CN103683109A - 220kV line L-LF type insulator string live replacement tool - Google Patents
220kV line L-LF type insulator string live replacement tool Download PDFInfo
- Publication number
- CN103683109A CN103683109A CN201310727821.0A CN201310727821A CN103683109A CN 103683109 A CN103683109 A CN 103683109A CN 201310727821 A CN201310727821 A CN 201310727821A CN 103683109 A CN103683109 A CN 103683109A
- Authority
- CN
- China
- Prior art keywords
- card
- fork
- yoke plate
- insulator string
- clamp
- 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.)
- Granted
Links
Images
Abstract
The invention relates to an insulator string live replacement technique, in particular to a 220kV line L-LF type insulator string live replacement tool which is mainly characterized in that a front clamp comprises a left clamp and a right clamp, the left clamp is open forked and comprises an outer fork clamp and an inner fork clamp, the inner fork clamp is positioned on the inner side face of the outer fork clamp, the inner fork clamp and the outer fork clamp are matched with a side stepped space of an LF type connecting plate and can be exactly clamped in the side stepped space in a sleeved manner to obtain enough fixed points and connection points in the stepped structure of the connecting plate, so that other auxiliary connection tools are omitted, and operators can perform equal potential mounting operation without entering an electric field. The 220kV line L-LF type insulator string live replacement tool is simple and convenient to operate, low in workload and high in operation efficiency, the equipment defect eliminating capacity of live operation is effectively improved, line outage time is shortened, and reliability of grid operation is improved.
Description
Technical field
The present invention relates to a kind of insulator string charged for replacement operation technique, particularly a kind of 220kV circuit L-LF pattern insulator string charged for replacement power tool.
Background technology
L-LF pattern refers to the assembly type of insulator string, and what the gold utensil at 220kV line tension duplex insulator two ends adopted is that L-type yoke plate and LF type yoke plate coordinate installation.LF type yoke plate title is rectangle yoke plate, and it applies extremely many on the line, but various informative, is mainly reflected in: rectangular slab, except four angles are connected with gold utensil, are also divided into and have handle hole and without handle hole, have hollow out and there is no hollow out on plate face.For hollow out pattern person, be also divided into two kinds of patterns of oval hollow out and circular hollow out.What the present invention is directed to is oval hollow out pattern LF type yoke plate, and it is to be mainly directly connected with double bundle conductor that side of wire was adopts the advantage of LF type yoke plate, need not additionally increase yoke plate, reduces the consumption of material.
Yet the design feature of the type yoke plate is: yoke plate dimensional space is little, is connected gold utensil, bolt, spring catch and has occupied most of space.To maintenance, bring very big inconvenience like this, especially live line working is difficult to effectively carry out especially, existing jig or need LF type yoke plate that enough fixing point or tie points are provided, the operating point that needs to provide abundant on instrument is to realize and being connected and fixing of yoke plate, therefore all cannot on LF type yoke plate, directly by insulated tension pole, connect and fix, the fastening means that also needing of having provides auxiliary, and operating personnel enters electric field and carries out equipotential fitting operation, make workload large, operating efficiency is low.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part and provide a kind of simple to operation, simple in structure effective, reduce workload, the 220kV circuit L-LF pattern insulator string charged for replacement power tool of increasing work efficiency.
The object of the invention is to realize by following approach:
220kV circuit L-LF pattern insulator string charged for replacement power tool, include front card, rear card, operation screw mandrel and insulated tension pole, the lower end of operation screw mandrel connects insulated tension pole, rear card is a kind of bent plate card, rearward end is connected with operation screw mandrel, its knot main points are, front card includes left side and yoke plate coupling part and right side and insulated tension pole coupling part, correspond to respectively left card and right card, left card is opening fork-shaped, include outer fork and interior fork, interior fork is positioned on the medial surface of outer fork, the formed fork pockets width of interior fork is greater than the thickness of LF type yoke plate, and the plate of interior fork is wide, be less than the minimum range between two gold utensils in LF type yoke plate vertical direction, the formed fork pockets width of outer fork is greater than the thickness that same bolted both sides gold utensil on LF type yoke plate adds LF type yoke plate, distance between wide and LF type yoke plate two attaching nuts of the plate of outer fork is adaptive, the curved structure of head of left card, is laterally penetrated with the pin-and-hole that can connect bayonet lock, the tail end of right card is a kind of prong groove, and the width of prong groove and insulated tension pole are adaptive, and are fixedly connected with insulated tension pole, in the junction of left card and right card, be provided with operation connecting portion.
