毕业设计(论文)-电动轮椅车设计.docx电动轮椅车设计
摘要
文中首先分析了国内外各种电动轮椅车的状况,在对比总结各自优缺点的基础上, 由于直流电机的额定输出转矩较低,不足以驱动后轮克服地面摩擦阻力传动,根据国内 实际情况,提出了一种含有机械传动减速机构的电动轮椅车,基于这种方案,设计了与 之相匹配的减速器及其他传动机构,该方案采用直流电机经减速器与链条连接到后轴, 以减低输出转速,增大输出转矩。应用现代设计理论及方法、对驱动方式进行分析和再 设计,优化车身骨架结构,添加必要的辅助功能装置,利用计算机辅助设计软件构建电 动轮椅车及各零部件三维模型,为新型低成本电动轮椅车的设计开发打下了一定基础, 提供了一种供参考的驱动方案和骨架结构。
关键词:电动轮椅车;设计;机械系统
The design of electric Patient care car
Abstract
This paper first analyzes the domestic and foreign various Patient care car status, based on comparing the advantages and disadvantages, because the rated output torque DC motor is low, not enough to drive the rear wheel to overcome the ground friction transmission, according to the actual situation, proposed the electric Patient care car with a mechanical reduction gear mechanism, based on this driving scheme, design of the reducer and other transmission mechanism is matched, the DC motor through reducer and the chain is connected to the rear axle, so as to reduce the output rotation speed, increase the output torque. Use the modem mechanical design theory and method, analyze and re-design the drive mode. Optimize the body frame structure. And add some necessary accessibility devices. Use computer aided design software to build a three-dimensional model of the Patient care car and it's components. This design of the electric Patient care car's mechanical systems has lay a certain foundation for the new type low-cost electric Patient care car and has given a reference scheme about drive mode and body frame structure.
Keywords: Patient care car; design; mechanical system
摘要 I
ABSTRACT II
1、 弓I言 1
、 选题的目的及其研究意义 1
、 课题相关领域的研究现状和发展趋势 1
、 1电动轮椅车的现状 1
2
2
3
、 主要研究内容、途径及技术路线 3
、 1具体研究内容 3
3
2、 电动轮椅车驱动及转向系统设计及主要参数 4
1、设计内容 4
、 驱动及转向系统设计 4
1电动轮椅车驱动及转向系统方案分析及选择 5
2. 7
2、 3、主要尺寸 7
3、 驱动电机选型 8
4、 蓄电池选用 12
5、 减速器设计 14
5. 1、计算传动装置的参数 14
、齿轮的设计计算 15
5. 2. 1齿轮材料和热处理的选择 15
5. 15
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