Connecting structure of chassis and side wall, vehicle body and railway vehicle

Abstract

The invention discloses a chassis and side wall connecting structure, a vehicle body and a railway vehicle, the chassis and side wall connecting structure comprises a chassis and a side wall, the chassis comprises a floor and a side beam, the first side of the side beam is provided with a supporting part, the supporting part is used for supporting the floor, and the floor is connected with the side beam through a first connecting piece; the side wall comprises an inner plate and an outer plate, the inner plate is located above the edge beam and connected with the edge beam or the floor, the outer plate extends to the second side of the edge beam and connected with the edge beam through a second connecting piece, and the second side is the side, away from the floor, of the edge beam. By extending the outer plate of the side wall to the side part of the side beam, the contact area between the outer plate and the side beam can be increased, in addition, the inner plate of the side wall is connected with the side beam or the floor, the connection strength of the side wall can be enhanced, and in addition, the side wall can be positioned in the horizontal direction through the contact between the outer plate and the side beam; in addition, the supporting parts are arranged on the edge beams to support the floor, the floor can be positioned in the vertical direction, and therefore the side wall and the bottom frame can be conveniently installed.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular to a connection structure between an underframe and a side wall, a vehicle body and a rail vehicle. Background Art

[0002] As the speed of rail transit trains continues to increase, in order to better reduce energy consumption, rail transit equipment has an increasingly urgent need for the application of new lightweight materials. Traditional steel and aluminum alloy materials have limited lightweight design space, so the relatively lightweight carbon fiber composite materials have become the current material selection direction.

[0003] Existing composite vehicle bodies are usually split in design, and generally require the chassis and side walls to be fixedly connected. However, the existing connection method is mainly to fix the side walls directly on the chassis, which has high requirements for the assembly accuracy of the two. In addition, welding is mainly used for connection. Due to the limited overlap area between the chassis and the side walls, the connection stability is poor. Summary of the invention

[0004] The object of the present invention is to provide a connection structure between an underframe and a side wall, a vehicle body and a rail vehicle, which can not only facilitate the connection between the underframe and the side wall, but also effectively improve the connection strength between the underframe and the side wall.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A connection structure between a base frame and a side wall comprises a base frame and a side wall, wherein the base frame comprises a floor and a side beam, wherein a support portion is provided on a first side of the side beam, wherein the support portion is used to support the floor, and wherein the floor is connected to the side beam via a first connecting piece; wherein the side wall comprises an inner plate and an outer plate, wherein the inner plate is located above the side beam and is connected to the side beam or the floor, and wherein the outer plate extends to a second side of the side beam and is connected to the side beam via a second connecting piece, wherein the second side is a side of the side beam away from the floor.

[0007] In some embodiments, the support portion is a support platform disposed on the first side, and one side of the floor is disposed on the support platform.

[0008] In some embodiments, a lap edge is provided on one side of the upper portion of the floor, the lap edge is located on the upper surface of the side beam, and the lap edge is fixed to the side beam through the first connecting member.

[0009] In some embodiments, a support plate extending in a vertical direction is provided on the upper portion of the side beam, and the inner plate and the support plate are connected by a third connecting member.

[0010] In some embodiments, a bottom plate is integrally formed between the bottom of the inner plate and a side of the outer plate facing the inner plate, and a preset gap is left between the lower surface of the bottom plate and the upper surface of the side beam.

[0011] In some embodiments, a chamfer is provided at a junction between an upper surface of the side beam and a surface of the side beam facing the outer panel.

[0012] In some embodiments, the supporting portion is a first inclined surface arranged on the first side of the side beam, the distance between the first inclined surface and the second side increases gradually from top to bottom, and one side of the floor is provided with a second inclined surface that cooperates with the first inclined surface.

[0013] In some embodiments, an L-shaped connecting plate is provided on one side of the floor, a horizontal plate of the L-shaped connecting plate is connected to the side beam, and a vertical plate of the L-shaped connecting plate is connected to the inner plate.

[0014] A vehicle body comprises the connection structure between the underframe and the side wall as described in any one of the above items.

[0015] A rail vehicle comprises the above-mentioned vehicle body.

