Offshore wind turbine single blade hoisting butt joint auxiliary device

Abstract

The utility model relates to an offshore wind turbine single blade hoisting butt joint auxiliary device which comprises a shell, a fixing mechanism is arranged in the shell, two hoisting rings are fixed on the upper surface of the shell, an auxiliary mechanism is arranged on the right side of the shell, and the auxiliary mechanism comprises two electric push rods fixed on the right side of the shell. Box bodies are fixed to the output ends of the electric push rods, two connecting rods are fixed between the two box bodies, and a first motor is fixed to the back face of an inner cavity of each box body. According to the offshore wind turbine single blade hoisting butt joint auxiliary device, an electric push rod pushes a box body and a connecting rod to move together, so that a wind turbine is located among four clamping plates, a first motor drives a first bevel gear to rotate and drives a second bevel gear and a first threaded rod to rotate together, two moving blocks move relatively at the same time, and the clamping plates are driven to move together; the wind turbine is fixed, the electric push rod reversely works to drive the shell and the fixed blades to move together, and the blades can be conveniently in butt joint with the wind turbine.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbines, in particular to a single-blade hoisting and docking auxiliary device for offshore wind turbines. Background Art

[0002] During the construction of offshore wind turbine blade hoisting, one operation process includes first lifting the hoisting fixture with a crane, then carrying the fixture directly to the transport ship to clamp the offshore wind turbine blades, and then barging to a self-elevating wind power installation platform or directly installing the blades. However, since the blade transport ship is affected by surge currents, the ship and the transported blades will float together. Since the material of the offshore wind turbine blades is relatively fragile compared to the hoisting fixture made of steel, if the offshore wind turbine blades clamped by the hoisting fixture shake too much, the hoisting fixture will hit the blades and cause damage to the blades.

[0003] For example, a Chinese patent (publication number: CN217350410U) discloses a lifting device for offshore wind turbine blades, including a lifting clamp, at least one transport vehicle and a limiting structure, wherein the lifting clamp is suitable for clamping the offshore wind turbine blades; the limiting structure is connected to the transport vehicle, and each of the transport vehicles is connected to at least one group of the limiting structures, and the limiting structure is suitable for cooperating with the bottom limiting function of the lifting clamp to limit and fix the lifting clamp in the length direction of the offshore wind turbine blade clamped by the lifting clamp. The lifting device for offshore wind turbine blades provided by the utility model can achieve refined docking during the clamping process of the offshore wind turbine blades and avoid damage to the offshore wind turbine blades caused by large shaking.

[0004] The above-mentioned lifting device for offshore wind turbine blades still has certain shortcomings. The lifting clamp can be a C-type clamp, which can simultaneously clamp the offshore wind turbine blade at two positions in the length direction of the offshore wind turbine blade. However, due to offshore lifting, the single blade needs to be docked with the wind turbine. The sea has strong winds and waves, and the docking is difficult. In addition, there is a lack of auxiliary devices. The docking process is time-consuming and labor-intensive, affecting the installation efficiency. Therefore, the present application proposes an offshore wind turbine single blade lifting and docking auxiliary device to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an auxiliary device for hoisting and docking a single blade of an offshore wind turbine, which has the advantages of convenient docking, etc., and solves the problem of inconvenient docking of the existing hoisting devices for offshore wind turbine blades.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an offshore wind turbine single blade hoisting and docking auxiliary device, comprising a shell, a fixing mechanism is provided inside the shell, two lifting rings are fixed on the upper surface of the shell, and an auxiliary mechanism is provided on the right side of the shell;

[0007] The auxiliary mechanism includes two electric push rods fixed to the right side of the shell, the output end of the electric push rods is fixed with a box body, two connecting rods are fixed between the two box bodies, a first motor is fixed to the back of the inner cavity of the box body, a first bevel gear is fixed to the output shaft of the first motor, a first threaded rod is rotatably connected between the left and right sides of the inner cavity of the box body through a bearing seat, a second bevel gear meshing with the first bevel gear is fixed to the outer surface of the first threaded rod, two moving blocks are threadedly connected to the outer surface of the first threaded rod, and a clamping plate is fixed to the opposite side of the two moving blocks.