The present inventor has found its side and tiny operating space thereof on LF type yoke plate, and the minor face of rectangle yoke plate is because having installed gold utensil, bolt, and the spatial form between it is rendered as stepped.This stepped space can be used as jig the strong point is installed, utilize the headroom position in rectangle minor face, front card is penetrated to installation, the cross section of interior fork and outer fork is a kind of " protruding " shape structure, just in time filled above-mentioned stepped space, using yoke plate plate thus as a strong point, using hollow out offside as the reverse strong point.Front card of the present invention takes full advantage of the stepped space that LF type yoke plate short side provides, the interior fork of left card just fork on the yoke plate between yoke plate minor face two attaching nuts, outer fork just in time can fork on the gold utensil face between two nuts, using nut as the strong point, the arc structure head of left card is positioned at the yoke plate centre position of hollow out, the pin-and-hole of head be just positioned at slotted eye in the middle of yoke plate below on, by connecting bayonet lock, realize the anti-support in this position, finally realization lifts right card and completes the lax of insulator string and change.
The operational method of described charged for replacement power tool is as follows:
First a kind of power tool as above is provided; The mounting points of yoke plate is the minor face place, outside of yoke plate, the nut that the above and below at minor face place has all been provided with gold utensil and gold utensil has been fixedly attached to yoke plate, and now, yoke plate, gold utensil and nut have just formed stepped space;
Card before operation on cross-arm: bayonet lock is pulled open, make left card in open socket state, then the operation connecting portion in the Yu Qianka centre position, termination of insulating bar is fixedly connected with;
Before being drawn by insulating bar, snap into the minor face place, outside that reaches LF type yoke plate, left card is inserted along the stepped space of LF type yoke plate, now the interior fork cover fork of left card is in the position of yoke plate, and outer fork overlaps fork in the position of gold utensil, and attaching nut can be withstood in the limit, outer of outer fork;
By insulating bar, pull bayonet lock, fork-join, in the pin-and-hole of front card, completes front card is arranged on LF type yoke plate,
Operation screw mandrel is fixed and is connected with insulated tension pole, and rear card is connected with operation screw mandrel, after completing on cross-arm, card and being connected of L-type yoke plate, then snap in insulated tension pole in the prong groove in the right card of front card by insulating bar, and connect latch;
Shake operation screw mandrel, in the left card of card, the card between fork and outer fork and gold utensil and attaching nut touched as the strong point in the past, and the bayonet lock point of card was as the anti-strong point in the past, promote insulated tension pole, and pull on front card and carry, thereby lax insulator string completes the replacing operation of insulator string.
The main innovate point of L-LF pattern insulator string charged for replacement power tool of the present invention is front card, it has adopted the stepped space of LF type yoke plate short side especially, front card can be effectively arranged on this yoke plate, tool construction is simple, and chosen especially the narrow and small and very difficult open space to be noted of yoke plate minor face, make instrument on LF type yoke plate, to obtain enough fixing points and tie point, thereby without other auxiliary connecting tools, do not need operating personnel to enter electric field and carry out equipotential fitting operation yet, simple to operation, workload is little, operating efficiency is high, effectively improved the ability of live line working abatement apparatus defect, reduce the line outage time, improve the reliability of operation of power networks.
The present invention can further be specially:
The pin-and-hole place of left dop portion is horizontally arranged with guide, and bayonet lock is arranged in this guide.
In guide, be provided with spacing to bayonet lock and prestressed spring and limit component are provided, bayonet lock is arranged in guide, and realizes the action of extracting therein and regaining, and bayonet lock end arranges connecting ring, so that operate with action bars.
The width of described right card and left card coupling part is greater than the distance between two attaching nuts, and the coupling part of left card and right card is from the arc structure of the wide transition of plate of the outside fork of this coupling part width of right card.
Like this, when left card inserts behind the stepped space of yoke plate, right card can be stuck in this attaching nut's outside, has limited moving left and right of front card, has improved installation and the operational stability of front card.
The interior fork of described front card is straight template card, and the head that the head of outer fork is also left card is arc structure, and described pin-and-hole is positioned at the leading section of arc structure, and the downside that can be positioned at LF type yoke plate slotted eye is along upper.
Like this, two strong points of front card and yoke plate are by the cross central line of the yoke plate that do not coexist, but with corner, in addition because the straight type of interior fork is constructed, make jig can comparatively easily when inserting, provide enough rotational angles when mounted, and take the interior fork of straight type as guide rail slips into stepped space, easy to operate, solved the installation question in narrow ladder space.
