CN112466515A - Thermal fluorescence coal mining machine cable - Google Patents
Thermal fluorescence coal mining machine cable Download PDFInfo
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- CN112466515A CN112466515A CN202011288997.7A CN202011288997A CN112466515A CN 112466515 A CN112466515 A CN 112466515A CN 202011288997 A CN202011288997 A CN 202011288997A CN 112466515 A CN112466515 A CN 112466515A
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- 238000005065 mining Methods 0.000 title claims abstract description 26
- 229920001971 elastomer Polymers 0.000 claims abstract description 44
- 239000004020 conductor Substances 0.000 claims abstract description 31
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 30
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 claims description 40
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- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 8
- 239000004760 aramid Substances 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 7
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 claims description 7
- 229940069446 magnesium acetate Drugs 0.000 claims description 7
- 235000011285 magnesium acetate Nutrition 0.000 claims description 7
- 239000011654 magnesium acetate Substances 0.000 claims description 7
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 claims description 6
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- 238000009941 weaving Methods 0.000 claims description 6
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
Abstract
The invention discloses a thermotropic fluorescence coal mining machine cable, which comprises a cable core, an aramid fiber braided layer, an outer sheath and an outer sheath, the aramid fiber braided layer, the outer sheath and the outer sheath wrap the cable core from inside to outside, the cable core is formed by stranding a plurality of insulated wires and a control wire core, the insulating wire core comprises a conductor and an insulating layer wrapped outside the conductor, the control wire core is formed by twisting a middle pad and a plurality of control wires, the control line comprises aramid fiber tows, an inner rubber layer, a conducting wire layer and outer rubber which are arranged from inside to outside, the cable of the thermoluminescent coal mining machine has the characteristics of long service life, thermoluminescence, bending resistance and high strength and impact resistance by improving the structure of the conductor, the insulating braided layer, the control line structure and the outer sheath, and is very suitable for coal mining working conditions.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a thermal fluorescence coal mining machine cable.
Background
The coal mining machine is a large complex system integrating machinery, electricity and hydraulic pressure, the working environment is severe, and if a fault occurs, the whole coal mining work is interrupted, so that huge economic loss is caused. The coal mining machine cable is used as electric power and signal transmission equipment, the working condition is harsh, the coal mining machine cable can be impacted by gangue and coal blocks and scraped and extruded by various machines in the using process, meanwhile, the coal mining machine cable needs to be bent frequently in the using process, a control line is easy to break, light rays in a mine cavity are dim and difficult to identify, and the traditional fluorescent cable can excite electrons to emit light for a short time after being irradiated by strong light, so that the light emission lasts, and the light pollution in a dim environment is caused.
Disclosure of Invention
The invention aims to solve the problems of the coal mining machine cable in the prior art, and provides a thermotropic fluorescence coal mining machine cable which is suitable for coal mining working conditions.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a thermotropic fluorescence coal-winning machine cable, includes cable core, aramid fiber silk weaving layer, oversheath and oversheath are by interior to outer parcel cable core, the cable core is formed by a plurality of insulated wire and control core transposition.
Specifically, the insulated wire core comprises a conductor and an insulating layer wrapped outside the conductor, the conductor is formed by twisting an aramid fiber wire reinforcement and a plurality of tinned copper wires, a polyester belt is wrapped outside the conductor, the conductor resistance meets the GB/T3956-2008 standard specification, the conductor is a fifth type movable tinned copper stranded wire in the same direction, the aramid fiber wire is filled in the center, the tensile flexibility and the flexibility of the conductor can be greatly improved, and the core breakage is prevented.
Further, the insulating layer is located the polyester and takes the outside, the material of insulating layer is high strength ethylene propylene rubber, can make the sinle silk have excellent electrical insulation performance, and the insulating layer is around package one deck semi-conductive area outward, and the yarn differentiation of putting colors, the outside of insulating layer still sets up the shielding layer, the shielding layer is woven by aramid fiber silk and tinned copper wire mixture and is formed, promotes the interference killing feature of conductor, and the shielding layer is located the semi-conductive area outside.
Further, the control sinle silk is formed by well pad and a plurality of control line transposition, and the transposition pitch diameter ratio is not more than 6, and the direction is right, and wherein well pad is the rubber strip after vulcanizing, and the diameter is 7.0mm, the control sinle silk outside is around covering one deck rubber strap, is the left direction around covering the direction.
