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分析了影响齿轮副侧隙的因素，针对准高速机车牵引齿轮传动的实际情况，计算了齿轮副侧隙，并对牵引齿轮工作过程中侧隙情况进行了分析。
The factors influencing the gear backlash were analyzed. According to the actual situation of the traction gear transmission of quasi-high speed locomotive, the backlash of gear pair was calculated and the backlash of the gear was analyzed.