Self-climbing type hoisting equipment and method for installing wind generating set through self-climbing type hoisting equipment

Abstract

The invention discloses self-climbing type hoisting equipment and a method for installing a wind generating set through the self-climbing type hoisting equipment. The problem that when existing hoisting equipment conducts wind generating set building operation, the operation efficiency is low is solved. The device comprises a self-climbing telescopic mounting crane mounted on a transport vehicle and used for building a wind power tower; the self-climbing telescopic installation crane comprises a vertical arm and a hoisting horizontal arm, the vertical arm is detachably installed at the vehicle body position of the transport vehicle through a hydraulic lifter, one end of the vertical arm is detachably connected with the vehicle tail of the transport vehicle, and the other end of the vertical arm is rotationally connected with the hoisting horizontal arm; the self-climbing telescopic installation crane is connected with the wind power tower drum through the hoop assembly, the self-climbing telescopic installation crane can move upwards on the wind power tower drum, efficient installation of multiple sections of wind power tower drums, a cabin, a hub and fan blades is achieved, the wind power tower drum installation device has the advantages of being high in operation efficiency and saving time and labor, and the installation efficiency of the wind power tower drum is remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind power equipment, and in particular to a self-climbing hoisting device and a method for installing a wind turbine generator set. Background Art

[0002] The installation of wind turbines is a complex and costly process, especially as the tower height increases, traditional installation methods face many challenges.

[0003] A wind turbine generator set includes a wind tower, nacelle, hub and blades. In traditional technology, when building a wind turbine generator set, it is necessary to match the corresponding crane according to the height of the tower for installation and construction. The higher the tower height, the larger the matching construction crane is, and the higher the construction cost is. At the same time, the crane needs to be moved and reassembled frequently, which increases construction time and leads to low operating efficiency. Summary of the Invention

[0004] To this end, the present application provides a self-climbing hoisting device and a method for installing a wind turbine generator set, so as to solve the problem of low operating efficiency of existing hoisting equipment when performing wind turbine generator set construction operations.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] In a first aspect, a self-climbing hoisting device includes a self-climbing telescopic installation crane mounted on a transport vehicle, and is used to install a wind turbine generator set, wherein the wind turbine generator set includes a wind turbine tower, a nacelle, a hub, and blades;

[0007] The self-climbing telescopic installation crane includes a vertical arm and a lifting horizontal arm. The vertical arm is detachably mounted on the body of the transport vehicle through a hydraulic lifter, and one end of the vertical arm is detachably connected to the rear of the transport vehicle. The other end of the vertical arm is rotatably connected to the lifting horizontal arm. A hook is provided at the end of the lifting horizontal arm, and the hook is connected to the hoisting machine through a rope.

[0008] The vertical arm is a three-section structure, including an upper vertical arm, a lower vertical arm and a middle vertical arm obliquely arranged between the upper vertical arm and the lower vertical arm. The hydraulic lifter is connected to the middle vertical arm, and the lower vertical arm fixes multiple sections of the wind turbine tower through multiple clamp assemblies.

[0009] The vertical arm is connected to the hoisting horizontal arm through a horizontal arm rotator, and the hoisting horizontal arm is rotated around the vertical arm through a first driving mechanism; the right side of the horizontal arm rotator is connected to the hoisting horizontal arm through a horizontal arm telescoping device, and is powered by a second driving mechanism; a horizontal arm folding device is also provided on the side wall of the horizontal arm rotator.

[0010] Optionally, the horizontal arm rotator is sleeved on the top of the vertical arm, and the horizontal arm rotator is rotatably connected to the vertical arm and fixedly connected to the hoisting horizontal arm;

[0011] A thrust bearing and a radial bearing are provided between the inner side of the flat arm rotator and the vertical arm. A fixed beam is provided on the vertical arm for fixing the reducer. The input end of the reducer is connected to the output shaft of the first driving mechanism, and the output end of the reducer is connected to the transmission shaft of the first gear. The first gear and the second gear are connected through gear meshing, and the second gear is connected to the outer side of the flat arm rotator.

