圆柱滚子轴承的径向刚度分析

Radial stiffness analysis of cylindrical roller bearing

为了揭示滚子凸度和轴承转速对圆柱滚子轴承径向刚度的影响规律,采用隐函数微分方法,建立了考虑滚子凸度和轴承转速的圆柱滚子轴承径向刚度解析模型。分析了滚子凸度、轴承转速、径向游隙、径向载荷等因素对轴承径向刚度的影响规律,并与其他文献方法进行比较,验证了所建立解析模型的正确性。研究结果表明:圆柱滚子轴承径向刚度随滚子凸度、径向游隙的增加而减小,随着轴承转速、径向载荷的增加而增加;随着径向载荷的增大,滚子凸度、轴承转速、径向游隙等因素对轴承径向刚度的影响减弱。

To reveal the effect of roller convexity and bearing speed on the radial stiffness of cylindrical roller bearing,an analytical model of cylindrical roller bearing radial stiffness considering roller convexity and bearing speed was established.The influences of factors such as roller convexity,bearing speed,radial clearance and radial load on the radial stiffness of the bearing were analyzed.The established model was compared with other literature methods to verify the correctness.The research results showed that the radial stiffness of cylindrical roller bearings decreased with the increase of roller convexity and radial clearance,and increased with the increase of bearing speed and radial load.With the increase of radial load,the influences of roller convexity,bearing speed and radial clearance on the radial stiffness of the bearing were weakened.