A cable limiting device and method for twisted cable in wind turbine towers

Abstract

This invention discloses a cable limiting device and method for twisted cables in wind turbine towers, relating to the technical field of wind turbine components. It includes a support connecting rod connected to the tower and a synchronous adjustment component disposed on a limiting plate. By using the synchronous adjustment component, the invention allows a rotating disc to move a movable sleeve horizontally along an adjustment screw. When the movable sleeve moves towards the rotating disc, the first clamp moves towards the center of the pressure ring, thus reducing the distance between the first clamps. Similarly, when the movable sleeve moves towards the limiting plate, the first clamp moves away from the center of the pressure ring, thus moving the pressure ring away from the limiting plate, increasing the distance between adjacent first clamps. This allows for adjustment of the distance between the installed twisted cables according to different specifications, reducing contact friction between the twisted cables and providing greater operating space for cable installation.

Description

Technical Field

[0001] This invention relates to the field of wind turbine component technology, specifically a cable limiting device and method for twisting cables in wind turbine towers. Background Technology

[0002] Wind power generation converts wind energy into electrical energy. To maximize the extraction of wind energy, the wind turbine rotor needs to change with the direction of the wind, which is called nacelle yaw. To coordinate with the yaw of the wind turbine, a section of free-hanging cable, known as a twisted cable, is required inside the tower.

[0003] Currently, the twisted cables are connected to the limiting plates via cable clamps. However, since the position of the cable clamps is fixed, the distance between the twisted cables is also fixed. When installing and positioning the twisted cables, as the number of twisted cables passing through the limiting plates increases, the twisted cables will come into contact with each other. This will cause the twisted cables to squeeze each other when they shift. At the same time, as the number of twisted cables passing through the limiting plates increases, the operating space for the workers will also decrease, thus affecting the installation of the twisted cables. Summary of the Invention

[0004] The purpose of this invention is to provide a cable limiting device and method for twisting cables in wind turbine towers, in order to solve the problem.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cable limiting device for twisting cables in wind turbine towers, comprising a support rod connected to the tower;

[0006] A limiting plate is installed at one end of the support link;

[0007] A transverse bar, located on one side of a support link, is used to connect adjacent support links;

[0008] A transmission shaft is rotatably connected to one end of a limiting plate, and a straightening rod is rotatably connected to the end of the transmission shaft away from the limiting plate via a rotating shaft.

[0009] Synchronous adjustment component, set on the limit plate, is used to adjust the distance between twisted cables;

[0010] The first clamp is connected to the synchronous adjustment component. The first clamp is bolted to the second clamp. The twisted cable is connected and fixed by the first clamp and the second clamp.

[0011] A positioning locking element, installed on the horizontal bar, is used to position the adjusted twisted cable.

[0012] As a further embodiment of the present invention: the synchronous adjustment component includes a sleeve, a movable rod, a first inclined connecting rod, a positioning seat, a pressure ring, a movable sleeve block, an adjustment screw, a turntable, a second inclined connecting rod, and a first telescopic spring. The sleeve is installed on the top of the limiting connecting plate. The movable rod is located inside the sleeve and extends to the top of the sleeve. The first telescopic spring is installed at the bottom of the movable rod and connected to the bottom of the inner wall of the sleeve. The pressure ring is located at the top of the movable rod. The first inclined connecting rod is rotatably connected to the bottom of the pressure ring via a rotating shaft. The positioning seat is rotatably connected to the bottom end of the first inclined connecting rod via a rotating shaft. The first clamp is connected to the positioning seat via bolts. The adjustment screw is rotatably connected to one side of the limiting connecting plate via a rotating shaft and is located between two supporting connecting rods. The movable sleeve block is movably sleeved on the adjustment screw. The turntable is installed at the end of the adjustment screw away from the limiting connecting plate. The second inclined connecting rod is rotatably connected to the outer wall of the pressure ring and connected to the movable sleeve block.

[0013] As a further embodiment of the present invention: the bottom of the limiting connecting plate is also connected to a pressure ring through a sleeve and a movable rod, and the top and bottom of the movable sleeve block are rotatably connected to a second inclined connecting rod through a rotating shaft.

[0014] As a further aspect of the present invention: the number of positioning seats is set to multiple, and the multiple positioning seats are distributed at equal distances along the center of the pressure ring.

[0015] As a further embodiment of the present invention: the inner side of the movable sleeve is provided with a threaded hole that matches the adjusting screw, and the top of the limiting connecting plate is provided with a through hole with a diameter larger than the inner wall diameter of the pressure ring.

