Splicing tool

Abstract

The invention relates to a splicing tool which comprises a support, the support comprises a support body and a guide part arranged on the support body, the guide part comprises a first end and a second end which are oppositely arranged in the first direction, and the second end protrudes out of the support body in the first direction; the lifting table is arranged on the support, the lifting table is located between the first end and the second end in the first direction and has the moving freedom degree relative to the support in the second direction, the lifting table can bear the tower section of the wind turbine generator, and the second direction intersects with the first direction; and the moving table comprises a first bearing mechanism and a limiting mechanism arranged on the first bearing mechanism, the first bearing mechanism is movably connected to the guiding part in the first direction and can reciprocate between the first end and the second end, and the limiting mechanism is used for fixing the tower section. According to the splicing tool provided by the embodiment of the invention, the mounting requirement of the high-capacity wind turbine generator can be met only by adopting a crane with a small size, and the construction cost of the high-capacity wind turbine generator is greatly reduced.

Description

Technical Field

[0001] The present application relates to the field of wind power technology, and in particular to a splicing tool. Background Art

[0002] The existing construction technology of offshore wind turbines is mainly to lift the tower section directly onto the offshore foundation by crane at the dock, and then transport the entire machine to the machine site by wet towing.

[0003] However, for large-capacity wind turbines above 10MW, the tower height of the wind turbine can reach about 100 meters. The lifting height and lifting weight requirements of the crane during the lifting process are very high. At present, there is no suitable large-scale crane to meet the requirements of the lifting of such large-capacity wind turbines. In addition, the carrying capacity of the wharf is limited. Even if a large-scale crane is used, the wharf needs to be further reinforced, which increases the cost. Summary of the invention

[0004] The present application provides a splicing tool that can reduce the performance requirements for the crane. Only a smaller crane is needed to meet the installation requirements of a large-capacity wind turbine set, thereby significantly reducing the construction cost of the large-capacity wind turbine set.

[0005] On the one hand, according to an embodiment of the present application, a splicing tool is proposed, including: a support, including a bracket and a guide portion arranged on the bracket, the guide portion including a first end and a second end arranged opposite to each other along a first direction, and the second end protrudes from the bracket along the first direction; a lifting platform, arranged on the support, the lifting platform is located between the first end and the second end along the first direction and has freedom of movement relative to the support in the second direction, the lifting platform can carry the tower section of the wind turbine generator set, and the second direction intersects with the first direction; a moving platform, including a first bearing mechanism and a limiting mechanism arranged on the first bearing mechanism, the first bearing mechanism is movably connected to the guide portion along the first direction, and can reciprocate between the first end and the second end, and the limiting mechanism is used to fix the tower section.

[0006] According to one aspect of the embodiment of the present application, a docking hole is provided on the first supporting mechanism, and the lifting platform can pass the tower segment through the docking hole along the second direction and transfer it to the moving platform.

[0007] According to one aspect of the embodiment of the present application, the limiting mechanism includes a clamping assembly, which is connected to the first supporting mechanism. The clamping assembly at least partially extends into the docking hole and is used to clamp the tower section.

[0008] According to one aspect of the embodiment of the present application, the number of the clamping assemblies is more than two, and the more than two clamping assemblies are disposed on both sides of the first supporting mechanism along the second direction.

[0009] According to one aspect of an embodiment of the present application, each clamping assembly includes more than two clamping members, and the more than two clamping members are arranged at circumferential intervals along the docking hole; each clamping member includes a transition portion, a clamping portion and a first driving portion, the clamping portion is connected to the first supporting mechanism through the transition portion, and the first driving portion is used to drive the clamping portion to be arranged close to or away from the tower section.

[0010] According to one aspect of the embodiment of the present application, the clamping portion is movably connected to the adapter portion, and the first driving portion is used to drive the clamping portion to move relative to the adapter portion.

[0011] According to one aspect of an embodiment of the present application, a column is provided on the first supporting mechanism, and two or more first connecting holes arranged at intervals along the second direction are provided on the column, and a second connecting hole matching the first connecting hole is provided on the adapter. The clamping member also includes a connecting portion, which is passed through the second connecting hole and the first connecting hole and fixes the adapter to the column.

[0012] According to one aspect of the embodiment of the present application, a rotating shaft extending along the second direction is provided on the adapter portion, the clamping portions are arranged in pairs and rotatably connected to the rotating shaft, and the first driving portion is used to drive the paired clamping portions to open and close to coordinately clamp the tower segment.

[0013] According to one aspect of an embodiment of the present application, the adapter portion is movably connected to the first supporting mechanism, one end of the clamping portion is rotatably connected to the adapter portion, and the other end is rotated toward the docking hole along the moving direction of the adapter portion under the drive of the first driving portion.

[0014] According to one aspect of an embodiment of the present application, the lifting platform includes a second bearing mechanism and a second driving unit. The second bearing mechanism is arranged on a support and is used to bear the tower section. The second driving unit is used to drive the second bearing mechanism to move along the second direction.

[0015] According to one aspect of an embodiment of the present application, the splicing tooling also includes a distance sensor and a controller, the distance sensor is used to collect distance data between the guide part and the offshore foundation along the second direction, and the controller is used to control the second driving part to raise the second supporting mechanism to a preset height according to the distance data.

[0016] According to one aspect of the embodiment of the present application, the limiting mechanism includes a connecting flange, and along the second direction, the connecting flange is arranged on a side surface of the first supporting mechanism facing the lifting platform.

[0017] According to one aspect of an embodiment of the present application, the splicing tooling also includes a lifting assembly, which is arranged at the second end of the guide portion; the lifting assembly includes a winch and a lifting portion wound around the winch, the lifting portion is used to lift the tower section, and the lifting portion can lift the tower section along the second direction to the offshore foundation under the drive of the winch.

[0018] According to one aspect of the embodiment of the present application, the splicing tool also includes a third driving unit, which is used to drive the lifting assembly to rotate around its own axis, and the rotation axis of the lifting assembly is parallel to the second direction.

[0019] According to one aspect of an embodiment of the present application, the first bearing mechanism includes more than two bearing components and connecting parts, each bearing component is provided with an arc portion, two adjacent bearing components are spliced ​​with each other through the connecting part, and the arc portions of each bearing component are spliced ​​to form a docking hole.

