直线导轨副用钳制器可靠性建模分析与试验
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
目次
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
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