High-speed train carbon fiber floor structure

Abstract

The utility model discloses a high-speed train carbon fiber floor structure which comprises a plurality of main body modules and expansion modules, every two adjacent main body modules in the plurality of main body modules are connected in a glued mode through plywood, and the expansion modules are arranged at the ends of the main body modules and used for expanding the main body modules. The main body module and the expansion module are movably connected through a connecting piece, the main body module comprises a phenolic aldehyde core plate and carbon fiber panels, and the carbon fiber panels cover the upper surface and the lower surface of the phenolic aldehyde core plate. The high-speed rail vehicle floor is suitable for high-speed rail vehicle floors, through the mode that plywood gluing connection and mechanical connection are combined, the reliability and stability of overall connection of the floors are guaranteed, the problem of stress concentration possibly caused by a traditional connection mode is solved, and the cooperative work performance of the floors and the overall structure of a vehicle body is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of high-speed train technology, and in particular to a carbon fiber floor structure for high-speed trains. Background Technology

[0002] High-speed railway, or HSR for short, refers to a railway system with high design standards that allows trains to run safely at high speeds; it is a type of railcar.

[0003] Due to the characteristics of high-speed trains, the design of their floor structure is particularly important and requires consideration of many factors. In the existing high-speed train floor structures, although the overall structural strength of the floor is relatively high, the specific modulus is relatively low, and the overall weight of the floor is also relatively high. This undoubtedly increases the weight of the entire train, leading to a greater load and higher energy consumption. Furthermore, in the existing floor structures, the splicing structure is simple, making it difficult to relieve stress on the floor and affecting the quality of the entire floor structure. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing high-speed train floor structures, which, although possessing high overall structural strength, have low specific modulus and high overall weight. This undoubtedly increases the weight of the entire train, leading to a greater load and higher energy consumption. Furthermore, the existing floor structures feature simple splicing structures, making stress relief difficult and affecting the overall quality of the floor structure. This invention provides a carbon fiber floor structure for high-speed trains, which combines plywood bonding with mechanical connections. This ensures the reliability and stability of the overall floor connection while avoiding stress concentration problems that may occur with traditional connection methods, effectively improving the collaborative performance between the floor and the overall train body structure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model discloses a carbon fiber floor structure for high-speed trains, including multiple main modules, with adjacent main modules connected by plywood.

[0007] An expansion module, which is disposed at the end of the main module, is used to expand the main module;

[0008] The main module and the expansion module are movably connected by connectors. The main module includes a phenolic core board and a carbon fiber panel. The carbon fiber panel covers the upper and lower surfaces of the phenolic core board. Therefore, the flooring is connected by a combination of plywood bonding and mechanical connection, which not only ensures the reliability and stability of the overall connection of the flooring, but also avoids the stress concentration problem that may be caused by traditional connection methods, effectively improving the collaborative performance of the flooring and the overall structure of the vehicle body.

[0009] Preferably, the plywood is located between the upper and lower carbon fiber panels in the main module, and the thickness of the plywood is the same as the thickness of the phenolic core board, so that the surface of all the main modules is flat and uniform after they are connected.

[0010] Preferably, the plywood has a thickness of 17.1 mm and the carbon fiber panel has a thickness of 1.2 mm.

[0011] Preferably, the main module and the expansion module have corresponding connection ports, and the connector is movably assembled in the connection port.

[0012] Preferably, the connector has movable shafts rotatably inserted at both ends, with the ends of the movable shafts inserted into the inner wall of the connector. This way, when there is relative movement between the main module and the expansion module, the coordinated movement of the movable shafts can reduce the stress generated between the main module and the expansion module, thereby improving the stability of the entire floor structure.

[0013] Preferably, the two ends of the connector are semi-circular, so that when there is relative movement between the main module and the expansion module, the connector can better cooperate to rotate.

[0014] Preferably, a sealing strip is provided at the upper position of both ends of the connector. The upper surface of the sealing strip has a horizontal structure, and the lower surface has an arc-shaped structure that fits the connector. The sealing strip is elastic, which can effectively prevent dust from accumulating in the hollow area of ​​the connector.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This floor uses a combination of plywood bonding and mechanical connections, ensuring the reliability and stability of the overall floor connection while avoiding stress concentration problems that may occur with traditional connection methods. This effectively improves the collaborative performance between the floor and the overall vehicle structure. Furthermore, the design of the connection structure between the main module and the expansion module allows for stress reduction between them when relative movement occurs, thanks to the coordinated movement of the movable shaft. This enhances the stability of the entire floor structure. In addition, this floor utilizes carbon fiber composite materials (carbon fiber panels) in the high-speed rail vehicle flooring field. Compared to traditional metal or wood flooring materials, it has higher specific strength and specific modulus, and its weight can be reduced by more than 30%, greatly promoting the lightweighting process of high-speed rail vehicles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Schematic diagram of the cross-sectional structure of the middle AA section;

[0019] Figure 3 This is a schematic diagram of the connecting component structure in this utility model.

[0020] Reference numerals: 1. Main module; 100. Carbon fiber panel; 101. Phenolic core board; 102. Plywood; 2. Expansion module; 3. Connection port; 4. Connector; 401. Movable shaft; 402. Sealing strip. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This invention further illustrates a specific implementation of a carbon fiber floor structure for high-speed trains, overcoming the shortcomings of existing high-speed train floor structures. While the overall structural strength of the floor is high, its specific modulus is low, and its overall weight is also large, undoubtedly increasing the weight of the entire train, leading to a greater load and energy consumption. Furthermore, the existing floor structures have a simple splicing structure, making stress relief difficult and affecting the overall quality of the floor structure. This new floor structure combines plywood bonding with mechanical connections, ensuring the reliability and stability of the overall floor connection while avoiding stress concentration problems that may occur with traditional connection methods, effectively improving the collaborative performance between the floor and the overall train body structure. This invention's carbon fiber floor structure for high-speed trains is not limited to the description in the following embodiments.

