Cable protection device of wind generating set

Abstract

The invention relates to the technical field of wind generating set cable protection, in particular to a wind generating set cable protection device which comprises two arc-shaped protection covers, one sides of the two protection covers are hinged, the other sides of the two protection covers are each fixedly provided with a plurality of connecting blocks, and the connecting blocks are arranged at intervals in the height direction; a locking rod is arranged between the other sides of the two protection covers, the locking rod is sleeved with a locking ring in a threaded mode, and the connecting block is provided with a through hole for the locking rod to penetrate through. The cable protection device has the effect of improving the protection effect of the protection device on the cable.

Description

Technical Field

[0001] This application relates to the technical field of cable protection for wind turbines, and in particular to a cable protection device for wind turbines. Background Art

[0002] As an important part of renewable energy, wind power has developed rapidly in recent years. The stable operation of wind turbines is of great significance for improving energy utilization efficiency. As an important component inside wind turbines, cables undertake the key task of electric energy transmission. To ensure the safe operation of cables and avoid damage caused by the external environment or mechanical vibration, cable protection devices have emerged. Such devices can not only effectively reduce cable wear, but also improve the reliability and service life of the entire wind power system.

[0003] Currently, the commonly used cable protection devices in wind turbines mainly include two arc-shaped protective covers, one side of which is connected by a hinge, and the other side is fixed by ear plates and bolts. In practical applications, such devices achieve the basic protection function for cables by surrounding and clamping the cables.

[0004] However, the cable protection devices in the prior art have certain defects in actual use. For example, when the cable shakes, the ear plate may collide with the guardrail or other components inside the wind turbine, causing the protective cover to rotate and then rub against the cable, thereby affecting the protection effect of the protection device on the cable. Summary of the Invention In order to improve the protection effect of the protection device on the cable, this application provides a cable protection device for wind turbines.

[0005] A cable protection device for wind turbines provided by this application adopts the following technical solutions: A cable protection device for wind turbines includes two arc-shaped protective covers. One side of the two protective covers is hinged, and a plurality of connecting blocks are fixedly installed on the other side of the two protective covers. The plurality of connecting blocks are arranged at intervals in the height direction. A locking rod is arranged between the other sides of the two protective covers. A locking ring is sleeved on the locking rod in a threaded manner. The connecting block is provided with a through hole for the locking rod to pass through.

[0006] By adopting the above technical solutions, one side of the protective cover is hinged, and the other side is fixedly connected through the cooperation of the connecting block and the locking rod with the locking ring, which is beneficial to the smoothness of the outer wall of the protective cover and reduces the occurrence of the situation where the protective cover rotates after being impacted, thereby improving the protection effect of the protection device on the cable.

[0007] Optionally, a plurality of first air bags are fixedly installed on the inner wall of the protective cover. The first air bags are cylindrical and vertically arranged. The plurality of first air bags are arranged at intervals along the circumference of the protective cover. The protective cover is provided with an air charging and discharging mechanism for charging and discharging the first air bags.

[0008] By adopting the above technical solution, the arrangement of the first air bags can effectively buffer the shaking of the cable in the protective cover, reduce the direct impact between the cable and the inner wall of the protective cover, thereby reducing the risk of damage to the cable due to impact. The plurality of first air bags are arranged at intervals along the circumference of the protective cover, further improving the overall protection effect on the cable. In addition, the first air bags can be charged and discharged through the air charging and discharging mechanism, enabling the protection device to adjust the buffering force according to actual needs, adapt to cables of different diameters or quantities, and enhance the versatility and flexibility of the device.

[0009] Optionally, the air charging and discharging mechanism includes an air guide hose and a second air bag. The body of the air guide hose is fixedly connected to the bottom side of the protective cover. The body of the air guide hose is also connected to each of the first air bags. One end of the second air bag is fixedly connected to the body of the air guide hose.

[0010] By adopting the above technical solution, the air guide hose is fixedly connected to the bottom side of the protective cover and connected to each first air bag, and the second air bag is fixedly connected to the air guide hose, thereby realizing centralized control of the charging and discharging of the first air bags. This solution enables the first air bags to adjust the inflation volume according to actual needs, and then change the buffering and protection effect of the first air bags on the cable, improving the adaptability and protection performance of the cable.

[0011] Optionally, a winding rod is fixedly installed at one end of the second air bag away from the air guide hose. Installation rods are fixedly installed at both ends of the winding rod. Installation rings are fixedly installed at the ends of the installation rods away from the winding. A first connecting rod passes through between the two installation rings. Limit rings are threadedly sleeved at both ends of the first connecting rod. The second air bag is provided with a plurality of installation holes for the first connecting rod to slide through.

