Effects of Strand Lay Direction and Crossing Angle on Tribological Behavior of Winding Hoist Rope.
Effects of Strand Lay Direction and Crossing Angle on Tribological Behavior of Winding Hoist Rope.
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DOI：
10.3390/ma10060630
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发表时间：
2017-06-09
期刊：
影响因子：
--
通讯作者：
Xu CM
中科院分区：
文献类型：
--
作者：
Chang XD;Peng YX;Zhu ZC;Gong XS;Yu ZF;Mi ZT;Xu CM
缠绕在多层缠绕式提升机卷筒上的提升钢丝绳之间存在摩擦磨损行为。它降低了钢丝绳的使用寿命，威胁着矿井安全。利用自制的摩擦磨损试验台，研究了钢丝绳股捻向和交叉角对钢丝绳摩擦磨损性能的影响。结果表明，稳态阶段摩擦系数随两个交叉方向交叉角的增大均呈减小趋势，但不同交叉方向的变化幅度不同。使用热成像，高温区域总是沿着股捻方向分布在相邻股之间的差距中，因为横向与股捻方向相同（右交叉接触）。此外，在稳态的温升增加的交叉角在两个方向上的增加。不同交叉方向下的磨痕形态差异明显，尤其是大交叉角试验。右交叉时磨损量的变化幅度大于左交叉时的变化幅度。磨损表面的损伤形式主要有犁沟、凹坑、塑性变形和疲劳断裂。磨损机制主要是粘着磨损、磨粒磨损和疲劳磨损。
Friction and wear behavior exists between hoisting ropes that are wound around the drums of a multi-layer winding hoist. It decreases the service life of ropes and threatens mine safety. In this research, a series of experiments were conducted using a self-made test rig to study the effects of the strand lay direction and crossing angle on the winding rope’s tribological behavior. Results show that the friction coefficient in the steady-state period shows a decreasing tendency with an increase of the crossing angle in both cross directions, but the variation range is different under different cross directions. Using thermal imaging, the high temperature regions always distribute along the strand lay direction in the gap between adjacent strands, as the cross direction is the same with the strand lay direction (right cross contact). Additionally, the temperature rise in the steady-state increases with the increase of the crossing angle in both cross directions. The differences of the wear scar morphology are obvious under different cross directions, especially for the large crossing angle tests. In the case of right cross, the variation range of wear mass loss is larger than that in left cross. The damage that forms on the wear surface is mainly ploughing, pits, plastic deformation, and fatigue fracture. The major wear mechanisms are adhesive wear, and abrasive and fatigue wear.
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影响因子：
5
作者：
Peng Yu-xing;Chang Xiang-dong;Xu Wen-xue
通讯作者：
Xu Wen-xue
影响因子：
5
作者：
Pearson, S. R.;Shipway, P. H.
通讯作者：
Shipway, P. H.
影响因子：
5
作者：
Chen, Yuanpei;Meng, Fanming;Gong, Xiansheng
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Gong, Xiansheng
影响因子：
4.8
作者：
Ma, W.;Zhu, Z. C.;Chen, G. A.
通讯作者：
Chen, G. A.
影响因子：
6.2
作者：
Wang, Dagang;Zhang, Dekun;Ge, Shirong
通讯作者：
Ge, Shirong