小花宏业大深滑盘婆流ihn.1f ringu imBACHELOR'S DEGREE THESIS OF CISAUABSTRACTAccording to the survey,there are about 60 million disabled people in Chinanow.The disabled number about 8 million 770 thousand,Chinese aged 60 andolder population has reached 149 million.21.4%of the world's elderly population,the top of the world.So that the demand for wheelchairs and other auxiliarywalking tools is increasingly urgent for both the elderly and the disabled.In general,the power of a multi-function electric wheelchair is a type ofbattery,its driving energy device is driven by an electric motor,and why theelectric wheelchair is more popular than the ordinary wheelchair,because theelectric wheelchair generally has these advantages.The operation is simple andeasy to handle,the speed is stable and safe,the noise is not polluted,green and soon.The first point of my thesis is to analyze all kinds of wheelchairs at home andabroad,and then record their advantages and disadvantages.Finally,we designseveral feasible schemes and compare them until we choose an optimal plan.Key words:wheelchair;drive and steering system;mechanical syste0
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