A wind power tower cable laying auxiliary device

Abstract

The application provides a wind power tower cable laying auxiliary device, and belongs to the technical field of wind power generation. The wind power tower cable laying auxiliary device comprises a ladder set in a wind power tower, a climbing rod is arranged on the ladder, the climbing rod is arranged in a U shape and comprises multiple groups, a lifting mechanism is arranged on the ladder, the lifting mechanism comprises a driving gear and a driven gear driven by a driving assembly, a clamping and fixing assembly is arranged on an auxiliary frame in the lifting mechanism, and the clamping and fixing assembly is used for clamping and fixing a cable. The lifting mechanism constructs a vertical movement path in the ladder. The driving assembly outputs power, so that the lifting mechanism realizes stable up-down displacement along the ladder. The clamping and fixing assembly is integrated on the auxiliary frame of the lifting mechanism. During the movement of the lifting mechanism, the clamping and fixing assembly applies uniform clamping force to the cable to be laid in the wind power tower, so as to limit the shaking and deviation of the cable.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, and in particular to an auxiliary device for laying cables on wind turbine towers. Background Technology

[0002] As the core supporting structure for wind power generation, wind turbine towers require the installation of numerous cables for power transmission and equipment control. Cable laying is a critical high-altitude operation involving narrow working spaces and significant height differences, demanding extremely high levels of safety and efficiency.

[0003] The laying of cables inside wind turbine towers has long relied on manual high-altitude operations, requiring personnel to climb the towers and drag the cables. This work is physically demanding and carries significant risks. The limited space inside the towers makes the cables prone to swaying, shifting, tangling, and scraping, making it difficult to ensure the stability and standardization of the laying process. This seriously affects construction progress and operational safety.

[0004] Existing cable laying methods lack specialized auxiliary devices adapted to tower ladder structures, making it difficult to achieve automated and stable cable transport along the ladder path. Manual operation is prone to safety accidents, and the laying accuracy and efficiency are low, making it difficult to meet the needs of large-scale and standardized cable laying for wind power towers. Summary of the Invention

[0005] This invention provides an auxiliary device for laying cables on wind power towers to solve the technical problems of existing cable laying methods lacking dedicated auxiliary devices adapted to the tower ladder structure, making it difficult to achieve automated and stable cable transport along the ladder path, and manual operation is prone to safety accidents. In addition, the laying accuracy is low and the efficiency is poor, making it difficult to meet the technical requirements of large-scale and standardized laying of wind power tower cables.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A wind turbine tower cable laying auxiliary device includes a ladder installed inside the wind turbine tower, a climbing rod installed on the ladder, the climbing rod being U-shaped and having multiple sets, and a lifting mechanism installed on the ladder, the lifting mechanism including a driving tooth and a driven tooth that are driven to rotate by a driving component. A clamping and fixing assembly is disposed on an auxiliary frame included in the lifting mechanism, and the clamping and fixing assembly is used to clamp and fix the cable.

[0007] Optionally, the lifting mechanism includes an active channel opened on one side of the ladder, an engagement groove is provided in the active channel, an auxiliary frame is slidably installed on the ladder, a pair of driven teeth that cooperate with the engagement groove are rotatably installed in the auxiliary frame through a splitting and engaging component, a rotating shaft controlled by a driving component is rotatably installed in the auxiliary frame, and a pair of driving teeth whose radial position is controlled by the splitting and engaging component are slidably installed on the rotating shaft.

[0008] Optionally, the splitting and joining assembly includes a mounting block fixedly installed in an auxiliary frame, a threaded rod rotatably mounted on the mounting block, a pressing block threadedly connected to the threaded rod, the pressing block slidably mounted in the auxiliary frame, a pair of splitting and joining blocks cooperating with the pressing block slidably mounted in the auxiliary frame, a driven tooth rotatably mounted on the splitting and joining block, and a pair of push plates cooperating with the drive tooth fixedly mounted on the splitting and joining block.

[0009] Optionally, the drive assembly includes a mounting bracket fixedly mounted on an auxiliary frame, and a first motor is detachably mounted within the mounting bracket, the output shaft of the first motor being connected to a rotating shaft.

