CN114496389B - High-conductivity aluminum stranded wire for extra-high voltage transmission and preparation method thereof - Google Patents
High-conductivity aluminum stranded wire for extra-high voltage transmission and preparation method thereof Download PDFInfo
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- CN114496389B CN114496389B CN202210180573.1A CN202210180573A CN114496389B CN 114496389 B CN114496389 B CN 114496389B CN 202210180573 A CN202210180573 A CN 202210180573A CN 114496389 B CN114496389 B CN 114496389B
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 158
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 158
- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title abstract description 7
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000004411 aluminium Substances 0.000 claims description 24
- 239000002356 single layer Substances 0.000 claims description 18
- 239000010410 layer Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000005728 strengthening Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 14
- 230000001070 adhesive effect Effects 0.000 description 14
- 230000001681 protective effect Effects 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- H01B9/008—Power cables for overhead application
-
- 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
-
- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- 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
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
-
- 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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Non-Insulated Conductors (AREA)
Abstract
The invention discloses a high-conductivity aluminum stranded wire for ultra-high voltage transmission and a preparation method thereof, wherein the high-conductivity aluminum stranded wire comprises an aluminum core and an elastic buffer sleeve, the aluminum core is fixedly arranged in the middle of the inner side of the elastic buffer sleeve, a central aluminum wire is arranged in the middle of the inner side of the aluminum core, an aluminum wire sleeve shell is arranged on the outer circumference of the elastic buffer sleeve, an outer hinged aluminum wire is arranged on the inner side of the circumference of the aluminum wire sleeve, an outer wrapping sleeve is arranged on the outer circumference of the aluminum wire sleeve, a reinforcing fixing pipe is arranged on the inner side of the circumference of the outer wrapping sleeve, a wear-resistant outer shell is arranged on the outer circumference of the outer wrapping sleeve, and a locking rubber ring sleeve is arranged on the circumference of the wear-resistant outer shell. The high-conductivity aluminum stranded wire for ultra-high voltage transmission has the technical effects of high-strength connection and fixation and preventing pulling and separation, and the aluminum stranded wire manufactured by the process is easy to bend, small in bending radius, free from deformation after being bent into a small bend, free from sleeve, smooth and round in surface and stable in structure.
Description
Technical Field
The invention relates to the technical field of power transmission, in particular to a high-conductivity aluminum stranded wire for ultra-high voltage transmission and a preparation method thereof.
Background
The steel-cored aluminum stranded wire is widely applied to overhead transmission lines, the traditional steel-cored aluminum stranded wire is formed by stranding aluminum wires and steel wires, the steel core is arranged inside the steel-cored aluminum stranded wire, the aluminum wires are wound around the steel core outside the steel-cored aluminum stranded wire in a stranding mode, the steel core mainly plays a role in increasing strength, and the aluminum stranded wire mainly plays a role in transmitting electric energy.
At present, when the existing high-conductivity aluminum stranded wire for extra-high voltage transmission is used, the integral strength is not very firm, so that when the aluminum stranded wire is pulled and used, the separation condition is easy to generate inside, and the strength is not very high, so that the aluminum stranded wire is not very safe in later use.
Disclosure of Invention
The invention discloses a high-conductivity aluminum stranded wire for extra-high voltage transmission and a preparation method thereof, and aims to solve the technical problems that the whole strength is not very firm when the existing high-conductivity aluminum stranded wire for extra-high voltage transmission is used, so that the inside is easy to separate when the aluminum stranded wire is pulled for use, the strength is not very high, and the aluminum stranded wire is not very safe when the aluminum stranded wire is used in a later period.
The first scheme of the invention provides a high-conductivity aluminum stranded wire for ultra-high voltage transmission, which comprises an aluminum core and an elastic buffer sleeve, wherein the aluminum core is fixedly arranged in the middle of the inside of the elastic buffer sleeve, a central aluminum wire is arranged in the middle of the inside of the aluminum core, an aluminum wire sleeve shell is arranged on the outer circumference of the elastic buffer sleeve, an outer hinged aluminum wire is arranged on the inner circumference of the aluminum wire sleeve, an outer wrapping sleeve is arranged on the outer circumference of the aluminum wire sleeve, a reinforcing fixing pipe is arranged on the inner circumference of the outer wrapping sleeve, a wear-resistant outer shell sleeve is arranged on the outer circumference of the outer wrapping sleeve, and a locking rubber ring sleeve is arranged on the circumference of the wear-resistant outer shell sleeve.
