CN106169715A - A kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods - Google Patents

A kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods Download PDF

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Publication number
CN106169715A
CN106169715A CN201610647765.3A CN201610647765A CN106169715A CN 106169715 A CN106169715 A CN 106169715A CN 201610647765 A CN201610647765 A CN 201610647765A CN 106169715 A CN106169715 A CN 106169715A
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China
Prior art keywords
pole
insulator
strain insulator
transmission line
arm
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CN201610647765.3A
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Inventor
王炜
纪航
赖志超
陈凯文
张超
李万龙
乔丰翔
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State Grid Shanghai Electric Power Co Ltd
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State Grid Shanghai Electric Power Co Ltd
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Priority to CN201610647765.3A priority Critical patent/CN106169715A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

Abstract

A kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, for the charged exchange of strain insulator string of ultrahigh voltage transmission line, including: the upper and lower of universal rotational can be done and raise one's hat, connecting the upper and lower upper and lower pole of the tubular raised one's hat respectively, upper and lower pole constitutes the scalable pole of adjustable length.Axial long tooth bar it is provided with outside upper pole, it is provided with a gear-box by a gear-box ring for fixing outside lower pole, be provided with in gear-box ratchet, ratchet, under ratchet drives occlusion drive the gear of long tooth bar outside pole, swing back and forth by arranging the ratchet spanner outside gear-box, driven gear axle and pinion rotation, engaged gears drives long tooth bar and upper pole outside described upper pole to move axially, and regulates upper and lower pole to required total length.According to the present invention, disengaging weight when strain insulator string of ultrahigh voltage transmission line is charged to be exchanged can be alleviated, conveniently insulator chain is carried out the most charged monolateral exchange, improves work efficiency.

Description

A kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods
Technical field
The present invention relates to a kind of electric power overhaul devices and methods therefor, in particular it relates to extra-high voltage (1000KV) transmission line of electricity Cross-arm side whole string strain insulator departs from and restoration methods.Described UHV transmission line cross-arm side whole string strain insulator is exchanged With departing from and restoration methods, disengaging weight when extra-high voltage strain insulator string is charged to be exchanged can be alleviated, and fixture is not easy sliding Go out, reduce work difficulty, conveniently insulator chain is carried out the most charged monolateral exchange, improves work efficiency.
Background technology
In the past, extra high voltage network, the commonly used double bundle conductor of such as 220kV transmission line of electricity, match was exhausted Edge the most all uses double serial type formula.Its charged exchange transmission line of electricity and insulator chain thereof are the significant terms in livewire work project Mesh, needs in the case of meeting safe distance, tightens up insulator chain and be replaced the work such as insulator.
Generally, for various load being made to tighten up such as screw mandrel, cunning for exchanging the various fixtures of the double insulator string of transmission line of electricity The instruments such as car group, hydraulic pressure tightener, machinery tightener coordinate with fixture, insulator chain carries out charged monolateral exchange, reduces work Make difficulty, improve work efficiency.Such as, a kind of 220KV strain insulator exchanges fixture, described fixture include the first fixture with Second fixture, described first fixture and the second fixture are separately positioned on the first gusset piece and second for connecting insulator string On fishplate bar, described first fixture is provided with the first coaster hole and bottle supporting frame aperture, described second fixture is provided with the 3rd coaster, Second coaster hole and lead screw hole, on described first coaster hole connect have the first coaster, described second fixture by tightening device with First fixture 1 connects.During use, after load tightening device is installed, utilize tightening device to tighten up insulator chain, be allowed to unilateral insulation After son is lax, manpower departs from and slowly relaxes to ground, meanwhile, keeps side insulator to connect intact, to increase safety.Treat After being assigned a new job in side, fixture installation is carried out operation to opposite side.
