In this paper,the influence of the immersion depth on the churning loss of a practical spur gear used in the high speed train is studied by using experiential equations at different train speeds.

• 本文针对中国南车集团开发的高速列车传动齿轮箱,采用经验公式,计算分析了在不同转速下,齿轮箱浸油深度对搅油损失的影响。