CN210167157U - Coaxial type mooring cable - Google Patents
Coaxial type mooring cable Download PDFInfo
- Publication number
- CN210167157U CN210167157U CN201920895663.2U CN201920895663U CN210167157U CN 210167157 U CN210167157 U CN 210167157U CN 201920895663 U CN201920895663 U CN 201920895663U CN 210167157 U CN210167157 U CN 210167157U
- Authority
- CN
- China
- Prior art keywords
- layer
- protective layer
- metal
- coaxial type
- mooring cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a coaxial type mooring cable includes from inside to outside in proper order: the optical fiber, the first protective layer, the fiber cushion layer, the metal armor layer, the second protective layer, the conductive lamination and the third protective layer; wherein, the fiber cushion layer is formed by polymer fibers; the metal armor layer is formed by winding and coating a metal wire pressing sheet; the conductive laminated layer comprises 2 sets of nested metal conductive layers and insulating dielectric layers; at least one of the first protective layer and the second protective layer is a light cross-linked ethylene polytetrafluoroethylene jacket layer. The coaxial mooring cable has the advantages of smaller outer diameter, lighter specific gravity and higher tensile and bending resistance.
Description
Technical Field
The utility model relates to a wire and cable technical field, concretely relates to coaxial type mooring cable.
Background
With the continuous development of science and technology and the demands of various fields, the demands of unmanned aerial vehicles and low-altitude aircrafts with different purposes are increasing day by day. Can be limited by the development of battery technology, the conventional unmanned aerial vehicle that relies on the battery as the energy, the longest duration operating time often does not exceed an hour. At the same time, higher flying means longer length and heavier weight of the cable, which is more likely to be damaged by lightning strikes or the like.
Therefore, the tethered unmanned aerial vehicle is produced, long-time high-altitude remote detection can be realized, and the air staying time can reach several months. This kind of unmanned aerial vehicle passes through the photoelectricity hybrid cable transmission electric energy and carries out data transmission, makes unmanned aerial vehicle can not receive the electric energy restriction and last work for a long time.
Along with more and more uses, uncertain factors such as the place, environment, weather of carrying out the flight mission are more and more demanding, the development and the use of unmanned aerial vehicle have been restricted greatly to current material and cable structure, and the urgent need is a photoelectricity hybrid cable that can stably and continuously work under adaptable adverse circumstances.
The existing mooring cable mainly has the following technical problems:
1) the total weight of the cable is large; 2) insufficient tensile strength; 3) the insulation protection is not good.
SUMMERY OF THE UTILITY MODEL
In order to overcome the deficiency of the prior art, the utility model aims to provide a coaxial type mooring cable of external diameter relative reduction, light, it is wherein with weaving into the sheathed tube form with the wire of electric unit with the cladding of optical fiber unit to keep apart with light polymer material, effectively reduced the inseparable degree of conductor monofilament, on the basis of guaranteeing the conductivity, improved holistic texture performance of cable and mechanical properties.
The purpose of the utility model is realized by adopting the following technical scheme:
a coaxial type captive cable comprising, in order from the inside out: the optical fiber, the first protective layer, the fiber cushion layer, the metal armor layer, the second protective layer, the conductive lamination and the third protective layer; wherein the metal armor layer is formed by winding and coating a metal wire pressing sheet; the conductive laminated layer comprises 2 sets of nested metal conductive layers and insulating dielectric layers; at least one of the first protective layer and the second protective layer is a light cross-linked ethylene polytetrafluoroethylene jacket layer.
The first protective layer is used as a material for coating and protecting the optical fiber and is tightly sleeved on the optical fiber to play the roles of insulation and buffering; the fiber cushion layer is used as an axial reinforcing auxiliary component, so that the tensile resistance of the cable can be effectively improved; the metal armor layer is a metal wire braid layer, has the axial and radial dual strengthening functions, and can effectively improve the tensile endurance and the bending resistance of the cable under external force; the second protective layer effectively isolates the weak current action between the metal armor layer and the metal conductive layer and plays roles of buffering and insulation at the same time; the metal conducting layer and the insulating dielectric layer are overlapped, so that the overall outer diameter of the cable is effectively reduced, and the conductivity is improved.