[0010] Optionally, the clamping and fixing assembly includes a set of guide rods slidably mounted on the auxiliary frame, a connecting piece fixedly mounted on the guide rod on the same side, the connecting pieces on both sides being connected by a synchronization assembly, an adjusting screw threaded through and connected to the connecting piece, the adjusting screw being rotatably mounted on the auxiliary frame, a ball joint fixedly mounted at the end of the guide rod away from the connecting piece, a clamping piece movably connected to the ball joint, and the clamping piece being made of a deformable material.

[0011] Optionally, the clamping piece has an installation cavity, a shape memory metal component is fixedly installed in the installation cavity, and an abutment piece is fixedly installed on the shape memory metal component.

[0012] Optionally, the contact plate has an anti-slip groove on the side that contacts the cable.

[0013] Optionally, the synchronization assembly includes synchronization plates slidably mounted within an auxiliary frame, with gears rotatably mounted on the auxiliary frame disposed between the synchronization plates, the gears meshing with a pair of meshing plates.

[0014] Optionally, a limiting component is provided inside the auxiliary frame. The limiting component includes a second motor fixedly installed inside the auxiliary frame. The output shaft of the second motor is provided with a threaded groove. A connecting frame is threadedly connected to the output shaft of the second motor. A snap-fit ​​plate is fixedly installed on the connecting frame. The snap-fit ​​plate is adapted to the drive teeth.

[0015] Optionally, a protective plate is slidably mounted on the auxiliary frame, and the protective plate can cover all components inside the auxiliary frame.

[0016] The beneficial effects of the above-described technical solution of the present invention are as follows: In the above scheme, a pre-installed ladder inside the wind turbine tower serves as the basic load-bearing structure, and the lifting mechanism relies on the ladder to construct a vertical movement path. The drive component outputs power, which drives the drive gear and driven gear to mesh and transmit power. Utilizing the mechanical transmission principle of gear meshing, the rotational power is converted into the linear lifting power of the lifting mechanism, enabling the lifting mechanism to achieve stable vertical displacement along the ladder.

[0017] The clamping and fixing components are integrated on the auxiliary frame of the lifting mechanism. During the movement of the lifting mechanism, the clamping and fixing components apply a uniform clamping force to the cable to be laid inside the wind turbine tower, limiting the cable swaying and deviation, and preventing the cable from getting tangled or scraping the inner wall of the tower when laid vertically, ensuring that the cable moves synchronously and accurately with the lifting mechanism. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the ladder structure of the present invention. Figure 3 This is a schematic diagram showing the cooperation between the lifting mechanism and the clamping and fixing components of the present invention; Figure 4 This is a schematic diagram of the structure of the active channel and the meshing groove of the present invention; Figure 5 This is a schematic diagram of the lifting mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the splitting and merging component of the present invention; Figure 7 This is a schematic diagram of the structure of the limiting component of the present invention; Figure 8 This is a schematic diagram illustrating the cooperation between the synchronization component and the clamping and fixing component of the present invention; Figure 9 This is a schematic diagram of the structure of the clamping piece of the present invention.

[0019] [Figure Labels] 1. Climbing ladders; 2. Lifting mechanism; 21. Moving channel; 22. Auxiliary frame; 23. Driven gear; 24. Rotating shaft; 25. Drive gear; 26. Engaging groove; 3. Separating and connecting components; 31. Mounting block; 32. Threaded rod; 33. Pressing block; 34. Separating and connecting block; 35. Push plate; 4. Drive assembly; 41. Mounting bracket; 42. First motor; 5. Clamping and fixing assembly; 51. Guide rod; 52. Connecting piece; 53. Adjusting screw; 54. Ball joint; 55. Clamping piece; 56. Mounting cavity; 57. Shape memory metal part; 58. Abutment piece; 6. Synchronization components; 61. Synchronization board; 62. Gears; 7. Limiting component; 71. Second motor; 72. Connecting frame; 73. Clip plate; 8. Protective panels. Detailed Implementation