[0016] As a further embodiment of the present invention: the positioning locking component includes a rotary disc, a direct connecting sleeve, a first piston rod, a connecting pin, a first piston cylinder, a flow-blocking chamber, a guide pipe, a second piston cylinder, a second telescopic spring, a second piston rod, and a guide hole. The rotary disc is installed on the side of the turntable away from the adjusting screw. The connecting pin is installed on one side of the rotary disc. The direct connecting sleeve is sleeved on the outside of the connecting pin. The first piston cylinder is installed on one side of the transverse rod. The first piston rod is inserted into the inside of the first piston cylinder and extends to the outside of the first piston cylinder. One end of the first piston rod is connected to the outer wall of the direct connecting sleeve. The flow-blocking chamber is installed on the end of the first piston cylinder away from the direct connecting sleeve. The second piston cylinder is connected to the flow-blocking chamber through the guide pipe. The guide hole is opened on the top side of the flow-blocking chamber and penetrates through the flow-blocking chamber.

[0017] As a further embodiment of the present invention: the positioning locking component further includes a locking plate, a flow-blocking block, a plug-in block, a first locking hole, a second locking hole, a third telescopic spring, and a locking pin. The locking plate is installed at the bottom of the flow-blocking compartment, the flow-blocking block is slidably connected to the inner side of the flow-blocking compartment, the plug-in block is connected to the flow-blocking block and extends to the bottom of the flow-blocking compartment, the second locking hole and the first locking hole are both opened on the plug-in block, the second locking hole and the first locking hole are vertically arranged, the locking pin passes through the locking plate and is connected to the second locking hole, and the third telescopic spring is installed between the locking plate and the locking pin.

[0018] As a further embodiment of the present invention: the center of the indexing disk and the center of the connecting pin are misaligned, and the inner wall width of the direct connecting sleeve is equal to the diameter of the connecting pin.

[0019] As a further embodiment of the present invention: the diameter of the flow-blocking block is larger than the diameter of the flow-guiding hole, the diameters of the first locking hole and the second locking hole are equal, and one end of the locking pin is equal to the diameter of the second locking hole.

[0020] This invention also discloses a cable limiting method for twisted cables in wind turbine towers, which employs the aforementioned cable limiting device for twisted cables in wind turbine towers and includes the following steps:

[0021] S1: Place the limiting device inside the tower;

[0022] S2: By adjusting the overall position of the device, one end of both the support rod and the alignment rod is in contact with the cylinder wall;

[0023] S3: Connect the support rod to the cylinder wall with bolts, then rotate the transmission shaft and the positioning rod to rotate the positioning rod to a position parallel to the support rod;

[0024] S4: Use the synchronous adjustment component to adjust the distance between adjacent first clamps. After the adjustment is completed, use the positioning locking component to limit the first clamp.

[0025] S5: Then the twisted cable is passed through the limiting plate, and then the second clamp is connected to the first clamp by bolts, so that the first clamp and the second clamp can clamp and limit the twisted cable.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. By setting a synchronous adjustment component, the turntable is turned so that the movable sleeve block moves horizontally along the adjustment screw. When the movable sleeve block moves toward the turntable, the first clamp moves toward the center of the pressure ring, thus reducing the distance between the first clamps. Similarly, when the movable sleeve block moves toward the limiting plate, the first clamp moves away from the center of the pressure ring, thus moving the pressure ring away from the limiting plate, thereby increasing the distance between adjacent first clamps. This allows the distance between the twisted cables after installation to be adjusted according to different specifications, thereby reducing the contact friction between the twisted cables and providing a larger operating space for the installation of the twisted cables.

[0028] 2. By setting a positioning locking component, when the turntable rotates, the indexing disc drives the connecting pin to rotate. At this time, the direct connecting sleeve block drives the first piston rod to move horizontally. When the first piston rod moves away from the first piston cylinder, the aqueous solution inside the second piston cylinder will be drawn into the first piston cylinder under the action of the first piston rod. Similarly, when the direct connecting sleeve block moves towards the first piston cylinder, the aqueous solution inside the first piston cylinder enters the second piston cylinder. After the distance between the first clamps is adjusted, the locking pin is pulled to separate the locking pin from the first locking hole. Then, the insertion block is pushed to block the flow-blocking block against the guide hole. At the same time, the second locking hole is aligned with the locking pin again. Then, the indexing disc can be locked by inserting the locking pin into the second locking hole, thereby positioning the adjusted first clamp and improving the stability of the first clamp and the second clamp for cable torsion limit. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the synchronous adjustment component structure of the present invention;

