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履带式起重机吊臂的腹管弯曲变形损伤,主要是由运输、存放和施工生产中受外力作用所造成。腹管的特点是韧性好、重量轻和管壁一般较薄,受外力冲击后很容易引起弯曲变形。因受材料特殊、部位特殊和受力结构性能特殊等因素的影响,变形后的腹管往往难以修复,对履带式起重机在吊物过程中构成极大的安全隐患。为此笔者制作了可伸缩顶压式吊
Crawler crane jib bending deformation of the pipe injury, mainly by the transport, storage and construction by the external force caused by. Abdominal tube is characterized by good toughness, light weight and wall generally thin, easily affected by external shocks after bending deformation. Due to the special materials, special parts and the structure of special forces and other factors, the deformation of the abdominal tube is often difficult to repair, crawler cranes hanging in the process constitute a great security risk. To this end I made a retractable top pressure hanging