A top-mounted nacelle cable laying device for wind power generation

Abstract

This invention discloses a top-mounted nacelle cable laying device for wind power generation, belonging to the technical field of wind power equipment. It includes: a tower, a lifting mechanism, an anti-torsion mechanism, and a support mechanism. The nacelle is installed on top of the tower. The lifting mechanism includes a first lifting assembly and a second lifting assembly, which are installed inside the tower for lifting and laying cables. The anti-torsion mechanism is installed inside the tower to prevent the cable from twisting during laying. The support mechanism is also installed inside the tower to support the cable and prevent surface damage during laying. This invention has a simple structure, is easy to use, and can quickly complete cable laying.

Description

Technical Field

[0001] This invention belongs to the technical field of wind power generation equipment, and specifically relates to a top-mounted nacelle cable laying device for wind power generation. Background Technology

[0002] With the rapid development of wind power generation technology, the scale and single-unit capacity of wind turbine generators are constantly increasing, and high-power wind turbines are gradually becoming an important direction for industry development. Traditional wind turbine nacelle layouts, when dealing with high-power wind turbines, easily expose problems such as cramped internal space, inconvenient equipment installation and maintenance, high operation and maintenance costs, and increased construction safety risks. To optimize the internal space layout of the nacelle, some wind turbines adopt a layout where transformers and other electrical equipment are located in the upper part of the nacelle.

[0003] This type of top-mounted nacelle layout can optimize the internal space of the nacelle to a certain extent, making the installation, commissioning, and maintenance of equipment more convenient, and helping to shorten maintenance time and improve the efficiency of wind turbine operation and maintenance. At the same time, this layout can also optimize the arrangement of related equipment within the nacelle, facilitating the setting of cable connections and power transmission paths.

[0004] However, the top-mounted nacelle layout also presents new challenges for cable laying. Due to the high elevation of the nacelle above the ground, limited space within the tower, and complex construction environment, traditional cable laying methods, involving cable lifting and traction within the tower, are prone to problems such as cable twisting, swaying, wear, and low laying efficiency, making it difficult to meet the stability and safety requirements of top-mounted nacelle cable laying. To address these issues, this invention provides a top-mounted nacelle cable laying device for wind power generation. Summary of the Invention

[0005] To address the aforementioned technical problems, the technical solution adopted by this invention is: a top-mounted nacelle cable laying device for wind power generation, the cable laying device comprising: The tower has multiple linearly arranged fixed platforms installed inside it. The fixed platforms are provided with through holes that allow people to pass through and through holes that allow cables to pass through. The tower has an engine compartment installed on top. The lifting mechanism includes a first lifting assembly and a second lifting assembly, which are installed inside the tower and are used to lift and lay cables. An anti-torsion mechanism is installed inside the tower and is used to prevent the cable from twisting during the laying process. A support mechanism is installed inside the tower and is used to support the cable and prevent the cable surface from being damaged during the laying process.

[0006] Furthermore, the first lifting assembly includes a crane, which is fixedly installed on a fixed platform. One end of a guide chain is connected to the crane, and the other end of the guide chain is connected to a hook. The guide chain is wound around the crane, and the hook moves one end of the cable to the location of the anti-torsion mechanism.

[0007] Furthermore, the second lifting assembly includes a second crane, which is fixedly installed on a fixed platform and located above the first crane. One end of a second guide chain is connected to the second crane, and the other end of the second guide chain is connected to a second hook. The second guide chain is wound around the second crane, and the cable located at the anti-torsion mechanism is moved by the second hook.

[0008] Furthermore, the anti-torsion mechanism includes an anti-torsion platform located below the crane and fixedly connected to the fixed platform. The anti-torsion platform is provided with two symmetrically arranged guide cylinders. When laying the cable, the cable will pass through the two guide cylinders, which are used to prevent the cable from twisting during the laying process.

[0009] Furthermore, the anti-torsion mechanism also includes two symmetrically arranged corrugated plates, which are fixedly installed on the anti-torsion platform. The two corrugated plates are slidably engaged with two ball joints, which are fixedly installed on the support frame. An extrusion plate is fixedly installed on one side of the two support frames that are close to each other. A central cylinder is provided between the two extrusion plates. Both the support frame and the central cylinder are installed on the moving component.

