Displacement prediction and optimization of a non-circular planetary gear hydraulic motor

The non-circular planetary gear hydraulic motor is a low-speed and high-torque hydraulic motor with excellent performance. It has the characteristics of a wide speed range, low weight and is widely used in various fields. Aiming to solve the problem of there being no intuitive formula for calculatin...

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Autores principales:	Biao Zhang, Shikuan Song, Chenghu Jing, Dong Xiang
Formato:	article
Lenguaje:	EN
Publicado:	SAGE Publishing 2021
Materias:	Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/a7256e84dbe0493b9e274d02556c2ce5
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id	oai:doaj.org-article:a7256e84dbe0493b9e274d02556c2ce5
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spelling	oai:doaj.org-article:a7256e84dbe0493b9e274d02556c2ce52021-12-02T03:33:26ZDisplacement prediction and optimization of a non-circular planetary gear hydraulic motor1687-814010.1177/16878140211062690https://doaj.org/article/a7256e84dbe0493b9e274d02556c2ce52021-11-01T00:00:00Zhttps://doi.org/10.1177/16878140211062690https://doaj.org/toc/1687-8140The non-circular planetary gear hydraulic motor is a low-speed and high-torque hydraulic motor with excellent performance. It has the characteristics of a wide speed range, low weight and is widely used in various fields. Aiming to solve the problem of there being no intuitive formula for calculating the displacement of the non-circular planetary gear hydraulic motor at present, based on the analysis of the effects of structural parameters on the displacement of the motor, this paper proposes a formula for calculating the displacement of a non-circular planetary gear hydraulic motor when the pitch curve of the sun wheel is a high-order ellipse. The formula allows the direct calculation and prediction of the displacement of the motor. To improve the unit volume displacement of the hydraulic motor (which determines the power density of the motor), based on the analysis of the unit volume displacement constraints, an optimization equation is proposed by adding an optimization factor to the original equation of the pitch curve of the sun wheel. It is seen that the addition of the new optimization factor eliminates the self-interlacing of the pitch curve of inner ring gear. This elimination increases the unit volume displacement of the motor.Biao ZhangShikuan SongChenghu JingDong XiangSAGE PublishingarticleMechanical engineering and machineryTJ1-1570ENAdvances in Mechanical Engineering, Vol 13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Mechanical engineering and machinery TJ1-1570
spellingShingle	Mechanical engineering and machinery TJ1-1570 Biao Zhang Shikuan Song Chenghu Jing Dong Xiang Displacement prediction and optimization of a non-circular planetary gear hydraulic motor
description	The non-circular planetary gear hydraulic motor is a low-speed and high-torque hydraulic motor with excellent performance. It has the characteristics of a wide speed range, low weight and is widely used in various fields. Aiming to solve the problem of there being no intuitive formula for calculating the displacement of the non-circular planetary gear hydraulic motor at present, based on the analysis of the effects of structural parameters on the displacement of the motor, this paper proposes a formula for calculating the displacement of a non-circular planetary gear hydraulic motor when the pitch curve of the sun wheel is a high-order ellipse. The formula allows the direct calculation and prediction of the displacement of the motor. To improve the unit volume displacement of the hydraulic motor (which determines the power density of the motor), based on the analysis of the unit volume displacement constraints, an optimization equation is proposed by adding an optimization factor to the original equation of the pitch curve of the sun wheel. It is seen that the addition of the new optimization factor eliminates the self-interlacing of the pitch curve of inner ring gear. This elimination increases the unit volume displacement of the motor.
format	article
author	Biao Zhang Shikuan Song Chenghu Jing Dong Xiang
author_facet	Biao Zhang Shikuan Song Chenghu Jing Dong Xiang
author_sort	Biao Zhang
title	Displacement prediction and optimization of a non-circular planetary gear hydraulic motor
title_short	Displacement prediction and optimization of a non-circular planetary gear hydraulic motor
title_full	Displacement prediction and optimization of a non-circular planetary gear hydraulic motor
title_fullStr	Displacement prediction and optimization of a non-circular planetary gear hydraulic motor
title_full_unstemmed	Displacement prediction and optimization of a non-circular planetary gear hydraulic motor
title_sort	displacement prediction and optimization of a non-circular planetary gear hydraulic motor
publisher	SAGE Publishing
publishDate	2021
url	https://doaj.org/article/a7256e84dbe0493b9e274d02556c2ce5
work_keys_str_mv	AT biaozhang displacementpredictionandoptimizationofanoncircularplanetarygearhydraulicmotor AT shikuansong displacementpredictionandoptimizationofanoncircularplanetarygearhydraulicmotor AT chenghujing displacementpredictionandoptimizationofanoncircularplanetarygearhydraulicmotor AT dongxiang displacementpredictionandoptimizationofanoncircularplanetarygearhydraulicmotor
_version_	1718401750355935232

Displacement prediction and optimization of a non-circular planetary gear hydraulic motor

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