Conceptual Design of a 16-Speed Bicycle Drive Hub
This paper presents a design approach for the conceptual design of a novel 16-speed bicycle drive hub. First, a distributed-flow type planetary gear train, which consists of two parallel- connected transmission units and one differential unit, for the power transmission mechanism of a bicycle drive hub is proposed. Based on the kinematic analysis of the presented gear mechanism, a feasible clutching sequence is synthesized to provide 16 forward speeds. Then, the numbers of teeth of all gears are determined according to the desired velocity ratio of each speed. As a result, a schematic diagram of the embodiment of the proposed 16-speed drive hub is presented.
Y. C. Wu and S. L. Lin, "Conceptual Design of a 16-Speed Bicycle Drive Hub", Applied Mechanics and Materials, Vols. 52-54, pp. 279-284, 2011