[0008] Furthermore, the thread of the first threaded rod is divided into two sections, the two sections have opposite directions of the thread, and arc grooves are provided on opposite sides of the two clamping plates.

[0009] Furthermore, two vertical plates are fixed to the back of the inner cavity of the box, and sliding rods are fixed to the opposite sides of the two vertical plates, and the moving block is slidably connected to the outer surface of the sliding rod.

[0010] Furthermore, the fixing mechanism includes a second motor fixed to the left side of the inner cavity of the shell, and the output shaft of the second motor is fixed with a third bevel gear. The fixing mechanism also includes two second threaded rods rotatably connected between the upper and lower sides of the inner cavity of the shell through a bearing seat, and the outer surface of the second threaded rod at the left end is fixed with a fourth bevel gear meshing with the third bevel gear. The outer surfaces of the two second threaded rods are provided with a transmission assembly, and the outer surfaces of the two second threaded rods are threadedly connected to two movable plates, and a plurality of telescopic rods are fixed to the opposite sides of the two movable plates, and the outer surfaces of the telescopic rods are sleeved with springs, and the opposite sides of the upper and lower telescopic rods are fixed with fixed plates.

[0011] Furthermore, the transmission assembly includes a sprocket fixed to the outer surface of the second threaded rod, and the outer surfaces of the two sprockets are transmission-connected with chains.

[0012] Furthermore, the thread of the second threaded rod is divided into two sections, and the two sections of the thread have opposite directions. T-shaped rods are fixed on both the upper and lower sides of the inner cavity of the shell, and the movable plate is slidably connected to the outer surface of the T-shaped rod.

[0013] Furthermore, the opposite sides of the upper and lower springs are respectively fixed to the opposite sides of the two movable plates, and the opposite sides of the upper and lower springs are respectively fixed to the opposite sides of the upper and lower fixed plates.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The offshore wind turbine single blade hoisting and docking auxiliary device, through the auxiliary mechanism, the electric push rod pushes the box body and the connecting rod to move together, so that the wind turbine is located between the four clamping plates, the first motor drives the first bevel gear to rotate, drives the second bevel gear and the first threaded rod to rotate together, so that the two moving blocks move relatively at the same time, and drive the clamping plates to move together, fix the wind turbine, and the electric push rod works in the reverse direction, drives the outer shell and the fixed blade to move together, so as to facilitate the docking of the blade with the wind turbine.

[0016] 2. The offshore wind turbine single-blade hoisting and docking auxiliary device places the blade between two fixed plates through a fixing mechanism. The second motor drives the third bevel gear to rotate, and drives the fourth bevel gear and the second threaded rod to rotate together. The second threaded rod drives the second threaded rod at the right end to rotate together through the transmission assembly, so that the two movable plates move relative to each other at the same time. The movable plate drives the fixed plate to move through the telescopic rod to fit with the blade. The movable plate continues to move, and the spring is compressed through the contact between the fixed plate and the blade to prevent damage to the blade. At the same time, the blade can be fixed more stably through the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a three-dimensional appearance diagram of the housing of the utility model;

[0019] Figure 3 It is a top view structural diagram of the auxiliary mechanism of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the fixing mechanism of the utility model.