[0012] Optionally, the hoisting horizontal arm includes three telescopic arms, and every two telescopic arms are connected by a needle bearing group.

[0013] Optionally, the vertical arm is formed by splicing multiple vertical columns, and the vertical columns adopt a double-layer structure, and their overall cross-section is hexagonal.

[0014] Optionally, the total number of the plurality of columns is 18.

[0015] Optionally, a plurality of groups of counterweight legs are provided at intervals along the length of the bottom of the transport vehicle.

[0016] Optionally, an infrared level is provided between one group of counterweight legs, and the infrared level is located on a connecting rod between two counterweight legs of the group of counterweight legs, for detecting whether the support provided by the counterweight legs to the vehicle is level.

[0017] Optionally, the clamp assembly includes: a clamp body, the clamp body being connected to the vertical arm via a first connector; the clamp body being composed of two clamp bodies, a hinge connector being provided between the two clamp bodies;

[0018] The clamp split body is provided with a first hydraulic expander and a second hydraulic expander and a third hydraulic expander arranged at intervals. The ends of the second hydraulic expander and the third hydraulic expander are both installed with fastening and stabilizing blocks, and the end of the second hydraulic expander is also provided with a roller.

[0019] Optionally, a remote controller is further configured, the remote controller being connected to the control module and being used to control the operation of the self-climbing hoisting equipment;

[0020] The control module is used to receive instructions from the remote controller and control the operation of the hydraulic lifter, the first drive mechanism and the second drive mechanism.

[0021] In a second aspect, a method for installing a wind turbine generator set using a self-climbing hoisting device is provided, wherein the self-climbing hoisting device is the self-climbing hoisting device for installing a wind turbine tower as described above; the method comprises:

[0022] Step 1: In the initial state, the self-climbing installation crane is installed in a horizontal state on a transport vehicle; the transport vehicle carries the self-climbing installation crane to the construction site;

[0023] Step 2: Under the action of the hydraulic lifter, the self-climbing installation crane is erected from the transport vehicle in a vertical state, and the first section of the wind turbine tower is lifted with a hook to complete the installation of the first section of the wind turbine tower;

[0024] Step 3: After the first section of the wind turbine tower is installed, the self-climbing installation crane is fixed to the first section of the wind turbine tower through the clamp assembly; then, the self-climbing installation crane is disassembled from the transport vehicle, and the end of the hydraulic lifter is detachably installed on the outer wall of the bottom column of the lower vertical arm; then, the transport vehicle withdraws from the construction site;

[0025] Step 4: Under the action of the hydraulic lifter, the self-climbing installation crane is raised from the first section of the wind turbine tower to the appropriate height for the first time; the second section of the wind turbine tower is lifted with a hook and installed on the top of the first section of the wind turbine tower;

[0026] Step 5: After the second section of the wind turbine tower is installed, the clamp assembly is raised and fixed on the second section of the wind turbine tower;

[0027] Step 6: Under the action of the hydraulic lifter, the self-climbing installation crane rises again to a new height, and steps 4 and 5 are repeated to install subsequent wind turbine towers in sequence until the installation of the entire wind turbine tower is completed. Finally, the nacelle, hub and blades are installed.

[0028] Compared with the prior art, this application has at least the following beneficial effects:

[0029] 1. Based on further analysis and research on existing technical problems, this application provides a self-climbing lifting equipment and a method for installing a wind turbine generator set. The self-climbing telescopic installation crane is connected to the wind turbine tower through a clamp assembly, and the self-climbing telescopic installation crane can move upward on the wind turbine tower, thereby realizing efficient installation of multi-section wind turbine towers and nacelles, hubs and wind blades. It has the advantages of high operating efficiency, time saving and labor saving, and significantly improves the efficiency of wind turbine generator set installation.

