Novel high-strength light-weight floor suitable for railway vehicle

Abstract

The utility model provides a novel high-strength light-weight floor suitable for a railway vehicle, and belongs to the technical field of railway vehicles. The upper plane of the frame is fixedly connected with an iron floor, damping slurry is arranged below the iron floor, the upper portion of the iron floor is connected with a floor beam in a supporting mode through an overhead structure, the upper portion of the floor beam is fixedly connected with a composite floor, a floor anti-skid layer is arranged on the upper surface of the composite floor, and sound insulation and heat preservation materials are arranged between the iron floor and the floor beam. According to the novel floor, the total weight of a vehicle is effectively reduced, the performance in the aspects of strength, skid resistance, wear resistance and the like is good, the good sound insulation effect and the good corrosion resistance are achieved, and the overall quality and the using effect of the railway vehicle floor are comprehensively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail vehicles, and in particular relates to a high-strength and lightweight new floor suitable for rail vehicles. Background Art

[0002] With the rapid development of rail transit, the operating functions of rail vehicles are constantly increasing. However, it is very difficult to expand these functions when the axle weight of the whole vehicle is limited. At the same time, the market demand for multi-functional vehicles is becoming increasingly urgent, resulting in an increasingly prominent contradiction between supply and demand. In order to meet market demand, vehicle weight reduction has become an important way to resolve this contradiction. Lightweight design has gradually become the mainstream trend in the development of various vehicle components. As an important part of the whole vehicle, the lightweight design of the floor is particularly critical.

[0003] Traditional floor materials usually use steel or plywood. These materials have high strength, but they are heavy, which is not conducive to achieving the goal of lightweighting the vehicle. In addition, the floor needs to withstand large loads and vibrations, so there are high requirements for its strength and durability. The existing rail vehicle floors have the following problems: 1. The overall weight of the original floor structure is overweight, which limits the functional expansion and performance improvement of the entire vehicle. 2. Traditional plywood has low strength and poor sound insulation. It needs to be used in double layers to meet performance requirements, which also increases the weight of the floor. 3. The original floor structure has poor anti-slip and wear resistance, and an additional anti-slip layer needs to be laid, which increases maintenance costs and complexity. For this reason, designing a new type of high-strength and lightweight floor has become an urgent problem to be solved. Utility Model Content

[0004] Technical problem solved by the utility model: In order to overcome the deficiencies of the prior art, the utility model provides a new type of high-strength and lightweight floor suitable for rail vehicles, which not only has high strength but also has low weight, and is suitable for the lightweight design requirements of modern rail vehicles.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A new type of high-strength and lightweight floor suitable for rail vehicles comprises a frame, an iron floor is fixedly connected to the upper plane of the frame, a damping slurry is arranged under the iron floor, a floor beam is supported and connected to the upper part of the iron floor through an overhead structure, a composite floor is fixedly connected to the upper part of the floor beam, an anti-skid layer is arranged on the upper surface of the composite floor, and sound insulation and heat preservation materials are arranged between the iron floor and the floor beam.

[0007] The composite floor comprises an intermediate layer, an upper panel and a lower panel, wherein the intermediate layer is sandwiched between the upper panel and the lower panel, the upper panel is arranged on the upper surface of the intermediate layer, and the lower panel is arranged on the lower surface of the intermediate layer, and the intermediate layer, the upper panel and the lower panel are connected together by a high-performance adhesive or a hot pressing molding process.

[0008] Furthermore, the middle interlayer is made of lightweight material phenolic resin or honeycomb structure material.

[0009] Furthermore, the upper panel and the lower panel are both made of high-strength composite materials.

[0010] Furthermore, the high-strength composite material is made of 6061-T6 aluminum plate or glass fiber reinforced composite material or carbon fiber composite material.

[0011] Wherein, the anti-skid layer of the floor is made of anti-skid floor leather, and the upper surface of the anti-skid floor leather is provided with anti-skid texture or coated with an anti-skid coating.

[0012] Furthermore, the floor anti-slip layer and the composite floor are fixedly connected to the floor beams via floor fixing screws.

[0013] Furthermore, the overhead structure is as follows: a plurality of connection seats are evenly distributed and fixed on the upper part of the iron floor, the upper part of the connection seats supports the floor beams, adjustment pads are clamped between the floor beams and the connection seats, and the floor beams are fixedly connected to the connection seats by floor beam fixing screws.

[0014] Furthermore, the sound insulation and heat preservation material comprises a lower insulation layer and an upper sound insulation layer, the lower insulation layer is made of carbon fiber cotton material, and the upper sound insulation layer is made of sound-absorbing cotton.

[0015] The advantages of this utility model compared with the prior art:

[0016] 1. This solution has significant weight reduction: This new floor adopts high-strength lightweight composite materials and optimized frame structure design, which significantly reduces the weight of the floor. Compared with traditional steel or plywood, the overall weight of the floor is reduced by about 30%, which effectively reduces the total weight of the vehicle and improves energy efficiency and load capacity;

[0017] 2. This solution has enhanced strength and rigidity: The floor is made of high-strength fiber-reinforced composite materials and high-performance phenolic resin materials, ensuring the high strength and high rigidity of the floor. Even with a lightweight design, the floor can still withstand large loads and vibrations, ensuring safety and durability;

[0018] 3. This solution has excellent sound insulation effect: the sound-absorbing cotton filled in the new floor structure has good sound insulation performance, effectively reducing the noise generated during train operation and improving the comfort of passengers;

[0019] 4. This solution has good anti-slip performance: the floor surface has a special anti-slip design, with anti-slip texture or anti-slip coating, which effectively prevents passengers from slipping and improves the safety of the vehicle;

[0020] 5. This solution has excellent wear resistance and anti-corrosion performance: the floor surface is covered with wear-resistant and anti-corrosion materials. After special treatment, it not only extends the service life of the floor, but also enables it to adapt to various complex environments, reducing maintenance frequency and cost;

[0021] 6. This solution is easy to install: the new floor adopts a sheet-mounted aluminum alloy floor beam structure, which is fixed by bolts, and the installation process is simple and efficient. The overhead structure is used between the aluminum alloy support beam and the iron floor, and space is reserved for the layout of pipelines and wiring harnesses, which facilitates the layout of the vehicle lines and pipelines;

[0022] 7. The floor design in this solution adopts a modular solution, which is convenient for quick installation and disassembly, reduces the difficulty of maintenance and replacement, and improves operational efficiency;

[0023] 8. The overall performance of this solution is improved: it not only performs well in terms of weight, strength, anti-slip and wear resistance, but also has good sound insulation and anti-corrosion properties, which comprehensively improves the overall quality and use effect of rail vehicle floors. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the floor structure in the utility model;

[0025] Figure 2 For this utility model Figure 1 Schematic diagram of the AA structure in . DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0028] See also Figure 1-2 , describe the embodiments of the present utility model in detail.

[0029] Example: A new type of high-strength and lightweight floor for rail vehicles, see Figure 1-2 As shown, there is a frame 1, the upper plane of the frame 1 is fixedly connected to an iron floor 2, a damping slurry 12 is provided under the iron floor 2, the upper part of the iron floor 2 is supported and connected to a floor beam 4 through an overhead structure, the upper part of the floor beam 4 is fixedly connected to a composite floor 5, the upper surface of the composite floor 5 is provided with a floor anti-slip layer 6, and sound insulation material 9 is provided between the iron floor 2 and the floor beam 4.

[0030] In this embodiment, the floor of the rail vehicle adopts a composite structure with improved comprehensive performance. It not only excels in weight, strength, anti-slip and wear resistance, but also has good sound insulation and anti-corrosion properties, which comprehensively improves the overall quality and use effect of the rail vehicle floor.

[0031] In a specific embodiment: the composite floor 5 includes an intermediate layer 5-1, an upper panel 5-2 and a lower panel 5-3, the intermediate layer 5-1 is sandwiched between the upper panel 5-2 and the lower panel 5-3, the upper panel 5-2 is arranged on the upper surface of the intermediate layer 5-1, and the lower panel 5-3 is arranged on the lower surface of the intermediate layer 5-1; the intermediate layer 5-1, the upper panel 5-2 and the lower panel 5-3 are connected together by a high-performance adhesive or a hot pressing molding process to ensure the stability and reliability of the overall structure.

[0032] In the above structure, the floor is made of high-strength lightweight composite materials and combined with an optimized frame structure design, which significantly reduces the weight of the floor. Compared with traditional steel or plywood, the overall weight of the floor is reduced by about 30%, effectively reducing the total weight of the vehicle and improving energy efficiency and load capacity.

[0033] Preferably, the intermediate interlayer 5 - 1 is made of lightweight material phenolic resin or honeycomb structure material.

[0034] As a further limitation of the above structure, lightweight materials such as polyurethane foam and aluminum honeycomb can be preferred to reduce the overall weight; a simplified honeycomb structure sandwich can be used to reduce the material usage and manufacturing cost to a certain extent while maintaining a good lightweight effect. The honeycomb structure is a lightweight and high-strength structure, usually made of aluminum or composite materials, with a honeycomb hollow structure in the middle, which has excellent mechanical properties and weight reduction effects. In some applications that require higher strength and sound insulation, a double-layer design with a layer of lightweight material sandwiched between the upper and lower layers of composite materials can be used to achieve high strength and shock-absorbing and sound-insulating effects.

[0035] In a specific embodiment: the upper panel 5-2 and the lower panel 5-3 are both made of high-strength composite materials and have the characteristics of high strength and high rigidity.

[0036] Preferably, the high-strength composite material is made of 6061-T6 aluminum plate or glass fiber reinforced composite material or carbon fiber composite material.

[0037] In the above scheme, although the strength and rigidity of glass fiber are slightly lower, it is light in weight and low in cost, and can still meet the use requirements of most rail vehicle floors. If the cost needs to be further reduced, high-strength aluminum alloy materials can be selected as floor materials. Although they are slightly heavier than composite materials, they have better strength and durability.

[0038] In a specific embodiment: the floor anti-slip layer 6 is made of anti-slip floor leather, and the upper surface of the anti-slip floor leather is provided with anti-slip texture or coated with an anti-slip coating.

[0039] Through the above structure, an anti-slip design is adopted on the floor surface, such as adding an anti-slip texture or applying an anti-slip coating, to improve safety. Among them, the anti-slip coating is a special material coated on the floor surface, which has anti-slip properties and can effectively prevent slipping and improve safety.

[0040] In addition, the floor surface can also be treated for durability, wear resistance and anti-corrosion treatment to extend the service life and adapt to the needs of different environments. The wear-resistant material used is a material with high wear resistance, which can be used for a long time in a high friction environment without being easily worn; the anti-corrosion material is a material with corrosion resistance, which can maintain stability for a long time in a corrosive environment and extend the service life of equipment and structures.

[0041] In a specific implementation manner: the floor anti-slip layer 6 and the composite floor 5 are fixedly connected to the floor beam 4 via floor fixing screws 7 .

[0042] In a specific embodiment: the overhead structure is: a plurality of connecting seats 3 are evenly fixed on the upper part of the iron floor 2, the upper part of the connecting seat 3 supports the floor beam 4, an adjustment pad 13 is clamped between the floor beam 4 and the connecting seat 3, and the floor beam 4 is fixedly connected to the connecting seat 3 by the floor beam fixing screws 8.

[0043] In the above structure, the floor beam structure is a skeleton structure composed of metal, wood and other materials through welding or bonding, which is used to support and fix the composite floor. Preferably, the floor beam 4 adopts a sheet-mounted aluminum alloy floor beam structure, which is fixed by bolts, and the installation process is simple and efficient. An overhead structure is adopted between the aluminum alloy support beam and the iron floor, and space is reserved for arranging pipelines and wiring harnesses, which facilitates the layout requirements of the vehicle lines and pipelines.

[0044] In the above structure, the connection between composite material layers can be achieved by mechanical connection and bonding to improve the connection strength and stability while reducing manufacturing complexity and cost. The modular floor design is adopted to achieve rapid installation and disassembly through standardized connectors, which is convenient for maintenance and replacement and reduces the maintenance cost of the whole vehicle.

[0045] In a specific implementation, the sound insulation material 9 includes a lower insulation layer 10 and an upper sound insulation layer 11, the lower insulation layer 10 is made of carbon fiber cotton material, and the upper sound insulation layer 11 is made of sound-absorbing cotton.

[0046] Through the above structure, the phenolic resin filled in the new floor structure has good thermal insulation performance and sound insulation performance, which effectively reduces the noise generated during the operation of the train and improves the comfort of passengers.

[0047] In summary, the comprehensive performance of this new type of floor is improved. It not only excels in weight, strength, anti-slip and wear resistance, but also has good sound insulation and anti-corrosion properties. It comprehensively improves the overall quality and use effect of rail vehicle floors, solves many problems in the existing technology, and significantly improves the overall performance and user experience of rail vehicles.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-strength, lightweight new floor suitable for rail vehicles, comprising a frame (1), an iron floor (2) fixedly connected to the upper plane of the frame (1), a damping slurry (12) disposed below the iron floor (2), characterized in that: The upper part of the iron floor (2) is supported and connected to a floor beam (4) via an overhead structure, the upper part of the floor beam (4) is fixedly connected to a composite floor (5), the upper surface of the composite floor (5) is provided with a floor anti-slip layer (6), and sound insulation material (9) is provided between the iron floor (2) and the floor beam (4).

2. The high-strength and lightweight new floor suitable for rail vehicles according to claim 1, characterized in that: The composite floor (5) comprises an intermediate interlayer (5-1), an upper panel (5-2) and a lower panel (5-3); the intermediate interlayer (5-1) is sandwiched between the upper panel (5-2) and the lower panel (5-3); the upper panel (5-2) is arranged on the upper surface of the intermediate interlayer (5-1); the lower panel (5-3) is arranged on the lower surface of the intermediate interlayer (5-1); the intermediate interlayer (5-1), the upper panel (5-2) and the lower panel (5-3) are connected together by a high-performance adhesive or a hot pressing molding process.

3. The high-strength and lightweight new floor suitable for rail vehicles according to claim 2, characterized in that: The intermediate interlayer (5-1) is made of lightweight phenolic resin or honeycomb structure material.

4. The high-strength and lightweight new floor suitable for rail vehicles according to claim 2, characterized in that: The upper panel (5-2) and the lower panel (5-3) are both made of high-strength composite materials.

5. The high-strength and lightweight new floor suitable for rail vehicles according to claim 4, characterized in that: The high-strength composite material is made of 6061-T6 aluminum plate or glass fiber reinforced composite material or carbon fiber composite material.

6. The high-strength and lightweight new floor suitable for rail vehicles according to claim 1, characterized in that: The anti-skid floor layer (6) is made of anti-skid floor leather, and the upper surface of the anti-skid floor leather is provided with an anti-skid texture or coated with an anti-skid coating.

7. The high-strength and lightweight new floor suitable for rail vehicles according to claim 1, characterized in that: The floor anti-slip layer (6) and the composite floor (5) are fixedly connected to the floor beam (4) via floor fixing screws (7).

8. The high-strength and lightweight new floor suitable for rail vehicles according to claim 1, characterized in that: The overhead structure comprises: a plurality of connection seats (3) are evenly distributed and fixed on the upper part of the iron floor (2); the upper part of the connection seats (3) supports the floor beam (4); an adjustment pad (13) is clamped between the floor beam (4) and the connection seats (3); and the floor beam (4) is fixedly connected to the connection seats (3) by means of floor beam fixing screws (8).

9. The high-strength and lightweight new floor suitable for rail vehicles according to claim 1, characterized in that: The sound insulation and heat preservation material (9) comprises a lower insulation layer (10) and an upper sound insulation layer (11); the lower insulation layer (10) is made of carbon fiber cotton material, and the upper sound insulation layer (11) is made of sound absorbing cotton material.

10. The high-strength and lightweight new floor suitable for rail vehicles according to claim 1, characterized in that: The floor beam (4) adopts a sheet-mounted aluminum alloy floor beam structure.

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