Through being provided with the fixed tube structure of strengthening for be convenient for strengthen and fix outside parcel cover and use, be difficult for droing the separation in drawing like this, aluminum wire cover shell is because of the outside articulated aluminum wire of circumference inboard in addition, thereby more stable when strengthening.
In a preferred scheme, strengthen the fixed pipe and include elasticity rubber tube, protection overcoat and strengthen the interior pole, be provided with in the middle of the inside of elasticity rubber tube and strengthen the interior pole, be provided with the protection overcoat on the outside a week of elasticity rubber tube, the protection overcoat is installed and is connected on outside parcel cover.
Through being provided with the fixed tube structure of strengthening to be convenient for strengthen fixed use.
In a preferred scheme, the outside parcel cover includes adhesion overcoat, inside cover chamber, fixed pipe box chamber and adhesion endotheca, be provided with inside cover chamber in the middle of the inside of adhesion endotheca, be provided with the adhesion overcoat on the outside a week of adhesion endotheca, the circumference inboard of adhesion overcoat is provided with fixed pipe box chamber, the adhesion endotheca passes through inside cover chamber installation and connects on the aluminium wire cover shell, the adhesion overcoat installation is connected on wear-resisting shell.
Through being provided with outside parcel cover structure, be convenient for wrap up like this and fix for it is more stable to fix.
In a preferred scheme, wear-resisting shell cover is including parcel appearance chamber shell, ring channel and parcel internal groove, be provided with the ring channel on the circumference outside of parcel appearance chamber shell, the inside of parcel appearance chamber shell is provided with parcel internal groove, parcel appearance chamber shell passes through parcel internal groove erection joint and wraps up the cover in the outside.
The wear-resistant outer shell sleeve structure is arranged, so that the protection is convenient to wrap.
In a preferred scheme, the reinforcing fixing pipe is adhered and sleeved on the inner side of the circumference of the outer wrapping sleeve, and twelve reinforcing fixing pipes are arranged in total.
Through being provided with the fixed tube structure of strengthening, be convenient for strengthen like this and fix outside parcel cover and use.
In a preferred embodiment, twenty outer twisted aluminum wires are provided in total, and the outer twisted aluminum wires are symmetrically disposed on the circumferential inner side of the aluminum wire casing.
Through being provided with outer articulated aluminium wire structure to be convenient for stabilize and strengthen and fix aluminium wire cover shell and use.
The second scheme of the invention provides a preparation method of the high-conductivity aluminum stranded wire for ultra-high voltage transmission, which comprises the following steps:
s1, obtaining a first wire coil wound with an aluminum core and a second wire coil wound with a central aluminum wire, placing the first wire coil on a paying-off machine of a fork-type stranded wire machine set, and placing the second wire coil on a wire carrying frame of the fork-type stranded wire machine set;
s2, leading out the central aluminum wire from a second wire coil on the wire bearing frame, sequentially leading the central aluminum wire into a wire collecting machine through a shaft tube of the wire bearing frame, a wire doubling die and a traction machine, leading out an aluminum core from a first wire coil on the wire releasing machine, respectively penetrating through wire holes uniformly distributed on the outer circumference of a wire dividing plate, leading the aluminum core into the wire doubling die from an inlet of the wire doubling die, merging the wire doubling die with the central aluminum wire in the wire doubling die, and leading the aluminum core into the wire collecting machine through the traction machine;
s3, driving a shaft tube of a wire supporting frame to rotate by using a motor, twisting the combined aluminum core in a doubling die to wrap the outer side of a central aluminum wire, then sleeving an elastic buffer sleeve and an aluminum wire sleeve shell to form a single-layer aluminum stranded wire, and driving a traction machine to pull the single-layer aluminum stranded wire to enter a wire winding machine to wind the single-layer aluminum stranded wire on a wire coil by using the motor to obtain a single-layer aluminum stranded wire disc;
s4, placing the single-layer aluminum stranded wire disc obtained in the previous step on a paying-off machine, repeating the manufacturing process to obtain an outer hinged aluminum wire with one layer added by taking the single-layer aluminum stranded wire obtained in the previous step as a core wire, and obtaining an aluminum stranded wire disc with one layer added after the aluminum stranded wire sleeve is sleeved;
s5, placing the aluminum stranded wire disc obtained in the previous step on a paying-off machine, and repeating the manufacturing process to manufacture a reinforced fixing pipe with one layer by taking the aluminum stranded wire obtained in the previous step as a core wire, and sequentially penetrating through an outer wrapping sleeve, a wear-resistant outer shell sleeve and a locking rubber ring sleeve.
