A riveted center beam structure

Abstract

The present invention relates to a riveted center beam structure, comprising a traction beam and a central truss beam. The traction beam comprises two layers of webs, with the inner web spacing being 350 mm and the outer web spacing being the same width as the central truss beam. The central truss beam comprises diagonal braces and vertical braces to form a triangular stable structure. The central truss beam upper cover plate and the central truss beam lower cover plate are overlapped on the top of the traction beam, and the central truss beam lower cover plate is overlapped on the bottom of the traction beam. In addition, the central truss beam upper cover plate is fastened to the top of the traction beam, the central truss beam lower cover plate is fastened to the bottom of the traction beam, and the traction beam connecting columns are fastened to the central truss beam connecting columns. The modular assembly mode of the present invention adapts to the requirements of vehicles of different lengths, is easy to install, and the transition between the traction beam and the fish belly beam is smooth.

Description

Technical Field

[0001] The present invention relates to the technical field of railway freight car beams, and in particular to a riveted center beam structure. Background Art

[0002] The center beams of my country's railway freight cars are all welded structures, and riveted structures are considered to be the new direction for future industrial upgrading.

[0003] Among them, the center beam of railway freight cars is usually a traditional welded fish belly center beam, which needs to change its cross-section in the width direction of the car body and the height direction of the car body. Only in this way can the design meet the vehicle's torsional resistance and vertical load requirements.

[0004] If this structure is applied to the riveted center beam structure, there are two ways: one is to increase the number of splicing sections and the number of rivets, which reduces the bearing capacity of the center beam and increases the probability of problems; the other is to stamp and bend the web as a whole, which increases the manufacturing difficulty and still requires welding in some parts.

[0005] Therefore, there is an urgent need for a riveted center beam structure with a smooth transition between the traction beam and the fish belly beam to meet the strength requirements. Summary of the Invention

[0006] The object of the present invention is to provide a riveted center beam structure to solve the problem of poor connection when the existing center beam structure is riveted in the above background technology.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A riveted center beam structure includes a traction beam and a middle truss beam, the middle truss beam includes a middle truss beam upper cover plate and a middle truss beam lower cover plate, the middle truss beam upper cover plate is overlapped on the top of the traction beam, and the middle truss beam lower cover plate is overlapped on the bottom of the traction beam, and the middle truss beam upper cover plate and the top of the traction beam, and the middle truss beam lower cover plate and the bottom of the traction beam are respectively fastened by riveting.

[0009] The riveted center beam structure, preferably, the middle truss beam further includes a triangular support assembly, a web and a connecting column, the web is riveted to the middle truss beam connecting column through the triangular support assembly, and the triangular support assembly has a hollow structure.

[0010] The riveted center beam structure, preferably, the triangular support assembly includes vertical supports, diagonal supports and connecting angle steels, the vertical supports are arranged between the webs, and the vertical supports are riveted to the webs, the diagonal supports are arranged at both ends of the webs, the side surfaces of the connecting angle steels are riveted to the vertical supports and the diagonal supports respectively, the adjacent diagonal supports and the connecting angle steels will form a triangular structure, the triangular structure is the hollow structure, the top of the connecting angle steel is riveted to the upper cover plate of the middle truss beam, the bottom of the connecting angle steel is riveted to the lower cover plate of the middle truss beam, and the end of the connecting angle steel is riveted to the connecting column of the middle truss beam.

[0011] In the riveted center beam structure, preferably, the middle truss beam further includes openings, and the web, the vertical brace and the diagonal brace are respectively provided with the openings.

[0012] The riveted center beam structure, preferably, the traction beam includes a traction beam upper cover plate, a traction beam lower cover plate, a web assembly and a traction beam connecting column, the middle truss beam upper cover plate is overlapped on the traction beam upper cover plate, and the middle truss beam upper cover plate and the traction beam upper cover plate are riveted, the traction beam upper cover plate is riveted to the upper wing surface of the web assembly, the middle truss beam lower cover plate is overlapped on the traction beam lower cover plate, and the middle truss beam lower cover plate and the traction beam lower cover plate are riveted, the traction beam lower cover plate is riveted to the lower wing surface of the web assembly, one end of the web assembly is riveted to the traction beam connecting column, the traction beam connecting column is riveted to the middle truss beam connecting column, and the height of one end of the web assembly riveted to the traction beam connecting column is higher than the height of the other end of the web assembly to form a fish belly structure.

