CN108166521B - Leveling device and leveling method for single pile foundation in offshore wind power equipment - Google Patents
Leveling device and leveling method for single pile foundation in offshore wind power equipment Download PDFInfo
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- CN108166521B CN108166521B CN201810197232.9A CN201810197232A CN108166521B CN 108166521 B CN108166521 B CN 108166521B CN 201810197232 A CN201810197232 A CN 201810197232A CN 108166521 B CN108166521 B CN 108166521B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
A leveling device and a leveling method for a single pile foundation in offshore wind power equipment. Relates to the field of offshore wind power equipment, in particular to improvement of a leveling device of a single pile foundation. The leveling device and the leveling method for the single pile foundation in the offshore wind power equipment are exquisite in structure, good in stability, simple to operate, long in service life, good in using effect and capable of being repeatedly used. The second fixing seat is provided with an annular accommodating groove, and the outer wall of the second push rod is fixedly connected with a rotary table which is matched with the annular accommodating groove. The synchronous rotating structure is as follows: the end face of the first push rod, which is opposite to the leveling block, is provided with a slot, the section of the slot is polygonal, one end of the second push rod extends into the slot, and the end is polygonal and matched with the slot. The invention has the advantages of good stability, simple operation, long service life, good use effect and reusability on the whole.
Description
Technical Field
The invention relates to the field of offshore wind power equipment, in particular to an improvement of a leveling device of a single pile foundation.
Background
At present, the single pile foundation type offshore wind power equipment is used as the most common offshore wind power equipment and has the most wide application range, however, as shown in fig. 1-2, the connection position of the single pile foundation and a foundation platform is extremely easy to crack and break after a long time, so that deflection is generated under the action of external force, and great influence is brought to the use and support of the offshore wind power equipment. In this regard, the national intellectual property office announces a chinese patent entitled "a device and method for leveling foundation ring of wind turbine generator set" and application number "201510609905.3" on day 2 and 9 of 2018, and discloses a leveling device for leveling by using plate components.
However, after practical application, people find that the equipment is not effectively applicable to offshore wind power equipment because of large stress and large corrosion in seawater. Particularly, the fasteners in the leveling device cannot be conveniently operated and controlled in the seabed, and the use difficulty is high; 2. the leveling device needs to be left in the sea water after being used, and the service life is extremely short; 3. the leveling device is extremely difficult to keep in the original state after long-term stress, and has extremely poor use effect.
Disclosure of Invention
Aiming at the problems, the invention provides the leveling device and the leveling method for the single pile foundation in the offshore wind power equipment, which have the advantages of exquisite structure, good stability, simple operation, long service life, good using effect and reusability.
The technical scheme of the invention is as follows: the offshore wind power equipment comprises a single pile foundation and a foundation platform, wherein the bottom end of the single pile foundation extends into the foundation platform and is fixedly connected with the foundation platform;
four positioning grooves and annular grooves outside the four positioning grooves are also formed in the top surface of the basic platform;
the leveling device comprises four leveling blocks, four driving components and a main driving ring, wherein the bottom of the main driving ring is slidably inserted into the annular groove, and a plurality of bevel teeth are arranged on the top surface of the main driving ring; the bottoms of the four driving components are respectively detachably inserted into the four positioning grooves, the four leveling blocks are arc-shaped with the central angle smaller than 45 degrees, and the diameter of the arc of the inner wall of each leveling block is equal to the outer diameter of the single pile foundation;
the driving assembly comprises a fixed table, a first fixed seat, a second fixed seat, a first push rod, a second push rod and a bevel gear, wherein the fixed table is detachably inserted into the positioning groove, the first fixed seat and the second fixed seat are fixedly connected to the top surface of the fixed table, the first push rod is arranged in the first fixed seat in a penetrating manner and is in threaded connection with the first fixed seat, and the leveling block is detachably connected to one end of the first push rod; the second push rod is arranged in the second fixing seat in a penetrating way and is rotatably connected with the second fixing seat, and one end of the second push rod is inserted into one side, far away from the leveling block, of the first push rod and is connected with the first push rod through a synchronous rotating structure; the bevel gear is fixedly connected to the end face, far away from the first push rod, of the second push rod and meshed with the bevel gear on the top surface of the main driving ring, and the bevel gear, the second push rod and the first push rod are coaxial.
The main drive ring comprises a plurality of arc-shaped drive blocks, and drive plates are respectively arranged at two ends of the outer wall of each drive block, so that adjacent drive blocks are detachably connected through the drive plates at the outer sides.
The leveling block is provided with a slot on the end surface facing away from the single pile foundation, and one end of the first push rod extends into the slot.
