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Detection method and detection tool for the inclination angle of bushing hole at the root of composite blade

A composite material and paddle root technology, applied in the detection field, can solve the problems of long detection period, high detection cost, low detection efficiency, etc., and achieve the effect of reducing detection cost, improving detection efficiency, and improving detection efficiency

Active Publication Date: 2017-06-06
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the angle α needs to be detected by a three-coordinate measuring machine, the detection cycle is long, the detection efficiency is low, and the detection cost is high

Method used

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  • Detection method and detection tool for the inclination angle of bushing hole at the root of composite blade
  • Detection method and detection tool for the inclination angle of bushing hole at the root of composite blade
  • Detection method and detection tool for the inclination angle of bushing hole at the root of composite blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1, the inclination angle of the bushing hole at the root of a composite material blade of 01 pieces of a certain type of helicopter was detected.

[0020] The angle between the axis of the liner hole 2 at the root of the composite material blade to be tested and the plumb line is α=6°±0.1°: the detection steps are:

[0021] 1. Place the paddle: place the composite blade 1 flat on the workbench with the upper wing facing upwards, and extend the root of the composite blade out of the edge of the workbench;

[0022] 2. Clamp the bushing hole detection tool: hold the handle 5 of the detection tool 3 with both hands, and put the detection window of the detection tool 3 on the outside of the root of the composite material blade 1, so that the lower surface 2c of the lower shoulder of the bush and the detection Fit the lower surface of the window 3a, align the pin hole 3b on the frame 3 with the bushing hole 2, and insert the two detection pins 4 into the pin hole 3b a...

Embodiment 2

[0024] Example 2, detecting the inclination angle of the bush hole at the root of 05 composite blades of a certain type of helicopter.

[0025] The angle between the axis of the liner hole 2 at the root of the composite material blade to be tested and the plumb line is α=6°±0.1°: the detection steps are:

[0026] 1. Place the paddle: place the composite blade 1 flat on the workbench with the upper wing facing upwards, and extend the root of the composite blade out of the edge of the workbench;

[0027] 2. Clamp the bushing hole detection tool: hold the handle 5 of the detection tool 3 with both hands, and put the detection window of the detection tool 3 on the outside of the root of the composite material blade 1, so that the lower surface 2c of the lower shoulder of the bush and the detection Fit the lower surface of the window 3a, align the pin hole 3b on the frame 3 with the bushing hole 2, and insert the two detection pins 4 into the pin hole 3b and the bushing hole 2 resp...

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Abstract

The invention belongs to the technology of detection, and relates to a detection method for a composite material propeller blade shank bushing hole inclination angle and a detection tool thereof. The detection steps are that propeller blades are arranged; a bushing hole detection tool is clamped; and an included angle alpha is detected. The detection tool is characterized in that the detection tool is composed of a square frame (3), two detection pins (4) and two handles (5). The invention brings forward the detection method for the composite material propeller blade shank bushing hole inclination angle and the detection tool thereof so that the detection period is greatly shortened, detection efficiency is enhanced and detection cost is reduced.

Description

technical field [0001] The invention belongs to detection technology, and relates to a detection method and a detection tool for the inclination angle of a bushing hole at the root of a composite blade blade. Background technique [0002] For the structure of the root of a certain type of helicopter composite blade, see figure 1 , the root of the tested composite material blade has two bushing holes 2 of the same size arranged along the chord direction, and the angle between the axis of the bushing hole 2 and the plumb line is α=6°±0.1°, The included angle α is located in the section passing through the axis of the bushing hole 2 and perpendicular to the upper airfoil of the composite material blade, and the axis of the bushing hole 2 is perpendicular to the upper surface 2b of the upper shoulder of the bushing and the lower surface of the lower shoulder of the bushing 2c. At present, the included angle α needs to be detected by a three-coordinate measuring machine, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/24
Inventor 康昱天徐月茹任淼隋金江李丽丽金欣
Owner HARBIN