Rail transit vehicle cab side beam

Abstract

The utility model discloses a rail transit vehicle cab side beam, including side beam body, the side beam body sets up between driver's room door frame composition and driver's room main longitudinal beam, the side beam body includes support beam, upper part reinforcing structure and lower part reinforcing structure, upper part reinforcing structure and lower part reinforcing structure fixed connection in the both ends of the same side of support beam respectively. The utility model provides a rail transit vehicle cab side beam, has higher strength, can satisfy the strength requirement of the multiple rail working condition.

Description

Technical Field

[0001] This utility model relates to the technical field of rail vehicle body structure equipment, and in particular to a side beam for the driver's cab of a rail transit vehicle. Background Technology

[0002] With the development of high speed, energy saving, and intelligence, modern rail vehicle fronts are showing an increasingly obvious trend towards streamlined design. The streamlined design of the front leads to a longer and more pointed driver's cab, which may result in insufficient strength and rigidity, posing a challenge to the cab's strength design. In existing rail transit equipment, the side beams connecting the driver's cab door pillar and the main longitudinal beam are generally single profiles, such as the support side beam described in CN 103661437 B, which is a single U-shaped extruded aluminum alloy profile. Some vehicles have added reinforcing plates to the diagonal braces, such as the support side beam in CN 208325214 U, which has a single reinforcing plate added. Due to customer requirements, the double-track driving point is located near the diagonal brace of the driver's cab, resulting in insufficient strength of existing driver's cab support side beam structures to meet the strength calculations for double-track operation. Therefore, there is an urgent need to design a driver's cab support side beam that meets the strength requirements. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a side beam for the driver's cab of a rail transit vehicle, which has high strength and can meet the strength requirements of double-track operation.

[0004] The technical solution provided by this utility model is as follows: A side beam for a driver's cab of a rail transit vehicle includes a side beam body, which is disposed between the driver's cab door frame and the main longitudinal beam of the driver's cab. The side beam body includes a support beam, an upper reinforcing structure and a lower reinforcing structure, which are respectively fixedly connected to the two ends of the same side of the support beam.

[0005] Preferably, welding pads are provided between the side beam body and the driver's cab door frame, between the side beam body and the main longitudinal beam of the driver's cab, between the support beam and the upper reinforcing structure, and between the support beam and the lower reinforcing structure.

[0006] Preferably, the support beam is an integral U-shaped cross-section with a curved surface along its length to accommodate the driver's cab hood.

[0007] Preferably, the support beam has a U-shaped groove in the middle.

[0008] Preferably, the upper reinforcing structure and the lower reinforcing structure have the same structure, and the cross-section of both the upper reinforcing structure and the lower reinforcing structure is a "π" shaped structure.

[0009] Preferably, both the upper reinforcing structure and the lower reinforcing structure have a U-shaped groove in the middle.

[0010] Preferably, both the upper reinforcing structure and the lower reinforcing structure are provided with wing plates.

[0011] Preferably, the welds between the side beam body and the driver's cab door frame, and between the side beam body and the main longitudinal beam of the driver's cab, are all V-shaped structures.

[0012] This invention has the following advantages over the prior art: The side beam of the driver's cab of this utility model is composed of a support beam, an upper reinforcing structure and a lower reinforcing structure. The side beam body is significantly improved by three-dimensional reinforcement, and it has the characteristics of strong integrity and convenient production. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the side beam of the driver's cab of a rail transit vehicle in an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of the side beam of the driver's cab of the rail transit vehicle after installation in an embodiment of this utility model; Figure 3 for Figure 2 A magnified view of a portion of the image; Figure 4 This is a side view of the side beam of the driver's cab of a rail transit vehicle in an embodiment of this utility model; Figure 5 for Figure 4 AA section view in the middle; Figure 6 This is a schematic diagram of the supporting beam in an embodiment of the present invention; Figure 7 for Figure 6 BB section view in the middle; Figure 8 This is a schematic diagram of the lower reinforcing structure in an embodiment of the present invention; Figure 9 This is a side view of the lower reinforcing structure in an embodiment of the present invention.

[0015] Figure label: 1. Side beam body; 11. Support beam; 111. U-shaped groove one; 12. Upper reinforcing structure; 13. Lower reinforcing structure; 2. Driver's cab door frame assembly; 3. Driver's cab main longitudinal beam; 4. Welded pad; 41. Welded pad between side beam body and driver's cab main longitudinal beam; 42. Welded pad between support beam and upper reinforcing structure; 43. Welded pad between support beam and lower reinforcing structure; 44. Welded pad between support beam and driver's cab door frame assembly; 5. U-shaped groove two; 6. Wing plate. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] like Figure 1-9 As shown, this utility model embodiment provides a side beam for a driver's cab of a rail transit vehicle, including a side beam body 1. The side beam body 1 is disposed between the driver's cab door frame assembly 2 and the driver's cab main longitudinal beam 3. The side beam body 1 includes a support beam 11, an upper reinforcing structure 12 and a lower reinforcing structure 13. The upper reinforcing structure 12 and the lower reinforcing structure 13 are respectively fixedly connected to the two ends of the same side of the support beam 11.

