Loaded tooth contact analysis of modified helical face gears

For improving the meshing performance of helical face gears, the present study adopts a design method of double crowning. By the profile and longitudinal modification in term of parabola type, the drive gains the quasi-conjugated character. The mathematial model of the loaded tooth contact analysis (LTCA) for the helical face gears is established. Simulations for different designs under different working conditions are performed for getting the loaded contact patterns, load distributions and loaded transmission errors. Meshing analysis indicates that the proposed method can effectively avoid the edge contact, optimize the load distribution, decrease the sensitivity to misalignments. The results are illustrated with numerical examples.