Detachable cantilever lateral extension platform for bridge erecting machine

Abstract

This utility model discloses a detachable cantilever lateral extension platform for a bridge erecting machine, designed to solve the technical problems of limited adjustment range and poor span adaptability of traditional bridge erecting machine operating platforms. It belongs to the technical field of bridge erecting machine operating platform structures. This utility model includes a structural unit comprising an I-beam. Two I-beams are grouped together, with at least three groups provided. Each group of I-beams is connected by two other I-beams. The two ends of each of the two I-beams are fixed to the webs of the two I-beams on either side. The bottom plate of the I-beams is supported by three other I-beams. Two three I-beams are grouped together, with each group of I-beams supported by two groups of three I-beams. The two groups of three I-beams are fixed to the pier cap beam via flanges.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge erecting machine operating platform structure, and specifically relates to a detachable cantilever lateral movement extension platform for bridge erecting machines. Background Technology

[0002] When traditional bridge erecting machines are used to erect the connecting sections of box girders and T-beams, the different geometric parameters of adjacent spans result in different bridge deck widths. At the narrower end, the transverse guide beam of the bridge erecting machine is suspended in the air, preventing the machine from moving to the side and limiting its adjustment range, thus making it impossible to erect the side beams. The current solution using a truck crane is costly and carries high safety risks.

[0003] This patent is installed at the pier cap beams on both sides of the narrow span. When it is used in bridge erection, if there are different beam types and different bridge deck widths between two adjacent spans, the bridge erecting machine can move laterally to the side beam erection position, which can ensure that the side beam can be erected smoothly. Utility Model Content

[0004] The purpose of this utility model is to provide a detachable cantilever lateral extension platform for bridge erecting machines, which solves the technical problems of limited adjustment range and poor span adaptability of traditional bridge erecting machine operating platforms.

[0005] This utility model is achieved using the following technical solution: The bridge erecting machine has a detachable cantilever lateral extension platform, which includes a structural unit. The structural unit includes an I-beam. Two I-beams are grouped together, and at least three groups are provided. Each group of I-beams is connected by two I-beams. The two ends of the two I-beams are fixed to the web plates of the two I-beams on both sides. The bottom plate of the I-beams is supported by three I-beams. Two three I-beams are grouped together, and each group of I-beams is supported by two groups of three I-beams. The two groups of three I-beams are fixed to the pier cap beam by flanges.

[0006] The two I-beams, I-beam 1 and I-beam 3, are fixed together by welding. In use, the two structural units are fixed to the top surface of the cap beams of the left and right piers of the railway line.

[0007] In a further preferred embodiment, each group of I-beams is connected by two I-beams, with the two I-beams symmetrically positioned at both ends of each group of I-beams. When the length of the I-beams is too long, a single I-beam cannot provide stable support between each group of I-beams, which can easily lead to uneven stress distribution and even tipping over. In this case, using two I-beams for support can avoid the aforementioned problems.

[0008] Preferably, the I-beam type one and I-beam type three are of the same type.

[0009] In a further preferred embodiment, a stiffening plate is provided between each I-beam and the flange.

[0010] This invention enables coordinated control of the platform's lateral sliding expansion and cantilever length adjustment, creating a multi-dimensional working space that effectively adapts to the construction needs of bridges with different spans and complex terrains. Its modular, quick-release structure significantly reduces transportation costs, and a bidirectional hydraulic synchronization system ensures stability during the expansion process. It provides an efficient, economical, and safe mechanized solution for modern bridge construction, solving the problem of bridge erecting machines being unable to be erected due to width limitations when transitioning between bridges of different spans. Attached Figure Description

[0011] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This diagram illustrates the working condition of the bridge erecting machine when its rear outriggers are supported by the cantilever extension platform.

[0014] Figure 2 This is a schematic diagram of the elevation of the present invention.

[0015] Figure 3 This is a side view of the present invention.

[0016] Figure 4 This is a schematic diagram of the flange of this utility model.

[0017] Figure 5 This is a schematic diagram of the threaded steel bar of this utility model.

[0018] Figure 6 This diagram shows the gasket of this utility model.

[0019] Figure 7 This diagram shows the reinforcing plate of this utility model.

[0020] Figure 8 This is a three-dimensional schematic diagram of the present invention.

