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High-speed rail bogie integral force bearing structure of three-dimensional woven composite material, and application thereof

A technology of three-dimensional weaving and composite materials, which is applied to bogies, railway car body parts, transportation and packaging, etc., can solve the problems of large load-bearing hidden dangers, and achieve the effects of strong practicability, structural strength and integrity, and simple structure

Pending Publication Date: 2020-06-19
SHANDONG JIANZHU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors found that the traditional fiber composite bogie load-bearing structure mainly adopts the design idea of ​​two-dimensional laminated composite material layup, and the laminated pressing molding process brings a relatively large gap between the layers of the composite material. bearing hidden dangers

Method used

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  • High-speed rail bogie integral force bearing structure of three-dimensional woven composite material, and application thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A high-speed rail bogie load-bearing structure with an integral three-dimensional braided composite material structure, using T800 high-strength carbon fiber and Kevlar49 aramid fiber with a mixing ratio of 5:1 for hybrid prefabricated body weaving design. The prefabricated body adopts a three-dimensional four-way integral braided structure . In the process of processing the front and rear side panels of the load-bearing structure of the bogie, a V-shaped structural design with variable section thickness is adopted. The end of the V-shaped side panel is braided with three-dimensional and four-way hybrid fibers. When it is close to the connection between the side panel and the middle beam The part adopts a three-dimensional seven-direction hybrid fiber weaving structure, and the transitional weaving structure from the end of the side plate to the middle beam connection of the side plate is: three-dimensional four-direction, three-dimensional five-direction, three-dimensio...

Embodiment 2

[0030] A high-speed rail bogie load-bearing structure with an integral three-dimensional braided composite material structure, using T1000 high-strength carbon fiber and Kevlar29 aramid fiber with a mixing ratio of 4:1 for hybrid prefabricated body weaving design. The prefabricated body adopts a three-dimensional four-way integral braided structure . In the process of processing the front and rear side panels of the load-bearing structure of the bogie, a V-shaped structural design with variable section thickness is adopted. The end of the V-shaped side panel is braided with three-dimensional and four-way hybrid fibers. When it is close to the connection between the side panel and the middle beam The part adopts a three-dimensional seven-direction hybrid fiber weaving structure, and the transitional weaving structure from the end of the side plate to the middle beam connection of the side plate is: three-dimensional four-way, three-dimensional six-way, three-dimensional seven-wa...

Embodiment 3

[0034]A high-speed rail bogie load-bearing structure with an integral three-dimensional braided composite material structure, using T800 high-strength carbon fiber and UHMWPE fiber with a mixing ratio of 5:2 for hybrid prefabricated body weaving design. The prefabricated body adopts a three-dimensional five-directional overall braided structure. In the process of processing the front and rear side panels of the load-bearing structure of the bogie, a V-shaped structural design with variable section thickness is adopted. The end of the V-shaped side panel is braided with three-dimensional and four-way hybrid fibers. When it is close to the connection between the side panel and the middle beam The part adopts a three-dimensional seven-direction hybrid fiber weaving structure, and the transitional weaving structure from the end of the side plate to the middle beam connection of the side plate is: three-dimensional four-way, three-dimensional five-way, three-dimensional six-way, thre...

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Abstract

The invention relates to a high-speed rail bogie integral force bearing structure adopting a three-dimensional woven composite material, and an application thereof. The high-speed rail bogie integralforce bearing structure comprises a front side plate, a rear side plate and a middle cross beam. The structure is characterized in that the front side plate, the rear side plate and the middle cross beam are integrally formed by the hybrid fiber three-dimensional woven composite material, wherein the front side plate and the rear side plate adopt variable-thickness V-shaped structural design, endinstallation bases for installing springs are arranged at the two ends of the front side plate and the rear side plate, middle installation bases for installing the springs are arranged in the middlesof the front side plate and the rear side plate, the end installation bases and the middle installation bases are designed to be of a special transition type three-dimensional woven composite transition structure, and metal reinforcing parts are embedded in the end installation bases and the middle installation bases. A barrier plate is designed in the middle of the middle cross beam and is reinforced by the pre-embedded metal parts, so that the overall anti-fatigue performance of the bearing structure is guaranteed, and the structural strength and the integrity of the connecting process of the bearing structure and other parts are guaranteed.

Description

technical field [0001] The invention belongs to the application field of high-performance fiber composite material rail transit technology, and in particular relates to an overall load-bearing structure of a high-speed train bogie using a three-dimensional braided composite material. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] The traditional high-speed motor car bogie structure mainly adopts metal structure welded into a whole as the main load-bearing part, and its side beam is generally designed as a box structure, and the main components such as gear box, braking device and motor are assembled on the bogie. The structure is relatively cumbersome. During the applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/50
CPCB61F5/50
Inventor 于宽朱波周亮刘玉兰王永伟秦溶蔓
Owner SHANDONG JIANZHU UNIV
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