The invention provides an unmanned helicopter starting mechanism combining a synchronous belt and a wet type speed reducer. The unmanned helicopter starting mechanism combining the synchronous belt and the wet type speed reducer comprises an upper engine, a lower engine and the speed reducer. Double-groove belt wheels are arranged on output shafts of the upper engine and the lower engine; the speed reducer is horizontally and rotationally connected with a shaft rod located between the upper engine and the lower engine, the shaft rod is rotationally connected with two grooved wheels, and the grooved wheels are connected with the corresponding double-groove belt wheels through belts; each grooved wheel is provided with a hollow cavity, the shaft rod is fixedly sleeved with the ratchet wheel,and a pawl matched with the ratchet wheel is arranged on the wall of each hollow cavity. The two engines are adopted to drive the main rotor shaft to rotate in the same rotating direction, so that the unmanned helicopter flies stably, when any one engine breaks down and stops working, the other engine independently drives the main rotor shaft, and the faulted engine is not clamped with the driving end of the main rotor shaft, so that the flight safety performance is greatly enhanced.
本发明提供了一种同步带与湿式减速器组合的无人直升机发动机构,该同步带与湿式减速器组合的无人直升机发动机构包括:上发动机、下发动机以及减速器;上发动机以及下发动机的输出轴上均设置有双槽皮带轮;减速器水平转动连接有位于上发动机以及下发动机之间的轴棒,轴棒上转动连接有两个槽轮,且槽轮通过皮带与对应的双槽皮带轮连接;每个槽轮均具有中空腔体,棘轮固定套装在轴棒上,中空腔体的壁上设置有与棘轮相配合的棘爪。本发明采用两个发动机同一旋转方向驱动主旋翼轴转动,使无人直升机飞行稳定,并在任意一个发动机故障停止工作时,另一发动机独立驱动主旋翼轴,故障发动机与主旋翼轴的驱动端脱离卡合,大大增强飞行安全性能。
Unmanned helicopter starting mechanism combining synchronous belt and wet type speed reducer
一种同步带与湿式减速器组合的无人直升机发动机构
2020-08-07
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
European Patent Office | 2015
|Speed reducer shell of crossed double-rotor unmanned helicopter and speed reducer
European Patent Office | 2021
|Synchronous belt transmission vibration reduction system of unmanned helicopter
European Patent Office | 2020
|