斜面兜孔圆柱滚子轴承保持架稳定性分析

Stability Analysis on Cage of Cylindrical Roller Bearing with Inclined Pockets

以某型斜面兜孔保持架圆柱滚子轴承为研究对象,基于ADAMS建立轴承动力学分析模型,引入保持架质心涡动速度偏差比和轨迹盒维数,分析了兜孔前、后壁倾角对保持架稳定性的影响,得出前壁倾角为10°、后壁倾角为-10°时保持架稳定性较好,以此结果对轴承进行优化。分析了转速、径向载荷、间隙比对优化前后轴承保持架稳定性的影响,结果表明:优化轴承和普通轴承的保持架稳定性随转速、径向载荷增大变好,随间隙比增大变差,优化轴承的稳定性优于普通轴承。

Taking a cylindrical roller bearing with inclined cage pockets as the research object,the dynamic analysis model of the bearing is established based on ADAMS,the deviation ratio of vortex velocity and box dimension of trajectory of cage center of mass are introduced,and the effect of inclination angle of front and rear walls of pockets on stability of cage is analyzed.The stability of cage is better when the inclination angle of front wall is 10°and the inclination angle of rear wall is-10°.Based on the result,the bearing is optimized.The effects of rotating speed,radial load and clearance ratio on stability of cage before and after optimization are analyzed.The results show that for optimized bearing and ordinary bearing,with the increase of rotating speed and radial load,the stability of cage is better,and with the increase of clearance ratio,the stability becomes worse;the stability of optimized bearing is better than that of ordinary bearing.