Modularized steel box girder bridge splicing platform

Abstract

The utility model belongs to the technical field of steel box girder bridge splicing processing, particularly relates to a modular steel box girder bridge splicing platform, and provides the following scheme aiming at the problems that a traditional splicing platform is fixedly arranged, cannot be adjusted and is inconvenient to splice a modular steel box girder bridge: the modular steel box girder bridge splicing platform comprises a bottom plate, two rotating mechanisms are arranged at the top of the bottom plate, steel box girder bridge fixing platforms are installed at the tops of the two rotating mechanisms, the two steel box girder bridge fixing platforms are used for placing steel box girder bridges and used for splicing the two steel box girder bridges, and the two rotating mechanisms comprise two circular truncated cones. One of the two circular truncated cones is fixedly installed on the bottom plate, and the other of the two circular truncated cones is movably connected with the bottom plate. Compared with a fixing platform in the prior art, the angle and position adjustable fixing platform has the function of being adjustable in angle and position, two steel box girder bridges can be conveniently aligned, and machining efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel box girder bridge splicing processing, in particular to a modular steel box girder bridge splicing platform. Background Art

[0002] Steel box girders, also known as steel plate box girders, are a common structural form for long-span bridges. They are generally used on bridges with large spans and are so-called because of their box-like appearance. Highly modular steel box girder bridges require high precision, requiring strict control over module dimensions, interface placement, and welding quality. Furthermore, each module must be manufactured and installed with extreme precision to ensure the stability and safety of the overall structure.

[0003] In actual use, steel box girder bridges need to be spliced ​​by welding. The splicing of steel box girder bridges is supported by a platform. The traditional splicing platform is fixed and cannot be adjusted, which is not convenient for modular steel box girder bridge splicing. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of traditional splicing platforms that are fixed and cannot be adjusted, making it inconvenient to splice modular steel box girder bridges, and to propose a modular steel box girder bridge splicing platform.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A modular steel box girder bridge splicing platform comprises a base plate, two rotating mechanisms are provided on the top of the base plate, steel box girder bridge fixing platforms are installed on the top of the two rotating mechanisms, and the two steel box girder bridge fixing platforms are used to place steel box girder bridges for splicing two steel box girder bridges.

[0007] Preferably, the two rotating mechanisms include two circular tables, one of the two circular tables is fixedly mounted on the base plate, the other of the two circular tables is movably connected to the base plate, circular grooves are provided on the tops of the two circular tables, rotating motors are provided inside the two circular grooves, and the two rotating motors are fixedly mounted on the two steel box girder bridge fixed platforms.

[0008] Preferably, the fixed platform of the steel box girder bridge includes a U-shaped platform, the bottom of the U-shaped platform is fixedly installed on the output shaft of the rotating motor, a limit plate is slidably installed in the U-shaped platform, and two electric push rods are fixedly installed on the outer side of the U-shaped platform, and the output shafts of the two electric push rods are fixedly installed on the limit plates; the two electric push rods push the corresponding limit plates to move, and the limit plates limit the steel box girder bridge.

[0009] Preferably, an annular groove is provided on the top of the truncated cone, and an annular block is fixedly installed on the bottom of the U-shaped platform, and the annular block is slidably connected to the inner wall of the annular groove. A plurality of balls are embedded in the bottom of the annular block, and the plurality of balls are slidably connected to the bottom inner wall of the annular groove; the horizontal angle adjustment of the U-shaped platform can be ensured by cooperating with the annular block and the annular groove, and the arranged balls can reduce the friction force of the rotation of the annular block.

[0010] Preferably, wiring holes are provided on the outer sides of the two frustums, and the wiring holes are connected to the circular grooves; the provided wiring holes are used to connect the rotating motor to electricity.

[0011] Preferably, an adjustment groove is provided on the top of the base plate, an adjustment block is slidably installed in the adjustment groove, the adjustment block is fixedly installed on the bottom of the other of the two frustums, a cylinder is fixedly installed in the adjustment groove, and the output shaft of the cylinder is fixedly installed on the adjustment block; the cylinder pushes the adjustment block to move, and the adjustment block drives the U-shaped platform on the left to approach the U-shaped platform on the right, so that the two steel box girder bridges are close to each other.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] This solution places two steel box girder bridges on top of two U-shaped platforms. Two electric push rods push the corresponding limit plates to move. The limit plates limit the position of the steel box girder bridges so that both steel box girder bridges fit in with the side walls of the U-shaped platforms.