[0020] According to one aspect of an embodiment of the present application, each supporting assembly includes a supporting member and a splicing member, the supporting member is movably connected to the guide portion along a first direction, the arc portion is arranged on the splicing member, and the connection position of the splicing member on the supporting member is adjustable to splice to form a docking hole with a preset aperture.

[0021] According to one aspect of the embodiment of the present application, the first bearing mechanism is further provided with a guide assembly, one end of the guide assembly is connected to the hole wall of the docking hole, and the other end abuts against the tower section.

[0022] According to one aspect of an embodiment of the present application, the bracket includes a first sub-bracket and a second sub-bracket. Along the first direction, the first sub-bracket is arranged at the first end of the guide portion, and the second sub-bracket is arranged on a side close to the second end relative to the first sub-bracket, and the second end protrudes from the second sub-bracket.

[0023] According to one aspect of the embodiment of the present application, the lifting platform is disposed at the first end portion and is slidably connected to the first sub-bracket along the second direction.

[0024] According to one aspect of the embodiment of the present application, the bracket further includes a third sub-bracket, one end of the third sub-bracket is connected to the second sub-bracket, and the other end of the third sub-bracket is connected to the second end of the guide portion.

[0025] The splicing fixture provided in the embodiment of the present application can be installed on the dock and form a second end protruding from the outer edge of the dock. By setting a lifting platform and a moving platform with intersecting moving paths in the splicing fixture, after the tower section is hoisted to the lifting platform, the tower section of the wind turbine can be moved along the second direction by the lifting platform and transported to the moving platform, and then the tower section is moved to the second end along the first direction by the moving platform, so as to realize the alignment installation of the tower section and the offshore foundation. Therefore, by setting the splicing fixture, the tower section can be installed on the offshore foundation by the splicing fixture, and the crane only needs to hoist the tower section to the splicing fixture, thereby reducing the performance requirements of the crane, and only a smaller type of crane is needed to meet the installation requirements of the wind turbine, which greatly reduces the construction cost of large-capacity wind turbines. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the structure of the wind turbine assembly according to an embodiment of the present application;

[0028] Figure 2 This is a structural schematic diagram of a splicing tool at one angle according to an embodiment of the present application;

[0029] Figure 3 This is a structural schematic diagram of a splicing tooling device according to an embodiment of the present application from another angle;

[0030] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0031] Figure 5 This is a structural schematic diagram of a splicing tool from another angle according to an embodiment of the present application;

[0032] Figure 6 yes Figure 5 The enlarged view of point B in the middle;

[0033] Figure 7 This is a structural schematic diagram of a splicing tool from another angle according to an embodiment of the present application;

[0034] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0035] Fig. 9 This is a structural schematic diagram of a splicing tool and an offshore foundation according to an embodiment of the present application;

[0036] Fig.10 It is a structural schematic diagram of a tower section installed on a splicing tooling according to an embodiment of the present application;

[0037] Fig.11 This is a structural schematic diagram of a splicing tool at one angle according to another embodiment of the present application;

[0038] Fig.12 is a structural schematic diagram of a splicing tool from another angle of another embodiment of the present application;

[0039] Fig.13 This is a structural schematic diagram of a splicing tool from another angle of another embodiment of the present application;

[0040] Fig.14 yes Fig.13 Enlarged view of point E in the middle;

[0041] Fig.15 It is a structural schematic diagram of a tower section installed on a splicing tooling according to an embodiment of the present application;

[0042] Fig.16 yes Fig.15 The enlarged view of F in the middle;

[0043] Fig.17 yes Fig.12 The enlarged view of point D in the middle;

[0044] Fig.18 is a structural schematic diagram of a splicing tool and an offshore foundation of another embodiment of the present application;

[0045] Fig.19 yes Fig.18 Enlarged view of point G in the middle.

[0046] In the attached figure:

[0047] 100-joining tooling; 200-tower section; 210-adapter block; 300-offshore foundation; 400-pier;

[0048] 1-support; 11-bracket; 111-first sub-bracket; 112-second sub-bracket; 113-third sub-bracket; 12-guide; 121-load-bearing beam; 1211-rack; 122-I-beam; 123-boss; 124-column; 13-structure box; 2-lifting platform; 21-second bearing mechanism; 22-second driving unit; 3-moving platform; 31-first bearing mechanism; 311-bearing assembly; 3111-bearing member; 3112-joining member; 3113-fourth driving unit; 3 12-connecting member; 313-column; 32-limiting mechanism; 321-clamping assembly; 3211-adapting part; 3212-clamping part; 32121-driving arm; 32122-clamping arm; 3213-first driving part; 3214-connecting part; 3215-rotating shaft; 3216-damping cylinder; 322-connecting flange; 33-guide assembly; 4-first distance sensor; 5-second distance sensor; 6-lifting assembly; 61-winch; 62-lifting part; 63-third driving part;

[0049] X-first direction; Z-second direction; Y-third direction.

[0050] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0051] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0052] The directional words appearing in the following description are all directions shown in the figure, and do not limit the splicing tooling of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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 directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0053] For the offshore construction of wind turbines, the existing assembly methods are mostly to divide the wind turbines into multiple tower sections, and then use cranes to lift the multiple tower sections one by one to the offshore foundation. However, as the height and weight of wind turbines gradually increase, there are currently no suitable large-scale cranes to meet the requirements of lifting the tower sections located above. In addition, the carrying capacity of the wharf is limited. Even if a large-scale crane is used, the wharf needs to be further reinforced, which increases costs.

[0054] In order to solve the above problems, the present application embodiment provides a splicing tool for assembling a large-capacity wind turbine set. Figures 1 to 19 The splicing tooling of the embodiment of the present application is described in detail.

[0055] See also Figure 1 and Figure 2 An embodiment of the present application provides a splicing tool 100, which includes a support 1, the support 1 includes a bracket 11 and a guide portion 12 arranged on the bracket 11, the guide portion 12 includes a first end and a second end arranged opposite to each other along a first direction X, and the second end is arranged to protrude from the bracket 11 along the first direction X.

[0056] Therefore, when it is necessary to construct a wind turbine, the bracket 11 of the splicing tool 100 can be first fixed on the ground of the dock 400 to realize the installation of the splicing tool 100 on the dock 400. Since the second end of the guide portion 12 of the splicing tool 100 protrudes from the bracket 11 along the first direction X, during installation, the bracket 11 can be installed on the outer edge of the dock 400, and the second end of the guide portion 12 of the splicing tool 100 can protrude from the outer edge of the dock 400, so that the second end corresponds to the installation position of the offshore foundation 300.

