A docking device for wind turbine tower installation

Abstract

This application relates to a docking device for installing wind turbine towers, belonging to the technical field of wind power equipment installation. It includes a support base, a rotating base, a positioning component, a stabilizing component, and a correction component. The rotating base is rotatably connected to the support base. The positioning component is used to support the support base at the center position of the top of the installed tower. The stabilizing component includes stabilizing units and a stabilizing power unit. Multiple stabilizing units are arranged around the axis of the rotating base. Each stabilizing unit includes a stabilizing support rod and a stabilizing diagonal brace. The stabilizing support rod is connected to the rotating base, and the stabilizing diagonal brace is hinged to the stabilizing support rod. The stabilizing power unit is used to drive all the stabilizing diagonal braces to swing synchronously at the same angle, allowing the stabilizing diagonal braces to swing precisely into the interior of the installed tower. After the bottom end of the tower to be installed is stably placed with the stabilizing diagonal braces, the correction component is used to swing the tower to be installed to a vertical position. This application makes it easy for the tower to be installed to concentrically approach the installed tower in a vertical position.

Description

Technical Field

[0001] This application relates to the technical field of wind power equipment installation, and in particular to a docking device for wind turbine tower installation. Background Technology

[0002] The wind turbine tower is the core supporting structure of the wind turbine. Due to the high height of the wind turbine, the wind turbine tower is usually installed using a segmented construction method.

[0003] Since towers are typically in a swaying state during installation, a docking device is needed to assist in connecting two towers, improving docking efficiency and safety. Existing docking devices are usually installed at the top of the already installed tower. The docking device is internally supported on the inner wall of the bottom of the tower to be installed and guides the tower to be installed closer to the already installed tower. The docking device not only stabilizes the tower to be installed but also aligns the bottom of the tower to be installed with the top of the already installed tower, thus facilitating rapid docking. For example, Chinese Patent Publication No. CN118686742A discloses a wind turbine tower limiting docking device.

[0004] In the above scheme, although the docking device can stabilize the tower to be installed and make the bottom end of the tower to be installed correspond to the top end of the installed tower, the swaying tower to be installed is usually in an skewed state when it is stabilized by the internal support. Therefore, after the tower to be installed is docked with the installed tower, the skewed state of the tower to be installed makes it difficult for the connecting bolts to be inserted into the connecting holes of the two docking towers. Summary of the Invention

[0005] To facilitate the concentric approach of the tower to be installed to the installed tower in a vertical position, this application provides a docking device for wind turbine tower installation.

[0006] This application provides a docking device for installing wind turbine towers, which adopts the following technical solution:

[0007] A docking device for installing wind turbine towers includes a support base, a rotating base, a positioning component, a stabilizing component, and a correction component. The rotating base is rotatably connected to the support base, and the positioning component is disposed on the support base. The positioning component is used to support the support base at the center position of the top of the installed tower.

[0008] The stabilization assembly includes stabilization units and stabilization power units. Multiple stabilization units are arranged around the axis of the rotating base. Each stabilization unit includes a stabilization support rod and a stabilization diagonal brace. One end of the stabilization support rod is connected to the rotating base, and one end of the stabilization diagonal brace is hinged to the other end of the stabilization support rod. The stabilization diagonal brace of each stabilization unit has the same included angle with the stabilization support rod. All the stabilization diagonal braces together form a conical skeleton.

[0009] The stabilizing power unit is connected to the rotating base and the other end of all the stabilizing braces. The stabilizing power unit is used to drive all the stabilizing braces to swing synchronously at the same angle, so that the other end of the stabilizing braces can be precisely inserted into the interior of the installed tower.

[0010] The alignment component is mounted on a rotating base. After the bottom of the tower to be installed is stably placed onto the conical frame, the alignment component is used to swing the tower to be installed to a vertical position.

[0011] Optionally, a sliding chain is rotatably wound around the stabilizing diagonal brace, and lubricating grease is applied between the sliding chain and the stabilizing diagonal brace. The sliding chain is formed by multiple chain plates that are hinged end to end in sequence.

