CN212989725U - Oil-resistant and wear-resistant environment-friendly mining photoelectric hybrid optical cable - Google Patents
Oil-resistant and wear-resistant environment-friendly mining photoelectric hybrid optical cable Download PDFInfo
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- CN212989725U CN212989725U CN202022303212.0U CN202022303212U CN212989725U CN 212989725 U CN212989725 U CN 212989725U CN 202022303212 U CN202022303212 U CN 202022303212U CN 212989725 U CN212989725 U CN 212989725U
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Abstract
The utility model discloses an oil-resistant and wear-resistant environment-friendly photoelectric hybrid cable for mining, which comprises an optical signal unit and a power transmission unit which are positioned at the central position; the optical signal unit comprises an optical fiber and a loose tube coated on the outer side of the optical fiber; the power transmission unit is formed by twisting a plurality of soft conductors, and the outer sides of the soft conductors are coated with insulating layers; feeder control units are symmetrically arranged on two sides of the optical signal unit and the power transmission unit; the optical signal unit, the power transmission unit and the two groups of feeder line control units form a cable core structure in a spiral stranding mode; the cladding of light signal unit, power transmission unit and feeder control unit outside has the inner sheath, and the outside cladding of inner sheath has the water blocking layer, and the outside cladding of water blocking layer has the armor, and the outside cladding of armor has the outer jacket. The utility model provides a unit transposition mode in the cable core structure is the spiral transposition, supports the production of big length, satisfies the power supply and the information transmission demand of check out test set under the ore deposit.
Description
Technical Field
The utility model belongs to the technical field of the optical cable, concretely relates to mining photoelectricity of resistant oily wear-resisting mixed optical cable of environmental protection.
Background
Through the change of times and the continuous promotion of scientific technology, the development technology of human beings on natural mineral reserves is also advanced, from the initial open-pit mining to the mining of mine caves to the scientific management mining at present. The technology is improved, and the occurrence and the loss of mine accidents are reduced. Each of these variations is based on advances in communication technology and mining technology. In addition to the normal power requirements, there is now an increasing demand for fiber optic cables during the development of mines. The development of the Internet of things and 5G technology realizes the intelligent monitoring of underground mining environment, and the types of domestic mining photoelectric mixed optical cables are few according to the market research in the early stage.
The existing mining photoelectric hybrid cable has the following defects: 1. the traditional photoelectric hybrid optical cable for the mine generally needs to be provided with a relay point to increase the distance of signal transmission, the relay point needs extra cost for construction, and the overall production cost of the optical cable is increased; 2. the outer sheath of the traditional mining photoelectric hybrid optical cable is mostly made of PE and PVC materials, and is poor in temperature resistance, corrosion resistance and wear resistance and not suitable for severe environments; 3. the traditional photoelectric hybrid optical cable for the mine has a large number of used cores, and is easy to cause internal friction in the moving process to influence the service performance; 4. the traditional photoelectric hybrid optical cable for the mine adopts a filling type sleeve, wherein the used factice and cable paste cannot be solidified by self-condensation during connection, a large amount of paper is required for cleaning, and the traditional photoelectric hybrid optical cable is not environment-friendly; the technical problems addressed by the above technical deficiencies need to be solved.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a mining photoelectricity hybrid cable of resistant oily wear-resisting to the not enough of prior art.
Realize the technical scheme of the utility model is that:
the utility model relates to an oil-resistant and wear-resistant environment-friendly photoelectric hybrid cable for mining, which comprises an optical signal unit and a power transmission unit which are positioned at the central position; the optical signal unit comprises an optical fiber and a loose tube coated on the outer side of the optical fiber; the power transmission unit is formed by twisting a plurality of soft conductors, and the outer sides of the soft conductors are coated with insulating layers; feeder control units are symmetrically arranged on two sides of the optical signal unit and the power transmission unit; the optical signal unit, the power transmission unit and the two groups of feeder line control units form a cable core structure in a spiral stranding mode; the optical signal unit, the power transmission unit and the feeder line control unit are coated with an inner protection layer, a water-resistant layer is coated on the outer side of the inner protection layer, an armor layer is coated on the outer side of the water-resistant layer, and an outer protection layer is coated on the outer side of the armor layer. The utility model provides an optical signal unit, power transmission unit and feed line control unit adopt the spiral transposition mode to constitute the cable core structure, under the prerequisite that satisfies power transmission and communication requirement, have reduced the material, have reduced whole manufacturing cost.
