Assembly device for offshore wind power single pile foundation cage

Abstract

The invention relates to the technical field of offshore wind power single pile foundation construction, in particular to an offshore wind power single pile foundation cage assembling device which comprises a barrel and an annular top plate, the barrel and the annular top plate are connected through four connecting rods, the annular top plate is of an annular structure, and the barrel and the annular top plate are coaxially arranged; wherein fixing assemblies are arranged at the upper end and the lower end of the cylinder correspondingly, and the two fixing assemblies are jointly used for fixing the cylinder to a pile foundation; wherein a rotatable rotating cylinder is installed on the inner ring of the annular top plate, the top end of the rotating cylinder is fixedly sleeved with an upper annular plate, a lower annular plate is fixed to the bottom face of the annular top plate, and a pressing assembly is arranged on the upper annular plate. Rapid and accurate alignment of the sleeve cage and the pile foundation is achieved, the installation efficiency of the offshore wind power single pile foundation sleeve cage is improved, and a stable reference is provided for follow-up sleeve cage installation.

Description

Technical Field

[0001] The present invention relates to the technical field of monopile construction for offshore wind power, and more specifically, to an assembling device for the casing of a monopile foundation of offshore wind power. Background Art

[0002] The assembling device for the casing of a monopile foundation of offshore wind power is a key piece of equipment used in the installation process of the casing of a monopile foundation of offshore wind power. Its core function is to achieve high-precision docking and fixation of the various components of the casing through a structured design and a precise adjustment mechanism, thereby ensuring the structural stability and safety of the casing in a complex marine environment.

[0003] After retrieval, Chinese Patent with Publication No. CN218874236U discloses an integrated casing ring beam assembling device for offshore wind power, which includes a support base and a ring beam clamping structure placed on the support base. The support base also has a ring beam guiding structure, and the ring beam guiding structure guides and assembles adjacent two ring beam units; the ring beam clamping structure includes a plurality of equally circumferentially distributed clamping groups arranged on the support base; the ring beam guiding structure includes a plurality of equally circumferentially distributed columns arranged on the support base. The upper end of the column is vertically connected with a guiding plate, and the connection between the upper end of the column and the guiding plate is realized through a first electric push rod, and the connection between the column and the support base is realized through a second electric push rod. The guiding plate includes an arc portion that matches the outer side end of the ring beam unit and a guiding portion that is inclined outward at the upper end of the arc portion. The above solution has the advantages of improving the assembling accuracy and efficiency. However, when the above solution is actually used, there are still the following deficiencies:

[0004] Although the above solution can play a guiding role for the casing, there are obvious limitations, that is, the angle of the casing cannot be adjusted, resulting in the need to manually adjust the position of the casing during the installation process so that the installation holes on the casing are aligned with the installation holes on the pile foundation. This method not only increases the operation difficulty and workload, but also may lead to low installation efficiency, and even affect the installation accuracy or cause subsequent problems due to inaccurate alignment.

[0005] Based on this, the present invention discloses an assembling device for the casing of a monopile foundation of offshore wind power. Summary of the Invention

[0006] To solve the problem of inconvenient installation of the casing proposed in the background art, the present invention provides an assembling device for the casing of a monopile foundation of offshore wind power, which includes a cylinder body and an annular top plate. The cylinder body and the annular top plate are connected by four connecting rods. The annular top plate is in an annular structure, and the cylinder body and the annular top plate are coaxially arranged;

[0007] Wherein, fixing components are arranged at both the upper and lower ends of the cylinder body, and the two fixing components are jointly used to fix the cylinder body on the pile foundation;

[0008] Wherein, a rotatable rotating cylinder is installed on the inner circle of the annular top plate. An upper annular plate is fixedly sleeved on the top end of the rotating cylinder. A lower annular plate is fixed on the bottom surface of the annular top plate. A pressing component is arranged on the upper annular plate, and a guiding component is arranged on the lower annular plate. The pressing component is used to fix the sleeve cage, and the guiding component is used to provide guidance for the sleeve cage;

[0009] Wherein, a hydraulic driving component is arranged on the annular top plate for driving the pressing component and the guiding component to operate;

