机械5

摘要 本课题研究的主要内容是卧式单面钻镗两用组合机床液压系统设计。液压系统的设计是整个机器设计的一部分，它的任务是根据机器的用途、特点和要求，利用液压传动的基本原理，拟定出合理的液压系统图，再经过必要的计算来确定液压系统的参数，然后按照这些参数来选用液压元件的规格和进行系统的结构设计，最后对液压系统的主要性能进行验算。作为现代机械设备实现传动与控制的重要技术手段，液压技术在国民经济各领域得到了广泛的应用。与其他传动控制技术相比，液压技术具有能量密度高﹑配置灵活方便﹑调速范围大﹑工作平稳且快速性好﹑易于控制并过载保护﹑易于实现自动化和机电液一体化整合﹑系统设计制造和使用维护方便等多种显着的技术优势，因而使其成为现代机械工程的基本技术构成和现代控制工程的基本技术要素。 关键字：滑台液压系统；液压系统；液压元件;性能 ABSTRACT As a
n importa
nt tech
nical mea
ns of moder
n machi
nery a
nd equipme
nt to achieve tra
nsmissio
n a
nd co
ntrol of hydraulic tech
nology i
n all areas of the
natio
nal eco
nomy has bee
n widely used. Compared with other tra
nsmissio
n co
ntrol tech
nology, hydraulic tech
nology with high e
nergy de
nsity co
nfiguratio
n flexibility steady speed ra
nge, good work a
nd quick a
nd easy to co
ntrol a
nd overload protectio
n easy to automate a
nd i
ntegrate ﹑ hydraulic i
ntegrated system desig
n a
nd ma
nufacturi
ng a
nd mai
nte
na
nce of a variety of sig
nifica
nt tech
nological adva
ntage a
nd co
nve
nie
nt, thus maki
ng it esse
ntial tech
nical eleme
nts co
nstitute the basic tech
nology a
nd moder
n co
ntrol e
ngi
neeri
ng, moder
n mecha
nical e
ngi
neeri
ng. The mai
n co
nte
nts of this research is two-sided hole drilled through the combi
natio
n of horizo
ntal hydraulic machi
ne power slidi
ng feed system desig
n. The desig
n of the hydraulic system is part of the machi
ne desig
n, a
nd its missio
n is based o
n the use, characteristics a
nd requireme
nts of the machi
ne, usi
ng the basic pri
nciples of hydraulic tra
nsmissio
n, hydraulic system to work out a reaso
nable figure, a
nd the
n after the
necessary calculatio
ns to determi
ne the parameters of the hydraulic system the
n follow these parameters to choose the specificatio
ns of hydraulic compo
ne
nts a
nd structural desig
n of the system, a
nd fi
nally to the mai
n performa
nce hydraulic system checki
ng. Keywords: hydraulic compo
ne
nts;; slipway hydraulic system; hydraulic system performa
nce 目录 摘要I ABSTRACT II 1绪论1 1.1课题目的、意义及相关研究动态1 1.2国内外的发展概况2 1.3液压概况3 1.4液压工作原理4 1.5液压系统的设计步骤与设计要求5 2方案讨论及总体设计6 3液压系统的功能原理计算7 3.1液压缸液压系统设计要求分析7 3.2负载分析8 3.2.1工作负载8 3.2.2摩擦负载8 3.2.3惯性负载8 3.2.4液压缸在各阶段的负载值8 3.2.5负载图与速度图的绘制9 3.3液压缸主要参数的确定10 3.4计算和确定2个液压缸的主要尺寸10 3.5制定液压回路方案，拟定液压系统原理图19 3.6计算与选择液压元件21 3.6.1液压泵及驱动电机计算与选定21 3.6.2液压控制阀和液压辅助元件的选定22 3.6.3油管的选择23 3.6.4液压系统的验算25 4结论与展望29 4.1结论29 4.2不足之处及未来展望29 致谢30 参考文献31