CN214312707U

CN214312707U - Steel-cored aluminum strand with high tensile strength

Info

Publication number: CN214312707U
Application number: CN202120506966.8U
Authority: CN
Inventors: 窦国祥
Original assignee: Jiangsu Hongyun Cable Co ltd
Current assignee: Jiangsu Hongyun Cable Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-09-28
Anticipated expiration: 2031-03-10

Abstract

The utility model discloses a steel-cored aluminum strand wires that tensile strength is high relates to power transmission technical field, for solving the problem that current steel-cored aluminum strand wires wearability is poor, tensile strength is low. The utility model provides an aluminium conductors steel cable that tensile strength is high, includes the stranded conductor main part, the inside of stranded conductor main part is provided with conductor, insulating layer, fixed steel ring, waterproof ventilative layer, protective sheath, steel core, the externally mounted of steel core has a plurality of along annular evenly distributed's guide pin bushing, the thickness of guide pin bushing is two millimeters, the conductor is located the inside of guide pin bushing, the diameter of conductor is twenty millimeters, the insulating layer is located the outside of guide pin bushing, the thickness of insulating layer is five millimeters, fixed steel ring is located the outside of insulating layer, the thickness of fixed steel ring is fifteen millimeters, the width of fixed steel ring is thirty millimeters.

Description

Steel-cored aluminum strand with high tensile strength

Technical Field

The utility model relates to a power transmission technical field specifically is a steel-cored aluminum strand wires that tensile strength is high.

Background

The steel-cored aluminum strand is a reinforced wire formed by twisting a single-layer or multi-layer aluminum strand outside a galvanized steel core, the aluminum strand mainly plays a role in transmitting electric energy and is mainly applied to the industries of electric power and power transmission lines, and the steel-cored aluminum strand has the characteristics of simple structure, convenience in erection and maintenance, low line manufacturing cost, large transmission capacity, contribution to laying of special geographical conditions such as crossing rivers, valleys and the like, good electric conductivity, sufficient mechanical strength, large tensile strength, capability of enlarging the distance between towers and the like. Therefore, the method is widely applied to overhead power transmission and distribution lines of various voltage classes.

However, the aluminum stranded wire part of the existing steel-cored aluminum stranded wire is exposed outside, is easy to wear in the transportation process or spreading installation, and reduces the service life, and meanwhile, the steel-cored aluminum stranded wire is lack of support in the installation process so that part of the steel-cored aluminum stranded wire is drooped under the action of gravity, and is stretched, so that the steel-cored aluminum stranded wire with poor tensile property is broken, and therefore the existing requirements are not met, and the steel-cored aluminum stranded wire with high tensile strength is provided for the people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an aluminum conductor cable steel-reinforced that tensile strength is high to solve the problem that the aluminum conductor cable steel-reinforced that proposes among the above-mentioned background art is poor, tensile strength is low.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an aluminum conductor cable steel-reinforced that tensile strength is high, includes the stranded conductor main part, the inside of stranded conductor main part is provided with conductor, insulating layer, fixed steel ring, waterproof ventilative layer, protective sheath, steel core, the externally mounted of steel core has a plurality of along annular evenly distributed's conduction pin bushing, the thickness of conduction pin bushing is two millimeters, the conductor is located the inside of conduction pin bushing, the diameter of conductor is twenty millimeters, the insulating layer is located the outside of conduction pin bushing, the thickness of insulating layer is five millimeters, fixed steel ring is located the outside of insulating layer, the thickness of fixed steel ring is fifteen millimeters, the width of fixed steel ring is thirty millimeters.

Preferably, the waterproof breathable layer is located outside the fixed steel ring, and the thickness of the waterproof breathable layer is one point five millimeters.

Preferably, the protective sleeve is positioned outside the waterproof breathable layer, and the thickness of the protective sleeve is twenty millimeters.

Preferably, the diameter of said steel core is forty millimeters.

Preferably, a plurality of grooves which are uniformly distributed along the shape of a ring are formed in the outer portion of the steel core, and the grooves and the steel core are integrally formed.