[0012] By adopting the above technical solution, the winding rod winds and unwinds the second air bag, thereby realizing the charging and discharging of the first air bags. After the installation rods pass through the installation holes and the installation rings, the limit rings are tightened, thereby reducing the situation where the air pressure inside the second air bag drives the winding rod to unwind.

[0013] Optionally, the protective cover is provided with a plurality of first heat dissipation holes.

[0014] By adopting the above technical solution, the plurality of first heat dissipation holes provided on the protective cover can effectively improve the heat dissipation performance around the cable, reduce the aging speed of the cable caused by heat accumulation, and thus extend the service life of the cable.

[0015] Optionally, a third airbag is fixedly installed on the side wall of the first airbag. The third airbag is fixedly inserted through the first heat dissipation hole. One end of the third airbag away from the first airbag exposes the first heat dissipation hole, and the part of the third airbag exposing the first heat dissipation hole is hemispherical.

[0016] By adopting the above technical solution, the third airbag is beneficial to improving the connection strength between the first airbag and the protective cover. At the same time, when the protective cover is impacted, the hemispherical part of the third airbag impacts first to play a buffering role.

[0017] Optionally, a support cylinder is arranged inside the protective cover. The cable is located between the outer wall of the support cylinder and the inner wall of the protective cover. A slot is opened on the top side of the protective cover. A second connecting rod is fixedly installed at the top end of the support cylinder, and the second connecting rod is bent and inserted into the slot.

[0018] By adopting the above technical solution, the arrangement of the support cylinder can effectively isolate the cable, thereby reducing the occurrence of cable aggregation and heat generation.

[0019] Optionally, a card slot is opened on the circumferential side of the support cylinder, and the card slot is used for the cable to enter.

[0020] By adopting the above technical solution, the card slot is clamped with the cable, thereby playing a role in restricting the rotation of the support cylinder.

[0021] Optionally, a heat dissipation plate is arranged inside the support cylinder. A plurality of elastic ropes are fixedly installed on the circumferential side of the heat dissipation plate, and one end of the elastic rope away from the heat dissipation plate is fixedly connected to the inner wall of the support cylinder.

[0022] By adopting the above technical solution, when the cable shakes, the heat dissipation plate will move inside the support cylinder. By moving the heat dissipation plate, the air flow rate inside the support cylinder is accelerated, and thus it is convenient for the cable to dissipate heat. The elastic ropes limit the heat dissipation plate, thereby reducing the occurrence of damage to the heat dissipation plate when it impacts the inner wall of the support cylinder.

[0023] Optionally, the support cylinder is provided with a plurality of second heat dissipation holes.

[0024] By adopting the above technical solution, arranging a plurality of second heat dissipation holes in the support cylinder can effectively improve the heat dissipation performance around the cable.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By arranging a plurality of connection blocks on the other side of the protective cover and the cooperation of the locking rod and the locking ring, the outer wall of the protective cover is kept flat, thereby reducing the occurrence of the protective cover rotating after being impacted, and further improving the protection performance for the cable; 2. The setting of the first airbag can provide flexible support for the cable. By adjusting the air inflation amount of the airbag through the air charging and discharging mechanism, it can adapt to cables with different diameters, further enhancing the applicability and buffering effect of the protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure from the first perspective of an embodiment of the present application; Figure 2 is an exploded view between the protective cover and the locking rod of an embodiment of the present application; Figure 3 is a schematic diagram of the overall structure from the second perspective of an embodiment of the present application; Figure 4 is Figure 1 an enlarged view at A; Figure 5 is a schematic diagram of the overall structure of the support cylinder of an embodiment of the present application.

[0027] Description of the reference numerals: 1, protective cover; 2, connecting block; 3, locking rod; 4, locking ring; 5, mounting hole; 6, through hole; 7, first airbag; 8, air charging and discharging mechanism; 81, air guide hose; 82, second airbag; 9, winding rod; 10, mounting rod; 11, mounting ring; 12, first connecting rod; 13, limiting ring; 14, first heat dissipation hole; 15, second heat dissipation hole; 16, third airbag; 17, support cylinder; 18, card slot; 19, slot; 20, second connecting rod; 21, heat dissipation plate; 22, elastic rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following Figures 1-5 further describes the present application in detail.

[0029] An embodiment of the present application discloses a cable protection device for a wind turbine generator.

[0030] Referring to Figure 1 , Figure 2 , a cable protection device for a wind turbine generator includes two arc-shaped protective covers 1, one side of the two protective covers 1 is hinged, and a plurality of connecting blocks 2 are fixedly installed on the other side of the two protective covers 1. The plurality of connecting blocks 2 are arranged at intervals in the height direction, a locking rod 3 is arranged between the other sides of the two protective covers 1, a locking ring 4 is sleeved on the locking rod 3 in a threaded manner, and a through hole 6 for the locking rod 3 to pass through is formed in the connecting block 2.

