In view of the broken of the 3rd driven gear of main transmission in experiment,the author processed the analysis of the failure gear used KISSsoft after excluding factors of the material and heat treatment.Considered the dimensions and supports of shaft,the results showed the things as follows:Firstly,it was mainly caused by the shortage of the gear's con-tact strength.Secondly,there was eccentric load due to inhomogeneous load.The things which was consistent with phenomenon of tooth broken in experiment.According to the above mentioned,the author increased shaft outer diameter and produced tooth trace modification which improved the gear's contact strength and eccentric load,reduced meshing impact、vibration and noise.
Tooth brokenEccentric loadFace load distribution along toothContact strengthTooth trace modificationCrownVibration
维普
万方数据
