磨床改造中液体静压轴承的设计

机械设计制造及其自动化论文，论文编号:JX1475  论文字数:12279.页数:30  附CAD图

 摘要
 机床及其它机械设备正向高速、高精度、高效率、大型化发展，对轴承等关键元件的要求亦随之提高。液体静压技术是保证轴承具有高精度、高效率、高承载、长寿命等优点的一门较新技术，已得到日益广泛的应用，并取得了可喜的成绩。　　本文论述了M131W型磨床液体静压轴承磨头改装设计。主要内容有：液体静压轴承的设计、节流器的设计、供油系统的设计及主轴的设计等。　　液体静压轴承依靠液压系统供给压力油,经过节流器,进入轴承的油腔,把轴浮在轴承中,保证轴在任何状态下轴承都处于完全液体摩擦的状态.在各种运动速度下,具有承载能力高、摩擦系数低、刚度高,回转精度高,精度保持性好,寿命长等特点.　　静压主轴轴承系统的设计，本文选用了径向液体静压轴承，毛细管节流器等作为主要设计对象，并对其原理进行阐述。通过改装设计，在费用不高的情况下，使设备克服了主轴的抱轴卡死现象，提高了机床的性能。　　 关键词：主轴  摩擦  液体静压轴承  毛细管节流器  磨头改装设计     

Abstract
 Machine tools and other machinery and equipment are high-speed, high precision and high efficiency, large-scale development of key components such as bearings also increases the requirements. Hydrostatic bearing technology is the guarantee that with high precision and high efficiency, high load, long-life advantages of a relatively new technology, has been increasingly widely used, and achieved gratifying results.
 This article discusses the type M131W bearing liquid grinding head grinding machine design modifications. The main contents are: the design of hydrostatic bearings, cutting the design, supply system design and the design of the spindle.
 Hydrostatic bearings rely on the hydraulic system pressure oil supply, after cutting, and the oil into the bearing cavity, the floating shaft in bearings in the shaft to ensure that in any state and must have the load bearing friction in a fully liquid state. Thus, the relative movement in a variety of speeds, with higher load-bearing capacity; very low coefficient of friction, high rigidity, high precision turning, precision to maintain a good, long life and so on.
 Hydrostatic spindle bearing system design, This article has been selected hydrostatic radial bearings, such as capillary restrictor design as the main object, and on principle. Through alterations in the cost of the case is not high, so that devices have to overcome the spindle axis is stuck to improve the performance of the machine
Keywords: Spindle  Friction  Hydrostatic Bearing  Capillary restrictor  Head design modifications
 目录
摘要 I
Abstract II
目录 III
第一章  绪论 1
1.1设计的背景和意义 1
1.2研究现状 3
1.3论文研究的主要内容 3
第二章 磨床介绍 4
2.1磨床类型和用途 4
2.2磨床的工作运动 4
第三章    液体静压轴承的承载原理 6
3.1静压轴承的结构介绍 6
3.2静压轴承的承载原理 8
3.3静压轴承中节流器的作用 9
第四章   液体静压轴承的结构形式、特点和应用 10
第五章   节流器的设计 12
5.1节流器的几种类型 12
5.2 节流比 12
5.3节流器设计 13
第六章   静压轴承磨床磨头改装设计 16
6.1主轴的简单介绍 16
6.2静压轴承设计 17
6.3轴套的设计计算 20
6.4液体静压轴承的加工工艺 21
第七章   液体静压供油装置的设计 22
7.1供油装置的选择 22
7.2供油装置的安全要求 22
第八章   总结 25
参考文献 26
致谢 27