Tool for assembling hub of offshore wind turbine

Abstract

The utility model relates to the field of wind power generation, in particular to a tool for assembling a hub of an offshore wind turbine type, which comprises a supporting mechanism used for jacking up a blade hub, and a clamping mechanism used for fixing the blade hub is arranged on the upper side of the supporting mechanism. The height of the assembly table is quickly adjusted through three groups of damper sliding seats and hydraulic rods at the bottom of the assembly table, and meanwhile, the assembly table can be conveniently adjusted at a plurality of inclination angles, so that the lifted blades can be more conveniently butted and mounted; the movable seat moves to enable the two ejector rods to push the arc-shaped strip to wrap and fix the blade hub hung on the placing seat so as to avoid extrusion damage, meanwhile, the traction seat and the supporting rod support the traction belt, so that the mounting end of the hung blade can be more conveniently guided to the mounting position of the blade hub, the mounting speed is increased, and the collision condition is reduced.

Description

Technical Field

[0001] The utility model relates to the field of wind power generation, in particular to a tooling for assembling an offshore wind turbine hub. Background Art

[0002] When assembling the blade hub of an offshore wind turbine, the blade hub needs to be placed on the deck of the ship by means of a lifting device, and then the blades are lifted by means of the lifting device. Subsequently, the lifted blades will slowly approach the blade hub lifted on the deck, and the lifted blades will be docked and installed with the blade hub with the assistance of manual labor. When all the blades are installed on the blade hub, the blade hub with the blades installed will be lifted in a vertical state by means of a lifting device, and then the lifted blade hub and blades will be installed on the main engine of the wind turbine.

[0003] After searching the patent document with the announcement number CN219078994U, the position of the arc support plate on which the wind turbine hub is placed is adjusted by driving the arc plate to rise and fall by the second cylinder, and then adjusting the telescopic length of the third cylinder to make the distance between the arc plates on the left and right sides and the arc support plate match the outer diameter of the hub. In addition, when subjected to a shock force, the mounting plate moves downward under the pressure of the arc support plate, and at the same time, the movement of the mounting plate drives the movable rod at the bottom to drive the movable block to move on the slide rod to buffer the mounting plate, and the second spring buffers and limits the movement of the movable block, and the pressure and the movement of the movable rod counteract each other to play a buffering role;

[0004] According to the patent document, when the above-mentioned tooling supports the wind turbine hub, since the wind turbine hub needs to be installed with multiple blades and the length of the blades is relatively large, and the height that can be adjusted by the above-mentioned tooling is very limited, when installing the remaining blades, it is necessary to rotate the angle of the hub to install the remaining blades, and the hub with a single blade installed will be very inconvenient when rotating the angle. At the same time, when installing the remaining blades, since the hub is simply wrapped and fixed by the arc plate and the arc support plate, the upper side of the hub lacks a fixing structure, which makes the hub not evenly stressed and easily deformed, affecting its later use. At the same time, the entire hub placed on the arc support plate may also fall off the arc support plate due to unbalanced force. Utility Model Content

[0005] The purpose of the utility model is to provide a tooling for assembling an offshore wind turbine hub in order to solve the above-mentioned problem.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A tooling for assembling an offshore wind turbine hub, comprising a support mechanism for lifting a blade hub, and a clamping mechanism for fixing the blade hub is provided on the upper side of the support mechanism;

[0008] The supporting mechanism includes an assembly table, a placement seat is fixed on the top of the assembly table, a base is provided under the assembly table, three dampers are hinged at the outer position of the bottom of the assembly table, a sliding seat is hinged at the lower end of each damper, each sliding seat is slidably connected to the base, a base is provided on the side where the three sliding seats are close to each other, and three traction mechanisms for supporting the installation end of the blade are provided on the top of the placement seat;

[0009] The clamping mechanism includes a rotating disk, three arc-shaped racks are fixed on the outside of the rotating disk, a gear is meshed on the upper end of each arc-shaped rack, a screw is fixed at the center of the gear, a moving seat is provided on the outside of the screw, two symmetrical push rods are hinged on the upper end of the moving seat, and the ends of the two push rods away from the moving seat are hinged at the two ends of the arc-shaped bar.

