由于桁架式起重臂在运输及使用过程中易发生变形和损坏，因此经常需要维修保养才能继续使用。几年来，我公司在起重臂杆件的维修过程中，积累了一些修复经验，现介绍于下。１起重臂杆件结构存在的缺陷的分析起重臂杆件最常产生的缺陷是挠曲和局部凹陷。对照抚顺挖掘机厂以及日 As the truss boom is prone to deformation and damage during transportation and use, it is often necessary to maintain it for continued use. Over the past few years, my company in the maintenance of the boom components, has accumulated some experience in repair, are introduced below. An analysis of the shortcomings of the boom lever structure The most common drawbacks of boom lever members are deflection and partial depression. Control Fushun excavator and Japan