CN218175790U

CN218175790U - A plug stake elevating system for semi-submerged sit end platform

Info

Publication number: CN218175790U
Application number: CN202222506537.8U
Authority: CN
Inventors: 周宏勤
Original assignee: Shandong Hongzhou Offshore Engineering Co ltd
Current assignee: Shandong Hongzhou Offshore Engineering Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2022-12-30
Anticipated expiration: 2032-09-21

Abstract

The utility model discloses a plug stake elevating system for semi-submerged sit end platform, elevating system is including setting up in the sealed cabin and being used for the last guide structure and the lower guide structure of control and spud leg, and it is fast that the upside of going up guide structure and lower guide structure's downside are equipped with the wedge respectively, still including setting up the lift unit between last guide structure and the lower guide structure, the lift unit includes the gear that climbs that power pack drove, climb the gear and set up the spud leg rack toothing on the spud leg. The lifting mechanism enables the offshore operation ship or platform to have rapid flexibility, stability and safety, reduces the traditional anchoring process, and greatly improves the working efficiency of the operation ship platform.

Description

A plug stake elevating system for semi-submerged sit end platform

Technical Field

The utility model relates to a sea worker equips the field, especially relates to a plug stake elevating system that is used for semi-submerged seat end platform.

Background

Compared with an onshore wind power plant, the offshore wind power plant has the advantages that land resources are not occupied, the influence of landforms and landforms is basically avoided, the wind speed is higher, the wind energy resources are richer, the single-machine capacity of the wind generation set is larger, and the annual utilization hours are higher. In order to facilitate the construction and maintenance of offshore wind farms, installation vessels with hoisting capability are generally required as main operating equipment.

The semi-submersible bottom-sitting type mounting platform is one of the semi-submersible bottom-sitting type mounting platforms, and is in a bottom-sitting, semi-submersible or floating state through the ballast state of the ballast tank, so that the operation and towing are facilitated. For example, a multifunctional crane ship with floating, semi-submerged and bottom-sitting functions is disclosed in the utility model with publication number CN 213594477U. The utility model discloses a technical scheme who provides is that total weight and the focus position that changes the engineering ship through the total amount and the distribution that change the ballast water to realize floating, semi-submerged and sit the end function, can adapt to various engineering project sea conditions, but greatly reduced construction cost and improvement efficiency of construction. Meanwhile, the patent also discloses that a positioning pile and a corresponding pile hole are arranged on the ship body, and the anti-sliding function of the ship body in a bottom-seated state can be realized by inserting the positioning pile into the pile hole. Because this spud pile carries out the pile inserting location through gravity, the positioning effect is poor, and the pile inserting and pulling out is uncontrolled simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at disclosing a plug stake elevating system for the realization provides one kind and possesses stability, rapidity, convenience and the high underwater rack and pinion formula plug stake elevating system of security performance simultaneously to the active control of spud leg. Simultaneously, a semi-submersible bottom-sitting type installation platform applying the plugging pile lifting mechanism is disclosed.

In order to achieve the effect, the application discloses a plug pile lifting mechanism, lifting mechanism is including setting up in the sealed cabin and being used for control and last guide structure and lower guide structure of spud leg, and it is fast that the upside of going up guide structure and the downside of lower guide structure are equipped with the wedge respectively, still including setting up the lifting unit between last guide structure and lower guide structure, lifting unit includes the gear that climbs that power unit drove, the gear that climbs with set up the spud leg rack toothing on the spud leg.

Furthermore, a rotary encoder is arranged on the lifting unit.

Furthermore, at least two groups of pile leg racks are arranged on the pile legs, and each group of pile leg racks is at least matched with one group of lifting units.

Further, the power unit includes a hydraulic motor and a gearbox.

Further, go up guide structure and guide structure down and all include the middle guide part that holds the spud leg and hold the side guide part of spud leg rack.

