面向钢轨砂带打磨的砂带磨耗过程建模

王文玺; 李建勇; 樊文刚; 何喆

doi:10.3969/j.issn.0258-2724.2017.01.020

面向钢轨砂带打磨的砂带磨耗过程建模

doi: 10.3969/j.issn.0258-2724.2017.01.020

基金项目:

中国铁路总公司科技研究开发计划资助项目（2015G003-G）

详细信息

作者简介:
王文玺(1990-),男,博士研究生,研究方向为高效精密磨削技术,电话:010-51685015,E-mail:14116345@bjtu.edu.cn

通讯作者:
樊文刚(1985-),男,副教授,博士,研究方向为数字化装备与制造,E-mail:wgfan@bjtu.edu.cn

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出版历程
- 收稿日期: 2016-06-07
- 刊出日期: 2017-02-25

Abrasion Process Modeling of Abrasive Belt Grinding in Rail Maintenance

摘要

摘要: 为揭示砂带服役寿命与打磨工艺参数之间的作用关系，针对钢轨砂带打磨中曲面、弹性接触特点，基于Archard方程和弹性赫兹接触理论，建立了面向钢轨砂带打磨的砂带磨耗过程模型.由数值仿真得到了不同接触压力、砂带速度、打磨列车速度、轨面曲率半径以及磨粒出刃高度均方差下的磨耗高度、砂带服役寿命曲线.并通过与现有砂带磨损试验结果对比，验证了模型的合理性.仿真分析结果表明：砂带表面磨耗轮廓线呈半椭球形，砂带寿命随接触压力、砂带速度的增加均呈指数形式降低，随打磨车速度增加呈近似线性增长；以60 kg/m钢轨为例，相同工艺条件下，打磨R13弧段较打磨R80、R300弧段时，砂带磨耗明显加剧；在钢轨表面粗糙度允许范围内，较大的磨粒出刃高度均方差有利于延长砂带的服役寿命.
- 钢轨打磨 /
- 砂带磨削 /
- 磨粒磨耗 /
- 赫兹接触
Abstract: Considering the contact area state under elastic contact of curved surfaces, an abrasive belt wear process model for rail grinding was established using the Archard equation and Heltzian contact theory to investigate the influence of technological parameters on the belt service life. The curves of wear height and belt service life were calculated through numerical simulations under different grinding forces, belt speeds, running car speeds, rail surface curvature radius and average variances of grit protrusion height. The rationality of the model was proved by comparing the simulational curves with existing experimental results. Simulation analysis illustrates that the wear contour of abrasive belt surface typically presents as a half ellipsoid, and the belt service life reduces exponentially with an increase in both the contact pressure and belt speed, but rise approximate linearly with the growth of running car speed. Taking the 60 kg/m rail as an example, under the same process conditions, the belt wear for grinding the R13 segment is clearly worse than that for both R80 and R300 segments. In the range of allowable rail surface roughness, a large grit protrusion height variance would be helpful to prolonging the abrasive belt service life.
- rail grinding /
- abrasive belt grinding /
- abrasive wear /
- Hertzian contact

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参考文献(15)

金学松,杜星,郭俊,等. 钢轨打磨技术研究进展[J]. 西南交通大学学报,2010,45(1):1-11. JIN Xuesong, DU Xing, GUO Jun, et al. State of arts of reaserch on rail grinding[J]. Journal of Southwest Jiaotong University, 2010, 45(1):1-11.

王文健,陈明韬,郭俊, 等. 高速铁路钢轨打磨技术及其应用[J]. 西南交通大学学报,2007,42(5):574-577. WANG Wenjian, CHEN Mingtao, GUO Jun, et al. Rail ginding technique and its application in high-speed railway[J]. Journal of Southwest Jiaotong University, 2007, 42(5):574-577.

聂蒙,李建勇,沈海阔,等. 基于容腔调节的钢轨打磨压力控制系统[J]. 西南交通大学学报,2015,50(5):796-802. NIE Meng, LI Jianyong, SHEN Haikuo, et al. Pressure control system for rail grinding based on chamber adjustment[J]. Journal of Southwest Jiaotong University, 2015, 50(5):796-802.

刘月明,李建勇,蔡永林,等. 钢轨打磨技术现状和发展趋势[J]. 中国铁道科学,2014,35(4):29-37. LIU Yueming, LI Jianyong, CAI Yonglin, et al. Current state and development trend of rail grinding technology[J]. China Railway Science, 2014, 35(4):29-37.

黄云. 核电高压容器强力高效砂带磨削方法及应用研究[D]. 重庆:重庆大学,2009.

黄云,黄智. 现代砂带磨削技术及工程应用[M]. 重庆:重庆大学出版社,2009:92-106.

路勇,黄云. 砂带磨削磨损性能试验研究[J]. 机械科学与技术,2014,33(12):1865-1868. LU Yong, HUANG Yun. Experimental investigation in the grinding and wear performance of abrasive belt grindingp[J]. Mechanical Science and Technology for Aerospace Engineering, 2014, 33(12):1865-1868.

吴昌林,丁和艳,陈义. 材料去除深度与磨粒的关系建模方法研究[J]. 中国机械工程,2011,22(3):300-304. WU Changlin, DING Heyan, CHEN Yi. Research on modeling method of relation between abrasive grain and material removal depth[J]. China Mechanical Engineering, 2011, 22(3):300-304.

张雷,袁楚明,周祖德, 等. 模具曲面抛光时表面去除的建模与试验研究[J]. 机械工程学报,2002,38(12):98-102. ZHANG Lei, YUAN Chuming, ZHOU Zude, et al. Modeling and experiment of material removal in polishing on mold curved surfaces[J]. Chinese Journal of Mechanical Engineering, 2002, 38(12):98-102.

WANG Y J, HUANG Y, CHEN Y X, et al. Model of an abrasive belt grinding surface removal contour and its application[J]. International Journal of Advanced Manufacturing Technology, 2016, 82:2113-2122.

EMEST R. Frication and wear of materials[M]. 2nd ed. New York:A Wiley-Interscience Publication, 1995:191-209.

WANG W X, LI J Y, LIU Y M, et al. Simulation of abrasive belt topography based on generation of random rough surface[J]. Key Engineering Materials, 2016, 693:892-899.

MEZGHANI S, El MANSORI M. Abrasiveness properties assessment of coated abrasives for precision belt grinding[J]. Surface and Coatings Technology, 2008, 203(5):786-789.

JOURANI A, HAGEGE B, BOUVIER S, et al. Influence of abrasive grain geometry on friction coefficient and wear rate in belt finishing[J]. Tribology International, 2013, 59:30-37.

任守良. 钛合金砂带磨削研究[D]. 南京:南京航空航天大学,2007.

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