A wind turbine generator cable protection device

Abstract

The utility model relates to cable protection technical field, concretely is a wind generating set cable protection device for solving the problem of suspension cable slippage and vibration collision damage. Including symmetrical limiting board, its edge is equipped with multiple specification open through -hole, built -in open rubber pad is pressed to shrink and hold tightly cable, limiting board center through -hole penetrates long connecting screw rod, forms rigid support through end portion nut, limiting board is embedded between a pair of arc blocks, arc block is fixed through assembled screw rod and limiting board screw hole, end portion clamping plate is closed into ring through combined screw rod nut, the arc block is installed with the arc plate of taking the vent hole and helping heat dissipation between, its outside is equipped with the two limiting arc plates of rubber strip covering, and the clearance fit constitutes the buffer layer between the two, limiting arc plate end portion is locked through mounting block and screw rod nut, unilateral connecting frame extension fixed plate is fixed by wall surface bolt anchor position, the device is through self -adaptation antiskid, elastic energy -absorbing buffer and modular structure, promotes cable anti -displacement and anti -impact ability.

Description

Technical Field

[0001] This utility model relates to the field of cable protection technology, specifically a cable protection device for wind turbine generator sets. Background Technology

[0002] A wind turbine cable protection device is a mechanical structure installed inside the wind power generation equipment or along the cable path to constrain, support, and protect the power cables connecting critical equipment such as generators and transformers. This type of device prevents the cables from being excessively bent, worn, squeezed, or accidentally mechanically damaged during continuous vibration of the wind turbine, equipment movement, changes in ambient temperature, or maintenance operations, thereby ensuring the reliability of power transmission and the long-term safe operation of the equipment.

[0003] However, in traditional protective devices, clamping anti-slip structures rely on bolt tightening force, which is cumbersome to adjust and maintain, and long-term use can easily lead to cable slippage due to vibration. At the same time, cable swing protection devices are mostly nested in rigid shells, and when there is a violent collision, the impact energy is transmitted to the cable through the metal structure, which aggravates the mechanical damage to the insulation layer. Utility Model Content

[0004] The purpose of this utility model is to provide a cable protection device for wind turbine generator sets to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A wind turbine generator cable protection device includes two symmetrically arranged limiting plates. The edges of the limiting plates are provided with several open through holes of different sizes. Open rubber pads are fixedly installed in the through holes. The limiting plates extend from the center point to both sides and are provided with through holes. Long connecting screws pass through the through holes. Connecting nuts are threaded onto both ends of the long connecting screws to form a stable support between the limiting plates. The limiting plates are provided with four assembly screw holes symmetrically arranged on the radial outer side.

[0007] Preferably, the limiting plate is embedded between two sets of arc-shaped blocks, each set of arc-shaped blocks consists of two blocks, and assembly holes are symmetrically opened on the outer side of each arc-shaped block.

[0008] Preferably, each assembly hole has an assembly screw penetrating through it, and the end of the assembly screw is threaded into the assembly screw hole to form a fastening structure for the limiting plate.

[0009] Preferably, clamping plates are fixedly installed at both ends of the arc-shaped block, the clamping plates are fitted together and each has a combination hole, a combination screw is inserted through the combination hole, and a combination nut is threaded onto the end of each combination screw.

[0010] Preferably, an arc plate is fixedly installed between the arc blocks, and each arc plate has a ventilation hole. The arc plate is located inside the two limiting arc plates and is separated by a certain gap. The inner side of each limiting arc plate is covered with a rubber strip.

[0011] Preferably, mounting blocks are fixedly installed at both ends of the limiting arc plate, the mounting blocks are fitted together and each has a mounting hole, a mounting screw passes through the mounting hole, and a mounting nut is threaded onto the end of each mounting screw.

[0012] Preferably, a connecting frame is fixedly installed on the outer side of one of the limiting arc plates, and a fixing plate is fixedly installed on the end of the connecting frame opposite to the limiting arc plate. The fixing plate has a fixing hole, and a bolt passes through the fixing hole to form a fixing structure with the supporting surface.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This wind turbine generator cable protection device uses an open rubber pad with a self-shrinking clamping design when the arc-shaped block is pressed to prevent the device from sliding along the cable under suspended conditions, achieving reliable anti-detachment without the need for traditional bolt clamping structures.

[0015] This wind turbine generator cable protection device uses a limit arc plate with rubber strips and an arc plate with gap fit. When there is a collision, the rubber strips absorb energy first and block the impact transmission path, thus solving the problem of indirect damage to cables caused by traditional rigid protection structures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the limiting arc plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the arc-shaped block of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the limiting plate of this utility model.

