Abrasion-resistant overhead insulated conductor

Abstract

The utility model discloses a wear -resisting overhead insulated conductor relates to overhead insulated conductor technical field. This wear -resisting overhead insulated conductor, including wear -resisting inner layer and wear -resisting protection structure, wear -resisting protection structure includes wear -resisting outer layer, spiral thread and micro convex point, the number of wear -resisting outer layer is multiple and is equidistant fixedly connected in the outer surface of wear -resisting inner layer in the way of circular array, the shape of every wear -resisting outer layer is all spiral, the number of spiral thread is multiple and is respectively set up between two corresponding wear -resisting outer layers, the number of micro convex point is multiple and all equidistant fixedly connected in the outer surface of wear -resisting outer layer, through wear -resisting inner layer and the cooperation of multiple spiral wear -resisting outer layers, has promoted the overall wear -resisting performance of conductor, the combination of spiral thread and micro convex point has reduced the friction damage, has prolonged the service life of conductor, makes conductor have excellent wear -resisting while can effectively prevent the moisture invasion, strengthens the structural strength and reduces the weight.

Description

Technical Field

[0001] This utility model relates to the field of overhead insulated conductor technology, and in particular to a wear-resistant overhead insulated conductor. Background Technology

[0002] Overhead insulated conductors are a type of conductor widely used in power transmission. They are wrapped with an outer insulation layer, mainly used to prevent short circuits, reduce power loss, and improve power supply security. They are suitable for urban power distribution networks, rural power grid transformation, railway electrification, and power transmission in complex terrains (such as mountains and forests). They have advantages such as easy installation, strong corrosion resistance, and adaptability to harsh environments, and are an indispensable component of modern power systems.

[0003] In existing technologies, the wear-resistant structure of traditional overhead insulated conductors is relatively simple, relying mostly on a single layer of insulation to achieve wear resistance. Their surfaces are usually smooth, making them prone to significant wear when subjected to lateral friction. Furthermore, under wind conditions, the friction direction between the conductor and other objects becomes chaotic, exacerbating the damage to the insulation layer. Moreover, the synergy between waterproof and impact-resistant properties and the wear-resistant structure is poor, resulting in easy water intrusion in complex environments, difficulty in effectively dispersing impact forces, and an inability to balance the overall structural strength and weight. Consequently, they cannot meet the usage requirements under high wear and complex working conditions. Therefore, a wear-resistant overhead insulated conductor is needed. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a wear-resistant overhead insulated conductor that can solve the problem that the surface of a single insulation layer is usually designed to be smooth, which makes it easy to generate large wear when subjected to lateral friction, and that the chaotic friction direction between the conductor and other objects under the action of wind exacerbates the damage to the insulation layer.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant overhead insulated conductor, comprising a wear-resistant inner layer and a wear-resistant protective structure. The wear-resistant protective structure includes a wear-resistant outer layer, spiral patterns, and micro-protrusions. The wear-resistant outer layers are multiple and are equidistantly fixedly connected to the outer surface of the wear-resistant inner layer in a circumferential array. Each wear-resistant outer layer is spiral in shape. The spiral patterns are multiple and are respectively opened between two corresponding wear-resistant outer layers. The micro-protrusions are multiple and are equidistantly fixedly connected to the outer surface of the wear-resistant outer layer.

[0006] Preferably, the inner wall of the wear-resistant inner layer is fixedly connected to a waterproof layer, the inner wall of the waterproof layer is fixedly connected to a reinforcing layer, and the interior of the reinforcing layer is fixedly connected with multiple high-strength steel wires at equal intervals in a circumferential array.

[0007] Preferably, a buffer layer is fixedly connected to the inner wall of the reinforcing layer, and an outer semiconductive shielding layer is fixedly connected to the inner wall of the buffer layer.

[0008] Preferably, an insulating layer is fixedly connected to the inner wall of the outer semiconductive shielding layer. The insulating layer is made of insulating materials such as ethylene propylene rubber, and an inner semiconductive shielding layer is fixedly connected to the inner wall of the insulating layer.

