摘要这次毕业设计的题目是：50T液压机液压系统设计。最主要的是对液压机的液压系统原理进行设计然后分析并计算。这次设计的液压机我最终选择为三梁四柱液压机，这种液压设备的应用及其的广泛，被应用在生活中方方面面。这种液压设备的零部件主要包含了液压机的主缸，各种滑块，各种横梁，各种立柱，多种充液阀，以及油箱。横梁、滑块、立柱、工作台、导柱、主缸和顶出缸相互协调共同工作组成了液压机的主机的主要部分。首先对液压机液压系统进行设计并且计算，然后开始液压缸的一系列设计以及计算，最后进行的是电机及泵的选择计算。在确定液压缸的大部分参数后对液压元件进行初步的选型。一定选择最为合适的液压元件由此保证液压系统运行稳定。这次设计的液压系统主缸能顺利实现快速下行。缓慢加压，保压延时，泄压回程，任意位置停止。薄板拉伸时，则要求顶出液压缸上升、停止和压力回程等辅助动作也能够全部实现。77635

毕业论文关键词：四柱万能 液压机 液压系统 液压缸

The Hydraulic Press for Background Information Briefly

Abstract The topic of this graduation design is: 50 t hydraulic press hydraulic system design。 Is the main principle of the hydraulic system of hydraulic press design and analysis and calculation。 The design of the hydraulic press for my final choice for the three beams four-column hydraulic press, the application of this kind of hydraulic equipment and widely, has been applied in the aspect of Chinese life。 This kind of hydraulic equipment parts mainly includes a hydraulic master cylinder, a variety of slide block, a variety of beam, a variety of columns, a variety of charging valve, and the fuel tank。 Bar, the slider, pillar, workbench, guide pin, master cylinder and ejection cylinder coordinate with each other to work together is made up of a hydraulic press main part of the host。 For hydraulic press hydraulic system design and calculation in the first place, and then began a series of design and calculation, the hydraulic cylinder finally is the choice of motor and pump of calculation。 After the most parameters of the hydraulic cylinder for preliminary selection of hydraulic components。 Must choose the most suitable hydraulic components which guarantee the stability of hydraulic system operation。 The design of the hydraulic system of main cylinder can successfully achieve rapid downward。 Slow pressure, protect calendering, pressure relief backhaul, stop at any position。 Sheet metal, insist on top, stop, and rising out of the hydraulic cylinder of return and so on can all achieve auxiliary actions

Key word: Four column universal  Hydraulic press Hydraulic system  Hydraulic cylinder

目  录

摘  要 I

Abstract II

图清单 V

表清单 V

1 绪 论 1

1。1概述 1

1。2 液压技术应用 2

1。3 液压的发展趋势 2

1。5 本章小结 4

2 液压机参数确定 5

2。1 液压机基本技术参数 5

2。1 工况分析 6

2。3 本章小结 7

3 液压机系统原理图设计 8

3。1 拟定液压系统原理图 8

3。2电磁铁动作顺序表