Lifting tool, unit installation system and installation method of wind turbine generator

Abstract

The invention provides a lifting tool, a unit installation system and an installation method of a wind turbine generator. The lifting tool comprises a base, a supporting platform and a connecting assembly, and the base is used for being connected to a unit installation ship; the supporting platform is used for supporting a transport ship, and the supporting platform is provided with a supporting face capable of being matched with the transport ship. The connecting assembly is connected between the base and the supporting platform, the connecting assembly can drive the supporting platform to be longitudinally lifted relative to the base so that the transport ship can leave the water surface, the problem that the transport ship shakes is solved, and conditions are created for directly hoisting unit components from the transport ship; and unit components can be directly lifted from the transport ship without being reversely barged to the unit installation ship, so that the installation efficiency of the wind generating set is improved.

Description

Technical Field

[0001] The present invention relates to auxiliary tooling for a wind turbine generator set, and in particular to a lifting tooling, a unit installation system, and a method for installing a wind turbine generator set. Background Art

[0002] As wind power generation becomes increasingly popular, people are paying more and more attention to how to reduce the installation cost of wind turbines, such as offshore wind turbines.

[0003] At present, the transportation and installation of offshore wind turbines are completed by transport ships and unit installation ships respectively. Transport ships are mainly used to load wind turbine unit components, such as blades, hubs or tower sections, to transport the unit components to offshore installation sites. Unit installation ships are mainly used for hoisting wind turbines.

[0004] Since the transport ship shakes a lot and does not meet the conditions for lifting the unit components, the installation of offshore wind turbines requires the cooperation of the transport ship and the unit installation ship. Specifically, when the transport ship loaded with unit components arrives at the offshore machine site, the unit installation ship uses a crane to transfer the unit components from the transport ship to the deck of the unit installation ship one by one, and then uses the unit installation ship to complete the lifting of the wind turbine.

[0005] In the above process, the unloading of the unit components takes a long time, which greatly affects the installation efficiency of the unit. Summary of the invention

[0006] The main purpose of the present disclosure is to provide a lifting tool, a unit installation system and a method for installing a wind turbine generator set, so as to improve the installation efficiency of the wind turbine generator set.

[0007] In view of the above objectives, the present disclosure provides the following technical solutions:

[0008] In one aspect of the present disclosure, there is provided a lifting tool suitable for the installation of offshore wind turbine generator sets, the lifting tool comprising a base, a support platform and a connecting assembly, the base being used to be connected to a unit installation ship; the support platform being used to support a transport ship, the support platform being provided with a supporting surface capable of matching with the transport ship; the connecting assembly being connected between the base and the support platform, the connecting assembly being capable of driving the support platform to be longitudinally lifted relative to the base so that the transport ship leaves the water surface.

[0009] According to an exemplary embodiment of the present disclosure, the connection assembly includes at least two connection units spaced apart along a first direction, one end of the connection unit is movably connected to the base, the distance between two adjacent connection units is adjustable, and the other end of each connection unit is provided with the support platform.

[0010] Optionally, the support platform is rotatably connected to the other end of the connection unit, so that the support platform can swing between the stowed position and the support position.

[0011] Specifically, the connecting unit includes a connecting seat, which is movably connected to the base along a first direction, and the lifting tool also includes a first driving component, which is used to drive the connecting seat to move relative to the base.

[0012] Furthermore, the base is provided with a guide member extending along the first direction, and the connecting seat is slidably connected to the guide member, so that the distance between two adjacent connecting units along the first direction is adjustable.

[0013] According to another exemplary embodiment of the present disclosure, the first driving assembly includes a first driving motor, a first gear and a first rack, the first rack extending along a first direction and being arranged on one of the base and the connecting base, the first driving motor being arranged on the other, and the first gear being connected to the output shaft of the first driving motor, and the first gear being meshingly connected to the first rack.

[0014] Optionally, the connecting unit also includes a connecting arm and a second driving assembly, the connecting arm extends longitudinally and is movably connected to the connecting base so as to be able to move longitudinally upward relative to the connecting base, the supporting platform is rotatably connected to the bottom end of the connecting arm, and the second driving assembly can drive the connecting arm to be lifted longitudinally relative to the connecting base.

