Characteristic of involute slope modification of asymmetric spur gear
来源期刊：中南大学学报(英文版)2015年第5期
论文作者：DENG Xiao-he HUA Lin HAN Xing-hui
文章页码：1676 - 1684
Key words：asymmetric gears; involute slope modification; synthetic mesh stiffness
Abstract: the meshing characteristic of asymmetric involute spur gear was studied, the equations of the geometric shape of the asymmetric gear for both sides were deduced, and the equations of contact ratio and the key points of contact were also obtained. Meanwhile, an involute slope modification method considering the effects of static transmission errors was proposed based on the meshing properties. The characteristic of the involute slope modification was analyzed by changing different modification parameters. The mesh stiffness and synthetic mesh stiffness of unmodified and modified asymmetric spur gears were investigated. Furthermore, the spectrums of synthetic mesh stiffness under different modification parameters were compared. Research results showed that the modification parameters influence the meshing performance of gear pairs, and the proposed modification method was feasible to improve the transmission performance of gear pairs with appropriate modification parameters.
DENG Xiao-he(邓小禾), HUA Lin(华林), HAN Xing-hui(韩星会)
(School of Automotive Engineering, Hubei Key Laboratory of Advanced Technology of Automotive Parts,
Wuhan University of Technology, Wuhan 430070, China)
Abstract:the meshing characteristic of asymmetric involute spur gear was studied, the equations of the geometric shape of the asymmetric gear for both sides were deduced, and the equations of contact ratio and the key points of contact were also obtained. Meanwhile, an involute slope modification method considering the effects of static transmission errors was proposed based on the meshing properties. The characteristic of the involute slope modification was analyzed by changing different modification parameters. The mesh stiffness and synthetic mesh stiffness of unmodified and modified asymmetric spur gears were investigated. Furthermore, the spectrums of synthetic mesh stiffness under different modification parameters were compared. Research results showed that the modification parameters influence the meshing performance of gear pairs, and the proposed modification method was feasible to improve the transmission performance of gear pairs with appropriate modification parameters.
Key words:asymmetric gears; involute slope modification; synthetic mesh stiffness