The beneficial effects of the utility model include:

the utility model discloses a plug stake elevating system makes the plug stake become more nimble convenient fast. When the pile legs are pulled up and retracted, the ship or the platform can move; after the ship or the platform reaches a target operation area, the lifting mechanism puts the pile legs down and inserts the pile legs into the seabed, and the ship or the platform is anchored at the position and fixed, so that operation can be carried out. The lifting mechanism enables the offshore operation ship or the offshore operation platform to have flexibility, stability and safety at the same time, reduces the traditional anchoring process, and greatly improves the working efficiency of the operation ship platform.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a structural diagram of the present invention.

Fig. 2 is a top view structural diagram of the present invention.

Fig. 3 is a schematic structural view of the upper guiding structure of the present invention.

Fig. 4 is the schematic view of the semi-submersible bottom-mounted mounting platform of the present invention.

In the figure: 1. a wedge block; 2. an upper guide structure; 3. pile legs; 4. a lifting unit; 5. a lower guide structure; 6. sealing the cabin; 7. a rotary encoder; 8. a lifting unit bracket assembly; 31. A leg rack; 41. a climbing gear; 42. a power unit; 100. A latent body; 200. a buoyancy tank; 300. a pile fixing chamber; 400. a watertight compartment; 401. and a watertight door.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but the following embodiments are merely illustrative of the preferred embodiments, which are provided for the purpose of explanation and understanding of the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1-2, the lifting mechanism for inserting and pulling out a pile comprises an upper guide structure 2 and a lower guide structure 5 which are arranged in a sealed cabin 6 and used for controlling a pile leg 3, wherein wedge blocks are respectively arranged on the upper side of the upper guide structure 2 and the lower side of the lower guide structure 5, and the lifting mechanism further comprises a lifting unit 4 arranged between the upper guide structure 2 and the lower guide structure 5, wherein the lifting unit 4 comprises a climbing gear 41 driven by a power unit 42, and the climbing gear 41 is meshed with a pile leg rack 31 arranged on the pile leg. The upper and lower guide structures 5 control the motion direction of the pile leg, and the wedge-shaped block 1 ensures that the pile leg and the platform are relatively fixed in the towing process of the platform.

The preferable technical scheme is that a rotary encoder 7 is arranged on the lifting unit 4. The rotary encoder 7 can be fitted with the climbing gear 41 for counting the rotation of the climbing gear 41 and converting into the real-time height of the leg.

In a preferred embodiment, two sets of leg racks 31 are provided on the legs, and each set of leg racks 31 is engaged with the set of elevating units 4. Four sets of lifting units 4 are arranged on each pile of lifting mechanism, two racks are arranged on each pile, and two sets of lifting units 4 are arranged on each rack. Each set of lifting unit 4 consists of a climbing gear 41, a gear box and a hydraulic motor, and the climbing gear 41 is meshed with the pile leg rack 31.

Referring to fig. 3, it is preferred that the upper and

lower guide structures

2, 5 each comprise a middle guide part 21 to accommodate the legs and a side guide part 22 to accommodate the leg rack 31. Four lifting units 4 are arranged at each pile leg, driven by hydraulic motors, respectively arranged at two sides of the pile leg, and meshed with racks at two sides of the pile leg to drive the pile leg to move up and down. The guiding of the pile leg is completed by the upper and lower guiding structures 5 and the climbing gear 41 together, and the limiting of the groove of the pile leg, which is provided with the upper and lower guiding structures 5, on the side surface of the gear is completed.

Referring to fig. 4, the semi-submersible bottom-mounted installation platform based on the above mechanism comprises a buoyancy tank 200 arranged on a submersible body 100, the installation platform is installed on the buoyancy tank 200, and the submersible body 100 further comprises the above pile inserting and pulling lifting mechanism.

