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机车关键参数对车钩转角与机车运行安全性的影响

许自强 罗世辉 马卫华 吴庆

许自强, 罗世辉, 马卫华, 吴庆. 机车关键参数对车钩转角与机车运行安全性的影响[J]. 交通运输工程学报, 2013, 13(3): 47-52. doi: 10.19818/j.cnki.1671-1637.2013.03.007
引用本文: 许自强, 罗世辉, 马卫华, 吴庆. 机车关键参数对车钩转角与机车运行安全性的影响[J]. 交通运输工程学报, 2013, 13(3): 47-52. doi: 10.19818/j.cnki.1671-1637.2013.03.007
XU Zi-qiang, LUO Shi-hui, MA Wei-hua, WU Qing. Influence of locomotive key parameters on coupler rotation angle and locomotive running safety[J]. Journal of Traffic and Transportation Engineering, 2013, 13(3): 47-52. doi: 10.19818/j.cnki.1671-1637.2013.03.007
Citation: XU Zi-qiang, LUO Shi-hui, MA Wei-hua, WU Qing. Influence of locomotive key parameters on coupler rotation angle and locomotive running safety[J]. Journal of Traffic and Transportation Engineering, 2013, 13(3): 47-52. doi: 10.19818/j.cnki.1671-1637.2013.03.007

机车关键参数对车钩转角与机车运行安全性的影响

doi: 10.19818/j.cnki.1671-1637.2013.03.007
基金项目: 

国家自然科学基金项目 51005190

霍英东教育基金项目 122014

详细信息
    作者简介:

    许自强(1984-), 男, 江西南昌人, 西南交通大学工学博士研究生, 从事车辆系统动力学研究

    罗世辉(1964-), 男, 江西赣州人, 西南交通大学教授, 工学博士

  • 中图分类号: U260.34

Influence of locomotive key parameters on coupler rotation angle and locomotive running safety

More Information
  • 摘要: 针对列车车钩承压偏转行为, 分析了机车结构参数与车钩转角之间的关系, 通过建立由3节新型33 t轴重C0-C0轴式重载机车与2组具有钩肩特性、缓冲器迟滞特性的圆销钩缓装置组成的列车动力学模型, 研究承压工况下机车结构参数对车钩转角与列车运行性能的影响。计算结果表明: 在列车车钩自由转角为8°时, 承压时车钩的实际转角达不到8°, 此时车钩钩肩不发生作用, 稳钩力由机车二系止挡提供, 车钩横向力全部传递至轮对, 导致机车的轮轴横向力超标; 提高二系止挡间隙或降低止挡间距等参数, 可以增加车钩的转角, 减小车钩横向力, 降低轮轴横向力, 提高列车的运行安全性; 在重载机车车钩选型中, 应该考虑机车结构参数与车钩自由转角的匹配关系。

     

  • 图  1  圆销车钩结构与受力分析

    Figure  1.  Structure of round-pin coupler and its stress analysis

    图  2  车体与车钩偏转关系

    Figure  2.  Rotation relationship between carbody and coupler

    图  3  车钩模型

    Figure  3.  Coupler model

    图  4  列车模型

    Figure  4.  Train model

    图  5  二系止挡自由间隙的影响

    Figure  5.  Influence of secondary stop's free clearance

    图  6  二系止挡纵向间距的影响

    Figure  6.  Influence of secondary stop's longitudinal distance

    图  7  转向架至钩尾销距离的影响

    Figure  7.  Influence of distance between bogie and coupler-pin

    图  8  二系水平刚度的影响

    Figure  8.  Influence of secondary suspension's horizontal stiffness

    表  1  机车主要技术参数

    Table  1.   Main technical parameters of locomotive

    表  2  直线运行性能

    Table  2.   Running performance on tangent track

    横向平稳性 垂向平稳性 轮轴横向力/kN 轮轨垂向力/kN
    2.55 2.63 35 203
    下载: 导出CSV

    表  3  曲线运行性能

    Table  3.   Running performance on curved track

    曲线半径/m 轮轴横向力/kN 脱轨系数 轮重减载率 摇头角/(°)
    300 75 0.45 0.51 0.64
    400 73 0.40 0.49 0.50
    下载: 导出CSV
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出版历程
  • 收稿日期:  2012-12-18
  • 刊出日期:  2013-06-25

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