[0031] Two protective covers 1 surround each cable to be protected, and then the locking rod 3 passes through each through hole 6. After that, a locking ring 4 is screwed onto the locking rod 3 for limiting, so that the two protective covers 1 are closed. In another embodiment, the size of the protective cover 1 is separately set according to the number and diameter of the cables, so that the two protective covers 1 can clamp each cable, thereby reducing the occurrence of the protective cover 1 slipping along the height direction.

[0032] Referring to Figure 1 、 Figure 3 In the embodiment of the present application, a plurality of first airbags 7 are fixedly installed on the inner wall of the protective cover 1. The first airbags 7 are cylindrical and are arranged vertically. The plurality of first airbags 7 are arranged at intervals along the circumferential direction of the protective cover 1. The protective cover 1 is provided with an air charging and discharging mechanism 8. The air charging and discharging mechanism includes an air guide hose 81 and a second airbag 82. The body of the air guide hose 81 is fixedly connected to the bottom side of the protective cover 1, and the body of the air guide hose 81 is also connected to each first airbag 7. One end of the second airbag 82 is fixedly connected to the body of the air guide hose 81.

[0033] Squeeze the second airbag 82, and the gas inside the second airbag 82 enters the first airbag 7 through the air guide hose 81, so that the first airbag 7 expands and presses the cable tightly, thus facilitating the two protective covers 1 to clamp the cable. At the same time, through the design of the expansion of the first airbag 7, it is convenient to adapt to cables of different diameters or quantities for protection.

[0034] Referring to Figure 1 、 Figure 4 In another embodiment, after the first airbag 7 expands and presses the cable tightly, the second airbag 82 is tied up to keep the first airbag 7 expanded. In the present application, a winding rod 9 is fixedly installed at the end of the second airbag 82 away from the air guide hose 81. Installation rods 10 are fixedly installed at both ends of the winding rod 9. An installation ring 11 is fixedly installed at the end of the installation rod 10 away from the winding. A first connecting rod 12 is passed through between the two installation rings 11. Limiting rings 13 are threadedly sleeved at both ends of the first connecting rod 12. The second airbag 82 is provided with a plurality of installation holes 5 for the first connecting rod 12 to slide through.

[0035] After the winding rod 9 winds up the second airbag 82 to make the first airbag 7 expand and press the first airbag 7 tightly, the installation rod 10 is passed through the installation hole 5 and the installation ring 11, and then the limiting ring 13 is tightened, so as to keep the first airbag 7 expanded and reduce the occurrence of the winding rod 9 automatically unwinding the second airbag 82.

[0036] Referring to Figure 1 The protective cover 1 is provided with a plurality of first heat dissipation holes 14, and the heat generated by the cable is dissipated from the first heat dissipation holes 14, thus playing a role in protecting the cable.

[0037] The side wall of the first airbag 7 is fixedly installed with a third airbag 16. The third airbag 16 is fixedly inserted through the first heat dissipation hole 14. One end of the third airbag 16 away from the first airbag 7 exposes out of the first heat dissipation hole 14. The part of the third airbag 16 that exposes out of the first heat dissipation hole 14 is hemispherical.

[0038] The third airbag 16 is connected to the inner wall of the first heat dissipation hole 14, thereby improving the connection strength between the first airbag 7 and the protective cover 1. When the protective cover 1 is impacted, the hemispherical part of the third airbag 16 impacts first to play a buffering role. And the air inside the third airbag 16 enters the first airbag 7, thereby further pressing the cable by the first airbag 7, and further reducing the situation where the protective cover 1 rotates.

[0039] Refer to Figure 1 , a support cylinder 17 is arranged inside the protective cover 1, and a clamping groove 18 is formed on the circumferential side of the support cylinder 17. The cable is located between the outer wall of the support cylinder 17 and the inner wall of the protective cover 1. After the protective cover 1 clamps the cable, the cable is distributed on the circumferential side of the support cylinder 17, thereby facilitating the dispersion of the cable and reducing the situation where the cable aggregation affects heat dissipation. At the same time, the cable will enter the inside of the clamping groove 18 and is clamped with the cable through the clamping groove 18. The design of the clamping groove 18 is beneficial to further disperse the cable.

[0040] Refer to Figure 1 , a slot 19 is formed on the top side of the protective cover 1, and a second connecting rod 20 is fixedly installed at the top end of the support cylinder 17. The second connecting rod 20 is bent and inserted into the slot 19. The second connecting rod 20 is used to connect the protective cover 1 and the support cylinder 17, thereby reducing the situation where the support cylinder 17 falls.

