塔机回转支承下架结构分析改进  

Analysis and improvement of tower crane slewing bearing under-frame structure

作　　者：张大可[1] 刘耀锋[1] 何函[1] 

机构地区：[1]重庆大学机械工程学院,重庆400044

出　　处：《建筑机械化》2009年第4期48-50,共3页Construction Mechanization

摘　　要：建立滚动式回转支承下架的计算模型,在计算分析基础上,改进了回转支承下架的板件布置。新的下架结构合理,重量降低,制造方便。This paper models the lower frame of the revolving bearing of a tower crane and carries the analysis on it employing finite element method.Some improvements have been made on the lower frame. The new lower frame is of reasonable structure, lower weight and good manufacturing process.

关 键 词：塔式起重机 回转支承 有限元 结构分析 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3