A lifting device for transporting a wind turbine blade

Abstract

The utility model discloses a kind of lifting devices for wind power blade transportation, it is related to wind power blade transportation technical field.The utility model includes blade root and blade, further include: lifting mechanism, the outer ring and bottom of lifting mechanism are set at blade center, and the lifting mechanism is used to support fixed blade.The utility model is by setting lifting mechanism, specifically when putting down blade, start two motors one clockwise rotation, worm and worm gear tooth engage, limiting block and adjusting groove slide limit, make two clamping plate top far away, bottom close, blade moves down to it, then motor one counterclockwise rotation, clamping plate bottom far away, top close, until blade bottom contact support plate one, when two air bags of arc shape setting and blade outer ring close contact, air bag is under pressure deformation and can attenuate pressure, prevent blade from greatly shaking in transportation, this mode can quickly and flexibly lift and fix blade, and greatly reduce the damage caused by shaking to blade.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine blade transportation technology, and in particular relates to a lifting device for transporting wind turbine blades. Background Technology

[0002] In recent years, the global wind power industry has developed rapidly. To meet the growing demand for clean energy, wind turbine generators are gradually developing towards larger size and higher efficiency. As the core component of wind turbine generators, wind turbine blades are relatively long, which brings huge challenges to the transportation process.

[0003] In the traditional process of transporting wind turbine blades, only the root of the blade is often fixed, while the blade itself lacks an effective fixing and protection device. As a result, the blade is subjected to frequent impacts during long-distance transportation, and long-term vibration may cause damage to the internal structure of the blade, affecting its service life and power generation performance. To address this, we propose a lifting device for transporting wind turbine blades. Utility Model Content

[0004] The purpose of this invention is to provide a lifting device for transporting wind turbine blades. Specifically, when lowering the blade, two motors are activated and rotate clockwise. The worm gear meshes with the worm wheel, and the limiting block slides and adjusts the groove, causing the tops of the two clamping plates to move away from each other and the bottoms to move closer together. The blade moves down into the space between them. Then, motor one rotates counterclockwise, causing the bottoms of the clamping plates to move away from each other and the tops to move closer together until the bottom of the blade contacts the support plate. At this point, two arc-shaped airbags are in close contact with the outer ring of the blade. The airbags deform under pressure, which reduces pressure and prevents the blade from swaying significantly during transport. This method can quickly and flexibly lift and fix the blade, significantly reducing damage caused by swaying. It solves the problem that existing wind turbine blade transportation methods lack effective fixing and protection devices, leading to frequent impacts and potential internal structural damage during long-distance transport.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a lifting device for transporting wind turbine blades, comprising a blade root and a blade, and further comprising:

[0007] A lifting mechanism is provided on the outer ring and bottom of the blade at the center, and the lifting mechanism is used to support and fix the blade;

[0008] And a fixing mechanism, which is disposed on the outer ring, bottom and left side of the blade root, and is used to fix the blade root;

[0009] A flange is fixedly connected to the left side of the blade root, and the outer ring of the flange has several mounting holes.

[0010] The lifting mechanism includes a mounting plate, a support column is connected to the top of the mounting plate, and the support plate is fixedly connected to the top of the support column.

[0011] A clamping assembly is mounted above a mounting plate and is used to clamp the outer ring of the blade.

[0012] The support plate has a corrugated rubber pad installed on its top, which is used for shock absorption and anti-slip.

[0013] The fixing mechanism includes a second mounting plate, a fixed vertical plate is fixedly connected to the left side of the second mounting plate, a second support column is fixedly connected to the top of the second mounting plate, and a second support plate is fixedly connected to the top of the second support column.

[0014] An adjustment assembly is installed above the mounting plate 2 and is used to fix blade roots of different diameters;

[0015] The fixed vertical plate has several mounting holes on its outer ring, and the fixed vertical plate is fixedly connected to the flange by bolts.

[0016] Furthermore, the clamping assembly includes two adjusting columns, the bottom of each of the two adjusting columns is fixedly connected to the top of the mounting plate, a clamping plate is provided on the side of each of the two adjusting columns that are close to each other, and an airbag is installed on the side of each of the two clamping plates that are close to each other.

[0017] The two adjusting columns are symmetrically arranged, and the parts connected to the two adjusting columns are identical.

