Railway flat car and car body thereof

Abstract

The application discloses a railway flat car and a car body thereof. The car body comprises a traction beam and side beams located on both sides of the traction beam. The car body further comprises a bolster beam. The bolster beam comprises two independent bolster beam structures. The bolster beam structures extend along the width direction of the car. The outer end portions of the bolster beam structures are fixedly connected to the side beams through fasteners. The inner end portions of the bolster beam structures are fixedly connected to the traction beam through fasteners. The modular design of the bolster beam can reduce the complexity of the connecting structure between the bolster beam and the traction beam and the side beams, thereby improving the manufacturing process. In addition, the bolster beam, the traction beam and the side beams are connected through fasteners, thereby avoiding the smoke collection problem caused by welding.

Description

Technical Field

[0001] This application relates to the field of railway transportation equipment technology, and in particular to a railway flatcar and its body. Background Technology

[0002] In related technologies, the body of railway flatcars adopts a welded structure. The end beams of the car body are welded to the traction beams and side beams, and the sleeper beams are also welded to the traction beams and side beams. The connection structure between related components (such as the connection structure between the sleeper beams and the traction beams) is relatively complex and has poor manufacturing process. In addition, due to the long length of the car body, a large space is required for welding operations, and it is difficult to collect the fumes and dust generated during welding.

[0003] In view of this, how to improve the body structure of railway flatcars to enhance manufacturing process and facilitate dust collection in the workshop is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this application is to provide a railway flatcar and its body. By modularizing the sleeper beam, the complexity of the connection structure between the sleeper beam and the traction beam and side beam can be reduced, which is beneficial to improving the manufacturability. At the same time, the sleeper beam is connected to the traction beam and side beam through fasteners, avoiding the problem of dust collection caused by welding.

[0005] To solve the above-mentioned technical problems, this application provides a railway flatcar body, including a traction beam and side beams located on both sides of the traction beam; it also includes a sleeper beam, the sleeper beam including two independent sleeper beam structures, the sleeper beam structures extending along the width direction of the car, the outer end of the sleeper beam structure being fixedly connected to the side beams by fasteners, and the inner end of the sleeper beam structure being fixedly connected to the traction beam by fasteners.

[0006] By adopting the above scheme, the bolster beam is modularly designed as two relatively independent bolster beam structures. Each bolster beam structure is fixedly connected to the side beam and traction beam by fasteners. This avoids fixing the bolster beam to the side beam and traction beam by welding, thus avoiding the problem of difficult dust collection in large workshops caused by welding bolster beams. At the same time, due to the modular design of the bolster beam, the structure at the junction of each bolster beam structure with the traction beam and side beam can be designed more simply. In other words, the complexity of the connection structure between the bolster beam structure and the traction beam and side beam can be reduced, which is beneficial to improving the manufacturability and also to improving the reliability and stability of the connection between the bolster beam and the traction beam and side beam.

[0007] As described above, the railway flatcar body includes a sleeper beam structure comprising an upper cover plate, a lower cover plate, and a web plate, wherein the web plate is fixed between the upper cover plate and the lower cover plate; the distance between the outer end of the lower cover plate and the upper cover plate is less than the distance between the inner end of the lower cover plate and the upper cover plate.

[0008] The outer end of the upper cover plate is fixedly connected to the top plate of the side beam by fasteners, and the inner end of the upper cover plate is fixedly connected to the top plate of the traction beam by fasteners.

[0009] A first support seat is fixedly connected to the bottom surface of the outer end of the lower cover plate. The first support seat is fixedly connected to the side plate of the side beam by fasteners. The inner end of the lower cover plate is fixedly connected to the bottom cover plate of the traction beam by fasteners.

[0010] As described above, in the body of the railway flatcar, the web extends along the width direction, and both the outer and inner ends of the web have bent plate portions. The two bent plate portions are fixedly connected to the side plate of the traction beam and the side plate of the side beam respectively by fasteners.

[0011] As described above, the railway flatcar has two webs, and several partitions are fixedly connected between the two webs.

[0012] As described above, in the railway flatcar body, the inner end of the upper cover plate is closer to the longitudinal centerline of the traction beam than the inner end of the lower cover plate, and the outer end of the upper cover plate is farther from the longitudinal centerline of the traction beam than the outer end of the lower cover plate; the inner end of the lower cover plate is farther from the longitudinal centerline of the traction beam than the inner end of the web plate.

[0013] As described above, the lower cover plate of the railway flatcar includes a first plate portion, a second plate portion, and a third plate portion connected in sequence. The first plate portion and the third plate portion are parallel to the horizontal plane, and the second plate portion is inclined to the horizontal plane. The first plate portion is close to the upper cover plate relative to the third plate portion. A side bearing wear plate is installed on the bottom surface of the third plate portion.

[0014] The railway flatcar body described above further includes end beams, each end beam comprising two independent end beam structures that extend along the width of the car. The outer end of each end beam structure is fixedly connected to the side beam by fasteners, and the inner end of each end beam structure is fixedly connected to the traction beam by fasteners.

[0015] The railway flatcar body as described above, the end beam structure includes an end beam body that extends along the width direction of the car;

[0016] The end beam body includes a top plate, a side plate, and a bottom plate. The side plate is fixed between the top plate and the bottom plate, and the top plate and the bottom plate are located on the same side of the side plate.

[0017] The outer end of the top plate is fixedly connected to the top plate of the side beam by fasteners, and the inner end of the top plate is fixedly connected to the top plate of the traction beam by fasteners.

[0018] The outer end of the base plate is fixedly connected to the base plate of the side beam by fasteners, and the inner end of the base plate is fixedly connected to the base plate of the traction beam by fasteners.