[0010] Furthermore, the moving component includes a guide block, which is slidably engaged with the support frame, and a second return spring is provided between the guide block and the support frame. When the two support frames slide on the guide block in a direction that approaches or moves away from each other, the extrusion plate will extrude the central cylinder or release the central cylinder.

[0011] Furthermore, the moving component also includes a sliding plate, which slides in conjunction with a rectangular groove on the anti-torsion platform, and a return spring is provided between the sliding plate and the rectangular groove. The sliding plate is provided with a rectangular groove, which slides in conjunction with a boss. The boss is fixedly mounted on a turntable, which is rotatably mounted on the anti-torsion platform. The turntable is fixedly connected to the output shaft of the motor, and the motor is fixedly mounted below the anti-torsion platform. The sliding plate is fixedly connected to a guide block.

[0012] Furthermore, the support mechanism includes a vertical pole that passes through multiple fixed platforms and is fixedly connected to the interior of the tower. Two spaced sliders are slidably mounted on the vertical pole. One end of a drive arm is rotatably mounted on each slider. The other end of the drive arm is rotatably connected to a rotating arm. One end of the rotating arm is rotatably connected to the vertical pole, and the other end is rotatably connected to a roller. A torsion spring is provided between the rotating arm and the vertical pole. The sliders are fixedly connected to a metal plate. A return spring is provided between the metal plate and the vertical pole. An electromagnet is located below the metal plate and is fixedly connected to the fixed platform.

[0013] Furthermore, the cable laying equipment also includes a plurality of linearly arranged fixing buckles, which are connected to the uprights by bolts and are used to fix the cable to the uprights.

[0014] Furthermore, the cable laying equipment also includes an inner ladder and an outer ladder, wherein the inner ladder is detachably installed inside the tower and the outer ladder is detachably installed outside the tower.

[0015] The beneficial effects of this invention compared with the prior art are: (1) This invention completes the laying of cables through a lifting mechanism, an anti-torsion mechanism, and a support mechanism. During the laying process, the anti-torsion mechanism can restrict the cable, so that the cable always moves along the predetermined route, preventing torsion and improving the laying efficiency; (2) The lifting mechanism in this invention includes a first lifting component and a second lifting component. The first lifting component and the second lifting component can realize the layered lifting of the cable, effectively avoiding stress concentration, making the lifting and laying more flexible, and improving the laying efficiency of the cable; (3) By setting the anti-torsion mechanism, the cable can be moved more smoothly, and the surface of the cable can be treated accordingly during the laying process, such as applying anti-corrosion agents and antioxidants. Under the premise of ensuring laying efficiency, the service life of the cable can also be improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a cross-sectional view of the overall structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the overall structure of the invention, omitting the tower section and the remaining structural elements.

[0019] Figure 4 A schematic diagram of the anti-torsion mechanism.

[0020] Figure 5 This is a schematic diagram of the lifting mechanism.

[0021] Figure 6 Schematic diagram of the anti-torsion mechanism Figure 1 .

[0022] Figure 7 Schematic diagram of the anti-torsion mechanism Figure 2 .

[0023] Figure 8 This is a partial structural diagram of the present invention. Figure 1 .

[0024] Figure 9 for Figure 8 A magnified schematic diagram of the structure at point A in the middle.

[0025] Figure 10 This is a partial structural diagram of the present invention. Figure 2 .

[0026] Figure 11 for Figure 10 A magnified schematic diagram of the structure at point B in the middle.

[0027] Reference numerals: 1-Tower; 2-Crane 1; 3-Hook 1; 4-Crane 2; 5-Hook 2; 6-Fixed platform; 7-Through hole; 8-Motor; 9-Anti-torsion platform; 10-Wave plate; 11-Turntable; 12-Boss; 13-Sliding plate; 14-Rectangular groove 1; 15-Rectangular groove 2; 16-Reset spring 1; 17-Guide block; 18-Reset spring 2; 19-Support frame; 20-Ball head rod; 21-Extrusion plate; 22-Center cylinder; 23-Upright pole; 24-Wire hole; 25-Roller; 26-Rotating arm; 27-Torsion spring; 28-Drive arm; 29-Slider; 30-Metal plate; 31-Electromagnet; 32-Reset spring 3; 33-Fixing buckle; 34-Inner ladder; 35-Outer ladder; 36-Guide cylinder; 37-Nacelle. Detailed Implementation

[0028] To facilitate understanding of the present invention, the following embodiments are provided. Those skilled in the art should understand that these embodiments are merely illustrative and should not be construed as limiting the scope of the invention.

