CN114005590A - Comprehensive protection B1-level cable for rail transit - Google Patents
Comprehensive protection B1-level cable for rail transit Download PDFInfo
- Publication number
- CN114005590A CN114005590A CN202111296321.7A CN202111296321A CN114005590A CN 114005590 A CN114005590 A CN 114005590A CN 202111296321 A CN202111296321 A CN 202111296321A CN 114005590 A CN114005590 A CN 114005590A
- Authority
- CN
- China
- Prior art keywords
- layer
- cable
- rail transit
- comprehensive protection
- insulating layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052802 copper Inorganic materials 0.000 claims abstract description 36
- 239000010949 copper Substances 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000003063 flame retardant Substances 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 229920000098 polyolefin Polymers 0.000 claims abstract description 13
- 239000000779 smoke Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000004888 barrier function Effects 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 88
- 238000004804 winding Methods 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 29
- 239000011241 protective layer Substances 0.000 claims description 29
- 239000010445 mica Substances 0.000 claims description 15
- 229910052618 mica group Inorganic materials 0.000 claims description 15
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 13
- 230000009970 fire resistant effect Effects 0.000 claims description 10
- 229920002379 silicone rubber Polymers 0.000 claims description 9
- 239000003365 glass fiber Substances 0.000 claims description 8
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 7
- 239000008397 galvanized steel Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 6
- 230000007480 spreading Effects 0.000 abstract description 4
- 239000011256 inorganic filler Substances 0.000 abstract description 2
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 43
- 230000000670 limiting effect Effects 0.000 description 20
- 230000007246 mechanism Effects 0.000 description 18
- 230000000694 effects Effects 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 241000257303 Hymenoptera Species 0.000 description 6
- 241000700159 Rattus Species 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 230000002441 reversible effect Effects 0.000 description 6
- YKPUWZUDDOIDPM-SOFGYWHQSA-N capsaicin Chemical compound COC1=CC(CNC(=O)CCCC\C=C\C(C)C)=CC=C1O YKPUWZUDDOIDPM-SOFGYWHQSA-N 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000005946 Cypermethrin Substances 0.000 description 2
- 229960002504 capsaicin Drugs 0.000 description 2
- 235000017663 capsaicin Nutrition 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- KAATUXNTWXVJKI-UHFFFAOYSA-N cypermethrin Chemical compound CC1(C)C(C=C(Cl)Cl)C1C(=O)OC(C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 KAATUXNTWXVJKI-UHFFFAOYSA-N 0.000 description 2
- 229960005424 cypermethrin Drugs 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000035929 gnawing Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
本发明涉及一种轨道交通用综合防护B1级电缆，包括铜导体，所述铜导体的外部绕包有耐火层，所述耐火层的外部套设有绝缘层，所述绝缘层的外部设置有金属护层，所述金属护层与绝缘层之间填充有无机填充材料，所述金属护层的外部依次套设有隔氧层、包带层和外护层；通过双层云母带对铜导体进行绕包，保证了铜导体绕包的密封性，配合金属护层的低烟无卤阻燃聚烯烃护套，保障电缆在燃烧过程中火焰无法穿透，降低可燃物的燃烧量，从而降低热释放总量及释放速率，阻止火焰向上蔓延。
The invention relates to a B1-level cable for comprehensive protection for rail transit, comprising a copper conductor, the outer part of the copper conductor is wrapped with a refractory layer, the outer part of the refractory layer is covered with an insulating layer, and the outer part of the insulating layer is provided with a refractory layer. Metal sheath, the metal sheath and the insulating layer are filled with inorganic fillers, and the outside of the metal sheath is sequentially sheathed with an oxygen barrier layer, a tape layer and an outer sheath; The conductor is wrapped to ensure the tightness of the copper conductor wrapping, and the low-smoke halogen-free flame retardant polyolefin sheath of the metal sheath is used to ensure that the flame cannot penetrate the cable during the burning process, reducing the burning amount of combustibles, thereby Reduce the total amount of heat released and the release rate to prevent the flame from spreading upwards.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a comprehensive protection B-level cable for rail transit.
Background
With the obvious acceleration of the urbanization process, rail transit becomes the most important transport tool for solving urban congestion and ensuring smooth travel of citizens; the cable product plays an important role in power transmission and signal transmission of rail transit.