[0010] Wherein, a rotating component is arranged on the annular top plate for driving the rotating cylinder to rotate. The rotating component includes a second hydraulic cylinder, a rack and a gear ring. The second hydraulic cylinder is installed on the annular top plate. The rack is fixed on the telescopic end of the second hydraulic cylinder. The gear ring is fixedly sleeved on the rotating cylinder, and the gear ring meshes with the rack;

[0011] As a further improvement of this technical solution, the fixing component includes four fixing structures, a lifting sleeve and a first hydraulic cylinder. The lifting sleeve is slidably sleeved on the cylinder body. The cross-sectional diameter of one end of the lifting sleeve is larger than that of the other end. The first hydraulic cylinder is installed on the outer peripheral surface of the cylinder body, and the telescopic end of the first hydraulic cylinder is connected to the lifting sleeve;

[0012] The four fixing structures are arranged at the end positions of the cylinder body. Each fixing structure includes a guiding sleeve and a sliding plate. The guiding sleeve is fixed on the cylinder body. The sliding plate is slidably arranged on the guiding sleeve. A first pressing plate is fixed at one end of the sliding plate, and a roller is fixed at the other end. A first cushion layer is bonded to the side surface of the first pressing plate. The sliding plate and the guiding sleeve are connected by a tension spring.

[0013] As a further improvement of this technical solution, the pressing component is composed of four pressing structures. Each pressing structure includes a first sealing cylinder, a first sliding plug, a first rod body and a second pressing plate. The first sealing cylinder is fixed on the upper annular plate. The first sliding plug is hermetically and slidably connected inside the first sealing cylinder. The first sliding plug and the first sealing cylinder are connected by a first spring. One end of the first rod body is connected to the first sliding plug, and the other end of the first rod body extends to the outside of the first sealing cylinder and is connected to the second pressing plate. A second cushion layer is bonded to the side surface of the second pressing plate.

[0014] As a further improvement of this technical solution, the guiding component is composed of four guiding structures. The guiding structure includes a second sealing cylinder, a second sliding plug and a second rod body. The second sealing cylinder is fixed on the lower annular plate. The second sliding plug is hermetically and slidably connected inside the second sealing cylinder. A second spring is connected between the second sliding plug and the second sealing cylinder. One end of the second rod body is connected to the second sliding plug, and the other end extends to the outside of the second sealing cylinder. A guiding member is provided at the end of the second rod body located outside the second sealing cylinder. The second sealing cylinder and the first sealing cylinder are connected and communicated through a connecting pipe. A pressure valve is installed on the connecting pipe. A drain pipe is provided on the second sealing cylinder, and a check valve is installed on the drain pipe.

[0015] As a further improvement of this technical solution, the guiding member includes a wheel frame, a wheel shaft, two wheel bodies and two adjusting members. The wheel frame is fixed at the end of the second rod body located outside the second sealing cylinder. The wheel shaft is rotatably installed on the wheel frame. The two wheel bodies are both slidably sleeved on the wheel shaft. A spline is fixed on the wheel shaft. Key grooves are provided on both of the two wheel bodies. Both of the two key grooves are clamped on the spline. Fixed rings are fixedly sleeved at both ends of the wheel shaft. Third springs are connected between the two fixed rings and the two wheel bodies respectively. The two adjusting members are respectively arranged at both ends of the wheel frame. The wheel body has a frustum-shaped structure.

[0016] As a further improvement of this technical solution, the adjusting member includes a fixed seat and an adjusting screw. The fixed seat is fixed on the wheel frame, and a threaded groove is provided on the fixed seat. The adjusting screw is threadedly sleeved on the fixed seat. A groove is provided at the end of the adjusting screw. A ball is arranged in the groove. The ball is in contact with the opposite wheel body.

[0017] As a further improvement of this technical solution, the hydraulic driving component includes an oil storage tank, an oil pump, a first oil supply pipe and two second oil supply pipes. The oil storage tank is fixed on the upper annular plate, and oil liquid is stored inside the oil storage tank. The oil pump is installed on the oil storage tank. The four first sealing cylinders are grouped in pairs. The two first sealing cylinders in the same group are connected and communicated through a second oil supply pipe. The two ends of the first oil supply pipe are respectively connected and communicated with the middle positions of the two second oil supply pipes. The inlet pipe of the oil pump is connected to the oil storage tank. The outlet end of the oil pump is connected to the middle position of the first oil supply pipe.