[0019] As described above, the end beam structure of the railway flatcar also includes a support beam, which is fixed to the top plate on the side relatively away from the side plate, and the support beam is closer to the sleeper beam structure relative to the side plate.

[0020] The bottom plate of the side beam is fixedly connected to a second support seat, and the side plate of the traction beam is fixedly connected to an end beam connecting plate.

[0021] The outer end of the support beam is fixedly connected to the second support seat by fasteners, and the inner end of the support beam is fixedly connected to the end beam connecting plate by fasteners.

[0022] The inner end of the top plate is also fixedly connected to the end beam connecting plate by fasteners.

[0023] As described above, in the railway flatcar body, the inner end of the top plate portion is closer to the longitudinal centerline of the traction beam relative to the inner end of the bottom plate portion and the inner end of the support beam, while the outer end of the top plate portion is farther from the longitudinal centerline of the traction beam relative to the outer end of the bottom plate portion and the outer end of the support beam.

[0024] As described above, the end beam structure of the railway flatcar also includes connecting corner pieces, which include an integrally formed first plate and a second plate. The first plate is fixedly connected to the outer end of the side plate by fasteners, and the second plate is fixedly connected to the side plate of the side beam by fasteners.

[0025] As described above, the end beam of the railway flatcar also includes several stiffening plates, which are fixed between the top plate and the bottom plate.

[0026] The railway flatcar body as described above has at least one of the end handrail, end foot pedal and side handrail fixedly connected to at least one of the end beam structures by fasteners.

[0027] The railway flatcar body described above further includes a center beam, and the traction beam is the end portion of the center beam; the center beam includes a center beam body and a bottom cover plate; the center beam body extends along the length of the car.

[0028] The main body of the central beam is an integrally formed structure, which includes a first top plate, two first side plates and two first bottom plates. The first side plates extend downward from the side of the first top plate, and the first bottom plates extend outward from the bottom of the first side plates.

[0029] The bottom cover plate is located in the area of ​​the main body of the middle beam used to connect with the bolster beam structure. The bottom cover plate is fixedly connected to the first bottom plate by fasteners. Along the vehicle width direction, both ends of the bottom cover plate extend beyond the first bottom plate.

[0030] As described above, the railway flatcar body includes an end beam connecting plate in the middle beam. The end beam connecting plate is fixedly connected to the side of the first side plate facing the side beam. The end beam connecting plate includes a first connecting plate and a second connecting plate. The first connecting plate is on the same plane as the first top plate. The first connecting plate is used to be fixedly connected to the inner end of the end beam structure of the car body. The second connecting plate is closer to the sleeper beam structure relative to the first connecting plate and closer to the first bottom plate relative to the first connecting plate. The second connecting plate is used to be fixedly connected to the inner end of the end beam structure.

[0031] As described above, the side beam of the railway flatcar includes a side beam body extending along the length of the car. The side beam body includes an integrally formed second top plate, a second side plate, and a second bottom plate. The second top plate is fixed to the top edge of the second side plate, and the second bottom plate is fixed to the bottom edge of the second side plate. The second top plate is located outside the second side plate, and the second bottom plate is located inside the second side plate.

[0032] As described above, the side beam of the railway flatcar also includes a second support seat, which is fixedly connected to the second base plate and is used to be fixedly connected to the outer end of the end beam structure of the car body.

[0033] As described above, in the body of the railway flatcar, the second bottom plate is fixed to a top car pad by fasteners at the position where it connects with the sleeper beam structure, and the top car pad is located on the bottom surface of the second bottom plate.

[0034] The present invention also provides a railway flatcar, comprising the car body described in any of the above claims.

[0035] Since the aforementioned car body has the above-mentioned technical effects, the railway flatcar, which includes the car body, also has the same technical effects, and will not be discussed again here.

[0036] The railway flatcar described above is a container flatcar. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of the railway flatcar body in one embodiment of this application;

[0038] Figure 2 for Figure 1 A partial structural schematic diagram of the end region of the vehicle body shown;

[0039] Figure 3This is a perspective view of the pillow beam structure in a specific embodiment;

[0040] Figure 4 for Figure 3 A perspective view of the central sleeper beam structure from another angle;

[0041] Figure 5 This is a perspective view of the end beam structure in a specific embodiment;

[0042] Figure 6 for Figure 5 Side view of the mid-end beam structure;

[0043] Figure 7 This is an axonometric view of the end beam structure with handrails and footrests installed in a specific embodiment.

[0044] Figure 8 for Figure 7 The front view of the end beam structure shown;

[0045] Figure 9 This is a partial structural diagram of the beam in a specific embodiment;

[0046] Figure 10 This is a structural schematic diagram of the beam from another perspective in a specific embodiment;

[0047] Figure 11 This is a partial perspective view of the side beam in a specific embodiment;

[0048] Figure 12 for Figure 11 Side view of the middle side beam;

[0049] Figure 13 for Figure 1 Schematic diagram of the end face of the CRRC body;

[0050] Figure 14 This is a schematic diagram of the transverse cross-section of the vehicle body at the position of the bolster beam in a specific embodiment;

[0051] Figure 15 This is a schematic diagram of the transverse cross-section of the vehicle body at the end beam position in a specific embodiment.

[0052] Explanation of reference numerals in the attached figures:

[0053] Vehicle body 100;

[0054] 10. Central beam, 10A traction beam, 11. Central beam body, 11. First top plate, 111. First side plate, 112. First bottom plate, 113. Bottom cover plate, 12. End beam connecting plate, 13. First connecting plate, 131. Second connecting plate, 132. Reinforcing plate, 14. Impact seat connecting plate, 15.