In a preferred scheme, in the manufacturing process of the aluminum stranded wire, when the outermost layer reinforcing fixed pipe is stranded, an angle between the aluminum stranded wire led out from the wire hole on the outer circumference of the branching plate and then led into the inlet of the doubling die and a core wire led out from the shaft pipe and then led into the inlet of the doubling die is 45-63 degrees, and when other layers of aluminum stranded wires and outer hinging aluminum stranded wires are stranded, an angle between the aluminum stranded wire led out from the wire hole on the outer circumference of the branching plate and then led into the inlet of the doubling die and the core wire led out from the shaft pipe and then led out into the inlet of the doubling die is 35-50 degrees.
In summary, the invention has the following beneficial effects:
the high-conductivity aluminum stranded wire for ultra-high voltage transmission has the technical effects of high-strength connection and fixation and preventing pulling and separation, and the aluminum stranded wire manufactured by the process is easy to bend, small in bending radius, free from deformation and sleeve discharge after being bent into small bending, smooth and round in surface, stable in structure and suitable for being used as an aluminum stranded wire for connection between electrical contacts of high-voltage power distribution equipment in a high-voltage transformer substation and a high-voltage converter station.
Drawings
Fig. 1 is a schematic perspective view of a high-conductivity aluminum stranded wire for ultra-high voltage transmission.
Fig. 2 is a schematic diagram of a reinforced fixing tube of a high-conductivity aluminum stranded wire for ultra-high voltage transmission.
Fig. 3 is a schematic diagram of the structure of an outer wrapping sleeve of a high-conductivity aluminum stranded wire for ultra-high voltage transmission.
Fig. 4 is a schematic diagram of a wear-resistant outer shell of a high-conductivity aluminum stranded wire for ultra-high voltage transmission.
In the accompanying drawings: 1. a central aluminum wire; 2. an aluminum core; 3. an aluminum wire is hinged outside; 4. an aluminum wire jacket; 5. an outer wrap; 51. adhering the outer sleeve; 52. an internal jacket cavity; 53. fixing the pipe sleeve cavity; 54. an inner adhesive sleeve; 6. locking the rubber ring sleeve; 7. a wear resistant outer shell; 71. wrapping the cavity shell; 72. an annular groove; 73. wrapping the inner trough; 8. reinforcing the fixed pipe; 81. an elastic rubber tube; 82. a protective outer jacket; 83. reinforcing the inner rod; 9. an elastic buffer sleeve.
Description of the embodiments
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.
Examples
Referring to fig. 1-4, a high conductivity aluminum stranded wire for extra-high voltage transmission, including aluminium core 2 and elasticity buffer cover 9, aluminium core 2 installs and fixes on the inside intermediate position of elasticity buffer cover 9, be provided with central aluminium wire 1 in the middle of the inboard of aluminium core 2, be provided with aluminium wire cover shell 4 in the outside a week of elasticity buffer cover 9, the circumference inboard of aluminium wire cover 4 is provided with outer hinge aluminium wire 3, be provided with outside parcel cover 5 in the outside a week of aluminium wire cover 4, the circumference inboard of outside parcel cover 5 is provided with reinforcing fixed pipe 8, be provided with wear-resisting shell 7 in the outside a week of outside parcel cover 5, be provided with locking gum ring cover 6 on the week side of wear-resisting shell 7, when using, aluminium core 2 and central aluminium wire 1 are convenient for buffering parcel because of elasticity buffer cover 9, thereby effectively wrap up because of outside hinge aluminium wire cover 4, moreover aluminium wire cover 4 is convenient for reinforcing because of outside hinge aluminium wire 3, the outside of outside parcel cover 4 can be fixed outside 5 and make the outside firm parcel 5 and prevent that wear-resisting shell 5 from making the outside firm parcel from taking place, thereby the wear-resisting shell 5 from having avoided the wear-resisting shell to take off the fixed outside of the circumference of the 5, thereby the wear-resisting shell is more convenient for the side is firm, the wear-resisting protector is avoided the side 5 to take the side is more to be convenient for the firm to take out the outer side, the wear-resisting shell is more 5, so the wear-resisting protector is more has the firm to be avoided the side is more 5, so is convenient to be firmly to be used to be firmly in the outside 5.
