摘要本设计为中型四柱液压机，设计承载最大负载2000KN。主机的主要组成部分包括：上梁、导柱、工作台、移动横梁以及主缸、顶出缸等组成。本文件侧重于设计的液压系统。通过具体的参数计算和分析的工作条件，制定整体控制系统方案。液压系统中插装阀集成控制有良好的密封性，而且这种控制方式具有流量大、压力损失小等特点。在主机顶部必须设置一个补油油箱，这是为了解决主缸快进时导致供油不足的问题。主缸的速度换接与安全行程限制由行程开关来控制;以便确保工件质量，保压回路可以使工件稳定成型；该系统有泄漏的压力循环的设备，以确保安全。与此同时，本文对液压站中重要的液压元件进行了结构、外形、工艺设计，对主机、电气控制系统进行了简要设计。49801

液压系统的压力损失和温度升高审查该液压系统的设计周期，实现对塑料材料的锻压、冲压、冷挤、拉直、弯曲等工艺。

毕业论文关键词：液压系统；液压机；毕业设计

ABSTRACT The design for the medium-sized four-column hydraulic press, design bearing maximum load 2000KN. Host's main components include: upper beam, guide posts, table, moving the beam and the master cylinder, top of the cylinder and other components. This document focuses on the design of the hydraulic system. Through specific parameter calculation and analysis of the working conditions, the development of the overall control system solutions. Develop hydraulic control system block diagram. Hydraulic system adopts integrated control cartridge valve integrated cartridge valve control good sealing, flow, pressure loss. Set up the oil tank top host master cylinder fast forward to solve the problem of insufficient supply when. Limit switch controls the speed of the master cylinder for access and security, travel restrictions; ensure the quality of the workpiece, the workpiece holding pressure loop can stabilize molding; This system has the leak pressure cycling equipment to ensure safety. In addition, this paper hydraulic station hydraulic components important structural, shape, process design, the host, a brief electrical control system design.

Hydraulic system pressure loss and temperature of the hydraulic system design review cycles to achieve forging, stamping, cold extrusion, straightening, bending and other materials made of plastic molding process.

Keywords: Hydraulic System ；Hydraulic Pressure machine；Graduation design

目  录

第1章  绪论 1

1.1  液压机现状概要 1

1.2  本文拟达到的要求 2

第2章  四柱液压机总体方案设计 4

2.1  四柱液压机主要设计参数 4

2.2  四柱液压机工作原理分析 4

2.2.1  四柱液压机的基本组成 4

2.2.2  四柱液压机的工作原理 5

2.3  四柱液压机工艺方案设计 7

2.4  四柱液压机总体布局方案设计 8

2.5  四柱液压机零部件设计 8

2.5.1  主机载荷分析 9

2.5.2  主机工作台设计 12

2.5.3  控制台设计 12

第3章  四柱液压机液压系统设计 13

3.1  液压传动的优越性概述