CN114999718B - 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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- CN114999718B CN114999718B CN202210668211.7A CN202210668211A CN114999718B CN 114999718 B CN114999718 B CN 114999718B CN 202210668211 A CN202210668211 A CN 202210668211A CN 114999718 B CN114999718 B CN 114999718B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 77
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000005065 mining Methods 0.000 title abstract description 16
- 239000003245 coal Substances 0.000 title abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 45
- 230000003287 optical effect Effects 0.000 claims abstract description 30
- 238000005253 cladding Methods 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 239000002861 polymer material Substances 0.000 claims abstract description 8
- 238000004073 vulcanization Methods 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 30
- 239000010935 stainless steel Substances 0.000 claims description 30
- 229920006231 aramid fiber Polymers 0.000 claims description 28
- 238000009413 insulation Methods 0.000 claims description 28
- 239000004020 conductor Substances 0.000 claims description 22
- 239000000835 fiber Substances 0.000 claims description 12
- 238000009954 braiding Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
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- 230000009286 beneficial effect Effects 0.000 description 4
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- 230000007547 defect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
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- 239000004760 aramid Substances 0.000 description 1
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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
- H01B7/1895—Internal space filling-up means
-
- 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
-
- 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
-
- 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
-
- 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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- Communication Cables (AREA)
Abstract
The invention discloses a super-durable optical fiber composite coal mining machine cable, which 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 twisted 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 outer part of the central optical fiber is wrapped with a saddle bracket, and the saddle bracket is formed by extrusion and vulcanization of a semiconductive high polymer material; 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 has the advantages of excellent bending resistance, excellent tensile resistance and excellent smash resistance.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a super-durable optical fiber composite coal cutter cable.
Background
The cable is an electric energy or signal transmission device, and is generally composed of several wires or groups of wires, and is generally classified into rubber jacketed flexible cables, nuclear-grade cables, bare wires and bare conductor products, power cables, communication cables and optical fibers, electromagnetic wires, flexible fireproof cables, and the like according to the use applications thereof. At the present state of the art, optical fibers are commonly used in cables of the fixed-lay type for transmitting large-capacity signals, so as to ensure the normal transmission of communication signals, and once the cable is bent or stretched, the optical fibers tend to be extremely easily broken, resulting in interruption of communication.
With the development of technology, some manufacturers can apply the optical fiber to the cable for the harbour machinery equipment, and the cable generally has a bending radius of more than 20 times, and basically no extrusion or impact occurs, so that the optical fiber can normally run for a long time. For the field of the cable of the coal mining machine, along with the promotion of the construction work of the smart mine, although some factories try to apply the optical fiber to the cable of the coal mining machine, no very mature technology except for individual factories can ensure that the optical fiber can reach the effect of super durability (no fault running time is more than 12 months) in the whole mining process. The reason for this is mainly that under the working condition that the production and manufacturing level of the domestic coal mining machine cable is lower, the service life of the coal mining machine cable is generally not longer than 6 months, and for a large mine, the mining time of one fully-mechanized mining face is at least more than one year, if the cable is damaged halfway and needs to be replaced, the production is stopped for at least 1-2 days, and the loss gold amount is calculated in tens of millions. This places higher demands on the quality of the cable.
In the prior art, generally, in the interior of a cable of a coal mining machine, a space in which an optical fiber can be placed mainly comprises two areas of the center of a cable core and a power line gap. If the optical fiber is placed in the central area of the cable core, the central position of the cable is directly stressed in the cable stretching process, so that the optical fiber is highly likely to be directly broken in the coal mining process; if placed in the cable power line gap, because the gangue is dashed and crushed and once the impact force directly acts on the optical fiber position of the cable, fragile optical fibers are often unbearable and can be directly chopped to lose the communication effect. Therefore, there is an urgent need in the market for an ultra-durable bending, tensile and anti-crushing optical fiber composite rubber jacketed flexible cable for a coal mining machine.
