A bridge machine variable span anchoring tool

Abstract

The utility model relates to the technical field of anchoring tool for bridge erecting machine variable span, and puts forward an anchoring tool for bridge erecting machine variable span, which comprises a rear support leg lower cross beam and a box girder, two groups of ballast cross beams are threadedly connected to the box girder, and each group of ballast cross beam is provided with a connecting device fixedly connected with the rear support leg lower cross beam. The utility model connects the support beam with the support frame through the finish rolling screw, connects the rear support leg lower cross beam with the ballast cross beam, and roots in the original embedded downpipe of the box girder top plate, so that the rear support leg of the bridge erecting machine is firmly fixed on the box girder and can better play the counterweight role, and the front beam transport vehicle can be removed, thereby avoiding the situation that the anchoring connection between the front beam transport vehicle and the rear support leg of the bridge erecting machine affects the transportation efficiency of the beam transport vehicle.

Description

Technical Field

[0001] This utility model relates to the technical field of anchorage fixtures for bridge erecting machines with varying spans, specifically an anchorage fixture for bridge erecting machines with varying spans. Background Technology

[0002] The JQSD1000 bridge erecting machine is designed to be used for erecting standard double-track precast concrete box girders of 24m, 32m, and 40m in length and between 24m and 40m in length on passenger railway lines with a speed of 250-350km / h. By removing a 16m segment at the front end, it can be used for erecting standard double-track precast concrete box girders of 20m, 24m, and 32m in length and between 20m and 32m in length on passenger railway lines with a speed of 250-350km / h.

[0003] When crossing the 24-meter span, the main beam of the bridge erecting machine has an excessively long front overhang. It is necessary to use the front of the beam transport vehicle to anchor the rear support leg of the bridge erecting machine as a counterweight for safety. However, this process will delay the beam transport vehicle by 3 hours, affecting its transportation efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anchoring fixture for a bridge erecting machine with variable spans, which solves the problem of the impact on the transportation efficiency of the bridge erecting machine caused by anchoring the front of the beam transport vehicle to the rear outriggers of the bridge erecting machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An anchoring fixture for a bridge erecting machine with variable span includes a rear leg lower crossbeam and a box girder, wherein two sets of ballast crossbeams are threadedly connected to the box girder.

[0007] Each set of ballast beams is equipped with a connecting device that is fixedly connected to the lower beam of the rear outrigger.

[0008] Preferably, the connecting device includes two sets of support frames that are slidably mounted on the ballast beam. Each set of support frames has a slot for cooperating with the ballast beam, and each set of support frames has two sets of connecting slots.

[0009] Preferably, the connecting device further includes two sets of precision-rolled threaded steel bars that are slidably connected to the support frame, and both sets of precision-rolled threaded steel bars are threadedly connected to the box girder. Two sets of support beams that are slidably connected to the precision-rolled threaded steel bars are installed on the support frame, and the lower crossbeam of the rear leg is located between the ballast crossbeam and the support beam.

[0010] Preferably, the connecting device further includes a gasket installed on the connecting groove and slidably connected to the fine-rolled threaded steel bar. Each set of the support beams is equipped with two sets of gaskets slidably connected to the fine-rolled threaded steel bar, and each set of gaskets is equipped with a fastening bolt threadedly connected to the fine-rolled threaded steel bar.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model, through the setting of a connecting device, connects the support beam and the support frame with precision-rolled threaded steel, thereby connecting the lower crossbeam of the rear support leg with the ballast crossbeam. Then, by utilizing the pre-embedded drainage holes on the top plate of the box girder, the rear support leg of the bridge erecting machine is firmly fixed to the box girder, which can better play the role of counterweight. The front beam transport vehicle can be removed, avoiding the situation where anchoring the front vehicle of the beam transport vehicle to the rear support leg of the bridge erecting machine would affect the transportation efficiency of the beam transport vehicle. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the connecting device of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of the support frame of this utility model.

[0017] In the diagram: 1. Lower crossbeam of rear support leg; 2. Box girder; 3. Ballast crossbeam; 4. Connecting device; 41. Support frame; 42. Slot; 43. Connecting slot; 44. Precision rolled threaded steel bar; 45. Support beam; 46. Shim; 47. Fastening bolt. Detailed Implementation

[0018] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] Because the need for anchoring the front of the beam transport vehicle to the rear outriggers of the bridge erecting machine impacts the transport efficiency of the beam transport vehicle, this problem is addressed by referring to... Figures 1-3 This embodiment proposes an anchoring fixture for a bridge erecting machine with variable span, including a rear leg lower crossbeam 1 and a box girder 2, with two sets of ballast crossbeams 3 threadedly connected to the box girder 2.

[0020] Each set of ballast beams 3 is equipped with a connecting device 4 that is fixedly connected to the lower beam 1 of the rear support leg. The connecting device 4 increases the counterweight of the rear half of the bridge erecting machine, ensuring the stability of the bridge erecting machine when passing through the span.