[0021] In the figure: 1 housing, 2 lifting ring, 3 fixing mechanism, 301 second motor, 302 third bevel gear, 303 fourth bevel gear, 304 second threaded rod, 305 transmission assembly, 306 moving plate, 307 telescopic rod, 308 spring, 309 fixing plate, 4 auxiliary mechanism, 401 electric push rod, 402 box, 403 connecting rod, 404 first bevel gear, 405 second bevel gear, 406 first threaded rod, 407 moving block, 408 clamping plate, 409 first motor. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-2 In this embodiment, an auxiliary device for lifting and docking a single blade of an offshore wind turbine includes a shell 1. A fixing mechanism 3 is provided inside the shell 1 for fixing the blade. Two lifting rings 2 are fixed on the upper surface of the shell 1. An auxiliary mechanism 4 is provided on the right side of the shell 1. The blade is docked with the wind turbine through the auxiliary mechanism 4, which facilitates the installation of the blade and the wind turbine.

[0024] See also Figure 1 and Figure 3 In order to dock the blades with the wind turbine, the auxiliary mechanism 4 in this embodiment includes two electric push rods 401 fixed to the right side of the housing 1, the output end of the electric push rod 401 is fixed with a box 402, two connecting rods 403 are fixed between the two boxes 402 to increase the stability of the two boxes 402, a first motor 409 is fixed to the back of the inner cavity of the box 402, the output shaft of the first motor 409 is fixed with a first bevel gear 404, and the left and right sides of the inner cavity of the box 402 are rotatably connected with a first threaded rod 406 through a bearing seat A second bevel gear 405 meshing with the first bevel gear 404 is fixed on the outer surface of the first threaded rod 406. The first motor 409 drives the first bevel gear 404 to rotate, and drives the second bevel gear 405 and the first threaded rod 406 to rotate together. The outer surface of the first threaded rod 406 is threadedly connected to two moving blocks 407. The first threaded rod 406 rotates, driving the two moving blocks 407 to move relative to each other or opposite to each other at the same time. A clamping plate 408 is fixed on the opposite side of the two moving blocks 407 for fixing the wind turbine.

[0025] The first threaded rod 406 has two threads with opposite directions. The first threaded rod 406 rotates to drive the two moving blocks 407 to move relative to or opposite to each other at the same time. The two clamping plates 408 have arc grooves on their opposite sides to facilitate the fixing of the wind turbine.

[0026] In addition, two vertical plates are fixed to the back of the inner cavity of the box body 402, and sliding rods are fixed to the opposite sides of the two vertical plates. The moving block 407 is slidably connected to the outer surface of the sliding rod to increase the stability of the moving block 407 when moving.

[0027] In the auxiliary mechanism 4 of this embodiment, the electric push rod 401 pushes the box body 402 and the connecting rod 403 to move together, so that the wind turbine is located between the four clamping plates 408, and the first motor 409 drives the first bevel gear 404 to rotate, and drives the second bevel gear 405 and the first threaded rod 406 to rotate together, so that the two moving blocks 407 move relatively at the same time, and drive the clamping plates 408 to move together to fix the wind turbine, and the electric push rod 401 works in the reverse direction, driving the outer casing 1 and the fixed blades to move together, so as to facilitate the docking of the blades with the wind turbine.

[0028] See also Figure 4In order to facilitate the fixing of the blades, the fixing mechanism 3 in this embodiment includes a second motor 301 fixed to the left side of the inner cavity of the shell 1, and the output shaft of the second motor 301 is fixed with a third bevel gear 302. The fixing mechanism 3 also includes two second threaded rods 304 rotatably connected between the upper and lower sides of the inner cavity of the shell 1 through a bearing seat, and the outer surface of the left second threaded rod 304 is fixed with a fourth bevel gear 303 meshing with the third bevel gear 302. The second motor 301 drives the third bevel gear 302 to rotate, and drives the fourth bevel gear 303 and the second threaded rod 304 to rotate together. The second threaded rod 304 drives the right second threaded rod 304 to rotate together through a transmission assembly 305. The outer surfaces of the two second threaded rods 304 are provided with a transmission assembly 305, and the left second threaded rod 304 drives the right second threaded rod 304 to rotate through the transmission assembly 305.