[0012] Optionally, a leaf spring is provided between each of the two adjacent chain plates. The leaf spring is arc-shaped and its two ends are slidably disposed on the two chain plates respectively.

[0013] Optionally, the stabilizing support rod is a telescopic rod, and the stabilizing assembly also includes an adjusting power unit, which is connected to the rotating seat and all the stabilizing support rods respectively, and the adjusting power unit is used to drive all the stabilizing support rods to extend to the same length.

[0014] Optionally, the movable end of the stabilizing support rod can only slide relative to the fixed end. The adjusting power unit includes adjusting screws, and multiple adjusting screws are provided, each corresponding to the fixed end of the stabilizing support rod. The adjusting screws are threaded through the movable end of the stabilizing support rod. A first gear is connected to the adjusting screw. All the first gears mesh with a gear ring through a meshing notch on the fixed end of the stabilizing support rod. The gear ring is rotatably connected to a rotating seat. The gear ring meshes with a second gear, which is rotatably connected to the rotating seat. The second gear is connected to a worm gear, which meshes with a worm. The worm is rotatably connected to the rotating seat and a handwheel is connected to the worm.

[0015] Optionally, the stabilizing power unit includes a stabilizing link, a stabilizing swing arm, a stabilizing ring, and a stabilizing drive cylinder. Multiple stabilizing links and stabilizing swing arms are provided, each corresponding one-to-one with a stabilizing diagonal brace. The two ends of the stabilizing link are hinged to the other end of the stabilizing diagonal brace and one end of the stabilizing swing arm, respectively. The other end of the stabilizing swing arm is hinged to a rotating base. The stabilizing ring is slidably disposed within a power groove opened on all the stabilizing swing arms. The radius of the stabilizing ring is greater than the distance from the hinge point between the stabilizing swing arm and the rotating base to the center of the rotating base. Multiple stabilizing drive cylinders are provided, each connected between the stabilizing ring and the rotating base.

[0016] Optionally, the correction assembly includes a correction support cylinder, correction rods, correction connecting rods, and a correction power cylinder. The correction support cylinder is connected to a rotating base. Multiple correction rods are arranged around the correction support cylinder, with one end of each correction rod hinged to the top of the correction support cylinder. Multiple correction connecting rods are arranged, each corresponding to one of the correction rods. The two ends of each correction connecting rod are respectively hinged to the middle of the correction rod and the movable end of the correction power cylinder. The correction power cylinder is located inside the correction support cylinder and connected to it.

[0017] Optionally, a roller is rotatably connected to the end of the correction rod away from the correction support cylinder.

[0018] Optionally, the positioning assembly includes positioning rods and a positioning power unit. Multiple positioning rods are arranged around the support base. The positioning rods slide along the support base in a direction close to or away from the center of the support base. The positioning power unit is connected to the support base and all the positioning rods respectively. The positioning power unit is used to drive all the positioning rods to slide synchronously.

[0019] Optionally, the positioning power unit includes arc-shaped teeth, a positioning ring plate, and a positioning motor. Multiple sets of arc-shaped teeth are provided and connected to the positioning rod in a one-to-one correspondence. Each set of arc-shaped teeth has multiple teeth. The positioning ring plate is rotatably connected to the support base. The positioning ring plate has a spiral groove, and the arc-shaped teeth are used to slide in the spiral groove. The positioning motor is connected to the support base, and the output shaft of the positioning motor is drivenly connected to the positioning ring plate.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] This application discloses a docking device for wind turbine tower installation, comprising a support base, a rotating base, a positioning component, a stabilizing component, and a correction component. The stabilizing power unit drives the conical frame formed by all stabilizing diagonal braces to unfold. The conical frame guides and stabilizes the tower to be installed, preventing it from swaying and ensuring the bottom of the tower to be installed aligns with the top of the already installed tower. After the tower to be installed is stably placed on the conical frame, the correction power cylinder drives all correction rods to abut against the inner wall of the tower to be installed, ensuring the tower is vertical. Rotating the rotating base adjusts the connection holes of the two towers to align one-to-one, and the stabilizing power unit drives the conical frame to retract, allowing the tower to be installed to gradually approach the already installed tower, thus facilitating the concentric vertical approach of the tower to be installed. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure for connecting two tower sections according to an embodiment of this application;