The pile inserting and pulling lifting mechanism is arranged in a pile fixing chamber 300 on the submerged body 100. Preferably, the pile fixing chamber 300 where the lifting mechanism is located is completely underwater during the platform bottom-setting operation, the maximum underwater penetration depth is close to 52 meters, and the climbing gear 41 of the lifting unit 4 works in the seawater at this time. After the platform is pulled out to float, the pile fixing chamber 300 is exposed out of the water surface, and convenience is brought to fault treatment.

More preferably, the lifting unit support assembly 8 of the pile inserting and pulling lifting mechanism, the sealed cabin 6 and the mounting platform body form a watertight cabin 400, and a watertight door 401 is arranged on the watertight cabin 400. Preferably, the lifting unit bracket assembly 8 of the lifting mechanism, the sealed cabin 6 and the upper and lower decks of the ship body form the sealed cabin, namely the watertight cabin 400, the climbing gear 41 and the pile leg are separated from the cabin where the driving assembly is located, the gear box and the hydraulic motor are ensured not to contact with seawater forever, and the maintenance can be facilitated when the platform is in a floating state.

Four groups of inserting and pulling pile lifting mechanisms are arranged on the mounting platform and are respectively arranged on the inner sides of the upright posts of the lower floating body of the mounting platform. The lifting mechanism is provided with four pile legs, and each pile leg is provided with four lifting units 4 which are driven by a hydraulic motor, are respectively arranged on two sides of the pile leg and are meshed with racks on two sides of the pile leg to drive the pile leg to move up and down. The guiding of the pile leg is completed by the upper and lower guiding structures 5 and the climbing gear 41 together, and the limiting of the groove of the pile leg, which is provided with the upper and lower guiding structures 5, on the side surface of the gear is completed.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a plug stake elevating system for semi-submerged sit end platform which characterized in that: the lifting mechanism comprises an upper guide structure (2) and a lower guide structure (5) which are arranged in a sealed cabin (6) and used for controlling and pile legs (3), wherein the upper side of the upper guide structure and the lower side of the lower guide structure are respectively provided with a wedge block (1), the lifting mechanism further comprises a lifting unit (4) which is arranged between the upper guide structure and the lower guide structure, the lifting unit comprises a climbing gear (41) driven by a power unit (42), and the climbing gear is meshed with a pile leg rack (31) arranged on the pile legs (3).

2. The pile driving mechanism for a semi-submersible platform as claimed in claim 1, wherein: and a rotary encoder (7) is arranged on the lifting unit.

3. The pile driving and lowering mechanism for a semi-submersible platform according to claim 1, wherein: the pile leg rack on the pile leg is provided with at least two groups, and each group of pile leg rack is matched with at least one group of lifting unit.

4. The pile driving and lowering mechanism for a semi-submersible platform according to claim 1, wherein: the power unit includes a hydraulic motor and a gearbox.

5. The pile driving and lowering mechanism for a semi-submersible platform according to claim 1, wherein: go up guide structure and lower guide structure and all include the middle guide part that holds the spud leg and hold the side guide part of spud leg rack.

6. The pile driving mechanism for the semi-submersible platform according to any one of claims 1-5, wherein: the semi-submersible bottom-sitting type mounting platform comprises a buoyancy tank (200) arranged on a submersible body (100), and the buoyancy tank is provided with a mounting platform.

7. The pile driving and lowering mechanism for a semi-submersible platform according to claim 6, wherein: the pile inserting and pulling lifting mechanism is arranged in a pile fixing chamber (300) on the submerged body.

8. The pile driving and lowering mechanism for a semi-submersible platform according to claim 6, wherein: the pile inserting and pulling lifting mechanism is characterized in that a lifting unit support assembly (8) of the pile inserting and pulling lifting mechanism, a sealed cabin (6) and a mounting platform body jointly form a watertight cabin (400), and a watertight door (401) is arranged on the watertight cabin.

9. The pile driving and lowering mechanism for a semi-submersible platform according to claim 6, wherein: four groups of inserting and pulling pile lifting mechanisms are arranged on the mounting platform and are respectively arranged at four corners of the mounting platform.