[0029] The outer surfaces of the two second threaded rods 304 are threadedly connected to two movable plates 306. The two second threaded rods 304 rotate simultaneously, driving the two movable plates 306 to move relative to or opposite to each other simultaneously. A plurality of telescopic rods 307 are fixed to opposite sides of the two movable plates 306. Springs 308 are sleeved on the outer surfaces of the telescopic rods 307. The springs 308 are made to perform linear compression motion through the telescopic rods 307. Fixed plates 309 are fixed to opposite sides of the upper and lower telescopic rods 307. The fixed plates 309 are made to perform linear motion through the telescopic rods 307.

[0030] Among them, the transmission assembly 305 includes a sprocket fixed to the outer surface of the second threaded rod 304, and the outer surfaces of the two sprockets are connected with chains for transmission. The second threaded rod 304 at the left end drives the second threaded rod 304 at the right end to rotate through the transmission assembly 305. The thread of the second threaded rod 304 is divided into two sections, and the two sections of the thread are in opposite directions. The two second threaded rods 304 rotate simultaneously, driving the two movable plates 306 to move relative to each other or opposite to each other at the same time.

[0031] In addition, T-shaped rods are fixed on the upper and lower sides of the inner cavity of the shell 1, and the movable plate 306 is slidably connected to the outer surface of the T-shaped rod to increase the stability of the movable plate 306 when moving. The opposite sides of the upper and lower springs 308 are respectively fixed to the opposite sides of the two movable plates 306, and the opposite sides of the upper and lower springs 308 are respectively fixed to the opposite sides of the upper and lower fixed plates 309. When the fixed plate 309 abuts against the blade, the movable plate 306 continues to move, which can squeeze the spring 308 to prevent damage to the blade and make the blade fixation more stable.

[0032] The fixing mechanism 3 in this embodiment places the blade between the two fixing plates 309, and the second motor 301 drives the third bevel gear 302 to rotate, and drives the fourth bevel gear 303 and the second threaded rod 304 to rotate together. The second threaded rod 304 drives the right end second threaded rod 304 to rotate together through the transmission assembly 305, so that the two movable plates 306 move relative to each other at the same time. The movable plate 306 will drive the fixed plate 309 to move through the telescopic rod 307 to fit the blade, and the movable plate 306 continues to move, and the spring 308 is compressed through the contact between the fixed plate 309 and the blade to prevent damage to the blade. At the same time, the spring 308 can fix the blade more stably.

[0033] The working principle of the above embodiment is:

[0034] (1) When the housing 1 moves the blades to the vicinity of the wind turbine, the electric push rod 401 is started, and the electric push rod 401 pushes the box body 402 and the connecting rod 403 to move together, so that the wind turbine is located between the four clamping plates 408, and the first motor 409 is started. The first motor 409 drives the first bevel gear 404 to rotate, and drives the second bevel gear 405 and the first threaded rod 406 to rotate together through the first bevel gear 404. Since the two sections of the first threaded rod 406 have opposite directions of threads, the first threaded rod 406 rotates to drive the two moving blocks 407 to move relative to each other at the same time. The moving blocks 407 will slide on the outer surface of the sliding rod to increase the stability of the moving blocks 407 when they move. When the moving blocks 407 move, they will drive the clamping plates 408 to move together. After the wind turbine is fixed by the clamping plates 408, the electric push rod 401 works in the reverse direction to drive the housing 1 and the fixed blades to move together, so as to facilitate the docking of the blades with the wind turbine.

[0035] (2) The blade is placed between the upper and lower fixed plates 309, and the second motor 301 is started. The second motor 301 drives the third bevel gear 302 to rotate, and the fourth bevel gear 303 and the second threaded rod 304 are driven to rotate together through the third bevel gear 302. The second threaded rod 304 drives the left end sprocket to rotate. The left end sprocket drives the right end sprocket and the right end second threaded rod 304 to rotate together through the chain. The two second threaded rods 304 rotate simultaneously, driving the two movable plates 306 to move relative to each other at the same time. The movable plate 306 drives the fixed plate 309 to move through the telescopic rod 307 and fit with the blade. The movable plate 306 continues to move, and the spring 308 is compressed by the contact between the fixed plate 309 and the blade to prevent damage to the blade. At the same time, the blade can be fixed more stably by the spring 308.

