Tooth surface modification of double-helical gears for compensation of shaft deflections
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Published:2021-08-30
Issue:2
Volume:12
Page:819-835
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ISSN:2191-916X
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Container-title:Mechanical Sciences
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language:en
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Short-container-title:Mech. Sci.
Author:
Liu Lan,Ma Qiangyi,Gong Jingyi,Liu Geng,Cao Xiaomei
Abstract
Abstract. Based on gear meshing theory, the tooth surface equation with
tooth profile modification parameters is deduced, the tooth surfaces of
unmodified and modified gears are constructed, the three-dimensional model
of unmodified and modified double helical gear-shaft-bearing system is
established and then the three-dimensional contact finite element model of
double helical gear-shaft-bearing system is established and the load-bearing contact analysis of the tooth surface is carried out. The actual contact state of the tooth surfaces of double helical gears under different shaft stiffness and power transmission paths is investigated, and the influence of tooth modification parameters on the load distribution of the tooth surfaces of double helical gear pairs is studied. The results show that the tooth surface bearing the contact of the herringbone gear system has the phenomenon of partial load due to the supporting deformation, and the unmodified herringbone gear has obvious contact stress concentration. However, the phenomenon of partial load and stress concentration can be effectively improved by gear tooth modification.
Funder
Key Technologies Research and Development Program Key Programme
Publisher
Copernicus GmbH
Subject
Industrial and Manufacturing Engineering,Fluid Flow and Transfer Processes,Mechanical Engineering,Mechanics of Materials,Civil and Structural Engineering,Control and Systems Engineering
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