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Helicopter rotor

A technology for helicopter rotors and rotors, which is applied in the field of helicopter rotor blades, can solve problems such as ineffective effects, achieve obvious improvement effects, and improve mechanical strength

Active Publication Date: 2013-10-02
JINAN HONGYI GEZHI TECH & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the way to solve the above problems is to increase the stiffness of the rotor by improving the material of the rotor, but the effect is not obvious

Method used

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Embodiment Construction

[0016] As we all know, helicopters rely on the rotation of the wings to generate lift. The size of the rotor area determines the lift of the helicopter. The larger the helicopter, the wider and longer the rotor is. Now there are many types of helicopters produced in various countries. Their structure Most of the forms use a single-axis rotating main wing to generate lift and a single-axis rotating tail to balance the reaction force. In addition, there are concentric twin-axis rotating wings in opposite directions to balance the reaction force, such as Ka-27 / Ka-28 helicopters. , and the 'Osprey' Chinook, which is only currently equipped with troops, and so on. We have observed that when the wings of a large helicopter are at rest, the outer edge of its wing is naturally curved downward, and at the same time when it takes off, the outer edge of its wing is tilted upward relative to the axis of rotation. We know that In order to prevent the horizontal tower arm from bending down...

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Abstract

A helicopter rotor comprises a main shaft, a rotor and a pull rod. The upper part of the rotor is provided with an auxiliary rotor; the auxiliary rotor is adjustably installed on the main shaft through cross joints in a three-dimensional space; a connecting rod allowing synchronous angle adjustment of the rotor and the auxiliary rotor is arranged between the two; one end of the connecting rod is hinged on the rotor, and the other end of the connecting rod is hinged on the auxiliary rotor; a connecting piece is arranged between the rotor and a free end of the auxiliary rotor; and one end of the connecting piece is hinged on the rotor, and the other end of the connecting piece is hinged on the auxiliary rotor. According to the invention, the rotor is arranged above or below the auxiliary rotor to form an effective support, so that the rotor is changed from a cantilever beam into a triangular structure with auxiliary support; meanwhile, the auxiliary rotor also has obvious promotion effect, and greatly improves mechanical strength of the rotor. The helicopter rotor has obvious improvement effect, and can be applied to helicopter.

Description

technical field [0001] The invention relates to the technical field of helicopter rotor blades. Background technique [0002] The helicopter engine drives the rotor to provide lift. The lift working principle of the rotor is actually the same as that of a fixed-wing aircraft, except that the helicopter rotor is driven by the engine and actively contacts with the air to generate lift, lifting the helicopter in the air. Fixed-wing aircraft have fixed wings. During the process of generating thrust through the engine, the air pressure difference generated when the airflow quickly passes the upper and lower sides of the wing, or lift, makes the aircraft soar in the sky. [0003] Existing helicopter rotors are all made of carbon fiber composite materials, which have the characteristics of light weight and high strength. In practice, due to the large radius of the helicopter rotor, the state of the rotor is different in the static state and the high-speed rotating state, and it wi...

Claims

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Application Information

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IPC IPC(8): B64C27/32
Inventor 马帅
Owner JINAN HONGYI GEZHI TECH & TRADE
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