以国内某厂轧钢用减速机过桥齿轮表面失效剥落为研究对象,对其过桥齿轮剥落机理进行分析和研究,考察其内在品质和承载能力,结合仿真分析,得出该减速机齿轮失效是由于材料热处理不符合要求及啮合偏载和超载使用的综合诱因造成,最终结合理论分析提出了相应的改进措施。 In this paper, the spalling of bridge gear on the gear reducer of a steel rolling mill in a factory was studied as the object of study. The spalling mechanism of the gear bridge was analyzed and studied. The internal quality and load carrying capacity of the bridge gear were investigated. With the simulation analysis, Due to the material heat treatment does not meet the requirements and the partial meshing and overloading caused by the use of a comprehensive incentive, the final theoretical analysis put forward the corresponding improvements.