CN203456796U - Broadsword fixture for replacing single insulator of duplex insulator string during power failure - Google Patents

Broadsword fixture for replacing single insulator of duplex insulator string during power failure Download PDF

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Publication number
CN203456796U
CN203456796U CN201320498915.0U CN201320498915U CN203456796U CN 203456796 U CN203456796 U CN 203456796U CN 201320498915 U CN201320498915 U CN 201320498915U CN 203456796 U CN203456796 U CN 203456796U
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China
Prior art keywords
insulator
machete
broadsword
power failure
duplex
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Active
Application number
CN201320498915.0U
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Chinese (zh)
Inventor
吴发献
张礼宾
汪勇军
曹长根
章伟清
郑泉荣
黄中华
方炯
孙黎鹏
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State Grid Corp of China SGCC
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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State Grid Corp of China SGCC
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201320498915.0U priority Critical patent/CN203456796U/en
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Publication of CN203456796U publication Critical patent/CN203456796U/en
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Abstract

The utility model discloses a broadsword fixture for replacing a single insulator of a duplex insulator string during power failure. The broadsword fixture comprises a broadsword clamp, a U-shaped ring, a first connection plate, a first screw rod, an enclosed clamp, a second screw rod and a second connection plate. The broadsword fixture is characterized in that the above components are in end-to-end connection in sequence. The beneficial effects of the broadsword fixture are that: when replacing any porcelain bottle, a line maintainer does not need to loosen the whole string of porcelain bottles, and the replacing work is done by just combining the broadsword clamp with the enclosed clamp, so that operability of the work is enhanced, time of working on the higher levels is greatly reduced, work safety is improved, and the enclosed clamp is no longer limited during usage. Besides, the broadsword fixture is light in operation, good in universality, and safe and reliable.

