A sidewall for a rubber-tired rail vehicle

Abstract

This invention provides a sidewall for a rail vehicle with rubber-tired loads. The sidewall is composed of multiple modules, each module including: a first sidewall unit, a second sidewall unit, and a door beam. The door beam is connected at the top position between the first sidewall unit and the second sidewall unit, thereby forming a door together with the door pillars respectively located on the sides of the first sidewall unit and the second sidewall unit. The first sidewall unit and the second sidewall unit are both spliced ​​from multiple profiles and plates, wherein the profiles are lightweight profiles with optimized internal reinforcing rib positions, reducing the number of reinforcing ribs by at least 50%.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail vehicle design, in particular to a rail vehicle side wall for rubber wheel bearing. BACKGROUND

[0002] At present, the side wall of the rail vehicle mainly adopts aluminum alloy profiles, for example, the side wall of some vehicles is welded by side wall window columns, window curtain assemblies and door columns, and the connection between the welded assemblies and the top cover and the chassis is usually achieved by riveting or bolt connection. This structure has complex connection structure, inaccurate size control and limited connection reliability.

[0003] Alternatively, in some existing rail vehicle side wall schemes, the side wall columns are connected with the side wall body, and multiple side wall columns are arranged along the length direction of the side wall body, and the auxiliary air duct is directly formed on the side wall, which has low modularization degree and insufficient lightweight.

[0004] The above aluminum alloy side wall structure in the prior art can be applied to steel wheel urban rail transit vehicles, but it is not very practical for rubber wheel bearing rail vehicles, and cannot meet the requirements of lightweight and reliability at the same time.

[0005] In order to overcome the above-mentioned defects existing in the prior art, the present application provides a modular rail vehicle side wall, which can meet the requirements of strength, stiffness, lightweight, modularization and maintenance of the rail vehicle side wall, and effectively solve various technical problems in the design of the rubber wheel bearing rail vehicle side wall. SUMMARY

[0006] The following gives a brief summary of one or more aspects to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all contemplated aspects, and neither is it intended to identify key or critical elements of all aspects nor to delineate the scope of any or all aspects. Its only purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description given later.

[0007] In order to overcome the above-mentioned defects existing in the prior art, the present application provides a modular rail vehicle side wall, which is composed of multiple modules, each module comprising: a first side wall unit, a second side wall unit and a door beam connected to the top position between the first side wall unit and the second side wall, thereby forming a vehicle door together with the door columns arranged on the side edges of the first side wall unit and the second side wall unit respectively; and the first side wall unit and the second side wall unit are spliced by multiple profiles and plates, wherein the profiles adopt lightweight profiles with at least 50% reduction in the number of internal reinforcing ribs after optimization of the position of the reinforcing ribs.

[0008] In an embodiment, preferably, the profile is internally provided with a welding backing plate at the splicing joint, the welding backing plate is matched with the shape of the inner cavity of the profile, the welding backing plate is provided with a weight-reducing hole and a welding material solution guide groove.

[0009] In an embodiment, preferably, the profile and the plate are spliced to form a window and a wheel cover on the first side wall unit and the second side wall unit respectively, the corners of the window and the wheel cover are respectively provided with a window bevel and a wheel cover bevel.

[0010] In an embodiment, preferably, the window is formed by the door column, the upper cross beam, the window column and the first lower cross beam, wherein the upper cross beam is connected to the top position between the door column and the window column, the lower part of the window is connected to the vehicle chassis through a plurality of lower cross beams; and the wheel cover is arranged below the side wall of the railway vehicle and staggered with the window, formed by a wheel cover upper cross beam and two wheel cover vertical beams, embedded in the plurality of lower cross beams, wherein the door column, the window column and the lower cross beam are all made of the profile.

[0011] In an embodiment, preferably, the side wall column formed by the profile is further arranged on the side wall of the railway vehicle, the side wall column and the window column are connected through the plate on the outer facade of the side wall, and part of the plate is additionally provided with a reinforcing plate at part of the position on the inner facade to increase the connection strength.

