An offshore wind turbine generator system

Abstract

The application belongs to the field of wind power generation, and particularly relates to an offshore wind turbine generator unit. A generator is installed on the upper end of a tower drum, and blades are connected to the generator; a climbing assembly moves in the up-down direction along the tower drum, a positioning assembly is connected with the climbing assembly and is used for detachable connection with the tower drum, and a cleaning assembly is connected with the positioning assembly and is used for cleaning the outer lateral wall of the tower drum. The climbing assembly is used to climb to a specified height of the tower drum, the positioning assembly is used to fix the cleaning assembly on the tower drum to ensure the stability of the cleaning assembly, and the cleaning assembly can be used to clean the outer lateral wall of the tower drum, without manual climbing of the tower drum, manpower is saved, and safety hazards are reduced. The climbing assembly, the positioning assembly and the cleaning assembly are not directly connected with the tower drum, can be detached according to needs, the contact area between a typhoon and the tower drum is reduced, and the tower drum is prevented from being blown down by the typhoon.

Description

Technical Field

[0001] This invention belongs to the field of wind power generation, and specifically relates to an offshore wind turbine generator set. Background Technology

[0002] Wind power generation refers to converting the kinetic energy of wind into electrical energy. The equipment required for wind power generation is called a wind turbine generator set, which can be broadly divided into three parts: blades, generator, and tower. Offshore wind power generation involves deploying wind turbine generator sets on the ocean to convert offshore wind energy into electrical energy. During operation, the outer walls of wind turbine towers deployed offshore are constantly exposed, leading to the accumulation of seawater, oil, and other contaminants, which can cause corrosion and damage to the tower's outer walls. Regular cleaning of the tower's outer walls is necessary.

[0003] However, existing technologies typically require manual cleaning of the tower, which is difficult and poses safety hazards. Therefore, it is necessary to design an offshore wind turbine generator to solve these problems. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an offshore wind turbine generator set to solve the issues raised in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An offshore wind turbine generator set includes blades, a generator, a tower, a climbing assembly, a positioning assembly, and a cleaning assembly. The generator is installed on the upper end of the tower, and the blades are connected to the generator.

[0007] The climbing component moves up and down along the tower. The positioning component is connected to the climbing component and is detachably connected to the tower. The cleaning component is connected to the positioning component and is used to clean the outer wall of the tower.

[0008] Furthermore, the tower is provided with positioning grooves, and multiple positioning grooves are provided, which are distributed sequentially along the axial direction of the tower.

[0009] The positioning component includes a positioning mechanism and a plugging mechanism. There are two positioning mechanisms, one of which is located above the other. The cleaning component is connected to the positioning mechanism. There are two plugging mechanisms, one of which is connected to each of the two positioning mechanisms. The plugging mechanism is used to insert into the positioning slot.

[0010] The climbing assembly includes a first cylinder, which is oriented vertically. One end of the first cylinder is connected to the positioning mechanism below, and the other end is connected to the positioning mechanism above.

[0011] Furthermore, each positioning component is provided in two sets, and the positioning component is set in a semi-circular outline, with the two sets of positioning components symmetrically distributed on both sides of the tower.

[0012] Furthermore, the positioning mechanism includes a positioning ring, a support member, and a first gear. The positioning assembly also includes a driving mechanism. The positioning ring is connected to the support member. The first gear is located between the positioning ring and the support member. The driving mechanism is connected to the first gear. The cleaning assembly is connected to the first gear. The first gear is configured as a ring and is coaxially distributed with the tower. The first cylinder is connected to the positioning ring.

[0013] Furthermore, multiple drive mechanisms are provided, and the multiple drive mechanisms are distributed around the positioning ring.

[0014] Furthermore, the drive mechanism includes a mounting base, a motor, and a second gear. The mounting base is connected to the positioning ring, the motor is connected to the mounting base, and the motor is connected to the second gear in a transmission connection. The inner sidewall of the first gear has serrations, and the second gear is located inside the first gear and meshes with the first gear.

