动臂塔式起重机幅度偏差分析

Analysis of amplitude deviation of luffing jib tower crane

动臂塔式起重机是风电吊装的重要基础设备,为了满足吊装工程项目中的需求,对动臂塔式起重机的工作性能提出更高的要求。动臂塔式起重机在不同工况下的工作幅度会出现偏差,该幅度偏差影响吊装性能。为了解决幅度偏差问题,文中研究分析了有关幅度偏差的因素,包括塔身顶部位移影响、起重臂头部位移影响以及变幅拉板等因素影响,通过实验现象分析和理论技术得出变幅拉板是工作幅度变化的主要影响因素。这一研究提高了塔式起重机吊装重物的平稳性,对提高塔式起重机的整体工作性能有至关重要的作用。

Luffing jib tower crane is an important basic equipment in the hoisting of wind power equipment.To meet the requirements of hoisting engineering,it is necessary to improve the working performance of luffing jib tower cranes.Under different working conditions,the working range of the luffing jib tower crane will be deviated,which will affect the hoisting performance.To eliminate the amplitude deviation,the factors related to the amplitude deviation were analyzed,including the displacement of the top of the tower,the displacement of the head of the boom and the luffing plate.The experimental phenomenon analysis and theoretical technology show that the luffing plate is the main factor leading to the variation of the working amplitude.This research improves the stability of tower crane when lifting heavy objects,which is very important to improve the overall working performance of tower crane.