In sum, the selection of novelty of the present invention the stepped space of LF type yoke plate short side as the connection setting of jig, this stepped space is a narrow and small and very difficult open space to be noted, researched and developed thus the front card of charged for replacement power tool, it can obtain enough fixing points and tie point in this stepped space, without other auxiliary connecting tools, do not need operating personnel to enter electric field and carry out equipotential fitting operation yet, simple to operation, workload is little, operating efficiency is high, effectively improved the ability of live line working abatement apparatus defect, reduce the line outage time, improve the reliability of operation of power networks.
Accompanying drawing explanation
Figure 1 shows that the structural representation of L-LF pattern insulator string charged for replacement power tool of the present invention.
The structural representation of card before Figure 2 shows that in L-LF pattern insulator string charged for replacement power tool of the present invention.
The vertical view of card before Figure 3 shows that shown in Fig. 2.
Figure 4 shows that the side structure schematic diagram of LF type yoke plate, cutaway view when Fig. 5 is front card insertion LF type yoke plate.
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment
With reference to accompanying drawing 1:220kV circuit L-LF pattern insulator string charged for replacement power tool, include front card 1, rear card 2, operation screw mandrel 3 and insulated tension pole 4, the lower end of operation screw mandrel 3 connects insulated tension pole 4, rear card 2 is a kind of bent plate card, rearward end is connected with operation screw mandrel 3, described rear card 2, operation screw mandrel 3 and insulated tension pole 4 all adopt existing instrument: block afterwards 2 and include yoke plate side part 21 and screw mandrel side part 22, yoke plate side part 21 is opening fork-shaped, cover fork is on L-type yoke plate, the bottom of its opening fork-shaped is provided with the slope bottom land suitable with L-type triangle yoke plate 5, front end is provided with the pin-and-hole that can insert bayonet lock corresponding with handle hole on yoke plate, 22 of screw mandrel side parts are fixedly connected with operation screw mandrel 3.The lower end of insulated tension pole 4 is provided with equally distributed handle hole, can be according to the length adjustment of insulator string, and be connected to rear card 2.
Innovative point of the present invention is front card, is specially:
First with reference to accompanying drawing 4, as can be seen from Figure 4 LF type yoke plate 6, gold utensil 7, attaching nut 8 form a step shape jointly, see the shape that thick lines are sketched the contours of, thereby provide a stepped space, this space is as the space of erecting tools, be that this space is very narrow and small, position is very remote and not directly perceived, is therefore difficult to be noted.
With reference to accompanying drawing 2 and accompanying drawing 3, front card includes left side and yoke plate coupling part and right side and insulated tension pole coupling part, correspond to respectively left card 11 and right card 12, left card 11 is opening fork-shaped, include outer fork 13 and interior fork 14, interior fork 14 is straight template card structure, is positioned on the medial surface of outer fork 13.By reference to the accompanying drawings 5, the formed fork pockets width of interior fork 14 is greater than the thickness of LF type yoke plate and just in time can overlaps and is inserted on yoke plate 6, and the plate of interior fork 14 is wide, be less than the minimum range between two gold utensils 7 in LF type yoke plate vertical direction, and just in time can be between two gold utensils 7; The formed fork pockets width of outer fork 13 is greater than the thickness that same bolted both sides gold utensil 7 on LF type yoke plate 6 adds upper connective plate 6, and just in time can overlap in the aspect that is inserted in gold utensil 7, be positioned on the gold utensil step surface of gold utensil 7 and nut formation, in addition, the plate of outer fork 13 is wide and 6 liang of attaching nuts of LF type yoke plate between distance adaptive and just in time can be on same vertical face between two gold utensils.Like this, outer fork 13 and interior fork 14 covers are inserted in the stairstepping space of LF type yoke plate 6, just in time fill in full this stairstepping space, have formed two corresponding " protruding " shape pieces, and " protruding " the cross section structure schematic diagram of shape piece is shown in Fig. 5 shown in shade for it.
The curved structure of head 15 of the outer fork of left card, and be laterally penetrated with the pin-and-hole 16 that can connect bayonet lock, described pin-and-hole 16 is positioned at the leading section of arc structure, and the downside that can be positioned at LF type yoke plate 6 slotted eyes is along upper.Pin-and-hole 16 places of left dop portion 15 are horizontally arranged with guide, and bayonet lock is arranged in this guide.In guide, be provided with spacing to bayonet lock and prestressed spring and limit component are provided, bayonet lock is arranged in guide, and realizes the action of extracting therein and regaining, and bayonet lock end arranges connecting ring, so that operate with action bars.