The second fixing seat is provided with an annular accommodating groove, and the outer wall of the second push rod is fixedly connected with a rotary table which is matched with the annular accommodating groove.
The synchronous rotating structure is as follows: the end face of the first push rod, which is opposite to the leveling block, is provided with a slot, the section of the slot is polygonal, one end of the second push rod extends into the slot, and the end is polygonal and matched with the slot.
The fixed table is a liftable platform, and a liftable backing ring is arranged at the bottom of the main driving ring.
Leveling is carried out according to the following steps:
1) And (3) leak repairing: injecting concrete at the cracking and breakage positions of the single pile foundation;
2) And (3) arranging a leveling device:
2.1 Completing the connection of all the components in the driving assembly, and installing a leveling block at one end of the first push rod;
2.2 Placing the primary drive ring into the annular groove;
2.3 A driving assembly provided with a leveling block is sequentially arranged in the four positioning grooves;
3) Pushing the main driving ring: the main driving ring is pushed to rotate by a plurality of underwater propellers, so that four leveling blocks are fed simultaneously to level a single pile foundation;
4) Arranging concrete: arranging concrete among the single pile foundation, the leveling block and the foundation platform so as to reestablish the fixed connection between the single pile foundation and the foundation platform;
5) And (3) removing the equipment: disconnecting the first push rod from the leveling block, disconnecting the fixing table from the positioning groove, and finally sequentially removing the driving assemblies and the main driving ring; and (5) finishing.
When the invention is used, after the single pile foundation is cracked, damaged and leaked, the active driving ring is driven by the plurality of underwater propellers at the same time, so that the active driving ring rotates around the self axis, the push rod II can be driven to rotate around the self axis under the action of the bevel gear, the push rod II is driven to rotate and axially feed under the influence of the synchronous rotating structure, and finally the leveling block can be driven to do linear motion; and the simultaneous movement of the plurality of leveling blocks finally drives the axle center of the single pile foundation to return to the initial position, thereby realizing the leveling action of the single pile foundation. After leveling, the fixed connection among the single pile foundation, the leveling blocks and the foundation platform can be completed again by means of concrete, so that the fixed connection between the single pile foundation and the foundation platform is reestablished. Finally, the driving assembly and the main driving ring are withdrawn, so that the single pile foundation can be kept stable, and the service life is longer without being influenced by the driving assembly. The invention has the advantages of good stability, simple operation, long service life, good use effect and reusability on the whole.
Drawings
Figure 1 is a schematic diagram of the background art of the present case,
figure 2 is a schematic diagram of a background art of the present invention,
figure 3 is a reference view of the state of use of the leveling device in this case,
figure 4 is a top view of the leveling device in this case,
FIG. 5 is a schematic illustration of the drive assembly and the primary drive ring in this case with the drive assembly and the primary drive ring removed;
in the figure, 1 is a single pile foundation, 2 is a foundation platform, 3 is a leveling block, 30 is a slot, 4 is a driving assembly, 40 is a fixed table, 41 is a fixed seat I, 42 is a fixed seat II, 43 is a push rod I, 44 is a push rod II, 440 is a turntable, 45 is a bevel gear, 5 is a main driving ring, 51 is a driving block, and 52 is a driving plate.
Detailed Description
The offshore wind power equipment comprises a single pile foundation 1 and a foundation platform 2, wherein the bottom end of the single pile foundation 1 extends into the foundation platform 2 and is fixedly connected with the foundation platform 2;
four positioning grooves and annular grooves outside the four positioning grooves are also formed in the top surface of the base platform 2;
the leveling device comprises four leveling blocks 3, four driving assemblies 4 and a main driving ring 5, wherein the bottom of the main driving ring 5 is slidably inserted into the annular groove, and a plurality of bevel teeth are arranged on the top surface of the main driving ring 5; the bottoms of the four driving assemblies 4 are respectively detachably inserted into the four positioning grooves, the four leveling blocks 3 are arc-shaped with the central angles smaller than 45 degrees, and the diameter of the arc of the inner wall of each leveling block is equal to the outer diameter of the single pile foundation 1;
