摘要:本文设计的是一台地下车库液压升降机，液压控制系统在升降机中有着重要作用，对液压控制系统的设计是液压升降机的重要组成部分。液压控制系统性能的好坏决定了升降机的总体升性能，本设计运用了液压设计手册（软件版v1.0）直观、简洁的特点，综合了给定的设计要求，工艺参数，对地下车库液压升降机进行工况负载分析，根据现有的和传统的设计方法，综合出一种新的方法更加快捷、科学地综合出一套新的性能较好的地下车库液压升降机液压系统，本文对该地下车库液压升降机液压系统的主要内容如下：

第一章：前言

　　　主要介绍了地下车库液压升降机的应用与液压技术的发展，选题的目的和意义，以及地下车库液压升降机的设计要求；

第二章：液压系统的设计

　　　主要包括对地下车库液压升降机液压系统的负载分析，负载图和速度图的绘制，综合运用现有的设计方案的和传统的设计理念拟定出液压系统的原理图；

第三章：液压元件的选择及性能验算；

　　　主要包括分析确定出泵的型号，电动机的选择，各个阀类元件的选择，系统压力和温升的验算及液压缸结构的计算；

第四章：液压系统的电气控制

　　　主要包括PLC的工作原理，PLC流程图，梯形图及程序框图；

关键词：地下车库液压升降机液压系统；电液换向阀；液压原理图；PLC控制

Abstract:This paper is design of a underground garage hydraulic lifts, the design of the use of the Hydraulic Design Handbook(software version v1.0) intuitive, The hydraulic control system in elevator plays an important role, on the design of hydraulic control system of hydraulic elevator is an important part of the. Hydraulic performance of the control system determines the overall performance elevator lift. simple features, the given design requirements, process parameters, to the underground garage of hydraulic lift for load analysis according to the existing and traditional design method, a new way is more efficient, efficient, scientific and integrated a new better performance of the hydraulic lift system of underground garage, the underground garage hydraulic lift system the main contents are as follows:

Chapter one: Preface

　　　Mainly introduces the underground garage of hydraulic lift applications and the development of hydraulic technology, the purpose and significance of the topic, as well as the underground garage hydraulic elevator design requirements;

The second chapter: the design of hydraulic system

　　　Mainly include to the underground garage of hydraulic lift system load analysis, load and velocity diagram, determine the main parameters of hydraulic cylinder, the integrated use of the existing and traditional knowledge for a hydraulic system schematic;

The third chapter: the choice of hydraulic components and performance calculation

　　　As long as including the analysis of the pump is determined models, the choice of motor, the carious valve components selection, system pressure and temperature rise and checking calculation of the hydraulic cylinder structure;

Chapter fourth: electric control of hydraulic system

　　　Including the work principle of PLC, PLC flow diagram, ladder diagram and the program flow diagram;

Key words: underground garage hydraulic lift system； electro-hydraulic valve；hydraulic schematic；  PLC control