[0014] In this solution, the cylinder pushes the adjustment block to move, and the adjustment block drives the left U-shaped platform to approach the right U-shaped platform, so that the two steel box girder bridges are close to each other. In order to align the gaps between the two steel box girder bridges, the rotary motor drives the U-shaped platform to rotate to adjust the angle of the steel box girder bridges. Then the two steel box girder bridges slowly approach each other, and the gaps between the steel box girder bridges can be aligned, which facilitates splicing processing.

[0015] Compared with the fixed platform of the traditional technology, the utility model has the function of adjusting the angle and position, which is convenient for aligning the two steel box girder bridges and can improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a modular steel box girder bridge splicing platform proposed in the utility model;

[0017] Figure 2 The utility model proposed Figure 1 Schematic diagram of the cross-sectional structure;

[0018] Figure 3 This is a structural schematic diagram of part A of a modular steel box girder bridge splicing platform proposed in the present utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the annular block and the ball bearings proposed in the present invention;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the steel box girder bridge proposed in the utility model.

[0021] In the figure: 1. Base plate; 11. Adjustment slot; 2. Rotating mechanism; 21. Round table; 22. Circular slot; 23. Rotating motor; 24. Wiring hole; 25. Annular slot; 26. Annular block; 27. Ball bearing; 3. Fixed platform of steel box girder bridge; 31. Electric push rod; 32. U-shaped platform; 33. Limiting plate; 4. Cylinder; 41. Adjustment block; 5. Steel box girder bridge. DETAILED DESCRIPTION

[0022] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all the embodiments.

[0023] Example

[0024] Reference Figure 1-5 A modular steel box girder bridge splicing platform includes a base plate 1. Two rotating mechanisms 2 are provided on the top of the base plate 1. Steel box girder bridge fixing platforms 3 are installed on the top of the two rotating mechanisms 2. The two steel box girder bridge fixing platforms 3 are used to place steel box girder bridges 5 for splicing two steel box girder bridges 5.

[0025] Reference Figure 3 In this embodiment, the two rotating mechanisms 2 include two circular platforms 21, one of the two circular platforms 21 is fixedly installed on the base plate 1, and the other of the two circular platforms 21 is movably connected to the base plate 1. A circular groove 22 is provided on the top of each of the two circular platforms 21, and a rotating motor 23 is provided inside each of the two circular grooves 22. The two rotating motors 23 are fixedly installed on the two steel box girder bridge fixed platforms 3.

[0026] Reference Figure 1 In this embodiment, the steel box girder bridge fixed platform 3 includes a U-shaped platform 32, the bottom of the U-shaped platform 32 is fixedly installed with the output shaft of the rotating motor 23, a limit plate 33 is slidably installed in the U-shaped platform 32, and two electric push rods 31 are fixedly installed on the outer side of the U-shaped platform 32, and the output shafts of the two electric push rods 31 are fixedly installed with the limit plates 33; the two electric push rods 31 push the corresponding limit plates 33 to move, and the limit plates 33 limit the steel box girder bridge 5.

[0027] Reference Figure 3 、 Figure 5In this embodiment, an annular groove 25 is provided on the top of the truncated table 21, and an annular block 26 is fixedly installed on the bottom of the U-shaped platform 32. The annular block 26 is slidably connected to the inner wall of the annular groove 25, and a plurality of balls 27 are embedded in the bottom of the annular block 26. The plurality of balls 27 are all slidably connected to the bottom inner wall of the annular groove 25; through the cooperation between the annular block 26 and the annular groove 25, the horizontal angle adjustment of the U-shaped platform 32 can be ensured, and the provided balls 27 can reduce the friction force of the rotation of the annular block 26.

[0028] Reference Figure 3 In this embodiment, wiring holes 24 are provided on the outer sides of the two truncated cones 21 , and the wiring holes 24 are connected to the circular groove 22 ; the wiring holes 24 are provided for connecting the rotating motor 23 to electricity.

