Special cable for carry-scraper

Abstract

The utility model provides a special cable for a carry-scraper, which belongs to the technical field of cables, and comprises a wire core unit, the wire core unit comprises a reinforcing core, a conductor layer, a reinforcing layer and an insulating layer, the conductor layer is located outside the reinforcing core and wraps the reinforcing core, the reinforcing layer is located outside the conductor layer and wraps the conductor layer, and the insulating layer is located outside the reinforcing layer and wraps the conductor layer. The insulating layer is located outside the reinforcing layer and wraps the reinforcing layer; the wrapping tape layer is located outside the wire core units and wraps the wire core units; the sheath layer is located outside the belting layer and wraps the belting layer; wherein the reinforcing core is a steel wire pipe fitting, and the reinforcing layer is an aramid yarn piece. The beneficial effects of the utility model are that the inner part of the conductor employs the steel wire reinforcement tube for conductor reinforcement, and the outer part of the conductor employs the aramid fiber tow for reinforcement, thereby enabling the conductor to be higher in distortion resistance and tensile performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables and relates to a special cable for a scraper. Background Art

[0002] At present, special cables for scrapers are widely used in scraper equipment at waste incineration plants, waste power plants, underground mining operation sites, coal mines, iron ore mines, lifting and hoisting sites, large logistics sites, and port terminal sites. Ordinary special cables for scrapers are composed of multiple fine copper wires. An insulating rubber layer is installed outside the combined conductor. The insulating rubber layer is divided into a main line insulating rubber layer and an auxiliary line insulating rubber layer, and the main line rubber insulating layer and the auxiliary line rubber insulating layer are combined together to form a combined cable core. A rubber protective layer is installed outside the cable core. Its composition structure belongs to an ordinary special scraper cable, which is only suitable for use in an environment with few winding times, low back-and-forth winding frequencies, and infrequent translation or forward dragging.

[0003] For example, the patent with the publication number CN104332236A discloses a cable, which includes a conductive core body, an insulating layer, a shielding layer, and a protective layer. Shielding layers are respectively arranged inside and outside the insulating layer. The conductive core body includes a conductive inner core, fins arranged radially along the conductive inner core, and a heat dissipation layer filled between the fins. The heat dissipation layer is a low melting point alloy layer.

[0004] In summary, due to the lack of a strengthening structure in some existing technical solutions and the relatively fragile core body itself, the core is prone to breakage or core extraction during use, and there is a large room for improvement. Summary of the Invention

[0005] The purpose of the utility model is to provide a special cable for a scraper in view of the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A special cable for a scraper includes: a core unit, which includes a strengthening core, a conductor layer, a strengthening layer, and an insulating layer. The conductor layer is located outside the strengthening core and wraps the strengthening core. The strengthening layer is located outside the conductor layer and wraps the conductor layer. The insulating layer is located outside the strengthening layer and wraps the strengthening layer; a tape layer, which is located outside the core unit and wraps the core unit; a sheath layer, which is located outside the tape layer and wraps the tape layer; wherein, the strengthening core is a steel pipe fitting, and the strengthening layer is an aramid fiber part.

[0007] In the above special cable for a scraper, the strengthening core is spiral tubular.

[0008] In the above special cable for a scraper, the strengthening layer is woven by aramid fibers.

[0009] In the above-mentioned special cable for a scraper, the conductor layer is an oxygen-free copper conductor.

[0010] In the above-mentioned special cable for a scraper, the insulating layer is a rubber insulating layer.

[0011] In the above-mentioned special cable for a scraper, the sheath layer includes an outer sheath layer and an inner sheath layer. The inner sheath layer is located outside the tape layer and wraps the tape layer, and the outer sheath layer is located outside the inner sheath layer and wraps the inner sheath layer.

[0012] In the above-mentioned special cable for a scraper, the sheath layer further includes an armor layer. The armor layer is located outside the inner sheath layer and wraps the inner sheath layer, and the outer sheath layer is located outside the armor layer and wraps the armor layer.

[0013] In the above-mentioned special cable for a scraper, the armor layer is made of steel wire parts.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. A steel wire strengthening tube is used as a conductor strengthener inside the conductor, and an aramid fiber bundle is wound around the outside of the conductor to make the conductor have high anti-twisting and tensile properties.

[0016] 2. Aramid fiber braiding is used for strengthening, which improves the anti-twisting and tensile properties of the cable core.

[0017] 3. Using oxygen-free copper for the conductor can enhance the conductivity of the wire core and improve the corrosion resistance.

[0018] 4. The sheath layer enables the cable to have flame retardancy, wear resistance and tensile properties.

[0019] 5. The armor layer enables the cable to have tensile, anti-twisting, anti-bending and anti-impact properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a special cable for a scraper of the present utility model.

