Research On V-shaped Inner Ring Structure And Its Virtual Machining Of Ball Bearing

Deep groove ball bearing is an important mechanical basic component.Its simple structure and convenient use are the most common and widely used rolling bearings.In the deep groove ball bearing,the contact area between the steel ball and the inner ring is fixed,the surface contact point is subjected to the high-frequency contact stress,and the pressure surface generates an additional large sliding,which causes the wear of the steel ball to be intensified.Therefore,improving bearing life is especially important for the development of the machinery industry.In this paper,a new V-Type Inner Ring structure is proposed,and the new bearing structure is studied through theoretical analysis,simulation and experiment.At the same time,the new inner ring structure is processed and analyzed by virtual machining.In order to determine the parameters of the V-Type Inner Ring structure,firstly,the movement of the steel ball in the operation of the V-Type inner ring bearing is analyzed in depth,and the dynamic equation of the steel ball in the vertical V-shaped groove surface and along the V-shaped groove surface is established,so as to avoid the slippage when the steel ball is running.That is,the condition of pure rolling;based on the research of pure rolling,the equation of motion of three contact points when the steel ball is in contact with the inner and outer rings is established,the motion law of the steel ball is analyzed,and the relationship parameters of the new inner ring and the parameters of the steel ball are analyzed,and the main parameters affecting the contact area of the steel ball are obtained,and the basic analysis and certain preparation for the subsequent simulation are made.The dynamic simulation analysis of the new inner ring bearing was carried out by ADAMS.The simulation results of the angular velocity,rotation angle and contact trajectory were analyzed.The MATLAB software was used to simulate the surface contact trajectory theory of the steel ball to obtain the contact formed on the surface of the steel ball,and the contact point distribution model formed on the surface of the steel ball is obtained.The kinetic simulation analysis results are compared with the numerical simulation results to determine the inner ring structural parameters that have a great influence on the surface contact area of the steel ball,and the new inner ring structural parameters are initially determined.The newly determined inner ring structure is processed,the tool path is generated by CAD software,the NC program is generated,and the virtual machining software VERICUT is used to simulate and analyze the inner ring structure,and the processed parts are compared with the theoretical model to obtain the inner ring structure that meets the accuracy requirements.Combined with the NC program to process the inner ring structure,the bearing test bench was built,and the operation of the steel ball was recorded by high-speed photography technology.The results were compared with the simulation results.It was observed that the steel ball was deflected according to a certain deflection angle to verify the rationality of the simulation and theory.In this paper,a V-Type bearing inner ring structure is proposed.By changing the contact mode between the inner ring and the steel ball,the contact area of the steel ball surface is increased,which has certain significance for improving the bearing life.