A creeping large-segment steel beam loading and transport platform

Abstract

The present invention discloses a creeping large-segment steel beam loading and transporting platform, and relates to the technical field of steel structure loading and transporting. The platform comprises: a platform, a plurality of groups of hydraulic cylinders are arranged at the lower part of the platform, each group of hydraulic cylinders comprises two first hydraulic cylinders, the two first hydraulic cylinders are rotatably connected to the platform, each group of first hydraulic cylinders is also rotatably connected to two support plates, the two support plates are arranged on both sides of each group of first hydraulic cylinders, the lower ends of the two support plates between the two first hydraulic cylinders are respectively rotatably connected to the two ends of the same connecting plate, the lower side of each connecting plate is rotatably connected to the crawler, the crawler is divided into a plurality of sections, and each two adjacent sections are rotatably connected; a second hydraulic cylinder is rotatably connected between two adjacent first hydraulic cylinders; and a plurality of hydraulic stations are also arranged on the platform 1. When encountering steps, the present invention can climb up the steps by controlling the extension and contraction of the hydraulic cylinder without causing the tilt of the cargo carried, and can effectively overcome the dynamic height difference between the ship and the shore, so that the steel beam can be transported onto the ship smoothly.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure ship loading and transportation, and more specifically, relates to a creeping large-segment steel beam ship loading and transportation platform. Background Art

[0002] With the development of infrastructure construction in China today, more and more long-span bridges are used in highways and urban roads. Steel box girder bridges have the advantages of high strength, light weight, high cross-section bending and torsional rigidity, and beautiful appearance. With the continuous improvement of bridge construction technology, the overall large-segment lifting method of steel box girders is increasingly used in large-span bridge installation projects. The large-segment lifting method is to complete the manufacture of the steel box girder in the factory, transport it to the bridge site by large transport ships or overall self-floating, and then lift the overall segment into place by large floating cranes or bridge deck cranes. It has the advantages of high safety, high construction quality, high construction efficiency, greatly shortened construction period, and reduced impact of harsh environmental conditions at the bridge site.

[0003] It is not difficult to see from the above projects that large-span bridges across rivers and seas are increasingly inclined to be constructed by integral hoisting, which puts forward higher technical requirements for the loading, transportation and anchoring positioning of the integral segments at the bridge site, and is an important prerequisite for completing the overall hoisting. Transferring the workload of bridge construction to the factory and standardizing and streamlining the construction of steel box girders are in line with the development concept of prefabricated buildings. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a creeping large-segment steel beam loading and transporting platform. When encountering steps, the platform can climb up the steps by controlling the extension and retraction of the hydraulic cylinder without causing the tilt of the cargo carried. The dynamic height difference between the ship and the shore can be effectively overcome, so that the steel beams can be transported onto the ship smoothly.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A creeping large-segment steel beam loading and transporting platform comprises:

[0007] A platform, on the surface of which steel beam segments are placed and supported, a plurality of groups of hydraulic cylinders are evenly arranged at the lower part of the platform along the length direction of the platform, each group of the hydraulic cylinders includes two first hydraulic cylinders, the tails of the two first hydraulic cylinders are symmetrically and rotatably connected to the two sides of the platform, the telescopic ends of each group of the first hydraulic cylinders are rotatably connected to the upper ends of two support plates, the two support plates are arranged on both sides of each group of the first hydraulic cylinders along the length direction of the platform, the lower ends of the two support plates between the two first hydraulic cylinders are respectively rotatably connected to the two ends of the same connecting plate, the bottom of each connecting plate is rotatably connected to a crawler, the crawler is divided into a plurality of sections, and every two adjacent sections are rotatably connected; a second hydraulic cylinder is rotatably connected between two adjacent first hydraulic cylinders on the same side of the platform; a plurality of hydraulic stations are also arranged on the platform 1.

[0008] Preferably, the support plates and the connection plates are both arc-shaped plates, the arc of each connection plate is arranged to face upward, and the arcs of the two support plates rotatably connected at both ends of each connection plate are arranged to face away from each other.

