CN201230166Y - Tool for replacing anti-tension whole string insulator - Google Patents
Tool for replacing anti-tension whole string insulator Download PDFInfo
- Publication number
- CN201230166Y CN201230166Y CNU2008200814372U CN200820081437U CN201230166Y CN 201230166 Y CN201230166 Y CN 201230166Y CN U2008200814372 U CNU2008200814372 U CN U2008200814372U CN 200820081437 U CN200820081437 U CN 200820081437U CN 201230166 Y CN201230166 Y CN 201230166Y
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- Prior art keywords
- card
- insulator
- block
- tool
- tie
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Abstract
A tool for replacing an entire string of strain insulator comprises a front block (7), a back block (2), a lifting guide screw and an adjustable insulating pulling plate. The tool is characterized in that the front block (7) consists of two symmetrical principal parts which are connected by a bolt (11) through a screw at the lower protruding part of the front block. The two principal parts form a clamping groove (8). The two ends of the front block are respectively provided with a rotary joint (9) revolvably. The left part and the right part of the back block (2) are connected revolvably by a connecting sleeve (4) and a bolt (3) which are at the connection part of the back block. The shape with a concave inside and a convex top is formed. The middle part of the back block (2) is provided with a rotary sleeve (5). The two ends of the back block are provided with a rotary joint (1). The combination of the front block, the back block, the insulating puling plate and the lifting guide screw is adopted to form the tool for replacing the entire string of strain insulator, which ensures the safety of operators and does not influence the force and the structure relationship between the insulator string to be replaced and the insulator string which does not have to be replaced. Moreover, the potential risk of power system operation during replacement period can be avoided.
Description
Technical field
The utility model relates to a kind of 500KV does not have the instrument that the bottle supporting frame is changed strain insulator-chain electrical insulator.
Background technology
At changing 500kV circuit strain insulator-chain electrical insulator, present operational method and the power tool that adopts, adopt bottle supporting frame method to change insulator string, the new insulator string structure of strain insulator string of the gold utensil assembling form that 500kV circuit two yoke plates connect, because insulator string length between 6-8m, adopts the bottle supporting frame to bear insulator string weight and can not become a reality.So, change 500kV circuit strain insulator-chain electrical insulator and adopt along insulator working that method more brings the replacing that realizes bunch of insulator piecewise.Employing is changed insulator piecewise along insulator string, and human and material resources are wasteful, the operating time is long, causes risk for the safe and stable operation of electrical network.
Summary of the invention
The purpose of this utility model just provides the instrument of the strain insulator-chain electrical insulator of the gold utensil assembling form that a kind of 500kV of replacing line insulator two yoke plates connect.
The technical scheme that realizes above-mentioned purpose is:
A kind of instrument of changing strain insulator-chain electrical insulator, comprise preceding card (wing card) and back card (turnover panel card), lifting screw mandrel and adjustable insulation arm-tie, card is connected with screw by the screw of two symmetrical main parts by its lower end protuberance wherein, make clip slot of the two formation, each rotates swivel of installation its two ends, and having in the lower end of joint provides the insulation installing hole that arm-tie is connected with the lifting screw mandrel; The back card is connected with screw turns by left and right two adapter sleeves by connecting portion, form the shape of indent epirelief, middle part at the back card is equipped with a turning set, and card two ends, back are equipped with swivel, and also open two joint lower ends provides the insulation installing hole that arm-tie is connected with the lifting screw mandrel.Existing insulation arm-tie and lifting screw mandrel thereof are installed in respectively in the installing hole of front and rear card two joint lower end correspondences, promptly make an instrument of changing strain insulator-chain electrical insulator.And the spacing of two joints of preceding card is corresponding consistent with two joint spacings of back card.
During use, to change the strain insulator-chain electrical insulator instrument, the clip slot of preceding card and the turning set of the back card two ends that are fastened in the insulator string that will change, the forward and backward yoke plate on the coordinated insulation substring, rotate the handle of lifting screw mandrel, just can realize the operation of degree of tightness insulator string to be replaced.
