摘要
提出了一款由双兰杰文振子组成的V型直线超声波电动机,该电机通过两个兰杰文振子的纵振和弯振,在定子驱动足上形成椭圆运动,从而驱动直线滑轨对外输出直线运动。该电机使用了阶梯型超声变幅杆,有效地放大了定子驱动足处的振幅。介绍了电机的结构和工作原理,然后介绍了使用有限元法优化定子的方法,最后对实验样机进行了输出特性测试。结果表明,该电机无负载的最大输出速度206 mm/s,电机的最大输出力为10.5N。
A V-shape linear USM using two Langevin vibrators was introduced. Elliptical motions of the stator＇s driving tip were generated by superposition of longitudinal and bending modes of Langevin structures,which drived the linear slide in a linear motion. The amplitude of the driving tip was enlarged effectively by step cut ultrosonic horn. The structure and working principle of the V-shape USM were shown,and the way of optimizing the stator was shown by using FEM. A proto- type was fabricated for the fundamental characteristics analysis. The no-load maximum speed was 206 mm/s and the maxi- mum output force was 10.5 N.
出处
《微特电机》
北大核心
2012年第5期40-42,共3页
Small & Special Electrical Machines
