Wind turbine generator twisted cable protection device

Abstract

The utility model relates to the field of cable twisting protection devices, and discloses a wind turbine generator cable twisting protection device which comprises a hollow rod, a plurality of through grooves are formed in the outer walls of the upper side and the lower side of the hollow rod, a rotating rod is rotationally connected to the inner wall of the front end of the outer wall of the hollow rod, and a plurality of extrusion blocks are connected to the rear end of the rotating rod through adjusting assemblies. The opposite ends of the extrusion blocks are slidably connected to the upper end and the lower end of the inner wall of the hollow rod, a limiting ring is slidably connected to the middle of the top end of the fixing disc, a plurality of fixing blocks are fixedly connected to the outer edge of the top end of the fixing disc, and adjusting rods are slidably connected to the inner walls of the top ends of the fixing blocks. According to the cable twisting device, the through grooves used for fixing the cables can be adjusted, the cable twisting device can meet the requirements of the cables of various thicknesses, the practicability of the device is improved, the hollow rod can rotate and can separate the cables by a certain distance, and therefore abrasion between the cables can be relieved when the cable twisting phenomenon occurs, and the cables are not prone to breakage.

Description

Technical Field

[0001] This utility model relates to the field of cable torsion protection devices, and in particular to a cable torsion protection device for wind turbine generators. Background Technology

[0002] Cable twisting primarily occurs in wind turbine generators. When the generator consistently yaws in the same direction under certain external conditions, it can cause the nacelle cables to become entangled. This phenomenon is known as cable twisting. Cable twisting not only affects the normal operation of the wind turbine generator but can also damage the cables, thus impacting power transmission efficiency and potentially leading to safety hazards for the wind turbine generator.

[0003] Currently, protective devices for limiting yaw twisting of cables often use steel rings and cable sheaths to bind the cables together. When cable twisting occurs, the binding increases friction between the cables, which accelerates wear and leads to breakage, reducing service life.

[0004] In response to the technical problem that the cable is prone to wear and breakage when twisted, this application proposes a wind turbine cable twisting protection device. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a wind turbine cable twisting protection device. The hollow rod has an adjustable through groove to accommodate cables of various thicknesses, improving the practicality of the device. Furthermore, the hollow rod can not only rotate but also hold the cable a certain distance, thereby reducing the friction and torque between the cables when cable twisting occurs, slowing down cable wear and preventing breakage.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A wind turbine cable torsion protection device includes:

[0008] A hollow rod has several through slots on its upper and lower outer walls. A rotating rod is rotatably connected to the inner wall of the front end of the hollow rod. Several extrusion blocks are connected to the rear end of the rotating rod through an adjustment component. The extrusion blocks are slidably connected to the upper and lower ends of the inner wall of the hollow rod at opposite ends.

[0009] A fixed plate has a limiting ring slidably connected to the center of its top end. Several fixing blocks are fixedly connected to the outer edge of the top end of the fixed plate. Adjusting rods are slidably connected to the inner walls of the top ends of the fixing blocks. The bottom ends of the adjusting rods are connected to locking blocks via buckle assemblies. One inner end of each adjacent locking block is fixedly connected to the bottom of the outer wall of the limiting ring. The limiting ring is rotatably connected to the outer wall of a hollow rod, and the outer wall of the hollow rod is slidably connected to the inner wall of the fixed plate.

[0010] Furthermore, the adjusting assembly includes a first bevel gear fixedly connected to the rear end of the rotating rod, a second bevel gear meshing with the bottom end of the outer edge of the first bevel gear, and a bidirectional threaded screw fixedly connected to the inner wall of the second bevel gear, with the upper and lower ends of the bidirectional threaded screw rotatably connected to the upper and lower ends of the inner wall of the hollow rod, respectively.

[0011] Furthermore, the upper and lower sides of the outer wall of the bidirectional threaded screw are threaded with adjusting plates, and the inner walls of the left and right sides of the opposite end of the adjusting plates are rotatably connected with connecting plates. The opposite end of the extrusion block is rotatably connected to the opposite end of the connecting plate.