[0020] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 9 As shown, an embodiment of the present invention provides a wind turbine tower cable laying auxiliary device, including a ladder 1 installed inside the wind turbine tower, a climbing rod installed on the ladder, the climbing rod being U-shaped and having multiple sets, a lifting mechanism 2 installed on the ladder 1, the lifting mechanism 2 including a driving tooth 25 and a driven tooth 23 driven to rotate by a driving component 4. The clamping and fixing component 5 is disposed on the auxiliary frame 22 included in the lifting mechanism 2, and the clamping and fixing component 5 is used to clamp and fix the cable. The wind turbine tower has a pre-installed ladder 1 as its basic load-bearing structure, and the lifting mechanism 2 relies on the ladder 1 to construct a vertical movement path. The drive component 4 outputs power, which drives the drive gear 25 and the driven gear 23 to mesh and transmit power. Utilizing the mechanical transmission principle of gear 62 meshing, the rotational power is converted into the linear lifting power of the lifting mechanism 2, enabling the lifting mechanism 2 to achieve stable up and down displacement along the ladder 1.

[0022] The clamping and fixing component 5 is integrated on the auxiliary frame 22 of the lifting mechanism 2. During the movement of the lifting mechanism 2, the clamping and fixing component 5 applies a uniform clamping force to the cable to be laid inside the wind turbine tower, restricting the cable from shaking or deviating, and preventing the cable from getting tangled or scraping the inner wall of the tower when laid vertically, thus ensuring that the cable moves synchronously and accurately with the lifting mechanism 2.

[0023] Multiple lifting mechanisms 2 enable stable vertical transport of cables within the wind turbine tower, avoiding the safety risks and inefficiencies of manual cable dragging, and laying the foundation for automated cable laying.

[0024] The lifting mechanism 2 includes an active channel 21 opened on one side of the ladder 1. The active channel 21 is provided with a meshing groove 26. An auxiliary frame 22 is slidably installed on the ladder 1. A pair of driven teeth 23 that cooperate with the meshing groove 26 are rotatably installed in the auxiliary frame 22 through a splitting and engaging component 3. A rotating shaft 24 controlled by a driving component 4 is rotatably installed in the auxiliary frame 22. A pair of driving teeth 25 whose radial position is controlled by the splitting and engaging component 3 are slidably installed on the rotating shaft 24. The movable channel 21 on one side of the ladder 1 provides guiding space for the movement of the auxiliary frame 22, and the meshing groove 26 in the channel serves as the transmission meshing reference surface. When the auxiliary frame 22 slides along the ladder 1, the splitting and engaging component 3 adjusts a pair of driven teeth 23 to open radially, so that the driven teeth 23 precisely mesh with the meshing groove 26, forming a stable driven transmission pair. The drive component 4 drives the rotating shaft 24 to rotate, and the rotating shaft 24 drives a pair of drive teeth 25 to rotate synchronously. The splitting and engaging component 3 synchronously controls the radial displacement of the drive teeth 25, so that the drive teeth 25 and the driven teeth 23 cooperate to form a closed-loop transmission chain. Through the power transmission principle of gear 62 meshing, the rotational motion of the rotating shaft 24 is converted into the smooth lifting and lowering motion of the auxiliary frame 22 along the ladder 1, adapting to the cable laying requirements of different heights.

[0025] The splitting assembly 3 includes a mounting block 31 fixedly installed in the auxiliary frame 22, a threaded rod 32 rotatably mounted on the mounting block 31, a pressing block 33 threadedly connected to the threaded rod 32, the pressing block 33 slidably mounted in the auxiliary frame 22, a pair of splitting blocks 34 that cooperate with the pressing block 33 slidably mounted in the auxiliary frame 22, a driven tooth 23 rotatably mounted on the splitting block 34, and a pair of push plates 35 that cooperate with the drive tooth 25 fixedly mounted on the splitting block 34; When the splitting assembly 3 is running, rotating the threaded rod 32 drives the pressing block 33 to slide along the inside of the auxiliary frame 22. The wedge-shaped surface of the pressing block 33 contacts the splitting block 34 and applies a lateral thrust, pushing a pair of splitting blocks 34 to slide symmetrically along the auxiliary frame 22. When the splitting block 34 moves, it drives the driven tooth 23 to open and close radially in sync, realizing the switching of engagement and disengagement between the driven tooth 23 and the meshing groove 26. At the same time, the splitting block 34 drives the push plate 35 to move synchronously. After the push plate 35 contacts the drive tooth 25, it pushes the drive tooth 25 to slide radially along the rotating shaft 24, matching the opening and closing amplitude of the driven tooth 23, ensuring that the drive tooth 25 and the driven tooth 23 always maintain a precise meshing state. Through the mechanical linkage principle, the gear 62 spacing is adaptively adjusted, realizing the synchronous linkage adjustment of the spacing between the drive tooth 25 and the driven tooth 23, adapting to the installation tolerance of the meshing groove 26 of the ladder 1, ensuring the smoothness of the lifting transmission process. The splitting assembly 3 facilitates the disassembly and installation of the auxiliary frame 22 while ensuring stable transmission.

