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Non-articulated rotor and rotorcraft comprising a rotor of this type

一种旋翼、关节的技术，应用在旋翼飞机领域，能够解决强度安全问题、不适合翻转旋翼等问题，达到减小振动、改善飞行性能或飞行特征、改善空气动力学性能和机械性能的效果

Inactive Publication Date: 2008-11-26
AIRBUS HELICOPTERS DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly jointless rotors are therefore not suitable for flipping rotors and cause strength as well as safety problems

Method used

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  • Non-articulated rotor and rotorcraft comprising a rotor of this type
  • Non-articulated rotor and rotorcraft comprising a rotor of this type
  • Non-articulated rotor and rotorcraft comprising a rotor of this type

Examples

Experimental program
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Embodiment Construction

[0028] figure 1 A schematic, very simplified perspective view of the jointless rotor according to the invention according to the first embodiment is shown. figure 2 show figure 1 A schematic very simplified perspective view of a single rotor blade joint of the rotor. The jointless rotor wing of the present invention is simultaneously constructed as a bearingless rotor wing, having a rotor hub 2, a rotor shaft 4 having a rotor axis A, and a torque transmission element 6 non-rotatably connected with the rotor shaft 4, which is In this embodiment, it is configured as a cross-shaped rotor hub star 6 with four arms 6a. In addition, the rotor is equipped with four rotor blades 8 of the same type, each of which is equipped with a corresponding arm 6a.

[0029] For each rotor blade 8, the rotor has a blade joint on the rotor hub side with a blade joint ring 10 that eliminates centrifugal force. The blade joint ring surrounds the rotor shaft 4 without connection and is incompatible wit...

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PUM

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Abstract

The invention relates to a non-articulated rotor, in particular for a rotorcraft. Said rotor comprises: a rotor head (2), a rotor mast (4) with a rotor axis (A), a torque-transmission element (6) that is rotationally fixed to the rotor mast (4), at least one rotor blade (2) and a rotor-blade connection on the rotor head side comprising a blade-connection eye (10) that conveys centrifugal forces, said eye surrounding the rotor axis (A) and the rotor mast (4) and being rotationally fixed (12, 14) to the torque-transmission element (6).

Description

Technical field [0001] The invention relates to a jointless rotor and a rotorcraft with this type of rotor. Background technique [0002] The buoyancy-generating rotor blades of the jointless rotors of the rotorcraft are mainly made of fiber composite materials. During the operation of the rotor, the rotor blades are deflected in all directions and are therefore strongly loaded. The rotor blade has a structural element with an impact and swing soft area on its end pointing to a rotor hub, which allows the rotor blade to move in the impact and swing direction. This structural element is also called a soft beam. The impact and swing soft areas of structural elements are collectively referred to as bending soft areas. In the direction of the longitudinal axis of the rotor blade, the structural element usually forms a blade joint at its end pointing to the rotor hub, which is used to connect the rotor hub or a rotor hub sheet. [0003] The transition area from the rotor joint to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C27/33B64C27/48B64C27/28B64C29/00
CPCB64C29/0033B64C27/33B64C27/48B64C27/28
Inventor G·贝克R·普法勒尔
Owner AIRBUS HELICOPTERS DEUT GMBH