the driving assembly 4 comprises a fixed table 40, a first fixed seat 41, a second fixed seat 42, a first push rod 43, a second push rod 44 and a bevel gear 45, wherein the fixed table 40 is detachably inserted into the positioning groove, the first fixed seat 41 and the second fixed seat 42 are fixedly connected to the top surface of the fixed table 40, the first push rod 43 is arranged in the first fixed seat 41 in a penetrating manner and is in threaded connection with the first fixed seat 41, and the leveling block 3 is detachably connected to one end of the first push rod 43; the second push rod 44 is inserted into the second fixing seat 42 and is rotatably connected with the second fixing seat 42, and one end of the second push rod 44 is inserted into one side of the first push rod 43 away from the leveling block 3 and is connected with the first push rod 43 through a synchronous rotation structure; the bevel gear 45 is fixedly connected to the end face, far away from the first push rod 43, of the second push rod 44 and meshed with the bevel gear on the top surface of the main driving ring 5, and the bevel gear 45, the second push rod 44 and the first push rod 43 are coaxial. When the device is used, after the single pile foundation is cracked and damaged and leaked, the active driving ring is driven by the plurality of underwater propellers simultaneously, so that the active driving ring rotates around the self axis, the push rod II can be driven to rotate around the self axis under the action of the bevel gear, the push rod II is driven to rotate and axially feed under the influence of the synchronous rotating structure, and finally the leveling block can be driven to do linear motion; and the simultaneous movement of the plurality of leveling blocks finally drives the axle center of the single pile foundation to return to the initial position, thereby realizing the leveling action of the single pile foundation. After leveling, the fixed connection among the single pile foundation, the leveling blocks and the foundation platform can be completed again by means of concrete, so that the fixed connection between the single pile foundation and the foundation platform is reestablished. Finally, the driving assembly and the main driving ring are withdrawn, so that the single pile foundation can be kept stable, and the service life is longer without being influenced by the driving assembly. The invention has the advantages of good stability, simple operation, long service life, good use effect and reusability on the whole.
The main driving ring 5 is composed of a plurality of arc-shaped driving blocks 51, and driving plates 52 are respectively arranged at two ends of the outer wall of each driving block 51, so that adjacent driving blocks 51 are detachably connected through the driving plates 52 at the outer side. On the one hand, the detachable connection of the adjacent driving plates can be completed by means of bolts and other parts; on the other hand, the driving device can drive a plurality of driving plates simultaneously by means of a plurality of power devices such as underwater propellers and the like, so that the main driving ring is conveniently, labor-saving and efficiently driven to rotate.
The end face of the leveling block 3, which is away from the single pile foundation, is provided with a slot 30, and one end of the first push rod 43 extends into the slot 30. Therefore, when the push rod rotates and axially displaces, the leveling block can be pushed to perform efficient leveling action.
An annular accommodating groove is formed in the second fixing seat 42, and a turntable 440 adapted to the annular accommodating groove is fixedly connected to the outer wall of the second push rod 44. Therefore, the rotatable connection between the second push rod and the second fixed seat is realized, the second push rod can only perform high-efficiency rotary motion relative to the second fixed seat, and the bevel gear can be ensured to keep a continuous meshing state with the bevel gear on the main driving ring in the use process.
The synchronous rotating structure is as follows: the end face of the first push rod, which is opposite to the leveling block, is provided with a slot, the section of the slot is polygonal, one end of the second push rod extends into the slot, and the end is polygonal and matched with the slot. Therefore, the second push rod with the end head in a polygonal prism shape can achieve better and stable torque transmission between the second push rod and the first push rod.
The fixed table is a liftable platform, and a liftable backing ring is arranged at the bottom of the main driving ring. Therefore, when the leakage is repaired and leveled for many times, the height of the leveling block is changed, so that the leveling block can directly contact the single pile foundation every time, and further the convenient leveling of the single pile foundation is realized.
Leveling is carried out according to the following steps:
1) And (3) leak repairing: injecting concrete at the cracking and breakage positions of the single pile foundation;
2) And (3) arranging a leveling device:
2.1 Completing the connection of all the components in the driving assembly, and installing a leveling block at one end of the first push rod;
2.2 Placing the primary drive ring into the annular groove;
2.3 A driving assembly provided with a leveling block is sequentially arranged in the four positioning grooves;
3) Pushing the main driving ring: the main driving ring is pushed to rotate by a plurality of underwater propellers, so that four leveling blocks are fed simultaneously to level a single pile foundation;
4) Arranging concrete: arranging concrete among the single pile foundation, the leveling block and the foundation platform so as to reestablish the fixed connection between the single pile foundation and the foundation platform;
5) And (3) removing the equipment: disconnecting the first push rod from the leveling block, disconnecting the fixing table from the positioning groove, and finally sequentially removing the driving components and the main driving ring, as shown in fig. 5; and (5) finishing.
Therefore, the method realizes the efficient leveling of the single pile foundation and has the advantages of clear logic, ordered steps, simplicity, easiness in operation and the like.
