CN-224226529-U - Extensible platform of offshore crane

Abstract

The utility model discloses an extensible platform of an offshore crane, which relates to the technical field of offshore cranes and comprises a crane body, a supporting table arranged below the crane body and a stretching mechanism, wherein the supporting table is fixedly arranged below the supporting table, the stretching mechanism is arranged on the supporting table and comprises an extending plate fixedly connected with the supporting table, a fixed shaft is arranged on the extending plate, a connecting piece is rotatably arranged on the fixed shaft, a rotating shaft is rotatably arranged on the connecting piece, an extending sleeve is rotatably arranged on the rotating shaft, an expansion plate is slidably arranged on the inner side of the extending sleeve, a limiting block is arranged on the expansion plate, a groove hole is formed in the extending plate, and the groove hole is matched with the limiting block and is used for connecting the extending plate and the expansion plate. The extensible platform of the offshore crane can be folded in the shipping process, the shipping is convenient, and when the offshore crane is shipped to an operation point, the offshore crane is extended, so that the buoyancy is increased, and the bearing capacity in the lifting process is further maintained.

Inventors

• He Shuihui
• WU WEI
• YU HAO

Assignees

• 江苏鼎盛重工有限公司

Dates

Publication Date

20260512

Application Date

20250527

Claims (6)

1. 1. An expandable platform of an offshore crane comprises a crane body (1), a stable seat (10) is fixedly arranged below the crane body (1), Characterized by further comprising: The utility model provides a fixed supporting bench (11) that sets up in firm seat (10) below, and the both sides of supporting bench (11) are integrative to be provided with extension mechanism (2) that are used for expanding supporting bench (11) area, extension mechanism (2) include extension board (20) with supporting bench (11) fixed connection, and fixedly are provided with fixed axle (21) on extension board (20), rotate on fixed axle (21) and be provided with connecting piece (22), and rotate on connecting piece (22) and be provided with rotation axis (23), rotate on rotation axis (23) and be provided with extension cover (24), and the inboard slip of extension cover (24) is provided with expansion plate (25), be provided with stopper (26) on expansion plate (25), be provided with slot hole (28) on extension board (20), and slot hole (28) are used for connecting extension board (20) and expansion plate (25) with stopper (26) cooperation.
2. 2. The expandable platform of the offshore crane according to claim 1, wherein a locking assembly (29) is arranged in the slot (28), a limiting hole (27) is formed in the limiting block (26), and the limiting hole (27) is matched with the locking assembly (29) to lock the limiting block (26) and the slot (28).
3. 3. An expandable platform for an offshore crane according to claim 2, wherein the locking assembly (29) comprises a hollow sleeve (290) fixedly connected with the extension plate (20), a sliding rod (291) is slidably arranged in the hollow sleeve (290), a fixing plate (292) is fixedly arranged at one end of the sliding rod (291), and the diameter of the outer ring of the fixing plate (292) is smaller than the diameter of the inner ring of the limiting hole (27).
4. 4. An expandable platform for an offshore crane according to claim 3, wherein the retaining plate (292) is fixedly provided with a return spring (293), and wherein an end of the return spring (293) remote from the retaining plate (292) is fixedly connected to the inner surface wall of the slot (28).
5. 5. The expandable platform of an offshore crane according to claim 4, wherein a push-pull handle (294) is fixedly arranged at one end of the sliding rod (291) far away from the fixed plate (292), and the push-pull handle (294) is used for driving the sliding rod (291) to move.
6. 6. The expandable platform of the offshore crane according to claim 1, wherein the crane body (1) is fixedly provided with a reinforcing plate (12), and the reinforcing plate (12) is fixedly connected with the stabilizing base (10).

Description

Extensible platform of offshore crane Technical Field The utility model relates to the technical field of offshore cranes, in particular to an expandable platform of an offshore crane. Background With the acceleration of the development process of global ocean resources, the offshore crane is used as a core component of ocean engineering equipment, and plays an irreplaceable role in the fields of offshore wind power installation, offshore oil platform construction, cross-sea bridge construction and the like. The offshore crane is generally deployed on a floating carrier such as a semi-submersible platform, a jack-up platform or a floating barge, so as to realize the lifting, transferring and installing operations of the heavy objects. The operation environment of the offshore crane has remarkable specificity, compared with the land environment, dynamic factors such as wind, wave and current in the marine environment can generate continuous dynamic load on a crane platform, meanwhile, as the ocean engineering develops to the deep ocean, the water depth of the operation sea area is continuously increased, and the operation radius and the lifting height which are required to be covered by the crane are also remarkably improved. Currently, the offshore crane platform is designed in a fixed manner, that is, the bearing capacity is improved by increasing the size of the platform and improving the strength of materials, however, the platform playing a floating support needs to provide a stable bearing capacity because the offshore crane load is larger or smaller, and if the floating load area of the platform is increased uniformly, the resistance of the platform is larger in the process of consignment. Thus, in view of the above problems, there is a need for an expandable platform for an offshore crane. Disclosure of utility model The object of the present utility model is to provide an expandable platform for an offshore crane, which solves the problems mentioned in the background art above. In order to achieve the aim, the utility model provides the technical scheme that the expandable platform of the offshore crane comprises a crane body, a stable seat is fixedly arranged below the crane body, The support table is fixedly arranged below the stable seat, extension mechanisms for extending the area of the support table are integrally arranged on two sides of the support table, each extension mechanism comprises an extension plate fixedly connected with the support table, a fixed shaft is fixedly arranged on each extension plate, a connecting piece is rotatably arranged on each fixed shaft, a rotating shaft is rotatably arranged on each connecting piece, an extension sleeve is rotatably arranged on each rotating shaft, a telescopic plate is slidably arranged on the inner side of each extension sleeve, a limiting block is arranged on each telescopic plate, a groove hole is formed in each extension plate, and the corresponding groove hole is matched with each limiting block and used for connecting each extension plate and each telescopic plate. Further, a locking assembly is arranged in the slot hole, a limiting hole is formed in the limiting block, and the limiting hole is matched with the locking assembly to be used for locking the limiting block and the slot hole. Through above-mentioned structural design, the cooperation in locking subassembly and spacing hole can realize the rigidity locking of expansion plate and extension plate, avoids leading to stability to decline because of connecting the looseness under the dynamic load effect in the transportation. Further, the locking assembly comprises a hollow sleeve fixedly connected with the extension plate, a sliding rod is arranged in the hollow sleeve in a sliding mode, a fixing plate is fixedly arranged at one end of the sliding rod, and the diameter of an outer ring of the fixing plate is smaller than the diameter of an inner ring of the limiting hole. Through above-mentioned structural design, the sliding fit design of hollow cover and slide bar for locking action accessible rectilinear movement accomplishes fast, reduces operation complexity, and the fixed plate diameter is less than the design of spacing hole, has both guaranteed the fault-tolerant rate when the spring bolt is accurate to insert spacing hole, has reduced the wearing and tearing problem after long-term use through contact surface pressure distribution optimization again. Further, the fixed plate is fixedly provided with a reset spring, and one end of the reset spring, which is far away from the fixed plate, is fixedly connected with the inner surface wall of the slot hole. Through the structural design, the introduction of the return spring enables the locking assembly to have an automatic return function, and the locking state can be immediately restored after the external operation force is released, so that accidental unlocking caused by human negligence or vibration is prevented. Further