Disclosure of Invention
The invention aims to provide a super-durable optical fiber composite coal mining machine cable which solves the problems of the prior art and has the advantages of excellent bending resistance, tensile resistance and crushing resistance.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a super-durable optical fiber composite coal mining machine cable, which 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 twisted 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 parcel of center optic fibre has the saddle support, power cord, control line, communication line and optical cable laminating are on the lateral wall of saddle support, saddle support is extruded by semiconductive polymer material and is vulcanized shaping.
Through adopting above-mentioned technical scheme, set up the saddle support in cable central authorities and power line gap position, protect central optic fibre through the saddle support, the saddle support adopts semiconductive polymer material to extrude vulcanization shaping, has advantages such as flexible, tensile, anti pounding, through setting up stainless steel spiral armor and setting up certain optic fibre excess length, effectively solves central optic fibre not tensile, the not defect such as pounding of side gap position.
In one embodiment, the outer cladding sheath includes an inner sheath and an outer sheath, and a reinforcing layer is disposed between the inner sheath and the outer sheath.
Through adopting above-mentioned technical scheme, the outer cladding sheath adopts bilayer structure, and built-in enhancement layer simultaneously, further improves the impact resistance of outer cladding sheath and smashes, anti extrusion and wearability.
In one embodiment, 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 0.1-5mm; the braiding angle of the third aramid fiber layer is 45-80 degrees, and the braiding coverage rate of the third aramid fiber layer relative to the second stainless steel spiral armor layer is more than 80%.
By adopting the technical scheme, the second aramid fiber layer is coated outside the loose tube, so that the loose tube is protected, and the tensile property of the optical fiber unit can be improved; the existence of the gap is beneficial to the placement of the central optical fiber in a slight spiral manner in the second stainless steel spiral armor layer, so that the optical fiber has a certain residual length in the center of the cable, the residual length can ensure that the optical fiber has a certain residual length and the optical fiber core is not stressed when the cable is stretched and elongated, and the tensile property of the central optical fiber is ensured; the second stainless steel spiral armor layer can bear lateral pressure generated by each procedure in the cable production process, and the loose tube of the optical fiber is protected from being deformed by pressure, 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 winding gap is prevented from being enlarged due to the fact that the tensile force acts on the second stainless steel spiral armor layer.
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 insulation layer and a power line shielding layer from the inner core to the outer layer in sequence; the outer side wall of the saddle bracket is uniformly provided with first adapting grooves for embedding power lines along the circumferential direction of the saddle bracket.
Through adopting above-mentioned technical scheme, set up the first adaptation groove that supplies the power line to inlay on the saddle support for the power line fastens on the saddle support in the cable, strengthens the connection 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 even fracture, can protect the insulation simultaneously and not receive the side direction extrusion force between the sinle silk to lead to insulation deformation, improves insulation electrical property and cable core's stability. Meanwhile, the power line can indirectly play a role in protecting the central optical fiber.
In one embodiment, the control line comprises an inner conductor, an inner insulation, an outer conductor and an outer insulation from the inner core to the outer layer in sequence; the outer side wall of the saddle bracket is provided with a second adapting groove for embedding a control wire.
Through adopting above-mentioned technical scheme, set up the second adaptation groove that supplies the control line to inlay on the saddle support for the control line fastens 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 from becoming flexible when crooked, improves bending resistance.
In one embodiment, the communication line sequentially comprises a communication line conductor, a communication line insulator, a communication line sheath and a sheath outer shielding layer from the inner core to the outer layer; the outer side wall of the saddle bracket is provided with a third adapting groove for the communication line to be embedded.
Through adopting above-mentioned technical scheme, offer the third adaptation groove that supplies the communication line to inlay on the saddle support for communication line fastening in the 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 from becoming flexible when crooked, improves bending resistance.
