精密工学会誌
Online ISSN : 1882-675X
Print ISSN : 0912-0289
ISSN-L : 0912-0289
電磁サイクロイドモータの研究
林 巌岩附 信行柴田 順二松長 博和田 選
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1995 年 61 巻 1 号 p. 95-99

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A piezoelectric cycloid motor, which was proposed in a previous paper, is composed of an internal and external gear pair and four drive units containing piezoelectric actuators. The motor has hence some merits which arise from gear drive: no slip motion, long life, and precise motion. It has moreover an excellent characteristics that it rotates steadily and keeps its rotational speed up to its maximum output torque at any rotational speed. The efficiency increases as the rotational speed and the load increase. The motor, however, is subject to a drawback in that it is very difficult to miniaturize because the motor requires four magnifying lever mechanisms to increase the very small displacement, l0μm, of a piezoelectric actuator. In this paper, an electromagnetic cycloid motor is proposed, which is directly driven by four electromagnetic linear actuators instead of the four drive units. The motor rotates based on the same principle as the piezoelectric cycloid motor, but is not subject to the drawback. The output characteristics are experimentally and theoretically investigated.

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