The double-cylinder type unmanned aerial vehicle undercarriage buffer is characterized in that the double-cylinder type unmanned aerial vehicle undercarriage buffer comprises an inner cylinder and an outer cylinder which are spaced in the radial direction, a side cavity is formed between the outer cylinder and the inner cylinder, and a piston which reciprocates in the axial direction of the inner cylinder and divides the inner cylinder into an upper cavity and a lower cavity is arranged in the inner cylinder; the inner cylinder is communicated with the side cavity through a bottom valve and a holding mechanism which are arranged at the end of the inner cylinder, a pressure storage mechanism which is coaxial with the bottom valve and the holding mechanism is further arranged on the side of the holding mechanism, and the pressure storage mechanism is provided with a pressure storage cavity which is used for storing or releasing damping oil and expands or shrinks along with movement of the piston. On one hand, the throttling hole is formed in the inner cylinder wall and matched with the guide mechanism and the bottom valve to construct an oil return way, on the other hand, the floating piston, the bottom valve and the guide mechanism are coaxially arranged, so that the buffer is compact in structure, and the purpose of improving the durability of the buffer is achieved.
本发明公开了一种双筒式无人机起落架缓冲器,其特征在于,包括在径向上间隔分离的内筒和外筒,在所述外筒与所述内筒间设置有侧腔室,在所述内筒内设置有沿其轴向往复移动并将所述内筒分割为上腔室和下腔室的活塞,所述内筒通过端部设置的底阀和保持机构与所述侧腔室连通,在所述保持机构的侧部还设置有与所述底阀及保持机构同轴布置的蓄压机构,所述蓄压机构具有用于蓄积或释放减振油而随所述活塞运动扩张或缩小的蓄压腔。一方面将节流孔设置于内筒壁上配合导向机构和底阀构筑回油路,另一方面将浮动活塞、底阀、导向机构同轴布置使缓冲器结构紧凑,达到提升缓冲器耐用性的目的。
Double-cylinder type unmanned aerial vehicle undercarriage buffer
一种双筒式无人机起落架缓冲器
2024-03-12
Patent
Electronic Resource
Chinese
Unmanned aerial vehicle undercarriage with buffer mechanism
European Patent Office | 2024
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