A pile gripper for installing extra-large diameter and large rectification force wind power monopiles

Abstract

The present application discloses a pile gripper for installing a wind power single pile with an ultra-large diameter and a large deviation correction force, which is applied to the technical field of pile grippers. Compared with the prior art, the clamping rods among the multiple pile gripping rods are driven by the hydraulic rods so that the clamping rods can clamp and fix the foundation pile body. Since the length of the clamping rods is adjustable, it can adapt to the foundation pile body with an ultra-large diameter, and has high applicability. At the same time, the elastic pressure-bearing airbag between the clamping rods and the hydraulic rods will be compressed when it is subjected to force, so the gas blowing plate will drive the movable bite block to rotate, so that the movable bite block rotates from the first pile gripping arm to the second pile gripping arm, so that when the movable bite block enters the bite groove, the movable bite column can be automatically locked with the bite groove to realize automatic fixation, thereby automatically engaging the free ends of the first pile gripping arm and the second pile gripping arm, effectively ensuring the bite force of the free ends of the first pile gripping arm and the second pile gripping arm, achieving a firm and effective clamping effect, and greatly increasing the deviation correction force.

Description

Technical Field

[0001] The present application relates to the technical field of pile grippers, and in particular to a pile gripper used for installing a wind power single pile with an ultra-large diameter and a large deviation-correcting force. Background Art

[0002] Using wind power to generate electricity is very environmentally friendly and has huge wind energy reserves, so it is increasingly receiving attention from countries around the world.

[0003] At present, the installation of foundation piles is usually completed by using a pile gripper, which includes a gripping arm and a hydraulic system for controlling the gripping arm to be tightened. The foundation pile is hoisted into the specified position of the pile gripper by a crane, and the hydraulic system is controlled to tighten the gripping arm to fix the foundation pile for installation. Since the gripping arm of the pile gripper only relies on the driving force of the hydraulic system to tighten and hold the foundation pile, the free end of the gripping arm is not firmly engaged, resulting in insufficient holding force.

[0004] Therefore, the applicant proposed a conjecture that when the arm is clamping the foundation pile, if the free end of the arm can be automatically engaged, the problem of insufficient clamping force of the arm can be effectively avoided. Based on this conjecture, the applicant proposed a pile clamp for the installation of a single wind power pile with extra-large diameter and large correction force. Summary of the invention

[0005] The purpose of the present application is to enable the free end of the holding arm to automatically engage when the holding arm is holding the foundation pile, so as to effectively avoid the problem of insufficient holding force of the holding arm. Compared with the prior art, a pile holding device for installing a wind power single pile with a large diameter and large deviation correction force is provided. The holding rods among the multiple pile holding rods are driven by the hydraulic rod so that the holding rods can hold and fix the foundation pile body. Since the length of the holding rods is adjustable, it can adapt to the foundation pile body with a large diameter, and has high applicability. At the same time, the elastic pressure airbag between the holding rod and the hydraulic rod will be compressed when it is subjected to force, so the gas blowing plate will drive the movable engaging block to rotate, so that the movable engaging block rotates from the first pile holding arm to the second pile holding arm, so that when the movable engaging block enters the engaging groove, the movable engaging column can be automatically locked with the engaging groove to realize automatic fixation, thereby automatically engaging the free ends of the first pile holding arm and the second pile holding arm, effectively ensuring the engaging force of the free ends of the first pile holding arm and the second pile holding arm, achieving a firm and effective holding effect, greatly increasing the deviation correction force, and having a good use effect.

[0006] A pile gripper for the installation of a wind power monopile with an ultra-large diameter and a large rectifying force, comprising a foundation pile body and a pile gripper body for clamping the foundation pile body. A plurality of pile gripper rods for clamping the foundation pile body are fixedly installed at the top of the pile gripper body. Elastic compression air bags are installed in the pile gripper rods. The pile gripper body comprises two symmetrically distributed first pile gripper arms and second pile gripper arms. A movable engaging block is provided at the free end of the first pile gripper arm. Power driving disks are rotatably connected to both ends of the movable engaging block. One end of the power driving disk away from the movable engaging block is fixed to the first pile gripper arm. A engaging groove matching the movable engaging block is formed at the free end of the second pile gripper arm. A movable engaging column for engaging with the movable engaging block is movably provided on the inner wall of the engaging groove. An elastic expansion air bag is connected above the movable engaging column. Both the power driving disk and the elastic expansion air bag are communicated with the elastic compression air bag through hoses.

