CN108254845B - Microbeam tube field operation optical cable - Google Patents
Microbeam tube field operation optical cable Download PDFInfo
- Publication number
- CN108254845B CN108254845B CN201810330870.3A CN201810330870A CN108254845B CN 108254845 B CN108254845 B CN 108254845B CN 201810330870 A CN201810330870 A CN 201810330870A CN 108254845 B CN108254845 B CN 108254845B
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- layer
- microbeam
- tpu
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- optical cable
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/441—Optical cables built up from sub-bundles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Communication Cables (AREA)
Abstract
The invention relates to a microbeam tube field operation optical cable, which comprises a double-layer co-extrusion TPU layer, a flexible foaming material tube and a microbeam tube unit, wherein the double-layer co-extrusion TPU layer comprises a second TPU layer and a first TPU layer which are arranged from outside to inside, a double-layer flexible film layer is arranged between the second TPU layer and the first TPU layer, the double-layer flexible film layer comprises a second flexible film layer and a first flexible film layer, and a plurality of strands of aramid yarns are arranged between the second flexible film layer and the first flexible film layer; the middle of the ductile foaming material pipe is of a hollow structure, and the ductile foaming material pipe is formed by splicing two ductile foaming material units; the microbeam tube unit comprises a microbeam tube and a plurality of colored optical fibers arranged in the microbeam tube from outside to inside. The invention has the advantages of stretch resistance, lateral pressure resistance, wear resistance, light weight and the like, overcomes the weight problem of the existing metal armored field optical cable and the defect of electromagnetic interference reduction resistance, and can meet the military field communication and civil communication requirements of thunder and lightning areas.
Description
Technical Field
The invention relates to the technical field of field operations and field communications, in particular to a microbeam tube field operation optical cable.
Background
With the increasing demand for information construction of armies, a large number of information equipment are listed, interconnection between the equipment is very important, and especially in severe environments, field optical cables have become necessary communication media for field operations of the armies and in complex environments. The design requirement of the metal-free optical cable is increasingly important in order to meet the requirements of rapid wiring or repeated winding and unwinding in field operations and complex environments.
The field operation optical cable that uses at present adopts metal spiral armor structure for increasing the anti side pressure performance of field operations, field use optical cable, but the shaping speed of spiral structure is slow can lead to process time longer, and metal material also makes unit length weight improve, inconvenient carrying, and metal structure makes the optical cable be limited in the application of thunderstorm area simultaneously.
Disclosure of Invention
The invention mainly aims to provide a microbeam tube field operation optical cable integrating lateral pressure resistance, stretch resistance, wear resistance and light weight, and aims to solve the technical problem that the weight of the field operation optical cable is increased due to the fact that metal spiral armor is selected for meeting the tensile property and the compression property in the prior art.
In order to achieve the aim, the microbeam tube field operation optical cable provided by the invention sequentially comprises a double-layer co-extrusion TPU layer, a ductile foaming material tube and a microbeam tube unit from outside to inside, wherein,
the double-layer co-extrusion TPU layer comprises a second TPU layer and a first TPU layer which are arranged from outside to inside, the cross sections of the second TPU layer and the first TPU layer are annular, a double-layer tough film layer with an annular cross section is arranged between the second TPU layer and the first TPU layer, the double-layer tough film layer comprises a second tough film layer and a first tough film layer which are sequentially arranged from outside to inside, and a plurality of strands of aramid yarns are uniformly arranged between the second tough film layer and the first tough film layer along the axial direction;
the middle of the ductile foaming material pipe is a hollow structure for accommodating the microbeam pipe units, and the ductile foaming material pipe is formed by splicing two ductile foaming material units with semicircular cross sections;
the microbeam tube unit comprises a microbeam tube and a plurality of colored optical fibers arranged in the microbeam tube from outside to inside.
According to a further technical scheme, the manufacturing material of the microbeam tube is one of high-strength ethylene fiber or nylon material.
The invention further adopts the technical scheme that the manufacturing material of the tough foaming material pipe is prepared by doping foaming agent and tough material.
According to a further technical scheme, the manufacturing material of the double-layer tough film layer is synthetic plastic containing TPU.
