电磁粉末刹车用于机器制动能提高短暂剧烈制动时的稳定性,常用于发动机的负载装置,以及离合器的极限扭矩。这种刹车由带有圆环形工作腔的导磁体1、激磁线圈2、转子3、外衬套4、内衬套5和输出轴7组成。在转子3上有孔6,转子内、外表面有相互反向的螺旋槽(例如,外表面为左向,则内表面为右向),外衬套4由热敏磁性材料制成,铁磁粉末被充入到转 Electromagnetic powder brake for machine braking can improve the stability of the short-term braking, commonly used in the engine load device, and the clutch torque limit. This brake consists of a magnetically permeable body 1 with an annular working chamber, an excitation coil 2, a rotor 3, an outer bushing 4, an inner bushing 5 and an output shaft 7. There is a hole 6 in the rotor 3, the inner and outer surfaces of the rotor have mutually opposite spiral grooves (for example, the outer surface is the left direction and the inner surface is the right direction), and the outer sleeve 4 is made of a thermosensitive magnetic material. The iron Magnetic powder is filled into the turn