[0013] The riveted center beam structure preferably comprises an inner web and an outer web, the outer web is arranged on the outside of the inner web, the traction beam connecting column is riveted to the outer web, the height of one end of the outer web connected to the traction beam connecting column is greater than the height of the other end of the outer web, the upper wing surface of the inner web and the upper wing surface of the outer web are riveted to the traction beam upper cover plate respectively, the lower wing surface of the inner web falls on the lower wing surface of the outer web, and the lower wing surface of the inner web and the lower wing surface of the outer web are riveted and fixed to the traction beam lower cover plate.

[0014] In the riveted center beam structure, preferably, the traction beam further includes a middle partition, and the middle partition is provided in the cavity between the inner web and the outer web.

[0015] In the riveted center beam structure, preferably, the traction beam further comprises a front cluster plate seat and a rear cluster plate seat, the front cluster plate seat being arranged at one end of the inner web, and the rear cluster plate seat being arranged at the other end of the inner web.

[0016] The present invention has the following advantages due to the adoption of the above technical solution:

[0017] 1. The riveted center beam structure of the present invention is conducive to the use of high-strength materials and lightweight materials, achieving product lightweighting while meeting strength requirements.

[0018] 2. Double-layer web structure: the upper cover of the middle truss beam is overlapped on the top of the traction beam, and the lower cover of the middle truss beam is overlapped on the bottom of the traction beam, which reduces the manufacturing and connection difficulty of the riveted structure and improves the torsional strength of the middle beam.

[0019] 3. The middle truss beam can be continuously extended in length through vertical bracing, diagonal bracing and connecting angle steel. The open structure is convenient for riveting. The diagonal bracing and vertical bracing form a triangular support mode, which ensures a stable structure.

[0020] 4. The hollow structure and openings of the middle truss beam can reduce its own weight.

[0021] The modular assembly mode of the present invention adapts to the requirements of vehicles of different lengths, is easy to install, and has a smooth transition between the traction beam and the fish belly beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention after connection;

[0023] Figure 2a A schematic structural diagram of the length of a middle truss beam according to the present invention;

[0024] Figure 2b This is a schematic diagram of the structure of the middle truss beam after the length of the present invention is changed;

[0025] Figure 3 This is a schematic diagram of the traction beam structure after removing the upper cover plate of the traction beam;

[0026] Figure 4 is a side sectional view of the traction beam;

[0027] Figure 5 It is the structural diagram of the middle truss beam;

[0028] Figure 6 Schematic diagram of the truss beam structure after removing the upper cover plate of the middle truss beam.

[0029] In the picture:

[0030] 1. Traction beam; 1.1. Inner web; 1.2. Outer web; 1.3. Middle partition; 1.4. Traction beam lower cover;

[0031] 1.5. Traction beam connecting column; 1.6. Rear cluster plate seat; 1.7. Front cluster plate seat; 1.8. Traction beam upper cover plate;

[0032] 2. Middle truss beam; 2.1. Upper cover plate of middle truss beam; 2.2. Middle truss beam connecting columns;

[0033] 2.3. Connecting angle steel; 2.4. Vertical bracing; 2.5. Web plate of middle truss beam; 2.6. Lower cover plate of middle truss beam;

[0034] 2.7, diagonal bracing; 2.8, opening; 2.9, hollow structure. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "top", "bottom", "one end" and "the other end" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "provided with" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0038] The present invention provides a riveted center beam structure. The present invention includes a traction beam and a center truss beam, wherein the center truss beam includes a center truss beam upper cover plate and a center truss beam lower cover plate. The center truss beam upper cover plate is overlapped on the top of the traction beam, and the center truss beam lower cover plate is overlapped on the bottom of the traction beam. In addition, the center truss beam upper cover plate and the top of the traction beam, and the center truss beam lower cover plate and the bottom of the traction beam are respectively fastened by riveting.

[0039] Example 1

[0040] like Figure 1As shown, a riveted center beam structure includes a traction beam 1 and a middle truss beam 2. The middle truss beam 2 includes a middle truss beam upper cover plate 2.1 and a middle truss beam lower cover plate 2.6. The middle truss beam upper cover plate 2.1 is overlapped on the top of the traction beam 1, and the middle truss beam lower cover plate 2.6 is overlapped on the bottom of the traction beam 1. In addition, the middle truss beam upper cover plate 2.1 and the top of the traction beam 1, and the middle truss beam lower cover plate 2.6 and the bottom of the traction beam 1 are fastened respectively by riveting.

