CN112164495A - High gentle tensile cable and high tensile spring cable - Google Patents
High gentle tensile cable and high tensile spring cable Download PDFInfo
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- CN112164495A CN112164495A CN202011090467.1A CN202011090467A CN112164495A CN 112164495 A CN112164495 A CN 112164495A CN 202011090467 A CN202011090467 A CN 202011090467A CN 112164495 A CN112164495 A CN 112164495A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
- H01B7/0018—Strip or foil conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/06—Extensible conductors or cables, e.g. self-coiling cords
- H01B7/065—Extensible conductors or cables, e.g. self-coiling cords having the shape of an helix
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
Abstract
The invention discloses a high-flexibility tensile cable and a high-tensile spring cable. The high-flexibility tensile cable comprises an outer protective layer, a cable core tensile winding layer and a cable core which are sequentially arranged from outside to inside, and is characterized in that the cable core comprises a shielding core wire group, a non-shielding core wire group and a tensile filling unit; the shielding core wire group comprises a first bending-resistant stranded conductor, a first core wire tensile winding layer, a first insulating layer, an inner isolating layer, a winding shielding layer and an outer isolating layer; the non-shielding core wire group comprises a second bending-resistant stranded conductor, a second core wire tensile winding layer and a second insulating layer.
Description
Technical Field
The invention relates to a high-flexibility tensile cable and a high-tensile spring cable, and belongs to the technical field of cables.
Background
The spring cable is mainly used for connecting mobile electric appliances, and is required to have lasting elasticity, stable spiral structure and free expansion. In practical applications, if the spiral cable is subjected to a long-term tensile force exceeding its elastic deformation limit or is subjected to a large force to stretch the cable to a tight state, plastic deformation occurs, the original elasticity is lost, or the cable is damaged. There is a need for a spring cable that does not suffer damage to the conductors or insulation and jacket if stretched to straighten in use when subjected to large forces.
In order to meet the special requirements, a high tensile spring cable is needed, and the high tensile spring cable cannot be damaged under the condition that the common cable has several times of tensile force.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a high-flexibility tensile cable and a high-tensile spring cable.
The invention is realized by the following technical scheme:
a high-flexibility tensile cable comprises an outer protective layer, a cable core tensile winding layer and a cable core which are sequentially arranged from outside to inside, wherein the cable core comprises a shielding core wire group, a non-shielding core wire group and a tensile filling unit; the shielding core wire group comprises a first bending-resistant stranded conductor, a first core wire tensile winding layer, a first insulating layer, an inner isolating layer, a winding shielding layer and an outer isolating layer; the non-shielding core wire group comprises a second bending-resistant stranded conductor, a second core wire tensile winding layer and a second insulating layer.
According to the high-flexibility tensile cable, the outer protective layer is made of a high-elasticity thermoplastic material through extrusion molding; the high elasticity thermoplastic material may be flexible polyvinyl chloride, TPV elastomer, TPE elastomer or polyurethane.
A high gentle tensile cable, the tensile winding layer of cable core adopts the winding of stranded aramid fiber, and the winding direction is unanimous with cable core transposition direction, and winding density is greater than 95%.
According to the high-flexibility tensile cable, the first anti-bending stranded conductor and the second anti-bending stranded conductor are formed by concentrically twisting multiple strands of copper foil wires or tinned copper foil wires.
A high gentle tensile cable, first heart yearn tensile winding layer and second heart yearn tensile winding layer all adopt the winding of stranded aramid fiber, the winding direction is unanimous with anti-buckling stranded conductor stranding direction, winding density is greater than 90%.
A high gentle tensile cable, first insulating layer and second insulating layer all adopt the extrusion molding of elastomer insulating material to make, elastomer insulating material can be flexible polyvinyl chloride, TPV elastomer, TPE elastomer or silicon rubber.
The high-flexibility tensile cable is characterized in that the inner isolation layer is made of narrow thin polyester tape materials and is wrapped outside the first insulation layer, and a cover is overlapped for 15% -30%.
According to the high-flexibility tensile cable, the winding shielding layer is made of a multi-strand tinned copper foil wire material.
The high-flexibility tensile cable is characterized in that the outer isolation layer is made of narrow thin polyester tape materials and is wrapped outside the winding shielding layer, and the covering is 15% -30%.
The high-flexibility tensile cable is characterized in that the tensile filling unit adopts a plurality of strands of aramid yarns and is respectively filled in cable core gaps according to cable core combination.
