起重运输机械Issue(10)：15-20,6.
门架及转台人字架系统强度分析及改进设计
摘要
Abstract
With MQ1625 portal slewing crane as the study object, strength analysis is performed for the crane portal and turntable A-frame with the software Ansys, and an improvement scheme is put forward based on the analysis result. The study shows that:when a portal slewing crane is at rated load, the strain displacement on the top of A-frame is maximal, with the maximum strain displacement being 21. 03 mm;the local deformation at the cylinder part of the portal structure is relatively large. The crane structure is optimized by properly increasing the panel thickness and improving the welding process. After the modification, the stress and strain distribution is largely improved.关键词
门座起重机/门架/转台人字架/强度分析Key words
portal slewing crane/gantry/turntable A-frame/strength analysis分类
机械制造引用本文复制引用
吴洲庆,赵章焰,夏文俊..门架及转台人字架系统强度分析及改进设计[J].起重运输机械,2016,(10):15-20,6.基金项目
中央高校基本科研业务费专项资金资助 (2015-zy-112) （2015-zy-112）