[0015] Furthermore, the cleaning assembly includes a second cylinder and a cleaning brush. The second cylinder is connected to the first gear, which is coaxially distributed with the tower. The second cylinder is driven by the cleaning brush and is used to drive the cleaning brush to move along the radial direction of the first gear. The cleaning brush acts on the outer wall of the tower.

[0016] Furthermore, multiple cleaning components are provided, and each of the multiple cleaning components is connected to the first gear.

[0017] Furthermore, the insertion mechanism includes a third cylinder and an insertion block. The third cylinder is connected to the positioning ring and is drivenly connected to the insertion block to drive the insertion block to move along the radial direction of the positioning ring. The insertion block is used to insert into the positioning groove.

[0018] Furthermore, the generator includes a housing, a housing cover, and a planetary carrier. The housing is connected to the upper end of the tower, the planetary carrier is installed inside the housing, and the housing cover is installed on the housing.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. The climbing component can be used to climb to the specified height of the tower, and the positioning component can be used to fix the cleaning component on the tower to ensure the stability of the cleaning component. The cleaning component can be used to clean the outer wall of the tower without the need for manual climbing of the tower, saving manpower and reducing safety hazards.

[0021] 2. The climbing, positioning, and cleaning components are not directly connected to the tower and can be disassembled as needed to reduce the contact area between the typhoon and the tower, thus preventing the typhoon from knocking the tower down.

[0022] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the mechanisms pointed out in the description and drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of an offshore wind turbine generator set according to an embodiment of the present invention is shown;

[0025] Figure 2 A schematic diagram of the climbing component, positioning component, and cleaning component according to an embodiment of the present invention is shown;

[0026] Figure 3 A first usage state diagram of the climbing component, positioning component, and cleaning component according to an embodiment of the present invention is shown;

[0027] Figure 4 A second usage state diagram of the climbing component, positioning component, and cleaning component according to an embodiment of the present invention is shown;

[0028] Figure 5 A partial structural schematic diagram of the climbing component, positioning component, and cleaning component according to an embodiment of the present invention is shown;

[0029] Figure 6 A schematic diagram of the cleaning component and drive mechanism according to an embodiment of the present invention is shown;

[0030] Figure 7 A schematic diagram of the generator according to an embodiment of the present invention is shown.

[0031] Reference numerals: 1. Blade; 2. Generator; 3. Tower; 4. Climbing assembly; 5. Positioning assembly; 6. Cleaning assembly; 7. Positioning slot; 8. Positioning mechanism; 9. Plug-in mechanism; 10. Positioning ring; 11. Support; 12. First gear; 13. Drive mechanism; 14. Mounting base; 15. Motor; 16. Second gear; 17. Second cylinder; 18. Cleaning brush; 19. Third cylinder; 20. Plug-in block; 21. Housing; 22. Housing cover; 23. Planetary carrier. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] The positive X-axis points forward, and the negative X-axis points backward; the positive Y-axis points left, and the negative Y-axis points right; the positive Z-axis points upward, and the negative Z-axis points downward.

[0034] like Figures 1 to 4 As shown, an offshore wind turbine generator set according to an embodiment of the present invention includes blades 1, generator 2, tower 3, climbing assembly 4, positioning assembly 5, and cleaning assembly 6. The generator 2 is installed on the upper end of the tower 3, and the blades 1 are connected to the generator 2.

[0035] The climbing component 4 moves up and down along the tower 3. The positioning component 5 is connected to the climbing component 4 and is detachably connected to the tower 3. The cleaning component 6 is connected to the positioning component 5 and is used to clean the outer wall of the tower 3.

