圆柱滚子轴承旋转精度数值计算及试验研究

发布时间：2018-03-05 12:50

本文选题：圆柱滚子轴承　切入点：旋转精度　出处：《机械工程学报》2016年15期 　论文类型：期刊论文

【摘要】：针对圆柱滚子轴承旋转精度,提出了轴承外圈径向跳动数值计算方法,并对外圈滚道形状误差进行了试验研究。根据轴承元件运动及几何关系,建立了轴承外圈径向跳动数值计算模型,分析了外圈滚道圆度误差幅值、圆度误差阶次、滚子个数以及径向游隙对轴承旋转精度的影响规律,并验证了模型的正确性。分析结果表明,外圈滚道圆度误差幅值对轴承旋转精度影响较大;当轴承外圈圆度误差阶次与滚子个数满足特定关系时,轴承旋转精度显著降低;对于外圈滚道圆度误差波形变化较剧烈的圆柱滚子轴承,滚子个数对其旋转精度影响较大。对轴承外圈滚道圆度误差试验研究结果表明,外圈滚道圆度误差服从正态分布;轴承外圈滚道圆度误差幅值随圆度误差阶次呈指数曲线变化;获得了外圈径向跳动与外圈滚道谐波分布参数的函数关系式,可用于外圈径向跳动的预测。
[Abstract]:Aiming at the rotary accuracy of cylindrical roller bearing, a numerical method for calculating radial runout of outer ring of bearing is put forward, and the error of raceway shape of outer ring is studied experimentally. The numerical model of radial runout of outer ring of bearing is established. The influence of roundness error amplitude, roundness error order, number of rollers and radial clearance on bearing rotation accuracy is analyzed. The results show that the roundness error amplitude of outer ring raceway has a great influence on the bearing rotation accuracy, and that the bearing rotation accuracy is significantly reduced when the order of roundness error and the number of rollers satisfy a specific relationship. For cylindrical roller bearing whose outer raceway roundness error waveform changes sharply, the number of rollers has a great influence on its rotation accuracy. The experimental results of raceway roundness error of outer ring raceway of bearing show that the raceway roundness error of outer ring is normal distribution. The amplitude of roundness error of outer ring raceway of bearing varies exponentially with the order of roundness error, and the function relation between radial runout of outer ring and harmonic distribution parameter of outer ring raceway is obtained, which can be used to predict radial runout of outer ring.
【作者单位】：西北工业大学机电学院;河南科技大学河南省机械设计及传动系统重点实验室;河南科技大学机电工程学院;
【基金】：国家自然科学基金(51375148) 河南省基础与前沿技术研究计划(142300413217) 河南省高等学校重点科研(15A460022) 河南省高校科技创新团队支持计划(15IRTSTHN008)资助项目
【分类号】：TH133.33

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