Abstract: Through principle analysis and trouble comparison about limited moment coupler and saving electricity protecting coupler,this paper affirms the advantage using saving electricity protecting coupler in mine machinery.

• 文摘:通过把限矩型液力联轴器与节电保护联轴器进行原理分析和故障比较，从而肯定节电保护联轴器在矿山机械中应用的优越性。