Traditional cable is in the use, the damage appears easily when the condition of a fire cable itself appears, cause the influence to the transmission of information, simultaneously in the moist environment of long-term use in-process unavoidable contact, the entering of vapor not only reduces insulating material resistance, cause the oxidation of conductor material more easily simultaneously, gnawing of mouse ant is the important factor that causes the cable short circuit in many circuits, and track traffic cable requires that the cable must possess the ability of stable power supply and signal transmission, consequently must prevent to appear because the mouse ant gnaws and causes the problem that electric power system interrupted.
Disclosure of Invention
The technical problem solved by the scheme is as follows:
(1) how to adopt double-layer mica tapes to wrap the copper conductor through the double-layer mica tapes, so that the wrapping tightness of the copper conductor is ensured;
(2) how through setting up high fire-retardant oxygen layer that separates, the fire-retardant polyolefin sheath of low smoke and zero halogen of cooperation metal sheath ensures that the cable flame can't pierce through in the combustion process, reduces the combustion volume of combustible substance to reduce heat release total amount and release rate, prevent that flame from upwards stretching.
The purpose of the invention can be realized by the following technical scheme: a comprehensive protection B-level cable for rail transit comprises a copper conductor, wherein a fire-resistant layer is wound outside the copper conductor, an insulating layer is sleeved outside the fire-resistant layer, a metal protective layer is arranged outside the insulating layer, inorganic filling materials are filled between the metal protective layer and the insulating layer, and an oxygen isolation layer, a wrapping tape layer and an outer protective layer are sequentially sleeved outside the metal protective layer;
the comprehensive protection B-level cable for rail transit is prepared by the following steps:
the method comprises the following steps: wrapping the surface of the copper conductor with a refractory layer by wrapping equipment, and sleeving an insulating layer on the outer part of the refractory layer;
step two: extruding a metal protective layer outside the insulating layer through external extrusion equipment, and filling an inorganic filling material in a gap between the metal protective layer and the insulating layer;
step three: and the oxygen isolation layer, the belting layer and the outer protective layer are sequentially extruded out of the metal protective layer through external extrusion molding equipment.
The invention has further technical improvements that: the fireproof layer is formed by wrapping two layers of mica tapes simultaneously, the wrapping effect of the copper conductor is improved by wrapping the two layers of mica tapes, and the condition that the copper conductor is leaked easily when the single-layer mica tapes are wrapped is reduced.
The invention has further technical improvements that: the insulating layer is made of ceramic silicon rubber materials, the ceramic silicon rubber materials are quickly crusted under the condition of high-temperature flame combustion, and meanwhile, the hydrophobicity and the hard shell of the ceramic silicon rubber materials can well guarantee that short circuits do not occur in the fire-resistant spraying and impact-resistant tests of the cable.
The invention has further technical improvements that: the metal sheath is that low smoke and zero halogen flame retardant polyolefin sheath and galvanized steel band carry out the armor and form, adopts the hot-blast processing to guarantee the leakproofness of overlapping department through galvanized steel band overlapping department, further increases pressure through increasing interior outer mould angle difference and guarantees the bonding compactness of galvanized steel band and low smoke and zero halogen flame retardant polyolefin sheath.
The invention has further technical improvements that: the inorganic filling material is an alkali-free glass fiber filling rope material, the phenomenon that the insulation resistance is reduced and then rises can occur in the ceramic silicon rubber in the incrustation process, and the alkali-free glass fiber filling rope material plays a role in fully guaranteeing the stability of the insulation resistance.
The invention has further technical improvements that: separate the oxygen layer and separate the oxygen layer for high fire-retardant, adopt crowded package fire clay to separate the oxygen layer, the fire-retardant polyolefin sheath of low smoke and zero halogen of cooperation metal sheath, the guarantee cable flame can't pierce through in the combustion process, reduces the combustion volume of combustible substance to reduce heat release total amount and release rate, prevent that flame from upwards spreading.
The invention has further technical improvements that: the wrapping tape layer is wrapped by alkali-free glass fiber tapes.
