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首页 > 过刊浏览>2017年第40卷第12期 >8-15,34. DOI:10.11835/j.issn.1000-582X.2017.12.002
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多轴精密传动实验平台设计及动态特性分析
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中图分类号:

TH132

基金项目:

国家自然科学基金资助项目（51575062，51605049）。


Design and dynamic characteristic analysis of multi-axis precision transmission test platform
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    摘要:

    传动实验平台的动态特性对精密减速器测试结果的精度和可靠性有重要影响。以自行研制的新型多轴精密传动实验平台为分析对象，基于赫兹接触理论提出了交叉滚子直线导轨结合部刚度的计算方法；根据交错轴减速器测试的实际工况，利用弹簧单元模拟导轨结合部的接触特性，建立了实验平台在极限位置下的动力学模型；在此基础上利用有限元方法进行了理论模态分析，获得了平台的前4阶固有频率和模态振型；最后通过样机测试对平台的动态特性加以验证，得到平台实际工况下的最大振动速度为0.487 mm/s。结果表明该新型传动实验平台满足精密设备的振动标准，具有良好的动态性能。

    Abstract:

    The dynamic characteristic of transmission test platform has a major impact on the accuracy and reliability of test results for precision reducers. A self-developed multi-axis precision transmission test platform is taken as the research object, and a calculating method of the joint part stiffness of cross roller linear guide way is proposed based on Hertz Contact theory. According to the actual test working state of cross axis reducer, spring unit is applied to simulate the contact characteristic of guide way joint part and the dynamic model of test platform at limit position is established. And then, the theoretical modal analysis is carried out by finite element method and the natural frequencies of the first 4 steps and modal shapes of the platform are obtained. Finally, the dynamic characteristic of test platform is verified by sample testing. The maximum vibration velocity of platform under actual working state is 0.478 mm/s. The results show that this new transmission test platform has excellent dynamic performance and it can satisfy the vibration criterion of precision equipments.

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魏波,陈永洪,梁栋,陈兵奎.多轴精密传动实验平台设计及动态特性分析[J].重庆大学学报,2017,40(12):8-15,34.

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  • 收稿日期:2017-07-02
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