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对于滚动轴承的变形分析及计算,机床设计手册采用了Lun dberg-Stribeck的变形公式。由于公式中的变量包括滚动体的数目、滚动体的几何尺寸,必然给设计计算带来许多麻烦。Schenk和Pittroff已将零间隙的双列圆柱滚子轴承的计算公式作了变换,但对于球轴承的变换公式至今尚未见有文献报导。本文利用非线性回归分析方法,导出了以孔径d作为变量的球轴承变形公式。此外,对轴承的弹性位移系数β,也相应地以公式来表达。因此,对任意间隙的滚动轴承的变形都可以用数学公式求得,设计者可以不必求助于轴承手册和诺莫图,就可以很方便地算出轴承的变形量或刚度值。
For the deformation analysis and calculation of the rolling bearing, the deformation formula of Lun dberg-Stribeck is adopted in the machine design manual. As the variables in the formula include the number of rolling elements and the geometry of rolling elements, it is bound to bring a lot of trouble to the design calculation. Schenk and Pittroff have zero-gap double row cylindrical roller bearing the formula has been transformed, but the transformation formula for ball bearings so far has not been reported in the literature. In this paper, by using the nonlinear regression analysis method, the ball bearing deformation formula with the aperture d as the variable is derived. In addition, the elastic displacement coefficient β of the bearing is correspondingly expressed by the formula. Therefore, the deformation of any rolling bearing can be calculated using mathematical formulas, the designer can not resort to bearing manuals and normot, you can easily calculate the bearing deformation or stiffness values.