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

Abstract

The utility model 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, a side wall, a boundary beam, a first L-shaped connecting piece and a second L-shaped connecting piece, the side wall is located above the boundary beam, the outer side face of the side wall is provided with a connecting plate extending downwards, and the connecting plate is connected to the outer side face of the boundary beam; a first vertical plate of the first L-shaped connecting piece is connected to the inner side face of the side wall, and a first transverse plate of the first L-shaped connecting piece is connected to the upper surface of the bottom frame. A second vertical plate of the second L-shaped connecting piece is connected to the inner side face of the edge beam, and a second transverse plate of the second L-shaped connecting piece is connected to the lower surface of the edge beam. The bottom frame, the side walls and the edge beams are connected with one another, namely, the side walls are respectively connected with the edge beams and the bottom frame, the bottom frame is respectively connected with the side walls and the edge beams, and the connecting structure can effectively improve the connecting stability of the side walls and the bottom frame.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicles, 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 level of rail vehicles continues to increase, in order to better reduce energy consumption, the vehicle body needs to be designed to be lightweight. Carbon fiber composite materials are used in the vehicle body due to their light weight advantage. Moreover, with the development of carbon fiber composite material application technology, it can gradually realize the transition of carbon fiber composite materials from non-load-bearing structures of rail equipment to secondary load-bearing structures and then to main load-bearing structures, which will become the development direction of lightweight rail vehicles.

[0003] Currently, composite vehicle bodies are usually split structures, which are then assembled. For example, for the connection structure between the chassis and the side walls, the current connection method is mainly to directly connect the side walls and the chassis. This connection method cannot ensure the connection stability of the side walls.

[0004] Therefore, how to improve the connection effect between the base frame and the side walls is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0005] The purpose of the utility model is to provide a connection structure between an underframe and a side wall, a vehicle body and a rail vehicle, which can effectively improve the connection effect between the underframe and the side wall.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A connection structure between a base frame and a side wall, comprising: a base frame, a side wall, a side beam, a first L-shaped connecting member and a second L-shaped connecting member, wherein the side wall is located above the side beam, and the outer side surface of the side wall is provided with a connecting plate extending downward, and the connecting plate is connected to the outer side surface of the side beam; the first vertical plate of the first L-shaped connecting member is connected to the inner side surface of the side wall, and the first horizontal plate of the first L-shaped connecting member is connected to the upper surface of the base frame; the second vertical plate of the second L-shaped connecting member is connected to the inner side surface of the side beam, and the second horizontal plate of the second L-shaped connecting member is connected to the lower surface of the side beam.

[0008] In some embodiments, a gap is left between the lower surface of the side wall and the upper surface of the edge beam.

[0009] In some embodiments, the space between the lower surface of the side wall and the upper surface of the edge beam is filled with sealant.

[0010] In some embodiments, a lap plate is provided on one side of the base frame close to the side beam, the lap plate is connected to the upper surface of the side beam, and a gap is left between the upper surface of the lap plate and the lower surface of the side wall.

[0011] In some embodiments, the side beam has an upper cavity, a middle cavity and a lower cavity distributed from top to bottom.

[0012] In some embodiments, the connecting plate is connected to side walls of the upper cavity, the middle cavity, and the lower cavity away from the base frame, and the second vertical plate is connected to a side wall of the hollow cavity away from the connecting plate.

[0013] In some embodiments, a groove is provided on the upper surface of the base frame near the side wall, the first transverse plate is located in the groove, and the upper surface of the first transverse plate is flush with the upper surface of the base frame.

[0014] In some embodiments, a reinforcement plate is provided between a lower surface of the second transverse plate and a side surface of the second vertical plate away from the edge beam.

[0015] A vehicle body comprises the connection structure between the underframe and the side walls as described in any one of the above items.

[0016] A rail vehicle comprises the above-mentioned vehicle body.

[0017] Compared with the existing technology, the above technical solution has the following advantages:

[0018] The utility model provides a connection structure between a base frame and a side wall, comprising: a base frame, a side wall, a side beam, a first L-shaped connector and a second L-shaped connector, wherein the side wall is located above the side beam, and the outer side surface of the side wall is provided with a connection plate extending downward, and the connection plate is connected to the outer side surface of the side beam; a first vertical plate of the first L-shaped connector is connected to the inner side surface of the side wall, and a first horizontal plate of the first L-shaped connector is connected to the upper surface of the base frame; a second vertical plate of the second L-shaped connector is connected to the inner side surface of the side beam, and a second horizontal plate of the second L-shaped connector is connected to the lower surface of the side beam. The base frame, side walls and side beams of the present invention are connected to each other, that is, the side walls are connected to the side beams and the base frame respectively, and the base frame is connected to the side walls and the side beams respectively. This connection structure can effectively improve the connection stability between the side walls and the base frame.

[0019] The vehicle body provided by the present invention also has the above advantages because it includes the connection mechanism between the underframe and the side walls.

[0020] The rail vehicle provided by the present invention comprises the above-mentioned vehicle body and therefore also has the advantages of the connection structure between the underframe and the side walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 The present invention is a structural diagram of a connection structure between a base frame and a side wall provided in a specific embodiment of the present invention.