[0057] Among them, the splicing tooling 100 also includes a lifting platform 2 and a moving platform 3. The lifting platform 2 is arranged on the support 1. The lifting platform 2 is located between the first end and the second end along the first direction X and has freedom of movement relative to the support 1 in the second direction Z. The lifting platform 2 can carry the tower section 200 of the wind turbine generator set. The moving platform 3 includes a first bearing mechanism 31 and a limiting mechanism 32 arranged on the first bearing mechanism 31. The first bearing mechanism 31 is movably connected to the guide part 12 along the first direction X, and can reciprocate between the first end and the second end. The limiting mechanism 32 is used to fix the tower section 200.

[0058] By setting a lifting platform 2 and a moving platform 3 whose moving paths intersect in the splicing fixture 100, after the tower section 200 is hoisted to the lifting platform 2, the tower section 200 of the wind turbine can be moved along the second direction Z by the lifting platform 2 and transported to the moving platform 3, and then the tower section 200 is moved to the second end along the first direction X by the moving platform 3, so as to realize the alignment installation of the tower section 200 and the offshore foundation 300. Therefore, by setting the splicing fixture 100, the tower section 200 can be installed on the offshore foundation 300 by the splicing fixture 100, and the crane only needs to hoist the tower section 200 to the splicing fixture 100, thereby reducing the performance requirements of the crane, and only a smaller type of crane is needed to meet the installation requirements of the wind turbine, which greatly reduces the construction cost of large-capacity wind turbines.

[0059] Compared with directly hoisting the tower section 200 to the offshore foundation 300 by a crane, when the present application hoists the tower section 200 to the splicing fixture 100 by a crane, on the one hand, the crane can be directly moved to the vicinity of the splicing fixture 100 to hoist the tower section 200, thereby shortening the operating radius of the crane and reducing the lifting weight requirement for the crane. On the other hand, the crane only needs to hoist the tower section 200 to the lifting platform 2 of the splicing fixture 100, thereby reducing the lifting height requirement for the crane. Combining the above conditions, only a smaller model of crane is required to achieve the installation of the tower section 200 on the offshore foundation 300, thereby greatly reducing the construction cost of large-capacity wind turbines.

[0060] Moreover, since the installation requirements of offshore wind turbines can be met by using smaller cranes, there is no need for additional transformation and reinforcement of the dock foundation, which further reduces the construction cost of large-capacity wind turbines and makes it easier to promote and use.

[0061] For ease of description, the specific structure of the splicing tool 100 in one embodiment of the present application is explained below according to the transportation path of the tower segment 200 in the splicing tool 100.

[0062] See also Figure 2 In some optional embodiments, the bracket 11 includes a first sub-bracket 111 and a second sub-bracket 112. Along the first direction X, the first sub-bracket 111 is arranged at the first end of the guide portion 12, and the second sub-bracket 112 is arranged on a side close to the second end relative to the first sub-bracket 111, and the second end protrudes from the second sub-bracket 112.

[0063] First of all, the support 1 needs to have good support properties, so by making the support 11 include a first sub-support 111 and a second sub-support 112, which are respectively arranged at the first end and the second end, the movable platform 3 and the lifting platform 2 thereon can be well supported to avoid the splicing tooling 100 from overturning when the tower section 200 moves to the second end.

[0064] Further, the moving platform 3 is configured to be movable between a first end and a second end along a first direction X, and the lifting platform 2 is disposed at the first end and slidably connected to the first sub-bracket 111 along a second direction Z.

[0065] By setting the lifting platform 2 at the first end, on the one hand, the weight of the first end can be increased to better balance the splicing tooling 100 and improve the reliability of the splicing tooling 100. On the other hand, the first sub-bracket 111 can be used as a guide rail to ensure the reliability of the movement of the lifting platform 2.

[0066] Optionally, one of the first sub-bracket 111 and the lifting platform 2 may be provided with a convex portion, and the other may be provided with a concave portion, and the lifting platform 2 may be slidably arranged relative to the first sub-bracket 111 by matching the concave portion with the convex portion.

[0067] In some optional embodiments, the bracket 11 further includes a third sub-bracket 113, one end of the third sub-bracket 113 is connected to the second sub-bracket 112, and the other end is connected to the second end of the guide portion 12. By setting the third sub-bracket 113 as an oblique support, when the tower section 200 moves to the second end, the load on the second end can be supported, so as to ensure the reliability of the splicing tool 100.

[0068] Optionally, the first sub-bracket 111 and the second sub-bracket 112 are both connected to the ground of the dock 400 via a pad, and the pad can increase the contact area between the support 1 and the ground of the dock 400 to further ensure good support. The pad can be fixed to the ground of the dock 400 by bolts.

[0069] After the splicing tool 100 is installed on the ground of the dock 400 through the support 1, the tower section 200 can be hoisted onto the lifting platform 2 of the splicing tool 100 by a crane, so that the tower section 200 can be driven to move along the second direction Z by the lifting platform 2.

[0070] See also Figures 2 to 4 In some optional embodiments, the lifting platform 2 includes a second supporting mechanism 21 and a second driving unit 22. The second supporting mechanism 21 is arranged on the support 1 and is used to support the tower section 200. The second driving unit 22 is used to drive the second supporting mechanism 21 to move in the second direction Z.

[0071] That is, when the tower section 200 is hoisted to the lifting platform 2 by a crane, the tower section 200 can be set on the second supporting mechanism 21, so that the second supporting mechanism 21 is driven to move along the second direction Z by the second driving unit 22, thereby driving the tower section 200 set on the second supporting mechanism 21 to rise along the second direction Z to a preset height.

[0072] The second driving part 22 can be configured as a motor screw structure. Specifically, the support 1 can also be provided with a structural box 13, the motor is arranged in the structural box 13, the screw is extended along the second direction Z and its end extends into the structural box 13 and is connected to the motor, the second bearing mechanism 21 is threadedly connected to the screw and is movably connected to the first sub-bracket 111, so that when the motor drives the screw to rotate, it can drive the second bearing mechanism 21 to move along the second direction Z.

