Wind power mixed tower maintenance operation equipment and use method

Abstract

The application discloses a wind power mixed tower maintenance operation equipment and a use method. The equipment is used for the operation and maintenance of the inner wall and the outer wall of a tower drum. The equipment comprises a main frame, an X-direction or ring-direction driving device arranged on the main frame, a first Z-direction driving device arranged on the X-direction driving device, a first operation platform mounted on the first Z-direction driving device, a Y-direction driving device and an operation frame arranged on the first operation platform, a clamping device driven by the Y-direction driving device to move the operation frame in the Y-direction, a second Z-direction driving device fixed on the operation frame and driving a second operation platform to move up and down, an operation device and an image acquisition device arranged on the second operation platform, and an auxiliary supporting wheel and a track main driving wheel arranged on the top of the operation frame.

Description

Technical Field

[0001] This invention relates to wind turbine multi-tower maintenance equipment, specifically disclosing a wind turbine multi-tower maintenance equipment and its usage method. Background Technology

[0002] In the inspection and maintenance of the inner walls of wind turbine hybrid towers (concrete-steel hybrid towers), existing technologies largely rely on manual suspended platforms or rail-based wall-climbing robots. Manual suspended platform operations are characterized by high safety risks, low efficiency, and significant susceptibility to environmental factors. While traditional rail-mounted or wheeled wall-climbing robots have achieved a degree of automation, they still face the following prominent technical bottlenecks: Insufficient spatial mobility and wall adaptability. The inner wall of a wind turbine tower is not an ideally smooth cylindrical surface, often containing concrete joints, embedded parts, rebar ends, cable supports, and other protruding obstacles. Traditional equipment often uses rigid structures or simple articulated arms with limited adjustment capabilities, making it difficult to smoothly and reliably avoid such complex obstacles during lifting and lowering. This can easily lead to jamming or collisions, affecting not only normal equipment operation but also potentially damaging the concrete inner wall. Particularly noteworthy is that, for ease of maintenance, the interior of the tower typically features multiple internal platforms at intervals. These platforms severely hinder continuous automated inspection processes. Existing equipment often has to interrupt operations at platforms for disassembly, repositioning, or manual intervention to cross them, resulting in discontinuous inspection processes, low operational efficiency, and difficulty in achieving seamless operation throughout the entire process. Summary of the Invention

[0003] To address the limitations of existing technologies, such as the inability of current equipment to achieve stable, full-coverage, automated annular inspection of the inner wall of the tower, especially its inability to effectively adapt to the complex structure of the inner wall; the disruption of inspection continuity caused by the internal platform of the tower, resulting in the inability of the equipment to operate automatically and seamlessly across layers, leading to low efficiency and process interruptions; and the single functionality of the equipment, failing to integrate inspection and repair functions and thus failing to achieve integrated "inspection-maintenance" operations, this invention discloses a wind power hybrid tower maintenance operation equipment and its usage method.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention provides a wind power hybrid tower maintenance operation device for maintenance of the tower inner wall. It includes a main frame, an X-direction drive device mounted on the main frame, a first Z-direction drive device mounted on the X-direction drive device, a first working platform mounted on the first Z-direction drive device, a Y-direction drive device and a working frame mounted on the first working platform, the Y-direction drive device driving a clamping device to clamp the working frame and move it in the Y direction, a second Z-direction drive device fixed on the working frame, the second Z-direction drive device driving a second working platform to move up and down, a working device and an image acquisition device mounted on the second working platform, and auxiliary support wheels and a main drive wheel for the track mounted on the top of the working frame.

[0005] Secondly, the present invention provides a wind power hybrid tower maintenance operation equipment for tower outer wall maintenance. It includes a main frame, on which a ring-shaped drive device is mounted. A first Z-direction drive device is mounted on the ring-shaped drive device. A first working platform is mounted on the first Z-direction drive device. A Y-direction drive device and a working frame are mounted on the first working platform. The Y-direction drive device drives a clamping device to clamp the working frame and move it in the Y direction. A second Z-direction drive device is fixed on the working frame and drives a second working platform to move up and down. A working device and an image acquisition device are mounted on the second working platform. An auxiliary support wheel and a main drive wheel are mounted on the top of the working frame.

[0006] As a further technical solution, the X-direction driving device is a driving device composed of a servo motor and a gear rack.

[0007] As a further technical solution, the aforementioned annular direction driving device is a driving device composed of a servo motor and a gear rack.

