圆柱螺旋扭簧在无间隙直线传动机构中的应用  

Application of Cylinder Helix Torsional Spring to Gapless Linear Transmission System

作　　者：刘立国[1] 丁亚林[1] 惠守文[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《光机电信息》2011年第9期64-67,共4页OME Information

基　　金：国家863高技术研究发展计划资助项目(NO.2007AA701203)

摘　　要：在研究一种钢带无间隙直线传动机构的过程中,提出一种采用圆柱螺旋扭簧实现钢带张紧的新方法。介绍了钢带无间隙直线传动机构的工作原理;详细介绍了圆柱螺旋扭簧的张紧作用;分析了在运动周期内圆柱螺旋扭簧张紧扭矩的变化对钢带所受拉力和弹性变形的影响,以及引起的编码器输出误差,并给出了数学公式。对设计结果进行了验证,结果表明,圆柱螺旋扭簧能较好地实现张紧钢带的功能,满足设计要求。A new method of achieving steel band tension by using cylinder helix torsional spring was presented in the course of studying the gapless linear transmission system.The principle of the gapless linear transmission system was briefly described in this paper.The characteristics of the cylinder helix torsional spring were researched.The change of the steel band＇s tension and elastic deformation,as well as the encoder＇s output error was analyzed because of the cylinder helix torsional spring＇s inflection in periodic motion.A mathematical model was established and tested.The results indicated that the cylinder helix torsional spring could better achieve the function.It is concluded that the method can meet the design requirements。

关 键 词：钢带无间隙直线传动机构 误差分析 弹性变形 

分 类 号：TH132[机械工程—机械制造及自动化]