塔筒下法兰辅助吊具的改进

Improvement of flange auxiliary sling under tower

塔筒是风机设备的必要部件,在吊装安装塔筒时要使其从水平状态转体为直立状态,塔筒下部的吊装采用传统吊具不仅通用性不强,而且操作繁琐、效率较低。新设计的下法兰辅助吊具由小吊耳、吊钩主体、吊钩转子、档杆、塔筒壁防撞板、转子侧托、转子底托、主吊耳、拉伸气弹簧、压制钢丝绳、导向滑轮、转子吊耳和夹紧螺栓组成。辅助吊具不再采用传统的螺栓连接,改用机械夹紧方式,具备脱钩功能。给出改进前后吊具结构图,说明设计原理和工作过程,使用证明该吊具安全可靠、操作简便。

Tower is a necessary part of fan equipment. When tower is being hoisted and installed,its position changes from horizontal to vertical condition,the universality of traditional sling adopted in hoisting under tower is not strong,operation is complex,and efficiency is low. The flange auxiliary sling newly designed is made up of small lifting lug,hook body,hook rotor,shift,tower wall anti-collision board,rotor bracket,main lifting lug,pull stretch gas spring,compressible wire rope,leading sheave,rotor lifting lug and clamping bolt. The auxiliary sling no longer adopts traditional bolt connection,changes mechanical clamping method,has unhook function. The sling structure diagram before and after improvement is given out,design principle and work process is illustrated,usage proves that the sling is safe and reliable,easy operation.