But, in recent years, need for electricity amount is greatly increased, and the 220kV transmission line of electricity as supertension is wanted meeting Ask, occur in that 500KV, the 800KV even UHV transmission line of 1000kV.Described 500KV, the 800KV even spy of 1000kV Ultra-high-tension power transmission line uses 4-8 split conductor, and its transmission line of electricity uses 2-4 insulator string respectively, and the more conventional 220kV of weight is defeated Electric line sharply increases.Such as, 500KV UHV transmission line use 2-4 string, 28-31 sheet/string, substance 8KG/ sheet exhausted Edge, the UHV transmission line of 800KV uses 3-4 string, 78/string, the insulator of substance 28-30KG/ sheet, the spy of 1000KV Ultra-high-tension power transmission line uses 3-4 string, 5,60/string, the insulator of the substance sheet of KG/ more than 20, and gross weight sharply increases.So, right The power supply reliability of UHV transmission line, livewire work, charged exchange insulator chain it is also proposed higher requirement.
Such as, in the past, when the strain insulator string of 220kV transmission line of electricity is exchanged, because it uses 2-4 string, 28- 31/string, the insulator of substance 8KG/ sheet, when charged exchange insulator chain, still can use motor-driven strand to described insulator chain Mill easily gets loose so that it slowly comes off and hangs down to ground, to be repaired or reset after exchanging insulator chain.
As it has been described above, the ultrahigh voltage alternating current transmission lines strain insulator string weight of 1000KV is bigger, manpower cannot get loose, Even if using motor-driven grinding mill, its operation is inconvenient, laborious;When carrying out strain insulator string and exchanging, it is necessary to use two-three pieces Gusset piece, by go here and there more, always weigh several tons insulator chain secondary connect after, get loose, change.Thus, to described gusset piece Connection propose requirements at the higher level.It addition, because of the restriction of existing production specification and use habit and the requirement of manufacturing cost, existing Charged exchange insulator chain with, be normalized isosceles triangle or isosceles ladder as the gusset piece of main connecting elements or fixture Shape, has hypotenuse, so that strain insulator string operation is unstable, easily slides out, and causes 1000KV strain insulator string to be exchanged Cannot easily carry out, time serious, even result in the generation of security incident.
Application No. " 201410359584.1 ", invention entitled " a kind of strain insulator string for super-high voltage transmitting line Charged for replacement gold utensil and method thereof " patent disclose a kind of following technical proposals:
Use a kind of extra-high voltage (800KV) strain insulator string used for transmission line charged for replacement gold utensil, described extra-high voltage Strain insulator string charged for replacement gold utensil used for transmission line includes that gold utensil body, the connection of described gold utensil body side are shaped as Lumbar triangle shape or the first gusset piece of isosceles trapezoid, described first gusset piece cross-arm side connects many strings, always weighs the insulation of several tons Substring, opposite side connects multiple fission conductor,
Described gold utensil body opposite side connects rectangle the second gusset piece, and the tension force that the second gusset piece bears is transferred to first Gusset piece, described second gusset piece for parallel, uniformly connect multiple fission conductor,
Described gold utensil body is formed for embedding fixing described first gusset piece hypotenuse at the first gusset piece for connecting Groove, described groove shapes and the first gusset piece hypotenuse tight connecting,
Walking two, walking three coasters of the hook for drawing fixing wire and coupling hook it is provided with on described gold utensil body,
Described walk two, walk the three coaster other ends and connect lap guard six pulley that is arranged on insulator chain connecting plate, traction Rope one end is connected to the motor-driven grinding mill at the bottom of tower through steel tower cross-arm, and the other end connects to walk two through described lap guard six pulley, walks three cunnings Car,
Described walk two coaster one end parallel link plates of connecting insulator string, described in walk three coaster one end connect described gold utensils this Body, described walk two coasters and walk to arrange in the middle of three coasters lap guard six pulley, described in walk drag rope one end of three coasters through ferrum Tower cross-arm is connected to the motor-driven grinding mill at the bottom of tower, and the other end connects to walk two coasters through described lap guard six pulley.
According to above-mentioned patent application technology when extra-high voltage (800KV) strain insulator string being carried out whole string and changing, by gold Tool body connects the first gusset piece and the second gusset piece, by the hook arranged on described gold utensil body and walk two, walk three coasters, Lap guard six pulley and the motor-driven grinding mill arranging ground drive, and after stringing lead to described strain insulator string gets loose, cable wire connects Fixing described second gusset piece and cross-arm so that described strain insulator string slowly hangs down to ground after getting loose and is replaced.More Described strain insulator string after changing is by walking two, walking three coasters, lap guard six pulley and arrange the motor-driven grinding mill driving on ground Restore in situ, a string changing strain insulator string under carrying out.