[0015] Specifically, the second drive assembly includes a second drive motor, a second gear and a second rack, the second rack is longitudinally extended and arranged on one of the connecting arm and the connecting seat, the second drive motor is arranged on the other, and the second gear is connected to the output shaft of the second drive motor, and the second gear is meshed and connected with the second rack.

[0016] Furthermore, the support platform is connected to the connecting unit via a rotating shaft, and the lifting tool also includes a third drive assembly for driving the support platform to swing between a stowed position and a supporting position, the third drive assembly includes a third drive motor and a connecting rod assembly, one end of the connecting rod assembly is connected to the output shaft of the third drive motor, and the other end of the connecting rod assembly is rotatably connected to the support platform, and the output shaft of the third drive motor is parallel to the rotating shaft.

[0017] According to another exemplary embodiment of the present disclosure, the lifting tool further includes a locking pin assembly, which includes a motor, a telescopic locking pin and a locking hole, wherein the locking hole is arranged on one of the connecting unit and the supporting platform, and the telescopic locking pin is arranged on the other, and the motor can drive the telescopic locking pin to be inserted into or detached from the locking hole.

[0018] On the other hand, the present disclosure provides a unit installation system suitable for the installation of offshore wind turbines, the unit installation system comprising a transport ship, a unit installation ship and the lifting tool as described above, the transport ship is used to transport unit components of the wind turbine; the unit installation ship is used to provide a lifting platform for the wind turbine; the lifting tool is connected to the unit installation ship, the unit installation ship is provided with a supporting surface that can be fitted with the transport ship, and the transport ship can be connected to the unit installation ship with the help of the lifting tool.

[0019] In another aspect, the present disclosure provides a method for installing a wind turbine generator set, the method comprising the following steps:

[0020] Loading wind turbine generator set components onto transport ships;

[0021] Lifting the transport ship out of the water using the lifting tool as described above;

[0022] The unit components of the wind turbine generator set are hoisted from the transport ship.

[0023] The lifting tooling, unit installation system and wind turbine installation method provided by the present invention have at least the following beneficial effects: the lifting tooling can lift the transport ship off the sea surface, solving the problem of the transport ship shaking, creating conditions for directly lifting the unit components from the transport ship, and the unit components do not need to be barged to the unit installation ship, but can be directly lifted from the transport ship, thereby improving the installation efficiency of the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or other objects and advantages of the present disclosure will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0025] Figure 1 A structural diagram of a unit installation system provided for an exemplary embodiment of the present disclosure.

[0026] Figure 2 for Figure 1 The first-person structural diagram of the lifting tooling in the figure.

[0027] Figure 3 for Figure 1 The second perspective structural diagram of the lifting tooling.

[0028] Figure 4 for Figure 1 The third-person structural diagram of the lifting tooling in the figure.

[0029] Description of reference numerals:

[0030] 1. Lifting tooling; 2. Unit installation ship;

[0031] 3. Transport ships; 4. Unit components;

[0032] 5. Base;

[0033] 6. A first drive assembly; 7. A second drive assembly;

[0034] 8. Support platform; 9. Third drive assembly;

[0035] 10. Rotating axis; 11. Telescopic locking pin;

[0036] 12. Motor; 41. Connection unit;

[0037] 51. Guide member; 52. Reinforcement rib;

[0038] 61. A first driving motor; 62. A first gear;

[0039] 63. First rack; 71. Second drive motor;

[0040] 72. second gear; 73. second rack;

[0041] 81. bottom bracket; 91. third driving motor;

[0042] 92. Connecting rod assembly; 411. Connecting seat;

[0043] 412. Connecting arm. DETAILED DESCRIPTION

[0044] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the implementation of the present disclosure is limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0045] One aspect of the present disclosure provides a lifting tool 1 for lifting a transport ship 3 to get out of the sea surface, thereby avoiding the shaking of the transport ship 3 caused by waves, etc., so that the transport ship 3 can be stably and reliably in a stationary state, creating conditions for lifting the unit components 4.

