The invention relates to the technical field of transmissions, and provides a gear shifting mechanism and a middle transmission. The gear shifting mechanism is used for controlling locking and separation of the shaft and one or more gears installed on the shaft. The gear shifting mechanism comprises a sleeve, a pawl and an elastic piece. The pawl and the elastic piece are installed in the shaft and located on the outer side of the sleeve. A gear shifting groove is formed in the sleeve, and the sleeve is used for rotating under the driving of external force; the elastic piece is used for abutting against one end of the pawl to enter the gear shifting groove when the sleeve rotates till one end of the pawl is located above the gear shifting groove, so that the other end of the pawl is tilted to lock the shaft and the gear, and the sleeve is used for being tangent to the pawl to jack up one end of the pawl when one end of the pawl is away from the gear shifting groove, so that the other end of the pawl is reset. The gear and the shaft are separated. Due to the fact that the force applied to the pawl is larger when the sleeve rotates, gear shifting can be achieved under the pawl load state.

    本发明涉及变速器技术领域,提供一种换挡机构及中置变速器。换挡机构用于控制轴与安装在轴上的一个或多个齿轮的锁定和分离;换挡机构包括:套筒、棘爪以及弹性件;套筒位于轴内,棘爪和弹性件安装在轴内且位于套筒外侧;套筒上开设有换挡槽,且套筒用于在外力的驱动下转动;弹性件用于在套筒转动至棘爪的一端位于换挡槽的上方时抵压棘爪的一端进入换挡槽,使棘爪的另一端翘起,以锁定轴和所述齿轮,套筒用于在棘爪的一端远离换挡槽时与棘爪相切以顶起棘爪的一端,使棘爪的另一端复位,以分离齿轮和轴。由于套筒转动时对棘爪施加的力度更大,因此,可以实现在棘爪负载状态下换挡。


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    Title :

    Gear shifting mechanism and middle transmission


    Additional title:

    一种换挡机构及中置变速器


    Contributors:
    LI JICHU (author) / LIN JIEHUANG (author)

    Publication date :

    2024-11-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F16H Getriebe , GEARING



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