[0012] In an embodiment, preferably, the top edges of the door beam and the upper cross beam at the top of the side wall of the railway vehicle and the top cover edge beam of the vehicle are assembled and positioned in a plug-in manner and then connected through welding.

[0013] In an embodiment, preferably, the lower cross beam at the bottom of the side wall of the railway vehicle and the bottom surface of the door column and the bottom frame edge beam of the vehicle are connected through welding and the positions of the inner and outer welds are staggered.

[0014] In an embodiment, preferably, the wheel cover vertical beam is provided with a frame connecting plate, and the side wall column above the wheel cover horizontal beam is welded with a frame connecting seat formed by an L-shaped plate.

[0015] In an embodiment, preferably, the upper cross beam is provided with a C-shaped groove for mounting a control module, the C-shaped groove is connected to the upper cross beam in an intermittent welding manner or is integrally formed with the profile of the upper cross beam.

[0016] In an embodiment, preferably, the plurality of module of the side wall of the railway vehicle located on both sides of the vehicle are arranged in a diagonal opposite manner. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above features and advantages of the present application will be better understood by reading the following detailed description of the embodiments of the present application in conjunction with the drawings, in which:

[0018] Figure 1 is a single-face structure diagram of a side wall of a rail vehicle according to an embodiment of the present application;

[0019] Figure 2 is a modified structure diagram of a profile section according to an embodiment of the present application;

[0020] Figure 3 is a device structure diagram of a transverse profile with added welding backing plates according to an embodiment of the present application;

[0021] Figure 4 is a device structure diagram of a longitudinal profile with added welding backing plates according to an embodiment of the present application;

[0022] Figure 5 is a device structure diagram of a side wall and a reinforcing plate according to an embodiment of the present application;

[0023] Figure 6 is a device structure diagram of an assembly structure between an upper cross beam and a roof side beam according to an embodiment of the present application;

[0024] Figure 7 is a device structure diagram of an assembly structure between a lower cross beam and a chassis side beam according to an embodiment of the present application;

[0025] Figure 8 is a device structure diagram of an assembly structure between a door upright and a chassis side beam according to an embodiment of the present application;

[0026] Figure 9 is a device structure diagram of a structure of a side wall upper frame connecting seat according to an embodiment of the present application;

[0027] Figure 10 is a device structure diagram of a structure of a C-shaped groove on a side wall according to an embodiment of the present application; and

[0028] Figure 11 is a device structure diagram of another side wall module according to an embodiment of the present application.

[0029] For the sake of clarity, the following brief description of the drawings is given:

[0030] 1 first side wall unit

[0031] 1.1 first upper door corner

[0032] 1.2 first door post

[0033] 1.3 first upper cross beam

[0034] 1.4 window mullion

[0035] 1.5 first window stile

[0036] 1.6 side wall header

[0037] 1.7 first side wall post

[0038] 1.8 first wheelhouse upper cross beam

[0039] 1.9 first wheelhouse vertical beam

[0040] 1.10 first wheelhouse mullion

[0041] 1.11 second wheelhouse vertical beam

[0042] 1.12 first lower cross beam

[0043] 1.13 second lower cross beam

[0044] 1.14 reinforcement plate

[0045] 1.15 frame tie plate

[0046] 1.16 first weld backing plate

[0047] 1.17 second weld backing plate

[0048] 1.18 third weld backing plate

[0049] 1.19 fourth weld backing plate

[0050] 1.20 fifth weld backing plate

[0051] 1.21 sixth weld backing plate

[0052] 2 second side wall unit

[0053] 2.1 second upper door corner

[0054] 2.2 second door post

[0055] 2.3 second upper cross beam

[0056] 2.4 window stile

[0057] 2.5 second wheelhouse upper cross beam

[0058] 2.6 second wheelhouse mullion

[0059] 2.7 third wheelhouse vertical beam

[0060] 2.8 first lower cross beam

[0061] 2.9 second lower cross beam

[0062] 2.10 C-channel

[0063] 3 door beam

[0064] 4 roof side rail

[0065] 5 underbody side rail

[0066] 6 third side wall unit

[0067] 7 frame connecting seat DETAILED DESCRIPTION

[0068] The present application will now be described by way of specific embodiments, which should not be construed as in any way limiting the scope of the application. To facilitate the description of the application, the terminology used can be defined as follows: "comprising" means that other steps and / or ingredients which do not affect the end result can also be present. In order to provide for a thorough understanding of the application, numerous specific details are set forth in the following description. The application can be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail since not to unnecessarily obscure the application. In addition, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the application can be practiced without some or all of these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail since not to unnecessarily obscure aspects of the application.

[0069] In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. It is further noted that the terms "comprise" or "comprising" and the like, "include" or "including" or "has" or "having" or "contain" or "containing" when used in this specification and in the following claims, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

[0070] In addition, the use of "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical" and the like herein, are used for convenience in the description of the application and do not necessarily imply an orientation of the device in use. The terms "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical" and the like are used herein for convenience in describing the orientation of the device in the figures. These terms are not intended to imply an orientation of the device in use.

[0071] It is to be understood that, although the terms "first", "second", "third", and the like can be used herein to describe various components, regions, layers and / or sections, these components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one component, region, layer or section from another. Thus, a first component, region, layer or section discussed below could be termed a second component, region, layer or section without departing from the scope of the present application.

[0072] In order to overcome the above-mentioned defects in the prior art, the present application provides a rail vehicle side wall for rubber tire bearing, which can meet the use requirements of rail vehicle side wall such as strength, stiffness, lightweight, modularity and maintenance, and effectively solve various technical problems in the design of rubber tire bearing rail vehicle side wall.

[0073] Figure 1 Figure 1 is a single-face structure schematic diagram of a rail vehicle side wall according to an embodiment of the present application.

[0074] Please refer to Figure 1 The rail vehicle side wall for rubber tire bearing provided by the present application is composed of multiple modules, each module can include: a first side wall unit 1, a second side wall unit 2 and a door beam 3 connected to the top position between the first side wall unit 1 and the second side wall unit 2, thereby forming a vehicle door together with door uprights 1.2 and door uprights 2.2 respectively arranged on the side edges of the first side wall unit 1 and the second side wall unit 2; wherein the first side wall unit 1 and the second side wall unit 2 are both spliced by multiple profiles and plates, wherein the profiles adopt lightweight profiles with at least 50% reduction in the number of internal reinforcing ribs after optimizing the position of internal reinforcing ribs.

[0075] Figure 2 Figure 2 is a schematic diagram of the improved structure of the profile cross section according to an embodiment of the present application.

[0076] As Figure 2 shown, Figure 2 the profile cross section used in the present application is shown above, and the profile cross section of the prior art is shown below. By comparing the two, it can be seen that the profile used in the present application significantly reduces the number of internal reinforcing ribs, at least 50% of the internal reinforcing ribs are reduced, thereby achieving the advantage of lightweight.

[0077] It should be particularly noted that, in addition to the significant reduction in the number of internal reinforcing ribs, the shape structure and arrangement position of the internal reinforcing ribs used in the present application are also the result of simulation design, test detection and optimization, which not only meets the requirements of support strength and stiffness, but also maximizes the weight reduction of the profile, thereby meeting the characteristic requirements of rubber tire bearing.

[0078] Please continue to refer toFigure 1 In a preferred embodiment, the profile and sheet are spliced ​​together to form a window and a wheel arch on the first side wall unit 1 and the second side wall unit 2, respectively. The corners of the window and the wheel arch are respectively provided with window bevels and wheel arch bevels to enhance the structural strength.