Further, the control line comprises an aramid fiber tow, an inner rubber layer, a conducting wire layer and an outer rubber layer. The inner rubber layer, the conducting wire layer and the outer rubber layer are wrapped with aramid fiber tow bundles from inside to outside. The wire layer is formed by winding a control wire, and the control wire adopts a winding structure, so that the control wire 22 is resistant to bending, the core breaking is prevented, and the service life of the control wire is prolonged.
Preferably, the aramid fiber tows are formed by stranding 12 strands of 1000D aramid fibers, and the stranding pitch is 20-25 mm.
Preferably, the inner rubber layer is made of ethylene propylene rubber, and the outer diameter of the inner rubber layer is 3.1mm-3.3 mm.
Preferably, the conductor layer is formed by winding 56 control conductors with a nominal diameter of 0.3mm, the winding pitch is 13.0mm-15.0mm, and the winding direction is right.
Preferably, the outer rubber layer is made of ethylene propylene insulating rubber, the outer diameter of the outer rubber layer is not more than 7.0mm, and the outer rubber layer is extruded to longitudinally wrap the isolation paper tape.
Furthermore, the cable core is formed by twisting three insulating wire cores and a control wire core, the pitch-diameter ratio is not more than 7.5, the twisting direction is right, the whole structure is tighter without filling, the structural stability and the impact resistance are improved, and a layer of water blocking tape is wrapped outside the cable core to prevent water from permeating into the cable core.
Preferably, the aramid fiber silk weaving layer is formed by weaving and reinforcing 2 1000D aramid fiber silks, so that the overall tensile and impact resistance of the cable is improved.
Preferably, the inner sheath is made of chlorinated polyethylene, and the wall thickness of the inner sheath is 6.9mm-7.2mm, so that the cable has the function of protecting the inner cable core with high strength.
Preferably, the raw material of the outer sheath 5 comprises dimethyl terephthalate (DMT), 1, 4-Butanediol (BG), Polytetrahydrofuran (PTMG), thermoluminescent phosphor (TL), tetrabutyl titanate and magnesium acetate, Irganox1098 and knooke 168, wherein the dimethyl terephthalate (DMT), the 1, 4-Butanediol (BG), and the Polytetrahydrofuran (PTMG) are used as monomers, the thermoluminescent phosphor (TL), tetrabutyl titanate and magnesium acetate are used as catalysts, and the Irganox1098 and the knooke 168 are used as antioxidants. Wherein the weight ratio of 1, 4-Butanediol (BG), dimethyl terephthalate (DMT) to Polytetrahydrofuran (PTMG) is 1.4: 1: 1. the thickness of the outer sheath is controlled between 4.3mm and 5.0mm
The material of the outer sheath 5 adopts a two-step method of ester exchange and melt polycondensation to synthesize the PBT/PTMG polyether ester elastomer material, and Polytetrafluoroethylene (PTEF) is introduced into the synthesized polyether ester to form a TPEE thermoluminescent material, so that the outer sheath 5 has good heat resistance, high wear resistance and high chemical stability. The temperature range of the TPEE thermoluminescent material is-200-260 ℃, so that the cable has good environmental adaptability and good weather resistance. The TPEE thermoluminescent material does not have a luminescence property, but can transmit thermoluminescence, convert the heat of the cable in operation into fluorescence for release, and enable the cable to be identified in the light dim and dark of a mine hole without light pollution when not in operation.
The invention has the beneficial effects that:
1. the inner sheath of the thermotropic fluorescence coal mining machine cable is made of high-strength chlorinated polyethylene materials, and the sheath is made of polyether type modified thermoplastic elastomer, so that the cable sheath can completely meet the requirements of impact, smashing and scraping during working, the overall mechanical performance of the cable is ensured to be improved, and the service life of the cable is greatly prolonged.
2. The control wire of the thermotropic fluorescence coal mining machine cable adopts a winding structure, so that the control wire is resistant to bending, the core breaking of the control wire is prevented, and the cable has the characteristic of long service life.
3. The outer sheath of the thermoluminescent shearer cable is a TPEE thermoluminescent material processed by PTFE and PBT/PTMG polyether ester elastomer materials, can convert heat generated during the operation of the cable into fluorescence to be released, so that the cable can be identified in dim light of a mine hole, and can not emit light when not working, thereby avoiding light pollution.