The further technical scheme of the invention is that the number of the strands of the aramid yarns is eight or more.
According to a further technical scheme, the manufacturing material of the double-layer co-extrusion TPU layer is thermoplastic polyurethane elastomer rubber material doped wear-resistant reinforcing material.
The beneficial effects of the invention are as follows: according to the technical scheme, the microbeam tube field operation optical cable comprises a double-layer co-extrusion TPU layer, a tough foaming material tube and a microbeam tube unit from outside to inside in sequence, wherein the double-layer co-extrusion TPU layer comprises a second TPU layer and a first TPU layer which are arranged from outside to inside, the cross sections of the second TPU layer and the first TPU layer are annular, a double-layer tough film layer with an annular cross section is arranged between the second TPU layer and the first TPU layer, the double-layer tough film layer comprises a second tough film layer and a first tough film layer which are arranged from outside to inside in sequence, and a plurality of aramid yarns are uniformly arranged between the second tough film layer and the first tough film layer along the axial direction; the middle of the ductile foaming material pipe is a hollow structure for accommodating the microbeam pipe units, and the ductile foaming material pipe is formed by splicing two ductile foaming material units with semicircular cross sections; the micro-beam tube unit comprises a micro-beam tube and a plurality of colored optical fibers arranged in the micro-beam tube from outside to inside, so that the ultra-light beam tube field optical cable has the advantages of stretching resistance, lateral pressure resistance, wear resistance, light weight and the like, and the defects of weight problem and electromagnetic interference reduction resistance of the existing metal armored field optical cable are overcome.
Drawings
FIG. 1 is a schematic cross-sectional view of a field optical cable with microbeam tubes according to the preferred embodiment of the present invention;
fig. 2 is a schematic diagram of a longitudinal section structure of the microbeam tube field optical cable after the double-layer ductile film layer is unfolded.
Reference numerals:
a microbeam tube unit-10;
colored optical fiber-101;
microbeam tube-102;
a ductile foaming material pipe-20;
double-layer tough film layer-30;
aramid yarn-40;
double-layer co-extrusion TPU layer-50;
a first TPU layer-501;
a second TPU layer-502.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of some of the embodiments of the present invention and are not intended to limit the invention. All other embodiments derived from the inventive embodiments without being inventive are within the scope of the protection of the present invention.
The main solution of the invention is as follows: according to the microbeam tube field operation optical cable, the inner colored optical fibers can meet the requirements of different transmission core numbers, the inner colored optical fibers are protected by the ultra-high-strength microbeam tube, the ultra-light structure is designed into an ultra-light toughness foaming material tube, the ultra-light toughness is excellent, a plurality of aramid yarns are pressed in parallel in the middle of a double-layer toughness film layer arranged in the middle of a high-strength double-layer co-extrusion TPU layer, the tensile property of the microbeam tube field operation optical cable is improved, meanwhile, TPU components are contained in the high-toughness plastic film, the TPU components can be mutually and tightly connected with the surface of the TPU double-layer co-extrusion into a whole, the compression resistance of the microbeam tube field operation optical cable is improved together with the ultra-high-toughness foaming material tube, and the situation that the inner colored optical fibers are damaged or the attenuation of the microbeam tube field operation optical cable is obviously reduced under the action of lateral pressure is avoided; the microbeam tube field optical cable obtained by the method has the advantages of stretch resistance, lateral pressure resistance, wear resistance, light weight and the like, and overcomes the defects of weight problem and electromagnetic interference reduction resistance of the existing metal armored field optical cable.
The field optical cable used in most current fields, the metal armored field optical cable has weight problem, the structural design of the optical cable used in the directions of anti-electromagnetic interference reduction and the like still has innovation.
The invention provides a microbeam tube field operation optical cable which integrates stretch resistance, side pressure resistance, abrasion resistance and light weight into a whole by utilizing gradient structural design of an ultra-high strength microbeam tube, a uniform aramid yarn, an ultra-light toughness foaming material tube and a high-strength double-layer TPU (thermoplastic polyurethane) in order to solve the technical problem that the cable weight is increased due to the fact that metal spiral armor is required to be selected for the existing field operation optical cable to meet the compression resistance.
