基于SolidWorks的汽车齿轮齿条式转向器系统实体造型设计

论文编号:JX1541  论文字数:12884.页数:44  附任务书，开题报告，外文翻译，CAD图，答辩PPT

 【摘要】本课题的题目是汽车齿轮齿条式转向器转向器的设计。齿轮齿条转向器设计的核心有两点：一是齿轮和齿条的合理匹配，以满足转向器的正确传动比和强度要求；二是转向器调整机构的设计，合理匹配出弹簧的刚度，以保证转向器的启动力矩和啮合特性。因此本课题在考虑上述要求和因素的基础上研究利用转向盘的旋转带动传动机构的齿轮齿条转向轴转向，通过万向节带动转向齿轮轴旋转，转向齿轮轴与转向齿条啮合，从而促使转向齿条直线运动，实现转向。实现了转向器结构简单紧凑，轴向尺寸短，且零件数目少的优点又能增加助力，从而实现了汽车转向的稳定性和灵敏性。在本文中主要进行了转向器齿轮齿条的设计和对转向齿轮轴的校核，主要方法和理论采用汽车设计的经验参数和大学所学机械设计的课程内容进行设计，其结果满足强度要求，安全可靠。
 
 【关键词】转向器；传动比；啮合；齿轮齿条

Rack and pinion steering gear
  [Abstract]This topic is the subject of automotive steering rack and pinion steering design. Rack and pinion steering gear design of the core there are two points: First, the rack gear and the reasonable match to meet the correct steering gear ratio and strength requirements; the second is the design of steering gear adjustment mechanism, a reasonable match the stiffness of the spring, to ensure that the starting torque and the steering gear meshing characteristics. Therefore, the subject of the above requirements and factors considered on the basis of research driven by the rotation of the steering wheel rack and pinion steering transmission mechanism of the steering shaft, steering gear through the universal joint drive shaft rotation, shaft and steering rack steering gear meshing, thus contributing to steering rack linear motion, to achieve steering. Simple and compact structure to achieve the steering gear, short axial dimensions, and the number of parts can increase the advantages of less power, enabling the vehicle steering stability and sensitivity. In this article, mainly for the design of the steering rack and pinion steering gear shaft and the Verification, the main method and theory with experience in automotive design parameters and mechanical design of the university curriculum design, and the results meet the strength requirements, safe and reliable.
 
 [Keywords]  redirector ; drive ratio; mesh; pinion and rack

目录

毕业设计（论文）任务书 Ⅰ
开题报告 Ⅱ
指导教师审查意见 Ⅲ
评阅教师评语 Ⅳ
答辩会议记录 Ⅴ
中文摘要 Ⅵ
外文摘要 Ⅶ
前言 1
1 设计方案的选择 9
1.1 转向器类型的选择 9
1.2 齿轮齿条式转向器布置和结构形式的选择 9
2 齿轮齿条式转向器的设计和计算 11
2.1 转向系计算载荷的确定 11
2.2 齿轮齿条式转向器的设计 14
2.3 齿轮齿条式转向器的材料选择及强度校核 16
2.4 齿轮齿条的基本参数 19
3 齿轮轴的结构设计 20
3.1 齿轮齿条式转向器的受力分析与计算 20
3.2 齿轮轴的设计计算 21
3.3 齿轮轴的强度校核 22
4 转向器间隙调整调整弹簧的设计计算 25
5 轴承的选择 28
6 润滑方式和密封类型的选择 29
7 实体造型设计 31
 7.1 SolidWorks功能简介 31
 7.2 结构设计 32
结束语 37
参考文献 38
致谢 41

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