In conclusion, the thermoluminescent coal mining machine cable has the characteristics of long service life, thermoluminescent property, bending resistance and high strength and impact resistance by improving the conductor structure, the insulating braid layer, the control wire structure and the outer sheath, and is very suitable for coal mining working conditions.
Drawings
FIG. 1 is a schematic structural diagram of the cable of the fluorescence-induced shearer;
FIG. 2 is a schematic structural diagram of an insulated wire core of the cable of the thermal fluorescence coal mining machine;
fig. 3 is a schematic structural diagram of the cable control line of the thermal fluorescence shearer.
In the figure: 1. an insulated wire core; 2. a control wire core; 3. an aramid fiber yarn braid layer; 4. an inner sheath; 5. an outer sheath; 11. a conductor; 12. an insulating layer; 13. a shielding layer; 21. a middle pad; 22. a control line; 23. a rubber band; 221. aramid fiber tows; 222. an inner rubber layer; 223. a conductor layer; 224. an outer rubber layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a thermotropic fluorescence coal-winning machine cable, includes cable core, aramid fiber silk weaving layer 3, oversheath 4 and oversheath 5 from interior to exterior parcel cable core, the cable core is formed by the transposition of a plurality of insulated wire and control core 2.
Specifically, referring to fig. 2, the insulated wire core 1 comprises a conductor 11 and an insulating layer 12 wrapped outside the conductor, wherein the conductor 11 is formed by twisting an aramid fiber wire reinforcement and a plurality of tinned copper wires, a polyester tape is wrapped outside the conductor 11, and the conductor resistance meets the standard regulation of GB/T3956-2008.
Further, the material of insulating layer 12 is high strength ethylene propylene rubber, can make the sinle silk have excellent electrical insulation performance, and insulating layer 12 wraps the semi-conductive area of one deck outward, and the yarn of giving off colour distinguishes, the outside of insulating layer 12 still sets up shielding layer 13, shielding layer 13 is woven by aramid fiber silk and tinned copper wire mixture and is formed, promotes conductor 11's interference killing feature, and shielding layer 13 is located the semi-conductive area outside.
Further, referring to fig. 1, the control core 2 is formed by middle pad 21 and six control wires 22 transposition, and the transposition pitch diameter ratio is not more than 6, and the direction is right, and wherein middle pad 21 is the rubber strip after the vulcanization, and the diameter is 7.0mm, 2 outsides of control core are around covering a layer rubber strap 23, are the left direction around the covering direction.
Further, referring to fig. 3, the control wire 22 includes an aramid tow 221, an inner rubber layer 222, a conductive wire layer 223, and an outer rubber layer 224. The inner rubber layer 222, the conducting wire layer 223 and the outer rubber layer 224 wrap the aramid tow bundles 221 from inside to outside. The wire layer 223 is formed by winding a control wire, and the control wire adopts a winding structure, so that the control wire 22 is resistant to bending, core breakage is prevented, and the service life of the control wire 22 is prolonged.
In the embodiment, the aramid fiber tows 221 are formed by stranding 12 strands of 1000D aramid fibers, and the stranding pitch is 20-25 mm; the inner rubber layer 222 is made of ethylene propylene rubber, the outer diameter of the inner rubber layer 222 is 3.1mm-3.3mm, the wire layer 223 is formed by winding 56 control wires with the nominal diameter of 0.3mm, the winding pitch is 13.0mm-15.0mm, and the winding direction is right. The outer rubber layer 224 is made of ethylene propylene insulating rubber, the outer diameter of the outer rubber layer is not more than 7.0mm, and the outer rubber layer 224 is extruded to longitudinally wrap an isolation paper tape.
The manufacturing process of the control line comprises the following steps: firstly, stranding 12 strands of 1000D aramid fibers to form an aramid fiber tow 221, then extruding ethylene propylene rubber outside the aramid fiber tow 221 to form an inner rubber layer 222, wherein the outer diameter of the extrusion is 3.1-3.3 mm, the outer diameter is kept uniform, and no obvious eccentricity exists; and then 56 control conductors are wound on the inner rubber layer 222, the pitch is 13.0mm-15.0mm, the winding direction is right, the calculated outer diameter is 4.5mm, a conductor layer 223 is formed, finally, high-strength ethylene propylene insulating glue 14PMa is extruded outside the conductor layer 223, the extruded outer diameter is kept not more than 7.0mm, the calculated thickness is 1.2mm, and an isolation paper tape is longitudinally wrapped during extrusion insulation to form the control line 22.
