一种万向铰链型膨胀节万向环设计方法  

Design of Universal-hinged Expansion-joint Type Universal Ring

作　　者：梁吉玲 李华 Liang Jiling;Li Hua

机构地区：[1]上海梅山钢铁股份有限公司,上海210039

出　　处：《一重技术》2025年第1期22-24,共3页CFHI Technology

摘　　要：现行膨胀节国家标准GB/T 12777-2019中的万向铰链型膨胀节方形万向环的设计方法只计算最危险截面,计算结果比较保守。通过有限元计算,发现采用该方法设计的万向环的应力水平大都很低。因此,从节约成本考虑,提出一种优化的万向环结构及设计方法。In the current National Standard GB/T 12777-2019,calculation is required only for the most dangerous cross section of the universal-hinged expansion joint,and the calculation results are relatively conservative.Through finite element calculation,it is found that stresses of the universal-joint type universal rings designed by this method are mostly very low.Therefore,from the perspective of cost saving,an optimized universal ring structure and design method is proposed.

关 键 词：膨胀节 万向环 正应力 

分 类 号：TH136[机械工程—机械制造及自动化]