Preferably, the guide sleeve is matched with the groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an outside on waterproof ventilative layer is provided with the protective sheath, and the protective sheath plays the guard action to the stranded conductor main part to reduce the injury that the friction brought to the stranded conductor main part. A plurality of grooves which are uniformly distributed along the ring shape are formed in the outer portion of the steel core, and the conduction sleeve is matched with the grooves, so that the gap between the conduction sleeve and the steel core is smaller, and the tensile resistance of the stranded wire main body is improved.

2. The utility model discloses a be provided with fixed steel ring in the outside of insulating layer, fixed steel ring plays the parcel nature to inside, so that be connected closely between stranded conductor and the steel core, cause the clearance to increase between stranded conductor and the steel core because of deformation when preventing that the stranded conductor main part from receiving external force, the outside of fixed steel ring is provided with waterproof ventilative layer, waterproof ventilative layer uses polytetrafluoroethylene to make, polytetrafluoroethylene has high temperature resistant, weather-resistant, waterproof, characteristics such as ventilative, thereby the heat that produces when making conductor transportation electric power can distribute.

3. The utility model discloses an inside central point in stranded conductor main part puts the department and is provided with the steel core, a plurality of conductors along annular evenly distributed are seted up to the steel core outside, the conductor is aluminium system material, have good electric conductivity because of aluminium, light in weight's characteristic, the conductor passes through the outside of transposition mode winding at the steel core, the outside of conductor is provided with the biography guide pin bushing, the conduction cover uses ultra high molecular weight polyethylene fiber to make, corrosion resistance has, wear resistance, electric conductivity, thereby the electric conductivity of conductor has been increased, loss when reducing power transmission, the outside of biography guide pin bushing is provided with the insulating layer, the insulating layer uses polyimide to make, polyimide has high temperature resistance, fire resistance, corrosion resistance and stronger insulating nature, thereby protection conductor and conduction cover, prevent that electric power from losing.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a partially enlarged view of the area a in fig. 1 according to the present invention;

fig. 3 is a side view of the internal structure of the present invention;

fig. 4 is a side view of the steel ring of the present invention.

In the figure: 1. a stranded wire main body; 2. a conductor; 3. a conductive sleeve; 4. an insulating layer; 5. fixing a steel ring; 6. a waterproof breathable layer; 7. a protective sleeve; 8. a groove; 9. and a steel core.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides an aluminum conductor cable steel reinforced that tensile strength is high, including stranded conductor main part 1, the inside of stranded conductor main part 1 is provided with conductor 2, insulating layer 4, fixed steel ring 5, waterproof ventilative layer 6, protective sheath 7, steel core 9, the externally mounted of steel core 9 has a plurality of conduction cover 3 along annular evenly distributed, the thickness of conduction cover 3 is two millimeters, conductor 2 is located the inside of conduction cover 3, the diameter of conductor 2 is twenty millimeters, insulating layer 4 is located the outside of conduction cover 3, the thickness of insulating layer 4 is five millimeters, fixed steel ring 5 is located the outside of insulating layer 4, the thickness of fixed steel ring 5 is fifteen millimeters, the width of fixed steel ring 5 is thirty millimeters, conductor 2 is aluminium system material, because of aluminium has good electric conductivity, light in weight's characteristic.

Further, waterproof ventilative layer 6 is located the outside of fixed steel ring 5, and waterproof ventilative layer 6's thickness is one bit five millimeters, and waterproof ventilative layer 6 uses polytetrafluoroethylene to make, and polytetrafluoroethylene has characteristics such as high temperature resistant, weather-proof, waterproof, ventilative to the heat that produces can give off when making conductor 2 transportation electric power.

Further, protective sheath 7 is located the outside of waterproof ventilative layer 6, and protective sheath 7's thickness is twenty millimeters, and protective sheath 7 plays the guard action to stranded conductor main part 1 to reduce the injury that friction pair stranded conductor main part 1 brought.

Further, the diameter of the steel core 9 is forty millimeters, and the steel core 9 improves the tensile strength of the stranded wire main body 1.

Further, a plurality of grooves 8 which are uniformly distributed along the ring shape are formed in the outer portion of the steel core 9, the grooves 8 and the steel core 9 are integrally formed, and objects can be placed in the grooves 8.

