CN202677883U - Metal shielded monitoring type trailing cable for mining - Google Patents
Metal shielded monitoring type trailing cable for mining Download PDFInfo
- Publication number
- CN202677883U CN202677883U CN2012203434013U CN201220343401U CN202677883U CN 202677883 U CN202677883 U CN 202677883U CN 2012203434013 U CN2012203434013 U CN 2012203434013U CN 201220343401 U CN201220343401 U CN 201220343401U CN 202677883 U CN202677883 U CN 202677883U
- Authority
- CN
- China
- Prior art keywords
- inner sheath
- outside
- supervision
- core
- power 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model relates to a metal shielded monitoring type trailing cable for mining, comprising a plurality of power wire core units, a first inner sheath extruded outside the power line core units, at least one monitoring wire core stranded outside the first inner sheath, a second inner sheath extruded outside the monitoring wire core, a woven reinforcement layer woven outside the second inner sheath, and an outer sheath extruded outside the woven reinforcement layer. The cabling lay ratio of the plurality of power wire core units is less than 12, the first inner sheath is an ethylene-propylene rubber inner sheath, the second inner sheath is a chloroprene rubber inner sheath, the woven reinforcement layer is a high-strength polyester fiber reinforcement layer, and the outer sheath is a chloroprene rubber outer sheath. According to the utility model, the bending performance, tensile strength and torsion resistance of the cable can be ensured; and the cable has good ultraviolet-light resistance, oil resistance, low temperature resistance, wear resistance and the like and has a longer service life.
Description
Technical field
The utility model relates to a kind of mining metal shielding supervision type trailing cable, particularly relates to a kind of rated voltage 12/20kV-26/35kV mining metal shielding supervision type trailing cable.
Background technology
At present, mining metal shielding supervision type trailing cable is multiplex in the mining machinery field, has following shortcoming:
1, product is that the open air is laid, usually can under severe environmental conditions, use, as: expose to the sun and rain for a long time, day sudden and violent night is cold, frost and snow is freezing, ultraviolet, ozone, etc. the erosion of natural conditions, hydraulic performance decline is than comparatively fast, useful life is shorter;
2, cable is between the operating period, and cable must bear stretching resistance, reverse and bent rich fatigue, causes insulation and sheath material hydraulic performance decline very fast, and useful life is shorter; At present this type of cable average half a year to one year must be with changing once; Mining metal shielding supervision type trailing cable insulated wire cores electrical property neither be too high;
3, mining metal shielding supervision type trailing cable is higher to the sheath material requirement, and the tensile strength of cable, resistance to low temperature, ageing-resistant performance, UV resistant etc. performance is relatively all poor.
Summary of the invention
The purpose of this utility model provides a kind of mining metal shielding supervision type trailing cable, be applicable to the application scenario of high mechanical stress, mainly use large-scale shield machine, rail mounted gantry crane, stacker-reclaimer, phase shifting transformer and other heavy lift equipments.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of mining metal shielding supervision type trailing cable, comprise many power line core units, be extruded in the first inner sheath of described power line core unit outside, be stranded at least one outer supervision core of described the first inner sheath, be extruded in the second inner sheath of described supervision core outside, the oversheath that is woven in the braiding reinforced layer of described the second inner sheath outside and is extruded in described braiding reinforced layer outside, the stranding lay ratio of many described power line core units is not more than 12, described the first inner sheath is the ethylene-propylene rubber inner sheath, described the second inner sheath is the neoprene inner sheath, described braiding reinforced layer is high tenacity polyester fiber silk reinforced layer, and described oversheath is the neoprene oversheath.
Preferably, described power line core unit comprise the core conductor, be coated on described core conductor outside conductor screen, be coated on the insulation of described conductor screen outside and be coated on the outside insulation shielding of described insulation.
Further preferably, described core conductor is tinned copper wire or bare copper wire.
Further preferably, the material of described insulation is ethylene-propylene rubber.
Preferably, described power line core unit is provided with 3, is filled with semiconductive material between 3 described power line core units.
Preferably, described supervision core is provided with 3,3 described supervision cores evenly are stranded in described the first inner sheath outside by 120 degree, and the stranded lay ratio of 3 described supervision cores is not more than 12, and the outside of described supervision core is surrounded with the semiconductive band.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1, bending property, tensile property, the anti-twisting property of cable have been guaranteed;
2, possessed good UV resistant, oil resistant, the performance such as low temperature resistant, wear-resisting, the useful life of having improved cable.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is process chart of the present utility model.
Wherein: 1, power line core unit; 10, core conductor; 11, conductor screen; 12, insulation; 13, insulation shielding; 2, semiconductive material; 3, band; 4, the first inner sheath; 5, monitor core; 6, the second inner sheath; 7, braiding reinforced layer; 8, oversheath.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
A kind of mining metal shielding supervision type trailing cable as shown in Figure 1,
Model voltage specification: MEPTJB 26/35kV, 3 * 25+3 * 25/3+3 * 2.5.
