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

Mixed-structure blade, manufacturing method and sewing positioning clamp

A technology for positioning fixtures and hybrid structures, which can be used in household appliances, other household appliances, and household components, etc., and can solve the technical threshold of degumming, delamination, high mechanical performance requirements of the adhesive layer, and composite material-titanium alloy edge-wrapped fan blades and high manufacturing costs, etc., to achieve the effect of reducing the size of the clamp, reducing the weight, and simplifying the structure

Active Publication Date: 2020-04-21
AECC COMML AIRCRAFT ENGINE CO LTD
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal reinforced edge of the composite material fan blade currently used is restricted by the traditional processing technology, and only a few suppliers in the world have the ability to process the metal reinforced edge, which has caused the technical threshold and manufacturing of the composite material-titanium alloy edge-wrapped fan blade. The phenomenon that the cost remains high
[0004] Metal and composite materials are usually connected by adhesive bonding. This connection method requires high mechanical properties of the adhesive layer, especially when the blade is impacted, it is prone to degumming, delamination and other damage, resulting in the separation of metal and composite materials.
In addition, the complexity of the bonding process also restricts the development of composite fan blades

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
  • Mixed-structure blade, manufacturing method and sewing positioning clamp
  • Mixed-structure blade, manufacturing method and sewing positioning clamp
  • Mixed-structure blade, manufacturing method and sewing positioning clamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] A variety of different implementations or examples for implementing the subject technical solution are disclosed below. To simplify the disclosure, specific examples of each element and arrangement are described below. Of course, these are only examples and are not intended to limit the protection scope of the present invention. For example, the first feature described later in the specification is formed above or above the second feature, which may include an embodiment in which the first and second features are directly connected, or may be formed between the first and second features Additional features are implemented so that there may be no direct connection between the first and second features. In addition, reference numerals and / or letters may be repeated in different examples in these disclosures. This repetition is for brevity and clarity, and does not indicate the relationship between the various embodiments and / or structures to be discussed. Further, when t...

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 discloses a mixed-structure blade, a manufacturing method and a sewing positioning clamp. The sewing positioning clamp comprises a pressure face par and a suction force face part, the pressure face part is provided with multiple independent detachable pressure face segments, the suction force face part is provided with multiple independent detachable suction force face segments whichare correspondingly connected with the pressure face segment at the same time, and the pressure face part and the suction force face part limit a sewing cavity and are used for wrapping a blade. Themanufacturing method and the sewing positioning clamp have the advantages of being accurate in sewing, wide in adaptation, simple in structure and the like. The mixed-structure blade has the advantages of being low in machining cost, stable in structure, high in anti-bird-collision property and the like.

Description

Technical field [0001] The invention relates to a mixed structure blade, a manufacturing method and a stitching positioning clamp. Background technique [0002] Large-size and light-weight fan blades are one of the keys to larger bypasses than civil aviation engines. At present, the lightweight and large bypass ratio fan blade solutions that have been successfully applied to products in the world include pure titanium alloy hollow fan blades and composite material-titanium alloy edging fan blades. If the equivalent hollow rate (weight reduction of actual blades / weight of solid titanium alloy blades of the same size) is used to measure the weight reduction effect of lightweight fan blades, the weight reduction of all titanium alloy hollow blades has reached 40% (that is, the actual hollow rate ), while the composite material-titanium alloy edging blade has achieved a weight reduction of more than 60% equivalent hollow rate. Fan blades with a hybrid structure composed of composit...

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
IPC IPC(8): B29C65/62B29C65/64B29C65/78B29L31/08
CPCB29C65/62B29C65/64B29C65/7847B29L2031/085
Inventor 刘传欣曹源王祯鑫王少辉倪晓琴王星星赵宪涛龙丹
Owner AECC COMML AIRCRAFT ENGINE CO LTD
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