[0046] The lifting tool 1 provided in this embodiment is suitable for the installation of offshore wind turbines, and is used to lift the transport ship 3 above the liquid surface to prevent the transport ship 3 from being impacted by waves, so that the transport ship 3 can be in a stationary state, thereby creating conditions for the lifting of the unit components 4.

[0047] The transport ship 3 is mainly used to transport the unit components 4 from the manufacturing site to the installation and hoisting site, for example but not limited to, the installation and hoisting site can be an offshore machine site, that is, it is mainly used to transport the unit components 4 before hoisting. The transport ship 3 can arrange ships of different tonnage and deck area according to different transported goods to carry out transportation operations, for example but not limited to, it is very convenient to transport wind power equipment. The unit components 4 in this embodiment generally include structures such as a tower, a wind turbine foundation, a wind turbine blade, a wind turbine hub, and a main engine.

[0048] The unit installation vessel 2 is a vessel mainly used for installing wind turbine generator sets at sea. The unit installation vessel 2 usually has a large tonnage and a strong lifting capacity, and can lift the huge wind turbine generator to the sea and fix it at a designated location. At the same time, the unit installation vessel 2 can also perform offshore maintenance and repairs.

[0049] Specifically, the lifting tool 1 includes a base 5, a support platform 8 and a connection assembly, wherein the base 5 is used to be connected to the unit installation ship 2. The support platform 8 is used to support the transport ship 3, and the support platform 8 is provided with a support surface that can match the transport ship 3, and the transport ship 3 can be stably connected to the support surface. The connection assembly is connected between the base 5 and the support platform 8, and the connection assembly can drive the support platform 8 to be longitudinally lifted relative to the base 5 so that the transport ship 3 leaves the water surface.

[0050] The base 5 is the main supporting structure of the entire lifting tool 1. The base 5 is connected to the deck of the unit installation ship 2. For example, but not limited to, the base 5 can be fixed to the deck by welding or fastener connection. In order to further improve the connection reliability between the base 5 and the deck, reinforcing ribs 52 are arranged around the base 5. The reinforcing ribs 52 are connected between the deck and the base 5, but not limited to this.

[0051] The present disclosure can connect the lifting tool 1 to the unit installation ship 2 to stably connect the transport ship 3 to the unit installation ship 2. Since the unit installation ship 2 can be in a stationary state, the transport ship 3 can be in a stationary state. Furthermore, since the lifting tool 1 can lift the transport ship 3 longitudinally to leave the sea surface, the transport ship 3 is prevented from being impacted by waves, thereby ensuring that the transport ship 3 can be in a stationary state, creating conditions for the unit component 4 to be directly hoisted from the transport ship 3.

[0052] In order to improve the connection reliability of the transport ship 3 and avoid accidental shaking of the transport ship 3, the connection assembly in this embodiment includes a first direction ( Figure 1 At least two connection units 41 are spaced apart (as indicated by the double arrows in the figure), one end of the connection unit 41 is movably connected to the base 5, the distance between two adjacent connection units 41 is adjustable, and a support platform 8 is provided at the other end of each connection unit 41.

[0053] In this embodiment, at least two connection units 41 are respectively connected to the transport ship 3 to support different parts of the transport ship 3, thereby improving the reliability of the transport ship 3 and preventing the transport ship 3 from shaking unexpectedly. In addition, each connection unit 41 is movably connected to the base 5, and the distance between two adjacent connection units 41 is adjustable, so that the connection assembly can adjust the position of the connection unit 41 according to the transport ship 3 to adapt to different transport ships 3, thereby improving the versatility of the lifting tool 1. For the convenience of description, this embodiment is described by taking the connection assembly including two connection units 41 as an example, but is not limited thereto.

