A device for installing and replacing rails at the bottom of a steel box girder

Abstract

The present invention discloses a device for installing and replacing tracks at the bottom of a steel box girder, comprising a rectangular frame, wherein two gantries are fixedly mounted on the rectangular frame, wherein the gantries are provided with a driving mechanism for moving on the track; a track auxiliary mechanism used in conjunction with the device, wherein the track auxiliary mechanism is used to connect two adjacent tracks; and a plurality of longitudinal and transverse sliding mechanisms are also provided on the rectangular frame. The gantries include a base frame, wherein upwardly extending vertical frames are fixedly mounted at both ends of the base frame, a main crossbeam is fixedly mounted between the upper ends of the two vertical frames, and the driving mechanism is arranged on the main crossbeam. The driving mechanism includes two oppositely arranged sliding vertical plates, wherein a sliding cross plate is fixedly mounted on the upper sides of the two sliding vertical plates, wherein bolts and nuts are arranged between the two sliding vertical plates, and a roller is mounted in the middle of the bolt, wherein the outer wall of the roller abuts against the lower side of the main crossbeam. The present invention has the advantage of quickly and safely replacing damaged tracks.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction equipment, in particular to a device for installing and replacing tracks at the bottom of a steel box beam. Background Art

[0002] A beam bottom inspection vehicle is installed at the bottom of the bridge. When the track system of the inspection vehicle is damaged, it cannot be quickly replaced. Since the bottom of the box beam is high above the ground and there is no corresponding support point at the bottom, the track replacement operation is difficult and has high safety risks. There is no better way to replace the existing track. Large equipment is required to complete the operation, resulting in huge construction costs, low construction efficiency and inability to ensure personnel safety. The main problems are as follows:

[0003] 1. The traditional method of replacing damaged tracks with bottom beam inspection vehicles is generally to use large lifting equipment for construction work in places where there is land available for general small bridges. There is no precedent for replacing damaged tracks at sea or on large rivers. This will greatly increase construction costs. In addition, large lifting equipment is limited by the construction environment, resulting in some damaged tracks being unable to be replaced.

[0004] 2. Construction workers need to use lifting equipment to replace the track and reach the bottom of the steel box girder for replacement work. It is extremely inconvenient for personnel to go up and down, and it is time-consuming and labor-intensive. When the mudflats and land at the bottom of the beam are available, the damaged track cannot be replaced, which reduces work efficiency and cannot guarantee the safety of the construction workers themselves. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a device for installing and replacing rails at the bottom of a steel box girder, which can quickly, efficiently and safely replace rails to solve the above problems.

[0006] The object of the present invention is achieved through the following technical solutions:

[0007] A device for installing and replacing rails at the bottom of a steel box girder, comprising:

[0008] A rectangular frame is provided with two gantries fixed thereon, and a driving mechanism is provided on the gantries for moving on the track; a track auxiliary mechanism used in conjunction with the device is also provided, and the track auxiliary mechanism is used to connect two adjacent tracks; the rectangular frame is also provided with a plurality of longitudinal and transverse sliding mechanisms.

[0009] Furthermore, the gantry includes a base frame, and vertical frames extending upward are fixed at both ends of the base frame. A main beam is fixed between the upper ends of the two vertical frames, and the driving mechanism is arranged on the main beam.

[0010] Furthermore, the driving mechanism includes two relatively arranged sliding vertical plates, a sliding horizontal plate is fixed on the upper sides of the two sliding vertical plates, bolts and nuts are provided between the two sliding vertical plates, a roller is sleeved on the middle part of the bolt, and the outer wall of the roller is in contact with the lower side surface of the main beam; the sliding horizontal plate is rotatably connected to a rotating plate, two relatively arranged side plates are fixed on the rotating plate, and a sliding assembly is fixed on the side plates.

[0011] Furthermore, the sliding assembly includes a mounting plate fixed to the outer side of the side plate by bolts, two rotating shafts are installed on the mounting plate, and a limiting circular plate and a roller are fixed on the inner side of the rotating shaft, and the roller is adapted to the main beam.

[0012] Furthermore, the track auxiliary mechanism includes a first fixing component and a second fixing component, a connecting component is connected between the first fixing component and the second fixing component, the first fixing component includes a fixing frame fixed to the track by bolts, the second fixing component includes a seat frame placed on another track, the connecting component includes two symmetrically arranged connecting frames, one end of the connecting frame is fixed to the seat frame by bolts and nuts, and the other end of the connecting frame is clamped on the fixing frame; the two sides of the seat frame are also fixed with limiting plates by bolts, and a rectangular groove is provided on the inner side of the limiting plate.