[0008] As a further technical solution, the first working platform is an L-shaped plate, and a first Y-direction slide rail is provided on the vertical surface of the L-shaped plate along the Y direction. The clamping device is installed on the first Y-direction slide rail and moves along the first Y-direction slide rail under the drive of the Y-direction driving device. A second Y-direction slide rail is provided on the horizontal surface of the L-shaped plate along the Y direction, and the working frame is installed on the second Y-direction slide rail.

[0009] As a further technical solution, a rotating platform is provided on the second working platform, and the image acquisition device is installed on the rotating platform.

[0010] As a further technical solution, the first Z-direction driving device is a driving device composed of a servo motor and a sprocket chain.

[0011] As a further technical solution, the second Z-direction driving device is a driving device composed of a servo motor and a lead screw.

[0012] As a further technical solution, a locking device is also provided on the side or rear of the first working platform to lock the first working platform.

[0013] Thirdly, the present invention provides a method for performing maintenance on the inner wall of a wind turbine tower using the aforementioned wind power tower maintenance equipment, as detailed below: The wind turbine tower maintenance equipment is placed inside the tower; then, the X-direction drive device moves the first working platform back and forth, moving it from the underside of the first tower track frame to the docking position. Then, the first Z-direction drive device raises the first working platform to a designated height. At this moment, the second working platform is located at the center of the working platform. The clamping device then moves to lock the working frame. When scanning at the height of the first tower track frame, the first working platform locks. After height alignment, the clamping device moves the second working platform. At this time, the main drive wheel of the track rotates. Both ends of the first tower track frame are straight sections. As the main drive wheel enters the interior of the first tower track frame, the auxiliary support wheel also engages with the groove of the first tower track frame. Then, the portion of the second working platform enters the interior of the first tower track frame and rotates. During rotation, the second Z-direction drive device drives the second working platform to rise and fall between the first tower top platform and the second tower top platform, so as to perform close-range scanning or operation on the side wall between the first tower top platform and the second tower top platform. After completing the maintenance work on this level, the section where the second work platform is located will return along the predetermined track. Guided by the end straight track, the second work platform will detach from the first tower track frame and return to the first work platform, completing all maintenance on the first level. Then, the first Z-direction drive device moves the first working platform to the center of the tower, and then descends to the next level. The above operation is repeated to achieve a comprehensive inspection of the inside of the tower.

