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A helicopter tail rotor load measuring installation device

A technology of helicopter tail rotor and installation device, which is applied in the direction of aircraft component testing, etc., can solve the problems of no installation device, etc., and achieve the effect of easy adjustment, light installation quality, efficient and reliable installation

Active Publication Date: 2022-03-29
CHINA HELICOPTER RES & DEV INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant installation device in our country

Method used

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  • A helicopter tail rotor load measuring installation device

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Embodiment Construction

[0024] Since the structure of the tail rotor system cannot be changed, the tail rotor test equipment can only be installed on the tail rotor system by holding the shaft, and the tangential static friction drives the test system to rotate synchronously with the tail rotor system at high speed. At the same time, after installation, the mass distribution of the test system (including the installation device) on the circumference has a great influence on the overall dynamic balance of the tail rotor. It is required that the tail rotor dynamic balance must be completed within the adjustable range of the tail rotor system weight after installation Adjustment.

[0025] see figure 1 , the present invention provides a helicopter tail rotor load measurement and installation device, including a shaft protection sheet 1, a limit tile 2, and an installation box 3, wherein:

[0026] The shaft protection sheet 1 is surrounded by the helicopter tail rotor bushing, and a pair of the limit til...

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Abstract

The invention discloses a helicopter tail rotor load measuring installation device, which comprises a shaft protection sheet, a limit tile and an installation box body, wherein: the shaft protection sheet is surrounded by the helicopter tail rotor bushing, and the limit tile is A pair is symmetrically arranged up and down, and the shaft protection sheet is clamped and installed by means of splicing and fixing; a pair of the installation box is symmetrically arranged up and down, and the limit tiles are limited and fixed by clamping after splicing , and then a pair of the installation boxes are fixed together by fasteners; the installation box is provided with an acquisition module and an energy storage unit, wherein the acquisition module is used for flight load measurement, and the energy storage unit Used to provide power to the acquisition module. The invention can realize the efficient and reliable installation of the helicopter flight test tail rotor load testing system on the high-speed rotating shaft of the complex and compact tail rotor, and easily realize the adjustment of the overall dynamic balance of the tail rotor system.

Description

technical field [0001] The invention relates to the field of helicopter flight test load testing, in particular to a helicopter tail rotor load measurement and installation device. Background technique [0002] Helicopter flight test load test is an important link in helicopter scientific research and qualification test, and its test data can be used for helicopter flight load spectrum analysis and determination of fatigue life. In order to realize the measurement of the flight load of key components such as the helicopter tail rotor blade, tail rotor hub, tail rotor shaft, and tail rotor pitch change rod, it is necessary to install a test system on the helicopter tail rotor structure to measure the helicopter tail rotor load signal. Acquisition, encoding, transmission, and the power supply of the test system must be solved. In the case of helicopter flight, the test system additionally installed on the tail rotor system of the helicopter rotates at high speed synchronously...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 雒文龙朱光明余忠烜黄盼
Owner CHINA HELICOPTER RES & DEV INST
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