[0036] 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.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An offshore wind turbine single blade hoisting and docking auxiliary device, comprising a housing (1), characterized in that: A fixing mechanism (3) is provided inside the shell (1), two lifting rings (2) are fixed on the upper surface of the shell (1), and an auxiliary mechanism (4) is provided on the right side of the shell (1); The auxiliary mechanism (4) comprises two electric push rods (401) fixed to the right side of the housing (1); a box body (402) is fixed to the output end of the electric push rods (401); two connecting rods (403) are fixed between the two box bodies (402); a first motor (409) is fixed to the back of the inner cavity of the box body (402); a first bevel gear (404) is fixed to the output shaft of the first motor (409); a first threaded rod (406) is rotatably connected between the left and right sides of the inner cavity of the box body (402) through a bearing seat; a second bevel gear (405) meshing with the first bevel gear (404) is fixed to the outer surface of the first threaded rod (406); two moving blocks (407) are threadedly connected to the outer surface of the first threaded rod (406); and clamping plates (408) are fixed to opposite sides of the two moving blocks (407).

2. The offshore wind turbine single blade hoisting and docking auxiliary device according to claim 1, characterized in that: The thread of the first threaded rod (406) is divided into two sections, and the two sections of the thread are in opposite directions. The two clamping plates (408) are provided with arc grooves on opposite sides.

3. The offshore wind turbine single blade hoisting and docking auxiliary device according to claim 1, characterized in that: Two vertical plates are fixed on the back of the inner cavity of the box body (402), and sliding rods are fixed on the opposite sides of the two vertical plates. The moving block (407) is slidably connected to the outer surface of the sliding rod.

4. The offshore wind turbine single blade hoisting and docking auxiliary device according to claim 1, characterized in that: The fixing mechanism (3) comprises a second motor (301) fixed to the left side of the inner cavity of the housing (1); a third bevel gear (302) is fixed to the output shaft of the second motor (301); the fixing mechanism (3) further comprises two second threaded rods (304) rotatably connected between the upper and lower sides of the inner cavity of the housing (1) via a bearing seat; a fourth bevel gear (303) meshing with the third bevel gear (302) is fixed to the outer surface of the left end of the second threaded rod (304); a transmission assembly (305) is provided on the outer surfaces of the two second threaded rods (304); two movable plates (306) are threadedly connected to the outer surfaces of the two second threaded rods (304); a plurality of telescopic rods (307) are fixed to opposite sides of the two movable plates (306); springs (308) are sleeved on the outer surfaces of the telescopic rods (307); and fixing plates (309) are fixed to opposite sides of the upper and lower telescopic rods (307).

5. The offshore wind turbine single blade hoisting and docking auxiliary device according to claim 4, characterized in that: The transmission assembly (305) comprises a sprocket wheel fixed to the outer surface of the second threaded rod (304), and the outer surfaces of the two sprocket wheels are transmission-connected with chains.

6. The offshore wind turbine single blade hoisting and docking auxiliary device according to claim 4, characterized in that: The second threaded rod (304) has two threads with opposite directions. T-shaped rods are fixed on both the upper and lower sides of the inner cavity of the shell (1), and the movable plate (306) is slidably connected to the outer surface of the T-shaped rod.

7. The offshore wind turbine single blade hoisting and docking auxiliary device according to claim 4, characterized in that: The opposite sides of the upper and lower springs (308) are respectively fixed to the opposite sides of the two movable plates (306), and the opposite sides of the upper and lower springs (308) are respectively fixed to the opposite sides of the upper and lower fixed plates (309).

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