Furthermore, the first protective layer and the second protective layer are both light cross-linked ethylene polytetrafluoroethylene sleeve layers, and the thickness of the first protective layer is 0.08-0.25 mm; the thickness of the second protective layer is 0.12-0.30 mm.
Further, the third protective layer is an aramid fiber braided layer, the thickness of the aramid fiber is 3000-3500D, the number of braided ingots is 72-144, and the braiding density is 135-185%.
Further, the fiber cushion layer is formed by encircling 3-9 aramid fibers with the specification of 500-1500D under the paying-off tension of 5-35N.
Furthermore, the metal armor layer is formed by spirally winding a galvanized stainless steel wire pressing sheet on the metal armor layer.
Furthermore, the metal armor layer is formed by flattening galvanized stainless steel wires with the outer diameter of 0.15-0.45mm and wrapping the galvanized stainless steel wires at a helix angle of 25-60 degrees, and the galvanized stainless steel wires are flattened into a sheet shape with the width of 0.3-1.5 mm.
Furthermore, the metal conducting layer is formed by weaving metal wires; the insulating dielectric layer is a light cross-linked ethylene polytetrafluoroethylene material jacket layer.
Further, the thickness of the insulating dielectric layer is 0.15-0.35 mm.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the coaxial mooring cable provided by the utility model has the advantages that the electric unit is sleeved outside the optical unit in a coaxial telescoping mode, so that the outer diameter of the cable is effectively reduced; the tensile resistance and the bending resistance of the cable are effectively improved in a mode of axial reinforcement of the fiber cushion layer and radial reinforcement of the metal armor layer; the light cross-linked ethylene polytetrafluoroethylene sheath layer can effectively reduce the overall weight of the cable and the mutual interference between the optical unit and the electrical unit.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In fig. 1, the respective reference numerals: 1. an optical fiber; 2. a first protective layer; 3. a fibrous blanket; 4. a metal armor layer; 5. a second protective layer; 6. a metal conductive layer; 7. an insulating dielectric layer; 8. and a third protective layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, and it should be noted that any combination of the following described embodiments or technical features can be used to form a new embodiment without conflict. The materials used in this example are all commercially available.
The utility model provides a coaxial type mooring cable, as shown in figure 1, include from inside to outside in proper order: the optical fiber protection device comprises an optical fiber 1, a first protective layer 2, a fiber cushion layer 3, a metal armor layer 4, a second protective layer 5, a conductive lamination layer and a third protective layer 8; wherein, the metal armor layer 4 is formed by winding and coating a metal wire pressed sheet; the conductive stack comprises 2 sets of nested metallic conductive layers 6 and insulating dielectric layers 7; at least one of the first protective layer 2 and the second protective layer 5 is a light cross-linked ethylene polytetrafluoroethylene jacket layer.
The coaxial type mooring cable is characterized in that the electric unit is sleeved outside the optical unit in a coaxial and telescopic mode, so that the outer diameter of the cable is effectively reduced; the tensile resistance and the bending resistance of the cable are effectively improved in a mode of axial reinforcement of the fiber cushion layer 3 and radial reinforcement of the metal armor layer 4; the use of the light cross-linked ethylene polytetrafluoroethylene sheath can effectively reduce the overall weight of the cable and the mutual interference between the optical unit and the electrical unit.
Example 1:
a coaxial type captive cable comprising, in order from the inside out: the optical fiber protection device comprises an optical fiber 1, a first protection layer 2 formed by light cross-linked ethylene polytetrafluoroethylene (XETFE), a fiber cushion layer 3 formed by aramid fiber yarns in a surrounding manner, a metal armor layer 4 formed by flattening and spirally wrapping galvanized stainless steel wires, a second protection layer 5 formed by light cross-linked ethylene polytetrafluoroethylene (XETFE), a conductive lamination layer and a third protection layer 8 woven by aramid fiber yarns;
the conductive lamination comprises 2 groups of metal conductive layers 6 and insulating dielectric layers 7, wherein the metal conductive layers 6 are formed by weaving galvanized metal wires by a multi-spindle weaving machine; the material of the insulating dielectric layer 7 is light cross-linked ethylene polytetrafluoroethylene (XETFE).
