The invention discloses an adjustable skid undercarriage for an unmanned helicopter. The adjustable skid undercarriage comprises a high-damping telescopic actuating rod, a bidirectional equal-rigidity tension-compression type buffer, a split bow beam and a variable-length skid; wherein the top ends of the two high-damping telescopic actuating rods in the same group are hinged to the unmanned helicopter body, and the bottom ends of the two high-damping telescopic actuating rods in the same group are hinged to the split bow beams on the two sides respectively. The two ends of the two-way equal-rigidity tension-compression type buffer are hinged between the split type bow beams on the two sides; the two-way equal-rigidity tension-compression type buffer and the two high-damping telescopic actuating rods form a stable triangular mechanism; the split type bow beams are hinged to the unmanned helicopter body around the longitudinal axis of the unmanned helicopter, and the split type arch beam and the variable-length skid are connected through a connecting spherical hinge. The arched beam can be rotationally folded and unfolded along the longitudinal horizontal line of the helicopter, passive absorption impact kinetic energy of the undercarriage is reduced, the landing angle of the undercarriage is freely adjusted, so that the adaptability of the undercarriage and task equipment such as a photoelectric pod is improved.
本发明公开一种无人直升机用可调节式滑橇起落架,包括高阻尼伸缩作动杆、双向等刚度拉压式缓冲器、分体式弓形梁和可变长度滑橇;位于同组中的两个高阻尼伸缩作动杆的顶端均与无人直升机机体铰接,底端分别与两侧的分体式弓形梁铰接;双向等刚度拉压式缓冲器的两端铰接在两侧的分体式弓形梁之间,双向等刚度拉压式缓冲器和两个高阻尼伸缩作动杆组成稳定三角机构,分体式弓形梁与无人直升机机体绕无人直升机纵向轴线铰接,分体式弓形梁和可变长度滑橇之间通过连接球铰连接。可以使弓形梁沿直升机纵向水平线转动收放、减小起落架被动吸收冲击动能和自由调节起落架降落角度的作动机构,提高了起落架与光电吊舱等任务设备的适配性。
Adjustable skid undercarriage for unmanned helicopter
一种无人直升机用可调节式滑橇起落架
2021-09-14
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
Helicopter skid type undercarriage opening degree measuring device
European Patent Office | 2023
|Undercarriage facilitating stable landing of unmanned helicopter
European Patent Office | 2022
|