自爬式液压顶升装置设计及结构稳定性分析

Design of Self-climbing Hydraulic Jacking Device and Analysis of the Structural Stability

大型电机的吊装难点是移动平稳、制动准确、安装精度高、被吊构件超重、施工空间狭小等。为此,需要设计自爬式液压顶升装置,以满足施工安全性和成本控制的要求。此装置在设计上的难度主要是要满足复杂的施工使用工况、液压同步技术和装置系统的整体稳定性设计。根据顶升安装工程施工的实际情况,研究确定支架结构可能存在的初始几何缺陷,简化并建立合理的顶升支架结构数值计算模型,分析顶升支架结构的极限承载能力。

Moving smoothly,accurate braking,high installation accuracy,hanging member overweight,construction of small space are the difficulties in lift-up of the large motor.Therefore,it is necessary to design the self-climbing type hydraulic jacking device to meet the construction safety and cost control requirements.The device in the design of the difficulty is mainly to meet the whole stability design of the complex construction condition,hydraulic synchronous technology and device system.According to the actual conditions of the jacking installation engineering,this article researched and decided the initial geometry imperfections that the frame structure possibility existed,simplified and built a reasonable numerical model of the jacking frame structure,analyzed the performance of the jacking frame structure in different load.