[0079] like Figure 1 As shown, in this embodiment, the first side wall unit 1 may include: a first upper door corner 1.1, a first door post 1.2, a first upper horizontal beam 1.3, a window bevel 1.4, a first window post 1.5, a side wall sealing plate 1.6, a first side wall post 1.7, a first wheel cover upper horizontal beam 1.8, a first wheel cover vertical beam 1.9, a first wheel cover bevel 1.10, a second wheel cover vertical beam 1.11, a first lower horizontal beam 1.12, and a second lower horizontal beam 1.13. The second side wall unit 2 may include: a second upper door corner 2.1, a second door post 2.2, a second upper horizontal beam 2.3, a window bevel 1.4, a window post 2.4, a first side wall post 1.7, a second wheel cover upper horizontal beam 2.5, a second wheel cover bevel 2.6, a third wheel cover vertical beam 2.7, a first lower horizontal beam 2.8, and a second lower horizontal beam 2.9.

[0080] The first upper door corner 1.1, the first door pillar 1.2, the second upper door corner 2.1, and the second door pillar 2.2 together form the structure of the car door.

[0081] In this embodiment, components such as doorposts, windowposts, side wallposts, wheel arch upper beams, upper beams, and lower beams can be adopted. Figure 2 The profile cross-section shown above is a lightweight, optimized design. This profile cross-section consists of multiple rectangular cavities, which better adapt to the technical requirements of aluminum profile processing, and its simple structure makes it easy to form. This profile can be integrally extruded, meeting the required strength, riveting, and welding performance requirements. It should be noted that the rectangular cavities here are merely illustrative, intended to clearly demonstrate the possible structure of the lightweight profile used in the sidewall provided by this invention, and are not intended to limit the scope of protection of this invention, nor is a rectangular cavity design necessarily required.

[0082] Furthermore, in a preferred embodiment of the present invention, the profile is provided with a welding pad inside the splice joint, the outline shape of the welding pad matches the inner cavity shape of the profile, and the welding pad is provided with reinforcing ribs inside.

[0083] Figure 3 This is a schematic diagram of a device for adding a welding backing plate to a transverse profile according to an embodiment of the present invention.

[0084] In this embodiment, after the sidewall profiles have undergone lightweight treatment, welding backing plates have been added to ensure the strength and rigidity of the joints, such as... Figure 3As shown, the outline shape of the backing plate is consistent with the cross-section of the profile's inner cavity. The backing plate has a certain thickness and a stepped edge design to form a welding cavity with the profile end. To reduce the weight of the backing plate, a hollow design can be adopted, and reinforcing ribs can be designed for the welding backing plate according to the arrangement of the profile's internal ribs. Simultaneously, a certain depth can be reserved at the profile joint during processing to accommodate the installation of the welding backing plate. In addition, the welding backing plate can be made of aluminum alloy sheet of a certain thickness and has corresponding weight-reducing holes and welding solution guide channels.

[0085] For example, it can be combined Figure 1 , Figure 3 The first welding pad 1.16 shown is arranged at the joint of the first side wall column 1.7, the second welding pad 1.17 is arranged at the joint of the first window column 1.5, and the third welding pad 1.18 is arranged at the joint of the first door column 1.2.

[0086] Figure 4 This is a schematic diagram of a device for adding a welding backing plate to a longitudinal profile according to an embodiment of the present invention.

[0087] Similarly, in Figure 4 In this embodiment, the fourth welding pad 1.19 is arranged at the joint of the first upper crossbeam 1.3, the fifth welding pad 1.20 is arranged at the joint of the first lower crossbeam 1.12, and the sixth welding pad 1.21 is arranged at the joint of the second lower crossbeam 1.13.

[0088] As can be seen, in this preferred embodiment of the invention, corresponding welding backing plates can be provided at the joints of the profiles to ensure the reliability of the welding at the joints. Welding backing plates can also be arranged at the welded joints of other sidewall components to enhance connection reliability while achieving weight reduction.

[0089] Therefore, the rail vehicle sidewall provided by the present invention, through lightweight profile design and the addition of welding pads at the interface, achieves a significant reduction in the overall vehicle weight while reliably ensuring the usability and safety performance of component connection and support strength.