[0018] Furthermore, two fixing blocks and worm gears are fixedly connected to the opposite sides of the two clamping plates. Each fixing block has an adjustment groove inside. A cavity is formed at the top of the adjustment column, and a worm is rotatably connected within the cavity at the top of the adjustment column. A motor is installed at the bottom of the worm, and the top output end of the motor is fixedly connected to the bottom of the worm via a coupling. When lowering the blade, the two motors are started and rotated clockwise. The worm meshes with the worm gear, and the limiting block slides and limits the adjustment groove, causing the tops of the two clamping plates to move away from each other and the bottoms to move closer together. The blade moves down between them. Then, the motors rotate counterclockwise, causing the bottoms of the clamping plates to move away from each other and the tops to move closer together, until the bottom of the blade contacts the support plate. At this point, the two arc-shaped airbags are in close contact with the outer ring of the blade. The airbags deform under pressure, which can reduce pressure and prevent the blade from shaking significantly during transportation. This method can quickly and flexibly lift and fix the blade, and greatly reduce the damage caused by shaking to the blade.

[0019] The adjusting column is L-shaped, and limit blocks are fixedly connected to the left and right sides of the top of the adjusting column. The limit blocks are slidably limited to the adjusting groove. The worm gear is meshed with the worm wheel. The top of the motor is fixedly connected to the bottom of the extension of the adjusting column.

[0020] Furthermore, the adjustment assembly includes two fixing plates, four mounting columns are fixedly connected to the top of the second mounting plate, and support seats are fixedly connected to both the front and back of the top of the second mounting plate. A motor is fixedly connected to the front of the support seat located on the front.

[0021] The four mounting posts are located at the four corners of the top of the mounting plate 2, and the bottom of the fixing plate is hinged to the two mounting posts by a pin.

[0022] Furthermore, the output end of the second motor is fixedly connected to a bidirectional threaded rod via a coupling. The two ends of the bidirectional threaded rod are rotatably connected to two support seats respectively. Two moving rods are threadedly connected to the outer surface of the bidirectional threaded rod. A sliding rod is fixedly connected to the top of the two moving rods on the side that is close to each other. An arc-shaped groove is opened inside the fixed plate. The wavy rubber pad on the top of the second support plate supports the bottom of the blade root and at the same time reduces shock and prevents slipping. After the flange is connected and fixed to the fixed vertical plate by bolts, the second motor is started and rotated clockwise, so that the two moving rods are close to each other. Because the fixed plate is hinged to the mounting column, the moving rods are limited by the sliding rod and the arc-shaped groove. The tops of the two fixed plates are close to each other and contact the outer ring of the blade root. The wavy rubber pads are also in contact with the blade root. Finally, the flange, the fixed vertical plate, the two fixed plates and the second support plate work together to fix the blade root. The rubber pads on the fixed plates effectively reduce shock and prevent slipping, avoiding damage to the blade root from transportation bumps.

[0023] The slide bar is slidably limited by the arc groove, and an anti-detachment ring is fixedly connected to one end of the back of the bidirectional threaded rod.

[0024] This utility model has the following beneficial effects:

[0025] 1. This utility model, through the setting of a lifting mechanism, specifically, when the blade is lowered, two motors are started to rotate clockwise, the worm gear and worm wheel mesh, and the limiting block and the adjusting groove slide to limit the movement, so that the tops of the two clamping plates move away from each other and the bottoms move closer together, and the blade moves down into the middle. Then, motor one rotates counterclockwise, the bottoms of the clamping plates move away from each other and the tops move closer together, until the bottom of the blade contacts the support plate one. At this time, the two arc-shaped airbags are in close contact with the outer ring of the blade. The airbags deform under pressure to reduce pressure and prevent the blade from shaking significantly during transportation. This method can quickly and flexibly lift and fix the blade, and greatly reduce the damage caused by shaking to the blade.

[0026] 2. This utility model uses a fixing mechanism, specifically a wavy rubber pad on the top of the second support plate to support the bottom of the blade root, while also providing shock absorption and anti-slip properties. After the flange is connected and fixed to the fixed vertical plate with bolts, the second motor is started and rotated clockwise, causing the two moving rods to move closer to each other. Because the fixed plate is hinged to the mounting column, the moving rods are limited by the sliding rod and the arc groove. The tops of the two fixed plates move closer to each other and contact the outer ring of the blade root, and their wavy rubber pads also fit against the blade root. Finally, the flange, the fixed vertical plate, the two fixed plates, and the second support plate work together to fix the blade root. The rubber pads on the fixed plates effectively reduce shock and prevent slippage, avoiding damage to the blade root during transportation.