[0020] In the diagram: 101, limiting plate; 102, through hole; 103, rubber pad; 104, through hole; 105, long connecting screw; 106, connecting nut; 107, assembly screw hole; 108, arc-shaped block; 109, assembly hole; 110, assembly screw; 111, clamping plate; 112, combination hole; 113, combination screw; 114, combination nut; 115, arc-shaped plate; 116, vent hole; 117, limiting arc plate; 118, mounting block; 119, mounting hole; 120, mounting screw; 121, mounting nut; 122, connecting bracket; 123, fixing plate; 124, fixing hole; 125, rubber strip. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0023] A wind turbine generator cable protection device includes two symmetrically arranged limiting plates 101. The edges of the limiting plates 101 are provided with several open through holes 102 of different sizes. Open rubber pads 103 are fixedly installed in the through holes 102. The limiting plates 101 extend to both sides from the center point and are provided with through holes 104. Long connecting screws 105 pass through the through holes 104. Connecting nuts 106 are threaded onto both ends of the long connecting screws 105 to form stable support between the limiting plates 101. The limiting plates 101 are provided with four symmetrically arranged assembly screw holes 107 on the radially outer side.

[0024] The above scheme utilizes several through holes of different sizes on the edges of two symmetrically arranged limiting plates to accommodate suspension cables of different diameters. Open rubber pads fixed within these through holes generate an adaptive radial clamping force under pressure, preventing the device from sliding down the cable. A tensioning structure formed by a long connecting screw penetrating the central through-hole of the limiting plate and nuts at both ends maintains the rigid support relationship between the two limiting plates. Four symmetrical assembly screw holes on the radially outer side of the limiting plates provide a connection basis for assembling the external structure.

[0025] In this embodiment, preferably, the limiting plate 101 is embedded between two sets of arc-shaped blocks 108, each set of arc-shaped blocks 108 consists of two blocks, and assembly holes 109 are symmetrically opened on the outer side of each arc-shaped block 108.

[0026] The above scheme embeds the limiting plate between two sets of arc-shaped blocks, so that each pair of arc-shaped blocks forms a semi-enclosed slot, which can constrain the circumferential displacement of the limiting plate; the symmetrical design of each set of two arc-shaped blocks is conducive to forming uniform force; the symmetrical assembly holes opened on the outer side of the arc-shaped blocks are used to insert screws to achieve detachable connection with the limiting plate.

[0027] In this embodiment, preferably, assembly screws 110 are respectively passed through the assembly holes 109, and the ends of the assembly screws 110 are threaded into the assembly screw holes 107 to form a fastening structure for the limiting plate 101.

[0028] The above solution allows the arc-shaped block and the limiting plate to be pressed together to form a whole by screwing the assembly screw through the assembly hole into the assembly screw hole of the limiting plate; this threaded fastening structure enhances the structural stability of the protection system.

[0029] In this embodiment, preferably, clamping plates 111 are fixedly installed at both ends of the arc-shaped block 108. The clamping plates 111 are fitted together and are respectively provided with combination holes 112. Combination screws 113 pass through the combination holes 112 respectively, and combination nuts 114 are respectively installed at the ends of the combination screws 113 by threads.

[0030] The above solution allows for the connection of adjacent arc blocks by fixing clamps at both ends of the arc block and aligning the clamps. After inserting the combination screw through the combination hole on the clamp, the combination nut can be tightened to splice multiple arc blocks end to end into a closed ring frame.

[0031] In this embodiment, preferably, arc plates 115 are fixedly installed between the arc blocks 108 respectively, and ventilation holes 116 are opened on the arc plates 115 respectively. The arc plates 115 are located inside the two limiting arc plates 117 and are separated by a certain gap. The inner side of the limiting arc plates 117 is covered with rubber strips 125 respectively.

[0032] The above solution forms a primary protective layer for the internal cables by fixing an arc-shaped plate with ventilation holes between the arc-shaped blocks; the ventilation holes promote airflow exchange to improve heat dissipation; by placing the arc-shaped plate inside the two limiting arc-shaped plates and leaving a gap, a collision buffer space is formed; the rubber strip covering the inner side of the limiting arc-shaped plates can absorb impact energy during collision and prevent direct contact between the metal structures.

[0033] In this embodiment, preferably, mounting blocks 118 are fixedly installed at both ends of the limiting arc plate 117. The mounting blocks 118 are fitted together and each has a mounting hole 119. Mounting screws 120 pass through the mounting holes 119 respectively, and mounting nuts 121 are threaded onto the ends of the mounting screws 120 respectively.

[0034] The above solution allows for the connection of the ends of the limiting arc plate by fixing mounting blocks at both ends and aligning the mounting blocks. After inserting mounting screws into the mounting holes of the mounting blocks and tightening the mounting nuts, the limiting arc plate can be closed into a complete protective cover.

[0035] In this embodiment, preferably, a connecting frame 122 is fixedly installed on the outer side of one of the limiting arc plates 117, and a fixing plate 123 is fixedly installed on the opposite end of the connecting frame 122 and the limiting arc plate 117. A fixing hole 124 is provided on the fixing plate 123, and a fixing structure with the support surface is formed by bolts passing through the fixing hole 124.

