A bogie frame for a biaxial train

Abstract

The present invention discloses a bogie frame and a train for a double - axle train, which includes two frame side beams and two frame end beams forming a square shape. An installation platform extending to one side is provided in the middle of the frame side beam, and an air spring mounting seat is arranged on the installation platform; a drawbar seat is further provided on the upper surface of the middle part of the frame side beam; guide wheel mounting seats for mounting guide wheels are arranged at both ends of the frame side beam; brake mounting seats located on the upper surface of the frame side beam are also arranged at both ends of the frame side beam; a motor mounting seat is arranged in the middle of the frame side beam; and a number of primary guide cylinders for mounting primary springs are further arranged on the frame side beam. By integrating the functions of the guide frame and the suspension into a multi - functional double - axle bogie frame, the present invention reduces the weight of the bogie, effectively improves the structural compactness, and at the same time reduces the number of welds on the frame, reduces the welding deformation and stress concentration of the material, and further improves the quality and safety of the rail vehicle.

Description

Technical Field

[0001] The invention relates to a double-axle train bogie frame and a train, belonging to the technical field of rail transit vehicles. Background Art

[0002] With the rapid development of cities, people have more and more stringent requirements on traffic, including urban noise pollution. Compared with traditional steel wheel rail subway, rubber tire subway has the characteristics of stable driving, low noise and small vibration, which means it has a wide application prospect.

[0003] Chinese invention patent CN111055868A discloses a single-axle bogie frame, including a guide frame and a suspension; the guide frame includes two guide frame side beams and two guide frame end beams formed in a square shape, and the four corners of the guide frame are provided with air spring mounting seats; the middle upper surface of the guide frame side beam has an axle bridge mounting seat; the suspension includes two suspension side beams and two suspension end beams, and the four corners of the suspension are provided with air spring mounting seats; the guide frame and the suspension are connected by air springs, and the suspension is located above the guide frame. However, this frame is relatively large in size, and is a separate structure of the guide frame and the suspension, which occupies a large installation space of the whole vehicle. Summary of the invention

[0004] The present invention aims to provide a double-axle train bogie frame and train, which eliminates the crossbeam structure and integrates the guide frame with the suspension, so that the entire frame structure is simple, saves the installation space of the whole vehicle and the design space of the bogie, and realizes the lightweight design of the bogie.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A double-axle train bogie frame comprises two frame side beams and two frame end beams forming a U shape, a placement platform extending to one side is arranged in the middle of the frame side beam, and an air spring mounting seat is arranged on the placement platform; a traction rod seat is also arranged on the upper surface of the middle part of the frame side beam; guide wheel mounting seats for mounting guide wheels are arranged at both ends of the frame side beam; brake mounting seats located on the upper surface of the frame side beam are also arranged at both ends of the frame side beam; a motor mounting seat is arranged in the middle of the frame side beam; and a plurality of primary guide cylinders for mounting primary springs are also arranged on the frame side beam.

[0007] Thus, in the present invention, by integrating the guide frame and the suspension function into a multi-functional dual-axis steering frame, a dual-axis motor can be installed on the motor mounting seat in the middle of the frame to drive the front and rear wheel systems; the air spring mounting seat on the frame is connected to the air spring at the bottom of the vehicle body. This effectively improves the structural compactness, reduces the number of welds on the frame, minimizes the welding deformation and stress concentration of the material, and further improves the quality and safety of the rail vehicle.

[0008] According to the embodiments of the present invention, the present invention can be further optimized, and the following are the technical solutions formed after optimization:

[0009] Specifically, both ends of the frame side beam are provided with cantilever beams extending to one side for installing the guide wheel mounting seats, and the guide wheel mounting seats are installed at the ends of the cantilever beams.

[0010] Specifically, a transverse stop seat is further provided on the upper surface of the middle part of the frame side beam; a first lifting seat is provided on the left side of the transverse stop seat and a drawbar seat is provided on the right side thereof, or a first lifting seat is provided on the right side of the transverse stop seat and a drawbar seat is provided on the left side thereof.

[0011] In the top view direction, a first lifting seat is provided on the left side of the transverse stop seat on the upper frame side beam and a drawbar seat is provided on the right side thereof; a first lifting seat is provided on the right side of the transverse stop seat on the lower frame side beam and a drawbar seat is provided on the left side thereof.

[0012] Specifically, both the drawbar seat and the first lifting seat are arranged on the upper surfaces of the upper and lower two frame side beams in a skew-symmetric manner.

[0013] Specifically, a second lifting seat is provided on one side of the brake mounting seat close to the placement table.

[0014] Specifically, a transverse shock absorber mounting seat is provided on one side of the air spring mounting seat, and a vertical shock absorber mounting seat is provided on the other side of the air spring mounting seat.