[0055] Side beam 20, side beam body 21, second top plate 211, second side plate 212, second bottom plate 213, second support seat 22, traction hook 23, top car pad 24;

[0056] Pillow beam 30, pillow beam structure 30A, upper cover plate 31, lower cover plate 32, first plate part 321, second plate part 322, third plate part 323, web plate 33, bent plate part 331, first support seat 34, partition plate 35, side bearing wear plate 36.

[0057] End beam 40, end beam structure 40A, end beam body 41, top plate 411, side plate 412, bottom plate 413, stiffening plate 414, support beam 42, connecting corner piece 43;

[0058] End handrail 51, end footrest 52, side handrail 53, side footrest 54;

[0059] Impact seat 61, front follower plate seat 62, rear follower plate seat 63, center plate seat 64, upper center plate 65. Detailed Implementation

[0060] For ease of understanding and concise description, the following explanation will be combined with the railway flatcar and its body, and the beneficial effects will not be repeated.

[0061] Railway flatcars are mainly used for freight transportation, and their bodies are used to carry the transported goods. This article focuses on improving the body of the railway flatcar, which is suitable for various types of railway flatcars. Specifically, the railway flatcar can be a container flatcar.

[0062] The vehicle body structure will now be described in detail with reference to the accompanying drawings and specific embodiments. For ease of description and clear understanding, two directions are marked in the drawings: direction L represents the length of the vehicle, and direction W represents the width of the vehicle.

[0063] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the railway flatcar body in one embodiment of this application; Figure 2 for Figure 1 A partial structural diagram of the end region of the vehicle body is shown.

[0064] In this embodiment, the car body 100 of the railway flatcar includes a traction beam 10A and side beams 20 located on both sides of the traction beam 10A. The length directions of the traction beam 10A and the two side beams 20 are parallel to the length direction L of the car. Typically, the two side beams 20 are arranged symmetrically relative to the traction beam 10A to ensure the structural stability and balanced stress of the car body 100.

[0065] The vehicle body 100 also includes a bolster beam 30, which comprises two independent bolster beam structures 30A. The bolster beam structures 30A extend along the vehicle width direction W. The outer ends of the bolster beam structures 30A are fixedly connected to the side beams 20 by fasteners, and the inner ends of the bolster beam structures 30A are fixedly connected to the traction beams 10A by fasteners. It can be understood that one bolster beam structure 30A is fixedly connected between one side beam 20 and the traction beam 10A, and the other bolster beam structure 30A is fixedly connected between another side beam 20 and the traction beam 10A.

[0066] Here, along the vehicle width direction W, the end relatively closer to the side beam 20 is defined as "outer," and the end relatively closer to the traction beam 10A is defined as "inner." That is, the direction relatively away from the longitudinal centerline of the vehicle body 100 is "outer," and the direction relatively away from the longitudinal centerline of the vehicle body 100 is "inner." The following text uses the same understanding and will not be repeated.

[0067] Generally, the two bolster beam structures 30A are located on the same straight line, that is, the installation positions of the two bolster beam structures 30A correspond.

[0068] By adopting the above scheme, the bolster beam 30 is modularly designed as two relatively independent bolster beam structures 30A. Each bolster beam structure 30A is fixedly connected to the side beam 20 and the traction beam 10A by fasteners. This avoids fixing the bolster beam 30 to the side beam 20 and the traction beam 10A by welding, thus avoiding the problem of difficult dust collection in large workshops caused by welding the bolster beam 30. At the same time, due to the modular design of the bolster beam 30, the structure at the junction of each bolster beam structure 30A with the traction beam 10A and the side beam 20 can be designed more simply. In other words, the complexity of the connection structure between the bolster beam structure 30A and the traction beam 10A and the side beam 20 can be reduced, which is beneficial to improving the manufacturability and also to improving the reliability and stability of the connection between the bolster beam 30 and the traction beam 10A and the side beam 20.

[0069] In this embodiment, the vehicle body 100 also includes end beams 40, which include two independent end beam structures 40A. The end beam structures 40A extend along the vehicle width direction W. The outer ends of the end beam structures 40A are fixedly connected to the side beams 20 by fasteners, and the inner ends of the end beam structures 40A are fixedly connected to the traction beams 10A by fasteners. It can be understood that one end beam structure 40A is fixed between one side beam 20 and the traction beam 10A, and the other end beam structure 40A is fixed between another side beam 20 and the traction beam 10A. Typically, the installation positions of the two end beam structures 40A correspond, that is, the two end beam structures 40A are on a straight line.

[0070] In this way, by modularizing the end beam 40, the need to fix the end beam 40 to the side beam 20 and the traction beam 10A can be avoided. This avoids the problem of difficult dust collection in large workshops caused by welding the end beam 40. At the same time, due to the modular design of the end beam 40, the complexity of the connection structure between each end beam structure 40A and the traction beam 10A and the side beam 20 is easily reduced, which is conducive to improving the manufacturability and also to improving the reliability and stability of the connection between the end beam 40 and the traction beam 10A and the side beam 20.

[0071] As described above, in this embodiment, both the bolster beam 30 and the end beam 40 of the vehicle body 100 adopt a modular structural design and are fixedly connected to the traction beam 10A and the side beam 20 by fasteners. This can better improve the manufacturability of the vehicle body 100 and minimize welding operations in a large workshop. However, it is understood that in other embodiments, only the bolster beam 30 or the end beam 40 can be modularly designed to achieve the same effect of reducing the difficulty of collecting dust.

