起重机械是厂矿企业必备的设备,对它进行科学管理和正确使用,可以减轻工人体力劳动、提高劳动生产率、促进安全施工。然而,若在起重机械的设计、制造、管理和使用中存在缺陷,也会引起设备故障或人身伤害事故。我公司建厂以来就有25人因起重伤害丧生,占工亡总数的32%。因此,研究 Lifting machinery is an indispensable equipment for industrial and mining enterprises. Scientific management and proper use of it can reduce manual labor, increase labor productivity and promote safe construction. However, if there is a defect in the design, manufacture, management and use of the hoisting machinery, it may cause equipment malfunction or personal injury accident. Since the establishment of the company, 25 people have been killed and injured due to lifting, accounting for 32% of the total number of work-deaths. So, research