CN203895178U - Train axle counter railway digital signal cable - Google Patents
Train axle counter railway digital signal cable Download PDFInfo
- Publication number
- CN203895178U CN203895178U CN201420144785.5U CN201420144785U CN203895178U CN 203895178 U CN203895178 U CN 203895178U CN 201420144785 U CN201420144785 U CN 201420144785U CN 203895178 U CN203895178 U CN 203895178U
- Authority
- CN
- China
- Prior art keywords
- quad
- digital signal
- cable
- railway digital
- meter shaft
- 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.)
- Expired - Fee Related
Links
- 238000004891 communication Methods 0.000 claims abstract description 27
- 239000004698 Polyethylene Substances 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- -1 polyethylene Polymers 0.000 claims abstract description 12
- 229920000573 polyethylene Polymers 0.000 claims abstract description 12
- 230000004888 barrier function Effects 0.000 claims description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 27
- 229910052802 copper Inorganic materials 0.000 claims description 27
- 239000010949 copper Substances 0.000 claims description 27
- 239000004020 conductor Substances 0.000 claims description 17
- 238000005253 cladding Methods 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model relates to the cable manufacturing technology field, and concretely relates to a train axle counter railway digital signal cable. The cable comprises a cable core and an outer sheath wrapping the cable core. The cable core comprises at least an inner shield communication quad and a signal quad. The inner shield communication quad and the signal quad are formed by four insulated single wires which are intertwisted. A non-hygroscopic insulating layer is arranged outside the cable core. A metal shielding layer wraps the non-hygroscopic insulating layer. A polyethylene binding sheath layer wraps the metal shielding layer. A double-steel-tape armoring layer is arranged between the polyethylene binding sheath layer and the outer sheath. Through individual shield of the low-frequency guad bearing an axle counter data transmission channel, the problem of crosstalk disturbance among cable cores is solved effectively, the cable shield performance is enhanced, the transmission efficiency of axle counter information in a railway system is raised, and the safety and the reliability of the cable are raised greatly.
Description
Technical field
The utility model relates to cables manufacturing technical field, is specifically related to a kind of train meter shaft railway digital signal cable.
Background technology
Meter shaft cable is mainly applicable to rated voltage and exchanges 500V/ direct current 1500V and following signalling arrangement with fixedly laying train meter shaft in the railway system.Wherein LF communication quad can be used as meter shaft data transmission channel, is applicable to the transmission of audio-frequency information (data-signal, analog signal), and signal quad is applicable to power frequency or direct current supply transmission, also can be used for the transmission of audiorange internal information.
Along with the speed raising again and again of Line for Passenger Transportation and existing railway, the accuracy of train axle information is had higher requirement.There is cross-talk ability in meter shaft cable of the prior art, this security performance to train forms threat greatly.
Utility model content
For the deficiency existing in prior art, the utility model provides one to have good shielding properties, can effectively solve cross-talk problem in cable core, improves the train meter shaft railway digital signal cable of information transfer efficiency.
To achieve these goals, the utility model is to realize by the following technical solutions:
A kind of train meter shaft railway digital signal cable, it comprises cable core and is coated on the oversheath outside cable core, described cable core comprises at least one inner shield communication quad and a signal quad, described inner shield communication quad and signal quad are by four stranded forming of insulated single wire, described cable core arranges non-hygroscopic insulating barrier outward, described non-hygroscopic insulating barrier outer cladding metal screen layer, described metal screen layer arranges polyethylene bonding sheath outward, between described polyethylene bonding sheath and oversheath, double-tape armor layer is set.
Above-mentioned a kind of train meter shaft railway digital signal cable, the inner shield communication quad described in it and signal quad are by stranded the forming of insulated single wire of four different colours.
Above-mentioned a kind of train meter shaft railway digital signal cable, the insulated single wire of inner shield described in it communication quad and signal quad by copper conductor, be coated on the insulating barrier composition of copper conductor periphery.
Above-mentioned a kind of train meter shaft railway digital signal cable, the insulating barrier of the insulated single wire of the inner shield communication quad described in it is three-layer co-extruded skin-bubble-Pi physical blowing structure.
Above-mentioned a kind of train meter shaft railway digital signal cable, the copper conductor nominal diameter of the insulated single wire of the inner shield communication quad described in it is 0.9mm.
Above-mentioned a kind of train meter shaft railway digital signal cable, the copper conductor nominal diameter of the insulated single wire of the signal quad described in it is 1.0mm.
