The magnetic bearings with characteristic of no mechanical contact have some advantages which are no friction, no need of lubrication and long service life, meanwhile eliminate the mechanical wear and friction. Therefore a support method for the implantable maglev blood pump is proposed. The support system was contained of two axial permanent magnetic bearing and a radial magnetic bearing to realize stable maglev of the rotor. The theoretical analysis was performed to complete the structural design and simulation analysis of the axial permanent magnetic bearing. The changes of bearing’s stiffness and load capacity were analyzed by changing the number of permanent magnetic ring of axial bearing. The results show especially, the support system can satisfy the requirement of the blood pump when static and dynamic magnetic rings of the axial bearing each uses a pair of permanent magnet rings.
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杨石平,任永武,余海涛.可植入血泵磁悬浮支承结构设计与研究[J].机床与液压,2018,46(1):87-90. . Design and Research of Maglev Supporting for Implantable Blood Pump[J]. Machine Tool & Hydraulics,2018,46(1):87-90