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Transmission, tilting and vibration reduction system of a helicopter test device in an icing wind tunnel

A technology of a test device and a vibration damping system, which is applied to electromechanical devices, measuring devices, aircraft component testing, etc., can solve the problems of difficult device center of gravity balance, difficult processing, difficult maintenance, etc., and achieves obvious vibration suppression effect and tilting. The effect of novel form and guaranteed accuracy

Active Publication Date: 2022-05-10
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] At present, in the design of the domestic helicopter wind tunnel test device, the motor and the reducer are installed and connected on the test bench as a fixed device, and do not follow the transmission system, which leads to the connection transmission form between the reducer output shaft and the transmission shaft The design is complicated, the processing is difficult, the maintenance is difficult, the cost is high, and the conventional helicopter test device adopts a single fulcrum support to realize the change of the attitude angle of the test model, which has obvious device tilt characteristics, and it is difficult to ensure the balance of the center of gravity of the device

Method used

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  • Transmission, tilting and vibration reduction system of a helicopter test device in an icing wind tunnel
  • Transmission, tilting and vibration reduction system of a helicopter test device in an icing wind tunnel
  • Transmission, tilting and vibration reduction system of a helicopter test device in an icing wind tunnel

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Embodiment Construction

[0057]All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0058] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0059] Such as Figure 1-5 As shown, the transmission, tilting and damping system of a kind of icing wind tunnel helicopter test device of the present embodiment includes a fixed frame 1;

[0060] Tilting support frame 2, which is arranged on the fixed frame 1;

[0061] Transmission system, wherein the transmission shaft 74 passes through the tilting support frame 2;

[0062] The tilting shaft 5 is connected with the transmission system at one end and connected with the tilting support frame 2 at th...

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Abstract

The invention discloses a transmission, tilting and vibration reduction system of an icing wind tunnel helicopter test device, which comprises a fixed frame; a tilting support frame, which is arranged on the fixed frame; and a transmission system, wherein the transmission shaft passes through the tilting frame. The support frame; the tilting shaft, one end of which is connected with the transmission system, and the other end is connected with the tilting support frame; the inclination driver, one end of which is connected with the fixed frame, and the other end is connected with the transmission system; the shock absorber, one end of which is connected with the fixed frame, The other end is connected with the transmission system, and the shock absorber is arranged on the other side of the transmission system relative to the inclination driver. By adopting the transmission, tilting and damping system of the icing wind tunnel helicopter test device of the present invention, the stability of the whole test device can be guaranteed.

Description

technical field [0001] The invention relates to a transmission, tilting and vibration reduction system of an icing wind tunnel helicopter test device, belonging to the technical field of helicopter wind tunnel tests. Background technique [0002] In the helicopter wind tunnel test, researchers often need to design a variety of different forms of helicopter rotor model wind tunnel test devices according to the focus of the wind tunnel test and the difference to be measured, so as to accurately measure the required rotor aerodynamic data. Typical helicopter wind tunnel test devices include coaxial rotor model test devices, helicopter rotor aerodynamic noise measurement test devices, etc. The above helicopter rotor model test devices are designed differently according to the size of the rotor model, the actual environment in the wind tunnel and the measurement needs. . [0003] In order to simulate the icing process of the helicopter rotor model in the icing wind tunnel, aimin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04B64F5/60F16F15/027H02K7/10
CPCG01M9/04B64F5/60F16F15/027H02K7/10
Inventor 黄明其唐敏袁红刚彭先敏
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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