Dynamic positioning device for hoisting single blade of offshore wind turbine generator

Abstract

The utility model relates to a power positioning device for hoisting a single blade of an offshore wind turbine generator, which comprises a base, a support beam is arranged above the base, a hoisting mechanism for facilitating hoisting is arranged on the left side of the support beam, a support is fixed on the upper surface of the base, and a power source is arranged on the support. And a positioning mechanism for positioning the mounting position of the blade is arranged on the bracket. According to the power positioning device for hoisting the single blade of the offshore wind turbine generator, through cooperation of a first motor, a first winding roller can be driven to rotate so as to drive a hoisting rope to wind or extend, through cooperation of the hoisting rope, a hoisting block can be driven to move so as to drive and adjust the hoisting height of the blade, and through cooperation of the first motor, the hoisting height of the blade is adjusted. And through movement of the threaded block, the second clamping plate can be driven to move, so that the second clamping plate is matched with the first clamping plate to fix the blade.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind turbine installation, in particular to a dynamic positioning device for hoisting a single blade of an offshore wind turbine. Background Art

[0002] A wind turbine is a system that converts the kinetic energy of wind into electrical energy. A wind turbine includes a wind rotor and a generator. The wind rotor contains blades, a hub, reinforcements, etc. It has functions such as blades rotating under wind power to generate electricity and the generator head rotating. The wind power source consists of a wind turbine, a tower supporting the generator, a battery charge controller, an inverter, an unloader, a grid connection controller, a battery pack, etc.

[0003] For example, a single-blade hoisting tool for a wind turbine generator set is disclosed in the Chinese utility model patent publication number (CN209161299U), which includes a main hoisting beam and an end hoisting beam. The main hoisting beam is in a long strip shape, and the end hoisting beam is in a T shape. The end hoisting beam includes a connecting beam and a supporting beam. Both ends of the supporting beam are connected to an electric hoist and a hoisting seat. The end of the main hoisting beam away from the connecting beam is connected to a hoisting seat and a hanging seat. A front hoisting belt is connected between two electric hoists. The hook of one electric hoist is connected to one end of the front hoisting belt, and a front automatic unhooking device is connected between the hook of the other electric hoist and the other end of the front hoisting belt. A bracket is connected to the front hoisting belt, and a soft bracket is installed on the upper surface of the bracket. The upper surface of the support seat is a concave arc structure; the rear sling and the rear automatic unhooking device are connected to the mounting seat, one end of the rear sling is connected to the mounting seat, and the other end of the rear sling is connected to the rear automatic unhooking device. This patent solves the problem that several single-blade installation devices and methods that have appeared on the market have not been widely used due to their complex structure, high cost, poor versatility, and low reliability of the clamping mechanism. However, when hoisting a single blade, the patent requires the staff to manually hook the blade to the lifting beam, and the blades of the offshore wind turbine are large in size, which makes the workload of the hook large, and the balance of the blade needs to be tested during lifting, resulting in low efficiency of blade hoisting and affecting practicality. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a dynamic positioning device for hoisting a single blade of an offshore wind turbine, which has the advantages of not requiring workers to manually fix the blade and being able to maintain the stability of the hoisting. It solves the problem in the patent that when hoisting a single blade, workers are required to manually hook the blade onto the lifting beam, while the blades of offshore wind turbines are large in size, the workload of the hook is large, and the balance of the blades needs to be tested during hoisting, resulting in low efficiency in blade hoisting and affecting practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dynamic positioning device for hoisting a single blade of an offshore wind turbine, comprising a base, a support beam is provided above the base, a hoisting mechanism for facilitating hoisting is provided on the left side of the support beam, a bracket is fixed on the upper surface of the base, and a positioning mechanism for positioning the installation position of the blade is provided on the bracket;

[0006] The lifting mechanism includes a first mounting frame, which is fixed to the left side of the support beam, a first motor is fixed to the front side of the first mounting frame, an output shaft of the first motor passes through and extends to the inner side of the first mounting frame, and a first winding roller is fixed thereto, the back side of the first winding roller is rotatably connected to the rear inner wall of the first mounting frame via a bearing, a lifting rope is wrapped around the outer side of the first winding roller, a lifting block is fixed to the other end of the lifting rope, a first clamping plate is fixed to the lower surface of the lifting block, and a fixing component for fixing the blade is provided on the first clamping plate.

