CN108521100A - Three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines - Google Patents
Three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines Download PDFInfo
- Publication number
- CN108521100A CN108521100A CN201810635934.0A CN201810635934A CN108521100A CN 108521100 A CN108521100 A CN 108521100A CN 201810635934 A CN201810635934 A CN 201810635934A CN 108521100 A CN108521100 A CN 108521100A
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- China
- Prior art keywords
- snap
- gauge
- hanging point
- fixture
- card slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
Abstract
The invention belongs to electrical equipment technical fields, especially three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines, including the first fixture and the second fixture, first fixture includes symmetrically arranged first snap-gauge and the second snap-gauge, it is respectively provided with the first card slot and the first hanging point on first snap-gauge and the second snap-gauge, first hanging point is rotatably connected on the notch position of the first card slot by axis pin, second fixture includes symmetrically arranged third snap-gauge and the 4th snap-gauge, it is respectively provided with the second card slot and the second hanging point on third snap-gauge and the 4th snap-gauge, the slot bottom of second card slot is the ramp-like configuration to match with side of wire connecting plate, second hanging point is rotatably connected on the notch position of the second card slot by axis pin, length adjustment mechanism is set between first hanging point and the second hanging point.The slot bottom of second card slot is designed as matched ramp-like configuration by the present invention, and the perfection both realized agrees with, and stability is ensured, and high mechanical strength, small easy to assemble.
Description
Technical field
The invention belongs to electrical equipment technical fields, especially three V-type insulator chain of ± 1100kV DC power transmission lines
Special mould clamp.
Background technology
Insulator chain refers to two or more insulator elements and combines, the component of flexible suspension conducting wire.Insulator chain
It is the protective device needed with fixed and operation, for hanging conducting wire and conducting wire being made to insulate with shaft tower and the earth.Using defeated
Insulator chain in electric line, due to tower structure, insulator structure pattern, wire size and radical per phase sub-conductor and
The difference of voltage class keeps the assembly type of insulator chain different.Wherein, V-arrangement insulator chain is common one kind, is had
Following advantages：（1）Insulator chain can be limited to wave, to reduce tower head size；（2）Line corridor can be reduced, to reduce
The trees in forest zone cut down width；（3）Purchase when building circuit can be reduced and put the fund that corridor is spent away, reduced investment outlay to play
Purpose.
The patent document of Authorization Notice No. CN103871693B discloses a kind of tri- V-types of UHV transmission line 550KN
Suspension insulator, including hardware, suspension insulator, grading ring, shading ring, pre reeled silk type ship type suspension clamp, it is unilateral
Suspension insulator be 3, mount ball-eye on each suspension insulator one end, the ball-eye other end is connected to a DB
In adjustment plate, which is connected to one one three yoke plate lower ends of change, and a three yoke plate upper ends of change are sequentially connected with one first directly
Angle hanging plate, DB adjustment plates, another the first right angle hanging plate, hardware；The other end of each suspension insulator passes through bowl respectively
Head hanging plate is connected to two three change duplex plates being fixed with one, and two three become duplex plates and pass through two the first parallel hanging plates connections
To the first yoke plate both sides, the first yoke plate lower end is connected to the second yoke plate by the second parallel hanging plate again, and the second yoke plate both sides respectively connect
Connect a third right angle hanging plate；During above-mentioned three similar V-type insulator chains are repaired, are replaced, workload
Greatly, replacing construction is long.
The patent document of Authorization Notice No. CN205265143U discloses a kind of electrification of ultra-high-tension power transmission line V-type insulator chain more
Fixture is changed, including preceding card, rear card and both ends are hingedly connected to two groups of retraction assemblies at front and back fixture both ends；Retraction assemblies include
Sequentially connected manual lead screw and insulation pull-rod；Preceding card ontology is the symmetrical cross overall structure with flank, preceding
It is provided with open slot in the middle part of card ontology, open slot is through before and after preceding card ontology, and upper end closed, lower ending opening；Preceding card
Two flanks be equipped with the first hinge hole；Card ontology is separate structure afterwards, blocked by two shapes and construction identical left half,
Right half card composition；Left half card, right half card are " L-shaped ", and the fixed part of two and half cards, which is equipped with, sets bolt hole, and is bolted
The top of two and half cards, two and half cards is equipped with the second hinge hole；Manual lead screw is hinged by the first hinge hole and preceding card, and insulation is drawn
Stick is hinged by the second hinge hole and rear card.The structure is disadvantageous in that：Preceding card and rear card can not carry out V insulators
Agree with comprehensively, there is a problem of in conjunction with shakiness.
