CN209433934U - A kind of locomotive high-voltage cable - Google Patents
A kind of locomotive high-voltage cable Download PDFInfo
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- CN209433934U CN209433934U CN201920493480.8U CN201920493480U CN209433934U CN 209433934 U CN209433934 U CN 209433934U CN 201920493480 U CN201920493480 U CN 201920493480U CN 209433934 U CN209433934 U CN 209433934U
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Abstract
A kind of locomotive high-voltage cable provided by the utility model, it includes cable core, the cable core is by multiple conducting wires bundle strand at being twisted again by the strand again after strand, the bundle strand direction of strand described in multiply is identical, and the strand when twisting again every layer direction of lay it is all identical as the bundle strand direction of the conducting wire, be successively coated with semi-conductive tape, semi-conductive adhesive internal shield, ethylene, propylene insulating layer, insulation screen, armor and oversheath from the inside to the outside on the outside of the cable core.Locomotive high-voltage cable provided by the utility model greatly promotes the service life of locomotive high-voltage cable in such a way that new structure is in conjunction with ultra-soft tinned wire material.
Description
Technical field
The utility model relates to locomotive traction field of cable technology more particularly to a kind of locomotive high-voltage cables.
Background technique
Locomotive carries transport cargo and the task of personnel, the service performance requirement with the development of locomotive, to cable
Higher and higher, not requiring nothing more than it has the characteristics such as oil resistant, superhigh temperature or ultralow temperature, since the cable used on locomotive is mobile frequently,
And often in bending state, the pliability of cable is required also higher and higher.
Currently, the cable that locomotive uses usually is twisted by 5 class cables core, direction of lay is layer by layer on the contrary, and armor is armour
Band armouring (sheet steel plate thickness at least 0.5), the cable core for the cable that locomotive uses are easy hair when being in bending state for a long time
Situations such as having given birth to packet, open circuit, causes to be unable to normal power supply, usually just need replacing some months once, and service life is short, replacement frequency
It is numerous, the working efficiency of locomotive is influenced, problem above is based on, has done some correlative studys in the prior art:
CN108666024A discloses a kind of high-intensitive, wear-resisting type rail transit locomotive cable, including several conductors, described
Several conductors be all made of that the 6th class tinned copper wire and aramid fiber yarn synnema are twisted to be constituted, synnema pitch ratio is not more than 12 times, several to lead
It is enclosed with insulating layer respectively in vitro and constitutes insulated wire cores, the mutually twisted bunchy of insulated wire cores constitutes cable core, successively wraps up outside cable core
Add tinned copper wire and aramid fiber yarn braiding after thering is fireprotection layer, separation layer, composite shielding layer, composite shielding layer to shield using aluminium strip longitudinal wrap
Shielding is constituted, and composite shielding layer is wrapped with armor, and the outer extrusion moulding of armor has nylon sheath wire layer.The cable core of this cable
Intensity is high, is less prone to disconnected core, while having softness well, additionally has good high-low temperature resistant, tear-resistant, resistance to
Mill, shielding and bending features performance.CN104392779A discloses a kind of wear-resisting, high-temperature-resistant, tensile environment-friendly type railway locomotive electricity
Cable, several conductors are all made of to twist again after the 6th class tinned copper wire synnema is twisted and constitute, twist pitch ratio again and be not more than 14 times,
Insulating layer is enclosed with outside several conductors respectively and constitutes insulated wire cores, the mutually twisted bunchy of insulated wire cores constitutes cable core, puts in cable core
One or several steel wires are set, separation layer, restrictive coating are successively enclosed with outside cable core, separation layer is constituted using polyester belt, outside separation layer
Extrusion moulding has a thermoplastic polyurethane elastomer restrictive coating, and insulation uses polyetheretherketonematerials materials, with oil resistant, high temperature resistant, resistance to
Superheated vapor, radiation hardness, reelability be strong, low cigarette, Halogen, fire retardant locomotive cable；One or several steel are placed in cable conductor
Silk has preferable tensile property, can extend cable service life to a certain extent.
Above-mentioned two patents, although improving the wearability of cable to a certain extent, pliability is still to be improved,
In view of this, needing to research and develop a kind of wear-resisting locomotive high-voltage cable for having both improved flexibility.
