摘要I Abstract II 1液压系统的设计要求1 1.1液压传动系统的技术要求1 1.2工作环境和工作条件1 2确定液压缸的结构尺寸及工况图1 2.1负载图和速度图1 2.1.1负载分析1 2.1.2负载图和速度图2 2.2初定液压缸的结构尺寸3 2.2.1初选液压缸的工作压力3 2.2.2计算液压缸的结构尺寸4 2.3液压缸工况图5 3拟定液压回路6 3.1选择液压回路6 3.1.1调速回路及油源形式6 3.1.2快速回路及速度换接回路6 3.1.3换向回路7 3.1.4调压回路7 3.1.5调速回路7 3.1.6平衡回路8 3.1.7行程终点的控制方式9 3.2组成液压系统图9 4计算和选择液压元件10 4.1确定液压泵的规格和电机功率10 4.1.1液压泵工作压力的计算10 4.1.2液压泵流量的计算11 4.1.3液压泵规格的确定11 4.1.4电机功率的确定11 4.2液压阀的选择11 4.3管件的选择及计算13 4.3.1管路、管接头的选择13 4.3.2确定油管的内径13 4.4油箱容量的计算13 4.5液压缸的设计14 4.6液压传动装置的总体设计14 4.7液压系统的安装及配管14 4.7.1液压系统安装前注意事项14 4.7.2液压系统安装时注意事项14 5验算液压系统技术性能15 5.1液压缸的速度15 5.2系统的效率16 5.2.1回路中的压力损失16 5.2.2液压泵的工作压力17 5.2.3顺序阀的调整压力17 5.2.4液压回路和液压系统的效率18 5.3液压系统发热与温升验算18 结论20 参考文献21 致谢22 立式钻镗组合机床动力头液压传动机构设计 摘要：钻镗组合机床是机械、电气、液压等紧密联系组合成的综合体。本次设计主要针对立式钻镗组合机床液压动力头传动机构工作原理分析与设计。由于动力头采用液压驱动，设计将对动力头的主运动、进给运动、控制系统以及机械结构特点等进行分析，对动力头的主要参数和液压系统各部分元件参数将做设计计算，并将对于动力头结构与工作原理做具体的学习和论述。通过查阅关于组合机床动力头液压传动系统的资料，对现代组合机床液压系统类型、工作特点作了充分了解，并对其结构、工作原理等进行系统性分析，结合设计要求及所了解的专业知识进行逐步的设计。设计过程中，对各个步骤实现有序进行，利用相关手册完成精细计算，通过老师的指导实现设计的完成。此次设计的完成，立式钻镗组合机床的理论设计得到实践，对现代组合机床的进一步发展提供理论基础。 关键词：钻镗组合机床；动力头；液压传动系统 Vertical Drilli
ng a
nd Bori
ng Modular Machi
ne Tool Power Head Hydraulic Tra
nsmissio
n Mecha
nism Desig
n Abstract： Drill bori
ng modular machi
ne tool is closely li
nked to the mecha
nical, electrical, hydraulic, complex. This desig
n mai
nly for vertical drilli
ng bori
ng modular machi
ne tool hydraulic power tra
nsmissio
n mecha
nism pri
nciple a
nalysis a
nd desig
n. Because of the power head adopts hydraulic drive, the desig
n will be the mai
n moveme
nt of power head, feed moveme
nt, co
ntrol system a
nd mecha
nical structure characteristics were a
nalyzed, a
nd the head of the mai
n parameters a
nd all parts of the hydraulic system compo
ne
nts will do desig
n calculatio
n, a
nd to the structure a
nd worki
ng pri
nciple of the power head will do detailed study a
nd discuss. Through access to i
nformatio
n about power head hydraulic tra
nsmissio
n system of modular machi
ne tool, the combi
natio
n of moder
n machi
ne tool hydraulic system types, job characteristics are fully u
ndersta
nd, a
nd its structure, worki
ng pri
nciple, systematic a
nalysis, combi
ned with the desig
n requireme
nts a
nd k
now the professio
nal k
nowledge of the desig
n of the step by step. Desig
n process, for each step to realize orderly, usi
ng releva
nt ma
nual completed detailed calculatio
n, the completio
n of desig
n was achieved by the guida
nce of the teacher. The completio
n of the desig
n, the vertical auger bori
ng modular machi
ne tool desig
n theory a
nd practice, to provide theoretical basis for further developme
nt of the moder
n combi
natio
n machi
ne tools. Key words: drill bori
ng modular machi
ne tool ; power head; hydraulic tra
nsmissio
n system