Barrel body guide pulley structure for wind power pile-barrel composite foundation

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By arranging the guide wheel assembly and the flexible ring on the inner wall of the barrel, the friction problem between the barrel and the steel pipe pile is solved, the anti-corrosion coating is protected, and the service life of the wind power pile-barrel composite foundation is extended.

CN223343280UActive Publication Date: 2025-09-16CRCC HARBOR & CHANNEL ENG BUREAU GRP

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Patent Information

Application Number: CN202422844364.X
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-11-20
Publication Date: 2025-09-16
Estimated Expiration: 2034-11-20

AI Technical Summary

Technical Problem

During the construction of wind turbine pile-barrel composite foundations, the unstable movement of the lifting ship causes friction and scratches between the barrel body and the steel pipe pile, destroying the anti-corrosion coating and shortening the service life of the wind turbine pile-barrel composite foundation.

Method used

A guide wheel assembly is arranged in a ring on the inner wall of the barrel body, including a guide plate and a pulley. The point contact of the pulley reduces friction, and the guide plate guides the barrel body to sink, and the flexible ring reduces wear.

Benefits of technology

Effectively reduce the surface friction of steel pipe piles, protect the anti-corrosion coating, and extend the service life of wind power pile-barrel composite foundation.

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Abstract

The utility model relates to the technical field of offshore wind power installation, in particular to a barrel body guide pulley structure for a wind power pile-barrel composite foundation, the barrel body guide pulley structure is used on the inner barrel wall of a barrel body, and the barrel body guide pulley structure is used for abutting against a steel pipe pile; the barrel body guide wheel structure comprises a plurality of guide wheel assemblies which are annularly arranged at intervals; the guide wheel assembly comprises two guide plates and a pulley, the guide plates are vertically arranged, the guide plates are used for being welded and fixed to the inner barrel wall of the barrel body, the pulley is arranged between the two guide plates, the pulley is rotationally connected with the two guide plates, and the pulley is used for abutting against the steel pipe pile. In the process that the steel pipe pile is sleeved with the barrel body, the guide wheel assembly is in point type contact with the steel pipe pile through the pulley; therefore, when a hoisting ship and a barrel body shake, large-area friction on the surface of the steel pipe pile can be reduced, damage to an anti-corrosion coating on the surface of the steel pipe pile is reduced, and the service life of the wind power pile-barrel composite foundation is prolonged.

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Description

Technical Field

[0001] The present application relates to the technical field of offshore wind power installation, and in particular to a barrel guide pulley structure for a wind power pile-barrel composite foundation. Background Art

[0002] The wind turbine pile-barrel composite foundation structure is a new type of offshore wind turbine foundation structure. It combines the advantages of single pile foundation and barrel foundation. The wind turbine pile-barrel composite foundation structure can improve the stability and bearing capacity of offshore wind turbine foundation and is widely used in offshore wind power projects.

[0003] The wind turbine pile-bucket composite foundation structure usually consists of two parts: a monopile foundation and a bucket foundation. The monopile foundation (steel pipe pile) is driven using a stabilization technique to secure the steel pipe pile to the seabed.

[0004] The bucket-type foundation structure (bucket body) is first installed on the installed single pile foundation through ship crane equipment, and then sinks into place by its own weight and vacuum pumping. The underwater grouting process is then used to connect the steel pipe pile (single pile foundation) and the bucket body (bucket-type foundation) into a whole.

[0005] During the construction of the wind turbine pile-barrel composite foundation structure, when the lifting ship puts the barrel body on the outer periphery of the steel pile and moves the barrel body downward along the length of the steel pipe pile, the lifting ship will produce up and down heave and unstable horizontal movement, which makes it difficult for the barrel body to pass through the pile. Friction and scratches are easily generated between the inner barrel wall of the barrel body and the steel pipe pile, which damages the anti-corrosion coating of the steel pipe pile and shortens the service life of the wind turbine pile-barrel composite foundation. Utility Model Content

[0006] In order to facilitate the passing of the barrel in the wind power pile-barrel composite foundation, reduce the damage to the anti-corrosion coating of the steel pipe pile, and improve the service life of the wind power pile-barrel composite foundation, the present application provides a barrel guide pulley structure for the wind power pile-barrel composite foundation.

