精密磨床主轴轴颈形状误差对动静压轴承性能的影响

杨军; 胡靖

doi:10.13433/j.cnki.1003-8728.2016.0612

精密磨床主轴轴颈形状误差对动静压轴承性能的影响

doi: 10.13433/j.cnki.1003-8728.2016.0612

杨军,
胡靖

1.
湖南大学机械与运载工程学院, 长沙 410082

基金项目:

国家科技重大专项(2012ZX04002-091)资助

详细信息

作者简介:
杨军(1964-),副教授,硕士,研究方向为工程材料的切削、磨削新技术、精密数控加工装备等,yj1001@hnu.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2014-01-18
- 刊出日期: 2016-06-05

Influence of Roundness Error of Spindle on Performance of Hybrid Liquid Bearing in Precision Grinder

Yang Jun,
Hu Jing

1.
College of Mechanical and Automotive Engineering, Hunan University, Changsha 410082, China

摘要

摘要: 考虑主轴轴颈制造中的圆度误差和圆柱度误差,应用FLUENT软件,对精密数控磨床砂轮主轴深浅油腔动静压轴承的性能进行了分析。结果表明:主轴轴颈圆度误差和圆柱度误差的种类对动静压轴承性能的影响各不相同,随着轴承间隙的变化而变化。动静压轴承承载能力、功耗以及油膜最高温升等性能参数都会随着主轴轴颈误差幅值的增加而增加;但动静压轴承流量的变化趋势却相反。要提高磨削加工精度,必须考虑精密数控磨床主轴轴颈的形状误差的影响。
- 精密磨床 /
- 主轴 /
- 动静压轴承 /
- 轴颈圆度误差 /
- 轴颈圆柱度误差
Abstract: Considering the roundness error and cylindrical error of spindle in precision grinder, we analyze the performances of hybrid bearing with deep-shallow oil chamber with FLUENT software. The influence of the different types of roundness error and the cylindrical error of spindle on the performance of the hybrid bearing varies with the change in bearing clearance. The results show that load capacity, power consumption and the highest temperature rise of the oil film in the bearing will increase with the increasing of error amplitude, but the variation rule in the bearing oil flow is opposite. The influences of the roundness errors of spindle on the performances of hybrid bearing in the spindle of precision grinder cannot be ignored in order to improve grinding precision.
- cylindrical error /
- hybrid bearing /
- precision grinding machine /
- roundness error /
- spindle

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参考文献(12)

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