Combined double-track gantry crane

Abstract

The utility model discloses a combined type double-track gantry crane, and relates to the field of large prefabricated part yards in highway engineering, in particular to the combined type double-track gantry crane which comprises a plurality of pressing plates, bolts are embedded in the upper surfaces of the pressing plates, positioning plates are fixedly installed on the pressing plates through the bolts, one side of each positioning plate is fixedly connected with a track, and the other side of each positioning plate is fixedly connected with the corresponding track. Four walking mechanisms A are embedded in the upper surfaces of the two outer side rails, and four walking mechanisms B are embedded in the upper surfaces of the two outer side rails. According to the scheme, double rails and double cranes are adopted, the large gantry crane and the small gantry crane do not influence each other in walking operation, the situation that collision and even derailing occur when the gantry cranes are poor in operation during construction is reduced, meanwhile, multiple procedures such as reinforcing steel bar binding, formwork mounting and dismounting, concrete pouring, beam moving storage and hanging beam transportation can be connected in series, and the use efficiency of the gantry cranes is improved; and the hoisting and transferring time of the template is shortened, and the influence of hoisting cross operation of a conventional gantry crane in a beam yard is fundamentally solved.

Description

Technical Field

[0001] The utility model relates to the technical field of large-scale prefabricated component sites in highway engineering, in particular to a combined double-track gantry crane. Background Art

[0002] With the rapid growth of transportation development, the demand for highway network construction has also increased. The construction design of prestressed concrete beam bridges is more common in plateau mountainous areas. Prestressed concrete precast beams have the advantages of simple structure, clear force, material saving, easy erection and installation, and large spanning capacity. At the same time, precast beams can also save construction time. The planning and construction of precast beam prefabrication sites have become a crucial factor in ensuring the progress of the construction period.

[0003] In highway construction, the planning and construction of prefabricated beam yards have become a decisive factor in ensuring the project schedule. Traditional beam prefabrication yards are only equipped with one set of rail gantry cranes for lifting. There are cross-waiting sites between the processes of lifting semi-finished steel bars, installing and removing formwork, and moving beams, which seriously affects the construction efficiency. At the same time, there are also safety risks such as gantry crane collision and derailment. Utility Model Content

[0004] The purpose of the utility model is to provide a combined double-track gantry crane. By arranging a pressure plate, a track, an A traveling mechanism and a B traveling mechanism, the utility model solves the problem that the traditional beam prefabrication yard is only equipped with one set of tracks, and there are cross-waiting sites between the processes of lifting semi-finished steel bars, installing and removing formwork, and moving beams, which seriously affects the construction efficiency. At the same time, there is also the safety risk of the gantry crane colliding and derailing.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a combined double-track gantry crane, including multiple pressure plates, the upper surfaces of the multiple pressure plates are embedded with bolts, the pressure plates are fixed with positioning plates by bolts, one side of the positioning plate is fixedly connected with a track, four A walking mechanisms are embedded on the upper surfaces of the two outer tracks, and four B walking mechanisms are embedded on the upper surfaces of the two outer tracks.

[0006] Preferably, the upper surfaces of two of the A walking mechanisms are rotatably connected to the A rigid legs, and the upper surfaces of the other two of the A walking mechanisms are rotatably connected to the A flexible legs.

[0007] Preferably, the upper surfaces of two of the B walking mechanisms are rotatably connected with B rigid legs, and the upper surfaces of the other two of the B walking mechanisms are rotatably connected with B flexible legs.

[0008] Preferably, an A gantry is fixedly mounted on the top ends of the A rigid legs and the A flexible legs, and an A lifting mechanism is embedded on the upper surface of the A gantry.

[0009] Preferably, a B gantry is fixedly mounted on the top ends of the B rigid legs and the B flexible legs, and a B lifting mechanism is embedded on the lower surface of the B gantry.

[0010] Preferably, a track clamp is fixedly installed on one end of the two A walking mechanisms and the two B walking mechanisms, an infrared anti-collision device is fixedly installed on one side of the track clamp, and a safety alarm is fixedly installed on the bottom of one side of the A rigid support leg and the B rigid support leg.

[0011] Preferably, threaded holes are provided at both ends of both sides of the track, and fastening bolts for fixing the fishplate are passed through the internal threads of the threaded holes.

[0012] The utility model provides a combined double-track gantry crane, which has the following beneficial effects:

[0013] This solution adopts double tracks and double cranes, and the large and small gantry cranes do not affect each other in their travel operations, reducing the possibility of collision or even derailment of the gantry cranes due to poor operation during construction. At the same time, multiple processes such as steel bar binding, installation and removal of formwork, concrete pouring, beam shifting and storage, and beam transportation can be connected in series, thereby improving the efficiency of gantry crane use and shortening the time for formwork lifting and transfer. It fundamentally solves the impact of cross-operation of gantry cranes in conventional beam yards, which causes idle machinery and idle personnel, and greatly improves on-site operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structural disassembly of the track of the utility model;

[0017] Figure 3 This is a schematic diagram of the structural disassembly of the rigid support leg A of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure front of the utility model.