In one embodiment, the optical cable is a temperature measuring optical fiber, and comprises a tight sleeve optical fiber, a first aramid fiber layer and a first stainless steel spiral armor layer sequentially from an inner core to an outer layer, wherein a gap between the first stainless steel spiral armor layer and the first aramid fiber is 0.1-5mm; the outer side wall of the saddle bracket is provided with a fourth adapting groove for the optical cable to be embedded.
Through adopting above-mentioned technical scheme, offer the fourth adaptation groove that supplies the optical cable to inlay on the saddle support for optical cable fastening in the cable is on the saddle support, strengthens the connection between optical cable and the saddle support, indirectly plays the effect of protecting central optic fibre.
In one embodiment, the transition resistance between the saddle support 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 Ω to effectual intercommunication power line shielding 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. According to the application, the saddle bracket is arranged at the center of the cable and the gap position of the power line, the center optical fiber is protected by the saddle bracket, and the saddle bracket is formed by extrusion and vulcanization of a semiconductive polymer material, so that the cable has the advantages of being flexible, tensile, anti-smash and the like, and the defects of non-tensile and non-smash of the side gap position of the center optical fiber are effectively overcome by arranging the stainless steel spiral armor layer and a certain fiber excess length;
2. The cable has good wear resistance, oil resistance and high flame retardance; the cable can bear the impact and extrusion actions of the gangue, and even if the sheath is damaged, the central optical fiber can still maintain the function of transmitting signals.
3. According to the application, the temperature measuring optical cable is arranged in the cable, when the cable insulation breaks down, the optical fiber can sense the temperature change of the cable at the insulation breakdown position according to the Raman scattering principle, and the temperature rise point position is determined according to the optical time domain reflection technology, so that the insulation breakdown point is determined, and the repair of workers is facilitated, thereby greatly improving the production efficiency and reducing the potential safety hazard.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a super durable optical fiber composite shearer cable in accordance with an embodiment of the present application.
FIG. 2 is a schematic diagram of the structure of a central optical fiber in an embodiment of the present application.
Fig. 3 is a schematic structural view of a saddle bracket according to an embodiment of the present application.
Reference numerals illustrate: 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. a loose tube; 24. a second aramid fiber layer; 25. a second stainless steel spiral armor layer; 26. a third aramid fiber layer; 3. a saddle support; 31. a first fitting groove; 32. a second fitting groove; 33. a third fitting groove; 34. a fourth fitting groove; 4. a control line; 41. an inner conductor; 42. an inner layer is insulated; 43. an outer conductor; 44. an outer layer is insulated; 5. a communication line; 51. a communication line conductor; 52. the communication line is insulated; 53. a communication line sheath; 54. a sheath outer shielding layer; 6. an optical cable; 61. tightly sleeving an 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 protective layer; 73. a reinforcing layer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a super-durable optical fiber composite coal mining machine cable which solves the problems of the prior art and has the advantages of excellent bending resistance, tensile resistance and crushing resistance.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-3, the present embodiment provides a super durable optical fiber composite shearer cable. Referring to fig. 1, the cable includes an outer covering sheath 7, the outer covering sheath 7 includes an inner sheath 71 and an outer sheath 72, the materials of the outer sheath 72 and the inner sheath 71 are preferably 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 cladding sheath 7, wherein the central optical fiber 2 is arranged along the axial lead of the outer cladding 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 ointment; 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 loose tube 23 is protected, and 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 1mm; and the clearance between the second stainless steel spiral armor layer 25 and the second aramid fiber layer 24 is 1mm, the existence of the clearance is beneficial to the optical fiber to be placed in a slight spiral manner in the second stainless steel spiral armor layer 25, so that the central optical fiber 2 has a certain surplus length in the center of the cable, and the surplus length can ensure that the fiber core is not stressed under the condition that the cable is stretched and elongated, so as to