The preparation method comprises the following steps:
1) preparation of the first protective layer 2: extruding an XETFE film layer with the thickness of 0.25mm on the surface of a G657D single-mode bending insensitive optical fiber coated with high-temperature resistant polyimide with the extrusion tension of 20N, and curing with the irradiation intensity of 13Mrad to obtain a first protective layer 2;
2) preparing a fibrous blanket 3: placing the cable obtained in the step 1) on a wire placing frame, adding aramid fibers, wherein the number of the aramid fibers is 6, the specification is 900D, the wire placing tension range is adjusted to be 35N, and enclosing to obtain a fiber cushion layer 3;
3) preparing a metal armor layer 4: extruding a galvanized stainless steel wire with the outer diameter of 0.25mm into a flat belt, spirally wrapping the flat belt on the fiber cushion layer 3, wherein the helix angle is 60 degrees, and the helix interval is 0.6mm, so as to obtain a metal armor layer 4;
4) preparing a second protective layer 5: extruding an XETFE film layer with the thickness of 0.30mm on the cable obtained in the step 3) with the extrusion tension of 20N, and curing with the illumination intensity of 15Mrad to obtain a second protective layer 5;
5) preparing a conductive laminated layer: using a multi-spindle number braider with the spindle number of 144 spindles to braid zinc-plated stainless steel wires with the braiding density of 180 percent to obtain a sectional area of 0.5mm2A metal conductive layer 6; extruding an XETFE film layer with the thickness of 0.35mm on the metal conducting layer 6, and curing the XETFE film layer with the irradiation intensity of 18Mrad to obtain an insulating dielectric layer 7; then weaving a metal conducting layer 6 and extruding an insulating dielectric layer 7 on the insulating dielectric layer 7 in sequence;
6) preparation of the third protective layer 8: and (3) knitting aramid fiber yarns with the knitting density of 185% by using a multi-spindle-number knitting machine with the spindle number of 144 spindles to obtain a third protective layer 8, so that the coaxial mooring cable is obtained.
Example 2:
a coaxial type captive cable comprising, in order from the inside out: the optical fiber protection device comprises an optical fiber 1, a first protection layer 2 formed by light cross-linked ethylene polytetrafluoroethylene (XETFE), a fiber cushion layer 3 formed by aramid fiber yarns in a surrounding manner, a metal armor layer 4 formed by flattening and spirally wrapping galvanized stainless steel wires, a second protection layer 5 formed by light cross-linked ethylene polytetrafluoroethylene (XETFE), a conductive lamination layer and a third protection layer 8 woven by aramid fiber yarns;
the conductive lamination comprises 2 groups of metal conductive layers 6 and insulating dielectric layers 7, wherein the metal conductive layers 6 are formed by weaving galvanized metal wires by a multi-spindle weaving machine; the material of the insulating dielectric layer 7 is light cross-linked ethylene polytetrafluoroethylene (XETFE).