[0013] Furthermore, the longitudinal and transverse sliding mechanism includes several groups of slides fixed on a rectangular frame, a sliding rod is fixed between the upper sides of two of the slides, a sliding seat is slidably arranged on the sliding rod, a first pulley is installed in the slide, and a second pulley is installed in the sliding seat.

[0014] Furthermore, a connecting ear plate is fixed to the outer side of the main crossbeam, and the outer side of the connecting ear plate is hingedly connected to a driving connecting frame; two transverse limit plates are also fixed to the lower side of the main crossbeam.

[0015] Furthermore, there is a gap between the sliding horizontal plate and the rotating plate, and a connecting pin is provided through the middle of the sliding horizontal plate and the rotating plate. The head end of the connecting pin is in contact with the upper surface of the main beam. A fastening plate is also fixed on the rotating plate by bolts, and the upper end of the connecting pin passes through the fastening plate.

[0016] Furthermore, the rotating plate has outwardly protruding extension plates on opposite sides, and fastening screws are screwed on the extension plates; a rectangular plate is also fixed on the outer side of the sliding vertical plate, and an anti-fall plate is fixed on the rectangular plate by bolts, and the upper end of the anti-fall plate is hung on the track.

[0017] Furthermore, support rods are fixed at both ends of the upper side of the main beam.

[0018] Beneficial effects of the present invention:

[0019] The present invention proposes a device for installing and replacing rails at the bottom of a steel box beam, which can quickly and conveniently replace damaged rails. First, the device is installed on the inspection vehicle track. After the installation and debugging are correct, the tool is pushed to the damaged track using the beam bottom inspection vehicle or self-powered operation to replace the damaged track. The device adopts an enclosed structure to ensure the personal safety of personnel during the operation. The device can have its own power supply facilities to ensure electricity during the construction process. The device adopts dual safety braking measures, the parking hand brake wheel locks the mechanical fixed safety brake of the track, and the secondary anti-falling facility ensures the safety of the tool operation. External connectors are reserved for selecting various power supply modes such as AC power, generator, and battery according to the environment; the driving mechanism of the device adopts a rotatable and left-right sliding method to meet the operation under multiple working conditions of the damaged track of the beam bottom inspection vehicle; the track auxiliary mechanism in the device provides safety guarantees when replacing damaged tracks, and reduces the labor intensity of manually lifting the track through the vertical and horizontal sliding mechanisms; the device is equipped with a safety lock and a temporary stop brake device, and a safety guardrail is provided around the tooling, which can achieve 360° safety protection for the installers and prevent the risk of falling objects from high altitude during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 yes Figure 1 A magnified view of point A in the figure;

[0022] Figure 3 yes Figure 1 Enlarged view of point B in . DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In this embodiment, Figures 1 to 3As shown, a device for installing and replacing tracks at the bottom of a steel box girder includes a rectangular frame 1, on which two gantries are fixed. The gantries are provided with a driving mechanism for moving on the track; it also includes a track auxiliary mechanism used in conjunction with the device, and the track auxiliary mechanism is used to connect two adjacent tracks; the rectangular frame 1 is also provided with a plurality of longitudinal and transverse sliding mechanisms.

[0025] This embodiment is further configured as follows: the gantry includes a base frame 2 , vertical frames 3 extending upward are fixed at both ends of the base frame 2 , a main beam 4 is fixed between the upper ends of the two vertical frames 3 , and the driving mechanism is arranged on the main beam 4 .

[0026] In this embodiment, the base frame 2 and the vertical frame 3 are formed by fixing a plurality of I-shaped steels, and the main crossbeam 4 is also an I-shaped steel structure, which includes a first bottom plate, a first vertical plate and a first top plate.

[0027] This embodiment is further configured as follows: the driving mechanism includes two relatively arranged sliding vertical plates 5, a sliding horizontal plate 6 is fixed on the upper side of the two sliding vertical plates 5, a bolt and a nut are provided between the two sliding vertical plates 5, a roller 7 is sleeved on the middle part of the bolt, and the outer wall of the roller 7 is in contact with the lower side surface of the main beam 4; a rotating plate 8 is rotatably connected to the sliding horizontal plate 6, and two relatively arranged side plates 9 are fixed on the rotating plate 8, and a sliding component is fixed on the side plate 9.

[0028] In this embodiment, a rectangular channel is formed between the roller 7 , the sliding vertical plate 5 and the sliding horizontal plate 6 , and the main crossbeam 4 passes through the rectangular channel; the roller 7 abuts against the bottom of the first bottom plate.

