角接触球轴承中心位移与轴承反力关系研究
Research of Relation between Reacting Force and Center Displacement for Angular Contact Ball Bearing

采用2个自由度"准刚体模型"，在轴承中心轴向位移和径向位移已知的条件下，用力法求解出滚动体与轴承内外圈之间的接触力，进而求出轴承的径向反力、轴向反力与反力矩。讨论了滚动体离心力、陀螺力矩以及滚动体位置对滚动轴承中心位移与轴承反力关系的影响。计算结果表明：轴承中心轴向位移、径向位移增加导致轴承径向、轴向反力显著增加，轴承可视为非线性硬弹簧；滚动体离心力和陀螺力矩作用，使得轴承的径向反力和轴向反力减小，内外圈接触角变化；滚动体位置变化使得轴承径向反力与轴承反力距的变化幅度最大可达1.92%。
The 2-DOF pseudo-rigid-body model is applied, according to the mechanical and deformation characteristics of forced component in bearings. The contact force between the rolling bearing rings and the balls is obtained by force method in the given axial and radial displacement of bearing center. By this way the axial force, radial force and reacting torque of the bearing is also figured out. The influence of balls centrifugal force, gyroscopic moment, location of roller on force and deformation is also discussed. The results shows that:with the increasing of axial and radial deformation, the axial and radial reacting force increase significantly. At this time, the bearing can be considered as a nonlinear hard spring; the axial and radial reacting force will decrease due to the effect of centrifugal force and gyroscopic moment; the variation of reacting force and torque of bearing can be up to 1.92% as the change in the position of rolling