A high strength, abrasion resistant insulated cable

Abstract

The utility model discloses a kind of wear-resistant high-strength insulated cables, including cable core, the inside of cable core is equipped with multiple groups of annular distribution wire core, the wire core is composed of conductor, conductor shield layer and inner insulating layer, the outside of cable core is provided with high-strength insulating layer, the high-strength insulating layer is composed of base insulating layer, fiber reinforced layer, the outside of high-strength insulating layer is provided with wear-resistant protective layer, the wear-resistant protective layer is composed of wear-resistant base layer, reinforcing framework layer and wear-resistant outer coating, the scheme solves the problem that traditional cable wear resistance is poor, strength is insufficient, easy to cause insulating layer damage, affect power transmission safety.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a wear-resistant, high-strength insulated cable. Background Technology

[0002] Cables, as vital carriers of power transmission and signal transmission, play a crucial role in many fields such as modern industry, construction, and communications. They typically consist of a conductive core, an insulation layer, a shielding layer, and a protective sheath. The insulation layer isolates the conductive core from the external environment, preventing leakage and short circuits; the protective sheath protects the internal structure from external mechanical damage, chemical corrosion, and environmental factors.

[0003] However, existing cables still have shortcomings in terms of abrasion resistance and high strength. In practical applications, such as industrial production lines that require frequent dragging and friction, or construction sites with complex installation environments and susceptible to external impacts, the outer sheath of traditional cables is easily worn and cracked, and the internal insulation layer may also be damaged due to external pressure. This leads to a decrease in insulation performance, causing safety hazards such as leakage and short circuits, seriously affecting the service life of the cable and the safety of power transmission. They cannot meet the application scenarios with high requirements for abrasion resistance, high strength, and insulation performance. Therefore, we propose an abrasion-resistant, high-strength insulated cable to address these needs. Utility Model Content

[0004] The purpose of this utility model is to provide a wear-resistant, high-strength insulated cable to solve the problems mentioned in the background art, such as poor wear resistance and insufficient strength of traditional cables, which easily lead to damage to the insulation layer and affect the safety of power transmission.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant high-strength insulated cable, comprising a cable core, wherein the cable core has multiple sets of annularly distributed wire cores inside, each wire core consisting of a conductor, a conductor shielding layer, and an inner insulation layer, and a high-strength insulation layer is provided outside the cable core, the high-strength insulation layer consisting of a base insulation layer and a fiber reinforcement layer, and a wear-resistant protective layer is provided outside the high-strength insulation layer, the wear-resistant protective layer consisting of a wear-resistant base layer, a reinforcing skeleton layer, and a wear-resistant outer coating layer.

[0006] Preferably, the conductor is made of multiple strands of high-purity copper wire twisted together.

[0007] Preferably, the conductor shielding layer covers the outside of the conductor, and the inner insulation layer is extruded and formed on the outside of the conductor shielding layer.

[0008] Preferably, the base insulation layer is extruded onto the outside of the cable core, and the fiber reinforcement layer is fixed to the outside of the base insulation layer by an adhesive, wherein the fiber reinforcement layer is made of high-strength glass fiber.

[0009] Preferably, the wear-resistant base layer is bonded and fixed to the outside of the high-strength insulation layer, the reinforcing skeleton layer is set on the outside of the wear-resistant base layer in a spiral winding manner, the reinforcing skeleton layer is high-strength steel wire, and the wear-resistant outer coating is extruded and formed on the outside of the reinforcing skeleton layer, the wear-resistant outer coating is made of polyurethane.

[0010] Preferably, the gaps in the wire core are provided with a filling layer, which is a high-strength elastic material.

[0011] Preferably, the wear-resistant base layer is made of a rubber material with wear-resistant properties.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model significantly improves the mechanical strength of the cable insulation layer by setting a fiber reinforcement layer in the high-strength insulation layer, enabling it to effectively resist external compression and impact, reducing the risk of insulation layer damage caused by external forces, ensuring stable insulation performance of the cable, and extending the service life of the cable.

[0013] 2. In the wear-resistant protective layer of this utility model, the wear-resistant base layer provides basic wear resistance, the reinforced skeleton layer enhances the overall strength and deformation resistance of the protective layer, and the wear-resistant outer sheath further improves the wear resistance of the cable surface, enabling the cable to adapt to various complex usage environments. Under frequent dragging and friction, it effectively reduces the wear of the outer sheath, protects the internal structure from damage, and improves the reliability and durability of the cable.