[0029] It should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Example: Figures 1 to 11The above-mounted nacelle cable laying equipment for wind power generation is shown. The cable laying equipment includes: Tower 1, with multiple linearly arranged fixed platforms 6 installed inside the tower 1. The fixed platforms 6 are provided with through holes 7 that allow people to pass through and cable holes 24 that allow cables to pass through. A cabin 37 is installed on top of the tower 1. like Figure 1 , Figure 3 , Figure 5 , Figure 8 As shown, a through hole 7 is provided on the fixed platform 6, allowing workers to move up or down through the through hole 7 during the work process; in addition, during the cable lifting process, the cable and the second hook 5 can both pass through the cable threading hole 24 and move upward. The lifting mechanism includes a first lifting assembly and a second lifting assembly, which are installed inside the tower 1. The first lifting assembly and the second lifting assembly are used to lift and lay cables. Anti-torsion mechanism, installed inside tower 1, is used to prevent the cable from twisting during the laying process; The support mechanism is installed inside the tower 1. The support mechanism is used to support the cable and prevent the cable surface from being damaged during the laying process.

[0031] During the cable laying process, the entire roll of cable is located outside the tower 1. Then, the workers drag one end of the cable through the entrance at the bottom of the tower 1 into the interior of the tower 1. The first and second lifting assemblies are used to lift the cable upwards in sequence, and finally connect it to the electronic device installed at the nacelle 37 above the tower 1.

[0032] During cable lifting, the cable passes through an anti-torsion mechanism, which ensures stable movement of the cable during lifting and prevents damage to its surface due to torsion. The support mechanism also prevents wear on the cable surface, ensuring smooth cable movement.

[0033] The first lifting assembly includes a crane 2, which is fixedly installed on a fixed platform 6. One end of a guide chain is connected to the crane 2, and the other end of the guide chain is connected to a hook 3. The guide chain is wound around the crane 2, and the hook 3 moves one end of the cable to the location of the anti-torsion mechanism.

[0034] like Figure 2 , Figure 3 As shown, multiple fixed platforms 6 are installed inside the tower 1. Each fixed platform 6 can be fixed to the inner wall of the tower 1 by welding or by bolts. The crane 2 is fixedly installed on one of the fixed platforms 6, and the crane 2 is located above the anti-torsion mechanism.

[0035] During cable laying, after the workers drag one end of the cable into the tower 1, they start crane 2. The output end of crane 2 rotates, and the guide chain wound on crane 2 lowers hook 3. When hook 3 is low enough to contact the cable, crane 2 is shut off. After the workers secure the cable end to hook 3, crane 2 is started again, causing it to move the guide chain and hook 3 upwards. The cable moves upwards along with hook 3. As the cable rises, the entire roll of cable, located outside tower 1, is gradually fed into the tower 1.

[0036] After the hook 3 lifts the end of the cable to the position of the anti-torsion mechanism, the crane 2 is shut down, and the workers remove the end of the cable from the hook 3 and pass it through the anti-torsion mechanism.

[0037] The second lifting assembly includes a second crane 4, which is fixedly installed on a fixed platform 6. The second crane 4 is located above the first crane 2. One end of the second guide chain is connected to the second crane 4, and the other end of the second guide chain is connected to the second hook 5. The second guide chain is wound around the second crane 4, and the cable located at the anti-torsion mechanism is moved through the second hook 5.

[0038] like Figure 2 , Figure 3 , Figure 5 As shown, after the worker passes the cable end through the anti-torsion mechanism, crane 4 is started, causing its output end to rotate. At this time, the guide chain 2 wound around crane 4 drives hook 5 downwards. When hook 5 reaches the height where the cable and anti-torsion mechanism are, the worker secures the cable end to hook 5. Crane 4 is started again, causing its output end to drive the guide chain 2, hook 5, and the cable secured to hook 5 upwards together. Once the cable end reaches the appropriate height, the worker removes the cable end. If there is a need to connect to other electronic components, the worker can then complete the connection.

[0039] A cable threading hole 24 is provided on the fixed platform 6, and the cable, hook 2 5 and chain guide 2 can all pass through the cable threading hole 24 smoothly and move upward without interference.

[0040] It should be noted that crane 24 is located above crane 12. Although crane 24 and crane 12 are both installed on fixed platform 6, they are not on the same fixed platform 6 because there are multiple fixed platforms 6.

