摘    要
本文是根据中国铁建重工集团的需求，而对大功率液压元件检测实验台的设计。其内容主要包括对液压实验台的液压系统设计、机械结构设计和电气控制系统的设计。
首先通过分析此液压实验台需要完成的工作要求，对液压实验台的液压系统原理进行设计，并绘制出了液压系统原理图。然后通过对液压实验台参数的计算，选择了液压泵、液压阀等液压元件和辅助元件，并完成了电机的选择和油箱的设计，绘制了液压缸等零件图。接着对液压实验台的机械结构部分进行设计，并选用优点突出的PLC作为此实验台的电气控制装置。最后绘制了液压实验台的总装配图。
 
关键词：大功率，液压试验台，液压元件，液压系统，可编程控制器
 

ABSTRACT
This paper is based on the needs of China Railway Construction Industry Group, and the design of high power hydraulic components test bench. Its contents mainly include the design of hydraulic system design, mechanical structure design and electrical control system of hydraulic test bed.
First of all, this paper analyzes the hydraulic system principle of the hydraulic test bed by analyzing the working requirements of the hydraulic test bed, and draws out the hydraulic system schematic. Then, through the calculation of the parameters of the hydraulic test bed, hydraulic components and auxiliary components such as hydraulic pumps and hydraulic valves were selected, and the selection of the motor and the design of the fuel tank were completed, and the parts of the hydraulic cylinder were drawn. Then the mechanical structure of the hydraulic test bench part of the design, and the advantages of prominent PLC as the experimental platform of the electrical control device. Finally, the total assembly diagram of the hydraulic test bed is drawn.
 
Key Words： High Power, hydraulic system testing platform, Hydraulic Components, Hydraulic system, PLC