The invention has further technical improvements that: the outer jacket is a low-smoke halogen-free flame-retardant polyolefin jacket, a certain amount of chemicals such as capsaicin and cypermethrin are added into the material of the outer jacket, so that the jacket material has smell aversive to rats and ants to avoid the harm of the rats and the ants to cables, a special chemical reagent only drives the rats and the ants away, chemical pollution to the surrounding environment and equipment is avoided, and the long-term use safety of the jacket layer can be ensured by adding a certain proportion of ultraviolet absorbers into the material of the outer jacket layer.
The invention has further technical improvements that: the first winding drum and the second winding drum in the winding equipment rotate, and the first winding drum and the second winding drum are matched with each other to wind the refractory layer on the outer portion of the copper conductor, so that the effect of the refractory layer on the copper conductor in the winding process is guaranteed.
The invention has further technical improvements that: the wrapping equipment comprises a base, the top fixed mounting of base has the shell, the transmission chamber has been seted up to the inside of shell, the inside in transmission chamber is provided with drive mechanism, drive mechanism include with transmission intracavity wall fixed connection's first limiting plate and second limiting plate, be provided with the transmission shaft between first limiting plate and the second limiting plate, the top activity of transmission shaft runs through first limiting plate and is connected with first pivot through the transmission of bevel gear group, the bottom activity of transmission shaft runs through second limiting plate and fixed mounting has first bevel gear, first bevel gear's below is provided with the second pivot.
The invention has further technical improvements that: and a second bevel gear and a third bevel gear which are symmetrically arranged are fixedly arranged in the middle of the second rotating shaft, and the second bevel gear is in meshed connection with the first bevel gear.
The invention has further technical improvements that: the winding device is characterized in that a first cavity and a second cavity are formed in the shell, a driving motor is fixedly mounted in the first cavity, one end of a first rotating shaft movably penetrates through the first cavity and is fixedly connected with the output end of the driving motor, a groove is formed in one side face of the shell, and a winding mechanism is arranged in the groove.
The invention has further technical improvements that: the winding mechanism comprises a first rotating pipe, a first winding drum fixedly connected with one end of the first rotating pipe, a mounting groove is formed in the middle of the first winding drum, a second winding drum is arranged inside the mounting groove, a second rotating pipe is sleeved inside the first rotating pipe, and one end of the second rotating pipe is fixedly connected with the second winding drum through a mounting sleeve.
The invention has further technical improvements that: the inner wall fixed mounting of recess has first mounting panel and second mounting panel, first rotation pipe activity runs through first mounting panel and second mounting panel, the other end activity of first pivot runs through the recess and is connected with first rotation pipe transmission through belt pulley and belt, the one end activity of second pivot runs through recess and fixed mounting and has the straight-teeth gear, the second mounting panel rotates through the bearing and is connected with the transmission cover, the inner wall of transmission cover is provided with a plurality of rack, the transmission cover is connected with the straight-teeth gear transmission through a plurality of rack, the transmission cover passes through belt pulley and belt and is connected with the second rotation pipe transmission.
The invention has further technical improvements that: the adjusting mechanism comprises a fixed plate fixedly connected with the inner wall of the second cavity, a moving block is arranged on one side of the fixed plate, third limiting plates are fixedly mounted at the top and the bottom of the moving block, four guide rods are fixedly mounted on one side face, facing the moving block, of the fixed plate, and one ends of the four guide rods movably penetrate through the corresponding third limiting plates.
The invention has further technical improvements that: the other side of the moving block is provided with a rotating plate, the middle of the rotating plate is provided with a sliding groove, the moving block is movably connected with the sliding groove through a fixing pin, one end of the rotating plate is rotatably connected with the inner wall of the second cavity through a rotating seat, the other end of the rotating plate is rotatably connected with a hydraulic push rod through a rotating seat, and one end of the hydraulic push rod is rotatably connected with the inner wall of the second cavity through a rotating seat.
The invention has further technical improvements that: the other end of the second rotating shaft movably penetrates through the second cavity and the fixed plate and is rotatably connected with the moving block through a bearing.
The invention has further technical improvements that: the middle part of shell has seted up the passageway, transmission chamber and recess all are linked together with the passageway.
