Marine heavy lifting device
By designing a marine heavy-duty lifting device, utilizing cantilever and lifting mechanisms, the problem of unloading heavy construction equipment during offshore construction was solved, achieving rapid and stable unloading of the equipment and flexibility to adapt to different seabed conditions.
Patent Information
- Application Number
- CN202520730096.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-17
AI Technical Summary
In the existing technology, there is a lack of dedicated heavy-duty docks for heavy construction equipment when working at sea, which makes it impossible to use lifting or roll-on/roll-off equipment for unloading, thus affecting the construction process.
A heavy-duty marine lifting device was designed, including a cantilever mechanism and a lifting mechanism. The cantilever mechanism is fixedly connected to the hull via a main beam, and the lifting mechanism achieves precise lifting of the flat plate via columns and gear assemblies. The load-bearing capacity and stability are improved by combining connecting trusses and connecting braces.
It enables rapid unloading of heavy construction equipment, is suitable for different water depths and seabed heights, improves the stability and flexibility of the equipment, and is applicable to roll-on/roll-off unloading of tracked and wheeled equipment.
Smart Images
Figure CN223905254U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to offshore construction field, concretely relates to a marine heavy lifting device. BACKGROUND
[0002] Heavy construction equipment, such as crawler crane, hydraulic excavator and self-unloading loader, usually adopts deck transport ship to carry out offshore transportation, however, in the process of offshore engineering construction, when deck transport ship reaches construction sea area, often encounters the problem of lacking special heavy load wharf and being unable to unload by hoisting equipment or roll-on / roll-off equipment, leading to construction equipment being unable to get off the ship, seriously affecting construction progress. SUMMARY
[0003] In view of the defects of the prior art described above, the technical problem to be solved by the utility model is to provide a marine heavy lifting device, which can quickly lower heavy construction equipment on the deck of the ship to seawater or seabed.
[0004] To achieve the above purpose, the utility model provides a marine heavy lifting device, which comprises a cantilever mechanism fixedly connected with a ship body and a lifting mechanism connected on the cantilever mechanism;The cantilever mechanism comprises a main beam, one section of the main beam is fixedly connected with the ship body, the other section extends out of the ship body, and a guide hole is formed in the main beam;The lifting mechanism comprises a flat plate, a stand and a lifting structure, the flat plate is fixedly connected to the bottom end of the stand, a rack is fixedly arranged on the outer circumferential surface of the stand, and the top end of the stand passes through the guide hole, the lifting structure comprises a mounting bracket, a gear assembly arranged on the mounting bracket and a locking assembly for locking the gear assembly, the mounting bracket is fixedly arranged at the guide hole of the main beam, and the gear assembly is engaged with the rack on the stand.
[0005] Further, the cantilever mechanism further comprises a connecting truss located at the top of the main beam, and the ship body is fixedly connected with the top of the main beam through the connecting truss.
[0006] Further, an avoiding hole is formed in the connecting truss, and the top end of the stand can pass through the avoiding hole.
[0007] Further, the cantilever mechanism further comprises a connecting inclined strut located at the bottom of the main beam, and the ship body is fixedly connected with the bottom of the main beam through the connecting inclined strut.
[0008] Further, the main beam of the cantilever mechanism is provided with two, and the two main beams are arranged at intervals.
[0009] Further, the stand of the lifting mechanism is provided with four, two guide holes are formed in the two main beams of the cantilever mechanism respectively, and the four stands of the lifting mechanism pass through the four guide holes of the two main beams respectively.
[0010] Further, two racks are fixedly arranged on the outer circumferential surface of the column, and the two racks are oppositely arranged, and two lifting structures are arranged at the guide holes, and the gear assemblies of the two lifting structures are respectively engaged with the two racks.
[0011] Further, the length extension direction of the rack is arranged as the axial direction of the column.
[0012] Further, the lifting structure further comprises a motor for driving the rotation of the gear assembly.