[0007] Optionally, a longitudinal sliding groove for accommodating the sliding of the movable engaging column is formed on the second pile gripper arm. An engaging groove matching the movable engaging column is formed on the outer side of the movable engaging block.

[0008] Optionally, a compression spring is fixed between the inside of the longitudinal sliding groove and the movable engaging column. The top of the elastic expansion air bag abuts against the inner wall of the longitudinal sliding groove, and the bottom of the elastic expansion air bag abuts against the movable engaging column.

[0009] Optionally, the top of the engaging groove is in a trumpet shape. An elastic contact layer is fixed on the inner wall of the engaging groove. A contact switch is fixed on the elastic contact layer. A warning light electrically connected to the contact switch is installed on the outer side of the pile gripper body.

[0010] Optionally, a push block is fixed at the bottom of the elastic contact layer. A disassembly column is provided below the push block. The disassembly column is threadedly and sealedly connected to the engaging groove.

[0011] Optionally, a flexible layer is fixed at the top of the disassembly column. Metal thorns are fixed at the bottom of the flexible layer.

[0012] Optionally, a thin film is provided below the metal thorns. Aluminum bicarbonate and water are filled in the thin film.

[0013] Optionally, an air outlet hole is formed on one side of the disassembly column. An air inlet hole communicating with the air outlet hole is formed in the engaging groove. A plurality of elastic buffer capsules communicating with the air inlet hole are fixed on the surface of the movable engaging block.

[0014] Optionally, a driving groove is formed inside the power driving disk. A gas blowing plate is rotatably connected to the driving groove. One end of the gas blowing plate is fixed to the movable engaging block. A torsion spring is fixedly connected between the power driving disk and the driving block. A hole is formed in the inner wall of the driving groove. The hole is communicated with the elastic compression air bag through a hose.

[0015] Optionally, the pile gripper rod comprises a hydraulic rod and a clamping rod. The clamping rod is slidably connected to the hydraulic rod. A gap is left between the clamping rod and the hydraulic rod. The elastic compression air bag is located in the gap.

[0016] Compared with the prior art, the advantages of this application are:

[0017] (1) The clamping rods among the multiple pile clamping rods are driven by the hydraulic rods so that the clamping rods can clamp and fix the foundation pile body. Since the length of the clamping rods is adjustable, they can adapt to foundation pile bodies with super-large diameters, and have high applicability. At the same time, the elastic pressure-bearing airbag between the clamping rods and the hydraulic rods will be compressed, so the gas blowing plate will drive the movable bite block to rotate, so that the movable bite block rotates from the first pile clamping arm to the second pile clamping arm, so that when the movable bite block enters the bite groove, the movable bite column can automatically lock with the bite groove to achieve automatic fixation, thereby automatically engaging the free ends of the first pile clamping arm and the second pile clamping arm, effectively ensuring the bite force of the free ends of the first pile clamping arm and the second pile clamping arm, achieving a firm and effective clamping effect, greatly increasing the correction force, and having a good use effect.

[0018] (2) When the pile holding rod is separated from the foundation pile body, the compression spring applies an upward thrust to the movable bite column, so that the movable bite column will be separated from the bite groove. Then the torsion spring will drive the movable bite block to rotate, so that the movable bite block is separated from the bite groove, realizing automatic separation without the need for manual operation by the staff.

[0019] (3) When the movable bite column is located in the bite groove, the bottom of the movable bite column will contact the contact switch. The contact switch will light up when it receives the signal. The staff can understand whether the movable bite block is engaged and fixed by observing the warning light, which is convenient for the staff to carry out maintenance in time.

