Abstract:According to the deformation coordination condition and the moment balance equation of the configuration, a static model was developed to enhance the load sharing characteristics of the face gear and cylindrical gear twice load split transmission configuration, taking into consideration the center deviation of gears, bearing deformation of shaft and bearing, etc. The influence of the torsional stiffness and supporting stiffness of the shaft on the load sharing characteristics was studied. The results showed that the input shaft torsional stiffness had little influence on the load sharing characteristics. When the ratio of the torsional stiffness of the split torque shaft was appropriate, the face gear split torque drive could obtain better load sharing characteristics, but the load sharing performance of the cylindrical gear split torque drive remained almost unchanged. Reducing the torsional stiffness or increasing the supporting stiffness of the compound gear shafts could improve the load sharing characteristics of the whole configuration. Therefore, in order to improve the load sharing characteristics of the transmission structure, the torsional stiffness and supporting stiffness of the shaft need to adopt the method of parameter matching design.