PIEZOELECTRIC MOTOR Russian patent published in 2006 - IPC H02N2/10 H01L41/09 

FIELD: precision mechanical engineering; microscopic and nanoscopic displacement of various objects.]

SUBSTANCE: proposed piezoelectric motor has case with bore, platform, locating support, and piezoelectric drive. The latter is made in the form of two grips, each of these pairs being disposed in respective orthogonal plane crossing symmetry axis of platform. The latter is disposed in vicinity of case bore and is made in the form of tiered perforated plates. Two pairs of circular segments are disposed between plates. Each pair of segments is disposed in respective orthogonal plane. Side surfaces of segments bear annular slots. Each grip is provided with three piezoids and has fillet joined with two tiered flexible plates with notches and frictional members. Plates of each grip are joined together by means of first piezoid. Ends of each plate of grip are joined together by means of second and third piezoids. Case is provided with holders joined to one pair of grips engageable with annular slots of segments through frictional members of their plates. Second pair of grips is joined through fillets with locating support and is engageable through frictional members with annular slots of other pair of segments positioned in other orthogonal plane.

EFFECT: enhanced reliability and precision of positioning.

4 cl, 5 dwg