A gantry crane main beam inner truss structure and a gantry crane main beam

Abstract

The utility model relates to a kind of gantry crane main beam inner truss structure and gantry crane main beam, comprising: support outer frame and truss unit, the support outer frame includes roof beam and a pair of side beams, a pair of the side beams symmetrically set in the both ends of the roof beam;The truss unit includes first tripod and at least one second tripod, one apex angle of the first tripod is connected with the roof beam, and the other two apex angles of the first tripod are connected with the side beam respectively;The apex angle of the second tripod is connected with the side of the first tripod away from roof beam, and the other two apex angles of the second tripod are connected with the side beam respectively.In the utility model, the inner truss of gantry crane main beam is modularized design, improves the installation speed and production efficiency of gantry crane.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, and in particular to an internal truss structure for a gantry crane main beam and a gantry crane main beam. Background Technology

[0002] When building large container ships, tankers, bulk carriers, and other vessels, it is necessary to lift sections of the hull, weighing hundreds of tons, from the manufacturing site to the slipway for assembly. With the continuous development of the shipbuilding industry, the trend towards larger ships is becoming increasingly apparent, placing higher and higher demands on the lifting capacity, span, and operating range of gantry cranes.

[0003] In the existing technology, the main beam structure of gantry cranes with a lifting capacity of 1200 tons is large, the truss is heavy and the structure is complex, making welding difficult. Secondly, most of the trusses inside the main beam are single structures, and during the welding process, individual support rods need to be welded one by one. The welding process requires constant adjustment and calibration, resulting in low welding efficiency and greatly prolonging the installation speed of the gantry crane. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defects of high welding difficulty and low welding efficiency of the inner truss of the main beam of the gantry crane in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides an internal truss structure for the main beam of a gantry crane, comprising:

[0006] A supporting frame is provided, which includes a top beam and a pair of side beams, the pair of side beams being symmetrically arranged at both ends of the top beam;

[0007] A truss unit includes a first tripod and at least one second tripod. One apex of the first tripod is connected to the top beam, and the other two apexes of the first tripod are respectively connected to the side beams. One apex of the second tripod is connected to the side of the first tripod away from the top beam, and the other two apexes of the second tripod are respectively connected to the side beams.

[0008] In one embodiment of this utility model, a first connecting plate is provided between the first tripod and the top beam, a second connecting plate is provided between the side beams of the first tripod, and a third connecting plate is provided between the second tripod and the side beams.

[0009] In one embodiment of this utility model, the first tripod is provided with a first slot that mates with the first connecting plate, and the first connecting plate is inserted into the first slot.

[0010] In one embodiment of this utility model, the first tripod is provided with a second slot that mates with the second connecting plate, and the second connecting plate is inserted into the second slot.

[0011] In one embodiment of the present invention, the third connecting plate is provided with a third slot that mates with the third connecting plate, and the third connecting plate is inserted into the third slot.

[0012] In one embodiment of this utility model, the side beam is inclined to the top beam, and the second connecting plate and the third connecting plate are both closely attached to the side beam.

[0013] In one embodiment of this utility model, a corner plate is provided between the second tripod and the first tripod.

[0014] In one embodiment of this utility model, the first tripod and the second tripod are in the same plane.

[0015] A gantry crane main beam includes an internal truss structure, a main beam box body, and support beams. Multiple sets of support frames are arranged along the length axis inside the main beam box body, and the support beams are located at the bottom of the main beam box body.

[0016] In one embodiment of this utility model, the main beam box body is provided with multiple reinforcing ribs.

[0017] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0018] This utility model discloses an internal truss structure for a gantry crane main beam and the gantry crane main beam itself. The internal truss of the gantry crane main beam adopts a modular design, eliminating the need for complex adjustments and calibrations, thus improving the installation speed of the gantry crane. Secondly, the internal truss structure is simple and the manufacturing process is straightforward, improving production efficiency. Furthermore, the internal truss of the main beam employs a triangular frame structure design, resulting in a more uniform stress distribution within the main beam. This symmetry helps improve the overall stability of the gantry crane and reduces the risk of deformation and torsion. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 for Figure 1 Schematic diagram of the middle truss unit;

[0023] Figure 4 for Figure 2 Side view of the structure of the first tripod in the middle;

[0024] Figure 5 for Figure 2 Side view of the structure of the second tripod;

[0025] Explanation of reference numerals in the accompanying drawings: 1. Support frame; 2. Truss unit; 3. Main beam box; 4. Support beam; 11. Top beam; 12. Side beam; 21. First triangular frame; 22. Second triangular frame; 23. First connecting plate; 24. Second connecting plate; 25. Third connecting plate; 26. Corner plate; 31. Reinforcing rib; 211. First slot; 212. Second slot; 221. Third slot. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0027] Reference Figures 1-5 As shown, this utility model discloses an internal truss structure for the main beam of a gantry crane, comprising:

[0028] The supporting outer frame 1 includes a top beam 11 and a pair of side beams 12, with the pair of side beams 12 symmetrically arranged at both ends of the top beam 11;

[0029] Truss unit 2 includes a first tripod 21 and at least one second tripod 22. One apex of the first tripod 21 is connected to the top beam 11, and the other two apexes of the first tripod 21 are respectively connected to the side beam 12. One apex of the second tripod 22 is connected to the side of the first tripod 21 away from the top beam 11, and the other two apexes of the second tripod 22 are respectively connected to the side beam 12.

