轮缘固体润滑剂对轮轨减摩性能影响试验研究

 宋靖东1,2,程焯1,王文健1,郭俊1,刘启跃1

(1.西南交通大学 摩擦学研究所,四川 成都 610031;2.西南交通大学唐山研究生院,河北 唐山 063000)
摘要:利用MJP-30A滚动接触疲劳试验机完成试验工作,针对不同固体润滑剂的作用工况,分析摩擦力矩和摩擦系数随着试验力的变化,探究试验力对摩擦系数的影响;分析干态和两种不同固体润滑剂作用后的轮轨摩擦性能和固体润滑剂的有效作用时间,探究固体润滑剂的使用性能;分析固体润滑剂的磨损率和附着率情况,探究固体润滑剂的最佳应用性能。结果表明:随着试验力变大,摩擦力矩近乎呈线性增大,摩擦系数先降低后趋于平稳;随着蠕滑率增大,1#润滑剂的摩擦系数先达到0.2左右,后趋于平稳;两种固体润滑剂的有效作用时间均相近,均为4分钟左右,1#润滑剂的磨损率较小,1#润滑剂在轮轨试样界面的附着率也优于2#固体润滑剂。
关键词:固体润滑剂;摩擦系数;应用性能
中图分类号:U213.4+2 文献标志码:A doi:10.3969/j.issn.1006-0316.2018.09.009
文章编号:1006-0316 (2018) 09-0055-04
Experimental Study of Effect of Wheel Flange Solid Lubricants on Friction Reduction Performance of Wheel/Rail
SONG Jingdong1,2,CHENG Zhuo1,WANG Wenjian1,GUO Jun1,LIU Qiyue1
( 1.Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China; 2.Tangshan Graduate School of Southwest Jiaotong University, Tangshan 063000, China )
Abstract:The MJP-30A rolling fatigue testing machine was used to complete all the test work. According to the working conditions of different solid lubricants, the friction torque and coefficient of friction are analyzed with the test force, and the coefficient of friction was investigated. Influence; Analyze the effect of dry condition and wheel-rail friction performance of two different solid lubricants and the effective action time of solid lubricants, explore the influence of different solid lubricants on applicant performance; analyze the solid lubricants wear rate and adhesion rate, to study the best application performance of solid lubricants. The results show that as the test force becomes larger, the friction torque increases almost linearly, the coefficient of friction decreases firstly and then stabilizes; with the increase of creep rate, the coefficient of friction of 1# lubricant first reaches about 0.2, and then tends to be stable; the effective action time of the two solid lubricants are similar, both are about 4 minutes, and the wear rate of 1# lubricant is small. The adhesion rate of 1# lubricant at the interface of wheel and rail sample is also better than that of 2# solid lubricant.
Key words:solid lubricant;coefficient of friction;performance of application
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收稿日期:2018-07-02
基金项目:四川省重点研发计划项目(2018GZ0368);四川省高校科研创新团队资助项目(18TD0005)
作者简介:宋靖东(1988-),男,山东临沂人,硕士研究生,主要研究方向为轨道交通轮轨界面摩擦调控。
 

 

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