基于整体稳定性的全地面起重机偏心调整架与超起装置的相互关系  

Relationship between eccentric structure and superlift device of all-terrain crane based on the whole stability

作　　者：姚峰林[1] 石国善 孟文俊[1] 白艳强 崔耀东 YAO Fenglin;SHI Guoshan;MENG Wenjun;BAI Yanqiang;CUI Yaodong(School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,Shanxi,China)

机构地区：[1]太原科技大学机械工程学院,山西太原030024

出　　处：《中国工程机械学报》2020年第2期107-112,共6页Chinese Journal of Construction Machinery

基　　金：山西省自然科学基金资助项目(201901D111236)。

摘　　要：大型全地面起重机在超高的起升高度下作业时,臂架系统的稳定性成为决定其起吊能力的关键因素,安装偏心调整架及超起装置有助于提升臂架系统的稳定性。为了达到最佳的增幅效果,研究偏心调整架与超起装置的相互关系具有重要意义。以500 t全地面起重机塔式副臂超起组合臂架系统为研究对象,在考虑吊重、自重、偏载、风载荷与起升绳力共同作用时,采用ANSYS软件对其进行特征值屈曲分析与几何非线性屈曲分析,在此基础上研究了偏心调整架的撑杆长度、张开角度、变幅角度与超起装置的撑杆长度、张开角度、变幅角度之间的组合关系对组合臂架系统整体稳定性的影响规律,得到偏心调整架与超起装置最佳的参数组合,为工程实际提供参考。When the large all-terrain crane operated under ultra high hoisting height,the stability of boom system became the key factor of the lifting capacity.The installation of eccentric structure and superlift device could help to improve the stability of boom system.In order to achieve the best effect of growth,it was important to study the relationship between eccentric structure and superlift device.The eigenvalue buckling analysis and geometric nonlinear buckling analysis were carried out by ANSYS for the combined boom system of 500 t all-terrain crane with tower jib when the lifting load,dead weight,offset load,wind load and lifting rope force were considered.And then the influence rule of the combined relationship between the strut length,opening angle,amplitude variation angle of the eccentric structure and the strut length,opening angle,amplitude variation angle of the superlift device on the whole stability of combined boom system was analyzed to obtain the optimum parameter combination of eccentric structure and superlift device,which provides reference for engineering practice.

关 键 词：全地面起重机 整体稳定性 偏心调整架 超起装置 有限元分析 

分 类 号：TH213[机械工程—机械制造及自动化]