[0054] In order to improve the ease of use of the lifting tool 1, the support platform 8 is configured to be able to swing between a stowed position and a supporting position. When the support platform 8 is in the stowed position, the lifting tool 1 occupies less space and will not affect the safety of the unit installation ship 2. As an example, the support platform 8 in this embodiment is plate-shaped, but not limited to this. When the support platform 8 is in the supporting position, that is, the support platform 8 extends horizontally, so that the transport ship 3 can move above the support platform 8. When the support platform 8 is in the stowed position, that is, the support platform 8 swings close to the connecting unit 41 to reduce the angle between the support platform 8 and the connecting unit 41. For example, but not limited to, in this embodiment, when the support platform 8 is in the stowed position, the support platform 8 extends approximately longitudinally, but not limited to this.

[0055] Reference Figures 2 to 4 A base 81 is provided above the support platform 8, and the base 81 is rotatably connected to the top of the support platform 8. The supporting surface is provided on the top surface of the base 81, and the base 81 is used to directly contact the bottom surface of the transport ship 3, but not limited to this.

[0056] In this embodiment, the bottom bracket 81 is rotatably connected to the support platform 8, so as to adapt to different transport ships 3, so that the bottom bracket 81 can adapt to the bottom surface shape of different transport ships 3, thereby further improving the versatility of the lifting tool 1. As an example, the bottom bracket 81 is connected to the support platform 8 through a universal joint, but it is not limited to this. In this embodiment, a plurality of bottom brackets 81 are provided on each support platform 8, but it is not limited to this.

[0057] Continuing to refer to the drawings, the connecting unit 41 includes a connecting seat 411 movably connected to the base 5 along a first direction. The lifting tool 1 also includes a first driving assembly 6 for driving the connecting seat 411 to move relative to the base 5 .

[0058] In this embodiment, the connection seat 411 is slidably disposed on the base 5 along the first direction, so that the distance between two adjacent connection seats 411 is adjustable, thereby adapting to different transport ships 3 and improving the versatility of the lifting tool 1.

[0059] In order to improve the movement accuracy of the connecting seat 411 , in this embodiment, the base 5 is provided with a guide member 51 extending along the first direction for guiding the movement of the connecting seat 411 , and the connecting seat 411 is slidably connected to the guide member 51 .

[0060] As an example, the guide member 51 includes a guide rail, and a guide groove matching the guide rail is provided on the connecting seat 411, and the connecting seat 411 is slidably connected to the guide rail through the sliding fit between the guide rail and the guide groove, but the invention is not limited thereto. In addition, the guide member 51 may also include a guide groove, but the invention is not limited thereto.

[0061] Reference Figure 3 The first driving assembly 6 includes a first driving motor 61, a first gear 62 and a first rack 63. The first rack 63 extends along the first direction and is arranged on one of the base 5 and the connecting base 411. The first driving motor 61 is arranged on the other, and the first gear 62 is connected to the output shaft of the first driving motor 61. The first gear 62 is meshed and connected with the first rack 63.

[0062] The first driving assembly 6 provided in the present disclosure drives the first gear 62 to rotate through the first driving motor 61, so that the first gear 62 can move along the extension direction of the first rack 63, so that the connecting seat 411 moves relative to the base 5. As an example, in this embodiment, the first rack 63 is arranged on the base 5, and the first gear 62 is installed on the connecting seat 411. The first gear 62 moves along the extension direction of the first rack 63, so that the connecting seat 411 moves relative to the base 5, but it is not limited to this. As needed, the first rack 63 can be arranged on the connecting seat 411, and the first gear 62 can be correspondingly installed on the base 5, but it is not limited to this.

[0063] In order to improve the reliability of the movement of the connection seat 411, each connection seat 411 is provided with a plurality of first gears 62, and the plurality of first gears 62 can share the same first rack 63. Specifically, the first rack 63 is provided below the connection seat 411 and extends along the first direction, and teeth are provided on both sides of the first rack 63 in the width direction, respectively, and the first gears 62 are symmetrically provided on both sides of the first rack 63 and meshed with the teeth.

