Railway vehicle side wall for rubber wheel bearing

Abstract

The invention provides a rail vehicle side wall used for rubber wheel bearing, the rail vehicle side wall is composed of a plurality of modules, each module comprises a first side wall unit, a second side wall unit and a door beam, the door beam is connected to the top position between the first side wall unit and the second side wall, and the first side wall unit is connected with the second side wall unit. The door stand columns are arranged on the side edges of the first side wall unit and the second side wall unit respectively. Each of the first side wall unit and the second side wall unit is formed by splicing a plurality of sectional materials and plates, and the sectional materials are light-weight sectional materials with the number of reinforcing ribs reduced by at least 50% after the positions of the internal reinforcing ribs are optimized.

Description

Technical Field

[0001] The invention relates to the field of rail vehicle design, and in particular to a rail vehicle side wall used for rubber wheel bearing. Background Art

[0002] At present, the side walls of rail vehicles are mainly made of aluminum alloy profiles. For example, some vehicle side walls are welded by side wall window columns, window curtain components, and door columns. The connection between the welded components and the top cover and the bottom frame is usually connected by riveting or bolting. This kind of structural connection is complex, the size control is not accurate enough, and the connection reliability is relatively limited.

[0003] Alternatively, in some rail vehicle side wall solutions in the prior art, the side wall columns are all connected to the side wall body, and multiple side wall columns are arranged at intervals along the length direction of the side wall body, and the auxiliary air duct is directly formed on the side wall. The structural modularity is not high and the lightweight is insufficient.

[0004] The above-mentioned aluminum alloy side wall structures in the prior art can be applied to urban rail transit vehicles with steel wheels. However, they are not very practical for tire-type rubber-wheeled rail vehicles and cannot meet the requirements of lightweight and reliability at the same time.

[0005] In order to overcome the above-mentioned defects of the prior art, the art is in urgent need of a side wall for a rubber-wheel-supported rail vehicle, which can take into account the use requirements of the rail vehicle side wall such as strength, rigidity, lightness, modularity and maintenance, and effectively solve various technical problems in the design of the side wall of a rubber-wheel-supported rail vehicle. Summary of the invention

[0006] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a modular rail vehicle side wall, which is composed of a plurality of modules, each module comprising: a first side wall unit, a second side wall unit and a door beam, the door beam is connected to the top position between the first side wall unit and the second side wall, so as to form a vehicle door together with door columns respectively arranged on the sides of the first side wall unit and the second side wall unit; and the first side wall unit and the second side wall unit are both spliced ​​by a plurality of profiles and plates, wherein the profile adopts a lightweight profile with the position of the internal reinforcement ribs optimized and the number of reinforcement ribs reduced by at least 50%.

[0008] In one embodiment, preferably, the profile is provided with a welding pad inside the spliced ​​joint, the contour shape of the welding pad matches the inner cavity shape of the profile, and the welding pad is provided with a weight-reducing hole and a welding solution guide groove.

[0009] In one embodiment, preferably, the profile and the plate are spliced ​​to form a vehicle window and a wheel cover on the first side wall unit and the second side wall unit respectively, and the vehicle window and the wheel cover are provided with a window bevel angle and a wheel cover bevel angle at their corners respectively.

[0010] In one embodiment, preferably, the vehicle window is composed of the door pillar, the upper crossbeam, the window pillar and the first lower crossbeam, wherein the upper crossbeam is connected to the top position between the door pillar and the window pillar, and the lower part of the vehicle window is connected to the vehicle chassis through a plurality of lower crossbeams; and the wheel cover is arranged below the side wall of the rail vehicle and at a position staggered from the vehicle window, and is composed of a wheel cover upper crossbeam and two wheel cover vertical beams, which are embedded in the plurality of lower crossbeams, wherein the door pillar, the window pillar and the lower crossbeam are all made of this profile.

[0011] In one embodiment, preferably, the side wall of the rail vehicle is also provided with a side wall column made of the profile, and the side wall column is connected to the window column through the plate on the outer facade of the side wall, and some of the plates are additionally provided with reinforcing plates at some positions on the inner facade to increase the connection strength.

