Adjustable tubular pile gripper

Abstract

The utility model discloses an adjustable pipe pile gripper which comprises a frame body, worm wheels are rotatably installed in the periphery of the frame body, threaded rods are installed in the middles of the worm wheels in a threaded mode and penetrate through the two sides of a frame of the frame body, worms are rotatably installed in the frame of the frame body, the worms are meshed with the worm wheels, and the worm wheels are meshed with the worm rods. A gear is fixedly mounted at the top end of the worm, a gear ring is rotatably mounted on the frame and meshed with the gear, and a U-shaped plate is arranged at one end of the threaded rod. Through the arrangement of the worm gear, the threaded rod, the worm, the gear, the gear ring and other structures, the four idler wheels can be conveniently adjusted to move at the same time, guiding can be conveniently conducted according to pipe piles with different diameters, practicability is enhanced, and the application range is widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of wind power installation construction, specifically relates to an adjustable pipe pile gripper. BACKGROUND

[0002] WTIV is a professional ship for offshore wind farm installation. These ships play a key role in the positioning and fixing of wind turbine foundation piles. When pile driving work of wind power foundation piles is carried out, pile grippers are needed to ensure the perpendicularity of the foundation piles, so that verticality can be achieved during pile driving without inclination. The current equipment for fixing pile foundations, such as pipe pile grippers, has poor adjustability, especially in terms of adjusting between different pipe pile diameters, and usually needs to replace the pile gripper according to different diameter wind power pipe piles, which limits the application range of the equipment and reduces the efficiency of wind power installation work.

[0003] The existing pipe pile gripper usually manually replaces the corresponding pile gripper according to the diameter of the pipe pile, and then performs pile driving operation of the pipe column. The above replacement operation process is complicated and time-consuming. Moreover, according to different wind field pipe column design requirements, the existing equipment is designed for specific pipe pile size, and is difficult to be widely applied to different wind power projects. Especially when facing various pipe piles of different diameters, the adjustment complexity and applicability of the pile gripper are limited.

[0004] Therefore, there is an urgent need for an adjustable pipe pile gripper that can be adjusted according to different pipe pile diameters to solve the problem that the existing technology cannot be adjusted according to the pipe pile diameter and has a small application range. To improve the applicability and work efficiency of the wind power installation ship in offshore wind farm construction. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the problems existing in the prior art, and provides a new adjustable pipe column pile gripper. The adjustable pile gripper of the utility model can be adjusted according to the diameter of the pipe pile to adapt to pile driving work of wind power pipe columns of different pipe diameters.

[0006] In order to achieve the above invention purpose, the utility model provides the following technical scheme:

[0007] The adjustable pipe pile gripper comprises a frame, worm gears, a worm, gears and a tooth ring, the frame is rectangular, a worm gear is arranged at the inner side of each of the four side frames of the frame, a threaded rod is fixedly connected to the middle of the fixed worm gear through thread engagement, the threaded rod is telescopically arranged through the side frame of the frame, a worm is rotatably arranged on the frame, the worm is engaged with the worm gears to realize horizontal rotation conversion into vertical rotation, a gear is coaxially fixed to the top end of the worm, a rotatable tooth ring is arranged at the top end of the frame, the inner wall of the tooth ring is threadedly engaged with the four gears, a U-shaped plate is arranged at one end of the threaded rod in the frame, rollers are rotatably arranged in the U-shaped plate, the four rollers form a moving space for the pipe pile, a connecting plate is fixedly arranged at one side of the U-shaped plate, a guide rod is fixedly arranged at one side of the connecting plate, the guide rod is movably inserted into the frame, a supporting rod is fixedly arranged at one side of the frame, and a mounting plate is fixedly arranged at one side of the supporting rod.

[0008] Further, the reinforcing plate is triangularly shaped.

[0009] As a preferred embodiment, the reinforcing rod is fixedly arranged between the mounting plate and the supporting rod.

[0010] As a preferred embodiment, mounting holes are formed in both sides of the mounting plate.

[0011] As a preferred embodiment, a handle is fixedly arranged at the side end of the tooth ring, and a sponge pad is arranged on the outer surface of the handle.

[0012] Compared with the prior art, the adjustable pipe pile gripper has at least the following advantages:

[0013] (1) The adjustable pipe pile gripper is provided with the worm gears, the threaded rod, the worm, the gears and the tooth ring, the threaded rod is driven by the worm gears to move forward and backward, four rollers are simultaneously adjusted, the pipe pile can be guided according to different diameters, the practicability is enhanced, and the application range is improved.

[0014] (2) The connecting plate and the guide rod are arranged to guide and support the movement of the U-shaped plate, the reinforcing plate and the reinforcing rod are arranged to enhance the connection strength, and the handle is arranged to facilitate the rotation of the tooth ring.

