An outer wind shield and maglev train

Abstract

The utility model discloses an outer wind baffle and magnetic suspension train relates to rail transit vehicle technical field, and the outer wind baffle includes a plurality of sections of flexible capsules that are connected in order, and all flexible capsules are connected to form a closed annular capsule, the annular capsule is used for filling the gap between the car end frame and the suspension frame apron, forms dynamic seal, realizes the aerodynamic performance of optimization whole car. At least one flexible capsule is integrally provided with a blocking block, which is used for shielding the gap between the annular capsule and the suspension frame apron, so that the car end area forms a closed smooth connection, effectively suppresses the flow separation caused by the structure mutation, avoids the vortex resistance and the aerodynamic noise generated at the gap, reduces the aerodynamic resistance, and improves the aerodynamic performance of the whole car.

Description

Technical Field

[0001] This utility model relates to the field of rail transit vehicle technology, and in particular to an outer windshield and a maglev train. Background Technology

[0002] As a crucial component connecting the train carriages, the exterior windshield not only possesses excellent longitudinal flexibility and lateral and vertical flexibility to adapt to vibrations during train operation and ensure safe passage through curves and switches, but also effectively prevents external air, dust, and rainwater from seeping into the carriages, maintaining interior cleanliness and passenger comfort. Furthermore, it reduces air resistance during high-speed train operation, improving operational efficiency. Therefore, optimizing the exterior windshield design plays a key role in enhancing the train's aerodynamic performance, operational safety, and passenger comfort.

[0003] Taking maglev trains as an example, the outer windshield of existing maglev trains adopts a split capsule connection structure, which is composed of multiple flexible capsules connected by connectors. This dynamic sealing design allows the train to generate relative displacement when turning or running on undulating tracks, avoiding rigid friction or structural damage. The split capsule connection structure is fixed to the end frame by bolts or clips to form a ring-shaped enclosure.

[0004] However, existing maglev trains have gaps between their outer windshields and suspension skirts. When the carriages are coupled, there are openings at the connection points of the outer windshields of adjacent carriages, preventing a completely closed and smooth connection at the end of the train. When the maglev train is running at high speed, airflow rushes into the gaps on the surface of the train body, generating significant eddy current drag and aerodynamic noise, increasing air resistance and severely affecting the aerodynamic performance of the maglev train. Utility Model Content

[0005] The purpose of this invention is to provide an outer windshield and a maglev train, wherein each flexible capsule is connected end to end in sequence to form a closed annular capsule, and at least one flexible capsule is provided with a blocking block to effectively block the gap between the annular capsule and the suspension frame skirt, thus solving the technical problem that the existing outer windshield cannot completely block the gap at the suspension frame skirt, resulting in poor aerodynamic performance of the whole vehicle.

[0006] To achieve the above objectives, this utility model provides an exterior windshield, comprising several flexible capsules connected end to end in sequence, all of which are connected to form a closed annular capsule. The annular capsule is used to fill the gap between the end frame and the suspension frame skirt.

[0007] At least one section of the flexible capsule is integrally equipped with a shielding block, which is used to shield the gap between the annular capsule and the suspension frame skirt.

[0008] In some embodiments, the flexible capsule includes an upper capsule, a left corner capsule, a lower capsule, and a right corner capsule connected end to end in sequence; the upper capsule has a U-shaped structure, the lower capsule has a straight structure, and the open ends of the lower capsule and the upper capsule are opposite each other;

[0009] The left and right corner capsules are symmetrically arranged around the longitudinal centerline of the annular capsule; both the left and right corner capsules are J-shaped structures that bulge away from the longitudinal centerline of the annular capsule; and both the left and right corner capsules have a shielding block integrally fixed on their opposite sides.

[0010] In some embodiments, both the left corner capsule and the right corner capsule include a straight segment and a C-shaped segment. The straight segment is connected to the side strip of the upper capsule in a straight line. The C-shaped segment protrudes in a direction away from the longitudinal centerline of the annular capsule. One end of the C-shaped segment is bent and connected to the straight segment, and the other end is smoothly connected to the lower capsule.