Therefore, described extra-high voltage (800KV) strain insulator string used for transmission line charged for replacement gold utensil and side thereof Method no doubt can be used for charged exchange when exchanging extra-high voltage (800KV) strain insulator string, can alleviate extra-high voltage (800KV) the disengaging weight that strain insulator string is charged when exchanging, and while gold utensil is not easy to skid off, and pull rope can be prevented Rope skids, is wound around, and reduces work difficulty.But before described method uses, it is necessary to simultaneously that whole phase conductor (i.e. 6-8 root wire) is same Time tighten up, and some specific connecting elements need to be used, such as connecting plate and the gold utensil of special compounding thereof, and with walk two, to walk three sliding Car and walk two coasters and walk three lap guard six pulleys arranged in the middle of coasters etc. and coordinate, often string strain insulator needs with the connection of cross-arm Separate set-up clamps and auxiliary device thereof, there is inconvenience in operation.
Summary of the invention
For solving the problem of above-mentioned existence, it is an object of the invention to:
There is provided a kind of extra-high voltage (1000KV) transmission line cross-arm side whole string strain insulator to depart from and restoration methods, be used for Charged exchange when exchanging extra-high voltage (1000KV) strain insulator string, described extra-high voltage (1000KV) transmission line of electricity is whole String strain insulator disengaging and restoration methods can alleviate disengaging weight during the charged exchange of extra-high voltage (1000KV) strain insulator string Amount, fixture is not easy to skid off, and insulator chain conveniently carries out the most charged monolateral exchange.
A kind of UHV transmission line cross-arm side whole string strain insulator of the present invention departs from and the technical side of restoration methods Case is:
A kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, for extra-high voltage transmission line The handling of road cross-arm side whole string strain insulator, exchange, it is characterised in that
Arrange UHV transmission line cross-arm side whole string strain insulator at cross-arm side to depart from and recovery device, described device Including:
The upper and lower of universal rotational can be done raise one's hat, connect the upper and lower upper and lower pole of the tubular raised one's hat respectively,
Upper pole is sheathed in lower pole movably, constitutes the scalable pole of adjustable length,
It addition, arrange one end to connect the adjustable in length turning to gusset piece, the other end to be connected of side of wire with steel tower cross-arm Pull bar and
The mechanical tightening device turning to gusset piece of connecting length compensation linkage side of wire,
Described adjustable in length pull bar is arranged at steel tower cross-arm and the two whole string strain insulator strings of string connected between clamp Between, and parallel with described whole string strain insulator string,
Rotate machinery tightening device stringing lead pulling force, and the whole phase 6-8 root wire tension that transferance is on insulator To adjustable in length pull bar, make a string strain insulator-chain electrical insulator of adjustable in length pull bar side be in loosen, do not stress from By state, then, described bunch of insulator is departed from and recovery device turns to above strain insulator-chain electrical insulator, utilize whole string exhausted Put to ground after edge departs from and strain insulator-chain electrical insulator is sling by the calabash of recovery device upper end and suspension hook, then with same side After a string strain insulator-chain electrical insulator new on ground is sling and installed by method, loosen machinery tightening device, make new strain-resisting whole string Insulator stress, completes the exchange of strain insulator-chain electrical insulator, then completes the tune of remaining whole string strain insulator by same method Change.
Depart from and restoration methods according to a kind of UHV transmission line cross-arm side whole string strain insulator of the present invention, It is characterized in that,
Being provided with axial long tooth bar outside upper pole, in lower pole correspondence, long tooth bar outside pole is provided with and axially opens Mouthful so that outer gear acts on described long tooth bar,
Be provided with a gear-box by a gear-box ring for fixing outside lower pole, be provided with in gear-box ratchet, ratchet, spine Under wheel drive, occlusion drives the gear of long tooth bar outside upper pole,
Swinging back and forth by arranging the ratchet spanner outside gear-box, driven gear axle and pinion rotation, engaged gears drives Outside described upper pole, long tooth bar and upper pole move axially, and regulate upper and lower pole extremely required total length, and ratchet is engaged ratchet Upper and lower pole after regulating total length positions, fixes.