Preferably, a filling rope made of SAP resin is arranged in the inner protection layer, and polyurethane water-blocking glue is filled in gaps among the optical signal unit, the power transmission unit, the two groups of feeder line control units and the filling rope and the inner protection layer. The material of the filling rope in the utility model is SAP resin material, which plays the roles of filling, separating protection and water resistance to the cable core structure in the optical cable; SAP resin is kind novel macromolecular material, has the high water absorption function of absorbing several hundreds to several thousand water of dead weight, and has outstanding lock water function after absorbing water, guarantees can not lead to the inside intaking of optical cable because of the extrusion, guarantees the normal work of optical cable.
Preferably, the feeder line control unit includes two feeder lines for control, the feeder line includes a single conductor or a plurality of twisted conductors, the outer side of the single conductor or the plurality of twisted conductors is coated with an insulating material layer, and the insulating material layer is made of any one of low-density polyethylene, medium-density polyethylene, high-density polyethylene or low-smoke halogen-free flame-retardant polyolefin. The utility model provides a feed line control unit uses the structure that two feed lines constitute, can support the remote control of equipment instrument, supports the electric communication simultaneously.
Preferably, the flexible conductor in the power transmission unit is a twisted type 5 or type 6 flexible conductor, and the outer insulation layer thereof is a high-density polyethylene insulation layer.
Preferably, the inner protection layer is made of high-density polyethylene with the material use temperature reaching 100 ℃ and the specific gravity of 0.941-0.960. The utility model provides an inner sheath specific gravity is lighter than water, toughness is sufficient, can satisfy the removal of the higher number of times in the use crooked.
Preferably, the water-blocking layer positioned on the outer side of the inner protective layer is a single-component polyurethane water-blocking adhesive, and the water-blocking layer can provide better water-blocking performance for the traditional cable paste; a stainless steel tube armor layer is arranged on the outer side of the water resisting layer, and the surface resistance of the stainless steel tube is less than 1000 megaohms; the stainless steel tube armor layer has excellent chemical resistance, has the advantages of strong toughness and good flame retardance, provides excellent rat-proof performance, supports and protects the cable core structure, and improves the structural compression resistance of the optical cable.
Preferably, the outer sheath is a high-strength wear-resistant PUR outer sheath; the outer protective layer in the utility model is made of high-strength flame-retardant polyurethane, and has excellent oil-resistant and wear-resistant performances; the cable has a wide application temperature range, can be suitable for the temperature of between 30 ℃ below zero and 90 ℃, has the advantages of low-temperature flexibility, heat resistance, flame retardance, wear resistance, corrosion resistance and the like, has conventional performance superior to that of the traditional PVC and PE outer protective layer material, is made of a non-toxic environment-friendly material, and solves the problem that most of mining optical cables are not environment-friendly.
Preferably, the optical signal unit contains a maximum 12-core optical fiber, the optical fiber is a discrete optical fiber, and a low-smoke halogen-free flame-retardant sleeve or a dry loose sleeve is arranged on the outer side of the optical fiber; the optical fiber adopts standard color card full-color spectrum optical fiber, and is convenient for distinguishing and welding. The optical fiber in the utility model adopts a tight sheathing mode to sheath and mould, thereby improving the mobility of the optical cable and being convenient for installation and maintenance; the use of factice is avoided by adopting the tight-buffered optical fiber, and the optical fiber is more environment-friendly than the traditional mining optical cable.
By adopting the technical scheme, the utility model discloses following beneficial effect has:
(1) the cable core structure comprises an optical signal unit, a power transmission unit and a feeder control unit, and all units in the cable core structure are stranded into a whole in a spiral stranding mode, so that the cable core structure can be produced in a large length; the cable core structure meets the power supply and information transmission requirements of the underground detection equipment, the relay points are reduced, the cost is saved, the material usage is reduced, and the overall production cost is reduced.
(2) The cable core structure in the utility model adopts a spiral twisting mode, so that the wire coiling machine for cables is used for the production and manufacture of the cable core structure, and the long-length production is supported; meanwhile, the filling ropes and the polyurethane water-blocking glue made of SAP resin materials can be conveniently filled, so that the production efficiency is improved, and the water-blocking performance of the optical cable is excellent, more environment-friendly and easier to process.
(3) The utility model discloses feed line control unit uses the structure that two feed lines are constituteed, can support the remote control of equipment instrument, supports the electric communication simultaneously.