[0012] Furthermore, the buckle assembly includes a locking block that is fixedly connected to the bottom end of the adjusting rod, the outer wall of the locking block is slidably connected to the inner wall of the fixing block, and the outer wall of the locking block can be embedded into the inner wall of the fixing block.

[0013] Furthermore, each of the locking blocks has a spring fixedly connected to its opposite end, and the opposite ends of the springs are respectively fixedly connected to the inner walls of the left and right fixing blocks.

[0014] Furthermore, the top of the fixed block is rotatably connected to an adjusting turntable, the inner wall of the adjusting turntable is rotatably mounted on the top of the outer wall of the limiting ring, and several sliding grooves are opened on the outer edge of the bottom end of the adjusting turntable, and the top of the adjusting rod is embedded in the inner wall of the sliding groove.

[0015] Furthermore, a rotating handle is fixedly connected to the top of the rotating rod to facilitate better rotation of the bidirectional threaded screw.

[0016] Furthermore, bolts are provided on all four sides of the outer wall of the fixed plate to fix the entire device to the wind turbine.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, the hollow rod is designed with multiple adjustable through slots, which can adapt to cables of different thicknesses, thus improving the practicality of the device. In addition, the hollow rod can not only rotate, but also separate the cables by a certain distance. In this way, when the cable twists, the friction and torque between the cables can be reduced, thereby slowing down the wear of the cables and preventing them from breaking.

[0019] 2. In this utility model, the hollow rod for fixing the cable can be disengaged from the fixing plate under the action of the locking block, thereby moving it upward to expose the cable wrapped by the hollow rod, which facilitates the subsequent inspection and maintenance of the cable part blocked by the hollow rod and improves the maintenance efficiency. Attached Figure Description

[0020] Figure 1 This is a perspective view of a wind turbine cable torsion protection device proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the hollow rod structure of a wind turbine cable torsion protection device proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the adjusting turntable of a wind turbine cable torsion protection device proposed in this utility model.

[0023] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the fixing block structure of a wind turbine cable torsion protection device proposed in this utility model;

[0025] Figure 6 for Figure 5 Enlarged view of the structure at point B in the middle.

[0026] Legend:

[0027] 1. Fixed plate; 2. Bolt; 3. Hollow rod; 4. Through groove; 5. Rotary handle; 6. Limiting ring; 7. Fixed block; 8. Rotating rod; 9. Double-sided threaded screw; 10. Adjusting plate; 11. Connecting plate; 12. Pressing block; 13. Clamping block; 14. Locking block; 15. Adjusting rod; 16. Spring; 17. First bevel gear; 18. Second bevel gear; 19. Adjusting turntable; 20. Slide groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 and Figure 2One embodiment of the utility model provides a wind turbine cable twisting protection device, comprising a hollow rod 3, with several through slots 4 on the upper and lower outer walls of the hollow rod 3. A rotating rod 8 is rotatably connected to the inner wall of the front end of the hollow rod 3. Several pressing blocks 12 are provided at the rear end of the rotating rod 8, with each pressing block 12 slidably connected to the upper and lower ends of the inner wall of the hollow rod 3 at opposite ends. A first bevel gear 17 is fixedly connected to the rear end of the rotating rod 8. A second bevel gear 18 is meshed with the bottom edge of the first bevel gear 17. A bidirectional screw is fixedly connected to the inner wall of the second bevel gear 18. The threaded rod 9 and the bidirectional threaded rod 9 are rotatably connected at their upper and lower ends to the inner walls of the hollow rod 3. The upper and lower sides of the outer wall of the bidirectional threaded rod 9 are threaded with adjusting plates 10. The inner walls of the left and right sides of the opposite end of the adjusting plates 10 are rotatably connected with connecting plates 11. The opposite end of the pressing block 12 is rotatably connected to the opposite end of the connecting plate 11. The top of the rotating rod 8 is fixedly connected with a rotating handle 5 for better rotation of the bidirectional threaded rod 9. Bolts 2 are provided on all four sides of the outer wall of the fixed plate 1 for fixing the entire device to the wind turbine.