Invention content
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide ± 1100kV DC power transmission lines three
Join V-type insulator chain special mould clamp, the present invention slot bottom of the second card slot is designed as winning in succession with side of wire match it is skewed
Structure, the perfection both realized agree with, and stability is ensured, and high mechanical strength, small easy to assemble.
In order to achieve the above objectives, the present invention uses following technical scheme：
Three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines, including it is fixed on the first card of cross-arm side connecting plate
Having and be fixed on the second fixture of side of wire connecting plate, first fixture includes symmetrically arranged first snap-gauge and the second snap-gauge,
The first card slot and the first hanging point are respectively provided on first snap-gauge and the second snap-gauge, the first hanging point is rotatably connected on by axis pin
The notch position of one card slot, second fixture include symmetrically arranged third snap-gauge and the 4th snap-gauge, the third snap-gauge and
The second card slot and the second hanging point are respectively provided on 4th snap-gauge, the slot bottom of the second card slot is skewed to match with side of wire connecting plate
Structure, the second hanging point is rotatably connected on the notch position of the second card slot by axis pin, between first hanging point and the second hanging point
Length adjustment mechanism is set.
Further, the length adjustment mechanism includes sequentially connector, connecting rod, adjusts lead screw and internal thread lead screw,
The connector and the first hanging point pin joint, the connector are rotatablely connected with connecting rod, and the connecting rod is fixed with lead screw is adjusted
Connection, the adjusting lead screw coordinate with internal thread wire rod thread, the pin joint of the internal thread lead screw and the second hanging point.
Further, two length adjustment mechanisms are set between every group of first hanging point and the second hanging point.
Further, first fixture and the second fixture are titanium alloy material, and the connecting rod is insulating bar.
Further, first fixture is splayed, and first snap-gauge and the second snap-gauge are close to the portion of the first hanging point
It is divided into arc or ramp-like configuration.
Further, positioning screw hole, the positioning screw hole internal thread connection are set on the third snap-gauge and the 4th snap-gauge
Jackscrew.
Further, rubber antiskid pad is arranged in the slot bottom of second card slot, and the end face setting of the rubber antiskid pad is anti-
Sliding line or anti-skid bulge.
The beneficial effects of the invention are as follows：
1. the first fixture of the present invention includes symmetrically arranged first snap-gauge and the second snap-gauge, the second fixture includes symmetrically arranged
The first card slot and the first hanging point, third snap-gauge and are respectively provided on third snap-gauge and the 4th snap-gauge, the first snap-gauge and the second snap-gauge
The second card slot and the second hanging point are respectively provided on four snap-gauges, the first card slot is used to mutually be clamped with the cross-arm side connecting plate of insulator chain,
Second card slot is used to mutually be clamped with the conductive side connecting plate of insulator chain, since side of wire connecting plate is herringbone structure, the present invention
The slot bottom of second card slot is designed as to matched ramp-like configuration, the perfection both realized agrees with, the first hanging point and the
Two hanging points are for accepting length adjustment mechanism；
In use, the first snap-gauge and the second snap-gauge are fastened on cross-arm side connecting plate, the first hanging point is mounted on by positioning pin
On first snap-gauge and the second snap-gauge, then third snap-gauge and the 4th snap-gauge are fastened on side of wire connecting plate, and tighten jackscrew, are led to
It crosses positioning pin the second hanging point is mounted on third snap-gauge and the 4th snap-gauge, finally be installed between the first hanging point and the second hanging point
Length adjustment mechanism, tightening length adjustment structure make insulator chain relax by the load transfer to fixture of insulator chain；It wins
Spring catch on insulator replaces insulator；After replacement, relaxed length regulating mechanism makes load transfer to insulator chain
On, remove fixture.Fixture disclosed by the invention and the connecting plate perfection at insulator chain both ends agree with, and stability is ensured, and
It is high mechanical strength, small easy to assemble；
Through experiment, nominal operating duty of the invention reaches 425kN, dynamic test load 637.5kN, and safety coefficient is 2.5 times, real
The safety work of existing ± 1100 kilovolts of three V-type insulator chains of extra high voltage direct current transmission line tangent tower charged for replacement.
2. the first fixture and the second fixture are titanium alloy material, improved while the volume of the tool that reduces itself
The mechanical strength of tool alleviates the weight of tool, reduces operating risk, improves the safety of work, and connecting rod is insulation
Bar improves the insulation performance of the present invention.
