CN100492080C - Leakage coaxial optical fiber cable with double-steel-wire reinforced inner conductor and method for making same - Google Patents
Leakage coaxial optical fiber cable with double-steel-wire reinforced inner conductor and method for making same Download PDFInfo
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- CN100492080C CN100492080C CNB2006101698938A CN200610169893A CN100492080C CN 100492080 C CN100492080 C CN 100492080C CN B2006101698938 A CNB2006101698938 A CN B2006101698938A CN 200610169893 A CN200610169893 A CN 200610169893A CN 100492080 C CN100492080 C CN 100492080C
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- coaxial cable
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- inner conductor
- leakage coaxial
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Abstract
The leaky coaxial cable with dual steel wire strengthening inner conductor has plastic hollow tubes with strength steel wire at both ends as mechanical support, the central line of two steel wires and plastic hollow tube on the same surface, to ensure the setting of the leaky coaxial cable not being twisted. The vertically wrapped copper and foil compound strip outside the plastic hollow tube to form the inner conductor of the leaky coaxial cable, saving a lot of copper. There are many oil filled fiber optic bundled tube inside the inner conductor, being able to form a communication system with high quality vehicle and road photographic conversion, ensuring the running safety of the vehicle. Outside the inner conductor, there is the extruded plastic physical foaming insulating layer on which vertically strained with periodic radiating groove cooper band, forming the outside conductor of the leaky coaxial calbe with protective sheath. It dramatically reduces copper consumption, with increased anti stretch strength, being able to ensure the radiating groove facing the antenna of the vehicle permanently, with reliable coupling stability, and great economic benefits.
Description
Technical field
The present invention relates to rail vehicle-ground communication technical field.Specifically a kind of leakage coaxial cable with double-steel-wire reinforced inner conductor and manufacture method thereof that is applied in high-speed railway car-ground communication.
Background technology
Its inner wire of leaky coaxial cable that the current track special bus-ground signal post uses has two kinds.A kind of is the metal copper pipe, and this need consume the high pure electrolytic copper of hundreds of kilograms, because the resource of copper is deficient day by day, the nearly rise in price several times of copper in two years so the inner wire that copper pipe is made costs an arm and a leg, must be improved.Another kind of inner wire is made up of copper-clad aluminum conductor, its tensile strength is lower, stretcher strain easily in construction, make the characteristic variation of whole leakage coaxial, leakage coaxial with above-mentioned two kinds of inner wires reverses in work progress easily, the radius that makes leakage coaxial causes the coupling loss between leakage coaxial and locomotive antenna to produce very big fluctuation not point-blank, and the bit error rate of car-ground communication is increased greatly.These two kinds of leakage coaxials all can not be made the optical cable that contains fibre bundle in addition, can not make Optical Fiber Transmission and leak car-earth communication system that the cable radiation delivery is organically formed high stability.So press for the leakage coaxial cable of new structure inner wire.
Summary of the invention
Purpose of the present invention just provides a kind of leakage coaxial cable and manufacture method thereof with double-steel-wire reinforced inner conductor, and this is the leakage coaxial cable of a kind of function admirable, cheapness.
The present invention is achieved in that
The leakage coaxial cable that the present invention has a double-steel-wire reinforced inner conductor by plastics blank pipe (1), strengthen steel wire (2), contain inner wire (6), physic foaming insulation layer (7), outer conductor (8) and the sheath (9) that two inner wire mechanical support (3), oil-filled optical fiber bundle tubes (4), compound copper-plastics bands (5) of strengthening steel wires form and form.Be provided with two reinforcement steel wires (2) in the same plane in the both sides of plastics blank pipe (1), form the mechanical support (3) of inner wire.In the mechanical support (3) of inner wire, vertically be provided with oil-filled optical fiber bundle tubes (4).The vertical mechanical support (3) that wraps in inner wire of compound copper-plastics band (5) goes up forms inner wire (6).Physic foaming insulation layer (7) is arranged on the inner wire (6), roll the vertical insulation course (7) that wraps in of the copper strips that radius is arranged and go up formation outer conductor (8).Outer conductor (8) is provided with sheath (9).