[0016] Compared with the prior art, the above technical solution has the following advantages:

[0017] The present invention provides a connection structure between a chassis and a side wall, a vehicle body and a rail vehicle, comprising a chassis and a side wall, wherein the chassis comprises a floor and a side beam, a first side of the side beam is provided with a support portion, the support portion is used to support the floor, and the floor is connected to the side beam through a first connecting member; the side wall comprises an inner plate and an outer plate, the inner plate is located above the side beam and is connected to the side beam or the floor, wherein the outer plate extends to the second side of the side beam and is connected to the side beam through a second connecting member, and the second side is the side of the side beam away from the floor. By extending the outer plate of the side wall to the side of the side beam, the contact area between the two can be increased, and the connection strength of the side wall can be strengthened by the inner plate of the side wall being connected to the side beam or the floor, and the contact between the outer plate and the side beam can play a role in positioning the side wall in the horizontal direction, and by arranging a support portion on the side beam to support the floor, the floor can play a role in positioning the floor in the vertical direction, so that the installation of the side wall and the chassis can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1A schematic diagram of a connection structure between a base frame and a side wall provided in a specific embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a connection structure between a base frame and a side wall provided in another specific embodiment of the present invention.

[0021] The reference numerals are as follows:

[0022] 10-base frame, 11-floor, 111-lap edge, 112-L-shaped connecting plate, 113-support member, 12-side beam, 121-support platform, 122-chamfer;

[0023] 20-side wall, 21-inner panel, 22-outer panel;

[0024] 30- first connecting member;

[0025] 40- second connecting member;

[0026] 50- third connecting member;

[0027] 60-Fourth connecting piece. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Please refer to Figure 1 and Figure 2 , a connection structure between a base frame 10 and a side wall 20 provided in an embodiment of the present invention comprises a base frame 10 and a side wall 20, wherein the base frame 10 comprises a floor 11 and a side beam 12, a first side of the side beam 12 is provided with a support portion, the support portion is used to support the floor 11, the floor 11 is connected to the side beam 12 through a first connecting member 30, and the first connecting member 30 can be a rivet; the side wall 20 can be made of a carbon fiber composite material, and the side wall 20 comprises an inner plate 21 and an outer plate 22, the inner plate 21 is located above the side beam 12, and is connected to the side beam 12 or the floor 11, such as Figure 1 The inner plate 21 is connected to the side beam 12, as shown in FIG. Figure 2The inner plate 21 is connected to the side beam 12, wherein the outer plate 22 extends to the second side of the side beam 12 and is connected to the side beam 12 through a second connecting member 40, wherein the second side is the side of the side beam 12 away from the floor 11, wherein the second connecting member 40 can be selected as a rivet, and specifically, multiple groups of rivets along the vertical direction can be connected between the side beam 12 and the outer plate 22 to improve the connection strength. Further, a covering member can be provided on the outer side of the extension plate of the outer plate 22, and the covering member can cover the rivets, and the covering member can be bonded or clamped on the outer side of the outer plate 22. By extending the outer plate 22 of the side wall 20 to the side of the side beam 12, the contact area between the two can be increased. In addition, the inner plate 21 of the side wall 20 is connected to the side beam 12 or the floor 11, which can strengthen the connection strength of the side wall 20. In addition, through the contact between the outer plate 22 and the side beam 12, the side wall 20 can be positioned in the horizontal direction. In addition, by providing a support portion on the side beam 12 to support the floor 11 , the floor 11 can be positioned in the vertical direction, thereby facilitating the installation of the side wall 20 and the base frame 10 .

[0030] In some embodiments, the support portion is a support platform 121 disposed on the first side. Figure 1 As shown, a support platform 121 extending in the horizontal direction is provided on the first side of the side beam 12, and one side of the floor 11 is provided on the support platform 121. A lap edge 111 is provided on one side of the upper part of the floor 11, and the lap edge 111 is located on the upper surface of the side beam 12, that is, the floor 11 is supported by the support platform 121 and the upper surface of the side beam 12, and the lap edge 111 is fixed to the side beam 12 through the first connecting member 30, and a structural adhesive can be provided between the lap edge 111 and the upper surface of the side beam 12 to play a sealing role. A gap is left between the first side surface of the side beam 12 and the side surface of the floor 11, so as to adjust the relative position between the floor 11 and the side beam 12, thereby facilitating the assembly of the two.

[0031] In some embodiments, a support plate extending in the vertical direction is provided on the upper portion of the side beam 12, and the inner plate 21 and the support plate are connected by a third connecting member 50, such as Figure 1The support plate shown is located on the right side of the inner plate 21, and the inner plate 21 can be limited in the horizontal direction by the support plate, wherein the third connecting member 50 can be selected as a rivet, and structural adhesive can be arranged between the inner plate 21 and the support plate to play a sealing role. The side wall 20 includes a connecting portion located above the side beam 12, and also includes a wall located above the connecting portion, the wall and the connecting portion are integrally formed, and reinforcing ribs are arranged between the inner and outer plates of the wall, and the reinforcing ribs are arranged obliquely relative to the horizontal plane, wherein the thickness of the wall is less than the thickness of the connecting portion, and the height of the connecting portion is higher than the height of the support plate. Through the connecting portion and the wall with different thicknesses, on the one hand, the connection stability between the side wall 20 and the side beam 12 can be improved, and on the other hand, the internal space of the vehicle body can be increased, and the weight of the vehicle body can also be reduced. Furthermore, the thickness of the section at the junction of the connecting portion and the wall gradually decreases from bottom to top to ensure the structural strength of the side wall 20.

[0032] In some embodiments, a bottom plate is integrally formed between the bottom of the inner plate 21 and the side of the outer plate 22 facing the inner plate 21, that is, the inner plate 21, the outer plate 22 and the bottom plate are an integrally formed structure, such as Figure 1 As shown, a preset gap is left between the lower surface of the bottom plate and the upper surface of the side beam 12 to ensure that there is a certain adjustment space when the large-scale belt deflection is assembled in the general assembly process, and the gap between the bottom plate and the side beam 12 is sealed with sealant to ensure the airtightness of the vehicle body.

[0033] In some embodiments, a chamfer 122 is provided at the junction between the upper surface of the side beam 12 and the surface of the side beam 12 facing the outer panel 22. Figure 1 As shown, a chamfer 122 is provided at the upper left corner of the side beam 12, and the chamfer 122 can prevent the side beam 12 from extruding the corners of the outer plate 22 and the bottom plate, thereby ensuring the assembly stability of the side wall 20 and the side beam 12. The side beam 12 is preferably a hollow structure, for example Figure 1 As shown, the cross section of the side beam 12 includes three U-shaped structures, which are respectively recorded as a corner U-shaped structure, a side U-shaped structure and a bottom U-shaped structure, wherein the side U-shaped structure is located on the right side of the corner U-shaped structure, the bottom U-shaped structure is located at the bottom of the corner U-shaped structure, the outer plate 22 extends downward to the side of the low-position U-shaped structure, the support platform 121 is located on the right side of the side U-shaped structure, the support plate is located at the upper part of the junction of the corner U-shaped structure and the side U-shaped structure, and a chamfer 122 is provided at the upper left corner of the corner U-shaped structure.

[0034] In some embodiments, Figure 2As shown, the support portion is a first inclined surface arranged on the first side of the side beam 12, and the distance between the first inclined surface and the second side of the side beam 12 increases gradually from top to bottom, that is, the cross section of the side beam 12 is a right-angled trapezoidal structure, wherein in order to improve the structural strength of the side beam 12, a reinforcing plate extending in the horizontal direction can be arranged inside the side beam 12, and the two sides of the reinforcing plate are respectively connected to the two sides inside the side beam 12, and the reinforcing plate can be integrally formed with the side beam 12, and a second inclined surface that cooperates with the first inclined surface is arranged on one side of the floor 11. In order to facilitate the connection of the floor 11, a support member 113 can be arranged at the bottom of the floor 11, and the support member 113 includes a transverse connecting member and a lateral connecting member, and the transverse connecting member and the lateral connecting member are an integrally formed structure, and the transverse connecting member can be connected to the bottom of the floor 11, and a second inclined surface is arranged on the lateral connecting member, and the second inclined surface of the lateral connecting member contacts the first inclined surface of the side beam 12, that is, the support member 113 is supported by the side beam 12, and the floor 11 is supported by the support member 113. Specifically, the two sides of the floor 11 correspond to a side beam 12 respectively, and the opposite sides of the two side beams 12 are respectively provided with a first inclined surface, that is, the distance between the two side beams 12 gradually decreases from top to bottom, and a support member 113 is respectively provided on both sides of the bottom of the floor 11, and the distance between the second inclined surfaces of the lateral connecting members of the two support members 113 gradually decreases from top to bottom. When the floor 11 is placed between the two side beams 12, the first inclined surface can support the floor 11. Further, the side connecting member can be fixed to the side beam 12 through the fourth connecting member 60, wherein the fourth connecting member 60 can be selected as a rivet.

[0035] In some embodiments, an L-shaped connecting plate 112 is provided on one side of the floor 11, the horizontal plate of the L-shaped connecting plate 112 is connected to the side beam 12, and the vertical plate of the L-shaped connecting plate 112 is connected to the inner plate 21. Figure 2 As shown, by connecting the L-shaped connecting plate 112 to the side beam 12 and the inner plate 21 respectively, the connection strength of the three can be effectively improved, thereby ensuring the connection stability of the side wall 20 and the bottom frame 10.

[0036] An embodiment of the present invention also provides a vehicle body, including a connection structure between the base frame 10 and the side wall 20 provided in any one of the above embodiments. Regarding the beneficial effects of the vehicle body, reference may be made to the connection structure between the base frame 10 and the side wall 20 provided in the above embodiments, which will not be repeated here.

[0037] An embodiment of the present invention further provides a rail vehicle, including the vehicle body provided in the above embodiment. Regarding the beneficial effects of the rail vehicle, reference may be made to the connection structure between the base frame 10 and the side wall 20 provided in the above embodiment, which will not be repeated here.

[0038] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0039] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0040] The above is a detailed introduction to a connection structure between a chassis and a side wall, a car body and a rail vehicle provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A connection structure between a base frame and a side wall, comprising a base frame (10) and a side wall (20), characterized in that: The base frame (10) comprises a floor (11) and a side beam (12); a support portion is provided on a first side of the side beam (12), the support portion is used to support the floor (11), and the floor (11) is connected to the side beam (12) via a first connecting member (30); the side wall (20) comprises an inner plate (21) and an outer plate (22), the inner plate (21) is located above the side beam (12) and is connected to the side beam (12) or the floor (11), and the outer plate (22) extends to a second side of the side beam (12) and is connected to the side beam (12) via a second connecting member (40), the second side being a side of the side beam (12) away from the floor (11).

2. The connection structure between the bottom frame and the side wall according to claim 1, characterized in that: The support portion is a support platform (121) arranged on the first side, and one side of the floor (11) is arranged on the support platform (121).

3. The connection structure between the bottom frame and the side wall according to claim 2, characterized in that: An overlapping edge (111) is provided on one side of the upper portion of the floor (11), the overlapping edge (111) being located on the upper surface of the side beam (12), and the overlapping edge (111) being fixed to the side beam (12) via the first connecting member (30).

4. The connection structure between the bottom frame and the side wall according to claim 3, characterized in that: A support plate extending in a vertical direction is provided on the upper portion of the side beam (12), and the inner plate (21) and the support plate are connected via a third connecting member (50).

5. The connection structure between the bottom frame and the side wall according to claim 4, characterized in that: A bottom plate is integrally formed between the bottom of the inner plate (21) and the side of the outer plate (22) facing the inner plate (21), and a preset gap is left between the lower surface of the bottom plate and the upper surface of the side beam (12).

6. The connection structure between the bottom frame and the side wall according to claim 5, characterized in that: A chamfer (121) is provided at a junction between the upper surface of the side beam (12) and the surface of the side beam (12) facing the outer plate (22).

7. The connection structure between the bottom frame and the side wall according to claim 1, characterized in that: The support portion is a first inclined surface arranged on the first side of the side beam (12), the distance between the first inclined surface and the second side gradually increases from top to bottom, and a second inclined surface cooperating with the first inclined surface is provided on one side of the floor (11).

8. The connection structure between the bottom frame and the side wall according to claim 7, characterized in that: An L-shaped connecting plate (112) is provided on one side of the floor (11), the transverse plate of the L-shaped connecting plate (112) is connected to the side beam (12), and the vertical plate of the L-shaped connecting plate (112) is connected to the inner plate (21).

9. A vehicle body, characterized in that: It comprises the connection structure between the base frame and the side wall as claimed in any one of claims 1 to 8.

10. A rail vehicle, characterized in that: Comprising the vehicle body as claimed in claim 9.

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