The invention discloses an unmanned helicopter vibration isolation device which comprises supporting rods, a speed reducer hinge, a rack hinge and an elastic piece, the elastic piece is arranged between a helicopter body and a main speed reducer, one supporting rod, one speed reducer hinge and one rack hinge form a vibration isolation set, and the unmanned helicopter vibration isolation device comprises four vibration isolation sets. Two parallel vibration isolation sets form a pair and are divided into two pairs which are distributed on the two sides of a machine body in a mirror image mode, a main speed reducer is connected with the machine body through supporting rods, straight lines formed by connecting the two ends of the supporting rods distributed in the mirror image mode intersect at an intersection point, two intersection points formed by the four vibration isolation sets form an axis, and the main speed reducer can swing around the axis. The axial rigidity of the supporting rod is high, so that the linear displacement between the main speed reducer and the helicopter body is small, the swing frequency is low, the vibration level of the unmanned helicopter is reduced, the elastic piece is arranged between the main speed reducer and the helicopter body, vibration loads generated by the main speed reducer and the helicopter body can be isolated, and the stability of the unmanned helicopter is improved.
本发明公开了一种无人直升机隔振装置,包括撑杆、减速器铰链、机架铰链和弹性件,弹性件布置于机体和主减速器之间,一个撑杆、一个减速器铰链和一个机架铰链组成一个隔振组,无人直升机隔振装置包括四个隔振组,以两个平行布置的隔振组为一对,分为两对镜像分布于机体两侧,撑杆将主减速器与机体相连接,镜像分布的撑杆的两端所连成的直线相交于一个相交点,四个隔振组形成的两个相交点形成一条轴线,主减速器能够绕此轴线摆动,撑杆的轴向刚度很高,所以主减速器与机体之间的线位移很小,摆动频率较低,降低了无人直升机的振动水平,主减速器与机体之间布置有弹性件,能够隔离主减速器与机体产生的振动载荷,提高无人直升机稳定性。
Unmanned helicopter vibration isolation device and unmanned helicopter
一种无人直升机隔振装置及无人直升机
2023-05-05
Patent
Electronic Resource
Chinese
Unmanned helicopter propeller hub and unmanned helicopter
European Patent Office | 2020
|Unmanned helicopter flying signal conversion device and unmanned helicopter
European Patent Office | 2024
|