[0064] For the convenience of description, this embodiment is described by taking the example that each connecting seat 411 is provided with four first gears 62, wherein two are provided on both sides of the connecting seat 411 along the first direction, and the two first gears 62 located on the same side of the connecting seat 411 are symmetrically arranged on both sides of the width direction of the first rack 63, but not limited to this.

[0065] The present disclosure realizes the movement of the connecting seat 411 relative to the base 5 by the coordinated movement of the first gear 62 and the first rack 63, but it is not limited to this. The first driving assembly 6 can also be a telescopic cylinder (not shown), which can be extended or shortened along the first direction, for example but not limited to, the cylinder body of the telescopic cylinder is connected to the base 5, and the telescopic rod is connected to the connecting seat 411, so that the connecting seat 411 is driven to move relative to the base 5 by the telescopic rod relative to the cylinder body, but it is not limited to this. In addition, the first driving assembly 6 can also be a screw assembly (not shown), for example but not limited to, the screw assembly extends along the first direction, but it is not limited to this.

[0066] Continuing to refer to the accompanying drawings, the connecting unit 41 also includes a connecting arm 412 and a second driving assembly 7. The connecting arm 412 extends longitudinally and is movably connected to the connecting seat 411 so as to be able to move longitudinally upward relative to the connecting seat 411. The supporting platform 8 is rotatably connected to the bottom end of the connecting arm 412, and the second driving assembly 7 can drive the connecting arm 412 to be longitudinally lifted relative to the connecting seat 411. In order to improve the movement reliability of the connecting arm 412, the connecting seat 411 is provided with a guide member, and the connecting arm 412 is movably arranged on the guide member, but not limited to this. As an example, the guide member can be a guide rail or a guide groove. As an example, the connecting arm 412 in this embodiment is made of an I-beam, but not limited to this.

[0067] The present disclosure can support different parts of the transport ship 3 through at least two connection units 41, so that the transport ship 3 can be stably supported on the connection components, thereby improving the reliability of the lifting tool 1.

[0068] In this embodiment, the connecting unit 41 includes a connecting seat 411 and a connecting arm 412 movably connected to the connecting seat 411. The connecting arm 412 can move longitudinally upward relative to the connecting seat 411 to drive the transport ship 3 to be lifted upward, so that the transport ship 3 can be out of the sea level and be in a stationary state. It can also drive the transport ship 3 to fall downward into the sea and return after the wind turbine generator set is hoisted.

[0069] This embodiment is movably connected to the base 5 via the connecting seat 411, so that the connecting unit 41 is movable relative to the base 5, so that the position of the connecting unit 41 can be adjusted, thereby adjusting the distance between adjacent connecting units 41 to adapt to different transport ships 3, thereby improving the versatility of the lifting tooling 1.

[0070] Continue to refer to Figures 1 to 4 The second driving assembly 7 includes a second driving motor 71, a second gear 72 and a second rack 73. The second rack 73 is longitudinally extended and arranged on one of the connecting arm 412 and the connecting seat 411. The second driving motor 71 is arranged on the other, and the second gear 72 is connected to the output shaft of the second driving motor 71. The second gear 72 is meshed and connected with the second rack 73.

[0071] The present invention drives the second gear 72 to move along the extension direction of the second rack 73 through the second drive motor 71, so that the connecting arm 412 can move relative to the connecting seat 411. In this embodiment, the second rack 73 extends longitudinally, so that the connecting arm 412 can move longitudinally relative to the connecting seat 411, so as to drive the supporting platform 8 to move longitudinally upward, thereby driving the transport ship 3 to be lifted to break away from the sea level.

[0072] As an example, each connecting unit 41 is provided with two second racks 73 , and the two second racks 73 are provided on both sides of the connecting arm 412 along the first direction, but the present invention is not limited thereto.

[0073] Specifically, the connecting seat 411 is provided with a longitudinal through hole, the connecting arm 412 is movably arranged in the through hole, the second gear 72 is installed on the connecting seat 411, and the second rack 73 is arranged on the connecting arm 412. The second drive motor 71 can drive the second gear 72 to rotate, and the power of the second drive motor 71 is transmitted to the connecting arm 412 through the engagement of the second gear 72 and the second rack 73, thereby driving the connecting arm 412 to move longitudinally relative to the connecting seat 411, but not limited to this. The second gear 72 can be installed on the connecting arm 412 and the second rack 73 can be installed on the connecting seat 411 as needed, but not limited to this.

