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The design methodology and characteristics analysis of a uniform-variable non-circular gear drive

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Abstract

In order to meet the requirements of the ideal kinematics characteristics of the driven gear, a new kind of uniform-variable non-circular gear is proposed. According to the ideal speed curve and acceleration curve, the concept of the uniform-variable non-circular gear is analyzed. The pitch curve equations are derived and the formulas for calculating the gear’s section length and center distance are established. A design procedure is developed and a simplified derivation of the mathematical model is presented. A few characteristics, such as pressure angles, the undercut and the contact ratio, of this new drive are analyzed. The results confirm that the proposed design method is more flexible to control the shape of the pitch curves by changing the parameters of the given speed curve and acceleration curve.

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Acknowledgements

The work was supported by the National Natural Science Foundation of China under No. 51205335 and No. 51375411, the Scientific Research for the High Level Talent of Nanjing Institute of Technology under No. YKJ201702. These financial supports are gratefully acknowledged. The authors also sincerely appreciate the comments and modification suggestions made by the editors and anonymous referees.

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Authors and Affiliations

  1. School of Mechanical Engineering, Nanjing Institute of Technology, No. 1, Hongjing Avenue, Jiangning Science Park, Nanjing, 211167, Jiangsu Province, People’s Republic of China

    Jian Wang & Yong Feng

  2. School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen, 361024, People’s Republic of China

    Jianming Fan

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  1. Jian Wang
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  2. Jianming Fan
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  3. Yong Feng
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Correspondence to Jian Wang.

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Wang, J., Fan, J. & Feng, Y. The design methodology and characteristics analysis of a uniform-variable non-circular gear drive. Int J Interact Des Manuf 13, 821–830 (2019). https://doi.org/10.1007/s12008-019-00535-0

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  • DOI: https://doi.org/10.1007/s12008-019-00535-0

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