折叠轮椅创新设计.docVIP

. PAGE . 摘 要 根据所收集的各类文献及市场出售的各种轮椅显示，目前绝大多数轮椅可分为折叠式和固定式其中包括电动式等，折叠式轮椅收折之后所占的体积仍是非常庞大，如此将造成搬运困难，且施力不易，携带相当不方便，对于必须经常外出而行动不方便者，是个很大负担。目前市面上亦有两三种可收折成手提箱大小的折叠式轮椅，称为组合式轮椅，但其最大的缺点是组装程序相当的复杂和费时，在每一次的使用前与收复过程中，必须经过相当繁琐的步骤，对于使用时间短而使用次数多的患者而言，是一个非常困扰的问题。而电动式轮椅造价和价格比较贵不适合大众消费，而普通固定式的又占面积，不灵活。本设计所要研究的仿生叠轮椅仅以连杆机构所组成，从经过设计和设计要求的限制，及各类参考文献中得出了最适合此类机构的是Watt I型六连杆机构，并且进行了应用材料的确定、杆件的力学分析和整体的结构设计，最后完成了实体3D模型的制作。所以本设计所研究的手推型折叠轮椅是由单一自由度收折，并且没有分离的零件，不需使用任何拆卸工具即可以达到收折后体积小、重量轻、操作简便，像行李箱拖行及站立收藏等特性，适用于下肢瘫痪、年老体弱多病和行动不方便者，是一种非常理想的代步工具。 关键词：手推型折叠轮椅; 连杆机构; Watt I六联杆机构 Abstract According to the literatures collected in this research, most of the folding wheelchair can only be folded in lateral direction and the folded volume is still too big to carry or to transport and it becomes a terrible burden for active wheelchair users. There are two or three folding wheelchairs selling in the market, which can be folded into the size of a suitcase and is called “assembly wheelchair.” Their major defect is lengthy and complicated assembling procedures. Every time the user folds or unfolds the wheelchair, a tedious process must be conducted, which causes severe problems to daily wheelchair users. This research developed a linkage-type portable wheelchair. An optimal Watt-I six-bar mechanism was found according to the design requirements and design constraints. A full-size mockup was built after the dimensional analysis was accomplished. The portable wheelchair developed in this research has one-DOF with no separated parts. It requires no tools to operate. The new design has compact folded volume and light weight. It is easy to operate and can be dragged like luggage case. Therefore, it is an ideal mobile tool for elders and handicapped persons. Keywords ：hand-push； wheelchair； linkage； Watt-I six-bar 目 录 TOC \o 1-3 \h \z \u 摘 要 1 Abstract 2 目 录 3 第1章 折叠轮椅设计的研究现状 4 第2章 折叠轮椅设计的关键点 5 2.1、折叠轮椅的结构设计 5 2．2、折叠轮椅的材料和力学分析 6 2.3、 新型材料的简介 6 2.4、 折叠轮椅的创新设计 7 2.5、 基于Pro-