[0009] Preferably, an insulating sleeve is fixedly connected to the inner wall of the inner semiconductive shielding layer, and multiple insulating outer sheaths are fixedly connected inside the insulating sleeve.

[0010] Preferably, the insulating outer sheath is spirally wound, and a wire is fixedly connected inside the insulating outer sheath.

[0011] Preferably, the outer semiconductive shielding layer and the insulating layer are both made of a mixture of high molecular materials such as carbon black and polyethylene, which can create a uniform electric field and prevent external electromagnetic interference from affecting the insulating layer and the conductor.

[0012] Preferably, the waterproof layer is made of a water-absorbing and swelling material that rapidly absorbs and swells when moisture enters the conductor, preventing further penetration.

[0013] Preferably, the reinforcing layer is made of aramid fiber, which can reduce the weight of the conductor while ensuring its strength.

[0014] Preferably, the buffer layer is made of materials with buffering properties such as foamed polyethylene or rubber to absorb and disperse impact force.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This wear-resistant overhead insulated conductor, through the combination of a wear-resistant inner layer and multiple spiral wear-resistant outer layers, enhances the overall wear resistance of the conductor. The combination of spiral patterns and micro-protrusions reduces frictional damage and extends the service life of the conductor. It organically combines waterproof, reinforcement, buffering, and shielding functions with the wear-resistant structure, enabling the conductor to effectively prevent moisture intrusion while possessing excellent wear resistance, enhancing structural strength and reducing weight, absorbing and dispersing impact forces, and shielding electromagnetic interference. This improves the conductor's adaptability and reliability in complex environments. The synergistic effect of each structure allows the conductor to achieve functional integration while ensuring performance, reducing the complexity of setting up individual functional layers and lowering the overall cost. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the insulating sleeve of this utility model; Figure 4 This is a schematic diagram of the wire of this utility model.

[0017] Reference numerals: 1. Wear-resistant inner layer; 2. Wear-resistant outer layer; 3. Spiral texture; 4. Micro-protrusions; 5. Waterproof layer; 6. Reinforcing layer; 7. High-strength steel wire; 8. Buffer layer; 9. Outer semi-conductive shielding layer; 10. Insulation layer; 11. Inner semi-conductive shielding layer; 12. Insulating sleeve; 13. Insulating outer sheath; 14. Conductor. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a wear-resistant overhead insulated conductor, including a wear-resistant inner layer 1 and a wear-resistant protective structure. The wear-resistant protective structure includes a wear-resistant outer layer 2, spiral patterns 3, and micro-protrusions 4. The wear-resistant outer layers 2 are multiple and are equidistantly fixedly connected to the outer surface of the wear-resistant inner layer 1 in a circumferential array. Each wear-resistant outer layer 2 is spiral in shape. The spiral patterns 3 are multiple and are respectively opened between two corresponding wear-resistant outer layers 2. The micro-protrusions 4 are multiple and are equidistantly fixedly connected to the outer surface of the wear-resistant outer layer 2.

[0023] Furthermore, a waterproof layer 5 is fixedly connected to the inner wall of the wear-resistant inner layer 1, and a reinforcing layer 6 is fixedly connected to the inner wall of the waterproof layer 5. Multiple high-strength steel wires 7 are fixedly connected at equal intervals in a circular array inside the reinforcing layer 6. A buffer layer 8 is fixedly connected to the inner wall of the reinforcing layer 6, and an outer semi-conductive shielding layer 9 is fixedly connected to the inner wall of the buffer layer 8. An insulating layer 10 is fixedly connected to the inner wall of the outer semi-conductive shielding layer 9. The insulating layer 10 is made of insulating materials such as ethylene propylene rubber. An inner semi-conductive shielding layer 11 is fixedly connected to the inner wall of the insulating layer 10, and an insulating sleeve 12 is fixedly connected to the inner wall of the inner semi-conductive shielding layer 11. The insulating sleeve 12 is internally fixedly connected to… Multiple insulating outer sheaths 13 are attached, which are spirally wound. A wire 14 is fixedly connected inside the insulating outer sheath 13. The outer semiconductive shielding layer 9 and the insulating layer 10 are both made of a mixture of high molecular materials such as carbon black and polyethylene. They can create a uniform electric field and prevent external electromagnetic interference from affecting the insulating layer and conductor. The waterproof layer 5 is made of water-absorbing and swelling material. When water enters the wire, it quickly absorbs water and expands, preventing further penetration. The reinforcing layer 6 is made of aramid fiber, which can reduce the weight of the wire while ensuring its strength. The buffer layer 8 is made of foamed polyethylene or rubber and other materials with buffering properties to absorb and disperse impact force.

