The invention is suitable for the technical field of spaceflight, and provides a top vibration absorption space coiling type extension arm using a gapless hinge, which comprises a top platform and a base, the coiled extension arm is mounted between the top platform and the base; wherein the top platform comprises an acceleration sensor and an electromagnetic active dynamic vibration absorber, generates movement relative to the base, and is used for applying bending and twisting moment and compensating dynamic deformation movement of the coiled extension arm; the coiled extension arm includes a non-contact gap hinge for eliminating a hinge gap. Active vibration suppression can be applied, hinge gaps are eliminated, compared with an existing space coiling type stretching structure, the dynamic stability and the overall rigidity of the stretched stretching arm are greatly improved, the dynamic pointing precision of loads is effectively improved, implementation is easy, the reliability of the mechanism and components of the mechanism is high, the mechanism can be matched with a large number of control algorithms, and the application range is wide. And by combining the application of various hardware, the manufacturing cost is low, the engineering feasibility is high, and the application prospect is better.
本发明适用于航天技术领域,提供了一种顶部吸振并使用无间隙铰链的空间盘绕式伸展臂,包括:顶部平台和基座;盘绕式伸展臂,安装在顶部平台和基座之间;其中,所述顶部平台包括加速度传感器和电磁式主动动力吸振器,产生相对于基座的运动,用于施加弯曲和扭转力矩,补偿盘绕式伸展臂的动态变形运动;所述盘绕式伸展臂包括无接触间隙铰链,用于消除铰链间隙。本发明可施加主动振动抑制,并消除铰链间隙,相比于现有的空间盘绕式伸展结构,极大地提高了展开后伸展臂的动态稳定性和整体刚度,有效提高了载荷的动态指向精度,易于实现,机构及其部件可靠性高,可以适配大量控制算法,结合各类硬件的应用,制造成本低,工程可行性高,具有较好的应用前景。
Space coiling type extension arm with top vibration absorption and gapless hinge
一种顶部吸振并使用无间隙铰链的空间盘绕式伸展臂
2024-06-11
Patent
Electronic Resource
Chinese
Space coiling type extension arm with decoupling control of degree of freedom
European Patent Office | 2022
|Spatial coiling type extension arm system unfolded by passive inhaul cable
European Patent Office | 2023
|Space coiling type stretching arm with active pose adjusting capability
European Patent Office | 2024
|Space coiling type stretching arm capable of achieving two-dimensional unfolding
European Patent Office | 2024
|