Depart from and restoration methods according to a kind of UHV transmission line cross-arm side whole string strain insulator of the present invention, its It is characterised by,
Outer tube wall for the sheathed upper pole lower pole inner tube wall in its tubular cavity and upper pole is respectively formed with Concavo-convex damping wall so that upper pole moves up laborsaving along lower pole, after once location is fixing, under being difficult to because of its deadweight Sliding.
Depart from and restoration methods according to a kind of UHV transmission line cross-arm side whole string strain insulator of the present invention, its It is characterised by,
The taper shunk in internal diameter from top to bottom for the sheathed upper pole lower pole inner tube wall in its tubular cavity, makes Pole must be gone up and move up laborsaving along lower pole, after once location is fixing, be difficult to glide because of its deadweight.
Depart from and restoration methods according to a kind of UHV transmission line cross-arm side whole string strain insulator of the present invention, its It is characterised by,
Handling insulator chain can be as required in 4300mm to 2500mm range regulation by the length of scalable pole.
Depart from and restoration methods according to a kind of UHV transmission line cross-arm side whole string strain insulator of the present invention, its It is characterised by,
Upper and lower pole material of main part uses high-strength aluminum alloy hollow circular-tube.
Depart from and restoration methods according to a kind of UHV transmission line cross-arm side whole string strain insulator of the present invention, its It is characterised by,
Described adjustable in length pull bar is made up of three regulation arm-ties can fixed after moving each other, and two ends are outer regulation Arm-tie, centre is interior regulation arm-tie, and every scalable arm-tie is provided with multiple adjustment hole, draws by moving to axial outer regulation After plate and interior regulation arm-tie, it is connected and fixed adjustment hole corresponding to inside and outside regulation arm-tie with bolt and nut, i.e. adjustable described in scalable Joint pull bar is to the length needed.
Depart from and restoration methods according to a kind of UHV transmission line cross-arm side whole string strain insulator of the present invention, its It is characterised by,
Lower pole upper end is provided with upper pole connection dish (hoop) of fixing connection, pole connection dish in fixing connection On (hoop) and upper pole, spacing is provided with fixing screw, when regulating upper and lower pole to required total length, is bolted Upper and lower pole.
Lower pole upper end is provided with upper pole connection dish (hoop) of fixing connection, pole connection dish in fixing connection On (hoop) and upper pole, spacing is provided with fixing screw, when regulating upper and lower pole to required total length, is bolted Upper and lower pole.
Rotate machinery tightening device just can stringing lead pulling force, make strain insulator-chain electrical insulator be in loosen, do not stress from By state.Utilize the bunch of insulator on steel tower cross-arm side to depart from and recovery device, bunch of insulator is departed from and recovery device Turn to above strain insulator-chain electrical insulator, utilize bunch of insulator disengaging and the calabash of recovery device upper end and suspension hook by strain-resisting whole Insulator string is put to ground after slinging.After strain insulator-chain electrical insulator new on ground being sling and is installed by same method again Loosen machinery tightening device.Complete transmission line of electricity and exchange strain insulator-chain electrical insulator.
According to the present invention, during charged exchange when 1000KV strain insulator string is exchanged, 1000KV can be alleviated resistance to Open disengaging weight when insulator chain is charged to be exchanged, and fixture is not easy to skid off.It addition, during operation, it is not necessary to whole phase is led simultaneously Line (i.e. six conductors) tightens up simultaneously, without using some specific connecting elements and sliding with walking two, walk three coasters and walking two Car coordinates with walking lap guard six pulley etc. arranged in the middle of three coasters.Thus, reduce work difficulty, simple, laborsaving, convenient to insulation Substring carries out the most charged monolateral exchange, improves work efficiency.
Accompanying drawing explanation
Fig. 1 exchanges signal for using present invention disengaging and recovery device to carry out UHV transmission line strain insulator-chain electrical insulator Figure.
Fig. 2 is that Fig. 1 UHV transmission line of the present invention exchanges strain insulator-chain electrical insulator device top view.
Fig. 3 is that bunch of insulator of the present invention departs from and recovery device schematic diagram.