[0024] Furthermore, the wear-resistant inner layer 1 serves as a basic protective layer, providing initial wear-resistant support for the overall structure. Multiple spiral wear-resistant outer layers 2, arranged in a circumferential array and equidistantly fixed on the outer surface of the wear-resistant inner layer 1, form the main external wear-resistant barrier, directly resisting external friction. The spiral patterns 3 between the wear-resistant outer layers 2 guide the friction direction to be consistent with the conductor axis, reducing damage caused by lateral friction. Multiple micro-protrusions 4 on the outer surface of the wear-resistant outer layer 2 reduce the coefficient of friction by reducing the contact area. The waterproof layer 5 rapidly absorbs water and expands when moisture intrudes, preventing further water penetration. Multiple high-strength steel wires 7 in the reinforcing layer 6, combined with aramid fiber material, reduce weight while ensuring strength. The buffer layer 8 absorbs and disperses impact force, protecting the internal structure. The outer semiconductive shielding layer 9 and the inner semiconductive shielding layer 11 create a uniform electric field to prevent external electromagnetic interference. The insulating layer 10 provides insulation performance, and the spirally wound insulating outer sheath 13 further protects the internal conductors 14.

[0025] Furthermore, the multi-layered wear-resistant structural design, through the combination of a wear-resistant inner layer and multiple spiral wear-resistant outer layers, enhances the overall wear resistance of the conductor. The combination of spiral patterns and micro-protrusions reduces frictional damage and extends the service life of the conductor. It organically integrates waterproof, reinforcement, buffering, and shielding functions with the wear-resistant structure, enabling the conductor to effectively prevent moisture intrusion while possessing excellent wear resistance, enhancing structural strength and reducing weight, absorbing and dispersing impact forces, and shielding electromagnetic interference. This improves the conductor's adaptability and reliability in complex environments. The synergistic effect of each structure allows the conductor to achieve functional integration while ensuring performance, reducing the complexity of setting up individual functional layers and lowering the overall cost.