[0030] 2. The hoisting flat arm of the present application includes three-section telescopic arms. By installing a needle bearing group between the three telescopic arms, the friction during the telescopic process can be significantly reduced, while the load-bearing capacity can be improved; not only the telescopic efficiency of the hoisting flat arm is improved, but also the stability and reliability of the system are enhanced.

[0031] 3. The clamp assembly of this application uses a hydraulic system to adjust the radial dimensions of the clamp body, achieving a tight fit and secure fixation to the wind turbine tower. The synergistic action of the hydraulic expander, roller, and tightening stabilizer effectively adjusts the radial dimensions of the clamp body, providing a stable tightening force, ensuring a tight fit and secure fixation to the wind turbine tower, and ensuring efficient and safe installation of the wind turbine tower.

[0032] 4. The vertical arm of this application adopts a spliced ​​structure, which can be flexibly installed according to construction requirements, thus adapting to different construction scenes and height requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] To more intuitively illustrate the prior art and the present application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be considered as limiting conditions for implementing the present application; for example, based on the technical concepts disclosed in this application and the exemplary drawings, those skilled in the art are capable of easily making routine adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, dimensional ratios, etc. of certain units (components).

[0034] Figure 1 A schematic diagram of the structure of a self-climbing hoisting device provided in one embodiment of the present application Figure 1 ;

[0035] Figure 2 A schematic diagram of the structure of a self-climbing hoisting device provided in one embodiment of the present application Figure 2 ;

[0036] Figure 3 A schematic diagram of the structure of a self-climbing hoisting device provided in one embodiment of the present application Figure 3 ;

[0037] Figure 4 A schematic diagram of the structure of a self-climbing hoisting device provided in one embodiment of the present application Figure 4 ;

[0038] Figure 5 A schematic diagram of the structure of a self-climbing hoisting device provided in one embodiment of the present application Figure 5 ;

[0039] Figure 6 A schematic diagram of the structure of a self-climbing hoisting device provided in one embodiment of the present application Figure 6 ;

[0040] Figure 7 for Figure 2 Installation diagram of the middle counterweight legs;

[0041] Figure 8 for Figure 2 Schematic diagram of the structure of the middle clamp assembly;

[0042] Figure 9 for Figure 2 Schematic cross-section of the neutral arm.

[0043] Description of reference numerals:

[0044] 1. Transport vehicle; 101. Counterweight legs; 2. Wind turbine tower; 3. Boom; 31. Upper boom; 32. Middle boom; 33. Lower boom; 34. Column; 341. First frame; 342. Second frame; 343. Pole; 4. Lifting boom; 41. Hook; 5. Hydraulic lifter; 6. Boom rotator; 7. Boom telescope; 8. Boom folder; 9. Thrust bearing; 10. Centripetal bearing; 11. Speed ​​reducer; 12. Fixed beam; 13. First gear; 14. Second gear; 15. Needle roller bearing assembly; 16. Clamp assembly; 161. Clamp body; 162. First connecting piece; 163. First hydraulic retractor; 164. Second hydraulic retractor; 165. Third hydraulic retractor; 166. Fastening stabilizing block; 167. Roller; 17. Infrared level; 18. Hoist for hoisting objects; 19. Rope; 20. Rope controller; 21. Hinge connector. DETAILED DESCRIPTION

[0045] The present application will be further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0046] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0047] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are usually used to indicate the general relative position relationship for the convenience of intuitive understanding by referring to the drawings, and are not absolute limitations on the position relationship in the actual product.

[0048] One embodiment of the present application is a self-climbing hoisting device, such as Figures 1-9 As shown, it includes a self-climbing and telescopic installation crane installed on a transport vehicle 1, which is used to install a wind turbine generator set. The wind turbine generator set includes a wind turbine tower 2, a nacelle, a hub and blades;

[0049] The self-climbing telescopic installation crane for the hoisting horizontal arm 4 includes a vertical arm 3 and a hoisting horizontal arm 4. The vertical arm 3 is detachably mounted on the body of the transport vehicle 1 through a hydraulic lifter 5, and one end of the vertical arm 3 is detachably connected to the rear end of the transport vehicle 1 for the hoisting horizontal arm 4. The other end of the vertical arm 3 is rotatably connected to the hoisting horizontal arm 4. A hook 41 is provided at the end of the hoisting horizontal arm 4. A hoisting machine 18 is provided on the upper part of the hoisting horizontal arm 4. The hoisting machine 18 is connected to the hook 41 through a rope 19. A rope controller 20 is provided on the rope 19 for controlling the retraction and extension speed of the rope 19.