[0018] As a further improvement of this technical solution, both the first cushion layer and the second cushion layer are made of rubber material.

[0019] As a further improvement of this technical solution, the four pressing structures are circumferentially and arrayedly distributed, and the four guiding structures are circumferentially and arrayedly distributed.

[0020] As a further improvement of the technical solution, the one-way valve restricts the liquid to flow out only from the second sealing cylinder.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The present invention realizes the rapid and accurate alignment of the casing and the pile foundation, improves the installation efficiency of the casing of the single-pile foundation of the offshore wind turbine. Among them, the four first pressing plates are synchronously pressed against the pile foundation under the drive of the hydraulic cylinder, ensuring that the cylinder body and the pile foundation are strictly coaxial, providing a stable reference for the subsequent installation of the casing. This synchronous pressing mechanism not only avoids the errors of manual adjustment, but also greatly shortens the positioning time, especially suitable for the efficient construction requirements under the harsh offshore operation environment;

[0023] 2. The device realizes the automatic centering function of the casing. The oil pump drives the oil to be evenly distributed to the four first sealing cylinders, so that the four second pressing plates move synchronously and press the casing tightly, forcing the casing and the pile foundation to remain coaxial. This design eliminates the risk of the casing skewing during the traditional hoisting process, ensuring that the casing always moves along the correct path during the descent, protecting both the casing and the surface of the pile foundation, and laying a foundation for accurate alignment for the subsequent connection process;

[0024] 3. When the longitudinal ribs of the casing are aligned with the guide members, the hydraulic system pushes the frustum-shaped wheel body to clamp the ribs, forming a stable guiding channel. When the casing is lowered, the guide members continuously restrict its position to prevent swinging or deviation. The distance between the wheel bodies can be flexibly adjusted by the adjusting screw, and with the adaptive pressing force of the third spring, the device can adapt to the installation requirements of casings of different specifications, significantly expanding the versatility of the equipment;

[0025] 4. Through the hydraulic cylinder driving the rack and pinion transmission system, the connecting cylinder can drive the casing to rotate precisely until its installation hole is completely aligned with the pile foundation hole. This mechanized adjustment method not only saves heavy manual operations, but also greatly improves the alignment accuracy, effectively avoiding rework problems caused by hole position deviation, especially having more prominent advantages in the installation of large-size casings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the schematic diagram of the overall structure of the present invention Figure 1 ;

[0027] Figure 2 is the schematic diagram of the overall structure of the present invention Figure 2 ;

[0028] Figure 3 is Figure 3 the enlarged view of the structure at A of

[0029] Figure 4 is the schematic cross-sectional structure diagram of the present invention;

[0030] Figure 5 is Figure 4 an enlarged view of the structure at position B;

[0031] Figure 6 is a diagram showing the state of use of the present invention;

[0032] Figure 7 is a schematic diagram of the structure of the annular top plate, the pressing assembly and the guiding assembly Figure 1 ;

[0033] Figure 8 is a schematic diagram of the structure of the annular top plate, the pressing assembly and the guiding assembly Figure 2 ;

[0034] Figure 9 is a schematic diagram of the structure of the annular top plate, the pressing assembly and the guiding assembly Figure 3 ;

[0035] Figure 10 is a schematic diagram of the structure of the first sealing cylinder and the second sealing cylinder;

[0036] Figure 11 is a schematic diagram of the structure of the guiding member;

[0037] Figure 12 is a schematic diagram of the structure of the cage and the pile foundation in the prior art.

[0038] The meanings of the various reference numerals in the figure are as follows:

[0039] 1, cylinder body; 2, connecting rod; 3, annular top plate; 301, rotating cylinder; 302, upper annular plate; 303, lower annular plate; 41, guiding sleeve; 42, sliding plate; 43, first pressing plate; 44, first cushion layer; 45, tension spring; 46, roller; 47, lifting sleeve; 48, first hydraulic cylinder; 51, first sealing cylinder; 52, first sliding plug; 53, first rod body; 54, first spring; 55, second pressing plate; 56, second cushion layer; 61, second sealing cylinder; 62, second sliding plug; 63, second rod body; 64, second spring; 65, connecting pipe; 66, one-way valve; 67, drain pipe; 68, solenoid valve; 691, wheel frame; 692, wheel shaft; 693, wheel body; 694, fixing ring; 695, third spring; 696, fixing seat; 697, adjusting screw; 71, oil storage tank; 72, oil pump; 73, first oil supply pipe; 74, second oil supply pipe; 81, second hydraulic cylinder; 82, rack; 83, gear ring. Detailed implementation manners

