The invention relates to the technical field of linear motion mechanisms, in particular to a spacecraft on-orbit maintenance mechanism which comprises a supporting assembly, a linear motion guide rail assembly, a connecting assembly and a locking assembly, the supporting assembly comprises a supporting gasket and a base, and a first mounting groove is formed in the base; the linear motion guide rail assembly is slidably mounted in the first mounting groove and can release the degree of freedom along the Z axis; the connecting assembly is used for connecting a maintained part; the locking assembly is used for detachably connecting the connecting assembly to the linear motion guide rail assembly. Therefore, Z-axis two-way degree-of-freedom release and high bearing in other directions can be achieved, Z-axis one-way degree-of-freedom release is achieved in cooperation with the check block, Z-axis direction bearing is achieved in cooperation with the flexible joint, the functions of supporting, bearing, thermal deformation release and the like are provided for a maintained part, on-orbit maintenance of the maintained part is facilitated, and the maintenance efficiency is improved. Therefore, the integrated breakthrough design is achieved, and the three functions of launching bearing, kinematics installation and on-orbit maintenance upgrading are achieved through one mechanism.

    本发明涉及直线运动机构技术领域,具体涉及一种航天器在轨维护机构,包括支撑组件、直线运动导轨组件、连接组件和锁紧组件,支撑组件包括支撑垫片和基座,基座上开设有第一安装槽;直线运动导轨组件可滑动地安装于第一安装槽,并且能够沿Z轴释放自由度;连接组件用于连接被维护件;锁紧组件用于将所述连接组件可拆卸地连接于所述直线运动导轨组件。由此,能够实现Z轴双向自由度释放、其他方向高承载,并配合挡块实现Z轴单向自由度释放、配合柔节实现Z轴方向承载,为被维护件提供支撑、承载、热变形释放等功能,便于被维护件的在轨维护,从而达到一体化突破设计:一套机构实现发射承载、运动学安装、在轨维护升级三种功能。


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    Title :

    On-orbit maintenance mechanism for spacecraft


    Additional title:

    一种航天器在轨维护机构


    Contributors:
    JIANG PING (author) / XUE CHUANG (author) / DONG JIHONG (author)

    Publication date :

    2024-02-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS




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