[0022] Example 1:

[0023] This embodiment provides a carbon fiber floor structure for high-speed trains, such as... Figure 1-3 As shown, it includes a main module 1 and an expansion module 2. There are multiple main modules 1. Two adjacent main modules 1 are glued together by plywood 102. The expansion module 2 is set at the end of the main module 1 and is used to expand the main module 1. The main module 1 and the expansion module 2 are movably connected by connectors 4. The main module 1 includes a phenolic core board 101 and a carbon fiber panel 100. The carbon fiber panel 100 covers the upper and lower surfaces of the phenolic core board 101.

[0024] Specifically, such as Figure 2 As shown, in order to ensure that the plywood 102 has a higher external consistency when connecting two adjacent main modules 1, in this embodiment, the plywood 102 is located between the upper and lower carbon fiber panels 100 in the main module 1, and the thickness of the plywood 102 is the same as the thickness of the phenolic core board 101. This can make the surface of all main modules 1 flat and consistent after they are connected.

[0025] Specifically, the plywood 102 has a thickness of 17.1 mm, and the carbon fiber panel 100 has a thickness of 1.2 mm.

[0026] By adopting the above technical solution:

[0027] The floor uses a combination of plywood 102 bonding and mechanical connection, which ensures the reliability and stability of the overall connection of the floor and avoids the stress concentration problem that may be caused by traditional connection methods, effectively improving the collaborative performance of the floor and the overall vehicle structure.

[0028] Example 2

[0029] Based on Embodiment 1, in order to realize the movable connection between the main module 1 and the expansion module 2, the corresponding positions of the main module 1 and the expansion module 2 are provided with connection ports 3, and the connector 4 is movably assembled in the connection port 3.

[0030] Specifically, such as Figure 3 As shown, in order to achieve the movable connection between the main module 1 and the expansion module 2, in this embodiment, the two ends of the connector 4 are rotatably inserted with movable shafts 401, and the ends of the movable shafts 401 are inserted into the inner wall of the connection port 3. In this way, when there is relative movement between the main module 1 and the expansion module 2, the stress generated between the main module 1 and the expansion module 2 can be reduced by the cooperation of the movable shafts 401, thereby improving the stability of the entire floor structure.

[0031] Specifically, such as Figure 3As shown, in order to ensure good mobility at both ends of the connector 4, in this embodiment, the two ends of the connector 4 adopt a semi-circular structure, so that when there is relative movement between the main module 1 and the expansion module 2, the connector 4 can better cooperate to rotate.

[0032] Specifically, such as Figure 3 As shown, since the two ends of the connector 4 adopt a semi-circular structure, there will be a certain hollow area on the top. In order to avoid dust accumulation in the hollow area, in this embodiment, a sealing strip 402 is provided on the upper part of both ends of the connector 4. The upper surface of the sealing strip 402 adopts a horizontal structure, and the lower part adopts an arc-shaped structure that fits the connector 4. The sealing strip 402 is elastic, which can effectively prevent dust accumulation in the hollow area of ​​the connector 4.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A carbon fiber floor structure for high-speed trains, characterized in that: include: The main body module (1) is provided in multiple ways, and two adjacent main body modules (1) are glued together by plywood (102); An extension module (2) is disposed at the end of the main module (1) and is used to extend the main module (1); The main module (1) and the expansion module (2) are movably connected by a connector (4). The main module (1) includes a phenolic core board (101) and a carbon fiber panel (100). The carbon fiber panel (100) covers the upper and lower surfaces of the phenolic core board (101).

2. The carbon fiber floor structure for high-speed trains according to claim 1, characterized in that: The plywood (102) is located between the upper and lower carbon fiber panels (100) in the main module (1), and the thickness of the plywood (102) is the same as the thickness of the phenolic core board (101).

3. The carbon fiber floor structure for high-speed trains according to claim 2, characterized in that: The plywood (102) has a thickness of 17.1 mm, and the carbon fiber panel (100) has a thickness of 1.2 mm.

4. The carbon fiber floor structure for high-speed trains according to claim 1, characterized in that: The main module (1) and the expansion module (2) have corresponding connection ports (3), and the connector (4) is movably assembled in the connection port (3).

5. The carbon fiber floor structure for high-speed trains according to claim 4, characterized in that: The connector (4) has a movable shaft (401) rotatably inserted at both ends. The end of the movable shaft (401) is inserted into the inner wall of the connector (3). In this way, when there is relative movement between the main module (1) and the expansion module (2), the stress generated between the main module (1) and the expansion module (2) can be reduced by the cooperation of the movable shaft (401), thereby improving the stability of the entire floor structure.

6. The carbon fiber floor structure for high-speed trains according to claim 5, characterized in that: The connector (4) has a semi-circular structure at both ends, so that when there is relative movement between the main module (1) and the expansion module (2), the connector (4) can better cooperate to rotate.

7. A carbon fiber floor structure for high-speed trains according to claim 6, characterized in that: The connector (4) has a sealing strip (402) at the upper position of both ends. The upper surface of the sealing strip (402) is horizontal and the lower part is an arc-shaped structure that fits the connector (4). The sealing strip (402) is elastic.

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