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Method for manufacturing wedge block having same length of curves of each cross section

A technology with equal length and section curves, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of affecting blade life, reducing strength, and wedge top not in place, so as to improve blade life and reduce strength , to avoid loose effects

Active Publication Date: 2018-06-29
AVIC HUIYANG AVIATION PROPELLER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The carbon beam needs to be wrapped around the wedge. Because the lengths of the curves of each section of the wedge are not equal, the carbon fiber cloth will wrinkle on the wedge, causing the wedge to not be in place.
The cavity structure becomes loose, reducing the strength, and damage occurs during operation, which affects the life of the blade

Method used

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  • Method for manufacturing wedge block having same length of curves of each cross section
  • Method for manufacturing wedge block having same length of curves of each cross section
  • Method for manufacturing wedge block having same length of curves of each cross section

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, the present invention is further described:

[0017] A wedge block structure with equal length of each section curve, the wedge block is a blade root structure for integral molding, there is a square hole inside the metal flange 1, and the carbon beam extending from the blade body is wound from one side and placed on the flange. The two prefabs 2 in it extend from the other side to the blades; the carbon beams wrapped around the prefabs 2 are tightened with wedges to achieve one-piece molding. In order to better hold the carbon fiber cloth tightly, the wedges are made into equal perimeters of each section. In order to achieve this purpose, the difference in the height direction of the wedge blocks is used to compensate the different lengths of the original cross-section curves. Select on the wedge as figure 2 The 6 sections shown, the section spacing is 40mm, the length of the section curve h1-h6 is calculated by CATIA ...

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PUM

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Abstract

The invention belongs to the technical field of mechanical structure design, and relates to a method for manufacturing a wedge block having the same length of curves of each cross section. The methodselects n planes on the wedge block, calculates a difference value of the length of the curves around the cross section through CATIA software, compensates the difference value of the length of the curves around the cross section by using the height difference, and reconstructs an entity with the same length of the curves around the cross section. By using the structure, when carbon fibers are wound around the wedge block, wrinkles do not occur due to the same length of the curves around the cross section; the reduction of strength caused by loosening of an internal structure is avoided, the damage during operation is reduced, and the service life of blades is prolonged.

Description

technical field [0001] The invention belongs to the technical field of mechanical structure design, and relates to a method for manufacturing wedge blocks with equal lengths of cross-section curves. Background technique [0002] As the country's economic strength increases, efforts are being made to develop into high-tech fields such as aviation and aerospace. The development of various aerospace and aviation vehicles requires a lot of wind tunnel tests. , Air resistance, heat resistance and compression tests of high-speed trains and ships also require wind tunnel testing. Therefore, low-speed, transonic, supersonic and hypersonic wind tunnels have been developed rapidly. So far, my country has had low-speed, high-speed, ultra-high-speed, shock wave, arc and other wind tunnels. In order to adapt to changes in market demand, our company's The product should also be adjusted accordingly. [0003] The compressor is the core equipment of the continuous transonic wind tunnel, an...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/20
Inventor 闵殿喜李伯瀚赵书静凌磊
Owner AVIC HUIYANG AVIATION PROPELLER
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