The utility model discloses a bidirectional rotary ultrasonic motor, the rotor comprises a turntable and arranged on the surface of the rotating disc friction layer; the stator comprises a bracket, the bracket is fixed by the same two ultrasonic vibration transducer, the same two elliptical vibration mode converter and arranged at the front end of the elliptical vibration mode converter two identical friction drive block; elliptic vibration mode converter is arranged at the front end of the ultrasonic vibration transducer, oblique wedge structure, the elliptical vibration mode converter can produce longitudinal ultrasonic vibration of ultrasonic vibration into an elliptical vibration mode converter and end friction drive vibration longitudinal bending ultrasonic elliptical block, two ultrasonic vibration transducer were working, two a friction drive block corresponding respectively to drive the rotor continuous rotary motion.
【技术实现步骤摘要】
【技术保护点】
双向驱动旋转超声电机,包括转子和定子,其特征在于:转子包括转盘和设置在转盘表面的摩擦层;定子包括支架、通过支架固定的两个相同的超声振动换能器、两个相同的椭圆振动模态转换器和两个相同的摩擦驱动块;所述的超声振动换能器外轮廓为圆柱形,其包括螺栓及依次套设在螺栓上的后盖板、压电陶瓷片、电极片和前盖板,前盖板上设置有可与支架联接用的法兰盘,后盖板和前盖板通过螺栓将后盖板、压电陶瓷片、电极片和前盖板联接压紧;所述的椭圆振动模态转换器设置在前盖板的前端,为斜楔形结构,斜楔形结构椭圆振动模态转换器原整体为长方体,沿超声振动换能器轴线方向其一侧被切割掉一部分后形成斜楔形结构,形成斜楔形的两个侧面中,未被切割的一侧面平行于超声振动换能器轴线,被切割过的另一侧面与超声振动换能器轴线成3?30度夹角;所述的摩擦驱动块设置在椭圆振动模态转换器的前端;经法兰盘和支架固定后的两个超声振动换能器轴线之间夹角为20度~160度。
【技术特征摘要】
【专利技术属性】
技术研发人员:殷振,李华,李艳,曹自洋,谢鸥,汪帮富,陈玉荣,任坤,吕自强,刘娇,
申请(专利权)人:苏州科技学院,
类型:实用新型
国别省市:
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