[0010] Preferably: a side plate for rotatably supporting the screw is fixed at the top of the assembly table near the outer edge, and one end of the screw away from the side plate is rotatably connected to the side surface of the placement seat.

[0011] Preferably: a threaded hole for engaging with a screw rod is provided at the center of the movable seat, a driving motor for driving the rotating disk to rotate is provided at the center of the bottom of the assembly table, a cavity for rotating the rotating disk is provided inside the assembly table, and an arc groove for rotating the arc rack is provided at the top of the assembly table.

[0012] Preferably, a T-shaped slot is provided at the top of the placement seat for allowing the arc-shaped strip to slide along its radial direction, and a T-shaped block is provided at the lower end of the arc-shaped strip for sliding in the T-shaped slot.

[0013] Preferably, the traction mechanism comprises a traction seat, and two symmetrical support rods are fixed to one end of the traction seat away from the placement seat, and traction belts for supporting the installation end of the blade are fixed to the upper ends of the two support rods.

[0014] Preferably, a concave groove is provided between two adjacent T-shaped grooves on the top of the placement seat for allowing the traction seat to slide along its radial direction.

[0015] The beneficial effects compared with the prior art are as follows:

[0016] 1. The height of the assembly table can be quickly adjusted through the three sets of damper sliding seats and hydraulic rods at the bottom of the assembly table, and the assembly table can be adjusted to multiple tilt angles, making it easier to dock and install the lifted blades;

[0017] 2. By moving the moving seat, the two top rods push the arc-shaped bar to lift the blade hub onto the placement seat for wrapping and fixing to avoid extrusion damage. At the same time, the support of the traction seat and the support rod to the traction belt can more conveniently guide the installation end of the lifted blade to the installation position of the blade hub, speed up the installation speed and reduce bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a tooling for assembling an offshore wind turbine hub according to the utility model;

[0020] Figure 2 It is a cross-sectional view of a tooling for assembling an offshore wind turbine hub according to the utility model;

[0021] Figure 3 This is a diagram of the coordination between the traction mechanism and the blades of a tooling for assembling an offshore wind turbine hub according to the utility model;

[0022] Figure 4 This is a diagram showing the coordination of a placement seat and a clamping mechanism of a tooling for assembling an offshore wind turbine hub according to the utility model;

[0023] Figure 5 It is a partial parts diagram of a clamping mechanism of a tooling for assembling an offshore wind turbine hub according to the utility model;

[0024] Figure 6 This is a diagram showing the coordination of a traction mechanism and a placement seat of a tooling for assembling an offshore wind turbine hub according to the utility model;

[0025] Figure 7 This is a diagram of the matching of a damper and a sliding seat of a tooling for assembling an offshore wind turbine hub according to the utility model;

[0026] Figure 8 This is a diagram showing the coordination of a damper and an assembly platform of a tooling for assembling an offshore wind turbine hub according to the utility model.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Support mechanism; 2. Clamping mechanism; 3. Traction mechanism; 4. Blade hub; 5. Blade; 11. Assembly table; 12. Damper; 13. Sliding seat; 14. Hydraulic rod; 15. Base; 16. Placement seat; 21. Rotating plate; 22. Arc rack; 23. Driving motor; 24. Gear; 25. Screw; 26. Moving seat; 27. Push rod; 28. Arc bar; 31. Traction seat; 32. Support rod; 33. Traction belt. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] like Figure 1-Figure 8 As shown, a tooling for assembling an offshore wind turbine hub includes a support mechanism 1 for lifting a blade hub 4, and a clamping mechanism 2 for fixing the blade hub 4 is provided on the upper side of the support mechanism 1;

[0032] In this embodiment: the support mechanism 1 includes an assembly table 11, a placement seat 16 is fixed on the top of the assembly table 11, a base 15 is provided below the assembly table 11, three dampers 12 are hinged at the outer position of the bottom of the assembly table 11, and a sliding seat 13 is hinged at the lower end of each damper 12. Each sliding seat 13 is slidably connected to the base 15. A base 15 is provided on the side where the three sliding seats 13 are close to each other, and three traction mechanisms 3 for supporting the installation end of the blade 5 are provided on the top of the placement seat 16. The telescopic part of the hydraulic rod 14 is used to drive the corresponding sliding seat 13 so that the lower end of the damper 12 moves with it, and then the height or angle of the assembly table 11 is adjusted by the mutual convergence or separation of the three dampers 12, so as to make it more convenient for the blade 5 to be installed on the blade hub 4;