[0007] Furthermore, the number of the brackets is two, and they are symmetrically distributed front to back about the central axis of the base.

[0008] Furthermore, two limit plates are fixed to the outer side of the first winding roller and are symmetrically distributed front to back about the central axis of the first winding roller.

[0009] Furthermore, the fixing assembly includes a mounting plate, which is fixed to the right side of the first clamping plate, a second motor is fixed to the upper surface of the mounting plate, an output shaft of the second motor passes through and extends to the interior of the mounting plate and is fixed with a threaded rod, the other end of the threaded rod is rotatably connected to the inner bottom wall of the mounting plate via a bearing, a threaded block is threadedly connected to the outer side of the threaded rod, a left side of the threaded block passes through and extends to the left side of the mounting plate and is fixed with a second clamping plate, and rubber pads are fixed to the upper surface of the second clamping plate and the lower surface of the first clamping plate.

[0010] Furthermore, a sliding opening is provided on the left side of the mounting plate, the threaded block is located inside the sliding opening, and the width of the sliding opening is matched with the width of the threaded block.

[0011] Furthermore, the positioning mechanism includes a second mounting frame, which is fixed to the top of the bracket, a third motor is fixed to the front of the second mounting frame, the output shaft of the third motor passes through and extends to the inner side of the second mounting frame, and a second winding roller is fixed thereto, a traction rope is wrapped around the outer side of the second winding roller, the other end of the traction rope is fixed to the right side of the support beam, a connecting plate is fixed to the upper surface of the base, and the back side of the connecting plate is rotatably connected to the front side of the support beam through a bearing.

[0012] Furthermore, the number of the connecting plates is two, and they are symmetrically distributed front to back about the central axis of the support beam.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The dynamic positioning device for hoisting a single blade of an offshore wind turbine can drive the first winding roller to rotate through the cooperation of the first motor, thereby driving the hoisting rope to be wound or extended, and can drive the hoisting block to move through the cooperation of the hoisting rope, thereby driving the adjustment of the height of the blade hoisting, and can drive the threaded rod to rotate through the cooperation of the first motor, thereby driving the threaded block to move, and through the movement of the threaded block, the second clamping plate can be driven to move, thereby also cooperating with the first clamping plate to fix the blade.

[0015] 2. The dynamic positioning device for the single-blade hoisting of the offshore wind turbine can drive the second winding roller to rotate through the cooperation of the third motor, thereby facilitating the winding or extension of the traction rope. Through the cooperation of the traction rope, the support beam can be driven to move, and the support beam and the connecting plate are rotatably connected through bearings. Therefore, the winding of the traction rope can drive the support beam to rotate, thereby adjusting the hoisting angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the lifting mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the positioning mechanism of the utility model.

[0019] In the figure: 1 base, 2 support beam, 3 lifting mechanism, 301 first mounting frame, 302 first motor, 303 first winding roller, 304 lifting rope, 305 lifting block, 306 first clamping plate, 307 mounting plate, 308 second motor, 309 threaded rod, 310 threaded block, 311 second clamping plate, 312 rubber pad, 4 bracket, 5 positioning mechanism, 501 second mounting frame, 502 third motor, 503 second winding roller, 504 traction rope, 505 connecting plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1In this embodiment, a dynamic positioning device for hoisting a single blade of an offshore wind turbine unit includes a base 1, a support beam 2 is provided above the base 1, a hoisting mechanism 3 for facilitating hoisting is provided on the left side of the support beam 2, so that the blade can maintain installation and stability during hoisting, a bracket 4 is fixed to the upper surface of the base 1, and a positioning mechanism 5 for positioning the installation position of the blade is provided on the bracket 4, so that the blade can quickly find the installation position during hoisting.

[0022] There are two brackets 4 , which are symmetrically distributed front to back about the central axis of the base 1 .

[0023] See also Figure 2 In order to enable the blade to maintain installation performance and stability during hoisting, the hoisting mechanism 3 in this embodiment includes a first mounting frame 301, which is fixed to the left side of the support beam 2, and a first motor 302 is fixed to the front of the first mounting frame 301, and the output shaft of the first motor 302 passes through and extends to the inner side of the first mounting frame 301, and is fixed with a first winding roller 303, the output shaft of the first motor 302 drives the first winding roller 303 to rotate, the back side of the first winding roller 303 is rotatably connected to the rear inner wall of the first mounting frame 301 through a bearing, a hoisting rope 304 is wound around the outer side of the first winding roller 303, the first winding roller 303 rotates to allow the hoisting rope 304 to be wound or extended, a hoisting block 305 is fixed to the other end of the hoisting rope 304, the hoisting rope 304 drives the hoisting block 305 to move, and a first clamping plate 306 is fixed to the lower surface of the hoisting block 305, and a fixing component for fixing the blade is arranged on the first clamping plate 306.