[0072] The structure of the bolster beam 30, end beam 40, traction beam 10A, and side beam 20 is explained in detail below with reference to the diagram. Among them, the two bolster beam structures 30A of the bolster beam 30 are symmetrical with respect to the traction beam 10A, and the two end beam structures 40A of the end beam 40 are symmetrical with respect to the traction beam 10A.

[0073] Please refer to this as well. Figure 3 and Figure 4 , Figure 3 and Figure 4 Perspective views of the 30A sleeper beam structure are shown from two different perspectives.

[0074] In this embodiment, the pillow beam structure 30A includes an upper cover plate 31, a lower cover plate 32, and a web plate 33, with the web plate 33 fixed between the upper cover plate 31 and the lower cover plate 32.

[0075] The upper cover plate 31 is a plate structure parallel to the horizontal plane to facilitate connection with the vehicle floor, providing a foundation for the vehicle body 100 to have a flat support surface for carrying goods.

[0076] The distance between the outer end of the lower cover plate 32 and the upper cover plate 31 is less than the distance between the inner end of the lower cover plate 32 and the upper cover plate 31. In other words, the distance between the upper cover plate 31 and the lower cover plate 32 near the side beam 20 is less than the distance between the upper cover plate 31 and the lower cover plate 32 near the traction beam 10A.

[0077] In this design, the lower cover plate 32 includes a first plate portion 321, a second plate portion 322, and a third plate portion 323 connected sequentially. The first plate portion 321 is located near the side beam 20, and the third plate portion 323 is located near the traction beam 10A. Both the first plate portion 321 and the third plate portion 323 are parallel to the horizontal plane, while the second plate portion 322 is inclined to the horizontal plane to facilitate connection between the first plate portion 321 and the third plate portion 323. A side bearing wear plate 36 is installed on the bottom surface of the third plate portion 323. This structural design helps ensure the horizontality of the side bearing wear plate 36, facilitates assembly, and simplifies the manufacturing process.

[0078] by Figure 3 and Figure 4 From the perspective shown, the left end of the bolster beam structure 30A is the outer end near the side beam 20, and the right end is the inner end near the traction beam 10A.

[0079] In actual implementation, the side bearing wear plate 36 can be fixedly connected to the third plate 323 by fastening structures such as bolts.

[0080] In this design, a first support seat 34 is fixed to the bottom surface of the outer end of the lower cover plate 32. Specifically, the first support seat 34 is fixed to the bottom surface of the first plate portion 321, and the bottom end of the first support seat 34 can be flush with the third plate portion 323 to facilitate the connection between the pillow beam structure 30A and the side beam 20.

[0081] Specifically, the outer end of the upper cover plate 31 is fixedly connected to the side beam 20 by fasteners, and the inner end of the upper cover plate 31 is fixedly connected to the traction beam 10A by fasteners.

[0082] The first support seat 34 is fixedly connected to the side beam 20 by fasteners, and the inner end of the lower cover plate 32 is fixedly connected to the traction beam 10A by fasteners.

[0083] In this design, the web 33 of the bolster beam structure 30A extends along the vehicle width direction W. Both the outer and inner ends of the web 33 have bent plate portions 331, and the two bent plate portions 331 are fixedly connected to the side beam 20 and the traction beam 10A respectively by fasteners.

[0084] In actual implementation, there can be two web plates 33, with the main bodies of the two web plates 33 arranged in parallel to improve the reliability and stability of the connection between the bolster beam structure 30A and the traction beam 10A and the side beam 20, which helps to ensure the structural strength of the car body 100.

[0085] Specifically, to improve the strength of the bolster beam structure 30A, several partitions 35 can be fixed between the two webs 33. The figure exemplarily shows a structure with three partitions 35 between the two webs 33, where two partitions 35 are relatively close to the installation position of the side bearing wear plate 36, which helps to improve the structural strength at the location of the side bearing wear plate 36. In practical applications, the number and placement of the partitions 35 can be set according to specific needs and are not limited here.

[0086] The "several" here refers to one, two, or more quantities that are uncertain. The "several" mentioned below is understood in the same way and will not be repeated here.

[0087] In this design, the upper cover plate 31, lower cover plate 32, web plate 33, first support seat 34, and partition plate 35 of the bolster beam structure 30A can be fixed together by welding. The modular bolster beam structure 30A has a relatively small volume, and most of its structural components can be fixed by welding in a small workshop, which facilitates the collection of smoke and dust.

[0088] In this design, the inner end of the upper cover plate 31 is closer to the longitudinal centerline of the traction beam 10A than the inner end of the lower cover plate 32, while the outer end of the upper cover plate 31 is farther from the longitudinal centerline of the traction beam 10A than the inner end of the lower cover plate 32. Similarly, the inner end of the lower cover plate 32 is farther from the longitudinal centerline of the traction beam 10A than the inner end of the web plate 33. This structural arrangement facilitates the vertical descent of the bolster beam structure 30A during assembly, allowing it to be assembled with the traction beam 10A and the side beam 20.

[0089] Please refer to this as well. Figures 5 to 8 , Figure 5 This is a perspective view of the end beam structure in a specific embodiment; Figure 6 for Figure 5 Side view of the mid-end beam structure; Figure 7 This is an axonometric view of the end beam structure with handrails and footrests installed in a specific embodiment. Figure 8 for Figure 7 The front view of the end beam structure shown.

[0090] In this embodiment, the end beam structure 40A includes an end beam body 41, which includes a top plate 411, a side plate 412, and a bottom plate 413. The side plate 412 is fixed between the top plate 411 and the bottom plate 413, and the top plate 411 and the bottom plate 413 are located on the same side of the side plate 412. Specifically, the end beam body 41 is an integrally formed structure with good structural strength.

