Upper rotor wing control mechanism for coaxial helicopter model rotor wing test

A coaxial helicopter and control mechanism technology, applied in the field of rotor test, can solve the problem of increasing the resistance of the hub

Inactive Publication Date: 2021-02-26
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The control of the coaxial helicopter can be controlled by the rod system, such as the Russian Ka series helicopter, but all the rod systems are in the wind field, which increases the resistance of the hub

Method used

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  • Upper rotor wing control mechanism for coaxial helicopter model rotor wing test

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] Embodiments of the present invention provide a kind of upper rotor control mechanism for coaxial helicopter model rotor test, such as figure 1 As shown, the upper rotor control mechanism is arranged inside the upper hub, and the mechanism includes: a support rod 1, a guide cylinder 2, an actuator 3, an automatic tilter 4, an anti-twist arm 5 and a tie rod 6;

[0027] Wherein, the support rod 1 is fixed on the non-rotating structure under...

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Abstract

The invention belongs to the technical field of rotor wing tests, and discloses an upper rotor wing control mechanism for a coaxial helicopter model rotor wing test. The upper rotor wing control mechanism is arranged in an upper propeller hub, a support rod is fixed on a non-rotating structure below the propeller hub, and the lower end of a guide cylinder is fixed on a support rod base; an automatic inclinator is connected to the guide cylinder; a movable ring is arranged on the outer ring of the automatic inclinator, a plurality of U-shaped grooves are formed in the movable ring, each U-shaped groove is connected with one end of a pull rod, and the other end of each pull rod is connected with one end of each paddle; at least one connecting structure is further arranged on the movable ring, the connecting structure is connected with one end of an anti-torsion arm, and the other end of the anti-torsion arm is connected to the propeller hub; the fixed end of an actuator is connected to the bottom of the guide cylinder, and the actuating end of the actuator is connected to a fixed ring of the automatic inclinator. The automatic inclinator and the propeller hub are driven by the anti-torsion arm to move together, and a rotor wing system is operated through different displacement states of the actuating cylinder, so that the purpose of rotor wing operation is achieved.

Description

technical field [0001] The invention belongs to the technical field of rotor tests, and in particular relates to an upper rotor control mechanism for coaxial helicopter model rotor tests. Background technique [0002] With the development of helicopter technology, various helicopter configurations have emerged, and the coaxial helicopter is a typical representative of the new configuration helicopter. [0003] During the flight of the helicopter, due to the rotation of the rotor and the influence of the forward airflow during flight, the rotor blades are in a periodic motion. This periodic motion determines that the helicopter rotor can be used as the lifting surface of the helicopter. , can also be used as a helicopter control surface. In order to realize the periodic motion of the blade, the control mechanism of the rotor is particularly important. [0004] The control of single-rotor conventional helicopters is generally under the hub, which can easily control the rotor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B9/46
CPCG09B9/46
Inventor 邓建军陈垚锋黄建萍陈卫星
Owner CHINA HELICOPTER RES & DEV INST
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