[0041] The anti-torsion mechanism includes an anti-torsion platform 9, which is located below the crane 2. The anti-torsion platform 9 is fixedly connected to the fixed platform 6. Two symmetrically arranged guide cylinders 36 are provided on the anti-torsion platform 9. When laying the cable, the cable will pass through the two guide cylinders 36. The guide cylinders 36 are used to prevent the cable from twisting during the laying process.

[0042] like Figure 4 As shown, after hook 3 lifts the cable to the same height as or above guide cylinder 36, the height of hook 33 remains unchanged. The operator grasps the end of the cable and guides it through the two guide cylinders 36 in sequence, one near hook 3 and the other near hook 5. The inner walls of the guide cylinders 36 are smooth. The two guide cylinders 36 restrict the cable's movement, preventing twisting during lifting by hook 5. Furthermore, the smooth inner walls of the guide cylinders 36 reduce friction between the cable and the inner walls, resulting in smoother cable movement.

[0043] The anti-torsion mechanism also includes two symmetrically arranged corrugated plates 10, which are fixedly installed on the anti-torsion platform 9. The two corrugated plates 10 are slidably engaged with two ball joint rods 20, which are fixedly installed on the support frame 19. Extrusion plates 21 are fixedly installed on the side of the two support frames 19 that are close to each other. A central cylinder 22 is provided between the two extrusion plates 21. Both the support frame 19 and the central cylinder 22 are installed on the moving component.

[0044] The moving component includes a guide block 17, which is slidably engaged with the support frame 19. A return spring 18 is provided between the guide block 17 and the support frame 19. When the two support frames 19 slide on the guide block 17 in a direction that approaches or moves away from each other, the pressing plate 21 will press the central cylinder 22 or release the central cylinder 22.

[0045] The moving component also includes a sliding plate 13, which slides in conjunction with a rectangular groove 15 on the anti-torsion platform 9. A return spring 16 is provided between the sliding plate 13 and the rectangular groove 15. A rectangular groove 14 is provided on the sliding plate 13, which slides in conjunction with a boss 12. The boss 12 is fixedly mounted on a turntable 11, which is rotatably mounted on the anti-torsion platform 9. The turntable 11 is fixedly connected to the output shaft of the motor 8, which is fixedly mounted below the anti-torsion platform 9. The sliding plate 13 is fixedly connected to a guide block 17.

[0046] like Figure 4 , Figure 5 , Figure 6As shown, a central cylinder 22 is located between the two guide cylinders 36, and a circular hole is provided on the central cylinder 22, the central axis of which coincides with the central axis of the guide cylinder 36. When a cable is passed from one guide cylinder 36 to the other, the cable will pass through the circular hole on the central cylinder 22.

[0047] During the process of lifting the cable via hook 25, the motor 8, which is fixedly installed below the anti-torsion platform 9, is started, causing the output shaft of the motor 8 to drive the turntable 11 to rotate. At this time, the boss 12 fixedly installed on the turntable 11 will rotate. The boss 12 slides in contact with the rectangular groove 14 on the sliding plate 13. Therefore, during the rotation of the boss 12, the boss 12 will drive the sliding plate 13 to slide back and forth along the rectangular groove 15 on the anti-torsion platform 9. During this process, the return spring 16 will deform. The function of the return spring 16 is to assist the return of the sliding plate 13.

[0048] During the movement of the sliding plate 13, the guide block 17 installed on the sliding plate 13 moves together with the sliding plate 13, and the central cylinder 22 and support frame 19 on the guide block 17 also move. During the movement of the support frame 19, the ball head rod 20 on the support frame 19 slides along the corrugated plate 10. Since the side of the corrugated plate 10 that contacts the ball head rod 20 is wavy, i.e., it has crests and troughs, the movement of the ball head rod 20 will cause the support frame 19 to slide back and forth along the guide block 17, i.e., the two support frames 19 move back and forth towards and away from the central cylinder 22. During the process of the support frame 19 approaching the central cylinder 22, the extrusion plate 21 will contact the central cylinder 22. The central cylinder 22 is made of flexible material. By extruding and pressing the central cylinder 22, the central cylinder 22 can be fully contacted with the cable passing through the central hole of the central cylinder 22. At this time, the anti-corrosion agent adsorbed in the central cylinder 22 will be coated onto the outer surface of the cable, thereby improving the corrosion resistance of the cable.

