基于结合面密封性的螺栓组连接工艺研究  

The Research of Bolt-Joint Process about Sealing Performance of Joint Surface

作　　者：李静[1] 赵春蕾[1] 白姗姗[1] 韩慜 

机构地区：[1]长春工业大学机电工程学院,吉林长春130012

出　　处：《机械设计与制造》2015年第6期154-157,共4页Machinery Design & Manufacture

基　　金：吉林省自然科学基金项目(201215129)

摘　　要：主要研究了影响结合面密封性的两个因素,即螺栓预紧力和螺栓预紧顺序。建立了结合面任意易泄漏处压应力与螺栓残余预紧力的关联模型,通过工况载荷下的结合面分离应力反求各螺栓的初始预紧力,保证了零部件在装配过程中产生较高的密封性,为工程实践提供了有力的参考价值。提出了确定最优螺栓预紧顺序的工艺方案,并通过接触面上正压力与摩擦力的最大平均值和最小标准差确定了装配过程中的最优螺栓预紧顺序,保证了结合面的密封性。It studies two factors of impacting sealing performance of joint su^ace, preloading sequences and preloadingfarce. It provided a series of process plans of obtaining the optimal bolt preloading seq^nce to ensure the sealing performance of joint suoace, getting the optimal preloading sequences by the maximum average and the minimum standard deviation of normal pressure and friction. It also sets a association model of the pressing stress at easily leak part and residual preload of bolt. Through the joint suoace separation stress of the work load conditions, the initial preload of every bolt is obtained, to ensure higher sealing peormance in the process of assembling the parts, and provides valuable reference for engineering practice.

关 键 词：结合面密封性 螺栓组连接 ANSYS 

分 类 号：TH16[机械工程—机械制造及自动化] TG95[金属学及工艺—钳工工艺]