[0074] Continue to refer to Figure 2 and Figure 4 The support platform 8 is connected to the connection unit 41 through the rotating shaft 10, that is, connected to the bottom end of the connecting arm 412 through the rotating shaft 10. The lifting tool 1 also includes a third driving assembly 9 for driving the support platform 8 to swing between the stowed position and the supporting position. The third driving assembly 9 includes a third driving motor 91 and a connecting rod assembly 92. One end of the connecting rod assembly 92 is connected to the output shaft of the third driving motor 91, and the other end of the connecting rod assembly 92 is rotatably connected to the support platform 8. The output shaft of the third driving motor 91 is parallel to the rotating shaft 10, so that the connecting rod assembly 92 is driven to swing by the rotation of the third driving motor 91, thereby driving the support platform 8 to swing relative to the connecting arm 412. In addition, the third driving motor 91 can also be replaced by a hydraulic cylinder drive.

[0075] In this embodiment, the connecting rod assembly 92 includes a first connecting rod and a second connecting rod connected to each other, the first end of the first connecting rod is fixed to the output shaft of the third driving motor 91, the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod, and the second end of the second connecting rod is rotatably connected to the supporting platform 8, but the present invention is not limited thereto. As an example, the third driving motor 91 is mounted on the connecting arm 412, but the present invention is not limited thereto.

[0076] In order to further improve the reliability of the lifting tool 1, continue to refer to Figure 3 and Figure 4 The lifting tool 1 further includes a locking pin assembly, which includes a motor 12, a telescopic locking pin 11 and a locking hole. The locking hole is provided on one of the connecting unit 41 and the supporting platform 8, and the telescopic locking pin 11 is provided on the other. The motor 12 can drive the telescopic locking pin 11 to be inserted into the locking hole or to be disengaged from the locking hole. In order to improve the convenience of use of the lifting tool 1, the locking pin assembly can be remotely controlled.

[0077] For the convenience of description, this embodiment is described by taking the example that the telescopic locking pin 11 is arranged on the connecting arm 412 and the locking hole is arranged on the supporting platform 8, but the present invention is not limited thereto.

[0078] In order to improve the reliability of the support platform 8 and avoid accidental shaking of the support platform 8, when the support platform 8 is in the supporting position, the motor 12 can drive the telescopic locking pin 11 to be inserted into the locking hole, so that the support platform 8 and the connecting arm 412 are connected through the rotating shaft 10 and the telescopic locking pin 11, thereby avoiding accidental swinging of the support platform 8 relative to the connecting arm 412, thereby improving the reliability of the support platform 8.

[0079] As an example, the supporting platform 8 is provided with a first locking hole, and when the supporting platform 8 is in the supporting position, the telescopic locking pin 11 is inserted into the first locking hole.

[0080] Furthermore, in order to further improve the reliability of the support platform 8, the support platform 8 is provided with a second locking hole. When the support platform 8 is in the retracted position, the telescopic locking pin 11 is inserted into the second locking hole.

[0081] Specifically, when the support platform 8 needs to swing from the support position to the stowed position, the motor 12 is started to pull the telescopic lock pin 11 out of the first lock hole to release the lock of the lock pin assembly, and the third drive assembly 9 is started to drive the support platform 8 to swing. When the support platform 8 moves to the stowed position, the motor 12 is started again to insert the telescopic lock pin 11 into the second lock hole.

[0082] In another aspect, the present disclosure provides a unit installation system suitable for the installation of offshore wind turbines, the unit installation system comprising a transport ship 3, a unit installation ship 2, and the lifting tool 1 as described above, the transport ship 3 being used to transport unit components 4 of the wind turbine. The unit installation ship 2 is used to provide a hoisting platform for the wind turbine. The lifting tool 1 is connected to the unit installation ship 2 so as to be able to lift the transport ship 3 out of the sea surface, the unit installation ship 2 is provided with a support surface that can fit with the transport ship 3, and the transport ship 3 can be connected to the unit installation ship 2 with the help of the lifting tool.

