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分析了提速内燃机车走行部在运行中出现较多故障和破损的两个重要原因；提出了牵引齿轮轮齿周期啮合振动的概念及周期啮合振动频率的计算方法；归纳、分析了国内外内燃机车和电力机车牵引齿轮齿数比的大量数据；提出了机车牵引齿轮齿数设计的准则；提出了牵引齿轮齿数改进设计的建议。
This paper analyzes two important reasons that the running department of speeding diesel locomotives have more faults and breakages in operation. The concept of periodic meshing vibration of traction gear and the calculation method of periodic meshing vibration frequency are put forward. The domestic and international diesel locomotives And a large number of traction gear teeth ratio of electric locomotives; proposed locomotive traction gear tooth number design guidelines; proposed traction gear tooth number to improve the design recommendations.