Cylindrical Helical Gear And Face Gear Meshing Transmission Geometry And Statics Simulation

This paper studied a face-gear drive with a helical involute pinion based on differential geometry and theory of gearing, and formed the surface of the face gear and the pinion. Contact path was also studied provided that the tooth surface was rigid under the condition of installation error. The tooth surfaces of the face gear and the pinion were formed and geometry model of the teeth was built by UG, and bending stresses and contact stresses of the gear were studied by ANSYS.In the analysis of the characteristic of gear meshing, it focused on intersected-shaft face-gear meshing with a helical involute pinion. Based on the surface equation of the helical involute pinion, the equation of the face gear was deduced by the theory of gearing and the conditions of nonundercutting and nonpointing were studied. The localization of the bearing contact was achieved by setting more tooth number of the shaper than the helical involute pinion. The contact path of the rigid surfaces was also studied on the misaligned drive system. The error of installation was decomposed to three kinds of decoupled errors—the offset, the radial error, and the axial error. The location of the contact path on the tooth surface was calculated accurately and simulated by MATLAB program when one kind of misaligned error was existed and the other two errors were assumed zero.Bending stresses and contact stresses of the gears were investigated by finite element method in the static analysis. This paper studied the bending stresses of the root of gears by ANSYS when concentrated force was applied to the top of the gear. It indicates that the location of a concentrated force affects the stress distributions at the root of the gear tooth. In the contact analysis, one pair of gears and several pairs of gears were investigated.