[0026] The drive assembly 4 includes a mounting bracket 41 fixedly mounted on the auxiliary frame 22, and a first motor 42 is detachably mounted inside the mounting bracket 41. The output shaft of the first motor 42 is connected to the rotating shaft 24. When the drive assembly 4 is running, the detachable mounting bracket 41 provides stable support for the first motor 42, while also facilitating future maintenance and replacement of the motor. After the first motor 42 is powered on, its output shaft rotates. The output shaft is directly and rigidly connected to the rotating shaft 24, converting the motor's electrical energy into the rotational mechanical energy of the rotating shaft 24. This provides the rotating shaft 24 with stable and controllable rotational power. There is no intermediate transmission loss during the power transmission process. The direct drive principle ensures efficient power output. The speed can be adjusted by the motor to match different lifting speed requirements, providing an efficient and controllable power source for the lifting mechanism 2. This simplifies the power transmission path, reduces the probability of transmission failure, and adapts to the speed adjustment requirements of different laying conditions of wind turbine towers.

[0027] The clamping and fixing assembly 5 includes a set of guide rods 51 slidably mounted on the auxiliary frame 22. A connecting piece 52 is fixedly mounted on the guide rod 51 on the same side. The connecting pieces 52 on both sides are connected by a synchronization assembly 6. An adjusting screw 53 is threaded through and threaded onto the connecting piece 52. The adjusting screw 53 is rotatably mounted on the auxiliary frame 22. A ball joint 54 is fixedly mounted on the end of the guide rod 51 away from the connecting piece 52. A clamping piece 55 is movably connected to the ball joint 54. The clamping piece 55 is made of a deformable material. When the clamping and fixing component 5 is working, rotating the adjusting screw 53 causes the connecting piece 52 to slide along the auxiliary frame 22. The connecting piece 52 synchronously pulls the guide rod 51 on the same side to move. The synchronization component 6 ensures that the connecting pieces 52 on both sides move synchronously, ensuring symmetrical clamping action. The guide rod 51 is connected to the clamping piece 55 through the ball joint 54. The ball joint 54 gives the clamping piece 55 multi-directional rotational freedom to adapt to the bending curvature of the cable. The clamping piece 55 is made of deformable material. After contacting the cable, it undergoes elastic deformation, conforming to the outer surface contour of the cable, increasing the contact area, and initially realizing flexible clamping of the cable. This avoids damage to the cable insulation layer caused by rigid clamping, and realizes adaptive flexible clamping of cables of different diameters. It ensures the clamping fit while protecting the cable integrity and improves clamping adaptability.

[0028] The clamping piece 55 has an installation cavity 56, a memory metal part 57 is fixedly installed in the installation cavity 56, and an abutment piece 58 is fixedly installed on the memory metal part 57. When the clamping piece 55 deforms and fits the cable, the shape memory metal part 57 in the internal mounting cavity 56 is triggered to deform by the heat generated during subsequent use of the cable. The elastic recovery force of the shape memory metal pushes the abutment piece 58 outward to tighten the cable. The deformation force of the shape memory metal part 57 is evenly transmitted to the abutment piece 58, making the abutment piece 58 fit tightly with the cable. This compensates for the insufficient elastic force of the deformable clamping piece 55, enhances the clamping stability through the special mechanical properties of the shape memory metal, adapts to long-term clamping conditions, and enhances the clamping force and stability by utilizing the shape memory properties of the shape memory metal, preventing the cable from slipping during lifting and lowering, and improving clamping reliability.

