温变间隙引起球轴承外圈缺陷频率偏差的研究
STUDY ON FREQUENCY DEVIATION OF OUTER RING DEFECT OF BALL BEARINGS CAUSED BY TEMPERATURE-VARIABLE GAP
- 机械强度 2025年47卷第10期 页码：36-42
- 作者机构：
沈阳城市建设学院 机械工程学院，沈阳 110167
- 作者简介：
XIA Bingxin, E-mail: 17604136033@163.com
- 基金信息：辽宁省教育厅基金项目(LJKXM202109)
DOI：10.16579/j.issn.1001.9669.2025.10.004
中图分类号： TH133.33收稿：2023-06-14，
修回：2024-02-23，
纸质出版：2025-10-15
- 稿件说明：
移动端阅览
夏冰新，王丹，商丽，等. 温变间隙引起球轴承外圈缺陷频率偏差的研究［J］. 机械强度，2025，47（10）：36-42.
XIA Bingxin，WANG Dan，SHANG Li，et al. Study on frequency deviation of outer ring defect of ball bearings caused by temperature-variable gap［J］. Journal of Mechanical Strength，2025，47（10）：36-42.
夏冰新，王丹，商丽，等. 温变间隙引起球轴承外圈缺陷频率偏差的研究［J］. 机械强度，2025，47（10）：36-42. DOI： 10.16579/j.issn.1001.9669.2025.10.004.
XIA Bingxin，WANG Dan，SHANG Li，et al. Study on frequency deviation of outer ring defect of ball bearings caused by temperature-variable gap［J］. Journal of Mechanical Strength，2025，47（10）：36-42. DOI： 10.16579/j.issn.1001.9669.2025.10.004.
摘要
宽温域内轴与球轴承间的间隙随温度升高而增大，同时轴承内部间隙也随温度变化而变化，轴承内圈受到增大的摩擦力矩，使内圈转速降低，从而导致外圈缺陷特征频率出现偏差，不利于球轴承的故障诊断和设备的稳定运行。考虑轴与轴承间的温变间隙，建立了宽温域内含外圈缺陷的轴承动力学模型，分析了模型的时域波形和频谱。仿真和试验结果表明，轴承振动随温度升高而加剧，外圈缺陷特征频率随温度升高而降低。根据工艺要求，适当增加轴与轴承间的过盈量，有利于降低宽温域内轴承系统的振动，提高轴承缺陷频率识别的准确性。研究结果为球轴承在宽温域的使用和健康监测提供了参考。
Abstract
The gap between the rotor and the ball bearing in a wide temperature range increases with the increase in temperature. At the same time
the internal clearance of the bearing changes with the temperature. The inner ring of the bearing is subject to increased friction torque
which reduces its speed. This results in the deviation of the characteristic frequency of the outer ring defect
which is not conducive to the fault diagnosis of the ball bearing and the stable operation of the equipment. Considering the temperature-variable gap between the rotor and the bearing
a dynamic model of the bearing with an outer ring defect in a wide temperature range was established. The time-domain waveform and frequency of the model were analyzed. The simulation and test results show that the bearing vibration increases with the temperature
and the characteristic frequency of the outer ring defect decreases with the increasing temperature. Properly increasing the interference between the rotor and the bearing according to process requirements is beneficial for reducing the bearing system vibration in a wide temperature range and improving the accuracy of bearing defect frequency identification. The results provide reference for the use and health monitoring of ball bearings in a wide temperature range.
关键词
Keywords
references
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