升降平台在汽车的维修方面发挥着重要的作用，通过对同步升降平台的各种液压阀、液压缸、液压泵站的创新改进，使得液压同步升降平台拥有运行平稳、噪声低、响应速度快、同步精度高等优点，对于在我国汽车的维修与保养中起着不可替代的作用，应用前景广泛。
4S店汽车维修专用升降机是双铰接剪叉式升降机，它是在原由的剪叉式升降机的基础上，运用现在的灵活性、安全性、经济性等指标；结构以能够满足灵活性要求较高的汽车维修需要为前提而设计的。
通过对双铰接剪叉式升降机机构位置参数和动力参数的分析，结合具体实例，对机构中两种液压缸布置方式分析比较，并根据要求对液压传动系统各部分进行设计计算最终确定液压执行元件-液压缸，通过对叉杆的各项受力分析确定台板与叉杆的载荷要求，最终完成剪叉式液压升降机的设计要求。
 
关键字：升降台；剪叉式；结构设计；液压Abstract

Hydraulic synchronizing lifting platform currently used in automobile repair plays an important role in automobile repair, by improving the innovation of various hydraulic valves, synchronous lifting platform hydraulic cylinder, hydraulic station, hydraulic synchronizing lifting platform with the smooth running, low noise, fast response speed, synchronous precision, it plays an irreplaceable role in the repair and maintenance of cars in China, extensive application prospect.
Double-hinged scissors lifts in the design of the previously scissors lifts on the basis of the present application flexibility, security, economic and other indicators, structural flexibility to meet higher requirements of vehicle maintenance the need for premise, and the response by different models to meet vehicle maintenance, and other performance requirements.
Through the double-hinged scissors lifts Position parameter and the dynamic parameters of technology, combined with specific examples, the agency improved in the hydraulic cylinder layout analysis and comparison, and in accordance with the requirements of part of a hydraulic system design and calculation of final Pressure implementation components - hydraulic cylinder, through analysis of the fork-defined plate and fork-load requirements, the final completion of scissors hydraulic lifts the design requirements.
 
Key Words： lifting platform ；scissors forks ；configuration design  ； hydraulic pressure
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