[0041] like Figure 5 and Figure 6 As shown, the middle truss beam 2 also includes a triangular support assembly, a middle truss beam web 2.5 and a middle truss beam connecting column 2.2. The structure of the middle truss beam 2 is capable of transmitting longitudinal force, middle vertical load and torsional load. The middle truss beam web 2.5 is riveted to the middle truss beam connecting column 2.2 through the triangular support assembly, and the triangular support assembly has a hollow structure 2.9.

[0042] The triangular support assembly includes a vertical support 2.4, a diagonal support 2.7 and a connecting angle steel 2.3. The vertical support 2.4 is arranged between the middle truss beam web 2.5, and the vertical support 2.4 is riveted to the middle truss beam web 2.5. The diagonal support 2.7 is arranged at both ends of the middle truss beam web 2.5. The side surfaces of the connecting angle steel 2.3 are riveted with the vertical support 2.4 and the diagonal support 2.7 respectively. The adjacent diagonal support 2.7 and the connecting angle steel 2.3 will form a triangular structure. The triangular structure is a hollow structure 2.9. The top of the connecting angle steel 2.3 is riveted to the middle truss beam upper cover 2.1, the bottom of the connecting angle steel 2.3 is riveted to the middle truss beam lower cover 2.6, and the end of the connecting angle steel 2.3 is riveted to the middle truss beam connecting column 2.2.

[0043] like Figure 2a and 2b As shown, when in use, the middle truss beam 2 can continuously increase or decrease the length of the connecting angle steel 2.3 according to demand, and at the same time increase or decrease the diagonal brace 2.7 and the middle truss beam web 2.5 and the vertical brace 2.4, so as to realize the variable length of the middle truss beam 2 to meet the requirements of different vehicle lengths.

[0044] The middle truss beam 2 further includes openings 2.8, and the middle truss beam web 2.5, the vertical braces 2.4, and the diagonal braces 2.7 are respectively provided with openings 2.8. The hollow structure 2.9 and the openings 2.8 can reduce the deadweight.

[0045] like Figure 3As shown, the traction beam 1 includes a traction beam upper cover plate 1.8, a traction beam lower cover plate 1.4, a web assembly and a traction beam connecting column 1.5. The middle truss beam upper cover plate 2.1 is overlapped on the traction beam upper cover plate 1.8, and the middle truss beam upper cover plate 2.1 and the traction beam upper cover plate 1.8 are riveted together. The traction beam upper cover plate 1.8 is riveted to the upper wing surface of the web assembly. The middle truss beam lower cover plate 2.1 is overlapped on the traction beam lower cover plate 1.4. In addition, the lower cover plate 2.1 of the middle truss beam is riveted to the lower cover plate 1.4 of the traction beam, the lower cover plate 1.4 of the traction beam is riveted to the lower wing surface of the web assembly, one end of the web assembly is riveted to the traction beam connecting column 1.5, the traction beam connecting column 1.5 is riveted to the middle truss beam connecting column 2.2, and the height of one end of the web assembly riveted to the traction beam connecting column 1.5 is higher than the height of the other end of the web assembly to form a fish belly structure.

[0046] like Figure 3 and Figure 4 As shown, the web assembly includes an inner web 1.1 and an outer web 1.2, the outer web 1.2 is arranged on the outside of the inner web 1.1, the traction beam connecting column 1.5 is riveted to one end of the outer web 1.2, the inner web 1.1 extends from the other end of the outer web 1.2, the height of the end of the outer web 1.2 connected to the traction beam connecting column 1.5 is greater than the height of the other end of the outer web 1.2, the upper wing surface of the inner web 1.1 and the upper wing surface of the outer web 1.2 are riveted to the traction beam upper cover 1.8 respectively, the lower wing surface of the inner web 1.1 falls on the lower wing surface of the outer web 1.2, and the lower wing surface of the inner web 1.1 and the lower wing surface of the outer web 1.2 are riveted to the traction beam lower cover 1.4.

[0047] Among them, the inner web 1.1 is groove-shaped, and the inner spacing between the two inner webs 1.1 is the same as that of the welding car. Preferably, the spacing is 350 mm, which meets the installation spacing requirements of the front cluster plate seat 1.7 and the rear cluster plate seat 1.6.