[0021] In the figure, 100, strengthening core; 200, conductor layer; 300, strengthening layer; 400, insulating layer; 500, tape layer; 600, inner sheath layer; 610, outer sheath layer; 620, armor layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following are specific embodiments of the present utility model and in combination with the drawings, the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0025] In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0027] The specific embodiments described herein are only illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0028] As Figure 1 shown, a special cable for a scraper includes: a core unit, a tape layer 500, and a sheath layer.

[0029] Among them, the core unit includes a strengthening core 100, a conductor layer 200, a strengthening layer 300, and an insulating layer 400. The conductor layer 200 is located outside the strengthening core 100 and wraps the strengthening core 100. The strengthening layer 300 is located outside the conductor layer 200 and wraps the conductor layer 200. The insulating layer 400 is located outside the strengthening layer 300 and wraps the strengthening layer 300.

[0030] Among them, the tape layer 500 is located outside the core unit and wraps the core unit.

[0031] Among them, the sheath layer is located outside the tape layer 500 and wraps the tape layer 500.

[0032] Among them, the strengthening core 100 is a steel wire pipe fitting, and the strengthening layer 300 is an aramid fiber part.

[0033] In this embodiment, a steel wire strengthening pipe is used inside the conductor for conductor strengthening, and aramid fiber bundles are wound around the outside of the conductor to enable the conductor to have high anti-twisting and anti-tensile properties.

[0034] As Figure 1 shown, on the basis of the above embodiment, the strengthening core 100 is spiral tubular.

[0035] In this embodiment, the strengthening core 100 being spiral tubular can increase the anti-twisting and anti-tensile properties of the core.

[0036] As Figure 1 shown, on the basis of the above embodiment, the strengthening layer 300 is woven by aramid fibers.

[0037] In this embodiment, using aramid fiber weaving for strengthening improves the anti-twisting and anti-tensile properties of the cable core.

[0038] As Figure 1 shown, on the basis of the above embodiment, the conductor layer 200 is an oxygen-free copper conductor.

[0039] In this embodiment, using oxygen-free copper for the conductor can enhance the conductivity of the core and improve the corrosion resistance.

[0040] As Figure 1 shown, on the basis of the above embodiment, the insulating layer 400 is a rubber insulating layer 400.

[0041] In this embodiment, the rubber insulating layer 400 can increase the flame retardant property of the core.

[0042] As Figure 1 shown, on the basis of the above embodiment, the sheath layer includes an outer sheath layer 610 and an inner sheath layer 600. The inner sheath layer 600 is located outside the tape layer 500 and wraps the tape layer 500. The outer sheath layer 610 is located outside the inner sheath layer 600 and wraps the inner sheath layer 600.

[0043] In this embodiment, the sheath layer can make the cable have flame retardant property, wear resistance and anti-tensile property.

[0044] AsFigure 1 As shown, on the basis of the above-described embodiment, the sheath layer further includes an armor layer 620. The armor layer 620 is located outside the inner sheath layer 600 and encloses the inner sheath layer 600. The outer sheath layer 610 is located outside the armor layer 620 and encloses the armor layer 620.

[0045] In this embodiment, the armor layer 620 enables the cable to have the properties of tensile strength, twist resistance, bending resistance, and impact resistance.

[0046] As Figure 1 shown, on the basis of the above-described embodiment, the armor layer 620 is a steel wire member.

[0047] In this embodiment, the steel wire member can increase the tensile strength and twist resistance of the cable.

Claims

1. A special cable for a scraper, characterized in that, Comprising: A core unit, which includes a strengthening core, a conductor layer, a strengthening layer, and an insulating layer. The conductor layer is located outside the strengthening core and wraps the strengthening core. The strengthening layer is located outside the conductor layer and wraps the conductor layer. The insulating layer is located outside the strengthening layer and wraps the strengthening layer; A tape layer, which is located outside the core unit and wraps the core unit; A sheath layer, which is located outside the tape layer and wraps the tape layer; Wherein, the strengthening core is a steel pipe fitting, and the strengthening layer is an aramid fiber part.

2. The special cable for a scraper as described in claim 1, characterized in that: The strengthening core is a spiral tube.

3. The special cable for a scraper as described in claim 1, characterized in that: The strengthening layer is woven by aramid fibers.

4. The special cable for a scraper as described in claim 1, characterized in that: The conductor layer is an oxygen-free copper conductor.

5. The special cable for a scraper as described in claim 1, characterized in that: The insulating layer is a rubber insulating layer.

6. The special cable for a scraper as described in claim 1, characterized in that: The sheath layer includes an outer sheath layer and an inner sheath layer. The inner sheath layer is located outside the tape layer and wraps the tape layer. The outer sheath layer is located outside the inner sheath layer and wraps the inner sheath layer.

7. The special cable for a scraper as claimed in claim 6, characterized in that: The sheath layer further includes an armor layer. The armor layer is located outside the inner sheath layer and wraps the inner sheath layer. The outer sheath layer is located outside the armor layer and wraps the armor layer.

8. The special cable for a scraper as described in claim 7, characterized in that: The armor layer is a steel wire part.

Images