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Helicopter with adjustable empennage attitude

A helicopter and tail technology, applied in the field of helicopters, can solve the problems of helicopter loss of control, poor helicopter stability, damage, etc., and achieve the effects of stable flight, stable flight status, and extended service life.

Inactive Publication Date: 2014-09-03
杨雅茹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the main rotor of the helicopter rotates at a high degree, a downdraft will be generated. If the tail rotor is located below the main rotor, the downsuction generated by the main rotor disturbing the air flow below it will have a great impact on the normal operation of the tail rotor, resulting in Helicopter flying unstable
[0003] The empennage of the existing helicopter is fixedly connected with the fuselage, so the attitude of the empennage is certain. When the helicopter is flying in the air, its angle is constantly changing. In most cases, the main rotor is located above the tail rotor, which seriously affects the The operation of the tail rotor is hindered, which makes the stability of the helicopter poor and seriously affects the life of the helicopter
[0004] In addition, the existing helicopters use the same power source for the main rotor and the tail rotor. If there is a problem with the power source, the entire helicopter will lose control and cause irreparable damage.

Method used

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  • Helicopter with adjustable empennage attitude
  • Helicopter with adjustable empennage attitude
  • Helicopter with adjustable empennage attitude

Examples

Experimental program
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Effect test

Embodiment 1

[0025] This embodiment provides a helicopter with adjustable tail attitude, such as figure 1 As shown, the helicopter includes a fuselage 1, a main rotor 2 arranged at the top of the fuselage 1, and a tail 3 arranged at the rear of the fuselage 1. The tail 3 has a tail rotor 4 at the end. The empennage 3 is a two-section type, one is a first empennage portion 31 fixedly connected to the fuselage 1, and the other is a second empennage portion 32 that is rotatably connected to the end of the first empennage portion 31. The second tail wing part 32 is driven by the attitude adjustment drive motor 33 and can rotate around the end of the first tail part 31.

[0026] The connecting structure of the first tail part 31 and the second tail part 32 is as figure 2 As shown, a first connecting shaft 311 is fixed in the first tail portion 31, a first connecting hole is opened at the end of the first connecting shaft 311, and a rotating bearing 35 is provided in the first connecting hole. A ...

Embodiment 2

[0033] This embodiment provides a helicopter with an adjustable tail posture. Its structure is basically the same as that of the first embodiment. It includes a fuselage, a main rotor set on the top of the fuselage, and a tail set on the rear of the fuselage. The end of the tail has The tail rotor, the main rotor is driven by the main engine. The tail wing includes a first tail wing part fixedly connected with the fuselage and a second tail part rotatably connected with the end of the first tail wing part.

[0034] The difference is such as Figure 4 As shown, the rotating shaft of the tail rotor of the helicopter in this embodiment is connected with a tail rotor drive motor 10. The power system includes a main engine 5 that drives the main rotor to rotate. The main engine 5 is connected to a generator 7, and the generator 7 is connected through a processing conversion device 8. The attitude adjustment drive motor 33 and the processing conversion device 8 are also connected to a...

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Abstract

The invention discloses a helicopter with an adjustable empennage attitude, relates to the technical field of traffic tools, and aims to solve the problem of low landing and take-off safety of a conventional helicopter. An empennage of the helicopter with the adjustable empennage attitude comprises a first empennage part fixedly connected with a helicopter body and a second empennage part rotatably connected with the first empennage part; an attitude adjustment driving motor is used for driving the second empennage part to rotate, so that a main rotor wing and a tail rotor wing are positioned on the same horizontal plane, and influence, which is caused by high-speed rotation of the main rotor wing, on the tail rotor wing is avoided; a steady flight of the helicopter is guaranteed, and the service life of the helicopter is effectively prolonged; furthermore, a main engine is connected with the attitude adjustment driving motor through a generator and a processing conversion device; the processing conversion device is also connected with a storage battery; electric energy generated by the main engine can be stored in the storage battery; when the main engine has fault, the electric energy stored in the storage battery can be used for driving the second empennage part to adjust the attitude and stabilize the flying state, so that a pilot has enough time to escape.

Description

Technical field [0001] The invention relates to the technical field of vehicles, in particular to a helicopter with an adjustable tail posture. Background technique [0002] When the helicopter’s main rotor rotates at a high level, downward suction will be generated. If the tail rotor is located below the main rotor, the downward suction generated by the main rotor disturbing the air flow below it will have a great impact on the normal operation of the tail rotor. The helicopter flight is unstable. [0003] The tail of the existing helicopter is fixedly connected to the fuselage, so the attitude of the tail is fixed. When the helicopter is flying in the air, its angle is constantly changing. In most cases, the main rotor is located above the tail rotor, which seriously affects The operation of the tail rotor makes the stability of the helicopter poor and seriously affects the life of the helicopter. [0004] In addition, the existing helicopter uses the same power source for the ma...

Claims

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Application Information

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IPC IPC(8): B64C9/00B64C27/04
Inventor 杨雅茹
Owner 杨雅茹
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