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为适应三峡左岸电站14台单机容量为700MW 巨型水轮发电机组的转子、定子等大型关键设备的安装和检修,由太原重型机械集团有限公司研制了世界上最大起重量1200/125t 桥式起重机。该机曾获得中国机械工业科学技术一等奖,该机除单钩起重量世界上最大外,其技术亦有下列创新之点:①首次采用了双电机、四卷筒、对称布置行量减速器主起升机构;②主减速器底座采用一端固定、一端滑动的连接方式;③首次采用了单联、双层缠绕卷筒和多根钢丝绳受力自平衡系统;④首次采用了桥架强度和刚度实时检测与监控系统.在桥架结构上首次采用三梁四轨桥架、双小车结构、超低铰接结构端梁,在主起外机构
In order to meet the installation and maintenance of 14 large-scale key equipment such as the rotor and stator of the 14MW single-terminal capacity of 700MW giant turbine generator set at the Three Gorges Left Bank Power Plant, Taiyuan Heavy Machinery Group Co., Ltd. has developed the world’s largest lifting capacity of 1200 / 125t overhead traveling crane. The machine has won the first prize of China Machinery Industry Science and Technology, except for the single hook lifting the world’s largest, its technology also has the following innovative points: ① for the first time using a dual motor, four drums, the symmetrical layout of row deceleration The main lifting mechanism; ② The main reducer base with one end of the fixed, one end of the sliding connection; ③ For the first time using a single, double winding drum and multiple wire rope force self-balancing system; ④ For the first time using the bridge strength and Stiffness real-time detection and monitoring system in the bridge structure for the first time using three-beam four-track bridge, double trolley structure, ultra-low articulated structure end beam,