[0030] In this invention, the supporting outer frame 1 is used to install the truss unit 2. The entire supporting outer frame 1 has a portal frame structure, and the truss unit 2 is installed inside the supporting outer frame 1. The truss unit 2 structure in this invention includes a first tripod 21 and at least one second tripod 22. The first tripod 21 and the second tripod 22 are arranged along the height direction of the supporting outer frame 1. The first tripod 21 is installed near the top beam 11, with one apex of the first tripod 21 connected to the top beam 11 and the other two apexes connected to the two side beams 12 respectively. The second tripod 22 is located on the side of the first tripod 21 away from the top beam 11. Similarly, one apex of the second tripod 22 is connected to the first tripod 21, and the other two apexes are connected to the two side beams 12. In actual assembly, the number of second tripods 22 can be increased according to the height of the supporting outer frame 1, and they can be reasonably arranged and installed sequentially along the height direction of the supporting outer frame 1.

[0031] In this invention, the truss unit 2 is a single integrated structure. During assembly, the entire truss unit 2 is first welded together, and then spliced ​​and installed with the supporting outer frame 1. This allows for quick and accurate connection of the inner truss struts without complex adjustments or calibrations, significantly accelerating the installation speed of the gantry crane and reducing installation time and labor costs. Secondly, the truss unit 2 has a simple structure. The triangular frame structure uses less material and offers good structural stability. Furthermore, the triangular frame is relatively easy to manufacture, simplifying the manufacturing process and improving production efficiency while reducing manufacturing costs. In addition, the triangular frame design ensures a more uniform stress distribution within the main beam of the gantry crane. This symmetry helps improve the overall stability of the gantry crane, reducing the risk of deformation and torsion, especially when lifting heavy objects, ensuring smooth operation of the gantry crane.

[0032] In this invention, the inner truss of the gantry crane's main beam adopts a modular design, eliminating the need for complex adjustments and calibrations, thus improving the installation speed of the gantry crane. Secondly, the inner truss of the main beam has a simple structure and manufacturing process, improving production efficiency. Furthermore, the inner truss of the main beam uses a triangular frame structure design, resulting in a more uniform stress distribution within the main beam. This symmetry helps improve the overall stability of the gantry crane and reduces the risk of deformation and torsion.

[0033] Furthermore, a first connecting plate 23 is provided between the first tripod 21 and the top beam 11, a second connecting plate 24 is provided between the side beams 12 of the first tripod 21, and a third connecting plate 25 is provided between the second tripod 22 and the side beams 12.

[0034] Specifically, both the first tripod 21 and the second tripod 22 are welded from steel pipes. The first connecting plate 23, the second connecting plate 24, and the third connecting plate 25 facilitate the welding of the first tripod 21 and the second tripod 22, increase the welding contact area, and ensure the stability of the connection between the first tripod 21 and the second tripod 22. Furthermore, the plate-like structure of the first connecting plate 23, the second connecting plate 24, and the third connecting plate 25 also facilitates welding with the top beam 11 and the side beam 12, improving the connection strength between the truss unit 2 and the supporting outer frame 1, and ensuring the stability of the entire gantry crane.

[0035] Furthermore, the first tripod 21 has a first slot 211 that mates with the first connecting plate 23, and the first connecting plate 23 is inserted into the first slot 211. The first tripod 21 has a second slot 212 that mates with the second connecting plate 24, and the second connecting plate 24 is inserted into the second slot 212. The third connecting plate 25 has a third slot 221 that mates with the third connecting plate 25, and the third connecting plate 25 is inserted into the third slot 221.

[0036] Specifically, during the welding process of the first tripod 21, the first connecting plate 23 needs to be inserted into the first slot 211, and the second connecting plate 24 needs to be inserted into the second slot 212. Then, the first connecting plate 23 and the first slot 211 are fully welded together, and the second slot 212 and the second connecting plate 24 are fully welded together to complete the fixation of the first tripod 21. Similarly, the second tripod 22 is fixed by fully welding the third connecting plate 25 to the third slot 221.

[0037] Furthermore, a corner plate 26 is provided between the second tripod 22 and the first tripod 21.