[0073] Optionally, the number of the lead screws is more than two, and the second bearing mechanism 21 is threadedly connected to each lead screw, so that the second bearing mechanism 21 is driven to move along the second direction Z by multiple lead screws, so as to ensure the reliability of the movement of the second bearing mechanism 21. For example, when the second bearing mechanism 21 is set as a rectangular structure, four lead screws can be provided, and the four lead screws are respectively provided at the four corners of the rectangular structure, so as to ensure that the second bearing mechanism 21 can drive the tower section 200 to rise stably along the second direction Z.

[0074] Among them, when the number of lead screws is more than two, the output end of the motor can be set as the central axis, the central axis extends along the first direction X and a plurality of first gears are coaxially arranged on the central axis, and the end of the lead screw can be connected to a second gear that is vertically meshed with the first gear, so that the motor can simultaneously drive the plurality of lead screws to rotate, thereby driving the second supporting mechanism 21 to drive the tower section 200 to rise stably along the second direction Z.

[0075] For example, when the number of lead screws is four, two motors may be provided, and two first gears are provided on the central axis of each motor output end. The four lead screws are matched with the same central axis in pairs, and the second gear provided at the end of the lead screw is vertically meshed with the first gear on the central axis. Thus, the two motors can synchronously act to drive the four lead screws to rotate simultaneously, so as to drive the second supporting mechanism 21 to drive the tower section 200 to rise stably along the second direction Z.

[0076] See also Figure 3 and Figure 4 In some optional embodiments, a flange is provided on the second supporting mechanism 21, so when the tower section 200 is hoisted to the second supporting mechanism 21 by a crane, the tower section 200 can be connected to the flange by bolts, thereby ensuring the stability of the tower section 200 when the second supporting mechanism 21 moves along the second direction Z.

[0077] See also Figure 4 and Figure 5 In order to further improve the stability of the tower section 200 during the lifting process, in some optional embodiments, the first bearing mechanism 31 is provided with a docking hole, and the lifting platform 2 can pass the tower section 200 through the docking hole along the second direction and transfer it to the moving platform 3. By providing the docking hole on the first bearing mechanism 31, when the second bearing mechanism 21 drives the tower section 200 to rise along the second direction Z, the tower section 200 can be limited by the docking hole, so as to further improve the reliability of the lifting of the tower section 200.

[0078] It is understandable that when a docking hole is provided on the mobile platform 3, since the tower segment 200 is inserted into the docking hole of the mobile platform 3, when the tower segment 200 is transported to the second end by the mobile platform 3, the tower segment 200 needs to be detached from the docking hole.

[0079] In this regard, in some optional embodiments, the first supporting mechanism 31 includes more than two supporting components 311 and connecting members 312, each supporting component 311 is provided with an arc-shaped portion, two adjacent supporting components 311 are spliced ​​with each other through the connecting member 312, and the arc-shaped portions of each supporting component 311 are spliced ​​to form a docking hole.

[0080] By configuring the first supporting mechanism 31 to include more than two supporting components 311 , after the tower section 200 is installed on the offshore foundation 300 , the two or more supporting components 311 can be separated by removing the connecting piece 312 , thereby allowing the tower section 200 to be withdrawn from the splicing tooling 100 .

[0081] Optionally, a fixing block may be provided on the docking area of ​​two adjacent bearing assemblies 311, and connection holes may be provided on the fixing blocks. The connecting member 312 may be provided as a long bolt, and the long bolt is sequentially passed through the connection holes on the two fixing blocks to splice the two adjacent bearing assemblies 311. After the tower section 200 is installed on the offshore foundation 300, the bearing assemblies 311 may be separated from each other by removing the long bolt.

[0082] See also Figure 5 and Figure 6 In some optional embodiments, each supporting component 311 includes a supporting member 3111 and a splicing member 3112, the supporting member 3111 is movably connected to the guide portion 12 along the first direction X, the arc portion is arranged on the splicing member 3112, and the connection position of the splicing member 3112 on the supporting member 3111 is adjustable to splice to form a docking hole with a preset aperture.

[0083] By setting the bearing assembly 311 as a bearing part 3111 and a splicing part 3112, the position relationship of the splicing part 3112 relative to the bearing part 3111 can be adjusted according to the diameter of the tower section 200 to be installed, thereby forming a docking hole with a preset aperture, so as to meet the installation requirements of offshore wind turbines of different models, avoid additional modification costs of the splicing tooling 100 due to the installation of offshore wind turbines of different models, and improve applicability.

[0084] Optionally, taking the example that there are two supporting components 311, which are symmetrically arranged on the guide portion 12 along the third direction Y, the third direction Y intersects with the first direction X and the second direction Z, and the arc portion can be provided with a side surface of the splicing piece 3112 along the third direction Y, and the splicing piece 3112 can be moved relative to the supporting component 3111 along the third direction Y, thereby adjusting the size of the docking hole.

[0085] Among them, a fourth driving part 3113 may be provided on the supporting member 3111 to drive the splicing part to move along the third direction Y through the fourth driving part 3113. The fourth driving part 3113 may be set as a motor screw structure. Specifically, the screw may be extended along the third direction Y and supported on the supporting member 3111 through an ear plate. The splicing tooling 100 may be extended with a roller to cooperate with the screw rotation through the roller. Therefore, when the screw is driven to rotate by the motor, the splicing part 3112 can be driven to move relative to the supporting member 3111 along the third direction Y, thereby adjusting the connection position of the splicing part 3112 relative to the supporting member 3111 to splice to form a docking hole with a preset aperture.

[0086] Specifically, after the tower section 200 is inserted into the docking hole by a crane, the position of the splicing component 3112 relative to the supporting component 3111 can be adjusted accordingly, so that a docking hole with a preset aperture can be formed corresponding to the corresponding tower section 200, so as to meet the installation requirements of offshore wind turbines of different models, avoid additional modification costs of the splicing tooling 100 due to the installation of offshore wind turbines of different models, and improve applicability.

[0087] See also Figure 5 and Figure 6 In some optional embodiments, the first bearing mechanism 31 is further provided with a guide assembly 33, one end of which is connected to the hole wall of the docking hole, and the other end of which is in contact with the tower section 200. Since the hole diameter of the docking hole is larger than the maximum diameter of the tower section 200, by providing the guide assembly 33, when the lifting platform 2 drives the tower section 200 to move along the second direction Z, the guide assembly 33 can be used as a guide, thereby further ensuring the reliability of the tower section 200 moving along the second direction Z.

