The invention belongs to the technical field of helicopter transmission, and discloses a light helicopter transmission device driven by a synchronous belt, which comprises a main speed reducer, an upper belt wheel, a tension adjusting assembly, a tail transmission shaft assembly, a tail speed reducer, a clutch assembly and a synchronous belt, engine power and rotating speed are connected with a clutch assembly, a lower belt wheel is arranged on the outer side of the clutch assembly, the lower belt wheel is connected with a synchronous belt, and after the rotating speed of the clutch assembly reaches a certain value, the lower belt wheel rotates in the clutch assembly under the action of a clutch. The other side of the synchronous belt is connected with an upper belt wheel, one axial end of the upper belt wheel is meshed with a main speed reducer to transmit motion to a main rotor wing, and the other axial end of the upper belt wheel transmits motion to a tail speed reducer through a tail transmission shaft assembly. A tensioning adjusting assembly is arranged between the end of the lower belt wheel and the end of the upper belt wheel. The synchronous belt can be in a normal tensioning working state, the influence of vibration of a piston engine on synchronous belt tensioning is greatly reduced, the rotating stability of the synchronous belt is improved, and the service life of the synchronous belt is prolonged.
本发明属于直升机传动技术领域,公开了一种同步带驱动的轻型直升机传动装置,包括主减速器、上带轮、张紧调整组件、尾传动轴组件、尾减速器、离合器组件以及同步带;发动机功率和转速连接离合器组件,离合器组件的外侧为下带轮,下带轮连接同步带,当离合器组件的转速达到一定值后下带轮在离合器的作用下跟离合器组件内部转动;同步带另一侧连接上带轮,上带轮的轴向一端与主减速器啮合将运动传递给主旋翼,上带轮的轴向另一端经尾传动轴组件传递给尾减速器;下带轮的端部和上带轮的端部之间设有张紧调整组件。本发明能够使同步带处于正常张紧工作状态,大幅降低活塞发动机振动对同步带张紧的影响,提高同步带转动的稳定性及使用寿命。
Light helicopter transmission device driven by synchronous belt
一种同步带驱动的轻型直升机传动装置
2023-02-03
Patent
Elektronische Ressource
Chinesisch
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