[0090] In a preferred embodiment, the present invention provides a sidewall for a rail vehicle with rubber-tired support. The window is composed of a door post, an upper crossbeam, a window post, and a first lower crossbeam. The upper crossbeam connects the top position between the door post and the window post. The lower part of the window is connected to the vehicle underframe via multiple lower crossbeams. A wheel cover is located below the sidewall of the rail vehicle, offset from the window, and is composed of one upper wheel cover crossbeam and two vertical wheel cover crossbeams, embedded in the multiple lower crossbeams. The door post, window post, and lower crossbeam are of this profile. (See references.) Figure 5 .

[0091] Figure 5This is a schematic diagram of the device structure of the side wall and reinforcing plate according to an embodiment of the present invention.

[0092] Please refer to the reference. Figure 1 and Figure 5 In this embodiment, the first door pillar 1.2, the first upper crossbeam 1.3, the first window pillar 1.5, and the first lower crossbeam 1.12 constitute the window of the first side wall unit 1. The window profile features a glass stop design, eliminating the need for machining and facilitating window glass installation. A window bevel angle 1.4 can be set at the joint angle of the window profile to enhance structural strength. The window of the second side wall unit 2 can adopt the same structure. Understandably, the length and width of the window can be changed by adjusting the length of the profile to meet the design and usage requirements of different vehicle models and cabins.

[0093] At the same time, you can continue to combine references Figure 1 , 5 In this embodiment, the first wheel cover upper crossbeam 1.8, the first wheel cover vertical beam 1.9, the first wheel cover oblique angle 1.10, and the second wheel cover vertical beam 1.11 constitute the structure at the wheel position of the first side wall unit 1.

[0094] The second wheel cover's upper crossbeam 2.5, the second wheel cover's oblique angle 2.6, the third wheel cover's vertical beam 2.7, and the end wall together form the structure at the wheel position of the second side wall unit 2.

[0095] Further preferred, such as Figure 1 As shown, in this embodiment, the extended portion of the front end of the crossbeam 1.8 on the first wheel cover can serve to support the head cover, while a window angle 1.4 can be set at the corner to ensure structural strength.

[0096] The side wall columns on the side wall of the rail vehicle can also be made of Figure 2 The profile shown at the top is constructed as described above. Furthermore, in a preferred embodiment, as... Figure 5 As shown, the wall column and the window column can be connected on the outer facade of the side wall by the panel, and a reinforcing plate 1.14 is added to a part of the inner facade of the panel to increase the connection strength.

[0097] In other words, Figure 5 In the embodiment shown, both the left and right sides of the reinforcing plate 1.14 are hollow profile structures, and the portion between the hollow profiles on both sides is connected by a plate on the outer facade of the side wall. The reinforcing plate 1.14 is also partially welded to the inner facade to enhance the structural integrity. Figure 1 The reliability of the connection between the side wall panel 1.6 and the profiles on both sides in the embodiment shown.

[0098] exist Figure 5In the embodiment shown, a frame connecting plate 1.15 is also welded onto the wheel cover vertical beam, and the frame connecting plate 1.15 is provided with waist-shaped holes for connection with the frame.

[0099] Meanwhile, in a preferred embodiment, the top edges of the portal beam and the upper crossbeam on the top of the side wall of the rail vehicle provided by the present invention are assembled and positioned with the vehicle's roof side beam by an insert method and then connected by welding. (Refer to...) Figure 6 .

[0100] Figure 6 This is a schematic diagram of the assembly structure between the upper crossbeam and the top cover side beam according to an embodiment of the present invention.

[0101] Figure 6 The diagram shows the assembly relationship between the first upper crossbeam 1.3 and the top cover side beam 4, which is also the assembly relationship between the door beam 3, the second upper crossbeam 2.3, and the top cover side beam 4. Figure 6 As shown, this insert structure can reduce the impact of transverse forces on the weld and enhance the fatigue strength of the structure.