The tail end of right card 12 is a kind of prong groove 17, and the width of prong groove 17 and insulated tension pole are adaptive, and are fixed and are connected by bayonet lock with insulated tension pole; In the junction of left card 11 and right card 12, be provided with operation connecting portion 18.As shown in Figure 2, the width of described right card 12 and left card 11 coupling parts is greater than the distance between two attaching nuts, the coupling part of left card 11 and right card 12 is from the arc structure of the wide transition of plate of the outside fork 13 of this coupling part width of right card 12, when left card inserts behind the stepped space of yoke plate, right card can be stuck in this attaching nut's outside.Summary of the invention part is shown in concrete operating process, repeats no more herein.
It is same as the prior art that the present invention does not state part.
Claims (4)
1.220kV circuit L-LF pattern insulator string charged for replacement power tool, include front card, rear card, operation screw mandrel and insulated tension pole, the lower end of operation screw mandrel connects insulated tension pole, rear card is a kind of bent plate card, rearward end is connected with operation screw mandrel, it is characterized in that, front card includes left side and yoke plate coupling part and right side and insulated tension pole coupling part, correspond to respectively left card and right card, left card is opening fork-shaped, include outer fork and interior fork, interior fork is positioned on the medial surface of outer fork, the formed fork pockets width of interior fork is greater than the thickness of LF type yoke plate, and the plate of interior fork is wide, be less than the minimum range between two gold utensils in LF type yoke plate vertical direction, the formed fork pockets width of outer fork is greater than the thickness that same bolted both sides gold utensil on LF type yoke plate adds LF type yoke plate, distance between wide and LF type yoke plate two attaching nuts of the plate of outer fork is adaptive, the curved structure of head of left card, is laterally penetrated with the pin-and-hole that can connect bayonet lock, the tail end of right card is a kind of prong groove, and the width of prong groove and insulated tension pole are adaptive, and are fixedly connected with insulated tension pole, in the junction of left card and right card, be provided with operation connecting portion.
2. 220kV circuit L-LF pattern insulator string charged for replacement power tool according to claim 1, is characterized in that, the pin-and-hole place of left dop portion is horizontally arranged with guide, and bayonet lock is arranged in this guide.
3. 220kV circuit L-LF pattern insulator string charged for replacement power tool according to claim 1, it is characterized in that, the width of described right card and left card coupling part is greater than the distance between two attaching nuts, and the coupling part of left card and right card is from the arc structure of the wide transition of plate of the outside fork of this coupling part width of right card.
4. 220kV circuit L-LF pattern insulator string charged for replacement power tool according to claim 1, it is characterized in that, the interior fork of described front card is straight template card, and the head that the head of outer fork is also left card is arc structure, and described pin-and-hole is positioned at the leading section of arc structure, and the downside that can be positioned at LF type yoke plate slotted eye is along upper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310727821.0A CN103683109B (en) | 2013-12-26 | 2013-12-26 | 220kV line L-LF type insulator string live replacement tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310727821.0A CN103683109B (en) | 2013-12-26 | 2013-12-26 | 220kV line L-LF type insulator string live replacement tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103683109A true CN103683109A (en) | 2014-03-26 |
| CN103683109B CN103683109B (en) | 2017-01-11 |
Family
ID=50319800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310727821.0A Active CN103683109B (en) | 2013-12-26 | 2013-12-26 | 220kV line L-LF type insulator string live replacement tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103683109B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337216A (en) * | 2015-11-26 | 2016-02-17 | 国网河南省电力公司检修公司 | Tool and method for realizing charged replacement of tension insulator of extra-high voltage earth electrode line |
| CN107706822A (en) * | 2017-11-15 | 2018-02-16 | 国家电网公司 | Equipotential suspension clamp changes instrument |
