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Investigation on the semi-conjugate tooth model and disc milling process of logarithmic spiral bevel gears of pure-rolling contact

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Abstract

Conventional logarithmic spiral bevel gears (LSBGs) introduce full-conjugate surfaces (line contact) to generate teeth of the pinion and the gear. However, in general, these full-conjugate surfaces are constructed by spherical involute curves and it is difficult to manufacture these surfaces. Therefore, this article tries to use semi-conjugate surfaces (point contact) as the tooth profiles to make they can be manufactured by the disc milling process and of pure-rolling contact. The design method, manufacture kinematics and stress distribution situations of the LSBGs with semi-conjugate surfaces are investigated. Conjugate surface theory and spatial conjugate curve meshing theory are both introduced to complete the analytical arguments. Finite element analysis (FEA) is introduced to evaluate the contact mechanical characteristics of the LSBGs under loads. From the analytical and simulated results, it is concluded that, through the disc milling process, the LSBGs of continuous pure-rolling contact can be manufactured and mesh correctly. Besides, the manufactured LSBGs maintain pure-rolling contact approximately when they are under loads.

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Author information

Authors and Affiliations

  1. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, China

    Rulong Tan, Changyan Peng & Bingkui Chen

  2. College of Electrical Engineering, Chongqing University, Chongqing, China

    Rulong Tan

Authors
  1. Rulong Tan
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  2. Changyan Peng
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  3. Bingkui Chen
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Corresponding author

Correspondence to Bingkui Chen.

Additional information

Recommended by Associate Editor Yongho Jeon

Rulong Tan received his doctor's degree in engineering from the State Key Laboratory of Mechanical Transmission, Chongqing University, China. Now, he is a postdoctoral fellow in Chongqing University. His research interests include bevel gear geometry, kinematics, and manufacturing.

Bingkui Chen is currently a Professor and Director for the State Key Lab of Mechanical Transmissions at Chongqing University, China. He is also Vice Director of the CMES Gear Technical Committee and a member of the CMES Gear Manufacturing Committee. Prof. Chen has conducted pioneering research related to gear geometry, kinematics, dynamics and manufacturing.

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Tan, R., Peng, C. & Chen, B. Investigation on the semi-conjugate tooth model and disc milling process of logarithmic spiral bevel gears of pure-rolling contact. J Mech Sci Technol 32, 4829–4838 (2018). https://doi.org/10.1007/s12206-018-0930-1

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  • DOI: https://doi.org/10.1007/s12206-018-0930-1

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