[0029] This embodiment is further configured as follows: the sliding assembly includes a mounting plate 10 fixed to the outside of the side plate 9 by bolts, two rotating shafts 11 are installed on the mounting plate 10, and a limiting circular plate 12 and a roller 13 are fixed on the inner side of the rotating shaft 11, and the roller 13 is adapted to the main beam 4.

[0030] In this embodiment, the diameter of the circular plate 12 is larger than the diameter of the roller 13 , the roller 13 abuts against the upper side of the first bottom plate, and the inner side surface of the circular plate 12 is adapted to the outer side wall of the first bottom plate.

[0031] This embodiment is further configured as follows: the track auxiliary mechanism includes a first fixing component and a second fixing component, a connecting component is connected between the first fixing component and the second fixing component, the first fixing component includes a fixing frame 14 fixed to the track by bolts, the second fixing component includes a seat frame 15 placed on another track, the connecting component includes two symmetrically arranged connecting frames 16, one end of the connecting frame 16 is fixed to the seat frame 15 by bolts and nuts, and the other end of the connecting frame 16 is clamped on the fixing frame 14; both sides of the seat frame 15 are also fixed with a limiting plate 17 by bolts, and a rectangular groove is provided on the inner side of the limiting plate 17.

[0032] In this embodiment, the fixing frame 14 includes a first base plate and a cross fixed on the first base plate. There is a gap between the two connecting frames 16. The connecting frame 16 includes a long plate and a stretching plate fixed on the outside of the long plate. A slot is provided on the inner side of the stretching plate. The slot, the gap and the cross are engaged and fixed by bolts; the long plate is fixed to both sides of the seat frame 15 by bolts; the edge of the first bottom plate is located in the rectangular groove.

[0033] The two adjacent tracks are fixed by the track auxiliary mechanism, and then the technicians remove the damaged track so that there is no risk of the damaged track falling during removal, making it easy to remove the damaged track and replace the track at the corresponding position.

[0034] This embodiment is further configured as follows: the longitudinal and transverse sliding mechanism includes several groups of slides 18 fixed on the rectangular frame 1, a sliding rod 19 is fixed between the upper sides of two of the slides 18, a sliding seat 20 is slidably arranged on the sliding rod 19, a first pulley is installed in the slide 18, and a second pulley is installed in the sliding seat 20.

[0035] In this embodiment, the slide seat 18 is mounted on the rectangular frame 1, and the sliding seat 20 is mounted on the sliding rod 19. The damaged rails and rails that need to be replaced are placed and fixed by the sliding seat 20, thereby reducing the work intensity of the staff.

[0036] This embodiment is further configured as follows: a connecting ear plate 23 is fixed to the outer side of the main crossbeam 4 , and a driving connecting frame 24 is hingedly connected to the outer side of the connecting ear plate 23 ; and two transverse limiting plates 25 are also fixed to the lower side of the main crossbeam 4 .

[0037] In this embodiment, the driving connection frame 24 is used to connect to an external driving power source; the transverse limiting plate 25 is used to limit the left and right positions of the driving mechanism.

[0038] This embodiment is further configured as follows: there is a gap between the sliding transverse plate 6 and the rotating plate 8, a connecting pin 26 is provided through the middle of the sliding transverse plate 6 and the rotating plate 8, the head end of the connecting pin 26 abuts against the upper surface of the main beam 4, and a fastening plate 27 is also fixed to the rotating plate 8 by bolts, and the upper end of the connecting pin 26 passes through the fastening plate 27.

[0039] This embodiment is further configured as follows: the opposite sides of the rotating plate 8 are provided with outwardly protruding extension plates, and the extension plates are screwed with fastening screws 28; a rectangular plate 29 is also fixed to the outer side of the sliding vertical plate 5, and an anti-fall plate 30 is fixed to the rectangular plate 29 by bolts, and the upper end of the anti-fall plate 30 is hung on the track.

[0040] In this embodiment, the anti-fall plate 30 and the fastening screw 28 are removed so that the device can be rotated, and then fixed after rotation, so that some obstacles can be avoided and the monorail can be rotated over the pier.

[0041] This embodiment is further configured as follows: support rods 31 are fixed to both ends of the upper side of the main crossbeam 4 .

[0042] Since this device has a heavy load capacity, in order to reduce the weight of the tooling itself and ensure the safety of the force, the entire structure is made of aluminum alloy material, and the bolted parts are connected with high-strength bolts; the working principle is mainly to install the truss assembly of the device on the track of the bottom inspection vehicle of the steel box girder, and push the tooling to move through the bottom inspection vehicle (with its own drive system).

