On the behaviour of n-planets planetary gear sets influenced by geometrical design factors

IF 4.5 1区工程技术 Q1 ENGINEERING, MECHANICAL

Mechanism and Machine Theory Pub Date : 2024-11-25 DOI:10.1016/j.mechmachtheory.2024.105860

J. Sanchez-Espiga , M. Fuerst , A. Fernandez-del-Rincon , M. Otto , F. Viadero , K. Stahl

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Abstract

This work presents a study focused on the behaviour of low-speed planetary gear sets with 3 to 7 equally spaced planets affected by their inherent geometrical characteristics. On the one hand, this work identifies the conditions that make the transmission act as fixed, even including floatability in the sun gear, due to their inherent geometrical factors in transmissions with an even number of planets. On the other hand, this work extends the criteria employed to classify the kinds of planetary gearboxes according to their geometry, including the order of the sequence in a sequentially phased transmission. A new expression is proposed in order to take this order into account. Then, several different transmissions are modelled covering the possible configurations. To observe the impact that these aspects have in the transmission’s behaviour the load sharing ratio and the orbits described by the sun gear are extracted. These results confirm the importance of the mentioned sequence order in the behaviour of these transmissions.

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关于受几何设计因素影响的 n 行星行星齿轮组的行为

这项研究的重点是 3 至 7 个等间距行星的低速行星齿轮组受其固有几何特性影响的行为。一方面，这项研究确定了在偶数行星齿轮变速器中，由于其固有的几何因素而使变速器表现为固定的条件，甚至包括太阳齿轮的浮动性。另一方面，这项工作扩展了根据几何形状对行星齿轮箱进行分类的标准，包括顺序相位变速器中的序列顺序。为了将这种顺序考虑在内，我们提出了一种新的表达式。然后，对几种不同的传动装置进行建模，以涵盖可能的配置。为了观察这些方面对传动性能的影响，提取了负载分担率和太阳齿轮描述的轨道。这些结果证实了上述序列顺序对这些传动装置性能的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mechanism and Machine Theory 工程技术-工程：机械

CiteScore

9.90

自引率

23.10%

发文量

450

审稿时长

20 days

期刊介绍： Mechanism and Machine Theory provides a medium of communication between engineers and scientists engaged in research and development within the fields of knowledge embraced by IFToMM, the International Federation for the Promotion of Mechanism and Machine Science, therefore affiliated with IFToMM as its official research journal. The main topics are: Design Theory and Methodology; Haptics and Human-Machine-Interfaces; Robotics, Mechatronics and Micro-Machines; Mechanisms, Mechanical Transmissions and Machines; Kinematics, Dynamics, and Control of Mechanical Systems; Applications to Bioengineering and Molecular Chemistry