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机构地区:[1]中南大学机电工程学院,湖南长沙410083 [2]中信重工机械股份有限公司,河南洛阳471039
出 处:《计算机仿真》2017年第1期220-226,共7页Computer Simulation
基 金:国家重点基础研究发展计划("973"计划)项目(2014CB049402)
摘 要:超深矿井提升机卷筒结构受力复杂、工况多,合理的卷筒结构参数对于提高提升系统的可靠性至关重要,而目前仍存在资源浪费、稳定性差等诸多难题。为解决上述问题,根据板壳理论,将提升机卷筒视为均匀受压的旋转对称壳体,通过对卷筒结构负荷构成进行分析,提出了卷筒筒壳、端侧板及制动盘上载荷的计算方法。运用有限元数值仿真和理论分析相结合的方法,得出卷筒结构在不同工况下的应力分布规律及变形情况。为满足卷筒重量最轻和卷筒两支轮应力差最小,分别对卷筒壁厚和支轮位置进行优化,确定最佳壁厚值及最优支轮位置。研究结果表明,卷筒的应力分布与钢丝绳缠绕卷筒的层数密切相关,卷筒结构在优化后减轻了重量,提高了提升系统的可靠性。Ultra-deep mine hoist drum has complex structure and multi-condition. It is important to design reasonable drum structure parameters for improving the reliability of hoisting system. But there still are some waste of resources, poor stability, and many other problems. On the basis of the theory of plates and shells, the hoist drum was regarded as rotational symmetric shell in the paper. Through analyzing load structure of the drum, the load calculation methods of drum shell, end plate and the brake disc were proposed. The stress distribution and deformation under different working eonditions of the drum were obtained using the finite element numerical simulation and theoretical analysis. In order to meet the lightest weight of the drum and the smallest stress difference of two supporting wheels of the drum, the thickness of the drum and the position of the supporting wheel were optimized to get the optimal value of the wall thickness and the position of the supporting wheel. The results indicate that the distribution of stress of the drum is closely related to the number of layers of wire rope winding reel. The drum structure has reduced the weight and improved the reliability of the hoisting system after being optimized.
分 类 号:TP391.9[自动化与计算机技术—计算机应用技术]
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