The train and its beam components

Abstract

This invention discloses a train and its crossbeam assembly. The crossbeam assembly includes a crossbeam comprising an integrally formed crossbeam body and two crossbeam cover plates. The crossbeam body includes two parallel main sections and a connecting section between the two main sections. The main sections are U-shaped open structures, and the connecting section is a rectangular frame structure with two opposite long plates connected to the top ends of opposite side walls of the two main sections. The two crossbeam cover plates are respectively connected to the top ends of the two main sections to seal the corresponding open sections. The crossbeam body is made of carbon fiber composite material. This crossbeam assembly has high fatigue strength and is lightweight.

Description

Technical Field

[0001] The invention relates to the technical field of trains, in particular to a train and a crossbeam component thereof. Background Art

[0002] Taking the maglev train as an example, the crossbeam component is a key load-bearing component of the vehicle, connected to the longitudinal beam and the electromagnet module, and transmits the force between the vehicle body and the electromagnet through the secondary suspension component. The crossbeam component mainly bears the longitudinal traction braking force, lateral guiding force, vertical suspension force and the weight of the maglev train. Under complex load conditions, the fatigue strength of the crossbeam component becomes a major concern.

[0003] At present, the crossbeam components used in maglev trains are mainly made of aluminum alloy. Specifically, the crossbeam is machined through aluminum alloy extrusion profiles, and the bolster bracket is machined through cast aluminum alloy. The two are connected by rivets after machining. Currently, the scrap rate of aluminum alloy profiles and castings is high, and the fatigue reliability of the final crossbeam component is poor and the weight is high, which is not conducive to the development demand of lightweight maglev trains.

[0004] Similar problems exist with beam formation for other types of trains.

[0005] In view of this, how to improve the beam composition of existing trains so that they have higher fatigue strength and lighter weight to meet the demand for lightweight development is a technical problem that technical personnel in this field currently need to solve. Summary of the invention

[0006] The object of the present invention is to provide a train and a crossbeam assembly thereof, wherein the crossbeam assembly has high fatigue strength and is light in weight.

[0007] In order to solve the above technical problems, the present invention provides a crossbeam composition of a train, including a crossbeam, wherein the crossbeam includes an integrally formed crossbeam body and two crossbeam cover plates, the crossbeam body includes two main body parts arranged parallel to each other and a connecting part arranged between the two main body parts, the main body part is an open structure with a U-shaped cross section, and the connecting part is a rectangular frame plate structure, and its two opposite long plates are respectively connected to the top ends of the two side walls opposite to the two main body parts; the two crossbeam cover plates are respectively connected to the top ends of the two main body parts, for sealing the openings corresponding to the main body parts; the crossbeam body is a crossbeam body made of carbon fiber composite material.

[0008] The invention provides a train crossbeam composition, wherein the crossbeam comprises a crossbeam body and two crossbeam covers, wherein the crossbeam body is integrally formed, comprising two parallel main body parts with U-shaped cross-sections, the two main body parts are connected by a connecting part of a rectangular frame structure, and the two crossbeam covers are respectively used to seal the upper end openings of the two main body parts, and the crossbeam body is made of carbon fiber composite materials. The use of carbon fiber composite materials to make the crossbeam body can improve the fatigue strength of the crossbeam composition, so that it has higher strength and deformation resistance, higher corrosion resistance and noise reduction performance, and can greatly reduce the weight of the crossbeam composition; at the same time, the crossbeam body of the crossbeam is an open structure, which is convenient for the assembly of related mechanical connectors inside the crossbeam.

[0009] The crossbeam composition of the train as described above also includes a bolster bracket, which is fixed between the two main parts. The bolster bracket is in a rectangular frame structure, and the top wall surface of the bolster bracket is fixed to the bottom wall surface of the connecting part.

[0010] In the crossbeam composition of the train as described above, the bolster bracket is a bolster bracket made of carbon fiber composite material, and the bolster bracket and the crossbeam body are an integrally formed structure.

[0011] In the crossbeam composition of the train as described above, the bottom edges of the four peripheral walls of the bolster bracket all extend outward to form extended wall portions, wherein the two extended wall portions in the width direction of the crossbeam body are respectively located below the two main body portions.

[0012] The crossbeam composition of the train as described above, wherein the crossbeam cover is a crossbeam cover made of carbon fiber composite material.

