A special clutch is needed in a special instrument, which takes charge of coupling and separating two mechanical shifts at high rotating speed. A novel non-contact electromagnetic clutch is designed in this paper. The working principle is based on tooth slot resistance effect. It has outstanding advantages of non-contact, low noise automatic overload protection, and is very suitable for high speed usage. The clutch is studied about principle analysis, and model simulation in Ansoft. A prototype is manufactured and tested. It is proved by experiments that the working principle of the designed clutch is correct, and it has good prospect in practical engineering application.%在所研制的设备中需要用到一个离合器，完成高速状态下二段机械轴的耦合与分离。本文设计了一种新型的无接触式电磁离合器，它基于齿槽作用机理，具有非接触、低噪声、自动过载保护等特点，且适宜于高速运行。文中进行了该电磁离合器的原理分析，并利用Ansoft软件进行了建模和仿真计算，最后研制了样机并完成了实验测试。实验结果证明，该新型电磁离合器原理是正确的，具有很好的工程实用价值。
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