Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of integrated composite propeller blade for stratospheric airship

A stratospheric airship and propeller blade technology, applied in applications, household appliances, household components, etc., can solve the problems of thin-walled blade delamination, bonding bubbles, etc., to achieve good quality of finished products, improve yield, and improve bearing capacity Effect

Inactive Publication Date: 2017-01-04
EAGLES MEN AERONAUTIC SCI & TECH GRP
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stratospheric airship is a new type of low-cost, low-energy-consumption stratospheric aircraft. Its large high-performance propeller plays a key role in the control and has become a key technology. Generally, the propeller is spliced, and its strength is nearly twice that of the integrated propeller. At the same strength, the general propeller is nearly twice as heavy as the integrated propeller, and there are problems such as delamination of thin-walled blades and bonding bubbles. It is necessary to study a lightweight and efficient integrated propeller for stratospheric airships. Composite propeller blades solve the above bottlenecks

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of integrated composite propeller blade for stratospheric airship
  • Preparation method of integrated composite propeller blade for stratospheric airship
  • Preparation method of integrated composite propeller blade for stratospheric airship

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation method of the propeller blade of the present invention, such as figure 1 shown, including:

[0040] Step 1: Prepare the mold device for preparing the propeller blade, such as figure 2 As shown, the mold device includes a mold device bottom plate 1, a mold body 10 arranged on the mold device bottom plate 1, a vacuum bag 3 that seals the mold body 10 inside the mold device, and the vacuum bag 3 The upper part has a vacuum nozzle 4, such as image 3 and Figure 4 As shown, the mold body 10 includes an outer mold lower mold 12, a core mold 17 and an outer mold upper mold 11, and the opposite surfaces of the outer mold upper mold 11 and the outer mold lower mold 12 are provided with an outer mold cavity 15 , at least one positioning device 14 is respectively arranged at the corresponding positions outside the cavity 15 of the upper mold 11 of the outer mold and the lower mold 12 of the outer mold, and the upper mold 11 of the outer mold and the lower mold...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of preparation of propeller blades and relates to a preparation method of an integrated composite propeller blade for a stratospheric airship. The preparation method comprises: 1, making a mold apparatus; 2, preparing carbon fiber prepreg cloth 16; 3, preparing the mold apparatus; 4, making a preform 13; 5, assembling the mold apparatus; 6, evacuating the mold apparatus; 7, heating and pressurizing for solidifying; 8, cooling to room temperature; 9, demolding; 10, finishing preparation of the finished blade. The preparation method has the advantages that the method is simple, the blade has good quality, the blade is high in strength and light in weight, and making efficiency is high; bearing capacity of a propeller is effectively improved; overall quality of the propeller is improved; yield is effectively increased; it is ensured that the propeller bears uniform stress during solidifying such that deformation or bubbles are avoided; maneuvering property of the stratospheric airship is improved, the self-weight is reduced at the premise of ensuring overall rigidity and stability, and working efficiency of the propeller is improved.

Description

technical field [0001] The invention belongs to the technical field of propeller blade preparation, and relates to a method for preparing an integrated composite material propeller blade for a stratospheric airship. Background technique [0002] In recent years, various countries are conducting research on various types of stratospheric aircraft. The stratospheric airship is a new type of low-cost, low-energy-consumption stratospheric aircraft. Its large high-performance propeller plays a key role in the control and has become a key technology. Generally, the propeller is spliced, and its strength is nearly twice that of the integrated propeller. At the same strength, the general propeller is nearly twice as heavy as the integrated propeller, and there are problems such as delamination of thin-walled blades and bonding bubbles. It is necessary to study a lightweight and efficient integrated propeller for stratospheric airships. Composite material propeller blades solve the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29L31/08
CPCB29C70/342B29L2031/087
Inventor 郭齐红彭钜锴韩佳星郭金涛
Owner EAGLES MEN AERONAUTIC SCI & TECH GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com