ensure the tensile property of the central optical fiber 2; the braiding angle of the third aramid fiber layer 26 is 65 degrees, and the braiding 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 by various procedures 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 extrusion and vulcanization of a semiconductive high polymer material, and the transition resistance between the saddle bracket 3 and the ground wire is smaller than 2000 omega, so that the power wire 1 is effectively communicated with the ground wire, the whole structure of the cable is more compact, and the cable 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 'delta' shape, and first adapting grooves 31 for the power lines 1 to be embedded are uniformly arranged on the outer side wall of the saddle bracket 3 along the circumferential direction of the saddle bracket; the control line 4, the communication line 5 and the optical cable 6 are respectively arranged between two adjacent power lines 1; the power line 1 sequentially comprises a power line conductor 11, a power line insulation 12 and a power line shielding layer 13 from the inner core to the outer layer; the power line conductor 11 consists of tinned copper wires with the diameter of 0.4mm, the wires are bundled into strands by monofilaments, the ratio of the bundle joint diameter is 16 times, the strands are twisted into the power line conductor 11, and the ratio of the twist joint diameter is 14 times; the power line insulation 12 is preferably made of high-performance ethylene propylene rubber, has volume resistivity of 1 multiplied by 10 16 ohm cm and strength of 8.5MPa, has extremely small leakage current and partial discharge capacity, and is beneficial to reducing insulation breakdown probability; the power line shielding layer 13 is formed by two-way cross braiding of fibers and copper wires, the braiding angle is 55 degrees, and the metal coverage rate is 90 percent. The transition resistance between the saddle bracket 3 and the ground wire is smaller than 2000 omega, so that the shielding of the power wire 1 and the ground wire are effectively communicated, the whole structure of the cable is more compact, and the cable has more uniform electric field distribution.
In another embodiment, the control wire 4 sequentially comprises an inner conductor 41, an inner insulation 42, an outer conductor 43 and an outer insulation 44 from the inner core to the outer layer, wherein the inner conductor 41 is formed by winding copper monofilaments around a central tensile member, and the central tensile member is a steel wire rope; the material and performance of the inner insulation 42 are consistent with those of the power line 1; the outer conductor 43 is distributed outside the inner insulation 42 by means of copper monofilament braiding; the material and properties of the outer insulation 44 are consistent with those of the inner insulation 42.
In yet another embodiment, the communication line 5 includes, in order from the inner core to the outer layer, a communication line conductor 51, a communication line insulation 52, a communication line jacket 53, and a jacket outer shield 54; the communication line conductor 51 is formed by twisting copper wires; the communication line insulation 52 is made of ultra-clean high polymer materials with dielectric constants smaller than 2.1, and the ultra-clean high polymer materials can ensure that the communication line 5 can obtain different characteristic impedance by setting different insulation thicknesses so as to be matched with equipment terminal impedance, so that the requirement of impedance matching and loss reduction can be met; the material of the communication line sheath 53 is preferably ethylene propylene rubber; the sheath outer shielding layer 54 is formed by wrapping a metal belt and externally weaving metal/fiber in a two-way cross mode, so that interference of electromagnetic fields of the power line 1 on communication signals is reduced.
In one embodiment, the optical cable 6 is a temperature measuring optical fiber, and comprises a tight sleeve optical fiber 61, a first aramid fiber layer 62 and a first stainless steel spiral armor layer 63 from the inner core to the outer layer in sequence; the first aramid fiber layer 62 is formed by coating tensile fibers on the tight-buffered optical fiber 61; the width of the stainless steel used for the first stainless steel spiral armor 63 is 4mm, the thickness is 2mm, and the winding gap is 1mm; the clearance between the 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 use under well operating mode, can bear the impact and smash and extrusion effect of gangue, even the damage takes place for outer cladding sheath 7, the function that the optic fibre still can keep transmission signal. When the cable insulation breaks down, the optical fiber can sense the temperature change of the cable at the insulation breakdown position according to the Raman scattering principle, and the temperature rise point position is determined according to the optical time domain reflection technology, so that the insulation breakdown point is determined, and the repair of workers is facilitated.