[0020] (4) The elastic contact layer will be deformed after being squeezed by the movable bite column, thereby pushing the push block to squeeze the flexible layer. The metal needle inside the flexible layer will move downward to puncture the film. The gas enters into multiple elastic buffer capsules through the air outlet and air inlet holes, thereby forming a buffer layer on the surface of the movable bite block, thereby increasing the service life of the movable bite block. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0022] Figure 2 This is a schematic diagram of the top view of the structure of this application;

[0023] Figure 3 This is a schematic diagram of the connection structure between the movable bite block and the bite groove of the present application;

[0024] Figure 4 This is a schematic diagram of the front structure of the present application;

[0025] Figure 5 For this application Figure 4 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 6 Schematic structural diagram of the movable engaging block of the present application;

[0027] Figure 7 Schematic structural diagram of the movement structure of the gas blowing plate of the present application;

[0028] Figure 8 Schematic sectional view of the engaging groove of the present application;

[0029] Figure 9 Schematic structural diagram of the elastic contact layer under pressure of the present application;

[0030] Figure 10 Schematic structural diagram of the expansion of the elastic buffer capsule of the present application.

[0031] Description of the reference numerals in the figure:

[0032] 1. Pile gripper body; 2. Pile gripping rod; 3. Elastic compression airbag; 4. First pile gripping arm; 5. Second pile gripping arm; 6. Movable engaging block; 7. Power drive disc; 8. Movable engaging column; 9. Elastic expansion airbag; 10. Engaging groove; 11. Elastic contact layer; 12. Contact switch; 13. Demounting column; 14. Metal acupuncture needle; 15. Elastic buffer capsule; 16. Gas blowing plate. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0034] Embodiment 1:

[0035] The present application discloses a pile gripper for the installation of extra-large diameter and large deviation correction force wind power monopiles. Please refer to Figure 1-2 and Figure 5, including a foundation pile body and a pile gripper body 1 that clamps the foundation pile body. A plurality of pile gripper rods 2 for clamping the foundation pile body are fixedly installed at the top of the pile gripper body 1. An elastic compression airbag 3 is installed in the pile gripper rod 2. The pile gripper body 1 includes two symmetrically distributed first pile gripper arms 4 and second pile gripper arms 5. A movable engaging block 6 is provided at the free end of the first pile gripper arm 4. Both ends of the movable engaging block 6 are rotatably connected to a power drive disc 7. One end of the power drive disc 7 away from the movable engaging block 6 is fixed to the first pile gripper arm 4. A engaging groove matching the movable engaging block 6 is formed at the free end of the second pile gripper arm 5. An movable engaging post 8 that engages with the movable engaging block 6 is movably provided on the inner wall of the engaging groove. An elastic expansion airbag 9 is connected above the movable engaging post 8. Both the power drive disc 7 and the elastic expansion airbag 9 are communicated with the elastic compression airbag 3 through hoses.

[0036] Please refer to Figure 2-7 . A longitudinal sliding groove for accommodating the sliding of the movable engaging post 8 is formed on the second pile gripper arm 5. An engaging groove 10 matching the movable engaging post 8 is formed on the outer side of the movable engaging block 6. A compression spring is fixed between the inside of the longitudinal sliding groove and the movable engaging post 8. The top of the elastic expansion airbag 9 abuts against the inner wall of the longitudinal sliding groove, and the bottom of the elastic expansion airbag 9 abuts against the movable engaging post 8. A driving groove is formed inside the power drive disc 7. A gas blowing plate 16 is rotatably connected to the driving groove. One end of the gas blowing plate 16 is fixed to the movable engaging block 6. A torsion spring is fixedly connected between the power drive disc 7 and the driving block. A hole is formed on the inner wall of the driving groove, and the hole is communicated with the elastic compression airbag 3 through a hose. The pile gripper rod 2 includes a hydraulic rod and a clamping rod. The clamping rod is slidably connected to the hydraulic rod, and a gap is left between the clamping rod and the hydraulic rod. The elastic compression airbag 3 is located in the gap.

