CN108963872B - Multifunctional wire lifter compatible with carbon fiber wires - Google Patents
Multifunctional wire lifter compatible with carbon fiber wires Download PDFInfo
- Publication number
- CN108963872B CN108963872B CN201811060334.2A CN201811060334A CN108963872B CN 108963872 B CN108963872 B CN 108963872B CN 201811060334 A CN201811060334 A CN 201811060334A CN 108963872 B CN108963872 B CN 108963872B
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- wire
- hook
- carbon fiber
- lifter
- hooks
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 40
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 40
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 230000001681 protective effect Effects 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 2
- 239000002131 composite material Substances 0.000 abstract description 17
- 239000012212 insulator Substances 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Load-Engaging Elements For Cranes (AREA)
- Inorganic Fibers (AREA)
Abstract
The invention discloses a multifunctional wire lifter compatible with carbon fiber wires, which is formed by mirror symmetry of the middle wire of a beam rod; at the center line of the beam rod, suspension holes are respectively arranged at the top and the bottom; the two side beam shoulders are respectively provided with a wire slot at the top and a hook hole at the bottom for connecting the hooks. The invention can be combined into a four-split, six-split and eight-split wire lifter, the U-shaped groove-shaped protecting hooks are arranged on the beam rod and the hooks, the protection of the carbon fiber composite wires is achieved, the carbon fiber composite wires are mutually embedded with the wire grooves and the hooks through the U-shaped grooves at the bottoms of the carbon fiber composite wires, and the carbon fiber composite wires are fixed by combining a plurality of screws. The invention has the advantages of simple structure, low cost, convenient carrying, convenient installation and disassembly, selective combined use, high operation efficiency, reduced operation cost, convenient live replacement of the corresponding line insulator string on the premise of ensuring that the wire is not damaged, filling of the blank of the universal wire lifter in the live working of the carbon fiber wire, and strong practicability and wide applicability.
Description
Technical Field
The invention relates to a wire lifter, in particular to a multifunctional wire lifter compatible with carbon fiber wires.
Background
With the continuous increase of the power demand of China, a plurality of power lines face the pressure of capacity increase.
One of the more economical ways of increasing the capacity of the circuit is to replace only the wires by the original towers. The precondition of using the original tower is that the load of the replaced wire cannot exceed the design condition of the original tower. For this reason, the new replacement wire cannot generally use a common steel-cored aluminum stranded wire, but a carbon fiber composite wire with a completely new structure is required.
Compared with the conventional wire, the carbon fiber composite wire has a series of advantages of light weight, high tensile strength, good heat resistance, small thermal expansion coefficient, high Wen Huchui, high conductivity, low wire loss, large current-carrying capacity, good corrosion resistance, difficult icing and the like.
However, carbon fiber wires also have some drawbacks: the carbon fiber wire core rod has poor bending resistance and torsion resistance, low shearing strength and easy bursting, the outer layer aluminum wire is made of soft aluminum material, is extremely easy to damage due to collision and friction, cannot identify damage caused in construction by naked eyes, and is easy to cause broken wire accidents; therefore, the operations such as bending, twisting, colliding, rubbing and the like on the carbon fiber wires are avoided during construction and live working.
The application of the carbon fiber wires provides new challenges for live working, and live replacement of the suspension insulator string is one of common working modes of live working of a power transmission line. The live working carry line instrument by carry line ware, lead screw, insulating pull rod and fixture combination form, because of the bending resistance of carbon fiber wire plug, torsion resistance is relatively poor, if carry line ware in carrying line instrument with current steel core aluminium stranded conductor is applied on the carbon fiber wire, has the potential safety hazard of damage wire, because of inside the aluminium hank, should not find, and the naked eye can't discern.
At present, the development of the carbon fiber conductor live working tool is basically in an undeveloped stage; although there are a large number of carbon fiber conductor transmission lines in China, the reference is very few in the research and experiment stage in the aspect of live working wire lifters.
Therefore, along with the continuous popularization and application of the carbon fiber wire, improvement on the wire lifter in the existing wire lifter is urgently needed, and the four-split, six-split and eight-split universal wire lifter suitable for the carbon fiber wire and the steel-cored aluminum stranded wire is developed, so that the corresponding wire insulator string can be conveniently replaced in a charged manner on the premise of ensuring that the wire is not damaged, and the protection of the wire in wire lifting construction and live working is enhanced.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide the multifunctional wire lifter which is high in combination and compatibility and can effectively protect the carbon fiber composite wire.
In order to achieve the above object, the present invention adopts the following technical scheme:
a multifunctional wire lifter compatible with carbon fiber wires is formed by mirror symmetry of the middle wire of a beam rod;
at the center line, the top and the bottom of the beam rod are respectively provided with a hanging hole;
the two side beam shoulders are respectively provided with a wire slot at the top and a hook hole at the bottom for connecting the hooks.
The wire slot and/or the hook are provided with matched protective hooks.
Furthermore, the guard hook is a U-shaped groove; the groove bottom is provided with a U-shaped groove matched with the wire groove and the hook.