[0050] The vertical arm 3 is a three-section structure, including an upper vertical arm 31, a lower vertical arm 33, and a middle vertical arm 32 obliquely arranged between the upper vertical arm 31 and the lower vertical arm 33. The hydraulic lifter 5 is connected to the middle vertical arm 32. The lower vertical arm 33 fixes the multi-section wind turbine tower 2 through multiple clamp assemblies 16, and the bottom column of the lower vertical arm 33 is detachably connected to the upper column.

[0051] The vertical arm 3 is connected to the hoisting horizontal arm 4 through the horizontal arm rotator 6, and the hoisting horizontal arm 4 is rotated 360 degrees around the vertical arm 3 through the first drive mechanism; the right side of the horizontal arm rotator 6 is connected to the hoisting horizontal arm 4 through the horizontal arm telescoping device 7 and is powered by the second drive mechanism; the side wall of the horizontal arm rotator 6 is also provided with a horizontal arm folding device 8; the first drive mechanism and the second drive mechanism can be hydraulic cylinders or electric push rods;

[0052] When the vertical arm 3 changes from a horizontal state to a vertical state, during the process of the posture change of the vertical arm 3, the second driving mechanism applies a driving force to the hoisting horizontal arm 4 through the horizontal arm telescopic device 7 to adjust the angle of the hoisting horizontal arm 4, and the action of the horizontal arm telescopic device 7 is synchronized with the posture change of the vertical arm 3 to ensure that the hoisting horizontal arm 4 always remains in a horizontal state.

[0053] Preferably, the horizontal arm rotator 6 is sleeved on the top of the vertical arm 3, and the horizontal arm rotator 6 is rotatably connected to the vertical arm 3 and fixedly connected to the hoisting horizontal arm 4;

[0054] A thrust bearing 9 and a radial bearing 10 are provided between the inner side of the flat arm rotator 6 and the vertical arm 3. A fixed beam 12 is provided on the vertical arm 3 for fixing the reducer 11. The input end of the reducer 11 is connected to the output shaft of the first driving mechanism, and the output end of the reducer 11 is connected to the transmission shaft of the first gear 13 (small gear). The first gear 13 is connected to the second gear 14 through gear meshing, and the second gear 14 (large gear) is connected to the outer side of the flat arm rotator 6.

[0055] Specifically, a radial bearing 10 is provided between the top of the vertical arm 3 and the flat arm rotator 6, a radial bearing 10 and a thrust bearing 9 are provided between the inner bottom of the flat arm rotator 6 and the vertical arm 3, a reducer 11, a small gear and a large gear are also provided at the outer bottom of the flat arm rotator 6, and a fixed beam 12 for fixing the reducer 11 is provided on the vertical arm 3; the function of the radial bearing 10 is to reduce the radial friction between the vertical arm 3 and the flat arm rotator 6 to ensure smooth rotation; the function of the thrust bearing 9 is to prevent axial displacement between the vertical arm 3 and the flat arm rotator 6 to ensure axial stability.

[0056] Preferably, the hoisting horizontal arm 4 includes three telescopic arms, and every two telescopic arms are connected by a needle bearing group 15.

[0057] Specifically, a needle roller bearing group 15 is installed between the first telescopic arm and the second telescopic arm, and between the second telescopic arm and the third telescopic arm. By installing the needle roller bearing group 15 between the three telescopic arms, and the needle roller bearing has a large inner diameter, a small outer diameter and a large load-bearing capacity, the friction during the telescopic process can be significantly reduced, while the load-bearing capacity can be improved. This not only improves the telescopic efficiency of the lifting flat arm 4, but also enhances the stability and reliability of the system.

