Research on Thermally Induced Preload of Machine Tool Spindle Bearings Based on FBG Sensor

被引：2
|
作者：
Lu T. [1 ]
Qiu M. [1 ,2 ]
Dong Y. [1 ]
Zhang Y. [1 ]
Du H. [1 ]
机构：
[1] School of Mechanical Engineering, Henan University of Science and Technology, Luoyang
[2] Henan Collaborative Innovation Center for Advanced Manufacturing of Mechanical Equipment, Luoyang
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2021年 / 32卷 / 17期
关键词：
Fiber Bragg grating(FBG); Machine tool spindle bearing; Temperature distribution; Thermally induced preload;
D O I：
10.3969/j.issn.1004-132X.2021.17.002
中图分类号：
学科分类号：
摘要：
Aiming at the difficult and inaccurate testing of the machine tool spindle bearing preloads, an online monitoring method was proposed herein based on FBG sensor. Firstly, the thermal analysis model of the spindle unit was established considering the heat generated by the spinning friction of the rolling elements, the contact thermal resistance between the inner/outer ring of the bearings and the spindle/housing. Secondly, a thermally induced preload test system for the spindle bearings was built. Through simulation and experimental comparison, the temperature distribution and thermally induced preloads of the key components of the spindle unit were analyzed at different speeds. The results show that the temperature measured by FBG sensor and thermal sensor is consistent with the simulation temperature prediction, which verifies the accuracy and reliability of the method proposed. © 2021, China Mechanical Engineering Magazine Office. All right reserved.
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页码：2025 / 2031and2039
相关论文
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