The preparation method comprises the following steps:
1) preparation of the first protective layer 2: extruding an XETFE film layer with the thickness of 0.15mm on the surface of a G657D single-mode bending insensitive optical fiber coated with high-temperature resistant polyimide with the extrusion tension of 10N, and curing with the irradiation intensity of 10Mrad to obtain a first protective layer 2;
2) preparing a fibrous blanket 3: placing the cable obtained in the step 1) on a wire placing frame, adding aramid fibers, wherein the number of the aramid fibers is 3, the specification is 1500D, the wire placing tension range is adjusted to be 25N, and a fiber cushion layer 3 is obtained through enclosing;
3) preparing a metal armor layer 4: extruding a galvanized stainless steel wire with the outer diameter of 0.15mm into a flat belt, spirally wrapping the flat belt on the fiber cushion layer 3, wherein the helix angle is 45 degrees, and the helix interval is 0.2mm, so as to obtain a metal armor layer 4;
4) preparing a second protective layer 5: extruding an XETFE film layer with the thickness of 0.20mm on the cable obtained in the step 3) with the extrusion tension of 10N, and curing with the illumination intensity of 12Mrad to obtain a second protective layer 5;
5) preparing a conductive laminated layer: using a multi-spindle number braiding machine with the spindle number of 120 spindles, adopting galvanized stainless steel wires to braid a braiding density of 150 percent to obtain a sectional area of 0.5mm2A metal conductive layer 6; extruding an XETFE film layer with the thickness of 0.30mm on the metal conducting layer 6, and curing the XETFE film layer with the irradiation intensity of 15Mrad to obtain an insulating dielectric layer 7; then weaving a metal conducting layer 6 and extruding an insulating dielectric layer 7 on the insulating dielectric layer 7 in sequence;
6) preparation of the third protective layer 8: and (3) knitting aramid fiber yarns with the knitting density of 175% by using a multi-spindle-number knitting machine with the spindle number of 144 spindles to obtain a third protective layer 8, so that the coaxial mooring cable is obtained.
Example 3:
a coaxial type captive cable comprising, in order from the inside out: the optical fiber protection device comprises an optical fiber 1, a first protection layer 2 formed by light cross-linked ethylene polytetrafluoroethylene (XETFE), a fiber cushion layer 3 formed by aramid fiber yarns in a surrounding manner, a metal armor layer 4 formed by flattening and spirally wrapping galvanized stainless steel wires, a second protection layer 5 formed by light cross-linked ethylene polytetrafluoroethylene (XETFE), a conductive lamination layer and a third protection layer 8 woven by aramid fiber yarns;
the conductive lamination comprises 2 groups of metal conductive layers 6 and insulating dielectric layers 7, wherein the metal conductive layers 6 are formed by weaving galvanized metal wires by a multi-spindle weaving machine; the material of the insulating dielectric layer 7 is light cross-linked ethylene polytetrafluoroethylene (XETFE).
The preparation method comprises the following steps:
1) preparation of the first protective layer 2: extruding an XETFE film layer with the thickness of 0.08mm on the surface of a G657D single-mode bending insensitive optical fiber coated with high-temperature resistant polyimide with the extrusion tension of 5N, and curing with the irradiation intensity of 8Mrad to obtain a first protective layer 2;
2) preparing a fibrous blanket 3: placing the cable obtained in the step 1) on a wire placing frame, adding aramid fibers, wherein the number of the aramid fibers is 9, the specification is 500D, the wire placing tension range is adjusted to be 5N, and enclosing to obtain a fiber cushion layer 3;
3) preparing a metal armor layer 4: extruding a galvanized stainless steel wire with the outer diameter of 0.45mm into a flat belt, spirally wrapping the flat belt on the fiber cushion layer 3, wherein the helix angle is 25 degrees, and the helix interval is 0.6mm, so as to obtain a metal armor layer 4;
4) preparing a second protective layer 5: extruding an XETFE film layer with the thickness of 0.12mm on the cable obtained in the step 3) with the extrusion tension of 5N, and curing with the illumination intensity of 9Mrad to obtain a second protective layer 5;
5) preparing a conductive laminated layer: using a multi-spindle number braiding machine with 64 spindles, adopting galvanized stainless steel wires to braid a braiding density of 170%, and obtaining a cross section of 0.5mm2A metal conductive layer 6; extruding an XETFE film layer with the thickness of 0.15mm on the metal conducting layer 6, and curing the XETFE film layer with the irradiation intensity of 10Mrad to obtain an insulating dielectric layer 7; then weaving a metal conducting layer 6 and extruding an insulating dielectric layer 7 on the insulating dielectric layer 7 in sequence;
6) preparation of the third protective layer 8: and (3) knitting aramid fiber yarns with the knitting density of 135% by using a multi-spindle-number knitting machine with the spindle number of 72 spindles to obtain a third protective layer 8, so that the coaxial mooring cable is obtained.
