2018年4月1日
Micro Geared Ultrasonic Motor
IEEE/ASME Transactions on Mechatronics
- ,
- ,
- 巻
- 23
- 号
- 2
- 開始ページ
- 781
- 終了ページ
- 787
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1109/TMECH.2018.2792462
- 出版者・発行元
- Institute of Electrical and Electronics Engineers Inc.
We propose a micro geared ultrasonic motor, the smallest set of a micro ultrasonic motor and micro planetary gear. Our micro ultrasonic motor is one of the most powerful motors in one-millimeter-scale motors. The use of a micro planetary gear amplifies the motor torque to several tens of times and the geared motor enables a high torque density that was unachievable by existing miniature motors. The goal of this paper is to analyze the dynamic characteristic of the micro geared ultrasonic motor with a mathematical model and confirm the torque amplification experimentally using a micro planetary gear prototype. To build the microgear components, we employ a micro-injection molding process using metallic glass, a relatively new material, with a low melting temperature. The micro planetary gear assembly with a diameter of 2 mm, a length of 5.9 mm, and a gear ratio of 256 is built and connected to the micro ultrasonic motor. The micro geared ultrasonic motor demonstrates a continuous torque of 0.4 mN and a peak torque of 1 mN m in the load lifting experiments.
- ID情報
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- DOI : 10.1109/TMECH.2018.2792462
- ISSN : 1083-4435
- SCOPUS ID : 85040926053