[0013] The crossbeam composition of the train as described above, the crossbeam cover has an L-shaped cross section, including a cover body and a bent portion bent downward along one side of the cover body, and the bent portion is fitted and fixed to the outer side wall of the corresponding main body.

[0014] In the above-mentioned train crossbeam composition, the upper end of the inner side wall of the main body is bent inward to form a flange in contact with the cover body surface.

[0015] In the crossbeam composition of the train as described above, the cover plate body is bonded and fixed to the main body.

[0016] The present invention also provides a train, comprising a crossbeam assembly, wherein the crossbeam assembly is any of the crossbeam assemblies described above.

[0017] Since the above-mentioned beam composition has the above-mentioned technical effects, the train including the beam composition also has the same technical effects, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the beam composition in a specific embodiment;

[0019] Figure 2 for Figure 1 A top view of the beam composition shown;

[0020] Figure 3 for Figure 2 Middle AA section view;

[0021] Figure 4 for Figure 2 Middle BB section view.

[0022] Description of reference numerals:

[0023] The crossbeam 100, the crossbeam body 110, the main body 111, the flange 1111, the connecting portion 112, the crossbeam cover plate 120, the cover plate body 121, the bending portion 122,

[0024] The bolster bracket 200 includes an extending wall portion 210 . DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] For ease of understanding and concise description, the following text takes the maglev train as an example, and explains the maglev train and its crossbeam composition together, and the beneficial effects will not be repeated.

[0027] Please refer to Figures 1 to 4 , Figure 1 It is a structural schematic diagram of the beam composition in a specific embodiment; Figure 2 for Figure 1 A top view of the beam composition shown; Figure 3 for Figure 2 Middle AA section view; Figure 4 for Figure 2 Middle BB section view.

[0028] The directional words inside and outside involved in this article are based on the beam composition. The side close to the center of the beam composition is inside, and correspondingly, the side far from the center of the beam composition is outside. It can be understood that the use of the directional words is only for the convenience of description and understanding, and should not limit the scope of protection.

[0029] The crossbeam of the maglev train is the key load-bearing component of the whole vehicle. It is connected to the longitudinal beam and the electromagnet module, and transmits the force between the car body and the electromagnet through the secondary suspension.

[0030] The crossbeam composition in this embodiment includes a crossbeam 100, which includes an integrally formed crossbeam body 110 and two crossbeam cover plates 120, wherein the crossbeam body 110 includes two main body portions 111 arranged parallel to each other and a connecting portion 112 arranged between the two main body portions 111, each main body portion 111 is an open structure with a U-shaped cross section, and the connecting portion 112 is a rectangular frame plate structure, including two oppositely arranged long plates and two oppositely arranged short plates, and the outer wall edges of the two long plates of the connecting portion 112 are respectively connected to the top ends of the two opposite side walls of the two main body portions 111.

[0031] The two crossbeam covers 120 are respectively connected to the top ends of the two main bodies 111 to block the openings of the corresponding main bodies 111 .

[0032] The crossbeam body 110 in this embodiment is made of carbon fiber composite material. Thus, the crossbeam body 110 has high plasticity and is convenient for one-piece molding. The crossbeam body 110 made of carbon fiber composite material has high fatigue strength, strong deformation resistance, good corrosion resistance and vibration and noise reduction performance, and can also reduce the overall weight of the crossbeam composition to meet the development needs of lightweight.

[0033] In addition, the main body 111 of the beam body 110 is an open structure. During assembly, the relevant mechanical connectors can be installed inside the main body 111 first, and then it can be assembled with the beam cover plate 120. This reduces the difficulty of assembly and improves production efficiency.

[0034] In this embodiment, the cross beam composition also includes a bolster bracket 200, which is fixedly connected between the two main body parts 111. The bolster bracket 200 is an overall rectangular frame structure corresponding to the position of the connecting part 112, and the top wall surface of the bolster bracket 200 is fixedly connected to the bottom wall surface of the connecting part 112.

[0035] Specifically, the bolster bracket 200 includes a top wall portion in the form of a rectangular frame and four peripheral wall portions extending downward from the four sides of the top wall portion, wherein the top wall portion of the bolster bracket 200 corresponds to the connecting portion 112. In the specific design, its short side portion can be set to be narrower than the short plate of the connecting portion 112, and the long side portion can be adapted to the width of the long plate of the connecting portion 112. Of course, it can also be set according to actual needs.