[0012] In one embodiment, preferably, the door beam and the top edge of the upper cross beam on the top of the side wall of the rail vehicle are assembled and positioned with the roof side beam of the vehicle by plug-in and then connected by welding.

[0013] In one embodiment, preferably, the lower cross beam at the bottom of the side wall of the rail vehicle and the bottom surface of the door column are connected to the side beam of the vehicle chassis by welding, and the positions of the welds on the inside and outside are staggered.

[0014] In one embodiment, preferably, a frame connecting plate is provided on the wheel arch vertical beam, and a frame connecting seat composed of an L-shaped plate is welded on the side wall column above the wheel arch cross beam.

[0015] In one embodiment, preferably, a C-shaped groove for installing the control module is provided on the upper crossbeam, and the C-shaped groove is connected to the upper crossbeam by intermittent welding or is integrally formed with the profile of the upper crossbeam.

[0016] In one embodiment, preferably, a plurality of modules of the side wall of the rail vehicle located on both sides of the vehicle are arranged diagonally opposite to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and components with similar related properties or features may have the same or similar reference numerals.

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

[0019] Figure 2 is a schematic diagram of an improved structure of a profile cross section according to an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of a device for adding a welding pad in a transverse profile according to an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of a device for adding a welding pad in a longitudinal profile according to an embodiment of the present invention;

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

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

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

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

[0026] Fig. 9 is a schematic diagram of the device structure of the side wall frame connection seat according to an embodiment of the present invention;

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

[0028] Fig.11 FIG. 4 is a schematic diagram of the device structure of another sidewall module according to an embodiment of the present invention.

[0029] For the sake of clarity, a brief description of the reference numerals is given below:

[0030] 1First side wall unit

[0031] 1.1 First door angle

[0032] 1.2 First door pillar

[0033] 1.3 First upper beam

[0034] 1.4 Window bevel

[0035] 1.5 First window column

[0036] 1.6 Side wall sealing plate

[0037] 1.7 First side wall column

[0038] 1.8 First wheel cover upper crossbeam

[0039] 1.9 First wheel housing vertical beam

[0040] 1.10 First wheel cover bevel

[0041] 1.11 Second wheel housing vertical beam

[0042] 1.12 First lower beam

[0043] 1.13 Second lower crossbar

[0044] 1.14 Reinforcement plate

[0045] 1.15 Frame connection plate

[0046] 1.16 First welding pad

[0047] 1.17 Second welding pad

[0048] 1.18 Third welding pad

[0049] 1.19 Fourth welding pad

[0050] 1.20 Fifth welding pad

[0051] 1.21 Sixth welding pad

[0052] 2 Second side wall unit

[0053] 2.1 Second door angle

[0054] 2.2 Second door pillar

[0055] 2.3 Second upper crossbar

[0056] 2.4 Window columns

[0057] 2.5 Second wheel cover upper crossbeam

[0058] 2.6 Second wheel cover bevel

[0059] 2.7 The third wheel cover vertical beam

[0060] 2.8 The first lower beam

[0061] 2.9 Second lower crossbar

[0062] 2.10C-type slot

[0063] 3 Door beam

[0064] 4 Top cover side beam

[0065] 5. Bottom frame side beam

[0066] 6Third side wall unit

[0067] 7 frame connection seat DETAILED DESCRIPTION

[0068] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In addition, the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal" and "vertical" used in the following description should be understood as the directions shown in the paragraph and the related drawings. Such relative terms are only used for the convenience of description and do not mean that the device described therein must be manufactured or operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0071] It is understood that although the terms "first", "second", "third", etc. may be used herein to describe various components, regions, layers and / or parts, these components, regions, layers and / or parts should not be limited by these terms, and these terms are only used to distinguish different components, regions, layers and / or parts. Therefore, the first component, region, layer and / or part discussed below may be referred to as a second component, region, layer and / or part without departing from some embodiments of the present invention.

[0072] In order to overcome the above-mentioned defects of the prior art, the present invention provides a side wall of a rail vehicle supported by rubber wheels, which can take into account the use requirements of the rail vehicle side wall such as strength, rigidity, lightness, modularity and maintenance, and effectively solve various technical problems in the design of the side wall of a rail vehicle supported by rubber wheels.

