Box-shaped end beam adaptive to horizontal tail pin car coupler

Abstract

The invention discloses a box-shaped end beam matched with a horizontal tail pin coupler, relates to the technical field of railway wagons, solves the existing technical problems, and comprises two end beam composition units symmetrically arranged on the two sides of a middle beam assembly. Each end beam composition unit comprises an upper cover plate, a lower cover plate, an external web plate, an internal web plate, a reinforcing plate, an end sealing plate and a lock bracket bearing plate; the outer web and the inner web are arranged between the upper cover plate and the lower cover plate, the lock seat bearing plate is arranged on the side, away from the middle beam assembly, of the upper cover plate, and the end sealing plate is arranged between the end sealing plate and the lower cover plate. The upper cover plate, the lower cover plate, the outer web, the inner web end sealing plate and the lock seat bearing plate jointly form a variable cross-section box-shaped structure. And the stiffening plate is arranged in the middle of the variable cross-section box-shaped structure. The cross section, far away from the middle beam assembly, of the variable-cross-section box-shaped structure is smaller than the cross section, close to the middle beam assembly, of the variable-cross-section box-shaped structure. Enough space is reserved at the connecting part of the horizontal coupler yoke pin and the middle beam assembly to ensure the assembly and work of the horizontal coupler yoke pin.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of railway freight cars, and more particularly to the technical field of box-shaped end beam adapted to horizontal tail pin coupler. BACKGROUND

[0002] Railway freight car couplers are mainly divided into vertical pin couplers and horizontal tail pin couplers according to the installation direction of the tail pin. The horizontal tail pin coupler is often applied to vehicles with L-shaped end beams or other non-closed end beam structures due to its special structure and assembly process, and cannot be applied to vehicles with existing box-shaped end beams.

[0003] As an important load-bearing component in the vehicle underframe, the end beam bears large vertical and longitudinal loads. The box-shaped end beam has good mechanical properties and light weight, and the use of the box-shaped end beam is of great significance to improve the load capacity of the vehicle and improve the safety of transportation. SUMMARY

[0004] The purpose of the present application is to solve the above technical problems, and the present application provides a box-shaped end beam adapted to a horizontal tail pin coupler.

[0005] In order to achieve the above-mentioned purpose, the present application specifically adopts the following technical solutions: The present application provides a box-shaped end beam adapted to a horizontal tail pin coupler, which comprises two end beam component units symmetrically arranged on both sides of a center beam assembly. Each end beam component unit comprises an upper cover plate, a lower cover plate, an outer web, an inner web, a reinforcing plate, an end plate, and a lock seat bearing plate. The outer web and the inner web are arranged between the upper cover plate and the lower cover plate, the lock seat bearing plate is arranged on the side of the upper cover plate away from the center beam assembly, and the end plate is arranged between the end plate and the lower cover plate. The upper cover plate, the lower cover plate, the outer web, the inner web, the end plate, and the lock seat bearing plate jointly form a variable cross-section box-shaped structure. The reinforcing plate is arranged in the middle of the variable cross-section box-shaped structure. The transverse cross-section of the variable cross-section box-shaped structure away from the center beam assembly is smaller than the transverse cross-section of the variable cross-section box-shaped structure close to the center beam assembly. There is enough space reserved at the connection part with the center beam assembly to ensure the assembly and operation of the horizontal coupler tail pin.

[0006] In one embodiment, the lower cover plate is a one-time bending structure, the inner web is a Z-shaped two-time bending structure, the lower cover plate changes in cross-section along the vehicle transversely downward, and the inner web changes in cross-section along the vehicle body longitudinally inward.

