空气捻接器凸轮过渡曲线运动特性分析  

Kinematic Characteristics Analysis of Cam Transition Curve of Air Splicer

作　　者：肖乾浩 杨福芹[1] 闫纪媛 姜敬伟 XIAO Qianhao;YANG Fuqin;YAN Jiyuan;JIANG Jingwei(College of Mechanoelectrical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061

出　　处：《机械与电子》2021年第1期17-22,共6页Machinery & Electronics

基　　金：山东省重点研发计划项目(2018GGX103015)。

摘　　要：针对空气捻接器中凸轮因过渡曲线形式导致振动、冲击和噪声等问题,对不同形式的凸轮过渡曲线运动特性进行了分析。采用平面展开法,建立过渡曲线坐标系,归纳出圆弧式、抛物线式和五次多项式3种形式的过渡曲线,并探究凸轮半径R0、动程s和过渡角θ对过渡曲线位移、类速度和类加速度的影响。研究结果表明:圆弧过渡曲线、抛物线过渡曲线将会在曲线端点处产生柔性冲击;五次多项式过渡曲线可以通过选择适当的参数值,避免柔性冲击。Aiming at the vibration,impact and noise caused by transition curves of cams in air splicer,the kinematic characteristics of different types of cam transition curves were analyzed.The plane expansion method was used to establish the coordinate system of transition curve.Three types of transition curves,such as arc,parabola and quintic polynomial,were summarized.The influence of cam radius R0,stroke s and transition angleθon displacement,quasivelocity and quasiacceleration of transition curve were investigated.The results show that the arc transition curve and parabola transition curve will produce flexible impact at the end of the curve;Quintic polynomial transition curve can avoid flexibility impact by selecting appropriate parameter values.

关 键 词：空气捻接器 凸轮过渡曲线 运动特性 

分 类 号：TH132.47[机械工程—机械制造及自动化]