(4) The utility model discloses the armor uses stainless steel pipe as the protective layer, provides superior protection against rodents performance, and provides support and protection to the cable core structure, has improved the structural compression resistance of optical cable itself; if a disaster occurs, the communication performance of the optical cable is better ensured.
(5) The outer protective layer in the utility model adopts environment-friendly high-strength wear-resistant PUR material, which can provide better wear resistance than traditional PE material and PVC material, reduce the abrasion of optical cable laying and using process, and can be used for fixed laying and movable use; in addition, the PUR material is an environment-friendly material with excellent oil resistance, corrosion resistance and the like, does not cause environmental burden, and meets the requirement of sustainable development.
(6) The utility model provides a be equipped with the biggest 12 core optic fibres in the optical signal unit, the optic fibre outside is equipped with low smoke and zero halogen flame retardant sleeve pipe or dry-type loose tube, and optic fibre adopts tight set mode to overlap and moulds, has improved the mobility of optical cable to easy to assemble and maintenance adopt tight set optic fibre to avoid the use of oleamen, environmental protection more than traditional mining optical cable.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings, in which:
fig. 1 is a schematic structural view of the photoelectric hybrid cable of the present invention;
fig. 2 is a schematic structural diagram of the optical signal unit of the present invention.
In the figure, 1-optical signal unit, 11-optical fiber, 12-loose tube, 2-power transmission unit, 3-feeder control unit, 4-water-blocking glue, 5-inner protective layer, 6-water-blocking layer, 7-armor layer and 8-outer protective layer.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example (b): an oil-resistant and wear-resistant environment-friendly mining photoelectric hybrid optical cable is shown in figure 1, and comprises a cable core structure located at the center, wherein the cable core structure comprises an optical signal unit 1, a power transmission unit 2 and two groups of feeder line control units 3; the feeder control units 3 are symmetrically arranged on two sides of the optical signal unit 1 and the power transmission unit 2, and the optical signal unit 1, the power transmission unit 2 and the feeder control units 3 in the cable core structure are formed in a spiral stranding mode, so that on the premise of meeting the power transmission and communication requirements, materials are reduced, and the overall production cost is reduced; the optical signal unit 1 in this embodiment includes an optical fiber 11 and a loose tube 12 coated outside the optical fiber 11, the optical signal unit 1 includes a maximum 12-core optical fiber, the optical fiber 11 is a discrete optical fiber, and a low-smoke halogen-free flame-retardant sleeve or a dry loose tube 12 is disposed outside the optical fiber 11; the optical fiber 11 adopts a standard color card full-color spectrum optical fiber 11, so that the resolution and the fusion are convenient; the power transmission unit 2 in this embodiment is formed by twisting a plurality of soft conductors, and the outer sides of the soft conductors are coated with insulating layers; the soft conductors in the power transmission unit 2 are twisted by 5-type or 6-type soft conductors, and the outer insulating layer of the power transmission unit is a high-density polyethylene insulating layer; the feeder control unit 3 in this embodiment includes two feeders for control, the feeder includes a single conductor or a plurality of twisted conductors, the outside of the single conductor or the plurality of twisted conductors is coated with an insulating material layer, and the insulating material layer is made of any one of low-density polyethylene, medium-density polyethylene, high-density polyethylene, or low-smoke halogen-free flame-retardant polyolefin. The feeder control unit 3 in this embodiment uses a structure composed of two feeders, and can support remote control of equipment and instruments, and simultaneously support electrical communication.
The outside of cable core structure has interior sheath 5, water blocking layer 6, armor 7 and outer jacket 8 from inside to outside cladding in proper order in this embodiment, in order to guarantee the circularity of cable core structure, is equipped with the filler rope of SAP resin material in sheath 5, and the gap packing between optical signal unit 1, power transmission unit 2, two sets of feeder control unit 3 and filler rope and interior sheath 5 has polyurethane to hinder water glue 4. The filling rope in the embodiment is made of SAP resin, and plays roles in filling, separating protection and water resistance on a cable core structure in the optical cable; SAP resin is kind novel macromolecular material, has the high water absorption function of absorbing several hundreds to several thousand water of dead weight, and has outstanding lock water function after absorbing water, guarantees can not lead to the inside intaking of optical cable because of the extrusion, guarantees the normal work of optical cable.