[0011] In some embodiments, the left and right corner capsules are respectively provided with plug-in rods at both ends, and the upper and lower capsules are provided with plug-in slots at both ends, with the plug-in rods plugged into the plug-in slots; the plug-in rods and plug-in slots are bonded together by adhesive.

[0012] In some embodiments, the shielding block includes an extension strip and a transition block. One end of the extension strip is integrally connected to the C-shaped segment, and the other end extends away from the upper capsule until it exceeds the lower capsule. The transition block is integrally connected between the extension strip and the C-shaped segment. The extension strip has a through hole that extends along the longitudinal centerline of the annular capsule.

[0013] In some embodiments, the blocking block includes a left blocking block and a right blocking block, wherein the left blocking block is integrally fixed to the left corner capsule and the right blocking block is integrally fixed to the right corner capsule.

[0014] Along the longitudinal centerline of the annular capsule, the distance between the left and right blocking blocks gradually decreases in the direction away from the end frame.

[0015] In some embodiments, the annular capsule has a compression groove formed on the side facing the end frame, and the compression groove is embedded with a capsule compression strip.

[0016] In some embodiments, the flexible capsule is bent with an elastic flange on the side away from the end frame, and the elastic flange bends inward toward the annular capsule.

[0017] In some embodiments, the device further includes a plurality of connecting buckles fixed to the inside of the annular capsule, a plurality of fixing seats fixed to the end frame, and connecting ropes alternately threaded between the connecting buckles and the fixing seats.

[0018] This utility model also provides a maglev train, including the aforementioned outer windshield.

[0019] Compared to the prior art, this invention optimizes the structure of the windshield. The optimized windshield is a closed annular capsule, which is formed by several flexible capsules connected end to end to fill the gap between the end frame and the suspension skirt, forming a dynamic seal and optimizing the aerodynamic performance of the entire vehicle. Crucially, at least one flexible capsule is integrally equipped with a shielding block to cover the gap between the annular capsule and the suspension skirt, creating a smooth, closed connection in the end area. This effectively suppresses flow separation caused by structural abrupt changes, avoids eddy current drag and aerodynamic noise at the gap, reduces aerodynamic drag, and improves the overall aerodynamic performance of the vehicle.

[0020] The maglev train provided by this utility model includes the aforementioned outer windshield and has the same beneficial effects. Attached Figure Description

[0021] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 A schematic diagram of the exterior windshield provided in an embodiment of this utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the capsule in the middle left corner;

[0024] Figure 3 for Figure 1 A schematic diagram of the cross-section of the end face of the capsule in the middle left corner;

[0025] Figure 4 for Figure 1 A schematic diagram of the middle transverse segment of the capsule in the left middle corner.

[0026] The attached figures are labeled as follows:

[0027] 1. Flexible capsule; 2. Ring capsule; 3. Capsule pressing strip; 4. Connecting buckle; 5. Fixing base; 6. Connecting rope.

[0028] 10. Blocking block, 11. Upper capsule, 12. Left corner capsule, 13. Lower capsule, 14. Right corner capsule, 15. Straight segment, 16. C-shaped segment, 17. Connecting rod, and 18. Flexible flange.

[0029] Extension strip 101, transition block 102, through hole 103, left blocking block 104, and right blocking block 105

[0030] Extrusion groove 21. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] This utility model discloses an exterior windshield, as shown in the attached figure. Figure 1 As shown, the system comprises several flexible capsules 1 connected end-to-end, all of which are joined to form a closed annular capsule 2. The annular capsule 2 fills the gap between the end frame and the suspension frame skirt, creating a dynamic seal to prevent airflow from entering at the car connection points, reducing wind noise and optimizing the overall aerodynamic performance of the vehicle. Specifically, the flexible capsule 1 can be a rubber capsule, but is not limited to this. It should also be noted that the two opposite sides of the annular capsule 2 are a fixed side and a free side. The fixed side is fixed to the end frame, and the free sides of adjacent cars contact each other, forming a flexible connection to accommodate vibrations during train operation and ensure safe passage through curves and switches. However, the annular capsule 2 of adjacent cars maintains a set thickness to ensure that the annular capsule 2 on one side is not excessively compressed when the maglev train passes through curves, and to avoid insufficient thickness of the annular capsule 2 affecting the dynamic sealing effect.

