CN220650949U - Novel special bending-resistant optical cable and photoelectric composite cable with same - Google Patents
Novel special bending-resistant optical cable and photoelectric composite cable with same Download PDFInfo
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- CN220650949U CN220650949U CN202321738341.XU CN202321738341U CN220650949U CN 220650949 U CN220650949 U CN 220650949U CN 202321738341 U CN202321738341 U CN 202321738341U CN 220650949 U CN220650949 U CN 220650949U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 35
- 238000005452 bending Methods 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 239000000835 fiber Substances 0.000 claims abstract description 35
- 239000013307 optical fiber Substances 0.000 claims abstract description 18
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 9
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000002787 reinforcement Effects 0.000 claims abstract description 6
- LXEJRKJRKIFVNY-UHFFFAOYSA-N terephthaloyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C=C1 LXEJRKJRKIFVNY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002674 ointment Substances 0.000 claims abstract description 5
- 238000005253 cladding Methods 0.000 claims description 17
- 229920002313 fluoropolymer Polymers 0.000 claims description 6
- 239000004642 Polyimide Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000009940 knitting Methods 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000006068 polycondensation reaction Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 23
- 239000003245 coal Substances 0.000 description 5
- 238000005065 mining Methods 0.000 description 4
- 238000009941 weaving Methods 0.000 description 3
- 229920006231 aramid fiber Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
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Abstract
The utility model discloses a novel special bending-resistant optical cable and an optical-electrical composite cable with the same, and relates to the technical field of optical cables, wherein the optical cable comprises 2-12 core tightly-wrapped colored optical fibers, filling ointment, loose tubes, a tensile fiber layer, a sheath layer and a fiber reinforcing layer from inside to outside; wherein, the tensile fiber layer and the fiber reinforcement layer are both made of para-aramid fiber woven structures which are formed by reducing p-phenylenediamine and terephthaloyl chloride. The utility model can resist the environment temperature of 200 ℃ for a long time, has the characteristics of extrusion resistance, bending resistance, tensile resistance and the like, and is particularly suitable for the photoelectric composite cable for the mobile field using the rubber sheath and the rapid welding of the optical cable.
Description
Technical Field
The utility model relates to the technical field of optical cables, in particular to a novel special bending-resistant optical cable and an optical-electrical composite cable with the same.
Background
The main reasons for preventing the coal mine from using the photoelectric composite cable of the coal mining machine at present are poor reliability of the optical cable, and the reasons mainly include two aspects, namely, in the cable manufacturing process, because the coal mining machine cable needs to be used in a steam vulcanization pipeline when a sheath is processed, the temperature in the pipeline can reach 180-200 ℃, the pressure is high by 1.0-1.6 MPa, the time is 0.5-1.5 h, the common optical cable is deformed and an optical fiber coating layer falls off in the temperature and pressure environment, and the optical fiber transmission performance is greatly reduced; on the other hand comes from the use in-process, coal-winning machine cable frequently takes place bending, pulls, extrudees in the use, and ordinary optical cable is very easily to take place the optic fibre fracture phenomenon in the use owing to not bending resistance, extrusion resistance are relatively poor, in case the optical cable takes place the fracture, and photoelectric composite cable just means to become invalid. At present, no optical cable which can be suitable for manufacturing the photoelectric composite cable of the coal mining machine exists in the market.
The applicant in 2019 claims a special optical cable (authorized publication number CN 210626730U) with bending resistance, temperature resistance, tensile resistance and compression resistance, which provides an optical cable structure for solving the problems, mainly solves the defects of the optical cable in coping with bending, dragging, extrusion and the like by arranging a first armor layer and a second armor layer outside a cable core, thereby avoiding the optical cable from breaking and meeting the conditions in the vulcanization process of the optical cable through a temperature-resistant tight cladding. However, the applicant finds that in the practical laying and installing process, the double-armor structure of the optical cable has better mechanical performance, but the underground space is limited, so that workers are difficult to cut off the armor layer when peeling the head, the optical fiber is easy to damage, and the installing convenience is poor.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a novel special bending-resistant optical cable which can resist the environment temperature of 200 ℃ for a long time and is particularly suitable for welding underground photoelectric composite cables of coal mining machines.
In order to solve the problems, the utility model adopts the following technical scheme:
the utility model provides a novel special bending-resistant optical cable, which comprises 2-12 core tightly-packed colored optical fibers, filling ointment, loose tubes, a tensile fiber layer, a sheath layer and a fiber reinforcement layer from inside to outside;
wherein, the tensile fiber layer and the fiber reinforcement layer are both made of para-aramid fiber woven structures which are formed by reducing p-phenylenediamine and terephthaloyl chloride.
Preferably, the 2-12 core tight cladding colored optical fiber consists of a G657A2 type single mode optical fiber and a temperature resistant tight cladding wrapping the same; the temperature-resistant tight cladding is made of polyimide or fluoroplastic, and the outer diameter of the temperature-resistant tight cladding is 0.6+/-0.1 mm.
Preferably, the para-aramid fiber weaving structure is formed by intersecting and weaving aramid fiber reinforcing fiber wires stranded in the right direction, and the weaving pitch is 10-20mm.
Preferably, the outer diameter of the fiber reinforced layer is 3.7±0.3mm.
