摘 要

车刀刃磨机进行自动磨削操作的机床。设备液压系统主要涉及的是液压系统的设计与计算，包括：集成块零件与装配设计、液压站的装配设计以及液压缸与油箱等部件的设计与计算等等。本课题应用CAD制图代替传统手绘，图纸更加精确。同时采用集成块设计，缩短了开发周期，易于修改。在设计的过程中根据相关设计参数获取相关数据，并参考有关专业资料，吸取前人的设计经验，并根据客观实际和掌握的知识加以改进，最终在指导老师的帮助下完成车刀刃磨机液压系统的整个设计。

本课题所设计的液压系统采用2.5MPa的系统压力，不仅简化了整个集成块以及液压系统的设计，而且设计出的液压系统易于维修、操作安全、结构简单、移动方便、成本低廉。

关键词：车刀刃磨机；液压系统设计；集成块；液压站

DESIGN OF HYDRAULIC SYSTEM OF LATHE TOOL SHARPENING MACHINE

ABSTRACT

The title of this subject is the design of hydraulic system of lathe tool sharpening machine. The main part of hydraulic system are design and calculation of hydraulic system. They are include design of integrated block parts and assembly, hydraulic station and the units of hydraulic cylinder and tank. This subject uses CAD drawings instead of traditional drawings, making it more accurate. Also, it adopts integrated block design, cutting down the development cycle and becoming easier for modify. According the relevant parameters to access relevant data during the process of design, and consulting lots of domestic and foreign data, the subject finally finished in the help of guiding professor.

This design of hydraulic system uses 2.5 MPa system pressures, so as to simplify the whole design of integrated block and hydraulic system, and have more advantages such as easy for maintenance, safer operation and simple construction, low cost and convenient to move.

Key words: Cutting machine tools; Hydraulic system design; Integrated block; Hydraulic station

目 录

前言 ...................................................1

1设计简介及任务 ..........................................2

1.1设计内容及要求 ..........................................2

1.1.1题目名称：刀具刃磨机液压系统设计..............................2

1.1.2设计要求 .............................................2

1.2液压传动与控制的优缺点.......................................2

1.2.1主要优点 .............................................2

1.2.2主要缺点 .............................................2

1.3液压系统的组成及原理 .......................................2

1.3.1液压系统的组成 .......................................3

1.3.2电控系统 .............................................4

1.4液压系统结构的特点 .......................................4

2液压系统的设计与计算 .......................................5

2.1设计原则及依据 .......................................5

2.1.1液压系统的设计原则.......................................5

2.1.2液压系统的设计依据.......................................5

2.2液压系统的计算 .......................................5

2.2.1明确设计要求，进行工况分析.................................5

2.2.2液压系统具体计算 .......................................6

2.3液压系统的设计 ..........................................9

2.3.1液压泵规格和电动机功率及型号确定 ...........................10

2.3.2确定各类控制阀 ..........................................10

2.3.3确定油箱容量与结构 .......................................11

2.3.4选用液压油 .............................................11

3液压传动机构的设计与计算 ....................................12

3.1液压缸结构设计 ..........................................12

3.1.1液压缸缸体与缸盖的连接结构 .................................12

3.1.2活塞与活塞杆的连接结构 ....................................12

3.1.3活塞与缸体的密封形式 ....................................13

3.1.4活塞杆的导向装置 .......................................13

3.1.5防尘装置 .............................................14

3.1.6液压缸的缓冲装置 .......................................14

3.1.7液压缸的排气装置 .......................................14

3.2液压缸的主要零件的材料和技术要求 ..............................14

3.2.1缸体选用45号铸钢.......................................14

3.2.2缸盖选用Q235 ..........................................14

3.2.3活塞选用耐磨铸铁 .......................................15

3.2.4活塞杆选用实心杆材料为45号钢..............................15

4集成块装置的设计 ..........................................16

4.1概述及特点 .............................................16

4.1.1集成块的一般结构 .......................................16

4.1.2集成块的特点 ..........................................17

4.2集成块回路设计 ..........................................17

4.2.1集成块装置的设计步骤 ....................................17

4.2.2集成块的设计 ..........................................19

5液压站装置设计 .............................................22

5.1油箱装置设计 .............................................22