[0018] In this embodiment, welding pads 4 are provided between the side beam body 1 and the driver's cab door frame assembly 2, between the side beam body 1 and the driver's cab main longitudinal beam 3, between the support beam 11 and the upper reinforcing structure 12, and between the support beam 11 and the lower reinforcing structure 13. The welding pads 4 ensure that the weld is fully penetrated. The welding pads 4 are spot welded to the support beam 11. Then, the support beam 11 is welded to the upper reinforcing structure 12 and the lower reinforcing structure 13 respectively. Finally, the upper part of the side beam body 1 is welded to the driver's cab main longitudinal beam 3, and the lower part of the side beam body 1 is welded to the driver's cab door frame assembly 2.

[0019] In this embodiment, the support beam 11 is an integral U-shaped cross-section with a curved surface along its length to accommodate the driver's cab hood. The support beam 11 is made from a single U-shaped extruded aluminum alloy profile, manufactured through cold bending and machining processes. The bent shape of the support beam better adapts to the curved surface of the hood, providing better support and enclosure. The bending radius of the U-shaped support beam 11 can be adjusted according to the relative positions of the cab door pillar and the main longitudinal beam 3 of the driver's cab. A U-shaped groove 111 is provided in the middle of the support beam 11, which serves to reduce weight and release stress.

[0020] In this embodiment, the upper reinforcing structure 12 and the lower reinforcing structure 13 have the same structure, and the cross-section of the upper reinforcing structure 12 and the lower reinforcing structure 13 is a "π" shaped structure.

[0021] In this embodiment, both the upper reinforcing structure 12 and the lower reinforcing structure 13 have U-shaped grooves 5 in the middle, which serve to reduce weight and release stress.

[0022] In this embodiment, both the upper reinforcing structure 12 and the lower reinforcing structure 13 are provided with wing plates 6. The edges of the reinforcing structures are machined to form wing plates 6, which make the arc transition uniform and beautiful, and at the same time make the stress transition uniform.

[0023] In this embodiment, the welds between the side beam body 1 and the driver's cab door frame 2, and between the side beam body 1 and the main longitudinal beam of the driver's cab 2, are all V-shaped structures, which can effectively ensure strength.

[0024] The processing and installation process of the side beam of the driver's cab of the rail transit vehicle in this embodiment is as follows: S1. Machining the support beam 1 to create the grooves required for welding the upper reinforcing structure 12 and the lower reinforcing structure 11, and machining the U-shaped groove 111, and then bending it according to the required bending radius; S2, according to Figure 8 , 9 The upper reinforcing structure 12 and the lower reinforcing structure 13 are manufactured from the patterns of the upper and lower reinforcing structures 12. S3. Process the welding pad 41 between the side beam body 1 and the main longitudinal beam 3 of the driver's cab, the welding pad 42 between the support beam 11 and the upper reinforcing structure 12, the welding pad 43 between the support beam 11 and the lower reinforcing structure 13, and the welding pad 44 between the support beam 11 and the driver's cab door frame assembly 2, and spot weld them to the main structure; (among which, the welding pad 41 between the side beam body 1 and the main longitudinal beam 3 of the driver's cab, and the welding pad 44 between the side beam body 1 and the driver's cab door frame assembly 2 are welding pads processed from thick plates; the welding pad 42 between the support beam 11 and the upper reinforcing structure 12, and the welding pad 43 between the support beam 11 and the lower reinforcing structure 13 are butt welding pads processed from profiles.) S4. Weld the support beam 11 to the upper reinforcing structure 12 and the lower reinforcing structure 13 respectively; S5. Finally, the lower part of the welded side beam body 1 is welded to the driver's cab door frame 2, and the upper part of the side beam body 1 is welded to the main longitudinal beam 3 of the driver's cab. The weld is a V-shaped weld with a backing plate, which can effectively ensure the strength. S6. After the above steps S1 to S5, the side beam body 1 can be fixed on the driver's cab of the vehicle body.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A side beam for a driver's cab of a rail transit vehicle, comprising a side beam body, wherein the side beam body is disposed between the driver's cab door frame and the main longitudinal beam of the driver's cab, characterized in that, The side beam body includes a support beam, an upper reinforcing structure, and a lower reinforcing structure, wherein the upper reinforcing structure and the lower reinforcing structure are respectively fixedly connected to the two ends of the same side of the support beam.

2. The side beam of the driver's cab of a rail transit vehicle according to claim 1, characterized in that, Welding pads are provided between the side beam body and the driver's cab door frame, between the side beam body and the main longitudinal beam of the driver's cab, between the support beam and the upper reinforcing structure, and between the support beam and the lower reinforcing structure.

3. The side beam of the driver's cab of a rail transit vehicle according to claim 1, characterized in that, The support beam is an integral U-shaped structure with a curved surface along its length to accommodate the driver's cab hood.

4. The side beam of the driver's cab of a rail transit vehicle according to claim 1, characterized in that, The support beam has a U-shaped groove in the middle.

5. The side beam of the driver's cab of a rail transit vehicle according to any one of claims 1-4, characterized in that, The upper and lower reinforcing structures have the same structure, and both the upper and lower reinforcing structures have a "π" shaped cross-section.

6. The side beam of the driver's cab of a rail transit vehicle according to claim 5, characterized in that, Both the upper and lower reinforcing structures have U-shaped grooves in their middle sections.

7. The side beam of the driver's cab of a rail transit vehicle according to claim 5, characterized in that, Both the upper and lower reinforcing structures are equipped with wing plates.

8. The side beam of the driver's cab of a rail transit vehicle according to any one of claims 1-4, characterized in that, The welds between the side beam body and the driver's cab door frame, and between the side beam body and the main longitudinal beam of the driver's cab, are all V-shaped structures.

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