[0102] Furthermore, in a preferred embodiment, the bottom surface of the lower crossbeam and the door post at the bottom of the side wall of the rail vehicle provided by the present invention is welded to the side beam of the vehicle's underframe, and the positions of the inner and outer welds are staggered. (Refer to...) Figure 7 and Figure 8 .

[0103] Figure 7 This is a schematic diagram of the assembly structure between the lower crossbeam and the base frame side beam according to an embodiment of the present invention.

[0104] Figure 7 The figure shows the assembly relationship between the second lower crossbeam 1.13 and the base frame side beam 5. As can be seen from the figure, in order to ensure the strength of the structure, the butt joints on the inner and outer surfaces are staggered. Furthermore, preferably, the joints can be modified without changing the weld position, thereby optimizing the fit so that the second lower crossbeam at the bottom of the side wall and the base frame side beam can be installed by insertion, while ensuring that their surfaces are flat.

[0105] Figure 8 This is a schematic diagram of the assembly structure between the door post and the base frame side beam according to an embodiment of the present invention.

[0106] Please refer to Figure 8 , Figure 8The assembly relationship between the second door pillar 2.2 and the underframe side beam 5 is shown. Since the vehicle sidewall provided by this invention uses lightweight profiles, preferably, cross welds can be avoided as much as possible in the assembly structure, thereby optimizing the welding structure and increasing connection strength. At the same time, the lower door corner design is eliminated, further simplifying the sidewall structure. Furthermore, the side of the door pillar can be directly welded to the side beam, simplifying the weld layout and avoiding the influence of cross welds, facilitating door installation, reducing the amount of grinding work required during door installation, and improving the overall usability of the vehicle sidewall.

[0107] In a preferred embodiment, the rail vehicle sidewall provided by the present invention has a frame connecting plate on the wheel arch vertical beam, and a frame connecting seat composed of L-shaped plates welded to the sidewall column above the wheel arch horizontal beam, which can be referred to as... Figure 9 .

[0108] Figure 9 This is a schematic diagram of the device structure of the side wall frame connecting seat according to an embodiment of the present invention.

[0109] like Figure 9 As shown, a frame connecting seat 7 can be welded above each wheel arch crossbeam. Preferably, to ensure the structural reliability of the connecting seat, the frame connecting seat 7 can be made of L-shaped aluminum alloy profile and reinforced with ribs. The frame of each car section is fastened to the corresponding connecting seat with bolts.

[0110] In one embodiment, preferably, the rail vehicle sidewall provided by the present invention has C-shaped grooves on the upper crossbeam for installing control modules. Multiple C-shaped grooves are connected to the upper crossbeam by intermittent welding or integrally formed with the profile of the upper crossbeam. Please refer to [reference needed]. Figure 10 .

[0111] Figure 10 This is a schematic diagram of a device structure for a C-shaped groove on a side wall according to an embodiment of the present invention.

[0112] like Figure 10 As shown, since the control modules of vehicle equipment are usually arranged on the upper part of the side wall, the vehicle side wall provided by the present invention, in this embodiment, preferably has uniformly sized C-shaped grooves 2.10 arranged on the second upper crossbeam 2.3 to meet the installation requirements of multiple system control modules. Please refer to... Figure 10 In this embodiment, the C-groove can be intermittently welded. Understandably, since the lightweight profile further optimizes the profile cross-section, to better prevent welding deformation, preferably, the C-groove cross-section and the upper crossbeam cross-section can be integrally extruded.

[0113] The above provides a detailed description of the device structure for the sidewall of a rail vehicle located at a single end module, as provided by this invention. The sidewall structure at the middle workshop position can be found in [reference needed]. Figure 11 .

[0114] Figure 11 This is a schematic diagram of the device structure of another side wall module according to an embodiment of the present invention.

[0115] like Figure 11 As shown, the single-sided side wall of the middle vehicle can be welded together from multiple components such as the third side wall unit 6, the second side wall unit 2, and the door beam 3.

