CN103683109B - 220kV line L-LF type insulator string live replacement tool - Google Patents
220kV line L-LF type insulator string live replacement tool Download PDFInfo
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- CN103683109B CN103683109B CN201310727821.0A CN201310727821A CN103683109B CN 103683109 B CN103683109 B CN 103683109B CN 201310727821 A CN201310727821 A CN 201310727821A CN 103683109 B CN103683109 B CN 103683109B
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- card
- fork
- yoke plate
- clamp
- width
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- 239000012212 insulator Substances 0.000 title claims abstract description 21
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 22
- 239000010931 gold Substances 0.000 claims description 22
- 229910052737 gold Inorganic materials 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 230000005684 electric field Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Electric Cable Installation (AREA)
- Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
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 chain charged for replacement operation technique, particularly a kind of 220kV circuit L-LF pattern insulator chain charged for replacement power tool.
Background technology
L-LF pattern refers to that the assembly type of insulator chain, the i.e. gold utensil at the sub-two ends of 220kV line tension twin insulator use L-type yoke plate and LF type yoke plate carries out coordinating installation.LF type yoke plate title is rectangle yoke plate, and it applies the most on the line, but various informative, is mainly reflected in: rectangular slab, on plate face in addition to four angles are connected with gold utensil, has been also divided into handle hole and without handle hole, has had hollow out and do not have hollow out.For hollow out pattern person, it is also divided into oval hollow out and circular two kinds of patterns of hollow out.The present invention is directed oval hollow out pattern LF type yoke plate, side of wire uses the advantage of LF type yoke plate mainly can directly be connected with double bundle conductor, need not additionally increase yoke plate, reduces the consumption of material.
But the construction features of the type yoke plate is: yoke plate dimensional space is little, connected gold utensil, bolt, spring catch occupy major part space.So bring very big inconvenience to maintenance, especially livewire work is difficult to effectively carry out especially, existing fixture or need LF type yoke plate to provide enough fixing points or junction point, the operating point needing to provide on instrument abundant with the connection realized with yoke plate and is fixed, the most all directly cannot be attached by insulated tension pole on LF type yoke plate and fix, the fastening means that it is also required to provide auxiliary having, and operating personnel enters electric field and carries out isoelectric level installation operation, making workload big, operating efficiency is low.
Summary of the invention
There is provided in place of it is an object of the invention to overcome the deficiencies in the prior art a kind of simple to operation, simple in construction effective, reduces workload, improves the 220kV circuit L-LF pattern insulator chain charged for replacement power tool of work efficiency.
It is an object of the invention to be realized by following approach:
220kV circuit L-LF pattern insulator chain 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 is characterized by, front card includes left side and yoke plate coupling part and right side and insulated tension pole coupling part, correspond to left card and right card respectively, left card is opening fork-shaped, include outer fork and interior fork, interior fork is positioned on the medial surface of outer fork, the fork pockets width that interior fork is formed is more than the thickness of LF type yoke plate, and the plate width of interior fork is less than the minimum range between two gold utensils in LF type yoke plate vertical direction；The fork pockets width that outer fork is formed adds the thickness of LF type yoke plate more than same bolted both sides gold utensil on LF type yoke plate；The plate width of outer fork distance then and between LF type yoke plate two attaching nut is adaptive；The curved structure of head of left card, extends transversely through the pin-and-hole that can connect bayonet lock；The tail end of right card is in a kind of prong groove, and the width of prong groove is adaptive with insulated tension pole, and fixing with insulated tension pole is connected；The junction of left card and right card is provided with operation connecting portion.
The present inventor is found that its side and tiny working place thereof on LF type yoke plate, and the minor face of rectangle yoke plate is because being mounted with gold utensil, bolt, and the spatial form between it is rendered as stepped.The strong point can be installed as fixture in this stepped space, i.e. utilize the headroom position in rectangle minor face, front card is penetrated installation, the cross section of interior fork and outer fork is in a kind of " convex " shape structure, just it is filled with above-mentioned stepped space, thus using yoke plate plate as a strong point, using hollow out offside as the reverse strong point.Before of the present invention, card takes full advantage of the stepped space that LF type yoke plate short side is provided, on the interior fork just fork of left card yoke plate between yoke plate minor face two attaching nut, outer fork the most just can be on fork gold utensil face between two nuts, using nut as the strong point, the arc structure head of left card is then positioned at the yoke plate centre position of hollow out, the pin-and-hole of head be then located just at slotted eye in the middle of yoke plate following on, the counter support in this position is realized by connecting bayonet lock, finally realize lifting right card and completing insulator chain to be relaxed and changes.