[0031] Figure 3 This is a schematic diagram showing the connection between the pressure ring and the movable sleeve of the present invention;

[0032] Figure 4 This is a schematic diagram showing the connection between the sleeve and the movable rod of the present invention;

[0033] Figure 5 This is a schematic diagram showing the connection between the transverse rod and the indexing disk of the present invention;

[0034] Figure 6 This is a schematic diagram showing the connection between the indexing disk and the first piston cylinder of the present invention;

[0035] Figure 7 This is a schematic diagram showing the connection between the flow-blocking chamber and the locking plate of the present invention;

[0036] Figure 8This is a schematic diagram of the internal structure of the flow-blocking conduit of the present invention.

[0037] In the diagram: 1. Supporting link; 2. Lateral link; 3. Limiting plate; 4. Transmission shaft; 5. Alignment link; 6. Pressure ring; 7. Movable sleeve; 8. Adjustment screw; 9. Turntable; 10. Sleeve; 11. Movable rod; 12. First inclined link; 13. Positioning seat; 14. First clamp; 15. Second clamp; 16. Second inclined link; 17. Indexing disc; 18. First telescopic spring; 19. Direct connection sleeve; 20. First piston rod; 21. First piston cylinder; 22. Flow-blocking chamber; 23. Guide pipe; 24. Locking plate; 25. Second piston cylinder; 26. Second telescopic spring; 27. Second piston rod; 28. Connecting pin; 29. ​​Flow-blocking block; 30. Guide hole; 31. Insertion block; 32. First locking hole; 33. Second locking hole; 34. Third telescopic spring; 35. Locking pin. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" 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 communication 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. The following describes embodiments of the invention based on its overall structure.

[0040] Example 1

[0041] Please see Figures 1 to 8In this embodiment of the invention, a cable limiting device for twisting cables in a wind turbine tower includes a support rod 1 connected to the tower.

[0042] Limiting plate 3 is installed at one end of support rod 1;

[0043] A transverse rod 2 is provided on one side of the support link 1 and is used to connect adjacent support links 1.

[0044] The transmission shaft 4 is rotatably connected to one end of the limiting plate 3, and the end of the transmission shaft 4 away from the limiting plate 3 is rotatably connected to the alignment rod 5 via a rotating shaft.

[0045] A synchronous adjustment component, mounted on the limiting connecting plate 3, is used to adjust the distance between the twisted cables;

[0046] The first clamp 14 is connected to the synchronous adjustment component. The first clamp 14 is connected to the second clamp 15 by bolts. The twisted cable is connected and fixed by the first clamp 14 and the second clamp 15.

[0047] A positioning locking element is installed on the horizontal rod 2 to position the adjusted twisted cable.

[0048] In this embodiment: the limiting device is placed inside the tower. Then, the position of the device is adjusted so that one end of the support rod 1 and the straightening rod 5 are in contact with the tower wall. Then, the support rod 1 is connected to the tower wall with bolts. Then, the transmission shaft 4 and the straightening rod 5 are rotated to rotate the straightening rod 5 to a position parallel to the support rod 1. Then, the distance between adjacent first clamps 14 is adjusted by operating the synchronous adjustment component. After the adjustment is completed, the first clamp 14 is limited by operating the positioning locking component. Then, the twisted cable is passed through the limiting plate 3. Then, the second clamp 15 is connected to the first clamp 14 with bolts, so that the first clamp 14 and the second clamp 15 clamp and limit the twisted cable.

[0049] Example 2

[0050] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 , Figure 4The synchronous adjustment component includes a sleeve 10, a movable rod 11, a first inclined connecting rod 12, a positioning seat 13, a pressure ring 6, a movable sleeve block 7, an adjustment screw 8, a turntable 9, a second inclined connecting rod 16, and a first telescopic spring 18. The sleeve 10 is installed on the top of the limiting connecting plate 3. The movable rod 11 is located inside the sleeve 10 and extends to the top of the sleeve 10. The first telescopic spring 18 is installed at the bottom of the movable rod 11 and connected to the bottom of the inner wall of the sleeve 10. The pressure ring 6 is located at the top of the movable rod 11. The first inclined connecting rod 16... Rod 12 is rotatably connected to the bottom of pressure ring 6 via a rotating shaft. Positioning seat 13 is rotatably connected to the bottom end of first inclined connecting rod 12 via a rotating shaft. First clamp 14 is connected to positioning seat 13 via bolts. Adjusting screw 8 is rotatably connected to one side of limiting connecting plate 3 via a rotating shaft and is located between two supporting connecting rods 1. Movable sleeve 7 is movably sleeved on adjusting screw 8. Turntable 9 is installed on the end of adjusting screw 8 away from limiting connecting plate 3. Second inclined connecting rod 16 is rotatably connected to the outer wall of pressure ring 6 and connected to movable sleeve 7.

