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3M4730钢球精研机主轴研磨盘的无级调速,原来是通过涡流转差离合器的转子激磁来实现的。这种调速机构存在下列缺点:(1)原机处于开启式的转差离合器,其定子与转子配合间隙很小,装配精度要求高,维修时容易造成偏心,致使部分零件损坏,故维修性能差;(2)涡流转差转速特性软,故引入速度闭环调节,以稳定给定的转速。低速区的转差
3M4730 ball lapping machine spindle grinding disc stepless speed regulation, the original is through the eddy current slip clutch rotor excitation to achieve. This speed governing mechanism has the following disadvantages: (1) The original machine is in an open type slip clutch, the stator and rotor with a small clearance, high precision assembly requirements, maintenance is likely to cause eccentricity, resulting in some parts damaged, so maintenance performance Poor; (2) swirl slip speed characteristics of soft, so the introduction of speed closed-loop regulation, in order to stabilize the given speed. Low speed zone slip