The operational method of described charged for replacement power tool is as follows:
First a kind of power tool as above is provided；The mount point of yoke plate is at the outside shorter side of yoke plate, at minor face above and below be mounted on gold utensil and gold utensil be fixedly attached to the nut of yoke plate, now, yoke plate, gold utensil and nut are the formation of stepped space；
Cross-arm blocks before operation: bayonet lock is pulled open so that left card is in open socket state, is then connected fixing with the operation connecting portion in front card centre position for the termination of insulating bar；
Before being drawn by insulating bar, card arrives the outside shorter side of LF type yoke plate, left card is inserted along the stepped space of LF type yoke plate, the interior fork set fork of the most left card is in the position of yoke plate, and outer fork then overlaps to be pitched in the position of gold utensil, and the outer edgewise of outer fork then can withstand attaching nut；
Pulling bayonet lock by insulating bar, fork-join, in the pin-and-hole of front card, completes to be arranged on by front card on LF type yoke plate,
Being fixedly connected with insulated tension pole by operation screw mandrel, and be attached with operation screw mandrel by rear card, after completing on cross-arm, card and the connection of L-type yoke plate, blocked in the prong groove in right card before then being snapped in by insulated tension pole by insulating bar, and connect latch；
Shake operation screw mandrel, in the left card blocked in the past, the card between fork and outer fork and gold utensil and attaching nut touches as the strong point, and the bayonet lock point of card was as counter support point in the past, promote insulated tension pole, and carry on card before pulling, thus lax insulator chain, complete the replacing operation of insulator chain.
The main innovation point of L-LF pattern insulator chain charged for replacement power tool of the present invention is front card, it particularly have employed the stepped space of LF type yoke plate short side, front card can be effectively arranged on this yoke plate, tool construction is simple, and particularly have chosen that yoke plate minor face is narrow and small and the very difficult open space to be noted, make instrument can obtain enough fixing points and junction point on LF type yoke plate, thus without other auxiliary connecting tools, enter electric field also without operating personnel and carry out isoelectric level installation operation, simple to operation, workload is little, working performance is high, it is effectively increased the ability of livewire work abatement apparatus defect, reduce the line outage time, improve the reliability of operation of power networks.
The present invention can further particularly as follows:
Being horizontally arranged with guide at the pin-and-hole of left card head, bayonet lock is positioned in this guide.
Being provided with spacing to bayonet lock in guide and provide prestressed spring and limit component, bayonet lock is arranged in guide, and realizes the action extracted wherein and regain, and bayonet lock end arranges connection ring, in order to operate with action bars.
The width of described right card and left card coupling part is then wider than, in the plate from this outside fork of coupling part width of right card, the arc structure crossed more than the distance between two attaching nuts, left card with the coupling part of right card.
So, after left card inserts the stepped space of yoke plate, right card can be stuck in the outside of this attaching nut, and that blocks before limiting moves left and right, and improves installation and the operational stability of front card.
Before described, the interior fork of 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 can be positioned at the downside of LF type yoke plate slotted eye along upper.
So, front card and the two of yoke plate strong points by different on the cross central line of yoke plate, but with corner, straight type additionally, due to interior fork constructs, fixture can be relatively easy to when mounted when inserting provides enough rotational angle, and slip into stepped space with the interior fork of straight type for guide rail, and easy to operate, solve the installation question in narrow ladder space.
In sum, the stepped space connection setting as fixture that have selected LF type yoke plate short side of novelty of the present invention, this stepped space is a narrow and small and very difficult open space to be noted, thus have developed the front card of charged for replacement power tool, it can obtain enough fixing points and junction point in this stepped space, without other auxiliary connecting tools, enter electric field also without operating personnel and carry out isoelectric level installation operation, simple to operation, workload is little, working performance is high, it is effectively increased the ability of livewire work abatement apparatus defect, reduce the line outage time, improve the reliability of operation of power networks.
Accompanying drawing explanation
Fig. 1 show the structural representation of L-LF pattern insulator chain charged for replacement power tool of the present invention.
The structural representation that Fig. 2 blocks before showing in L-LF pattern insulator chain charged for replacement power tool of the present invention.
Fig. 3 show the top view of card before shown in Fig. 2.
Fig. 4 show the side structure schematic diagram of LF type yoke plate, and Fig. 5 blocks sectional view when inserting LF type yoke plate before being.
Below in conjunction with specific embodiment, the present invention is described further.
Detailed description of the invention
1:220kV circuit L-LF pattern insulator chain charged for replacement power tool referring to the drawings, card 1 before including, 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 use existing instrument: rear card 2 includes yoke plate side part 21 and screw mandrel side part 22, yoke plate side part 21 is opening fork-shaped, set 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 be inserted into bayonet lock corresponding with handle hole on yoke plate；Screw mandrel side part 22 is then fixing with operation screw mandrel 3 to be connected.The lower end of insulated tension pole 4 is provided with equally distributed handle hole, according to the length adjustment of insulator chain, and can block 2 after being connected to.
