifugal force through end radial grooves on end of thrust ring to working zone of engagement. EFFECT: increased loading capacity of device. 1 dwg