[0014] 3. The overall structural design of this utility model not only ensures the high strength and wear resistance of the cable, but also the cooperation of each layer of structure further improves the insulation performance of the cable, ensures the safety of power transmission, and meets the application needs of industries, construction and other fields with high requirements for cable performance. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the high-strength insulation layer structure of this utility model; Figure 4 This is a schematic diagram of the wear-resistant protective layer structure of this utility model.

[0016] In the diagram: 1. Cable core; 2. Wire core; 21. Conductor; 22. Conductor shielding layer; 23. Inner insulation layer; 3. High-strength insulation layer; 31. Basic insulation layer; 32. Fiber reinforcement layer; 4. Wear-resistant protective layer; 41. Wear-resistant base layer; 42. Reinforcing skeleton layer; 43. Wear-resistant outer coating layer; 5. Filler layer. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figure 1-4 The present invention provides an embodiment of a wear-resistant high-strength insulated cable, comprising a cable core 1, wherein the cable core 1 has multiple sets of annularly distributed wire cores 2 inside, each wire core 2 consisting of a conductor 21, a conductor shielding layer 22 and an inner insulation layer 23, and a high-strength insulation layer 3 outside the cable core 1, the high-strength insulation layer 3 consisting of a base insulation layer 31 and a fiber reinforcement layer 32, and a wear-resistant protective layer 4 outside the high-strength insulation layer 3, the wear-resistant protective layer 4 consisting of a wear-resistant base layer 41, a reinforcing skeleton layer 42 and a wear-resistant outer covering layer 43; The cable core 1, as the core of the cable, bears the main function of power transmission. Multiple ring-shaped cores 2 work together to efficiently transmit electrical energy. The conductor 21 is responsible for conducting current, the conductor shielding layer 22 suppresses electric field concentration, and the inner insulation layer 23 isolates current leakage. These three elements work together to ensure that the current is transmitted safely. The high-strength insulation layer 3 prevents leakage and short circuits between the cable core 1 and the outside world, and the fiber reinforcement layer 32 enhances its mechanical strength. The wear-resistant protective layer 4 resists damage to the cable from the external environment. This gives the cable wear resistance, high strength, and good insulation performance, making it suitable for complex and harsh operating environments, effectively ensuring the safe and stable transmission of power, and extending the cable's service life.

[0019] Please see Figure 2 The conductor 21 is made of multiple strands of high-purity copper wires twisted together. The conductor 21 formed by twisting multiple strands of high-purity copper wires conducts current by utilizing the good conductivity of copper. The twisted structure increases the flexibility of the conductor. During bending, stretching and other operations, the copper wires can move relative to each other, reducing the risk of breakage caused by stress concentration and ensuring continuous and stable current transmission.

[0020] Please see Figure 2 The conductor shielding layer 22 covers the outside of the conductor 21, and the inner insulation layer 23 is extruded and formed on the outside of the conductor shielding layer 22. The conductor shielding layer 22 is made of a semi-conductive material, which can uniformly disperse the electric field on the surface of the conductor 21 and avoid partial discharge caused by electric field concentration. The inner insulation layer 23 tightly wraps the conductor shielding layer 22, preventing current leakage and ensuring that the current can only flow inside the conductor 21, forming a stable current transmission channel. The combination of the conductor shielding layer 22 and the inner insulation layer 23 effectively improves the electrical stability of the cable, reduces the damage to the cable caused by partial discharge, ensures the long-term safe operation of the cable, and reduces maintenance costs caused by electrical faults.

[0021] Please see Figure 3The basic insulation layer 31 is extruded onto the outside of the cable core 1. Made of cross-linked polyethylene, the basic insulation layer 31 effectively prevents current leakage, ensuring stable current flow within the conductor during power transmission and reducing energy loss. The fiber reinforcement layer 32, made of high-strength glass fiber, is fixed to the outside of the basic insulation layer 31 with an adhesive. The basic insulation layer 31 encases the cable core 1, providing electrical isolation and preventing contact between the cable core and external conductive materials. The high-strength glass fiber reinforcement layer 32, with its high strength, disperses external pressure and impact forces applied to the basic insulation layer 31. When the cable is subjected to compression or collision, the fiber reinforcement layer 32 disperses the external force, preventing damage to the basic insulation layer 31 due to excessive localized stress. The combination of the basic insulation layer 31 and the fiber reinforcement layer 32 significantly improves the mechanical strength and insulation performance of the cable insulation layer, enabling the cable to maintain good insulation even under external forces, reducing safety hazards such as leakage and short circuits.