[0029] Reference Figure 2 In this embodiment, an adjustment groove 11 is opened on the top of the base plate 1, and an adjustment block 41 is slidably installed in the adjustment groove 11. The adjustment block 41 is fixedly installed on the bottom of the other frustum 21 of the two frustums 21, and a cylinder 4 is fixedly installed in the adjustment groove 11. The output shaft of the cylinder 4 is fixedly installed on the adjustment block 41; the cylinder 4 pushes the adjustment block 41 to move, and the adjustment block 41 drives the U-shaped platform 32 on the left to approach the U-shaped platform 32 on the right, so that the two steel box girder bridges 5 are close to each other.

[0030] Working principle: turn on the power supply and controller, place the two steel box girder bridges 5 on the top of the two U-shaped platforms 32, and the two electric push rods 31 push the corresponding limit plates 33 to move. The limit plates 33 limit the steel box girder bridges 5 so that the two steel box girder bridges 5 are in contact with the side walls of the U-shaped platform 32. The cylinder 4 pushes the adjustment block 41 to move, and the adjustment block 41 drives the U-shaped platform 32 on the left to approach the U-shaped platform 32 on the right, so that the two steel box girder bridges 5 are close to each other. In order to align the gap between the two steel box girder bridges 5, the rotating motor 23 drives the U-shaped platform 32 rotations are performed to adjust the angle of the steel box girder bridge 5, and then the two steel box girder bridges 5 are slowly brought closer together, so that the gaps of the steel box girder bridges 5 can be aligned, which is convenient for splicing processing. Compared with the fixed platform of traditional technology, it has the function of adjusting the angle and position, which is convenient for aligning the two steel box girder bridges 5 and can improve processing efficiency. After the processing is completed, the fixation of the steel box girder bridge 5 is released and it can be removed. All structures in this application can be selected in terms of material and length according to actual usage. The accompanying drawings are all schematic structural diagrams, and the specific actual dimensions can be appropriately adjusted.

[0031] The above is only a preferred specific implementation method of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with this technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, and they should be covered by the protection scope of this embodiment.

Claims

1. A modular steel box girder bridge splicing platform, comprising a bottom plate (1), characterized in that: Two rotating mechanisms (2) are provided on the top of the base plate (1), and a steel box girder bridge fixing platform (3) is installed on the top of the two rotating mechanisms (2). The two steel box girder bridge fixing platforms (3) are used to place a steel box girder bridge (5) and are used for splicing two steel box girder bridges (5).

2. The modular steel box girder bridge splicing platform according to claim 1, characterized in that: The two rotating mechanisms (2) include two round platforms (21), one of the two round platforms (21) is fixedly mounted on the bottom plate (1), and the other of the two round platforms (21) is movably connected to the bottom plate (1). The tops of the two round platforms (21) are each provided with a circular groove (22), and the interiors of the two circular grooves (22) are each provided with a rotating motor (23). The two rotating motors (23) are fixedly mounted on the two steel box girder bridge fixed platforms (3).

3. The modular steel box girder bridge splicing platform according to claim 2, characterized in that: The steel box girder bridge fixed platform (3) comprises a U-shaped platform (32), the bottom of the U-shaped platform (32) is fixedly mounted to the output shaft of the rotating motor (23), a limit plate (33) is slidably mounted inside the U-shaped platform (32), and two electric push rods (31) are fixedly mounted on the outer side of the U-shaped platform (32), and the output shafts of the two electric push rods (31) are fixedly mounted to the limit plate (33).

4. The modular steel box girder bridge splicing platform according to claim 3, characterized in that: An annular groove (25) is provided on the top of the truncated table (21), and an annular block (26) is fixedly installed on the bottom of the U-shaped platform (32). The annular block (26) is slidably connected to the inner wall of the annular groove (25). A plurality of balls (27) are embedded in the bottom of the annular block (26), and the plurality of balls (27) are all slidably connected to the bottom inner wall of the annular groove (25).

5. The modular steel box girder bridge splicing platform according to claim 2, characterized in that: The outer sides of the two circular platforms (21) are each provided with a wiring hole (24), and the wiring hole (24) is communicated with the circular groove (22).

6. The modular steel box girder bridge splicing platform according to claim 2, characterized in that: An adjusting groove (11) is provided on the top of the bottom plate (1), an adjusting block (41) is slidably mounted in the adjusting groove (11), the adjusting block (41) is fixedly mounted to the bottom of the other of the two frustums (21), a cylinder (4) is fixedly mounted in the adjusting groove (11), and an output shaft of the cylinder (4) is fixedly mounted to the adjusting block (41).

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