[0051] The bottom of the limiting plate 3 is also connected to the pressure ring 6 through the sleeve 10 and the movable rod 11. The top and bottom of the movable sleeve block 7 are rotatably connected to the second inclined connecting rod 16 through the rotating shaft. By setting this structure, when the movable sleeve block 7 moves along the adjusting screw 8, the pressure rings 6 at the top and bottom of the limiting plate 3 move in different directions, thereby squeezing the positioning seat 13.

[0052] The number of positioning seats 13 is set to multiple, and the multiple positioning seats 13 are evenly distributed along the center of the pressure ring 6;

[0053] The inner side of the movable sleeve 7 is provided with a threaded hole that matches the adjusting screw 8, and the top of the limiting connecting plate 3 is provided with a through hole with a diameter larger than the inner wall diameter of the pressure ring 6.

[0054] In this embodiment: First, the turntable 9 is turned so that the movable sleeve 7 moves horizontally along the adjusting screw 8. When the movable sleeve 7 moves toward the turntable 9, the second inclined connecting rod 16 is pulled at one end, causing the second inclined connecting rod 16 to swing relative to the pressure ring 6. At the same time, the pressure ring 6 moves toward the limiting connecting plate 3, so that the first clamp 14 moves toward the center of the pressure ring 6, thus reducing the distance between the first clamps 14. Similarly, when the movable sleeve 7 moves toward the limiting connecting plate 3, the first clamp 14 moves away from the center of the pressure ring 6, so that the pressure ring 6 moves away from the limiting connecting plate 3, thereby increasing the distance between adjacent first clamps 14. In this way, the distance between the twisted cables after installation can be adjusted according to different specifications, thereby reducing the contact friction between the twisted cables and providing a larger operating space for the installation of the twisted cables.

[0055] Example 3

[0056] Please refer to this carefully. Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 The positioning and locking components also include a locking plate 24, a flow-blocking block 29, a plug-in block 31, a first locking hole 32, a second locking hole 33, a third telescopic spring 34, and a locking pin 35. The locking plate 24 is installed at the bottom of the flow-blocking compartment 22. The flow-blocking block 29 is slidably connected to the inner side of the flow-blocking compartment 22. The plug-in block 31 is connected to the flow-blocking block 29 and extends to the bottom of the flow-blocking compartment 22. The second locking hole 33 and the first locking hole 32 are both opened on the plug-in block 31. The second locking hole 33 and the first locking hole 32 are arranged vertically. The locking pin 35 passes through the locking plate 24 and is connected to the second locking hole 33. The third telescopic spring 34 is installed between the locking plate 24 and the locking pin 35.

[0057] The center of the indexing disk 17 is misaligned with the center of the connecting pin 28. The inner wall width of the direct connecting sleeve 19 is equal to the diameter of the connecting pin 28. This structure is designed so that when the indexing disk 17 rotates, the connecting pin 28 drives the direct connecting sleeve 19 to move stably.

[0058] The diameter of the flow-blocking block 29 is larger than the diameter of the flow-guiding hole 30. The diameters of the first locking hole 32 and the second locking hole 33 are equal. One end of the locking pin 35 is equal to the diameter of the second locking hole 33.

[0059] In this embodiment: Pulling the locking pin 35 separates one end of the locking pin 35 from the second locking hole 33. Then, pulling down the insertion block 31 causes the flow-blocking block 29 to misalign with the flow guide hole 30, while the first locking hole 32 aligns with the locking pin 35. At this point, releasing the locking pin 35 allows it to be inserted into the first locking hole 32 under the elastic restoring force of the third telescopic spring 34, thus connecting the first piston cylinder 21 and the second piston cylinder 25. When the turntable 9 rotates, the indexing disc 17 drives the connecting pin 28 to rotate. At this time, the direct connecting sleeve 19 drives the first piston rod 20 to move horizontally. When the first piston rod 20 moves away from the first piston cylinder 21, the water solution inside the second piston cylinder 25... The liquid will be drawn into the first piston cylinder 21 under the action of the first piston rod 20. Similarly, when the direct connecting sleeve 19 moves towards the first piston cylinder 21, the aqueous solution inside the first piston cylinder 21 enters the second piston cylinder 25. After the distance between the first clamps 14 is adjusted, the locking pin 35 is pulled to separate the locking pin 35 from the first locking hole 32. Then, the plug block 31 is pushed to block the flow blocking block 29 to block the flow guide hole 30. At the same time, the second locking hole 33 is aligned with the locking pin 35 again. Then, the locking pin 35 can be inserted into the second locking hole 33 to lock the indexing disk 17, thereby positioning the adjusted first clamp 14 and improving the stability of the first clamp 14 and the second clamp 15 for cable torsion limiting.

