CN101604560A - A kind of cable and preparation method thereof - Google Patents
A kind of cable and preparation method thereof Download PDFInfo
- Publication number
- CN101604560A CN101604560A CNA2009101814260A CN200910181426A CN101604560A CN 101604560 A CN101604560 A CN 101604560A CN A2009101814260 A CNA2009101814260 A CN A2009101814260A CN 200910181426 A CN200910181426 A CN 200910181426A CN 101604560 A CN101604560 A CN 101604560A
- Authority
- CN
- China
- Prior art keywords
- conductor
- cable
- lay
- stranded
- signal line
- 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.)
- Pending
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a kind of cable and preparation method thereof.This cable comprises at least 2 conductors that twist together, and the stranded back of each conductor forms intertwist body, is enclosed with insulating barrier in the periphery of intertwist body; This conductor is the lead that has at least 2 heart yearns to twist together with the insulating barrier parcel; The direction of lay of described conductor is identical with stranded mutually insulating core cabling direction.This method comprises: prepare the used single line of each conductor of design in advance according to a conventional method; Press the equidirectional heart yearn of stranded each conductor respectively, and at its peripheral wrap insulate layer; Superscribing restrictive coating in the lump with reinforcement cable or other cables that designs gets final product.Cable of the present invention guarantees that the conductor direction of lay is consistent with insulating core cabling direction, can effectively solve the short circuit and the problem that opens circuit that cable causes because of mobile, contraction, fatigue, and prolongs the life-span of conductor.Through the load fatigue test, after 180000 numbers, still there is not any variation.
Description
Technical field
The present invention relates to a kind of cable and preparation method thereof, relate in particular to a kind of elevator cable and preparation method thereof.
Background technology
At present, the operative norm of conductor is GB/T3956-1997, and name is called " conductor of cable ", does not stipulate the conductor direction of lay in the GB/T3956-1997 standard.Yet, the GB/T3956-1997 standard has replaced GB 3956-83 and two standards of GB3957-83, but clearly stipulated the direction of lay of conductor in the superseded standard GB 3957-83 table 4, so after new standard GB/T3956-1997 implemented, the direction of lay of conductor still was accustomed to quoting the left-hand stranding method of stipulating in the GB 3957-83 standard.
The prepared cable that comes out under this standard, conductor is all stranded based on left-hand, the strand of the insulation heart yearn during stranding is to again all based on dextrad, add existing stranding equipment commonly used be not back twist equipment, so in the process of stranding because the factor of not back twist, cause stranded good conductor to produce back twist situation (conductor that has wrapped up insulation is no exception), make stranded mistake conductor become the vertical pulling state, in use, if be subjected to the pulling force situation, conductor in the vertical pulling state can be subjected to pulling force earlier by a shortest monofilament, and when pulling force acquired a certain degree, the shortest one will at first rupture, pulling force is just put forth effort on second successively then, the 3rd ..., all to break until conductor, formation is opened circuit.
In insulation during the part single wire fracture, the conductor state that is in line in insulation inside, when an end of conductor thrusts insulating barrier when inner, since constantly crooked, make conductor bit by bit sting out insulation, finally form the state of short circuit.As shown in Figure 1, the direction of lay of conductor is a left-hand, and the stranding direction of insulation heart yearn is a dextrad, in use, when being subjected to tension, conductor in the vertical pulling state can be subjected to pulling force earlier by a shortest monofilament, and when pulling force acquired a certain degree, the shortest one will at first rupture, pulling force is just put forth effort on second successively then, the 3rd ..., all to break until conductor, formation is opened circuit.
Generation is opened circuit, the reason of short circuit should be: the conductor strand is inconsistent to direction and insulation heart yearn stranding direction, when stranding, make the conductor back twist, make the single line in the conductor become the vertical pulling state, under stressed and continuous crooked situation, break monofilament successively, produce at last and open circuit or the situation of short circuit.