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

[0074] Please refer to Figure 1 The present invention provides a rail vehicle side wall for rubber-wheel bearing, which is composed of multiple modules, each of which may include: a first side wall unit 1, a second side wall unit 2 and a door beam 3, the door beam 3 is connected to the top position between the first side wall unit 1 and the second side wall unit 2, so as to form a vehicle door together with the door pillars 1.2 and the door pillars 2.2 respectively arranged on the sides 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 profile adopts a lightweight profile with the position of the internal reinforcement ribs optimized and the number of reinforcement ribs reduced by at least 50%.

[0075] Figure 2 1 is a schematic diagram of an improved structure of a profile cross section according to an embodiment of the present invention.

[0076] like Figure 2 As shown, Figure 2 The top is a cross-sectional view of the profile used in the present invention, and the bottom is a cross-sectional view of a profile in the prior art. Comparing the two, it can be clearly seen that the profile used in the present invention has significantly reduced the number of internal reinforcing ribs, reducing at least 50% of the internal reinforcing ribs, thereby achieving the advantage of lightweight.

[0077] It should be particularly noted that the lightweight profile used in the present invention, in addition to the significantly reduced number of internal reinforcement ribs, the shape structure and arrangement position of the internal reinforcement ribs are also the result of simulation design, test detection and optimization, while meeting the support strength and stiffness requirements while minimizing the weight of the profile, thereby meeting the characteristic requirements of the rubber wheel load-bearing.

[0078] You can continue to refer to Figure 1 In a preferred embodiment, the profiles and plates are spliced ​​to form vehicle windows and wheel covers on the first side wall unit 1 and the second side wall unit 2, respectively. The vehicle windows and wheel covers are provided with window bevels and wheel cover bevels at their corners 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 angle 1.1, a first door column 1.2, a first upper cross beam 1.3, a window angle 1.4, a first window column 1.5, a side wall cover 1.6, a first side wall column 1.7, a first wheel cover upper cross beam 1.8, a first wheel cover vertical beam 1.9, a first wheel cover angle 1.10, a second wheel cover vertical beam 1.11, a first lower cross beam 1.12, and a second lower cross beam 1.13. The second side wall unit 2 may include: a second upper door angle 2.1, a second door column 2.2, a second upper cross beam 2.3, a window angle 1.4, a window column 2.4, a first side wall column 1.7, a second wheel cover upper cross beam 2.5, a second wheel cover angle 2.6, a third wheel cover vertical beam 2.7, a first lower cross beam 2.8, and a second lower cross beam 2.9.

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

[0081] In this embodiment, the door pillars, window pillars, side wall pillars, wheel housing upper beams, upper beams, lower beams and other components can be made of Figure 2 The profile section shown above is a profile with a lightweight optimized design. The profile section is composed of multiple "rectangular" cavities, which can better adapt to the technical requirements of aluminum profile processing and has a simple structure and is easy to form. The profile can be extruded in one piece and can meet the required strength, riveting requirements and welding performance requirements. It should be specially explained that the "rectangular" cavity here is only used for exemplary purposes to clearly show the possible structure of the lightweight profile used in the side wall provided by the present invention. It is not used to limit the scope of protection of the present invention, nor does it necessarily require a rectangular cavity design.

[0082] Furthermore, in a preferred embodiment of the present invention, a welding pad is provided inside the profile at the spliced ​​joint, the contour shape of the welding pad matches the inner shape of the profile, and reinforcing ribs are provided inside the welding pad.

[0083] Figure 3 The figure is a schematic diagram of a device structure for adding a welding pad in a transverse profile according to an embodiment of the present invention.