[0041] Refer to Figure 5 , a plurality of second heat dissipation holes 15 are formed on the support cylinder 17. A heat dissipation plate 21 is arranged inside the support cylinder 17, and a plurality of elastic ropes 22 are fixedly installed on the circumferential side of the heat dissipation plate 21. One end of the elastic rope 22 away from the heat dissipation plate 21 is fixedly connected to the inner wall of the support cylinder 17. When the protective cover 1 is impacted, the heat dissipation plate 21 shakes to accelerate the air flow rate inside the support cylinder 17, and the heat inside the support cylinder 17 is discharged from the second heat dissipation holes 15, thereby facilitating heat dissipation.

[0042] The implementation principle of a cable protection device for a wind turbine generator set in an embodiment of the present application is as follows: After the locking rod 3 passes through the through hole 6, it is locked with the locking ring 4, which is beneficial to keep the outer wall of the protective cover 1 flat, and further reduces the situation where the protective cover 1 rotates when impacted, thereby improving the protection effect of the protection device on the cable. At the same time, in the present application, the expansion and contraction of the first airbag 7 play a buffering role, and it is also convenient for the protective cover 1 to adapt to cables with different diameters or quantities.

[0043] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A cable protection device for a wind turbine generator, characterized in that: The invention comprises two arc-shaped protective covers (1), one side of the two protective covers (1) is hinged, the other side of the two protective covers (1) is fixedly mounted with a plurality of connection blocks (2), the plurality of connection blocks (2) are arranged at intervals along the height direction, a locking rod (3) is arranged between the other sides of the two protective covers (1), a locking ring (4) is threadedly sleeved on the locking rod (3), and the connection block (2) is provided with a through hole (6) for the locking rod (3) to pass through.

2. The cable protection device for a wind turbine generator set according to claim 1, wherein: A plurality of first airbags (7) are fixedly mounted on the inner wall of the protective cover (1); the first airbags (7) are columnar and arranged vertically; the plurality of first airbags (7) are arranged at intervals along the circumference of the protective cover (1); and an inflation and deflation mechanism (8) is mounted on the protective cover (1); the inflation and deflation mechanism (8) is used to inflate and deflate the first airbags (7).

3. The cable protection device for a wind turbine generator set according to claim 2, characterized in that: The inflation and deflation mechanism (8) comprises an air guide hose (81) and a second air bag (82); the tube body of the air guide hose (81) is fixedly connected to the bottom side of the protective cover (1); the tube body of the air guide hose (81) is also connected to each of the first air bags (7); and one end of the second air bag (82) is fixedly connected to the tube body of the air guide hose (81).

4. The cable protection device for a wind turbine generator set according to claim 3, wherein: A reeling rod (9) is fixedly mounted on one end of the second airbag (82) away from the air guide hose (81), mounting rods (10) are fixedly mounted on both ends of the reeling rod (9), a mounting ring (11) is fixedly mounted on one end of the mounting rod (10) away from the reeling, a first connecting rod (12) is passed through between the two mounting rings (11), and limiting rings (13) are threadedly sleeved on both ends of the first connecting rod (12), and the second airbag (82) is provided with a plurality of mounting holes (5) for the first connecting rod (12) to slide through.

5. The cable protection device for a wind turbine generator set according to claim 2, characterized in that: The protective cover (1) is provided with a plurality of first heat dissipation holes (14).

6. The cable protection device for a wind turbine generator set according to claim 5, wherein: A third airbag (16) is fixedly mounted on the side wall of the first airbag (7); the third airbag (16) is fixedly penetrated through the first heat dissipation hole (14); an end of the third airbag (16) away from the first airbag (7) is exposed to the first heat dissipation hole (14); and the portion of the third airbag (16) exposed to the first heat dissipation hole (14) is hemispherical.

7. A cable protection device for a wind turbine generator set according to claim 1, characterized in that: A support tube (17) is arranged inside the protective cover (1), the cable is located between the outer wall of the support tube (17) and the inner wall of the protective cover (1), a slot (19) is provided on the top side of the protective cover (1), a second connecting rod (20) is fixedly mounted on the top end of the support tube (17), and the second connecting rod (20) is bent and inserted into the slot (19).

8. The cable protection device for a wind turbine generator set according to claim 7, wherein: A card slot (18) is provided on the circumferential side of the support tube (17), and the card slot (18) is used for allowing the cable to enter.

9. The cable protection device for a wind power generating set according to claim 7, characterized in that: A heat sink (21) is provided inside the support tube (17), a plurality of elastic ropes (22) are fixedly mounted on the circumference of the heat sink (21), and one end of the elastic rope (22) away from the heat sink (21) is fixedly connected to the inner wall of the support tube (17).

10. A cable protection device for a wind turbine generator set according to claim 7, characterized in that: The support tube (17) is provided with a plurality of second heat dissipation holes (15).

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