[0027] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the overall structure of the fixing mechanism of this utility model;

[0031] Figure 3 This is a schematic diagram of the overall structure of the adjustment component of this utility model;

[0032] Figure 4 This is a schematic diagram of the overall structure of the lifting mechanism of this utility model;

[0033] Figure 5 This is a schematic diagram of the limiting block structure of this utility model;

[0034] Figure 6 This is a schematic diagram of the overall structure of the clamping component of this utility model.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Blade root; 11. Blade; 12. Flange; 2. Lifting mechanism; 21. Mounting plate one; 22. Support column; 221. Supporting plate one; 23. Clamping assembly; 231. Adjusting column; 232. Clamping plate; 233. Airbag; 234. Fixing block; 235. Worm gear; 236. Adjusting groove; 237. Motor one; 238. Worm; 239. Limiting block; 3. Fixing mechanism; 31. Mounting plate two; 311. Fixing vertical plate; 32. Supporting plate two; 321. Supporting column two; 33. Adjusting assembly; 331. Fixing plate; 332. Mounting column; 333. Support seat; 334. Motor two; 335. Bidirectional threaded rod; 336. Moving rod; 337. Sliding rod; 338. Arc groove. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0038] Please see Figures 1-6 As shown, this utility model is a lifting device for transporting wind turbine blades, including a blade root 1 and a blade 11, and also includes:

[0039] Lifting mechanism 2 is located on the outer ring and bottom of the center of blade 11. Lifting mechanism 2 is used to support and fix blade 11.

[0040] And fixing mechanism 3, which is located on the outer ring, bottom and left side of blade root 1, and is used to fix blade root 1;

[0041] Among them, a flange 12 is fixedly connected to the left side of the blade root 1, and several mounting holes are opened on the outer ring of the flange 12.

[0042] The lifting mechanism 2 includes a mounting plate 21, a support column 22 connected to the top of the mounting plate 21, and a support plate 221 fixedly connected to the top of the support column 22;

[0043] Clamping assembly 23 is installed above mounting plate 21 and is used to clamp the outer ring of blade 11.

[0044] Among them, the top of the support plate 221 is equipped with a wavy rubber pad, which is used for shock absorption and anti-slip.

[0045] The fixing mechanism 3 includes a second mounting plate 31, a fixed vertical plate 311 fixedly connected to the left side of the second mounting plate 31, a second support column 321 fixedly connected to the top of the second mounting plate 31, and a second support plate 32 fixedly connected to the top of the second support column 321.

[0046] Adjustment component 33 is installed above mounting plate 2 31. Adjustment component 33 is used to fix blade roots 1 of different diameters.

[0047] The fixed vertical plate 311 has several mounting holes on its outer ring, and the fixed vertical plate 311 is fixedly connected to the flange 12 by bolts.

[0048] The clamping assembly 23 includes two adjusting posts 231. The bottom of each adjusting post 231 is fixedly connected to the top of the mounting plate 21. A clamping plate 232 is provided on the side of each adjusting post 231 that is close to each other. An airbag 233 is installed on the side of each clamping plate 232 that is close to each other.

[0049] The two adjusting columns 231 are symmetrically arranged, and the parts connected to the two adjusting columns 231 are the same; the airbag 233 deforms when it is compressed to attenuate the pressure and reduce the force ultimately transmitted to the blade 11.

[0050] Two fixing blocks 234 and worm gear 235 are fixedly connected to the side of the two clamping plates 232 that are far apart from each other. The two fixing blocks 234 are each provided with an adjustment groove 236. The top of the adjustment column 231 is provided with a cavity. A worm 238 is rotatably connected in the cavity at the top of the adjustment column 231. A motor 237 is provided at the bottom of the worm 238. The top output end of the motor 237 is fixedly connected to the bottom of the worm 238 through a coupling.

[0051] The adjusting column 231 is L-shaped, with limit blocks 239 fixedly connected to the left and right sides of the top of the adjusting column 231. The limit blocks 239 are slidably limited in cooperation with the adjusting groove 236. The worm 238 is meshed with the worm gear 235. The top of the motor 237 is fixedly connected to the bottom of the extension of the adjusting column 231. The limit blocks 239 on both sides of the adjusting column 231 cooperate with the two fixing blocks 234 to prevent the clamping plate 232 from falling off.