[0007] In one embodiment, the upper cover plate is a flat plate structure, the outer part of the upper cover plate is provided with a linear upper outer flange connected with the outer web, the inner part of the upper cover plate is provided with a composite linear upper inner flange, and the width of the side of the upper cover plate close to the center beam assembly is greater than the width of the side of the upper cover plate away from the center beam assembly. The compound line type of the upper inner flange is in the shape of a straight line plus an arc line; the cross section is enlarged at the end beam root near one end of the middle beam assembly along the vehicle transverse direction; the longitudinal impact resistance of the structure is improved; The upper special-shaped hole is arranged in the middle of the upper cover plate; the shape of the upper special-shaped hole matches the upper outer flange and the upper inner flange on the upper cover plate; the arrangement of the special-shaped hole realizes lightweight design and improves the assembly process of the horizontal tail pin.

[0008] Specifically, a large arc is used to transition the welding position between the upper cover plate and the middle beam assembly.

[0009] In one embodiment, the lower cover plate is a variable cross-section bending structure along the vehicle transverse direction; the lower cover plate is externally provided with a straight line type lower outer flange connected with the outer web plate, and is internally provided with a compound line type lower inner flange; the width of the lower cover plate near one side of the middle beam assembly is greater than the width of the lower cover plate away from the middle beam assembly. The compound line type of the lower inner flange is in the shape of a straight line plus an oblique line plus a circular arc structure; the cross section is enlarged at the end beam root near one end of the middle beam assembly along the vehicle transverse direction; the longitudinal impact resistance of the structure is improved; The lower special-shaped hole is arranged on the inclined surface of the lower cover plate; the shape of the lower special-shaped hole matches the lower outer flange and the lower inner flange on the lower cover plate; the arrangement of the lower special-shaped hole realizes lightweight design and improves the assembly process of the horizontal tail pin.

[0010] The vertical projections of the lower special-shaped hole and the upper special-shaped hole coincide.

[0011] Specifically, a large arc is used to transition the welding position between the lower cover plate and the middle beam assembly. The shape of the lower special-shaped hole matches the surrounding flange; the size of the lower special-shaped hole satisfies the assembly space of the horizontal tail pin.

[0012] In one embodiment, the outer web plate is a flat plate structure; the outer web plate includes a straight line type web plate upper flange welded with the upper cover plate; the outer web plate further includes a compound line type web plate lower flange welded with the lower cover plate, and the web plate lower flange is a compound line type of a straight line plus an oblique line; the compound line type of the web plate lower flange matches the bending line type of the lower cover plate.

[0013] In one embodiment, the inner web plate is a Z-shaped twice bending structure; the beam cavity size is increased at the end beam root along the vehicle transverse direction; sufficient space is provided for the horizontal tail pin to move; the inner web plate includes an inner web plate upper flange and an inner web plate lower flange; The horizontal projection of the inner web plate upper flange of the inner web plate is a straight line; The vertical projection of the inner web plate lower flange of the inner web plate is a straight line plus an oblique line plus a straight line.

[0014] In one embodiment, the reinforcing plate is arranged at a variable cross-section position of the inner cavity of the variable cross-section box-shaped structure; and the reinforcing plate is welded with the upper cover plate, the lower cover plate, the outer web plate and the inner web plate respectively.

[0015] In one embodiment, a downward opening U-shaped notch is formed on the lower side of the reinforcing plate to provide assembly space for the horizontal tail pin.

[0016] In one embodiment, the lock seat bearing plate is used to bear the container corner fittings, and has an unequal thickness structure in the transverse direction of the vehicle body; the thin end of the lock seat bearing plate is spliced with the upper cover plate; and the thick end of the lock seat bearing plate is provided with a circular hole for mounting the container locking device.

[0017] In one embodiment, the end beam rib plate is welded on the end sealing plate, and the upper and lower ends of the end beam rib plate are welded with the upper cover plate and the lower cover plate respectively.

