換能器及配合機構之設計

Design of Tranducer and Its Driven Mechansim

莊仁吉(Jen-Chi Chuang)

指導教授 ： 丁鏞

中原大學/工學院/機械工程研究所/碩士(2009年)

https://doi.org/10.6840/cycu200900016

摘要

本研究係設計傳動機構將壓電式換能器之線性輸出轉換為旋轉輸出。壓電式換能器為利用壓電驅動元件及彈性振動體架構，藉驅動器將壓電致動器驅動可產生縱軸方向的弦波振動，經由變幅桿達成降低頻率放大振幅。而如何將此輸出之線性振動，設計適當之機構以有效地轉換為旋轉輸出且具有相當輸出效益，是本研究之重點。
本文中所設計之機構是依循直線轉旋轉之機構原理，將換能器產生往復式直線運動，透過變幅桿推動一個前端有斜面之轉子，經由圓柱斜面機構產生輸出旋轉運動。亦利用有限元素法軟體搭配機構分析軟體模擬分析變幅桿，找尋其最佳之放大輸出功能並確認其功能效果。

關鍵字

變幅桿 ； 換能器

並列摘要

The primary objective of this research work is to develop an efficient mechanism to transfer the linear motion of the transducer output into rotary motion. The transducer is constructed with piezoelectric ceramic actuators and elastic vibratory components to generate longitudinal vibration, which is amplified by an amplification mechanism. How to design an appropriate mechanism to transfer this linear vibrating motion into rotary motion is the focus of this article.
By using the transmission theory of linear to rotary transformation, a cylindrical mechanism with slide surface can transfer the oscillating linear motion output from the transducer into an intermittent rotary motion. Structural and kinematic analyses by using ANSYS finite element method and ADAMS software are carried out to verify the system performance and provide an optimal design index.

並列關鍵字

amplification mechanism ； transducer

參考文獻

[1] 王順聰, ”臨床高等醫療儀器系統原理與運用”,藝軒圖書出版,1989

[2] 楊素珍,江志明,”心血管醫學影像之介紹及應用科儀新知”第二十卷四期88.2

[3] Sashida, T., and Kenjo, T., “An Introduction to Ultrasonic Motors,”Clarendon Press, Oxford, 1993.

[4] 林書玉,”超聲換能器的原理及設計”,科學出版社,2004

[5] 林仲茂, ”超聲變幅桿的原理與設計”,科學出版社,1987