Study on the roller enveloping end face internal engagement worm gear

  • L. Zheng
  • X. DengEmail author
  • J. Wang
  • G. Yin
Technical Paper


A novel worm gear, named roller enveloping end face internal engagement worm gear, with multiple worm-wheel meshing is proposed to provide multiple outputs with high transmission efficiency and good lubrication for furthering industrial advances. As such, an original worm transmission device with roller enveloping internal end-face meshing was proposed based on the innovation in worm structure and gear meshing theory, which can bear 1–4 working load(s) on a single worm. This paper presents mathematical models of meshing characteristics for roller enveloping end face internal engagement worm gear, including both the contact curve and the tooth profile function based on the gearing meshing theory. In doing so, the tooth profile was calculated by MATLAB and the 3D solid model of worm were produced by Creo to measure the meshing properties of roller enveloping end face internal engagement worm gear. The kinematic simulation was also conducted to analyze meshing position and the corresponding meshing teeth. Our study shows that the overall performance of the original worm transmission device with roller enveloping end face internal meshing is good without any interference, and the output curve is basically consistent with the engaging performance. This study is expected to provide a new multiple outputs worm drive for industry, and the results are beneficial for designers to choose the best parameters.


Roller enveloping End face internal meshing worm Modeling and analyzing 



Supported by National Natural Science Foundation of China (Grant No.51305356), Spring Sunshine Plan of Ministry of Education of China(Grant No.14202505 and51575456), and Talent Introduction of Xihua University, China (Grant No. Z1220217).


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Copyright information

© The Brazilian Society of Mechanical Sciences and Engineering 2017

Authors and Affiliations

  1. 1.School of Manufacturing Science and EngineeringSichuan UniversityChengduChina
  2. 2.School of Mechanical EngineeringXihua UniversityChengduChina

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