[0018] The beneficial effects of the present application are as follows: 1. The upper cover plate and the lower cover plate of the present application are both large circular arc transition structures at the connection position with the center beam; and have strong longitudinal impact resistance. The upper cover plate and the lower cover plate are both provided with special-shaped holes; the hole shape matches the outer flange; the holes are projected in the vertical direction; the special-shaped hole of the upper cover plate and the special-shaped hole of the lower cover plate are coincident. The holes can assist the assembly of the horizontal hook tail pin; the hole of the lower cover plate is located on the cross-section change surface; the horizontal hook tail pin can pass through the hole; and sufficient movement space is reserved.

[0019] 2. The inner web plate of the present application is a twice-bent Z-shaped structure; the lower cover plate is a once-bent structure; the end beam section is enlarged in the longitudinal and vertical directions of the vehicle; and the use needs of the horizontal tail pin hook are met.

[0020] 3. The strength and rigidity needs of heavy load vehicles are met; and the assembly and use needs of the horizontal tail pin hook are met.

[0021] 4. Compared with the existing L-shaped end beam of the horizontal tail pin hook vehicle, the box-shaped end beam has high structural strength, large rigidity, strong bearing capacity and small deformation; and can meet the use needs of heavy load vehicles.

[0022] 5. Compared with the existing box-shaped end beam, the box-shaped end beam of the present application has a variable cross-section in the transverse direction of the vehicle; the root section is large; and can meet the use needs of the horizontal tail pin hook.

[0023] 6. Compared with the existing box-shaped end beam, the upper and lower cover plates of the box-shaped end beam of the present application are both provided with special-shaped holes; the assembly space of the horizontal tail pin is met; and the light weight needs are also considered. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Figure 1 is a structural schematic diagram of a box-shaped end beam of the present application adapted to a horizontal tail pin coupler; Figure 2 is an axial view of the present application hiding the internal web; Figure 1 Figure 3 is an axial view of the present application hiding the upper cover plate and the lock seat bearing plate; Figure 1 Reference signs: 1, upper cover plate; 2, lower cover plate; 3, external web; 4, internal web; 5, end closure plate; 6, reinforcing plate; 7, lock seat bearing plate; 1.1, upper external flange; 1.2, upper internal flange; 1.3, upper special-shaped hole; 2.1, lower external flange; 2.2, lower internal flange; 2.3, lower special-shaped hole; 3.1, web upper flange; 3.2, web lower flange; 4.1, internal web upper flange; 4.2, internal web lower flange; 6.1, U-shaped notch. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and technical effects of the present application more clear, the following will combine the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] ​​It should be noted that like numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it should not be further defined and explained in subsequent views. In addition, the terms "first", "second", and the like are used only to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", and the like is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed during use, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] Embodiment 1 The embodiment provides a box-shaped end beam adapted to a horizontal tail pin coupler, which comprises two end beam component units symmetrically arranged on both sides of a center beam assembly, each of the end beam component units comprises an upper cover plate 1, a lower cover plate 2, an outer web plate 3, an inner web plate 4, a reinforcing plate 6, an end sealing plate 5, and a lock seat bearing plate 7. The outer web plate 3 and the inner web plate 4 are arranged between the upper cover plate 1 and the lower cover plate 2, the lock seat bearing plate 7 is arranged on the side of the upper cover plate 1 away from the center beam assembly, and the end sealing plate 5 is arranged between the end sealing plate 5 and the lower cover plate 2. The upper cover plate 1, the lower cover plate 2, the outer web plate 3, the inner web plate 4, the end sealing plate 5, and the lock seat bearing plate 7 jointly form a variable cross-section box-shaped structure, the reinforcing plate 6 is arranged in the middle of the variable cross-section box-shaped structure, the transverse cross-section of the variable cross-section box-shaped structure away from the center beam assembly is smaller than the transverse cross-section of the variable cross-section box-shaped structure close to the center beam assembly, and sufficient space is reserved at the connection part with the center beam assembly to ensure the assembly and work of the horizontal coupler tail pin.