[0036] The above solution extends the device's fixing point by fixing a connecting frame to the outside of a limiting arc plate; the fixing holes on the fixing plate at the end of the connecting frame can be anchored to the support surface such as the bulkhead with bolts to achieve spatial positioning of the device.

[0037] In this embodiment, a wind turbine generator cable protection device is used by an operator who inserts the cable into the symmetrically arranged limiting plates with open through holes on the edges. At this time, the open rubber pads fixed inside the through holes are compressed when the outer arc-shaped blocks are assembled and locked, forcing the openings of the rubber pads to elastically contract towards the center, forming a radial adaptive clamping force on the cable. This design replaces the traditional clamping and anti-slip structure that relies on bolt tightening. Under suspension conditions, it automatically generates continuous friction, effectively preventing the protection device from sliding down the cable surface due to gravity. The two limiting plates form a stable and rigid support through the long connecting screws in the through holes and the connecting nuts at both ends, ensuring precise fixing of the spacing between multiple cables. The limiting plates are integrally embedded in an annular groove composed of paired arc-shaped blocks. After the assembly screws are inserted into the assembly screw holes on the outer sides of the arc-shaped blocks, the arc-shaped blocks are tightly pressed against the periphery of the limiting plates. The clamping plates at the ends of each arc-shaped block are locked together by the combined screws and nuts, forming a closed-loop support structure. The arc-shaped plate is wrapped around the outer perimeter of the ring support body, and its surface vents promote cable heat dissipation. The inner sides of the two nested limiting arc plates on the outside of the arc plate are covered with rubber strips. When the two are closed into a protective cover by the end mounting blocks and screw nuts, the rubber strips remain in a non-contact state with the outer surface of the arc plate. When the suspended cable swings, the limiting arc plates limit the maximum swing space through rigid contact. If the limiting arc plate hits the inner arc plate due to violent shaking, the rubber strips will preferentially undergo elastic deformation to absorb the impact energy, reduce the collision transmission path, and reduce the indirect impact damage to the cable. The overall spatial positioning of the device is achieved by the connecting frame extending from the limiting arc plate on one side. The mounting holes of the fixing plate at the end of the connecting frame are directly anchored to the wall support structure (such as the nacelle bulkhead or bracket) with bolts, so that the protection system maintains a stable posture in the suspended state. The whole device provides reliable protection for the suspended cable in the complex vibration environment of the wind turbine through the multi-level coordination of dynamic anti-slip of the rubber pad and impact energy dissipation of the rubber strip.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wind turbine generator cable protection device, comprising two symmetrically arranged limiting plates (101), characterized in that: The limiting plate (101) has several open through holes (102) of different sizes on its edge. An open rubber pad (103) is fixedly installed in each of the through holes (102). The limiting plate (101) extends from the center point to both sides and has through holes (104). A long connecting screw (105) passes through each of the through holes (104). Connecting nuts (106) are threaded onto both ends of the long connecting screw (105) to form a stable support between the limiting plates (101). The limiting plate (101) has four assembly screw holes (107) symmetrically opened on its radial outer side.

2. The wind turbine generator cable protection device according to claim 1, characterized in that: The limiting plate (101) is embedded between two sets of arc blocks (108), each set of arc blocks (108) consists of two pieces, and assembly holes (109) are symmetrically opened on the outer side of the arc blocks (108).

3. A wind turbine generator cable protection device according to claim 2, characterized in that: Assembly screws (110) are respectively inserted through the assembly holes (109), and the ends of the assembly screws (110) are threaded into the assembly screw holes (107) to form a fastening structure of the limiting plate (101).

4. A wind turbine generator cable protection device according to claim 3, characterized in that: The arc-shaped block (108) has clamps (111) fixedly installed at both ends. The clamps (111) are fitted together and have combination holes (112) respectively. Combination screws (113) pass through the combination holes (112) respectively. Combination nuts (114) are installed at the ends of the combination screws (113) respectively by threads.

5. A wind turbine generator cable protection device according to claim 4, characterized in that: Arc plates (115) are fixedly installed between the arc blocks (108), and ventilation holes (116) are opened on the arc plates (115). The arc plates (115) are located inside the two limiting arc plates (117) and are separated by a certain gap. The inner side of the limiting arc plates (117) is covered with rubber strips (125).

6. A wind turbine generator cable protection device according to claim 5, characterized in that: Mounting blocks (118) are fixedly installed at both ends of the limiting arc plate (117). The mounting blocks (118) are fitted together and each has a mounting hole (119). Mounting screws (120) pass through the mounting holes (119). Mounting nuts (121) are threaded onto the ends of the mounting screws (120).

7. A wind turbine generator cable protection device according to claim 6, characterized in that: A connecting frame (122) is fixedly installed on the outer side of one of the limiting arc plates (117). A fixing plate (123) is fixedly installed on the opposite end of the connecting frame (122) and the limiting arc plate (117). A fixing hole (124) is opened on the fixing plate (123). A bolt passes through the fixing hole (124) to form a fixing structure with the support surface.

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