[0029] The contact plate 58 has an anti-slip groove on the side that contacts the cable; The anti-slip groove on the side of the abutment piece 58 that contacts the cable forms a concave-convex interlocking structure with the outer surface of the cable when the abutment piece 58 is clamped against the cable. The anti-slip groove increases the coefficient of friction between the abutment piece 58 and the cable, converting the clamping pressure on the cable into static friction. Through the principle of frictional anti-slip, it counteracts the cable's own weight and the inertial force during lifting and lowering, preventing the cable from sliding axially or circumferentially along the clamping surface, further eliminating the risk of slippage. By strengthening the friction of the clamping surface through the anti-slip groove, the problem of cable slippage is completely eliminated, ensuring the positional stability of the cable during installation.

[0030] Synchronization component 6 includes synchronization plates 61 that are slidably mounted in auxiliary frame 22, and gears 62 that are rotatably mounted on auxiliary frame 22 are arranged between synchronization plates 61. The gears 62 are meshed with a pair of meshing plates. When the synchronization component 6 is running, the displacement of the connecting piece 52 on one side causes the corresponding synchronization plate 61 to slide. The synchronization plate 61 meshes with the gear 62, and the rotation of the gear 62 causes the synchronization plate 61 on the other side to move in the opposite direction in a synchronous manner, forming a symmetrical linkage structure. The meshing transmission between the gear 62 and a pair of meshing plates converts the single-sided displacement into a double-sided synchronous displacement. Through the synchronous transmission principle of the gear 62 meshing, the movement amplitude and speed of the guide rods 51 and clamping pieces 55 on both sides are completely consistent, avoiding excessive clamping force on one side that could cause cable deviation or damage. This achieves precise synchronous movement of the clamping structure on both sides, ensures uniform clamping force, avoids damage to the cable caused by eccentric clamping, and improves clamping symmetry.

[0031] A limiting component 7 is provided inside the auxiliary frame 22. The limiting component 7 includes a second motor 71 fixedly installed inside the auxiliary frame 22. The output shaft of the second motor 71 is provided with a threaded groove. A connecting frame 72 is threadedly connected to the output shaft of the second motor 71. A snap-fit ​​plate 73 is fixedly installed on the connecting frame 72. The snap-fit ​​plate 73 is adapted to the drive gear 25. When the limit component 7 is working, the second motor 71 is energized and runs. The output shaft engages with the connecting frame 72 through a threaded groove, converting the rotational motion into the linear displacement of the connecting frame 72. The connecting frame 72 drives the locking plate 73 to move synchronously, causing the locking plate 73 to engage with the tooth groove gap of the drive tooth 25, restricting the rotational freedom of the drive tooth 25 and locking it in place. The self-locking principle of the threaded transmission ensures a stable locking state, preventing accidental slippage of the lifting mechanism 2. This is suitable for long-term cable laying operations, achieving precise locking and positioning of the lifting mechanism 2, eliminating the risk of accidental slippage, and meeting the safety requirements of mid-laying pauses and fixed-point operations.

[0032] A protective plate 8 is slidably installed on the auxiliary frame 22, and the protective plate 8 can cover all the components inside the auxiliary frame 22; The protective plate 8 slides along the auxiliary frame 22, covering the core components inside the auxiliary frame 22, such as the drive gear 25, driven gear 23, rotating shaft 24, and motor. The environment inside the wind turbine tower is humid and dusty. The protective plate 8 forms a physical barrier, preventing dust and moisture from entering the components and avoiding malfunctions such as gear 62 corrosion, motor short circuits, and transmission component jamming. At the same time, the protective plate 8 prevents operators from accidentally touching moving parts. Through physical protection principles, it enhances the operational safety and service life of the device, providing dust and moisture protection for the core components, extending equipment lifespan, mitigating safety hazards, and adapting to the harsh operating environment of wind turbine towers.

[0033] The working process of the wind turbine tower cable laying auxiliary device provided by the present invention is as follows: The wind turbine tower has a pre-installed ladder 1 as its basic load-bearing structure, and the lifting mechanism 2 relies on the ladder 1 to construct a vertical movement path. The drive component 4 outputs power, which drives the drive gear 25 and the driven gear 23 to mesh and transmit power. Utilizing the mechanical transmission principle of gear 62 meshing, the rotational power is converted into the linear lifting power of the lifting mechanism 2, enabling the lifting mechanism 2 to achieve stable up and down displacement along the ladder 1.