Compared with the prior art, the invention has the beneficial effects that:
1. when the winding device is used, the transmission shaft is driven to rotate by the rotation of the first rotating shaft in cooperation with the bevel gear set, so that the first bevel gear is matched with the second bevel gear to drive the second rotating shaft to rotate in the forward direction, the first winding drum and the second winding drum rotate in the reverse direction, two layers of crossed mica tapes are wound outside the copper conductor, and the winding tightness of the copper conductor is guaranteed; through the extension of hydraulic push rod for the rotor plate drives the movable block and removes under the direction spacing condition of four guide bars, thereby makes the movable block promote the second pivot and remove, makes third bevel gear and first bevel gear meshing be connected, makes the transmission shaft drive the reverse operation of second pivot, makes first winding drum and second winding drum syntropy rotate, winds the mica tape of two-layer overlapping around the package to the outside of copper conductor, thereby improves the thermal-insulated effect to the copper conductor.
2. When the flame-retardant cable is used, the oxygen-insulating layer is a high flame-retardant oxygen-insulating layer, the extruded fireproof mud oxygen-insulating layer is adopted, and the low-smoke halogen-free flame-retardant polyolefin sheath of the metal sheath layer is matched, so that the condition that flame cannot penetrate through the cable in the combustion process is ensured, the combustion quantity of combustible materials is reduced, the total heat release amount and the release rate are reduced, and the flame is prevented from spreading upwards.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a cable construction according to the present invention;
FIG. 2 is a schematic structural view of the wrapping apparatus of the present invention;
FIG. 3 is a schematic view of the structure of the transmission mechanism of the present invention;
FIG. 4 is a schematic view of an adjustment mechanism according to the present invention;
FIG. 5 is a perspective view of the adjusting mechanism of the present invention;
FIG. 6 is a schematic structural view of a wrapping mechanism according to the present invention;
fig. 7 is a schematic view of a partial structure of the wrapping mechanism of the present invention.
In the figure: 1. an outer jacket; 2. a belting layer; 3. an oxygen barrier layer; 4. a metal protective layer; 5. an insulating layer; 6. a refractory layer; 7. an inorganic filler material; 8. a copper conductor; 9. a base; 10. a housing; 11. an adjustment mechanism; 12. a channel; 13. a drive motor; 14. a transmission mechanism; 15. a wrapping mechanism; 1101. a guide bar; 1102. a fixing plate; 1103. a moving block; 1104. a rotating plate; 1105. a hydraulic push rod; 1106. a third limiting plate; 1401. a first limit plate; 1402. a first bevel gear; 1403. a second bevel gear; 1404. a second rotating shaft; 1405. a third bevel gear; 1406. a second limiting plate; 1407. a drive shaft; 1408. a first rotating shaft; 1501. a first take-up drum; 1502. a second take-up reel; 1503. a first rotation pipe; 1504. a second rotating tube; 1505. a transmission sleeve; 1506. a straight gear.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
Referring to fig. 1, the comprehensive protection B1-grade cable for rail transit includes a copper conductor 8, a fire-resistant layer 6 is wrapped outside the copper conductor 8, an insulating layer 5 is sleeved outside the fire-resistant layer 6, a metal protective layer 4 is arranged outside the insulating layer 5, an inorganic filling material 7 is filled between the metal protective layer 4 and the insulating layer 5, and an oxygen isolation layer 3, a wrapping tape layer 2 and an outer protective layer 1 are sequentially sleeved outside the metal protective layer 4;
the comprehensive protection B1-grade cable for rail transit is prepared by the following steps:
the method comprises the following steps: wrapping the surface of the copper conductor 8 with a refractory layer 6 by wrapping equipment, and sleeving the outer part of the refractory layer 6 with an insulating layer 5;
step two: extruding the metal protective layer 4 out of the insulating layer 5 by external extrusion equipment, and filling an inorganic filling material 7 in a gap between the metal protective layer 4 and the insulating layer 5;
step three: the oxygen-isolating layer 3, the belting layer 2 and the outer protective layer 1 are extruded out of the metal protective layer 4 in sequence by external extrusion molding equipment.
As shown in fig. 1, the fire-resistant layer 6 is formed by wrapping two layers of mica tapes simultaneously, the wrapping effect of the copper conductor 8 is improved by wrapping the two layers of mica tapes, the leakage of the copper conductor 8 is reduced when a single-layer mica tape is wrapped, the insulating layer 5 is made of ceramic silicon rubber material, the ceramic silicon rubber material is rapidly encrusted under the condition of high-temperature combustion of flame, and meanwhile, the hydrophobicity and the hard shell of the ceramic silicon rubber material can well ensure that the cable is not short-circuited in the tests of fire resistance, spraying and impact resistance.
