Displacement superposed piezoelectric engaging motor and its exciting method

The invention is in order to solve issues that the current piezoelectric harmonic motor possesses disadvantages of large non-effective deformation, large power loss, complicated structure of motor, large abrasion, and low drive efficiency. Multiple rectangular through grooves are made on the excircl...

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Bibliographic Details
Main Author JIANJUN,GENG QU
Format Patent
LanguageEnglish
Published 10.10.2007
Subjects
BLASTING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GENERATION
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:The invention is in order to solve issues that the current piezoelectric harmonic motor possesses disadvantages of large non-effective deformation, large power loss, complicated structure of motor, large abrasion, and low drive efficiency. Multiple rectangular through grooves are made on the excircle face of internal tooth elastic wheel. One piece of piezoelectric ceramic body is inserted to each through groove. Stretchy direction of electrified piezoelectric ceramic body is parallel to tangent of the excircle face. Through corresponding multiple grooves to inner circle, bulges on the excircle face are connected to each other. Internal teeth of internal tooth elastic wheel engage to external teeth of external tooth rigid wheel partially. Advantages of the invention are: output of large torque in low speed, high energy conversion efficiency, long service life, high precision of rotation, and no electromagnetic interference etc.
Bibliography:Application Number: CN2007171802