中国铁道科学2012，Vol.33Issue(2)：66-70,5.DOI:10.3969/j.issn.1001-4632.2012.02.12
高速铁路钢轨打磨关键技术研究
Research on Key Rail Grinding Technology of High-Speed Railway
摘要
Abstract
Pre-grinding railhead profile has been designed according to the wheel profile of vehicles on highspeed railway in China. The wheel-rail contact state can be improved effectively by pre-grinding the rail in accordance with the pre-grinding railhead profile. Theoretical metal removal for different wheel profiles and the pre-grinding railhead profile applies to LMA and S1002G wheel profiles have been proposed. With regard to the error between the actual railhead profile after grinding and the pre-grinding design profile, it should be controlled within the range of 0. L～0. 3 mm at the gauge corner. It is recommended that the rail grinding cycle for high-speed railway in China should be once for every total passing tonnage of 30～50 Mt. The upper limit is for ballastless track and the lower limit is for ballasted track. 0. 8～1. 5 mm depth of metal should be removed from the gauge corner of 60 kg · M-1 rail, while the metal removal should be larger than 0. 3 mm in the main wheel-rail contact area. The surface roughness of rail after grinding should be less than 10 μm. The required profile can be obtained by 3～4 passes of a grinding train with 48 grinding modules, and 2 passes of a grinding train with 96 grinding modules.关键词
高速铁路/钢轨打磨/轨头廓面设计/走行光带/打磨周期/打磨参数Key words
High-speed railway/ Rail grinding/ Railhead profile design/ Wheel-rail contact band/ Grinding cycle/ Grinding parameter分类
交通工程引用本文复制引用
周清跃,田常海,张银花,刘丰收,陈朝阳,俞喆..高速铁路钢轨打磨关键技术研究[J].中国铁道科学,2012,33(2):66-70,5.基金项目
铁道部科技研究开发计划项目(2008G001-A,2010G006-F) （2008G001-A,2010G006-F）
