Abrasion-resistant cable

Abstract

This utility model discloses a wear-resistant cable, comprising an inner core, an XLPE insulation layer outside the inner core, a fire-resistant mica tape winding layer outside the XLPE insulation layer, an extruded flame-retardant layer outside the fire-resistant mica tape winding layer, an inner polyurethane layer on the extruded flame-retardant layer, an inner rib layer wound around the inner polyurethane layer, and an outer polyurethane layer outside the inner rib layer. This utility model has the following advantages and effects: by setting an inner rib layer within the inner and outer polyurethane layers, when the outer polyurethane layer itself is worn, the inner rib layer can protect the inner polyurethane layer, thereby further reducing wear on the outermost layer of the cable and protecting the stability of the internal structure of the cable.

Description

Technical Field

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

[0002] In the fields of modern power transmission and information communication, wires and cables are key components, and their performance directly affects the stability and reliability of the entire system.

[0003] During use, conventional cables are often worn down and corroded by harsh external environments, leading to decreased cable performance and even malfunctions. Since the outermost layer of the cable is usually in contact with the outside, its design becomes the most crucial factor in determining the cable's abrasion resistance. Utility Model Content

[0004] The purpose of this invention is to provide a wear-resistant cable.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a wear-resistant cable, including an inner core, an XLPE insulation layer outside the inner core, a fire-resistant mica tape winding layer outside the XLPE insulation layer, an extruded flame-retardant layer outside the fire-resistant mica tape winding layer, an inner polyurethane layer on the extruded flame-retardant layer, an inner rib layer wound around the inner polyurethane layer, and an outer polyurethane layer outside the inner rib layer.

[0006] The inner reinforcement layer is further configured such that a fiberglass mesh is provided on the outside of the fiberglass mesh.

[0007] The outer polyurethane layer is further configured to include a plurality of protrusions on its outer side.

[0008] Further configuration: the protrusion includes a dot, spike, or polygonal boss structure.

[0009] In summary, this utility model has the following beneficial effects: by setting an inner rib layer inside the inner and outer polyurethane layers, when the outer polyurethane layer itself is worn, the inner rib layer can protect the inner polyurethane layer, thereby further reducing the wear of the outermost layer of the cable and protecting the stability of the internal structure of the cable. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of abrasion-resistant cable;

[0011] Figure 2 This is a schematic diagram of the internal reinforcement layer.

[0012] In the diagram: 1. Inner core; 2. XLPE insulation layer; 3. Fire-resistant mica tape winding layer; 4. Extruded flame-retardant layer; 5. Inner polyurethane layer; 6. Inner rib layer; 61. Fiberglass mesh; 62. Polyoxymethylene layer; 7. Outer polyurethane layer; 8. Protrusion. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings.

[0014] A wear-resistant cable includes a copper inner core 1 with a circular cross-section. An XLPE insulation layer 2 is disposed on the outside of the inner core 1, and a fire-resistant mica tape winding layer 3 is disposed on the outside of the XLPE insulation layer 2.

[0015] An extruded flame-retardant layer 4 is provided outside the fire-resistant mica tape winding layer 3, and the extruded flame-retardant layer 4 is made of polyolefin material.

[0016] An inner polyurethane layer 5 is disposed on the extruded flame-retardant layer 4, an inner rib layer 6 is wound around the inner polyurethane layer 5, and an outer polyurethane layer 7 is disposed around the inner rib layer 6. The inner polyurethane layer 5 and the outer polyurethane layer 7 can cover the inner rib layer 6, so that the inner rib layer 6 is actually disposed within the inner and outer polyurethane layers and provides support for the inner and outer polyurethane layers 7. The outer polyurethane layer 7 itself has considerable wear resistance. When the outer polyurethane layer 7 is worn, the inner rib layer 6 can resist further external wear, thereby protecting the inner polyurethane layer 5 and improving the wear resistance of the cable.

[0017] The inner rib layer 6 includes a fiberglass mesh 61, which is woven from glass fiber and is wrapped diagonally around the outside of the inner polyurethane layer 5 in a strip shape. When the outer polyurethane layer 7 is extruded, it can fix the fiberglass mesh 61.

[0018] A polyoxymethylene layer 62 is provided on the outside of the fiberglass mesh 61. The polyoxymethylene layer 62 can work with the fiberglass mesh 61 to further increase the wear resistance, thereby protecting the inner polyurethane layer 5.

[0019] A protrusion 8 is provided on the outer side of the outer polyurethane layer 7. The protrusion 8 can be a dot, a spike, or a polygonal boss structure. The protrusion 8 can first bear the wear of the outer polyurethane layer 7 due to the large area of ​​contact, thereby protecting the outer polyurethane layer 7 to a certain extent, reducing external wear, and increasing service life.

[0020] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A wear-resistant cable comprising an inner core, an XLPE insulation layer arranged outside the inner core, a fire-resistant mica tape winding layer arranged outside the XLPE insulation layer, and an extruded flame-retardant layer arranged outside the fire-resistant mica tape winding layer, characterized in that: An inner polyurethane layer is provided on the extruded flame retardant layer, an inner rib layer is wound around the inner polyurethane layer, and an outer polyurethane layer is provided outside the inner rib layer.

2. A wear resistant cable according to claim 1, characterized in that: The inner rib layer includes a fiberglass mesh, and a polyoxymethylene layer is disposed outside the fiberglass mesh.

3. A wear resistant cable according to claim 1, characterized in that: The outer polyurethane layer includes multiple protrusions on the outer side.

4. A wear resistant cable according to claim 3, characterised in that: The protrusions include dots, spikes, or polygonal boss structures.

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