[0021] In the diagram: 1-I-beam one, 2-I-beam three, 3-I-beam two, 4-flange, 5-threaded steel bar, 6-gasket, 7-nut, 8-stiffening plate. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0023] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0025] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Example

[0026] The bridge erecting machine's detachable cantilever lateral extension platform includes structural units. Each structural unit includes I-beams 1, arranged in groups of two, with at least three groups. Each group of I-beams 1 is connected by I-beams 2, with both ends of the I-beams 2 fixed to the webs of the two I-beams 1 on either side. The bottom plate of the I-beams is supported by I-beams 3, arranged in groups of two, with each group of I-beams 1 supported by two groups of I-beams 3, and the two groups of I-beams 3 are fixed to the pier cap beam by flanges 4. In specific implementation, the I-beams 1 are hot-rolled 40a I-beams, 1600mm in length, and there are six of them. The second I-beam 3 uses hot-rolled I-beam 14, with a length of 547.5mm, and there are 4 of them; The I-beam No. 32 uses hot-rolled I-beam 40a, with a length of 2300mm, and a quantity of 12. Flange 4 is made of Q235B flange 4-20x384x1200mm, and there are 3 of them; It should be noted that, in actual use, the appropriate I-beam type can be calculated through bridge mechanics calculations for different application scenarios.

[0027] Each group of I-beams 1 is connected by two I-beams 2 3, and the two I-beams 2 3 are symmetrically arranged at both ends of each group of I-beams 1.

[0028] The I-beam 1 and I-beam 32 are of the same model.

[0029] A stiffening plate 8 is provided between each I-beam 32 and flange 4.

[0030] The specific details are as follows: Every two sets of I-beams 32 are fixed to the bridge erecting machine by a flange 4. Specifically, the flange 4 has fixing holes on both sides, with two holes on one side, that is, one flange 4 has four fixing holes. One flange 4 is fixed to the pier cap beam by four gaskets 6, four nuts 7, and four threaded steel bars 5.

[0031] The threaded steel bar 5 has a size of Ф20x400mm, the washer 6 is Q235B with a size of -20x80x80mm, and the nut 7 is M20. Furthermore, each I-beam 32 is provided with a stiffening plate 8 fixed on one side of the I-beam 32 and the flange 4. In this embodiment, 12 stiffening plates 8 are required.

[0032] Furthermore, in order to be compatible with different bridge erecting machines, the I-beam 1 can be set to four sets, while increasing the number of other components.

[0033] Specifically, this embodiment is based on the construction of box girders and T-beams side beams using a 240t bridge erecting machine. During implementation, two support structure units are required. Each structure unit is fixed to the top surface of the pier cap beam on the left and right sides of the line. The threaded steel bars 5 are pre-anchored to the pier cap beam, with an appropriate length reserved. Finally, the present invention is fixed to the threaded steel bars 5 with nuts 7.

[0034] After installation, the top surface of this utility model is flush with the top surface of the previously erected side beam. Specifically, wooden stacks are placed on the top surface of this utility model and the top surface of the previously erected side beam. The transverse guide beam of the bridge erecting machine is hoisted onto the top surface of the wooden stacks. The length of the transverse guide beam must be sufficient to meet the needs of the side beam erection. When the bridge erecting machine is running, the transverse movement refers to the distance between the end of the transverse track and the limiting device being 30cm, in order to accommodate the needs of the side beam erection.

[0035] All welds in this embodiment are fillet welds, with a weld height of 8mm.

[0036] When using this invention, the surrounding edges are deburred and sharp corners are polished smooth.

[0037] This invention can be applied to the problem of side beams being unable to be erected due to width issues during the transition between bridges of different spans.

[0038] This utility model facilitates worker operation, reduces economic costs, is easy to install, dismantle, and relocate, further improves construction efficiency, and is simple, convenient to construct, thus shortening the construction period.

[0039] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.

Claims

1. A detachable cantilever lateral extension platform for a bridge erecting machine, characterized in that: The structure includes a structural unit, which includes an I-beam (1). Two I-beams (1) are grouped together, and at least three groups are provided. Each group of I-beams (1) is connected by an I-beam (3). The two ends of the I-beam (3) are fixed to the web of the I-beams (1) on both sides. The bottom plate of the I-beam is supported by an I-beam (2). Two I-beams (2) are grouped together. Each group of I-beams (1) is supported by two groups of I-beams (2), and the two groups of I-beams (2) are fixed to the pier cap beam by flanges (4).

2. The detachable cantilever lateral extension platform for bridge erecting machine according to claim 1, characterized in that: Each set of I-beams (1) is connected by two I-beams (3), and the two I-beams (3) are symmetrically arranged at both ends of each set of I-beams (1).

3. The bridge-launching machine demountable jumbo cantilever traverse extension platform according to claim 2, characterized in that: The I-beam 1 (1) and I-beam 3 (2) are of the same model.

4. The bridge-launching machine demountable jumbo cantilever traverse extension platform according to claim 3, characterized in that: A stiffening plate (8) is provided between each I-beam (2) and flange (4).

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