Specify: 3 core 25mm
2
Nominal cross, 25mm
2
Nominal cross ground core 3 five equilibriums, 3 core 2.5mm
2
Monitor core, electric pressure 26/35kV.
Concrete scheme: as shown in Figure 1:
The insulation shielding 13 that power line core unit 1 comprises core conductor 10, is coated on the conductor screen 11 of core conductor 10 outsides, is coated on the insulation 12 of conductor screen 11 outsides and is coated on insulation 12 outsides, wherein:
Core conductor 10: tinned copper wire or bare copper wire;
Structure: in order to ensure the useful life of cable, must improve whole cable flexibility and bendability, the structural design of conductor has largely determined such performance; The conductor filament diameter is thinner, and flexibility is better; Conductor adopts forward and reverse stranded between layers, guarantees that simultaneously every layer all has less lay (the outermost layer lay is not more than 12 times, and inferior skin is not more than 14 times, and by that analogy) bending property is better;
Insulation 12: high-performance ethylene-propylene rubber;
Performance requirement:
1, temperature resistant grade must can bear the variation of day and night temperature like this between-40 ℃～90 ℃, also can use in the summer of heat and the winter of severe cold simultaneously;
2, good electric property and excellent mechanical and physical performance;
Total stranding: with power line core unit 1, core according to suitable lay ratio together stranding;
The stranding of 3 power line core units 1, the structural design of this operation has important effect to the bending property of cable, General Requirements stranding lay ratio is not more than 12 times, to guarantee whole cable bending property and internal stress even action, adopt semiconductive material 2 to fill in the middle of 3 power line core units;
The first inner sheath 4: be extruded in power line core unit 1 outside, be high-performance ethylene-propylene rubber, ensure into cable core and the electrical insulation properties that monitors layer,
Performance requirement:
1, temperature resistant grade must can bear the variation of day and night temperature like this between-40 ℃～90 ℃, also can use in the summer of heat and the winter of severe cold simultaneously;
2, good electric property and excellent mechanical and physical performance;
Monitor core 5:
This structural design has important supervision effect to the cable cover(ing) integrality, three tin-coated coppers supervision of General Requirements core evenly is stranded in around the first inner sheath 4 by 120 °, stranded lay ratio is not more than 12 times, pilot wire in-core skin all adopts the semiconductive band closely wrapped, to ensure the electrically conducting of semi-conductive layer;
The second inner sheath 6: be extruded in and monitor core 5 outsides, be the speciality CR sheath material;
Oversheath 8: speciality CR sheath material;
Performance requirement:
1, temperature resistant grade must can bear the variation of day and night temperature like this between-40 ℃～90 ℃, also can use in the summer of heat and the winter of severe cold simultaneously;
2, have good UV resistant and ozone resistance, can guarantee like this under long-term Exposure to Sunlight environment, sheath can quick aging, the useful life of improving cable;
3, possesses good wet-hot aging performance;
4, possess good anti-wear performance and good mechanical and physical performance;
Braiding reinforced layer 7: be woven in the second inner sheath 6 outsides, be the high tenacity polyester fiber silk;
For improving the tensile strength of whole cable, we are melted between the second inner sheath 6 and the oversheath 8 at the second inner sheath 6 and 8 designs of oversheath one deck braiding reinforced layer 7, have very large tensile strength, can eliminate or reduce the stress of cable when reversing, improve the useful life of cable.
Technique as shown in Figure 2, for improving the integraty of the second inner sheath 6, braiding reinforced layer 7 and oversheath 8, when formulating the second inner sheath 6 sulfuration process, the control state of cure (vulcanization) is between 40%--60%, like this in reinforced layer braiding process, the high tenacity polyester fiber silk easily embeds in the second inner sheath 6, in crowded oversheath 8 processes, carry out complete cure, the second inner sheath 6 is equivalent to carry out 2 sulfurations, so just guarantee the integraty of the second inner sheath 6, braiding reinforced layer 7 and oversheath 8, improved whole tensile strength.
For satisfying the requirement of 35kV voltage levels, cable carries out partial discharge test under 45kV, and discharge capacity should be not more than 20pC.The cable sheath material oxygen index is greater than 42, and fire resistance satisfies single vertical, load, the requirement of bunchy category-A burning test among the MT386.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (6)
1. a mining metal shields supervision type trailing cable, it is characterized in that: comprise many power line core units, be extruded in the first inner sheath of described power line core unit outside, be stranded at least one outer supervision core of described the first inner sheath, be extruded in the second inner sheath of described supervision core outside, the oversheath that is woven in the braiding reinforced layer of described the second inner sheath outside and is extruded in described braiding reinforced layer outside, the stranding lay ratio of many described power line core units is not more than 12, described the first inner sheath is the ethylene-propylene rubber inner sheath, described the second inner sheath is the neoprene inner sheath, described braiding reinforced layer is high tenacity polyester fiber silk reinforced layer, and described oversheath is the neoprene oversheath.