[0023] Figure 2 This is a structural schematic diagram of an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the structure of the stabilizing component;

[0025] Figure 4 This is a schematic diagram of a sliding chain;

[0026] Figure 5 yes Figure 3 Enlarged view of point A in the middle;

[0027] Figure 6 yes Figure 3 Enlarged view at point B;

[0028] Figure 7 This is a structural diagram of the positioning component.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Support base; 2. Rotating base; 3. Positioning assembly; 31. Positioning rod; 32. Positioning power unit; 321. Arc-shaped tooth; 322. Positioning ring plate; 3221. Spiral groove; 323. Positioning motor; 324. Second dustproof shell; 4. Stabilizing assembly; 41. Stabilizing unit; 411. Stabilizing support rod; 4111. Engaging notch; 412. Stabilizing diagonal brace; 413. Sliding chain; 414. Chain plate; 4141. Buffer groove; 415. Leaf spring; 4151. Sliding plate; 42. Stabilizer 421. Power unit; 422. Stabilizing link; 422. Stabilizing rocker arm; 4221. Power groove; 423. Stabilizing ring; 424. Stabilizing drive cylinder; 43. Adjusting power unit; 431. Adjusting screw; 432. First gear; 433. Gear ring; 434. Second gear; 435. Worm gear; 436. Worm; 437. Handwheel; 438. First dust cover; 5. Correction assembly; 51. Correction support cylinder; 52. Correction rod; 53. Correction link; 54. Correction power cylinder; 55. Roller. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0032] This application discloses a docking device for installing wind turbine towers. (Refer to...) Figure 1 and Figure 2 A docking device for wind turbine tower installation includes a support base 1, a rotating base 2, a positioning component 3, a stabilizing component 4, and a correction component 5.

[0033] Reference Figure 2 Both the support base 1 and the rotating base 2 are circular plates. The diameter of the support base 1 is larger than the diameter of the rotating base 2. The rotating base 2 is rotatably connected to the support base 1. The rotating base 2 and the support base 1 are coaxially arranged, and the rotation axis of the rotating base 2 coincides with its own central axis.

[0034] The positioning component 3 is set on the support base 1. The positioning component 3 is used to support the support base 1 at the center position of the top of the installed tower. The positioning component 3 can install the support base 1 and the rotating base 2 at the center position of the top of the installed tower, so that the rotating base 2 can become the positioning reference of the tower to be installed.

[0035] Reference Figure 3 The stabilization component 4 includes a stabilization unit 41 and a stabilization power unit 42.

[0036] Multiple stabilizing units 41 are arranged around the axis of the rotating base 2. Each stabilizing unit 41 includes a stabilizing support rod 411 and a stabilizing diagonal brace 412. One end of the stabilizing support rod 411 is fixed to the rotating base 2, and one end of the stabilizing diagonal brace 412 is hinged to the other end of the stabilizing support rod 411. The stabilizing diagonal brace 412 of each stabilizing unit 41 has the same included angle with the stabilizing support rod 411. All the stabilizing diagonal braces 412 together form a conical frame. The central axis of the conical frame coincides with the rotation axis of the rotating base 2. The conical frame can gradually stabilize the tower to be installed during the downward movement by means of the tower's own weight.

[0037] The stabilizing power unit 42 is connected to the rotating base 2 and the other end of all the stabilizing diagonal braces 412 respectively. The stabilizing power unit 42 is used to drive all the stabilizing diagonal braces 412 to swing synchronously at the same angle, so that the other end of the stabilizing diagonal braces 412 can be just inserted into the interior of the installed tower. When the stabilizing diagonal braces 412 swing down, the tower to be installed can move down and approach the installed tower.

[0038] Reference Figure 2 The correction component 5 is set on the rotating seat 2. After the bottom end of the tower to be installed is stably placed on the conical frame, the correction component 5 is used to swing the tower to be installed to a vertical state, so that the tower to be installed can easily be vertical and concentrically close to the installed tower.