[0034] Furthermore, for one of the annular capsules 2, the misalignment of the splicing seams of each flexible capsule 1 is controlled within a set range, preferably within 2mm. Moreover, the splicing seams of the annular capsules 2 of adjacent trailers need to be staggered to reduce the risk of loosening due to excessive friction and compression at the splicing seams of the annular capsules 2, thereby improving the connection reliability of the flexible capsules 1 of the annular capsule 2.

[0035] Crucially, at least one section of the flexible capsule 1 is integrally equipped with a shielding block 10. The shielding block 10 is used to shield the gap between the annular capsule 2 and the suspension frame skirt, improve the matching degree between the annular capsule 2 and the cross-sectional profile of the carriage, and form a closed and smooth connection in the vehicle end area. This effectively suppresses flow separation caused by structural abrupt changes, avoids eddy current drag and aerodynamic noise at the gap, reduces aerodynamic drag, and improves the aerodynamic performance of the whole vehicle.

[0036] In a preferred embodiment, the flexible capsule 1 has a split-type connecting structure for easy assembly and disassembly. The flexible capsule 1 includes an upper capsule 11, a left corner capsule 12, a lower capsule 13, and a right corner capsule 14 connected end-to-end. The upper capsule 11 has a U-shaped structure. Specifically, the upper capsule 11 is a one-piece molded structure, including two parallel side strips and a horizontal strip integrally connected between the two side strips. The side strips and the horizontal strip are perpendicular and smoothly connected by rounded corners, allowing the upper capsule 11 to fit the end face of the carriage. The lower capsule 13 has a straight structure, with the open end of the lower capsule 13 opposite to that of the upper capsule 11.

[0037] The left corner capsule 12 and the right corner capsule 14 are symmetrically arranged around the longitudinal centerline of the annular capsule 2, which is parallel to the longitudinal centerline of the carriage. Considering that the corners of the annular capsule 2 experience greater compression friction than other areas when the maglev train passes through curves, both the left corner capsule 12 and the right corner capsule 14 are J-shaped structures, protruding away from the longitudinal centerline of the annular capsule 2. This ensures that they fit the carriage end face and gives them greater flexibility than the other capsules, allowing the maglev train to adapt to more complex operating conditions and thus optimizing the overall aerodynamic performance of the vehicle.

[0038] As attached Figure 1 As shown, both the left corner capsule 12 and the right corner capsule 14 have integrated shielding blocks 10 fixed on their opposite sides, which effectively shield the two gaps between the annular capsule 2 and the suspension skirt, providing more complete shielding, reducing aerodynamic drag, and improving the overall aerodynamic performance of the vehicle.

[0039] As a preferred embodiment, as shown in the appendix Figure 2 As shown, both the left corner capsule 12 and the right corner capsule 14 include a straight segment 15 and a C-shaped segment 16. The straight segment 15 and the C-shaped segment 16 are connected to form a J-shaped structure. The straight segment 15 is directly connected to the side strip of the upper capsule 11, and the cross-section of the straight segment 15 is identical in shape to the cross-section of the upper capsule 11. The C-shaped segment 16 protrudes away from the longitudinal centerline of the annular capsule 2. One end of the C-shaped segment 16 is bent and connected to the straight segment 15, and the other end is smoothly connected to the lower capsule 13. The cross-section of the C-shaped segment 16 is identical in shape to the cross-section of the lower capsule 13. In other words, the cross-sectional shapes of the upper capsule 11, the left corner capsule 12, the lower capsule 13, and the right corner capsule 14 are identical, resulting in a smooth connection of the annular capsule 2 in the end area.

