30T轴重货车轴承箱结构设计
毕业论文关键词：滚动轴承轴箱；结构设计；寿命；润滑；密封
30 tons of heavy axle shaft bearing box structure design
Abstract: Overloaded truck axle box is connected in railway locomotive and vehicle axle neck, and the
wheel of the related components and bogie frame. Bearing box to pass round the total weight of the car body
carrying on, and inherit the wheel to produce a moving to axial force and radial force; In order to protect the
bearing box parts, and to reduce friction, reduce the running resistance, note a lubricant in the bearing
housing. According to the experience of railway truck overloading transportation, the use of 30 tons of axle
load of freight is the best way to improve the performance of railway transportation. The current use of
railway wagon bearing axle load is 25 tons, designed 30 tons of axle load of overloaded trucks, mastering the
big truck axle load bearing axle box size and structure is a necessary process of railway development. This
topic comprehensive development trend of the current railway, analyzes the existing railway wagon bearing
box size and structure; Use what they have learned knowledge about mechanics, mechanical, design and
stress analysis was carried out on the train bearing box; Rolling bearing structure of axle box to make use of
drawing software design, and map project. Due to the current development in the direction of the overloaded
railway wagon, objectively requires when designing bearing box need to further improve the bearing capacity
of the bearing, the bearing has high strength, high reliability and long life.
KeyWords: roller bearing axle box；bearing capacity；life；lubrication；sealing
目录
目录1
1 绪论1
1.1 选题背景.1
1.2 本课题的目的和意义.2
1.3 国内外轴承轴箱研究现状.3
1.4 文章研究技术路线.4
2 轴承箱的总体设计方案... 5
2.1 重载货车滚动轴承的功用和类型.5
2.2 重载货车滚动轴承的类型和特点.5
2.3 30T 轴重货车轴承的工况分析和计算.. 7
2.3.1 车辆滚动轴承的受载情况分析..7
2.3.2 车辆滚动轴承的寿命计算..8
2.3.3 滚动轴承的静强度和计算准则11
2.3.4 滚动轴承的静强度计算公式12
2.3.5 滚动轴承游隙的合理选择13
2.3.6 轴承套圈的轴向固定14
2.3.7 滚动轴承的预紧及配合14
3 轴承箱箱体结构设计. 15
3.1 轴承箱箱体主要零件...15
3.2 轮对各部件及装配图...19
3.3 轴承箱的材料选择...20
3.4 有限元分析过程...21
4 轴承箱的润滑与密封. 23
4.1 润滑油的作用和选择...23
4.1.1 轴承的摩擦23
4.1.2 滚动轴承的磨损预测23
4.1.3 滚动轴承的润滑方式和设计原则23