[0034] The clamping and fixing component 5 is integrated on the auxiliary frame 22 of the lifting mechanism 2. During the movement of the lifting mechanism 2, the clamping and fixing component 5 applies a uniform clamping force to the cable to be laid inside the wind turbine tower, restricting the cable from shaking or deviating, and preventing the cable from getting tangled or scraping the inner wall of the tower when laid vertically, thus ensuring that the cable moves synchronously and accurately with the lifting mechanism 2.

[0035] Multiple lifting mechanisms 2 enable stable vertical transport of cables within the wind turbine tower, avoiding the safety risks and inefficiencies of manual cable dragging, and laying the foundation for automated cable laying. The movable channel 21 on one side of the ladder 1 provides guiding space for the movement of the auxiliary frame 22, and the meshing groove 26 in the channel serves as the transmission meshing reference surface. When the auxiliary frame 22 slides along the ladder 1, the splitting and engaging component 3 adjusts a pair of driven teeth 23 to open radially, so that the driven teeth 23 and the meshing groove 26 are precisely engaged, forming a stable driven transmission pair. The drive component 4 drives the rotating shaft 24 to rotate, and the rotating shaft 24 drives a pair of drive teeth 25 to rotate synchronously. The splitting and engaging component 3 synchronously controls the radial displacement of the drive teeth 25, so that the drive teeth 25 and the driven teeth 23 cooperate to form a closed-loop transmission chain. Through the power transmission principle of gear 62 meshing, the rotational motion of the rotating shaft 24 is converted into the smooth lifting and lowering motion of the auxiliary frame 22 along the ladder 1, which is suitable for cable laying requirements at different heights. When the splitting assembly 3 is running, rotating the threaded rod 32 drives the pressing block 33 to slide along the inside of the auxiliary frame 22. The wedge-shaped surface of the pressing block 33 contacts the splitting block 34 and applies a lateral thrust, pushing a pair of splitting blocks 34 to slide symmetrically along the auxiliary frame 22. When the splitting block 34 moves, it drives the driven tooth 23 to open and close radially in sync, realizing the switching of engagement and disengagement between the driven tooth 23 and the meshing groove 26. At the same time, the splitting block 34 drives the push plate 35 to move synchronously. After the push plate 35 contacts the drive tooth 25, it pushes the drive tooth 25 to slide radially along the rotating shaft 24, matching the opening and closing amplitude of the driven tooth 23, ensuring that the drive tooth 25 and the driven tooth 23 always maintain a precise meshing state. Through the mechanical linkage principle, the gear 62 spacing is adaptively adjusted, realizing the synchronous linkage adjustment of the spacing between the drive tooth 25 and the driven tooth 23, adapting to the installation tolerance of the meshing groove 26 of the ladder 1, ensuring the smoothness of the lifting transmission process. The splitting assembly 3 facilitates the disassembly and installation of the auxiliary frame 22 while ensuring stable transmission. When the drive assembly 4 is running, the detachable mounting bracket 41 provides stable support for the first motor 42, and facilitates the later maintenance and replacement of the motor. After the first motor 42 is powered on, the output shaft rotates. The output shaft is directly and rigidly connected to the rotating shaft 24, converting the electrical energy of the motor into the rotational mechanical energy of the rotating shaft 24, providing stable and controllable rotational power to the rotating shaft 24. There is no intermediate transmission loss in the power transmission process. The power output efficiency is guaranteed by the direct drive principle. The speed can be adjusted by the motor to match different lifting speed requirements, providing an efficient and controllable power source for the lifting mechanism 2, simplifying the power transmission path, reducing the probability of transmission failure, and adapting to the speed adjustment requirements of different laying conditions of wind power towers. When the clamping and fixing component 5 is working, rotating the adjusting screw 53 causes the connecting piece 52 to slide along the auxiliary frame 22. The connecting piece 52 synchronously pulls the guide rod 51 on the same side to move. The synchronization component 6 ensures that the connecting pieces 52 on both sides move synchronously, ensuring symmetrical clamping action. The guide rod 51 is connected to the clamping piece 55 through the ball joint 54. The ball joint 54 gives the clamping piece 55 multi-directional rotational freedom to adapt to the bending curvature of the cable. The clamping piece 55 is made of deformable material. After contacting the cable, it undergoes elastic deformation, conforming