履带起重机双主臂横向连接结构的设计与研究

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	英文篇名：Design and Research of Lateral Connecting Structure in Double-main-boom Structure for Crawler Cranes 作者：孙绍琳 英文作者：Sun Shaolin; 关键词：履带起重机 ; 双臂架 ; 横向连接 英文关键词：Crawler crane;;Dual boom frame;;Lateral connection 中文刊名：GCJA 英文刊名：Construction Machinery and Equipment 机构：大连益利亚工程机械有限公司; 出版日期：2019-01-10 出版单位：工程机械 年：2019 期：v.50;No.543 语种：中文; 页：GCJA201901009 页数：10 CN：01 ISSN：12-1328/TH 分类号：7-8+45-52

摘要

针对履带起重机双主臂结构中的横向连接结构展开研究。选择60 m、90 m和120 m三种臂长,分别设计几种横向连接节位置、数量不同的臂架组合,利用有限元分析软件,对一定的典型工况进行结构计算分析,并对特定位置的结构应力、变形等分析结果进行对比,得出较优的臂架组合方案。提出双臂架之间横向连接结构的设计原则为:在保证单个臂架结构整体稳定性的前提下,应首先保证臂架根部和头部布置横向连接节,其次相邻两个横向连接节的间隔距离与臂架全长之比应不大于50%。
        A study has been developed on a crawler crane's dual booms' cross connection. Lengths of 60 m, 90 m, and 120 m were selected respectively to make combinations of different cross positions, and boom groups in various number, with which to compute and analyze the combined structures under certain typical working conditions, so as to get a solution to the boom groups before comparing resultant structural stress and deformation at specified positions.Besides, It has to provide design principles for cross connection between the 2 booms, i.e. Under the precondition that a single boom structure be sure of stability as a whole, and first of all to ensure cross connections between feet of the booms and between the tops, beside ensuring ratio of 50% or less of clearance between2 cross connections with total length of the boom.

引文

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