[0007] This application provides a barrel guide pulley structure for a wind power pile-barrel composite foundation, which adopts the following technical solutions:

[0008] A barrel guide pulley structure for a wind power pile-barrel composite foundation, wherein the barrel guide wheel structure is used on the inner barrel wall of the barrel body, and the barrel guide wheel structure is used to abut against steel pipe piles; the barrel guide wheel structure includes a plurality of guide wheel assemblies, and the plurality of guide wheel assemblies are arranged in annular intervals along the inner barrel wall of the barrel body; the guide wheel assembly includes two guide plates and a pulley, the guide plates are arranged vertically, and the guide plates are used to be welded and fixed to the inner barrel wall of the barrel body, and the pulley is arranged between the two guide plates, the pulley is rotatably connected to the two guide plates, and the pulley is used to abut against the steel pipe piles.

[0009] By adopting the above technical solution, a number of guide wheel assemblies are arranged in a ring on the inner barrel wall of the barrel body. When the barrel body is inserted into the steel pipe pile, the guide wheel assembly and the steel pipe pile are in point contact through the pulley; therefore, when the hoisting ship and the barrel body shake, the friction over a large area on the surface of the steel pipe pile can be reduced, thereby reducing the damage to the anti-corrosion coating on the surface of the steel pipe pile and extending the service life of the wind power pile-barrel composite foundation.

[0010] Optionally, in the vertical direction, the distance between the guide plate and the inner barrel wall of the barrel body decreases from the middle to both sides.

[0011] By adopting the above technical solution, when the barrel body sinks to penetrate the steel pipe pile, the semicircular guide plate can play a guiding role, so that the steel pipe pile can be set between several guide wheel assemblies to achieve the purpose of sleeve the barrel body on the outer periphery of the steel pipe pile.

[0012] Optionally, the guide wheel assembly further includes a plurality of reinforcing ribs, one side of the reinforcing ribs is welded and fixed to the guide plate, and the other side of the reinforcing ribs is used to be welded and fixed to the inner barrel wall of the barrel body.

[0013] By adopting the above technical solution, the reinforcing ribs can improve the overall rigidity of the guide wheel assembly, reduce the impact loss of the guide wheel assembly, and ensure the guiding and limiting functions of the guide wheel assembly.

[0014] Optionally, there are two pulleys, which are spaced apart along the length direction of the barrel body.

[0015] By adopting the above technical solution, when the barrel body is just passed through the steel pipe pile, the two pulleys on the same guide wheel assembly contact the steel pipe pile, thereby correcting the position of the barrel body; reducing the tilt of the barrel body, so that the barrel body can fall vertically to be fitted around the outer periphery of the steel pipe pile.

[0016] Optionally, the guide wheel assembly further includes a flexible collar, which is sleeved on the outer periphery of the pulley and is used to abut against the steel pipe pile.

[0017] By adopting the above technical solution, the flexible ring is used to abut against the steel pipe pile, so that when the pulley interacts with the steel pipe pile, the wear of the anti-corrosion coating on the surface of the steel pipe pile can be further reduced, thereby increasing the service life of the wind power pile-barrel composite foundation.

[0018] Optionally, the guide wheel assembly further includes a connecting member, which is disposed between the two guide plates and is fixed to the guide plates by welding.

[0019] By adopting the above technical solution, the staff can pre-connect the connecting piece, the guide plate and the pulley into a whole, and then weld and fix the guide plate to the inner barrel wall of the barrel body to achieve the purpose of reducing work intensity.

[0020] Optionally, the guide wheel assembly is provided in two layers at intervals along the length direction of the barrel body.

[0021] By adopting the above technical solution, the guide wheel assembly is provided with two layers to improve the stability of the barrel body moving along the periphery of the steel pipe pile.

[0022] Optionally, the maximum distance between the pulley and the inner wall of the barrel is 30 cm.

[0023] By adopting the above technical solution, the maximum distance between the pulley and the inner wall of the barrel body is 30 cm, thereby ensuring the accurate relative position of the clearance between the barrel body and the steel pipe pile, thereby improving the subsequent connection strength between the steel pipe pile and the barrel body.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting a number of guide wheel assemblies in a ring on the inner wall of the barrel, when the barrel is inserted into the steel pipe pile, the guide wheel assemblies and the steel pipe pile are in point contact through the pulley. This can reduce large-area friction on the surface of the steel pipe pile when the lifting ship and the barrel shake, thereby reducing damage to the anti-corrosion coating on the steel pipe pile surface and extending the service life of the wind turbine pile-barrel composite foundation;

[0026] 2. When the barrel is sunk to penetrate the steel pipe pile, the semicircular guide plate can play a guiding role, so that the steel pipe pile can be set between the several guide wheel assemblies, so as to achieve the purpose of sleeve the barrel around the outer periphery of the steel pipe pile;

[0027] 3. The flexible ring is used to abut against the steel pipe pile, so that when the pulley interacts with the steel pipe pile, the wear of the anti-corrosion coating on the surface of the steel pipe pile can be further reduced, thereby increasing the service life of the wind power pile-barrel composite foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the wind power pile-barrel composite foundation in Example 1.

