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首页> 外文期刊>Transactions of the Canadian Society for Mechanical Engineering >DEVELOPMENT OF 3-SPEED REAR HUB BICYCLE TRANSMISSIONS WITH GEAR-SHIFTING MECHANISMS
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DEVELOPMENT OF 3-SPEED REAR HUB BICYCLE TRANSMISSIONS WITH GEAR-SHIFTING MECHANISMS

机译：具有变速机构的三速后轮毂自行车变速箱的开发

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摘要

Rear hub bicycle transmissions require less maintenance and are more reliable than rear derailleurs. This study proposes a systematic design process for the conceptual design of 3-speed rear hub bicycle transmissions. By analyzing the kinematics of a basic epicyclic gear mechanism using the fundamental circuit method, the gear sequence and clutching sequence arrangements for 3-speed rear hub transmissions can be obtained. The numbers of gear-teeth for all gear elements resulting in a minimum installation space and satisfying the required speed ratio at each gear stage are determined. A gear-shifting mechanism is constructed to sequentially control the power-flow path within the epicyclic gear mechanism so as to provide three forward gears. An atlas of 3-speed rear hub bicycle transmissions is listed, where three devices are new design concepts and are suitable for further embodiment design. The results of this study will lead to the creation of new multi-speed rear hub bicycle transmissions.
机译：后轮毂自行车变速器所需的维护较少，并且比后拨链器更可靠。这项研究为3速后轮毂自行车变速器的概念设计提出了系统的设计过程。通过使用基本回路方法分析基本周转齿轮机构的运动学特性，可以获得用于三速后轮毂变速器的齿轮序列和离合序列布置。确定所有齿轮元件的齿轮齿数，以确保最小的安装空间并满足每个齿轮级所需的速比。变速机构构造成顺序地控制周转齿轮机构内的动力流路径，以提供三个前进档。列出了三速后轮毂自行车变速箱地图集，其中三个装置是新的设计概念，适用于进一步的实施例设计。这项研究的结果将导致创建新的多速后轮毂自行车变速器。

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