Wind power cable anti-abrasion sheath device

Abstract

The utility model provides a kind of wind power cable anti-abrasion sheath device, including multiple cable guard rings, multiple the cable guard ring is interval arranged along cable drooping direction, and the both sides of the cable guard ring are equipped with connecting plate, and the cable guard ring is fixed in tower ladder by connecting plate, and the inside of the cable guard ring is equipped with anti-skid sheath component, the utility model is interval arranged multiple cable guard rings (such as 8 meters and 16 meters) along cable drooping direction on the basis of original cable guard ring, can significantly disperse the swing stress generated when cable in strong wind or unit emergency stop, reduce the length of cable overhanging section, to effectively reduce the risk of cable due to violent swing and suffer abrasion. Anti-skid sheath component is composed of inner sleeve and outer sleeve, inner sleeve is equipped with anti-skid convex slot, can significantly increase the friction between inner sleeve and cable, effectively avoid relative sliding between cable and sheath, to protect the insulating layer of cable from being damaged, ensure the safe operation of cable.

Description

Technical Field

[0001] This utility model mainly relates to the field of wind power generation equipment technology, specifically a wind power cable anti-wear sheath device. Background Technology

[0002] In wind turbine units, cables need to descend from the nacelle platform through the center of the tower to the ground. Current designs often use a single cable sheath for support, resulting in long suspended sections (e.g., 25 meters) and a lack of intermediate support. During strong winds or sudden turbine shutdowns, the cable swings violently, causing the sheath to rise. The sheath base rubs against the sheath, damaging the cable insulation and affecting safe operation. Existing sheaths are mostly simple cylindrical structures, lacking anti-slip and cushioning designs, and cannot effectively limit cable displacement. Utility Model Content

[0003] This utility model mainly provides a wind power cable anti-wear sheath device to solve the technical problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A wind power cable anti-wear sheath device includes multiple cable sheaths, which are spaced apart along the downward direction of the cable. Each cable sheath has a connecting plate on both sides and is fixed to the tower ladder by the connecting plate. Furthermore, each cable sheath has an anti-slip sheath assembly inside.

[0005] Preferably, the anti-slip sleeve assembly includes an inner sleeve, anti-slip grooves, and an outer sleeve. The inner sleeve has multiple anti-slip grooves, and the outer sleeve covers the outside of the inner sleeve. The outer sleeve is fixed to the cable guard ring by bolts.

[0006] Preferably, the cable sheaths are spaced 8 meters and 16 meters apart.

[0007] Preferably, the cable sheath is made of hot-dip galvanized steel, and both the inner and outer sheaths are made of flame-retardant materials.

[0008] Preferably, a buffer rubber layer is provided between the cable sheath and the outer jacket.

[0009] Preferably, the outer sleeve has multiple locking holes on one side, and the outer sleeve and the inner sleeve are fixedly connected by self-locking nuts passing through the locking holes.

[0010] Preferably, the outer side of the outer jacket has multiple heat dissipation holes.

[0011] Preferably, the inner wall of the outer jacket is provided with multiple slots, and the slots match the anti-slip protrusions.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By adding multiple cable guards at intervals along the cable's downward direction (e.g., at 8 meters and 16 meters) on top of the existing cable guards, the swing stress generated by the cable during strong winds or sudden shutdowns of the unit can be significantly dispersed, reducing the length of the cable's suspended section and thus effectively reducing the risk of cable wear due to violent swinging.

[0013] 2. The anti-slip sheath assembly consists of an inner sleeve and an outer sleeve. The inner sleeve is provided with anti-slip grooves, which can significantly increase the friction between the inner sleeve and the cable, effectively preventing relative sliding between the cable and the sheath, thereby protecting the cable insulation layer from damage and ensuring the safe operation of the cable.

[0014] 3. The outer sleeve is fixed to the cable sheath with bolts. This fixing method is simple and reliable, and is easy to install and maintain. Multiple locking holes are opened on one side of the outer sleeve, so that the outer sleeve and the inner sleeve can be fixedly connected by self-locking nuts. The use of self-locking nuts can not only ensure the tightness of the connection, but also prevent the nuts from loosening due to vibration during long-term operation, thereby ensuring the long-term stable operation of the entire device.

[0015] 4. A buffer rubber layer is installed between the cable sheath and the outer jacket, which can buffer the cable when it swings and hits the cable sheath, reduce the impact force on the cable, further protect the cable from mechanical damage, and extend the service life of the cable.

[0016] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a top view of the inner and outer sleeve structure of this utility model; Figure 2 This is a front view of the outer casing structure of this utility model; Figure 3 This is a front view of the cable sheath structure of this utility model; Figure 4 This is a schematic diagram of the connection structure between the cable sheath and the connecting plate of this utility model; Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0018] The attached diagram is labeled as follows: 1. Cable guard ring; 2. Connecting plate; 3. Anti-slip sleeve assembly; 301. Inner sleeve; 302. Anti-slip groove; 303. Outer sleeve; 4. Buffer rubber layer; 5. Locking hole; 6. Self-locking nut; 7. Heat dissipation hole; 8. Slot. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive. Example