Summary of the invention
Goal of the invention: at the deficiencies in the prior art, the purpose of this invention is to provide a kind of cable,, prolong the useful life of cable to realize that cable does not in use produce short circuit or short circuit phenomenon.Another object of the present invention provides a kind of method for preparing above-mentioned cable.
Technical scheme: in order to realize the foregoing invention purpose, the technical solution used in the present invention is:
A kind of cable comprises at least 2 conductors that twist together, and the stranded back of each conductor forms intertwist body, is enclosed with insulating barrier in the periphery of intertwist body; Described conductor is the lead that has at least 2 bar insulation heart yearns to twist together with the insulating barrier parcel; The direction of lay of described conductor is identical with stranded mutually insulating core cabling direction.
The direction of lay of described conductor and mutual stranded insulating core cabling direction are left-hand.
The direction of lay of described conductor and mutual stranded insulating core cabling direction are dextrad.
Described cable is the elevator cable that comprises 2～4 power lines and 2～4 signal line; Described 2～4 power lines and 2～4 signal line are stranded mutually, and direction of lay is a left-hand, and the direction of lay of the conductor of the conductor of described 2～4 power lines and 2～4 signal line is left-hand.
Described 2～4 power lines and 2～4 signal line are stranded mutually, and direction of lay is a dextrad, and the direction of lay of the conductor of the conductor of described 2～4 power lines and 2～4 signal line is dextrad.
The present invention proposes by identical direction of lay and come stranded conductor and insulation heart yearn, so just can solve direction of lay and the inconsistent cable short circuit that produces of insulating core cabling direction or the problem that opens circuit because of conductor, having filled up because of GB/T3956-1997 has only stipulated the direction of lay of conductor is left-hand, and do not stipulate the problem that insulating core cabling direction is produced, effectively prolonged the useful life of cable.
A kind of method for preparing above-mentioned cable may further comprise the steps
(1) prepares the pre-designed used single line of each conductor according to a conventional method;
(2) press the equidirectional heart yearn of stranded each conductor respectively, and superscribe insulating barrier in its periphery;
(3) press the stranded insulation heart yearn of stranded conductor equidirectional;
(4) with strengthen cable or other cables that designs and superscribe restrictive coating in the lump after, promptly prepare cable of the present invention.
Preparation method of the present invention, employed material and basic preparation method are material commonly used and method, have done on this basis much and have comparatively effectively improved, and have guaranteed that especially the direction of lay of conductor is identical with insulating core cabling direction.In addition, can also increase separator between lead and lead reduces between the lead because of the short circuit problem that shields or other reasons produced.
Beneficial effect: cable of the present invention, the conductor direction of lay that has changed the cable commonly used of GB/T3956-1997 defined is the way of left-hand, make and guarantee conductor direction of lay and consistent the getting final product of insulating core cabling direction, so just can effectively solve the short circuit of cable and the problem that opens circuit, and prolong the life-span of conductor.Through the load fatigue test, after 180000 numbers, still there is not any variation, the insulating surface of cable is smooth; Symptoms such as the conductor lay is even, smooth, nothing is secretly disconnected.Preparation method of the present invention, step is few, realizes that easily equipment investment is few, and the economic benefit height is easy to realize industrialization.
Description of drawings
Fig. 1 is a conductor direction of lay and the different cable short circuit and the schematic diagrames that opens circuit of insulation heart yearn stranding direction in the prior art.
Fig. 2 is the conductor and the insulating core cabling direction schematic diagram of cable of the present invention
Fig. 3 is an elevator cable structural representation of the present invention.
Embodiment
The present invention will be further explained below in conjunction with accompanying drawing.
As shown in Figure 1, be conductor direction of lay and the different cable short circuit and the schematic diagrames that opens circuit of insulation heart yearn stranding direction in the prior art.