Fig. 4 is that the gear box B-B place section view that bunch of insulator of the present invention departs from and under recovery device, pole upper end is installed is shown It is intended to.
Fig. 5 is that the gear box A-A place of the lower pole upper end installation of the disengaging of Fig. 4 bunch of insulator of the present invention and recovery device cuts Face figure.
Fig. 6 is adjustable in length pull bar schematic diagram one example of the present invention.
Fig. 7 is adjustable in length pull bar schematic diagram one example of the present invention.
In figure, 1 departs from and recovery device for cross-arm side bunch of insulator, and 2 is adjustable in length pull bar, and 3 for turning to connection Plate, 4 for coupling clamp, and 5 is machinery tightening device, and 6 is side of wire gold utensil yoke plate, and 7 is bunch of insulator, and 8 is steel tower cross-arm, and 11 Raising one's hat under for, 12 is lower pole, and 13 is gear-box, and 14 is gear-box ring for fixing, and 15 is upper pole, 16 on raise one's hat, 17 is spine Pawl, 18 is ratchet, and 19 is the gear driven at ratchet, and 20 is long tooth bar outside the upper pole of engaged gears driving, and 21 for transfering to other localities Joint arm-tie, 22 is bolt, and 23 is middle interior regulation arm-tie.
Detailed description of the invention
Below in conjunction with the accompanying drawings with the detailed description of the invention whole string in extra-high voltage (1000KV) transmission line cross-arm side to the present invention Insulator departs from and recovery device is described further.
Embodiment
As shown in Figure 1, 2, a kind of 1000KV transmission line of electricity exchanges strain insulator-chain electrical insulator device, exhausted including the whole string of cross-arm side Edge depart from and recovery device 1, adjustable in length pull bar 2, turn to gusset piece 3, couple clamp 4, machinery tightening device 5 form. Departing from and recovery device 1 equipped with a set of bunch of insulator on steel tower cross-arm side 8, bunch of insulator departs from and recovery device main body Being a cylindrical member, upper and lower two ends are connected to upper and lower raising one's hat, and can make upper and lower, the Universal rotary of left and right.
The bunch of insulator being arranged at cross-arm side departs from and recovery device,
Adjustable length pull bar 2 is made up of three scalable arm-ties, and scalable arm-tie has many holes, can be according to different length Requirement bolt regulates.One end connects the adjustable in length pull bar turning to gusset piece, the other end to be connected with steel tower cross-arm.Described length Degree compensation linkage is arranged between steel tower cross-arm and the two whole string strain insulator strings of string connected between clamp, and whole with described String strain insulator string is parallel.
On the yoke plate 6 of side of wire gold utensil equipped with upper and lower two set machinery tightening devices 5, machinery tightening device 5 with couple clamp 4 are connected, and couple clamp 4 and are connected with turning to gusset piece 3, turn to gusset piece 3 to be connected with adjustable in length pull bar 2, adjustable in length The other end of pull bar 2 is connected with steel tower cross-arm side.
Rotate machinery tightening device 5 just can stringing lead pulling force, make strain insulator-chain electrical insulator 7 be in and loosen, do not stress Free state.Utilize the bunch of insulator on steel tower cross-arm side 8 to depart from and recovery device 1, bunch of insulator is departed from and recovers Device turns to above strain insulator-chain electrical insulator 7, utilizes disengaging and the calabash of recovery device upper end and suspension hook by exhausted for strain-resisting whole string Edge is put to ground after slinging.By same method, strain insulator-chain electrical insulator new on ground is sling again, and be arranged on Loosen machinery tightening device after on 1000KV transmission line of electricity, recover the pulling force of former transmission line of electricity, complete transmission line of electricity and exchange resistance to Open bunch of insulator.
Described disengaging and recovery device include:
Can do the upper and lower of universal rotational to raise one's hat, connect the upper and lower upper and lower pole of the tubular raised one's hat respectively, upper pole may move Be sheathed in lower pole, constitute the scalable pole of adjustable length, above raising one's hat is provided with two extensions and pulls line hole and calabash and hang Hook hole.