[0030] Specifically, after the cable passes through the through slot 4 on the hollow rod 3, the rotating handle 5 is turned, which drives the first bevel gear 17 connected to the rotating rod 8 to rotate. The first bevel gear 17 then drives the second bevel gear 18 to rotate. The rotation of the second bevel gear 18 will drive the bidirectional threaded screw 9 to rotate. The rotation of the bidirectional threaded screw 9 will cause the adjusting plate 10 to retract and drive the connecting plate 11 to move outward, thereby driving the pressing block 12 to move outward. The movement of the pressing block 12 will reduce the diameter of the through slot 4 on the hollow rod 3, thereby clamping and fixing the cable to the hollow rod 3. Then, all the components on the fixing plate 1 are fixed to the wind turbine unit by bolts 2.

[0031] Reference Figure 3 , Figure 5 and Figure 6 A fixed disk 1 has a limit ring 6 slidably connected to its top center. Several fixed blocks 7 are fixedly connected to the outer edge of the top of the fixed disk 1. Adjusting rods 15 are slidably connected to the inner walls of the tops of the fixed blocks 7. Each adjusting rod 15 has a locking block 13 at its bottom. One end of each adjacent locking block 13 is fixedly connected to the bottom of the outer wall of the limit ring 6. The limit ring 6 is rotatably connected to the outer wall of a hollow rod 3. The outer wall of the hollow rod 3 is slidably connected to the inner wall of the fixed disk 1. Locking blocks 14 are fixedly connected to the bottom of each adjusting rod 15. The outer wall of the locking block 14 is slidably connected to the inner wall of the fixing block 7. The outer wall of the locking block 13 can be embedded in the inner wall of the fixing block 7. The opposite ends of the locking block 14 are fixedly connected to the springs 16. The opposite ends of the springs 16 are fixedly connected to the inner walls of the left and right fixing blocks 7 respectively. The top of the fixing block 7 is rotatably connected to the adjusting turntable 19. The inner wall of the adjusting turntable 19 is rotatably installed on the top of the outer wall of the limiting ring 6. Several sliding grooves 20 are opened on the outer edge of the bottom end of the adjusting turntable 19. The top of the adjusting rod 15 is embedded in the inner wall of the sliding groove 20.

[0032] Specifically, when inspecting the cable blocked by the hollow rod 3, first rotate the adjusting dial 19, such as... Figure 4 The rotation of the adjustment turntable 19 will cause the first slide groove 20 to press the first adjustment rod 15, thereby causing the first adjustment rod 15 to move inward and compress the spring 16. When the first adjustment rod 15 moves to the outer edge of the first slide groove 20, the locking block 14 will retract completely into the fixing block 7, so that the fixing block 7 will lose its restriction on the locking block 13. When the first adjustment rod 15 moves to the end of the first slide groove 20, it will temporarily stop moving. At this time, the limiting ring 6 will be rotated. The rotation of the limiting ring 6 will disengage the locking block 13 from the fixing block 7. At this time, the hollow rod 3 will be lifted upward, thereby exposing the cable blocked by the hollow rod 3, which will facilitate its inspection and maintenance.

