何建伟的毕业设计说明书最终版何建伟的毕业设计说明书最终版.doc

150T液压机的液压系统设计及分析 摘 要 液压机是制品成型生产中应用最广的设备之一。自十九世纪问世以来发展很快，已成为工业生产中必不可少的设备之一。由于液压机在工作中的广泛适应性，使得其在国民经济各部门获得了广泛的应用。如板材成型；管、线、型材挤压；粉末冶金、塑料及橡胶制品成型；胶合板压制、打包；人造金刚石、耐火砖压制和炭极压制成型；轮轴压装、校直等等。 随着液压技术的发展，液压机的应用越来越广泛，尤其是150吨液压机在压装和成型的应用，针对液压机的应用，我设计了“150t液压机液压系统”，此系统，能够实现的工作循环为快速空程下行—慢速加压—保压—快速回程—停止。要求采用液压方式实现运动部件的平衡；不考虑各种损失。本次设计，先后做了系统的设计，对系统的元件选型，对非标件的结构设计，性能验算，完成说明书，绘图等任务。 关键词：液压系统设计，液压方式，运动平衡 150T hydraulic press hydraulic system design and analysis ABSTRACT In the production of products of molding press is one of the most widely used equipment. Since the 19th century its development is fast, has become an essential equipment in industrial production. Because of the extensive adaptability press at work, so that in the sectors of the national economy has been widely used. Such as sheet forming, pipe extrusion line, powder metallurgy, plastic and rubber molding, plywood, packaging, synthetic diamond, oppression and refractory carbon very pressing molding, wheel pressed, straightening, etc. Along with the development of technology, hydraulic press used more widely, especially in 150 tons of hydraulic pressing and molding application, according to the hydraulic press’ application , I designed 150t hydraulic press hydraulic system, this system can realize the work cycle 棗downlink erapidly 棗dcompression slowly 棗rpressure-keeping棗rthe quick return 棗h stop. Requiring to keep the balance of hydraulic movement. Dont consider various losses. This design has made system design, selection of system components of non-standard parts, the structure design, performance, and completed specifications, drawing computations such tasks. Keywords: hydraulic press system design ，the way in the hydraulic ，the balance of hydraulic movement目　录 前　言 1 第1章 液压传动概述 2 1.1液压传动的定义和发展情况 2 1.2液压传动的定义和发展情况 3 1.3液压传动的组成 5 1.4液压传动的定义和发展情况 6 1.5液压传动的特点及应用 10 第2章 液压系统的设计与计算 13 2.1 液压系统的设计步骤和方法 13 2.2 液压系统的工况分析和系统的确定 13 2.3 确定液压系统的主要参数 14 2.4 液压系统的拟定 15 2.5 液压元件的计算和选择 17 2.6 液压系统的性能验算 20 第