[0019] Indicated in the figure:

[0020] 1. Pressing plate; 2. Bolts; 3. Positioning plate; 4. Track; 5. A walking mechanism; 6. B walking mechanism; 7. A rigid outrigger; 8. A flexible outrigger; 9. B rigid outrigger; 10. B flexible outrigger; 11. A gantry; 12. A lifting mechanism; 13. B gantry; 14. B lifting mechanism; 15. Track clamp; 16. Infrared anti-collision device; 17. Safety alarm; 18. Fishplate. DETAILED DESCRIPTION

[0021] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a combined double-track gantry crane, including multiple pressure plates 1, and bolts 2 are embedded on the upper surfaces of the multiple pressure plates 1. The pressure plates 1 are fixedly installed with positioning plates 3 through the bolts 2. One side of the positioning plate 3 is fixedly connected with a track 4. Four A walking mechanisms 5 are embedded on the upper surfaces of the two outer tracks 4, and four B walking mechanisms 6 are embedded on the upper surfaces of the two outer tracks 4. The pressure plates 1 are laid in a T-beam prefabrication plant, and a large gantry crane is supported and installed through the two outer tracks 4, and a small gantry crane is supported and installed through the two inner tracks 4. The large gantry crane adopts a 90t gantry crane, and the small gantry crane adopts a 10t gantry crane. The arrangement method is that a 90t gantry crane can cross a 10t gantry crane. The center spacing of the 10t gantry crane is 30 meters, and the center spacing of the 90t gantry crane is 35 meters. In addition, multiple 10t gantry cranes and 90t gantry cranes can be equipped on the track 4 to perform synchronous cross operations to improve work efficiency.

[0024] Two of the A walking mechanisms 5 are rotatably connected to the upper surfaces with A rigid legs 7, and the other two of the A walking mechanisms 5 are rotatably connected to the upper surfaces with A flexible legs 8. Two of the B walking mechanisms 6 are rotatably connected to the upper surfaces with B rigid legs 9, and the other two of the B walking mechanisms 6 are rotatably connected to the upper surfaces with B flexible legs 10. Ladders are welded to the A rigid legs 7 and the B rigid legs 9 to facilitate subsequent maintenance and repair by personnel.

[0025] An A gantry 11 is fixedly installed on the top of the A rigid leg 7 and the A flexible leg 8, and an A lifting mechanism 12 is embedded in the upper surface of the A gantry 11. A B gantry 13 is fixedly installed on the top of the B rigid leg 9 and the B flexible leg 10, and a B lifting mechanism 14 is embedded in the lower surface of the B gantry 13.

[0026] One end of the two A walking mechanisms 5 and the two B walking mechanisms 6 is fixedly installed with a track clamp 15, one side of the track clamp 15 is fixedly installed with an infrared anti-collision device 16, and the bottom of one side of the A rigid support leg 7 and the B rigid support leg 9 is fixedly installed with a safety alarm 17. Usually, the track clamp 15 clamps the track 4 and fixes them together, so as to align the position when the equipment is stopped to avoid the gantry crane sliding and colliding with other gantry cranes or even derailing. The infrared anti-collision device 16 is used to monitor the distance between the devices. When it is too close, the safety alarm 17 is triggered to send out an audible and visual alarm to remind the staff.

[0027] Threaded holes are provided at both ends of both sides of the track 4 , and fastening bolts for fixing the fishplate 18 are passed through the internal threads of the threaded holes to connect and install multiple tracks 4 .

[0028] The electrical components appearing in this article are all electrically connected to an external main controller and 380V industrial electricity, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined double-track gantry crane, comprising a plurality of pressing plates (1), characterized in that: Bolts (2) are embedded in the upper surfaces of the plurality of pressure plates (1), and the pressure plates (1) are fixedly mounted with positioning plates (3) via the bolts (2). One side of the positioning plate (3) is fixedly connected with a track (4), and four A walking mechanisms (5) are embedded in the upper surfaces of the two outer tracks (4), and four B walking mechanisms (6) are embedded in the upper surfaces of the two outer tracks (4).

2. The combined double-track gantry crane according to claim 1, characterized in that: The upper surfaces of two of the A walking mechanisms (5) are rotatably connected to the A rigid legs (7), and the upper surfaces of the other two of the A walking mechanisms (5) are rotatably connected to the A flexible legs (8).

3. The combined double-track gantry crane according to claim 2, characterized in that: The upper surfaces of two of the B walking mechanisms (6) are rotatably connected to B rigid legs (9), and the upper surfaces of the other two of the B walking mechanisms (6) are rotatably connected to B flexible legs (10).

4. The combined double-track gantry crane according to claim 2, characterized in that: An A gantry (11) is fixedly mounted on the top ends of the A rigid supporting legs (7) and the A flexible supporting legs (8), and an A hoisting mechanism (12) is embedded on the upper surface of the A gantry (11).

5. The combined double-track gantry crane according to claim 3, characterized in that: A B gantry (13) is fixedly mounted on the top ends of the B rigid legs (9) and the B flexible legs (10), and a B hoisting mechanism (14) is embedded on the lower surface of the B gantry (13).

6. The combined double-track gantry crane according to claim 3, characterized in that: A track clamp (15) is fixedly installed at one end of the two A walking mechanisms (5) and the two B walking mechanisms (6), an infrared anti-collision device (16) is fixedly installed on one side of the track clamp (15), and a safety alarm (17) is fixedly installed at the bottom of one side of the A rigid support leg (7) and the B rigid support leg (9).

7. The combined double-track gantry crane according to claim 1, characterized in that: Threaded holes are provided at both ends of both sides of the track (4), and fastening bolts for fixing the fishplate (18) are passed through the internal threads of the threaded holes.

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