高速圆柱滚子轴承保持架运行稳定性分析

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (9) : 100-108.

论文

高速圆柱滚子轴承保持架运行稳定性分析

王自彬 1，邓四二 1, 2 ，张文虎 1，黄晓敏 3

作者信息 +

Operational stability analysis for cage of high-speed cylindrical roller bearings

DENG Sier 1,2 WANG Zibin 1 ZHANG Wenhu 1 HUANG Xiaomin3

Author information +

文章历史 +

摘要

基于滚动轴承动力学理论，建立了高速圆柱滚子轴承的非线性动力学微分方程组，采用预估-校正的GSTIFF(Gear stiff)变步长积分算法对其进行求解，使用盒维数评价保持架质心轨迹的混乱程度，研究了保持架间隙比、轴承转速、轴承径向载荷、轴承径向游隙以及滚子个数等因素对保持架运行稳定性的影响。研究结果表明：盒维数能够发现相似保持架心轨迹之间的差别，并对保持架稳定性进行量化描述；较大的保持架间隙比不利于保持架的稳定运行，存在最佳间隙比使保持架质心轨迹涡动效果最好，保持架运行最稳定；内圈转速较低时，保持架质心不发生涡动，质心轨迹非常混乱，保持架运行不稳定；随着转速、滚子个数的增加，保持架运行稳定性增加；随着径向载荷、径向游隙的增加，保持架运行稳定性先增大后减小。

Abstract

Based on the dynamics theory of the rolling bearing, the nonlinear dynamic differential equations of high-speed cylindrical roller bearing were established and solved by the predicted-corrected GSTIFF(Gear stiff) integer algorithm with variable steps. Box dimension was used to evaluate the disorder level of orbits of cage's mass center. The influence of cage’s clearance ratio, bearing speed, bearing radial load, bearing radial clearance and the number of rollers on cage operational stability was investigated. The results show that: Box dimension can find the difference between similar orbits of cage’s mass center and describe the operational stability of cage quantitatively; Larger cage’s clearance ratio is not beneficial to cage’s stable operation, and there is an optimum clearance ratio that can make orbits of cage’s mass center whirl in the best effect, and the operation of the cage in the most stable state ; the mass center of cage doesn’t whirl when the rotation speed of inner ring is lower, and the cage center-of-mass orbits is complex, the operation of the cage is unstable; the operational stability of cage increased with the increase of rotation speed and the number of rollers; the operational stability of cage increased firstly and then decreased with the increase of radial load and radial internal clearance.

导出引用

王自彬 1，邓四二 1, 2,张文虎 1，黄晓敏 3. 高速圆柱滚子轴承保持架运行稳定性分析[J]. 振动与冲击, 2019, 38(9): 100-108

DENG Sier 1,2 WANG Zibin 1 ZHANG Wenhu 1 HUANG Xiaomin3 . Operational stability analysis for cage of high-speed cylindrical roller bearings[J]. Journal of Vibration and Shock, 2019, 38(9): 100-108

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