摘要
多绳摩擦提升机是连接矿下与地上的唯一枢纽,保证其安全性至关重要,但针对多绳摩擦钢丝绳张力的相关研究较少。以提升系统中的钢丝绳为研究对象,对已有文献中的钢丝绳张力公式进行改进;通过现场实测得到钢丝绳张力的试验值,对改进后的公式进行数值模拟并与试验值以及改进前的公式对比分析;最后当容器满载时对井架结构进行动力响应分析。结果表明:改进后钢丝绳张力公式计算的理论值和试验值的最大张力差为7.6376%,和改进前公式的最大张力差为0.0703%,吻合较好。提升系统运行瞬间加载点在水平X、竖直Y方向的振幅迅速增大至峰值后急剧下降,而后慢慢趋于平缓。
Multi-rope friction hoist is the only hub connecting the underground and the ground,and it is very important to ensure its safety.However,there is little research on the tension of multi-rope friction wire rope.Taking the wire rope in the hoisting system as the research object,the tension formula of wire rope in the existing literature is improved.The experimental value of wire rope tension is obtained through field measurement,and the improved formula is numerically simulated and compared with the experimental value and the formula before improvement.Finally,the dynamic response of the derrick structure is analyzed when the container is fully loaded.The results show that the maximum tension difference between the theoretical value and the experimental value calculated by the improved wire rope tension formula in this paper is 7.6376%,and the maximum tension difference between the improved formula and the original formula is 0.0703%,which is in good agreement.The amplitude of the loading point in the horizontal X and vertical Y directions at the moment of operation of the hoisting system increases rapidly to the peak value and then drops sharply,and then gradually tends to be flat.
作者
申跃奎
朱新雨
李泽纬
李洋
SHEN Yuekui;ZHU Xinyu;LI Zewei;LI Yang(College of Civil Engineering,Xian University of Architecture and Technology,Xi'an 710055,China;COFCO Engineering&Technology(Zhengzhou)Co.,Ltd.,Zhengzhou 450053,China)
出处
《结构工程师》
2024年第5期11-18,共8页
Structural Engineers
关键词
矿业工程
多绳缠绕提升
钢丝绳张力
动态仿真
位移响应
mining engineering
multi-rope winding lifting
wire rope tension
dynamic simulation
displacement response
