本文指出东风型机车牵引从动齿轮的失效形式主要是齿形偏差、磨耗过限、裂纹及剥离,主动齿轮的失效形式主要是剥离、齿形偏差、掉角及胶合。同时对牵引从动齿轮的失效原因进行了分析。为了提高机车检修质量,工厂根据多年修车实践,对牵引齿轮检修技术要求作了补充规定,明确了具体要求。 This paper points out that the main failure modes of the driven driven gear of Dongfeng locomotive are tooth profile deviation, excessive wear, crack and peeling. The main failure modes of driving gear are peel, tooth profile deviation, corner off and gluing. At the same time, the cause of the failure of traction driven gear was analyzed. In order to improve the quality of locomotive maintenance, the factory repair service for many years based on practice, traction gear overhaul technical requirements made provisions to specify the specific requirements.