[0091] The outer end of the top plate 411 is fixedly connected to the side beam 20 by fasteners, and the inner end of the top plate 411 is fixedly connected to the traction beam 10A by fasteners; the outer end of the bottom plate 413 is fixedly connected to the side beam 20 by fasteners, and the inner end of the bottom plate 413 is fixedly connected to the traction beam 10A by fasteners.

[0092] by Figure 5 From the perspective shown, the left end of the end beam structure 40A is the inner end near the traction beam 10A, and the right end is the outer end near the side beam 20.

[0093] In practice, the bottom plate portion 413 of the end beam structure 40A has a smaller dimension in the vehicle length direction L than the top plate portion 411 in the vehicle length direction L, so as to make room for the arrangement of other structures that are installed with the vehicle body 100.

[0094] In this scheme, the end beam structure 40A also includes a support beam 42. The support beam 42 is fixed to the top plate portion 411 on the side that is relatively far away from the side plate portion 412. The support beam 42 is closer to the pillow beam structure 30A relative to the side plate portion 412. It can be considered that the side plate portion 412 of the end beam structure 40A is the end face structure of the vehicle body 100.

[0095] In the illustrated example, support beam 42 is an L-shaped beam structure. In practical applications, support beam 42 can also be made of other types of beam structures.

[0096] The outer end of the support beam 42 is fixedly connected to the side beam 20 by fasteners, and the inner end of the support beam 42 is fixedly connected to the traction beam 10A by fasteners. This helps to improve the stability and reliability of the connection between the end beam structure 40A and the traction beam 10A and the side beam 20.

[0097] In this design, the end beam body 41 also includes several stiffening plates 414, which are fixed between the top plate 411 and the bottom plate 413 to improve the structural strength of the end beam body 41. Specifically, the stiffening plates 414 can be placed in areas of the end beam body 41 where the stress is high, to provide reinforcement.

[0098] In a specific configuration, the stiffening plate 414 can also be fixedly connected to the side plate 412 and the support beam 42 to further improve the structural strength of the end beam structure 40A. Weight-reduction holes can be provided on the stiffening plate 414 to meet reinforcement requirements.

[0099] In this scheme, the end beam structure 40A also includes a connecting corner piece 43, which is an L-shaped structure and includes an integrally formed first plate and a second plate. The first plate is fixedly connected to the outer end of the side plate portion 412 of the end beam body 41 by fasteners, and the second plate is fixedly connected to the side beam 20 by fasteners. In this way, the connection strength between the end beam structure 40A and the side beam 20 can be improved.

[0100] Specifically, the top plate 411, side plate 412, and bottom plate 413 of the end beam body 41 can be integrally formed. The stiffening ribs 414 can be fixed to the top plate 411 and side plate 412 by welding, and the support beam 42 can also be fixed to the top plate 411 by welding. The modular end beam structure 40A has a relatively small volume, and most of its structural components can be fixed by welding in a small workshop, which facilitates the collection of dust.

[0101] In this design, the inner end of the top plate portion 411 of the end beam body 41 is closer to the longitudinal centerline of the traction beam 10A relative to the inner end of the bottom plate portion 413 and the inner end of the support beam 42, while the outer end of the top plate portion 411 is farther from the longitudinal centerline of the traction beam 10A relative to the outer end of the bottom plate portion 413 and the outer end of the support beam 42. That is, in the vehicle width direction W, the size of the top plate portion 411 is larger than the size of the bottom plate portion 413 and also larger than the size of the support beam 42, and both ends of the top plate 411 extend beyond both ends of the bottom plate 413 and also extend beyond both ends of the support beam 42. This structural arrangement facilitates the vertical descent of the end beam structure 40A during assembly, allowing it to be assembled with the traction beam 10A and the side beam 20.

[0102] In this design, the end beam structure 40A is located at the end of the vehicle body 100. To facilitate practical operation, at least one of the following is fixedly connected to at least one end beam structure 40A of an end beam 40 by fasteners: an end handrail 51, an end foot pedal 52, and a side handrail 53. Figure 7 The end beam structure 40A shown is fixed with an end handrail 51, an end footrest 52, and a side handrail 53.

[0103] Please refer to this as well. Figure 9 and Figure 10 , Figure 9 and Figure 10 The diagram shows partial structural schematics of the central beam from two different perspectives.

[0104] The body 100 of the railway flatcar includes a center beam 10. Along the length L of the car, the two ends of the center beam 10 form two traction beams 10A. That is to say, the end part of the center beam 10 is the traction beam 10A. It can be understood that the traction beam 10A is a part of the structure of the center beam 10.

[0105] Figure 9 and Figure 10 The image shown is of the traction beam 10A part of the middle beam 10. The following description will focus on the middle beam 10. The traction beam 10A is a part of the middle beam 10 and its structure is the same as that of the middle beam 10.

[0106] In this embodiment, the center sill 10 includes a center sill body 11 and a bottom cover plate 12, and the center sill body 11 extends along the vehicle length direction L. The center sill body 11 is an integrally formed structure, which includes a first top plate 111, two first side plates 112 and two first bottom plates 113. Among them, the first side plate 112 extends downward from the side edge of the first top plate 111, and the first bottom plate 113 extends outward from the bottom edge of the first side plate 112. Briefly speaking, the cross-section of the center sill body 11 is approximately in a "ji" shape.

[0107] The bottom cover plate 12 is located in the area where the center sill body 11 is used to connect with the bolster structure 30A. The first bottom plate 113 of the bottom cover plate 12 and the center sill body 11 are fixedly connected by fasteners. Along the vehicle width direction W, both ends of the bottom cover plate 12 extend out of the first bottom plate 113.