[0036] Because the tower 3 is vertically oriented, it is difficult to manually climb the tower 3 when its outer wall needs cleaning, making cleaning difficult. In this embodiment, the climbing component 4 is used to climb along the axial direction of the tower 3. When the required cleaning height is reached, the positioning component 5 is connected to the tower 3 to maintain the stability of the positioning component 5 and the climbing component 4. Then, the cleaning component 6 is used to clean the tower 3 at that height, which is beneficial for removing oil stains, marine corrosive substances, etc. from the outer wall of the tower 3. Thus, the climbing component 4 can be used to climb to the designated height of the tower 3, the positioning component 5 can be used to fix the cleaning component 6 to the tower 3 to ensure the stability of the cleaning component 6, and the cleaning component 6 can be used to clean the outer wall of the tower 3 without the need for manual climbing of the tower 3, saving manpower and reducing safety hazards. Secondly, the climbing component 4, positioning component 5, and cleaning component 6 are not directly connected to the tower 3 and can be disassembled as needed. For example, during typhoon weather, the climbing component 4 and positioning component 5 can be used to lower the height of the cleaning component 6 to reduce the overall center height of the offshore wind turbine. Alternatively, when the cleaning component 6 is adjusted to the lower end of the tower 3 using the climbing component 4, the positioning component 5 can be separated from the tower 3 to remove the climbing component 4, positioning component 5, and cleaning component 6 from the tower 3, thereby reducing the contact area between the typhoon and the tower 3 and preventing the typhoon from knocking down the tower 3.

[0037] Optionally, such as Figures 2 to 5 As shown, the tower 3 is provided with a positioning groove 7, and there are multiple positioning grooves 7, which are distributed sequentially along the axial direction of the tower 3.

[0038] The positioning component 5 includes a positioning mechanism 8 and a plugging mechanism 9. There are two positioning mechanisms 8, with one positioning mechanism 8 located above the other positioning mechanism 8. The cleaning component 6 is connected to the positioning mechanism 8. There are two plugging mechanisms 9, with one plugging mechanism 9 connected to each of the two positioning mechanisms 8. The plugging mechanism 9 is used to be inserted into the positioning groove 7.

[0039] The climbing component 4 includes a first cylinder, which is oriented vertically. One end of the first cylinder is connected to the lower positioning mechanism 8, and the other end is connected to the upper positioning mechanism 8.

[0040] In this embodiment, the tower 3 is divided into multiple sections of equal height. Taking the sections adjacent at both ends as an example, they are the first section and the second section, with the first section located below the second section. Both the first and second sections have two positioning slots 7, one at the bottom and one in the middle, and one at the top, respectively. In the first section, when the lower insertion mechanism 9 is inserted into the lower positioning slot 7, the lower positioning mechanism 8 connects to the lower insertion mechanism 9, and the lower cleaning component 6 connects to the lower positioning mechanism 8, thus ensuring the stability of the lower positioning mechanism 8 and the lower cleaning component 6 relative to the first section. Next, when the lower positioning mechanism 8 is stable, the first cylinder pushes the upper positioning mechanism 8 upwards until the upper insertion mechanism 9 can be inserted into the upper positioning slot 7. The upper positioning mechanism 8 connects to the upper insertion mechanism 9, thus ensuring the stability of the upper positioning mechanism 8 and the upper cleaning component 6 relative to the first section. Therefore, by using the lower insertion mechanism 9 to insert into the lower positioning groove 7 and the upper insertion mechanism 9 to insert into the upper positioning groove 7, the stability of the upper and lower positioning mechanisms 8, as well as the cleaning components 6 connected to them, relative to the first cylinder can be ensured. The lower cleaning component 6 can be used to clean the lower part of the first cylinder, and the upper cleaning component 6 can be used to clean the upper part of the first cylinder. Furthermore, when it is necessary to ascend to the second cylinder, the lower insertion mechanism 9 is pulled out from the lower positioning groove 7 of the first cylinder, and the first cylinder drives the lower positioning mechanism 8 upward until the lower insertion mechanism 9 can be inserted into the middle positioning groove 7 of the first cylinder. Then, the lower cleaning component 6 can be used to clean the middle part of the first cylinder to avoid incomplete cleaning. The upper insertion mechanism 9 is then pulled out from the upper positioning groove 7 of the first cylinder, and the first cylinder drives the upper positioning mechanism 8 upward until the upper insertion mechanism 9 can be inserted into the lower positioning groove 7 of the second cylinder. Next, the lower insertion mechanism 9 is pulled out from the positioning groove 7 in the middle of the first cylinder. The first cylinder drives the lower positioning mechanism 8 upward until the lower insertion mechanism 9 can be inserted into the upper positioning groove 7 of the first cylinder. The upper insertion mechanism 9 is then pulled out from the lower positioning groove 7 of the second cylinder. The first cylinder drives the upper positioning mechanism 8 upward until the upper insertion mechanism 9 can be inserted into the middle positioning groove 7 of the second cylinder. Finally, the lower insertion mechanism 9 is pulled out from the upper positioning groove 7 of the first cylinder. The first cylinder drives the lower positioning mechanism 8 upward until the lower insertion mechanism 9 can be inserted into the lower positioning groove 7 of the second cylinder. The first cylinder then drives the upper positioning mechanism 8 upward until the upper insertion mechanism 9 can be inserted into the upper positioning groove 7 of the second cylinder. Thus, by setting the middle positioning groove 7, the climbing height of the first cylinder can be reduced each time, avoiding the use of a long first cylinder, which helps to reduce the climbing difficulty and facilitates the movement of the cleaning component 6 to different heights of the tower 3.