[0029] Figure 2 It is a structural schematic diagram of the barrel guide wheel structure in Example 1.

[0030] Figure 3 It is a cross-sectional view of the barrel guide wheel structure in Example 1.

[0031] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0032] Figure 5 yes Figure 3 Enlarged view of point B in the middle.

[0033] Figure 6 yes Figure 5 Enlarged view of point C in the middle.

[0034] Figure 7 It is a structural schematic diagram of the guide wheel assembly in Example 2.

[0035] Figure 8 yes Figure 7 Magnified view of point D in .

[0036] Explanation of the accompanying reference numerals: 1. steel pipe pile; 2. cylinder; 3. guide wheel assembly; 31. guide plate; 32. pulley; 33. reinforcing rib; 34. connecting piece; 35. flexible ring. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1 -8 Provide further details on this application.

[0038] Reference Figure 1 The wind turbine pile-barrel composite foundation consists of a steel pipe pile 1 and a barrel 2. The barrel is fitted over the steel pipe pile 1 and connected to the barrel 2 through underwater grouting. During construction, the barrel is hoisted by a hoisting vessel and fitted around the steel pipe pile 1. The barrel 2 is then slowly lowered through the steel pipe pile 1.

[0039] Since the lifting of the ship will produce up and down heave and unstable horizontal movement, it will make it difficult for the barrel to pass through the pile. Friction and scratching will easily occur between the inner barrel wall of the barrel and the steel pipe pile 1, destroying the anti-corrosion coating of the steel pipe pile 1, resulting in a shortened service life of the wind turbine pile-barrel composite foundation.

[0040] Reference Figure 2 and Figure 3 The embodiment of the present application discloses a barrel guide pulley 32 structure for a wind turbine pile-barrel composite foundation. The barrel guide wheel structure is used on the inner barrel wall of the barrel body and is used to abut against the steel pipe pile 1. The barrel guide pulley 32 structure includes a plurality of guide wheel assemblies 3, which are arranged in an annular manner along the inner barrel wall of the barrel body. The guide wheel assemblies 3 are arranged in two layers along the length of the barrel body to improve the stability of the barrel body moving along the outer periphery of the steel pipe pile 1. In this embodiment, there are 24 guide wheel assemblies 3 in total, that is, each layer has 14 guide wheel assemblies 3; and the two layers of guide assemblies are located on the same vertical line.

[0041] Reference Figure 4 and Figure 5The guide wheel assembly 3 includes a guide plate 31, a pulley 32 and a reinforcing rib 33. Two guide plates 31 are arranged at intervals, and the guide plates 31 are arranged vertically. The guide plates 31 are used to be welded and fixed to the inner barrel wall of the barrel body. The pulley 32 is arranged between the two guide plates 31, and the pulley 32 is rotatably connected to the two guide plates 31. The pulley 32 is used to abut against the steel pipe pile 1. When the barrel body is inserted into the steel pipe pile 1, the guide wheel assembly 3 and the steel pipe pile 1 are in point contact through the pulley 32; therefore, when the hoisting ship and the barrel body shake, the friction of a large area on the surface of the steel pipe pile 1 can be reduced, thereby reducing the damage of the anti-corrosion coating on the surface of the steel pipe pile 1 and extending the service life of the wind power pile-barrel composite foundation.

[0042] Reference Figure 4 and Figure 5 In this embodiment, along the vertical direction, the distance between the guide plate 31 and the inner barrel wall of the barrel body decreases from the middle to both sides; when the barrel body sinks to penetrate the steel pipe pile 1, the semicircular guide plate 31 can play a guiding role, so that the steel pipe pile 1 can be set between several guide wheel assemblies 3, so as to achieve the purpose of sleeve the barrel body on the outer periphery of the steel pipe pile 1.

[0043] Reference Figure 6 At the same time, there are two pulleys 32, which are arranged at intervals along the length direction of the barrel body; when the barrel body is just passed through the steel pipe pile 1, the two pulleys 32 on the same guide wheel assembly 3 contact the steel pipe pile 1, thereby correcting the position of the barrel body; reducing the tilt of the barrel body, so that the barrel body can fall vertically to be mounted on the outer periphery of the steel pipe pile 1.

