Characteristic of involute slope modification of asymmetric spur gear

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.

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“…Wang [13] has studied the effects of profile modification, crown modification and helical angle modification on mesh stiffness respectively. Deng [14] has studied the effect of profile modification on mesh stiffness and transmission performance of asymmetric gears. Hu [15] has studied the influence of profile modification on mesh stiffness and further obtained the dynamic response of the transmission system.…”

Research on Dynamic Load-Sharing Characteristics of Two-Stage Asymmetric Star Gear System

“…In 2008, Karpat et al [17] used the method of dynamic analysis to compare conventional spur gears with symmetric teeth and spur gears with asymmetric teeth about the dynamic factor. In 2012, Ning and Wei [18] used MSC.ADAMS software to analyze the dynamic performance of asymmetric gear system; In 2015, Deng et al [19] researched the mesh stiffness of unmodified and modified asymmetric spur gears; In 2017, Karpat et al [20] developed a new method to calculate the meshing stiffness of asymmetric gears.…”