[0015] (3) The adjustable pipe pile gripper of the utility model is arranged at the side of the workbench of the ship body and can be extended to the outside of the ship side, the workbench can adjust the height position of the gripper through the lifting device, the hoisted pipe pile is inserted into the gripper, the verticality of the pipe pile during piling is limited and controlled, and the installation operation of the wind power pipe pile with different pipe diameters can be realized by adjusting the size of the surrounding roller. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall structural schematic view of the adjustable pipe pile gripper of the utility model.

[0017] Figure 2 It is a frame section schematic view of the middle frame body of the adjustable pipe pile gripper of the utility model.

[0018] Figure 3 It is a worm and worm wheel connection structure schematic view of the adjustable pipe pile gripper of the utility model.

[0019] In the figure: 1, frame body; 2, worm wheel; 3, threaded rod; 4, worm; 5, gear; 6, gear ring; 7, U-shaped plate; 8, roller; 9, connecting plate; 10, guide rod; 11, support rod; 12, mounting plate; 13, reinforcing plate; 14, reinforcing rod; 15, mounting hole; 16, handle rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not used to limit the utility model.

[0021] The utility model aims at providing an adjustable pipe pile gripper which can be adjusted and guided according to the diameter of the pipe pile. In order to better understand the utility model, the following is described in detail by combining with the drawings and examples.

[0022] The utility model provides an adjustable pipe pile gripper, which aims at guiding and supporting the pipe pile with different pipe diameters, so that the pipe pile gripper applied to the wind power installation ship is more universal and convenient.

[0023] As shown in Figure 1 , Figure 2 and Figure 3 , the structure of the adjustable pipe pile gripper in the embodiment mainly comprises a frame body 1, the frame body 1 is a rectangular frame structure, and one rotatable worm wheel 2 is installed inside each of the four surrounding frames of the frame body 1, that is, there is one worm wheel 2 on each frame of the quadrilateral frame body 1, and a total of four worm wheels 2 are arranged.

[0024] A threaded rod 3 is threadedly installed at the middle position of the worm gear 2, passing through the side end of the frame 1. The threaded rod 3 is coaxially arranged with the worm gear 2, passing through the inside and outside of the frame 1, so that part of the threaded rod 3 is on the inside of the frame 1 and part of the threaded rod 3 is on the outside of the frame 1. The worm gear 2 and the threaded rod 3 are threadedly installed, that is, the inner side of the worm gear 2 has an internal thread that meshes with the external thread on the threaded rod 3. By rotating the worm gear 2 in its original position, the threaded rod 3 can move back and forth using the meshing internal and external threads.

[0025] The aforementioned frame 1 is rotatably mounted with worm gears 4. One worm gear 4 is vertically positioned on each of the four sides of the frame 1, with its bottom extending into the interior of the side frame. Inside the side frame, the worm gear 4 meshes with a worm wheel 2, enabling the conversion of rotation direction. A gear 5 is coaxially fixed at the top of each worm gear 4. A gear ring 6 is rotatably mounted on the top of the frame 1, meshing with the gear 5. Four identical gears 5 are arranged inside the gear ring 6 and threadedly engaged. Thus, rotation of the gear ring 6 simultaneously drives all four gears 5 to rotate, and the number of rotations is identical. This ensures that the extension and retraction distance of the threaded rod 3 is the same.

[0026] Since a U-shaped plate 7 is provided at one end of each threaded rod 3, the back-and-forth movement of the threaded rod 3 will drive the U-shaped plate 7 to move back and forth, thereby ensuring that the space enclosed by the four U-shaped plates 7 expands or shrinks proportionally. In addition, a roller 8 is rotatably installed inside each U-shaped plate 7. The roller 8 extends inward to reach the outer wall of the pipe pile, allowing the pipe pile to move up and down within the enclosed space of the U-shaped plates 7. The roller 8 provides rolling restraint, preventing any damage to the outer wall of the pipe pile and increasing smoothness.

[0027] A connecting plate 9 is fixedly installed on one side of each U-shaped plate 7. A guide rod 10 is fixedly installed on one side of the connecting plate 9. Each guide rod 10 passes through the frame 1 and is movably inserted into the frame 1. The guide rod 10 and the connecting plate 9 play a guiding and limiting role in the movement of the U-shaped plate 7, keeping the U-shaped plate 7 and the roller 8 at the same angle, avoiding rotation that affects stability when moving back and forth, and also preventing swaying when the threaded rod 3 extends too far inward.

[0028] In this embodiment, the pile gripper is fixed to the wind turbine installation vessel, specifically to one side of the vessel's hull. To achieve connection, two support rods 11 are vertically fixed to one side of the frame 1, and a mounting plate 12 is fixed to the other side of the support rods 11. Mounting holes 15 are provided on both sides of the mounting plate 12. Specifically, bolts are used to pass through the mounting holes 15 to fix the pile gripper to an outwardly retractable workbench on one side of the wind turbine installation vessel. This workbench is connected to a lift on the wind turbine installation vessel, allowing for lifting within a certain height range. Of course, multiple pile grippers can be installed vertically on the workbench as needed to better maintain the verticality of the pipe piles.