[0058] Preferably, if Figure 9 As shown, the vertical arm 3 is composed of multiple vertical columns 34. The vertical columns 34 adopt a double-layer structure, and their overall cross-section is hexagonal.

[0059] Each column 34 includes a first frame 341 located on the outer layer and a second frame 342 located on the inner layer. The first frame 341 and the second frame 342 are concentrically arranged and both are hexagonal prism-shaped. The sides of the upper and lower ends of the second frame 342 extend in the clockwise / counterclockwise direction and are connected to the first frame 341, and a vertical rod 343 is provided at the connection point between the first frame 341 and the second frame 342. The two ends of the vertical rod 343 are respectively connected and fixed to the upper and lower ends of the first frame 341; adjacent columns 34 are detachably connected by bolt assemblies and positioning pins.

[0060] The first frame 341 and the second frame 342 can be welded together by a plurality of support rods, or can be manufactured in an integral manner. The vertical rod 343 can be welded to the first frame 341 and the second frame 342, or can be integrally formed with the first frame 341 and the second frame 342.

[0061] The number of the plurality of columns 34 is 18 in total, and the specific number can be set according to actual conditions.

[0062] Preferably, multiple groups of counterweight legs 101 are arranged at intervals along the length of the bottom of the transport vehicle 1. Each group of counterweight legs 101 includes two or four counterweight legs 101; among them, the group of counterweight legs 101 at the rear of the vehicle includes four counterweight legs 101, and two of them are symmetrically arranged on the left and right sides of the bottom of the rear of the vehicle; each group of counterweight legs 101 at other positions includes two counterweight legs 101, and the two counterweight legs 101 are symmetrically arranged on the left and right sides of the bottom of the vehicle body; the counterweight legs 101 are installed at the bottom of the transport vehicle 1 in a detachable connection manner and are removed after the lifting is completed.

[0063] More preferably, Figure 7 As shown, an infrared level 17 is provided between one group of counterweight legs 101. The infrared level 17 is located on the connecting rod between the two counterweight legs 101 of the group of counterweight legs 101 and is used to detect whether the support of the vehicle by the counterweight legs 101 is level.

[0064] Preferably, if Figure 8 As shown, the clamp assembly 16 is used to secure the wind turbine tower 2 to the vertical arm 3 and includes a clamp body 161 connected to the vertical arm 3 via a first connector 162. The clamp body 161 is composed of two clamp bodies, with a hinged connector 21 disposed between the two clamp bodies, forming a complete ring structure. Each clamp body is equipped with a first hydraulic expansion joint 163 and spaced apart second and third hydraulic expansion joints 164, 165. The ends of the second and third hydraulic expansion joints 164, 165 are each mounted with a fastening and stabilizing block 166, corresponding to a position near the inner ring of the clamp body, and the end of the second hydraulic expansion joint 164 is also mounted with a roller 167.

[0065] The first hydraulic expander 163 can be arranged in the middle of the clamp split, and a second hydraulic expander 164 and a third hydraulic expander 165 are arranged on both sides of the clamp split corresponding to the first hydraulic expander 163, and are distributed at intervals.

[0066] The clamp body 161 is the main structural part of the clamp assembly, which is used to wrap and fix the outer wall of the wind turbine tower; the function of the first hydraulic expander 163 is to adjust the radial size of the clamp body through the hydraulic system so that it fits tightly to the wind turbine tower; the second hydraulic expander 164, the third hydraulic expander 165 and the fastening stabilizing block 166 provide stable fastening force through the hydraulic system to ensure that the clamp assembly is firmly fixed on the wind turbine tower; the function of the roller 167 is to reduce the friction of the clamp assembly during the lifting process to ensure the smooth movement of the clamp assembly; the hinge-type connector 21 is used to connect the clamp parts together, while ensuring that the clamp body 161 maintains a circular structure.