[0049] It should be noted that the central cylinder 22 can be connected to external equipment containing corrosion inhibitors via pipelines to continuously supply corrosion inhibitors; of course, lubricants and other necessary materials can also be added as needed. Since some chemicals will inevitably flow down during the extrusion process of the extrusion plate 21 extruding the central cylinder 22, collection frames can be installed on both sides of the central cylinder 22 to collect the flowing chemicals.

[0050] The support mechanism includes a pole 23, which passes through multiple fixed platforms 6 and is fixedly connected to the interior of the tower 1. Two spaced sliders 29 are slidably mounted on the pole 23. One end of a drive arm 28 is rotatably mounted on the slider 29. The other end of the drive arm 28 is rotatably connected to a rotating arm 26. One end of the rotating arm 26 is rotatably connected to the pole 23, and the other end of the rotating arm 26 is rotatably connected to a roller 25. A torsion spring 27 is provided between the rotating arm 26 and the pole 23. The slider 29 is fixedly connected to a metal plate 30. A return spring 32 is provided between the metal plate 30 and the pole 23. An electromagnet 31 is provided below the metal plate 30 and is fixedly connected to the fixed platform 6.

[0051] like Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, during the process of lifting the cable by hook 25, in order to prevent the cable from contacting the inner wall and edge of the cable hole 24 and causing wear, the electromagnet 31 can be de-energized. At this time, the electromagnet 31 loses its attraction, that is, it loses its attraction to the metal plate 30. As a result, the metal plate 30 moves away from the electromagnet 31 under the elastic force of the return spring 32.

[0052] During the movement of the metal plate 30, the slider 29 fixedly connected to the metal plate 30 slides along the upright 23, thereby pushing the drive arm 28. The rotating arm 26 connected to the drive arm 28 is pushed by the drive arm 28, causing the rotating arm 26 to rotate on the upright 23. At this time, the roller 25 moves away from the upright 23 and contacts the surface of the cable passing through the cable hole 24, thus preventing the cable from contacting the inner surface or edge of the cable hole 24. The roller 25 and the rotating arm 26 rotate in coordination, so the cable will not experience resistance or will experience very little resistance during the lifting process.

[0053] The cable laying equipment also includes multiple linearly arranged fixing buckles 33, which are connected to the uprights 23 by bolts and are used to fix the cable to the uprights 23.

[0054] like Figure 9 As shown, multiple fixing buckles 33 are detachably installed on the upright 23 by bolts. After the cable is lifted to the specified height, the cable needs to be fixed. At this time, the cable is pushed from the roller 25 onto the upright 23, and then the cable is fixed to the upright 23 by the fixing buckles 33. Then, the fixing buckles 33 are fixed together with the upright 23 by bolts, thereby completing the fixing of the cable.

[0055] The cable laying equipment also includes an inner ladder 34 and an outer ladder 35. The inner ladder 34 is detachably installed inside the tower 1, and the outer ladder 35 is detachably installed outside the tower 1.

[0056] like Figure 1 , Figure 2 As shown, during cable laying, workers need to enter the tower 1 through the external ladder 35 on the outside of the tower 1, and then climb up or down through the internal ladder 34 inside the tower 1 to complete the cable laying. The through hole 7 provided on the fixed platform 6 allows workers to pass through.

[0057] The present invention has been illustrated with the above embodiments to illustrate its detailed features, but the present invention is not limited to the above detailed features, that is, it does not mean that the present invention must rely on the above detailed features to be implemented. Those skilled in the art should understand that any improvements to the present invention, equivalent substitutions for the selected technical features, additions of auxiliary technical features, and selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. An over-head type nacelle cable laying apparatus for wind power generation, characterized by, Cable laying equipment includes: The tower (1) has multiple fixed platforms (6) arranged in a linear pattern installed inside. The fixed platforms (6) are provided with through holes (7) that allow people to pass through and through holes (24) that allow cables to pass through. The tower (1) has an engine compartment (37) installed on top. The lifting mechanism includes a first lifting component and a second lifting component, which are installed inside the tower (1) and are used to lift and lay cables. An anti-torsion mechanism is installed inside the tower (1) to prevent the cable from twisting during the laying process. The support mechanism is installed inside the tower (1) and is used to support the cable to prevent the cable surface from being damaged during the laying process.

