Theoretical and experimental analyses of spiral bevel gears with two contact paths

This paper investigates the geometrical design principal of the spiral bevel gears with two contact paths from spatial conjugate curve theory. Differential geometry and gearing kinematics are introduced to derive this model. In this process, the calculation method of contact paths and tooth surface...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science Journal of mechanical engineering science, 2018-02, Vol.232 (4), p.665-676
Main Authors: Tan, Rulong, Chen, Bingkui, Liang, Dong, Peng, Changyan
Format: Article
Language:English
Subjects:
Accuracy
Bevel gears
Contact stresses
Differential gears
Differential geometry
Kinematics
Repair & maintenance
Spiral bevel gears
Transmission efficiency
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Summary:This paper investigates the geometrical design principal of the spiral bevel gears with two contact paths from spatial conjugate curve theory. Differential geometry and gearing kinematics are introduced to derive this model. In this process, the calculation method of contact paths and tooth surface generating method are presented. According to the arguments in this paper, a process of designing the tooth surface of logarithmic spiral bevel gears with two contact paths is investigated. Then, through this process, the design of a pair of logarithmic spiral bevel gears with two contact paths is completed. Besides, the prototype is manufactured and the performance experiment is completed. Results show the maximum contact stress of spiral bevel gears with two contact paths is reduced compared to those with one contact path. Besides, the transmission efficiency of the spiral bevel gears with two contact paths can reach 98.2%.
ISSN:0954-4062
2041-2983
DOI:10.1177/0954406216686390