[0013] As described above, the marine heavy lifting device has the following beneficial effects:
[0014] 1. By arranging the cantilever mechanism, the main beam can be arranged at the bow, the stern or the side of the ship body, and the arrangement is flexible; by arranging the connecting truss and the connecting diagonal brace, the carrying capacity of the cantilever mechanism can be greatly improved, so that the heavy equipment can be directly rolled and unloaded, and the marine heavy lifting device is suitable for tracked equipment, wheeled equipment and the like;
[0015] 2. By arranging the lifting mechanism, the lifting action of the flat plate can be accurately controlled through the rack of the column and the gear assembly of the lifting mechanism, and the flat plate can be unloaded flexibly under different water depths and seabed heights;
[0016] 3. By arranging the guide hole on the main beam of the cantilever mechanism, the column can be constrained, and the flat plate can be prevented from shaking freely, so that the stability of the marine heavy lifting device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a side view of the marine heavy lifting device in the utility model.
[0018] Figure 2 It is a side view of the flat plate in the utility model.
[0019] Figure 3 It is Figure 1 an enlarged view of A in the utility model.
[0020] Figure 4 It is a plan view of the marine heavy lifting device in the utility model.
[0021] Figure 5 It is Figure 4 an enlarged view of B in the utility model.
[0022] Figure 6 It is a structural schematic view of the cantilever mechanism in the utility model
[0023] EXPLANATION OF DRAWINGS
[0024] 1, hull, 2, cantilever mechanism, 210, main beam, 211, guide hole, 220, connecting truss, 221, avoiding hole, 230, connecting diagonal brace, 3, lifting mechanism, 310, flat plate, 320, stand, 321, rack, 330, lifting structure, 331, mounting frame, 332, gear assembly. DETAILED DESCRIPTION
[0025] The specific embodiments of the present application will be described in further detail below with reference to the drawings. These embodiments are only used to illustrate the present application, and are not limiting to the present application.
[0026] In the description of the present application, it should be pointed out that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the device or element to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connecting" and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.
[0029] Reference Figures 1 to 6The utility model provides a kind of marine heavy lifting device, including cantilever mechanism 2 being connected with ship body 1 and lifting mechanism 3 being connected on cantilever mechanism 2;Cantilever mechanism 2 includes main beam 210, preferably, main beam 210 is set as rectangle section long strip section steel;One section of main beam 210 is fixedly connected with ship body 1, preferably, one section of main beam 210 is fixedly welded with ship body 1;Another section extends in ship body 1, guiding hole 211 is set on main beam 210, preferably, the bottom surface of main beam 210 is deck level with ship body 1;Lifting mechanism 3 includes flat plate 310, stand 320 and lifting structure 330, flat plate 310 is fixedly connected at the bottom end of stand 320, rack 321 is fixedly set on the outer periphery of stand 320, and the top end of stand 320 passes through guiding hole 211, preferably, the length of stand 320 can be flexibly set according to the vertical distance between ship body 1 and seabed;Lifting structure 330 includes mounting bracket 331, gear assembly 332 being set on mounting bracket 331 and locking assembly for locking gear assembly 332, mounting bracket 331 is fixedly set at guiding hole 211 of main beam 210, gear assembly 332 is engaged with rack 321 on stand 320, preferably, gear assembly 332 is provided with multiple.
[0030] The basic working principle of the marine heavy lifting device of the utility model is that: by setting cantilever mechanism 2 and lifting mechanism 3, when ship body 1 reaches the operation sea area, flat plate 310 is at initial position, that is, the top surface of flat plate 310 is in contact with the bottom surface of main beam 210, at this time, the top surface of flat plate 310 is flush with the deck of ship body 1, the locking assembly is at locking position, and the construction equipment on ship body 1 can be conveyed from ship body 1 to flat plate 310, by rotating gear assembly 332, gear assembly 332 is engaged with rack 321, drives stand 320 to descend in guiding hole 211 relative to main beam 210, so as to drive flat plate 310 to descend to appropriate height, gear assembly 332 is locked by locking assembly, so that the construction equipment can be unloaded from flat plate 310 and conveyed to seabed, after the construction equipment is unloaded and conveyed, by rotating gear assembly 332, gear assembly 332 is engaged with rack 321, drives stand 320 to ascend in guiding hole 211 relative to main beam 210, so as to drive flat plate 310 to reset to initial position, and continue to unload the construction equipment.
