电梯上行超速保护装置探讨及案例分析

Discussion on Elevator Overspeed Protection Means of Ascending Car and Analysis of a Case

摘要：对安装电梯上行超速保护装置的必要性以及上行超速保护装置的各种类型进行了探讨；分析了电梯发生上行超速的原因；针~,II-行超速保护装置的类型及特点，探讨了如何开展检验；通过检验案例分析了一些上行超速保护装置的失效原因以及存在的问题，提出了解决方法。

Abstract： This paper discusses the necessity, the various types and the inspection of the elevator overspeed protection means of ascending car. The possible overspeed causes of the ascending car is analyzed.The paper also discusses the failure reasons, the existing problems of the overspeed protection means for most of ascending cars and puts forward the solving way.