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] The present invention provides an assembly device for a jacket of a monopile foundation for offshore wind power. Refer to Figures 1 - 12 as shown, which includes a cylinder 1 and an annular top plate 3. The cylinder 1 and the annular top plate 3 are connected by four connecting rods 2. The annular top plate 3 has an annular structure, and the cylinder 1 and the annular top plate 3 are coaxially arranged.

[0042] Fixing components are arranged at both the upper and lower ends of the cylinder 1. The two fixing components are jointly used to fix the cylinder 1 on the pile foundation. The fixing component includes four fixing structures, a lifting sleeve 47 and a first hydraulic cylinder 48. The lifting sleeve 47 is slidably sleeved on the cylinder 1. The cross-sectional diameter of one end of the lifting sleeve 47 is larger than that of the other end. The first hydraulic cylinder 48 is installed on the outer peripheral surface of the cylinder 1, and the telescopic end of the first hydraulic cylinder 48 is connected to the lifting sleeve 47. The four fixing structures are arranged at the end positions of the cylinder 1. Each fixing structure includes a guide sleeve 41 and a sliding plate 42. The guide sleeve 41 is fixed on the cylinder 1. The sliding plate 42 is slidably arranged on the guide sleeve 41. A first pressing plate 43 is fixed at one end of the sliding plate 42, and a roller 46 is fixed at the other end. A first cushion layer 44 is adhesively bonded to the side surface of the first pressing plate 43. The sliding plate 42 and the guide sleeve 41 are connected by a tension spring 45.

[0043] When the assembly device for the jacket of the monopile foundation for offshore wind power proposed by the present invention is in use, the staff first uses a lifting device to lift the annular top plate 3 so that the cylinder 1 is sleeved on the pile foundation. When the cylinder 1 is sleeved on the pile foundation, the staff controls the two first hydraulic cylinders 48 to operate the two fixing components. For the fixing component, when the first hydraulic cylinder 48 operates, it drives the lifting sleeve 47 to move. Refer to Figure 1 and Figure 2 as shown. Since the cross-sectional diameter of one end of the lifting sleeve 47 is larger than that of the other end, during the movement of the lifting sleeve 47, its inner circle will squeeze the four rollers 46. When the rollers 46 are squeezed, they can move and drive the sliding plate 42 to move. When the sliding plate 42 moves, the first pressing plate 43 moves accordingly. In summary, when the first hydraulic cylinder 48 drives the lifting sleeve 47 to move, under the squeezing action of the lifting sleeve 47, the four sliding plates 42 can move synchronously and approach the position of the pile foundation until the four first pressing plates 43 jointly press the pile foundation. Under the pressing action of the first pressing plate 43, the cylinder 1 is fixed on the pile foundation, and the cylinder 1 and the pile foundation remain in a coaxial state.

[0044] Refer toFigure 7 and Figure 8 As shown, a rotatable rotating cylinder 301 is installed on the inner circle of the annular top plate 3. An upper annular plate 302 is fixedly sleeved at the top end of the rotating cylinder 301. A lower annular plate 303 is fixed to the bottom surface of the annular top plate 3. A pressing assembly is arranged on the upper annular plate 302. The pressing assembly is used to fix the sleeve cage. The pressing assembly is composed of four pressing structures. The four pressing structures are circumferentially arrayed. Each pressing structure includes a first sealing cylinder 51, a first sliding plug 52, a first rod body 53 and a second pressing plate 55. The first sealing cylinder 51 is fixed on the upper annular plate 302. The first sliding plug 52 is hermetically and slidably connected inside the first sealing cylinder. A first spring 54 is connected between the first sliding plug 52 and the first sealing cylinder 51. One end of the first rod body 53 is connected to the first sliding plug 52. The other end of the first rod body 53 extends outside the first sealing cylinder 51 and is connected to the second pressing plate 55. A second cushion layer 56 is bonded to the side surface of the second pressing plate 55. Both the first cushion layer 44 and the second cushion layer 56 are made of rubber materials;

