Sliding friction and wear behavior of winding hoisting rope in ultra-deep coal mine under different conditions
Sliding friction and wear behavior of winding hoisting rope in ultra-deep coal mine under different conditions
复制标题
DOI：
10.1016/j.wear.2016.10.012
复制
发表时间：
2016-12-15
期刊：
影响因子：
5
通讯作者：
Xu Wen-xue
中科院分区：
文献类型：
--
作者：
Peng Yu-xing;Chang Xiang-dong;Xu Wen-xue
超深井提升钢丝绳缠绕卷筒时存在多层缠绕的磨损问题。磨损直接降低了提升钢丝绳的寿命，进而威胁到矿井安全。利用自行设计的试验装置对提升钢丝绳缠绕摩擦磨损进行了研究，研究了不同接触载荷、交叉角和位移幅值对钢丝绳摩擦磨损的影响。结果表明，在稳态期间的摩擦系数（COF）的变化很小，随着接触载荷的增加，它稳定在0.61左右。此外，随着交叉角的增加，COF略有下降。当滑动运动的幅度增加到30 mm和50 mm时，COF线性增加。利用热成像，在稳态期间的温升增加的接触载荷和交叉角。最大磨损深度随接触载荷的增加而线性增加。然而，磨损深度变化很小，当振幅小于30 mm，但它迅速增加，直到70 mm的振幅。没有润滑的绳索的主要磨损机制包括粘着磨损，磨粒磨损和疲劳磨损。(C)© 2016 Elsevier B.V.版权所有。
Wear problems exist in multi-layer windings of ultra-deep coal mine hoisting ropes that are wound around drums. Wear decreases the life of such hoisting ropes directly, and that in turn threatens mine safety. An investigation of winding hoisting ropes was conducted using a custom test rig to study the effects of different contact loads, crossing angles and displacement amplitudes on rope friction and wear. Results show that the coefficient of friction (COF) in the steady-state period changes very little with an increase in contact load and that it stabilizes at about 0.61. Additionally, the COF slightly decreases with an increase of crossing angle. As the amplitude of sliding motion increases to 30 mm and 50 mm, the COF increases linearly. Using thermal imaging, the temperature rise in the steady-state period increases with the contact load and crossing angle. Moreover, the maximum wear depth increases linearly with an increase of contact load. Nevertheless, the wear depth changed very little when the amplitude is less than 30 mm, but it increases rapidly until an amplitude of 70 mm. The major wear mechanisms of ropes without lubrication include adhesive wear, abrasive wear and fatigue wear. (C) 2016 Elsevier B.V. All rights reserved.