| CN108665986A (en) * | 2017-03-31 | 2018-10-16 | 国核电站运行服务技术有限公司 | Climbing robot for heat-transfer pipe of evaporator tube sheet |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08331741A (en) * | 1995-05-31 | 1996-12-13 | Asahi Electric Works Ltd | Impact load easing device for overhead line grasping portion and overhead line holding structure using this device |
| CN2912031Y (en) * | 2006-06-16 | 2007-06-13 | 冯海潮 | Live replacing device for strain 4-string insulator string |
| CN201263063Y (en) * | 2008-07-21 | 2009-06-24 | 云南电网公司曲靖供电局 | Tool for replacing straight-line simply connected double-string overhang insulator |
| CN101931181A (en) * | 2010-03-26 | 2010-12-29 | 福建省电力有限公司厦门电业局 | Strain tower double-hanging-point single-link-plate insulator chain ground potential live exchange device |
| CN202333612U (en) * | 2011-11-28 | 2012-07-11 | 江苏省电力公司无锡供电公司 | Tension-resistant china bottle replacement device |
| CN102664364A (en) * | 2012-03-21 | 2012-09-12 | 浙江省电力公司培训中心 | Universal broadsword fixture |
| CN202678834U (en) * | 2012-06-11 | 2013-01-16 | 重庆市电力公司检修分公司 | Apparatus and back card used for replacing insulator |
| CN203734208U (en) * | 2013-12-26 | 2014-07-23 | 国家电网公司 | L-LF type insulator string live replacement operation tool of 220kV line |
-
2013
- 2013-12-26 CN CN201310727821.0A patent/CN103683109B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08331741A (en) * | 1995-05-31 | 1996-12-13 | Asahi Electric Works Ltd | Impact load easing device for overhead line grasping portion and overhead line holding structure using this device |
| CN2912031Y (en) * | 2006-06-16 | 2007-06-13 | 冯海潮 | Live replacing device for strain 4-string insulator string |
| CN201263063Y (en) * | 2008-07-21 | 2009-06-24 | 云南电网公司曲靖供电局 | Tool for replacing straight-line simply connected double-string overhang insulator |
| CN101931181A (en) * | 2010-03-26 | 2010-12-29 | 福建省电力有限公司厦门电业局 | Strain tower double-hanging-point single-link-plate insulator chain ground potential live exchange device |
| CN202333612U (en) * | 2011-11-28 | 2012-07-11 | 江苏省电力公司无锡供电公司 | Tension-resistant china bottle replacement device |
| CN102664364A (en) * | 2012-03-21 | 2012-09-12 | 浙江省电力公司培训中心 | Universal broadsword fixture |
| CN202678834U (en) * | 2012-06-11 | 2013-01-16 | 重庆市电力公司检修分公司 | Apparatus and back card used for replacing insulator |
| CN203734208U (en) * | 2013-12-26 | 2014-07-23 | 国家电网公司 | L-LF type insulator string live replacement operation tool of 220kV line |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337216A (en) * | 2015-11-26 | 2016-02-17 | 国网河南省电力公司检修公司 | Tool and method for realizing charged replacement of tension insulator of extra-high voltage earth electrode line |
| CN108665986A (en) * | 2017-03-31 | 2018-10-16 | 国核电站运行服务技术有限公司 | Climbing robot for heat-transfer pipe of evaporator tube sheet |
| CN107706822A (en) * | 2017-11-15 | 2018-02-16 | 国家电网公司 | Equipotential suspension clamp changes instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103683109B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103683110A (en) | L-LF type insulator string ground potential live replacement method | |
| CN103683109A (en) | 220kV line L-LF type insulator string live replacement tool | |
| CN203339618U (en) | Suspended wire clamp | |
| CN203562514U (en) | Anti-drop ground clamp | |
| CN203734208U (en) | L-LF type insulator string live replacement operation tool of 220kV line | |
| CN204732555U (en) | A kind of busbar circuit Universal hook | |
| CN203275477U (en) | Terminal box | |
| CN103683107B (en) | Front clamp for LF type insulator string live replacement | |
| CN202126896U (en) | Pin type ceramic insulator | |
| CN203734206U (en) | Front clamp for live changing operation of LF type insulator string | |
| CN203397897U (en) | Capacitor shell and refrigerator using same | |
| CN103683108A (en) | LF type connecting plate fixture for 220kV line insulator string live replacement | |
| CN204694751U (en) | A kind of three-phase electric energy meter connector | |
| CN204464904U (en) | Insulating tube type power transmission busbar | |
| CN205791271U (en) | Fixing sleeve for wire stripper | |
| CN210693152U (en) | Fixing part for telegraph pole electric box | |
| CN205159539U (en) | Earth connection mounting structure | |
| CN204030428U (en) | A kind of parallel groove clamp insulating shield special isolation mounting rod head | |
| CN202797306U (en) | Clamping type cable | |
| CN202940343U (en) | Circuit three-connection wiring fitting with grounding ring | |
| CN219659109U (en) | Multi-occasion grounding wire clamp | |
| CN210725451U (en) | Electrostatic grounding device | |
| CN204189473U (en) | U-shaped copper bar | |
| CN102412452B (en) | Wiring card of shortcut electric wire | |
| CN220822443U (en) | Power cable fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |