CN114999718A - Super-durable optical fiber composite coal mining machine cable - Google Patents
Super-durable optical fiber composite coal mining machine cable Download PDFInfo
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- CN114999718A CN114999718A CN202210668211.7A CN202210668211A CN114999718A CN 114999718 A CN114999718 A CN 114999718A CN 202210668211 A CN202210668211 A CN 202210668211A CN 114999718 A CN114999718 A CN 114999718A
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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
- H01B7/1895—Internal space filling-up means
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- 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
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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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
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
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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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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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
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- 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
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Abstract
The invention discloses an ultra-durable optical fiber composite coal mining machine cable which comprises an outer coating sheath, wherein a power line, a central optical fiber, a control line, a communication line and an optical cable which are mutually twisted into a cable are arranged in the outer coating sheath, and the central optical fiber is arranged along the axial lead of the outer coating sheath; the saddle support is wrapped outside the central optical fiber and is formed by extruding, vulcanizing and molding a semiconductive high polymer material; and the power line, the control line, the communication line and the optical cable are attached to the outer side wall of the saddle bracket. The cable provided by the invention has the advantages of excellent bending resistance, tensile resistance and smashing resistance.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an ultra-durable optical fiber composite coal mining machine cable.
Background
A cable is an electric energy or signal transmission device, generally composed of several or several groups of wires, and generally classified into a rubber jacketed flexible cable, a nuclear grade cable, a bare wire and conductor product, a power cable, a communication cable and optical fiber, an electromagnetic wire, a flexible fireproof cable, and the like according to the use thereof. In the state of the art, optical fibers are generally used in fixed-laying type cables for transmitting large-capacity signals, so as to ensure normal transmission of communication signals, and once the cables are bent or stretched, the optical fibers are often extremely prone to core breakage, resulting in communication interruption.
With the development of technology, some manufacturers can apply optical fibers to cables for harbor machinery, which generally have a bending radius of more than 20 times and are basically free from extrusion and impact, so that the optical fibers can normally run for a long time. In the field of coal mining machine cables, with the advance of intelligent mine construction work, although some manufacturers try to apply optical fibers to the coal mining machine cables, no mature technology exists so far except for individual manufacturers, and the effect that the optical fibers can achieve super durability (the failure-free operation time can reach more than 12 months) in the whole mining process can be guaranteed. The reason is that under the working condition that the production and manufacturing level of the coal mining machine cable is relatively backward in China, the service life of the coal mining machine cable is generally not more than 6 months, the mining time of a fully mechanized mining face for a large mine is at least more than one year, if the cable needs to be replaced due to damage in the midway, the shutdown and the production stop are at least required for 1 to 2 days, and the amount of the lost money is calculated in tens of millions. This therefore places higher demands on the quality of the cable.
In the prior art, generally, in a cable of a coal mining machine, a space for placing optical fibers mainly comprises two areas, namely a cable core center and a power line gap. If the cable is placed in the central area of the cable core, the central position of the cable can be directly stressed in the cable stretching process, so that the optical fiber is very likely to be directly broken in the coal mining process; if the cable is placed in a power line gap of the cable, due to the impact and the extrusion of the coal gangue, once impact force is directly applied to the optical fiber position of the cable, the fragile optical fiber cannot bear the impact force, and the fragile optical fiber is directly chopped to lose the communication effect. Therefore, an ultra-durable bending-resistant, tensile and smashing-resistant optical fiber composite rubber jacketed flexible cable for a coal mining machine is urgently needed in the market.
Disclosure of Invention
The invention aims to provide an ultra-durable optical fiber composite coal mining machine cable, which is used for solving the problems in the prior art and has the advantages of excellent bending resistance, tensile resistance and smashing resistance.
In order to achieve the purpose, the invention provides the following scheme: the invention provides an ultra-durable optical fiber composite coal mining machine cable which comprises an outer coating sheath, wherein a power line, a central optical fiber, a control line, a communication line and an optical cable which are mutually stranded into a cable are arranged in the outer coating sheath, and the central optical fiber is arranged along the axial lead of the outer coating sheath; the outside parcel of center optic fibre has the saddle support, power line, control line, communication line and optical cable laminating are on the lateral wall of saddle support, the saddle support is by semi-conductive macromolecular material extrusion vulcanization molding.
Through adopting above-mentioned technical scheme, set up saddle support in cable central authorities and power line gap position, protect central optic fibre through saddle support, saddle support adopts semi-conductive macromolecular material extrusion vulcanization moulding, has advantages such as flexible, tensile, anti pound, through setting up stainless steel spiral armor and setting up certain optic fibre excess length, effectively solves central optic fibre and does not draw, the not anti shortcoming of pounding of side gap position.
In one embodiment, the overwrap sheath comprises an inner sheath and an outer sheath with a reinforcing layer disposed therebetween.
Through adopting above-mentioned technical scheme, the outsourcing sheath adopts bilayer structure, and built-in enhancement layer simultaneously further improves the anti-impact of outsourcing sheath and smashes, anti extrusion and wearability.
In one embodiment, the central optical fiber comprises an optical transmission carrier, an optical fiber buffer layer, a loose tube, a second aramid fiber layer, a second stainless steel spiral armor layer and a third aramid fiber layer from an inner core to an outer layer in sequence; the gap between the second stainless steel spiral armor layer and the second aramid fiber layer is 0.1-5 mm; the weaving angle of the third aramid fiber layer is 45-80 degrees, and the weaving coverage rate of the third aramid fiber layer relative to the second stainless steel spiral armor layer is more than 80 percent.
By adopting the technical scheme, the second aramid fiber layer is coated outside the loose tube, so that the loose tube is protected, and meanwhile, the tensile property of the optical fiber unit can be improved; the existence of the gap is beneficial to the central optical fiber to be placed in a slight spiral mode in the second stainless steel spiral armor layer, so that the optical fiber has a certain extra length in the center of the cable, and the extra length can ensure that the optical fiber has a certain extra length to ensure that the fiber core is not stressed under the condition that the cable is stretched and elongated, thereby ensuring the tensile property of the central optical fiber; the second stainless steel spiral armor layer can bear lateral pressure generated in each procedure in the cable production process, and the optical fiber loose tube is protected from being pressed and deformed, so that the loss of the optical fiber is reduced; the third aramid fiber layer further protects the optical fiber unit, and simultaneously protects the second stainless steel spiral armor layer, so that the tension is prevented from acting on the second stainless steel spiral armor layer to cause the winding gap to be enlarged.
In one embodiment, the power lines comprise three groups, and the three groups of power lines are arranged in a delta shape; the control line, the communication line and the optical cable are respectively arranged between two adjacent power lines; the power line comprises a power line conductor, a power line insulator and a power line shielding layer from an inner core to an outer layer in sequence; and first adaptive grooves for embedding power lines are uniformly arranged on the outer side wall of the saddle support along the circumferential direction of the saddle support.
Through adopting above-mentioned technical scheme, set up the first adaptation groove that supplies the power line to inlay on the saddle support for power line fastening is on the saddle support in the cable, strengthens being connected between power line and the saddle support, and saddle support thickness that is located between two power lines plays the buffering release effect of power line atress, effectively avoids the problem of power line insulation extrusion deformation or even fracture, can protect simultaneously that the insulation does not receive the side direction extrusion force between the sinle silk to lead to insulating deformation, improves the stability of insulating electrical properties and cable core. Meanwhile, the power line can indirectly protect the central optical fiber.
In one embodiment, the control wire comprises an inner conductor, an inner insulation layer, an outer conductor and an outer insulation layer from an inner core to an outer layer in sequence; the lateral wall of saddle support is provided with the second adaptation groove that supplies the control line to inlay and put.
Through adopting above-mentioned technical scheme, offer the second adaptation groove that supplies the control line to set in the saddle support for control line fastening is on the saddle support in the cable, strengthens being connected between control line and the saddle support, provides effective support to the control line, improves cable core stability, prevents that the control line is not hard up when crooked, improves bending resistance.
In one embodiment, the communication wire comprises a communication wire conductor, communication wire insulation, a communication wire jacket and a jacket outer shielding layer from an inner core to an outer layer in sequence; and a third adaptive groove for embedding the communication line is formed in the outer side wall of the saddle support.
Through adopting above-mentioned technical scheme, offer the third adaptation groove that supplies the communication line to set up on the saddle support for the interior communication line fastening of cable is on the saddle support, strengthens being connected between communication line and the saddle support, provides effective support to the communication line, improves cable core stability, prevents that the communication line is not hard up when crooked, improves resistant bending property.
In one embodiment, the optical cable is a temperature measuring optical fiber, the optical cable sequentially comprises a tight-buffered optical fiber, a first aramid fiber layer and a first stainless steel spiral armor layer from an inner core to an outer layer, and the gap between the first stainless steel spiral armor layer and the first aramid fiber is 0.1-5 mm; the lateral wall of saddle support is provided with the fourth adaptation groove that supplies the optical cable to inlay.
Through adopting above-mentioned technical scheme, set up the fourth adaptation groove that supplies the optical cable to inlay on the saddle support for the optical cable fastening is on the saddle support in the cable, strengthens being connected between optical cable and the saddle support, indirectly plays the effect of protecting center optical fiber.
In one embodiment, the transition resistance between the saddle bracket and ground is less than 2000 Ω.
Through adopting above-mentioned technical scheme, the transition resistance between saddle support and the ground wire is less than 2000 omega to effectual intercommunication power line shield and ground wire make cable overall structure more compact, and have more even electric field distribution.
Compared with the prior art, the invention has the following beneficial technical effects:
1. in the application, a saddle support is arranged at the center of a cable and at the position of a gap of a power line, a central optical fiber is protected by the saddle support, the saddle support is formed by extruding and vulcanizing semiconductive high polymer materials, and has the advantages of being easy to bend, resistant to tension, resistant to smashing and the like;
2. the cable has good wear resistance, oil resistance and high flame retardance; the cable can bear the impact and smashing and extrusion effects of the coal gangue, and even if the sheath is damaged, the central optical fiber can still keep the function of transmitting signals.
3. Set up the temperature measurement optical cable in this application cable, when cable insulation takes place to puncture, according to raman scattering principle, optic fibre can the temperature variation of perception insulation breakdown department cable to confirm the temperature rise point position according to the optical time domain reflection technique, thereby confirm the insulation breakdown point, make things convenient for the staff to repair, thereby improved production efficiency greatly, reduced the potential safety hazard simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an ultra-durable optical fiber composite shearer cable according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a central optical fiber in an embodiment of the present application.
Fig. 3 is a schematic structural view of a saddle bracket in an embodiment of the present application.
Description of reference numerals: 1. a power line; 11. a power line conductor; 12. insulating a power line; 13. a power line shielding layer; 2. a central optical fiber; 21. an optical transmission carrier; 22. an optical fiber buffer layer; 23. loosening the sleeve; 24. a second aramid fiber layer; 25. a second stainless steel spiral armor layer; 26. a third aramid fiber layer; 3. a saddle bracket; 31. a first fitting groove; 32. a second fitting groove; 33. a third adapting groove; 34. a fourth adapting groove; 4. a control line; 41. an inner layer conductor; 42. the inner layer is insulated; 43. an outer conductor; 44. insulating the outer layer; 5. a communication line; 51. a communication line conductor; 52. the communication line is insulated; 53. a communication line cover; 54. a jacket outer shield layer; 6. an optical cable; 61. tightly sleeving the optical fiber; 62. a first aramid fiber layer; 63. a first stainless steel spiral armor layer; 7. a sheath; 71. an inner protective layer; 72. an outer jacket; 73. and a reinforcing 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an ultra-durable optical fiber composite coal mining machine cable, which is used for solving the problems in the prior art and has the advantages of excellent bending resistance, tensile resistance and smashing resistance.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 3, the present embodiment provides an ultra-durable optical fiber composite shearer cable. Referring to fig. 1, the cable includes an outer sheath 7, the outer sheath 7 includes an inner sheath 71 and an outer sheath 72, both the outer sheath 72 and the inner sheath 71 are preferably made of neoprene, a reinforcing layer 73 is disposed between the inner sheath 71 and the outer sheath 72, and the reinforcing layer 73 is formed by winding steel wires.
Referring to fig. 1 and 2, a power line 1, a central optical fiber 2, a control line 4, a communication line 5 and an optical cable 6 which are mutually twisted into a cable are arranged in an outer coating sheath 7, wherein the central optical fiber 2 is arranged along the axial lead of the outer coating sheath 7 and sequentially comprises an optical transmission carrier 21, an optical fiber buffer layer 22, a loose tube 23, a second aramid fiber layer 24, a second stainless steel spiral armor layer 25 and a third aramid fiber layer 26 from an inner core to an outer layer; a plurality of single-mode optical fibers are used as the optical transmission carrier 21, and the number of the single-mode optical fibers is not more than 12; the optical fiber buffer layer 22 is filled with factice; the material of the loose tube 23 is preferably PBT; the outer side wall of the loose tube 23 is coated with a large number of tensile aramid fibers, so that a second aramid fiber layer 24 is formed, the effect of protecting the loose tube 23 is achieved, and meanwhile the tensile property of the optical fiber unit can be improved; the width of the stainless steel used for the second stainless steel spiral armor layer 25 is 2mm, the thickness is 0.1mm, and the winding gap is 1 mm; the gap between the second stainless steel spiral armor layer 25 and the second aramid fiber layer 24 is 1mm, and the existence of the gap is beneficial to placing the optical fiber in the second stainless steel spiral armor layer 25 in a slight spiral mode, so that the central optical fiber 2 has a certain extra length in the center of the cable, and the extra length can ensure that the fiber core of the cable is not stressed under the condition that the cable is stretched and lengthened, thereby ensuring the tensile resistance of the central optical fiber 2; the weaving angle of the third aramid fiber layer 26 is 65 degrees, and the weaving coverage rate is more than 85 percent, so that the second stainless steel spiral armor layer 25 is effectively protected; meanwhile, the second stainless steel spiral armor layer 25 can bear lateral pressure generated in each procedure in the cable production process, and the loose tube 23 is protected from being deformed by pressure, so that the loss of the central optical fiber 2 is reduced.
In one embodiment, the saddle bracket 3 is wrapped outside the central optical fiber 2, the saddle bracket 3 is formed by extruding and vulcanizing a semi-conductive polymer material, and the transition resistance between the semi-conductive polymer material and the ground wire is less than 2000 omega, so that the power wire 1 is effectively communicated with the shielding and the ground wireThe ground wire ensures that the whole structure of the cable is more compact and has more uniform electric field distribution; the power lines 1 are provided with three groups, the three groups of power lines 1 are arranged in a shape like a Chinese character pin, and first adaptive grooves 31 for embedding the power lines 1 are uniformly arranged on the outer side wall of the saddle bracket 3 along the circumferential direction of the outer side wall; the control wire 4, the communication wire 5 and the optical cable 6 are respectively arranged between two adjacent power wires 1; the power line 1 sequentially comprises a power line conductor 11, a power line insulator 12 and a power line shielding layer 13 from an inner core to an outer layer; the power line conductor 11 is composed of tinned copper wires with the diameter of 0.4mm, single wire bundles are used for synthesizing folded wires, the bundle joint diameter ratio is 16 times, the folded wires are stranded into the power line conductor 11, and the stranding joint diameter ratio is 14 times; the material of the power line insulation 12 is preferably high-performance ethylene propylene rubber with the volume resistivity of 1 x 10 16 Omega cm, the strength is 8.5MPa, and the composite material has extremely small leakage current and partial discharge capacity, and is beneficial to reducing the insulation breakdown probability; the power line shielding layer 13 is formed by bidirectional cross weaving of fibers and copper wires, the weaving angle is 55 degrees, and the metal coverage rate is 90 percent. The transition resistance between the saddle support 3 and the ground wire is less than 2000 omega, thereby effectively communicating the power line 1 shield with the ground wire, leading the whole structure of the cable to be more compact and having more uniform electric field distribution.