[0014] The beneficial effects of this invention are as follows: This invention enables fully automated maintenance of the inner or outer walls of wind turbine hybrid towers. Through modular coordinated movement, it can stably and reliably complete the scanning and operation of the entire inner wall of the tower, including multiple platforms. It innovatively solves the problem of internal platforms hindering continuous operation. Through a unique docking and transfer mechanism, the inspection unit can seamlessly cross platforms, achieving uninterrupted continuous maintenance throughout the entire process. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0016] Figure 1 This is a schematic diagram of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention in its working state; Figure 3 This is a schematic diagram of the structure of the bottom drive section of the main frame of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the structure of the bottom drive section of the main frame of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the bottom drive section of the main frame of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 3 ; Figure 6 This is a schematic diagram of the lifting drive section of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the lifting drive section of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 2 ; Figure 8 This is a schematic diagram of the lifting drive section of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 3 ; Figure 9 This is a schematic diagram of the clamping cylinder portion of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 1 ; Figure 10This is a schematic diagram of the clamping cylinder portion of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 2 ; Figure 11 This is a schematic diagram of the second working platform portion of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 2 ; Figure 12 This is a schematic diagram of the second working platform portion of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 2 ; Figure 13 This is a schematic diagram of the top guide and drive section of the second working platform of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 1 ; Figure 14 This is a schematic diagram of the top guide and drive section of the second working platform of the wind power hybrid tower maintenance equipment disclosed in Embodiment 1 of the present invention. Figure 2 ; The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0017] 1. Platform support module, 2. Working platform module, 3. Main frame, 4. Tower 11 First base plate moving motor; 12 First base plate slide rail; 13 First base plate rack; 14 First base plate gear; 15 Second base plate rack; 16 Second base plate slide rail; 17 Second base plate gear; 18 Second base plate moving motor; 19 Base plate; 110 Fixing frame. 111 First slider, 112 Second slider, 113 Synchronous belt, 114 First lifting support frame bearing, 115 First synchronous belt pulley, 116 First lifting support frame, 117 Second synchronous belt pulley, 118 Lifting base shaft, 119 Lifting drive motor, 120 Second lifting support frame, 121 First chain, 122 First sprocket, 123 First lifting slide, 124 Second lifting slide, 125 Second lifting support frame bearing, 126 Second sprocket, 127 Second chain, 128 Third sprocket, 129 First fixing block on the chain, 130 Fourth sprocket, 131 Lifting top shaft, 132 Lifting upper support frame, 133 Lifting upper support frame bearing, 134 Second fixing block on the chain, 135 Lower fixing block on the chain 21 First working platform, 22 First Y-direction slide rail, 23 Clamping device slider, 24 Clamping device gear, 25 Clamping device platform, 26 Clamping device drive motor, 27 Clamping device drive cylinder, 28 Drive cylinder fixing plate, 29 Drive clamping block, 210 Clamping device rack, 211 First Y-direction slide rail, 212 First Y-direction slide rail, 213 Y-direction slider, 214 working frame base, 215 first working device, 216 raw material for the first working device, 217 raw material for the second working device, 218 second working platform, 219 second working device, 220 working platform support frame, 221 rotary platform output shaft, 222 rotary platform, 223 camera, 224 working frame, 225 lifting screw, 226 lifting support rod, 227 lifting drive block, 228 lifting nut, 229 lifting support rod limit block, 230 lifting screw limit block, 231 first locking motor fixing plate, 232 first locking motor, 233 first locking block, 234 second locking block, 235 second locking motor, 236 second locking motor fixing plate, 237 locking groove, 238 working platform drive motor, 239 track drive reducer, 240 track main drive wheel, 241 track drive motor, 242 first tower track frame track, 243 second tower track frame track. 244 First auxiliary support wheel, 245 Second auxiliary support wheel, 246 First auxiliary wheel fixing frame, 247 Top plate of working frame, 248 Second auxiliary wheel fixing frame, 249 Third auxiliary support wheel, 250 Fourth auxiliary support wheel, 251 First roller auxiliary wheel, 252 Second roller auxiliary wheel, 253 Track drive motor fixing frame; 41 First tower top platform, 42 Tower outer wall, 43 First tower track frame, 44 Second tower top platform, 45 Second tower track frame, 46 Third tower top platform, 47 Third tower track frame; Detailed Implementation It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. For ease of description, the words "up," "down," "left," and "right" appearing in this invention only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves. They do not limit the structure and are merely for the purpose of facilitating the description of this invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] In this embodiment, the following are defined: the radial direction along the wind turbine tower is the X direction; the height direction of the wind turbine tower is the Z direction; and the direction perpendicular to both the X and Z directions is the Y direction. As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this invention proposes a wind power hybrid tower maintenance operation equipment and its usage method.

[0020] Example 1 This embodiment provides a wind power tower maintenance equipment, mainly used for internal tower maintenance. It consists of a platform support module 1, a work platform module 2, a main frame 3, and a tower 4. The platform support module 1 primarily enables the lifting and horizontal movement of the work platform module 2. The main frame 3 serves as the support frame, and the tower 4 is the tower structure and internal structure. The platform support module 1 includes an X-direction drive device and a first Z-direction drive device. The X-direction drive device is mounted on the main frame 3, and the first Z-direction drive device is mounted on the X-direction drive device. The work platform module 2 is mounted on the first Z-direction drive device. The X-direction drive device enables the work platform module 2 to move in the X direction, and the first Z-direction drive device enables the work platform module 2 to move in the Z direction. Specifically, the X-direction drive device is a gear and rack drive device, including a first base plate moving motor 11, a second base plate moving motor 18, a first base plate gear 14, a second base plate gear 17, a first base plate rack 13, and a second base plate rack 15, etc. Specifically, the first base plate moving motor 11 and the second base plate moving motor 18 are fixed on the base plate 19. The first base plate gear 14 and the second base plate gear 17 are connected to the first base plate moving motor 11 and the second base plate moving motor 18. The first base plate gear 14 meshes with the first base plate rack 13, and the second base plate gear 17 meshes with the second base plate rack 15. The base plate 19 is fixed to the first slider 111 and the second slider 112, which exist on one side. The first slider 111 is connected to the first base plate slide rail 12, and the second slider 112 is connected to the second base plate slide rail 16. The first base plate rack 13, the second base plate rack 15, the first base plate slide rail 12, and the second base plate slide rail 16 are fixed on the fixing frame 110.