[0036] In a specific solution, the bolster bracket 200 is also made of carbon fiber composite material and is an integrally formed structure with the crossbeam body 110. This can further reduce the weight of the crossbeam assembly and reduce the connection points of the crossbeam assembly, which is beneficial to further improve the fatigue strength of the crossbeam assembly.

[0037] In a more specific solution, the bottom edges of the four peripheral wall portions of the rocker bracket 200 extend outward to form an extended wall portion 210. The two extended wall portions 210 in the width direction of the crossbeam body 110 are respectively located below the two main body portions 111 and fit with the bottom walls of the two main body portions 111.

[0038] The design of the extended wall portion 210 of the bolster bracket 200 can improve the rigidity of the connection portion between the bolster bracket 200 and the crossbeam body 110 .

[0039] In a specific solution, the crossbeam cover 120 is also made of carbon fiber composite material to further reduce the weight of the crossbeam component.

[0040] Among them, the cross-section of the beam cover 120 is designed in an L-shape, including a cover body 121 and a bent portion 122 bent downward along one side of the cover body 121. During assembly, the cover body 121 blocks the opening of the main body 111, and the bent portion 122 is fitted and fixed to the outer wall of the main body 111 to ensure the connection area between the two and ensure the reliability of the connection between the two.

[0041] On the basis that both the cross beam cover plate 120 and the cross beam body 110 are made of carbon fiber composite materials, the two can be fixed by bonding.

[0042] In a specific solution, the upper end of the inner wall of the main body 111 is bent inward to form a flange 1111 that contacts the surface of the cover body 121. When the cover body 121 is fixed to the main body 111, the flange 1111 is fitted and fixed to the cover body 121, which can further increase the connection area between the two and ensure the connection reliability.

[0043] The train and the crossbeam components provided by the present invention are introduced in detail above. The principle and implementation mode of the present invention are explained in this article by using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A crossbeam composition of a maglev train, comprising a crossbeam, characterized in that: The crossbeam includes an integrally formed crossbeam body and two crossbeam cover plates, the crossbeam body includes two main body parts arranged parallel to each other and a connecting part arranged between the two main body parts, the main body part is an open structure with a U-shaped cross section, the connecting part is a rectangular frame plate structure, and its two opposite long plates are respectively connected to the top ends of the two opposite side walls of the two main body parts, and the two crossbeam cover plates are respectively connected to the top ends of the two main body parts, and are used to block the openings of the corresponding main body parts; the crossbeam body is a crossbeam body made of carbon fiber composite material; It also includes a rocker bracket, which is fixed between the two main parts, and the rocker bracket is a rectangular frame structure. The top wall surface of the rocker bracket is fixed to the bottom wall surface of the connecting part; the top wall portion of the rocker bracket corresponds to the connecting part, the short side portion of the top wall portion of the rocker bracket is narrower than the short plate of the connecting part, and the long side portion is adapted to the width of the long plate of the connecting part.

2. The crossbeam composition of the maglev train according to claim 1, characterized in that: The bolster bracket is a bolster bracket made of carbon fiber composite material, and the bolster bracket and the crossbeam body are an integrally formed structure.

3. The crossbeam composition of the maglev train according to claim 2, characterized in that: The bottom edges of the four peripheral walls of the bolster bracket all extend outward to form an extended wall portion, wherein two of the extended wall portions in the width direction of the crossbeam body are respectively located below the two main body portions.

4. The crossbeam composition of a maglev train according to any one of claims 1 to 3, characterized in that: The crossbeam cover plate is a crossbeam cover plate made of carbon fiber composite material.

5. The crossbeam assembly of the maglev train according to claim 4, characterized in that: The cross section of the beam cover is L-shaped, including a cover body and a bent portion bent downward along one side of the cover body, and the bent portion is fitted and fixed to the outer side wall of the corresponding main body.

6. The crossbeam assembly of a maglev train according to claim 5, characterized in that: The upper end of the inner side wall of the main body is bent inward to form a flange in contact with the cover body surface.

7. The crossbeam assembly of a maglev train according to claim 6, characterized in that: The cover plate body is bonded and fixed to the main body.

8. A maglev train, comprising a crossbeam assembly, characterized in that: The crossbeam composition is the crossbeam composition described in any one of claims 1-7.

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