Furthermore, the cable core is formed by twisting three insulation wire cores 1 and a control wire core 2, the pitch-diameter ratio is not more than 7.5, the twisting direction is right, a bare tin-plated copper conductor twisted in the same direction is placed in the middle of the cable core, the cable core is cabled without filling side pads, the whole structure is tighter, the structural stability and the impact resistance are improved, and a layer of water blocking tape is wrapped outside the cable core to prevent water from permeating into the cable core.
In this embodiment, aramid fiber silk weaving layer 3 is woven by aramid fiber silk 1000 dx 2 and is strengthened forming, improves the whole tensile shock resistance of cable.
In this embodiment, the inner sheath is made of chlorinated polyethylene, and the wall thickness of the inner sheath is 6.9mm-7.2mm, so that the cable has a function of protecting the inner cable core with high strength.
The outer sheath 5 is made of dimethyl terephthalate (DMT), 1, 4-Butanediol (BG), Polytetrahydrofuran (PTMG), thermoluminescent phosphor (TL), tetrabutyl titanate and magnesium acetate, Irganox1098 and plastick 168. In the embodiment, dimethyl terephthalate (DMT), 1, 4-Butanediol (BG) and Polytetrahydrofuran (PTMG) are used as monomers, thermoluminescent phosphor (TL), tetrabutyl titanate and magnesium acetate are used as catalysts, Irganox1098 and Tanok 168 are used as antioxidants, a two-step method of ester exchange and melt polycondensation is adopted to synthesize a PBT/PTMG polyether ester elastomer material, and Polytetrafluoroethylene (PTEF) is introduced into the synthesized polyether ester to form the TPEE thermoluminescent material.
Wherein the weight ratio of 1, 4-Butanediol (BG), dimethyl terephthalate (DMT) to Polytetrahydrofuran (PTMG) is 1.4: 1: 1. the mass ratio of the antioxidant Irganox1098TPEE to the PTEF thermoluminescent material is 0.3%, the mass ratio of the antioxidant fenok 168 to the PTEF thermoluminescent material is 0.6%, the mass ratios of the tetrabutyl titanate and the magnesium acetate to the PTEF thermoluminescent material are respectively 0.1%, and the mass ratios of the thermoluminescent phosphor phase (TL) to the PTEF thermoluminescent material are respectively 0.12%.
The specific synthetic process is as follows: weighing the raw materials according to the weight ratio of the components of the cable outer sheath material of the thermal fluorescence coal mining machine, heating a double-roller plastic mixing mill to 100 ℃, sequentially putting 1, 4-Butanediol (BG), dimethyl terephthalate (DMT) and Polytetrahydrofuran (PTMG) into the double-roller plastic mixing mill for mixing until the mixture is molten, adding the other components of the raw materials, mixing uniformly, and then thinly discharging the material sheet. The mixture is extruded by screw extruders with equal distance and different depth and is wrapped outside the inner sheath 4. The compression ratio of the screw extruder is 1: 2.5, the length-diameter ratio of the screw extruder is 25-30, during processing, the temperature of three zones of the body of the screw extruder is set to be 160-230 ℃, and the rotating linear speed of the screw is kept to be less than 0.15 m/s.
The inner sheath of the thermoluminescent coal cutter cable in the embodiment is made of high-strength chlorinated polyethylene, and the outer sheath is made of polyether type modified thermoplastic elastomer, so that the thermotropic fluorescent coal cutter cable can completely meet the requirements of impact, smashing and scraping of the cable sheath of the coal cutter during working, the overall mechanical performance of the cable is ensured to be improved, and the service life of the cable is greatly prolonged.
The material of the outer sheath 5 adopts a two-step method of ester exchange and melt polycondensation to synthesize the PBT/PTMG polyether ester elastomer material, and Polytetrafluoroethylene (PTEF) is introduced into the synthesized polyether ester to form a TPEE thermoluminescent material, so that the outer sheath 5 has good heat resistance, high wear resistance and high chemical stability. The temperature range of the TPEE thermoluminescent material is-200-260 ℃, so that the cable has good environmental adaptability and good weather resistance. The TPEE thermoluminescent material does not have a luminescence property, but can transmit thermoluminescence, convert the heat of the cable in operation into fluorescence for release, and enable the cable to be identified in the light dim and dark of a mine hole without light pollution when not in operation.