The high-flexibility tensile cable is characterized in that the copper foil wire or the tinned copper foil wire is made of copper foil formed by pressing copper wires or tinned copper wires and is wrapped on fibers, and the fibers can be made of nylon, polyester, silk, aramid fiber and the like.
The high-flexibility tensile cable is obtained by winding and heating for shaping.
The invention achieves the following beneficial effects:
1. adopting copper foil wires to twist the conductor: the flexibility, the bending resistance and the tensile resistance of the conductor are improved, the service life of the conductor is greatly prolonged, and the overall flexibility, the bending resistance and the tensile resistance of the cable are improved;
2. adopting a core wire tensile winding layer: after insulation extrusion molding, the fiber surface layers of the insulation and core wire tensile winding layers are adhered together, when tensile force is applied, the tensile rate (more than 100%) of the insulation material and the tensile rate (more than 10%) of the conductor material are greater than the tensile rate (less than 6%) of the core wire tensile winding layer, so that the tensile force is concentrated on the core wire tensile winding layers, and the conductor and the insulation are basically not stressed; the tensile property of the core wire is improved, the flexibility of the core wire is not influenced, the influence on the outer diameter of a product is very small, and the problem that the conductor and the insulation are easy to bend and break in use is solved.
3. Adopting an elastomer insulating material: the flexibility of the cable is improved, and the later winding and shaping of the spring cable are facilitated;
4. the shielding core wire adopts an inner isolation layer and an outer isolation layer: the protection insulating core wire can not be damaged by the winding shielding layer in processing and use, the reliability of the cable is improved, and the service life of the cable is prolonged.
5. The shielding core wire is wound with a shielding layer by adopting a tinned copper foil wire: compared with the common braided shield, the braided shield has excellent flexibility, bending resistance and tensile property.
6. The cable core is filled in a tensile mode: the tensile property of the cable is greatly improved on the basis of not increasing the outer diameter of the cable and not reducing the flexibility of the cable.
7. Adopt cable core tensile winding layer: utilize good structural design to continue to reduce the cable core atress, after the outer jacket extrusion molding, outer jacket and cable core tensile winding layer fibre top layer adhesion are in the same place, when receiving the pulling force, and the preferential atress of cable core tensile winding layer protects outer jacket and cable core. Greater than 95% winding density, guaranteed that the outer jacket can not take place the adhesion with the cable core when the extrusion molding, saved the band isolation layer or the dusting isolation layer that need among the ordinary spring cable, can not influence the flexibility of cable.
8. Adopting thermoplastic elastomer materials as an outer protective layer: the cable is wholly soft, resistant buckling, easily stereotyped.
9. From the conductor to the cable core, a large amount of tensile materials are adopted: tensile materials are added, so that tensile force borne by the cable is greatly improved, and the tensile force is dozens of times that of the cable before use.
10. The cable of the invention has the following advantages:
(a) the cable is soft and bending-resistant;
(b) the cable has excellent tensile capacity;
(c) minimum bend radius: 3 times of the outer diameter of the cable;
(d) the service life of the cable is increased.
Drawings
Fig. 1 is a schematic structural view of a high-flexibility tensile cable.
Fig. 2 is a schematic structural view of a shielded cable core of the high-flexibility tensile cable.
Fig. 3 is a schematic structural view of an unshielded cable core of the high-flexibility tensile cable.
In the figure: 1. the cable comprises an outer protective layer, 2, a cable core tensile winding layer, 3, a cable core, 3-1, a shielding core group, 3-2, a non-shielding core group, 3-3, a tensile filling unit, 3-1-1, a first anti-bending stranded conductor, 3-1-2, a first core tensile winding layer, 3-1-3, a first insulating layer, 3-1-4, an inner insulating layer, 3-1-5, a winding shielding layer, 3-1-6, an outer insulating layer, 3-2-1, a second anti-bending stranded conductor, 3-2-2, a second core tensile winding layer, 3-2-3 and a second insulating layer.
Detailed Description
The invention is further described below. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in the figure, the high-tensile spring cable is finally obtained by winding and heating and shaping a high-flexibility tensile cable.
The high-flexibility tensile cable comprises an outer protective layer 1, a cable core tensile winding layer 2 and a cable core 3 from outside to inside;
in this embodiment, the outer sheath 1 is made of a thermoplastic polyurethane elastomer, and has good elasticity, mechanical properties, weather resistance, wear resistance, high strength, large resilience, and oil stain resistance. The thickness of the outer protective layer 1 is selected according to the outer diameter of the cable and is 1-2 mm.
