桥架型起重机吊钩限位装置可靠性分析

An Analysis of Reliability of Bridge Crane' Hook Postion limiting Devices

通过对桥架型起重机几种吊钩限位器结构、性能分析，重点剖析了ＳＧＨＫⅢ型天车吊钩上、下限位安全保护装置的设计的多种功能。该装置集机、电、声、光于一体，并具有结构先进合理，保险系数高，人机互控观念新，维护方便等优点，备受业内人士泛关注，已成为当桥架起重机械安全运行，避免发生过卷事故的有效技术保障。

Based on the analysis of the features and performances of several bridge-crane hook position limiting devi-ces, the author focuses discussion on the design and function of the safeguards upper and lower postion limiting devices of SCHK crane hook , into which mechanism , electronics , acoustics , and optics are integrated . They have many advan-tages such as advanced and rational structure , high safety coefficient , new man-machine control idea, and easy main-tenance, hold the related figures' great interest , and become an effective tech guarantee against excessive reeling-up acci-dent when the crane working.\=