液压多工位进给机构设计（本科毕业论文设计）.doc

摘 要

液压系统主要是用于工作台的直线运动和回转运动，各个动力头和刀具的快速进退及切削进给，工件夹紧等。进给系统是钻机的重要组成部分，直接影响钻进效率、质量和钻机的功率消耗。进给回路一般有节流进给，压力平衡进给和调压进给3种方式。
论文通过对液压进给机构得了解，运用所学知识，设计计算了整个液压进给机构的原理。从最初的液压缸基本尺寸的计算和选择，到液压原理图的得出，以及整个系统装配图的绘制，从产品生产工艺，液压系统装配和液压各种回路等方面都对大学四年所学习的知识进行了总结，为我们走向液压方向岗位也奠定了良好的基础。在设计过程中，在windows操作系统条件下，用AutuCAD软件绘制了装配图。
论文主要研究包括以下一些方面：
1、设计液压六工位进给系统,用于曲轴自动平衡机去重系统，通过本课题的研究使学生了解钻液压驱动的工作原理、结构特点。
2、了解机构设计方法,学习和巩固所学的专业文化知识,培养学生结构设计能力。
3、绘制设备总图、主要零件图，编写设计说明书。


关键词：机床，液压，油缸，进给机构。





ABSTRACT

Hydraulic system is mainly used in workstations and the linear motion rotary movement, each power tool and the rapid advance and retreat and cutting feed, and the workpiece clamping. Feed system is an important component of the drilling rig, drilling a direct impact on the efficiency, quality and rig the power consumption. Feed into the circuit generally have to cut expenditure, the pressure balance and feed to surge into three ways.
Papers by hydraulic feeding mechanism in the understanding and use of the knowledge, design and calculation of the entire hydraulic feed the principle. From the initial hydraulic cylinder the size of the basic calculation and choice, to the hydraulic principle of the draw, and the system as a whole assembly of the draw, it has laid a good foundation for us to move towards the direction of hydraulic posts. In the design process, under the conditions of the windows operating system, we map software using AutuCAD the assembly.
The following major research papers, including some aspects:
1、Design the six-feeding hydraulic system for the crankshaft to automatically re-balance system, Through the study of this topic so that students understand drilling hydraulic-driven principle, structural features.
2、Design methods to understand, study and consolidate the culture of professional knowledge, training students structural design capacity.
3、Drawing the map equipment, mainly parts map, prepared by the Design Manual.


Key words: Machine tools, hydraulic, fuel tanks, feeding mechanism



目 录
中文摘要 Ⅰ
ABSTRACT Ⅱ
1、 绪论 1
1.1 引言 1
1.2 我国液压技术现状 1
1.3 液压缸设计的基本步骤 3
1.4 本论文主要研究工作 4
2、 液压传动系统的设计计算 5
2.1 液压缸在进给系统中的工作原理 5
2.2 液压缸结构图 6
2.3 液压系统的计算 6
2.3.1 计算外负载 6
2.3.2 确定液压系统参数 8
2.3.3 拟定液压系统原理图 12
2.3.4 系统PLC控制 16
2.3.5 选择液压元辅件 19
2.4 进给机构的设计 22
3、 液压系统的验算 23
3.1 系统压力损失计算 23
3.2 系统效率计算 26
3.3 系统的发热估算 27
4、 结论 28
附录 29
参考文献 30
致谢