[0052] The adjustment assembly 33 includes two fixing plates 331. Four mounting posts 332 are fixedly connected to the top of the second mounting plate 31. Support seats 333 are fixedly connected to the front and back of the top of the second mounting plate 31. Motor 334 is fixedly connected to the front of the support seat 333 located on the front.

[0053] Four mounting posts 332 are distributed at the four corners of the top of mounting plate 2 31. The bottom of the fixing plate 331 is hinged to two mounting posts 332 by a pin. Two support seats 333 are used to support the bidirectional threaded rod 335. The four mounting posts 332 are also used to support the two fixing plates 331. The fixing plates 331 are arc-shaped, and the two fixing plates 331 are equipped with corrugated rubber pads on the side that is close to each other, which play a role in shock absorption and anti-slip. Mounting holes 2 are opened at the four corners of mounting plate 1 21 and mounting plate 2 31.

[0054] The output end of the motor 2 334 is fixedly connected to a bidirectional threaded rod 335 via a coupling. The two ends of the bidirectional threaded rod 335 are rotatably connected to two support seats 333 respectively. Two moving rods 336 are threadedly connected to the outer surface of the bidirectional threaded rod 335. A sliding rod 337 is fixedly connected to the top of the side of the two moving rods 336 that are close to each other. An arc groove 338 is opened inside the fixing plate 331.

[0055] Among them, the slide rod 337 and the arc groove 338 are in sliding limit cooperation, and one end of the back of the bidirectional threaded rod 335 is fixedly connected with an anti-detachment ring; the anti-detachment ring and the motor 334 work together to prevent the bidirectional threaded rod 335 from shifting.

[0056] A specific application of this embodiment is as follows: In use, firstly, use bolts to install mounting plate 21 and mounting plate 21 onto the transport vehicle through the mounting holes 2 at their four corners. Then, lift blade root 1 and blade 11 above the transport vehicle and lower them. During the lowering process, simultaneously start two motors 237 to rotate clockwise, driving the worm gear 238 to rotate together. Since the worm gear 238 is meshed with the worm wheel teeth 235, and the adjusting column 231 is slidably limited by the adjusting grooves 236 in the two fixing blocks 234 through the two limiting blocks 239, the tops of the two clamping plates 232 will move away from each other, and the bottoms will move closer to each other. At this time, blade 11 moves down between the two clamping plates 232. Then, the two motors 237 are started and rotated counterclockwise, so that the bottoms of the two clamping plates 232 move away from each other and the tops move closer to each other until the bottom of the blade 11 contacts the top of the support plate 221. Then, the two motors 237 are turned off. At this time, the two airbags 233 will be in close contact with the outer ring of the blade 11. When the blade 11 moves down, its outer ring will squeeze the airbags 233, causing them to deform and ensuring that the blade 11 can move down smoothly. Since the two clamping plates 232 and the two airbags 233 are all arc-shaped, they can wrap the outer ring of the blade 11 well. When the airbags 233 are compressed, they can reduce the pressure through deformation, preventing the blade 11 from shaking significantly during transportation.

[0057] When the bottom of blade 11 contacts the top of support plate 221, the bottom of blade root 1 will also contact the top of support plate 32. The corrugated rubber pad installed on the top of support plate 32 serves to dampen shock and prevent slippage. Then, several bolts are inserted into several mounting holes 1 on flange 12 and tightened to fix flange 12 to fixed vertical plate 311. Then, motor 334 is started clockwise to drive the double-threaded rod 335 to rotate clockwise. The two moving rods 336 will move closer to each other. Since both sides of the bottom of fixed plate 331 are hinged to two mounting columns 332 by pins, and the moving rods 336 are connected by... The sliding rod 337 and the arc groove 338 slide and limit each other, so both fixing plates 331 will rotate around the pin at their bottom. At this time, the tops of the two fixing plates 331 will approach each other and contact the outer ring of the blade root 1. At this time, the wavy rubber pad on the fixing plate 331 contacts the outer ring of the blade root 1. The flange 12 and the fixing vertical plate 311, as well as the two fixing plates 331 and the support plate 2 32 work together to effectively fix the blade root 1. The wavy rubber pad on the fixing plate 331 can play the role of anti-slip and shock absorption, which can effectively prevent the blade root 1 from being damaged by bumps during transportation.