The method for making that the present invention has the leakage coaxial cable of double-steel-wire reinforced inner conductor comprises the steps:
1. the both sides of the plastics blank pipe (1) that is shaped at extrusion molding are provided with in the same plane two of the center line of plastics blank pipe (1) and strengthen steel wires (2), form the mechanical support (3) of inner wire.
2. in the extrusion process of the mechanical support (3) of inner wire, vertically place and have oil-filled optical fiber bundle tubes (4).
3. the preparation width is greater than the compound copper-plastics band (5) of mechanical support (3) section girth of inner wire.
4. above-mentioned compound copper-plastics band is indulged wrapping on the mechanical support (3) of inner wire, and heating makes vertical overseam crack bonding in vertical packet shaping process, forms inner wire (6).
5. this novel inner wire size dimension is determined that by the leakage coaxial cable physical dimension physic foaming insulation layer (7) of respective thickness is arranged in the conductor.
6. will roll that the copper strips that radius is arranged is vertical to wrap on the physic foaming insulation layer (7), form leakage coaxial cable outer conductor (8).
7. go up extrusion molding sheath (9) at leakage coaxial cable outer conductor (8), just made leakage coaxial cable with double-steel-wire reinforced inner conductor.
Of the present invention one big advantage is that the inner wire copper consumption reduces significantly, and tensile strength increases considerably, and can guarantee that radius aims at the antenna of locomotive forever, and coupling performance is reliable and stable, has very big economic benefit.Another big advantage is to contain fibre bundle in the inner wire, Optical Fiber Transmission and leakage cable radiation delivery organically can be combined rail vehicle-earth communication system of forming high stability thus.
Description of drawings
Fig. 1 comprises two leakage coaxial cable inner wire mechanical support structural representations of strengthening steel wire.
Fig. 2 is for comprising fibre bundle leakage coaxial cable inner wire mechanical support structural representation.
Fig. 3 is a leakage coaxial cable inner wire structural representation.
Fig. 4 is a leakage coaxial cable physical foam insulation body structure synoptic diagram.
Fig. 5 is the leakage coaxial cable structural representation with double-steel-wire reinforced inner conductor.
Embodiment
1 is stranded with several optical fiber employing SZ, enters the extrusion molding program again, is extruded into the optical fiber bundle tubes (4) that contains ointment.Oil-filled optical fiber bundle tubes (4) with multifiber is the light-transmitting medium of car-ground communication, can constitute the high-quality car-earth communication system of opto-electronic conversion, guarantees traffic safety.Fiber count in the oil-filled beam tube is determined by system requirements.
2 enter extruding machine again with above-mentioned optical fiber bundle tubes (4), in extrusion process, need two of parallel addings to strengthen steel wire (2), the plastics blank pipe of being extruded (1) will be strengthened steel wire and be included in the tube wall, two center lines of strengthening steel wires (2) and plastics blank pipe (1) coexist in the plane, constitute thus to comprise two leakage coaxial cable inner wire mechanical support (3) of strengthening steel wires.Because two parallel reinforcement steel wires are arranged, can guarantee that this cable can not reverse in laid processes, the radius that lays the leakage coaxial cable after finishing like this can be aimed at the antenna of locomotive forever.Shown in accompanying drawing 1,2.
3 preparation width are greater than the compound copper-plastics band (5) of 3～5 millimeters of the leakage coaxial cable inner wire mechanical support section girths that comprises two reinforcement steel wires, this compound copper-plastics band is the plastic sheeting that the copper strips two sides about 0.05mm scribbles acrylic compounds, the plastic sheeting of this acrylic compounds can with the Copper Foil close adhesion, again can be bonding with the tygon precision.Vertical the wrapping in of above-mentioned compound copper-plastics band (5) contained on two leakage coaxial cable inner wire mechanical support (3) of strengthening steel wires, and heating makes vertical overseam crack bonding in vertical packet shaping process, formation inner wire (6).Because the compound copper-plastics band of inner wire about by 0.05mm formed,, make the price decline of leakage coaxial cable so can save a large amount of copper.As shown in Figure 3.
4 inner wires (6) enter the physical blowing extruding machine immediately, are extruded into the cellular polyethylene insulation layer (7) of corresponding size.As shown in Figure 4.