[0067] Preferably, a remote controller is also provided, which is connected to the control module and is used to control the operation of the self-climbing lifting equipment; the control module is used to receive instructions from the remote controller and control the operation of the hydraulic lifter 5, the first drive mechanism and the second drive mechanism.

[0068] The present application also provides a method for installing a wind turbine generator set using a self-climbing hoisting device, which uses the above-mentioned self-climbing hoisting device for installing a wind turbine tower; the method comprises:

[0069] Step 1: Initial state: the self-climbing installation crane is installed on the transport vehicle 1 in a horizontal state. Figure 1 As shown; transport vehicle 1 loads the self-climbing installation crane into the construction site;

[0070] Step 2: Figure 2 As shown, under the action of the hydraulic lifter 5, the self-climbing installation crane stands upright from the transport vehicle 1 in a vertical state, uses the hook 41 to lift the first section of the wind turbine tower 2, and completes the installation of the first section of the wind turbine tower 2;

[0071] Step 3: After the first section of the wind turbine tower 2 is installed, fix the self-climbing installation crane on the first section of the wind turbine tower 2 through the clamp assembly 16, disassemble the self-climbing installation crane from the transport vehicle 1, and detachably install the end of the hydraulic lifter 5 on the outer wall of the bottom column 34 of the lower vertical arm 33, as shown in FIG. Figure 3 As shown; Subsequently, the transport vehicle 1 evacuates the construction site;

[0072] Step 4: Under the action of the hydraulic lifter 5, the self-climbing installation crane is lifted from the first section of the wind turbine tower 2 for the first time to a suitable height, and the bottom column 34 of the lower vertical arm 33 is completely separated from the upper column 34. Figure 4 As shown; use the hook 41 to lift the second section of the wind turbine tower 2 and install it on the top of the first section of the wind turbine tower 2;

[0073] Step 5: After the second section of the wind turbine tower 2 is installed, the hoop assembly 16 is raised and fixed on the second section of the wind turbine tower 2. The bottom column 34 of the lower vertical arm 33 is also raised synchronously and combined with the upper column 34. Figure 5 As shown;

[0074] Step 6: Under the action of the hydraulic lifter 5, the self-climbing installation crane rises again to a new height, such as Figure 6 As shown, repeat steps 4 and 5 to install subsequent wind turbine towers 2 in sequence until the installation of the entire wind turbine tower is completed, and finally install the nacelle, hub and blades.

[0075] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A self-climbing hoisting device, characterized in that: It includes a self-climbing and telescopic installation crane installed on a transport vehicle, which is used to install a wind turbine generator set, wherein the wind turbine generator set includes a wind turbine tower, a nacelle, a hub and blades; The self-climbing telescopic installation crane includes a vertical arm and a lifting horizontal arm. The vertical arm is detachably mounted on the body of the transport vehicle through a hydraulic lifter, and one end of the vertical arm is detachably connected to the rear of the transport vehicle. The other end of the vertical arm is rotatably connected to the lifting horizontal arm. A hook is provided at the end of the lifting horizontal arm, and the hook is connected to the hoisting machine through a rope. The vertical arm is a three-section structure, including an upper vertical arm, a lower vertical arm and a middle vertical arm obliquely arranged between the upper vertical arm and the lower vertical arm. The hydraulic lifter is connected to the middle vertical arm, and the lower vertical arm fixes multiple sections of the wind turbine tower through multiple clamp assemblies. The vertical arm is connected to the horizontal arm via a horizontal arm rotator, and the horizontal arm is caused to rotate around the vertical arm via a first driving mechanism; The right side of the flat arm rotator is connected to the hoisting flat arm through a flat arm telescoping device and is powered by a second driving mechanism; a flat arm folding device is also provided on the side wall of the flat arm rotator.