[0021] The first Z-direction driving device is a sprocket and chain driving device, which includes a first lifting support frame 116, a lifting drive motor 119, a second lifting support frame 120, a first chain 121 and a second chain 127, a first sprocket 122 and a second sprocket 126, etc. Specifically, the first lifting support frame 116, the lifting drive motor 119, and the second lifting support frame 120 are fixed on the base plate 19. The lifting bottom shaft 118 is connected to the lifting drive motor 119. The lifting bottom shaft 118 is connected to the first synchronous belt pulley 115 through the synchronous belt 113. The lifting bottom shaft 118 is also connected to the first lifting support frame bearing 114 and the second lifting support frame bearing 125. The first lifting support frame bearing 114 and the second lifting support frame bearing 125 are fixed in the first lifting support frame 116 and the second lifting support frame 120. The first sprocket 122 and the second sprocket 126 are fixed to the lifting base shaft 118. The first chain 121 and the second chain 127 mesh with the first sprocket 122 and the second sprocket 126. The first lifting slide 123 and the second lifting slide 124 are fixed to the main frame 3. The third sprocket 128 and the fourth sprocket 130 are located at the top of the main frame 3 and mesh with the first chain 121 and the second chain 127, respectively. The lifting top shaft 131 is connected to the third sprocket 128 and the fourth sprocket 130. The lifting upper support frame bearing 133 is connected to the lifting top shaft 131 and fixed to the inner side of the lifting upper support frame 132. The second fixing block 134 and the first fixing block 129 on the chain are fixed to the upper side of the first working platform 21, respectively. The lower fixing block 137 on the chain is fixed to the lower side of the first working platform 21. The first lifting slider 135 and the second lifting slider 136 are fixed to the lower side of the first working platform 21.

[0022] The work platform module 2 includes a first work platform 21 and a second work platform 218; the first work platform 21 is mounted on the first Z-direction drive device mentioned above; the second work platform 218 is mounted on the first work platform 21 via a work frame 224, and is driven to move up and down by the first Z-direction drive device below, and is driven to move horizontally along with the work frame by the Y-direction drive device. Specifically, the first working platform 21 is an L-shaped plate; a first Y-direction slide 22 is provided on the vertical surface of the L-shaped plate along the Y direction, and the clamping device is installed on the first Y-direction slide and moves along the first Y-direction slide 22 under the drive of the Y-direction driving device; a second Y-direction slide 211 and a second Y-direction slide 212 are provided on the horizontal surface of the L-shaped plate along the Y direction, and the working frame 224 is installed on the second Y-direction slide 211 and the second Y-direction slide 212.

[0023] Furthermore, a clamping device slider 23 is provided at the bottom of the clamping device platform 25. The clamping device slider 23 is connected to the first Y-direction slide 22, which is located on the first working platform 21. Similarly, the clamping device drive motor 26 drives the clamping device platform 25 to move along the first Y-direction slide 22. A drive cylinder fixing plate 28 is provided on the clamping device platform 25, and the clamping device drive cylinder 27 is fixed on the drive cylinder fixing plate 28. The drive clamping block 29 is connected to the clamping device drive cylinder 27. The drive clamping block 29 is used to clamp the working frame 224. By setting the sliding of the clamping device platform 25, the working frame 224 can be clamped by moving the drive clamping block 29, regardless of its position. The aforementioned clamping device drive motor 26, clamping device slider 23, first Y-direction slide 22, clamping device platform 25, etc. constitute the Y-direction drive device in this invention.

[0024] A Y-direction slider 213 is fixed below the base 214 of the working frame 224. The Y-direction slider 213 is installed on the second Y-direction slide 211 and the second Y-direction slide 212. A second working platform 218 is mounted on the working frame 224. A second Z-axis drive device drives the second working platform 218 to move up and down. The second Z-axis drive device includes a lifting support rod 226, a lifting screw 225, a lifting nut 228, a lifting drive block 227, and a working platform drive motor 238. The working frame 224 is connected to the working frame base 214. A lifting support rod limit block 229 and a lifting screw limit block 230 are fixed on the working frame base 214. The second working platform 218 is connected to the lifting drive block 227 and the lifting nut 228. The lifting nut 228 is mounted on the lifting screw 225, and the lifting drive block 227 is mounted on the lifting support rod 226. A working platform drive motor 238 is fixed on the top plate 247 of the working frame. The working platform drive motor 238 drives the lifting screw 225, and the lifting screw 225 drives the lifting nut 228. The lifting nut 228 moves the second working platform 218 up and down along the lifting support rod 226. Furthermore, a first working device 215, a second working device raw material 217, a first working device raw material 216, a second working device 219, and a working platform support frame 220 are fixed on the second working platform 218. The working platform support frame 220 has a rotary motor inside, which is connected to the rotary platform 222 through the rotary platform output shaft 221. A camera 223 is fixed on the rotary platform 222.