Further, the cross section of the protective hook is provided with a plurality of through holes which are communicated with screw holes arranged on the wire groove and the hook edge ring.
The hook hole is arranged at the lower end of the cantilever, and the cantilever is vertically connected with the beam rod through the top end.
The hook uses the hook hole as the axis, and can rotate to adjust the angle.
The beam rods are sequentially connected through the hanging holes or through connecting sheets in series.
A four-split wire lifter is characterized in that the bottom of a beam shoulder of the beam is hung with a hook through a hook hole, and the center of a wire slot and the center of the hook are sequentially connected to form a square.
The six-split wire lifter comprises a first beam and a second beam, wherein the length of the second beam is greater than that of the first beam;
the bottom of the first beam rod is connected with a second beam rod, and the second beam rod is connected with a hook through a hook hole.
The beam rod comprises a first beam rod and a second beam rod, and the length of the second beam rod is greater than that of the first beam rod;
the bottom of the first beam rod is sequentially connected with 2 second beam rods, and the second beam rods at the end are connected with hooks through hook holes.
The invention has the advantages that:
the multifunctional wire lifter compatible with the carbon fiber wires is characterized in that the U-shaped groove-shaped protective hooks are arranged on the beam rod and the hooks, so that the carbon fiber composite wires and the vulnerable wires are protected, and the defect that the traditional wire lifter cannot be used for carbon fiber wire construction and live working is overcome. Through the mode of the mutual embedding of the U-shaped groove, the wire groove and the hook at the bottom of the wire lifter, the wire lifter is further fixed through a plurality of screws, so that the stability of the wire lifter is enhanced, the wire lifter is convenient to install and disassemble, the wire lifter can be selectively used according to specific wires, and the maintenance and replacement of parts are facilitated while the cost is reduced.
The multifunctional wire lifter compatible with the carbon fiber wires has strong combination and compatibility, can be combined into four-split, six-split and eight-split wire lifters according to the use requirement, and has firm connection and high strength. The wire lifting tool is simple in structure, low in cost and convenient to carry, repeated development and carrying of wire lifting tools with different numbers of wires and different sub-wires are avoided, the operation efficiency is improved, and the space of a live working garage and a live working garage is saved. When the universal wire lifter is used, on the premise of ensuring that wires are not damaged, corresponding line insulator strings are convenient to replace in an electrified mode, the gap of the universal wire lifter in the aspect of carbon fiber wire electrified operation is filled, and the universal wire lifter has strong practicability and wide applicability.
Drawings
Fig. 1 is a schematic structural view of a four-split wire lifter applied to a conventional wire according to the present invention.
Fig. 2 is a schematic structural diagram of a four-split wire lifter applied to a carbon fiber composite wire according to the present invention.
Fig. 3 is a schematic structural diagram of a six-split wire lifter applied to a carbon fiber composite wire according to the present invention.
Fig. 4 is a schematic structural diagram of an eight-split wire lifter applied to a carbon fiber composite wire according to the present invention.
Fig. 5 is a schematic structural view of the guard hook of the present invention.
The meaning of the symbols in the drawings is as follows: 1. beam rod, 2, cantilever, 3, couple, 4, screw, 5, wire casing, 6, suspension hole, 7, couple hole, 8, protection hook, 9, first beam rod, 10, second beam rod, 11, connection piece, 12, U type recess, 13, screw rod.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
A multifunctional wire lifter compatible with carbon fiber wires is composed of a beam rod 1 and/or a protecting hook 8, and the structure of the multifunctional wire lifter is mirror symmetry with the central line of the beam rod 1.
Suspension holes 6 are respectively formed at the top and the bottom of the middle line of the beam rod 1;
the two sides Liang Jian of the beam rod 1 are respectively provided with a wire slot 5 at the top and a hook hole 7 for connecting the hook 3 at the bottom, or the hook hole 7 is arranged at the lower end of the cantilever 2, and the cantilever 2 is vertically connected with the beam rod 1 through the top end.
The hook 3 takes the hook hole 7 as the axis, and can rotate to adjust the angle.
The protective hook 8 is a U-shaped groove, and the bottom of the groove is provided with a U-shaped groove 12 for accommodating the wire groove 5 and the hook 3; the section of the protecting hook 8 is provided with a plurality of through holes which are communicated and correspond to the thread grooves 5 and the thread holes 4 of the edge ring of the hook 3.
Preferably, the U-shaped groove 12 is arranged at the center line of the protecting hook 8, so that balance is improved, the gravity center is stabilized, and abrasion is reduced.
Example 1
The beam rods 1 are directly connected in sequence through the hanging holes 6 or are connected in series with the hanging holes 6 through the connecting sheets 11 in sequence to enlarge the distance between the beam rods 1.
According to the use requirement and the size of the interval between the beam rods 1, corresponding hooks 3 are arranged at the bottom of each beam rod 1.