[0024] In this example, two limit plates are fixed to the outer side of the first winding roller 303 and are symmetrically distributed front to back about the central axis of the first winding roller 303 to prevent the position of the lifting rope 304 from shifting and affecting the lifting position.

[0025] It should be noted that the fixing assembly includes a mounting plate 307, and the mounting plate 307 is fixed to the right side of the first clamping plate 306. A second motor 308 is fixed to the upper surface of the mounting plate 307. The output shaft of the second motor 308 penetrates and extends to the inside of the mounting plate 307, and is fixed with a threaded rod 309. The output shaft of the second motor 308 drives the threaded rod 309 to rotate. The other end of the threaded rod 309 is rotatably connected to the inner bottom wall of the mounting plate 307 through a bearing. The outer side of the threaded rod 309 is threadedly connected with a threaded block 310. The threaded rod 309 drives the threaded block 310 to move. The left side of the threaded block 310 penetrates and extends to the left side of the mounting plate 307, and is fixed with a second clamping plate 311. The threaded block 310 drives the second clamping plate 311 to move. The blade is lifted from the bottom so that the upper surface of the blade contacts the first clamping plate 306, thereby clamping and fixing the blade so that the blade can remain stable during the lifting process and prevent it from falling. The upper surface of the second clamping plate 311 and the lower surface of the first clamping plate 306 are fixed with rubber pads 312. In the process of fixing the blade, the rubber pads 312 can reduce the pressure on the blade, thereby preventing the first clamping plate 306 and the second clamping plate 311 from damaging the surface of the blade. A sliding opening is opened on the left side of the mounting plate 307, and the threaded block 310 is located on the inner side of the sliding opening, and the width of the sliding opening is adapted to the width of the threaded block 310. The sliding opening limits the moving range and angle of the threaded block 310, thereby preventing the angle and fixing effect of the second clamping plate 311 from being affected.

[0026] See also Figure 3 , in order to enable the blade to quickly find the installation position when hoisting, the positioning mechanism 5 in this embodiment includes a second mounting frame 501, the second mounting frame 501 is fixed to the top end of the bracket 4, a third motor 502 is fixed to the front of the second mounting frame 501, the output shaft of the third motor 502 penetrates and extends to the inner side of the second mounting frame 501, and a second winding roller 503 is fixed, the output shaft of the third motor 502 drives the second winding roller 503 to rotate, a traction rope 504 is wound around the outer side of the second winding roller 503, the second winding roller 503 drives the traction rope 504 to reel or extend, the other end of the traction rope 504 is fixed to the right side of the support beam 2, a connecting plate 505 is fixed to the upper surface of the base 1, the back side of the connecting plate 505 is rotatably connected to the front side of the support beam 2 through a bearing, the traction rope 504 drives the support beam 2 to move, and since the support beam 2 and the connecting plate 505 are rotatably connected through a bearing, the reeling or extension of the traction rope 504 drives the support beam 2 to rotate around the bearing, thereby facilitating the positioning of the hoisting position.

[0027] In this example, there are two connecting plates 505 , which are symmetrically distributed front to back about the central axis of the support beam 2 , so that the support beam 2 remains stable when rotating.

[0028] The working principle of the above embodiment is:

[0029] (1) First, turn on the first motor 302. The output shaft of the first motor 302 drives the first winding roller 303 to rotate. The rotation of the first winding roller 303 allows the lifting rope 304 to extend, so that the lifting block 305 moves downward until the first clamping plate 306 is moved to the upper side of the blade to be lifted. Then turn on the second motor 308. The output shaft of the second motor 308 drives the threaded rod 309 to rotate. The threaded rod 309 drives the threaded block 310 to move. The threaded block 310 drives the second clamping plate 311 to move, and the blade is lifted from the bottom, so that the upper surface of the blade contacts the first clamping plate 306, thereby clamping and fixing the blade, so that the blade can remain stable during the lifting process and avoid falling.