[0043] The method for replacing the damaged track of the steel box girder at the bottom of the beam is as follows: the passive drive system of the tooling (the electric drive system needs to be installed when no inspection vehicle is available) is installed on the inspection vehicle track and fixed. After the gantry is assembled, the external hand hoist is used to lift the component and connect it to the drive system. After the device is assembled and installed, it is connected to the inspection vehicle using the reserved interface. After the installation and debugging are correct, the construction materials and machinery are placed in the rectangular frame 1. The construction personnel operate the inspection vehicle to push the device to start the replacement of the damaged track.

[0044] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "left," "right," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

Claims

1. A device for installing and replacing rails at the bottom of a steel box girder, characterized in that: include: A rectangular frame (1), wherein the rectangular frame (1) is sleeved and fixed with two gantries, wherein the gantries are provided with a driving mechanism, wherein the driving mechanism is used to move on a track; and further comprising a track auxiliary mechanism used in conjunction with the device, wherein the track auxiliary mechanism is used to connect two adjacent tracks; and the rectangular frame (1) is also provided with a plurality of longitudinal and transverse sliding mechanisms; The gantry comprises a base frame (2), vertical frames (3) extending upward are fixed at both ends of the base frame (2), a main crossbeam (4) is fixed between the upper ends of the two vertical frames (3), and the driving mechanism is arranged on the main crossbeam (4); The driving mechanism comprises two sliding vertical plates (5) arranged opposite to each other, a sliding horizontal plate (6) being fixed on the upper sides of the two sliding vertical plates (5), a bolt and a nut being arranged between the two sliding vertical plates (5), a roller (7) being sleeved on the middle part of the bolt, and the outer wall of the roller (7) being in contact with the lower side surface of the main crossbeam (4); a rotating plate (8) being rotatably connected to the sliding horizontal plate (6), two side plates (9) being fixed on the rotating plate (8), and a sliding assembly being fixed on the side plates (9); The sliding assembly comprises a mounting plate (10) fixed to the outside of the side plate (9) by bolts, two rotating shafts (11) are mounted on the mounting plate (10), a limiting circular plate (12) and a roller (13) are fixed on the inside of the rotating shaft (11), and the roller (13) is adapted to the main beam (4); The track auxiliary mechanism comprises a first fixing component and a second fixing component, wherein a connecting component is connected between the first fixing component and the second fixing component, wherein the first fixing component comprises a fixing frame (14) fixed to the track by bolts, and the second fixing component comprises a seat frame (15) placed on another track, and the connecting component comprises two symmetrically arranged connecting frames (16), one end of the connecting frame (16) is fixed to the seat frame (15) by bolts and nuts, and the other end of the connecting frame (16) is clamped on the fixing frame (14); both sides of the seat frame (15) are also fixed with limiting plates (17) by bolts, and a rectangular groove is provided on the inner side of the limiting plate (17).

2. The device for installing and replacing rails at the bottom of a steel box girder according to claim 1, characterized in that: The longitudinal and transverse sliding mechanism comprises a plurality of slides (18) fixed on a rectangular frame (1), a sliding rod (19) being fixed between the upper sides of two of the slides (18), a sliding seat (20) being slidably arranged on the sliding rod (19), a first pulley being installed in the slide (18), and a second pulley being installed in the sliding seat (20).

3. The device for installing and replacing rails at the bottom of a steel box girder according to claim 1, characterized in that: A connecting lug plate (23) is fixed to the outer side of the main crossbeam (4), and a driving connecting frame (24) is hingedly connected to the outer side of the connecting lug plate (23); two transverse limiting plates (25) are also fixed to the lower side of the main crossbeam (4).

4. The device for installing and replacing rails at the bottom of a steel box girder according to claim 1, characterized in that: There is a gap between the sliding transverse plate (6) and the rotating plate (8), and a connecting pin (26) is provided through the middle of the sliding transverse plate (6) and the rotating plate (8), and the head end of the connecting pin (26) abuts against the upper surface of the main beam (4). A fastening plate (27) is also fixed to the rotating plate (8) by bolts, and the upper end of the connecting pin (26) passes through the fastening plate (27).

5. The device for installing and replacing rails at the bottom of a steel box girder according to claim 1, characterized in that: The rotating plate (8) has outwardly protruding extension plates on opposite sides, and a fastening screw (28) is screwed onto the extension plate; a rectangular plate (29) is also fixed to the outside of the sliding vertical plate (5), and an anti-falling plate (30) is fixed to the rectangular plate (29) by bolts, and the upper end of the anti-falling plate (30) is hung on the track.

6. The device for installing and replacing rails at the bottom of a steel box girder according to claim 1, characterized in that: Support rods (31) are fixed to both ends of the upper side of the main crossbeam (4).

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