[0108] Generally, an impact seat connecting plate 15 is fixedly connected to the end of the center sill 10. The impact seat connecting plate 15 is used to install the impact seat 61. The front draft gear seat 62 and the rear draft gear seat 63 are installed on the first side plate 112 of the center sill 10 at the draft sill 10A part to facilitate the installation of the coupler buffer device.

[0109] Usually, a center plate seat 64 is provided on the side of the center sill 10 at the position of the bottom cover plate 12, and a center plate 65 is installed at the bottom.

[0110] Limited by the structure of the impact seat connecting plate 15, to ensure the reliability of the connection between the end sill structure 40A and the draft sill 10A, the center sill 10 further includes an end sill connecting plate 13. The end sill connecting plate 13 is fixedly connected to the side of the first side plate 112 facing the side sill 20. The end sill connecting plate 13 includes a first connecting plate 131 and a second connecting plate 132. Among them, the first connecting plate 131 is in the same plane as the first top plate 111, and the first connecting plate 131 is used to fixedly connect with the inner end of the end sill structure 40A. The second connecting plate 132 is relatively closer to the bolster structure 30A than the first connecting plate 131, and is relatively closer to the first bottom plate 113 than the first connecting plate 131. The second connecting plate 132 is used to fixedly connect with the inner end of the end sill structure 40A.

[0111] In the illustrated example, the first connecting plate 131 is in an L-shaped structure, including a horizontal plate part and a vertical plate part. The horizontal plate part is flush with and fixedly connected to the first top plate 111, the vertical plate part is fixedly connected to the first side plate 112, and the vertical plate part is simultaneously fixedly connected to the second connecting plate 132. The second connecting plate 132 is fixedly connected to the first side plate 112. Both the first connecting plate 131 and the second connecting plate 132 can be fixedly connected by welding, which can ensure the structural strength.

[0112] In practical applications, according to the structural requirements, the center sill 10 can also be provided with a reinforcing plate 14 at the part with a large load.

[0113] Please refer to Figure 11 and Figure 12 , Figure 11 and Figure 12 This is a schematic diagram of the side beam from two different perspectives.

[0114] In this embodiment, the side beam 20 includes a side beam body 21 extending along the length direction L of the vehicle. The side beam body 21 includes an integrally formed second top plate 211, a second side plate 212, and a second bottom plate 213. The second top plate 211 is fixedly connected to the top edge of the second side plate 212, and the second bottom plate 213 is fixedly connected to the bottom edge of the second side plate 212. The second top plate 211 is located on the outside of the second side plate 212, and the second bottom plate 213 is located on the inside of the second side plate 212. That is, the second top plate 211 and the second bottom plate 213 are located on both sides of the second side plate 212, and the second top plate 211 extends away from the center beam 10, while the second bottom plate 213 extends towards the center beam 10.

[0115] like Figure 12 As shown, the cross-section of the main body of the side beam 21 is approximately "Z" shaped or approximately "B" shaped.

[0116] In this scheme, the side beam 20 also includes a second support seat 22, which is fixedly connected to the second base plate 213 and corresponds to the position of the end beam structure 40A, so as to be fixedly connected to the outer end of the end beam structure 40A.

[0117] To facilitate inspection and maintenance, a top car pad 24 is fixed to the bottom of the side beam 20 by fasteners. The top car pad 24 is specifically located at the connection between the side beam 20 and the bolster beam structure 30A.

[0118] Generally, the outer side of the second side plate 212 of the side beam 20 is also fixed with a traction hook 23 by fasteners.

[0119] Please refer to this as well. Figures 13 to 15 , Figure 13 for Figure 1 Schematic diagram of the end face of the CRRC body; Figure 14 This is a schematic diagram of the transverse cross-section of the vehicle body at the position of the bolster beam in a specific embodiment; Figure 15 This is a schematic cross-sectional view of the vehicle body at the end beam location in a specific embodiment. The structure is shown for clarity. Figure 14 and Figure 15 Local structures are shown in all of them.

[0120] In practice, the connection method between the sleeper beam structure 30A, the traction beam 10A, and the side beam 20 is as follows:

[0121] The inner end of the upper cover plate 31 of the bolster beam structure 30A is fixedly connected to the first top plate 111 of the traction beam 10A by fasteners.

[0122] The inner end of the lower cover plate 32 of the bolster structure 30A (i.e., the third plate portion 323) is fixedly connected to the bottom cover plate 12 of the draw beam 10A through fasteners; in actual setting, the inner end face of the third plate portion 323 of the lower cover plate 32 can abut against the first bottom plate 113 of the draw beam 10A.

[0123] The bent plate portion 331 at the inner end of the web 33 of the bolster structure 30A is fixedly connected to the first side plate 112 of the draw beam 10A through fasteners.

[0124] Combined Figure 2-4 、 Figure 9-10 It can be seen that the structure at the inner end of the bolster structure 30A can avoid the position on the draw beam 10A for installing the center plate seat 64, which is convenient for the connection between the bolster structure 30A and the draw beam 10A and can avoid interference between the bolster structure 30A and the center plate seat 64.

[0125] The outer end of the upper cover plate 31 of the bolster structure 30A is fixedly connected to the second top plate 211 of the side beam 20 through fasteners.

[0126] The first support seat 34 fixedly connected to the outer end of the lower cover plate 32 of the bolster structure 30A is fixedly connected to the second side plate 212 of the side beam 20 through fasteners. Combined Figure 4 , the first support seat 34 has a "U" - shaped structure with an opening facing the side beam 20. In other embodiments, the first support seat 34 can also have other structural forms. Depending on its structure, if there is no interference, the first support seat 34 can also be fixedly connected to the second bottom plate 213 of the side beam 20.

