High-strength bevel gear tooth profile design method

The invention discloses a high-strength bevel gear tooth profile design method which covers a circular bevel gear and a non-circular bevel gear. According to the invention, a high-strength bevel gearadopts a LogiX tooth profile; a part (tooth crest) above a pitch line (the circular bevel gear is degraded into a pitch circle) is convex, a part (tooth root) below the pitch line is concave, and in the transmission process, a pair of gear teeth can implement convex-concave meshing; each tooth profile is formed by connecting a series of feature points, the curvature centers of the feature points are located on a pitch curve (pitch circle), and when one pair of tooth profiles are meshed at the corresponding feature points, the curvature centers coincide and fall at a pitch point so as to meet the instantaneous pure rolling condition; and compared with an involute tooth profile, the tooth surface contact stress and the slip rate of the LogiX tooth profile are greatly reduced, the friction isreduced, smaller-tooth-nu