[0020] Please refer to the appendix carefully. Figure 1-5A wind power cable anti-wear sheath device mainly consists of multiple cable sheaths 1, which are spaced apart along the cable's downward direction, specifically at intervals of 8 meters and 16 meters. This effectively disperses the stress generated during cable swaying, reduces the length of the suspended section of the cable, and thus significantly reduces the risk of cable wear due to swaying. The cable sheaths 1 are made of hot-dip galvanized steel, which has good corrosion resistance and ensures the structural strength and stability of the sheaths, enabling them to work stably for a long time in harsh natural environments. Connecting plates 2 are provided on both sides of the cable sheaths 1, allowing them to be firmly fixed to the tower ladder, ensuring the safety of the entire device. To ensure stability and reliability, the cable sheath 1 remains stable even under various forces generated during wind turbine operation, without loosening or shifting. An anti-slip sleeve assembly 3 is installed inside the cable sheath 1. This assembly consists of an inner sleeve 301, anti-slip grooves 302, and an outer sleeve 303. The inner sleeve 301 has multiple anti-slip grooves 302, which significantly increase the friction between the inner sleeve 301 and the cable, protecting the cable's insulation layer from damage and ensuring safe operation. The outer sleeve 303 tightly covers the outer side of the inner sleeve 301. Both the inner sleeve 301 and the outer sleeve 303 are made of flame-retardant materials and meet UL94 standards. The V0 standard ensures that the entire anti-slip sheath assembly 3 can effectively prevent the spread of fire when exposed to a fire source, greatly improving the safety of the device and providing strong protection for the safe operation of the wind turbine. A buffer rubber layer 4 is installed between the cable sheath 1 and the outer sleeve 303. This buffer rubber layer 4 acts as a buffer when the cable swings and impacts the cable sheath 1, reducing the impact force on the cable and further protecting the cable from mechanical damage, thus extending its service life. The outer sleeve 303 is fixed to the cable sheath 1 with bolts for easy installation and maintenance. Multiple locking holes 5 are provided on one side of the outer sleeve 303, allowing the outer sleeve 303 and the inner sleeve 301 to be fixedly connected using self-locking nuts 6. This design not only ensures a tight connection but also prevents the nut from loosening due to vibration during long-term operation, thus guaranteeing the long-term stable operation of the entire device. The outer sleeve 303 also has multiple heat dissipation holes 7. During operation, the cable generates heat, which is effectively dissipated through the heat dissipation holes 7, preventing overheating from affecting the cable's performance and lifespan, further improving the cable's durability. The inner wall of the outer sleeve 303 also has multiple slots 8, which match the anti-slip protrusions 302 on the inner sleeve 301, making the connection between the inner sleeve 301 and the outer sleeve 303 tighter and more stable, further enhancing the overall performance and reliability of the anti-slip sleeve assembly 3.

[0021] The specific operation method of this utility model is as follows: During installation, cable sheath 1 is added 8 meters and 16 meters downstream of the original cable sheath 1, and fixed to the ladder through connecting plate 2 to ensure concentricity. Then, the inner sleeve 301 is embedded into the cable trough and adjusted to the cable alignment. The outer sleeve 303 is then placed over the outer side of the inner sleeve 301, and the outer sleeve 303 is connected to the inner sleeve 301 through the locking hole 5 using self-locking nut 6. The distance between the upper and lower ears is adapted to cable displacement. Finally, the outer sleeve 303 is fixed to the cable sheath 1 and tightened symmetrically with bolts.

[0022] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A wind power cable anti-wear sheath device, comprising multiple cable sheaths (1), characterized in that: Multiple cable guard rings (1) are spaced apart along the downward direction of the cable, and connecting plates (2) are provided on both sides of the cable guard rings (1). The cable guard rings (1) are fixed to the tower ladder through the connecting plates (2), and anti-slip sleeve components (3) are provided inside the cable guard rings (1). The anti-slip sleeve assembly (3) includes an inner sleeve (301), anti-slip grooves (302), and an outer sleeve (303). The inner sleeve (301) has multiple anti-slip grooves (302) on its surface. The outer sleeve (303) covers the outer side of the inner sleeve (301). The outer sleeve (303) is fixed to the cable sheath (1) by bolts.

2. The wind power cable anti-wear sheath device according to claim 1, characterized in that, The cable guards (1) are spaced 8 meters and 16 meters apart.

3. The wind power cable anti-wear sheath device according to claim 1, characterized in that, The cable sheath (1) is made of hot-dip galvanized steel, and the inner sleeve (301) and outer sleeve (303) are both made of flame-retardant materials.

4. The wind power cable anti-wear sheath device according to claim 1, characterized in that, A buffer rubber layer (4) is provided between the cable sheath (1) and the outer jacket (303).

5. The anti-wear sheath device for wind power cables according to claim 1, characterized in that, The outer sleeve (303) has multiple locking holes (5) on one side, and the outer sleeve (303) and the inner sleeve (301) are fixedly connected by a self-locking nut (6) passing through the locking holes (5).

6. The wind power cable anti-wear sheath device according to claim 1, characterized in that, The outer side of the outer jacket (303) has multiple heat dissipation holes (7).

7. The wind power cable anti-wear sheath device according to claim 1, characterized in that, The inner wall of the outer jacket (303) is provided with multiple slots (8), and the slots (8) are matched with the anti-slip protrusions (302).

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