Manufacturing method of three-dimensional woven composite material hollow spiral spring

A helical spring and three-dimensional weaving technology, applied in the direction of coating, etc., can solve problems such as short life, poor impact resistance, and mismatching mechanical properties

Inactive Publication Date: 2018-07-27
刘念
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, some helical springs have a certain angle of woven cloth or two-dimensional braided sleeves on the surface, which can partially improve performance and appearance, but the performance improvement is limited, and because

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
  • Manufacturing method of three-dimensional woven composite material hollow spiral spring
  • Manufacturing method of three-dimensional woven composite material hollow spiral spring
  • Manufacturing method of three-dimensional woven composite material hollow spiral spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The present invention provides a method for manufacturing a three-dimensional braided composite material hollow coil spring, which is described in a preferred embodiment, which includes the following steps:

[0045] One, use carbon fiber, glass fiber, aramid fiber, super strong polyethylene fiber, silicon carbide fiber or silicon nitride fiber and other spinnable and braidable fibers, with a strip-shaped low-melting point alloy as the mandrel 10, in the mandrel 10 A three-dimensional braided tube 20 is braided on the outer surface with a three-dimensional braiding process, and the mandrel 10 and the three-dimensional braided tube 20 form a strip-shaped preform; as figure 1 , figure 2 As shown, in this embodiment, the outer section of the strip-shaped preform is square, and the inner section is circular (the shape is not limited);

[0046] Two, such as image 3 As shown, the strip-shaped preform is wound onto the inner mold 30, wherein the inner mold 30 is cylindrical...

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 provides a manufacturing method of a three-dimensional woven composite material hollow spiral spring. The manufacturing method comprises the following steps: first, using spinnable and weavable fiber to weave a three-dimensional braidd tube on the outer surface of a bent strip-type core model through the three-dimensional weaving technology so as to obtain a strip-type fabric preform; then, placing the strip-type fabric preform in a spiral space formed between an internal model and an external model; next, injecting basis material in the spiral space by adopting the vacuum assisted resin transfer molding process (VARTM), and adopting warming and pressurization to solidify the basis material and the three-dimensional braidd tube into the composite material spiral spring; and finally, removing the core model in the spiral spring to obtain the three-dimensional woven composite material hollow spiral spring. The three-dimensional woven composite material hollow spiral springmanufactured through the manufacturing method has the advantages of light weight, antifatigue, corrosion resistance and impact resistance of the composite material spiral spring to further improve theperformance including light weight and spring rigidity.

Description

technical field [0001] The invention relates to a manufacturing method of a helical spring made of composite material. Background technique [0002] With the advancement of industrial technology, composite materials have been widely used in aerospace, transportation, machinery, construction and other fields, and springs made of them, including leaf springs and coil springs, have also been widely used in automobiles, high-speed rail, etc. Among them, the leaf spring is more widely used due to its simple design, manufacturing and processing technology, and has achieved great results in improving energy efficiency, reducing weight, and reducing life-cycle costs. Due to various factors, the development of coil spring is relatively slow, and the existing products and research results have not fully utilized the comprehensive advantages of composite materials. [0003] With the advancement of technology, three-dimensional weaving technology has been further developed, and three-d...

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): B29C45/14
Inventor 刘念
Owner 刘念
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap