The invention provides a compliant constant force mechanism. The compliant constant force mechanism comprises a base, a positive stiffness structure and a negative stiffness structure. A partition block is arranged in the middle of the base and divides a cavity of the base into a first frame space and a second frame space. The positive stiffness structure comprises two first mounting frames and two flexible cross beam sets, the two flexible cross beam sets are connected with the two first mounting frames correspondingly, the first mounting frames are connected with the base, and the opposite ends of the two flexible cross beam sets are connected with the two opposite side walls of a guide beam correspondingly; the negative stiffness structure comprises a second mounting frame and two flexible cosine-shaped curved beam sets, the upper end of the second mounting frame is connected with the bottom of the guide beam through one flexible cosine-shaped curved beam set, and the lower end of the second mounting frame is connected with the bottom of the base through the other flexible cosine-shaped curved beam set. According to the compliant constant-force mechanism, multiple sections of constant-force strokes can be provided, constant-force fluctuation is smaller, precision is higher, more application scenes can be met, and the practicability and adaptability of the compliant constant-force mechanism are improved.

    本发明提供了一种柔顺恒力机构,包括基座、正刚度结构和负刚度结构;基座的中部设有隔断块,隔断块将基座的腔体隔断出第一框体空间和第二框体空间;正刚度结构包括两个第一安装架和两组柔性横梁组,两组柔性横梁组分别与两个第一安装架连接,各第一安装架皆与基座连接,且两组柔性横梁组相对的端部分别与一导向梁的相对两侧侧壁连接;负刚度结构包括第二安装架和两组柔性余弦形曲梁组,第二安装架的上端通过一组柔性余弦形曲梁组与导向梁的底部连接,其下端通过另一组柔性余弦形曲梁组与基座的底部连接。通过本申请,能够提供多段恒力行程,使得恒力波动更小以及精度更高,有利于满足更多应用场景,提升了该柔顺恒力机构的实用性和适应性。


    Access

    Download


    Export, share and cite



    Title :

    Flexible constant force mechanism


    Additional title:

    一种柔顺恒力机构


    Contributors:
    ZHAN JINQING (author) / YAN JIAKUN (author) / ZHANG ZHIHUA (author) / LIU MIN (author) / ZHOU CHENGLING (author)

    Publication date :

    2023-11-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



    Constant-force tensioning mechanism for flexible solar wing

    WANG DONGXU / ZHANG SHENGZHI / YE XIAOBIN | European Patent Office | 2023

    Free access

    Spatial compliant constant-force mechanism

    Parlaktaş, Volkan | Online Contents | 2013


    CASTER WHEEL WITH CONSTANT FORCE MECHANISM

    GONCALVES FERNANDO D | European Patent Office | 2021

    Free access

    Caster wheel with constant force mechanism

    GONCALVES FERNANDO D / FINNEGAN PAUL F / SIGMAN GREG et al. | European Patent Office | 2019

    Free access

    Compliant constant-force linear-motion mechanism

    Tolman, Kyler A | Online Contents | 2016