[0031] Embodiment 2 The embodiment provides a box-shaped end beam adapted to a horizontal tail pin coupler, which comprises two end beam component units symmetrically arranged on both sides of a center beam assembly, each of the end beam component units comprises an upper cover plate 1, a lower cover plate 2, an outer web plate 3, an inner web plate 4, a reinforcing plate 6, an end sealing plate 5, and a lock seat bearing plate 7. The outer web plate 3 and the inner web plate 4 are arranged between the upper cover plate 1 and the lower cover plate 2, the lock seat bearing plate 7 is arranged on the side of the upper cover plate 1 away from the center beam assembly, and the end sealing plate 5 is arranged between the end sealing plate 5 and the lower cover plate 2. The upper cover plate 1, the lower cover plate 2, the outer web 3, the inner web 4, the end plate 5 and the lock seat bearing plate 7 jointly constitute a variable cross-section box structure; the reinforcing plate 6 is arranged in the middle of the variable cross-section box structure, the transverse section of the variable cross-section box structure away from the middle beam assembly is smaller than the transverse section of the variable cross-section box structure close to the middle beam assembly; and sufficient space is reserved at the connection part with the middle beam assembly to ensure the assembly and work of the horizontal hook tail pin.

[0032] The lower cover plate 2 is a one-time bending structure; the inner web 4 is a Z-shaped two-time bending structure; the lower cover plate 2 is variable in cross-section along the vehicle transverse direction downward; and the inner web 4 is variable in cross-section along the vehicle longitudinal direction to the inside of the vehicle body.

[0033] The upper cover plate 1 is a flat plate structure; the upper cover plate 1 is externally provided with a linear upper outer flange 1.1 connected with the outer web 3, and is internally provided with a composite linear upper inner flange 1.2; and the width of the upper cover plate 1 close to the middle beam assembly is greater than the width of the upper cover plate 1 away from the middle beam assembly. The composite linear upper inner flange 1.2 is in the shape of a straight line plus an arc line; the cross-section is enlarged at the end beam root close to the middle beam assembly along the vehicle transverse direction; and the longitudinal impact resistance of the structure is improved. The upper cover plate 1 is provided with an upper special-shaped hole 1.3 in the middle; the shape of the upper special-shaped hole 1.3 matches the upper outer flange 1.1 and the upper inner flange 1.2 on the upper cover plate 1; the special-shaped hole 1.3 is arranged to realize lightweight design and improve the assembly process of the horizontal tail pin.

[0034] Specifically, a large circular arc is adopted for the welding position of the upper cover plate 1 and the middle beam assembly.

[0035] Embodiment 3 This embodiment is further optimized on the basis of embodiment 2, and specifically: The lower cover plate 2 is a variable cross-section bending structure along the vehicle transverse direction; the lower cover plate 2 is externally provided with a linear lower outer flange 2.1 connected with the outer web 3, and is internally provided with a composite linear lower inner flange 2.2; and the width of the lower cover plate 2 close to the middle beam assembly is greater than the width of the lower cover plate 2 away from the middle beam assembly. The composite linear lower inner flange 2.2 is in the shape of a straight line plus an inclined line plus a circular arc structure; the cross-section is enlarged at the end beam root close to the middle beam assembly along the vehicle transverse direction; and the longitudinal impact resistance of the structure is improved. The slope of the lower cover plate 2 is provided with a lower special-shaped hole 2.3; the shape of the lower special-shaped hole 2.3 matches the lower outer flange 2.1 and the lower inner flange 2.2 on the lower cover plate 2; the arrangement of the lower special-shaped hole 1.3 realizes lightweight design and improves the assembly process of the horizontal tail pin.

[0036] The vertical projections of the lower special-shaped hole 2.3 and the upper special-shaped hole 1.3 coincide.

[0037] Specifically, the lower cover plate 2 adopts a large circular arc transition at the welding position with the middle beam group; the shape of the lower special-shaped hole 2.3 matches the surrounding flange; and the size of the lower special-shaped hole 2.3 meets the assembly space of the horizontal tail pin.