[0040] As a preferred embodiment, as shown in the appendix Figure 2As shown, each end of the left corner capsule 12 and the right corner capsule 14 is fixed with a connecting rod 17, and each end of the upper capsule 11 and the lower capsule 13 is provided with a connecting groove. The connecting rod 17 is connected to the connecting groove, so that the upper capsule 11, the left corner capsule 12, the lower capsule 13 and the right corner capsule 14 are positioned and connected. Furthermore, the connecting rod 17 is bonded to the connecting groove with adhesive to ensure a reliable connection between adjacent flexible capsules 1, avoid the annular capsule 2 from breaking during the operation of the maglev train, which would affect the sealing of the carriage, reduce the risk of sudden changes in air resistance when the whole vehicle is running at high speed, and improve operating efficiency. Specifically, the left corner capsule 12 and the right corner capsule 14 and the connecting rod 17 are injection molded as an integral structure.

[0041] In a preferred embodiment, the shielding block 10 includes an extension strip 101 and a transition block 102. One end of the extension strip 101 is integrally connected to the C-shaped segment 16, and the other end extends away from the upper capsule 11 until it exceeds the lower capsule 13. The transition block 102 is integrally connected between the extension strip 101 and the C-shaped segment 16. The transition block 102 is positioned not exceeding the lower capsule 13, so that the end of the extension strip 101 away from the C-shaped segment 16 tends to bend towards the lower capsule 13. Moreover, the extension strip 101 and the transition block 102 are smoothly connected by rounded corners, which reduces the concentrated stress at the connection between the extension strip 101 and the transition block 102, and helps to extend the service life of the shielding block 10. The extension strip 101 is provided with a through hole 103. The through hole 103 is an elongated hole and passes through along the longitudinal center line of the annular capsule 2. This can improve the elasticity of the extension strip 101 by reducing its stiffness, and also achieve weight reduction for the left corner capsule 12 and the right corner capsule 14.

[0042] In a preferred embodiment, the shielding block 10 includes a left shielding block 104 and a right shielding block 105. The left shielding block 104 is integrally fixed to the left corner capsule 12, and the right shielding block 105 is integrally fixed to the right corner capsule 14. The left shielding block 104 and the right shielding block 105 are used to shield the gaps at different locations. Along the longitudinal centerline of the annular capsule 2, the distance between the left shielding block 104 and the right shielding block 105 gradually decreases in the direction away from the end frame. Both the left shielding block 104 and the right shielding block 105 are inclined outward in the direction away from the longitudinal centerline of the annular capsule 2, so that the left shielding block 104 and the right shielding block 105 are distributed in a figure-eight shape along the longitudinal centerline of the annular capsule 2, forming a structure that is wider at the top and narrower at the bottom. This keeps the outer surfaces of the annular capsule 2 and the vehicle frame flush, improving the smoothness of the vehicle connection. In addition, when two adjacent carriages are coupled, the left blocking block 104 and the right blocking block 105 remain compressed, with a compression amount of 0-5mm, to ensure smooth connection at the end of the vehicle when the whole vehicle is running in a straight line.

[0043] In a preferred embodiment, the annular capsule 2 has a compression groove 21 formed on the side facing the end frame. The compression groove 21 is embedded with the capsule pressure strip 3. The compression groove 21 and the capsule pressure strip 3 are interlocked and connected by adhesive, so that the capsule pressure strip 3 abuts against the end frame, reducing the wear on the fixed side of the annular capsule 2 and helping to extend the service life of the annular capsule 2.

[0044] In a preferred embodiment, the flexible capsule 1 is bent with an elastic flange 18 on the side away from the end frame. The elastic flange 18 is located on the free side of the annular capsule 2. The elastic flange 18 is a C-shaped flange that bends inward toward the annular capsule 2, so that the free side of the annular capsule 2 has good longitudinal extensibility along its own longitudinal centerline. This not only enables flexible connection of the end faces of two adjacent carriages, but also absorbs the impact vibration generated by the carriages when the whole vehicle passes through curves and switches, ensuring a smoother connection at the end of the whole vehicle.

[0045] As a preferred embodiment, the outer windshield also includes several connecting buckles 4 fixed to the inner side of the annular capsule 2, several fixing seats 5 fixed to the end frame, and connecting ropes 6 alternately threaded between the connecting buckles 4 and the fixing seats 5. The connecting ropes 6 can specifically be steel wire ropes, which are tightened by a tensioner. The connecting buckles 4 are specifically fixed on the elastic flange 18 of the annular capsule 2 and are evenly distributed along the inner side of the annular capsule 2, so that each section of the annular capsule 2 is fixed to the end frame by the tension of the connecting ropes 6. This design makes the outer windshield easy to deform and can adapt to maglev trains with different spacing, which helps to reduce manufacturing costs.

