165MN油压机回转工作台的应力分析  

Stress analysis of the rotating platform used in 165 MN hydraulic press

作　　者：张栋[1] 李庆龄[1] 于忠海[1] 

机构地区：[1]上海电机学院机械学院,上海200245

出　　处：《锻压技术》2014年第8期72-75,共4页Forging & Stamping Technology

基　　金：上海市教育委员会上海高校知识服务平台建设项目(ZF1225)

摘　　要：回转工作台是大型油压机最基本的冶金辅具,在锻压过程中主要承受工作压力和高温。以设计开发的回转工作台为对象,分析了回转工作台的受力情况。利用有限元分析方法,针对油压机转台3种不同工况时的压应力、热应力与变形进行了计算分析。计算分析结果表明,在165 MN工作压力作用下,转台的最大等效应力为192 MPa。参考有限元分析结论,研制了适用于165 MN油压机工况的回转工作台,转台材料选用铸钢ZG270-500,在165 MN工作压力和工件温度1200℃条件下已经安全稳定工作了800 h以上。实际应用证明设计的工作转台能够满足工作要求,适合在高温、大负荷条件下工作。Rotating platform is the most basic metallurgical implement of large-scale hydraulic press, and it is mainly loaded working pres- sure and high temperature during forging. Taking the designed and developed rotating platform as an object, the stress conditions of rota- ting platform were analyzed. The compressive stress, thermal stress and deformation of rotating platform for hydraulic press were calculated and analyzed under three different working conditions by using finite element analysis. The calculation result indicates that the maximum equivalent stress value of rotating platform is equal to 192 MPa under the working pressure of 165 MN. Referring to the finite element a- nalysis result, the rotating platform applicable for the work conditions of 165 MN hydraulic press was designed and made by using cast steel ZG270 -500, which has safely and stably run for more than 800 hours under working pressure of 165 MN and workpiece temperature of 1200℃. The practical application shows that the designed rotating platform can meet the requirements for work, and it is applicable for the working condition of high temperature and heavy load.

关 键 词：油压机 回转工作台 压应力 热应力 应力分析 

分 类 号：TG315[金属学及工艺—金属压力加工]