低噪音深沟球轴承振动特性研究

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (10) : 12-19.

论文

低噪音深沟球轴承振动特性研究

邓四二1，孙朝阳2，顾金芳3，崔永存1

作者信息 +

Study on the vibration characteristics of low-noise deep groove ball bearings

DENG Si-er1，SUN Chao-yang2，GU Jin-fang3，CUI Yong-cun1

Author information +

文章历史 +

摘要

在滚动轴承动力学分析理论基础上建立含轴承零件工作表面波纹度的深沟球轴承动力学数学模型，并以某型号低噪音深沟球轴承为例，对不同结构参数、工况参数及谐波参数下低噪音深沟球轴承的振动特性进行理论分析。结果表明，合理选取径向游隙、内外沟曲率半径系数及保持架兜孔间隙等参数能使轴承本身达到减振降噪目的；振动值随轴承宽度增加逐渐减小；施加一定轴向载荷能有效降低轴承振动；存在的合理转速使用范围能有效降低轴承振动；内外滚道谐波阶次等于钢球数目整数倍时，轴承振动明显加剧；外滚道激励谐波对应的激励频率为，内滚道激励谐波对应的激励频率为；偶次谐波阶次钢球表面波纹度对轴承振动有激励作用；轴承旋转套圈会激励更大的轴承振动值；瞬时载荷增加或瞬时速度提高均会致轴承振动增大。

Abstract

Based on the dynamic analysis theory of rolling bearing , a mathematical model of deep groove ball bearing considering the effects of bearing working surfaces waviness is established. Taking a type of low-noise deep groove ball bearing as example, the bearing vibration characteristics are analyzed theoretically at various bearing structural parameters, working conditions and working surface waviness. The results show that: the bearing basic vibration value can be reduced by selecting reasonable primary parameters, for instance, bearing radial clearance, inner and outer raceway groove curvature radius coefficients, pocket clearance of cage, and so on; the bearing width larger, the bearing vibration value smaller; the bearing vibration value will decrease effectively when the bearing applied axial loads at a certain range; there is a reasonable speed range which can limit the vibration value effectively; the severe vibration occurs when the inner and outer raceway surface waviness orders is integral times to the numbers of balls; the waviness orders exciting frequency of outer raceway equal and the inner raceway is ; the even waviness orders of ball working surface make an exciting effect on the vibration value; the vibration produced by rotating ring is more severe than fixed ring; the vibration value will increase greatly when the bearing radial loads or rotating speed increased instantly.

导出引用

邓四二1，孙朝阳2，顾金芳3，崔永存1 . 低噪音深沟球轴承振动特性研究[J]. 振动与冲击, 2015, 34(10): 12-19

DENG Si-er1，SUN Chao-yang2，GU Jin-fang3，CUI Yong-cun1. Study on the vibration characteristics of low-noise deep groove ball bearings[J]. Journal of Vibration and Shock, 2015, 34(10): 12-19

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