Specifically, referring to fig. 1 to 2, fig. 1 is a schematic cross-sectional structure diagram of a preferred embodiment of a microbeam tube field optical cable according to the present invention, and fig. 2 is a schematic longitudinal cross-sectional structure diagram of a microbeam tube field optical cable according to the present invention after the double-layer ductile film layer is stretched.
The microbeam tube field optical cable provided by the embodiment sequentially comprises a double-layer co-extrusion TPU layer 50, a flexible foam material tube 20 and a microbeam tube unit 10 from outside to inside.
The double-layer co-extrusion TPU layer 50 comprises a second TPU layer 502 and a first TPU layer 501 which are arranged from outside to inside, the cross sections of the second TPU layer 502 and the first TPU layer 501 are annular, a double-layer tough film layer 30 with an annular cross section is arranged between the second TPU layer 502 and the first TPU layer 501, the double-layer tough film layer 30 comprises a second tough film layer and a first tough film layer which are sequentially arranged from outside to inside, and a plurality of strands of aromatic wheel yarns 40 are uniformly arranged between the second tough film layer and the first tough film layer along the axial direction.
It will be appreciated that, in order to improve the wear resistance and mechanical strength of the double-layer co-extruded TPU layer 50, in this embodiment, the double-layer co-extruded TPU layer 50 may be made of a thermoplastic polyurethane elastomer rubber material doped with a wear-resistant reinforcing material, and of course, in other embodiments, other materials with good mechanical strength may be selected.
The double-layer tough film layer 30 and the aramid yarn 40 are made of synthetic plastic materials containing TPU, and provide toughness assistance; the aramid yarns 40 in the double-layer flexible film layer 30 are pressed between the second flexible film layer and the first flexible film layer in parallel at equal intervals in advance, the parallel structural strength and the toughness are both considered, the overall tensile capacity of the cable is improved, and meanwhile, the protection effect of preventing mouse biting can be achieved.
The middle of the ductile foaming material pipe 20 is a hollow structure for accommodating the microbeam pipe unit 10, and the ductile foaming material pipe 20 is formed by splicing two ductile foaming material units with semicircular cross sections.
In particular, the ductile foaming material pipe 20 may be formed by splicing two ductile foaming material units with semicircular cross sections through a sizing die, so as to play a better role in buffering.
The microbeam tube unit 10 includes, from outside to inside, a microbeam tube 102, and a plurality of colored optical fibers 101 disposed in the microbeam tube 102.
Wherein, the colored optical fiber 101 can adopt one or a plurality of cores, and the channels of a plurality of groups of field signals are convenient to adopt a plurality of cores.
In particular, the ductile foaming material tube 20 may be made of a foaming agent doped ductile material, and the formed protective buffer layer has a stable buffer function, so as to ensure that the microbeam tube unit 10 does not directly face the impact of the deformation of the microbeam tube field optical cable, and forms an external hard and internal ductile gradient structure with the double-layer co-extrusion TPU layer 50.
In this embodiment, the microbeam tube unit 10 is disposed in the ductile foaming material tube 20, the colored optical fiber 101 is g.652.D or a bend insensitive optical fiber (g.657.a2), and the microbeam tube 102 is one of high-strength vinyl fiber and nylon material, however, in other embodiments, other materials may be used.
In order to further improve the mechanical strength of the microbeam tube field optical cable, as an embodiment, 8 strands of aramid yarns 40 are uniformly distributed in the double-layer ductile film, and an ultra-high strength microbeam tube 102 is provided in the ductile foaming material tube 20.
In particular, the aramid yarn 40 may be formed from a plurality of strands, with the strands being arranged according to the tensile strength requirements.
It can be understood that the tensile strength of the microbeam tube field optical cable can be improved by adopting the multiple strands of aramid yarns 40, the dead weight of the microbeam tube field optical cable can be effectively reduced, and when the microbeam tube field optical cable is rapidly released in the field, the aramid yarns 40 can bear a tension in a larger range, so that the colored optical fiber 101 is better protected; in addition, the ductile foaming material pipe 20 is matched with aramid yarn and reinforced fiber ropes, and the double-layer co-extrusion TPU50 is added, so that the protection forms gradient distribution of compression resistance, tensile resistance and wear resistance.
