直线压电振动送料器轨道匹配失效现象研究

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (19) : 79-82.

论文

直线压电振动送料器轨道匹配失效现象研究

田晓超1,2，杨志刚3，吴越3，王锐4，杨树臣4，李庆华2

作者信息 +

Track matching failure phenomena of linear piezoelectric vibration feeders

TIAN Xiaochao1,2, YANG Zhigang3, WU Yue3,WANG Rui4, YANG Shuchen4, LI Qinghua2

Author information +

文章历史 +

摘要

针对直线式压电振动送料器设计与使用中出现的轨道匹配失效现象，设计试验样机对不同轨道及安装方式进行试验，采用两个激光位移传感器对轨道失效时不同位置的振动位移进行了测试，测试结果表明，轨道端点振幅大，中心位置振幅小，轨道两端点运动方向相反，即轨道在发生平移运动的同时也发生了转动。回转中心附近测试点位移为8.2μm，端点位移则可达到67.8μm。建立了无阻尼条件下轨道的平移与角运动的动力学方程，得到了轨道匹配有效的条件为端点角运动幅值分量小于平移运动幅值分量。理论分析结果表明减小轨道长度、振子安装角及支撑点的不对称度有助于解决轨道配合失效问题。

Abstract

Aiming at track matching failure phenomena appearing in design and use of linear piezoelectric vibration feeders, a prototype for tests was designed, and tests were conducted for different tracks and their installation ways.Two laser displacement sensors were used to measure vibrations of different positions during track failures.The results showed that amplitude of track endpoint is large, amplitude of track central position is small, motion directions of track’s two ends are opposite, i.e., track has both a translational motion and a rotation; the measured point near track gyration center has a displacement of 8.2 μm, the endpoint displacement can reach 67.8 μm; dynamic equations for both translation and angular motions of track under the condition of no damping are established, the effective condition for track matching is amplitude component of end angular motion being smaller than that of its translational motion.Theoretical analysis results indicated that decreasing track length, installation angle of vibrator and supporting points’ asymmetry degree are helpful to solve problems of track matching failure.

导出引用

田晓超1,2，杨志刚3，吴越3，王锐4，杨树臣4，李庆华2. 直线压电振动送料器轨道匹配失效现象研究[J]. 振动与冲击, 2018, 37(19): 79-82

TIAN Xiaochao1,2, YANG Zhigang3, WU Yue3,WANG Rui4, YANG Shuchen4, LI Qinghua2. Track matching failure phenomena of linear piezoelectric vibration feeders[J]. Journal of Vibration and Shock, 2018, 37(19): 79-82

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