翻车机架体结构不合理,是长期存在的问题。因而引起一些薄弱点的应力太高,经常损坏,而大部分构件又太笨重。 本文介绍了翻车机结构力学模型的选取,对翻车机以空间刚架结构进行了矩阵分析,和进行了节点强度、杆件最大应力的分析。指出现在翻车机在计算及结构设计中存在的问题。找到了现用翻车机的薄弱环节,损坏原因及浪费金属的根源。 The unreasonable structure of the rolling frame is a long-standing problem. As a result, the stress at some weak points is too high, often damaged, and most of the components are too bulky. In this paper, the selection of the mechanical model of the dumper is introduced. The matrix analysis of the dumper is carried out with the spatial rigid frame structure, and the strength of the joint and the maximum stress of the member are analyzed. Point out the problems existing in the calculation and structural design of the dumper. Found the weak point of the current dumper, the cause of the damage and the root cause of the waste of metal.