Novel ball bearing groove curvature coefficient designing method

Abstract

The invention discloses a novel ball bearing groove curvature coefficient designing method. The method comprises the following steps that firstly, according to the working environment, a three-dimensional model is established by UG NX three-dimensional software; secondly, a working condition is loaded, the kinetic simulated analysis is carried out, and the rolling ball bearing load is measured; thirdly, a three-dimensional simulation model is established by the UG NX three-dimensional software, one quarter of the three-dimensional simulation model is taken to be as a finite element simulation model; fourthly, grids are divided; fifthly, a boundary loading mode and a constraint condition are carried out; sixthly, contact setting is carried out; seventhly, a solution scheme is set; eighthly, a simulation result is analyzed, the consensus of the strain of an inner ring and an outer ring of a ball bearing is guaranteed, and meanwhile structural optimizing is carried out. According to the technical scheme, the consensus of the deformation of the inner ring and the outer ring of the ball bearing is effectively guaranteed, the condition that the structural parameter is deviated from the ideal position is maximally lowered, the reliability of the performance and service life is guaranteed, and meanwhile the same service life design of bearing components is achieved.

Description

technical field [0001] The invention relates to the technical field of bearing design, in particular to a novel method for designing the curvature coefficient of ball bearing grooves based on UG NX equal strain. Background technique [0002] Since the rolling bearing is a high-tech precision mechanical product, a slight change in the structural parameters of the bearing will have a great change in its performance, especially for precision bearings and high-speed bearings. The groove curvature coefficient of a ball bearing is one of the most critical parameters that must be considered when designing a ball bearing. [0003] According to the application status of existing rolling ball bearings, there are a series of aspects that need to be improved, such as speed performance, temperature rise performance, vibration performance, etc. The quality of bearing performance is inseparable from its structural parameters and materials. The groove curvature coefficient is one of the ke...

AI Technical Summary

Problems solved by technology

This design method has some defects: First, the Hertzian contact theory is summarized on the basis of a large number of experiments. The maximum contact stress; second, the deformation of the inner and outer rings of the bearing is nonlinear, and the thickness of the inner and outer rings of the bearing is not the same. Therefore, even if the equal stress design is realized, the structural parameters of the inner and outer rings cannot be guaranteed to deviate from The ideal structure is the same; thirdly, the original design method cannot guarantee the true equal-life design of the inner and outer rings of the bearing. In general, a certain ring will fail first during use.