Referring to fig. 1 and 2, in a preferred embodiment, the reinforcing fixing tube 8 includes an elastic rubber tube 81, a protective outer sleeve 82 and a reinforcing inner rod 83, the reinforcing inner rod 83 is arranged in the middle of the inside of the elastic rubber tube 81, the protective outer sleeve 82 is arranged on the outer circumference of the elastic rubber tube 81, the protective outer sleeve 82 is installed and connected on the outer wrapping sleeve 5, the protective outer sleeve 82 of the reinforcing fixing tube 8 is adhered and connected on the outer wrapping sleeve 5, the protective outer sleeve 82 is convenient to install and fix, the protective outer sleeve 82 is convenient to stably place, the protective outer sleeve 82 is convenient to stably wrap the reinforcing inner rod 83 due to the elastic rubber tube 81, the reinforcing inner rod 83 is more stable in fixing, the integral strength of the reinforcing inner rod 83 is high, the reinforcing inner rod is more firm in limiting fixing, the elastic rubber tube 81 is convenient to extrude, the protective outer sleeve 82 is convenient to collide with the outer wrapping sleeve 5, the strength of the outer wrapping sleeve 5 is more efficient in wrapping, the situation that pulling and the outer wrapping sleeve 5 is avoided, the use strength is more firm, and the safety and convenience are improved when the device is erected.
Referring to fig. 1 and 3, in a preferred embodiment, the outer wrap 5 includes an adhesive outer jacket 51, an inner jacket cavity 52, a fixing jacket cavity 53 and an adhesive inner jacket 54, the inner jacket cavity 52 is provided in the middle of the inside of the adhesive inner jacket 54, the adhesive outer jacket 51 is provided on one circumference of the outside of the adhesive inner jacket 54, the fixing jacket cavity 53 is provided on the inner side of the circumference of the adhesive outer jacket 51, the adhesive inner jacket 54 is mounted and connected on the aluminum wire jacket 4 through the inner jacket cavity 52, the adhesive inner jacket 54 of the outer wrap 5 is mounted and connected on the aluminum wire jacket 4 through the area of the inner jacket cavity 52, so that the adhesive inner jacket 54 is effectively fixed due to the adhesive outer jacket 51 of one circumference of the outside, so that the adhesive outer jacket 54 is conveniently fixed on the wear-resistant outer jacket 7, so that the wear-resistant outer jacket 7 plays a protective role, and the adhesive outer jacket 51 is effectively fixed on the reinforcing and fixing tube 8 due to the fixing jacket 53 of the inner side, so that the adhesive outer jacket 51 is more stable and firm when fixed due to the reinforcing and fixing tube 8.
Referring to fig. 1 and 4, in a preferred embodiment, the wear-resistant outer shell 7 includes a wrapping cavity shell 71, an annular groove 72 and a wrapping inner groove 73, the annular groove 72 is disposed on the outer side of the circumference of the wrapping cavity shell 71, the wrapping inner groove 73 is disposed inside the wrapping cavity shell 71, the wrapping cavity shell 71 is mounted and connected on the outer wrapping sleeve 5 through the wrapping inner groove 73, the wrapping cavity shell 71 of the wear-resistant outer shell 7 is mounted and connected on the outer wrapping sleeve 5 through the wrapping inner groove 73, the wrapping cavity shell 71 is convenient for protecting the outer wrapping sleeve 5, the wrapping cavity shell 71 is convenient for limiting, locking and fixing the use due to the annular groove 72 on the outer side, and the locking rubber ring sleeve 6 is convenient for limiting, locking and fixing the wrapping cavity shell 71 to be adhered and wrapped more stably.
Referring to fig. 1, in a preferred embodiment, the reinforcing fixing pipes 8 are adhesively sleeved on the circumferential inner side of the outer wrap 5, and twelve reinforcing fixing pipes 8 are provided, so that the reinforcing fixing pipes 8 are provided for twelve reinforcing fixing the outer wrap 5 for use.
Referring to fig. 1, in a preferred embodiment, twenty outer hinge aluminum wires 3 are provided in total, and the outer hinge aluminum wires 3 are symmetrically disposed on the inner side of the circumference of the aluminum wire casing 4, and since twelve outer hinge aluminum wires 3 are symmetrically disposed on the inner side of the circumference of the aluminum wire casing 4, the aluminum wire casing 4 is convenient for gripping and wrapping, thus avoiding pulling off and separating, and making it safer for later erection.
