The thermal stability of high-speed ball bearings

被引：0

作者：

Ding, Hongfu ^{[1
]}

Wang, Fengtao ^{[1
]}

Jing, Minqing ^{[1
]}

Li, Yousheng ^{[2
]}

Wang, Yong ^{[3
]}

机构：

[1] School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an,710049, China

[2] School of Mechanical Engineering, Bao Ji University of Arts and Sciences, Baoji,721016, China

[3] Henan New Taihang Power Source Co., Ltd., Xinxiang,453000, China

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2017年 / 36卷 / 14期

关键词：

Thermodynamic stability - Viscosity - Speed - Ball bearings - Structural optimization;

D O I：

10.13465/j.cnki.jvs.2017.14.026

中图分类号：

学科分类号：

摘要：

Based on the quasi static model of ball bearings, the variation of oil viscosity, heat source and bearing structure sizes with the change of temperature were considered, and then a high-speed ball bearing thermal calculation model was established. The transient thermal characteristics of high-speed ball bearings were obtained by solving the thermal equilibrium equations. Then, the effects of different parameters on the heat generation, temperature and thermally-induced load of ball bearings were studied, which may provide a theoretical basis for the lubrication parameters selection, structure optimization, thermal failure mechanism analysis and faults analysis of high-speed ball bearings. The results show: the inner ring speed and axial load have obvious influences on the thermal equilibrium temperature and thermally-induced load and the thermally-induced load can be decreased by using lower viscosity oils and increasing the convection coefficient of air. The predicted theoretical results are in good agreement with the experimental results. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：168 / 173