[0039] In use, the positioning component 3 supports the support base 1 at the center of the top of the installed tower, providing a positioning reference for the tower to be installed. The stabilizing power unit 42 drives all the stabilizing diagonal braces 412 to swing synchronously, so that the conical frame unfolds. The crane drives the tower to be installed to move down and gradually place the tower to be installed onto the conical frame. Since the central axis of the tower to be installed is usually misaligned with the central axis of the installed tower, the bottom of the tower to be installed will first abut against part of the stabilizing diagonal braces 412. Under its own weight, the tower to be installed can slide along the stabilizing diagonal braces 412 until the tower to be installed is stably placed on the conical frame. At this time, the conical frame makes the tower to be installed less likely to shake and corresponds to the installed tower.

[0040] Under the support and guidance of the conical frame, the correction component 5 drives the tower to be installed to swing to a vertical position, so that the tower to be installed can be coaxial with the installed tower. Then, the rotating seat 2 is rotated so that each connection hole on the tower to be installed corresponds one-to-one with each connection hole on the installed tower.

[0041] The stabilizing power unit 42 drives all the stabilizing diagonal braces 412 to swing synchronously in the opposite direction, causing the conical frame to contract and gradually reduce the support height of the conical frame. With the assistance of the correction component 5, the tower to be installed can be vertically and concentrically approached by the installed tower until the end of the stabilizing diagonal brace 412 swings into the interior of the installed tower, so that the tower to be installed can be stably and concentrically connected with the installed tower, so that each connecting bolt can be smoothly inserted into the connecting hole of the two connected towers.

[0042] Based on the above analysis, the conical frame formed by the stabilizing diagonal brace 412 can stabilize the tower to be installed, and the conical frame, in conjunction with the correction component 5, can make the tower to be installed and the already installed tower coaxial. The contraction of the conical frame can bring the tower to be installed closer to the already installed tower, eliminating the need for a separate lifting structure to bring the tower to be installed closer to the already installed tower, thus making it easier for the tower to be installed to concentrically approach the already installed tower in a vertical state.

[0043] Reference Figure 3 and Figure 4 To prevent wear between the stabilizing brace 412 and the tower to be installed, a sliding chain 413 is rotatably wound around the stabilizing brace 412. Lubricating grease is applied between the sliding chain 413 and the stabilizing brace 412. The sliding chain 413 is formed by multiple chain plates 414 hinged together end to end.

[0044] The tower to be installed can abut against the chain plate 414. Since the chain plate 414 can slide relative to the stabilizing diagonal brace 412, when the tower to be installed moves down, the bottom end of the tower to be installed can slide relative to the stabilizing diagonal brace 412 by pushing the chain plate 414 to slide. This allows the sliding friction between the tower to be installed and the stabilizing diagonal brace 412 to be transformed into the sliding friction between the chain plate 414 and the stabilizing diagonal brace 412. Since the friction coefficient between the chain plate 414 and the stabilizing diagonal brace 412 can be reduced by lubricating grease, the wear generated between the tower to be installed and the stabilizing diagonal brace 412 is reduced.

[0045] Reference Figure 4 To prevent the bottom of the tower to be installed from damaging the hinge structure between two adjacent chain plates 414, a leaf spring 415 is provided between each of the two adjacent chain plates 414. The leaf spring 415 is arc-shaped and its two ends are slidably mounted on the two chain plates 414 respectively.

[0046] In this embodiment, both ends of the leaf spring 415 are fixedly connected to a slider 4151, and the slider 4151 is slidably disposed in the buffer groove 4141 opened on the chain plate 414.

[0047] The leaf spring 415 can prevent the bottom end of the tower to be installed from directly hitting the hinge structure between two adjacent chain plates 414, so as to protect the hinge structure between the two adjacent chain plates 414. The leaf spring 415 can also buffer the impact force of the tower to be installed. After the tower to be installed and the sliding chain 413 are in stable contact, the tower to be installed can push the leaf spring 415 to make the sliding chain 413 slide stably, so that the tower to be installed is not easy to have relative friction with the sliding chain 413.