Referring to fig. 1, the metal sheath 4 is formed by armoring a low-smoke halogen-free flame-retardant polyolefin sheath and a galvanized steel strip, the overlapping portion of the galvanized steel strip is treated by hot air to ensure the sealing property of the overlapping portion, the pressure is further increased by increasing the angle difference between the inner mold and the outer mold to ensure the bonding tightness of the galvanized steel strip and the low-smoke halogen-free flame-retardant polyolefin sheath, the inorganic filling material 7 is an alkali-free glass fiber filling rope material, the phenomenon that the insulation resistance is reduced and then increased occurs in the ceramic silicon rubber during the crusting process, and the alkali-free glass fiber filling rope material plays a role in fully ensuring the stability of the insulation resistance at the moment.
Referring to fig. 1, the oxygen-barrier layer 3 is a high flame-retardant oxygen-barrier layer, and is wrapped by a low-smoke halogen-free flame-retardant polyolefin sheath of the metal sheath 4, so as to ensure that flame cannot penetrate through the cable during combustion, and reduce the combustion amount of combustible substances, thereby reducing the total heat release amount and release rate, and preventing flame from spreading upwards, and the wrapping layer 2 is wrapped by an alkali-free glass fiber tape.
As shown in fig. 1, the outer protective layer 1 is a low-smoke halogen-free flame-retardant polyolefin sheath, and a certain amount of chemicals such as capsaicin and cypermethrin are added to the material of the outer protective layer 1, so that the sheath material has smell aversive to rats and ants to prevent the rats and ants from damaging the cable, the special chemical reagent only drives away the rats and ants, and chemical pollution to the surrounding environment and equipment is not caused, and the long-term use safety of the protective layer can be ensured by adding a certain proportion of ultraviolet absorber to the material of the outer protective layer 1.
Referring to fig. 2, the first winding drum 1501 and the second winding drum 1502 of the winding device rotate to mutually match with each other to wind the refractory layer 6 around the exterior of the copper conductor 8, so that the effect of the refractory layer 6 on the copper conductor 8 is ensured.
Referring to fig. 2 and 3, the wrapping device includes a base 9, a housing 10 is fixedly mounted on the top of the base 9, a transmission cavity is formed inside the housing 10, a transmission mechanism 14 is disposed inside the transmission cavity, the transmission mechanism 14 includes a first limiting plate 1401 and a second limiting plate 1406, the first limiting plate 1401 and the second limiting plate 1406 are fixedly connected to an inner wall of the transmission cavity, a transmission shaft 1407 is disposed between the first limiting plate 1401 and the second limiting plate 1406, a top end of the transmission shaft 1407 movably penetrates through the first limiting plate 1401 and is connected to a first rotating shaft 1408 through a bevel gear set in a transmission manner, a bottom end of the transmission shaft 1407 movably penetrates through the second limiting plate 1406 and is fixedly mounted with a first bevel gear 1402, a second rotating shaft 1404 is disposed below the first bevel gear 1402, a second bevel gear 1403 and a third bevel gear 1405 are fixedly mounted in the middle of the second rotating shaft 1404, and the second bevel gear 1403 and the first bevel gear 1402 are connected in a meshing manner.
The transmission shaft 1407 is driven to rotate through the rotation of the first rotating shaft 1408 in cooperation with the bevel gear set, so that the first bevel gear 1402 in cooperation with the second bevel gear 1403 drives the second rotating shaft 1404 to rotate in the forward direction, the first winding drum 1501 and the second winding drum 1502 rotate in the reverse direction, two layers of crossed mica tapes are wound on the outer portion of the copper conductor 8, and the sealing performance of the copper conductor 8 in the winding process is guaranteed.