to the outer surface contour of the cable, increasing the contact area, and initially realizing flexible clamping of the cable. This avoids damage to the cable insulation layer caused by rigid clamping, realizes adaptive flexible clamping of cables of different diameters, ensures clamping fit while protecting cable integrity, and improves clamping adaptability. When the clamping plate 55 deforms and fits the cable, the shape memory metal component 57 in the internal mounting cavity 56 is triggered to deform by the heat generated during subsequent use of the cable. The elastic recovery force of the shape memory metal pushes the abutment plate 58 outward to tighten the cable. The deformation force of the shape memory metal component 57 is evenly transmitted to the abutment plate 58, making the abutment plate 58 fit tightly with the cable. This compensates for the insufficient elastic force of the deformable clamping plate 55, enhances the clamping stability through the special mechanical properties of the shape memory metal, adapts to long-term clamping conditions, and enhances the clamping force and stability by utilizing the shape memory properties of the shape memory metal, preventing the cable from slipping during lifting and lowering, and improving clamping reliability. The anti-slip groove on the side of the abutment piece 58 that contacts the cable forms a concave-convex interlocking structure with the outer surface of the cable when the abutment piece 58 is clamped against the cable. The anti-slip groove increases the coefficient of friction between the abutment piece 58 and the cable, converting the clamping pressure on the cable into static friction. Through the principle of frictional anti-slip, it counteracts the cable's own weight and the inertial force during lifting and lowering, preventing the cable from sliding axially or circumferentially along the clamping surface, further eliminating the risk of slippage. By strengthening the friction of the clamping surface through the anti-slip groove, the problem of cable slippage is completely eliminated, ensuring the positional stability of the cable during the laying process. When the synchronization component 6 is running, the displacement of the connecting piece 52 on one side causes the corresponding synchronization plate 61 to slide. The synchronization plate 61 meshes with the gear 62, and the rotation of the gear 62 causes the synchronization plate 61 on the other side to move in the opposite direction in a synchronous manner, forming a symmetrical linkage structure. The meshing transmission between the gear 62 and a pair of meshing plates converts the single-sided displacement into a double-sided synchronous displacement. Through the synchronous transmission principle of the gear 62 meshing, it is ensured that the movement amplitude and speed of the guide rods 51 and clamping pieces 55 on both sides are completely consistent, avoiding excessive clamping force on one side that could cause cable offset or damage. This achieves precise synchronous movement of the clamping structure on both sides, ensures uniform clamping force, avoids damage to the cable caused by eccentric clamping, and improves clamping symmetry. When the limit component 7 is working, the second motor 71 is energized and runs. The output shaft engages with the connecting frame 72 through a threaded groove, converting the rotational motion into the linear displacement of the connecting frame 72. The connecting frame 72 drives the locking plate 73 to move synchronously, causing the locking plate 73 to engage with the tooth groove of the drive tooth 25, restricting the rotational freedom of the drive tooth 25 and locking and fixing the drive tooth 25. Through the self-locking principle of the threaded transmission, the locking state is ensured to be stable, preventing the lifting mechanism 2 from sliding unexpectedly. This is suitable for long-term use in cable laying, achieving precise locking and positioning of the lifting mechanism 2, eliminating the risk of accidental slippage, and meeting the safety requirements of mid-laying pauses and fixed-point operations. The protective plate 8 slides along the auxiliary frame 22, covering the core components inside the auxiliary frame 22, such as the drive gear 25, driven gear 23, rotating shaft 24, and motor. The environment inside the wind turbine tower is humid and dusty. The protective plate 8 forms a physical barrier, preventing dust and moisture from entering the components and avoiding malfunctions such as gear 62 corrosion, motor short circuits, and transmission component jamming. At the same time, the protective plate 8 prevents operators from accidentally touching moving parts. Through physical protection principles, it enhances the operational safety and service life of the device, providing dust and moisture protection for the core components, extending equipment lifespan, mitigating safety hazards, and adapting to the harsh operating environment of wind turbine towers.

