Anti-twisting steel wire reel cable

Abstract

The utility model provides an anti-twisting steel wire reel cable, which comprises a fixed cushion core positioned in the center and a plurality of wire cores uniformly distributed around the fixed cushion core, an elastic inner protective layer is filled in a gap between a fiber core and the fixed cushion core, an anti-twisting layer is arranged on the outer side of each wire core, and an outer protective layer is arranged on the outer side of each anti-twisting layer; wherein the anti-torsion layer comprises a supporting layer, a plurality of anti-torsion protrusions are evenly arranged on the inner side of the supporting layer, and each anti-torsion protrusion is located between every two adjacent wire cores and is tangent to the outer side of the corresponding wire core; and gaps between the anti-torsion bulges and the wire cores are also filled with the elastomer inner protective layers. The anti-torsion steel wire reel cable has the advantages of scientific design and good anti-torsion effect.

Description

Technical Field

[0001] The utility model relates to a crane cable, in particular to an anti-twisting steel wire drum cable. Background Art

[0002] Drum cables mainly refer to cables used in reels, transport machinery and conveyors. Drum cables can be installed in dry or humid indoor or humid industrial environments, and can also be used for outdoor installation. Such cables often require a small bending radius during use. The bending radius of the drum cable depends on the cable structure and outer diameter, the cable itself and its installation and use methods. In most cases, drum cables can be installed in high temperature and chemically corrosive environments. The main structure of the drum cable usually includes a plurality of finely twisted tinned copper wire conductors, natural or synthetic rubber insulation, chloroprene rubber outer sheath, etc. At present, there are many types of drum cables on the market, such as: a drum cable disclosed in announcement number CN204680418U, a drum cable disclosed in announcement number CN209708668U, and a drum cable disclosed in announcement number CN208225560U. Most of these drum cables are committed to improving the bending resistance of the cable. Although announcement number CN204680418U mentions the anti-twisting performance, it is only a simple fiber braiding layer, and the anti-twisting performance is limited.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0004] The utility model aims to provide a twist-resistant steel wire drum cable in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A torsion-resistant steel wire drum cable comprises a fixed cushion core located in the center and a plurality of wire cores evenly distributed around the fixed cushion core, the gap between the fiber core and the fixed cushion core is filled with an elastic inner sheath, an anti-twist layer is arranged on the outer side of each wire core, and an outer protective layer is arranged on the outer side of the anti-twist layer; wherein the anti-twist layer comprises a supporting layer, a plurality of anti-twist protrusions are evenly arranged on the inner side of the supporting layer, each anti-twist protrusion is located between two adjacent wire cores and tangent to the outer side of the wire core; the gap between the anti-twist protrusion and the wire core is also filled with the elastic inner sheath.

[0007] The wire core consists of an inner conductor of stranded steel and soft copper wires in the center and an outer insulating layer.

[0008] The outer protective layer is a TPU outer protective layer.

[0009] The insulation layer is PVC insulation layer.

[0010] The inner sheath of the elastic body is a polyurethane layer.

[0011] The supporting layer is a high-strength fiber braided layer, and the anti-torsion protrusions are memory alloy.

[0012] Compared with the prior art, the utility model has the beneficial effect that the utility model provides a torsion-resistant steel wire drum cable that combines a support layer and an anti-torsion protrusion, and the anti-torsion protrusion is close to the wire core, effectively improving the anti-torsion effect, and is suitable for drum cables. At the same time, the anti-torsion protrusion can be made of memory alloy, which improves the tensile performance of the cable on the basis of anti-torsion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] In the figure: 1. Fixed cushion core; 2. Wire core; 21. Steel wire; 22. Soft copper wire stranded conductor; 23. Insulation layer; 3. Elastomer inner sheath; 4. Anti-twist layer; 41. Support layer; 42. Anti-twist protrusion; 5. Outer protective layer. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0016] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. "Installed", "provided with", "connected", etc. can adopt conventional means in the prior art, such as: integral setting, snap-on installation, welding connection, adhesive connection, bolt connection, etc. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances, and suitable connection, setting or installation methods can be selected in the prior art.

