Actuating mechanism, for gearbox, has provision for reduction of autoblockage by application of alternating current to an actuator followed by high frequency low amplitude currents

摘要

The operating bar (12) is actuated by a first electric motor (26) through a cam and rod (36) and a second electric motor (46) through an endless screw (52) and a sleeve and pin mechanism (60). The adverse effect of auto blockage on accurate gear finding is minimized by application of an alternating current to the second electric motor to produce first an oscillation and finally a high frequency low amplitude vibration Independent claims are made for methods of producing the oscillations and vibrations.