IC697PWR711
IC697PWR711
IC697PWR711
伺服电机产生轴电流的原因及解决方法?是什么是伺服电机轴电流：伺服电机的轴---轴承座---底座回路中的电流称为轴电流。产生轴电流后会使电机轴承表面或滚珠受到侵蚀，形程点状
微孔，使轴承运转性能恶化，摩擦损耗和发热增加，终造成轴承烧毁。
伺服电机产生轴电流产生的原因：
(1)制造、安装不好，由于转子偏心造成气隙不匀;
(2)可拆式定子铁心两个半圆间有缝隙;
(3)有扇形叠成的定子铁心的拼片数目选择不合适。
(4)磁场不对称;
(5)供电电流中有谐波;
伺服电机产生轴电流的解决方法：
(1)电机设计时，将滑动轴承的轴承座和底座绝缘，滚动轴承的外圈和端盖绝缘。
(2)消除脉动磁通和电源谐波(如在变频器输出侧加装交流电抗器);
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