The utility model adopts front and rear card to combine with insulation arm-tie and lifting screw mandrel, constitute an instrument of changing strain insulator-chain electrical insulator, it is simple in structure, operate easy for installation, in the replacing process, can guarantee operating personnel's safety, do not influence insulator string to be replaced again and need not change stressed problem and structural relation between insulator string, more can avoid between the stage of replacement, operation of power networks may have risk.Implement easily, easy and simple to handle; Realized no bottle supporting frame method charged for replacement 500kV circuit strain insulator-chain electrical insulator.
Description of drawings
Fig. 1 is back card structure and shape schematic diagram;
Fig. 2 is preceding card structure and switch schematic diagram.
Embodiment
Below in conjunction with accompanying drawing,, technical scheme is specified as embodiment.
With reference to Fig. 2,1, change the instrument of strain insulator-chain electrical insulator, constitute by existing insulation arm-tie and lifting screw mandrel combination on forward and backward card and the market, wherein preceding card 7 is by left-right symmetric and descend protruding two, connect and compose preceding card body by screw 11, make two joint portions form a clip slot 8, be used for mounting board yoke plate when changing insulator string.The swivel 9 at preceding card two ends is rotationally connected with the card body, and each joint bottom has the installing hole 10 that insulate arm-tie and lifting screw mandrel are installed.Equally, back card 2 card body two ends also correspondence are equipped with two swivels 1, and the installing hole 6 that is used to install insulation arm-tie and lifting screw mandrel has been opened in each joint bottom.Different with preceding card is the structure that adapter sleeve 4 is made in back two joint portion of blocking, and during installation, two trepanning coincide and aims at about making, and is rotationally connected with a screw 3.Two installations connect and compose back card body, become the indent evagination and from two ends to the gradually big profile in middle part, open round mouth at card body middle part, a turning set 5 that is used for the clamping of yoke plate screw is installed.Re-use in four installing holes 10 and 6 of two card two ends correspondences before and after existing two lifting screw mandrels and two supporting with it adjustable insulation arm-ties are installed in respectively on the market, promptly constitute an instrument of changing strain insulator-chain electrical insulator.
During use, carry out relevant item according to the requirement of shelter of power circuit maintenance safety operation program and device.Cooperate to finish more by two electricians on the tower and two electricians of insulator string conductor wire end and ground electrician and change jobs.The concrete operations mode is as follows:
1, enter the working site, the ground electrician spreads out moistureproof cushion, all kinds of insulation ropeses and Work tool classification are put out successively, and assembling is finished.Detect insulating tool with portable insulation tester.
2, the guardian carries anti-fall safety rope and steps on tower to correct position on the tower, selects the sight line optimum to guard.
3, the electrician carries required pulley, insulation rope and insulation rope sling and steps on tower setting extremely separately in succession on the tower, fastens seat belts, and selects the position of suitable operation to install in entrained pulley insulation rope and insulation rope sling.
4, No. 1, No. 2 electrical measuring insulators on the tower confirm that good sheet number satisfies the rules requirement.No. 1, No. 2 electrician's guiding line upthrows are hung the insulation rope on the tower, and the ground electrician plays insulated flexible ladder to be hung on the lead and installs.
5, No. 3, No. 4 electricians carry insulation rope (lifting tool, close with hand strand grinding-in) and two insulation coasters enter conductor wire end in succession along insulator string.
6, the ground electrician crosses insulation ropes with preceding card, back cartoon and passes to No. 3 electricians and last No. 2 electricians of Ta respectively, and installs jig.
7, the ground electrician passes to No. 2 electricians and No. 3 electricians on the tower with screw mandrel and insulation arm-tie by 2 eradication edge ropes, No. 2 electricians cooperate with No. 3 electricians and install screw mandrel and insulation arm-tie on the tower, No. 3, No. 4 electricians extract insulator R pin, and tighten up screw mandrel and make insulator string lax.
8, No. 1 electrician hangs insulating block and loads onto insulation rope (the insulation rope closes with motor-driven strand grinding-in) at the ground line bracket on the tower, be engaged on first insulator of insulator string cross-arm side binding firmly with No. 2 electricians on the tower, No. 2 electricians extract cross-arm side insulator R pin on the tower.
9, No. 3 electricians fix an insulation coaster at the conductor wire end correct position, with horizontal stroke but lateral troley cooperate with insulation rope and the conductor wire end insulator string thrown off in the insulator string tension by the hand strand mill of tower leg, work director commander with insulator string slowly be relaxed to cross-arm side insulator is freed till.