[0058] After transportation is completed, unscrew several bolts on flange 12, then start motor 234 to rotate counterclockwise to release the fixation on blade root 1. Then start two motors 1237 to rotate clockwise, and lift blade root 1 and blade 11 at the same time.

[0059] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A lifting device for transporting wind turbine blades, comprising a blade root (1) and a blade (11), characterized in that, Also includes: The lifting mechanism (2) is located on the outer ring and bottom of the center of the blade (11). The lifting mechanism (2) is used to support and fix the blade (11). And a fixing mechanism (3), which is provided on the outer ring, bottom and left side of the blade root (1), and is used to fix the blade root (1). The blade root (1) is fixedly connected to a flange (12) on the left side, and the outer ring of the flange (12) has several mounting holes.

2. The lifting device for transporting wind turbine blades according to claim 1, characterized in that, The lifting mechanism (2) includes a mounting plate (21), a support column (22) is connected to the top of the mounting plate (21), and the support plate (221) is fixedly connected to the top of the support column (22). Clamping assembly (23), which is mounted above mounting plate (21), is used to clamp the outer ring of blade (11); The support plate (221) is equipped with a wavy rubber pad on its top, which is used for shock absorption and anti-slip.

3. The lifting device for transporting wind turbine blades according to claim 1, characterized in that, The fixing mechanism (3) includes a second mounting plate (31), a fixed vertical plate (311) is fixedly connected to the left side of the second mounting plate (31), a second support column (321) is fixedly connected to the top of the second mounting plate (31), and a second support plate (32) is fixedly connected to the top of the second support column (321). Adjustment component (33), which is installed above mounting plate two (31), is used to fix blade roots (1) of different diameters. The fixed vertical plate (311) has several mounting holes on its outer ring, and the fixed vertical plate (311) is fixedly connected to the flange (12) by bolts.

4. A lifting device for transporting wind turbine blades according to claim 2, characterized in that, The clamping assembly (23) includes two adjusting columns (231), the bottom of which is fixedly connected to the top of the mounting plate (21), and clamping plates (232) are provided on the side of the two adjusting columns (231) that are close to each other, and airbags (233) are installed on the side of the two clamping plates (232) that are close to each other. The two adjustment columns (231) are symmetrically arranged, and the parts connected to the two adjustment columns (231) are the same.

5. A lifting device for transporting wind turbine blades according to claim 4, characterized in that, Two fixing blocks (234) and worm gear teeth (235) are fixedly connected to the two clamping plates (232) on the side away from each other. An adjustment groove (236) is opened inside the two fixing blocks (234). A cavity is opened at the top of the adjustment column (231). A worm (238) is rotatably connected in the cavity at the top of the adjustment column (231). A motor (237) is provided at the bottom of the worm (238). The top output end of the motor (237) is fixedly connected to the bottom of the worm (238) through a coupling. The adjusting column (231) is L-shaped. Limiting blocks (239) are fixedly connected to the left and right sides of the top of the adjusting column (231). The limiting blocks (239) are slidably limited to the adjusting groove (236). The worm (238) is meshed with the worm gear (235). The top of the motor (237) is fixedly connected to the bottom of the extension of the adjusting column (231).

6. A lifting device for transporting wind turbine blades according to claim 3, characterized in that, The adjustment assembly (33) includes two fixing plates (331), and four mounting columns (332) are fixedly connected to the top of the second mounting plate (31). Support seats (333) are fixedly connected to the front and back of the top of the second mounting plate (31). Motor 2 (334) is fixedly connected to the front of the support seat (333) located on the front. The four mounting posts (332) are distributed at the four corners of the top of the mounting plate (31), and the bottom of the fixing plate (331) is hinged to the two mounting posts (332) by a pin.

7. A lifting device for transporting wind turbine blades according to claim 6, characterized in that, The output end of the motor (334) is fixedly connected to a bidirectional threaded rod (335) via a coupling. The two ends of the bidirectional threaded rod (335) are rotatably connected to two support seats (333) respectively. Two moving rods (336) are threadedly connected to the outer surface of the bidirectional threaded rod (335). A sliding rod (337) is fixedly connected to the top of the side of the two moving rods (336) that are close to each other. An arc groove (338) is opened inside the fixing plate (331). The slide rod (337) is slidably limited to the arc groove (338), and an anti-detachment ring is fixedly connected to one end of the back of the bidirectional threaded rod (335).

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