[0088] It is understandable that, since the first bearing mechanism 31 is provided with more than two bearing assemblies 311, in order to ensure that the bearing assemblies 311 can be separated from each other, the guide assemblies 33 can be respectively provided on the bearing assemblies 311, and avoid the docking area of ​​the adjacent bearing assemblies 311. In addition, the number of the guide assemblies 33 can be set to more than two, and the more than two guide assemblies 33 are centrally symmetrically distributed relative to the hole center of the docking hole, thereby further ensuring the stable movement of the tower section 200 along the second direction Z.

[0089] Optionally, a small oil cylinder may be provided in the guide assembly 33, and a roller may be provided at the output end of the guide assembly 33, wherein a pressure sensor may also be provided on the guide assembly 33 for sensing the force between the roller and the tower section 200, thereby ensuring that during the process of the tower section 200 rising along the second direction Z, the small oil cylinder can push the roller to contact the surface of the tower section 200, thereby ensuring that the tower section 200 can move safely and stably.

[0090] After the tower section 200 is lifted to a preset height by the lifting platform 2 , the tower section 200 needs to be fixed by the limiting mechanism 32 on the moving platform 3 so as to transfer the tower section 200 from the lifting platform 2 to the moving platform 3 .

[0091] See also Figures 5 to 8 In some optional embodiments, the limiting mechanism 32 includes a clamping assembly 321, which is connected to the first supporting mechanism 31, and the clamping assembly 321 at least partially extends into the docking hole and is used to clamp the tower segment 200, so that sufficient clamping force is provided by the clamping assembly 321 to ensure that the tower segment 200 does not fall off the moving platform 3 when the moving platform 3 drives the tower segment 200 to move along the first direction X.

[0092] Optionally, the number of clamping assemblies 321 is more than two, and the more than two clamping assemblies 321 are arranged on both sides of the first supporting mechanism 31 along the second direction Z. By arranging the clamping assemblies 321 on the surface of the first supporting mechanism 31 along the second direction Z, the clamping force of the clamping assemblies 321 on the tower section 200 can be further increased to ensure the stable transportation of the tower section 200.

[0093] In some optional embodiments, each clamping assembly 321 includes more than two clamping members, and the more than two clamping members are arranged at circumferential intervals along the docking hole. Each clamping member includes a connecting portion 3211, a clamping portion 3212 and a first driving portion 3213. The clamping portion 3212 is connected to the first supporting mechanism 31 through the connecting portion 3211, and the first driving portion 3213 is used to drive the clamping portion 3212 to be close to or away from the tower section 200.

[0094] By providing more than two clamping members spaced circumferentially along the docking hole, multiple clamping points can be formed on the tower section 200 to further improve the clamping effect of the clamping assembly 321 on the tower section 200, and a redundant design can be formed to ensure the reliability and safety of the splicing tooling 100 during operation.

[0095] It is understandable that, similar to the guide assembly 33, since the first supporting mechanism 31 is provided with more than two supporting assemblies 311, in order to ensure that the supporting assemblies 311 can be separated from each other, the clamping members can be respectively arranged on the supporting assemblies 311 and avoid the docking areas of adjacent supporting assemblies 311.

[0096] See also Figure 4 and Figure 5 In some optional embodiments, the clamping portion 3212 is movably connected to the adapter portion 3211 , and the first driving portion 3213 is used to drive the clamping portion 3212 to move relative to the adapter portion 3211 .

[0097] Among them, the first driving part 3213 can be set as a motor screw structure. Specifically, the first driving part 3213 can be installed on the adapter part 3211. The adapter part 3211 can be provided with an ear plate, and the screw passes through the ear plate and extends toward the docking hole. The clamping part 3212 includes an intermediate shaft and a beam and a fitting block respectively arranged at both ends of the intermediate shaft. The fitting block can be provided with an arc surface for fitting with the tower section 200. The intermediate shaft passes through the adapter part 3211 and is threadedly connected with the screw through the beam, so that the screw is driven to rotate by the motor, and the clamping part 3212 can be driven as a whole to be close to or away from the docking hole through the beam.

[0098] Optionally, there are two screws, and the crossbeam of the clamping portion 3212 can be connected to the two screws at the same time, thereby ensuring that the first driving portion 3213 can reliably drive the clamping portion 3212 to move toward the docking hole and make the fitting block tightly fit on the outer wall surface of the tower section 200 to generate sufficient clamping force.

[0099] Optionally, a pressure sensor may be provided on the bonding block to provide real-time feedback of the clamping force of the clamping portion 3212 on the tower section 200 through the pressure sensor. When the clamping force generated by all bonding blocks reaches the designed input, the tower section 200 is driven to move along the first direction X through the moving portion.

[0100] In some optional embodiments, a column 313 is provided on the first supporting mechanism 31, and more than two first connecting holes arranged at intervals along the second direction Z are provided on the column 313, and a second connecting hole matching the first connecting hole is provided on the adapter 3211. The clamping member also includes a connecting portion 3214, and the connecting portion 3214 is passed through the second connecting hole and the first connecting hole and fixes the adapter 3211 on the column 313, so that the position of the clamping member along the second direction Z can be adjusted according to the tower sections 200 of different heights to ensure that the clamping portion 3212 can better fit the surface of the tower section 200 to achieve a better clamping effect.

[0101] In addition, the number of columns 313 is more than two, and the positions of the columns 313 and the clamping members in the circumferential direction are arranged one by one. One clamping member or multiple clamping members can be arranged on the same column 313, and the specific number can be adjusted according to the specific structure of the tower section 200 and the clamping assembly 321.

[0102] Optionally, the column 313 can be fixed to the first supporting mechanism 31 by bolts, the adapter part 3211 can be set as a slider, the connecting part 3214 can be set as a long bolt, the slider is sleeved on the outer periphery of the column 313 and can be moved along the second direction Z relative to the column 313, and when the slider moves to a predetermined position of the column 313 along the second direction Z, the long bolt can be inserted and tightened by a nut to fix the slider on the column 313.

[0103] In addition, the slider can be adjusted manually through the connection portion 3214, and can also be automatically adjusted through motor drive, gear rack 1211 transmission, etc.