In this embodiment, the tensile winding layer 2 of the cable core is wound by multiple strands of aramid fiber, the winding direction is consistent with the cable core twisting direction, and the winding density is greater than 95%. The unilateral thickness of the tensile winding layer 2 of the cable core is about 0.3 mm.
The cable core 3 consists of one or more shielding core wire groups 3-1, non-shielding core wire groups 3-2 and tensile filling units 3-3;
in this embodiment, the cable core 3 is composed of a shielding core set 3-1, 3 non-shielding core sets 3-2 and a plurality of tensile filling units 3-3.
The shielding core wire group 3-1 is sequentially divided into a first anti-bending stranded conductor 3-1-1, a first core wire tensile winding layer 3-1-2, a first insulating layer 3-1-3, an inner isolating layer 3-1-4, a winding shielding layer 3-1-5 and an outer isolating layer 3-1-6 from inside to outside;
in this embodiment, the first anti-bending stranded conductor 3-1-1 is formed by concentrically twisting 7 strands of copper 0.1 foil wires; the copper foil wire stranded conductor is adopted to improve the flexibility, bending resistance and tensile resistance of the conductor, the service life of the conductor is greatly prolonged, and the flexibility, bending resistance and tensile resistance of the whole cable are improved.
In the embodiment, the first core tensile winding layer 3-1-2 is wound by adopting a plurality of strands of aramid fibers, the winding direction is consistent with the twisting direction of the anti-bending twisted conductor, and the winding density is greater than 90%; after insulation extrusion molding, the fiber surface layers of the insulation and core wire tensile winding layers are adhered together, when tensile force is applied, the tensile rate (more than 100%) of the insulation material and the tensile rate (more than 10%) of the conductor material are greater than the tensile rate (less than 6%) of the core wire tensile winding layer, so that the tensile force is concentrated on the core wire tensile winding layers, and the conductor and the insulation are basically not stressed; the tensile property of the core wire is improved, the flexibility of the core wire is not influenced, and the influence on the outer diameter of a product is very small.
In this embodiment, the first insulating layer 3-1-3 is made of flexible polyvinyl chloride, so that the flexibility of the cable is improved, and the later-stage spring cable can be wound and shaped conveniently.
In the embodiment, the inner isolation layer 3-1-4 is made of a polyester tape material with the width of 4mm and the thickness of 0.025mm, and is wrapped outside the insulation layer, and a cover is covered by 15% -30%;
in the embodiment, the winding shielding layer 3-1-5 is made of 18 strands of tin-plated copper foil wires and is wrapped on the insulating core wire wrapped with the inner isolation layer 3-1-4. Compared with the common braided shield, the shielding layer wound by the tin-plated copper foil wire has excellent flexibility, bending resistance and tensile property.
In the embodiment, the outer isolation layer 3-1-6 is made of a polyester tape material with the width of 4mm and the thickness of 0.025mm, and is wrapped outside the winding shielding layer 3-1-5, and a cover is overlapped for 15% -30%; the inner isolation layer and the outer isolation layer are adopted, so that the insulated core wire is protected from being damaged by the winding shielding layer in the process of processing and use, the reliability of the cable is improved, and the service life of the cable is prolonged.
The non-shielding core wire group 3-2 is sequentially divided into a second anti-bending stranded conductor 3-2-1, a second core wire tensile winding layer 3-2-2 and a second insulating layer 3-2-3 from inside to outside;
in this embodiment, the second anti-bending stranded conductor 3-2-1 is formed by concentrically twisting 7 strands of copper 0.1 foil wires; the copper foil wire stranded conductor is adopted to improve the flexibility, bending resistance and tensile resistance of the conductor, the service life of the conductor is greatly prolonged, and the flexibility, bending resistance and tensile resistance of the whole cable are improved.
In the embodiment, the second core wire tensile winding layer 3-2-2 is wound by adopting a plurality of strands of aramid fibers, the winding direction is consistent with the twisting direction of the anti-bending twisted conductor, and the winding density is greater than 90%; after insulation extrusion molding, the fiber surface layers of the insulation and core wire tensile winding layers are adhered together, when tensile force is applied, the tensile rate (more than 100%) of the insulation material and the tensile rate (more than 10%) of the conductor material are greater than the tensile rate (less than 6%) of the core wire tensile winding layer, so that the tensile force is concentrated on the core wire tensile winding layers, and the conductor and the insulation are basically not stressed; the tensile property of the core wire is improved, the flexibility of the core wire is not influenced, and the influence on the outer diameter of a product is very small.