[0048] Reference Figure 3 In order to enable the swing range of the stabilizing brace 412 to adapt to towers of different diameters, the stabilizing support rod 411 is a telescopic rod. The stabilizing assembly 4 also includes an adjusting power unit 43, which is connected to the rotating seat 2 and all the stabilizing support rods 411 respectively. The adjusting power unit 43 is used to drive all the stabilizing support rods 411 to extend to the same length.

[0049] Since the tower is usually tapered, the diameter of each section of the tower is different. The adjusting power unit 43 can drive the stabilizing support rod 411 to extend and retract, so as to adjust the height of the swing center of the stabilizing diagonal brace 412. In the case of the installed tower diameter being reduced, the adjusting power unit 43 can raise the height of the swing center of the stabilizing diagonal brace 412, so that the end of the stabilizing diagonal brace 412 can still be swung into the interior of the installed tower.

[0050] Reference Figure 3 and Figure 5 Specifically, the movable end of the stabilizing support rod 411 can only slide relative to the fixed end. In this embodiment, the movable end of the stabilizing support rod 411 is rectangular and is adapted to slide on the fixed end of the stabilizing support rod 411. The adjusting power unit 43 includes an adjusting screw 431. Multiple adjusting screws 431 are provided and are rotatably disposed on the fixed end of the stabilizing support rod 411 in a corresponding manner. The adjusting screws 431 are threaded through the movable end of the stabilizing support rod 411.

[0051] Reference Figure 5 and Figure 6A first gear 432 is fixedly connected to the adjusting screw 431. All the first gears 432 mesh with a gear ring 433 through a meshing notch 4111 on the fixed end of the stabilizing support rod 411. The gear ring 433 is rotatably connected to the rotating seat 2. The gear ring 433 meshes with a second gear 434. The second gear 434 is rotatably connected to the rotating seat 2. The second gear 434 is fixedly connected to a worm gear 435. The worm gear 435 meshes with a worm 436. The worm 436 is rotatably connected to the rotating seat 2. The worm 436 is fixedly connected to a handwheel 437.

[0052] Reference Figure 2 and Figure 6 In this embodiment, the gear ring 433, the second gear 434, the worm gear 435 and the worm 436 are all covered with a first dust cover 438, which is fixedly connected to the rotating seat 2.

[0053] When it is necessary to adjust the height of the swing center of the stabilizing diagonal brace 412, turn the handwheel 437. The handwheel 437 can drive the second gear 434 to rotate through the worm gear 436 and worm wheel 435 with self-locking function. The second gear 434 can drive the gear ring 433 to rotate. The gear ring 433 can synchronously drive all the first gears 432 to rotate. The first gears 432 can drive the adjusting screw 431 to rotate, so that all the stabilizing support rods 411 can be adjusted to the same height synchronously.

[0054] Specifically, refer to Figure 3 The stabilizing power unit 42 includes a stabilizing link 421, a stabilizing rocker arm 422, a stabilizing ring 423, and a stabilizing drive cylinder 424.

[0055] Multiple stabilizing connecting rods 421 and stabilizing swing rods 422 are provided, and each corresponds to a stabilizing diagonal brace 412. The two ends of the stabilizing connecting rod 421 are hinged to the other end of the stabilizing diagonal brace 412 and one end of the stabilizing swing rod 422, respectively. The other end of the stabilizing swing rod 422 is hinged to the rotating seat 2. The stabilizing ring 423 is slidably disposed in the power groove 4221 opened on all the stabilizing swing rods 422. The radius of the stabilizing ring 423 is greater than the distance from the hinge point between the stabilizing swing rod 422 and the rotating seat 2 to the center of the rotating seat 2. Multiple stabilizing drive cylinders 424 are provided, and each is connected between the stabilizing ring 423 and the rotating seat 2.

[0056] In this embodiment, the stabilizing drive cylinder 424 is a multi-stage hydraulic cylinder. The fixed end of the stabilizing drive cylinder 424 is fixedly connected to the rotating seat 2, and the smallest stage movable end of the stabilizing drive cylinder 424 is fixedly connected to the stabilizing ring 423. Multiple stabilizing drive cylinders 424 and stabilizing rocker arm 422 are arranged alternately.