[0033] Working principle: The cable is passed through the slot 4 of the hollow rod 3, and then the rotating handle 5 is rotated. The rotating handle 5 expands the adjusting plate 10, thereby moving the squeezing block 12 outward. The outward movement of the squeezing block 12 continuously reduces the diameter of the slot 4 on the hollow rod 3, thus fixing the cable to the hollow rod 3. After fixing, the fixing plate 1 is fixed to the wind turbine with bolts 2, thereby restricting the movement of the cable. When inspecting the cable blocked by the hollow rod 3 after a period of use, first rotate the adjusting turntable 19. The rotation of the adjusting turntable 19 will drive the first sliding groove 20 to squeeze the first adjusting rod 15, thereby causing the first adjusting rod 15 to retract inward. At this time, the locking block 14 will retract inward, thereby freeing the locking block 13 from the fixing block 7. Rotate the limiting ring 6 to disengage the locking block 13 from the fixing block 7, and then lift the hollow rod 3 upward, thereby exposing the cable blocked by the hollow rod 3 into the line of sight, which facilitates the subsequent inspection and maintenance of the cable blocked by the hollow rod 3 and improves the maintenance efficiency.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wind turbine torsional cable protection device, characterized in that, Include: Hollow rod (3), the hollow rod (3) upper and lower sides of the outer wall are provided with a plurality of through slots (4), the outer wall of the hollow rod (3) is rotatably connected with a rotating rod (8), the rear end of the rotating rod (8) is connected with a plurality of extrusion blocks (12) through an adjusting assembly, and the opposite ends of the extrusion blocks (12) are respectively slidably connected to the inner walls of the upper and lower ends of the hollow rod (3); The fixed disc (1) is slidably connected with a limiting ring (6) at the top of the middle, a plurality of fixed blocks (7) are fixedly connected to the outer wall of the top of the fixed disc (1), the inner walls of the top ends of the fixed blocks (7) are slidably connected with adjusting rods (15), the bottom ends of the adjusting rods (15) are connected with clamping blocks (13) through buckle assemblies, and the inner sides of the opposite ends of the adjacent clamping blocks (13) are fixedly connected to the bottom of the outer wall of the limiting ring (6). The limiting ring (6) is rotatably connected to the outer wall of the hollow rod (3), and the outer wall of the hollow rod (3) is slidably connected to the inner wall of the fixed disc (1).

2. A wind turbine torsional cable protection device according to claim 1, characterised in that: The adjusting assembly comprises a first bevel gear (17) fixedly connected to the rear end of the rotating rod (8), the outer bottom of the first bevel gear (17) is meshedly connected with a second bevel gear (18), the inner wall of the second bevel gear (18) is fixedly connected with a bidirectional threaded lead screw (9), and the upper and lower ends of the bidirectional threaded lead screw (9) are rotatably connected to the inner walls of the upper and lower ends of the hollow rod (3).

3. A wind turbine torsional cable protection device according to claim 2, wherein: The outer walls of the bidirectional threaded lead screw (9) are threadedly connected with adjusting plates (10) on the upper and lower sides, the inner walls of the opposite ends of the adjusting plates (10) are rotatably connected with connecting plates (11), and the opposite ends of the extrusion blocks (12) are rotatably connected to the opposite ends of the connecting plates (11).

4. A wind turbine torsional cable protection device according to claim 1, wherein: The buckle assembly comprises a lock block (14) fixedly connected to the bottom end of the adjusting rod (15), the outer wall of the lock block (14) is slidably connected to the inner wall of the fixed block (7), and the outer walls of the clamping blocks (13) can be embedded in the inner wall of the fixed block (7).

5. A wind turbine torsional cable protection device according to claim 4, wherein: The opposite ends of the lock block (14) are fixedly connected with springs (16), and the opposite ends of the springs (16) are fixedly connected to the inner walls of the left and right fixed blocks (7).

6. A wind turbine twist cable protector according to claim 1, wherein: The top end of the fixed block (7) is rotatably connected with an adjusting turntable (19), the inner wall of the adjusting turntable (19) is rotatably installed on the top of the outer wall of the limiting ring (6), a plurality of sliding grooves (20) are formed in the outer wall of the bottom end of the adjusting turntable (19), and the top ends of the adjusting rods (15) are embedded in the inner walls of the sliding grooves (20).

7. A wind turbine twist cable protector according to claim 1, wherein: The top end of the rotating rod (8) is fixedly connected with a rotating handle (5), so as to better rotate the bidirectional threaded lead screw (9).

8. A wind turbine twist cable protector according to claim 1, wherein: The outer walls of the fixed disc (1) are provided with bolts (2) on four sides, so as to fix the whole device on the wind turbine.

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