PIEZOELECTRIC STEPPING MOTOR Russian patent published in 2000 - IPC

FIELD: electrical and radio engineering, telemechanics, automatic control. SUBSTANCE: motor has frame, stator in the form of piezoelectric block, and rotor. Stator is built up of rotating and locking piezoid blocks placed inside frame in one or more cross planes. Each piezoid block incorporates rotating and locking piezoids, insulators, and friction member. Rotor has at least one guide that enters respective guide in friction member made in the form of snap ring. Spaces between piezoid blocks may be filled with flexible insulating material. Piezoids may be made in the form of set of piezoelectric sectors. Rotor is capable of running continuously and its speed can be easily varied. EFFECT: improved service life of motor. 3 cl, 14 dwg