高速压力机机构运动精度可靠性研究  

Reliability research on mechanism movement accuracy of high speed press

作　　者：陈胜军[1] 贾方[2] 丁倩[1] 张雅琪[1] 

机构地区：[1]南京师范大学电气与自动化工程学院,江苏南京210042 [2]东南大学机械工程学院,江苏南京211189

出　　处：《机械设计》2011年第9期34-38,共5页Journal of Machine Design

基　　金：江苏省科技攻关资助项目(BE2006036)

摘　　要：利用矩阵分析理论建立了平面连杆机构精度分析的一般模型,利用可靠性状态函数建立了连杆机构运动精度可靠性指标计算模型,以高速压力机机构为具体对象,建立了曲柄滑块机构运动输出精度模型及其可靠性分析计算模型。算例分析表明:在给定的设计精度下,高速压力机机构在不同的运动状态有着不同的运动误差和不同的运动可靠度。该模型可以定量地给出机构在不同运动状态下的失效概率,对机构的设计与制造具有应用价值。A general model of planar linkage accuracy analysis is established by applying matrix analysis theory,the reliability index calculation model of linkage movement accuracy is obtained by using reliability state functions.The movement output accuracy model and reliability analysis model of crank block mechanism are established by taking the mechanism of high speed press as the corresponding object.The case study indicates that the high speed press mechanism has different movement deviations and reliability when the design accuracy is given.This model can give the failure probability of the mechanism under different movement states,therefore,it is important to mechanism design and manufacture.

关 键 词：高速压力机 运动精度 可靠性 状态函数 连杆机构 

分 类 号：TH112.1[机械工程—机械设计及理论]