[0083] In another aspect, the present disclosure provides a method for installing a wind turbine generator set, the method comprising the following steps:

[0084] Loading the wind turbine generator set components 4 onto the transport ship 3;

[0085] The transport ship 3 is lifted out of the water using the lifting tool 1.

[0086] The wind turbine generator set component 4 is hoisted from the transport ship 3 to install the wind turbine generator set.

[0087] In the above installation method, the steps of using the lifting tool 1 to lift the transport ship 3 out of the water are specifically as follows: connecting the lifting tool 1 to the unit installation ship 2, moving the transport ship 3 to the top of the support platform 8 and connecting it to the support platform 8, and then lifting the support platform 8 to drive the transport ship 3 out of the water.

[0088] The lifting tool 1 provided in the present invention can assist the transport ship 3 in connecting to the unit installation ship 2, and can lift the transport ship 3 longitudinally to make the transport ship 3 leave the sea surface, thereby preventing the transport ship 3 from being impacted by waves, so that the transport ship 3 can be in a stationary state, creating conditions for the lifting of the unit components 4, that is, the unit components 4 can be directly lifted from the transport ship 3 at this time, avoiding the unit components 4 from being transferred from the transport ship 3 to the unit installation ship 2, thereby improving the installation efficiency of the wind turbine.

[0089] The lifting tool 1 provided by the present disclosure can greatly improve the installation efficiency of wind turbine generator sets and reduce the project construction period. The lifting tool 1 can lift the transport ship 3 off the sea surface. On the one hand, it can solve the problem of the shaking of the transport ship 3. The unit components 4 do not need to be barged to the unit installation ship 2, but can be directly lifted from the transport ship 3. On the other hand, the transport ship 3 can be directly positioned on the lifting tool 1 without anchoring and positioning itself. Even in weather with large swells, the transport ship 3 can still be moored and positioned near the unit installation ship 2. The unit lifting will not stop, and will not be limited by the size of the swells due to the limited bearing capacity of the anchor chain of the transport ship 3 as before.

[0090] The lifting tool 1 is easy to use. When the wind turbine generator set is hoisted, the supporting platform 8 of the lifting tool 1 can be extended to the supporting position, for example but not limited to, the supporting position can be a horizontal extension of the supporting platform 8. After the unit is hoisted, it can be recovered to the stowed position, for example but not limited to, the stowed position can be a roughly longitudinal extension of the supporting platform 8, which will not affect the safety of the unit installation ship 2. In this way, there is no need to frequently disassemble and assemble the lifting tool 1, which greatly improves the on-site construction efficiency.

[0091] The lifting tool 1 can meet the lifting needs of transport ships 3 of different sizes and can adapt to the lifting of transport ships 3 with different bottom surface shapes. The lifting tool 1 has strong versatility and avoids the increase in cost caused by the modification of the lifting tool 1.

[0092] In the description of the present disclosure, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0093] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0094] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0095] The features, structures or characteristics described in the present disclosure may be combined in one or more embodiments in any suitable manner. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

Claims

1. A lifting tool, characterized in that: Suitable for installation of offshore wind turbine generator sets, the lifting tool (1) comprises: A base (5) for connecting to a unit installation vessel (2); A support platform (8) for supporting the transport ship (3), the support platform (8) being provided with a support surface capable of matching the transport ship (3); A connection assembly is connected between the base (5) and the support platform (8), and the connection assembly can drive the support platform (8) to be longitudinally lifted relative to the base (5) so that the transport ship (3) leaves the water surface.

2. The lifting tool as claimed in claim 1, characterized in that: The connection assembly comprises at least two connection units (41) spaced apart along a first direction, one end of the connection unit (41) is movably connected to the base (5), the distance between two adjacent connection units (41) is adjustable, and the other end of each connection unit (41) is provided with the support platform (8).

