The invention belongs to the technical field of bridge hoisting and hoisting, and particularly relates to a hoisting tool provided with a movable lower lifting lug and a hoisting method. The lifting appliance comprises an upper lifting lug steel wire rope mechanism, an upper lifting lug, a lifting appliance main beam part, a movable lower lifting lug, a sliding block adjusting mechanism and a lower lifting lug steel wire rope, the upper lifting lug is connected to the upper surface of the lifting appliance main beam part; the sliding block adjusting mechanism is connected to the side surface of the movable lower lifting lug; the movable lower lifting lug is connected with the sliding block adjusting mechanism and is connected to the lifting appliance main beam part in a sliding manner; and the lower lifting lug steel wire rope is connected to the movable lower lifting lug. The invention provides a lifting appliance which is stable in structure, low in manufacturing cost and high in operability. By means of the lifting appliance, lifting and hoisting of the variable cross-section segments can be safely and stably completed, repeated and turnover utilization of the lifting appliance is achieved, the construction risk is effectively reduced, and the on-site construction efficiency of the large-tonnage segments is guaranteed.
本发明属于桥梁起重吊装技术领域,具体涉及一种设有可移动下吊耳的吊具及吊装方法。本发明包括上吊耳钢丝绳机构、上吊耳、吊具主梁部、可移动下吊耳、滑块调整机构和下吊耳钢丝绳;上吊耳连接在吊具主梁部的上表面上;滑块调整机构连接在可移动下吊耳的侧表;所述的可移动下吊耳与滑块调整机构连接,并可滑动的连接在吊具主梁部上;所述的下吊耳钢丝绳连接在可移动下吊耳上。本发明提供了一种结构稳定、制造成本低、可操作性强的吊具。使用本发明,可以安全稳定的完成变截面节段的提升及吊装,实现吊具重复、周转利用,有效的降低施工风险,保证大吨位节段的现场施工效率。
Lifting appliance with movable lower lifting lug and lifting method
一种设有可移动下吊耳的吊具及吊装方法
2023-12-22
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Lifting appliance lifting method, lifting appliance and crane
European Patent Office | 2022
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