[0038] Embodiment 4 This embodiment is further optimized on the basis of Embodiment 3, specifically: The outer web plate 3 is a flat plate structure; the outer web plate 3 includes a straight line type web plate upper flange 3.1 welded with the upper cover plate 1; the outer web plate 3 further includes a composite line type web plate lower flange 3.2 welded with the lower cover plate 2, the web plate lower flange 3.2 is a composite line type of straight line plus inclined line; and the composite line type of the web plate lower flange 3.2 matches the bending line type of the lower cover plate 2.

[0039] The inner web plate 4 is a Z-shaped twice-bent structure; the beam cavity size is increased at the end beam root in the vehicle transverse direction; sufficient space is provided for the horizontal tail pin to move; the inner web plate 4 includes an inner web plate upper flange 4.1 and an inner web plate lower flange 4.2; The horizontal projection of the inner web plate upper flange 4.1 of the inner web plate 4 is a straight line; The vertical projection of the inner web plate lower flange 4.2 of the inner web plate 4 is a straight line plus an inclined line plus a straight line.

[0040] Embodiment 5 This embodiment is further optimized on the basis of Embodiment 4, specifically: The reinforcing plate 6 is arranged at the variable cross-section position of the inner cavity of the variable cross-section box structure; and the reinforcing plate 6 is welded with the upper cover plate 1, the lower cover plate 2, the outer web plate 3, and the inner web plate 4, respectively.

[0041] A downward-opening U-shaped notch 6.1 is formed on the lower side of the reinforcing plate 6, which provides assembly space for the horizontal tail pin.

[0042] Embodiment 6 This embodiment is further optimized on the basis of Embodiment 4, specifically: The lock seat bearing plate 7 is used to bear the container corner fittings and is of unequal thickness in the transverse direction of the vehicle body, the thin end of the lock seat bearing plate 7 is spliced with the upper cover plate 1, and the thick end of the lock seat bearing plate 7 is provided with a circular hole for mounting a container locking device.

[0043] Further comprising an end beam rib plate welded on the end sealing plate, the upper and lower ends of the end beam rib plate are welded with the upper cover plate 1 and the lower cover plate 2 respectively.

Claims

1. A box-shaped end beam adapted for a horizontal end pin coupler, characterized in that: It comprises two end beam component units symmetrically arranged on both sides of the center beam assembly, each of the end beam component units comprising an upper cover plate (1), a lower cover plate (2), an outer web plate (3), an inner web plate (4), a reinforcement plate (6), an end sealing plate (5) and a lock seat bearing plate (7); The outer web (3) and the inner web (4) are arranged between the upper cover (1) and the lower cover (2), the lock seat bearing plate (7) is arranged on a side of the upper cover (1) away from the center beam assembly, and the end sealing plate (5) is arranged between the end sealing plate (5) and the lower cover (2); The upper cover plate (1), the lower cover plate (2), the outer web plate (3), the end sealing plate (5) of the inner web plate (4), and the lock seat bearing plate (7) together constitute a variable-section box-shaped structure; the reinforcing plate (6) is arranged in the middle of the variable-section box-shaped structure, and the transverse cross-section of the variable-section box-shaped structure away from the center beam assembly is smaller than the transverse cross-section of the variable-section box-shaped structure close to the center beam assembly.

2. A box-shaped end beam adapted for a horizontal end pin coupler according to claim 1, characterized in that: The lower cover plate (2) is a single-bending structure; the internal web (4) is a Z-shaped double-folding structure; the lower cover plate (2) changes its cross-section downward along the vehicle transverse direction; and the internal web (4) changes its cross-section toward the interior of the vehicle along the vehicle longitudinal direction.