[0038] Specifically, the first tripod 21 and the second tripod 22 are welded together using an angle plate 26. During the actual welding process, an angle plate 26 with a specific angle is selected, and two steel pipes of the second tripod 22 are welded together using the angle plate 26, thus limiting the angle of the second tripod 22. Finally, the remaining steel pipe is welded to the two welded steel pipes using a third connecting plate 25. As a preferred embodiment of this invention, the first tripod 21 has a connecting port. During the welding process, a notch is made in the steel pipe of the second tripod 22 to mate with the connecting port, ensuring a complete fit between the connecting port and the notch. Welding is then performed at the fit, further improving the stability of the connection between the first tripod 21 and the second tripod 22.

[0039] Furthermore, the side beam 12 is inclined to the top beam 11, and the second connecting plate 24 and the third connecting plate 25 are both closely attached to the side beam 12.

[0040] Specifically, during the welding process, the tilt angles of the second connecting plate 24 and the third connecting plate 25 are made consistent with the tilt angle of the side beam 12, so that the second connecting plate 24 and the third connecting plate 25 can be completely fitted with the side beam 12.

[0041] Furthermore, the first tripod 21 and the second tripod 22 are in the same plane. The entire truss unit 2 forms a tree-like structure, with multiple tripods in the same plane, ensuring the stability of the subsequent welded structure.

[0042] A gantry crane main beam includes the gantry crane main beam internal truss structure described above, and also includes a main beam box body 3 and a support beam 4. The main beam box body 3 has multiple sets of support outer frames 1 arranged along its length axis inside, and the support beam 4 is arranged at the bottom of the main beam box body 3.

[0043] Specifically, the entire main beam is a box structure. During the actual assembly process, multiple supporting outer frames 1 are set inside the main beam box 3 at certain intervals along the length of the main beam box 3 to provide support for the interior of the main beam box 3.

[0044] Furthermore, the main beam box 3 is provided with multiple reinforcing ribs 31 inside. The reinforcing ribs 31 are closely attached to the inner wall of the main beam box 3 to improve the strength of the entire gantry crane main beam and meet the lifting capacity of the gantry crane main beam.

[0045] In summary, this utility model introduces an internal truss structure for the main beam of a gantry crane and the gantry crane main beam itself. The internal truss of the gantry crane main beam in this utility model adopts a modular design, eliminating the need for complex adjustments and calibrations, thus improving the installation speed of the gantry crane. Secondly, the internal truss structure of the main beam is simple, and the manufacturing process is straightforward, improving production efficiency. Furthermore, the internal truss of the main beam adopts a triangular frame structure design, resulting in a more uniform stress distribution within the main beam. This symmetry helps improve the overall stability of the gantry crane and reduces the risk of deformation and torsion.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A truss structure for the main beam of a gantry crane, characterized in that, include: A supporting frame is provided, which includes a top beam and a pair of side beams, the pair of side beams being symmetrically arranged at both ends of the top beam; A truss unit includes a first tripod and at least one second tripod. One apex of the first tripod is connected to the top beam, and the other two apexes of the first tripod are respectively connected to the side beams. One apex of the second tripod is connected to the side of the first tripod away from the top beam, and the other two apexes of the second tripod are respectively connected to the side beams.

2. The gantry crane main beam internal truss structure according to claim 1, characterized in that: A first connecting plate is provided between the first tripod and the top beam, a second connecting plate is provided between each of the side beams of the first tripod, and a third connecting plate is provided between the second tripod and the side beam.

3. The gantry crane main beam internal truss structure according to claim 2, characterized in that: The first tripod has a first slot that mates with the first connecting plate, and the first connecting plate is inserted into the first slot.

4. The gantry crane main beam internal truss structure according to claim 2, characterized in that: The first tripod has a second slot that mates with the second connecting plate, and the second connecting plate is inserted into the second slot.

5. The gantry crane main beam internal truss structure according to claim 2, characterized in that: The third connecting plate has a third slot that mates with it, and the third connecting plate is inserted into the third slot.

6. The gantry crane main beam internal truss structure according to claim 2, characterized in that: The side beam is inclined to the top beam, and the second connecting plate and the third connecting plate are both set close to the side beam.

7. The gantry crane main beam internal truss structure according to claim 1, characterized in that: An angle plate is provided between the second tripod and the first tripod.

8. The gantry crane main beam internal truss structure according to claim 1, characterized in that: The first tripod and the second tripod are in the same plane.

9. A gantry crane main beam, comprising an internal truss structure as described in any one of claims 1-8, characterized in that, It also includes a main beam box and a support beam. The main beam box has multiple sets of support frames arranged along its length axis inside, and the support beam is located at the bottom of the main beam box.

10. The gantry crane main beam according to claim 9, characterized in that: The main beam box body is equipped with multiple reinforcing ribs.

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