2. mining metal shielding supervision type trailing cable according to claim 1 is characterized in that: the insulation shielding that described power line core unit comprises the core conductor, is coated on the conductor screen of described core conductor outside, is coated on the insulation of described conductor screen outside and is coated on described insulation outside.
3. mining metal according to claim 2 shields supervision type trailing cable, and it is characterized in that: described core conductor is tinned copper wire or bare copper wire.
4. mining metal according to claim 2 shields supervision type trailing cable, and it is characterized in that: the material of described insulation is ethylene-propylene rubber.
5. mining metal according to claim 1 shields supervision type trailing cable, and it is characterized in that: described power line core unit is provided with 3, is filled with semiconductive material between 3 described power line core units.
6. mining metal according to claim 1 shields supervision type trailing cable, it is characterized in that: described supervision core is provided with 3,3 described supervision cores evenly are stranded in described the first inner sheath outside by 120 degree, the stranded lay ratio of 3 described supervision cores is not more than 12, and the outside of described supervision core is surrounded with the semiconductive band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203434013U CN202677883U (en) | 2012-07-16 | 2012-07-16 | Metal shielded monitoring type trailing cable for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203434013U CN202677883U (en) | 2012-07-16 | 2012-07-16 | Metal shielded monitoring type trailing cable for mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202677883U true CN202677883U (en) | 2013-01-16 |
Family
ID=47498769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203434013U Expired - Fee Related CN202677883U (en) | 2012-07-16 | 2012-07-16 | Metal shielded monitoring type trailing cable for mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202677883U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928100A (en) * | 2013-09-29 | 2014-07-16 | 安徽航天电缆集团有限公司 | Special cable for ship drag chain |
| CN106935318A (en) * | 2015-12-31 | 2017-07-07 | 湖南华菱线缆股份有限公司 | A kind of anti-twist Heavy-duty cables of shock resistance and its manufacture method |
| CN106935319A (en) * | 2015-12-31 | 2017-07-07 | 湖南华菱线缆股份有限公司 | A kind of multi-functional trailing cable and its manufacture method |
-
2012
- 2012-07-16 CN CN2012203434013U patent/CN202677883U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928100A (en) * | 2013-09-29 | 2014-07-16 | 安徽航天电缆集团有限公司 | Special cable for ship drag chain |
| CN106935318A (en) * | 2015-12-31 | 2017-07-07 | 湖南华菱线缆股份有限公司 | A kind of anti-twist Heavy-duty cables of shock resistance and its manufacture method |
| CN106935319A (en) * | 2015-12-31 | 2017-07-07 | 湖南华菱线缆股份有限公司 | A kind of multi-functional trailing cable and its manufacture method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202677944U (en) | Mining metal shielded trailing cable | |
| CN205050594U (en) | Low temperature resistant antitorque commentaries on classics multicore wind energy control cable | |
| CN201527811U (en) | Novel cable for coal winning machine | |
| CN202677883U (en) | Metal shielded monitoring type trailing cable for mining | |
| CN204480683U (en) | A kind of high-temperature-resistant, tensile insulated cable | |
| CN203910320U (en) | Cold-resistant, twist-resistant and flame-retardant wind energy power cable | |
| CN203573670U (en) | Cable special for construction elevator | |
| CN202677941U (en) | Metal shielded soft rubber cable for mining | |
| CN202694975U (en) | Power cable special for oil well | |
| CN105185445B (en) | A kind of low temperature resistant anti-torsion multicore wind energy control cable and its manufacture method | |
| CN203366834U (en) | Rubber sleeve flexible cable for coal cutter | |
| CN204029421U (en) | A kind of light-type optical fiber composite submarine cable | |
| CN203760189U (en) | Soft type tow chain system control electric cable having 450/750 V rated voltage | |
| CN203377000U (en) | Chariot-used CAT5e cable | |
| CN203118658U (en) | Torsion resistant cable used for wind power generation equipment | |
| CN202677943U (en) | Metal shielded monitoring type soft rubber cable for mining | |
| CN202905248U (en) | Wear resistant cable for ladle vehicle | |
| CN203950566U (en) | The special-purpose compensating cable of a kind of high temperature resisting thermocouple | |
| CN204215738U (en) | A kind of polytetrafluoroethyl-ne propylene insulation armoured soft cable | |
| CN205038999U (en) | Use power cable in pit | |
| CN204480767U (en) | A kind of tensile type electric cable for coal mining machine | |
| CN202196609U (en) | High tensile power cable | |
| CN203217981U (en) | Cable used for coal mining machine with 1.9/3.3kV or lower rated voltage | |
| CN203673878U (en) | Single-core rubber-jacketed flexible cable for medium voltage wind power generation | |
| CN204760077U (en) | Flexible control cable is used to wind power generation equipment |
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: 20130116 Termination date: 20180716 |