[0031] Referring to Figures 1 to 6 , the utility model is further described with one specific embodiment as follows:
[0032] In the embodiment, referring to Figure 1 , Figure 2 and Figure 6As a preferred design, the cantilever mechanism 2 further comprises a connecting truss 220 located at the top of the main beam 210, the hull 1 is fixedly connected with the top of the main beam 210 through the connecting truss 220, the load of the connecting truss 220 is uniformly transmitted through the node, the local stress concentration can be reduced, and the connecting truss 220 offsets the external load through the reverse tension, the overall rigidity of the connection between the hull 1 and the main beam 210 is improved, so that the cantilever mechanism 2 can be provided with a main beam 210 with a longer length, so as to provide the flat plate 310 with a larger area.
[0033] In the embodiment, referring to Figure 1 、 Figure 2 and Figure 6 , as a preferred design, the connecting truss 220 is provided with a relief hole 221, the top end of the stand column 320 can pass through the relief hole 221, the structural interference between the connecting truss 220 and the stand column 320 can be avoided, and the connecting truss 220 can assist in guiding the stand column 320 to a certain extent.
[0034] In the embodiment, referring to Figure 1 、 Figure 2 and Figure 6 , as a preferred design, the cantilever mechanism 2 further comprises a connecting diagonal brace 230 located at the bottom of the main beam 210, the hull 1 is fixedly connected with the bottom of the main beam 210 through the connecting diagonal brace 230, the connecting diagonal brace 230 can resist lateral force, reduce the lateral displacement of the structure, prevent the main beam 210 from overturning and deforming, so that the cantilever mechanism 2 can be further provided with a main beam 210 with a longer length, so as to provide the flat plate 310 with a larger area.
[0035] In the embodiment, referring to Figure 4 , as a preferred design, the cantilever mechanism 2 is provided with two main beams 210, and the two main beams 210 are arranged at intervals, so that the stability of the cantilever mechanism 2 can be improved, and the flat plate 310 with a larger area can be conveniently connected.
[0036] In the embodiment, referring to Figure 1 、 Figure 2 and Figure 4 , as a preferred design, the stand column 320 of the lifting mechanism 3 is provided with four, two guide holes 211 are respectively formed in the two main beams 210 of the cantilever mechanism 2, and the four stand columns 320 of the lifting mechanism 3 pass through the four guide holes 211 of the two main beams 210, so that the stand columns 320 can be constrained through the guide holes 211, the flat plate 310 can be prevented from shaking freely during work, and the stability of the lifting movement of the flat plate 310 can be improved.
[0037] In the embodiment, referring to Figure 3 and Figure 4As a preferred design, two racks 321 are fixedly arranged on the outer circumferential surface of the column 320, and the two racks 321 are oppositely arranged, two lifting structures 330 are arranged at the guide hole 211, and the gear assemblies 332 of the two lifting structures 330 are respectively engaged with the two racks 321, so that the load can be uniformly distributed by arranging the plurality of gear assemblies 332 and racks 321, the risk of local overload is reduced, and the stability of the lifting movement of the flat plate 310 is further improved.
[0038] In the embodiment, referring to Figure 3 and Figure 4 As a preferred design, the length extension direction of the rack 321 is arranged as the axial direction of the column 320, so as to facilitate the lifting movement of the column 320 relative to the main beam 210.
[0039] In the embodiment, referring to Figure 1 As a preferred design, the lifting structure 330 further comprises a motor for driving the rotation of the gear assembly 332, so that the lifting actions of the four columns 320 can be synchronously controlled by the motor driving, the position synchronization is ensured, and the accumulated error is avoided.