[0025] Furthermore, the top plate 247 of the working frame is also fixed with a first auxiliary support wheel 244, a second auxiliary support wheel 245, a third auxiliary support wheel 249, a fourth auxiliary support wheel 250, a main drive wheel 240, a track drive motor mounting bracket 253, and a track drive motor 241. The first auxiliary support wheel 244 and the second auxiliary support wheel 245 are mounted on the first auxiliary wheel mounting bracket 246; the third auxiliary support wheel 249 and the fourth auxiliary support wheel 250 are fixed on the second auxiliary wheel mounting bracket 248; the main drive wheel 240 is also fixed to the top plate 247 of the working frame through the track drive motor mounting bracket 253; the main drive wheel 240 is driven to rotate by the track drive motor 241, thereby realizing the sliding of the first working platform, the second working platform, etc. inside the tower track frame.

[0026] Workflow: This workflow requires the inspection of the tower section, including its inner wall. Three platforms are located within the inner wall: a first tower top platform 42, a second tower top platform 44, and a third tower top platform 46. The first tower top platform 42 houses a first tower track frame 43, the second tower top platform 44 houses a second tower track frame 45, and the third tower top platform 46 houses a third tower track frame 47. Each tower track frame contains tracks; for example, the first tower track frame 43 has opposing first tower track frame tracks 242 and second tower track frame tracks 243. The first tower track frame tracks 242 and second tower track frame tracks 243 primarily support auxiliary wheels. The specific workflow is described below: The first base plate moving motor 11 and the second base plate moving motor 18 drive the working platform module 2 to move back and forth. During docking, the entire working platform module 2 is moved from the underside of the first tower track frame 43 to the docking position. Then, the lifting drive motor 119 drives the working platform module 2 to rise to the designated height. At this moment, the second working platform 218 is located at the center of the first working platform 21, so it will not interfere with the first tower track frame 43. The movement and extension of the clamping device drive cylinder 27 drive the clamping block 29 to lock the working frames 224 on both sides. The movement of the second working platform 218 is achieved by the clamping device drive motor 26 driving the clamping device drive cylinder 27.

[0027] When scanning is performed at the height of the first tower track frame 43, the first locking motor 232 and the second locking motor 235 respectively drive the first locking block 233 and the second locking block 234 to lock, so as to ensure safety.

[0028] After height alignment, the drive clamping block 29 moves the second working platform 218. At this moment, the track drive motor 241 drives the main track drive wheel 240 to rotate. Both ends of the first tower track frame 43 are straight sections. As the main track drive wheel 240 enters the first tower track frame 43, the auxiliary wheel 244, the first auxiliary support wheel, etc., also engage with the groove of the first tower track frame track 243. As the second working platform slider 213 disengages from the second working platform slide rail 212, the part of the second working platform 218 enters the first tower track frame 43 and rotates. During rotation, the second working platform drive motor 238 drives the second working platform 218 to rise and fall between the first tower top platform 41 and the second tower top platform 44, so as to realize close-range scanning of the side wall between the first tower top platform 41 and the second tower top platform 44. The rotating platform 222 can rotate and the camera 223 itself has the function of tilting up and down. It can meet the height occupied by the first tower track frame 43 and also complete close-range identification and shooting. It can also carry the first working device 215 to work, and the equipment to be carried can be confirmed according to the specific situation, realizing integrated maintenance.

[0029] Because the first auxiliary support wheel 244 is strictly limited by the first tower track frame 243, after the maintenance task of this layer is completed, the part where the second working platform 218 is located will return along the predetermined track. With the guidance of the end straight track, the slider 213 of the 213 working platform returns to the second working platform slide 212, and then the main drive wheel 240 of the track disengages from the first tower track frame 43, completing all maintenance of this layer.

[0030] At this moment, the first base plate moving motor 11 and the second base plate moving motor 18 will drive the working platform module 2 to move to the center of the tower, and then descend to the next level (the second tower top platform 44) and repeat the previous operation to achieve a comprehensive inspection of the tower interior. This invention can achieve continuous inspection even when each platform exists in the tower.

