凹坑织构化81107轴承变载摩擦磨损性能研究
Research on Variable Loads Friction and Wear Performance of 81107 Bearings with Pits Textured
金志浩 1韩辉 1龙日升 1张义民1
作者信息
- 1. 沈阳化工大学装备可靠性研究所,辽宁 沈阳 110142
- 折叠
摘要
为了探究变载条件下凹坑织构化轴承的摩擦磨损性能,以81107TN推力圆柱滚子轴承为研究对象,通过在轴圈表面制备不同直径和不同深度的凹坑型织构,利用MMW-1A型万能摩擦磨损试验机,在阶梯渐进增长式载荷和贫油条件下进行试验.通过分析和对比试验后的摩擦系数、磨损量以及表面形貌,发现:直径250μm、深度20μm的凹坑织构化轴承表现出良好的摩擦磨损性能,其平均摩擦系数上升时间点比光滑无织构轴承滞后6000s,磨损量相比光滑无织构轴承降低7％;这里的条件下,变载荷条件下轴承的平均摩擦系数比恒定载荷低,最大差值为0.031,且后期变载荷轴承平均摩擦系数更稳定,变载荷轴承磨损量相比恒定载荷轴承也减少了7.3％.
Abstract
In order to explore the friction and wear performance of the pit-textured bearing under variable load conditions,the 81107TN thrust cylindrical roller bearing was taken as the research object.The pit-shaped texture of different diameters and dif-ferent depths was prepared on the surface of the shaft ring,use MMW-1A universal friction and wear testing machine to test un-der the condition of stepwise incremental load and starved lubrication.Through analysis and comparison of friction coefficient,wear amount and surface morphology after the test.It is found that the pit-textured bearing with a diameter of 250μm and a depth of 20μm exhibits good friction and wear performance.The average friction coefficient rise time point is 6000s later than that of a smooth non-textured bearing,and the amount of wear is reduced by 7％ compared with a smooth non-textured bearing.Un-der the conditions of this article,the average friction coefficient of the bearing under the variable load condition is lower than the constant load,the maximum difference is 0.031,and the average friction coefficient of the variable load bearing in the later stage is more stable,and the wear of the variable load bearing is also reduced by 7.3％compared with the constant load bearing.
关键词
凹坑织构/滚动轴承/摩擦磨损/贫油润滑Key words
Pit Texture/Rolling Bearing/Friction and Wear/Starved Lubrication引用本文复制引用
基金项目
辽宁省自然科学基金面上项目(2019-MS-258)
辽宁省教育厅项目(LJ2019003)
国家自然科学基金(U1708254)
出版年
2024
NETL
NSTL
万方数据