The inner sheath layer 5 in this embodiment is preferably made of a high density polyethylene inner sheath layer 5 having a material use temperature of 100 degrees celsius and a specific gravity of 0.941 to 0.960. The inner sheath 5 in this embodiment is lighter than water and has sufficient toughness, and can satisfy higher-frequency moving bending in the use process. A layer of single-component polyurethane water-blocking glue is coated on the outer side of the inner protective layer 5 to serve as a water-blocking layer, and the water-blocking layer 6 can provide better water-blocking performance for the traditional cable paste; the outer side of the water resisting layer 6 is provided with a stainless steel tube armor layer 7, and the surface resistance of the stainless steel tube is less than 1000 megaohms; the stainless steel tube armor layer 7 has excellent chemical resistance, has the advantages of strong toughness and good flame retardance, provides excellent rat-proof performance, supports and protects the cable core structure, and improves the structural pressure resistance of the optical cable. An outer protective layer 8 is arranged on the outer side of the armor layer 7, and the outer protective layer 8 is a high-strength wear-resistant PUR outer protective layer 8; the outer protective layer 8 in the embodiment is made of high-strength flame-retardant polyurethane, so that the outer protective layer 8 has excellent oil resistance and wear resistance; the cable has a wide application temperature range, can be suitable for the temperature of between 30 ℃ below zero and 90 ℃, has the advantages of low-temperature flexibility, heat resistance, flame retardance, wear resistance, corrosion resistance and the like, has conventional performance superior to that of the traditional PVC and PE outer protective layer material, is made of a non-toxic environment-friendly material, and solves the problem that most of mining optical cables are not environment-friendly.
The embodiment also provides a preparation method of the mining photoelectric hybrid optical cable, which comprises the following steps:
(1) preparing an optical signal unit: the optical signal unit adopts a tight sleeve or a dry loose sleeve, the outer diameter of the tight sleeve or the dry loose sleeve is 3.0 +/-0.05 mm, the internal optical fiber adopts a single-mode optical fiber which can be used for long distance use, the excess length of the optical fiber is controlled to be about 0.1 percent, the use requirement of the excess length control of the optical fiber is met, and the sleeve in the optical signal unit can ensure that the optical signal unit can be moved to a certain degree for use;
(2) preparing a power transmission unit: in order to ensure the flexibility of the optical cable, the soft conductor of the power transmission unit is formed by twisting 5 or 6 types of soft copper wire strands, and the twisting die can be a polycrystalline twisting die; cross-linked polyethylene is selected outside the soft conductor, and an extrusion tube type extrusion mode is adopted, so that an insulating layer with the thickness of 0.30-0.35mm is extruded outside the soft conductor;
(3) preparing a feeder control unit: two groups of feeder line control units are selected, each group of feeder line control units is provided with two feeder lines for control, the feeder lines adopt flame-retardant polyolefin as an external insulating material layer, and the thickness of the insulating material layer is 0.22-0.25 mm;
(4) the optical signal unit, the power transmission unit and the feeder control unit in the above steps are made into a cable core structure in a spiral stranding mode, and the filling rope made of SAP resin is adopted for filling and rounding:
(5) a layer of high-density polyethylene is extruded outside the cable core structure in the step (4) to serve as an inner protection layer, and the thickness of the inner protection layer is 1.0 +/-0.1 mm; the processing temperature from the charging barrel to the machine head is set as follows in sequence: 160-170 ℃, 180-190 ℃, 190-200 ℃, 200-210 ℃, 210-220 ℃, 220-230 ℃, 230-240 ℃ and 220-225 ℃; the mould is a semi-extrusion tubular mould;
(6) the outer surface of the inner protective layer is coated with single-component polyurethane water-blocking glue as a water-blocking layer and is coated with a stainless steel tube armor layer with the thickness of 0.25mm, the armor layer can bear the pressure of about 20Mpa and protect each unit in the cable core structure from being damaged by external pressure;
(7) a layer of high-strength wear-resistant PUR is extruded outside the armor layer to serve as an outer protective layer, the outer diameter of the outer protective layer is 16 +/-0.5 mm, the final product is obtained, the thickness of the outer protective layer is 2 +/-0.1 mm, the PUR outer protective layer can isolate external chemical corrosion and wear, and the wear resistance is more than five times that of natural rubber (rubber sleeve cable); service temperature range of the outer sheath: the temperature is between 30 ℃ below zero and 90 ℃ below zero, and the use temperature range is wide.
