Abstract: The structural model is established in this paper, and a curve equation used for modifying conjugate profiles is given. On the basis of analyzing the five kinds of modification features, this paper presents the methods of Tip and Root Modification and Rotating Angle-Equidistance Modification, which aim is to raise bearing capacity and mesh efficiency. This paper also presents two kinds of indirect profile modification methods, which are simple in technology. All these results make the modification theory and methods of the conjugate profiles perfect.

Key words: 齿廓, 活齿传动