[0045] See Figure 7 As shown, a hydraulic driving assembly is arranged on the annular top plate 3 for driving the pressing assembly and the guiding assembly to operate. The hydraulic driving assembly includes an oil storage tank 71, an oil pump 72, a first oil supply pipe 73 and two second oil supply pipes 74. The oil storage tank 71 is fixed on the upper annular plate 302, and the oil storage tank 71 stores oil inside. The oil pump 72 is installed on the oil storage tank 71. The four first sealing cylinders 51 are grouped in pairs of two. The two first sealing cylinders 51 in the same group are connected and communicated through the second oil supply pipe 74. Both ends of the first oil supply pipe 73 are connected and communicated with the middle positions of the two second oil supply pipes 74. The inlet pipe of the oil pump 72 is connected to the oil storage tank 71. The outlet end of the oil pump 72 is connected to the middle position of the first oil supply pipe 73;

[0046] After fixing the position of the cylinder body 1, the staff uses a lifting device to lift the sleeve cage and pass the sleeve cage through the annular top plate 3. Refer to Figure 6 As shown, when the sleeve cage passes through the annular top plate 3, the staff uses the pressing assembly to adjust the position of the sleeve cage so that the sleeve cage moves to a position coaxial with the pile foundation, so as to accurately control the installation position of the sleeve cage. Specifically, the staff controls the operation of the oil pump 72. When the oil pump 72 operates, it pumps the oil in the oil storage tank 71 and pumps the oil into the first oil supply pipe 73. Then, the oil will enter the two second oil supply pipes 74 respectively through both ends of the first oil supply pipe 73 and finally enter the four first sealing cylinders 51 through the two second oil supply pipes 74. Refer to Figure 7As shown, since both ends of the first oil supply pipe 73 are respectively connected to the middle positions of two second oil supply pipes 74, the inlet pipe of the oil pump 72 is connected to the oil storage tank 71, and the outlet end of the oil pump 72 is connected to the middle position of the first oil supply pipe 73. Therefore, the hydraulic fluid will enter the four first sealing cylinders 51 synchronously, causing the four first pistons 52 to move synchronously. The first piston 52 moves to a position where it can drive the second pressing plate 55 to move through the first rod 53. In summary, when the hydraulic fluid is running, the four second pressing plates 55 move synchronously and approach the position of the sleeve cage until the four second pressing plates 55 jointly press the sleeve cage. Under the centering effect of the four second pressing plates 55, the sleeve cage is adjusted to a state coaxial with the pile foundation, completing the rapid adjustment of the position of the sleeve cage;

[0047] See Figure 8 As shown, a guiding assembly is arranged on the lower annular plate 303. The guiding assembly is composed of four guiding structures, and the four guiding structures are circumferentially arrayed. The guiding assembly is used to guide the sleeve cage. The guiding structure includes a second sealing cylinder 61, a second piston 62 and a second rod 63. The second sealing cylinder 61 is fixed on the lower annular plate 303. The second piston 62 is hermetically slidably connected inside the second sealing cylinder 61. The second piston 62 and the second sealing cylinder 61 are connected by a second spring 64. One end of the second rod 63 is connected to the second piston 62, and the other end extends outside the second sealing cylinder 61. A guiding member is arranged at the end of the second rod 63 outside the second sealing cylinder 61. The second sealing cylinder 61 and the first sealing cylinder 51 are connected by a connecting pipe 65. A pressure valve is installed on the connecting pipe 65. A drain pipe 67 is arranged on the second sealing cylinder 61, and a check valve 66 is installed on the drain pipe 67. The check valve 66 restricts the liquid to only flow out of the second sealing cylinder 61;

[0048] After adjusting the vertical position of the sleeve cage, the staff then adjusts the angle of the sleeve cage until the longitudinal ribs of the sleeve cage rotate to a position facing the four guiding members, as Figure 12 shown. A number of longitudinal ribs and a number of transverse ribs are arranged on the sleeve cage. When four of the longitudinal ribs respectively face the four guiding members, the staff controls the oil pump 72 to continue running. Since the second pressing plate 55 has already pressed the sleeve cage, the second pressing plate 55 and the first piston 52 cannot move further. However, with the pumping of the hydraulic fluid, the oil pressure inside the first sealing cylinder 51 gradually increases. When the oil pressure breaks through the threshold of the pressure valve, the hydraulic fluid in the first sealing cylinder 51 can enter the inside of the second sealing cylinder 61 through the connecting pipe 65 and push the second piston 62 to move. When the second piston 62 moves, it drives the guiding member to move through the second rod 63 until the guiding member contacts the longitudinal rib of the sleeve cage. For the guiding member, both of its two wheel bodies 693 are in a frustum shape structure. Therefore, the two wheel bodies 693 can provide a limit for the longitudinal rib of the sleeve cage to ensure the guiding effect of the four guiding members on the sleeve cage;

