摘要:本文综合讲述了国内外重载运输的发展现状, 世界上很多重载运输国家的货运列车轴重达到了30吨以上，但迄今为止我国重载车辆的最大轴重为 25t，轴重在很大程度上制约着我国铁路重载运输的发展，因此,快速掌握货车大轴重技术,进行 30t 轴重重载货车轮对的开发很有必要。
首先分析了国内现有车轮的结构和特点， 参照中国铁路标准初步确定了适应我国现有国情的30t 轴重货车车轮的结构型式和尺寸，然后根据美国标准AAR M-101对30吨车轴进行了结构设计，对车轴的轴颈、轴身、轮座等进行了圆弧过渡设计。
最后，选择用有限元软件对轮对进行强度分析，根据国际铁路联盟（UIC）规程对车轮进行强度分析。 根据美国标准 AAR对30t轴重的货车车辆车轴进行强度分析。通过有限元分析表明轮对性能稳定、可靠。 20188
关键词：大轴重货车；车轮；车轴；静强度；有限元分析
Structure Design of 30T axle- load freight wagon wheel set
Abstract: In this article, the developing actuality of heavy haul freight wagon both in China
and foreign college was introduced. On many heavy haul transportation countries, axle load of
vehicle is greater than 30 tons. But to this day, our country is the maximum axle loads 25 t, axle
loads restricted the further development of China's heavy-duty transport. As a result, we have to
learn as soon as possible the technique of heavy axle-load freight wagon and make 30 tons
heavy haul freight wagon into reality.
The Structure and running performances of wheel existing are analyzed. The basic
structure of 30 t axle-load wheel is determined under related national conditions according
Chinese railway standards. According to the American standard AAR M-101 designs the
structure of 30 tons of axle. Shaft neck and body to size of axle carry on the design.
Finally, discussing the structure of the finite element method and choose software to
analyze strength in the round. According to International Union of Railways (UIC) regulations
analyze the strength of wheel and according to the American standard AAR M-101 analyze
strength of axle. According to the American standard AAR M-101 analyze strength of axle. The actual service indicates that the wheel enjoys itself with stable performance、reliable.
Key Words： Large Axle Load Freight Wagon； Wheel Set ； Axles； Static Strength； Finite
Element Analysis
目录
1 绪论 . 1
1.1 论文的选题背景 1
1.2 国外研究现状与水平 1
1.2.1 澳大利亚重载货运 . 2
1.2.2 美国重载货输 . 2
1.2.3 加拿大重载货运 . 2
1.2.4 瑞典重载货运 . 2
1.2.5 南非重载货运 . 3
1.2.6 俄罗斯重载货运 . 3
1.3 国内研究现状与水平 3
1.4 本文主要工作 4
2 轮对结构介绍 . 5
2.1 轮对组成及相关要求 5
2.2 车轮各结构及其作用 6
2.3 车轴主要结构及作用 7
3 车轮结构设计 . 8
3.1 车轮踏面截面分析 8
3.2 轮对踏面结构选择 12
3.2.1 锥形踏面基本外形及尺寸 . 12
3.2.2 磨耗型踏面基本外形及尺寸 . 12
3.2.3 轮对踏面类型的比较与选用 . 14
3.3 车轮辐板设计 16
3.3.1 国外S 形车轮 . 16
3.3.2 我国S 型车轮结构 . 17
3.4 轮对设计结果 20 30T轴重货车轮对结构设计:http://www.751com.cn/jixie/lunwen_11864.html