[0017] like Figure 1 As shown, a torsion-resistant steel wire 21 drum cable comprises a fixed cushion core 1 located in the center and a plurality of cores 2 evenly distributed around the fixed cushion core 1, the gap between the fiber core and the fixed cushion core 1 is filled with an elastomeric inner sheath 3, an anti-twist layer 4 is arranged on the outer side of each core 2, and an outer protective layer 5 is arranged on the outer side of the anti-twist layer 4; wherein, the anti-twist layer 4 comprises a supporting layer 41, a plurality of anti-twist protrusions 42 are evenly arranged on the inner side of the supporting layer 41, each anti-twist protrusion 42 is located between two adjacent cores 2 and is tangent to the outer side of the core 2; the gap between the anti-twist protrusion 42 and the core 2 is also filled with the elastomeric inner sheath 3.

[0018] The anti-twisting steel wire drum cable combines a support layer and an anti-twisting protrusion, and the anti-twisting protrusion is close to the wire core, effectively improving the anti-twisting effect, and is suitable for use in drum cables. Specifically, the elastic inner sheath, the anti-twisting layer, and the fixed pad core can be made of common materials, such as rubber, polyurethane, PVC, etc.

[0019] In one embodiment, the wire core 2 includes an inner steel wire 21 and a soft copper wire stranded conductor 22 in the center and an outer insulating layer 23. The insulating layer can be made of common materials, such as rubber, polyurethane, PVC, etc.

[0020] In one embodiment, the outer protective layer 5 is a TPU outer protective layer. TPU refers to thermoplastic polyurethane material.

[0021] In one embodiment, the insulating layer 23 is a PVC insulating layer 23. PVC refers to a common polyvinyl chloride material.

[0022] In one embodiment, the elastic inner sheath 3 is a polyurethane layer.

[0023] In one embodiment, the support layer 41 is a high-strength fiber braided layer, and the anti-torsion protrusion 42 is a memory alloy. Specifically, the high-strength fiber braided layer can be made of high-strength Kevlar fiber wire, and the memory alloy can be made of common memory aluminum alloy. The support layer is woven from high-strength Kevlar fiber wire, and the anti-torsion protrusion is made of memory alloy wire or memory alloy wire and high-strength Kevlar fiber wire.

[0024] The above embodiments can be combined with each other.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A twist-resistant steel wire drum cable, characterized in that: It includes a fixed cushion core located in the center and a plurality of wire cores evenly distributed around the fixed cushion core, the gap between the fiber core and the fixed cushion core is filled with an elastic inner sheath, an anti-twisting layer is arranged on the outside of each wire core, and an outer protective layer is arranged on the outside of the anti-twisting layer; wherein the anti-twisting layer includes a supporting layer, a plurality of anti-twisting protrusions are evenly arranged on the inner side of the supporting layer, each anti-twisting protrusion is located between two adjacent wire cores and tangent to the outer side of the wire core; the gap between the anti-twisting protrusion and the wire core is also filled with the elastic inner sheath.

2. The twist-resistant steel wire drum cable according to claim 1, characterized in that: The wire core consists of an inner conductor of stranded steel and soft copper wires in the center and an outer insulating layer.

3. The twist-resistant steel wire drum cable according to claim 2, characterized in that: The outer protective layer is a TPU outer protective layer.

4. The twist-resistant steel wire drum cable according to claim 3, characterized in that: The insulation layer is PVC insulation layer.

5. The twist-resistant steel wire drum cable according to claim 4, characterized in that: The inner sheath of the elastic body is a polyurethane layer.

6. The twist-resistant steel wire drum cable according to claim 5, characterized in that: The supporting layer is a high-strength fiber braided layer, and the anti-torsion protrusions are memory alloy.

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