[0049] When the four guiding members contact the longitudinal ribs, the staff controls the oil pump 72 to run in reverse, so that the oil pump 72 draws the oil in the four first sealing cylinders 51 through the first oil supply pipe 73 and the two second oil supply pipes 74. When the oil in the first sealing cylinder 51 is drawn out, the first sliding plug 52 will reset under the action of the first spring 54, so that the second pressing plate 55 will reset accordingly until the four second pressing plates 55 are all separated from the sleeve cage. Without the pressing action of the sleeve cage, the sleeve cage can move downward. At this time, the staff uses a lifting device to control the sleeve cage to move downward until the sleeve cage is sleeved on the pile foundation. During the downward movement of the sleeve cage, several guiding members jointly provide a guiding function for the sleeve cage, so that the sleeve cage always maintains a coaxial state with the pile foundation during the downward movement. Through this design, it is not only convenient for the subsequent connection between the sleeve cage and the pile foundation, but also can avoid the collision between the sleeve cage and the pile foundation during the downward movement of the sleeve cage, playing a protective role for the sleeve cage and the pile foundation;

[0050] See Figure 9 As shown, a rotating assembly is provided on the annular top plate 3 for driving the rotating cylinder 301 to rotate. The rotating assembly includes a second hydraulic cylinder 81, a rack 82 and a gear ring 83. The second hydraulic cylinder 81 is installed on the annular top plate 3, the rack 82 is fixed to the telescopic end of the second hydraulic cylinder 81, the gear ring 83 is fixedly sleeved on the rotating cylinder 301, and the gear ring 83 meshes with the rack 82;

[0051] When the sleeve cage is assembled in place, the staff controls several solenoid valves 68 to make several solenoid valves 68 in the conducting state. When the solenoid valve 68 is conducting, the oil in the second sealing cylinder 61 can flow back to the oil storage tank 71 through the drain pipe 67, which makes several guiding members reset synchronously. Further, the staff controls the oil pump 72 to run forward again until several second pressing plates 55 jointly press the sleeve cage to perform secondary centering on the sleeve cage. Then the second hydraulic cylinder 81 is started, so that the second hydraulic cylinder 81 drives the rack 82 to move. When the rack 82 moves, it drives the gear ring 83 to rotate. When the gear ring 83 rotates, it will drive the connecting cylinder to rotate, so that the upper annular plate 302 and several pressing structures rotate accordingly. During this process, several pressing structures can jointly drive the sleeve cage to rotate until the mounting holes on the sleeve cage are aligned with the mounting holes on the pile foundation one by one, so as to facilitate the subsequent connection between the sleeve cage and the pile foundation. This adjustment method replaces the traditional manual control method and is convenient to operate;

[0052] See Figure 11As shown in the figure, the guide member includes a wheel frame 691, a wheel axle 692, two wheel bodies 693 and two adjusting members. The wheel frame 691 is fixed to one end of the second rod body 63 outside the second sealing cylinder 61. The wheel axle 692 is rotatably installed on the wheel frame 691. The two wheel bodies 693 are both slidably sleeved on the wheel axle 692. A spline is fixed on the wheel axle 692. Key grooves are formed on both of the two wheel bodies 693. Both of the two key grooves are clamped on the spline. Fixed rings 694 are fixedly sleeved on both ends of the wheel axle 692. Third springs 695 are connected between the two fixed rings 694 and the two wheel bodies 693 respectively. The two adjusting members are respectively arranged at both ends of the wheel frame 691. The wheel body 693 has a frustum-shaped structure. The adjusting member includes a fixed seat 696 and an adjusting screw 697. The fixed seat 696 is fixed on the wheel frame 691, and a threaded groove is formed on the fixed seat 696. The adjusting screw 697 is threadedly sleeved on the fixed seat 696. A groove is formed at the end of the adjusting screw 697. A ball is arranged in the groove. The ball is in contact with the opposite wheel body 693;

