0
TECHNICAL PAPERS

Optimal Tooth Modifications in Hypoid Gears

[+] Author and Article Information
Vilmos Simon

Budapest University of Technology and Economics, Faculty of Mechanical Engineering, Institute of Machine Design, Department of Machine Elements, H-1111 Budapest, Müegyetem rkp. 3, Hungary

J. Mech. Des 127(4), 646-655 (Oct 11, 2004) (10 pages) doi:10.1115/1.1899177 History: Received April 19, 2004; Revised October 11, 2004

A method for the determination of optimal tooth modifications in hypoid gears based on improved load distribution and reduced transmission errors is presented. The modifications are introduced into the pinion tooth surface by using a cutter with bicircular profile and optimal diameter. In the optimization of tool parameters the influence of shaft misalignments of the mating members is included. As the result of these modifications a point contact of the meshed teeth surfaces appears instead of line contact; the hypoid gear pair becomes mismatched. By using the method presented in (Simon, V., 2000, “Load Distribution in Hypoid Gears  ,” ASME J. Mech. Des., 122, pp. 529–535) the influence of tooth modifications introduced on tooth contact and transmission errors is investigated. Based on the results that was obtained the radii and position of circular tool profile arcs and the diameter of the cutter for pinion teeth generation were optimized. By applying the optimal tool parameters, the maximum tooth contact pressure is reduced by 16.22% and the angular position error of the driven gear by 178.72%, in regard to the hypoid gear pair with a pinion manufactured by a cutter of straight-sided profile and of diameter determined by the commonly used methods.

Copyright © 2005 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Relative position of the pinion and the gear in mesh

Grahic Jump Location
Figure 2

Machine tool setting for pinion teeth finishing

Grahic Jump Location
Figure 3

Machine tool setting for gear teeth finishing

Grahic Jump Location
Figure 4

Tool profile for pinion teeth finishing

Grahic Jump Location
Figure 5

Influence of cutter profile radius rprof1 on maximal tooth contact pressure and transmission errors

Grahic Jump Location
Figure 6

Influence of cutter profile radius rprof2 on maximal tooth contact pressure and transmission errors

Grahic Jump Location
Figure 7

Influence of the position of tool profile radii’s connection point on maximal tooth contact pressure and transmission errors

Grahic Jump Location
Figure 8

Influence of cutter radius correction on maximal tooth contact pressure and transmission errors

Grahic Jump Location
Figure 9

Tooth contact pressure distribution for hypoid gear pair with optimal modifications (T=80Nm)

Grahic Jump Location
Figure 10

Tooth contact pressure distribution for not optimally modified hypoid gear pair (T=80Nm)

Grahic Jump Location
Figure 11

Tooth contact pressure distribution for hypoid gear pair with optimal modifications (T=20Nm)

Grahic Jump Location
Figure 12

Tooth contact pressure distribution for customly modified hypoid gear pair (T=20Nm)

Grahic Jump Location
Figure 13

Influence of cutter profile radius rprof2 and angular shaft misalignments in the horizontal plane on maximal tooth contact pressure

Grahic Jump Location
Figure 14

Influence of cutter profile radius rprof2 and angular shaft misalignments in the vertical plane on maximal tooth contact pressure

Grahic Jump Location
Figure 15

Influence of cutter radius correction and angular shaft misalignments in the horizontal plane on maximal tooth contact pressure

Grahic Jump Location
Figure 16

Influence of cutter radius correction and angular shaft misalignments in the vertical plane on maximal tooth contact pressure

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In