As shown in Figure 2, be the direction of lay schematic diagram of the conductor of cable of the present invention.Owing to stipulated that the stranding direction of part cable is necessary for dextrad in the cable standard, and the conductor direction of lay is not expressly provided in cable standard, in order to guarantee stranding direction conformance with standard, so the conductor direction of lay is done unified the adjustment, the promptly unified dextrad that is adjusted into, make the conductor direction of lay consistent, be the dextrad twisted cable 10 of Fig. 2 with the stranding direction; Simultaneously, can also all be adjusted into left-hand to the direction of lay of conductor and insulating core cabling direction, be the left-hand twisted cable 9 of Fig. 2.
As shown in Figure 3, be elevator cable structural representation of the present invention.This elevator cable comprises power supply signal line 1, coaxial cable 5 and 2 line feeders 7; Line feeder 7 is some steel wires with the insulating barrier parcel; Coaxial cable 5 is with the coaxial cord 4 of screen parcel, is provided with insulating barrier between electric wire 4 and screen.Power supply signal line 1 comprise mutually stranded 2 power lines 2 and 3,2 power lines 2 of 2 signal line and 2 signal line 3 each twist together by some heart yearns, and direction of lay is identical, is all left-hand or dextrad; Article 2, the direction of lay of power line 2 and 2 signal line 3 is identical with the direction of lay of their conductor, promptly is all left-hand or dextrad.Between power supply signal line 1 and coaxial cable 5, also be provided with separator.According to actual needs, the bar number of power line 2 and holding wire 3 can suitably increase and decrease, and is advisable for 2～4.
With the elevator cable among Fig. 3 is the preparation method that example is explained cable of the present invention, and the preparation method of other cable is identical therewith.This method may further comprise the steps:
(1) prepares the heart yearn of each conductor such as power line, holding wire of elevator cable according to a conventional method;
(2) be left-hand or stranded each conductor of dextrad difference by equidirectional, and superscribe insulating barrier in its periphery; The material of insulating barrier, thickness and preparation method are common used material and method;
(3) the power line conductor and the holding wire that prepare is stranded by the equidirectional of conductor, promptly be all left-hand or dextrad;
(4) with strengthen cable or other cables that designs, for example: concentric conductor, superscribe restrictive coating in the lump after, promptly prepare elevator cable of the present invention.
In preparation process, can between power supply signal line and concentric conductor, be provided with separator.
Cable of the present invention, the conductor direction of lay that has changed the cable commonly used of GB/T3956-1997 defined is the way of left-hand, make and guarantee conductor direction of lay and consistent the getting final product of insulating core cabling direction, the effective like this short circuit of cable and the problem that opens circuit of having solved effectively prolonged life-span of conductor.Through the load fatigue test, after 180000 numbers, still there is not any variation, the insulating surface of cable is smooth; Symptoms such as the conductor lay is even, smooth, nothing is secretly disconnected.And the inconsistent cable of direction of lay of common conductor direction of lay and conductor core wire through the load fatigue test, after 17000 numbers, short circuit or short circuit phenomenon will occur.
Claims (6)
1, a kind of cable comprises at least 2 conductors that twist together, and the stranded back of each conductor forms intertwist body, is enclosed with insulating barrier in the periphery of intertwist body; Described conductor is the lead that has at least 2 heart yearns to twist together with the insulating barrier parcel; It is characterized in that: the direction of lay of described conductor is identical with stranded mutually insulating core cabling direction.
2, cable according to claim 1 is characterized in that: the direction of lay of described conductor and mutual stranded insulating core cabling direction are left-hand.
3, cable according to claim 1 is characterized in that: the direction of lay of described conductor and mutual stranded insulating core cabling direction are dextrad.
4, cable according to claim 1 is characterized in that: described cable is the elevator cable that comprises 2～4 power lines and 2～4 signal line; Described 2～4 power lines and 2～4 signal line are stranded mutually, and direction of lay is a left-hand, and the direction of lay of the conductor of the conductor of described 2～4 power lines and 2～4 signal line is left-hand.
