Optimum design and research on the involute gear tooth profile

Traditional involute gears transmission problems are discussed in this paper, optimum design of the tooth profile is elicited, and then the involute-circular arc gear is introduced. The parametric model of the involute-circular arc gear is built based on the UG/NX. Bending stresses of involute-circular arc gears and traditional involute spur gears are theoretically analyzed, and explain why the bending fatigue life of involute-circular arc gear is improved. Assembly models of involute spur gears and involute-circular arc gears are built in UG/NX, then which are imported to the ADAMS to carry out the kinematics simulation, subsequently correlative graphs are extracted to analyze and verify that the transmission performance of involute-circular arc gears is better than traditional involute spur gears´, and theoretical guidance for optimum design and practical manufacture of involute-circular arc gears is provided.