Lightweight railway vehicle bogie frame and bogie

Abstract

The bogie frame comprises two side beams (1) and two cross beams, the two cross beams are arranged in the middles of the two side beams side by side, the two ends of the two cross beams are connected with the side beams respectively, and lower cover plates (11), vertical plates (12) and upper cover plates (13) of the side beams are connected to form a box beam structure. A brake installation opening and an anti-snaking shock absorber installation opening are formed in an outer side vertical plate of the side beam, a brake installation seat (17) is installed in the brake installation opening in an embedded mode, an anti-snaking shock absorber installation seat (18) is installed in the anti-snaking shock absorber installation opening in an embedded mode, a gearbox hanging rod installation opening is formed in an inner side vertical plate of the side beam, and a gearbox hanging rod installation seat (18) is installed in the gearbox hanging rod installation opening. And a gear box suspender mounting seat (19) is embedded in the gear box suspender mounting opening. According to the utility model, the strength of the framework and each mounting seat can be ensured, and the light weight can be realized.

Description

Technical Field

[0001] This utility model relates to rail transit vehicles, specifically to a lightweight rail vehicle bogie frame and bogie. Background Technology

[0002] Traditional rail transit vehicle bogies are mostly of the external axle box type. This type of bogie has a large lateral span of the primary axle box, resulting in a large lateral width of the frame and a significant weight. With the diversification of rail transit types, various internal axle box bogies are constantly emerging in addition to the traditional external axle box type. Internal axle box bogies have a significantly smaller lateral span of the primary axle box compared to traditional external axle box bogies, allowing for a smaller lateral width and lighter frame, making it an effective way to achieve bogie and frame weight reduction. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a lightweight rail vehicle bogie frame and bogie with simple structure and good manufacturability.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A lightweight rail vehicle bogie frame includes two side beams and two cross beams. The two side beams are arranged side by side, and the two cross beams are arranged side by side at the middle of the two side beams. The two ends of the two cross beams are respectively connected to the side beams. Each side beam includes a lower cover plate, a vertical plate, and an upper cover plate. The lower cover plate and the upper cover plate are arranged parallel to each other. The two sides of the lower cover plate and the upper cover plate are respectively connected by the vertical plate to form a box beam structure. A brake mounting port and an anti-hunting damper mounting port are provided on the outer vertical plate of the side beam. A brake mounting seat is embedded in the brake mounting port, and an anti-hunting damper mounting seat is embedded in the anti-hunting damper mounting port. A gearbox boom mounting port is provided on the inner vertical plate of the side beam, and a gearbox boom mounting seat is embedded in the gearbox boom mounting port.

[0006] This utility model provides brake mounting ports and anti-hunting damper mounting ports on the outer side upright plate of the side beam. A brake mounting seat is embedded in the brake mounting port, and an anti-hunting damper mounting seat is embedded in the anti-hunting damper mounting port. A gearbox hanger mounting port is provided on the inner side upright plate of the side beam, and a gearbox hanger mounting seat is embedded in the gearbox hanger mounting port. This not only reduces and saves the installation space for the brake mounting seat, anti-hunting damper mounting seat, and gearbox hanger mounting seat, but also ensures the installation strength of these components. Furthermore, the overall structure is simple and has good manufacturability.

[0007] Furthermore, the vertical section height of the side beam gradually decreases from the middle to both ends, which reduces the self-weight of the side beam while meeting the strength requirements, thus achieving the goal of lightweighting the frame.

[0008] Furthermore: a primary device mounting base is welded to the end of the side beam, and a primary spring guide cylinder and a primary vertical damper mounting interface are provided on the primary device mounting base.

[0009] Furthermore, the upper cover plate is provided with two types of air spring mounting seats in the middle, which can meet the installation requirements of air spring span of 1130mm and air spring span of 1600mm.

[0010] Furthermore, a tie rod mounting seat and an anti-roll device mounting seat are provided in the middle of the lower cover plate.

[0011] Furthermore, the crossbeam comprises a crossbeam steel pipe, with connecting seats welded to both ends of the crossbeam steel pipe, and the crossbeam steel pipe is an integral forged round steel pipe structure. A motor mounting seat, a secondary vertical vibration damper mounting seat, and a traction rod seat are welded onto the crossbeam steel pipe, and the secondary vertical vibration damper mounting seat and the traction rod seat are integrally formed. This welded structure results in a very small axial length of the crossbeam steel pipe and simplifies the structure of each mounting seat as much as possible, significantly reducing the self-weight of the crossbeam and achieving the goal of lightweighting.

[0012] Furthermore, the lower cover plate, vertical plate, and upper cover plate of the side beam are welded together with the connecting seat to ensure the connection strength between the side beam and the cross beam.

[0013] Based on the same inventive concept, this utility model also provides a lightweight rail vehicle bogie, which includes the aforementioned lightweight rail vehicle bogie frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) This utility model reduces its own weight while meeting the requirements of structural strength and function, thus achieving the goal of lightweighting.

[0016] 2) The welded structure of the crossbeam of this utility model makes the axial length of the crossbeam steel pipe very small, and simplifies the structure of each mounting seat as much as possible, which greatly reduces the weight of the crossbeam and achieves the purpose of lightweighting. Attached Figure Description

[0017] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view structural diagram of the bogie frame of this utility model.

[0019] Figure 2 This is a top view of the bogie frame of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the bogie frame of this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1 - Figure 3 One embodiment of the steering frame of this utility model consists of two side beams 1 and two cross beams 2 welded together. The two side beams 1 are arranged side by side, and the two cross beams 2 are arranged side by side in the middle of the two side beams 1, with the two ends of the two cross beams 2 respectively welded to the side beams 1.

