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对一起门座起重机吊钩坠落事故进行了分析。分析表明:吊钩横梁两端的限位装置失效是造成这起事故的直接原因,吊钩的日常维护保和养不善是造成事故的间接原因,并提出类似事故的预防措施。
A door crane crane crashed accident was analyzed. The analysis shows that the failure of the limit device at both ends of the hook beam is the direct cause of the accident. The routine maintenance and improper maintenance of the hook is the indirect cause of the accident, and the preventive measures of similar accidents are proposed.