Utility model content
The purpose of the utility model is to overcome defect existing in the prior art, provide it is a kind of it is wear-resisting, soft, using the longevity
Order high locomotive high-voltage cable.
To achieve the above object, the utility model is achieved by the following technical solution:
A kind of locomotive high-voltage cable comprising cable core, the cable core by multiple conducting wires bundle strand at after strand again by institute
Strand is stated to twist again, the bundle strand direction of strand described in multiply is identical, and when the strand twists again every layer direction of lay all with
The bundle strand direction of the conducting wire is identical, is successively coated with semi-conductive tape on the outside of the cable core from the inside to the outside, shields in semi-conductive adhesive
Cover layer, ethylene, propylene insulating layer, insulation screen, armor and oversheath.
The conducting wire is the 6th class tinned wire as a further improvement of the utility model,.
When twisting again as a further improvement of the utility model, pitch is controlled between 10-18 times.
When twisting again as a further improvement of the utility model, the arrangement mode of strand is normally ordering.
The armor is steel wire woven armored layer as a further improvement of the utility model,.
Technical solution provided by the embodiment of the utility model may include it is following the utility model has the advantages that
A kind of locomotive high-voltage cable provided by the utility model, cable core by multiple conducting wires bundle strand at being twisted again after strand and
At the bundle strand direction of strand described in multiply is identical, and the beam of every layer of direction of lay all with the conducting wire when strand twists again
It is identical to twist direction, the flexibility and flexibility of cable core are considerably increased, to extend the service life of cable；In cable core
The bundle strand direction of strand described in multiply is identical, reduces the frictional force between strand, strengthens the stability of cable.Armor is steel
Silk braiding armor reduces bending radius while protecting cable, keeps cable more soft, further extends cable
Service life；Insulating materials selects ethylene propylene material, and insulation performance is good, and flexibility is good；The locomotive high-voltage cable from
Conductor selection is to cable cored structure, then the mutual cooperation to insulating layer, restrictive coating etc. with conductor structure, formed one it is organic whole
Body, so that cable entirety flexibility greatly improves, various aspects of performance is good, to reach the mesh for extending the service life of cable
's.
Detailed description of the invention
Illustrate the utility model embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it is clear that, to those skilled in the art,
Without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of locomotive high-voltage cable provided by the embodiment of the utility model.
Wherein: 1 cable core, 2 semi-conductive tapes, 3 semi-conductive adhesive internal shields, 4 ethylene, propylene insulating layers, 5 insulation screens,
6 armors, 7 oversheaths.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, in the following with reference to the drawings and specific embodiments
Clear, complete description is carried out to utility model.
A kind of locomotive high-voltage cable as shown in Figure 1 comprising cable core 1, the cable core 1 by multiple conducting wires bundle strand at
It is twisted again by the strand again after strand, the bundle strand direction of strand described in multiply is identical, and every layer when the strand twists again
Direction of lay is all identical as the bundle strand direction of the conducting wire, and 1 outside of cable core is successively coated with semi-conductive tape from the inside to the outside
2, semi-conductive adhesive internal shield 3, ethylene, propylene insulating layer 4, insulation screen 5, armor 6 and oversheath 7.The conducting wire is the
Six class tinned wires make the use of locomotive high-voltage cable in such a way that new structure is in conjunction with ultra-soft tinned wire material
Service life greatly promotes.The cable core 1 is twisted by multiple conducting wires bundle strand at after strand again, the direction of lay and stock of the conducting wire
Cabling direction is identical, considerably increases the flexibility and flexibility of cable core 1, to extend the service life of cable；
The direction of lay of each strand is consistent in cable core 1, reduces the frictional force between strand, strengthens the stability of cable.
Making step is as follows:
S01: by multiple conducting wires bundle strand at strand, and the bundle strand direction of all strands is identical；The number of lead wires of per share strand
Amount can be adjusted as needed.
S02: carrying out multiple strand for the obtained strand of the step S01, and strand direction is consistent with the bundle strand direction of the conducting wire again,
Obtain cable core；The quantity of strand can be adjusted according to the thickness of required cable when twisting again.
S03: semi-conductive tape 2, semi-conductive adhesive inner shield are successively coated in the outside for the cable core 1 that the step S02 is obtained
Layer 3, ethylene, propylene insulating layer 4, insulation screen 5, armor 6 and oversheath 7, obtain locomotive high-voltage cable.
