基于轻量化的角接触球轴承套圈挡边尺寸设计

Geometry Design of Ring Ribs of Angular Contact Ball Bearings Based on Lightweight

基于滚动轴承的轻量化设计原则,根据角接触球轴承套圈滚道和滚动体之间的接触几何关系,建立了套圈挡边高度的计算模型,并结合赫兹点接触理论和轴承内部位移-变形协调条件给出了求解方法。以某高速角接触球轴承为例进行了计算并分析了工况参数对套圈挡边尺寸设计的影响规律,结果表明工作在重载荷工况下的轴承必须将挡边高度增大,而工作在高转速工况下的轴承其外圈挡边高度可以适当减小。分析结果可为轴承优化设计和失效分析提供参考依据。

Based on the principle of lightweight design of rolling bearings,a calculation model of rib height of angular contact ball bearings is established according to geometry relationship of contact zone between raceways and ball. Combing with the Hertz point contact theory and displacement-deformation coordination relationship of bearings,the solution method is developed. Using a high-speed angular contact ball bearing as the example,the influence rule of working conditions of bearings on design of rib height is analyzed. Results show that the rib height should be increased while the bearing works on the heavy load condition,but the rib height of outer ring could be decreased slightly while the bearing works on the high speed condition. Results could afford reference for optimization and failure analysis of angular contact ball bearings.