If the carbon fiber composite wire is used as the carbon fiber composite wire, a protecting hook 8 is fixed on the corresponding wire slot 5 and the hook 3 and used for supporting the carbon fiber composite wire; the wire slot 5 or the hook 3 is embedded into the U-shaped groove 12, passes through the through hole of the cross section of the protecting hook 8 through the screw 13, and is fixed with the screw holes 4 of the side rings of the wire slot 5 and the hook 3.
Example 2
A four-split wire lifter is characterized in that the bottoms of beam shoulders on two sides of a single beam rod 1 are respectively hung with a hook 3 through a hook hole 7, and the centers of a wire slot 5 and the centers of the hook 3 are sequentially connected in a square shape.
Preferably, the hooking hole 7 or the cantilever 2 is arranged right below the wire slot 5.
And if the wire is a carbon fiber composite wire, the protective hook 8 is fixed on the corresponding wire slot 5 and the hook 3.
Example 3
The beam rod 1 comprises a first beam rod 9 and a second beam rod 10, and the length of the second beam rod 10 is larger than that of the first beam rod 9.
The bottom of the first beam rod 9 is connected with the second beam rod 10 through the hanging hole 6 or connected with the second beam rod 10 through the connecting sheet 11, and the bottom of the second beam rod 10 is connected with the hook 3 through the hook hole 7.
And if the wire is a carbon fiber composite wire, the protective hook 8 is fixed on the corresponding wire slot 5 and the hook 3.
Example 4
The beam rod 1 comprises a first beam rod 9 and a second beam rod 10, and the length of the second beam rod 10 is larger than that of the first beam rod 9;
the bottom of the first beam rod 9 is sequentially connected with 2 second beam rods 10 in series through the hanging hole 6 or through the connecting sheet 11, and the bottom of the second beam rod 10 at the end is connected with the hook 3 through the hook hole 7.
And if the wire is a carbon fiber composite wire, the protective hook 8 is fixed on the corresponding wire slot 5 and the hook 3.
When the embodiment is implemented, the hanging hole 6 at the top of the beam rod 1 or the top of the first beam rod 9 is used for connecting an insulating pull rod or a lead screw, and the inner wall of the protecting hook 8 can be provided with a corresponding buffer rubber cushion, so that the abrasion of the wire rod and the metal protecting hook 8 is reduced, the friction force of surface contact is increased, and the slip falling rate is reduced.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the invention.
Claims (4)
1. A multifunctional wire lifter compatible with carbon fiber wires is characterized in that the middle wires of beam rods are in mirror symmetry;
at the center line, the top and the bottom of the beam rod are respectively provided with a hanging hole;
the tops of the two side beam shoulders are respectively provided with a wire slot, and the bottoms of the two side beam shoulders are respectively provided with a hook hole for connecting a hook;
matched protective hooks are arranged on the wire slots and/or the hooks;
the protecting hook is a U-shaped groove; the bottom of the groove is provided with a U-shaped groove matched with the wire groove and the hook;
the section of the protective hook is provided with a plurality of through holes which are communicated and correspond to screw holes arranged on the wire slot and the hook edge ring;
the hanging hook hole is arranged at the lower end of the cantilever, and the cantilever is vertically connected with the beam rod through the top end;
the hook takes the hook hole as the axis, and can rotate to adjust the angle;
the beam rods are sequentially connected through the hanging holes or through connecting sheets in series.
2. The four-split wire lifter of the multifunctional wire lifter compatible with the carbon fiber wires according to claim 1, wherein the bottoms of the beam shoulders are respectively hung with hooks through hook holes, and the connecting lines of the centers of the wire slots and the centers of the hooks are square.
3. A six-split wire lifter of the carbon fiber-compatible multifunctional wire lifter of claim 1, wherein the beam comprises a first beam, a second beam, and the second beam has a length greater than the first beam;
the bottom of the first beam rod is connected with a second beam rod, and the second beam rod is connected with a hook through a hook hole.
4. An eight-split wire lifter of the carbon fiber-compatible multifunctional wire lifter of claim 1, wherein the beam comprises a first beam, a second beam, and the second beam has a length greater than the first beam;
the bottom of the first beam rod is sequentially connected with two second beam rods, and the second beam rods at the ends are connected with hooks through hook holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060334.2A CN108963872B (en) | 2018-09-12 | 2018-09-12 | Multifunctional wire lifter compatible with carbon fiber wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060334.2A CN108963872B (en) | 2018-09-12 | 2018-09-12 | Multifunctional wire lifter compatible with carbon fiber wires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108963872A CN108963872A (en) | 2018-12-07 |
| CN108963872B true CN108963872B (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811060334.2A Active CN108963872B (en) | 2018-09-12 | 2018-09-12 | Multifunctional wire lifter compatible with carbon fiber wires |
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| Country | Link |
|---|---|
| CN (1) | CN108963872B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366589A (en) * | 2020-10-30 | 2021-02-12 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Multi-angle adjustable six-bundle conductor lifting device for extra-high voltage direct current circuit |
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| CN108963872A (en) | 2018-12-07 |
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