In summary, the microbeam tube field operation optical cable provided by the invention has the advantages that the plurality of colored optical fibers 101 can meet the requirements of different transmission core numbers, the microbeam tube 102 with ultra-high strength is used for protecting the inner colored optical fibers 101, the ultra-light structure is designed to be an ultra-light foaming material tube with excellent toughness, 8 strands of aramid yarns 40 are pressed in parallel in the middle of a double-layer tough film arranged in the middle of a double-layer high-strength TPU (thermoplastic polyurethane) layer, the tensile property of the microbeam tube field operation optical cable is improved, meanwhile, TPU components are contained in the high-toughness plastic film, the TPU components can be mutually and tightly connected with the surface of the TPU layer into a whole when the TPU double-layer is co-extruded, the compression property of the microbeam tube field operation optical cable is improved together with the ultra-strong tough foaming material tube 20, and the situation that the inner colored optical fibers 101 are damaged or the attenuation of the microbeam tube field operation optical cable is obviously reduced under the action of lateral pressure is avoided; the ultra-slight beam tube field optical cable obtained by the method has the advantages of stretch resistance, lateral pressure resistance, wear resistance, light weight and the like, and overcomes the defects of weight problem and electromagnetic interference reduction resistance of the existing metal armored field optical cable. The microbeam tube field optical cable has the advantages of reduced weight, portability, easy laying, tensile property guarantee, mechanical property reaching tensile load of more than or equal to 875N, compression resistance of more than or equal to 2000N/100mm, and capability of meeting the military field communication and civil communication requirements in thunder and lightning areas.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or modifications in the structures or processes described in the specification and drawings, or the direct or indirect application of the present invention to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A microbeam tube field optical cable is characterized by comprising a double-layer co-extrusion TPU layer, a ductile foaming material tube and a microbeam tube unit from outside to inside in sequence,
the double-layer co-extrusion TPU layer comprises a second TPU layer and a first TPU layer which are arranged from outside to inside, the cross sections of the second TPU layer and the first TPU layer are annular, a double-layer tough film layer with an annular cross section is arranged between the second TPU layer and the first TPU layer, the double-layer tough film layer comprises a second tough film layer and a first tough film layer which are sequentially arranged from outside to inside, and a plurality of strands of aramid yarns are uniformly arranged between the second tough film layer and the first tough film layer along the axial direction;
the middle of the ductile foaming material pipe is a hollow structure for accommodating the microbeam pipe units, and the ductile foaming material pipe is formed by splicing two ductile foaming material units with semicircular cross sections;
the microbeam tube unit comprises a microbeam tube and a plurality of colored optical fibers arranged in the microbeam tube from outside to inside.
2. The microbeam tube field optical cable of claim 1, wherein the microbeam tube is made of one of high strength vinyl fiber or nylon material.
3. The microbeam tube field operation optical cable of claim 1, wherein the ductile foaming material tube is made of a foaming agent and a ductile material.
4. The microbeam tube field operation optical cable of claim 1, wherein the fabrication material of the double layer ductile film layer is a synthetic plastic containing TPU.
5. The microbeam tube field optical cable of claim 1, wherein the number of strands of aramid yarn is eight.
6. The microbeam tube field operation optical cable of claim 1, wherein the fabrication material of the double co-extruded TPU layer is a thermoplastic polyurethane elastomer rubber material doped with an abrasion resistant reinforcing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810330870.3A CN108254845B (en) | 2018-04-13 | 2018-04-13 | Microbeam tube field operation optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810330870.3A CN108254845B (en) | 2018-04-13 | 2018-04-13 | Microbeam tube field operation optical cable |
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| CN108254845A CN108254845A (en) | 2018-07-06 |
| CN108254845B true CN108254845B (en) | 2023-09-26 |
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| CN201810330870.3A Active CN108254845B (en) | 2018-04-13 | 2018-04-13 | Microbeam tube field operation optical cable |
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| CN108254845A (en) | 2018-07-06 |
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