5, cable according to claim 4 is characterized in that: described 2～4 power lines and 2～4 signal line are stranded mutually, and direction of lay is a dextrad, and the direction of lay of the conductor of the conductor of described 2～4 power lines and 2～4 signal line is dextrad.
6, a kind of method for preparing the described cable of claim 1 is characterized in that: may further comprise the steps
(1) prepares the pre-designed used single line of each conductor according to a conventional method;
(2) press the equidirectional heart yearn of stranded each conductor respectively, and superscribe insulating barrier in its periphery;
(3) press the stranded insulation heart yearn of stranded conductor equidirectional;
(4) with strengthen cable or other cables that designs and superscribe restrictive coating in the lump after, promptly prepare cable of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101814260A CN101604560A (en) | 2009-07-16 | 2009-07-16 | A kind of cable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101814260A CN101604560A (en) | 2009-07-16 | 2009-07-16 | A kind of cable and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101604560A true CN101604560A (en) | 2009-12-16 |
Family
ID=41470248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101814260A Pending CN101604560A (en) | 2009-07-16 | 2009-07-16 | A kind of cable and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101604560A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500609A (en) * | 2013-09-29 | 2014-01-08 | 浙江一舟电子科技股份有限公司 | Special surveillance video comprehensive line for elevator |
| WO2015096208A1 (en) * | 2013-12-25 | 2015-07-02 | 深圳市联嘉祥科技股份有限公司 | High definition elevator monitoring cable and manufacturing method therefor |
-
2009
- 2009-07-16 CN CNA2009101814260A patent/CN101604560A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500609A (en) * | 2013-09-29 | 2014-01-08 | 浙江一舟电子科技股份有限公司 | Special surveillance video comprehensive line for elevator |
| CN103500609B (en) * | 2013-09-29 | 2016-01-20 | 浙江一舟电子科技股份有限公司 | Special surveillance video comprehensive line for elevator |
| WO2015096208A1 (en) * | 2013-12-25 | 2015-07-02 | 深圳市联嘉祥科技股份有限公司 | High definition elevator monitoring cable and manufacturing method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104134483A (en) | Stranded carbon fiber composite core soft aluminum wire and fabrication method thereof | |
| CN201527811U (en) | Novel cable for coal winning machine | |
| CN104376901A (en) | Aluminum conductor for automotive wiring | |
| CN201965966U (en) | Alternating current charging cable for electric automobile | |
| CN205487470U (en) | Self -supporting electric block cable | |
| CN202230765U (en) | Reel power mobile flexible cable for a port machine | |
| CN201965954U (en) | Direct current charging cable for electric automobile | |
| CN101604560A (en) | A kind of cable and preparation method thereof | |
| CN104835563A (en) | Highly-flexible wear-resistant bending-resistant robot encoder cable | |
| CN105355276B (en) | A kind of preparation process of electric car conduction charging system cable | |
| CN204407028U (en) | Automotive wiring harnesses aluminum conductor | |
| CN204614482U (en) | High soft resistance to torsion resist bending robot composite cable | |
| CN208655313U (en) | Cage disk connection twists equipment | |
| CN201556440U (en) | Elevator cable | |
| CN103578632A (en) | Shielding rubber-jacketed flexible cable for coal cutter | |
| CN204029415U (en) | A kind of soft cable of coal mining machine | |
| CN201638584U (en) | Cable | |
| CN206574536U (en) | A kind of high-strength aluminum alloy power cable | |
| CN201965955U (en) | Alternating-current charging cable for electric automobile | |
| CN104700965A (en) | Preparation method and compacting stranding device of compacting soft structure conductor | |
| CN203520978U (en) | Shielding rubber-jacketed flexible cable for coal cutter | |
| CN202549462U (en) | Insulation overhead cable | |
| CN208126904U (en) | Tensile wear-resistant warp resistance removal cable | |
| CN106251983A (en) | A kind of plastic cable production technology | |
| CN206849554U (en) | A kind of composite cable with tension function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20091216 |