HIGH-SPEED MECHANISM SHAFT SUPPORT Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: shaft support of high-speed mechanism has at least three bearings mounted in housing on journals of eccentric shafts. Bearings are arranged so that their outer races are held tight against high-speed shaft journal. Each eccentric shaft is provided with lever. Levers are joined in tandem in parallel pairs by means of cleats mounted on pains fixed in levers. One of levers is hinged through control rod to screw installed on housing. Screw is provided with torsional spring one of whose ends is secured on screw and other, on housing. Spring builds up torque that drives screw into housing to create tractive force imparting torque to eccentric shaft through control rod, lever, and cleat. This torque provides for permanent and uniform pressure of bearings against supporting journal of high-speed shaft. Forces due to unbalance of mass on high-speed shaft are finally taken by screw-to-housing joint. This reduces vibration thrusts and radial forces acting on bearing. EFFECT: improved mechanical endurance of high-speed shaft supports. 3 dwg