[0127] The bent plate portion 331 at the outer end of the web 33 of the bolster structure 30A is fixedly connected to the second side plate 212 of the side beam 20 through fasteners.

[0128] From the docking structure of the bolster structure 30A with the draw beam 10A and the side beam 20 above, since both ends of the upper cover plate 31 of the bolster structure 30A extend out of the lower cover plate 32 and the web 33 in the vehicle width direction W, and the lower cover plate 32 and the web 33 cooperate with the side regions of the draw beam 10A and the side beam 20, the bolster structure 30A can be assembled with the draw beam 10A and the side beam 20 in a vertically descending manner during actual assembly, thus simplifying the assembly process.

[0129] During specific implementation, the connection mode of the end beam structure 40A with the draw beam 10A and the side beam 20 is as follows:

[0130] The inner end of the top plate portion 411 of the end beam structure 40A is fixedly connected to the first top plate 111 of the draw beam 10A through fasteners, and is also fixedly connected to the end beam connecting plate 13 fixedly connected to the draw beam 10A. Specifically, the top plate portion 411 is fixedly connected to the first connecting plate 131 of the end beam connecting plate 13. Combined Figure 1 , Figure 9 and Figure 13 Due to the installation of the impact seat mounting plate 15 and other related structures, the end beam structure 40A needs to make way for space. The fit space between the top plate 411 and the first top plate 111 of the traction beam 10A is limited. The installation of the end beam connecting plate 13 can enhance the reliability and strength of the connection between the top plate 411 and the traction beam 10A.

[0131] The inner end of the bottom plate 413 of the end beam structure 40A is fixedly connected to the first bottom plate 113 of the traction beam 10A by fasteners.

[0132] The inner end of the support beam 42 of the end beam structure 40A is fixedly connected to the end beam connecting plate 13 fixed to the traction beam 10A by fasteners. Specifically, the inner end of the support beam 42 is fixedly connected to the second connecting plate 132 of the end beam connecting plate 13.

[0133] The outer end of the top plate portion 411 of the end beam structure 40A is fixedly connected to the second top plate 211 of the side beam 20 by fasteners.

[0134] The outer end of the bottom plate portion 413 of the end beam structure 40A is fixedly connected to the second bottom plate 213 of the side beam 20 by fasteners.

[0135] The outer end of the support beam 42 of the end beam structure 40A is fixedly connected to the second support seat 22, which is fixedly connected to the second base plate 213 of the side beam 20, by fasteners.

[0136] The first plate of the connecting corner piece 43 of the end beam structure 40A is fixedly connected to the side plate 412 by fasteners, and the second plate of the connecting corner piece 43 is fixedly connected to the second side plate 212 of the side beam 20.

[0137] As can be seen from the docking structure of the end beam structure 40A with the traction beam 10A and the side beam 20, since the top plate portion 411 of the end beam structure 40A extends to the bottom plate portion 413 and the support beam 42 at both ends in the vehicle width direction W, and the support beam 42 and the bottom plate portion 413 are matched with the side areas of the traction beam 10A and the side beam 20, the end beam structure 40A can be assembled with the traction beam 10A and the side beam 20 in a vertical drop manner during actual assembly, thus simplifying the assembly process.

[0138] In this embodiment, the aforementioned fastening connection methods include riveting with rivets and bolting with bolts. That is, the fasteners can be rivets or bolts. When using bolting, bolts that meet structural strength requirements are selected.

[0139] like Figure 13 As shown, in specific implementation, a side foot pedal 54 can also be fixed at a position on the side beam 20 near the end beam structure 40A.

[0140] The foregoing has provided a detailed description of a railway flatcar and its body provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A railway flatcar body, comprising a traction beam and side beams located on both sides of the traction beam; characterized in that, It further includes bolster beams, and the bolster beams include two independent bolster beam structures which extend along the vehicle width direction. The outer ends of the bolster beam structures are fixedly connected to the side beams through fasteners, and the inner ends of the bolster beam structures are fixedly connected to the draw beams through fasteners; The bolster beam structure includes an upper cover plate, a lower cover plate and a web plate, and the web plate is fixedly connected between the upper cover plate and the lower cover plate; the distance between the outer end of the lower cover plate and the upper cover plate is less than the distance between the inner end of the lower cover plate and the upper cover plate; The outer end of the upper cover plate is fixedly connected to the top plate of the side beam through a fastener, and the inner end of the upper cover plate is fixedly connected to the top plate of the draw beam through a fastener; A first support seat is fixedly connected to the bottom surface of the outer end of the lower cover plate. The first support seat has a "C" - shaped structure with an opening facing the side beam. The first support seat is fixedly connected to the side plate of the side beam through a fastener, and the inner end of the lower cover plate is fixedly connected to the bottom cover plate of the draw beam through a fastener; There are two web plates, and the main bodies of the two web plates are arranged in parallel. The inner ends of the web plates have bent plate parts, and the bent plate parts at the inner ends of the web plates are fixedly connected to the side plates of the draw beam through fasteners to avoid the positions on the draw beam for installing the center plate seat; The inner end of the upper cover plate is closer to the longitudinal center line of the draw beam relative to the inner end of the lower cover plate, and the outer end of the upper cover plate is farther from the longitudinal center line of the draw beam relative to the outer end of the lower cover plate; the inner end of the lower cover plate is farther from the longitudinal center line of the draw beam relative to the inner end of the web plate.