5 above-mentioned assemblies with cellular polyethylene insulation layer (7) enter the vertical chartered plane of outer conductor again, will roll the vertical cellular polyethylene insulation layer (7) that wraps in of the copper strips that various radius are arranged and go up formation outer conductor (8).Go up the thick black polyethylene sheath (9) of extrusion molding 2.5mm at outer conductor (8), this has just made the leakage coaxial cable with double-steel-wire reinforced inner conductor.As shown in Figure 5.
Claims (1)
1. the leakage coaxial cable method for making with double-steel-wire reinforced inner conductor is characterized in that it comprises the steps:
Step 1: adopt SZ stranded several optical fiber, enter the extrusion molding program again, be extruded into the optical fiber bundle tubes (4) that contains ointment; Fiber count in the oil-filled beam tube is determined by system requirements;
Step 2: above-mentioned optical fiber bundle tubes (4) is entered extruding machine again, steel wire (2) is strengthened in two of parallel addings in extrusion process, the plastics blank pipe of being extruded (1) will be strengthened steel wire and be included in the tube wall, two center lines of strengthening steel wires (2) and plastics blank pipe (1) plane that coexists constitutes thus and comprises two mechanical support (3) of strengthening steel wires; Because two parallel reinforcement steel wires are arranged, can guarantee that this cable can not reverse in laid processes, the radius that lays the leakage coaxial cable after finishing like this can be aimed at the antenna of locomotive forever;
Step 3: on the plastics blank pipe mechanical support (3) that comprises two antitorque commentaries on classics reinforcement steel wires, the width of the compound copper-plastics band (5) of vertical bag is bigger 3～5 millimeters than the section girth of mechanical support (3); This compound copper-plastics band is the plastic sheeting that scribbles acrylic compounds on the copper strips two sides of 0.05mm left and right thickness, the plastic sheeting of this acrylic compounds can with the Copper Foil close adhesion, again can with the tygon close adhesion; And heating makes the inner wire (6) of indulging the bonding formation leakage coaxial cable in overseam crack in vertical packet shaping process,
Step 4: the inner wire (6) that will have vertical copper-clad plastic composite strip enters the physical blowing extruding machine immediately, is extruded into the cellular polyethylene insulation layer (7) of corresponding size;
Step 5: the assembly that will have cellular polyethylene insulation layer (7) enters the vertical chartered plane of outer conductor again, will roll the vertical cellular polyethylene insulation layer (7) that wraps in of the copper strips that various radius are arranged and go up formation outer conductor (8);
Step 6: on outer conductor (8), the sheath of the black polyethylene that extrusion molding 2.5mm is thick (9), this has just made the leakage coaxial cable with double-steel-wire reinforced inner conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101698938A CN100492080C (en) | 2006-12-30 | 2006-12-30 | Leakage coaxial optical fiber cable with double-steel-wire reinforced inner conductor and method for making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101698938A CN100492080C (en) | 2006-12-30 | 2006-12-30 | Leakage coaxial optical fiber cable with double-steel-wire reinforced inner conductor and method for making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1996080A CN1996080A (en) | 2007-07-11 |
| CN100492080C true CN100492080C (en) | 2009-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101698938A Expired - Fee Related CN100492080C (en) | 2006-12-30 | 2006-12-30 | Leakage coaxial optical fiber cable with double-steel-wire reinforced inner conductor and method for making same |
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| Country | Link |
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| CN (1) | CN100492080C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950837A (en) * | 2010-09-13 | 2011-01-19 | 网拓(上海)通信技术有限公司 | Leakage coaxial cable and manufacturing method thereof |
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2006
- 2006-12-30 CN CNB2006101698938A patent/CN100492080C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 地铁中漏泄同轴电缆的选择和配置. 徐华林，马建萍.都市快轨交通，第18卷第1期. 2005 |
| 地铁中漏泄同轴电缆的选择和配置. 徐华林，马建萍.都市快轨交通，第18卷第1期. 2005 * |
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| CN1996080A (en) | 2007-07-11 |
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Granted publication date: 20090527 Termination date: 20131230 |