新型电动代步车座椅升降机构设计与开发（本科毕业论文设计）.doc

摘 要

随着现代社会人口老年化，考虑老年人等的特殊需要，电动代步车等创新产品不断出现。电动代步车拥有越优越的性能，就越能满足人们对于电动代步车的舒适性等多方面性能的要求，并且其舒适性也显得越来越重要。电动代步车座椅升降机构的设计就是为满足这一要求而开发与设计的。
座椅升降机构的设计与开发是新型电动代步车研究开发项目的一部分。因此，研究座椅升降机构有着十分必要的现实意义。同时，考虑老年人这一特殊人群的特殊需要，电动代步车上下的方便与车上空间的利用，还设计了座椅的左右旋转。
本毕业设计是在给定设计条件下，参考现有样车电动代步车和旋转轮椅的基础上，结合现代机电一体化技术、电力电子技术、高性能电磁铁材料技术对电动代步车座椅进一步的技术改进。利用AutoCAD软件建立了整车的整体系统模型；并对代步车在实际使用中的各种工况（行驶、停车、加减速、上下车）进行了试验，并对试验结果做出了相应的评价，预测了整车的各方面的性能；重点对该车的舒适性和方便性进行试验，符合前期设计的要求，验证了前期设计的合理性。我们参考现有样车用座椅，采用AutoCAD进行电动代步车座椅升降机构初步设计；再根据给定条件计算确定其主要尺寸，并根据设计计算出的参数确定结构尺寸，画出譆@赏肌Ⅻbr>针对新型电动代步车结构特点，我们都与机械加工厂家现场联系、加工并确认加工效果。以上研究与实践为进一步研究开发新型的电动代步车打下了一定的基础，取得了一定效果并达到了预期目标。


关键词：电动代步车，座椅升降机构，设计计算，Auto CAD












ABSTRACT

Today the elderly is more and more proportion in the society.When the especial need of the elderly is considered，the innovative manufacture，such as the Electric Scooter，come forth at the market。In addition, their comfort also become increasingly important. Electric Scooter seat travel movements of the body is designed to meet the requirements of the development and design.
Up and Down Seat Mechanism for a New Electic Scooter　is one part of New Electic Scooter research and development project .Hence，research institutions have a seat take-off and landing is necessary practical significance. At the same time, elderly people consider this to the special needs of special populations, the Electic Scooter travel on board the space and convenience of use, designed around the rotating seat.
The design is based on the known condition，consults the existing means of transport like Electic Scooter and Rotary wheelchair, electromechanical integration of modern technology, power electronics, materials technology for high-performance magnet electric car seat travel further Technical improvements. Make use of the AutoCAD software to have built entire vehicle overall system model; Reduce the speed to riding instead of walk lathing various working condition in being put into use in reality (running , parking , acceleration or deceleration , on or off scooter) together have carried out an experiment , have made corresponding valuation out to test result , have forecast every entire vehicle aspect function and; Priority has carried out an experiment on the comfortableness and expedience being vehicle's turn , has accorded with the request designing that in the earlier stage , has verified the rationality designing that in the earlier stage. We consult now available appearance vehicle using a seat , adopt AutoCAD to be in progress electric ride instead of walk lathing seat promotion and demotion organization first step design; Ascertain whose main dimension again according to being fixed condition secretly scheme against , draw up assembly picture and according to the dimension designing that the parameter secretly scheming against out ascertains structure.
In view of the new Electric Scooter Unique feature, we relation with machine-finishing factory , to process and to confirm the processing effect. The above research and the practice to further study the development new electrically operated riding instead of walking vehicle to build certain foundation, has made certain progress and has achieved the anticipated target.


Keywords：Electric Scooter,up and down Seat Mechanism, design and calculation, Auto CAD










目 录

摘 要 I
ABSTRACT II
目 录 IV
1 绪 论 1
1.1引言 1
1.2 电动代步车座椅现状 1
1.3 课题任务、重点研究内容、实现途径 2
1.3.1 设计方案与选型 2
1.3.2 课题任务 3
1.3.3重点研究内容 3
1.3.4实现途径 3
1.4 座椅升降机构的发展前景 4
2 AUTO CAD 软件学习 5
2.1 AUTO CAD 简介 5
2.2 AUTOCAD 操作界面简介 5
2.3 AUTOCAD 的使用 6
2.3.1基本图形的绘制 6
2.3.2图形的修改 7
2.3.3 文字的输入和编辑 8
2.3.4 图块的创建和使用 9
2.3.5 图层的设置 9
2.3.6标注 10
2.4 本章小结 12
3 座椅升降机构的整体结构方案设计 14
3.1电动代步车的座椅升降机构结构 14
3.2限位开关的结构 15
3.3电磁铁定位销的结构及工作原理 16
4 座椅升降机构详细设计 18
4.1 电机的设计 18
4.1.1 设计要求 18

4.1.2 电机的初步设计计算 18
4.2 丝杆的设计 19
4.2.1 材料的选取 19
4.2.2 估算丝杆最小直径 20
4.2.3 轴的结构设计 20
4.2.4丝杆的强度校核 22
4.3电磁铁的..