L25型轮胎压路机前轮系统设计[关键词]： YL25；轮胎压路机；前轮；挡泥板；转向机构[摘要]：在建造公路、铁路以及其他大型建筑时，压路机已经成为必不可少的工业设备。轮胎压路机比钢轮式压路机要灵活，另外，轮胎压路机有柔性压实的附加功能，从这一点看，其它压实设备不能办到。所以研究轮胎压路机具有重要的意义。32655

The Design of Front Wheels for The YL25 Pneumatic Tyred Roller
[Keyword]：YL25 ；pneumatic tyred roller ；front wheel；splash guard；splash guard
[Abstract]：Now rollers have become the indispensable industrial equipment when building roads , railways and other large buildings . Pneumatic tyre roller is much more flexible than steel wheel roller , and pneumatic tyre roller has irreplaceable function of soft compaction than other compaction equipment . SO it’s of great significance to study the Pneumatic tyre roller .
This design is for type YL25 tyre roller front wheels . It must be right to the univers parameter that have known ,and the total design of the front wheels. Including the design of the front wheel spindle, the selection of the tire , the design of the vertical shaft of front wheels and the design of the steering system. 源`自*六)维[论*文'网www.lwfree.cn
In this manual, the mechanical data of related parts as well as the life span of machinery parts are calculated, and every component of the system has been designed. Their assemble can be seen in the assembly drawing. The vertical shaft of front wheels, the splash guard and the knuckle mechanic are all designed on the swing part, so that the system can be much more perfect.
The front wheels of the roller bear almost half of weight of the roller, so the security and stability of the front wheel is the precondition of the roller’s work, and the design of the front wheel has great significance to the whole roller.

3.1 前轮轴水平受力分析    5
3.2 计算支反力    6
3.3 计算水平弯矩    6
3.4 垂直力分析    7
3.5 计算垂直支反力    7
3.6 计算垂直弯矩    7
3.7 计算合成弯矩    8
3.8 计算O截面的抗弯模数    8
3.9 计算弯曲应力    8

4.1 计算径向力    9
4.2 轴向力    9
4.3 轴承型号参数    9
4.4 计算轴承寿命    10

5.1 水平径向力    11
5.2 侧向径向力    11
5.3轴向力 Pa1    11
5.4 合成径向力    12
5.5 计算支反力 RA    12
5.6 轴承 A 所受径向力    12
5.7 计算轴承寿命    12

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