Solution of Bearing Outer Ring Dislodgement in HybridTransmission Durability Test
A hybrid transmission was dismantled for inspection after the endurance test was completed,and the outer ring of the output shaft bearing was found to have fallen off after dismantling.From the parts failure mode and design principle analysis,bearing housing shell wall thickness is not suitable,bearing outer ring effective contact area is not suitable;simulation found that the bearing housing stress concentration;the above two aspects of the design optimization,the output shaft bearing outer ring,differential bearing outer ring falling off the problem has been effectively solved;through the optimization of the simulation analysis and hardware,and at the same time the optimized prototype carry transmission assembly for all kinds of endurance test,are no longer occurring the same kind of test.Through the optimisation of simulation analysis and hardware,the optimised samples carrying transmission assembly were also subjected to various types of durability tests on the bench,and the same kind of problems did not occur again.
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