Referring to fig. 1, 6 and 7, a first cavity and a second cavity are formed in the housing 10, a driving motor 13 is fixedly installed in the first cavity, one end of a first rotating shaft 1408 movably penetrates through the first cavity and is fixedly connected with an output end of the driving motor 13, a groove is formed in one side surface of the housing 10, a winding mechanism 15 is arranged in the groove, the winding mechanism 15 includes a first rotating pipe 1503, one end of the first rotating pipe 1503 is fixedly connected with a first winding cylinder 1501, a mounting groove is formed in the middle of the first winding cylinder 1501, a second winding cylinder 1502 is arranged in the mounting groove, a second rotating pipe 1504 is sleeved in the first rotating pipe 1503, one end of the second rotating pipe 1504 is fixedly connected with the second winding cylinder 1502 through a mounting sleeve, a first mounting plate and a second mounting plate are fixedly installed on the inner wall of the groove, and the first rotating pipe 1503 movably penetrates through the first mounting plate and the second mounting plate, the other end of the first rotating shaft 1408 movably penetrates through the groove and is in transmission connection with the first rotating pipe 1503 through a belt pulley and a belt, one end of the second rotating shaft 1404 movably penetrates through the groove and is fixedly provided with a straight gear 1506, the second mounting plate is rotatably connected with a transmission sleeve 1505 through a bearing, the inner wall of the transmission sleeve 1505 is provided with a plurality of racks, the transmission sleeve 1505 is in transmission connection with the straight gear 1506 through the plurality of racks, and the transmission sleeve 1505 is in transmission connection with the second rotating pipe 1504 through the belt pulley and the belt.
Referring to fig. 4 and 5, the adjusting mechanism 11 includes a fixing plate 1102 fixedly connected to the inner wall of the second cavity, a moving block 1103 is disposed on one side of the fixing plate 1102, third limiting plates 1106 are fixedly mounted on the top and the bottom of the moving block 1103, four guide rods 1101 are fixedly mounted on one side of the fixing plate 1102 facing the moving block 1103, one ends of the four guide rods 1101 movably penetrate through the corresponding third limiting plates 1106, a rotating plate 1104 is disposed on the other side of the moving block 1103, a sliding slot is formed in the middle of the rotating plate 1104, the moving block 1103 is movably connected to the sliding slot through a fixing pin, one end of the rotating plate 1104 is rotatably connected to the inner wall of the second cavity through a rotating seat, the other end of the rotating plate 1104 is rotatably connected to the hydraulic push rod 1105 through a rotating seat, one end of the hydraulic push rod 1105 is rotatably connected to the inner wall of the second cavity through a rotating seat, and the other end of the second rotating shaft 1404 movably penetrates through the second cavity and the fixing plate 1102 and is rotatably connected to the moving block 1103 through a bearing.
Through the extension of hydraulic push rod 1105, make the rotor plate 1104 drive the movable block 1103 and remove under the direction spacing condition of four guide bars 1101, thereby make the movable block 1103 promote the second pivot 1404 and remove, make third bevel gear 1405 and first bevel gear 1402 meshing connection, make transmission shaft 1407 drive the reverse operation of second pivot 1404, make first winding cylinder 1501 and second winding cylinder 1502 syntropy rotate, wind the mica tape of two-layer overlapping around the package to the outside of copper conductor 8, thereby improve the thermal-insulated effect to copper conductor 8.
Referring to fig. 2, a channel 12 is formed in the middle of the housing 10, and the transmission cavity and the groove are both communicated with the channel 12.
The working principle is as follows: when the winding device is used, firstly, the first rotating shaft 1408 is rotationally matched with the bevel gear set to drive the transmission shaft 1407 to rotate, so that the first bevel gear 1402 is matched with the second bevel gear 1403 to drive the second rotating shaft 1404 to rotate in the forward direction, the first winding cylinder 1501 and the second winding cylinder 1502 rotate in the reverse direction, two layers of crossed mica tapes are wound outside the copper conductor 8, and the winding tightness of the copper conductor 8 is ensured; through the extension of hydraulic push rod 1105, make the rotor plate 1104 drive the movable block 1103 and remove under the direction spacing condition of four guide bars 1101, thereby make the movable block 1103 promote the second pivot 1404 and remove, make third bevel gear 1405 and first bevel gear 1402 meshing connection, make transmission shaft 1407 drive the reverse operation of second pivot 1404, make first winding cylinder 1501 and second winding cylinder 1502 syntropy rotate, wind the mica tape of two-layer overlapping around the package to the outside of copper conductor 8, thereby improve the thermal-insulated effect to copper conductor 8.
