Design and Analysis of Harmonic Reducer Combined Curve Cam Wave Generators

The shape of wave generator directly affects the mechanical characteristics of the flexspline. Flexspline is the weakest part of harmonic drivers. In order to improve its life, the design of a cam wave generator based on a conical curve combination is introduced. The combined curve cam is composed o...

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Bibliographic Details
Published inJixie Chuandong Vol. 47; pp. 65 - 70
Main Authors Mu Man, Tao Menglun, Liu Bin, Chen Dingfang, Wu Junfeng, Zhang Huiming, Hu Qunfei
Format Journal Article
LanguageChinese
Published Editorial Office of Journal of Mechanical Transmission 01.03.2023
Subjects
Combined curve cam wave generator;Conic curve;Orthogonal test;Flexspline stress;Fatigue life
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Summary:The shape of wave generator directly affects the mechanical characteristics of the flexspline. Flexspline is the weakest part of harmonic drivers. In order to improve its life, the design of a cam wave generator based on a conical curve combination is introduced. The combined curve cam is composed of a parabola, a connecting arc and an eccentric arc; the smooth transition between the parabola, the connecting arc and the eccentric arc is taken as the constraint conditions. The influence degree of each parameter on the maximum equivalent stress of the flexspline is calculated and analyzed by orthogonal experiment, and the curve parameters of each section of the combined curve cam wave generator are determined. The transient dynamic analysis of the flexspline under the action of standard elliptic cam and combined curve cam is carried out using the finite element software, and the fatigue life of the flexspline is studied using the transient dynamic analysis results based on the nCode-Designlife software. The res
ISSN:1004-2539