2. A top-mounted nacelle cable laying apparatus for wind power generation according to claim 1, characterized in that: The first lifting assembly includes a crane (2), which is fixedly installed on a fixed platform (6). One end of a guide chain is connected to the crane (2), and the other end of the guide chain is connected to a hook (3). The guide chain is wound around the crane (2), and the hook (3) moves one end of the cable to the location of the anti-torsion mechanism.

3. A top-mounted nacelle cable laying apparatus for wind power generation according to claim 2, characterized in that: The second lifting assembly includes a second crane (4), which is fixedly installed on a fixed platform (6). The second crane (4) is located above the first crane (2). One end of the second guide chain is connected to the second crane (4), and the other end of the second guide chain is connected to the second hook (5). The second guide chain is wound around the second crane (4) and the cable located at the anti-torsion mechanism is moved by the second hook (5).

4. The overhead nacelle cable routing apparatus for wind power generation of claim 2, wherein: The anti-torsion mechanism includes an anti-torsion platform (9), which is located below the crane (2). The anti-torsion platform (9) is fixedly connected to the fixed platform (6). The anti-torsion platform (9) is provided with two symmetrically arranged guide cylinders (36). When laying the cable, the cable will pass through the two guide cylinders (36). The guide cylinders (36) are used to prevent the cable from twisting during the laying process.

5. A top-mounted nacelle cable laying apparatus for wind power generation according to claim 4, characterized in that: The anti-torsion mechanism also includes two symmetrically arranged wave plates (10), which are fixedly installed on the anti-torsion platform (9). The two wave plates (10) are slidably engaged with two ball joint rods (20), which are fixedly installed on the support frame (19). The two support frames (19) are respectively fixedly installed on the side close to each other, and a central cylinder (22) is provided between the two extrusion plates (21). The support frame (19) and the central cylinder (22) are both installed on the moving component.

6. A top-mounted nacelle cable laying apparatus for wind power generation according to claim 5, characterized in that: The moving component includes a guide block (17), which is slidably engaged with the support frame (19), and a reset spring (18) is provided between the guide block (17) and the support frame (19). When the two support frames (19) slide on the guide block (17) in a direction that approaches or moves away from each other, the pressing plate (21) will press the central cylinder (22) or release the central cylinder (22).

7. A top-mounted nacelle cable laying apparatus for wind power generation according to claim 6, characterized in that: The moving component also includes a sliding plate (13), which is slidably engaged with a rectangular groove (15) on the anti-torsion platform (9), and a return spring (16) is provided between the sliding plate (13) and the rectangular groove (15). A rectangular groove (14) is provided on the sliding plate (13), and the rectangular groove (14) is slidably engaged with a boss (12). The boss (12) is fixedly mounted on a turntable (11), which is rotatably mounted on the anti-torsion platform (9). The turntable (11) is fixedly connected to the output shaft of a motor (8), which is fixedly mounted below the anti-torsion platform (9). The sliding plate (13) is fixedly connected to a guide block (17).

8. A top-mounted nacelle cable laying apparatus for wind power generation according to claim 1, characterized in that: The support mechanism includes a pole (23), which passes through multiple fixed platforms (6) and is fixedly connected to the interior of the tower (1). Two spaced sliders (29) are slidably mounted on the pole (23). One end of a drive arm (28) is rotatably mounted on the slider (29). The other end of the drive arm (28) is rotatably connected to a rotating arm (26). One end of the rotating arm (26) is rotatably connected to the pole (23), and the other end of the rotating arm (26) is rotatably connected to a roller (25). A torsion spring (27) is provided between the rotating arm (26) and the pole (23). The slider (29) is fixedly connected to a metal plate (30). A return spring (32) is provided between the metal plate (30) and the pole (23). An electromagnet (31) is provided below the metal plate (30). The electromagnet (31) is fixedly connected to the fixed platform (6).

9. A top-mounted nacelle cable laying apparatus for wind power generation according to claim 8, characterized in that: The cable laying equipment also includes a plurality of linearly arranged fixing buckles (33), which are connected to the uprights (23) by bolts and are used to fix the cable to the uprights (23).

10. The wind power generation top-mounted nacelle cable laying equipment as described in claim 1, characterized in that: The cable laying equipment also includes an inner ladder (34) and an outer ladder (35), wherein the inner ladder (34) is detachably installed inside the tower (1) and the outer ladder (35) is detachably installed outside the tower (1).

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