[0041] Optionally, such as Figure 2 and Figure 4 As shown, each of the positioning components 5 is provided in two sets, and the positioning component 5 is set in a semi-circular outline. The two sets of positioning components 5 are symmetrically distributed on both sides of the tower 3.

[0042] In this embodiment, for cleaning the outer wall of the tower 3, the positioning component 5 is typically set as an annular ring to facilitate cleaning by the cleaning component 6 around the tower 3. However, setting the positioning component 5 as an annular ring makes it difficult to install and remove it from the tower 3. By setting the positioning component 5 as a semi-annular ring, with the inner sides of the two positioning components 5 facing each other, the two positioning components 5 are located on the front and rear sides of the tower 3, respectively, and positioning slots 7 are provided on both the front and rear sides of the tower 3. Both the left and right positioning components 5 include two semi-annular positioning mechanisms 8, and each positioning mechanism 8 is connected to a corresponding insertion mechanism 9. The left and right positioning mechanisms 8 are connected to the tower 3 through the left and right insertion mechanisms 9, respectively. Thus, the two positioning components 5 can be set on the front and rear sides of the tower 3, respectively, for installation and removal from the positioning slots 7 on the front and rear sides of the tower 3, which helps to reduce the difficulty of installing and removing the positioning components 5.

[0043] Optionally, such as Figure 5 and Figure 6 As shown, the positioning mechanism 8 includes a positioning ring 10, a support member 11, and a first gear 12. The positioning assembly 5 also includes a drive mechanism 13. The positioning ring 10 is connected to the support member 11. The first gear 12 is located between the positioning ring 10 and the support member 11. The drive mechanism 13 is connected to the first gear 12 in a transmission manner. The cleaning assembly 6 is connected to the first gear 12. The first gear 12 is configured as a ring and is coaxially distributed with the tower 3. The first cylinder is connected to the positioning ring 10.

[0044] Specifically, the first cylinder can be configured in multiple ways, for example, three cylinders can be configured.

[0045] In this embodiment, the first cylinder drives the positioning ring 10 to move up and down, thereby driving the positioning mechanism 8 to move upward or downward. Next, the drive mechanism 13 drives the first gear 12 to rotate, thereby driving the cleaning component 6 on the first gear 12 to rotate relative to the tower 3, so as to clean the outer wall of the tower 3.

[0046] Secondly, since the positioning component 5 is set as a semi-circular ring, that is, the positioning ring 10, the support member 11, and the first gear 12 are all set as semi-circular rings, and the support member 11 has a support plate extending radially inward on the side away from the positioning ring 10. When the front and rear positioning components 5 are at the same height, the front and rear positioning rings 10 combine to form a circular positioning structure, and the front and rear support members 11 combine to form a circular support structure. That is, the circular positioning structure and the circular support structure can limit the two semi-circular rings of the first gear 12, which can ensure the stability of the first gear 12 during rotation.

[0047] Optionally, multiple drive mechanisms 13 are provided, and the multiple drive mechanisms 13 are distributed around the positioning ring 10.

