矿用永磁耦合联轴器过载保护实验研究

 摘要：本文利用Ansoft maxwell有限元模拟分析及实验,研究应用于煤矿井下的磁力耦合联轴器的过载保护问题,并通过实验数据绘制出机械特性曲线。从机械特性曲线可以看出：输出扭矩值在达到磁力耦合器的最大转矩后,随着转差增大,输出转矩、转速降低,电动机的输入功率小于电动机在最大转矩时的功率,说明此磁力耦合联轴器具备过载保护性能。

The study of overload protection for mine permanent magnetic coupling

AbstractUsing Ansoft maxwell simulation analysis and experimental, research the overload protection problem for magnetic coupling applied to coal, and plotted the mechanical characteristics curve through experimental data。The conclusion can be gained from mechanical characteristic curve: when the output value of torque reaches the maximum torque of magnetic coupling, the output torque and speed dropped with the slip increases, motor input power was less than the power when the motor torque was at the maximum, this explained that the magnetic coupling has the function for overload protection.