[0084] In this embodiment, after the side wall profile is lightened, a welding pad is added to ensure the strength and rigidity of the joint. Figure 3As shown, the contour shape of the pad is consistent with the cross-section of the inner cavity of the profile, and the pad has a certain thickness and a stepped edge design to form a molten cavity with the profile port. In order to reduce the weight of the pad, a hollow design can be adopted and the reinforcement ribs of the welding pad can be designed according to the arrangement of the inner ribs of the profile. At the same time, a certain depth can be reserved at the profile joint during processing to cooperate with the installation of the welding pad. In addition, the welding pad can be made of aluminum alloy plate of a certain thickness, and has corresponding weight-reducing holes and welding material solution guide grooves.

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

[0086] Figure 4 The figure is a schematic diagram of a device structure for adding a welding pad 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 beam 1.3, the fifth welding pad 1.20 is arranged at the joint of the first lower beam 1.12, and the sixth welding pad 1.21 is arranged at the joint of the second lower beam 1.13.

[0088] It can be seen that in this preferred embodiment of the present invention, corresponding welding pads can be arranged at the joints of the profiles to ensure the reliability of welding at the joints. Welding pads can also be arranged at the welding joints of other side wall components to achieve lightweight and enhance connection reliability.

[0089] Therefore, the rail vehicle side wall provided by the present invention achieves the reliability and safety performance of component connection and support strength while significantly reducing the weight of the entire vehicle through lightweight profile design and the addition of welding pads at the interfaces.

[0090] In a preferred embodiment, the present invention provides a side wall of a rail vehicle for rubber tire bearing, the window is composed of the door column, an upper crossbeam, a window column and a first lower crossbeam, wherein the upper crossbeam is connected to the top position between the door column and the window column, and the lower part of the window is connected to the vehicle chassis through a plurality of lower crossbeams; and the wheel cover is arranged below the side wall of the rail vehicle and at a position staggered from the window, and is composed of a wheel cover upper crossbeam and two wheel cover vertical beams, and is embedded in the plurality of lower crossbeams, wherein the door column, the window column and the lower crossbeam are the profile. It can be combined with reference to Figure 5 .

[0091] Figure 5FIG. 4 is a schematic diagram of the device structure of the side wall and the reinforcing plate according to an embodiment of the present invention.

[0092] Please refer to 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 form the window of the first side wall unit 1, and the window profile has a glass stop design, which does not require machining, thereby facilitating the installation of the window glass. A window bevel 1.4 can be set at the butt angle of the window profile to ensure the structural strength. The window of the second side wall unit 2 can adopt the same structure. It can be understood that the length and width of the window can be changed by adjusting the length of the profile to meet the design and use requirements of different models and compartments.

[0093] At the same time, you can continue to combine reference Figure 1 , 5 In this embodiment, the first wheel house upper cross beam 1.8, the first wheel house vertical beam 1.9, the first wheel house bevel 1.10, and the second wheel house vertical beam 1.11 constitute the structure at the wheel on the first side wall unit 1.

[0094] The second wheel house upper cross beam 2.5, the second wheel house bevel 2.6, the third wheel house vertical beam 2.7 and the end wall together form the structure of the wheel on the second side wall unit 2.

[0095] Further preferably, Figure 1 As shown, in this embodiment, the protruding portion of the front end of the first wheel cover upper cross beam 1.8 can play the role of supporting the head cover, and at the same time, a window bevel 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 On this basis, further, 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 through the plate, and a reinforcement plate 1.14 is added to part of the inner facade of the plate to increase the connection strength.

[0097] In other words, Figure 5 In the embodiment shown, both sides of the reinforcing plate 1.14 are hollow profile structures, and the part between the hollow profiles on both sides is connected with a plate on the outer facade of the side wall, and the reinforcing plate 1.14 is welded locally on the inner facade to improve Figure 1 The reliability of the connection between the side wall cover plate 1.6 and the profiles on both sides in the illustrated embodiment.

[0098] exist Figure 5In the illustrated embodiment, a frame connecting plate 1.15 is also welded to the wheel house vertical beam, and waist-shaped holes are arranged on the frame connecting plate 1.15 for connection with the frame.

[0099] At the same time, in a preferred embodiment, the door beam and the top edge of the upper cross beam at the top of the side wall of the rail vehicle provided by the present invention are assembled and positioned by plug-in and then connected by welding. Figure 6 .