[0057] The stabilizing drive cylinder 424 can drive the stabilizing ring 423 to move up and down. Since the radius of the stabilizing ring 423 is greater than the distance from the hinge point between the stabilizing rocker arm 422 and the rotating seat 2 to the center of the rotating seat 2, when the stabilizing ring 423 moves up, the stabilizing ring 423 can gather all the stabilizing rocker arms 422, causing the stabilizing connecting rod 421 to swing down, thereby driving the stabilizing diagonal brace 412 to swing down. When the stabilizing ring 423 moves down, the stabilizing ring 423 can disperse all the stabilizing rocker arms 422, causing the stabilizing connecting rod 421 to swing up, thereby driving the stabilizing diagonal brace 412 to swing up, so that all the stabilizing diagonal braces 412 can swing up and down synchronously.

[0058] Specifically, refer to Figure 2 The correction assembly 5 includes a correction support cylinder 51, a correction rod 52, a correction connecting rod 53, and a correction power cylinder 54.

[0059] The correction support cylinder 51 is fixedly connected to the rotating seat 2. Multiple correction rods 52 are arranged around the correction support cylinder 51. One end of the correction rod 52 is hinged to the top of the correction support cylinder 51. Multiple correction connecting rods 53 are arranged, and they correspond one-to-one with the correction rods 52. The two ends of the correction connecting rods 53 are respectively hinged to the middle part of the correction rod 52 and the movable end of the correction power cylinder 54. The correction power cylinder 54 is located inside the correction support cylinder 51 and is connected to the correction support cylinder 51.

[0060] In this embodiment, the correction power cylinder 54 is a hydraulic cylinder, and the fixed end of the correction power cylinder 54 is fixedly connected to the correction support cylinder 51. When the correction power cylinder 54 extends, all the correction rods 52 rotate synchronously in a direction away from the central axis of the correction support cylinder 51 until all the correction rods 52 abut against the inner wall of the tower to be installed.

[0061] Once the tower to be installed is stably placed on the conical frame, the correction power cylinder 54 extends to drive the correction connecting rod 53 to swing. The correction connecting rod 53 drives the correction rod 52 to rotate away from the central axis of the correction support cylinder 51, so that the end of the correction rod 52 can approach the inner wall of the tower to be installed. The correction rod 52 can push the tower to be installed to swing. When all the correction rods 52 are in contact with the inner wall of the tower to be installed, the tower to be installed can be in a vertical state, so that the tower to be installed can be concentrically connected with the installed tower.

[0062] Reference Figure 2 In order to facilitate the downward movement of the tower to be installed with the swing of the stabilizing brace 412, the end of the correction rod 52 away from the correction support cylinder 51 is rotatably connected to a roller 55.

[0063] The end of the correction rod 52 abuts against the inner wall of the tower to be installed via a roller 55, so that the sliding friction between the correction rod 52 and the tower can be transformed into the rolling friction between the roller 55 and the inner wall of the tower, making it less likely for wear to occur between the correction rod 52 and the tower.

[0064] Specifically, refer to Figure 2 The positioning component 3 includes a positioning rod 31 and a positioning power unit 32.

[0065] Multiple positioning rods 31 are arranged around the support base 1. The positioning rods 31 slide through the support base 1 in a direction close to or away from the center of the support base 1. The positioning power unit 32 is connected to the support base 1 and all the positioning rods 31 respectively. The positioning power unit 32 is used to drive all the positioning rods 31 to slide synchronously.

[0066] Since the positioning power unit 32 can synchronously drive all the positioning rods 31 to slide, when all the positioning rods 31 are in contact with the inner wall of the installed tower, the support base 1 can be located exactly at the center of the installed tower, so that the support base 1 can be positioned and fixed.

[0067] Specifically, refer to Figure 7 The positioning power unit 32 includes an arc-shaped tooth 321, a positioning ring plate 322, and a positioning motor 323.