[0033] In this embodiment: the clamping mechanism 2 includes a rotating disk 21, three arc-shaped racks 22 are fixed on the outside of the rotating disk 21, and a gear 24 is meshed on the upper end of each arc-shaped rack 22. A screw 25 is fixed at the center of the gear 24. A moving seat 26 is provided on the outside of the screw 25. Two symmetrical top rods 27 are hinged on the upper end of the moving seat 26. The ends of the two top rods 27 away from the moving seat 26 are hinged at the two ends of the arc-shaped bar 28. A side plate for rotating and supporting the screw 25 is fixed near the outer edge of the top of the assembly table 11, and the end of the screw 25 away from the side plate is rotatably connected to the side of the placement seat 16. A threaded hole for meshing with the screw 25 is provided at the center of the moving seat 26. A driving motor 23 for driving the rotating disk 21 to rotate is provided at the center of the bottom of the assembly table 11. A cavity for rotating the rotating disk 21 is provided inside the assembly table 11, and the top of the assembly table 11 is provided with a An arc groove is provided for rotating the arc rack 22, a T-slot is provided on the top of the placement seat 16 for sliding the arc strip 28 along its radial direction, and a T-block is provided at the lower end of the arc strip 28 for sliding in the T-slot, the three arc racks 22 are rotated by the driving motor 23, the three gears 24 drive the screw 25 to rotate by themselves through the arc rack 22, the moving seat 26 is moved toward the placement seat 16 by the self-rotation of the screw 25, the moving seat 26 is moved by the movement of the moving seat 26 to allow the two push rods 27 to push the arc strip 28, so that the arc strip 28 is wrapped and fixed on the outside of the blade hub 4, and then the three arc strips 28 are fixed to the blade hub 4, when the driving motor 23 drives the rotating disk 21 to rotate the arc rack 22 in the opposite direction, the above steps are repeated to make the three arc strips 28 break away from the fixation to the blade hub 4.

[0034] In this embodiment: the traction mechanism 3 includes a traction seat 31, and two symmetrical support rods 32 are fixed to one end of the traction seat 31 away from the placement seat 16. A traction belt 33 for supporting the mounting end of the blade 5 is fixed to the upper end of the two support rods 32. A concave groove for allowing the traction seat 31 to slide radially along the top of the placement seat 16 is provided between the two adjacent T-slots on the top of the placement seat 16. The movement of the traction seat 31 drives the two support rods 32 to support the traction belt 33, and the blade 5 is placed on the traction belt 33, so that the mounting end of the blade 5 is aligned with the mounting position of the blade hub 4, and the movement of the traction seat 31 on the concave groove allows the mounting end of the blade 5 to be accurately inserted into the mounting position of the blade hub 4, thereby facilitating the installation of the blade 5 on the blade hub 4.

[0035] Working principle: When in use, the three hydraulic rods 14 on the base 15 drive the corresponding sliding seat 13 to move, so that the three dampers 12 are moved closer to or away from each other, and the height of the assembly table 11 can be adjusted. At the same time, by moving two dampers 12 closer to each other and moving another damper 12 away from each other, the assembly table 11 can be tilted at multiple angles to facilitate the installation of the lifted blade 5 on the blade hub 4;

[0036] When the blade 5 is installed, the blade hub 4 is first lifted by the lifting equipment, and then the lifted blade hub 4 is placed on the top of the placement seat 16, and then the driving motor 23 drives the rotating disk 21 to rotate the arc rack 22, and the arc rack 22 is meshed with the gear 24 to make the screw 25 rotate on its own, and the rotation of the screw 25 drives the moving seat 26 to approach the placement seat 16, and the movement of the moving seat 26 causes the two push rods 27 to push the arc strip 28 to approach the side of the blade hub 4. When the inner side of the arc strip 28 contacts the blade hub 4, the ends of the two push rods 27 close to the arc strip 28 open to each other, and then the arc strip 28 is wrapped around the outer side of the blade hub 4 and fixed to avoid damage to the outer side of the blade hub 4.

