一种带锁定功能的无人机侧翼展开驱动机构

By integrating a locking function module and a parallel structure of two torsion springs into the wing deployment drive mechanism of the UAV, the problem of increased aerodynamic drag caused by excessive space occupation of the wing deployment drive mechanism is solved, realizing efficient deployment and locking of the UAV, and improving the lift-to-drag ratio and endurance.

CN121573231BActive Publication Date: 2026-07-17BEIJING LINJIN SPACE AIRCRAFT SYST ENG INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING LINJIN SPACE AIRCRAFT SYST ENG INST
Filing Date
2025-10-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The wing deployment drive mechanism of large-wingspan lifting body UAVs occupies too much space, which increases aerodynamic drag, reduces lift-to-drag ratio, and limits endurance.

Method used

Design a side wing deployment drive mechanism for a UAV with locking function. By integrating a locking function module into the deployment function module, the rotational deployment of the side wing and the position locking after deployment are realized. A double torsion spring parallel structure is adopted to improve the output torque and realize the locking function in a limited space.

Benefits of technology

The deployment and locking of the wing were achieved within a limited space, reducing aerodynamic drag, increasing lift-to-drag ratio, extending flight time, and improving the reliability of the locking function.

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Abstract

本发明公开一种带锁定功能的无人机侧翼展开驱动机构。通过将锁定功能模块设计在展开功能模块的空间包络内,在有限空间内同时实现侧翼的展开和锁定两种功能,避免机构凸出翼面过大对无人机气动外形的破坏,有益于降低无人机飞行过程中的气动阻力、提高飞行器的升阻比、延长飞行时间。两组锁定功能模块中锁定卡块与右合页之间的配合间隙大小不一。大间隙保证卡块能够“锁得进”,小间隙保证卡块能够“锁得紧”。两种间隙相互配合、互为补充,提高机构锁定功能的可靠性。本发明采用双扭簧并联的方式提高展开功能模块的输出扭矩,避免采用大丝径、单扭簧方案造成机构的轴向空间占用过大、飞行阻力增加、飞行器升阻比降低的问题。
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