In this embodiment, the second insulating layer 3-21-3 is made of flexible polyvinyl chloride.
In the embodiment, the tensile filling units 3-3 adopt 5 strands of aramid yarns, and the aramid yarns are respectively filled in cable core gaps according to cable core combinations, so that the tensile property of the cable is greatly improved on the basis of not reducing the flexibility of the cable.
In this embodiment, the copper foil wire or the tin-plated copper foil wire is made by pressing a copper wire or a tin-plated copper wire and wrapping the copper foil or the tin-plated copper wire on the polyester fiber. From the conductor to the cable core, a large amount of tensile materials are adopted: tensile materials are added, so that tensile force borne by the cable is greatly improved, and the tensile force is dozens of times that of the cable before use.
In summary, the high tensile spring cable provided by the invention has the advantages that the flexibility, the bending resistance and the tensile property of the high tensile spring cable are greatly improved by selecting appropriate material combinations and process control.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A high-flexibility tensile cable comprises an outer protective layer, a cable core tensile winding layer and a cable core which are sequentially arranged from outside to inside, and is characterized in that the cable core comprises a shielding core wire group, a non-shielding core wire group and a tensile filling unit; the shielding core wire group comprises a first bending-resistant stranded conductor, a first core wire tensile winding layer, a first insulating layer, an inner isolating layer, a winding shielding layer and an outer isolating layer; the non-shielding core wire group comprises a second bending-resistant stranded conductor, a second core wire tensile winding layer and a second insulating layer.
2. The high flexibility tensile cable of claim 1, wherein said outer sheath is formed by extrusion of a highly elastic thermoplastic material; the high elasticity thermoplastic material may be flexible polyvinyl chloride, TPV elastomer, TPE elastomer or polyurethane.
3. The high-flexibility tensile cable according to claim 1, wherein the tensile winding layer of the cable core is wound by adopting a plurality of strands of aramid fiber, the winding direction is consistent with the stranding direction of the cable core, and the winding density is greater than 95%.
4. The high-flexibility tensile cable according to claim 1, wherein the first bending-resistant stranded conductor and the second bending-resistant stranded conductor are formed by concentrically twisting a plurality of copper foil wires or tin-plated copper foil wires.
5. The high-flexibility tensile cable according to claim 1, wherein the first core tensile winding layer and the second core tensile winding layer are wound by adopting a plurality of aramid yarns, the winding direction is consistent with the twisting direction of the bending-resistant stranded conductor, and the winding density is greater than 90%.
6. A highly flexible tension cable as claimed in claim 1, wherein the first and second insulating layers are made of an elastomer insulating material by extrusion molding, and the elastomer insulating material is flexible polyvinyl chloride, TPV elastomer, TPE elastomer or silicone rubber.
7. A high-flexibility tensile cable according to claim 1, wherein the inner insulating layer is made of narrow thin polyester tape material and is wrapped outside the first insulating layer, and the first insulating layer is covered by 15% -30%.
8. A highly flexible tension cable as claimed in claim 1, wherein the winding shield is made of a plurality of strands of tin-plated copper foil wire material.
9. A high-flexibility tensile cable according to claim 1, wherein the outer isolation layer is made of narrow thin polyester tape material and is wrapped outside the winding shielding layer, and a cover is covered on the outer isolation layer by 15% -30%.
10. A high tensile spring cable, which is obtained by winding and heating and shaping a high flexible tensile cable according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011090467.1A CN112164495A (en) | 2020-10-13 | 2020-10-13 | High gentle tensile cable and high tensile spring cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011090467.1A CN112164495A (en) | 2020-10-13 | 2020-10-13 | High gentle tensile cable and high tensile spring cable |
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| CN112164495A true CN112164495A (en) | 2021-01-01 |
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| CN202011090467.1A Pending CN112164495A (en) | 2020-10-13 | 2020-10-13 | High gentle tensile cable and high tensile spring cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242310A (en) * | 2021-12-20 | 2022-03-25 | 中科(湖南)先进轨道交通研究院有限公司 | Railway is with anti cable structure of buckling |
-
2020
- 2020-10-13 CN CN202011090467.1A patent/CN112164495A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242310A (en) * | 2021-12-20 | 2022-03-25 | 中科(湖南)先进轨道交通研究院有限公司 | Railway is with anti cable structure of buckling |
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