Analysis of Meshing Performance of a New Type of High Order Fan Rack Pair
At present,the non-circular gear pair of automobile steering gear generally adopts C0 order continuous variable trans-mission ratio curve,and the tooth profile of the fan has sharp points and is not smooth.There are sudden changes in speed and ac-celeration,and the transmission is not smooth enough.For this reason,a continuous variable transmission ratio curve of order C2 was designed based on a quaternary polynomial function.The tooth profile normal method was used to solve the tooth profiles of different continuous order fans.The calculation formula of tooth profile curvature was derived based on the finite difference method.Comparing and analyzing the characteristics of tooth profile structure of C0,C1 and C2 order transmission ratio curve,the change characteristics of speed and acceleration in transmission and the smoothness of tooth profile,the simulation results show that the higher the continuous order of the transmission ratio curve,the smoother the tooth profile of the non-circular gear pair.
Automobile Steering GearNon-Circular GearTransmission Ratio CurveSuccessionSmooth Tooth Profile
万方数据
维普
