Design Method for a Pair of Oval Bevel Gears
Oval bevel gear is a kind of noncircular bevel gear which can achieve variable transmission between intersecting axes. We design the pitch curve by spherics cosine theorem in spatial polar coordinate because the pitch curve of oval bevel gear is not the planar curve. The bevel gear cutter is introduced, and we get the Three-dimensional model of oval bevel gear through extended development of UG. This method can make the calculation accurately, easily and get a wide variation of transmission ratio.
Jianzhong Wang and Jingang Qi
K. Shi et al., "Design Method for a Pair of Oval Bevel Gears", Advanced Materials Research, Vols. 299-300, pp. 887-890, 2011