The utility model also provides an optical-electrical composite cable, which comprises an optical-electrical composite cable core and an outer sheath structure, wherein the optical-electrical composite cable core is the novel special bending-resistant optical cable, and the outer sheath structure comprises a steel wire braid layer.
The utility model has the beneficial effects that:
the tight-cladding colored optical fiber which consists of the G657A2 type single-mode optical fiber and the temperature-resistant tight cladding outside the G657A2 type single-mode optical fiber is arranged in the cable core, the G657A2 type single-mode optical fiber has excellent bending resistance, and meets the design requirement of bending resistance of the optical cable.
Meanwhile, the optical fiber disclosed by the utility model has the advantages of simple structure, high flexibility and excellent bending resistance, is particularly suitable for being used in photoelectric composite cables for mobile occasions, and is easy for optical cable welding.
When the photoelectric composite cable is operated underground, the optical cable is easy to weld, and meanwhile, the optical cable is generally arranged in the center of the photoelectric composite cable in a centering manner, so that the inner optical cable still has good impact resistance and extrusion resistance effects by means of the structure of the outer cable and the impact-resistant ground steel wire braid layer, and the operation convenience and the use effect are achieved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
reference numerals: 1-filling ointment, 2-single mode fiber, 3-temperature-resistant tight cladding, 4-loose tube, 5-tensile fiber layer, 6-sheath layer and 7-fiber reinforcement layer.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and examples.
Example 1
The utility model provides a novel special bending-resistant optical cable, which comprises 2-12 core tightly-packed colored optical fibers, filling ointment 1, loose tubes 4, a tensile fiber layer 5, a sheath layer 6 and a fiber reinforcing layer 7 from inside to outside;
wherein, the tensile fiber layer 5 and the fiber reinforcement layer 7 are both made of para-aramid fiber woven structures which are formed by reducing p-phenylene diamine and terephthaloyl chloride.
In the embodiment, the 2-12 core tight-cladding colored optical fiber consists of a bending-resistant G657A2 single-mode optical fiber 2 and a temperature-resistant tight cladding 3; the temperature-resistant tight cladding 3 is composed of polyimide or fluoroplastic; the temperature-resistant tight cladding 3 formed by polyimide or fluoroplastic meets the long-term use temperature of the optical cable of-60 ℃ to 200 ℃; the outer diameter of the temperature-resistant tight cladding 3 is 0.6+/-0.1 mm.
In this embodiment, the loose tube 4 is made of PET or fluoroplastic; the tensile fiber layer 5 material is composed of para-aramid fiber formed by reducing p-phenylene diamine and terephthaloyl chloride; the sheath layer 6 is made of fluoroplastic; the fiber braiding reinforcing layer 7 consists of para-aramid fiber reduced by p-phenylene diamine and terephthaloyl chloride; the outer diameter of the finished optical cable after the fiber is braided with the reinforcing layer is 3.7+/-0.3 mm.
In the embodiment, the para-aramid fiber knitting structure adopts 2 aramid fiber reinforced fiber lines which are made of which the right-hand twisting degree is 60 and the linear density is 1000 as a group, 16 ingots are adopted, the para-aramid fiber reinforced fiber lines are cross-knitted on a 16-ingot knitting machine, and the knitting pitch is strictly controlled within the range of 10-20mm.
Example 2
An optical-electrical composite cable comprising the novel special bending-resistant optical cable described in the above embodiment 1, and further comprising a steel wire braid.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the utility model, and that variations and modifications of the above described embodiments will fall within the scope of the claims of the utility model as long as they fall within the true spirit of the utility model.
Claims (4)
1. A novel special bending-resistant optical cable is characterized by comprising 2-12 core tightly-packed colored optical fibers, filling ointment, loose tubes, a tensile fiber layer, a sheath layer and a fiber reinforced layer from inside to outside;
wherein, the tensile fiber layer and the fiber reinforcement layer are both made of para-aramid fiber knitting structures formed by polycondensation of p-phenylene diamine and terephthaloyl chloride.
2. The novel special bending-resistant optical cable according to claim 1, wherein the 2-12 core tight-cladding colored optical fiber consists of a G657A2 type single-mode optical fiber and a temperature-resistant tight-cladding wrapping the same; the temperature-resistant tight cladding is made of polyimide or fluoroplastic, and the outer diameter of the temperature-resistant tight cladding is 0.6+/-0.1 mm.
3. The new special bending resistant optical cable according to claim 1, wherein the outer diameter of the fiber-reinforced layer is 3.7±0.3mm.
4. An optical-electrical composite cable comprising an optical-electrical composite cable core and an outer sheath structure, wherein the optical-electrical composite cable core comprises the novel special bending-resistant optical cable according to any one of claims 1-3, and the outer sheath structure comprises a steel wire braid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321738341.XU CN220650949U (en) | 2023-07-03 | 2023-07-03 | Novel special bending-resistant optical cable and photoelectric composite cable with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321738341.XU CN220650949U (en) | 2023-07-03 | 2023-07-03 | Novel special bending-resistant optical cable and photoelectric composite cable with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220650949U true CN220650949U (en) | 2024-03-22 |
Family
ID=90297103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321738341.XU Active CN220650949U (en) | 2023-07-03 | 2023-07-03 | Novel special bending-resistant optical cable and photoelectric composite cable with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220650949U (en) |
-
2023
- 2023-07-03 CN CN202321738341.XU patent/CN220650949U/en active Active
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