2. The railway flatcar body according to claim 1, characterized in that, The web plate extends along the vehicle width direction, and the outer end of the web plate has a bent plate part. The bent plate part at the outer end of the web plate is fixedly connected to the side plate of the side beam through a fastener and the side plate of the side beam; 3. The railway flatcar body according to claim 2, characterized in that, There are two web plates, and several partition plates are fixedly connected between the two web plates.

4. The railway flatcar body according to any one of claims 1-3, characterized in that, The lower cover plate includes a first plate part, a second plate part and a third plate part connected in sequence. The first plate part and the third plate part are parallel to the horizontal plane, and the second plate part is inclined to the horizontal plane; the first plate part is closer to the upper cover plate relative to the third plate part; a side bearing wear plate is installed on the bottom surface of the third plate part.

5. The railway flatcar body according to claim 1, characterized in that, The vehicle body further includes end beams, and the end beams include two independent end beam structures which extend along the vehicle width direction. The outer ends of the end beam structures are fixedly connected to the side beams through fasteners, and the inner ends of the end beam structures are fixedly connected to the draw beams through fasteners.

6. The railway flatcar body according to claim 5, characterized in that, The end beam structure includes an end beam main body which extends along the vehicle width direction; The end beam main body includes a top plate part, a side plate part and a bottom plate part. The side plate part is fixedly connected between the top plate part and the bottom plate part, and the top plate part and the bottom plate part are on the same side of the side plate part; The outer end of the top plate part is fixedly connected to the top plate of the side beam through a fastener, and the inner end of the top plate part is fixedly connected to the top plate of the draw beam through a fastener; The outer end of the bottom plate part is fixedly connected to the bottom plate of the side beam through a fastener, and the inner end of the bottom plate part is fixedly connected to the bottom plate of the draw beam through a fastener.

7. The railway flatcar body according to claim 6, characterized in that, The end beam structure also includes a support beam, which is fixed to the top plate portion on the side relatively away from the side plate portion, and the support beam is closer to the pillow beam structure relative to the side plate portion. The bottom plate of the side beam is fixedly connected to a second support seat, and the side plate of the traction beam is fixedly connected to an end beam connecting plate. The outer end of the support beam is fixedly connected to the second support seat by fasteners, and the inner end of the support beam is fixedly connected to the end beam connecting plate by fasteners. The inner end of the top plate is also fixedly connected to the end beam connecting plate by fasteners.

8. The railway flatcar body according to claim 7, characterized in that, The inner end of the top plate portion is closer to the longitudinal centerline of the traction beam relative to the inner end of the bottom plate portion and the inner end of the support beam, while the outer end of the top plate portion is farther away from the longitudinal centerline of the traction beam relative to the outer end of the bottom plate portion and the outer end of the support beam.

9. The railway flatcar body according to claim 6, characterized in that, The end beam structure also includes connecting corner pieces, which include an integrally formed first plate and a second plate. The first plate is fixedly connected to the outer end of the side plate by fasteners, and the second plate is fixedly connected to the side plate of the side beam by fasteners.

10. The railway flatcar body according to claim 6, characterized in that, The end beam body also includes several stiffening plates, which are fixed between the top plate and the bottom plate.

11. The body of the railway flatcar according to any one of claims 5-10, wherein at least one of the end handrail, end foot pedal and side handrail is fixedly connected to at least one of the end beam structures by fasteners.

12. The railway flatcar body according to any one of claims 1-3 and 5-10, characterized in that, The vehicle body also includes a center beam, and the traction beam is the end portion of the center beam; the center beam includes a center beam body and a bottom cover plate; the center beam body extends along the length of the vehicle; The main body of the central beam is an integrally formed structure, which includes a first top plate, two first side plates and two first bottom plates. The first side plates extend downward from the side of the first top plate, and the first bottom plates extend outward from the bottom of the first side plates. The bottom cover plate is located in the area of ​​the main body of the middle beam used to connect with the bolster beam structure. The bottom cover plate is fixedly connected to the first bottom plate by fasteners. Along the vehicle width direction, both ends of the bottom cover plate extend beyond the first bottom plate.

13. The railway flatcar body according to claim 12, characterized in that, The middle beam also includes an end beam connecting plate, which is fixedly connected to the side of the first side plate facing the side beam. The end beam connecting plate includes a first connecting plate and a second connecting plate. The first connecting plate is on the same plane as the first top plate. The first connecting plate is used to be fixedly connected to the inner end of the end beam structure of the vehicle body. The second connecting plate is closer to the bolster beam structure relative to the first connecting plate and closer to the first bottom plate relative to the first connecting plate. The second connecting plate is used to be fixedly connected to the inner end of the end beam structure.

14. The railway flatcar body according to any one of claims 1-3 and 5-10, characterized in that, The side beam includes a side beam body extending along the length of the vehicle. The side beam body includes an integrally formed second top plate, a second side plate, and a second bottom plate. The second top plate is fixedly connected to the top edge of the second side plate, and the second bottom plate is fixedly connected to the bottom edge of the second side plate. The second top plate is located outside the second side plate, and the second bottom plate is located inside the second side plate.

15. The railway flatcar body according to claim 14, characterized in that, The side beam also includes a second support seat, which is fixedly connected to the second base plate and is used to be fixedly connected to the outer end of the end beam structure of the vehicle body.

16. The railway flatcar body according to claim 14, characterized in that, The second base plate is fixed to a top car pad by fasteners at the connection position with the bolster beam structure, and the top car pad is located on the bottom surface of the second base plate.

17. A railway flatcar, characterized in that, Includes the vehicle body as described in any one of claims 1-16.

18. The railway flatcar according to claim 17, characterized in that, The railway flatcar is a container flatcar.

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