中南大学学报（自然科学版）Issue(6)：2027-2035,9.DOI:10.11817/j.issn.1672-7207.2015.06.008
基于标准廓形钢轨的打磨模式机理
Mechanisms of rail grinding patterns based on standard rail profile
摘要
Abstract
The grinding patterns have direct effects on the rail grinding processes and the ground results. It’s necessary to probe into the mechanisms of the rail grinding patterns in order to get the aimed rail status for rail maintenance projects. By taking the profile of 60 kg standard rail as the to-be-ground objects, the rules for key elements in the rail grinding process were developed. Firstly, the mathematical model for standard profile was developed. And the models of traversal-sectional area and cutting length model for ground rail were also built by combining the characteristics of pattern-distributing and the interference relationship between the grinding stone and the rail head. Then the changing rules of the key elements in the grinding process were observed in a range of the practical operation. Ultimately, the effects of different patterns on the actual detected profile and the theoretical profile were analyzed, including both of the symmetric patterns and the non-symmetric patterns. The results are as follows: the smaller the grinding angles are, the smaller depths would be needed as to achieve the same cutting traversal-sectional area on the railhead; both the transversely-symmetric patterns and the longitudinally patterns have same results on the come-and-go passing; the non-symmetric patterns have different grinding results on the rail profile depending on the angles distribution of the grinding stones.关键词
钢轨打磨/打磨机理/打磨模式/砂轮Key words
rail grinding/grinding mechanism/grinding patterns/grinding stones分类
交通工程引用本文复制引用
智少丹,李建勇,蔡永林,沈海阔,聂蒙..基于标准廓形钢轨的打磨模式机理[J].中南大学学报（自然科学版）,2015,(6):2027-2035,9.基金项目
国家自然科学基金资助项目(M13A300050)；铁道部科技研究开发计划重点项目(20100G008-C)；北京交通大学校科研基金资助项目(M11JB00350)(Project (M13A300050) supported by the National Natural Science Foundation of China （M13A300050）
Project (20100G008-C) supported by Key Project of the Ministry of Science and Technology Research & Development Plan （20100G008-C）
Project (M11JB00350) supported by Beijing Jiaotong University Scientific Research Fund Project) （M11JB00350）