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a comprehensive protection B1 level cable for track traffic which characterized in that: the insulating layer is characterized by comprising a copper conductor (8), a fire-resistant layer (6) is wound on the outer portion of the copper conductor (8), an insulating layer (5) is sleeved on the outer portion of the fire-resistant layer (6), a metal protective layer (4) is arranged on the outer portion of the insulating layer (5), an inorganic filling material (7) is filled between the metal protective layer (4) and the insulating layer (5), and an oxygen isolation layer (3), a wrapping tape layer (2) and an outer protective layer (1) are sequentially sleeved on the outer portion of the metal protective layer (4);
the comprehensive protection B1-grade cable for rail transit is prepared by the following steps:
the method comprises the following steps: wrapping the surface of the copper conductor (8) with a refractory layer (6) by using wrapping equipment, and sleeving the outer part of the refractory layer (6) with an insulating layer (5);
step two: extruding the metal protective layer (4) outside the insulating layer (5) by external extrusion equipment, and filling an inorganic filling material (7) in a gap between the metal protective layer (4) and the insulating layer (5);
step three: the oxygen isolation layer (3), the wrapping tape layer (2) and the outer protective layer (1) are sequentially extruded out of the metal protective layer (4) through external extrusion molding equipment.
2. The cable with the comprehensive protection level B1 for rail transit as claimed in claim 1, wherein the fire-resistant layer (6) is formed by wrapping two layers of mica tapes simultaneously.
3. The comprehensive protection B1 grade cable for rail transit as claimed in claim 1, wherein the insulating layer (5) is made of a silicon rubber ceramic material.
4. The comprehensive protection B1-grade cable for rail transit according to claim 1, wherein the metal sheath (4) is formed by sheathing a low-smoke halogen-free flame-retardant polyolefin sheath and galvanized steel strips.
5. The comprehensive protection B1 grade cable for rail transit as claimed in claim 1, wherein the inorganic filling material (7) is alkali-free glass fiber filling rope material.
6. The cable for rail transit comprehensive protection of grade B1 as claimed in claim 1, wherein the oxygen barrier layer (3) is an extruded refractory clay oxygen barrier layer.
7. The cable with comprehensive protection for rail transit grade B1 as claimed in claim 1, wherein the wrapping layer (2) is wrapped with alkali-free glass fiber tape.
8. The comprehensive protection B1-grade cable for rail transit according to claim 1, wherein the outer sheath (1) is a low-smoke halogen-free flame-retardant polyolefin sheath.
9. The cable with the comprehensive protection level B1 for rail transit as claimed in claim 1, wherein the first winding drum (1501) and the second winding drum (1502) in the winding device rotate to mutually wrap the fire-resistant layer (6) on the outer portion of the copper conductor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111296321.7A CN114005590A (en) | 2021-11-03 | 2021-11-03 | Comprehensive protection B1-level cable for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111296321.7A CN114005590A (en) | 2021-11-03 | 2021-11-03 | Comprehensive protection B1-level cable for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114005590A true CN114005590A (en) | 2022-02-01 |
Family
ID=79926978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111296321.7A Pending CN114005590A (en) | 2021-11-03 | 2021-11-03 | Comprehensive protection B1-level cable for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114005590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2035787A (en) * | 2023-05-29 | 2024-12-05 | Jiangsu Hengtong Wire & Cable Tech Co Ltd | Easily identified tensile type b1-level subway rail traffic cable and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203521025U (en) * | 2013-10-22 | 2014-04-02 | 郑州电缆有限公司 | Middle voltage fireproof cable |
| CN206116074U (en) * | 2016-08-31 | 2017-04-19 | 上海新益电力线路器材有限公司 | Pottery vitrification silicon rubber insulation stainless steel sheath aluminum alloy fire resisting cable |
