The invention discloses a bilateral linear torque center shaft sensor for an electric power-assisted bicycle. The bilateral linear torque center shaft sensor comprises a center shaft, wherein a left supporting bowl set is sleeved at the left end of the center shaft, an induction shaft sleeve with a magnetic field is sleeved on the center shaft, and a left end of the induction shaft sleeve is connected with center shaft torque transmission through a spline; shaft sleeve spline teeth used for being connected with a chain wheel to achieve torque transmission output are formed at the right end of the induction shaft sleeve, and a right supporting bowl set and a chain wheel lock nut are arranged at the right end of the induction shaft sleeve; a middle pipe matched with the induction shaft sleeve in a non-contact sleeving mode is arranged between the left supporting bowl set and the right supporting bowl set, a PCB is installed in the middle pipe, the PCB is connected with an induction coil used for measuring the magnetic flux change generated by the magnetoelastic principle when the induction shaft sleeve is stressed and deformed, and a magnetic ring is arranged on the middle shaft and located between the left supporting bowl set and the induction shaft sleeve. The sensor is compact in structure and reasonable in design, and can continuously and accurately measure the stress change of the middle shaft.

    本发明公开了电动助力自行车用双边线性扭矩中轴传感器,包括左端套装有左支撑碗组的中轴,中轴上套装有带有磁场的感应轴套,感应轴套的左端通过花键与中轴扭力传递相连接,感应轴套的右端成型有用于连接牙盘实现扭力传递输出的轴套花键齿,并且该感应轴套的右端设有右支撑碗组和牙盘锁母;左支撑碗组和右支撑碗组间设有与感应轴套非接触套装配合的中管,该中管中安装有PCB电板,PCB电板连接有用于测量感应轴套受力变形时由磁弹性原理产生的磁通量变化的感应线圈,中轴上位于左支撑碗组和感应轴套之间设置有磁环。本发明结构紧凑、设计合理,并能够连续准确地测量出中轴受力的变化。


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    Titel :

    Bilateral linear torque center shaft sensor for electric power-assisted bicycle


    Weitere Titelangaben:

    电动助力自行车用双边线性扭矩中轴传感器


    Beteiligte:
    XU LIYONG (Autor:in) / WU SHENG (Autor:in)

    Erscheinungsdatum :

    2021-04-13


    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 / 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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