In another embodiment, the control wire 4 comprises an inner conductor 41, an inner insulation 42, an outer conductor 43 and an outer insulation 44 in sequence from the inner core to the outer layer, the inner conductor 41 is formed by winding a copper monofilament around a central tensile member, and the central tensile member is a steel wire rope; the material and performance of the inner layer insulation 42 are consistent with those of the power line 1; the outer conductor 43 is distributed on the outer side of the inner insulation 42 in a copper monofilament weaving mode; the material and properties of the outer layer insulation 44 are consistent with those of the inner layer insulation 42.
In yet another embodiment, the communication wire 5 comprises, in order from inner core to outer layer, a communication wire conductor 51, communication wire insulation 52, a communication wire jacket 53, and a jacket outer shield 54; the communication line conductor 51 is stranded by copper wires; the communication line insulation 52 is made of an ultra-clean high polymer material with the dielectric constant less than 2.1, and the constant can ensure that the communication line 5 can obtain different characteristic impedances by setting different insulation thicknesses so as to be matched with the terminal impedance of equipment, so that the requirement of impedance matching and loss reduction is met; the material of the communication wire sheath 53 is preferably ethylene propylene rubber; the outer shielding layer 54 of the sheath is formed by wrapping metal strips and externally weaving metal/fibers in a bidirectional and crossed manner, so that the interference of the electromagnetic field of the power line 1 to communication signals is reduced.
In one embodiment, the optical cable 6 is a temperature measuring optical fiber, and comprises a tight-buffered optical fiber 61, a first aramid fiber layer 62 and a first stainless steel spiral armor layer 63 in sequence from an inner core to an outer layer; the first aramid fiber layer 62 is formed by coating tensile fibers on the tight-buffered optical fiber 61; the stainless steel used for the first stainless steel spiral armor layer 63 has a width of 4mm, a thickness of 2mm and a winding gap of 1 mm; the clearance between first stainless steel spiral armor 63 and the first aramid fiber layer 62 is 2mm, and stainless steel material can ensure that when cable production, especially follow-up cable were used in the operating mode in the pit, can bear the dashing of gangue pound and the squeezing action, even outer cladding sheath 7 takes place the damage, optic fibre still can keep transmission signal's function. When the cable insulation is broken down, according to the Raman scattering principle, the optical fiber can sense the temperature change of the cable at the insulation breakdown position, and the position of the temperature rising point is determined according to the optical time domain reflection technology, so that the insulation breakdown point is determined, and the repairing by workers is facilitated.
In one embodiment, the saddle bracket 3 is provided with a second adapting groove 32, a third adapting groove 33 and a fourth adapting groove 34 on the outer side wall for embedding the control wire 4, the communication wire 5 and the optical cable 6 respectively, and the second adapting groove 32, the third adapting groove 33 and the fourth adapting groove 34 are respectively positioned between two adjacent first adapting grooves 31; when the power line 1 is clamped into the first adapting groove 31, the control line 4 is clamped into the second adapting groove 32, the communication line 5 is clamped into the third adapting groove 33, and the optical cable 6 is clamped into the fourth adapting groove 34, the power line 1, the control line 4, the communication line 5 and the optical cable 6 are mutually attached.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. The utility model provides an ultra-durable optic fibre composite coal-winning machine cable which characterized in that: the optical cable comprises an outer cladding sheath, wherein a power line, a central optical fiber, a control line, a communication line and an optical cable which are mutually stranded into a cable are arranged in the outer cladding sheath, and the central optical fiber is arranged along the axial lead of the outer cladding sheath; the outside of the central optical fiber is wrapped with a saddle bracket, and the power line, the control line, the communication line and the optical cable are attached to the outer side wall of the saddle bracket; the saddle support is formed by extruding and vulcanizing a semiconductive high polymer material.