[0048] In this embodiment, specifically, there are two drive mechanisms 13. Two drive mechanisms 13 are symmetrically distributed on each positioning ring 10. The two drive mechanisms 13 can drive the first gear 12 at the same time, which can provide a large enough force to drive the first gear 12 to rotate, so as to drive the cleaning component 6 connected to the first gear 12 to rotate relative to the tower 3 for cleaning the tower 3.

[0049] Optionally, such as Figure 5 and Figure 6 As shown, the drive mechanism 13 includes a mounting base 14, a motor 15, and a second gear 16. The mounting base 14 is connected to the positioning ring 10, the motor 15 is connected to the mounting base 14, and the motor 15 is connected to the second gear 16 in a transmission connection. The inner sidewall of the first gear 12 has serrations, and the second gear 16 is located inside the first gear 12 and meshes with the first gear 12.

[0050] In this embodiment, the axial direction of the second gear 16 is parallel to the axial direction of the first gear 12. The motor 15 is connected to the second gear 16 to drive its rotation, and the second gear 16 meshes with the first gear 12 to drive its rotation. Furthermore, by providing a mounting base 14, which can be welded or bolted to the positioning ring 10, and the motor 15 can be welded or bolted to the mounting base 14, the connection of the mounting base 14 can be facilitated.

[0051] Optionally, such as Figure 5 and Figure 6 As shown, the cleaning assembly 6 includes a second cylinder 17 and a cleaning brush 18. The second cylinder 17 is connected to the first gear 12, which is coaxially distributed with the tower 3. The second cylinder 17 is connected to the cleaning brush 18 and is used to drive the cleaning brush 18 to move along the radial direction of the first gear 12. The cleaning brush 18 acts on the outer wall of the tower 3.

[0052] In this embodiment, since the dimensions of the tower 3 gradually decrease from bottom to top, the length of the cleaning assembly 6 needs to be adjusted as the height of the cleaning assembly 6 is adjusted. The cleaning brush 18 is driven by the second cylinder 17 to move radially along the first gear 12. Since the first gear 12 is coaxially distributed with the tower 3, the distance between the cleaning brush 18 and the outer wall of the tower 3 can be adjusted using the second cylinder 17, facilitating the cleaning brush 18 to clean the outer wall of the tower 3.

[0053] Optionally, multiple cleaning components 6 are provided, and each of the multiple cleaning components 6 is connected to the first gear 12.

[0054] In this embodiment, specifically, three cleaning components 6 are connected to the first gear 12, with one cleaning component 6 located between the two drive mechanisms 13, and the other two cleaning components 6 symmetrically distributed on the left and right sides of the first gear 12. This means that the rotation of the first gear 12 can simultaneously drive the rotation of all three cleaning components 6, allowing each component to clean a portion of the tower 3. To avoid collisions between the cleaning components 6 and the drive mechanisms 13, the first gear 12 rotates a certain angle before the drive mechanisms 13 rotate in the opposite direction.

[0055] Optionally, such as Figure 5 As shown, the insertion mechanism 9 includes a third cylinder 19 and an insertion block 20. The third cylinder 19 is connected to the positioning ring 10. The third cylinder 19 is connected to the insertion block 20 and is used to drive the insertion block 20 to move in the radial direction of the positioning ring 10. The insertion block 20 is used to insert into the positioning groove 7.

[0056] In this embodiment, the third cylinder 19 is used to drive the plug block 20 to move inward along the radial direction of the positioning ring 10, so as to drive the plug block 20 to be inserted into the positioning groove 7. Alternatively, the third cylinder 19 can be used to drive the plug block 20 to move outward along the radial direction of the positioning ring 10, so as to drive the plug block 20 to disengage from the positioning groove 7.

[0057] Optionally, such as Figure 1 and Figure 7 As shown, the generator 2 includes a housing 21, a housing cover 22, and a planetary carrier 23. The housing 21 is connected to the upper end of the tower 3, the planetary carrier 23 is installed inside the housing 21, and the housing cover 22 is installed on the housing 21.