[0044] In this embodiment, the maximum distance between pulley 32 and the inner wall of the barrel is 30 cm. This ensures accurate relative positioning of the barrel and the steel-pipe pile 1, thereby enhancing the subsequent connection strength between the steel-pipe pile 1 and the barrel. In this embodiment, pulley 32 is a steel wheel, thereby minimizing damage to pulley 32 when the barrel and the steel-pipe pile 1 interact.

[0045] Reference Figure 4 and Figure 5 There are several reinforcing ribs 33, one side of the reinforcing rib 33 is welded and fixed to the guide plate 31, and the other side of the reinforcing rib 33 is used to be welded and fixed to the inner barrel wall of the barrel body; the reinforcing ribs 33 can improve the overall rigidity of the guide wheel assembly 3, reduce the impact loss of the guide wheel assembly 3, and ensure the guiding and limiting function of the guide wheel assembly 3.

[0046] Example 2

[0047] The difference between this embodiment 2 and embodiment 1 is that:

[0048] Reference Figure 7 and Figure 8 The guide wheel assembly 3 also includes a connecting piece 34 and a flexible collar 35 .

[0049] The connecting piece 34 is arranged between the two guide plates 31, and the connecting piece 34 is welded and fixed to the guide plates 31; thus, through the limiting effect of the connecting piece 34, the staff can pre-connect the connecting piece 34, the guide plates 31 and the pulley 32 into a whole, and then weld the guide plates 31 to the inner barrel wall of the barrel body to achieve the purpose of reducing work intensity.

[0050] A flexible collar 35 is mounted around the outer periphery of the pulley 32 and is used to abut against the steel pipe pile 1. This reduces wear of the anti-corrosion coating on the steel pipe pile 1 when the pulley 32 and the steel pipe pile 1 interact, thereby extending the service life of the wind turbine pile-barrel composite foundation. The flexible collar 35 can be made of a flexible material such as rubber or silicone.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A barrel guide pulley structure for a wind power pile-barrel composite foundation, characterized by: The barrel body guide wheel structure is used on the inner barrel wall of the barrel body, and the barrel body guide wheel structure is used to abut against the steel pipe pile (1); the barrel body guide wheel structure includes a plurality of guide wheel assemblies (3), and the plurality of guide wheel assemblies (3) are arranged in an annular space; the guide wheel assembly (3) includes two guide plates (31) and a pulley (32), the guide plates (31) are arranged vertically, the guide plates (31) are used to be welded and fixed to the inner barrel wall of the barrel body, the pulley (32) is arranged between the two guide plates (31), the pulley (32) is rotatably connected to the two guide plates (31), and the pulley (32) is used to abut against the steel pipe pile (1).

2. The barrel guide pulley (32) structure for a wind power pile-barrel composite foundation according to claim 1, characterized in that: In the vertical direction, the distance between the guide plate (31) and the inner barrel wall of the barrel body decreases from the middle to both sides.

3. The barrel guide pulley (32) structure for the wind power pile-barrel composite foundation according to claim 2 is characterized in that: The guide wheel assembly (3) further comprises a plurality of reinforcing ribs (33), one side of the reinforcing ribs (33) being welded and fixed to the guide plate (31), and the other side of the reinforcing ribs (33) being used for being welded and fixed to the inner barrel wall of the barrel body.

4. The barrel guide pulley (32) structure for a wind power pile-barrel composite foundation according to claim 1, characterized in that: Two pulleys (32) are provided, and the two pulleys (32) are spaced apart along the length direction of the barrel body.

5. The barrel guide pulley (32) structure for a wind power pile-barrel composite foundation according to claim 1, characterized in that: The guide wheel assembly (3) further comprises a flexible collar (35), wherein the flexible collar (35) is sleeved on the outer periphery of the pulley (32), and the flexible collar (35) is used to abut against the steel pipe pile (1).

6. The barrel guide pulley (32) structure for a wind power pile-barrel composite foundation according to claim 5, characterized in that: The guide wheel assembly (3) further includes a connecting member (34), wherein the connecting member (34) is disposed between the two guide plates (31), and the connecting member (34) is fixed to the guide plates (31) by welding.

7. The barrel guide pulley (32) structure for a wind power pile-barrel composite foundation according to claim 1, characterized in that: Along the length direction of the barrel body, the guide wheel assembly (3) is provided with two layers at intervals.

8. The barrel guide pulley (32) structure for a wind power pile-barrel composite foundation according to claim 1, characterized in that: The maximum distance between the pulley (32) and the inner wall of the barrel is 30 cm.