A coaxial rotor control device

Abstract

The embodiment of the present invention provides a coaxial rotor control device, the output ends of the gearbox of the device are respectively sleeved on the outer shaft and the inner shaft, the outer shaft is hingedly mounted on the inner shaft, and the second swash plate-fixing and The second swash plate moves; the transmission shaft is placed in the inner shaft, and the inner shaft head frame is fixedly installed on the end surface, and is hingedly installed on the second steering rod; the transmission shaft is respectively connected with the first steering rod and the second steering rod The rod is hinged; the first direction changing rod is respectively hinged with the first pull rod and the inner axle head frame; the connecting rod is hinged with the first swash plate; the first swash plate is fixedly hinged with the first steering gear and the first anti-torque arm respectively ; The first steering gear is hingedly mounted on the outer wall of the gearbox; the gearbox is hinged with the second steering gear; the second steering gear is hinged with the second swash plate; the second swash plate is hinged with the second anti-torsion arm ; The second swash plate-moving outer wall is hinged with one end of the second pull rod. The device provided by the invention can increase the lift force under the condition that the space occupied by the blade remains unchanged.

Description

technical field [0001] The invention relates to the technical field of helicopter rotors, in particular to a coaxial rotor control device. Background technique [0002] Single-rotor helicopters rely on the tail rotor for balance and steering. Compared with single-rotor helicopters, coaxial helicopters perform heading control and balance through the difference between the upper and lower rotors. Due to the compact structure and good maneuverability of coaxial helicopters, Therefore, it has a wide range of applications. [0003] Coaxial helicopters generally achieve heading control and balance by controlling the change of rotor pitch and coordinating the balance relationship between the two rotors during flight. In the prior art, a coaxial helicopter has a coaxial rotor control device, and the coaxial helicopter generally controls the pitch between the blades through the coaxial rotor control device. [0004] Although the pitch between the blades can be controlled by the abo...

AI Technical Summary

Problems solved by technology

Since the above-mentioned space is small, the lift provided by the above-mentioned coaxial rotor control device is easy to be small. To increase the lift, it is necessary to increase the space formed by the upper rotor and the lower rotor.

In the prior art, the space formed by the upper rotor and the lower rotor is generally increased by increasing the arm length of the blade. However, increasing the arm length of the blade will increase the space occupied by the blade, which in turn makes the upper rotor and the lower rotor In order to avoid the occurrence of the above-mentioned situation of paddling, the distance between the upper rotor and the lower rotor is generally increased. However, the distance between the upper rotor and the lower rotor increases, which will make the helicopter Increased flight resistance

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