[0031] Example 2 This embodiment provides a wind power hybrid tower maintenance operation equipment. This equipment is mainly used for the external maintenance of the tower. The main difference between this device and Embodiment 1 is that the linear drive device (first base plate moving motor 11, first base plate slide rail 12, first base plate rack 13, first base plate gear 14, second base plate rack 15, second base plate slide rail 16, second base plate gear 17, second base plate moving motor 18, base plate 19, fixing frame 110, first slider 111, second slider 112) at the bottom of the main frame 3 in Embodiment 1 is replaced with a circular guide rail. Because the outer wall structure of the tower is different from its internal structure, the maintenance of the outer wall of the tower is not hindered by the platform. Therefore, when maintaining the outer wall structure of the tower, it is only necessary to replace the linear drive device at the bottom of the main frame 3 with a circular guide rail to achieve a complete maintenance. There is no need for a three-layer tower track frame, and it can be directly inspected.

[0032] Finally, it should be noted that relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for maintenance of a wind turbine hybrid tower, utilizing a wind turbine hybrid tower maintenance equipment for maintenance of the tower's inner wall, characterized in that... The wind power hybrid tower maintenance equipment includes a main frame, an X-direction drive device on the main frame, a first Z-direction drive device on the X-direction drive device, a first working platform mounted on the first Z-direction drive device, a Y-direction drive device and a working frame on the first working platform, the Y-direction drive device driving a clamping device to clamp the working frame to move in the Y direction, a second Z-direction drive device fixed on the working frame, the second Z-direction drive device driving a second working platform to move up and down, a working device and an image acquisition device on the second working platform; and auxiliary support wheels and track main drive wheels are provided on the top of the working frame. The method for operating the wind turbine hybrid tower maintenance includes the following steps: placing the wind turbine hybrid tower maintenance equipment inside the tower; then, the X-direction drive device moves the first working platform back and forth, moving the first working platform from the underside of the first tower track frame to the docking position. Then, the first Z-direction drive device raises the first working platform to a designated height. At this moment, the second working platform is located at the center of the working platform. The clamping device then moves to lock the working frame. When scanning at the height of the first tower track frame, the first working platform locks. After height alignment, the clamping device moves the second working platform. At this time, the main drive wheel of the track rotates. Both ends of the first tower track frame are straight sections. As the main drive wheel enters the interior of the first tower track frame, the auxiliary support wheel also engages with the groove of the first tower track frame. Then, the portion of the second working platform enters the interior of the first tower track frame and rotates. During rotation, the second Z-direction drive device drives the second working platform to rise and fall between the first tower top platform and the second tower top platform, so as to realize close-range up and down operation on the side wall between the first tower top platform and the second tower top platform. After completing the maintenance work on this level, the section where the second work platform is located will return along the predetermined track. Guided by the end straight track, the second work platform will detach from the first tower track frame and return to the first work platform, completing all maintenance on the first level. Then, the first Z-direction drive device moves the first working platform to the center of the tower, and then descends to the next level. The above operation is repeated to achieve a comprehensive overhaul of the tower's interior.

2. The method for maintenance of wind power hybrid towers as described in claim 1, characterized in that, The X-direction drive device is a drive device composed of a servo motor and a gear rack.

3. The method for maintenance of wind power hybrid towers as described in claim 1, characterized in that, The first working platform is an L-shaped plate. A first Y-direction slide rail is provided on the vertical surface of the L-shaped plate along the Y direction. The clamping device is installed on the first Y-direction slide rail and moves along the first Y-direction slide rail under the drive of the Y-direction driving device. A second Y-direction slide rail is provided on the horizontal surface of the L-shaped plate along the Y direction. The working frame is installed on the second Y-direction slide rail.

4. The method for maintenance of wind power hybrid towers as described in claim 1, characterized in that, The second working platform is equipped with a rotating platform, and the image acquisition device is installed on the rotating platform.

5. The method for maintenance of wind power hybrid towers as described in claim 1, characterized in that, The first Z-direction drive device is a drive device composed of a servo motor and a sprocket chain.

6. The method for maintenance of wind power hybrid towers as described in claim 1, characterized in that, The second Z-direction drive device is a drive device composed of a servo motor and a lead screw.

7. The method for maintenance of wind power hybrid towers as described in claim 1, characterized in that, A locking device is also provided on the side or rear of the first working platform to lock the first working platform.

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