配对角接触球轴承静态力学特性

Static mechanical characteristics of paired angular contact ball bearings

根据角接触球轴承实际的工作状态,建立背靠背配对安装形式的角接触球轴承接触模型,计算配对轴承在径向、轴向和力矩载荷联合作用下的载荷分布以及接触应力,并将理论值与Ansys有限元法得出的结果进行对比,验证计算结果的准确性。详细研究了在联合载荷的作用下,配对轴承静态载荷分布以及接触特性的变化规律。研究结果表明:配对角接触球轴承的内圈在联合载荷作用下发生位移,使载荷分布不均匀,接触应力主要集中在载荷对称线附近的部分钢球上,改变联合载荷会使两列轴承载荷分布规律以及接触特性发生变化。

According to the actual working condition of the angular contact ball bearing,the angular contact ball bearing contact model of the back-to-back paired installation form is established. The load distribution and contact stress of the paired bearing under the combined action of radial,axial and moment loads are calculated. The theoretical values are compared with the results obtained by Ansys finite element method to verify the accuracy of the calculation results. The variation of the static load distribution and contact characteristics of the paired bearings under the action of the combined load is studied in detail. The results show that the inner ring of the paired angular contact ball bearing is displaced under the combined load,so that the load distribution is not uniform. The contact stress is mainly concentrated on the steel balls near the load symmetry line. Changing the combined load will cause the load distribution law and contact characteristics of the two row of bearings to change.