3. it close to the part of the first hanging point is arc or inclination that the first fixture, which is splayed, the first snap-gauge and the second snap-gauge,
Shape structure, this structure design, the effective width that can be effectively increased between two the first hanging points, practicability are stronger.
4. rubber antiskid pad is arranged in the slot bottom of the second card slot, anti-skid chequer or anti-skidding convex is arranged in the end face of rubber antiskid pad
It rises, this structure design can effectively improve the frictional force between third snap-gauge and the 4th snap-gauge and side of wire connecting plate.
Description of the drawings
Fig. 1 is the structural schematic diagram of one use state of embodiment；
Fig. 2 is the structural schematic diagram of embodiment one first snap-gauge and the second snap-gauge；
Fig. 3 is the structural schematic diagram of embodiment one third snap-gauge and the 4th snap-gauge use state；
Fig. 4 is the cross-sectional view of the 4th snap-gauge in Fig. 3；
Fig. 5 is the cross-sectional view of the 4th snap-gauge of embodiment 2.
Figure label：1- cross-arm side connecting plates, 2- side of wire connecting plates, the first snap-gauges of 3-, the second snap-gauges of 4-, the first card slots of 5-,
The first hanging points of 6-, 7- third snap-gauges, the 4th snap-gauges of 8-, the second card slots of 9-, the second hanging points of 10-, 11- positioning screw holes, 12- jackscrews,
13- connectors, 14- connecting rods, 15- adjust lead screw, 16- internal thread lead screws, 17- rubber antiskid pads.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figures 1 to 4, the present invention includes being fixed on the first fixture of cross-arm side connecting plate 1 and being fixed on side of wire to connect
Second fixture of plate 2, the first fixture include 3 and second snap-gauge 4 of symmetrically arranged first snap-gauge, the first snap-gauge 3 and the second snap-gauge 4
On be respectively provided with the first card slot 5 and the first hanging point 6, the first fixture is splayed, specially：First snap-gauge 3 and the second snap-gauge 4 are close
The part of first hanging point 6 is ramp-like configuration, and the first hanging point 6 is rotatably connected on the notch position of the first card slot 5 by axis pin, the
Two fixtures include 7 and the 4th snap-gauge 8u of symmetrically arranged third snap-gauge, and the second card is respectively provided on third snap-gauge 7 and the 4th snap-gauge 8
The slot bottom of slot 9 and the second hanging point 10, the second card slot 9 is the ramp-like configuration to match with side of wire connecting plate 1, and the second hanging point 10 is logical
The notch position that axis pin is rotatably connected on the second card slot 9 is crossed, the first hanging point 6 and the second hanging point 10 are triangular structure, third card
Positioning screw hole 11 is set on plate 7 and the 4th snap-gauge 8, and 11 internal thread of positioning screw hole connects jackscrew 12, every group of first hanging point 6 and second
Two length adjustment mechanisms are set between hanging point 10；
Length adjustment mechanism includes sequentially connector 13, connecting rod 14, adjusts lead screw 15 and internal thread lead screw 16, connector 13
One end and 6 pin joint of the first hanging point, the other end and the connecting rod 14 of connector 13 are rotatablely connected, and connecting rod 14 and adjusting lead screw 15 are solid
Fixed connection, adjusts lead screw 15 and 16 screw-thread fit of internal thread lead screw, the pin joint of internal thread lead screw 16 and the second hanging point 10.
First snap-gauge 3, the second snap-gauge 4, the first hanging point 6, third snap-gauge 7, the 4th snap-gauge 8, the second hanging point 10 are that titanium closes
Golden material, connecting rod 14 are insulating bar.
Embodiment two
The present embodiment and the structure of embodiment one are essentially identical, unlike：As shown in figure 5, rubber is arranged in the slot bottom of the second card slot 9
Anti-skid bulge is arranged in the end face of glue non-slip mat 17, rubber antiskid pad 17（It is not shown）, rubber antiskid pad 17 can by gluing or
The mode of person's clamping is fixed in the second groove 9.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical scheme of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (6)
1. three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines, including it is fixed on the first of cross-arm side connecting plate
Fixture and the second fixture for being fixed on side of wire connecting plate, it is characterised in that：First fixture includes symmetrically arranged first card
Plate and the second snap-gauge are respectively provided with the first card slot and the first hanging point on first snap-gauge and the second snap-gauge, and the first hanging point passes through pin
Axis is rotatably connected on the notch position of the first card slot, and second fixture includes symmetrically arranged third snap-gauge and the 4th snap-gauge,
The second card slot and the second hanging point are respectively provided on the third snap-gauge and the 4th snap-gauge, the slot bottom of the second card slot is and side of wire connecting plate
The ramp-like configuration to match, the second hanging point are rotatably connected on the notch position of the second card slot, first hanging point by axis pin
And second be arranged length adjustment mechanism between hanging point.
