微型货车钢板弹簧的结构设计与校核【独家课程毕业设计含4张CAD图纸带任务书+开题报告+中期报告+答辩ppt+外文翻译】

微型货车钢板弹簧的结构设计与校核【独家课程毕业设计含4张CAD图纸带任务书+开题报告+中期报告+答辩ppt+外文翻译】

微型货车钢板弹簧的结构设计与校核

 摘要：本次设计中首先介绍了钢板弹簧的发展历程并且对其未来的发展趋势作出分析；然后分析了钢板弹簧对汽车造成的影响有哪些，比如平顺性和操作稳定性等方面；接着根据钢板弹簧各个结构的优缺点和具体车型的使用用途，对各主要零部件进行结构上的选型和计算；

因为钢板弹簧相较于其它的弹簧有结构简单，维修方便等优点所以在载货汽车上有普遍的应用。同时它的缺点是也使得它无法应用在独立悬架的汽车上，明显的缺点有钢板弹簧悬架具有较大的重量，较为长的纵向尺寸，同时有较强的刚度，使得舒适性相对来说也是较差，并且钢板弹簧悬架在与车架进行连接的部位也容易在使用中产生磨损。

在这次的设计中我们着重对微型货车的钢板弹簧进行结构设计，通过计算并绘制出图纸。

    关键词：微型货车；钢板弹簧；结构设计；校核

Structure design and check core of micro steel plate spring

Abstract：First, the paper introduces the development of leaf spring and analyzes its future development trend Then, it analyzes the influence of leaf spring on automobile, such as ride comfort and operation stability Then the detailed design steps and design requirements of leaf spring are described, and the structure selection and calculation of the main parts are made The arc height and curvature radius of the leaf spring are calculated, and the strength and stiffness of the material is checked and checked, and the steel spring is checked.

Because the leaf spring has the advantages of simple structure and convenient maintenance compared to other springs, it has a common application in the truck. At the same time, its disadvantage is that it can not be applied on the automobile

of the independent suspension, obvious disadvantage that the steel spring suspension has a larger weight, the longitudinal size of the radiation, and the stiffness is relatively poor, and the part of the steel spring suspension is easy to wear in use.

In this design, we focus on the structure design of the leaf spring of micro, calculate and draw the drawings.

Keywords：Micro； Sheet spring； Structural design； Check

目  录

摘要.............................................................................................................................................I

Abstract......................................................................................................................................II

1绪论..........................................................................................................................................1

1.1钢板弹簧的背景及意义......................................................................................................1

1.2国外的发展现状及发展趋势...............................................................................................1

1.3国内的发展现状及发展趋势...............................................................................................3

1.4研究意义和内容...................................................................................................................4

1.5本章小结...............................................................................................................................6

2钢板弹簧悬架总体方案分析..................................................................................................7

2.1钢板弹簧概述.......................................................................................................................7

2.2钢板弹簧悬架的基本结构和工作原理...............................................................................9

2.2.1钢板弹簧悬架基本结构....................................................................................................9

2.2.2钢板弹簧悬架工作原理..................................................................................................11

2.3钢板弹簧悬架系统总体结构方案确定.............................................................................11

2.4钢板弹簧悬架系统各主要零部件选型.............................................................................12

2.4.1叶片断面..........................................................................................................................12

2.4.2 叶片端头的形状......................................................................................................13

2.4.3 钢板弹簧与车架的连接形式的确定.............................................................................14

2.4.4 吊耳及钢板弹簧销的结构.............................................................................................14

2.4.5 钢板弹簧卷耳和衬套.....................................................................................................14

2.4.6 弹簧夹箍.............................................................................................................14

2.4.7钢板弹簧中心螺栓.........................................................................................................14

2.5技术经济分析.........................................................................................................15

3钢板弹簧悬架系统主要性能参数的确定...................................................................16

3.1钢板弹簧悬架系统静挠度和动挠度的选择.....................................................................16

3.2车型主要参数的确定..............................................................................................16

4钢板弹簧悬架的计算和校核................................................................................................17

4.1初选参数.............................................................................................................................17

4.1.1主片长度...........................................................................................................17

4.1.2断面尺寸及片数的确定..................................................................................................17

4.2各片长度的确定.................................................................................................................19

4.3钢板弹簧各片预应力及弧高............................................................................................20

4.4总成在自由状态下及装配后的弧高................................................................................21

4.4.1.弹簧总成自由弧高的确定..............................................................................................21

4.4.2钢板弹簧总成装配后的弧高.........................................................................................21

4.5钢板弹簧强制动时强度校核.............................................................................................22

4.6钢板弹簧刚度和应力校核.................................................................................................22

5结论........................................................................................................................................23

参考文献..................................................................................................................................24

致谢.......................................................................................................................................25

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中心螺栓.dwg

外文文献.docx

微型货车钢板弹簧的结构设计与校核.docx

微型货车钢板弹簧的结构设计与校核中期报告.doc

微型货车钢板弹簧的结构设计与校核任务书.doc

微型货车钢板弹簧的结构设计与校核开题报告.doc

微型货车钢板弹簧的结构设计与校核答辩ppt.pptx

文件清单.txt

钢板弹簧总成.dwg

钢板弹簧第一片.dwg

钢板弹簧第二片.dwg