The innovative point of the present invention is front card, particularly as follows:
With reference first to accompanying drawing 4, as can be seen from Figure 4 LF type yoke plate 6, gold utensil 7, attaching nut 8 are collectively forming a step shape, see the shape that thick lines are sketched the contours of, thus provide a stepped space, this space is as the space of installation tool, simply this space is the narrowest and small, and position is the remotest and directly perceived, is therefore difficult to be noted.
Referring to the drawings 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 left card 11 and right card 12 respectively, left card 11 is in opening fork-shaped, include outer fork 13 and interior fork 14, interior fork 14, in straight template card structure, is positioned on the medial surface of outer fork 13.In conjunction with accompanying drawing 5, the fork pockets width that interior fork 14 is formed just can overlap be inserted on yoke plate 6 more than the thickness of LF type yoke plate, and the plate of interior fork 14 is wide less than minimum range between two gold utensils 7 in LF type yoke plate vertical direction, and just can be between two gold utensils 7；The fork pockets width that outer fork 13 is formed adds the thickness of upper connective plate 6 more than same bolted both sides gold utensil 7 on LF type yoke plate 6, and just can overlap in the aspect being inserted in gold utensil 7, it is positioned on the gold utensil step surface of gold utensil 7 and nut formation, it addition, the wide distance then and between 6 liang of attaching nuts of LF type yoke plate of the plate of outer fork 13 adaptive and just can be on same vertical face between two gold utensils.So, outer fork 13 and interior fork 14 set are inserted in the stairstepping space of LF type yoke plate 6, just fill in this stairstepping space full, define corresponding two " convex " shape block, and " convex " the cross section structure schematic diagram of shape block is in Fig. 5 shown in shade for it.
The curved structure of head 15 of the outer fork of left card, and extend transversely through 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 can be positioned at the downside of LF type yoke plate 6 slotted eye along upper.Being horizontally arranged with guide at the pin-and-hole 16 of left card head 15, bayonet lock is positioned in this guide.Being provided with spacing to bayonet lock in guide and provide prestressed spring and limit component, bayonet lock is arranged in guide, and realizes the action extracted wherein and regain, and bayonet lock end arranges connection ring, in order to operate with action bars.
The tail end of right card 12 is in a kind of prong groove 17, and the width of prong groove 17 is adaptive with insulated tension pole, and is fixedly connected by bayonet lock with insulated tension pole；Operation connecting portion 18 it is provided with in the junction of left card 11 and right card 12.As shown in Figure 2, the width of described right card 12 and left card 11 coupling part is more than the distance between two attaching nuts, left card 11 is then wider than, in the plate from this outside fork of coupling part width 13 of right card 12, the arc structure crossed with the coupling part of right card 12, after left card inserts the stepped space of yoke plate, right card can be stuck in the outside of this attaching nut.Summary is shown in concrete operating process, and here is omitted.
The not described part of the present invention is same as the prior art.
Claims (2)
1.220kV circuit L-LF pattern insulator chain 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 left card and right card respectively, left card is opening fork-shaped, include outer fork and interior fork, interior fork is positioned on the medial surface of outer fork, the fork pockets width that interior fork is formed is more than the thickness of LF type yoke plate, and the plate width of interior fork is less than the minimum range between two gold utensils in LF type yoke plate vertical direction；The fork pockets width that outer fork is formed adds the thickness of LF type yoke plate more than same bolted both sides gold utensil on LF type yoke plate；The plate width of outer fork distance then and between LF type yoke plate two attaching nut is adaptive；The curved structure of head of left card, extends transversely through the pin-and-hole that can connect bayonet lock；The tail end of right card is in a kind of prong groove, and the width of prong groove is adaptive with insulated tension pole, and fixing with insulated tension pole is connected；The junction of left card and right card is provided with operation connecting portion；
Being horizontally arranged with guide at the pin-and-hole of left card head, bayonet lock is positioned in this guide；The width of described right card and left card coupling part is then wider than, in the plate from this outside fork of coupling part width of right card, the arc structure crossed more than the distance between two attaching nuts, left card with the coupling part of right card.
220kV circuit L-LF pattern insulator chain charged for replacement power tool the most according to claim 1, it is characterized in that, before described, the interior fork of 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 of LF type yoke plate slotted eye can be positioned at 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 CN103683109A (en) | 2014-03-26 |
| CN103683109B true CN103683109B (en) | 2017-01-11 |
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| 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 |
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| CN (1) | CN103683109B (en) |
Families Citing this family (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 |
| CN108665986B (en) * | 2017-03-31 | 2020-10-27 | 国核电站运行服务技术有限公司 | Crawling robot for heat transfer pipe plate of evaporator |
| CN107706822A (en) * | 2017-11-15 | 2018-02-16 | 国家电网公司 | Equipotential suspension clamp changes instrument |
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| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103683109A (en) | 2014-03-26 |
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