[0023] The reference numerals are as follows:

[0024] 10-base frame, 11-lap plate, 12-groove;

[0025] 20-side wall, 21-connecting plate;

[0026] 30-side beam, 31-upper cavity, 32-middle cavity, 33-lower cavity;

[0027] 40-first L-shaped connector, 41-first vertical plate, 42-first horizontal plate;

[0028] 50 - second L-shaped connecting piece, 51 - second vertical plate, 52 - second horizontal plate, 53 - reinforcement plate. DETAILED DESCRIPTION

[0029] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0030] Please refer to Figure 1 , Figure 1 The present invention is a structural diagram of a connection structure between a base frame and a side wall provided in a specific embodiment of the present invention.

[0031] The embodiment of the present invention provides a connection structure between a base frame 10 and a side wall 20, which is a partial structure of a rail vehicle body, wherein the connection structure between the base frame 10 and the side wall 20 includes: a base frame 10, a side wall 20, a side beam 30, a first L-shaped connector 40 and a second L-shaped connector 50, wherein the L-shaped connector refers to a connector with an L-shaped cross section, and its length is adapted to the length of the side wall 20 and the base frame 10, wherein the base frame 10, the side wall 20 and the side beam 30 can all be made of carbon fiber composite materials, and in order to improve the noise reduction and sound insulation performance, the side wall 20 and the base frame 10 are filled with foam, wherein the side wall 20 is located above the side beam 30, and the outer side surface of the side wall 20 is provided with a downwardly extending connection plate 21, which is connected to the outer side surface of the side beam 30, and can be connected specifically by countersunk rivets, wherein a layer of cladding plate can be covered on the outer surface of the connection plate 21 to cover the outer Exposed countersunk rivets, thereby ensuring the air tightness and flatness of the vehicle body; the first vertical plate 41 of the first L-shaped connector 40 is connected to the inner side of the side wall 20, and the first horizontal plate 42 of the first L-shaped connector 40 is connected to the upper surface of the base frame 10. The first vertical plate 41 and the first horizontal plate 42 can be connected by rivets, wherein the first vertical plate 41 can be connected by two rows of rivets distributed up and down, and the first horizontal plate 42 can be connected by two rows of rivets distributed along the width direction of the base frame 10; the second vertical plate 51 of the second L-shaped connector 50 is connected to the inner side of the side beam 30, and the second horizontal plate 52 of the second L-shaped connector 50 is connected to the lower surface of the side beam 30. The second vertical plate 51 and the second horizontal plate 52 can be connected by rivets, and the second vertical plate 51 can be connected by two rows of rivets distributed up and down, and the second horizontal plate 52 can be connected by a row of rivets distributed along the length direction of the base frame 10. The base frame 10, side walls 20 and side beams 30 of the present invention are connected to each other, that is, the side walls 20 are connected to the side beams 30 and the base frame 10 respectively, and the base frame 10 is connected to the side walls 20 and the side beams 30 respectively. This connection structure can effectively improve the connection stability between the side walls 20 and the base frame 10.

[0032] In some embodiments, there is a gap between the lower surface of the side wall 20 and the upper surface of the side beam 30, so as to provide a certain adjustment space between the two, which facilitates subsequent assembly operations with deflection. The upper surface of the underframe 10 is higher than the lower surface of the side wall 20, and the lower surface of the underframe 10 is lower than the upper surface of the side beam 30. Among them, the space between the lower surface of the side wall 20 and the upper surface of the side beam 30 is filled with sealant to ensure the airtightness of the vehicle body. In addition, there is also a gap between the inner side surface of the side wall 20 and the outer side surface of the side beam 30. Regarding the dimensional matching relationship between the side wall 20 and the side beam 30, the thickness of the bottom structure of the side wall 20 is slightly greater than the thickness of the side beam 30. The inner side surfaces of the bottom structure of the side wall 20 and the side beam 30 are located in the same vertical plane. The outer side surface of the bottom structure of the side wall 20 protrudes slightly outward relative to the outer side surface of the side beam 30, so that it is relatively flat after the connecting plate 21 is connected to the side beam 30. In addition, in order to increase the internal space of the vehicle body, the thickness of the upper structure of the side wall 20 can be reduced, that is, the thickness of the upper structure of the side wall 20 is less than the thickness of the lower structure of the side wall 20. The junction of the inner side surfaces of the upper structure and the lower structure of the side wall 20 is an inclined surface.

[0033] In some embodiments, a lapping plate 11 is provided on one side of the underframe 10 close to the side beam 30. For example, a lapping plate 11 can be provided at the middle position of the outer side surface of the underframe 10. The lapping plate 11 can be integrally formed on the underframe 10. The width of the lapping plate 11 is preferably less than the width of the side beam 30, where the width refers to the direction from the outer side surface to the inner side surface of the side beam 30. The lapping plate 11 is connected to the upper surface of the side beam 30, and there is a gap between the upper surface of the lapping plate 11 and the lower surface of the side wall 20. The lapping plate 11 can be riveted, for example, a row of rivets distributed along the length direction of the side beam 3 is used for connection. During assembly, the underframe 10 can be positioned through the lapping plate 11, so the connection accuracy between the underframe 10 and the side beam 30 can be effectively improved.