Being provided with axial long tooth bar outside upper pole, in lower pole correspondence, long tooth bar outside pole is provided with and axially opens Mouth is so that outer gear acts on described long tooth bar.It is provided with a gear-box, gear by a gear-box ring for fixing outside lower pole Be provided with in case ratchet, ratchet, under ratchet drives occlusion drive the gear of long tooth bar outside pole.
Swing back and forth by arranging the ratchet spanner outside gear-box, driving pawl, driven gear axle and pinion rotation, gear Occlusion drives long tooth bar and upper pole outside described upper pole to move axially, and regulates upper and lower pole and stops to required total length, ratchet Live the upper and lower pole after total length is regulated by ratchet to position, fix.
Gear-box is set outside one end of pole on lower pole connects, and by a gear-box ring for fixing fixed gear Case.The described gear-box ring for fixing being arranged at lower pole upper end is simultaneously used for fixing upper and lower pole.
According to the present invention, handling insulator chain can be as required at 4300mm to 2500mm model by the length of scalable pole Enclosing regulation, upper and lower pole material of main part uses high-strength aluminum alloy hollow circular-tube.
As it can be seen, a kind of 1000KV transmission line of electricity exchanges strain insulator-chain electrical insulator device, including cross-arm side whole string insulation Son depart from and recovery device 1, adjustable in length pull bar 2, turn to gusset piece 3, couple clamp 4, machinery tightening device 5 form.? Departing from and recovery device 1 equipped with a set of bunch of insulator on steel tower cross-arm side 8, the steel tower in the middle of two string strain insulators 7 is horizontal Load hangs a root length degree compensation linkage 2 on side 8, equipped with upper and lower two set machinery tightening devices 5 on the yoke plate 6 of side of wire gold utensil.Turn Motivation tool tightening device 5 just energy stringing lead pulling force, makes strain insulator-chain electrical insulator 7 be in the free state loosened, do not stress.Profit With the disengaging on steel tower cross-arm side 8 and recovery device 1, put to ground after strain insulator-chain electrical insulator is sling.Again with same side Method loosens machinery tightening device after strain insulator-chain electrical insulator new on ground is sling and is arranged on transmission line of electricity, complete defeated Electric line exchanges strain insulator-chain electrical insulator.
According to the present invention, during charged exchange when extra-high voltage strain insulator string is exchanged, extra-high voltage can be alleviated resistance to Open disengaging weight when insulator chain is charged to be exchanged, and fixture is not easy to skid off.It addition, during operation, it is not necessary to whole phase is led simultaneously Line (i.e. 6-8 root wire) tightens up simultaneously, without use some specific connecting elements and with walk two, walk three coasters and be arranged at Walk two coasters and walk the cooperations such as middle lap guard six pulley of three coasters.Thus, reduce work difficulty, simple, laborsaving, convenient to absolutely Edge substring carries out the most charged monolateral exchange, improves work efficiency.

Claims (9)

1. UHV transmission line cross-arm side whole string strain insulator departs from and a restoration methods, for UHV transmission line The handling of cross-arm side whole string strain insulator, exchange, it is characterised in that
Arrange UHV transmission line cross-arm side whole string strain insulator at cross-arm side to depart from and recovery device, described device bag Include:
The upper and lower of universal rotational can be done raise one's hat, connect the upper and lower upper and lower pole of the tubular raised one's hat respectively,
Upper pole is sheathed in lower pole movably, constitutes the scalable pole of adjustable length,
It addition, arrange one end to connect the adjustable in length pull bar turning to gusset piece, the other end to be connected of side of wire with steel tower cross-arm And
The mechanical tightening device turning to gusset piece of connecting length compensation linkage side of wire,
Described adjustable in length pull bar is arranged between steel tower cross-arm and the two whole string strain insulator strings of string connected between clamp, And parallel with described whole string strain insulator string,
Rotate machinery tightening device stringing lead pulling force, and the whole phase 6-8 root wire tension that transferance is on insulator is to long Degree compensation linkage, makes a string strain insulator-chain electrical insulator of adjustable in length pull bar side be in the free shape loosening, not stressing State, then, departs from described bunch of insulator and recovery device turns to, above strain insulator-chain electrical insulator, utilize bunch of insulator Disengaging and the calabash of recovery device upper end and suspension hook are put to ground after being sling by strain insulator-chain electrical insulator, then will by same method After a string strain insulator-chain electrical insulator new on ground is sling and installed, loosen machinery tightening device, make new strain-resisting whole string insulate Sub-stress, completes the exchange of strain insulator-chain electrical insulator, then completes the exchange of remaining whole string strain insulator by same method.