[0036] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An auxiliary device for laying cables on wind turbine towers, characterized in that, It includes a ladder (1) installed inside the wind turbine tower, the ladder is equipped with climbing rods, the climbing rods are U-shaped and there are multiple sets of them, the ladder (1) is equipped with a lifting mechanism (2), the lifting mechanism (2) includes a driving tooth (25) and a driven tooth (23) driven to rotate by the driving component (4). The clamping and fixing component (5) is disposed on the auxiliary frame (22) included in the lifting mechanism (2), and the clamping and fixing component (5) is used to clamp and fix the cable.

2. The auxiliary device for cable laying in wind turbine towers according to claim 1, characterized in that, The lifting mechanism (2) includes an active channel (21) opened on one side of the ladder (1), and a meshing groove (26) is provided in the active channel (21). An auxiliary frame (22) is slidably installed on the ladder (1). A pair of driven teeth (23) that cooperate with the meshing groove (26) are rotatably installed in the auxiliary frame (22) through a splitting assembly (3). A rotating shaft (24) controlled by a driving assembly (4) is rotatably installed in the auxiliary frame (22). A pair of driving teeth (25) whose radial position is controlled by the splitting assembly (3) are slidably installed on the rotating shaft (24).

3. The auxiliary device for cable laying in wind turbine towers according to claim 2, characterized in that, The splitting and joining assembly (3) includes a mounting block (31) fixedly installed in an auxiliary frame (22), a threaded rod (32) rotatably mounted on the mounting block (31), a pressing block (33) threadedly connected to the threaded rod (32), the pressing block (33) slidably mounted in the auxiliary frame (22), a pair of splitting and joining blocks (34) that cooperate with the pressing block (33) slidably mounted in the auxiliary frame (22), the driven tooth (23) rotatably mounted on the splitting and joining block (34), and a pair of push plates (35) that cooperate with the drive tooth (25) fixedly mounted on the splitting and joining block (34).

4. The auxiliary device for cable laying in wind turbine towers according to claim 3, characterized in that, The drive assembly (4) includes a mounting bracket (41) fixedly mounted on an auxiliary frame (22), and a first motor (42) is detachably mounted inside the mounting bracket (41). The output shaft of the first motor (42) is connected to the rotating shaft (24).

5. The auxiliary device for cable laying in wind turbine towers according to claim 4, characterized in that, The clamping and fixing assembly (5) includes a set of guide rods (51) slidably mounted on the auxiliary frame (22). A connecting piece (52) is fixedly mounted on the guide rod (51) on the same side. The connecting pieces (52) on both sides are connected by a synchronization assembly (6). An adjusting screw (53) is threaded through and connected to the connecting piece (52). The adjusting screw (53) is rotatably mounted on the auxiliary frame (22). A ball joint (54) is fixedly mounted on the end of the guide rod (51) away from the connecting piece (52). A clamping piece (55) is movably connected to the ball joint (54). The clamping piece (55) is made of a deformable material.

6. The auxiliary device for cable laying in wind turbine towers according to claim 5, characterized in that, The clamping piece (55) has an installation cavity (56) inside, and a memory metal part (57) is fixedly installed inside the installation cavity (56). An abutment piece (58) is fixedly installed on the memory metal part (57).

7. The auxiliary device for cable laying in wind turbine towers according to claim 6, characterized in that, The contact plate (58) has an anti-slip groove on the side that contacts the cable.

8. The auxiliary device for cable laying in wind turbine towers according to claim 7, characterized in that, The synchronization component (6) includes a synchronization plate (61) slidably mounted in the auxiliary frame (22), and a gear (62) rotatably mounted on the auxiliary frame (22) is provided between the synchronization plates (61), and the gear (62) meshes with a pair of meshing plates.

9. The auxiliary device for cable laying in wind turbine towers according to claim 8, characterized in that, The auxiliary frame (22) is provided with a limiting component (7). The limiting component (7) includes a second motor (71) fixedly installed in the auxiliary frame (22). The output shaft of the second motor (71) is provided with a threaded groove. A connecting frame (72) is threadedly connected to the output shaft of the second motor (71). A snap-fit ​​plate (73) is fixedly installed on the connecting frame (72). The snap-fit ​​plate (73) is adapted to the drive gear (25).

10. The auxiliary device for cable laying in wind turbine towers according to claim 9, characterized in that, A protective plate (8) is slidably installed on the auxiliary frame (22), and the protective plate (8) can cover all components inside the auxiliary frame (22).

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