2. The self-climbing hoisting equipment according to claim 1, characterized in that: The horizontal arm rotator is sleeved on the top of the vertical arm, and the horizontal arm rotator is rotatably connected to the vertical arm and fixedly connected to the hoisting horizontal arm; A thrust bearing and a radial bearing are provided between the inner side of the flat arm rotator and the vertical arm. A fixed beam is provided on the vertical arm for fixing the reducer. The input end of the reducer is connected to the output shaft of the first driving mechanism, and the output end of the reducer is connected to the transmission shaft of the first gear. The first gear and the second gear are connected through gear meshing, and the second gear is connected to the outer side of the flat arm rotator.

3. The self-climbing hoisting equipment according to claim 1 or 2, characterized in that: The hoisting horizontal arm comprises three sections of telescopic arms, and every two sections of the telescopic arms are connected by a needle bearing group.

4. The self-climbing hoisting equipment according to claim 1, characterized in that: The vertical arm is formed by splicing a plurality of vertical columns. The vertical columns adopt a double-layer structure, and the overall cross-section thereof is hexagonal.

5. The self-climbing hoisting equipment according to claim 4, characterized in that: There are 18 columns in total.

6. The self-climbing hoisting equipment according to claim 1, characterized in that: A plurality of groups of counterweight legs are arranged at intervals along the length of the bottom of the transport vehicle on both sides.

7. The self-climbing hoisting equipment according to claim 6, characterized in that: An infrared level is provided between one set of counterweight legs. The infrared level is located on the connecting rod between the two counterweight legs of the set of counterweight legs and is used to detect whether the support provided by the counterweight legs to the vehicle is level.

8. The self-climbing hoisting equipment according to claim 1, characterized in that: The clamp assembly includes: a clamp body, the clamp body is connected to the vertical arm through a first connecting piece; the clamp body is composed of two clamp parts, and a hinge connector is provided between the two clamp parts; The clamp split body is provided with a first hydraulic expander and a second hydraulic expander and a third hydraulic expander arranged at intervals. The ends of the second hydraulic expander and the third hydraulic expander are both installed with fastening and stabilizing blocks, and the end of the second hydraulic expander is also provided with a roller.

9. The self-climbing hoisting equipment according to claim 1, characterized in that: A remote controller is also provided, which is connected to the control module and is used to control the operation of the self-climbing hoisting equipment; The control module is used to receive instructions from the remote controller and control the operation of the hydraulic lifter, the first drive mechanism and the second drive mechanism.

10. A method for installing a wind turbine generator set using a self-climbing hoisting device, characterized in that: The self-climbing hoisting equipment is the self-climbing hoisting equipment according to any one of claims 1 to 9; the method comprises: Step 1: In the initial state, the self-climbing installation crane is installed in a horizontal state on a transport vehicle; the transport vehicle carries the self-climbing installation crane to the construction site; Step 2: Under the action of the hydraulic lifter, the self-climbing installation crane is erected from the transport vehicle in a vertical state, and the first section of the wind turbine tower is lifted with a hook to complete the installation of the first section of the wind turbine tower; Step 3: After the first section of the wind turbine tower is installed, the self-climbing installation crane is fixed to the first section of the wind turbine tower through the clamp assembly; then, the self-climbing installation crane is disassembled from the transport vehicle, and the end of the hydraulic lifter is detachably installed on the outer wall of the bottom column of the lower vertical arm; then, the transport vehicle withdraws from the construction site; Step 4: Under the action of the hydraulic lifter, the self-climbing installation crane is raised from the first section of the wind turbine tower to the appropriate height for the first time; the second section of the wind turbine tower is lifted with a hook and installed on the top of the first section of the wind turbine tower; Step 5: After the second section of the wind turbine tower is installed, the clamp assembly is raised and fixed on the second section of the wind turbine tower; Step 6: Under the action of the hydraulic lifter, the self-climbing installation crane rises again to a new height, and steps 4 and 5 are repeated to install subsequent wind turbine towers in sequence until the installation of the entire wind turbine tower is completed. Finally, the nacelle, hub and blades are installed.

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