The semi-conductive adhesive internal shield 3 and ethylene, propylene insulating layer 4 can be with the insulation screen 5, three-layer co-extruded lifes
It produces.
Preferably, when twisting again, pitch is controlled between 10-18 times of twisted wire outer diameter, and the arrangement mode of strand is normally ordering.
Using regular stranded mode, pitch controls at 10-18 times, makes cable pitch reduction, increase cable pliability, enhance simultaneously
The bendability of cable core, improves the flex life of high-tension cable, thus extends the service life of cable.
Twisted wire is at the uniform velocity to be advanced with twisted single line along axial screw is rotating, by twisted wire it is axial with angle rotation and twisted wire at the uniform velocity before
It is realized into movement.Using the monofilament conductor of a large amount of very minor diameter in the method, the tiny monofilament of certain amount is first carried out together
Direction bundle strand, bunch are twisted at same direction by more single lines, are belonged to irregular twisted.Single line position is not fixed when bunch,
So the bunch shape being made of 7 or more single lines is not as good as regular twisted wire rounding.But since single line each in bunch is to a direction
Twisting, in bending, sliding surplus is big between each single line, and counter-bending power is small, so the good bending property of bunch.Then again by beam
Line equidirectional multiple strand in concentric manner forms one so that being combined together by the small single line strand of multiply that more tiny monofilament form
A entirety.Every monofilament along bundle strand direction and suffered by the multiple strand direction direction of power be it is identical, bundle strand and it is multiple twist during,
When monofilament advances, the power being subject to is also with advance, so that distance is bigger between monofilament, the frictional force between monofilament is reduced, to make
Obtained cable core is more loose, and internal stress reduces, and between strand and twists interfacial friction reduction, and then keep cable core more soft,
It is stronger to the resistance power of external force, hence it is evident that increase toughness and flexibility, and have better resistance to bend(ing).The cable core
The multiple strand direction of multiply strand is identical, reduces the frictional force between strand, reinforces stability.General per share strand is by 7-54 with single line
It is twisted, cable core 1 is twisted again by 7-61 strands of strands.
Armor is steel wire woven armored layer.The utility model protects cable using steel wire woven armored layer, phase
For steel-tape armouring layer, the steel wire woven armored layer of the application reduces bending radius, makes cable more while protecting cable
Softness, to extend service life when cable is frequently in bending state.The locomotive high-voltage cable is from conductor selection to electricity
Cable core structure, then the mutual cooperation to insulating layer, restrictive coating etc. with conductor structure, form an organic whole, so that cable is whole
Body flexibility greatly improves, and various aspects of performance is good, to achieve the purpose that the service life for extending cable.
Insulating materials selects ethylene propylene material, and insulation performance is good, and flexibility is good；The locomotive high-voltage cable is from leading
Body selection is to cable cored structure, from the adjustment of the material prescription of insulating layer, restrictive coating etc., then to insulating layer, restrictive coating etc. with lead
The mutual cooperation of body structure forms an organic whole, so that cable entirety flexibility greatly improves, various aspects of performance is good,
To achieve the purpose that extend cable service life.
1 nominal section of cable core is for 240 square millimeters:
Embodiment 1
The present embodiment provides a kind of locomotive high-voltage cables and preparation method thereof, and described method includes following steps:
A kind of locomotive high-voltage cable comprising cable core 1, the cable core 1 by multiple conducting wires bundle strand at after strand again by
The strand twists again, and the bundle strand direction of strand described in multiply is identical, and when the strand twists again every layer direction of lay all
Identical as the bundle strand direction of the conducting wire, 1 outside of cable core is successively coated with semi-conductive tape 2, semi-conductive adhesive from the inside to the outside
The armor 6 and oversheath 7 that internal shield 3, ethylene, propylene insulating layer 4, insulation screen 5, steel wire are worked out.