3. The lifting tool as claimed in claim 2, characterized in that: The support platform (8) is rotatably connected to the other end of the connection unit (41), so that the support platform (8) can swing between a stowed position and a support position.

4. The lifting tool as claimed in claim 3, characterized in that: The connecting unit (41) includes a connecting seat (411), and the connecting seat (411) is movably connected to the base (5) along a first direction. The lifting tool also includes a first driving component (6), and the first driving component (6) is used to drive the connecting seat (411) to move relative to the base (5).

5. The lifting tool as claimed in claim 4, characterized in that: The base (5) is provided with a guide member (51) extending along a first direction, and the connecting seat (411) is slidably connected to the guide member (51), so that the distance between two adjacent connecting units (41) along the first direction is adjustable.

6. The lifting tool as claimed in claim 4, characterized in that: The first driving assembly (6) comprises a first driving motor (61), a first gear (62) and a first rack (63); the first rack (63) extends along a first direction and is arranged on one of the base (5) and the connecting seat (411); the first driving motor (61) is arranged on the other, and the first gear (62) is connected to the output shaft of the first driving motor (61); the first gear (62) is meshedly connected with the first rack (63).

7. The lifting tool as claimed in any one of claims 4 to 6, characterized in that: The connecting unit (41) further comprises a connecting arm (412) and a second driving assembly (7); the connecting arm (412) extends longitudinally and is movably connected to the connecting seat (411) so as to be able to move longitudinally upward relative to the connecting seat (411); the supporting platform (8) is rotatably connected to the bottom end of the connecting arm (412); and the second driving assembly (7) is able to drive the connecting arm (412) to be lifted longitudinally relative to the connecting seat (411).

8. The lifting tool as claimed in claim 7, characterized in that: The second driving assembly (7) comprises a second driving motor (71), a second gear (72) and a second rack (73); the second rack (73) is longitudinally extended and arranged on one of the connecting arm (412) and the connecting seat (411); the second driving motor (71) is arranged on the other, and the second gear (72) is connected to the output shaft of the second driving motor (71); the second gear (72) is meshingly connected with the second rack (73).

9. The lifting tool as claimed in claim 3, characterized in that: The support platform (8) is connected to the connection unit (41) via a rotating shaft (10), and the lifting tool also includes a third driving assembly (9) for driving the support platform (8) to swing between a stowed position and a supporting position, and the third driving assembly (9) includes a third driving motor (91) and a connecting rod assembly (92), one end of the connecting rod assembly (92) is connected to the output shaft of the third driving motor (91), and the other end of the connecting rod assembly (92) is rotatably connected to the support platform (8), and the output shaft of the third driving motor (91) is parallel to the rotating shaft (10).

10. The lifting tool according to claim 9, characterized in that: The lifting tool also includes a locking pin assembly, which includes a motor (12), a telescopic locking pin (11) and a locking hole, wherein the locking hole is arranged on one of the connecting unit (41) and the supporting platform (8), and the telescopic locking pin (11) is arranged on the other, and the motor (12) can drive the telescopic locking pin (11) to be inserted into the locking hole or to be disengaged from the locking hole.

11. A unit installation system, characterized in that: Suitable for installation of offshore wind turbine generator sets, the unit installation system includes: A transport ship (3) for transporting wind turbine generator set components (4); A unit installation vessel (2), used to provide a hoisting platform for the wind turbine generator set; The lifting tool (1) as described in any one of claims 1 to 10, wherein the lifting tool (1) is connected to the unit installation ship (2), the unit installation ship (2) is provided with a supporting surface capable of being fitted with the transport ship (3), and the transport ship (3) can be connected to the unit installation ship (2) with the aid of the lifting tool (1).

12. A method for installing a wind turbine generator set, characterized in that: The installation method comprises the following steps: Loading the wind turbine generator set components (4) onto the transport ship (3); Lifting the transport vessel (3) out of the water using the lifting tool (1) according to any one of claims 1 to 10; The unit components (4) of the wind turbine generator set are hoisted from the transport ship (3).

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