[0060] The following describes a method for limiting the cable tension of a wind turbine tower cable, based on the aforementioned cable limiting device for cable twisting. The method includes the following steps:

[0061] S1: Place the limiting device inside the tower;

[0062] S2: By adjusting the overall position of the equipment, one end of both the support rod 1 and the alignment rod 5 is in contact with the cylinder wall;

[0063] S3: Connect the support rod 1 to the cylinder wall with bolts, then rotate the transmission shaft 4 and the positioning rod 5 to rotate the positioning rod 5 to a position parallel to the support rod 1;

[0064] S4: Turning the turntable 9 causes the movable sleeve 7 to move horizontally along the adjusting screw 8. When the movable sleeve 7 moves towards the turntable 9, pulling one end of the second inclined connecting rod 16 causes it to swing relative to the pressure ring 6. Simultaneously, the pressure ring 6 moves towards the limiting connecting plate 3, thus moving the first clamp 14 towards the center of the pressure ring 6, reducing the distance between the first clamps 14. Similarly, when the movable sleeve 7 moves towards the limiting connecting plate 3, the first clamp 14 moves away from the center of the pressure ring 6, increasing the distance between adjacent first clamps 14. This allows adjustment of the distance between the installed twisted cables according to different specifications, reducing contact friction between the twisted cables and providing more operating space for installation. When the turntable 9 rotates, the indexing disc 17 drives the connecting... When pin 28 rotates, the direct connecting sleeve 19 drives the first piston rod 20 to move horizontally. When the first piston rod 20 moves away from the first piston cylinder 21, the aqueous solution inside the second piston cylinder 25 will be drawn into the first piston cylinder 21 under the action of the first piston rod 20. Similarly, when the direct connecting sleeve 19 moves towards the first piston cylinder 21, the aqueous solution inside the first piston cylinder 21 enters the second piston cylinder 25. After the distance between the first clamps 14 is adjusted, the locking pin 35 is pulled to separate the locking pin 35 from the first locking hole 32. Then, the insertion block 31 is pushed to block the flow blocking block 29 to block the flow guide hole 30. At the same time, the second locking hole 33 is aligned with the locking pin 35 again. Then, the locking pin 35 can be inserted into the second locking hole 33 to lock the indexing disk 17, thereby positioning the adjusted first clamp 14 and improving the stability of the first clamp 14 and the second clamp 15 for cable torsion limit.

[0065] S5: Then the twisted cable is passed through the limiting plate 3, and then the second clamp 15 is connected to the first clamp 14 by bolts, so that the first clamp 14 and the second clamp 15 clamp and limit the twisted cable.

[0066] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cable limiting device for twisting cables in wind turbine towers, characterized in that, Including the support links connected to the tower; A limiting plate is installed at one end of the support link; A transverse bar, located on one side of a support link, is used to connect adjacent support links; A transmission shaft is rotatably connected to one end of a limiting plate, and a straightening rod is rotatably connected to the end of the transmission shaft away from the limiting plate via a rotating shaft. Synchronous adjustment component, set on the limit plate, is used to adjust the distance between twisted cables; The first clamp is connected to the synchronous adjustment component. The first clamp is bolted to the second clamp. The twisted cable is connected and fixed by the first clamp and the second clamp. A positioning lock, mounted on the horizontal bar, is used to position the adjusted twisted cable. The synchronous adjustment component includes a sleeve, a movable rod, a first inclined connecting rod, a positioning seat, a pressure ring, a movable block, an adjustment screw, a turntable, a second inclined connecting rod, and a first telescopic spring. The sleeve is installed on the top of the limiting connecting plate. The movable rod is located inside the sleeve and extends to the top of the sleeve. The first telescopic spring is installed at the bottom of the movable rod and connected to the bottom of the inner wall of the sleeve. The pressure ring is located at the top of the movable rod. The first inclined connecting rod is rotatably connected to the bottom of the pressure ring via a rotating shaft. The positioning seat is rotatably connected to the bottom end of the first inclined connecting rod via a rotating shaft. The first clamp is connected to the positioning seat via bolts. The adjustment screw is rotatably connected to one side of the limiting connecting plate via a rotating shaft and is located between two supporting connecting rods. The movable block is movably sleeved on the adjustment screw. The turntable is installed at the end of the adjustment screw away from the limiting connecting plate. The second inclined connecting rod is rotatably connected to the outer wall of the pressure ring and connected to the movable block.

