直线导轨副用钳制器可靠性建模分析与试验

摘要本文针对国产空压钳制器进行钳制力可靠性试验展开研究。首先，通过对钳制器结构的分析，明确钳制力产生原理，计算理论刹车距离；并考虑楔形块水平方向角度误差、滚柱与保持架之间安装误差、摩擦块垂直方向角度误差对钳制力的影响；其次分析了钳制器的主要失效模式，结合上述分析进行了失效机理探究，得出失效与磨损量的关系模型。在失效分析的基础上，使用钳制器可靠性试验台开展钳制器钳制力可靠性试验，获得可靠性试验数据，评估了钳制器可靠性寿命。与通过失效分析估算的钳制器可靠性寿命进行对比分析。42420
毕业论文关键词钳制器直线导轨副失效分析可靠性寿命
Title Reliability Modeling,Analysis and Test of the Clamping Device for Linear Guide
Abstract This article carry on research for clamp force reliability test about Domestic air clamping device. First of all, through structural analysis of clamping device, clear principle of producing clamping force, count theoretical braking distance ，and wedge block horizontal angle error, installation error between roller and cage , friction block vertical angle error are considered on clamping force . Secondly, analyzed the main failure mode of clamping device, explore failure mechanism combined with the above analysis, obtain the relation model of failure and wear extent. Next ,on the basic of Failure analysis of clamping device ,the artic do the clamping force reliability test by using clamping device reliability test device, assess the reliability life of clamping device based on the result of reliability test .Finally ,compare and analysis two different clamping device reliability life acquire from failure analysis and reliability test.
Keywords clamping device failure analysis reliability life Linear Guide

1绪论3

1.1选题的背景及意义3

1.2滚动直线导轨副用钳制器研究现状..3

1.3滚动直线导轨副用钳制器可靠性试验研究现状4

1.4本文研究的主要内容和研究手段5

2滚动直线导轨副用钳制器结构分析、失效分析7

2.1滚动直线导轨副用钳制器结构分析..7

2.1.1钳制器基本工作原理分析8

2.1.2钳制力分析9

2.1.3摩擦块行程分析..10

2.1.4摩擦块制动距离分析11

2.1.5误差分析..11

2.1.6小结.13

2.2滚动直线导轨副用钳制器的失效模式..14

2.2.1磨损失效..14

2.2.2结构失效..15

2.2.3变形失效..15

2.2.4泄露失效..15

2.2.5滚动直线导轨副用钳制器FEMA表..16

3基于失效机理分析的摩擦磨损试验18

3.1摩擦磨损试验18

3.1.1试验原理..18

3.1.2试验准备..18

3.1.3试验过程..23

3.1.4试验数据..24

3.2钳制器寿命估算..30

3.2.1空压常开钳制器寿命估算.30

3.2.2空压常闭钳制器寿命估算.31

4滚动直线导轨副用钳制器可靠性试验..33

4.1试验装置介绍33

4.2试验原理与试验过程34

4.2.1失效判定条件34

4.2.2试验方案..34

4.2.3试验实施过程36

4.2.4试验数据与分析..41

结论44

致谢45

参考文献..46

附录Aχ2分布分位数表.48 直线导轨副用钳制器可靠性建模分析与试验:http://www.751com.cn/jixie/lunwen_42851.html