2. The ultra-durable optical fiber composite shearer cable of claim 1, wherein: the outer cladding sheath comprises an inner sheath and an outer sheath, and a reinforcing layer is arranged between the inner sheath and the outer sheath.
3. The ultra-durable optical fiber composite shearer cable of claim 1, wherein: the central optical fiber sequentially comprises an optical transmission carrier, an optical fiber buffer layer, a loose tube, a second aramid fiber layer, a second stainless steel spiral armor layer and a third aramid fiber layer from an inner core to an outer layer; the gap between the second stainless steel spiral armor layer and the second aramid fiber layer is 0.1-5 mm; the weaving angle of the third aramid fiber layer is 45-80 degrees, and the weaving coverage rate of the third aramid fiber layer relative to the second stainless steel spiral armor layer is more than 80%.
4. The ultra-durable optical fiber composite shearer cable of claim 1, wherein: the power lines comprise three groups, and the three groups of power lines are arranged in a Chinese character 'pin'; the control line, the communication line and the optical cable are respectively arranged between two adjacent power lines; the power line comprises a power line conductor, a power line insulator and a power line shielding layer from an inner core to an outer layer in sequence; and first adaptive grooves for embedding power lines are uniformly arranged on the outer side wall of the saddle support along the circumferential direction of the saddle support.
5. The ultra-durable optical fiber composite shearer cable of claim 1, wherein: the control line sequentially comprises an inner conductor, an inner insulation layer, an outer conductor and an outer insulation layer from the inner core to the outer layer; the lateral wall of saddle support is provided with the second adaptation groove that supplies the control line to inlay and put.
6. The ultra-durable optical fiber composite shearer cable of claim 1, wherein: the communication wire comprises a communication wire conductor, a communication wire insulator, a communication wire sheath and a sheath outer shielding layer in sequence from an inner core to an outer layer; the lateral wall of saddle support is provided with the third adaptation groove that supplies the communication line to inlay.
7. The ultra-durable optical fiber composite shearer cable of claim 1, wherein: the optical cable is a temperature measuring optical fiber, the optical cable sequentially comprises a tight-buffered optical fiber, a first aramid fiber layer and a first stainless steel spiral armor layer from an inner core to an outer layer, and a gap between the first stainless steel spiral armor layer and the first aramid fiber is 0.1-5 mm; the lateral wall of saddle support is provided with the fourth adaptation groove that supplies the optical cable to inlay.
8. The ultra-durable optical fiber composite shearer cable of claim 1, wherein: and the transition resistance between the saddle bracket and the ground wire is less than 2000 omega.
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| CN202210668211.7A CN114999718B (en) | 2022-06-14 | 2022-06-14 | Super durable optical fiber composite coal mining machine cable |
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| CN202210668211.7A CN114999718B (en) | 2022-06-14 | 2022-06-14 | Super durable optical fiber composite coal mining machine cable |
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| CN114999718A true CN114999718A (en) | 2022-09-02 |
| CN114999718B CN114999718B (en) | 2024-08-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023124100A1 (en) | 2023-07-26 | 2025-01-30 | Shanghai Lanhao Electric Co., Ltd. | auxiliary cable, flat cable and round cable |
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| DE102023124100B4 (en) | 2023-07-26 | 2025-06-26 | Shanghai Lanhao Electric Co., Ltd. | Flat cable with auxiliary cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114999718B (en) | 2024-08-27 |
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