组合机床液压系统设计说明书讲解.docVIP

摘要 本次设计主要是对液压系统分析计算及选择液压元件等等的流程最终完成设计。经过这次的毕业设计一方面进一步加深对所学理论知识的运用，另一方面知道了自己在那些方面的不足，学会运用自己所学和书本结合解决一些设计中的问题。通过此毕业设计环节的锻炼把以前所学的理论知识的运用与实践，从而达到温故知新的目的，提高了自己解决问题的能力。 第一章为绪论是对整个说明书的一个概述；第二三章是书的重中之重它是这次设计的根本，所以的一切都可以再这章中找到；最后次设计的一个总结。 关键词：液压缸工作压力确定，液压系统的验算，确定液压泵的流量、压力和选择泵的规格。 目录 前言···························································1 第1章 绪论··········································2 1.1液压技术简介·················································· 2 1.2液压产品技术发展趋势·········································· 2 1.2.1减少损耗充分利用能量········································· 2 1.2.2泄漏控制····················································· 2 1.2.3污染控制····················································· 3 1.2.4主动维护····················································· 3 1.2.5机电一体化··················································· 3 1.2.6液压CAD技术··············································3 1.2.7新材料新工艺的应用··········································· 3 1.3液压系统工作原理·············································· 4 第2章 液压系统分析计算及选择液压元件····················4 2.1工况分析······················································ 5 2.2拟定液压系统原理图············································ 6 2.2.1确定供油方式················································· 6 2.2.2调速方式选择················································· 6 2.2.3调速换接方式的选择··········································· 6 2.2.4夹紧换接回路选择············································· 6 2.3液压系统计算及选择液压元件···································· 6 2.3.1液压缸主要尺寸的确定········································· 6 2.3.2确定液压泵的流量、压力和选择泵的规格························· 8 2.3.3液压阀的选择················································ 10 2.3.4确定管道尺寸··············································· 11 2.3.5液压油箱容积的确定·········································· 11 2.4 液压系统的验算··············································· 11 2.4.1压力损失验算················································ 11 2.4.2系统升温的验算·············································· 14 第3章 液压缸的设计···································