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通过对车轴齿轮箱一轴密封装置的分析、计算，发现在设计上存在的问题，找到了东方红（21）、（2）、（5）型三种机车车轴齿轮箱一轴轴颈漏油的主要原因，针对存在问题实施相应的解决措施，收到了显著效果。
Through the analysis and calculation of a shaft sealing device of the axle gearbox, we found that there are some problems in the design. One of the three axle axleboxes of Dongfanghong (21), (2) and (5) The main reason for the implementation of the corresponding problems in solving the problem, has received significant results.