Comparative example 1:
a cable comprises a cable component and a polyurethane protective layer, wherein the cable component is formed by stranding 1 optical fiber unit, 2 electric units and 3 1500D aramid yarns and has an outer diameter of 6 mm; the optical fiber unit sequentially comprises an optical fiber, a nylon tight-sleeve layer, a fiber cushion layer and a metal armor layer from inside to outside; the electric unit is an electric wire coated with a TPE material insulating layer, and the conductor is 1.0mm2The insulating outer diameter is 2.8 mm;
the method for preparing the cable comprises the following steps:
1) preparing an optical fiber unit: selecting a normal-temperature optical fiber with bending insensitivity thickness of 0.9 mm: 1 extruding a nylon tight-loop layer with the thickness range of 0.3mm by using nylon, and encircling by using 4 pieces of 1200D aramid fiber yarns to obtain a fiber cushion layer; winding a galvanized stainless steel wire with the outer diameter of 0.35mm in a weaving mode to obtain a metal armor layer; obtaining an optical fiber unit with an outer diameter of about 2.3 mm;
2) preparing an electric unit: two wires with different color TPE material insulating layers are used as an electric unit, the conductor of the electric unit is 1.0mm2, and the outer diameter of the electric unit is 2.8 mm;
3) stranding: stranding and cabling the power taking unit, the optical fiber unit and 3 pieces of 1500D aramid yarn to obtain a cable assembly with the outer diameter of 6 mm;
4) preparing a polyurethane protective layer: the abrasion resistant polyurethane was extruded into a sheath with a thickness of 1.0mm to give a cable with an outer diameter of 8 mm.
Performance detection and Effect evaluation
1. Apparent detection
The cables obtained in examples 1 to 3 and comparative example 1 were subjected to a performance appearance test, and the results are shown in the following table:
TABLE 1 apparent detection
As is clear from table 1, the coaxial type mooring cable obtained in the present application has an outer diameter of 4.5mm or less as compared with comparative example 1, and has an outer diameter reduced by 40% or more as compared with a twisted type cable of equivalent performance; meanwhile, the weight is relatively reduced by 40 percent, and the light and small coaxial mooring cable is obtained.
2. Temperature resistant grade
The temperature resistance ratings of the cables obtained in examples 1-3 and comparative example 1 are shown in the following table:
TABLE 2 temperature resistance rating
| Item | Example 1 | Example 2 | Example 3 | Comparative example 1 |
| Temperature resistance grade C | 200 | 200 | 200 | 80 |
Can know by table 2, because the utility model discloses the mode of producing with metallic conduction layer and insulating dielectric layer coincide mutually has the thermal diffusivity of preferred between metallic conduction layer and the insulating dielectric layer, and optic fibre is put in the core simultaneously to can effectively improve the high temperature resistance of cable, for traditional transposition type cable, it has the temperature resistance of preferred.
3. Mechanical strength
The cables obtained in examples 1 to 3 and comparative example 1 were subjected to tensile and bending tests, the results of which are shown in the following table:
TABLE 3 mechanical Strength
As shown in table 3, the cable obtained in the present application has a strong resistance to axial tension, a tensile strength nearly 2 times that of comparative example 1, and a good bending resistance, and no damage times nearly 3 times that of comparative example 1.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (8)
1. A coaxial type mooring cable characterized by comprising, in order from the inside to the outside: the optical fiber, the first protective layer, the fiber cushion layer, the metal armor layer, the second protective layer, the conductive lamination and the third protective layer; wherein, the fiber cushion layer is formed by polymer fibers; the metal armor layer is formed by winding and coating a metal wire pressing sheet; the conductive laminated layer comprises 2 sets of nested metal conductive layers and insulating dielectric layers; at least one of the first protective layer and the second protective layer is a light cross-linked ethylene polytetrafluoroethylene jacket layer.