[0034] In some embodiments, there are upper cavity 31, middle cavity 32 and lower cavity 33 distributed from top to bottom inside the side beam 30, that is, the side beam 30 has a structure with a square cross-section, and this structure can effectively reduce its weight. Among them, the connecting plate 21 is connected to the side walls of the upper cavity 31, middle cavity 32 and lower cavity 33 far from the underframe 10. By dispersing the connection positions of the connecting plate 21 on the side walls of different cavities, the connection stability of the connecting plate 21 can be effectively improved. That is, the connecting plate 21 can be connected to the side walls of the upper cavity 31, middle cavity 32 and lower cavity 33 respectively by three rows of rivets; the second vertical plate 51 is connected to the side wall of the middle cavity 32 far from the connecting plate 21. The second vertical plate 51 can be fixed to the side wall of the middle cavity 32 by two rows of rivets distributed up and down.

[0035] In some embodiments, a groove 12 is provided on the upper surface of the chassis 10 near the side wall 20. The width of the groove 12 is adapted to the width of the first transverse plate 42. The first transverse plate 42 is located within the groove 12. The upper surface of the first transverse plate 42 is flush with the upper surface of the chassis 10 to ensure that the inner bottom surface of the vehicle body has good flatness after the first transverse plate 42 is connected to the chassis 10. The first transverse plate 42 can be fixed to the chassis 10 by two rows of rivets, each row of rivets extending along the length of the chassis 10.

[0036] In some embodiments, a reinforcing plate 53 is provided between the lower surface of the second transverse plate 52 and the side surface of the second vertical plate 51 away from the side beam 30 . The reinforcing plate 53 can improve the supporting strength of the second L-shaped connector 50 on the base frame 10 .

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

[0038] The embodiment of the present invention further provides a rail vehicle, including the vehicle body provided by the above embodiment. Regarding the beneficial effects of the rail vehicle, reference may be made to the connection structure between the above-mentioned base frame 10 and the side wall 20 , which will not be described in detail here.

[0039] 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.

[0040] 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.

[0041] The above describes in detail the connection structure between the chassis and side walls, the vehicle body, and the 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 intended to help understand the core concept of the present invention. It should be noted that for those skilled in the art, various improvements and modifications can be made to the present invention without departing from the principles of the present invention, and such 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, characterized in that: include: A base frame (10), a side wall (20), a side beam (30), a first L-shaped connecting member (40) and a second L-shaped connecting member (50), wherein the side wall (20) is located above the side beam (30), and the outer side surface of the side wall (20) is provided with a connecting plate (21) extending downward, and the connecting plate (21) is connected to the outer side surface of the side beam (30); the first vertical plate (41) of the first L-shaped connecting member (40) is connected to the inner side surface of the side wall (20), and the first horizontal plate (42) of the first L-shaped connecting member (40) is connected to the upper surface of the base frame (10); the second vertical plate (51) of the second L-shaped connecting member (50) is connected to the inner side surface of the side beam (30), and the second horizontal plate (52) of the second L-shaped connecting member (50) is connected to the lower surface of the side beam (30).

2. The connection structure between the base frame and the side wall according to claim 1, characterized in that: A gap is left between the lower surface of the side wall (20) and the upper surface of the side beam (30).

3. The connection structure between the base frame and the side wall according to claim 2, characterized in that: The space between the lower surface of the side wall (20) and the upper surface of the side beam (30) is filled with sealant.

4. The connection structure between the base frame and the side wall according to claim 2, characterized in that: A lap plate (11) is provided on one side of the base frame (10) close to the side beam (30), the lap plate (11) is connected to the upper surface of the side beam (30), and a gap is left between the upper surface of the lap plate (11) and the lower surface of the side wall (20).

5. The connection structure between the base frame and the side wall according to claim 4, characterized in that: The side beam (30) has an upper cavity (31), a middle cavity (32) and a lower cavity (33) distributed from top to bottom.

6. The connection structure between the base frame and the side wall according to claim 5, characterized in that: The connecting plate (21) is connected to the side walls of the upper cavity (31), the middle cavity (32) and the lower cavity (33) away from the bottom frame (10), and the second vertical plate (51) is connected to the side wall of the middle cavity (32) away from the connecting plate (21).

7. The connection structure between the base frame and the side wall according to claim 1, characterized in that: A groove (12) is provided on the upper surface of the base frame (10) near the side wall (20), the first transverse plate (42) is located in the groove (12), and the upper surface of the first transverse plate (42) is flush with the upper surface of the base frame (10).

8. The connection structure between the base frame and the side wall according to claim 1, characterized in that: A reinforcing plate (53) is provided between the lower surface of the second transverse plate (52) and the side surface of the second vertical plate (51) away from the side beam (30).

9. A vehicle body, characterized in that: The connecting structure comprising the base frame and the side wall according to any one of claims 1 to 8.

10. A rail vehicle, characterized in that: Comprising the vehicle body according to claim 9.

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