[0100] Figure 6 The figure is a schematic diagram of the assembly structure between the upper cross beam and the roof side beam according to an embodiment of the present invention.

[0101] Figure 6 The figure shows the assembly relationship between the first upper cross beam 1.3 and the roof side beam 4, and also the assembly relationship between the door beam 3, the second upper cross beam 2.3 and the roof side beam 4. Figure 6 As shown, the plug-in structure can reduce the impact of lateral force on the weld and enhance the fatigue resistance of the structure.

[0102] Further, in a preferred embodiment, the lower cross beam at the bottom of the side wall of the rail vehicle provided by the present invention and the bottom surface of the door column are connected to the side beam of the vehicle chassis by welding, and the positions of the inner and outer welds are staggered. Figure 7 and Figure 8 .

[0103] Figure 7 The figure is a schematic diagram of the assembly structure between the lower cross beam and the underframe side beam according to an embodiment of the present invention.

[0104] Figure 7 The figure shows the assembly relationship between the second lower cross beam 1.13 and the frame side beam 5. It can be seen in the figure that in order to ensure the strength of the structure, the design of staggered arrangement of the butt joints on the inner and outer surfaces is adopted. Further, preferably, the joints can be modified without changing the position of the weld seam, so as to optimize the fit so that the second lower cross beam at the bottom of the side wall and the frame side beam can be installed in a plug-in manner, and at the same time, it is necessary to ensure that their surfaces are flat.

[0105] Figure 8 The present invention is a schematic diagram of an assembly structure between a door column and a chassis 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 chassis side beam 5 is shown. Since the vehicle side wall provided by the present invention adopts a lightweight profile, preferably, cross welds can be avoided as much as possible in the assembly structure, thereby optimizing the welding structure and increasing the connection strength. At the same time, the design of the lower door angle is eliminated to further simplify the side wall structure. In addition, 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, which can facilitate the installation of the door, reduce the workload of grinding the structure when installing the door, and improve the overall usability of the vehicle side wall.

[0107] In a preferred embodiment, the rail vehicle side wall provided by the present invention has a frame connecting plate on the wheel cover vertical beam, and a frame connecting seat composed of an L-shaped plate is welded on the side wall column above the wheel cover cross beam, which can be referred to Fig. 9 .

[0108] Fig. 9 The figure is a schematic diagram of the device structure of the side wall frame connection seat according to an embodiment of the present invention.

[0109] like Fig. 9 As shown, a frame connection seat 7 can be welded above each wheel housing cross beam. Preferably, in order to ensure the structural reliability of the connection seat, the frame connection seat 7 can be made of an L-shaped aluminum alloy profile and arranged with reinforcing ribs. The frame of each car is fastened to the corresponding connection seat by bolts.

[0110] In one embodiment, preferably, the rail vehicle side wall provided by the present invention has a C-shaped groove for installing a control module on the upper crossbeam, and a plurality of the C-shaped grooves are connected to the upper crossbeam in the form of intermittent welding or are integrally formed with the profile of the upper crossbeam. Please refer to Fig.10 .

[0111] Fig.10 1 is a schematic diagram of a device structure of a C-shaped groove on a side wall according to an embodiment of the present invention.

[0112] like Fig.10 As shown, since the control module of the vehicle equipment is usually arranged on the upper part of the side wall, the vehicle side wall provided by the present invention, in this embodiment, preferably, a C-shaped groove 2.10 of uniform specifications is arranged on the second upper cross beam 2.3 to meet the installation requirements of multiple system control modules. Fig.10 In this embodiment, the C-shaped groove can be formed by intermittent welding. It can be understood that since the lightweight profile further optimizes the profile cross section, in order to better prevent welding deformation, preferably, the C-shaped groove cross section and the upper cross beam cross section can be formed by integral extrusion.

[0113] The above is a detailed description of the device structure of the rail vehicle side wall provided by the present invention, which is located in a single module at the end. The side wall structure at the middle workshop position can be seen in Fig.11 .

[0114] Fig.11 FIG. 4 is a schematic diagram of the device structure of another sidewall module according to an embodiment of the present invention.