[0116] Furthermore, in one embodiment, preferably, multiple modules of the rail vehicle sidewalls located on both sides of the vehicle are arranged obliquely opposite each other.

[0117] In other words, in Figure 11 Based on the single-sided middle side wall shown, it can be understood that the main structure of the opposite side wall on the rail transit vehicle body can also be welded together from the third side wall unit 6, the second side wall unit 2 and the door beam 3. The side wall units on both sides of the vehicle body are arranged diagonally opposite each other, which makes full use of the advantages of modularity and facilitates production, processing and later maintenance.

[0118] For example, the parts in the third side wall unit 6 can be borrowed from the parts in the first side wall unit 1 and the second side wall unit 2, which enhances the reusability of the parts and saves the corresponding development and manufacturing costs.

[0119] The prior description of this disclosure is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not intended to be limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A side wall of a rail vehicle for rubber-tyre bearing, the side wall being composed of a plurality of modules, each module comprising: a first side wall unit, a second side wall unit, and a door beam connected to a top position between the first side wall unit and the second side wall unit to jointly form a door with door pillars respectively arranged at side edges of the first side wall unit and the second side wall unit; wherein the first side wall unit and the second side wall unit are each composed of a plurality of profiles and plates, the profiles being light-weight profiles with an optimized internal stiffener position and a number of stiffeners reduced by at least 50%; the profiles and the plates are spliced to form a window and a wheel cover on the first side wall unit and the second side wall unit respectively, and a window bevel and a wheel cover bevel are respectively arranged at corners of the window and the wheel cover; the window is composed of the door pillars, an upper cross beam, window pillars, and a first lower cross beam, the upper cross beam is connected to a top position between the door pillars and the window pillars, and a lower part of the window is connected to a chassis through a plurality of lower cross beams; and the wheel cover is arranged below the side wall of the rail vehicle at a position staggered with the window, is composed of a wheel cover upper cross beam and two wheel cover vertical beams, and is embedded in the plurality of lower cross beams, wherein the door pillars, the window pillars, and the lower cross beams are the profiles. An internal welding backing plate is arranged at a splicing joint of the profile, an outline shape of the welding backing plate is matched with an internal cavity shape of the profile, the welding backing plate is provided with a weight-reducing hole and a welding material solution flow guide groove. A side wall pillar composed of the profile is further arranged on the side wall of the rail vehicle, the side wall pillar and the window pillar are connected through the plate at an outer facade of the side wall, and a reinforcing plate is additionally arranged at a part of a position of a part of the plate at an inner facade to increase a connection strength. Top edges of the door beam and the upper cross beam at a top part of the side wall of the rail vehicle and a roof side beam of the vehicle are assembled and positioned in a plug-in manner and then connected through welding. The lower cross beams at a bottom part of the side wall of the rail vehicle and bottom surfaces of the door pillars are connected with a chassis side beam of the vehicle through welding, and welding seam positions at inner and outer surfaces are staggered. A framework connecting plate is arranged on the wheel cover vertical beam, and a framework connecting seat composed of an L-shaped plate is welded on a side wall pillar above the wheel cover cross beam.

2. The rail vehicle side wall of claim 1, wherein, A C-shaped groove for mounting a control module is arranged on the upper cross beam, a plurality of the C-shaped grooves are connected with the upper cross beam in a form of intermittent welding or are integrally formed with the profile of the upper cross beam.

3. The rail vehicle side wall of claim 1, wherein, The plurality of modules of the side wall of the rail vehicle at both sides of the vehicle are arranged in a diagonal direction opposite to each other.

4. The rail vehicle side wall of claim 1, wherein, ​ 5. The rail vehicle side wall of claim 1, wherein, ​ 6. The rail vehicle side wall of claim 1, wherein, ​ 7. The rail vehicle side wall of claim 1, wherein ​ 8. The rail vehicle side wall of claim 1, wherein, ​

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