[0104] See also Figure 7 and Figure 8 In some other optional embodiments, a rotating shaft 3215 extending along the second direction Z is provided on the adapter portion 3211, the clamping portions 3212 are arranged in pairs and rotatably connected to the rotating shaft 3215, and the first driving portion 3213 is used to drive the clamping portions 3212 arranged in pairs to open and close so as to coordinately clamp the tower segment 200.

[0105] Among them, the first driving part 3213 can be set as a motor screw structure, the screw is connected to the first supporting mechanism 31 through the ear plate and extends toward the docking hole, the clamping part 3212 may include an integral driving arm 32121 and a clamping arm 32122, the driving arms 32121 of the clamping parts 3212 arranged in pairs are arranged opposite to each other and connected to a slider, the slider is threadedly connected to the screw, and the motor drives the screw to rotate, so that the slider can move relative to the screw, thereby driving the clamping part 3212 to rotate around the rotating shaft 3215 through the slider to control the opening angle of the clamping member to achieve clamping of the tower section 200.

[0106] Furthermore, the adapter portion 3211 can be set as a main beam, which is spaced apart from the first supporting mechanism 31 along the second direction Z and connected to the first supporting mechanism 31 through the column 124. A rotating shaft 3215 is set at both ends of the main beam, and the clamping portions 3212 arranged in pairs are rotatably connected to the two ends of the main beam so as to be rotatably set around the two ends of the main beam under the drive of the first driving portion 3213.

[0107] Optionally, the clamping member may also be provided with a damping cylinder 3216 , and both ends of the damping cylinder 3216 are respectively connected to the clamping arms 32122 of the clamping parts 3212 arranged in pairs, so that the damping cylinder 3216 can buffer the opening and closing of the clamping member.

[0108] In addition, a pressure sensor may be provided on the clamping arm 32122 to provide real-time feedback of the force exerted by the clamping arm 32122 on the tower section 200 through the pressure sensor. When the clamping force generated by all clamping arms 32122 reaches the designed input, the tower section 200 is driven to move along the first direction X through the moving part.

[0109] It is understandable that, since there are more than two clamping assemblies 321, and the more than two clamping assemblies 321 are arranged on both sides of the first supporting mechanism 31 along the second direction Z, the specific structures of the more than two clamping assemblies 321 may be the same or different, that is, they can achieve stable clamping of the tower section 200.

[0110] After the tower section 200 is firmly clamped by the limiting mechanism 32, the tower section 200 can be detached from the flange of the lifting platform 2, so that the tower section 200 can be transferred from the lifting platform 2 to the moving platform 3. On this basis, the tower section 200 can be driven to move along the first direction X by the moving platform 3.

[0111] See also Figures 1 to 8In some optional embodiments, the guide portion 12 may include load-bearing beams 121 relatively arranged along the third direction Y, each load-bearing beam 121 extends along the first direction X and is supported on the bracket 11, the guide portion 12 also includes an I-beam 122 fixedly connected to the load-bearing beam 121, and the first bearing mechanism 31 is provided with a groove matching the I-beam 122, so that the first bearing mechanism 31 can be movably connected to the I-beam 122.

[0112] Among them, racks 1211 are arranged on the surfaces facing each other of the relatively arranged load-bearing beams 121, and a gear meshing with the rack 1211 is rotatably connected to the first supporting mechanism 31, so that by driving the gear to rotate, the first supporting mechanism 31 can be driven to move along the first direction X relative to the guide part 12.

[0113] Optionally, when the first supporting mechanism 31 is configured as a rectangular structure, the number of gears can be set to four and respectively disposed at the corners of the first supporting mechanism 31 , thereby serving as a redundant design to more reliably transport the first supporting mechanism 31 to the second end of the guide portion 12 .

[0114] In addition, the extreme moving position of the movable platform 3 can be limited by controlling the length of the rack 1211 along the first direction X, thereby preventing the movable platform 3 from being separated from the guide portion 12 and ensuring the reliable setting of the splicing tool 100.

[0115] It is understandable that when the tower section 200 is moved to the second end by the movable platform 3, the tower section 200 can be docked with the offshore foundation 300, but due to the influence of the tidal difference, the distance from the offshore foundation 300 along the second direction Z to the second end of the guide portion 12 is not always constant.

[0116] See also Fig. 9 and Fig.10 In order to ensure the docking of the tower section 200 and the offshore foundation 300, in some optional embodiments, the splicing tooling 100 also includes a distance sensor and a controller. The distance sensor is used to collect distance data between the guide part 12 and the offshore foundation 300 along the second direction Z, and the controller is used to control the second driving part 22 to raise the second supporting mechanism 21 to a preset height according to the distance data.

[0117] That is, by setting up a distance sensor, the distance data along the second direction Z between the guide part 12 and the offshore foundation 300 can be collected in real time, so as to control the rising height of the lifting platform 2 to ensure that when the tower section 200 is transported to the second end by the mobile platform 3, the tower section 200 can be directly docked on the offshore foundation 300.

[0118] It is understandable that since each low tide stage lasts for 2 to 3 hours, the transportation of the tower section 200 can be carried out during the low tide stage.

[0119] Optionally, distance sensors can be provided on both the offshore foundation 300 and the lifting platform 2. For ease of description, the distance sensor provided on the offshore foundation 300 is defined as the first distance sensor 4, and the sensor provided on the lifting platform 2 is defined as the second distance sensor 5. In actual installation, the first distance data between the offshore foundation 300 and the guide portion 12 along the second direction Z can be detected by the first distance sensor 4, and the first distance data can be fed back to the controller. The controller can obtain the value required by the second distance sensor 5 according to the conversion, so that in the process of the second driving portion 22 driving the second bearing mechanism 21 to rise, the second distance sensor 5 will output the second distance data in real time, and feed back the second distance data to the controller. When the controller detects that the second distance data is consistent with the value required by the second distance sensor 5 obtained by the conversion in the controller, the controller will send a stop command signal to the second driving portion 22 of the lifting platform 2, thereby controlling the lifting platform 2 to stop at a preset height. At this time, after the tower section 200 is transferred to the mobile platform 3 by the clamping assembly 321, the tower section 200 can correspond to the installation height of the offshore foundation 300, thereby realizing the installation of the offshore wind turbine.

[0120] See also Figures 11 to 19 Another embodiment of the present application further provides a splicing tool 100 , which is mainly different from the splicing tool 100 in the previous embodiment in terms of the limiting mechanism 32 .