[0046] This utility model also provides a maglev train, including the aforementioned outer windshield, which has the same beneficial effects.

[0047] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0048] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An exterior windshield, characterized in that, It includes several flexible capsules (1) connected end to end in sequence. All the flexible capsules (1) are connected to form a closed annular capsule (2). The annular capsule (2) is used to fill the gap between the end frame and the suspension frame skirt. At least one section of the flexible capsule (1) is integrally provided with a shielding block (10), which is used to shield the gap between the annular capsule (2) and the suspension frame skirt.

2. The exterior windshield according to claim 1, characterized in that, The flexible capsule (1) includes an upper capsule (11), a left corner capsule (12), a lower capsule (13), and a right corner capsule (14) connected end to end in sequence; the upper capsule (11) has a U-shaped structure, the lower capsule (13) has a straight structure, and the open end of the lower capsule (13) is opposite to the open end of the upper capsule (11); The left corner capsule (12) and the right corner capsule (14) are symmetrically arranged with the longitudinal center line of the annular capsule (2) as the center; both the left corner capsule (12) and the right corner capsule (14) are J-shaped structures that protrude away from the longitudinal center line of the annular capsule (2); the blocking block (10) is integrally fixed on the opposite sides of both the left corner capsule (12) and the right corner capsule (14).

3. The exterior windshield according to claim 2, characterized in that, Both the left corner capsule (12) and the right corner capsule (14) include a straight segment (15) and a C-shaped segment (16). The straight segment (15) is connected to the side strip of the upper capsule (11) in a straight line. The C-shaped segment (16) protrudes away from the longitudinal center line of the annular capsule (2). One end of the C-shaped segment (16) is bent and connected to the straight segment (15), and the other end is smoothly connected to the lower capsule (13).

4. The exterior windshield according to claim 2, characterized in that, The left corner capsule (12) and the right corner capsule (14) are respectively fixed with plug-in rods (17) at both ends. The upper capsule (11) and the lower capsule (13) are both provided with plug-in grooves at both ends. The plug-in rods (17) are plugged into the plug-in grooves. The plug-in rods (17) and the plug-in grooves are bonded together with adhesive.

5. The exterior windshield according to claim 3, characterized in that, The shielding block (10) includes an extension strip (101) and a transition block (102). One end of the extension strip (101) is integrally connected to the C-shaped segment (16), and the other end extends away from the upper capsule (11) until it exceeds the lower capsule (13). The transition block (102) is integrally connected between the extension strip (101) and the C-shaped segment (16). The extension strip (101) is provided with a through hole (103) that runs through the longitudinal center line of the annular capsule (2).

6. The exterior windshield according to claim 2, characterized in that, The shielding block (10) includes a left shielding block (104) and a right shielding block (105). The left shielding block (104) is integrally fixed to the left corner capsule (12), and the right shielding block (105) is integrally fixed to the right corner capsule (14). Along the longitudinal centerline of the annular capsule (2), in the direction away from the end frame, the distance between the left blocking block (104) and the right blocking block (105) gradually decreases.

7. The exterior windshield according to claim 2, characterized in that, The annular capsule (2) has a compression groove (21) on the side facing the end frame, and the compression groove (21) is embedded with a capsule pressure strip (3).

8. The exterior windshield according to any one of claims 1 to 7, characterized in that, The flexible capsule (1) is bent with an elastic flange (18) on the side away from the end frame. The elastic flange (18) is a C-shaped flange that bends toward the inside of the annular capsule (2).

9. The exterior windshield according to any one of claims 1 to 7, characterized in that, It also includes several connecting buckles (4) fixed inside the annular capsule (2), several fixing seats (5) fixed to the end frame, and connecting ropes (6) alternately threaded between the connecting buckles (4) and the fixing seats (5).

10. A maglev train, characterized in that, Includes the exterior windshield as described in any one of claims 1 to 9.

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