[0037] Specifically, when in use, the clamping rods in the plurality of pile clamping rods 2 are driven by the hydraulic rods so that the clamping rods can clamp and fix the foundation pile body. Since the length of the clamping rods is adjustable, it can adapt to foundation pile bodies with super-large diameters, and has high applicability. At the same time, the elastic pressure-bearing airbag 3 between the clamping rod and the hydraulic rod will be compressed, and the gas in the elastic pressure-bearing airbag 3 on the first pile clamping arm 4 will be transported to the driving groove through the hose and the hole. The thrust generated by the air pressure strength in the driving groove is greater than the torsion of the torsion spring, so the gas blowing plate 16 will drive the movable bite block 6 to rotate, so that the movable bite block 6 rotates from the first pile clamping arm 4 When the first pile holding arm 4 and the second pile holding arm 5 move to the second pile holding arm 5, the gas in the elastic pressure airbag 3 on the second pile holding arm 5 will be transported to the elastic expansion airbag 9 through the hose, and the elastic expansion airbag 9 will be deformed and squeeze the movable bite column 8 downward, so that when the movable bite block 6 enters the bite groove, the movable bite column 8 can be automatically locked with the bite groove 10 to achieve automatic fixation, thereby automatically biting the free ends of the first pile holding arm 4 and the second pile holding arm 5, effectively ensuring the biting force of the free ends of the first pile holding arm 4 and the second pile holding arm 5, achieving a firm and effective effect of holding, greatly increasing the correction force, and having a good use effect. It should be noted that the movable bite column 8 is inclined toward one side of the movable bite block 6, so that the movable bite column 8 can shrink and slide upward under the squeezing of the movable bite block 6, so that the movable bite block 6 will not be interfered when rotating.

[0038] Among them, when the pile holding rod 2 is separated from the foundation pile body, the compression spring applies an upward thrust to the movable bite column 8, so the movable bite column 8 will be separated from the bite groove 10, and then the torsion spring will drive the movable bite block 6 to rotate, so that the movable bite block 6 is separated from the bite groove, realizing automatic separation without manual operation by the staff, which is simple and convenient.

[0039] Embodiment 2:

[0040] This application discloses a pile gripper for installing a wind power monopile with a large diameter and large deviation correction force. Figure 8-10 The top of the bite groove 10 is trumpet-shaped, an elastic contact layer 11 is fixed to the inner wall of the bite groove 10, a contact switch 12 is fixed on the elastic contact layer 11, a warning light electrically connected to the contact switch 12 is installed on the outside of the pile gripper body 1, a push block is fixed to the bottom of the elastic contact layer 11, a disassembly column 13 is provided below the push block, the disassembly column 13 is threadedly sealed with the bite groove 10, a flexible layer is fixed to the top of the disassembly column 13, a metal needle 14 is fixed to the bottom of the flexible layer, a film is provided below the metal needle 14, and aluminum bicarbonate and water are filled in the film, an air outlet is provided on one side of the disassembly column 13, an air inlet connected to the air outlet is provided in the bite groove 10, and a plurality of elastic buffer capsules 15 connected to the air inlet are fixed on the surface of the movable bite block 6.

[0041] Specifically, when the movable bite column 8 is located in the bite groove 10, the bottom of the movable bite column 8 will contact the contact switch 12. When the contact switch 12 receives a signal, it will activate the warning light. The staff can understand whether the movable bite block 6 is bite-fixed by observing the warning light, which is convenient for the staff to perform maintenance in a timely manner. After being squeezed by the movable bite column 8, the elastic contact layer 11 will deform, thereby pushing the push block to squeeze the flexible layer. The metal thorn needles 14 inside the flexible layer will move downward to pierce the film. The aluminum bicarbonate and water in the film will react to generate a large amount of gas. The gas enters into multiple elastic buffer capsules 15 through the air outlet holes and air inlet holes. The volume of the elastic buffer capsules 15 increases, thereby forming a buffer layer on the surface of the movable bite block 6, playing a flexible buffering role for the collision received by the movable bite block 6, and further improving the service life of the movable bite block 6.