3. The box-shaped end beam adapted for a horizontal end pin coupler according to claim 1, characterized in that: The upper cover plate (1) is a flat plate structure; a straight upper outer flange (1.1) connected to the outer web (3) is provided on the outside of the upper cover plate (1); a composite linear upper inner flange (1.2) is provided on the inside of the upper cover plate (1); the width of the upper cover plate (1) on the side close to the center beam assembly is greater than the width of the upper cover plate (1) on the side away from the center beam assembly; The composite line shape of the upper inner flange (1.2) is a straight line plus an arc shape; An upper special-shaped hole (1.3) is provided in the middle of the upper cover plate (1); the shape of the upper special-shaped hole (1.3) matches the upper outer flange (1.1) and the upper inner flange (1.2) on the upper cover plate (1).

4. A box-shaped end beam adapted for a horizontal end pin coupler according to claim 2, characterized in that: The lower cover plate (2) is a variable cross-section bending structure along the transverse direction of the vehicle body; a straight lower outer flange (2.1) connected to the outer web (3) is provided on the outside of the lower cover plate (2); a composite linear lower inner flange (2.2) is provided on the inside of the lower cover plate (2); the width of the lower cover plate (2) on the side close to the center beam assembly is greater than the width of the lower cover plate (2) on the side away from the center beam assembly; The composite line shape of the lower inner flange (2.2) is a straight line plus an oblique line plus an arc structure; a lower special-shaped hole (2.3) is provided on the oblique surface of the lower cover plate (2); the shape of the lower special-shaped hole (2.3) matches the lower outer flange (2.1) and the lower inner flange (2.2) on the lower cover plate (2); The vertical projections of the lower special-shaped hole (2.3) and the upper special-shaped hole (1.3) coincide with each other.

5. The box-shaped end beam adapted for a horizontal end pin coupler according to claim 1, characterized in that: The external web (3) is a flat plate structure; the external web (3) includes a straight web upper flange (3.1) welded to the upper cover plate (1); the external web (3) also includes a composite web lower flange (3.2) welded to the lower cover plate (2), the composite web lower flange (3.2) being a composite linear shape of a straight line plus an oblique line; the composite linear shape of the web lower flange (3.2) matches the bending linear shape of the lower cover plate (2).

6. The box-shaped end beam adapted for a horizontal end pin coupler according to claim 1, characterized in that: The inner web (4) is a Z-shaped double-bend structure; the inner cavity size of the beam is increased at the root of the end beam along the vehicle transverse direction; sufficient movement space for the horizontal tail pin is provided; the inner web (4) includes an upper inner web flange (4.1) and a lower inner web flange (4.2); The horizontal projection of the flange (4.1) on the inner web of the inner web (4) is a straight line; The vertical projection of the inner web lower flange (4.2) of the inner web (4) is a straight line plus an oblique line plus a straight line.

7. The box-shaped end beam adapted for a horizontal end pin coupler according to claim 1, characterized in that: The reinforcing plate (6) is arranged at the position of the variable cross-section of the inner cavity of the variable cross-section box-shaped structure; the reinforcing plate (6) is welded to the upper cover plate (1), the lower cover plate (2), the outer web plate (3) and the inner web plate (4) respectively.

8. The box-shaped end beam adapted for a horizontal end pin coupler according to claim 7, characterized in that: A U-shaped notch (6.1) opening downward is provided on the lower side of the reinforcing plate (6) to provide assembly space for the horizontal tail pin.

9. The box-shaped end beam adapted for a horizontal end pin coupler according to claim 1, characterized in that: The lock seat bearing plate (7) is used to bear container corner pieces and has an uneven thickness structure along the transverse direction of the vehicle body. The thin end of the lock seat bearing plate (7) is spliced ​​with the upper cover plate (1), and the thick end of the lock seat bearing plate (7) is provided with a circular hole for mounting a container locking device.

10. The box-shaped end beam adapted for a horizontal end pin coupler according to claim 1, characterized in that: It also includes an end beam rib plate, which is welded to the end cover plate, and the upper and lower ends of the end beam rib plate are respectively welded to the upper cover plate (1) and the lower cover plate (2).

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