Cable preparation method specifically comprises the following steps:
S01: multiple conducting wires monofilament is stranding into one bundle strand line, altogether 37 strands twisted wire of process, and makes the side of all bundle strand lines
To consistent；
S02: the 37 strands twisted wires that the step S01 is obtained carry out multiple strand, and every layer of strand is made to twist direction and bundle conductor again
Strand direction is consistent, obtains the cable core 1 that arrangement mode is 1+6+12+18；
S03: semi-conductive tape 2, semi-conductive adhesive inner shield are successively coated in the outside for the cable core 1 that the step S02 is obtained
Layer 3, ethylene, propylene insulating layer 4, insulation screen 5, armor 6 and oversheath 7, obtain locomotive high-voltage cable.
The locomotive high-voltage cable application that the present embodiment is obtained is learnt, the locomotive of the present embodiment in locomotive traction through statistics
High-tension cable service life is 1 year.
Comparative example 1
The present embodiment provides a kind of locomotive high-voltage cables, and production method is substantially the same manner as Example 1, the difference is that this reality
It applies in example, multiple conducting wires monofilament is stranding into one bundle strand line, altogether 48 strands twisted wire of process, and 48 strands twisted wires carry out multiple strand, obtains
Arrangement mode is the cable core 1 of 3+9+15+21.
The locomotive high-voltage cable application that the present embodiment is obtained is learnt, the locomotive of the present embodiment in locomotive traction through statistics
High-tension cable service life is 6 months.This embodiment increases with respect to 1 strand quantity of embodiment, it is ensured that 1 nominal section of cable core
It is constant, it needs to reduce strand section, it is relatively preferable to will lead to cable pliability.But because structure is not that normally ordering caused using the longevity
Optimum state is not achieved in life.
Comparative example 2
The present embodiment provides a kind of locomotive high-voltage cables, and production method is substantially the same manner as Example 1, the difference is that this reality
It applies in example, multiple conducting wires monofilament is stranding into one bundle strand line, altogether 27 strands twisted wire of process, and 27 strands twisted wires carry out multiple strand, obtains
Arrangement mode is the cable core 1 of 3+9+15.
The locomotive high-voltage cable application that the present embodiment is obtained is learnt, the locomotive of the present embodiment in locomotive traction through statistics
High-tension cable service life is 6 months.This embodiment is reduced with respect to 1 strand quantity of embodiment, it is ensured that 1 nominal section of cable core
It is constant, it needs to increase strand section, it is relatively poor to will lead to cable pliability.But because structure is not that normally ordering caused using the longevity
Optimum state is not achieved in life.
Comparative example 3
This comparative example provides a kind of locomotive high-voltage cable raw material and preparation method thereof, this comparative example and the basic phase of embodiment 1
Together, direction difference is twisted again, and described method includes following steps:
S01: multiple conducting wires monofilament is stranding into one bundle strand line, altogether 37 strands twisted wire of process, and makes the bundle strand of all conducting wires
Direction is consistent；
S02: the 37 strands twisted wires that the step S01 is obtained carry out multiple strand, make the multiple direction that twists layer by layer on the contrary, being arranged
Mode is the cable core 1 of 1+6+12+18；
S03: semi-conductive tape 2, semi-conductive adhesive inner shield are successively coated in the outside for the cable core 1 that the step S02 is obtained
Layer 3, ethylene, propylene insulating layer 4, insulation screen 5, braided steel wire armor 6 and oversheath 7, obtain locomotive high-voltage cable.
The locomotive high-voltage cable application that this comparative example is obtained is learnt, the locomotive of this comparative example in locomotive traction through statistics
High-tension cable service life is 6 months.
Comparative example 4
This comparative example provides a kind of locomotive high-voltage cable raw material and preparation method thereof, this comparative example and the basic phase of embodiment 1
Together, conducting wire bundle strand direction is different, and described method includes following steps:
S01: multiple conducting wires monofilament is stranding into one bundle strand line, altogether 37 strands twisted wire of process, and the direction of bundle strand line is different；
S02: the 37 strands twisted wires that the step S01 is obtained carry out multiple strand, so that every layer of strand is twisted direction again identical, obtain
Arrangement mode is the cable core 1 of 1+6+12+18；
S03: semi-conductive tape 2, semi-conductive adhesive inner shield are successively coated in the outside for the cable core 1 that the step S02 is obtained
Layer 3, ethylene, propylene insulating layer 4, insulation screen 5, braided steel wire armor 6 and oversheath 7, obtain locomotive high-voltage cable.
