Characteristic of involute slope modification of asymmetric spur gear  

作　　者：邓小禾 华林 韩星会 

机构地区：[1]School of Automotive Engineering, Hubei Key Laboratory of Advanced Technology of Automotive Parts,Wuhan University of Technology

出　　处：《Journal of Central South University》2015年第5期1676-1684,共9页中南大学学报（英文版）

基　　金：Project(51105287)supported by the National Natural Science Foundation of China;Project(2012BAA08003)supported by the Key Research and Development Project of New Product and New Technology of Hubei Province,China;Project(IRT13087)supported by the Progress for Innovative Research Team in University of Ministry of Education of China

摘　　要：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.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.

关 键 词：asymmetric gears involute slope modification synthetic mesh stiffness 

分 类 号：TH132.41[机械工程—机械制造及自动化] TH325.022