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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Main Authors: Mu Man, Tao Menglun, Liu Bin, Chen Dingfang, Wu Junfeng, Zhang Huiming, Hu Qunfei
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2023-01-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.03.009
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author Mu Man
Tao Menglun
Liu Bin
Chen Dingfang
Wu Junfeng
Zhang Huiming
Hu Qunfei
author_facet Mu Man
Tao Menglun
Liu Bin
Chen Dingfang
Wu Junfeng
Zhang Huiming
Hu Qunfei
author_sort Mu Man
collection DOAJ
description 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 results show that the maximum equivalent stress of the flexspline is lower than that of the standard ellipse cam wave generator, under the action of combined curve cam wave generator, the stress at the front and back ends of the tooth ring in the meshing area of the flexspline is obviously reduced, the stress distribution is more uniform, and the fatigue life is also improved.
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spelling doaj.art-8e69057d893544969b92ffa8f55850942023-05-26T09:57:53ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392023-01-0147657035809981Design and Analysis of Harmonic Reducer Combined Curve Cam Wave GeneratorsMu ManTao MenglunLiu BinChen DingfangWu JunfengZhang HuimingHu QunfeiThe 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 results show that the maximum equivalent stress of the flexspline is lower than that of the standard ellipse cam wave generator, under the action of combined curve cam wave generator, the stress at the front and back ends of the tooth ring in the meshing area of the flexspline is obviously reduced, the stress distribution is more uniform, and the fatigue life is also improved.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.03.009Combined curve cam wave generator;Conic curve;Orthogonal test;Flexspline stress;Fatigue life
spellingShingle Mu Man
Tao Menglun
Liu Bin
Chen Dingfang
Wu Junfeng
Zhang Huiming
Hu Qunfei
Design and Analysis of Harmonic Reducer Combined Curve Cam Wave Generators
Jixie chuandong
Combined curve cam wave generator;Conic curve;Orthogonal test;Flexspline stress;Fatigue life
title Design and Analysis of Harmonic Reducer Combined Curve Cam Wave Generators
title_full Design and Analysis of Harmonic Reducer Combined Curve Cam Wave Generators
title_fullStr Design and Analysis of Harmonic Reducer Combined Curve Cam Wave Generators
title_full_unstemmed Design and Analysis of Harmonic Reducer Combined Curve Cam Wave Generators
title_short Design and Analysis of Harmonic Reducer Combined Curve Cam Wave Generators
title_sort design and analysis of harmonic reducer combined curve cam wave generators
topic Combined curve cam wave generator;Conic curve;Orthogonal test;Flexspline stress;Fatigue life
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.03.009
work_keys_str_mv AT muman designandanalysisofharmonicreducercombinedcurvecamwavegenerators
AT taomenglun designandanalysisofharmonicreducercombinedcurvecamwavegenerators
AT liubin designandanalysisofharmonicreducercombinedcurvecamwavegenerators
AT chendingfang designandanalysisofharmonicreducercombinedcurvecamwavegenerators
AT wujunfeng designandanalysisofharmonicreducercombinedcurvecamwavegenerators
AT zhanghuiming designandanalysisofharmonicreducercombinedcurvecamwavegenerators
AT huqunfei designandanalysisofharmonicreducercombinedcurvecamwavegenerators