液压系统在组合机床上的应用.

液压系统在组合机床上的应用

摘要

液压以其独特的优点在机械设计中占有重要地位。它以通用部件为基础，根据工件加工需要，配以少量的专用部件组成一种机床，它具有低成、高效率的优点。以现在的发展趋势来看，液压车床的多工位加工如果加入柔性系统则发展成今天的加工中心。在今天的发展趋势中，一台液压车床如果不能完成全部的工艺过程，这时往往把几台机床布置成流水线，大大缩短了加工时间。而液压系统在组合机床上的应用更使其呈现出了新的春天。液压传动的优点很多：在同等的体积下液压装置能比电气产生更大的动力：液压装置工作比较平稳；液压装置能在大范围内实现无级调速，它还可以在运转中进行调速；液压传动易于对液体压力、流量或流动方向进行调节或控制；液压装置易于实现过载保护；液压元件实现了标准化、系列化和通用化；用液压传动实现直线运动比用机械传动简单。

关键词：液压；液压缸，液压油箱

英文题目

ABSTRACT

The abstract hydraulic pressure occupies important position with it's unique merit in machinery design. It takes the component being applied or used universally as basis , basis workpiece treating needs, match it with a little special-purpose component composition one kind of machine tool , its have low Cheng , high efficiency merit. Regarding developing trend now, hydraulic pressure develops the treating centre becoming today if adding flexibility system the lathe multistation treating. In developing trend today, one hydraulic pressure lathe accomplishes all procedure if unable, at this time sometimes have arranged several machine tools to become a production line , curtailing greatly to process time. But, the systematic hydraulic pressure application on combination machine tool has made the person display new spring more. The hydraulic drive merit many: Driving force that the hydraulic pressure device can under equal volume are bigger than electric creation: Hydraulic pressure device job comparison is stable; The hydraulic pressure device can realize stepless speed regulating within big range , it can carry out speed regulation in the travel; Hydraulic drive is prone pressure , rate of flow or mobile direction to carry out adjustment on liquid or control; The hydraulic pressure device is apt to be realized overload protection; The hydraulic pressure component has realized normalizing , be seriated and be applied or used universally-rization; Using hydraulic drive to realize linear motion is simpler than using mechanical drive.

KEY WORDS:Hydraulic pressure; Hydraulic pressure jar , hydraulic pressure fuel tank;

目录

前言 (1)

第1章液压传动概述 (2)

1.1什么是液压传动 (2)

1.2 液压传动系统及其组成 (2)

1.3液压传动的特点 (3)

1.4 液压传动技术的发展状况 (3)

第2章液压系统的设计 (5)

2.1液压系统的设计要求 (5)

2.1.1液压系统的工况分析 (5)

2.1.2 拟定液压系统原理图 (7)

2.2确定液压缸的主要参数 (9)

2.2.1液压主要尺寸的确定 (9)

2.2.2 确定液压泵的流量、压力和选择泵的规格 (12)

2.2.3液压阀的选择 (15)

2.2.4确定管道尺寸 (16)

2.2.5液压油箱容积的确定 (16)

2.3液压系统的验算 (17)

2.3.1压力损失的验算 (17)

2.3.2系统温升的计算 (19)

第3章液压缸的设计 (21)

3.1液压缸主要尺寸的确定 (21)

3.1.1 液压缸壁厚和外径的计算 (21)

3.1.2 液压缸工作行程的确定 (22)

3.1.3 最小导向长度的确定 (22)

3.1.4 缸体长度的确定 (23)

3.2液压缸的结构设计 (24)

3.2.1 缸体与缸盖组件 (24)

3.2.2 活塞杆与活塞组件 (26)