[0009] Preferably, the telescopic ends of each group of the first hydraulic cylinders are rotatably connected to one of the second rotating shafts, the upper end of the support plate is rotatably connected to the second rotating shaft, and both ends of the second hydraulic cylinders are rotatably connected to two adjacent second rotating shafts.

[0010] Preferably, a third rotating shaft is respectively sleeved and connected at both ends of the connecting plate, each of the third rotating shafts is connected to the lower end of one of the supporting plates, a fourth rotating shaft is provided on the crawler, and the connecting plate is sleeved and rotatably connected to the fourth rotating shaft.

[0011] Preferably, the fourth rotating shaft is arranged on one end of the crawler track, and a fifth rotating shaft is arranged on the other end of the crawler track, and two adjacent sections of the crawler track are rotatably connected via the fifth rotating shaft.

[0012] The beneficial effect of adopting the above technical solution is that: the present invention adopts the coordinated extension and retraction of the first hydraulic cylinder and the second hydraulic cylinder, and the support plate and the connecting plate drive the segmented crawler to creep forward, and when encountering steps, it can pass smoothly without causing the cargo to tilt, and can effectively overcome the dynamic height difference between the ship and the shore, so that the steel beams can be transported onto the ship smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a partial structural schematic diagram of the present invention;

[0014] Figure 2 It is the first peristaltic movement state diagram of the present invention;

[0015] Figure 3 is a second peristaltic movement state diagram of the present invention;

[0016] Figure 4 is the third peristaltic movement state diagram of the present invention;

[0017] In the figure: 1. platform; 2. hydraulic energy storage tank; 3. hydraulic station; 4. first rotating shaft; 5. first hydraulic cylinder; 6. second rotating shaft; 7. support plate; 8. connecting plate; 9. third rotating shaft; 10. fourth rotating shaft; 11. crawler track; 12. second hydraulic cylinder; 13. fifth rotating shaft. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] like Figure 1 As shown, the transport platform includes a platform 1, on which the steel beam segments are placed and supported, and a plurality of groups of hydraulic cylinders are evenly arranged at the lower part of the platform 1 along the length direction of the platform 1, each group of hydraulic cylinders includes two first hydraulic cylinders 5, the tails of the two first hydraulic cylinders 5 are symmetrical and rotatably connected to the two sides of the platform 1, and the telescopic ends of each group of first hydraulic cylinders 5 are rotatably connected to the upper ends of two support plates 7, and the two support plates 7 are arranged on both sides of each group of first hydraulic cylinders 5 along the length direction of the platform 1, and the lower ends of the two support plates 7 between the two first hydraulic cylinders 5 are respectively rotatably connected to the two ends of the same connecting plate 8, and the bottom of each connecting plate 8 is rotatably connected to the crawler 11, which is divided into a plurality of sections, and each adjacent two sections are rotatably connected; a second hydraulic cylinder 12 is rotatably connected between two adjacent first hydraulic cylinders 5 on the same side of the platform 1. The second hydraulic cylinder 12 is an active buffer cylinder, which mainly plays a damping role and absorbs vibration energy. It can also be controlled to extend or shorten in a small range by injecting low-pressure hydraulic oil. A plurality of hydraulic stations 3 and hydraulic energy storage tanks 2 are also provided on the platform 1. The hydraulic stations 3 control the extension and retraction of each hydraulic cylinder.

[0020] The support plate 7 and the connecting plate 8 are both arc-shaped plates, the arc of each connecting plate 8 is set upward, and the arcs of the two supporting plates 7 connected by rotation at both ends of each connecting plate 8 are set back to back. The support plate 7 is an elastic plate, and the connecting plate 8 is a leaf spring type rocker.

[0021] The telescopic end of each group of first hydraulic cylinders 5 is rotatably connected to a second rotating shaft 6, the upper end of the support plate 7 is rotatably connected to the second rotating shaft 6, and the two ends of the second hydraulic cylinder 12 are rotatably connected to two adjacent second rotating shafts 6. A third rotating shaft 9 is sleeved and connected to the two ends of the connecting plate 8, and each third rotating shaft 9 is rotatably connected to the lower end of a supporting plate 7. A fourth rotating shaft 10 is provided on the crawler 11, and the connecting plate 8 is sleeved and rotatably connected to the fourth rotating shaft 10. The fourth rotating shaft 10 is arranged on the top of one end of the crawler 11, and the other end of the crawler 11 is provided with a fifth rotating shaft 13, and two adjacent crawlers 11 are rotatably connected through the fifth rotating shaft 13.