The optical signal unit, the power transmission unit and the feeder line control unit in the embodiment form a cable core structure in a spiral stranding mode, and the cable core structure reduces material use and overall production cost on the premise of meeting power transmission and communication requirements; the cable core structure adopts spiral twisting, a cable disc twisting machine can be used, large-length production is supported, meanwhile, filling is convenient to add, the production efficiency is improved, and the water blocking requirement of the optical cable is met; the feeder line control unit adopts a structure consisting of two feeder lines, can support the remote control of equipment and instruments and simultaneously support the electric communication; the optical cable in the embodiment is provided with the armor layer, the armor layer uses the stainless steel tube as the protective layer, the strength of the optical cable is better than that of a traditional corrugated steel belt and an aluminum belt, the excellent rat-proof performance is provided, the cable core structure is supported and protected, and the structural pressure resistance of the optical cable is improved; the outer jacket of the optical cable of this embodiment uses nontoxic environment-friendly high-strength wear-resistant PUR material, and the application of this material makes the outer jacket not only resistant oil wear-resisting, and the protection optical cable does not receive the damage in the use, not only can be used to fixed laying, can also remove the use, and this material is nontoxic environmental protection material, can not cause the burden to the environment.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. An oil-resistant and wear-resistant environment-friendly mining photoelectric hybrid optical cable is characterized by comprising an optical signal unit and an electric power transmission unit which are positioned at the central position; the optical signal unit comprises an optical fiber and a loose tube coated on the outer side of the optical fiber; the power transmission unit is formed by twisting a plurality of soft conductors, and the outer sides of the soft conductors are coated with insulating layers; feeder control units are symmetrically arranged on two sides of the optical signal unit and the power transmission unit; the optical signal unit, the power transmission unit and the two groups of feeder line control units form a cable core structure in a spiral stranding mode; the optical signal unit, the power transmission unit and the feeder line control unit are coated with an inner protection layer, a water-resistant layer is coated on the outer side of the inner protection layer, an armor layer is coated on the outer side of the water-resistant layer, and an outer protection layer is coated on the outer side of the armor layer.
2. The mining photoelectric hybrid optical cable according to claim 1, wherein a filler rope made of SAP resin is arranged in the inner sheath, and polyurethane water-blocking glue is filled in gaps among the optical signal units, the power transmission units, the two groups of feeder line control units and the filler rope and the inner sheath.
3. The mining photoelectric hybrid optical cable according to claim 1, wherein the feeder control unit comprises two feeders for control, the feeder comprises a single conductor or a plurality of stranded conductors, the single conductor or the plurality of stranded conductors are coated with an insulating material layer, and the insulating material layer is made of any one of low-density polyethylene, medium-density polyethylene, high-density polyethylene or low-smoke halogen-free flame-retardant polyolefin.
4. The mining optoelectric hybrid cable of claim 1, wherein the flexible conductors in the power transmission unit are stranded class 5 or class 6 flexible conductors, and the outer insulation layer thereof is a high density polyethylene insulation layer.
5. The mining photoelectric hybrid optical cable according to claim 1, wherein the inner sheath is made of a high-density polyethylene inner sheath having a material use temperature of 100 ℃ and a specific gravity of 0.941-0.960.
6. The mining photoelectric hybrid optical cable according to claim 1, wherein the water-blocking layer on the outer side of the inner sheath is a single-component polyurethane water-blocking adhesive, a stainless steel tube armor layer is arranged on the outer side of the water-blocking layer, and the surface resistance of the stainless steel tube is less than 1000 megaohms.
7. The mining opto-electric hybrid cable of claim 1, wherein the outer jacket is a high strength abrasion resistant PUR outer jacket.
8. The mining photoelectric hybrid optical cable according to claim 1, wherein the optical signal unit comprises a maximum 12-core optical fiber, the optical fiber is a discrete optical fiber, and a low-smoke halogen-free flame-retardant sleeve or a dry loose sleeve is arranged on the outer side of the optical fiber; the optical fiber adopts a standard color card full-color spectrum optical fiber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022303212.0U CN212989725U (en) | 2020-10-16 | 2020-10-16 | Oil-resistant and wear-resistant environment-friendly mining photoelectric hybrid optical cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022303212.0U CN212989725U (en) | 2020-10-16 | 2020-10-16 | Oil-resistant and wear-resistant environment-friendly mining photoelectric hybrid optical cable |
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| CN212989725U true CN212989725U (en) | 2021-04-16 |
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| CN202022303212.0U Active CN212989725U (en) | 2020-10-16 | 2020-10-16 | Oil-resistant and wear-resistant environment-friendly mining photoelectric hybrid optical cable |
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