A numerical method for the contact analysis of uniform tooth height epicyclical spiral bevel gears stemming from the Klingelnberg’s Cyclo-Palloid System is proposed. The analysis is based on simultaneous generations of gear surfaces and contact simulation. A theoretical contact identification program has been developed. Conjugated tooth contact is examined. Longitudinal settings of contact patterns or contact across the surfaces from tooth root to tooth top were obtained as a function of machine-settings. The influences of each cutting parameter were isolated and were discussed.

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Une méthode numérique aété développée pour la simulation de la génération des dentures et du contact des engrenages spiro-coniques Klingelnberg. Les surfaces de denture sont corrigées suivant deux directions principales de la denture, soit en longueur, soit en hauteur. Les effets des désalignements axiaux sur les caractéristiques du contact issus de l'imprécision inévitable des pièces lors du montage dans les boîtes de transmission, sont déterminés. Mots clés :Engrenage spiro-conique Klingelnberg / déterminations du contact entre dent / effet des modifications de profil et des mésalignements Abstract -A method was developed for numerical simulation of generation and meshing of Klingelnberg bevel gears. Tooth surfaces were modified from theoretical shapes along both the width and height of teeth. Effects of axis misalignments due to assembly are also considered in order to defined tooth contact evolutions.

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