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２００１年２月１２日，胜利石油管理局某单位的一台起升高度为２４米的５吨单梁桥式起重机葫芦小车上的减速器在使用过程中发生坠落事故。 现场勘察发现： １．吊钧停在２２．５米处的高度，卷筒上的钢丝绳杂乱，在卷筒与减速器凹槽间隙内侧乱绳达１０余圈，有明显的新挤压变?
On February 12, 2001, a gear unit on a hoist trolley of a 5-ton single-girder overhead crane with a lifting height of 24 meters at a unit of Shengli Petroleum Administration Bureau was dropped during its use. Site survey found: 1. Kwan Jun stopped at a height of 22.5 meters, the rope on the drum messy, in the drum and reducer groove gap within 10 laps, there is a clear new squeeze change?