Working principle: when using, aluminium core 2 and central aluminium wire 1 are convenient for cushion the parcel because of elasticity buffer cover 9 to effectively protect aluminium core 2 and central aluminium wire 1, elasticity buffer cover 9 is because of the aluminium wire cover shell 4 of week side, effective parcel like this, and aluminium wire cover shell 4 is convenient for strengthen because of outer articulated aluminium wire 3 moreover, the circumference outside of aluminium wire cover shell 4 is because of outside parcel cover 5 can effectively wrap up fixedly, outside parcel cover 5 is in the parcel, outside parcel cover 5 is because of the inboard fixed pipe 8 of strengthening of circumference, be convenient for strengthen like this and fix for outside parcel cover 5 parcel is more stable firm, thereby avoid appearing pulling the condition that breaks away from, make the use intensity more firm, safer and more convenient when erect like this, outside parcel cover 5 plays the protection because of the parcel of wear-resisting shell 7, thereby avoid friction damage, wear-resisting shell 7 is because of the locking gum ring cover 6 of week side, be convenient for strengthen like this and fix, avoid wear-resisting shell 7's adhesion parcel to drop.
Examples
A preparation method of a high-conductivity aluminum stranded wire for ultra-high voltage transmission comprises the following steps:
s1, a first wire coil wound on an aluminum core 2 and a second wire coil wound on a central aluminum wire 1 are obtained, the first wire coil is placed on a paying-off machine of a fork-type stranding machine set, and the second wire coil is placed on a wire supporting frame of the fork-type stranding machine set;
s2, leading out the central aluminum wire 1 from a second wire coil on the wire support frame, sequentially leading the central aluminum wire 1 into a wire collecting machine through a shaft tube of the wire support frame, a wire doubling die and a traction machine, leading out an aluminum core 2 from a first wire coil on the wire releasing machine, respectively penetrating through wire holes uniformly distributed on the outer circumference of a wire dividing plate, leading the aluminum core 2 into the wire doubling die from an inlet of the wire doubling die, merging the aluminum wire 1 with the central aluminum wire 1 in the wire doubling die, and leading the aluminum core to enter the wire collecting machine through the traction machine;
s3, driving a shaft tube of a wire bearing frame to rotate by using a motor, stranding the combined aluminum core 2 in a doubling die to wrap the outer side of the central aluminum wire 1, then sleeving an elastic buffer sleeve 9 and an aluminum wire sleeve shell 4 to form a single-layer aluminum stranded wire, and driving a traction machine to pull the single-layer aluminum stranded wire to enter a wire collecting machine to wind the single-layer aluminum stranded wire on a wire coil by using the motor to obtain a single-layer aluminum stranded wire disc;
s4, placing the single-layer aluminum stranded wire disc obtained in the previous step on a paying-off machine, repeating the manufacturing process to obtain an outer hinged aluminum wire 3 with one layer added by taking the single-layer aluminum stranded wire obtained in the previous step as a core wire, and obtaining an aluminum stranded wire disc with one layer added after the aluminum wire sleeve shell 4 is sleeved;
s5, placing the aluminum stranded wire disc obtained in the previous step on a paying-off machine, and repeating the manufacturing process to obtain a reinforced fixing pipe 8 with a layer of reinforced fixing pipe by taking the aluminum stranded wire obtained in the previous step as a core wire, and sequentially penetrating and sleeving an outer wrapping sleeve 5, a wear-resistant outer shell sleeve 7 and a locking rubber ring sleeve 6;
specifically, in the process of manufacturing the aluminum stranded wire, when the outermost reinforcing fixing pipe 8 is stranded, the angle between the aluminum stranded wire led out from the wire hole in the outer circumference of the branching plate and led out from the shaft pipe into the inlet of the doubling mold is 45 ° to 63 °, and when the other layers of aluminum core 2 and the outer stranded aluminum conducting wire 3 are stranded, the angle between the aluminum stranded wire led out from the wire hole in the outer circumference of the branching plate and led out from the shaft pipe into the inlet of the doubling mold is 35 ° to 50 °.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. The substitutions may be partial structures, devices, or method steps, or may be a complete solution. The technical proposal and the invention concept are equivalent to or changed in accordance with the invention, and the invention is covered in the protection scope of the invention.