[0058] In this embodiment, by setting the generator 2 to include a housing 21, a cover 22 and a planetary carrier 23, a corresponding gear structure can be installed on the planetary carrier 23, the gear structure can be set inside the housing 21, and finally the cover 22 can be installed on the housing 21, which facilitates the installation of the generator 2.

[0059] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An offshore wind turbine generator system characterized by, The utility model provides a wind turbine, including blade (1), generator (2), tower drum (3), climb assembly (4), positioning assembly (5) and cleaning assembly (6), the upper end of tower drum (3) is installed generator (2), and the generator (2) is connected with blade (1);Climb assembly (4) moves along tower drum (3) in up and down direction, positioning assembly (5) is connected with climb assembly (4) and is used for with tower drum (3) detachable connection, and cleaning assembly (6) is connected with positioning assembly (5) and is used for cleaning the outside wall of tower drum (3); Tower drum (3) is provided with positioning groove (7), the positioning groove (7) is provided with multiple, and multiple positioning groove (7) distributes in turn along the axial direction of tower drum (3);Positioning assembly (5) includes positioning mechanism (8) and plug-in mechanism (9), the positioning mechanism (8) is provided with two, one positioning mechanism (8) is located above another positioning mechanism (8), and cleaning assembly (6) is connected with positioning mechanism (8), and plug-in mechanism (9) is provided with two, and one plug-in mechanism (9) is connected to two positioning mechanism (8), and plug-in mechanism (9) is used to be inserted into positioning groove (7);Climb assembly (4) includes first air cylinder, and first air cylinder is set towards up and down direction, and one end of first air cylinder is connected with lower positioning mechanism (8), and the other end is connected with upper positioning mechanism (8); Positioning assembly (5) is provided with two groups, and positioning assembly (5) is provided as half circular ring profile, and two groups of positioning assembly (5) are symmetrically distributed on the both sides of tower drum (3); Positioning mechanism (8) includes positioning ring (10), support (11) and first gear (12), positioning assembly (5) also includes drive mechanism (13), positioning ring (10) is connected with support (11), first gear (12) is located between positioning ring (10) and support (11), drive mechanism (13) is transmissionally connected with first gear (12), cleaning assembly (6) is connected with first gear (12), and first gear (12) is provided as annular and is coaxially distributed with tower drum (3);First air cylinder is connected with positioning ring (10); Drive mechanism (13) is provided with multiple, and multiple drive mechanism (13) is distributed around on positioning ring (10); Drive mechanism (13) includes mounting seat (14), motor (15) and second gear (16), mounting seat (14) is connected with positioning ring (10), motor (15) is connected with mounting seat (14), motor (15) is transmissionally connected with second gear (16), and the inside wall of first gear (12) has sawtooth, and second gear (16) is located in the inside of first gear (12) and is engaged with first gear (12); The cleaning assembly (6) comprises a second cylinder (17) and a cleaning brush (18), the second cylinder (17) is connected with the first gear (12), the first gear (12) is coaxially distributed with the tower drum (3), the second cylinder (17) is drivingly connected with the cleaning brush (18) and is used to drive the cleaning brush (18) to move in the radial direction of the first gear (12), and the cleaning brush (18) acts on the outer sidewall of the tower drum (3).

2. The offshore wind turbine generator unit according to claim 1, characterized by The cleaning assembly (6) is provided in plurality, and each of the plurality of cleaning assemblies (6) is connected with the first gear (12).

3. The offshore wind turbine generator unit according to claim 2, characterized by The plug-in mechanism (9) comprises a third cylinder (19) and a plug-in block (20), the third cylinder (19) is connected with the positioning ring (10), the third cylinder (19) is drivingly connected with the plug-in block (20) and is used to drive the plug-in block (20) to move in the radial direction of the positioning ring (10), and the plug-in block (20) is used to be inserted into the positioning groove (7).

4. The offshore wind turbine generator unit according to claim 3, characterized by The generator (2) comprises a box body (21), a box cover (22) and a planet carrier (23), the box body (21) is connected with the upper end of the tower drum (3), the planet carrier (23) is installed in the box body (21), and the box cover (22) is installed on the box body (21).

Images