[0042] Among them, the top of the bite groove 10 is in a horn shape, thereby improving the portability of the insertion of the movable bite column 8; both the elastic contact layer 11 and the flexible layer are made of elastic rubber materials; a sandwich layer is provided inside the film to separate the aluminum bicarbonate and water so that they cannot react under normal conditions.

[0043] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution and its improvement concept of the present application, makes equivalent substitutions or changes, and should be covered by the protection scope of the present application.

Claims

1. A pile gripper for installing a wind power monopile with an ultra-large diameter and a large rectifying force, comprising a foundation pile body and a pile gripper body (1) for clamping the foundation pile body, characterized in that, A plurality of pile-holding rods (2) for holding the foundation pile are fixedly installed at the top of the pile-holding device body (1). An elastic compression airbag (3) is installed in the pile-holding rod (2). The pile-holding device body (1) includes two symmetrically distributed first pile-holding arms (4) and second pile-holding arms (5). A movable engaging block (6) is provided at the free end of the first pile-holding arm (4). Power driving discs (7) are rotatably connected to both ends of the movable engaging block (6). One end of the power driving disc (7) away from the movable engaging block (6) is fixed to the first pile-holding arm (4). A engaging groove matching the movable engaging block (6) is formed at the free end of the second pile-holding arm (5). A movable engaging column (8) engaging with the movable engaging block (6) is movably provided on the inner wall of the engaging groove. An elastic expansion airbag (9) is connected above the movable engaging column (8). Both the power driving disc (7) and the elastic expansion airbag (9) are communicated with the elastic compression airbag (3) through hoses; A longitudinal sliding groove for the movable engaging column (8) to slide is formed on the second pile-holding arm (5). An engaging groove (10) matching the movable engaging column (8) is formed on the outer side of the movable engaging block (6). A compression spring is fixed between the inside of the longitudinal sliding groove and the movable engaging column (8). The top of the elastic expansion airbag (9) abuts against the inner wall of the longitudinal sliding groove, and the bottom of the elastic expansion airbag (9) abuts against the movable engaging column (8); A driving groove is formed inside the power driving disc (7). A gas blowing plate (16) is rotatably connected to the driving groove. One end of the gas blowing plate (16) is fixed to the movable engaging block (6). A torsion spring is fixedly connected between the power driving disc (7) and the driving block. A hole is formed in the inner wall of the driving groove, and the hole is communicated with the elastic compression airbag (3) through a hose. The pile-holding rod (2) includes a hydraulic rod and a clamping rod. The clamping rod is slidably connected to the hydraulic rod. A gap is left between the clamping rod and the hydraulic rod. The elastic compression airbag (3) is located in the gap.

2. The pile gripper for installing a wind power monopile with an ultra-large diameter and a large rectifying force according to claim 1, characterized in that, The top of the engaging groove (10) is in a trumpet shape. An elastic contact layer (11) is fixed on the inner wall of the engaging groove (10). A contact switch (12) is fixed on the elastic contact layer (11). A warning light electrically connected to the contact switch (12) is installed on the outer side of the pile-holding device body (1).

3. A pile gripper for the installation of a wind power monopile with an ultra-large diameter and a large rectifying force according to claim 2, characterized in that, A push block is fixed to the bottom of the elastic contact layer (11). A disassembly column (13) is provided below the push block. The disassembly column (13) is threadedly sealed with the engaging groove (10).

4. A pile gripper for installing an extra-large diameter and large rectifying force wind power monopile according to claim 3, characterized in that, A flexible layer is fixed to the top of the disassembly column (13). A metal thorn (14) is fixed to the bottom of the flexible layer.

5. A pile gripper for installing an extra-large diameter and large rectification force wind power monopile according to claim 4, characterized in that, A thin film is provided below the metal thorn (14). The thin film is filled with aluminum bicarbonate and water.

6. The pile gripper for installing super-large diameter and large rectifying force wind power monopiles according to claim 3, characterized in that, An air outlet hole is formed on one side of the disassembly column (13). An air inlet hole communicated with the air outlet hole is formed in the engaging groove (10). A plurality of elastic buffer capsules (15) communicated with the air inlet hole are fixed on the surface of the movable engaging block (6).

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