Claims (5)
1. The utility model provides a high conductivity aluminum stranded wire for extra-high voltage transmission, includes aluminium core (2) and elasticity buffer sleeve (9), its characterized in that, aluminium core (2) are installed and are fixed on the inside intermediate position of elasticity buffer sleeve (9), be provided with central aluminium wire (1) in the middle of the inboard of aluminium core (2), be provided with aluminium wire cover shell (4) on the outside a week of elasticity buffer sleeve (9), the circumference inboard of aluminium wire cover shell (4) is provided with outer articulated aluminium wire (3), be provided with outside parcel cover (5) on the outside a week of aluminium wire cover shell (4), outside parcel cover (5) are including adhesion overcoat (51), inside sleeve (52), fixed sleeve (53) and adhesion inner sleeve (54), be provided with inside sleeve (52) in the inside intermediate position of adhesion inner sleeve (54), be provided with adhesion overcoat (51) on the outside a week of adhesion inner sleeve (54), the circumference inboard of adhesion outer sleeve (51) is provided with fixed chamber (53), adhesion inner sleeve (54) are installed on aluminium wire (4) through inside sleeve (52) and are installed on the outside (8) and are connected, the outside is connected on the outside (8), strengthen fixed pipe (8) including elasticity rubber tube (81), protection overcoat (82) and strengthening interior pole (83), be provided with in the middle of the inside of elasticity rubber tube (81) and strengthen interior pole (83), be provided with protection overcoat (82) on the outside a week of elasticity rubber tube (81), protection overcoat (82) install and connect on outside parcel cover (5), be provided with wear-resisting shell (7) on the outside a week of outside parcel cover (5), wear-resisting shell (7) are including parcel appearance chamber shell (71), ring channel (72) and parcel internal groove (73), be provided with ring channel (72) on the circumference outside of parcel appearance chamber shell (71), the inside of parcel appearance chamber shell (71) is provided with parcel internal groove (73), parcel appearance chamber shell (71) are through parcel internal groove (73) erection joint on outside parcel cover (5), be provided with on the week side of wear-resisting shell (7) and lock gum ring cover (6).
2. The high-conductivity aluminum stranded wire for ultra-high voltage transmission according to claim 1, wherein the reinforcing fixing tube (8) is adhered and sleeved on the inner side of the circumference of the outer wrapping sleeve (5), and twelve reinforcing fixing tubes (8) are arranged in total.
3. The high-conductivity aluminum stranded wire for extra-high voltage transmission according to claim 1, wherein twenty outer hinged aluminum wires (3) are provided in total, and the outer hinged aluminum wires (3) are symmetrically arranged on the inner side of the circumference of the aluminum wire casing (4).
4. A method for preparing a high-conductivity aluminum stranded wire for ultra-high voltage transmission, based on the high-conductivity aluminum stranded wire for ultra-high voltage transmission as claimed in any one of claims 1 to 3, comprising the steps of:
s1, a first wire coil wound on an aluminum core (2) and a second wire coil wound on a central aluminum wire (1) are obtained, the first wire coil is placed on a paying-off machine of a fork-type stranding machine set, and the second wire coil is placed on a wire supporting frame of the fork-type stranding machine set;
s2, leading out a central aluminum wire (1) from a second wire coil on a wire bearing frame, sequentially leading the central aluminum wire into a wire collecting machine through a shaft tube of the wire bearing frame, a wire doubling die and a traction machine, leading out an aluminum core (2) from a first wire coil on a wire paying-off machine, respectively penetrating through wire holes uniformly distributed on the outer circumference of a wire dividing plate, leading the aluminum core into the wire doubling die from an inlet of the wire doubling die, merging the aluminum wire with the central aluminum wire (1) in the wire doubling die, and leading the aluminum core into the wire collecting machine through the traction machine;
s3, driving a shaft tube of a wire bearing frame to rotate by using a motor, twisting the combined aluminum core (2) in a doubling die to wrap the outer side of a central aluminum wire (1), then sleeving an elastic buffer sleeve (9) and an aluminum wire sleeve shell (4) to form a single-layer aluminum stranded wire, and driving a traction machine to pull the single-layer aluminum stranded wire to enter a wire winding machine to wind the single-layer aluminum stranded wire on a wire coil by using the motor to obtain a single-layer aluminum stranded wire disc;
s4, placing the single-layer aluminum stranded wire disc obtained in the previous step on a paying-off machine, repeating the manufacturing process to obtain an outer hinged aluminum wire (3) with one layer added by taking the single-layer aluminum stranded wire obtained in the previous step as a core wire, and sleeving an aluminum wire sleeve (4) through the outer hinged aluminum wire disc to obtain an aluminum stranded wire disc with one layer added;
s5, placing the aluminum stranded wire disc obtained in the previous step on a paying-off machine, and repeating the manufacturing process to manufacture a reinforced fixing pipe (8) with one layer added by taking the aluminum stranded wire obtained in the previous step as a core wire, and sequentially sleeving an outer wrapping sleeve (5), a wear-resistant outer shell sleeve (7) and a locking rubber ring sleeve (6).