[0030] (2) During the process of fixing the blades, the rubber pad 312 can reduce the pressure on the blades, thereby preventing the first clamping plate 306 and the second clamping plate 311 from damaging the surface of the blades. After the blades are fixed, the first winding roller 303 is controlled to rotate to reel in the lifting rope 304, so that the lifting block 305 lifts the blades. During the lifting process, the third motor 502 is turned on, and the output shaft of the third motor 502 drives the second winding roller 503 to rotate. The second winding roller 503 drives the traction rope 504 to reel in or extend. The traction rope 504 drives the support beam 2 to move. Since the support beam 2 is rotatably connected to the connecting plate 505 through the bearing, the reeling or extension of the traction rope 504 drives the support beam 2 to rotate around the bearing, thereby facilitating the positioning of the lifting position.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A dynamic positioning device for hoisting a single blade of an offshore wind turbine, comprising a base (1), characterized in that: A support beam (2) is provided above the base (1), a hoisting mechanism (3) for facilitating hoisting is provided on the left side of the support beam (2), a bracket (4) is fixed on the upper surface of the base (1), and a positioning mechanism (5) for positioning the installation position of the blade is provided on the bracket (4); The lifting mechanism (3) comprises a first mounting frame (301), wherein the first mounting frame (301) is fixed to the left side of the support beam (2), a first motor (302) is fixed to the front side of the first mounting frame (301), an output shaft of the first motor (302) passes through and extends to the inner side of the first mounting frame (301), and a first winding roller (303) is fixed thereto, the back side of the first winding roller (303) is rotatably connected to the rear inner wall of the first mounting frame (301) via a bearing, a lifting rope (304) is wound around the outer side of the first winding roller (303), a lifting block (305) is fixed to the other end of the lifting rope (304), a first clamping plate (306) is fixed to the lower surface of the lifting block (305), and a fixing component for fixing the blade is arranged on the first clamping plate (306).

2. A dynamic positioning device for hoisting a single blade of an offshore wind turbine according to claim 1, characterized in that: The number of the brackets (4) is two, and they are symmetrically distributed front to back about the central axis of the base (1).

3. A dynamic positioning device for hoisting a single blade of an offshore wind turbine according to claim 1, characterized in that: Two limit plates are fixed on the outer side of the first winding roller (303) and are symmetrically distributed front to back about the central axis of the first winding roller (303).

4. A dynamic positioning device for hoisting a single blade of an offshore wind turbine according to claim 1, characterized in that: The fixing assembly includes a mounting plate (307), wherein the mounting plate (307) is fixed to the right side of the first clamping plate (306), a second motor (308) is fixed to the upper surface of the mounting plate (307), an output shaft of the second motor (308) passes through and extends to the inside of the mounting plate (307), and a threaded rod (309) is fixed thereto, the other end of the threaded rod (309) is rotatably connected to the inner bottom wall of the mounting plate (307) via a bearing, a threaded block (310) is threadedly connected to the outer side of the threaded rod (309), a left side of the threaded block (310) passes through and extends to the left side of the mounting plate (307), and a second clamping plate (311) is fixed thereto, and rubber pads (312) are fixed to the upper surface of the second clamping plate (311) and the lower surface of the first clamping plate (306).

5. A dynamic positioning device for hoisting a single blade of an offshore wind turbine according to claim 4, characterized in that: A sliding opening is provided on the left side of the mounting plate (307), the threaded block (310) is located inside the sliding opening, and the width of the sliding opening is adapted to the width of the threaded block (310).

6. A dynamic positioning device for hoisting a single blade of an offshore wind turbine according to claim 1, characterized in that: The positioning mechanism (5) comprises a second mounting frame (501), the second mounting frame (501) is fixed to the top end of the bracket (4), a third motor (502) is fixed to the front side of the second mounting frame (501), an output shaft of the third motor (502) passes through and extends to the inner side of the second mounting frame (501), and a second winding roller (503) is fixed thereto, a traction rope (504) is wound around the outer side of the second winding roller (503), the other end of the traction rope (504) is fixed to the right side of the support beam (2), a connecting plate (505) is fixed to the upper surface of the base (1), and the back side of the connecting plate (505) is rotatably connected to the front side of the support beam (2) via a bearing.

7. A dynamic positioning device for hoisting a single blade of an offshore wind turbine according to claim 6, characterized in that: The number of the connecting plates (505) is two, and they are symmetrically distributed front to back about the central axis of the supporting beam (2).

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