Above-mentioned a kind of train meter shaft railway digital signal cable, the insulating barrier of the insulated single wire of the signal quad described in it is solid polyolefin insulation layer.
Above-mentioned a kind of train meter shaft railway digital signal cable, inner shield communication quad outer cladding non-hygroscopic insulating barrier described in it, non-hygroscopic insulating barrier outer cladding copper strips, is close to copper strips along putting an earial drainage line, at copper strips and the coated non-hygroscopic insulating barrier of earial drainage line periphery.
Above-mentioned a kind of train meter shaft railway digital signal cable, the copper strips thickness described in it is not less than 0.09mm.
Above-mentioned a kind of train meter shaft railway digital signal cable, the earial drainage linear diameter described in it is not less than 0.4mm.
Above-mentioned a kind of train meter shaft railway digital signal cable, the cable core stranding twisting pitch described in it is conductor assembly outer diameter 35～55 times.
Beneficial effect:
The utility model is undertaken individually shielded by the low frequency quad to carrying meter shaft data transmission channel, effectively solve cross-talk problem between cable core, strengthens cable shield performance, improves the efficiency of transmission of axle information in the railway system.Meanwhile, the insulated single wire of inner shield communication quad adopts three-layer co-extruded skin-bubble-Pi physical blowing structure, can improve insulating resistance of cable, reduces the sending allowance of cable, reduces the mutual capacitance of cable, thereby greatly improves the security reliability of cable.
In addition, by non-hygroscopic insulating barrier, metal screen layer, polyethylene bonding sheath, double-tape armor layer, oversheath are set outward at cable core, make cable there is superior shielding, heatproof, protection against the tide, resistance to compression, anti-animal tooth and the function such as sting, meet the requirement of high-speed railway to cable completely.
Brief description of the drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present utility model.
In figure: 1, insulated single wire; 2, copper conductor; 3, insulating barrier; 4, inner shield communication quad; 5, signal quad; 6, cable core; 7, non-hygroscopic insulating barrier; 8, metal screen layer; 9, polyethylene bonding sheath; 10, double-tape armor layer; 11, oversheath.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to Fig. 1, the utility model comprises cable core 6 and is coated on the oversheath 11 outside cable core 6, cable core 6 comprises three inner shield communication quads 4 and a signal quad 5, the outer non-hygroscopic insulating barrier 7 that arranges of cable core 6, non-hygroscopic insulating barrier 7 outer cladding metal screen layers 8, the outer polyethylene bonding sheath 9 that arranges of metal screen layer 8, arranges double-tape armor layer 10 between polyethylene bonding sheath 9 and oversheath 11.Cable core 6 stranding twisting pitch are conductor assembly outer diameter 45 times.
Inner shield communication quad 4 and signal quad 5 be respectively by stranded the forming of insulated single wire 1 of four different colours, and described insulated single wire 1 forms by copper conductor 2, the insulating barrier 3 that is coated on copper conductor 2 peripheries.
The insulating barrier 3 of the insulated single wire 1 of inner shield communication quad 4 is three-layer co-extruded skin-bubble-Pi physical blowing structure, and copper conductor 2 nominal diameters are 0.9mm.
Copper conductor 2 nominal diameters of the insulated single wire 1 of signal quad 5 are 1.0mm, and insulating barrier 3 is solid polyolefin insulation layer.
Inner shield communication quad 4 outer cladding non-hygroscopic insulating barriers, non-hygroscopic insulating barrier outer cladding copper strips, is close to copper strips along putting an earial drainage line, at copper strips and the coated non-hygroscopic insulating barrier of earial drainage line periphery.Described copper strips thickness is not less than 0.09mm, and earial drainage linear diameter is not less than 0.4mm.
Manufacturing process of the present utility model is as follows:
1, first, according to demand the insulated single wire of four different colours having produced 1 is carried out to the stranded quad of making;
2, coated non-hygroscopic insulating barrier, copper strip shielding layer, suitable drainage streamline, coated non-hygroscopic insulating barrier make it to form inner shield communication quad 4 successively outward in quad the low frequency inner shield communication quad (being the quad of copper conductor nominal diameter 0.9mm) of having produced to be utilized to inner shield production line.
3, according to demand the inner shield communication quad 4 of having produced is utilized to the stranded cable core 6 of making of machine for making cable high-speedly together with signal quad 5 again, and at cable core 6 outer cladding non-hygroscopic insulating barriers 7.Qualified for guaranteeing the every electricity function index of cable, in process of production, in cable core 6 institute wired group must keep uniform tension in order, the scope that arranges of stranding twisting pitch is 35～55 times of cable core 6 external diameters.
