Study on Dynamic Characteristics of Planetary Gear Transmission System with Flexible Ring Gear
A rigid flexible coupling dynamic model of planetary gear transmission system with inner ring gear flexibility is estab-lished.Considering the time-varying meshing stiffness and static transmission error excitation,the dynamic response characteris-tics of planetary gear transmission system are calculated by Runge-Kutta numerical algorithm,and the dynamic stress and de-formation distribution on gear pitch and tooth root are studied.The results show that the flexible inner gear ring reduces the dy-namic load distribution coefficient between the inner gear ring and the planetary gear,and the load sharing performance of the transmission system is significantly improved.For the fixed inner gear ring,the maximum stress is located at the midpoint along the axial direction,and the maximum dynamic deformation along the tooth width direction appears at the end of the tooth sur-face,and the dynamic deformation shows a decreasing trend from the top edge of the tooth to the edge of the tooth root.Because the support stiffness is small,the load distribution coefficient decreases rapidly with the increase of thickness,and the dislocation of planetary pin and static transmission error have a negative impact on the load distribution coeffiicient of the system.
Planetary Gear Transmission SystemFlexible Gear RingDynamic ResponseLoad Distribution Co-efficient
万方数据
维普
