Parametric study of meshing characteristics with respect to different meshing rollers of the antibacklash double-roller enveloping worm gear

Xingqiao Deng, Jinge Wang, M. F. Horstemeyer, Kiran Solanki, Junfu Zhang

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

Roller shapes play a very critical role in the performance of antibacklash double-roller enveloping hourglass worm (ADEHW) gears; however, their influence is seldom reported in the literature. Based on the theories of differential geometry and gear meshing, this paper presents generic models of meshing characteristics for ADEHW gears, including both the contact curve and the tooth profile. We present different meshing functions and their derivatives with respect to each drive type and their associated roller shapes. We also compare the effects of contact curve, tooth profile, tooth undercutting, lubrication angle, induced normal curvature, and autorotation angle in order to design the most optimal tooth profile for the ADEHW gear. Finite element analysis was also conducted in order to minimize the contact stresses as a function of the roller type. Our results show that a spherical roller has the smallest value among the three available meshing roller shapes but is the most difficult design to procure. A cylindrical roller, however, incurs the greatest contact stress.

Original languageEnglish (US)
Article number081004
JournalJournal of Mechanical Design, Transactions of the ASME
Volume134
Issue number8
DOIs
StatePublished - Aug 9 2012

Keywords

  • manufacturing
  • meshing characteristics
  • roller shape
  • tooth profile
  • worm gear

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

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