[0021] The connecting device 4 includes two sets of support frames 41 slidably mounted on the ballast beam 3. Each set of support frames 41 has a slot 42 for engaging with the ballast beam 3. The slot 42 allows the support frame 41 to be inserted into the ballast beam 3. Each set of support frames 41 also has two sets of connecting slots 43. The connecting device 4 also includes two sets of precision-rolled threaded steel bars 44 slidably connected to the support frames 41. The precision-rolled threaded steel bars 44 are used to connect the rear support leg lower crossbeam 1 to the ballast beam 3, and then the top plate of the box girder 2 is used for connection. The existing pre-embedded drainage holes are anchored, and both sets of precision-rolled threaded steel bars 44 are threadedly connected to the box girder 2. Two sets of support beams 45, slidably connected to the precision-rolled threaded steel bars 44, are installed on the support frame 41. The lower crossbeam 1 of the rear support leg is located between the ballast crossbeam 3 and the support beams 45. The connecting device 4 also includes gaskets 46 installed on the connecting groove 43 and slidably connected to the precision-rolled threaded steel bars 44. Each set of support beams 45 has two sets of gaskets 46 slidably connected to the precision-rolled threaded steel bars 44, and each set of gaskets 46 is equipped with… There are fastening bolts 47 that are threaded to the precision rolled threaded steel bar 44, which facilitates the connection of the anchoring fixture to the rear support leg of the bridge erecting machine. The anchoring fixture is then fixed to the top plate of the already erected box girder 2, increasing the counterweight of the rear half of the bridge erecting machine. Before the bridge erecting machine passes through the span, the box girder 2 is transported by front and rear beam transport vehicles, so that the front beam transport vehicle is located below the lower crossbeam 1 of the rear support leg of the bridge erecting machine. The support beam 45 is placed on the lower crossbeam 1 of the rear support leg, and the two sets of ballast crossbeams 3 are placed on the box girder 2. The lower crossbeam 1 of the rear support leg is clamped in the support frame 41. Between the support beam 45 and the support frame 41, the support beam 45 is connected to the support frame 41 by the shim 46 and the fastening bolt 47, and the lower crossbeam 1 of the rear support leg is connected to the ballast crossbeam 3. Then, the original pre-embedded drainage holes on the top plate of the box girder 2 are used for anchoring, so that the rear support leg of the bridge erecting machine can be firmly fixed on the box girder 2 and can better play the role of counterweight. The front beam transport vehicle can be removed, avoiding the situation where the anchoring connection between the front of the beam transport vehicle and the rear support leg of the bridge erecting machine affects the transportation efficiency of the beam transport vehicle.

[0022] Working principle: The box girder 2 is transported by front and rear beam transport vehicles. The front beam transport vehicle is positioned below the lower crossbeam 1 of the rear support leg of the bridge erecting machine. The support beam 45 is placed on the lower crossbeam 1 of the rear support leg, and two sets of ballast crossbeams 3 are placed on the box girder 2. The lower crossbeam 1 of the rear support leg is clamped between the support frame 41. With the action of the shims 46 and the fastening bolts 47, the support beam 45 is connected to the support frame 41 using precision-rolled threaded steel 44, so that the lower crossbeam 1 of the rear support leg is connected to the ballast crossbeam 3. Then, the pre-embedded drainage holes on the top plate of the box girder 2 are used for anchoring, so that the rear support leg of the bridge erecting machine is firmly fixed to the box girder 2, which can better play the role of counterweight. The front beam transport vehicle can be removed, avoiding the situation where the anchoring connection between the front of the beam transport vehicle and the rear support leg of the bridge erecting machine would affect the transportation efficiency of the beam transport vehicle.

[0023] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anchoring fixture for a bridge erecting machine with variable span, comprising a rear support lower crossbeam (1) and a box girder (2), characterized in that, The box girder (2) is threaded with two sets of ballast beams (3); Each of the ballast beams (3) is equipped with a connecting device (4) that is fixedly connected to the lower beam (1) of the rear support leg. The connecting device (4) includes two sets of support frames (41) that are slidably installed on the ballast beam (3). Each set of support frames (41) is provided with a slot (42) that is used in conjunction with the ballast beam (3). Each set of support frames (41) is provided with two sets of connecting slots (43). The connecting device (4) also includes two sets of fine-rolled threaded steel bars (44) that are slidably connected to the support frame (41), and both sets of fine-rolled threaded steel bars (44) are threadedly connected to the box girder (2). Two sets of support beams (45) that are slidably connected to the fine-rolled threaded steel bars (44) are installed on the support frame (41), and the rear leg lower crossbeam (1) is located between the ballast crossbeam (3) and the support beam (45). The connecting device (4) further includes a gasket (46) installed on the connecting groove (43) and slidably connected to the fine-rolled threaded steel (44). Each set of the support beams (45) is equipped with two sets of gaskets (46) slidably connected to the fine-rolled threaded steel (44), and each set of gaskets (46) is equipped with a fastening bolt (47) threadedly connected to the fine-rolled threaded steel (44).

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