湖南大学学报（自然科学版）2016，Vol.43Issue(4)：67-74,8.
隔热涂层对磨床主轴动静压轴承热变形的影响研究∗
Thermal Deformation Research about Applying Heat Insulation Coating on Hybrid Bearing in Spindle of Grinder
摘要
Abstract
In order to reduce the thermal deformation and improve the accuracy of the grinding wheel spindle in high speed & precision grinder,the heat insulation coating was applied to the hybrid bearing with deep-shallow oil recesses.Using FLUENT and ANSYS two softwares,the thermal characteristics of the heat insulation coatings on the bearing with different thickness and different thermal conductivity were analyzed by some oil supply pressures of the bearing and the spindle speeds.The results show that temper-ature and thermal deformation of the hybrid bearing and their uniform distribution are gradually decreased with the increase of the thickness of the heat insulating coating and with the decrease of the thermal insula-tion coating's thermal conductivity and with the increase of the oil supply pressure and with the decrease of the spindle speed;Heat insulation coating can be the average bearing temperature distribution.High per-formance heat insulation coating will greatly reduce the thermal deformation of the bearing spindle and im-prove the accuracy of the spindle,the machining precision of the grinding machine with the spindle will be improved.关键词
高速精密磨床/主轴/液体动静压轴承/隔热涂层/温度场/热变形Key words
grinder/spindle/liquid hybrid bearing/heat insulation coating/temperature distribution/thermal deformation分类
机械制造引用本文复制引用
张华,郭力,许怡赦,胡靖..隔热涂层对磨床主轴动静压轴承热变形的影响研究∗[J].湖南大学学报（自然科学版）,2016,43(4):67-74,8.基金项目
国家科技重大专项资助项目(2012ZX04002-091),National Science and Technology Major Project(2012ZX04002-091) （2012ZX04002-091）