Further, the conducting sleeve 3 is matched with the groove 8, so that the gap between the conducting sleeve 3 and the steel core 9 is smaller, and the tensile strength of the stranded wire main body 1 is improved.

The working principle is as follows: when in use, the steel core 9 is arranged at the center of the inside of the stranded wire main body 1, the steel core 9 improves the tensile resistance of the stranded wire main body 1, the plurality of conductors 2 uniformly distributed along the ring shape are arranged outside the steel core 9, the conductors 2 are made of aluminum materials, the aluminum has the characteristics of good conductivity and light weight, the conductors 2 are wound outside the steel core 9 in a twisting mode, the transmission sleeve 3 is arranged outside the conductors 2, the transmission sleeve 3 is made of ultra-high molecular weight polyethylene fibers, and has corrosion resistance, wear resistance and conductivity, so that the conductivity of the conductors 2 is increased, the loss in power transmission is reduced, the insulating layer 4 is arranged outside the transmission sleeve 3, the insulating layer 4 is made of polyimide, the polyimide has high temperature resistance, flame retardance, corrosion resistance and strong insulativity, thereby protecting the conductors 2 and the transmission sleeve 3 and preventing power loss, the fixing steel ring 5 is arranged outside the insulating layer 4, fixed steel ring 5 plays the parcel nature to inside, so that be connected closely between stranded conductor 2 and the steel core 9, cause clearance increase between stranded conductor 2 and the steel core 9 because of deformation when preventing stranded conductor main part 1 from receiving external force, the outside of fixed steel ring 5 is provided with waterproof ventilative layer 6, waterproof ventilative layer 6 uses polytetrafluoroethylene to make, polytetrafluoroethylene has high temperature resistant, weather-proof, it is waterproof, characteristics such as ventilative, thereby make the heat that produces when conductor 2 transports electric power can distribute, waterproof ventilative layer 6's outside is provided with protective sheath 7, protective sheath 7 plays the guard action to stranded conductor main part 1, in order to reduce the injury that friction brought to stranded conductor main part 1. A plurality of grooves 8 which are uniformly distributed along the ring shape are formed in the outer portion of the steel core 9, and the conduction sleeve 3 is matched with the grooves 8, so that the gap between the conduction sleeve 3 and the steel core 9 is smaller, and the tensile resistance of the stranded wire main body 1 is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an aluminum conductor cable steel reinforced that tensile strength is high, includes stranded conductor main part (1), its characterized in that: the novel wire twisting machine is characterized in that a conductor (2), an insulating layer (4), a fixed steel ring (5), a waterproof and breathable layer (6), a protective sleeve (7) and a steel core (9) are arranged inside the wire twisting main body (1), a plurality of guide sleeves (3) are uniformly distributed along the annular shape are arranged outside the steel core (9), the thickness of each guide sleeve (3) is two millimeters, the conductor (2) is located inside each guide sleeve (3), the diameter of the conductor (2) is twenty millimeters, the insulating layer (4) is located outside each guide sleeve (3), the thickness of the insulating layer (4) is five millimeters, the fixed steel ring (5) is located outside each insulating layer (4), the thickness of the fixed steel ring (5) is fifteen millimeters, and the width of the fixed steel ring (5) is thirty millimeters.

2. The aluminum conductor steel reinforced with high tensile strength as recited in claim 1, wherein: the waterproof breathable layer (6) is located on the outer portion of the fixed steel ring (5), and the thickness of the waterproof breathable layer (6) is one point and five millimeters.

3. The aluminum conductor steel reinforced with high tensile strength as recited in claim 1, wherein: the protective sleeve (7) is located outside the waterproof breathable layer (6), and the thickness of the protective sleeve (7) is twenty millimeters.

4. The aluminum conductor steel reinforced with high tensile strength as recited in claim 1, wherein: the diameter of the steel core (9) is forty millimeters.

5. The aluminum conductor steel reinforced with high tensile strength as recited in claim 4, wherein: a plurality of grooves (8) which are uniformly distributed along the shape of a ring are formed in the outer portion of the steel core (9), and the grooves (8) and the steel core (9) are integrally formed.

6. The aluminum conductor steel reinforced with high tensile strength as recited in claim 5, wherein: the guide sleeve (3) is matched with the groove (8).