2. three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines according to claim 1, feature exist
In：The length adjustment mechanism includes sequentially connector, connecting rod, adjusts lead screw and internal thread lead screw, the connector and the
One hanging point pin joint, the connector are rotatablely connected with connecting rod, and the connecting rod is fixedly connected with lead screw is adjusted, the adjusting silk
Bar coordinates with internal thread wire rod thread, the pin joint of the internal thread lead screw and the second hanging point.
3. three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines according to claim 1, feature exist
In：Two length adjustment mechanisms are set between every group of first hanging point and the second hanging point.
4. three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines according to claim 1, feature exist
In：First fixture and the second fixture are titanium alloy material, and the connecting rod is insulating bar.
5. three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines according to claim 1, feature exist
In：First fixture is that splayed, first snap-gauge and the second snap-gauge are arc close to the part of the first hanging point or incline
Ramp-like structure.
6. three V-type insulator chain special mould clamp of ± 1100kV DC power transmission lines according to claim 1, feature exist
In：It is respectively provided with positioning screw hole on the third snap-gauge and the 4th snap-gauge, jackscrew is threadedly coupled in the positioning screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810635934.0A CN108521100B (en) | 2018-06-20 | 2018-06-20 | Special fixture of 1100kV direct current transmission line trigeminy V type insulator chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810635934.0A CN108521100B (en) | 2018-06-20 | 2018-06-20 | Special fixture of 1100kV direct current transmission line trigeminy V type insulator chain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108521100A true CN108521100A (en) | 2018-09-11 |
| CN108521100B CN108521100B (en) | 2021-05-04 |
Family
ID=63428424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810635934.0A Active CN108521100B (en) | 2018-06-20 | 2018-06-20 | Special fixture of 1100kV direct current transmission line trigeminy V type insulator chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108521100B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123027A (en) * | 2021-11-24 | 2022-03-01 | 国网江苏省电力有限公司检修分公司 | Steel tube tower linear double-I-string clamp and operation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012095373A (en) * | 2010-10-22 | 2012-05-17 | Chugoku Electric Power Co Inc:The | Insulator maintenance inspection mounting fixture |
| CN103825217A (en) * | 2014-03-04 | 2014-05-28 | 国家电网公司 | Anti-tension triple-connected middle string clamp for 1,000kV ultrahigh-voltage power transmission line |
| CN203800477U (en) * | 2014-03-31 | 2014-08-27 | 贵阳供电局 | Clamping tool used for electriferous replacement of first insulator of power transmission line tension single chain at wire side |
| CN206117007U (en) * | 2016-10-27 | 2017-04-19 | 国家电网公司 | Connecting device is changed to insulator |
| CN208461331U (en) * | 2018-06-20 | 2019-02-01 | 国网河南省电力公司检修公司 | Three V-type insulator chain special mould clamp of ± 1100kV DC power transmission line |
-
2018
- 2018-06-20 CN CN201810635934.0A patent/CN108521100B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012095373A (en) * | 2010-10-22 | 2012-05-17 | Chugoku Electric Power Co Inc:The | Insulator maintenance inspection mounting fixture |
| CN103825217A (en) * | 2014-03-04 | 2014-05-28 | 国家电网公司 | Anti-tension triple-connected middle string clamp for 1,000kV ultrahigh-voltage power transmission line |
| CN203800477U (en) * | 2014-03-31 | 2014-08-27 | 贵阳供电局 | Clamping tool used for electriferous replacement of first insulator of power transmission line tension single chain at wire side |
| CN206117007U (en) * | 2016-10-27 | 2017-04-19 | 国家电网公司 | Connecting device is changed to insulator |
| CN208461331U (en) * | 2018-06-20 | 2019-02-01 | 国网河南省电力公司检修公司 | Three V-type insulator chain special mould clamp of ± 1100kV DC power transmission line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123027A (en) * | 2021-11-24 | 2022-03-01 | 国网江苏省电力有限公司检修分公司 | Steel tube tower linear double-I-string clamp and operation method thereof |
| CN114123027B (en) * | 2021-11-24 | 2024-03-01 | 国网江苏省电力有限公司检修分公司 | Steel pipe tower straight line double-I-string clamp and operation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108521100B (en) | 2021-05-04 |
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