磁力泵磁性联轴器的磁场数值计算

磁性联轴器的结构参数、磁场情况关系到传递磁转矩的能力、磁力泵机组的效率和可靠性，因此有必要对磁性联轴器的内外磁钢转角、磁极数、轭铁厚度、气隙等参数及其构成的磁场进行深入研究。基于磁路设计的基本原理，采用ANSYS软件，探讨磁力泵磁性联轴器的磁场分布及其磁转矩的影响因素。通过磁场分析、建模，对其永磁磁场进行数值计算，结合实例计算出内外磁转子不同转角时的磁力线分布及其磁转矩、气隙内磁感应强度。分别研究在不同磁极、不同轭铁厚度时的磁场分布情况及不同气隙时的转矩值。磁力泵磁性联轴器的磁场数值计算具有重要的理论和实际应用价值。

NUMERICAL CALCULATION OF MAGNETIC FIELD IN MAGNETIC COUPLINGS OF MAGNETIC PUMP

The structure parameters and the magnetic field circumstance of magnetic coupling have influence on the ability of magnetic torque of the magnetic coupling,as well as the efficiency and reliability of the magnetic pump set,so it is necessary to study the distribution of magnetic field and the parameters of magnetic coupling such as circular angle, magnetic poles,yoke iron thickness,air gap,etc deeply.By the basic principle of the design of the magnetic circuit,to investigate the distribution of magnetic field in magnetic couplings and the factors affecting the magnetic torque of the magnetic pump,the ANSYS software is adopted for the numerical calculation of the permanent magnetic field.Based on the magnetic field analysis and modeling,the distribution of magnetic force line and the variety of magnetic intensity in the air gap have been calculated with the change of the circular angle between the outer and the inner magnets.The change of magnetic field distribution with different numbers of magnetic poles and different thickness of yoke iron and the change of torque with different air gaps have also been studied.The numerical calculation of the magnetic field in magnetic coupling of the magnetic pump is benefit to both the pump design and practical applications.