韶山型电力机车双边传动牵引电动机均要求电机电枢能横向窜动(即电枢相对机座在轴向能够少量移动)以适应轮对横向窜动的需要。为满足长期运行后某些部件磨耗引起的误差,要求牵引电动机电枢有较大的横向窜动量。而牵引电动机在功率大,空间小的情况下,又不允许电枢有很大的横向窜动,这是一个矛盾。为此,要求牵引电机应合理设计,以使电枢能有最大的横向窜动量,并使其分布合理,又得到最充分的利用。同时要求轮对组装正确,消除不必要的偏差,使有限的窜动量得到最大的利用。窜动量的选择是电机各有关尺寸配合得 Both sides of Shaoshan electric locomotive driving traction motors require that the motor armature can move laterally (that is, the armature relative to the machine frame can move a small amount in the axial direction) to meet the need of lateral running of the wheelset. In order to meet the long-running wear of some parts of the error caused by traction motor armature requires a greater amount of lateral movement. The traction motor in the power, small space, but also does not allow a large lateral movement of the armature, which is a contradiction. Therefore, it is required that the traction motor should be designed reasonably so that the armature can have the largest amount of lateral movement and make it distributed reasonably and fully utilized. At the same time require the wheel assembly is correct, eliminate unnecessary deviation, so that limited the amount of movement to maximize the use. Traverse the amount of choice is the size of the motor with the relevant