[0053] For the guide member, the staff can adjust it according to the size of the longitudinal ribs of the cage, so that the guide member can be applicable to cages of different specifications. Specifically, the staff can adjust the distance between the two wheel bodies 693 through the two adjusting members. Refer to Figure 11 As shown in the figure, before installing the cage, the staff can use tools to rotate the adjusting screw 697 to move the adjusting screw 697. When the adjusting screw 697 moves, it can push the wheel body 693 to move, so as to adjust the position of the wheel body 693. For the two wheel bodies 693, under the elastic force of the two third springs 695, the two wheel bodies 693 always have a tendency to move away from each other. Therefore, under the pushing action of the two adjusting screws 697, the positions of the two wheel bodies 693 will be fixed. In summary, the staff can adjust the positions of the two wheel bodies 693 by rotating the two adjusting screws 697, so that the two wheel bodies 693 can provide guidance for longitudinal ribs of different sizes. Further, a rotatable ball is arranged at the end of the adjusting screw 697. The ball is in contact with the wheel body 693. When the wheel body 693 rotates, the ball can reduce the friction between the adjusting screw 697 and the wheel body 693, and further reduce the wear between the two.

[0054] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembling device for a cage of a monopile foundation of an offshore wind turbine, characterized in that: It includes a cylinder body (1) and an annular top plate (3). The cylinder body (1) and the annular top plate (3) are connected by four connecting rods (2). The annular top plate (3) is in an annular structure, and the cylinder body (1) and the annular top plate (3) are coaxially arranged. Among them, fixing components are arranged at both the upper and lower ends of the cylinder body (1), and the two fixing components are jointly used to fix the cylinder body (1) on the pile foundation. Among them, a rotatable rotating cylinder (301) is installed inside the inner ring of the annular top plate (3). An upper annular plate (302) is fixedly sleeved at the top end of the rotating cylinder (301). A lower annular plate (303) is fixed to the bottom surface of the annular top plate (3). A pressing component is arranged on the upper annular plate (302), and a guiding component is arranged on the lower annular plate (303). The pressing component is used to fix the casing, and the guiding component is used to provide guidance for the casing. Among them, a hydraulic driving component is arranged on the annular top plate (3) to drive the pressing component and the guiding component to operate. Among them, a rotating component is arranged on the annular top plate (3) to drive the rotating cylinder (301) to rotate. The rotating component includes a second hydraulic cylinder (81), a rack (82), and a gear ring (83). The second hydraulic cylinder (81) is installed on the annular top plate (3). The rack (82) is fixed to the telescopic end of the second hydraulic cylinder (81). The gear ring (83) is fixedly sleeved on the rotating cylinder (301), and the gear ring (83) meshes with the rack (82).

2. The assembling device for the cage of the monopile foundation of offshore wind power according to claim 1, characterized in that: The fixing component includes four fixing structures, a lifting sleeve (47), and a first hydraulic cylinder (48). The lifting sleeve (47) is slidably sleeved on the cylinder body (1). The cross-sectional diameter of one end of the lifting sleeve (47) is larger than that of the other end. The first hydraulic cylinder (48) is installed on the outer peripheral surface of the cylinder body (1), and the telescopic end of the first hydraulic cylinder (48) is connected to the lifting sleeve (47). The four fixing structures are arranged at the end positions of the cylinder body (1). Each fixing structure includes a guiding sleeve (41) and a sliding plate (42). The guiding sleeve (41) is fixed on the cylinder body (1). The sliding plate (42) is slidably arranged on the guiding sleeve (41). A first pressing plate (43) is fixed to one end of the sliding plate (42), and a roller (46) is fixed to the other end. A first cushion layer (44) is bonded to the side surface of the first pressing plate (43). The sliding plate (42) and the guiding sleeve (41) are connected by a tension spring (45).

