中国机械工程 ›› 2015, Vol. 26 ›› Issue (18): 2518-2524.

• 机械基础工程 • 上一篇    下一篇

螺旋驱动杆式行波型超声电机

华顺明1,3;孟玉明1,2;李志强1,2;楼应侯1,3;李加林1,2   

  1. 1.浙江大学宁波理工学院,宁波,315100
    2.太原科技大学,太原,030024
    3.浙江省零件轧制成形技术研究重点实验室,宁波,315100
  • 出版日期:2015-09-25 发布日期:2015-09-23
  • 基金资助:
    国家自然科学基金资助项目(51275467);宁波市自然科学基金资助项目(2010A610129) 

Rod Type Traveling Wave Ultrasonic Motor Based on Spiral-driving

Hua Shunming1,3;Meng Yuming1,2;Li Zhiqiang1,2;Lou Yinghou1,3;Li Jialin1,2   

  1. 1.Institure of Technology,Zhejiang University,Ningbo,Zhejiang,315100
    2.Taiyuan University of Science and Technology,Taiyuan,030024
    3.Part Rolling Key Laboratory of Zhejiang Province,Ningbo,Zhejiang,315100
  • Online:2015-09-25 Published:2015-09-23
  • Supported by:
    National Natural Science Foundation of China(No. 51275467);Natural Science Foundation of Ningbo(No. 2010A610129)

摘要:

设计了一种螺旋驱动杆式行波型超声电机,初步分析了其驱动机理。推导了螺纹牙型角与定子长度以及转子直径三者之间的关系,并以提高螺纹驱动效率为目标函数,确定了电机主要结构尺寸,优化了用于放大振幅的定子凹槽结构。加工制作了样机,并搭建了试验装置,测试了电机的主要性能参数。试验表明:电机实际工作频率为24.5kHz,与仿真结果基本一致;调节相差可实现正反转控制,启停灵敏;在220V驱动电压下,电机最大空载转速为40r/min,堵转轴向力为1.7N。

关键词: 精密螺旋传动, 压电驱动, 超声电机, 弯曲振型

Abstract:

A rod type traveling wave ultrasonic motor was designed based on spiral-driving and its working principles were  preliminarily analyzed.The relationship among thread angle and stator length as well as rotor diameter was discussed. And then,setting  efficiency   improvement  of screw transmission as object function, the main geometric parameters of stator could  be determined.The size of groove was also optimized,which was used to amplify vibration amplitude.Based on these analyses,a prototype motor was fabricated. The corresponding experimental platform was established, and the main performances of motor were tested.The experimental results indicate that the actual working frequency is as  24.5kHz, which is in accordance with simulation one. The motor can be controlled to run clockwise or counter clockwise through alternating phase difference, and on-off  operating characteristics are satisfied.Under driving voltage of  220V, the maximum rotary speed under no-load conditions  is as 40r/min,and the locked axial force is as 1.7N.

Key words: precision , screw transmission;piezoelectric actuation;ultrasonic , motor;bending mode

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