[0037] In addition, the blade 5 is lifted by the lifting equipment and brought close to the blade hub 4, and the installation end of the lifted blade 5 is placed on the traction belt 33, and supported by the two support rods 32 on the lower side of the traction belt 33. At the same time, the installation end of the blade 5 placed on the traction belt 33 will be aligned with the installation position of the blade hub 4, and then the blade 5 is driven to move in the direction of the blade hub 4 by the lifting equipment. At this time, the lifted blade 5 will push the traction seat 31 to move along the concave groove to the installation position of the blade hub 4 through the traction belt 33 and the support rod 32, and then the installation end of the blade 5 will correspond to the installation position of the blade hub 4;

[0038] When the suspended blade 5 is docked with the blade hub 4, the three dampers 12 at the bottom of the assembly table 11 can be used to adjust the inclination angle of the placement seat 16, so that the installation end face of the blade 5 is fitted with the end face of the installation position of the blade hub 4, which makes it convenient to insert the fastening bolts into the corresponding holes. In addition, during the installation process, if the suspended blade 5 collides with the support rod 32 or the traction belt 33 during the falling process, the three dampers 12 can be used to reduce the impact force caused by the collision.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A tooling for assembling an offshore wind turbine hub, characterized in that: It comprises a support mechanism (1) for lifting the blade hub (4), wherein a clamping mechanism (2) for fixing the blade hub (4) is provided on the upper side of the support mechanism (1); The support mechanism (1) comprises an assembly table (11), a placement seat (16) is fixed on the top of the assembly table (11), a base (15) is provided below the assembly table (11), three dampers (12) are hingedly connected to the outer side of the bottom of the assembly table (11), a sliding seat (13) is hingedly connected to the lower end of each damper (12), each sliding seat (13) is slidably connected to the base (15), a base (15) is provided on one side of the three sliding seats (13) close to each other, and three traction mechanisms (3) for supporting the mounting ends of the blades (5) are provided on the top of the placement seat (16); The clamping mechanism (2) comprises a rotating disk (21), three arc-shaped racks (22) are fixed on the outer side of the rotating disk (21), a gear (24) is meshed at the upper end of each arc-shaped rack (22), a screw (25) is fixed at the center of the gear (24), a moving seat (26) is provided on the outer side of the screw (25), two symmetrical top rods (27) are hinged on the upper end of the moving seat (26), and the ends of the two top rods (27) away from the moving seat (26) are hinged on the two ends of the arc-shaped bar (28).

2. The tooling for assembling an offshore wind turbine hub according to claim 1, characterized in that: A side plate for rotatably supporting the screw rod (25) is fixed at the top of the assembly table (11) near the outer edge, and one end of the screw rod (25) away from the side plate is rotatably connected to the side surface of the placement seat (16).

3. The tooling for assembling an offshore wind turbine hub according to claim 1, characterized in that: A threaded hole for engaging with the screw rod (25) is provided at the center of the movable seat (26), a driving motor (23) for driving the rotating disk (21) to rotate is provided at the center of the bottom of the assembly table (11), a cavity for rotating the rotating disk (21) is provided inside the assembly table (11), and an arc-shaped groove for rotating the arc-shaped rack (22) is provided at the top of the assembly table (11).

4. The tooling for assembling an offshore wind turbine hub according to claim 1, characterized in that: The top of the placement seat (16) is provided with a T-shaped slot for allowing the arc-shaped strip (28) to slide along its radial direction, and the lower end of the arc-shaped strip (28) is provided with a T-shaped block for sliding in the T-shaped slot.

5. The tooling for assembling an offshore wind turbine hub according to claim 1, characterized in that: The traction mechanism (3) comprises a traction seat (31), and two symmetrical support rods (32) are fixed to one end of the traction seat (31) away from the placement seat (16), and traction belts (33) for supporting the mounting ends of the blades (5) are fixed to the upper ends of the two support rods (32).

6. The tooling for assembling an offshore wind turbine hub according to claim 5, characterized in that: A concave groove is provided between two adjacent T-shaped grooves on the top of the placement seat (16) for allowing the traction seat (31) to slide in its radial direction.

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