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The folding-wing aircraft can obtain appropriate lift and drag by changing the folding angle of the wing. At different stages of the aircraft executing tasks, there can be a corresponding flight state. When the carrier -based aircraft is parked, the occupation space can be reduced by folding by the wing, which can increase the number of carrier -based aircraft. The folding wing drive mechanism is a key technology for folding the wing, which has a key impact on the characteristics of structural transmission. The driving force of the traditional folding wing mechanism is positively related to the size of the drive. Therefore, in the traditional folding wing drive mechanism, if the driving force required when the wing is folded is large, it must use a large size actuators, but this is often limited by the space at the wing shaft. To solve this problem, a folding wing auxiliary drive mechanism is designed in this article. This mechanism uses spring deformation to store the gravity of the wing unfolding process as elastic potential energy and release it when the wing is folded. The use of this mechanism not only increases the driving capacity of the folding wing drive mechanism, but also reduces the power requirement of the main drive. In order to convert the rotation movement when folding the wing into a linear motion, a rotary-to-linear device is designed in this article. In order to eliminate the restrictions on the working load and displacement itinerary in the spring design, this article designed a new type of energy storage spring device: a solid-liquid hybrid spring device, and two spring design schemes are given. Based on the demand of force and displacement strokes, this article gives a detailed design of the auxiliary drive mechanism, and a detailed description of the structural layout and specific operation method is given. On this basis, a key parameter of the auxiliary drive mechanism is given. Finally, the renderings of the auxiliary drive when the wing folding and unfolding are shown.
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