The locomotive high-voltage cable application that this comparative example is obtained is learnt, the locomotive of this comparative example in locomotive traction through statistics
High-tension cable service life is 6 months.
Comparative example 5
This comparative example provides a kind of locomotive high-voltage cable and preparation method thereof, this comparative example is substantially the same manner as Example 1, beam
The direction twist, twisted again is different, and described method includes following steps:
S01: multiple conducting wires monofilament is stranding into one bundle strand line, altogether 37 strands twisted wire of process, and the direction of bundle strand line is different；
S02: the 37 strands twisted wires that the step S01 is obtained carry out multiple strand, make the multiple direction that twists layer by layer on the contrary, being arranged
Mode is the cable core 1 of 1+6+12+18；
S03: semi-conductive tape 2, semi-conductive adhesive inner shield are successively coated in the outside for the cable core 1 that the step S02 is obtained
Layer 3, ethylene, propylene insulating layer 4, insulation screen 5, armor 6 and oversheath 7, obtain locomotive high-voltage cable.
The locomotive high-voltage cable application that this comparative example is obtained is learnt, the locomotive of this comparative example in locomotive traction through statistics
High-tension cable service life is 4 months.
Comparative example 6
This comparative example is substantially the same manner as Example 1, unlike, the armor 6 of this comparative example is steel-tape armouring layer.
The locomotive high-voltage cable application that this comparative example is obtained is learnt, the locomotive of this comparative example in locomotive traction through statistics
High-tension cable service life is 2 months.
1 nominal section of cable core of the embodiment 1, comparative example 1, comparative example 2, comparative example 3, comparative example 4 and comparative example 5
It is all 240 square millimeters, and the use condition of the locomotive high-voltage cable is identical.Pass through embodiment 1,1 and of comparative example
Comparative example 2 is it is found that strand can greatly improve the service life of the locomotive high-voltage cable using normally ordering when twisting again.Pass through
Embodiment 1, comparative example 3, comparative example 4 and comparative example 5 are it is found that the bundle strand direction of strand described in multiply is identical, and the strand is multiple
When every layer of direction of lay is all identical as the bundle strand direction of the conducting wire when strand, the use of the locomotive high-voltage cable can be improved
Service life.By embodiment 1 and comparative example 6 it is found that the locomotive high-voltage cable can be significantly improved using steel wire establishment armor 6
Service life.
From the foregoing, it will be observed that the service life of locomotive high-voltage cable provided by the utility model embodiment 1 is obviously prolonged.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or be equal to part of technical characteristic
Replacement；And these are modified or replaceed, the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (5)
1. a kind of locomotive high-voltage cable, which is characterized in that it includes cable core (1), and the cable core (1) is by multiple conducting wires bundle strand
At being twisted again by the strand again after strand, the bundle strand direction of strand described in multiply is identical, and every layer when the strand twists again
Direction of lay it is all identical as the bundle strand direction of the conducting wire, be successively coated on the outside of the cable core (1) and partly lead from the inside to the outside
Electricity band (2), semi-conductive adhesive internal shield (3), ethylene, propylene insulating layer (4), insulation screen (5), armor (6) and oversheath
(7).
2. a kind of locomotive high-voltage cable according to claim 1, which is characterized in that the conducting wire, which is that the 6th class is tin plating, leads
Line.
3. a kind of locomotive high-voltage cable according to claim 1, which is characterized in that when twisting again, pitch is controlled at 10-18 times
Between.
4. a kind of locomotive high-voltage cable according to claim 1, which is characterized in that when twisting again, the arrangement mode of strand is
Normally ordering.
5. a kind of locomotive high-voltage cable according to claim 1, which is characterized in that the armor (6) is braided steel wire
Armor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920493480.8U CN209433934U (en) | 2019-04-12 | 2019-04-12 | A kind of locomotive high-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920493480.8U CN209433934U (en) | 2019-04-12 | 2019-04-12 | A kind of locomotive high-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209433934U true CN209433934U (en) | 2019-09-24 |
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ID=67979345
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| CN201920493480.8U Active CN209433934U (en) | 2019-04-12 | 2019-04-12 | A kind of locomotive high-voltage cable |
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|---|---|
| CN (1) | CN209433934U (en) |
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2019
- 2019-04-12 CN CN201920493480.8U patent/CN209433934U/en active Active
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