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Short-tail vertical-lifting gyroplane

A technology of helicopter rotor and tail, applied in the field of rotorcraft, can solve the problems of maneuverability without helicopter rotorcraft, failure of autorotation rotorcraft to maximize safety, increased volume and unsafety, etc.

Inactive Publication Date: 2017-10-31
刘凤华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, the advantages of helicopter rotorcraft: it can lift vertically, hover, and fly in any direction; but it has a long tail, especially in the actual use of light helicopters, dragging a long tail increases the volume and Unsafe factors, still can not give full play to the safety of the autogyro
Although the autogyro has a short tail and has unique safety features, it is not as flexible as a helicopter gyroplane, and it needs to glide for a certain distance when it takes off and lands.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] refer to figure 1 , shown in 2,3,5,6,7, a kind of short tail helicopter rotorcraft comprises cockpit (21), single-layer main rotor (17), variable pitch propeller hub (16), second vertical axis ( 18), automatic swash plate (19), main gearbox (23), engine (24), tail propeller assembly (1), sliding wheel (27), frame (28), engine (24) passes through the main gearbox (23), connected with the second vertical shaft (18) and the tail propeller (1) assembly. The tail propeller structural assembly is divided into upper and lower parts, the upper part can be rotated Image 6 and fix the base below. The upper rotatable part has a first horizontal shaft (2) that can be used to install the blade of the autogyro tail propeller (1); The center stretches out, and a cross (30) perpendicular to the axis is installed on the same plane at the end of the stretch. There are connecting rods (36) on the edges of the four ends of the cross. The force arm (31) is connected, and one end of the...

Embodiment 2

[0009] refer to Figure 4 As shown, the overall structure is the same as that in Implementation 1, except that a separate speed-regulating motor (29) is used to provide power to the tail propeller (1), and an electric motor (29) and the tail propeller (1) are fixed on the same rotating base (37), the bottom of the base has a third vertical shaft (38), which is inserted into the round hole of the body and can rotate in the round hole. A connecting rod is installed on one side of the upper rotating shell, and the tail propeller can be controlled by pulling the connecting rod direction of blowing.

[0010] The present invention is characterized in that the tail propeller can change the blowing direction, and compared with the existing technology of the helicopter rotorcraft, the long tail can be shortened, the safety is increased, and the cruising speed is increased. Compared with autogyro aircraft, it can take off and land vertically, translate, hover, and fly in any direction ...

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Abstract

The invention relates to a short-tail vertical-lifting gyroplane. The short-tail vertical-lifting gyroplane comprises a cabin, a single-layer main rotor wing, a range-variable propeller hub, a first vertical shaft, an automatic tilting disc, a main speed reduction box, an engine, a tail propeller assembly, undercarriage rollout wheels and a stander, wherein a rotating shaft of the engine is connected with the first vertical shaft and the tail propeller assembly through the main speed reduction box. According to the short-tail vertical-lifting gyroplane, a tail propeller structural assembly is mounted at the rear part of the helicopter, and the vertical lifting of the airplane can be realized by virtue of the tail propeller structural assembly; in a suspension process, tail propellers blow air to one side of a gyroplane body so as to defense the auto-rotation of the gyroplane body; when the helicopter flies forwards during cruising, the tail propellers gradually blow air backwards so as to provide power to an auto-rotation gyroplane; and by utilizing the tail propellers, the advantages on appearances and functions of the auto-rotation gyroplane and the vertical-lifting gyroplane can be integrated into one gyroplane model, so that the gyroplane has the advantages of namely short tail and safety of the auto-rotation gyroplane as well as the advantages of the vertical-lifting gyroplane that the vertical lifting, translation and suspension can be realized, and the gyroplane can fly to any direction and does not need to rollout.

Description

technical field [0001] The invention belongs to a rotorcraft of an aircraft, in particular to a short-tail helicopter rotorcraft. Background technique [0002] Existing gyroplanes can be divided into helicopter gyroplanes and autogyroplanes. Helicopter rotorcraft generates lift by the rotation of the upper main rotor, blows air to one side from the tail propeller, resists the body rotation caused by the forward movement of the main rotor, and controls the turning direction of the aircraft by controlling the resistance. The main rotor and tail propeller All driven by the engine. Autogyro is a rotorcraft that utilizes the relative airflow during forward flight to blow the upper main rotor to rotate to generate lift. The upper main rotor is not connected to the engine. The power of the forward flight of the autogyro comes from the backward blowing propeller at the tail, and the tail propeller is connected with the engine. From the appearance, in order to meet the load, the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/02B64C27/04B64C27/32
CPCB64C27/02B64C27/04B64C27/32
Inventor 刘凤华
Owner 刘凤华
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