2. The coaxial type captive cable of claim 1, wherein the first protective layer and the second protective layer are both lightweight cross-linked ethylene-Polytetrafluoroethylene (PTFE) jacket layers, the first protective layer having a thickness of 0.08-0.25 mm; the thickness of the second protective layer is 0.12-0.30 mm.
3. The coaxial type mooring cable of claim 1, wherein the third protective layer is an aramid fiber braid layer, the number of braiding ingots is 72-144 ingots, and the braiding density is 135-185%.
4. The coaxial type mooring cable of claim 1, wherein the fiber mat is surrounded by 3-9 aramid filaments of 500-1500D gauge at a pay-off tension of 5-35N.
5. The coaxial type mooring cable of claim 1, wherein the metallic armor layer is formed by spirally wrapping a zinc-plated stainless steel wire preform.
6. The coaxial type mooring cable of claim 1, wherein the metallic armor layer is a galvanized stainless steel wire with an outer diameter of 0.15-0.45mm, flattened and wrapped at a helix angle of 25-60 °.
7. The coaxial type mooring cable of claim 1, wherein the metallic conductive layer is braided from metal wires; the insulating dielectric layer is a light cross-linked ethylene polytetrafluoroethylene material jacket layer.
8. The coaxial type mooring cable of claim 7, wherein the insulating dielectric layer has a thickness of 0.15-0.35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920895663.2U CN210167157U (en) | 2019-06-14 | 2019-06-14 | Coaxial type mooring cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920895663.2U CN210167157U (en) | 2019-06-14 | 2019-06-14 | Coaxial type mooring cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210167157U true CN210167157U (en) | 2020-03-20 |
Family
ID=70171786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920895663.2U Active CN210167157U (en) | 2019-06-14 | 2019-06-14 | Coaxial type mooring cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210167157U (en) |
-
2019
- 2019-06-14 CN CN201920895663.2U patent/CN210167157U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5351642B2 (en) | cable | |
| CN104916369B (en) | Photoelectrical composite torsion-resistant medium-voltage wind power cable and method for manufacturing the same | |
| US9378865B2 (en) | High strength tether for transmitting power and communications signals | |
| CN104167251B (en) | High-voltage connecting cable provided with ultra-soft aluminum conductor and used in electric automobile and manufacturing method of high-voltage connecting cable | |
| CN104183311A (en) | High-voltage connecting cable with ultra-soft aluminum conductor and for interior of electric automobile and manufacturing method | |
| CN106558368B (en) | A kind of electric car charging cable and preparation method thereof | |
| CN112185614B (en) | Double-layer sheath spiral cable and manufacturing process thereof | |
| CN210167157U (en) | Coaxial type mooring cable | |
| JP5821892B2 (en) | Multi-core cable and manufacturing method thereof | |
| CN203351248U (en) | Flexible light-duty cable insulated by PTFE and PI composite | |
| RU170627U1 (en) | FLEXIBLE CARRYING CABLE | |
| CN214476484U (en) | Vibration-resistant flexible high-voltage cable used in new energy vehicle | |
| CN204740883U (en) | Flat cable for aerospace | |
| CN201465615U (en) | Wind power cable | |
| CN213519358U (en) | Special-shaped aluminum alloy flexible conductor two-core photovoltaic cable | |
| US20210304918A1 (en) | Insulated electrical cable | |
| CN208061681U (en) | A kind of Cold-proof oilproof high tensile control instrument cable | |
| CN112509745A (en) | Light photoelectric composite cable and manufacturing method thereof | |
| RU90253U1 (en) | ELECTRICAL WIRE OR CABLE (OPTIONS) | |
| CN105185440A (en) | Light-weight and fatigue-resistant flexible cable of braided shielding transponder | |
| CN210167152U (en) | High-strength mooring cable | |
| CN110931170A (en) | Manufacturing method of air-cooled cable | |
| CN205541990U (en) | Insulating and band -armored cable of EP rubbers | |
| CN207541983U (en) | A kind of light-duty space flight cable of ultra-fine tension | |
| CN219916754U (en) | Small-diameter lightweight foamed insulating coaxial cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |