The chain wheel speed change device comprises a middle shaft, a speed change output mechanism and a speed selection mechanism, the speed change output mechanism and the speed selection mechanism are coaxial with the middle shaft, the speed change output mechanism comprises a left side planet carrier, a right side planet carrier, a planet wheel shaft, a planet wheel, a gear ring and a sun wheel, and the planet wheel is in sliding connection with the planet wheel shaft and meshed with the gear ring. The planet gear is meshed with the sun gear, the sun gear is supported on the middle shaft through a bearing, an outer ring of the sun gear is supported on the right planet carrier through a bearing, the right planet carrier is provided with right planet carrier ratchets, the sun gear is provided with sun gear ratchets, and a planetary gear train speed increasing output mechanism with sun gear high-speed output and planet carrier direct output is formed. And the variable-speed output mechanism is connected with the speed selection mechanism. The chain wheel speed change device of the middle motor has the beneficial effects that the chain wheel speed change device of the middle motor is further improved on the basis of an original design structure, the overall size of the middle motor can be reduced, and a wider speed change range and more comfortable riding experience can be provided for a rider.

    本发明涉及一种中置电机的牙盘变速装置及其中置电机,包括中轴、及与中轴共轴的变速输出机构和速度选择机构,变速输出机构包括左、右侧行星架、行星轮轴、行星轮、齿圈和太阳轮,行星轮与行星轮轴滑动连接,行星轮与齿圈啮合,行星轮与太阳轮啮合,太阳轮通过轴承支撑在中轴上,太阳轮外圈通过轴承支撑在右侧行星架上,右侧行星架设有右侧行星架棘齿,太阳轮上设有太阳轮棘齿,构成太阳轮高速输出和行星架直接输出的行星轮系增速输出机构,变速输出机构与速度选择机构连接。有益效果:本发明的中置电机的牙盘变速装置是在原设计结构的基础上进一步改进,既可以缩小中置电机的整体尺寸,又能够给骑行者提供更宽的变速范围及更加舒适的骑行体验。


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    Titel :

    Crankset speed change device of built-in motor and built-in motor thereof


    Weitere Titelangaben:

    中置电机的牙盘变速装置及其中置电机


    Beteiligte:
    YAN ZHENHUA (Autor:in)

    Erscheinungsdatum :

    2023-01-17


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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