3. The assembling device for the sleeve cage of the monopile foundation of an offshore wind turbine according to claim 2, characterized in that: The pressing assembly is composed of four pressing structures. Each pressing structure includes a first sealing cylinder (51), a first sliding plug (52), a first rod body (53) and a second pressing plate (55). The first sealing cylinder (51) is fixed on the upper annular plate (302). The first sliding plug (52) is hermetically and slidably connected inside the first sealing cylinder. A first spring (54) is connected between the first sliding plug (52) and the first sealing cylinder (51). One end of the first rod body (53) is connected to the first sliding plug (52), and the other end of the first rod body (53) extends outside the first sealing cylinder (51) and is connected to the second pressing plate (55). A second cushion layer (56) is adhesively bonded to the side surface of the second pressing plate (55).

4. The assembling device for the jacket of the monopile foundation of offshore wind power according to claim 3, characterized in that: The guiding assembly is composed of four guiding structures. The guiding structure includes a second sealing cylinder (61), a second sliding plug (62) and a second rod body (63). The second sealing cylinder (61) is fixed on the lower annular plate (303). The second sliding plug (62) is hermetically and slidably connected inside the second sealing cylinder (61). A second spring (64) is connected between the second sliding plug (62) and the second sealing cylinder (61). One end of the second rod body (63) is connected to the second sliding plug (62), and the other end extends outside the second sealing cylinder (61). A guiding member is provided at the end of the second rod body (63) outside the second sealing cylinder (61). The second sealing cylinder (61) is connected to the first sealing cylinder (51) through a communicating pipe (65). A pressure valve is installed on the communicating pipe (65). A drain pipe (67) is provided on the second sealing cylinder (61), and a check valve (66) is installed on the drain pipe (67).

5. The assembling device of the jacket cage for the monopile foundation of offshore wind power according to claim 4, characterized in that: The guiding member includes a wheel frame (691), a wheel shaft (692), two wheel bodies (693) and two adjusting members. The wheel frame (691) is fixed at the end of the second rod body (63) outside the second sealing cylinder (61). The wheel shaft (692) is rotatably installed on the wheel frame (691). The two wheel bodies (693) are both slidably sleeved on the wheel shaft (692). A spline is fixed on the wheel shaft (692). Key grooves are provided on both of the two wheel bodies (693), and both of the two key grooves are clamped on the spline. Fixed rings (694) are fixedly sleeved at both ends of the wheel shaft (692). Third springs (695) are connected between the two fixed rings (694) and the two wheel bodies (693) respectively. The two adjusting members are respectively arranged at both ends of the wheel frame (691), and the wheel body (693) has a frustum-shaped structure.

6. The assembling device for the jacket of the monopile foundation of an offshore wind turbine according to claim 5, characterized in that: The adjusting member includes a fixed seat (696) and an adjusting screw (697). The fixed seat (696) is fixed on the wheel frame (691), and a threaded groove is provided on the fixed seat (696). The adjusting screw (697) is threadedly sleeved on the fixed seat (696). A groove is provided at the end of the adjusting screw (697), and a ball is arranged in the groove. The ball is in contact with the opposite wheel body (693).

7. The assembling device for the cage of the monopile foundation of the offshore wind turbine according to claim 4, characterized in that: The hydraulic drive assembly includes an oil storage tank (71), an oil pump (72), a first oil supply pipe (73) and two second oil supply pipes (74). The oil storage tank (71) is fixed on the upper annular plate (302), and the oil storage tank (71) stores oil inside. The oil pump (72) is installed on the oil storage tank (71). The four first sealing cylinders (51) are grouped in pairs, and the two first sealing cylinders (51) in the same group are connected through the second oil supply pipe (74). The two ends of the first oil supply pipe (73) are respectively connected to the middle positions of the two second oil supply pipes (74). The inlet pipe of the oil pump (72) is connected to the oil storage tank (71), and the outlet end of the oil pump (72) is connected to the middle position of the first oil supply pipe (73).

8. The assembling device for the cage of the monopile foundation of the offshore wind turbine according to claim 3, characterized in that: Both the first cushion layer (44) and the second cushion layer (56) are made of rubber material.

9. The assembling device for the sleeve cage of the monopile foundation of an offshore wind turbine according to claim 1, characterized in that: The four pressing structures are circumferentially arrayed, and the four guiding structures are circumferentially arrayed.

10. The assembling device for the jacket of the monopile foundation of an offshore wind turbine according to claim 4, characterized in that: The one-way valve (66) restricts the liquid to only flow out of the second sealing cylinder (61).

Images