[0068] Multiple sets of arc-shaped teeth 321 are provided and connected one-to-one to the positioning rod 31. Each set of arc-shaped teeth 321 has multiple sets, and the multiple arc-shaped teeth 321 are arranged along the sliding direction of the positioning rod 31. The positioning ring plate 322 is rotatably connected to the support base 1. The positioning ring plate 322 has a spiral groove 3221. The arc-shaped teeth 321 are used to slide in the spiral groove 3221. The positioning motor 323 is fixedly connected to the support base 1. The output shaft of the positioning motor 323 is connected to the positioning ring plate 322 through a bevel gear set.

[0069] Reference Figure 2 and Figure 7 In this embodiment, a second dustproof shell 324 is provided on the bevel gear set between the positioning motor 323 and the positioning ring plate 322, and the second dustproof shell 324 is fixedly connected to the support base 1.

[0070] The positioning motor 323 can drive the positioning ring plate 322 to rotate through the bevel gear set. The positioning ring plate 322 can synchronously drive all the positioning rods 31 to slide through the spiral groove 3221 and the arc tooth 321, so that the positioning rods 31 can easily position and fix the support base 1.

[0071] The implementation principle of a docking device for wind turbine tower installation according to an embodiment of this application is as follows: In use, the support base 1 is installed at the center position of the top of the installed tower through the positioning component 3. The stabilizing power unit 42 drives the conical frame formed by the stabilizing diagonal brace 412 to unfold, so that the tower to be installed can be stably placed on the conical frame. The correction power cylinder 54 drives the correction rod 52 to swing with the correction support cylinder 51 as support, so that all the correction rods 52 abut against the inner wall of the tower to be installed, so that the tower to be installed can be in a vertical state. The rotating base 2 is rotated so that the connection holes of the two towers correspond one by one. The stabilizing power unit 42 drives the conical frame to retract, so that the tower to be installed can approach the installed tower. Thus, under the joint action of the stabilizing diagonal brace 412 and the correction rod 52, the tower to be installed can easily approach the installed tower in a vertical state concentrically.

[0072] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A docking device for installing wind turbine towers, characterized in that: It includes a support base (1), a rotating base (2), a positioning component (3), a stabilizing component (4), and a correction component (5). The rotating base (2) is rotatably connected to the support base (1). The positioning component (3) is set on the support base (1). The positioning component (3) is used to support the support base (1) at the center position of the top of the installed tower. The stabilizing component (4) includes a stabilizing unit (41) and a stabilizing power unit (42). Multiple stabilizing units (41) are arranged around the axis of the rotating seat (2). Each stabilizing unit (41) includes a stabilizing support rod (411) and a stabilizing diagonal brace (412). One end of the stabilizing support rod (411) is connected to the rotating seat (2), and one end of the stabilizing diagonal brace (412) is hinged to the other end of the stabilizing support rod (411). The stabilizing diagonal brace (412) of each stabilizing unit (41) has the same included angle with the stabilizing support rod (411). All the stabilizing diagonal braces (412) together form a conical frame. The stabilizing power unit (42) is connected to the rotating seat (2) and the other end of all the stabilizing diagonal braces (412). The stabilizing power unit (42) is used to drive all the stabilizing diagonal braces (412) to swing synchronously at the same angle. The other end of the stabilizing diagonal braces (412) can be just inserted into the interior of the installed tower. The correction component (5) is set on the rotating seat (2). After the bottom end of the tower to be installed is stably placed on the conical frame, the correction component (5) is used to make the tower to be installed swing to a vertical state.

2. The docking device for wind turbine tower installation according to claim 1, characterized in that: A sliding chain (413) is rotatably wound around the stabilizing diagonal brace (412). Lubricating grease is applied between the sliding chain (413) and the stabilizing diagonal brace (412). The sliding chain (413) is formed by hinged end to end of multiple chain plates (414).

3. The docking device for wind turbine tower installation according to claim 2, characterized in that: A leaf spring (415) is provided between each of the two adjacent chain plates (414). The leaf spring (415) is arc-shaped and its two ends are slidably disposed on the two chain plates (414).

4. The docking device for wind turbine tower installation according to claim 1, characterized in that: The stabilizing support rod (411) is a telescopic rod. The stabilizing assembly (4) also includes an adjusting power unit (43). The adjusting power unit (43) is connected to the rotating seat (2) and all the stabilizing support rods (411) respectively. The adjusting power unit (43) is used to drive all the stabilizing support rods (411) to extend to the same length.