[0026] Structural Description: Wear-resistant inner layer 1: As a basic protective layer, it provides initial wear-resistant support for the overall structure. Through fixed connection with wear-resistant outer layer 2, it forms a composite wear-resistant system, directly bearing external mechanical friction and dispersing stress. Wear-resistant outer layer 2: It is fixed on the outer surface of wear-resistant inner layer 1 in a spiral circumferential array, forming the main external wear-resistant barrier. Its special shape can disperse frictional stress and extend service life. Spiral texture 3: It is formed between adjacent wear-resistant outer layers 2, and guides the friction direction to be consistent with the axis of the conductor, effectively reducing the damage to the structure caused by lateral friction; Micro-bumps 4: evenly distributed on the surface of the wear-resistant outer layer 2, reducing the coefficient of friction by decreasing the contact area, while enhancing the surface's wear resistance; Waterproof layer 5: It fits tightly against the inner wall of the wear-resistant inner layer 1. When water penetrates, it expands rapidly to form a barrier layer to prevent water from penetrating into the internal structure. Reinforcing layer 6: High-strength steel wires 7 with built-in circumferential array, combined with the characteristics of fiber materials to achieve lightweight design, while improving overall tensile strength and mechanical stability; Buffer layer 8: Located between reinforcing layer 6 and outer semiconductive shielding layer 9, it absorbs external impact through elastic deformation and protects the internal conductor from vibration damage. Outer semiconductive shielding layer 9: Combined with insulating layer 10, it forms a uniform electric field layer, eliminating the risk of partial discharge and shielding external electromagnetic interference; Insulating layer 10: As the core insulating medium, it provides stable electrical isolation performance, and at the same time works with the semiconducting layer to optimize the electric field distribution; Inner semiconductive shielding layer 11: Together with insulating layer 10 and outer semiconductive shielding layer 9, it forms a triple shielding system to further ensure electric field uniformity; Insulating sleeve 12: Wraps the spiral insulating outer skin 13, fixes the internal structure and assists in insulation protection, forming the last insulating barrier for the conductor; Insulation sheath 13: The spiral winding structure enhances flexibility and torsion resistance, preventing the conductor 14 from being damaged by bending or twisting; Conductor 14: As the core conductive carrier, it has a multi-layer protective structure to ensure its stable power transmission performance in complex environments.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A wear-resistant overhead insulated conductor, characterized in that, include: Wear-resistant inner layer (1); The wear-resistant protective structure includes a wear-resistant outer layer (2), spiral patterns (3) and micro-protrusions (4). The wear-resistant outer layer (2) is a plurality of layers and is fixedly connected to the outer surface of the wear-resistant inner layer (1) in a circumferential array. Each wear-resistant outer layer (2) is spiral in shape. The spiral patterns (3) are a plurality of layers and are respectively opened between two corresponding wear-resistant outer layers (2). The micro-protrusions (4) are a plurality of layers and are fixedly connected to the outer surface of the wear-resistant outer layer (2) at equal intervals.

2. The wear-resistant overhead insulated conductor according to claim 1, characterized in that: The inner wall of the wear-resistant inner layer (1) is fixedly connected to a waterproof layer (5), and the inner wall of the waterproof layer (5) is fixedly connected to a reinforcing layer (6). The interior of the reinforcing layer (6) is fixedly connected with multiple high-strength steel wires (7) in a circular array at equal intervals.

3. The wear-resistant overhead insulated conductor according to claim 2, characterized in that: The inner wall of the reinforcing layer (6) is fixedly connected to a buffer layer (8), and the inner wall of the buffer layer (8) is fixedly connected to an outer semiconductive shielding layer (9).

4. The wear-resistant overhead insulated conductor according to claim 3, characterized in that: An insulating layer (10) is fixedly connected to the inner wall of the outer semiconductive shielding layer (9), and an inner semiconductive shielding layer (11) is fixedly connected to the inner wall of the insulating layer (10).

5. The wear-resistant overhead insulated conductor according to claim 4, characterized in that: An insulating sleeve (12) is fixedly connected to the inner wall of the inner semiconductive shielding layer (11), and multiple insulating outer skins (13) are fixedly connected inside the insulating sleeve (12).

6. The wear-resistant overhead insulated conductor according to claim 5, characterized in that: The insulating outer sheath (13) is spirally wound, and a wire (14) is fixedly connected inside the insulating outer sheath (13).

7. The wear-resistant overhead insulated conductor according to claim 3, characterized in that: The outer semiconductive shielding layer (9) and the insulating layer (10) are both made of carbon black and polyethylene, which can uniformly generate an electric field and prevent external electromagnetic interference from affecting the insulating layer and the conductor.

8. The wear-resistant overhead insulated conductor according to claim 2, characterized in that: The waterproof layer (5) is made of a water-absorbing and swelling material that rapidly absorbs and swells when water enters the conductor, preventing further penetration.

9. The wear-resistant overhead insulated conductor according to claim 2, characterized in that: The reinforcing layer (6) is made of aramid fiber, which can reduce the weight of the conductor while ensuring the strength of the conductor.

10. A wear-resistant overhead insulated conductor according to claim 3, characterized in that: The buffer layer (8) is made of foamed polyethylene or rubber, which has buffering properties, to absorb and disperse impact force.

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