Open Access

ARTICLE

Simulation Analysis on Quasistatic Characteristics of Multistage Face Gears with Double Crown Surface

Xingbin Chen¹, Qingchun Hu^1,*, Zhongyang Xu¹, Yao Ding², Qianli Mai¹, Chune Zhu³

1 School of Mechanical and Automotive engineering, South China University of Technology, Guangzhou, 510641, China.
2 eBizprise Technology (TJ) Limited, Tianjin, 300040, China.
3 Institute for Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou , 510006, China.

* Corresponding Author: Qingchun Hu. Email: .

Computer Modeling in Engineering & Sciences 2019, 118(2), 447-470. https://doi.org/10.31614/cmes.2019.04330

Abstract

The multistage face gears are the core component of the planetary gear train, which is symmetrically meshed by multiple single-stage face gear and multiple cylindrical gears. However, it is difficult to synchronize the contact between face gears and cylindrical gear due to the tooth number differences. Thus, the interference problems between two stages and big stress concentration are obvious. The crown surface configuration technology and structure design were introduced to optimize the meshing condition. To improve the double crown design feasibility and meshing stability, it is necessary to establish a reasonable multistage face gears pair simulation model to evaluate various influence factors on the contact condition and quasi-static characteristics of multistage face gears structure. The relevant scatter plots are fitted by comparing the contact results with different crown quantities and friction coefficients to intuitively obtain the variation regularity of maximum deformation, maximum strain, maximum stress and maximum strain energy. The natural frequency and mode coefficient are also determined by modal analysis under these two conditions. All the above mentioned studies verified the contact conjugate properties of double crown surface configuration were suitable. The results can provide a foundation for structure optimization and transmission reliability of multistage face gears.

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Keywords

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