[0029] A reinforcing plate 13, triangular in shape, is fixedly installed between the support rod 11 and the frame 1 to enhance the connection strength between the support rod 11 and the frame 1. A reinforcing rod 14 is fixedly installed between the mounting plate 12 and the support rod 11 to enhance the connection strength between them. A gripping rod 16 is fixedly installed on the side end of the toothed ring 6. A sponge pad is fitted onto the outer surface of the gripping rod 16 to facilitate rotation of the toothed ring 6.

[0030] When the wind turbine installation vessel is driving and installing wind turbine pipe piles, it uses the lifting equipment on the vessel to lift a single pipe pile and adjusts the inner diameter of the pile gripper according to the diameter of the pipe pile being lifted.

[0031] When adjusting the inner diameter of the pile driver, the handle 16 is manually rotated to rotate the gear ring 6, which in turn drives multiple gears 5 inside the circular gear ring 6 to rotate simultaneously. The gears 5 drive the worm 4 to rotate, and the vertical worm 4 drives the worm wheel 2 to rotate horizontally. The horizontal rotation of the worm wheel 2 in its original position drives the threaded rod 3 to move back and forth, thus achieving the simultaneous adjustment of the positions of the four rollers 8. After the adjustment is completed, the rotation of the handle 16 can be stopped and locked.

[0032] After adjustment, extend the pile gripper to the installation position of the pipe pile on one side of the hull, so that the bottom center of the hoisted pipe pile is directly opposite the center of the pile gripper. Lower the pipe pile and insert it into the center of the pile gripper, so that the center of the pile gripper is in the center of the four rollers 8, thereby limiting the position of the pipe pile and ensuring that the pipe pile remains vertical due to the enclosure of the pile gripper when driving the pile downward.

[0033] This utility model, through the arrangement of a worm gear 2, a threaded rod 3, a worm 4, a gear 5, and a gear ring 6, facilitates the simultaneous adjustment of the movement of four rollers 8, enabling convenient guidance for pipe piles of different diameters, enhancing practicality and expanding the scope of application. Furthermore, the connecting plate 9 and guide rod 10 provide guidance and support for the movement of the U-shaped plate 7; the reinforcing plate 13 and reinforcing rod 14 enhance the connection strength; and the grip rod 16 facilitates the rotation of the gear ring 6, providing power for the simultaneous extension and retraction of the four rollers 8. The design of the worm gear 2 and worm 4 also enables a self-locking function, and the linkage function between the gear ring 6 and the gear 5 ensures that even if the rollers 8 are impacted, they will not be knocked open individually.

[0034] In summary, this utility model provides a pile gripper with a reasonable structure, complete functions, and strong applicability. It can adjust the guidance according to the diameter of the pipe pile, enhances its practicality, and has broad application prospects.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An adjustable pipe pile gripper, characterized in that, Its components include a frame (1), a worm gear (2), a worm (4), a gear (5), and a gear ring (6). The frame (1) is rectangular. A worm gear (2) is located inside each of the four sides of the frame (1). A threaded rod (3) is threadedly connected to the center of each fixed worm gear (2). The threaded rod (3) can extend and retract through the sides of the frame (1). A worm (4) is rotatably mounted on the frame (1). The worm (4) meshes with the worm gear (2). A gear (5) is coaxially fixed to the top of the worm (4). The top of the frame (1) is equipped with... There is a rotatable gear ring (6), the inner wall of which is threaded and meshes with four gears (5). A U-shaped plate (7) is provided at one end of the threaded rod (3) inside the frame (1). A roller (8) is rotatably installed inside the U-shaped plate (7). A connecting plate (9) is fixedly installed on one side of the U-shaped plate (7). A guide rod (10) is fixedly installed on one side of the connecting plate (9). The guide rod (10) is movably inserted into the frame (1). A support rod (11) is fixedly installed on one side of the frame (1). An mounting plate (12) is fixedly installed on one side of the support rod (11).

2. The adjustable pipe pile gripper according to claim 1, characterized in that: A reinforcing plate (13) is fixedly installed between the support rod (11) and the frame (1), and the reinforcing plate (13) is triangular in shape.

3. The adjustable pipe pile gripper according to claim 1, characterized in that: A reinforcing rod (14) is fixedly installed between the mounting plate (12) and the support rod (11).

4. The adjustable pipe pile gripper according to claim 3, characterized in that: Mounting holes (15) are provided on both sides of the mounting plate (12).

5. An adjustable pipe pile gripper according to claim 1, characterized in that: A grip (16) is fixedly installed on the side end of the toothed ring (6), and a sponge pad is sleeved on the outer surface of the grip (16).

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