Claims (5)
1. The leveling method of the single pile foundation in the offshore wind power equipment based on the leveling device comprises the single pile foundation and a foundation platform, wherein the bottom end of the single pile foundation extends into the foundation platform and is fixedly connected with the foundation platform; it is characterized in that the method comprises the steps of,
four positioning grooves and annular grooves outside the four positioning grooves are also formed in the top surface of the basic platform;
the leveling device comprises four leveling blocks, four driving components and a main driving ring, wherein the bottom of the main driving ring is slidably inserted into the annular groove, and a plurality of bevel teeth are arranged on the top surface of the main driving ring; the bottoms of the four driving components are respectively detachably inserted into the four positioning grooves, the four leveling blocks are arc-shaped with the central angle smaller than 45 degrees, and the diameter of the arc of the inner wall of each leveling block is equal to the outer diameter of the single pile foundation;
the driving assembly comprises a fixed table, a first fixed seat, a second fixed seat, a first push rod, a second push rod and a bevel gear, wherein the fixed table is detachably inserted into the positioning groove, the first fixed seat and the second fixed seat are fixedly connected to the top surface of the fixed table, the first push rod is arranged in the first fixed seat in a penetrating manner and is in threaded connection with the first fixed seat, and the leveling block is detachably connected to one end of the first push rod; the second push rod is arranged in the second fixing seat in a penetrating way and is rotatably connected with the second fixing seat, and one end of the second push rod is inserted into one side, far away from the leveling block, of the first push rod and is connected with the first push rod through a synchronous rotating structure; the bevel gear is fixedly connected to the end face, far away from the first push rod, of the second push rod and meshed with the bevel gear on the top surface of the main driving ring, and the bevel gear, the second push rod and the first push rod are coaxial;
leveling is carried out according to the following steps:
1) And (3) leak repairing: injecting concrete at the cracking and breakage positions of the single pile foundation;
2) And (3) arranging a leveling device:
2.1 Completing the connection of all the components in the driving assembly, and installing a leveling block at one end of the first push rod;
2.2 Placing the primary drive ring into the annular groove;
2.3 A driving assembly provided with a leveling block is sequentially arranged in the four positioning grooves;
3) Pushing the main driving ring: the main driving ring is pushed to rotate by a plurality of underwater propellers, so that four leveling blocks are fed simultaneously to level a single pile foundation;
4) Arranging concrete: arranging concrete among the single pile foundation, the leveling block and the foundation platform so as to reestablish the fixed connection between the single pile foundation and the foundation platform;
5) And (3) removing the equipment: disconnecting the first push rod from the leveling block, disconnecting the fixing table from the positioning groove, and finally sequentially removing the driving assemblies and the main driving ring; finishing;
the main drive ring comprises a plurality of arc-shaped drive blocks, and drive plates are respectively arranged at two ends of the outer wall of each drive block, so that adjacent drive blocks are detachably connected through the drive plates at the outer sides.
2. The leveling method for the single pile foundation in the offshore wind power equipment based on the leveling device, which is disclosed in claim 1, is characterized in that a slot is arranged on the end face of the leveling block, which is away from the single pile foundation, and one end of the first push rod extends into the slot.
3. The leveling method of the single pile foundation in the offshore wind power equipment based on the leveling device according to claim 1, wherein the second fixing seat is provided with an annular accommodating groove, and a turntable matched with the annular accommodating groove is fixedly connected to the outer wall of the second push rod.
4. The leveling method for the single pile foundation in the offshore wind power equipment based on the leveling device according to claim 1, wherein the synchronous rotating structure is as follows: the end face of the first push rod, which is opposite to the leveling block, is provided with a slot, the section of the slot is polygonal, one end of the second push rod extends into the slot, and the end head of the second push rod is polygonal and matched with the slot.
5. The leveling method of the single pile foundation in the offshore wind power equipment based on the leveling device according to claim 1, wherein the fixed table is a liftable platform, and a liftable backing ring is arranged at the bottom of the main driving ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810197232.9A CN108166521B (en) | 2018-03-10 | 2018-03-10 | Leveling device and leveling method for single pile foundation in offshore wind power equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810197232.9A CN108166521B (en) | 2018-03-10 | 2018-03-10 | Leveling device and leveling method for single pile foundation in offshore wind power equipment |
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| CN108166521A CN108166521A (en) | 2018-06-15 |
| CN108166521B true CN108166521B (en) | 2023-09-08 |
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| CN113605439B (en) * | 2021-08-06 | 2023-06-27 | 江苏富源广建设发展有限公司 | Lattice steel bearing platform type tower crane foundation |
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| CN202390840U (en) * | 2011-12-12 | 2012-08-22 | 江苏久工重型机械股份有限公司 | Pile guide component of pile clamping box of static pile press |
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