[0022] Please see Figure 4 The wear-resistant base layer 41 is bonded and fixed to the outside of the high-strength insulation layer 3. The reinforcing skeleton layer 42 is spirally wound on the outside of the wear-resistant base layer 41. The reinforcing skeleton layer 42 is made of high-strength steel wire. The wear-resistant outer coating layer 43 is extruded and formed on the outside of the reinforcing skeleton layer 42. The wear-resistant outer coating layer 43 is made of polyurethane. The wear-resistant base layer 41 is made of rubber material with wear-resistant properties. The wear-resistant protective layer 4, as the outermost protective structure of the cable, is in direct contact with the external environment. The wear-resistant outer coating layer 43 first resists external friction and corrosion. When the cable is in daily use scenarios, such as normal laying, slight dragging, or minor scratches with surrounding objects, the wear-resistant outer coating layer 43, with the high wear resistance of the polyurethane material, initially reduces the wear. To mitigate the impact of external friction on the cable, the wear-resistant base layer 41 also works in concert, utilizing the elasticity and wear-resistant properties of the rubber material to help disperse and buffer the force generated by minor friction. When the cable encounters larger external forces such as frequent friction from construction site sand and gravel or crushing collisions from heavy objects, the wear-resistant outer layer 43 consumes the energy of the external force to a certain extent, and the high-strength steel wire of the reinforcing skeleton layer 42 quickly comes into play. Its robust structure formed by spiral winding can effectively withstand the main impact and tension forces, preventing the cable from deforming as a whole due to external forces. At the same time, it disperses the remaining external forces to the wear-resistant base layer 41 and the wear-resistant outer layer 43. The three work closely together to protect the high-strength insulation layer 3 and the cable core 1 and other structures inside the cable from damage.

[0023] Please see Figure 2A filling layer 5, made of high-strength elastic material, is provided in the gaps between the conductors 2. When the cable is subjected to external force compression or bending, the filling layer 5 undergoes elastic deformation, buffering the direct impact of external force on the conductors 2 while maintaining the relative stability of the conductors 2 and ensuring the integrity of the cable's internal structure. During cable stretching, the filling layer 5 also provides some support, preventing damage to the conductors 2 due to tension. The filling layer 5 ensures the stability of the cable structure, preventing the conductors 2 from shifting or deforming due to external forces, thus affecting power transmission performance. It also enhances the cable's flexibility and resistance to external forces, extending its service life.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wear-resistant, high-strength insulated cable, characterized in that: The cable core (1) includes multiple sets of annularly distributed wire cores (2) inside the cable core (1). The wire core (2) is composed of a conductor (21), a conductor shielding layer (22) and an inner insulation layer (23). A high-strength insulation layer (3) is provided on the outside of the cable core (1). The high-strength insulation layer (3) is composed of a base insulation layer (31) and a fiber reinforcement layer (32). A wear-resistant protective layer (4) is provided on the outside of the high-strength insulation layer (3). The wear-resistant protective layer (4) is composed of a wear-resistant base layer (41), a reinforcing skeleton layer (42) and a wear-resistant outer covering layer (43).

2. The wear-resistant, high-strength insulated cable according to claim 1, characterized in that: The conductor (21) is made of multiple strands of high-purity copper wire twisted together.

3. The wear-resistant, high-strength insulated cable according to claim 1, characterized in that: The conductor shielding layer (22) covers the outside of the conductor (21), and the inner insulation layer (23) is extruded on the outside of the conductor shielding layer (22).

4. The wear-resistant, high-strength insulated cable according to claim 1, characterized in that: The basic insulation layer (31) is extruded onto the outside of the cable core (1), and the fiber reinforcement layer (32) is fixed to the outside of the basic insulation layer (31) by an adhesive. The fiber reinforcement layer (32) is made of high-strength glass fiber.

5. The wear-resistant, high-strength insulated cable according to claim 1, characterized in that: The wear-resistant base layer (41) is bonded and fixed to the outside of the high-strength insulation layer (3). The reinforcing skeleton layer (42) is set on the outside of the wear-resistant base layer (41) in a spiral winding manner. The reinforcing skeleton layer (42) is made of high-strength steel wire. The wear-resistant outer coating layer (43) is extruded and formed on the outside of the reinforcing skeleton layer (42). The wear-resistant outer coating layer (43) is made of polyurethane.

6. The wear-resistant, high-strength insulated cable according to claim 1, characterized in that: The gaps in the core (2) are provided with a filling layer (5), which is a high-strength elastic material.

7. The wear-resistant, high-strength insulated cable according to claim 1, characterized in that: The wear-resistant base layer (41) is made of rubber material with wear-resistant properties.

Images