一种增强桁架臂刚度的技术研究  

Research on a technology to enhance the stiffness of boom

作　　者：杨勇 孙影 周玉龙 YANG Yong;SUN Ying;ZHOU Yu-long

机构地区：[1]徐工机械建设机械分公司,江苏徐州221004

出　　处：《建筑机械》2022年第3期47-49,共3页Construction Machinery

基　　金：江苏省科技成果转化专项资金项目(BA2019016)。

摘　　要：履带起重机桁架臂在重力或侧向力作用下会产生变形,变形过大会造成桁架臂整体失稳或局部应力过大,导致桁架臂破坏或桁架臂的起重能力降低。本文研究一种桁架臂附加装置,约束桁架臂的变形,提高刚度,改善受力,从而提高桁架臂起重能力,保证桁架臂的安全工作。The truss arm of crawler crane will deform under the action of gravity or lateral force. Excessive deformation will cause the overall instability of the truss arm or excessive local stress, resulting in the destruction of the truss arm or the reduction of the lifting capacity of the truss arm. This paper studies a truss arm attachment device, which restricts the deformation of the truss arm, improves the stiffness and improves the stress, so as to improve the lifting capacity of the truss arm and ensure the safe work of the truss arm.

关 键 词：履带起重机 桁架臂 稳定性 强度 位移 

分 类 号：TH21[机械工程—机械制造及自动化]