5. The method for manufacturing a high-conductivity aluminum twisted wire for extra-high voltage transmission according to claim 4, wherein an angle between an aluminum twisted wire led out from a wire hole in an outer circumference of a branching plate and led out from a shaft pipe and led into a wire inlet of a doubling mold is 45 ° to 63 ° when the outermost reinforcing fixed pipe (8) is twisted, and an angle between an aluminum twisted wire led out from a wire hole in an outer circumference of a branching plate and led out from a shaft pipe and led into a wire inlet of a doubling mold is 35 ° to 50 ° when other layers of aluminum core (2) and outer twisted aluminum wire (3) are twisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210180573.1A CN114496389B (en) | 2022-02-25 | 2022-02-25 | High-conductivity aluminum stranded wire for extra-high voltage transmission and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210180573.1A CN114496389B (en) | 2022-02-25 | 2022-02-25 | High-conductivity aluminum stranded wire for extra-high voltage transmission and preparation method thereof |
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| Publication Number | Publication Date |
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| CN114496389A CN114496389A (en) | 2022-05-13 |
| CN114496389B true CN114496389B (en) | 2024-01-05 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783213A (en) * | 2010-02-10 | 2010-07-21 | 铁岭大元电缆有限公司 | Method for manufacturing small-pitch aluminum stranded wire |
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| CN111180131A (en) * | 2018-11-13 | 2020-05-19 | 大连慧航科技发展有限公司 | Heat-resisting overhead stranded wire for power transmission line |
| CN212365581U (en) * | 2020-04-18 | 2021-01-15 | 无锡市光环电缆有限公司 | Multi-core control cable |
| CN217157808U (en) * | 2022-02-25 | 2022-08-09 | 江苏南瑞银龙电缆有限公司 | High-conductivity aluminum stranded wire for extra-high voltage power transmission |
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2022
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| KR20110069931A (en) * | 2009-12-18 | 2011-06-24 | 현대중공업 주식회사 | Cable for ship |
| CN101783213A (en) * | 2010-02-10 | 2010-07-21 | 铁岭大元电缆有限公司 | Method for manufacturing small-pitch aluminum stranded wire |
| CN203760146U (en) * | 2014-03-19 | 2014-08-06 | 安徽神州缆业集团有限公司 | High strength flexible shielding drag chain cable |
| CN104269225A (en) * | 2014-08-29 | 2015-01-07 | 四川顶锐液压设备制造有限公司 | Tubular wire-stranding machine for producing power supply cable of hydraulic pump station |
| CN205376149U (en) * | 2016-03-02 | 2016-07-06 | 成都黄石双峰电缆有限公司 | Energy -conserving steel core high conductibity aluminum stranded conductor |
| CN206849541U (en) * | 2017-05-23 | 2018-01-05 | 泉州市歌天电子商务有限公司 | A kind of anti-wear communication combination cable of tension |
| CN208315250U (en) * | 2018-06-06 | 2019-01-01 | 云南巨力电缆股份有限公司 | A kind of anti-corrosion type high strength steel core aluminum stranded wire |
| CN111180131A (en) * | 2018-11-13 | 2020-05-19 | 大连慧航科技发展有限公司 | Heat-resisting overhead stranded wire for power transmission line |
| CN212365581U (en) * | 2020-04-18 | 2021-01-15 | 无锡市光环电缆有限公司 | Multi-core control cable |
| CN217157808U (en) * | 2022-02-25 | 2022-08-09 | 江苏南瑞银龙电缆有限公司 | High-conductivity aluminum stranded wire for extra-high voltage power transmission |
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| CN114496389A (en) | 2022-05-13 |
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