• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2019, Vol. 55 ›› Issue (7): 110-118.doi: 10.3901/JME.2019.07.110

• 摩擦学 • 上一篇    下一篇

基于微动磨损预测矿井提升钢丝绳安全系数

张俊1, 葛世荣1,2, 王大刚1,2, 张德坤3   

  1. 1. 中国矿业大学机电工程学院 徐州 221116;
    2. 中国矿业大学江苏省矿山智能采掘装备协同创新中心 徐州 221116;
    3. 中国矿业大学材料科学与工程学院 徐州 221116
  • 收稿日期:2018-04-19 修回日期:2018-09-17 出版日期:2019-04-05 发布日期:2019-04-05
  • 通讯作者: 葛世荣(通信作者),男,1963年出生,博士,教授,博士研究生导师。主要研究摩擦学与可靠性、矿山机器人等。E-mail:gesr@cumt.edu.cn
  • 作者简介:张俊,男,1994年出生。主要研究微动磨损。E-mail:zhangjun@cumt.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(51405489;51375479)。

Prediction of the Safety Factor of Mine Hoisting Rope Based on Fretting Wear

ZHANG Jun1, GE Shirong1,2, WANG Dagang1,2, ZHANG Dekun3   

  1. 1. School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116;
    2. Jiangsu Collaborative Innovation Center of Intelligent Mining Equipment, China University of Mining and Technology, Xuzhou 221116;
    3. School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116
  • Received:2018-04-19 Revised:2018-09-17 Online:2019-04-05 Published:2019-04-05

摘要: 为预测矿井提升过程中钢丝绳动态安全系数演变,针对浅井低载荷矿井提升机,运用动力学理论和摩擦传动理论获得了距离容器不同位置处钢丝绳动张力,建立了接触钢丝总磨损系数与钢丝间接触载荷、相对滑移和交叉角的关联模型,提出了矿井提升钢丝绳的磨损演化及承载安全系数预测方法,探究不同工况参数对钢丝绳磨损及承载安全系数的影响规律。结果表明:随着提升循环次数的增加,距容器不同位置处提升钢丝绳的横截面微动磨耗面积增大、安全系数降低;钢丝绳悬垂中间位置处,提升钢丝绳承载安全系数下降较快;提升钢丝绳承载安全系数对提升工况参数存在依赖性,随着提升侧终端质量的增加和最大提升速度的减小,提升钢丝绳承载安全系数均呈降低趋势。

关键词: 安全系数, 动态磨损, 矿井提升钢丝绳, 微动磨损

Abstract: The evolution of dynamic safety factor of hoisting rope used in a shallow coal mine with the small terminal load is predicted in this study. Dynamic tensions of rope segments at different distances from the container are obtained employing kinetic theory and friction transmission theory. Correlation model between the total wear coefficients and contact load, relative slip and the crossing angle is established. Therefore, dynamic wear evolution and the safety factor of hoisting rope are calculated. Meanwhile, effects of parameters of working conditions on dynamic wear evolution and the dynamic safety factor of hoisting rope are explored. The results show that increases of hoisting cycles induce increased worn area of the cross-sections, and decreased safety factor of hoisting rope at distinct distances from the container. The dynamic safety factor of hoisting rope decreases rapidly in the middle location of vertical rope. The dynamic safety factor of hoisting rope correlates with hoisting parameters. An increase of terminal mass at the lifting side and a decrease of maximum hoisting speed are both induce decreased dynamic safety factor of hoisting rope.

Key words: dynamic wear, fretting wear, mine hoisting rope, safety factor

中图分类号: