Fixed apron board, vehicle equipment compartment and railway vehicle

Abstract

The utility model discloses a fixed apron board, a vehicle equipment compartment and a railway vehicle, and relates to the technical field of railway vehicles, and the fixed apron board comprises an apron board main body and a plugging structure. Wherein the apron board main body is of a structure integrally formed by a composite material, the apron board main body comprises a cavity structure, and a first sealing plate structure used for being connected with a vehicle body edge beam and a second sealing plate structure used for being connected with a framework edge beam are arranged at the two ends of the cavity structure in the longitudinal direction correspondingly; the blocking structures are arranged at the two ends of the cavity structure in the transverse direction, and the blocking structures are configured to seal an inner cavity of the cavity structure together with the first sealing plate structure and the second sealing plate structure. The fixed apron board solves the problem that an existing aluminum alloy apron board cannot meet the requirements for light weight and performance at the same time.

Description

Technical Field

[0001] This application relates to the field of rail vehicle technology, and in particular to a fixed skirt, vehicle equipment compartment and rail vehicle. Background Technology

[0002] Currently, in order to save interior space and facilitate the installation and configuration of equipment pipelines and lines, rail vehicles (such as urban light rail, passenger trains, EMUs, etc.) are usually equipped with equipment compartments under the vehicle.

[0003] In existing systems, equipment compartment skirts are typically installed by bolting their upper ends to the car body side beams and their lower ends to the frame side beams. However, current equipment compartment skirts are made of aluminum alloy. Although aluminum alloy is a lightweight material, its strength is relatively low. Considering that the equipment compartment needs to accommodate various equipment and withstand complex operating conditions at high speeds, such as vibration and aerodynamic pressure, aluminum alloy skirts are prone to structural deformation under these conditions, limiting their service life. Furthermore, due to the poor sealing of aluminum alloy skirts, it is impossible to ensure a clean and dry internal environment. In the train operating environment, dust and water can enter the skirt, causing damage to the equipment and affecting the stability and safety of the equipment compartment.

[0004] Therefore, how to avoid the inability of existing aluminum alloy skirting panels to simultaneously meet the requirements of lightweighting and performance is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide a fixed skirt, vehicle equipment compartment and rail vehicle that solves the problem that existing aluminum alloy skirts cannot simultaneously meet the requirements of lightweight and performance.

[0006] To achieve the above objectives, this application provides a fixed skirt board, comprising:

[0007] The main body of the skirt panel is a one-piece structure made of composite materials. The main body of the skirt panel includes a cavity structure. At both ends of the cavity structure along the longitudinal direction, there are a first sealing plate structure for connecting with the side beam of the vehicle body and a second sealing plate structure for connecting with the side beam of the frame.

[0008] A sealing structure is provided at both ends of the cavity structure along the transverse direction. The sealing structure is configured to seal the inner cavity of the cavity structure with the first sealing plate structure and the second sealing plate structure.

[0009] In some embodiments, the first sealing plate structure includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate being connected at an interface to form an installation interface for bolt mounting.

[0010] In some embodiments, the mounting interface is provided with a bushing, the bushing having a T-shaped structure, the outer wall of the bushing being fastened to the inner wall of the mounting interface, and the inner wall of the bushing having a threaded surface for engaging with the bolt thread.

[0011] In some embodiments, the angle between the extending directions of the first connecting plate and the second connecting plate and the extending direction of the cavity structure is less than 90 degrees.

[0012] In some embodiments, the second sealing plate structure includes a third connecting plate and a fourth connecting plate, the third connecting plate and the fourth connecting plate are connected at a joint, and the extension direction of both the third connecting plate and the fourth connecting plate is the same as the extension direction of the cavity structure.

[0013] In some embodiments, the cavity structure includes at least two spaced-apart inner cavities, and the sealing structure includes at least two sealing fillers, which are fitted into the corresponding inner cavities through the openings of the inner cavities.

[0014] In some embodiments, the sealing structure further includes a plug plate connected to at least two sealing fillers and fixed at the openings of at least two cavities of the cavity structure.

[0015] In some embodiments, at least two inner cavities of the cavity structure are provided with grooves, and the blocking plate is fixed in the grooves so that the blocking plate does not protrude from the cavity structure.

[0016] This application also provides a vehicle equipment compartment, including any of the aforementioned fixed skirts.

[0017] This application also provides a rail vehicle including the vehicle equipment compartment of any of the above.

[0018] Compared to the aforementioned background technology, the fixed skirt provided in this application embodiment includes a skirt body and a sealing structure. The skirt body is a one-piece molded composite material structure, comprising a cavity structure. The cavity structure has a first sealing plate structure for connection to the vehicle body side beam and a second sealing plate structure for connection to the frame side beam at its longitudinal ends. The sealing structures are located at both transverse ends of the cavity structure and are configured to seal the inner cavity of the cavity structure with the first and second sealing plate structures.

[0019] The beneficial effects of this fixed skirt board design mainly include:

[0020] On the one hand, because the main body of the skirt panel is a one-piece molded composite material structure, this structure has a lighter weight, higher strength, and higher rigidity compared to traditional spliced ​​or split aluminum alloy skirt panel structures. Specifically, the one-piece molded composite material can evenly distribute stress throughout the entire skirt panel body, reducing stress concentration problems caused by weak connection points. As a result, during train operation, the skirt panel can better withstand various external forces such as aerodynamic forces and vibrations, reducing the risk of deformation or damage to the skirt panel, thus achieving a balance between lightweight, performance, and service life requirements.

[0021] On the other hand, the cavity structure is equipped with a first sealing plate structure connected to the car body side beam and a second sealing plate structure connected to the frame side beam at both ends along the longitudinal direction. Furthermore, sealing structures are located at both ends of the cavity structure along the transverse direction, working together with the sealing plate structures to seal the inner cavity. This sealing design effectively prevents dust, water, and other impurities from entering the cavity. In this way, in the train operating environment, the excellent sealing performance ensures the cleanliness and dryness of the interior environment of the skirt panel, preventing dust from causing wear to the internal structure or equipment of the skirt panel and preventing water from entering the skirt panel, leading to rust, electrical short circuits, etc., thus ensuring the normal operation of the skirt panel and related components. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a front view of the fixed skirt board in an embodiment of this application;

[0024] Figure 2 This is a side view of the fixed skirt panel in an embodiment of this application;

[0025] Figure 3 for Figure 1 Assembly diagram of the middle bushing;

[0026] Figure 4 for Figure 1 Assembly diagram of the central sealing structure.

[0027] in:

[0028] 1-Skirt panel main body;

[0029] 11-Cavity structure, 111-Inner cavity, 112-Baffle;

[0030] 12-First sealing plate structure, 121-First connecting plate, 122-Second connecting plate, 123-Mounting interface;

[0031] 13-Second sealing plate structure, 131-Third connecting plate, 132-Fourth connecting plate;

[0032] 2-Sealing structure, 21-Sealing filler, 22-Blocking plate;

[0033] 3-Bushing. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] It should be noted that the directional terms such as "upper end," "lower end," "left side," and "right side" mentioned below are defined based on the accompanying drawings in the instruction manual.

[0037] Please refer to Figures 1 to 4 , Figure 1 This is a front view of the fixed skirt board in an embodiment of this application; Figure 2 This is a side view of the fixed skirt panel in an embodiment of this application; Figure 3 for Figure 1 Assembly diagram of the middle bushing; Figure 4 for Figure 1 Assembly diagram of the central sealing structure.

[0038] The fixed skirt provided in this application embodiment includes a skirt body 1 and a sealing structure 2.

[0039] The main body of the skirt panel 1 is a one-piece structure made of composite materials. For example, the main body of the skirt panel 1 can be made of carbon fiber (or glass fiber) material through pultrusion molding. In this way, the weight can be reduced by 30% compared to the original aluminum alloy fixed skirt panel, and the production cost can be reduced.

[0040] The main body of the skirt panel 1 includes a cavity structure 11. The cavity structure 11 has a first sealing plate structure 12 for connecting with the side beam of the vehicle body and a second sealing plate structure 13 for connecting with the side beam of the frame, respectively, at both ends along the longitudinal direction. At the same time, the cavity structure 11 can form a multi-cavity structure through partitions 112 (or internal ribs), which not only achieves weight reduction, but also makes the skirt structure more stable.

[0041] The sealing structure 2 is located at both ends of the cavity structure 11 in the transverse direction. The sealing structure 2 is configured to seal the inner cavity 111 of the cavity structure 11 with the first sealing plate structure 12 and the second sealing plate structure 13.

[0042] It should be noted that the above longitudinal direction refers to the length direction of the cavity structure 11 (or as...). Figure 2 The extension direction of the cavity structure 11 shown), the transverse direction refers to the width direction of the cavity structure 11 (or as shown in the figure). Figure 1 (The horizontal direction shown).

[0043] In terms of lightweighting and structural strength, the main body 1 of the skirt panel is a one-piece molded composite material structure. Compared with traditional spliced ​​or split aluminum alloy skirt panel structures, this structure has a lighter weight and higher strength and stiffness. Specifically, the one-piece molded composite material can evenly distribute stress throughout the entire main body 1 of the skirt panel, reducing stress concentration problems caused by weak joints. As a result, during train operation, the skirt panel can better withstand various external forces such as aerodynamic forces and vibrations, reducing the risk of deformation or damage to the skirt panel. Thus, the skirt panel meets the requirements of lightweighting, performance, and service life.

[0044] In terms of sealing performance, the cavity structure 11 is provided with a first sealing plate structure 12 connected to the side beam of the car body and a second sealing plate structure 13 connected to the side beam of the frame at both ends along the longitudinal direction. The sealing structure 2 is located at both ends of the cavity structure 11 along the transverse direction, working together with the sealing plate structures to seal the inner cavity 111 of the cavity structure 11. This sealing design effectively prevents dust, water, and other impurities from entering the cavity. Thus, in the train operating environment, good sealing performance ensures the cleanliness and dryness of the interior environment of the skirt panel, preventing dust from causing wear to the internal structure or equipment of the skirt panel and preventing water from entering the skirt panel, leading to rust, electrical short circuits, etc., thereby ensuring the normal operation of the skirt panel and related components.

[0045] In some embodiments, the first sealing plate structure 12 includes a first connecting plate 121 and a second connecting plate 122, the first connecting plate 121 and the second connecting plate 122 are connected to form an installation interface 123 for bolt installation.

[0046] In this way, a joint plate structure is formed at the first (upper) end of the cavity structure 11 along the longitudinal direction. The joint is completed by two layers of sealing plate structure, avoiding the situation of plate butt joint at the top of the cavity structure 11 and reducing the risk of cracks or gaps forming here.

[0047] In some embodiments, the mounting interface 123 is provided with a bushing 3, which has a T-shaped structure. The outer wall of the bushing 3 is fastened to the inner wall of the mounting interface 123, and the inner wall of the bushing 3 is provided with a threaded surface for engaging with the bolt thread.

[0048] In this embodiment, the mounting interface 123 adopts a method of bonding a stainless steel bushing 3. This structure is mainly to prevent the bolt threads from damaging the skirt body 1.

[0049] In some embodiments, the angle between the extending directions of the first connecting plate 121 and the second connecting plate 122 and the extending direction of the cavity structure 11 is less than 90 degrees.

[0050] It should be noted that an angle of less than 90 degrees provides a degree of flexibility in installation and adjustment. Specifically, when connecting the skirt panel to the car body side beams and frame side beams, the inclined connecting plate can accommodate limitations in installation space or minor deviations in the connection position, facilitating operation by installers and improving installation convenience and efficiency. Furthermore, during train inspection or maintenance, if the skirt panel needs to be disassembled or reinstalled, this inclined connecting structure allows for relatively easy disassembly and reassembly, providing convenience for maintenance work.

[0051] In some embodiments, the second sealing plate structure 13 includes a third connecting plate 131 and a fourth connecting plate 132, the third connecting plate 131 and the fourth connecting plate 132 are connected at a joint, and the extension directions of the third connecting plate 131 and the fourth connecting plate 132 are the same as the extension direction of the cavity structure 11.

[0052] In this way, a joint plate structure is formed at the second (lower) end of the cavity structure 11 along the longitudinal direction. The joint is completed by two layers of sealing plate structure, avoiding the situation of plate butt joint at the bottom of the cavity structure 11, and reducing the risk of cracks or gaps forming here.

[0053] Compared to the method of butt jointing at the bottom of the skirt panel, the composite fiberboard is overlapped at the bottom and top of the skirt panel. This allows the composite fiberboard to have a certain overlap length at both the bottom and top of the skirt panel and complete the joint. This avoids the risk of cracks during vehicle operation caused by gaps formed by butt joints.

[0054] In some embodiments, the skirt body 1 may include an inner profile (also called an inner skin) and an outer profile (also called an outer skin), so that the skirt body 1 can adopt a double-layer profile and be integrally formed by pultrusion.

[0055] In some embodiments, the cavity structure 11 includes at least two spaced-apart inner cavities 111, and the sealing structure 2 includes at least two sealing fillers 21, which are fitted into the corresponding inner cavities 111 through the openings of the inner cavities 111.

[0056] For example, the cavity structure 11 can form three spaced-apart cavities 111 through partitions 112 (or internal ribs). The single-sided sealing structure 2 includes three sealing fillers 21, which are embedded in the three cavities 111 one by one. Of course, depending on actual needs, the sealing fillers 21 can be foam fillers, which can be fixed to the inner side of the corresponding cavity opening by adhesive bonding.

[0057] In some embodiments, the sealing structure 2 further includes a blocking plate 22, which is connected to at least two sealing fillers 21 and is fixed at the openings of at least two inner cavities 111 of the cavity structure 11.

[0058] The aforementioned blocking plate 22 can be made of aluminum plate, or it can be replaced with a plate of other materials or sealed with resin blocks.

[0059] During assembly, along one transverse end of the cavity structure 11, sealing fillers 21 are first bonded to the inner side of each cavity opening. Then, sealing plates 22 (which can be thin aluminum plates) are fixed to the outer side of each sealing filler 21 by bonding. The sealing method is the same at the other transverse end of the cavity structure 11. In this way, the transverse end of the fixed skirt plate can be sealed to prevent water and other impurities from entering the profile cavity.

[0060] In addition, at least two inner cavities 111 of the cavity structure 11 are provided with grooves at their openings, and the blocking plate 22 is fixed in the grooves so that the blocking plate 22 does not protrude from the cavity structure 11.

[0061] For example, the depth of the groove can be the same as the thickness of the blocking plate 22, so that after the blocking plate 22 is installed, the outer plane of the blocking plate 22 is flush with the outer wall of the cavity structure 11.

[0062] This design ensures that the blocking plate 22, after installation, is flush with the outer wall of the cavity structure 11, resulting in a smooth and even overall appearance for the fixed skirt and preventing unevenness caused by the protruding thickness of the blocking plate 22. Furthermore, during high-speed train operation, the smooth outer surface of the skirt helps reduce air resistance and airflow noise. If the outer plane of the blocking plate 22 is not flush with the outer wall of the cavity structure 11 after installation, airflow vortices and noise may be generated during train operation, affecting the train's aerodynamic performance. The flush design allows airflow to pass more smoothly over the skirt surface, reducing air resistance and thus improving train operating efficiency and comfort.

[0063] In addition, when the blocking plate 22 is installed flush with the outer wall of the cavity structure 11, it can achieve a better sealing effect and prevent dust, water and other impurities from entering the cavity through the gap between the blocking plate 22 and the cavity structure 11.

[0064] The vehicle equipment compartment provided in this application includes the fixed skirt described in the above specific embodiments.

[0065] The rail vehicle provided in this application includes the vehicle equipment compartment described in the above specific embodiments.

[0066] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0067] The fixed skirt, vehicle equipment compartment, and rail vehicle provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A stationary apron, characterized in that The application relates to a fixed skirt plate for a vehicle equipment compartment. The fixed skirt plate comprises a skirt plate body and a sealing structure. The skirt plate body is integrally formed by a composite material, and comprises a cavity structure.

2. The fixed apron of claim 1, wherein, The cavity structure is provided with a first sealing plate structure and a second sealing plate structure at two longitudinal ends of the cavity structure.

3. The fixed apron of claim 2, wherein, The sealing structure is arranged at two transverse ends of the cavity structure.

4. The fixed apron of claim 2, wherein, The sealing structure is configured to seal the inner cavities of the cavity structure together with the first sealing plate structure and the second sealing plate structure.

5. The fixed apron of claim 1, wherein, The first sealing plate structure comprises a first connecting plate and a second connecting plate.

6. The fixed apron according to any one of claims 1 to 5, wherein, The first connecting plate and the second connecting plate are connected together and form a mounting interface for bolt mounting.

7. The fixed apron of claim 6, wherein, A bushing is arranged in the mounting interface.

8. The fixed apron of claim 7, wherein, The bushing is in a T-shaped structure.

9. A vehicle equipment compartment, characterized in that An outer wall of the bushing is tightly matched with an inner wall of the mounting interface.

10. A rail vehicle, characterized by An inner wall of the bushing is provided with a threaded surface for threaded cooperation with a bolt. The extending directions of the first connecting plate and the second connecting plate are less than 90 degrees with the extending direction of the cavity structure. The second sealing plate structure comprises a third connecting plate and a fourth connecting plate. The third connecting plate and the fourth connecting plate are connected together. The extending directions of the third connecting plate and the fourth connecting plate are the same with the extending direction of the cavity structure. The cavity structure comprises at least two spaced inner cavities. The sealing structure comprises at least two sealing fillers. The sealing fillers are embedded in the corresponding inner cavities through cavity openings of the inner cavities. The sealing structure further comprises a sealing plate. The sealing plate is connected with the at least two sealing fillers. The sealing plate is fixed at the cavity openings of the at least two inner cavities of the cavity structure. The cavity openings of the at least two inner cavities of the cavity structure are provided with grooves. The sealing plate is fixed in the grooves, so that the sealing plate does not protrude from the cavity structure. The application further relates to a vehicle equipment compartment comprising the fixed skirt plate. The application further relates to a vehicle equipment compartment comprising the vehicle equipment compartment.

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