5. A docking device for wind turbine tower installation according to claim 4, characterized in that: The movable end of the stabilizing support rod (411) can only slide relative to the fixed end. The adjusting power unit (43) includes adjusting screws (431), and multiple adjusting screws (431) are provided, each corresponding to a fixed end of the stabilizing support rod (411). The adjusting screws (431) are threaded through the movable end of the stabilizing support rod (411), and first gears (432) are connected to the adjusting screws (431). All the first gears (432) pass through the stabilizing support rod (411). The meshing notch (4111) on the fixed end meshes with a gear ring (433), which is rotatably connected to the rotating seat (2). The gear ring (433) meshes with a second gear (434), which is rotatably connected to the rotating seat (2). The second gear (434) is connected to a worm gear (435), which meshes with a worm (436). The worm (436) is rotatably connected to the rotating seat (2), and the worm (436) is connected to a handwheel (437).

6. A docking device for wind turbine tower installation according to claim 1, characterized in that: The stabilizing power unit (42) includes a stabilizing link (421), a stabilizing swing rod (422), a stabilizing ring (423), and a stabilizing drive cylinder (424). Multiple stabilizing links (421) and stabilizing swing rods (422) are provided, and each corresponds to a stabilizing diagonal brace (412). The two ends of the stabilizing link (421) are hinged to the other end of the stabilizing diagonal brace (412) and one end of the stabilizing swing rod (422), respectively. The other end of the stabilizing swing rod (422) is hinged to the rotating seat (2). The stabilizing ring (423) is slidably disposed in the power groove (4221) opened on all the stabilizing swing rods (422). The radius of the stabilizing ring (423) is greater than the distance from the hinge point between the stabilizing swing rod (422) and the rotating seat (2) to the center of the rotating seat (2). Multiple stabilizing drive cylinders (424) are provided, and each is connected between the stabilizing ring (423) and the rotating seat (2).

7. A docking device for wind turbine tower installation according to claim 1, characterized in that: The correction assembly (5) includes a correction support cylinder (51), a correction rod (52), a correction connecting rod (53), and a correction power cylinder (54). The correction support cylinder (51) is connected to the rotating seat (2). Multiple correction rods (52) are arranged around the correction support cylinder (51). One end of the correction rod (52) is hinged to the top of the correction support cylinder (51). Multiple correction connecting rods (53) are arranged and correspond one-to-one with the correction rods (52). The two ends of the correction connecting rods (53) are respectively hinged to the middle part of the correction rod (52) and the movable end of the correction power cylinder (54). The correction power cylinder (54) is located inside the correction support cylinder (51) and is connected to the correction support cylinder (51).

8. A docking device for wind turbine tower installation according to claim 7, characterized in that: The end of the correction rod (52) away from the correction support cylinder (51) is rotatably connected to a roller (55).

9. A docking device for wind turbine tower installation according to claim 1, characterized in that: The positioning component (3) includes a positioning rod (31) and a positioning power unit (32). Multiple positioning rods (31) are arranged around the support base (1). The positioning rods (31) slide along the support base (1) in a direction close to or away from the center of the support base (1). The positioning power unit (32) is connected to the support base (1) and all the positioning rods (31) respectively. The positioning power unit (32) is used to drive all the positioning rods (31) to slide synchronously.

10. A docking device for wind turbine tower installation according to claim 9, characterized in that: The positioning power unit (32) includes arc-shaped teeth (321), a positioning ring plate (322), and a positioning motor (323). Multiple sets of arc-shaped teeth (321) are provided and are connected to the positioning rod (31) one by one. Each set of arc-shaped teeth (321) has multiple sets. The positioning ring plate (322) is rotatably connected to the support base (1). The positioning ring plate (322) has a spiral groove (3221) and the arc-shaped teeth (321) are used to slide in the spiral groove (3221). The positioning motor (323) is connected to the support base (1) and the output shaft of the positioning motor (323) is connected to the positioning ring plate (322) for transmission.

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