2. a kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, its It is characterised by,
Be provided with axial long tooth bar outside upper pole, in lower pole correspondence long tooth bar outside pole be provided with axially open with Just outer gear acts on described long tooth bar,
It is provided with a gear-box by a gear-box ring for fixing outside lower pole, is provided with ratchet, ratchet in gear-box, drives at ratchet Dynamic lower occlusion drives the gear of long tooth bar outside upper pole,
Swinging back and forth by arranging the ratchet spanner outside gear-box, driven gear axle and pinion rotation, engaged gears drives described Outside upper pole, long tooth bar and upper pole move axially, and regulate upper and lower pole extremely required total length, and ratchet is engaged ratchet to always Upper and lower pole after length adjustment carries out positioning, fixing.
3. a kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, its It is characterised by,
Outer tube wall for the sheathed upper pole lower pole inner tube wall in its tubular cavity and upper pole is respectively formed with concavo-convex Damping wall so that upper pole moves up laborsaving along lower pole, after once location is fixing, is difficult to glide because its deadweight.
4. a kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, its It is characterised by,
The taper shunk in internal diameter from top to bottom for the sheathed upper pole lower pole inner tube wall in its tubular cavity so that on Pole moves up laborsaving along lower pole, after once location is fixing, is difficult to glide because of its deadweight.
5. a kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, its It is characterised by,
Handling insulator chain can be as required in 4300mm to 2500mm range regulation by the length of scalable pole.
6. a kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, its It is characterised by,
Upper and lower pole material of main part uses high-strength aluminum alloy hollow circular-tube.
7. a kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, its It is characterised by,
Described adjustable in length pull bar is made up of three regulation arm-ties can fixed after moving each other, and two ends are that outer regulation is drawn Plate, centre is interior regulation arm-tie, and every scalable arm-tie is provided with multiple adjustment hole, by moving to axial outer regulation arm-tie After interior regulation arm-tie, be connected and fixed adjustment hole corresponding to inside and outside regulation arm-tie with bolt and nut, i.e. scalable described in scalable Pull bar is to the length needed.
8. a kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, its It is characterised by,
Lower pole upper end is provided with and fixing connects upper pole connection dish (hoop), in fixing connection pole connection dish (hoop) and On upper pole, spacing is provided with fixing screw, when regulating upper and lower pole to required total length, is bolted upper and lower Pole.
9. a kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods, its It is characterised by,
Handling insulator chain can be as required in 4300mm to 2500mm range regulation by the length of scalable pole.
CN201610647765.3A 2016-08-09 2016-08-09 A kind of UHV transmission line cross-arm side whole string strain insulator departs from and restoration methods Pending CN106169715A (en)

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CN204046766U (en) * 2014-09-02 2014-12-24 天津市胜通通信电子工程有限公司 Lift
CN204131002U (en) * 2014-10-28 2015-01-28 广西电网有限责任公司贺州供电局 For changing the supporting tool of the two insulator string of strain tower
CN204927981U (en) * 2015-10-09 2015-12-30 国网上海市电力公司 Whole string of insulator of change strain insulator is with pull rod device of adjustable length

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CN102856838A (en) * 2012-08-31 2013-01-02 国家电网公司 Tubular bus support insulator changing tool and method
CN103457200A (en) * 2013-07-22 2013-12-18 国家电网公司 Tool set for replacing strain insulator string of substation framework
CN204046766U (en) * 2014-09-02 2014-12-24 天津市胜通通信电子工程有限公司 Lift
CN204131002U (en) * 2014-10-28 2015-01-28 广西电网有限责任公司贺州供电局 For changing the supporting tool of the two insulator string of strain tower
CN204927981U (en) * 2015-10-09 2015-12-30 国网上海市电力公司 Whole string of insulator of change strain insulator is with pull rod device of adjustable length

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