| CN207217172U (en) * | 2017-05-26 | 2018-04-10 | 扬州中大电缆有限公司 | A kind of high fire-retardance fireproof power cable |
| CN210777891U (en) * | 2019-11-19 | 2020-06-16 | 浙江万马股份有限公司 | Multi-core fire-resistant and fire-resistant low-voltage cable |
| CN212342342U (en) * | 2020-07-08 | 2021-01-12 | 安徽华宇电缆集团有限公司 | Low-heat low-toxicity dripless B1-grade flame-retardant multipurpose wire |
| CN212782841U (en) * | 2020-08-12 | 2021-03-23 | 中天科技海缆股份有限公司 | A corrugated metal sheath flame-retardant B1-level fire-resistant single-core power cable |
-
2021
- 2021-11-03 CN CN202111296321.7A patent/CN114005590A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203521025U (en) * | 2013-10-22 | 2014-04-02 | 郑州电缆有限公司 | Middle voltage fireproof cable |
| CN206116074U (en) * | 2016-08-31 | 2017-04-19 | 上海新益电力线路器材有限公司 | Pottery vitrification silicon rubber insulation stainless steel sheath aluminum alloy fire resisting cable |
| CN207217172U (en) * | 2017-05-26 | 2018-04-10 | 扬州中大电缆有限公司 | A kind of high fire-retardance fireproof power cable |
| CN210777891U (en) * | 2019-11-19 | 2020-06-16 | 浙江万马股份有限公司 | Multi-core fire-resistant and fire-resistant low-voltage cable |
| CN212342342U (en) * | 2020-07-08 | 2021-01-12 | 安徽华宇电缆集团有限公司 | Low-heat low-toxicity dripless B1-grade flame-retardant multipurpose wire |
| CN212782841U (en) * | 2020-08-12 | 2021-03-23 | 中天科技海缆股份有限公司 | A corrugated metal sheath flame-retardant B1-level fire-resistant single-core power cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2035787A (en) * | 2023-05-29 | 2024-12-05 | Jiangsu Hengtong Wire & Cable Tech Co Ltd | Easily identified tensile type b1-level subway rail traffic cable and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104992786B (en) | The production technology of high-temperature flexible environmental-protection fireproof flame-retardant flexible electric cable | |
| CN2696086Y (en) | Fire-resistant and refractory environmental protection wire and cable | |
| CN110911039A (en) | Novel safe and environment-friendly rail transit cable | |
| CN114005590A (en) | Comprehensive protection B1-level cable for rail transit | |
| CN103123818B (en) | Multilayer protective low-smoke zero-halogen flame retardant fireproof control cable and manufacture method thereof | |
| CN204904895U (en) | Insulating fire -retardant fire resisting cable | |
| CN204440974U (en) | Power cable for rail transit | |
| CN202171970U (en) | Low-smoke halogen-free flame retardant fireproof cable used in urban railway system | |
| CN109545466B (en) | Flame-retardant direct-current cable for rail transit and production process thereof | |
| CN201298389Y (en) | Halogen-free low-smoke flame-retardant waterproof cable | |
| CN205582573U (en) | Insulating fire resisting cable of magnesium oxide mineral substance | |
| CN114242307B (en) | Waterproof, fireproof and rat-proof composite cable | |
| CN102855984A (en) | Fireproof and flame-retarding shield signal cable | |
| CN205354735U (en) | Urban rail transit is with moving accuse composite cable | |
| CN216487472U (en) | High-electrical-performance rat-proof and termite-proof flame-retardant power cable | |
| CN106409396B (en) | A kind of flexible fire-proof cable and preparation method thereof | |
| CN116994809A (en) | B1-level completely waterproof high-fireproof electrified railway cable | |
| CN205318889U (en) | Urban rail transit is with moving accuse combined braided shielded flexible cable | |
| CN213025510U (en) | Waterproof fire-resistant medium-voltage crosslinked polyethylene cable for tunnel | |
| CN203150200U (en) | Environment-friendly high flame resistant fireproof control cable used for fire-fighting security system | |
| CN203055523U (en) | Low-smoke, halogen-free, waterproof and moisture-resistant cables | |
| CN205318897U (en) | Urban rail transit is with moving compound cable that blocks water of synthesizing of accuse | |
| CN205376141U (en) | Urban rail transit is with moving compound flexible cable that blocks water of synthesizing of accuse | |
| CN223513697U (en) | A high flame-retardant, environmentally friendly, lightweight medium-voltage fire-resistant power cable | |
| CN116994834B (en) | Preparation process of high-flame-retardance cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220201 |
|
| RJ01 | Rejection of invention patent application after publication |