2. The cable limiting device for twisting cables in a wind turbine tower according to claim 1, characterized in that, The bottom of the limiting plate is also connected to a pressure ring via a sleeve and a movable rod, and the top and bottom of the movable sleeve are rotatably connected to a second inclined connecting rod via a rotating shaft.

3. The cable limiting device for twisting cables in a wind turbine tower according to claim 1, characterized in that, The number of positioning seats is set to multiple, and the multiple positioning seats are distributed at equal distances along the center of the pressure ring.

4. A cable limiting device for twisting cables in a wind turbine tower according to claim 1, characterized in that, The inner side of the movable sleeve is provided with a threaded hole that matches the adjusting screw, and the top of the limiting connecting plate is provided with a through hole with a diameter larger than the inner wall diameter of the pressure ring.

5. A cable limiting device for twisting cables in a wind turbine tower according to claim 1, characterized in that, The positioning locking component includes a rotary disc, a direct connecting sleeve, a first piston rod, a connecting pin, a first piston cylinder, a flow-blocking chamber, a guide pipe, a second piston cylinder, a second telescopic spring, a second piston rod, and a guide hole. The rotary disc is installed on the side of the turntable away from the adjusting screw. The connecting pin is installed on one side of the rotary disc. The direct connecting sleeve is sleeved on the outside of the connecting pin. The first piston cylinder is installed on one side of the transverse rod. The first piston rod is inserted into the inside of the first piston cylinder and extends to the outside of the first piston cylinder. One end of the first piston rod is connected to the outer wall of the direct connecting sleeve. The flow-blocking chamber is installed on the end of the first piston cylinder away from the direct connecting sleeve. The second piston cylinder is connected to the flow-blocking chamber through the guide pipe. The guide hole is opened on the top side of the flow-blocking chamber and penetrates through the flow-blocking chamber.

6. A cable limiting device for twisting cables in a wind turbine tower according to claim 5, characterized in that, The positioning and locking component further includes a locking plate, a flow-blocking block, a plug-in block, a first locking hole, a second locking hole, a third telescopic spring, and a locking pin. The locking plate is installed at the bottom of the flow-blocking compartment, the flow-blocking block is slidably connected to the inner side of the flow-blocking compartment, the plug-in block is connected to the flow-blocking block and extends to the bottom of the flow-blocking compartment, the second locking hole and the first locking hole are both opened on the plug-in block, the second locking hole and the first locking hole are vertically arranged, the locking pin passes through the locking plate and is connected to the second locking hole, and the third telescopic spring is installed between the locking plate and the locking pin.

7. A cable limiting device for twisting cables in a wind turbine tower according to claim 6, characterized in that, The center of the indexing disk is misaligned with the center of the connecting pin, and the inner wall width of the direct connecting sleeve is equal to the diameter of the connecting pin.

8. A cable limiting device for twisting cables in a wind turbine tower according to claim 6, characterized in that, The diameter of the flow-blocking block is larger than the diameter of the flow-guiding hole, the diameters of the first locking hole and the second locking hole are equal, and one end of the locking pin is equal to the diameter of the second locking hole.

9. A cable limiting method for twisted cables in wind turbine towers, characterized in that, The cable limiting device for twisting cables in a wind turbine tower according to any one of claims 1-8 includes the following steps: S1: Place the limiting device inside the tower; S2: By adjusting the overall position of the device, one end of both the support rod and the alignment rod is in contact with the cylinder wall; S3: Connect the support rod to the cylinder wall with bolts, then rotate the transmission shaft and the positioning rod to rotate the positioning rod to a position parallel to the support rod; S4: Operate the synchronous adjustment component to adjust the distance between adjacent first clamps. After the adjustment is completed, operate the positioning locking component to limit the first clamp. S5: Then the twisted cable is passed through the limiting plate, and then the second clamp is connected to the first clamp by bolts, so that the first clamp and the second clamp can clamp and limit the twisted cable.

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