The thermotropic fluorescence coal mining machine cable in the embodiment improves the conductor self structure, the insulating braid layer, the control wire structure and the outer sheath, so that the cable has the characteristics of long service life, thermotropic fluorescence, bending resistance, high strength and impact resistance, and is very suitable for coal mining working conditions.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A thermotropic fluorescence coal mining machine cable is characterized by comprising a cable core, an aramid fiber woven layer (3), an outer sheath (4) and an outer sheath (5), wherein the aramid fiber woven layer (3), the outer sheath (4) and the outer sheath (5) wrap the cable core from inside to outside, and the cable core is formed by stranding a plurality of insulated wires and a control wire core (2);
the insulated wire core (1) comprises a conductor (11) and an insulating layer (12) wrapped outside the conductor (11), the conductor (11) is formed by twisting an aramid fiber wire reinforcing piece and a plurality of strands of tinned copper wires, and a shielding layer (13) is arranged outside the insulating layer (12);
the control wire core (2) is formed by twisting a middle pad (21) and a plurality of control wires (22), and a rubber cloth belt (23) is wrapped outside the control wire core (2);
the control line (22) comprises aramid fiber tows (221), an inner rubber layer (222), a conducting wire layer (223) and an outer rubber layer (224), the conducting wire layer (223) is formed by winding a control conducting wire, and the aramid fiber tows (221) are wrapped by the inner rubber layer (222), the conducting wire layer (223) and the outer rubber layer (224) from inside to outside.
2. The pyrotechnical shearer cable according to claim 1, wherein the conductor (11) is externally wrapped with a polyester tape.
3. The fluorescence shearer cable according to claim 2, wherein the insulating layer (12) is made of ethylene propylene rubber, and the shielding layer (13) is formed by weaving aramid filaments and tinned copper wires in a mixed manner.
4. The fluorescence shearer cable according to claim 1 or 3, wherein the aramid filament bundles (221) are formed by stranding 12 strands of 1000D aramid filaments, and the stranding pitch is 20mm-25 mm.
5. The fluorescence shearer cable according to claim 4, wherein the inner rubber layer (222) is made of ethylene propylene rubber, and the outer diameter of the inner rubber layer (222) is 3.1mm-3.3 mm.
6. The pyro-fluorescence shearer cable according to claim 5, wherein the wire layer (223) is formed by winding 56 control wires with a nominal diameter of 0.3mm, the winding pitch is 13.0mm-15.0mm, and the winding direction is right.
7. The fluorescence coal mining machine cable according to claim 6, wherein the outer rubber layer (224) is made of ethylene propylene rubber insulation, the outer diameter of the insulation is not more than 7.0mm, and the extruded outer rubber layer (224) longitudinally wraps the isolation paper tape.
8. The thermotropic fluorescence coal mining machine cable according to claim 1 or 7, wherein the cable core is formed by twisting three insulating wire cores (1) and one control wire core (2), the pitch diameter ratio is not more than 7.5, the twisting direction is right, and a layer of water blocking tape is wrapped outside the cable core.
9. The thermotropic fluorescence coal mining machine cable according to claim 8, wherein the raw material of the outer sheath (5) comprises dimethyl terephthalate (DMT), 1, 4-Butanediol (BG), Polytetrahydrofuran (PTMG), thermoluminescent phosphor (TL), tetrabutyl titanate and magnesium acetate, Irganox1098 and knoker 168, wherein the dimethyl terephthalate (DMT), 1, 4-Butanediol (BG) and Polytetrahydrofuran (PTMG) are used as monomers, the thermoluminescent phosphor (TL), tetrabutyl titanate and magnesium acetate are used as catalysts, and the Irganox1098 and knoker 168 are used as antioxidants.
10. The pyro-fluorescence shearer cable according to claim 9, wherein the weight ratio of 1, 4-Butanediol (BG), dimethyl terephthalate (DMT) to Polytetrahydrofuran (PTMG) is 1.4: 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011288997.7A CN112466515A (en) | 2020-11-17 | 2020-11-17 | Thermal fluorescence coal mining machine cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011288997.7A CN112466515A (en) | 2020-11-17 | 2020-11-17 | Thermal fluorescence coal mining machine cable |
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| CN113724931A (en) * | 2021-08-25 | 2021-11-30 | 江西博硕电子有限公司 | Noctilucent monofilament and data line |
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