[0121] See also Figures 11 to 16 In some optional embodiments, the limiting mechanism 32 includes a connecting flange 322, and the connecting flange 322 is arranged on a side surface of the first carrying mechanism 31 facing the lifting platform 2 along the second direction Z. Therefore, when the tower section 200 is lifted to the top by the lifting platform 2, that is, lifted to the lower surface of the first carrying mechanism 31, the tower section 200 can be connected to the connecting flange 322 of the first carrying mechanism 31 to transfer the tower section 200 from the lifting platform 2 to the moving platform 3.

[0122] Optionally, an additional outer flange may be provided on the tower wall below the tower section 200, and an adapter block 210 is connected to the outer flange by bolts. The adapter block 210 has a plurality of bolt holes spaced circumferentially thereon, so that when the tower section 200 is lifted to the top by the lifting platform 2, the tower section 200 can be fixed to the mobile platform 3 by passing bolts through the bolt holes on the adapter block 210 and the bolt holes on the connecting flange 322.

[0123] Among them, a guide pin can also be provided on the adapter block 210 to cooperate with the lifting platform 2 to ensure the position of the adapter block 210, so that when the tower section 200 is lifted to the top by the lifting platform 2, the bolt holes on the adapter block 210 can correspond one by one with the bolt holes on the connecting flange 322, which is more convenient for docking.

[0124] See also Fig.17 It can be understood that when the limiting mechanism 32 is set as a connecting flange 322, the first supporting mechanism 31 can also be provided with a clamping assembly 321 to further ensure the fixing effect of the tower section 200 while being connected through the connecting flange 322.

[0125] In some optional embodiments, the adapter 3211 is movably connected to the first bearing mechanism 31, one end of the clamping portion 3212 is rotatably connected to the adapter 3211, and the other end is rotatably arranged toward the docking hole along the moving direction of the adapter 3211 under the drive of the first driving portion 3213. By arranging the clamping member on the upper surface of the first bearing mechanism 31, the tower section 200 can be stabilized, thereby ensuring the reliability of the movement of the tower section 200.

[0126] Optionally, a slide rail may be provided on the first supporting mechanism 31, and the slide rail extends toward the docking hole. The adapter part 3211 may be provided as a slider, so that by driving the adapter part 3211 to move relative to the first supporting mechanism 31, the clamping part 3212 connected to the adapter part 3211 can be driven to move closer to or away from the docking hole, so as to move the clamping part 3212 to contact with the tower section 200. On this basis, the clamping part 3212 is connected to the ear plate at the front end of the slider through the bottom pin shaft, and the first driving part 3213 can be set as a hydraulic cylinder, one end of the hydraulic cylinder is connected to the slider through the pin shaft, and the other end is connected to the clamping part 3212 through the pin shaft, so that the hydraulic cylinder can work to make the clamping part 3212 rotate around the bottom pin shaft, so that it fits tightly with the outer wall surface of the tower section 200 and ensures sufficient clamping force. Therefore, on the basis of connecting the tower section 200 through the connecting flange 322, the tower section 200 is also clamped by the clamping assembly 321, so as to further ensure the safety of transportation of the tower section 200.

[0127] It should be noted that, in addition to being configured as a slide rail slider structure, the clamping component 321 can also be configured as any clamping component 321 in the previous embodiment, and the structures in the two embodiments can be replaced or combined with each other without conflict.

[0128] See also Fig.18 and Fig.19It can be understood that, since the tower section 200 is fixed to the mobile platform 3 through the connecting flange 322, in this case, the lifting height of the lifting platform 2 is fixed. In this regard, in order to ensure the docking of the tower section 200 with the offshore foundation 300, in some optional embodiments, the splicing tool 100 also includes a lifting component 6, which is arranged at the second end of the guide part 12. The lifting component 6 includes a winch 61 and a lifting part 62 wound around the winch 61. The lifting part 62 is used to lift the tower section 200, and the lifting part 62 can lift the tower section 200 along the second direction Z to the offshore foundation 300 under the drive of the winch 61.

[0129] By providing the lifting assembly 6 , when the tower section 200 moves to the second end, the tower section 200 can be lifted by the lifting part 62 to adjust the position of the tower section 200 along the second direction Z, thereby lifting the tower section 200 along the second direction Z to the offshore foundation 300 .

[0130] Among them, the second end of the guide part 12 can be provided with a boss 123 protruding along the third direction Y, and a column 124 can be rotatably connected to the boss 123. A fixed pulley can be provided on the column 124. The lifting part 62 can be set as a wire rope. The wire rope extends from the drum of the winch 61, passes through the fixed pulley and is used to connect with the adapter block 210 on the tower section 200. Therefore, when the tower section 200 is moved from the mobile platform 3 to the second end, the wire rope can be lowered by the winch 61 to connect with the adapter block 210 on the tower section 200. At this time, the bolts on the connecting flange 322 between the adapter block 210 and the mobile platform 3 can be removed, so that the tower section 200 is detached from the mobile platform 3 and hoisted to the second end through the lifting assembly 6. At this time, the length of the wire rope can be adjusted to correspond the tower section 200 to the offshore foundation 300 along the second direction Z, so that the tower section 200 can be installed on the offshore foundation 300.

[0131] See also Fig.18 and Fig.19 In some optional embodiments, the splicing tool 100 further includes a third driving unit 63, which is used to drive the lifting component 6 to rotate around its own axis, and the rotation axis of the lifting component 6 is parallel to the second direction Z.

[0132] Optionally, the column 124 can be rotated relative to the boss 123 by means of a worm gear, thereby controlling the lifting assembly 6 to rotate around its own axis to rotate the lifting part 62 to be directly above the adapter block 210 of the tower section 200 to facilitate the connection between the lifting part 62 and the adapter block 210.

[0133] In addition, more than two lifting assemblies 6 may be provided, and the more than two lifting assemblies 6 are relatively arranged on both sides of the guide portion 12 along the third direction Y, so that stability can be improved through multi-point lifting.

