The invention provides a torque sensor suitable for an electric bicycle, the torque sensor comprises a transmission assembly and a torque sensing assembly, the transmission assembly comprises a BB shaft and a bevel gear shaft sleeve, a clutch and an output shaft which are arranged at one end of the BB shaft and are sequentially sleeved outwards along the outer side of the BB shaft in the circumferential direction, and the clutch is in driving connection with the output shaft; the torque sensing assembly comprises a magnetic ring, a circuit board, a sliding sleeve, a thrust ball bearing, a torque outer sleeve, a torque inner sleeve and a deformation sleeve, the sliding sleeve, the thrust ball bearing, the torque outer sleeve, the torque inner sleeve and the deformation sleeve are arranged at the other end of the BB shaft and sequentially sleeved inwards along the outer side of the BB shaft in the circumferential direction, the circuit board is detachably arranged on the torque outer sleeve, and a Hall element is arranged on the circuit board. The magnetic ring is installed on the bevel gear shaft sleeve, and the deformation sleeve is provided with a strain gauge. The device is compact in structure, simple and reliable in assembly process, mature in processing process, easy to manufacture, low in cost and suitable for mass production.

    本发明提供了一种适用于电动自行车的力矩传感器,包括传动组件以及力矩传感组件,所述传动组件包括BB轴以及布置在所述BB轴一端并沿所述BB轴周向外侧向外依次套装的斜齿轮轴套、离合器、输出轴,所述离合器与输出轴驱动连接;所述力矩传感组件包括磁环、线路板以及布置在所述BB轴另一端且沿所述BB轴周向外侧向内依次套装的滑动套、推力球轴承、力矩外套、力矩内套、变形套,所述线路板可拆卸的布置在所述力矩外套上,所述线路板上设置有霍尔元件,所述磁环安装在斜齿轮轴套上,所述变形套上设置有应变片;本发明结构紧凑,组装工艺简单可靠,加工工艺成熟,易于制作,成本低,适合大批量生产。


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    Title :

    Torque sensor suitable for electric bicycle


    Additional title:

    适用于电动自行车的力矩传感器


    Contributors:
    HUANG HONGYUE (author) / SHU WEIFANG (author) / YU ZHENLING (author)

    Publication date :

    2023-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE



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