[0040] As can be seen from the above, the marine heavy lifting device has the following beneficial effects:
[0041] 1. By arranging the cantilever mechanism 2, the main beam 210 can be arranged at the bow, the stern or the side of the ship body 1, and the arrangement is flexible; by arranging the connecting truss 220 and the connecting diagonal brace 230, the cantilever mechanism 2 can be greatly improved, so that the heavy equipment can be directly rolled and unloaded, and is suitable for tracked equipment, wheeled equipment and the like;
[0042] 2. By arranging the lifting mechanism 3, the lifting action of the flat plate 310 can be accurately controlled by the rack 321 of the column 320 and the gear assembly 332 of the lifting structure 330, so as to facilitate flexible unloading under different water depths and seabed heights;
[0043] 3. By arranging the guide hole 211 on the main beam 210 of the cantilever mechanism 2, the column 320 can be constrained, so as to prevent the flat plate 310 from shaking freely, and improve the stability of the marine heavy lifting device. As described above, the utility model effectively overcomes the shortcomings in the prior art and has high industrial utilization value.
[0044] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.
Claims
1. A marine heavy lift device, characterized by: The application relates to a cantilever mechanism (2) fixedly connected with a ship body (1) and a lifting mechanism (3) connected with the cantilever mechanism (2); the cantilever mechanism (2) comprises a main beam (210), one section of the main beam (210) is fixedly connected with the ship body (1), the other section of the main beam (210) extends out of the ship body (1), and a guide hole (211) is formed in the main beam (210); the lifting mechanism (3) comprises a flat plate (310), a stand column (320) and a lifting structure (330), the flat plate (310) is fixedly connected with the bottom end of the stand column (320), a rack (321) is fixedly arranged on the outer circumferential surface of the stand column (320), the top end of the stand column (320) penetrates through the guide hole (211), the lifting structure (330) comprises a mounting frame (331), a gear assembly (332) arranged on the mounting frame (331) and a locking assembly used for locking the gear assembly (332), the mounting frame (331) is fixedly arranged at the guide hole (211) of the main beam (210), and the gear assembly (332) is engaged with the rack (321) on the stand column (320).
2. Marine heavy lift apparatus according to claim 1, characterised in that: The cantilever mechanism (2) further comprises a connecting truss (220) located at the top of the main beam (210), and the ship body (1) is fixedly connected with the top of the main beam (210) through the connecting truss (220).
3. Marine heavy lift apparatus according to claim 2, characterised in that: An avoiding hole (221) is formed in the connecting truss (220), and the top end of the stand column (320) can penetrate through the avoiding hole (221).
4. Marine heavy lift apparatus according to claim 3, characterised in that: The cantilever mechanism (2) further comprises a connecting inclined strut (230) located at the bottom of the main beam (210), and the ship body (1) is fixedly connected with the bottom of the main beam (210) through the connecting inclined strut (230).
5. Marine heavy lift apparatus according to claim 4, characterised in that: The main beam (210) of the cantilever mechanism (2) is provided with two main beams (210) which are arranged at intervals.
6. Marine heavy lift apparatus according to claim 5, characterised in that: The stand column (320) of the lifting mechanism (3) is provided with four stand columns (320), two guide holes (211) are formed in each of the two main beams (210) of the cantilever mechanism (2), and the four stand columns (320) of the lifting mechanism (3) penetrate through the four guide holes (211) of the two main beams (210).
7. Marine heavy lift apparatus according to claim 6, characterised in that: Two racks (321) are fixedly arranged on the outer circumferential surface of the stand column (320), and the two racks (321) are oppositely arranged, and the lifting structure (330) at the guide hole (211) is provided with two lifting structures (330), and the gear assemblies (332) of the two lifting structures (330) are engaged with the two racks (321) respectively.
8. Marine heavy lift apparatus according to claim 7, characterised in that: The length extension direction of the rack (321) is arranged as the axial direction of the stand column (320).
9. Marine heavy lift as claimed in claim 1, characterized in that: The lifting structure (330) further comprises a motor used for driving the gear assembly (332) to rotate.