Tooth profile modification and tooth contact analysis of precision forging spiral bevel gear
1. School of Mechatronics Engineering, Henan University of Science ＆ Technology, Luoyang, Henan 471003, China; 2. Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing of Henan Province, Henan University of Science ＆ Technology, Luoyang, Henan 471003, China
Abstract：To improve the contact performance of precision forging spiral bevel gear, a fully conjugated gear surface with predesigned transmission relation was established based on the pinion tooth surface model and the pinion machiningtool parameters. Taking the conjugate surface as base level, an approach was proposed to built second order easeoff surface. Based on the discrete tooth surface, the contact pattern and the transmission error curve were obtained by computational method with the critical interference judging of meshing state, and the simulation results were basically consistent with the predesigned transmission relation. The effects of second order easeoff surface parameters on the transmission error curve and contact pattern of tooth surface were also investigated. The results show that the accurate control on the length and location of the contact ellipse and the angle of the contact path can be realized by the easeoff surface parameters.
2018, Vol. 39 