[0048] The outer web 1.2 is in the shape of an "U" and the vertical distance between the two outer webs 1.2 is the same as the width of the middle truss beam.

[0049] The traction beam 1 further comprises a middle diaphragm 1.3, which is arranged in the cavity between the inner web 1.1 and the outer web 1.2.

[0050] The traction beam 1 further comprises a front cluster plate seat 1.7 and a rear cluster plate seat 1.6. The front cluster plate seat 1.7 is arranged at one end of the inner web 1.1, and the rear cluster plate seat 1.6 is arranged at the other end of the inner web 1.1.

[0051] The traction beam 1 of the present invention avoids the manufacturing difficulties of a single-layer web, which requires both variable width and height. The inner web 1.1 and outer web 1.2 are connected as a whole via the traction beam connection column 1.5, the traction beam upper cover 1.8, and the traction beam lower cover 1.4, and thus share the load.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A riveted center beam structure, comprising a traction beam and a center truss beam, characterized in that: The middle truss beam includes a middle truss beam upper cover plate and a middle truss beam lower cover plate, the middle truss beam upper cover plate is overlapped on the top of the traction beam, the middle truss beam lower cover plate is overlapped on the bottom of the traction beam, and the middle truss beam upper cover plate and the top of the traction beam, and the middle truss beam lower cover plate and the bottom of the traction beam are respectively fastened by riveting; The middle truss beam further includes a triangular support assembly, a web and a middle truss beam connecting column, the web is riveted to the middle truss beam connecting column through the triangular support assembly, and the triangular support assembly has a hollow structure; The traction beam includes a traction beam upper cover plate, a traction beam lower cover plate, a web assembly and a traction beam connecting column, the middle truss beam upper cover plate is overlapped on the traction beam upper cover plate, and the middle truss beam upper cover plate and the traction beam upper cover plate are riveted, the traction beam upper cover plate is riveted to the upper wing surface of the web assembly, the middle truss beam lower cover plate is overlapped on the traction beam lower cover plate, and the middle truss beam lower cover plate and the traction beam lower cover plate are riveted, the traction beam lower cover plate is riveted to the lower wing surface of the web assembly, one end of the web assembly is riveted to the traction beam connecting column, the traction beam connecting column is riveted to the middle truss beam connecting column, and the height of one end of the web assembly riveted to the traction beam connecting column is higher than the height of the other end of the web assembly to form a fish belly structure; The web assembly includes an inner web and an outer web, the outer web is arranged on the outside of the inner web, the traction beam connecting column is riveted to the outer web, the height of one end of the outer web connected to the traction beam connecting column is greater than the height of the other end of the outer web, the upper wing surface of the inner web and the upper wing surface of the outer web are riveted to the traction beam upper cover plate respectively, the lower wing surface of the inner web falls on the lower wing surface of the outer web, and the lower wing surface of the inner web and the lower wing surface of the outer web are riveted to the traction beam lower cover plate.

2. The riveted center beam structure according to claim 1, characterized in that: The triangular support assembly includes vertical supports, diagonal supports and connecting angle steels. The vertical supports are arranged between the webs and riveted to the webs. The diagonal supports are arranged at both ends of the webs. The side surfaces of the connecting angle steels are riveted to the vertical supports and the diagonal supports respectively. The adjacent diagonal supports and the connecting angle steels will form a triangular structure. The triangular structure is the hollow structure. The top of the connecting angle steel is riveted to the upper cover plate of the middle truss beam, the bottom of the connecting angle steel is riveted to the lower cover plate of the middle truss beam, and the end of the connecting angle steel is riveted to the connecting column of the middle truss beam.

3. The riveted center beam structure according to claim 2, characterized in that: The middle truss beam further comprises openings, and the web, the vertical brace and the diagonal brace are respectively provided with the openings.

4. The riveted center beam structure according to claim 3, characterized in that: The traction beam further includes a middle diaphragm, and the middle diaphragm is arranged in the cavity between the inner web and the outer web.

5. The riveted center beam structure according to claim 4, characterized in that: The traction beam further comprises a front cluster plate seat and a rear cluster plate seat, wherein the front cluster plate seat is arranged at one end of the inner web plate, and the rear cluster plate seat is arranged at the other end of the inner web plate.

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