[0115] like Fig.11 As shown, the single-sided side wall of the middle car can be welded together by a plurality of components including the third side wall unit 6, the second side wall unit 2 and the door beam 3.

[0116] Further, in one embodiment, preferably, a plurality of modules of the side wall of the rail vehicle located on both sides of the vehicle are arranged obliquely opposite to each other.

[0117] In other words, Fig.11 Based on the single-sided middle car side wall shown, it can be understood that the main structure of the other side wall on the opposite side of the rail transit car body can also be composed of a third side wall unit 6, a second side wall unit 2 and a door beam 3 welded together, and the side wall units on both sides of the car body are arranged obliquely relative to each other, which fully utilizes the advantages of modularization and is also convenient for production, processing and later maintenance.

[0118] For example, the parts in the third sidewall unit 6 can be borrowed from the parts in the first sidewall unit 1 and the second sidewall unit 2, thereby increasing the reuse rate of the parts and saving the corresponding development and manufacturing costs.

[0119] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the 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 the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A side wall of a rail vehicle for rubber-wheel bearing, the side wall of the rail vehicle being composed of a plurality of modules, each module comprising: A first side wall unit, a second side wall unit and a door beam, wherein the door beam is connected to the top position between the first side wall unit and the second side wall, so as to form a vehicle door together with door pillars respectively arranged on the sides 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 both formed by splicing a plurality of profiles and plates, wherein the profiles are lightweight profiles in which the positions of the internal reinforcing ribs are optimized and the number of the reinforcing ribs is reduced by at least 50%.

2. The rail vehicle side wall according to claim 1, characterized in that: The profile is provided with a welding pad inside the splicing joint, the contour shape of the welding pad matches the inner cavity shape of the profile, and the welding pad is provided with a weight-reducing hole and a welding material solution guide groove.

3. The rail vehicle side wall according to claim 1, characterized in that: The profiles and plates are spliced ​​to form vehicle windows and wheel covers on the first side wall unit and the second side wall unit respectively. The vehicle windows and wheel covers are provided with window bevel angles and wheel cover bevel angles at their corners respectively.

4. The rail vehicle side wall according to claim 3, characterized in that: The vehicle window is composed of the door pillar, an upper crossbeam, a window pillar and a first lower crossbeam, wherein the upper crossbeam is connected to the top position between the door pillar and the window pillar, and the lower part of the vehicle window is connected to the bottom frame through a plurality of lower crossbeams; and The wheel cover is arranged below the side wall of the rail vehicle and at a position staggered from the window. It is composed of an upper cross beam and two vertical beams, and is embedded in the multiple lower cross beams. The door pillars, window pillars and lower cross beams are the profiles.

5. The rail vehicle side wall according to claim 4, characterized in that: The rail vehicle side wall is also provided with a side wall column made of the profile, and the side wall column is connected to the window column through the plate on the outer facade of the side wall, and some of the plates are additionally provided with reinforcing plates at some positions of the inner facade to increase the connection strength.

6. The rail vehicle side wall according to claim 4, characterized in that: The door beam and the top edge of the upper cross beam on the top of the side wall of the rail vehicle are assembled and positioned with the roof side beam of the vehicle by plug-in and then connected by welding.

7. The rail vehicle side wall according to claim 4, characterized in that: The lower cross beam at the bottom of the side wall of the rail vehicle and the bottom surface of the door column are connected to the side beam of the vehicle chassis by welding, and the positions of the inner and outer welds are staggered.

8. The rail vehicle side wall according to claim 4, characterized in that: A frame connecting plate is provided on the wheel cover vertical beam, and a frame connecting seat composed of an L-shaped plate is welded on the side wall column above the wheel cover cross beam.

9. The rail vehicle side wall according to claim 4, characterized in that: The upper crossbeam is provided with a C-shaped groove for installing the control module, and a plurality of the C-shaped grooves are connected to the upper crossbeam in the form of intermittent welding or are integrally formed with the profile of the upper crossbeam.

10. The rail vehicle side wall according to claim 1, characterized in that: The multiple modules of the rail vehicle side wall located on both sides of the vehicle are arranged diagonally opposite to each other.

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