[0134] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A splicing tool, characterized in that: include: A support (1) comprises a support (11) and a guide portion (12) arranged on the support (11), the guide portion (12) comprising a first end portion and a second end portion arranged opposite to each other along a first direction, the second end portion being arranged to protrude from the support (11) along the first direction; A lifting platform (2) is arranged on the support (1), the lifting platform (2) is located between the first end and the second end along the first direction and has a degree of freedom of movement relative to the support (1) in a second direction, the lifting platform (2) is capable of carrying a tower section of a wind turbine generator set, and the second direction intersects with the first direction; The movable platform (3) comprises a first bearing mechanism (31) and a limiting mechanism (32) arranged on the first bearing mechanism (31); the first bearing mechanism (31) is movably connected to the guide portion (12) along the first direction and can reciprocate between a first end and a second end; and the limiting mechanism (32) is used to fix the tower section.

2. The splicing tool according to claim 1, characterized in that: The first carrying mechanism (31) is provided with a docking hole, and the lifting platform (2) can pass the tower section through the docking hole along the second direction and transfer it to the moving platform (3).

3. The splicing tool according to claim 2, characterized in that: The limiting mechanism (32) comprises a clamping assembly (321), the clamping assembly (321) is connected to the first bearing mechanism (31), and the clamping assembly (321) at least partially extends into the docking hole and is used to clamp the tower section.

4. The splicing tool according to claim 3, characterized in that: The number of the clamping assemblies (321) is more than two, and the more than two clamping assemblies (321) are arranged on both sides of the first bearing mechanism along the second direction.

5. The splicing tool according to claim 3, characterized in that: Each of the clamping assemblies (321) comprises more than two clamping members, and the more than two clamping members are arranged at intervals along the circumference of the docking hole; Each of the clamping members comprises a transition portion (3211), a clamping portion (3212) and a first driving portion (3213); the clamping portion (3212) is connected to the first supporting mechanism (31) via the transition portion (3211); and the first driving portion (3211) is used to drive the clamping portion (3212) to be disposed close to or away from the docking hole.

6. The splicing tool according to claim 5, characterized in that: The clamping portion (3212) is movably connected to the adapter portion (3211), and the first driving portion (3213) is used to drive the clamping portion (3212) to move relative to the adapter portion (3211).

7. The splicing tool according to claim 6, characterized in that: The first supporting mechanism (31) is provided with a column (313), and the column (313) is provided with more than two first connecting holes spaced apart along the second direction, and the adapter (3211) is provided with a second connecting hole matching the first connecting hole, and the clamping member further comprises a connecting portion (3214), and the connecting portion (3214) is passed through the second connecting hole and the first connecting hole and fixes the adapter (3211) to the column (313).

8. The splicing tool according to claim 5, characterized in that: The adapter part (3211) is provided with a rotating shaft (3215) extending along the second direction, the clamping parts (3212) are arranged in pairs and are rotatably connected to the rotating shaft (3215), and the first driving part (3213) is used to drive the clamping parts (3212) arranged in pairs to open and close, so as to cooperatively clamp the tower section.

9. The splicing tool according to claim 5, characterized in that: The adapter part (3211) is movably connected to the first supporting mechanism (31); one end of the clamping part (3212) is rotatably connected to the adapter part (3211); and the other end is driven by the first driving part (3213) to rotate toward the docking hole along the moving direction of the adapter part (3211).

10. The splicing tool according to claim 3, characterized in that: The lifting platform (2) comprises a second bearing mechanism (21) and a second driving unit (22); the second bearing mechanism (21) is arranged on the support (1) and is used to bear the tower section; the second driving unit (22) is used to drive the second bearing mechanism (21) to move along the second direction.

11. According to the splicing tooling according to claim 10, the splicing tooling also includes a distance sensor and a controller, the distance sensor is used to collect distance data between the guide part (12) and the offshore foundation along the second direction, and the controller is used to control the second driving part (22) to raise the second supporting mechanism (21) to a preset height according to the distance data.

12. The splicing tool according to claim 2, characterized in that: The limiting mechanism (32) comprises a connecting flange (322), and along the second direction, the connecting flange (322) is arranged on a side surface of the first supporting mechanism (31) facing the lifting platform (2).

13. The splicing tool according to claim 12, characterized in that: The splicing tool further comprises a lifting assembly (6), wherein the lifting assembly (6) is arranged at the second end of the guide portion (12); The lifting assembly (6) comprises a winch (61) and a lifting portion (62) wound around the winch (61), wherein the lifting portion (62) is used to lift the tower section, and the lifting portion (62) is driven by the winch (61) to hoist the tower section along the second direction to the offshore foundation.

14. The splicing tool according to claim 13, characterized in that: The splicing tool also includes a third driving unit (63), and the third driving unit (63) is used to drive the lifting component (6) to rotate around its own axis, and the rotation axis of the lifting component (6) is parallel to the second direction.

15. The splicing tool according to claim 2, characterized in that: The first bearing mechanism (31) comprises more than two bearing components (311) and a connecting member (312), each bearing component (311) being provided with an arc-shaped portion, two adjacent bearing components (311) being spliced ​​with each other via the connecting member (312), and the arc-shaped portions of each bearing component (311) being spliced ​​to form the docking hole.

16. The splicing tool according to claim 15, characterized in that: Each of the bearing components (311) comprises a bearing member (3111) and a splicing member (3112); the bearing member (3111) is movably connected to the guide portion (12) along the first direction; the arc portion is arranged on the splicing member (3112); and the connection position of the splicing member (3112) on the bearing member (3111) is adjustable so as to splice to form the docking hole with a preset aperture.

17. The splicing tool according to claim 2, characterized in that: The first bearing mechanism (31) is further provided with a guide assembly (33), one end of the guide assembly (33) is connected to the hole wall of the docking hole, and the other end is used to abut against the tower section.

18. The splicing tool according to claim 1, characterized in that: The bracket (11) comprises a first sub-bracket (111) and a second sub-bracket (112); along the first direction, the first sub-bracket (111) is arranged at a first end portion of the guide portion (12); the second sub-bracket (112) is arranged at a side close to the second end portion relative to the first sub-bracket (111), and the second end portion is arranged to protrude from the second sub-bracket (112).

19. The splicing tool according to claim 18, characterized in that: The lifting platform (2) is arranged at the first end and is slidably connected to the first sub-bracket (111) along the second direction.

20. The splicing tool according to claim 18, characterized in that: The bracket (11) further comprises a third sub-bracket (113), one end of the third sub-bracket (113) being connected to the second sub-bracket (112), and the other end of the third sub-bracket (113) being connected to the second end of the guide portion (12).

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