[0022] like Figure 2-4 As shown, when encountering steps, the hydraulic cylinders and buffer cylinders are controlled by the program to extend and contract accordingly, so that the steps can be climbed without causing the cargo to tilt. This feature is very useful for roll-on / roll-off loading, because when the ship is docked, it is affected by waves, and there is always a dynamic height difference between the ship and the shore, which changes dynamically with the waves and tides. On a flat ground, by coordinating and controlling the extension and contraction of each hydraulic cylinder and buffer cylinder, through the transmission of the support plate 7 and the connecting plate 8, the crawler 11 can be regulated to bend and change continuously at the corresponding position, thereby realizing creeping movement, and the order of creeping determines the direction of advance.

[0023] The present invention utilizes the steel box girder of Anhai Bay Extra-Large Bridge as an engineering example to transport and anchor the entire segment of the 103m steel box girder, which can reduce the cost of erecting temporary supports on the bridge site, shorten the construction period, bring social benefits, and serve as a reference for similar projects in the future.

[0024] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A creeping large-segment steel beam loading and transport platform, characterized in that: include: A platform (1) is provided on the surface of which a steel beam segment is placed and supported. A plurality of groups of hydraulic cylinders are evenly arranged at the bottom of the platform (1) along the length direction of the platform (1). Each group of hydraulic cylinders comprises two first hydraulic cylinders (5). The tails of the two first hydraulic cylinders (5) are symmetrically and rotatably connected to the two sides of the platform (1). The telescopic ends of each group of the first hydraulic cylinders (5) are rotatably connected to the upper ends of two support plates (7). The two support plates (7) are arranged on the two sides of each group of the first hydraulic cylinders (5) along the length direction of the platform (1). The lower ends of the two support plates (7) between the two first hydraulic cylinders (5) are rotatably connected to the two ends of the same connecting plate (8). The bottom of each connecting plate (8) is rotatably connected to a crawler (11). The crawler (11) is divided into a plurality of sections, and each two adjacent sections are rotatably connected. A second hydraulic cylinder (12) is rotatably connected between two adjacent first hydraulic cylinders (5) on the same side of the platform (1). A plurality of hydraulic stations (3) are also arranged on the platform (1). A third rotating shaft (9) is sleeved and connected to each end of the connecting plate (8), each of the third rotating shafts (9) is rotatably connected to the lower end of one of the supporting plates (7), a fourth rotating shaft (10) is provided on the crawler (11), and the connecting plate (8) is sleeved and rotatably connected to the fourth rotating shaft (10); The fourth rotating shaft (10) is arranged on one end of the crawler (11), and the other end of the crawler (11) is provided with a fifth rotating shaft (13), and two adjacent sections of the crawler (11) are rotatably connected via the fifth rotating shaft (13); When encountering steps, the program controls the corresponding extension and contraction of each hydraulic cylinder and buffer cylinder to climb up the step without causing the carried goods to tilt; on flat ground, by coordinating the extension and contraction of each hydraulic cylinder and buffer cylinder, the transmission is transmitted through the support plate and the connecting plate, and the crawler track is regulated to bend and change continuously at the corresponding position, thereby realizing creeping movement, and the order of creeping determines the direction of advancement.

2. The creeping large-segment steel beam loading and transporting platform according to claim 1 is characterized in that: The support plate (7) and the connection plate (8) are both arc-shaped plates, the arc of each connection plate (8) is arranged to face upward, and the arcs of the two support plates (7) rotatably connected at both ends of each connection plate (8) are arranged to face away from each other.

3. The creeping large-segment steel beam ship loading and transporting platform according to claim 1 is characterized in that: The telescopic end of each group of the first hydraulic cylinders (5) is rotatably connected to a second rotating shaft (6), the upper end of the support plate (7) is rotatably connected to the second rotating shaft (6), and the two ends of the second hydraulic cylinder (12) are respectively rotatably connected to two adjacent second rotating shafts (6).

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