[0025] Reference Figure 1 and Figure 2The side beam 1 is a box-shaped beam structure assembled from a lower cover plate 11, a vertical plate 12, an upper cover plate 13, and a primary winding device mounting seat 14. The lower cover plate 11 and the upper cover plate 13 are arranged parallel to each other, and their sides are connected via the vertical plate 12. A primary winding tie rod mounting seat 15 and an anti-roll device mounting seat 16 for mounting the axle box are provided in the middle of the lower cover plate 11. A brake mounting port and an anti-hunting damper mounting port are provided on the outer vertical plate 12 of the side beam 1. A brake mounting seat 17 is embedded in the brake mounting port, and an anti-hunting damper mounting seat 18 is embedded in the anti-hunting damper mounting port. The brake mounting seat 17 and the anti-hunting damper mounting seat 18 are respectively butt-welded to the corresponding inner vertical plate 12. A gearbox hanger mounting port is provided on the inner vertical plate 12 of the side beam 1. A gearbox hanger mounting seat 19 is embedded in the gearbox hanger mounting port, and the gearbox hanger mounting seat 19 is welded to the opposite outer vertical plate 12. Two types of air spring mounting seats 110 are provided in the middle of the upper cover plate 13, which can meet the installation requirements of air spring spans of 1130mm and 1600mm. A primary suspension device mounting seat 14 is welded to the end of the side beam 1. The primary suspension device mounting seat 14 is provided with a primary spring guide cylinder and a primary vertical damper mounting interface.

[0026] To achieve the goal of lightweight design, the vertical section height of side beam 1 gradually decreases from the middle of the side beam to both ends.

[0027] Reference Figure 2 and Figure 3 The crossbeam 2 is a structure welded from a crossbeam steel pipe 21, a connecting seat 22, a motor mounting seat 23, a secondary vertical vibration damper mounting seat 24, and a traction rod seat 25. The crossbeam steel pipe 21 adopts a simple and reliable one-piece forged round steel pipe structure, which makes the axial length of the crossbeam steel pipe 21 very small. The connecting seats 22 are welded to both ends of the crossbeam steel pipe 21. The motor mounting seat 23, the secondary vertical vibration damper mounting seat 24, and the traction rod seat 25 are welded to the circumference of the crossbeam steel pipe 21. The motor mounting seat 23, the secondary vertical vibration damper mounting seat 24, and the traction rod seat 25 can simplify the structure as much as possible and reduce the self-weight of the crossbeam to a large extent.

[0028] To ensure the connection strength between the side beam 1 and the cross beam 2, the lower cover plate 11, the vertical plate 12, and the upper cover plate 13 of the side beam 1 are welded together with the connecting seat 22.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model should fall within the protection scope of the technical solution of this utility model.

Claims

1. A lightweight rail vehicle bogie frame, comprising two side beams (1) and two cross beams, characterized in that: Two side beams (1) are arranged side by side, and two cross beams are arranged side by side in the middle of the two side beams. The two ends of the two cross beams are respectively connected to the side beams. The side beam includes a lower cover plate (11), a vertical plate (12), and an upper cover plate (13). The lower cover plate (11) and the upper cover plate (13) are arranged parallel to each other. The two sides of the lower cover plate and the upper cover plate are respectively connected by the vertical plate to form a box beam structure. A brake mounting port and an anti-hunting damper mounting port are provided on the outer vertical plate of the side beam. A brake mounting seat (17) is embedded in the brake mounting port. An anti-hunting damper mounting seat (18) is embedded in the anti-hunting damper mounting port. A gearbox hanger mounting port is provided on the inner vertical plate of the side beam. A gearbox hanger mounting seat (19) is embedded in the gearbox hanger mounting port.

2. The lightweight rail vehicle bogie frame according to claim 1, characterized in that: The vertical section height of the side beam gradually decreases from the middle of the side beam towards both ends.

3. The lightweight rail vehicle bogie frame according to claim 1, characterized in that: The end of the side beam is welded with a primary device mounting base (14), and the primary device mounting base (14) is provided with a primary spring guide tube and a primary vertical damper mounting interface.

4. The lightweight rail vehicle bogie frame according to claim 1, characterized in that: Two types of air spring mounting seats (110) are provided in the middle of the upper cover plate (13).

5. The lightweight rail vehicle bogie frame according to claim 1, characterized in that: The lower cover plate (11) is provided with a tie rod mounting seat (15) and an anti-roll device mounting seat (16) in the middle.

6. The lightweight rail vehicle bogie frame according to claim 1, characterized in that: The crossbeam (2) includes a crossbeam steel pipe (21), and connecting seats (22) are welded to both ends of the crossbeam steel pipe (21). The crossbeam steel pipe is an integral forged round steel pipe structure.

7. The lightweight rail vehicle bogie frame according to claim 6, characterized in that: The motor mounting base (23), the secondary vertical damper mounting base (24), and the traction rod base (25) are welded onto the crossbeam steel pipe (21), and the secondary vertical damper mounting base (24) and the traction rod base (25) are integrally formed.

8. The lightweight rail vehicle bogie frame according to claim 6, characterized in that: The lower cover plate (11), the upright plate (12), and the upper cover plate (13) of the side beam (1) are welded together with the connecting seat (22).

9. A lightweight rail vehicle bogie, characterized in that: Includes the lightweight rail vehicle bogie frame as described in any one of claims 1-8.

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