新型耐高温磁力联轴器的研制

Research of a New type Resisting High Temperature Magnetic Coupling

同步磁力联轴器已在化工、制药等部门得到广泛应用 ,但目前同步磁力联轴器一直存在内磁钢在高温下退磁而引起磁力联轴器不能正常工作的问题。该文运用鼠笼式异步电动机工作原理 ,设计了一种新型磁力联轴器 ,可有效解决这个问题。采用有限元方法分析了该新型磁力联轴器的内部磁场分布 ,计算了转矩和内外转子间的转速差并与实测值进行了比较。实验结果表明 。

Synchronous magnetic couplings have been widely used in chemical industry, pharmacy and etc. If the working temperature is high, a synchronous magnetic coupling may not operate in normal state because of the demagnetization of magnets on its internal rotor. This problem has been a trouble for a long time. A new type magnetic coupling which works according to the operating principles of squirrel cage asynchronous motors can solve this problem effectively. Finite element method is used to determine the magnetic field distribution of this new type magnetic coupling. The calculated results of torque and the difference between the rotation speeds of internal rotor and external rotor are compared with the experimental results. The experimental results indicate that this design is practicable.