提出了一种等腰梯形压电黏滑直线驱动器
通过粘贴在等腰梯形柔性机构柔性斜梁两侧的4片矩形压电陶瓷片使驱动足驱动滑块
以达到基于黏滑运动的高分辨率和大行程线性运动。调整等腰梯形柔顺机构斜梁的角度
可使驱动足产生横向运动
基于有限元方法
获得了柔性梁的适当角度。通过等腰梯形柔性铰链驱动足的横向运动
可增加使滑块前进的静摩擦力
减少回退动摩擦力。搭建了试验测试系统并进行了一系列试验
结果表明
该样机在4 N锁定力下最大输出速度为601.803μm/s
最大输出力为2.8 N
最小步进距离为0.026μm。采用压电陶瓷片作驱动源
易于小型化
拓宽了压电陶瓷片的应用领域。
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