[0015] Specifically, in the top view direction, both the transverse shock absorber mounting seat and the vertical shock absorber mounting seat are arranged on the upper surfaces of the upper and lower two placement tables in a skew-symmetric manner.

[0016] Specifically, both the primary guide tube and the motor mounting seat are symmetrically arranged on the upper and lower two frame side beams.

[0017] Specifically, the motor mounting seat is arranged inside the frame.

[0018] Based on the same inventive concept, the present invention also provides a train, including the biaxial train bogie frame described above, and the biaxial train bogie frame is connected to the air spring at the bottom of the train car body through the air spring mounting seat in the middle.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: by integrating the functions of the guide frame and the suspension into a multi-functional biaxial bogie frame, the weight of the bogie is reduced, the structural compactness is effectively improved, and at the same time, the number of welds on the frame is reduced, the welding deformation and stress concentration of the material are reduced, and the quality and safety of the rail vehicle are further improved. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the present invention.

[0021] In the figure

[0022] 1 - Frame side beam; 1a - Suspension beam; 2 - Frame end beam; 3 - Placement platform; 4 - Air spring mounting seat; 41 - Lateral shock absorber mounting seat; 42 - Vertical shock absorber mounting seat; 5 - Drawbar seat; 6 - Guide wheel mounting seat; 7 - Brake mounting seat; 8 - Motor mounting seat; 9 - Primary guide tube; 10 - Lateral stop seat; 11 - First lifting seat; 12 - Second lifting seat. Detailed Embodiments

[0023] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. For the sake of convenience of description, words such as "upper", "lower", "left", and "right" hereinafter only represent the same directions as the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure.

[0024] As Figure 1 shown, the biaxial train bogie frame of this embodiment includes two frame side beams 1 and two frame end beams 2 that form a square shape. An extension placement platform 3 is provided in the middle of the frame side beam 1, and an air spring mounting seat 4 is provided on the placement platform 3; a drawbar seat 5 is further provided on the upper surface of the middle part of the frame side beam 1; guide wheel mounting seats 6 for installing guide wheels are provided at both ends of the frame side beam 1; brake mounting seats 7 located on the upper surface of the frame side beam 1 are also provided at both ends of the frame side beam 1; a motor mounting seat 8 is provided in the middle of the frame side beam 1; and a plurality of primary guide tubes 9 for installing primary springs are provided on the frame side beam 1.

[0025] The guide wheel mounting seat 6 is welded to the outer side surface of the end of the frame side beam 1 and is connected to the guide wheel; in this embodiment, there are four guide wheel mounting seats 6, which are respectively installed at both ends of the two frame side beams 1, playing a guiding role in the advancing direction of the train during its running.

[0026] The brake mounting seat 7 is welded to the upper surface of the end of the frame side beam 1 and is connected to the brake of the bogie, playing a braking role during the running of the train. There are four brake mounting seats 7, which are respectively installed on the upper surfaces at both ends of the two frame side beams 1.

[0027] In the top view direction, the air spring mounting seat 4 is welded to the placement table 3 at the middle position on the middle upper surface of the frame side beam 1 and is connected to the air spring of the entire bogie. In this embodiment, there are two air spring mounting seats 4, which are respectively on the upper and lower placement tables 3. The drawbar seat 5 is welded to the middle position on the upper surface of the frame side beam 1 and is connected to the drawbar of the entire bogie, playing a traction role for the frame.

[0028] The motor mounting seat 8 is welded to the middle inner side surface of the frame side beam 1 and is connected to the motor of the entire bogie, playing a supporting role for the motor of the bogie; the frame side beam 15 and the frame end beam 16 are connected by welding.

[0029] Four primary guide cylinders 9 are horizontally passed between the upper and lower cover plates of the frame side beam 1 by welding and are connected to the primary suspension device of the entire bogie, connecting the frame and the bogie as a whole.

[0030] Specifically, both ends of the frame side beam 1 are provided with cantilever beams 1a extending to one side for installing the guide wheel mounting seats, and the guide wheel mounting seats 6 are installed at the ends of the cantilever beams 1a.

[0031] The middle upper surface of the frame side beam 1 is further provided with a lateral stop seat 10; in the top view direction, a first lifting seat 11 is arranged on the left side of the lateral stop seat 10 on the upper frame side beam 1, and the drawbar seat 5 is arranged on its right side; a first lifting seat 11 is arranged on the right side of the lateral stop seat 10 on the lower frame side beam 1, and the drawbar seat 5 is arranged on its left side. The lateral stop seat 10 is welded to the middle position on the upper surface of the frame side beam 1, playing a limiting and protecting role during the running of the entire bogie.

[0032] In order to make the force of the bogie more balanced, both the drawbar seat 5 and the first lifting seat 11 are arranged on the upper surfaces of the upper and lower two frame side beams 1 in a skew-symmetric manner.

[0033] A second lifting seat 12 is arranged on one side of the brake mounting seat 7 close to the placement table 3 for lifting the bogie frame.

[0034] On one side of the air spring mounting seat 4, a lateral shock absorber mounting seat 41 is provided, and on the other side of the air spring mounting seat 4, a vertical shock absorber mounting seat 42 is provided; the lateral shock absorber mounting seat 41 is welded to the edge of the placement table 3 on the upper surface of the middle of the frame side beam 1 and is connected to the secondary lateral shock absorber of the entire bogie; the vertical shock absorber mounting seat 42 is welded to the edge of the upper surface of the middle of the frame side beam 1 and is connected to the secondary vertical shock absorber of the entire bogie.

[0035] In order to make the shock absorption force of the bogie more balanced, both the lateral shock absorber mounting seat 41 and the vertical shock absorber mounting seat 42 are arranged on the upper surfaces of the upper and lower placement tables 3 in a skew-symmetric manner.

[0036] The primary guide cylinder 9 and the motor mounting seat 8 are both symmetrically arranged on the upper and lower frame side beams 1. The motor mounting seat 8 is arranged on the inner side of the frame.

[0037] Based on the same inventive concept, the present invention also provides a train, including the dual-axis train bogie frame as described above, and the dual-axis train bogie frame is connected to the air spring at the bottom of the train car body through the air spring mounting seat 4 in the middle.

[0038] By integrating the functions of the guide frame and the suspension into a multi-functional dual-axis bogie frame, the present invention reduces the weight of the bogie, effectively improves the structural compactness, and at the same time reduces the number of welds on the bogie frame, reduces the welding deformation and stress concentration of the material, and further improves the quality and safety of the rail vehicle.

[0039] The content clarified in the above embodiments should be understood that these embodiments are only used to illustrate the present invention more clearly, rather than to limit the scope of the present invention. After reading the present invention, various equivalent forms of modification of the present invention by those skilled in the art all fall within the scope defined by the appended claims of this application.

Claims

1. A bogie frame for a biaxial train, comprising two frame side beams (1) and two frame end beams (2) forming a rectangular shape, characterized in that: A mounting platform (3) extending to one side is provided in the middle of the frame side beam (1), and an air spring mounting seat (4) is provided on the mounting platform (3); a drawbar seat (5) is further provided on the upper surface in the middle of the frame side beam (1); Guide wheel mounting seats (6) for mounting guide wheels are provided at both ends of the frame side beam (1); brake mounting seats (7) located on the upper surface of the frame side beam (1) are further provided at both ends of the frame side beam (1); A motor mounting seat (8) is provided in the middle of the frame side beam (1); A plurality of primary guide cylinders (9) for mounting primary springs are further provided on the frame side beam (1).

2. The bogie frame of the biaxial train according to claim 1, wherein: Overhang beams (1a) extending to one side for mounting guide wheel mounting seats are provided at both ends of the frame side beam (1), and the guide wheel mounting seats (6) are mounted at the ends of the overhang beams (1a).

3. The bogie frame of the biaxial train according to claim 1, characterized in that: A lateral stop seat (10) is further provided on the upper surface in the middle of the frame side beam (1); a first lifting seat (11) is provided on the left side of the lateral stop seat (10), and the drawbar seat (5) is provided on the right side of the lateral stop seat (10), or the first lifting seat (11) is provided on the right side of the lateral stop seat (10), and the drawbar seat (5) is provided on the left side of the lateral stop seat (10).

4. The bogie frame of the biaxial train according to claim 1, characterized in that: A second lifting seat (12) is provided on one side of the brake mounting seat (7) close to the mounting platform (3).

5. The bogie frame of the biaxial train according to claim 1, characterized in that: A lateral shock absorber mounting seat (41) is provided on one side of the air spring mounting seat (4), and a vertical shock absorber mounting seat (42) is provided on the other side of the air spring mounting seat (4).

6. The bogie frame of the biaxial train according to claim 5, characterized in that: Both the lateral shock absorber mounting seat (41) and the vertical shock absorber mounting seat (42) are arranged on the upper surfaces of the upper and lower two mounting platforms (3) in a skew-symmetric manner.

7. The bogie frame of the biaxial train according to claim 1, characterized in that: Both the primary guide cylinders (9) and the motor mounting seat (8) are symmetrically arranged on the upper and lower two frame side beams (1).

8. The bogie frame of the biaxial train according to claim 1, characterized in that: The motor mounting seat (8) is arranged inside the frame.

9. A train, characterized in that: It includes a bogie frame for a double-axis train according to any one of claims 1-8, and the bogie frame for the double-axis train is connected to an air spring at the bottom of the train car body through the air spring mounting seat (4) in the middle.

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