In one embodiment, the outer side wall of the saddle bracket 3 is provided with a second adapting groove 32, a third adapting groove 33 and a fourth adapting groove 34 for respectively embedding the control wire 4, the communication wire 5 and the optical cable 6, 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 should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics 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.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. The utility model provides a super durable optic fibre complex coal-winning machine cable which characterized in that: the 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 twisted 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 saddle bracket is wrapped outside the central optical fiber, 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 bracket is formed by extrusion and vulcanization of a semiconductive high polymer material;
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 the inner core to the outer layer; the gap between the second stainless steel spiral armor layer and the second aramid fiber layer is 0.1-5mm; the braiding angle of the third aramid fiber layer is 45-80 degrees, and the braiding coverage rate of the third aramid fiber layer relative to the second stainless steel spiral armor layer is more than 80%;
The optical cable is a temperature measuring optical fiber, and comprises a tight sleeve optical fiber, a first aramid fiber layer and a first stainless steel spiral armor layer sequentially from an inner core to an outer layer, wherein the gap between the first stainless steel spiral armor layer and the first aramid fiber is 0.1-5mm; the outer side wall of the saddle bracket is provided with a fourth adapting groove for the optical cable to be embedded.
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 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 insulation layer and a power line shielding layer from the inner core to the outer layer in sequence; the outer side wall of the saddle bracket is uniformly provided with first adapting grooves for embedding power lines along the circumferential direction of the saddle bracket.
4. 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 outer side wall of the saddle bracket is provided with a second adapting groove for embedding a control wire.
5. The ultra-durable optical fiber composite shearer cable of claim 1, wherein: the communication line sequentially comprises a communication line conductor, a communication line insulator, a communication line sheath and a sheath outer shielding layer from the inner core to the outer layer; the outer side wall of the saddle bracket is provided with a third adapting groove for the communication line to be embedded.
6. The ultra-durable optical fiber composite shearer cable of claim 1, wherein: the transition resistance between the saddle support and the ground wire is smaller than 2000 omega.
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| CN109599205A (en) * | 2018-11-09 | 2019-04-09 | 安徽凌宇电缆科技有限公司 | A kind of intelligence engineering equipment uses optoelectronic composite cable |
| CN215118450U (en) * | 2021-06-25 | 2021-12-10 | 安徽凌宇电缆科技有限公司 | Photoelectric composite rubber jacketed flexible cable for coal mining machine with shielding twisted control line |
| CN215377052U (en) * | 2021-08-27 | 2021-12-31 | 安徽凌宇电缆科技有限公司 | Novel metal shielding optical fiber composite rubber jacketed flexible cable for coal mining machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104091643B (en) * | 2014-07-22 | 2016-06-29 | 上海蓝昊电气江苏有限公司 | A kind of compound electric cable for coal mining machine with optical fiber and the signal of telecommunication |
| CN205194361U (en) * | 2015-11-20 | 2016-04-27 | 上海蓝昊电气江苏有限公司 | Middle and high voltage area optic fibre rubber cover flexible cable that contains shape of a saddle packing |
| CN112885517A (en) * | 2021-01-21 | 2021-06-01 | 上海蓝昊电气江苏有限公司 | Power, control and communication integrated photoelectric composite coal mining machine cable |
| CN215600152U (en) * | 2021-02-20 | 2022-01-21 | 山东兖矿集团长龙电缆制造有限公司 | Coal mining machine composite cable and coal mining machine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599205A (en) * | 2018-11-09 | 2019-04-09 | 安徽凌宇电缆科技有限公司 | A kind of intelligence engineering equipment uses optoelectronic composite cable |
| CN215118450U (en) * | 2021-06-25 | 2021-12-10 | 安徽凌宇电缆科技有限公司 | Photoelectric composite rubber jacketed flexible cable for coal mining machine with shielding twisted control line |
| CN215377052U (en) * | 2021-08-27 | 2021-12-31 | 安徽凌宇电缆科技有限公司 | Novel metal shielding optical fiber composite rubber jacketed flexible cable for coal mining machine |
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