4, finally outside non-hygroscopic insulating barrier 7, clad metal screen 8, polyethylene bonding sheath 9, double-tape armor layer 10 and oversheath 11 make train meter shaft railway digital signal cable of the present utility model successively.
This train meter shaft railway digital signal cable is undertaken individually shielded by the low frequency quad to carrying meter shaft data transmission channel, effectively solve cross-talk problem between cable core, strengthens cable shield performance, improves the efficiency of transmission of axle information in the railway system.Meanwhile, the insulated single wire of inner shield communication quad adopts three-layer co-extruded skin-bubble-Pi physical blowing structure, can improve insulating resistance of cable, reduces the sending allowance of cable, reduces the mutual capacitance of cable, thereby greatly improves the security reliability of cable.
In addition, by non-hygroscopic insulating barrier, metal screen layer, polyethylene bonding sheath, double-tape armor layer, oversheath are set outward at cable core, make cable there is superior shielding, heatproof, protection against the tide, resistance to compression, anti-animal tooth and the function such as sting, meet the requirement of high-speed railway to cable completely.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (11)
1. a train meter shaft railway digital signal cable, it is characterized in that, comprise cable core and be coated on the oversheath outside cable core, described cable core comprises at least one inner shield communication quad and a signal quad, described inner shield communication quad and signal quad are by four stranded forming of insulated single wire, described cable core arranges non-hygroscopic insulating barrier outward, described non-hygroscopic insulating barrier outer cladding metal screen layer, described metal screen layer arranges polyethylene bonding sheath outward, between described polyethylene bonding sheath and oversheath, double-tape armor layer is set.
2. a kind of train meter shaft railway digital signal cable according to claim 1, is characterized in that, described inner shield communication quad and signal quad are by stranded the forming of insulated single wire of four different colours.
3. a kind of train meter shaft railway digital signal cable according to claim 1 and 2, is characterized in that, the insulated single wire of described inner shield communication quad and signal quad by copper conductor, be coated on the insulating barrier composition of copper conductor periphery.
4. a kind of train meter shaft railway digital signal cable according to claim 3, is characterized in that, the insulating barrier of the insulated single wire of described inner shield communication quad is three-layer co-extruded skin-bubble-Pi physical blowing structure.
5. a kind of train meter shaft railway digital signal cable according to claim 3, is characterized in that, the copper conductor nominal diameter of the insulated single wire of described inner shield communication quad is 0.9mm.
6. a kind of train meter shaft railway digital signal cable according to claim 3, is characterized in that, the copper conductor nominal diameter of the insulated single wire of described signal quad is 1.0mm.
7. a kind of train meter shaft railway digital signal cable according to claim 3, is characterized in that, the insulating barrier of the insulated single wire of described signal quad is solid polyolefin insulation layer.
8. a kind of train meter shaft railway digital signal cable according to claim 1 and 2, it is characterized in that, described inner shield communication quad outer cladding non-hygroscopic insulating barrier, non-hygroscopic insulating barrier outer cladding copper strips, be close to copper strips along putting an earial drainage line, at copper strips and the coated non-hygroscopic insulating barrier of earial drainage line periphery.
9. a kind of train meter shaft railway digital signal cable according to claim 8, is characterized in that, described copper strips thickness is not less than 0.09mm.
10. a kind of train meter shaft railway digital signal cable according to claim 8, is characterized in that, described earial drainage linear diameter is not less than 0.4mm.
11. a kind of train meter shaft railway digital signal cables according to claim 1 and 2, is characterized in that, described cable core stranding twisting pitch is conductor assembly outer diameter 35～55 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144785.5U CN203895178U (en) | 2014-03-28 | 2014-03-28 | Train axle counter railway digital signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144785.5U CN203895178U (en) | 2014-03-28 | 2014-03-28 | Train axle counter railway digital signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895178U true CN203895178U (en) | 2014-10-22 |
Family
ID=51721550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420144785.5U Expired - Fee Related CN203895178U (en) | 2014-03-28 | 2014-03-28 | Train axle counter railway digital signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104036872A (en) * | 2014-03-28 | 2014-09-10 | 江苏通鼎光电科技有限公司 | Railway digital signal axle counter cable of train |
-
2014
- 2014-03-28 CN CN201420144785.5U patent/CN203895178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104036872A (en) * | 2014-03-28 | 2014-09-10 | 江苏通鼎光电科技有限公司 | Railway digital signal axle counter cable of train |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 |