Description

For having a power failure, change the machete jig of twin insulator strings monolithic insulator
Technical field
The utility model relates to a kind of general utility tool during for the operation of transmission line interruption maintenance, a kind of general machete jig specifically, the replacing of monolithic (or multi-disc) arbitrarily in twin insulator strings while can be applicable to transmission line interruption maintenance.
Background technology
In transmission line insulator arrangement, glass insulator with its resistance to electric arc, vibration resistance, mechanical strength is high, physical dimension is little, the advantage such as lightweight and being widely used on ultra-high-tension power transmission line.In the high-voltage fence of Hangzhou, more than 95% strain insulator-string is all used glass insulator according to statistics.And in recent years, along with the increase year by year of Hangzhou grid power load, new line is with the speed increment of annual up to a hundred kilometers, and steel tower quantity is increasing.Intricate (high mountain, the area with more lightning activities) of (the thundering) complicated and changeable of weather, landform, make the probability that transmission line is struck by lightning be the trend increasing year by year, the quantity that glass insulator generation is revealed is thereupon corresponding increasing also, therefore the insulator of changing thunderbolt, breakage is hundreds of, in order not affect transmission line, normally move, just must change in time at short notice null value, low value or damaged insulator.Conventionally, change the insulator of a certain of strain insulator duplex glass insulator strings (first of non-line order or load order) and a certain pollution flashover of straight line duplex glass insulator strings or self-destruction, need to use the instruments such as closed type fixture, cucurbit to change; When replacing strain insulator duplex glass insulator is being got lines crossed first of order (load order) or the whole string of strain insulator duplex glass insulator strings, need to use the instruments such as cucurbit, bottle-holding rack to change; But the glass insulator type kind adopting in circuit is at present various, and its size of insulator steel cap of same model, same producer, different batches is also variant, make the existing closed type fixture may be because jig jaw is excessive or the too small steel cap that cannot block insulator in changing insulator process, thereby cannot change.And because the length of closed type fixture is certain, closed type fixture can only block at most four glass insulator length, cause spaced two insulators need repeat to change twice and just can complete, cause operating personnel high-altitude labour intensity large, dangerous high.Simultaneously, because closed type fixture is that steel cap by glass insulator carrys out load, line order (load order) first insulator of insulator string cannot be changed, cause the use of closed type fixture to be greatly limited, versatility practicality is had a greatly reduced quality.And the replacing of Insulators mostly need be used cucurbit, be dragged the heavinesses such as bottle stand and large volume instrument, maintainer carries inconvenience, has increased the complexity more changing jobs.
Summary of the invention
To be solved in the utility model is the problems referred to above that prior art exists, and aims to provide a kind of simple in structure, practicality and high efficiency, easy to operate, the instrument that uses the safe and applicable any monolithic of disposable replacing twin insulator strings or multi-disc when line outage is overhauled.
For addressing the above problem, the utility model is by the following technical solutions: the machete jig of changing twin insulator strings monolithic insulator for having a power failure, comprise machete card, U-loop, the first connecting plate, the first leading screw, closed type fixture, the second leading screw and the second connecting plate, it is characterized in that above-mentioned each parts join end to end successively; Described machete card 1 is provided with stress hole 101 for connecting described U-loop 2, for connecting manhole 105 and main location hole 103 and/or the auxiliary location hole 104 of described cross-arm side duplex plate 8; Bolt 10 is selected one and is penetrated described main location hole 103 or auxiliary location hole 104, and coordinates with the side of described cross-arm side duplex plate 8.
The machete jig of changing twin insulator strings monolithic insulator for having a power failure of the present utility model, during use, machete card is arranged on cross-arm side duplex plate, one end of the second connecting plate is fixed on cross-arm side duplex plate by joint, make closed type fixture be placed in after the insulator being replaced simultaneously.Tighten up and regulate first, second leading screw, make bolt and duplex plate side and connecting plate stressed, by tightening up of leading screw, the spacing between machete card and closed type fixture is shortened gradually, insulator string can be relaxed state, thereby reaches the object that maintainer changes insulator.Reverse adjusting screw after replacing completes, the new insulator string of installing is stressed gradually, load transfer, completely stressed after, the instrument such as dismountable jig, has more changed jobs.
As improvement of the present utility model, described machete card is provided with stress hole for connecting described U-loop, for connecting manhole and the main location hole of cross-arm side duplex plate, described main location hole penetrates bolt, and described bolt coordinates and forms stressed fulcrum with the side of described cross-arm side duplex plate.
As further improvement of the utility model, on described machete card, be also provided with an auxiliary location hole, described bolt is selected one and is penetrated described main location hole or auxiliary location hole coordinates the stressed fulcrum of formation with the diverse location place of described cross-arm side duplex plate side.Said structure is to consider the multiple pattern of duplex plate, and the same yoke plate gauge size disunity of each producer's processing, and machete card adopts the diplopore design of main location hole, auxiliary location hole.The yoke plate that has guaranteed all models all adjustable, location, and the phenomenon that there will not be jig card arm and other gold utensils to collide is installed.
As of the present utility model, further improve, the upper and lower surface of described machete card offers groove, can alleviate the own wt of machete card again.
As of the present utility model, further improve, described machete card adopts split type two symmetric designs again, thereby guarantees that machete card is closely connected with yoke plate, does not rock after stressed, and load is stablized.
As of the present utility model, further improve, upper and lower two of described machete card is circular-arc design, with this, strengthens the intensity of machete card again, the distortion that opposing Yin Lali causes.
As of the present utility model, further improve, described machete card adopts the solid forging of LC4 aluminum alloy materials, further improves the mechanical strength of jig.
The beneficial effects of the utility model are:
1, due to unique structural design, line maintenance personnel are changing the whole string porcelain vase that need not relax when strain insulator duplex glass insulator is being got lines crossed first porcelain vase of order (load order), only machete card need be combined to complete more with closed type fixture and change jobs, strengthened the operability of operation, greatly shorten the work high above the ground time, improved operational security; Make closed type fixture no longer limited in use.
2, the operating feature when changing duplex glass insulator strings, maintainer uses this instrument can change the insulator of duplex any type, comprise twin insulator strings any one or more pieces, expanded the usage range of operation.
3, because the utility model tool operation is light, versatility is good, safe and reliable, reduced the activity duration on maintainer's bar, reduced the danger of work high above the ground, will apply and establish solid foundation for it.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is that the utility model is for the structural representation of the machete jig of the replacing twin insulator strings monolithic insulator that has a power failure.
Fig. 2 is the structural representation of the utility model machete card.
Fig. 3 is use view of the present utility model.
Embodiment
With reference to Fig. 1, the machete jig of changing twin insulator strings monolithic insulator for having a power failure of the present utility model, comprise machete card 1, U-loop 2, the first connecting plate 3, the first leading screw 4, closed type fixture 5, the second leading screw 6 and the second connecting plate 7, above-mentioned each parts join end to end successively.
Described machete card 1 adopts split type upper and lower two symmetric designs.Described machete card adopts the solid forging of LC4 aluminum alloy materials, further improves the mechanical strength of jig.
In conjunction with Fig. 2, described machete card 1 is provided with stress hole 101 for connecting described U-loop 2, for connecting manhole 105, main location hole 103 and the auxiliary location hole 104 of cross-arm side duplex plate 8.Bolt 10 is selected and main location hole 103 or rear a cooperation with the diverse location place of described cross-arm side duplex plate 8 sides of auxiliary location hole 104 that penetrates upper and lower two of described machete card is formed stressed fulcrum, the duplex plate that has guaranteed all models all can be installed, locates and regulate, and the phenomenon that there will not be jig card arm and other gold utensils to collide.
The upper and lower surface of described machete card 1 offers groove 102, to alleviate the own wt of machete card.
In conjunction with Fig. 3, operation principle of the present utility model is as follows:
1, with bolt 11, penetrate successively upper slice manhole 105 of machete card 1, the manhole 105 of the manhole of cross-arm side duplex plate 8 and lower machete card 1 is rear screws with nut; With bolt 10, penetrate successively that the location hole 103 of fluctuating plate machete card is rear to be screwed with nut, make bolt 10 be placed in cross-arm side duplex plate 8 side; With bolt 12, penetrate successively that the stress hole 101 of upper slice machete card stress hole 101, U-loop 2 and lower machete card 1 is rear to be screwed with nut; The length of adjusting bolt 10, bolt 11 and bolt 12, keeps machete card card arm and duplex plate level.
2, after U-loop 2, connect successively the first leading screw 4, closed type fixture 5, the second leading screw 6 and the second connecting plate 7, by joint 13, the other end of the second connecting plate 7 is connected to duplex plate 8; Make closed type fixture 5 be placed in after the insulator being replaced simultaneously.
3, U-loop 2 is connected with cucurbit.
4, regulate a pair of leading screw 4 and 6, machete card 1 rotates around its manhole 105, and bolt 10 forms stressed fulcrum with duplex plate 8, and the stress hole 101 of machete card 1 is connected with screw mandrel by U-loop 2, tighten up screw mandrel 4 and 6 simultaneously and make insulator 9 strings be relaxed state, maintainer starts to change insulator.
5, changed a pair of leading screw 4 of rear reverse adjusting and 6, made the new insulator string of installing stressed gradually, completed load transfer process, completely stressed after, the instrument such as dismountable jig, has more changed jobs.
Should be understood that: above-described embodiment is just to explanation of the present utility model, rather than to restriction of the present utility model, any utility model not exceeding within the scope of the utility model connotation is created, within all falling into protection range of the present utility model.

Claims (4)

1. for having a power failure, change the machete jig of twin insulator strings monolithic insulator, comprise machete card (1), U-loop (2), the first connecting plate (3), the first leading screw (4), closed type fixture (5), the second leading screw (6) and the second connecting plate (7), it is characterized in that above-mentioned each parts join end to end successively; Described machete card (1) is provided with stress hole (101) for connecting described U-loop (2), for connecting manhole (105) and main location hole (103) and/or the auxiliary location hole (104) of described cross-arm side duplex plate (8); A bolt (10) is selected one and is penetrated described main location hole (103) or auxiliary location hole (104), and coordinates with the side of described cross-arm side duplex plate (8).
2. the machete jig of changing twin insulator strings monolithic insulator for having a power failure as claimed in claim 1, is characterized in that the surface of described machete card (1) offers groove (102).
3. as claim 1 or 2, for having a power failure, change the machete jig of twin insulator strings monolithic insulator as described in any one, it is characterized in that described machete card (1) adopts split type upper and lower two symmetric designs.
4. the machete jig of changing twin insulator strings monolithic insulator for having a power failure as claimed in claim 3, is characterized in that upper and lower two described of machete card (1) is circular-arc design.
CN201320498915.0U 2013-08-15 2013-08-15 Broadsword fixture for replacing single insulator of duplex insulator string during power failure Active CN203456796U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320498915.0U CN203456796U (en) 2013-08-15 2013-08-15 Broadsword fixture for replacing single insulator of duplex insulator string during power failure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320498915.0U CN203456796U (en) 2013-08-15 2013-08-15 Broadsword fixture for replacing single insulator of duplex insulator string during power failure

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201602A (en) * 2014-07-25 2014-12-10 国网上海市电力公司 Charged replacement method for whole string of insulators of ultra-high-voltage transmission line, and hardware fitting thereof
CN104201606A (en) * 2014-07-25 2014-12-10 国网上海市电力公司 Separating clamp for 500KV strain insulator string
CN105932599A (en) * 2016-06-17 2016-09-07 国网湖南省电力公司带电作业中心 Tool set capable of replacing insulator chain of ultra-high-voltage transmission line under electrified state and use method for tool set
CN106300141A (en) * 2016-09-23 2017-01-04 国网湖北省电力公司检修公司 A kind of isolator hot-line replacing instrument and method
CN108462099A (en) * 2018-02-27 2018-08-28 国家电网公司 One kind ± 800kV extra high voltage line double-linkage double-hanging-point pendulous string isolator replacing options

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201602A (en) * 2014-07-25 2014-12-10 国网上海市电力公司 Charged replacement method for whole string of insulators of ultra-high-voltage transmission line, and hardware fitting thereof
CN104201606A (en) * 2014-07-25 2014-12-10 国网上海市电力公司 Separating clamp for 500KV strain insulator string
CN104201602B (en) * 2014-07-25 2016-08-31 国网上海市电力公司 A kind of UHV transmission line bunch of insulator charged for replacement method and gold utensil thereof
CN105932599A (en) * 2016-06-17 2016-09-07 国网湖南省电力公司带电作业中心 Tool set capable of replacing insulator chain of ultra-high-voltage transmission line under electrified state and use method for tool set
CN106300141A (en) * 2016-09-23 2017-01-04 国网湖北省电力公司检修公司 A kind of isolator hot-line replacing instrument and method
CN108462099A (en) * 2018-02-27 2018-08-28 国家电网公司 One kind ± 800kV extra high voltage line double-linkage double-hanging-point pendulous string isolator replacing options

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