一、概况大功率电力机车采用轴支式悬挂的牵引电动机和刚性齿轮传动时,由于抱轴瓦间隙等原因,在齿轮工作状况下,电枢轴和车轴的弯曲弹性变形不可避免,从而引起齿轮工作中的“偏载”,即沿齿向的接触压力分布不均匀和增加点面的偏磨。这不仅使刚性齿轮过早损坏,而且由于齿轮的偏磨,齿轮啮合中必然出 I. Overview High-power electric locomotive with shaft-type suspension traction motor and rigid gear drive, due to the axle bearing pad clearance and other reasons, the gear working conditions, the armature shaft and axle bending elastic deformation is inevitable, resulting in gear work In the “partial load”, that is along the tooth contact pressure distribution uneven and increase the point of surface wear. This not only causes premature rigid gear damage, but also due to partial wear gear, the gear mesh inevitable