10, No. 2 electricians free cross-arm side insulator on the tower, and work director commander is with the slow let-down of insulator string ground.
11, reposition routine is opposite.The work director commands the ground electrician to grind with conductor wire end pulley and hand strand by ground line bracket pulley and motor-driven strand mill matches winches to the installation site with insulator string, No. 2 electricians install cross-arm side insulator on the tower, and equipotential No. 4 electricians connect insulator string and conductor wire end.
12, changed after, remove instruments such as jig, insulation arm-tie, pass to ground by insulation ropes.
13, under tutorial monitoring on the tower, No. 3, No. 4 the electrician returns along insulator string.
14, No. 2 electricians detect the insulator of changing with the spark gap checkout gear on the tower.
15, tower under the electrician on the tower, the guardian checks on the tower behind the no legacy tower down on the tower.
16, cleaning work scene, personnel withdraw the scene.
Claims (4)
1, a kind of instrument of changing strain insulator-chain electrical insulator, comprise preceding card (7) and back card (2), lifting screw mandrel and adjustable insulation arm-tie, it is characterized in that preceding card (7) is connected with screw (11) by the screw of two symmetrical main parts by its lower end protuberance, make a clip slot of the two formation (8), each rotates an installation swivel (9) its two ends; Back card (2) is rotationally connected by left and right two adapter sleeves by connecting portion (4) and screw (3), forms the shape of indent epirelief, at the middle part of back card (2) turning set (5) is installed, and card two ends, back are equipped with swivel (1).
2, a kind of instrument of changing strain insulator-chain electrical insulator according to claim 1 is characterized in that being equipped with insulation arm-tie and lifting screw mandrel thereof in the installing hole of front and rear card two joint lower end correspondences.
3, a kind of instrument of changing strain insulator-chain electrical insulator according to claim 1, the spacing of two joints of card is corresponding consistent with two joint spacings of back card before it is characterized in that.
4, according to claim 1 or 2,3 described a kind of instruments of changing strain insulator-chain electrical insulator, the installing hole (10) that provides the arm-tie that insulate to be connected with the lifting screw mandrel is provided in the lower end that it is characterized in that preceding card (7) two end connectors (9), and open card (2) two end connector (1) lower ends, back provides the insulation installing hole (6) that arm-tie is connected with the lifting screw mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200814372U CN201230166Y (en) | 2008-07-21 | 2008-07-21 | Tool for replacing anti-tension whole string insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200814372U CN201230166Y (en) | 2008-07-21 | 2008-07-21 | Tool for replacing anti-tension whole string insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201230166Y true CN201230166Y (en) | 2009-04-29 |
Family
ID=40635109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200814372U Expired - Lifetime CN201230166Y (en) | 2008-07-21 | 2008-07-21 | Tool for replacing anti-tension whole string insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201230166Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242153A (en) * | 2014-09-29 | 2014-12-24 | 国家电网公司 | Construction technology for replacing monolithic 550kN glass insulators of strain towers of extra-high voltage direct-current transmission lines |
| CN104600629A (en) * | 2015-02-12 | 2015-05-06 | 中国南方电网有限责任公司超高压输电公司百色局 | Compact-circuit six-bundled conductor linkage plate fixture and application thereof |
| CN105186380B (en) * | 2015-10-28 | 2017-06-06 | 国网黑龙江省电力有限公司绥化供电公司 | For the fixture of overhead transmission line replacing insulator under electrified |
| CN112490931A (en) * | 2020-12-01 | 2021-03-12 | 中国南方电网有限责任公司超高压输电公司柳州局 | Strain insulator triplex insulator string replacement device |
-
2008
- 2008-07-21 CN CNU2008200814372U patent/CN201230166Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242153A (en) * | 2014-09-29 | 2014-12-24 | 国家电网公司 | Construction technology for replacing monolithic 550kN glass insulators of strain towers of extra-high voltage direct-current transmission lines |
| CN104242153B (en) * | 2014-09-29 | 2017-06-13 | 国家电网公司 | Change UHVDC Transmission Lines anchor support monolithic 550kN glass insulator construction technologies |
| CN104600629A (en) * | 2015-02-12 | 2015-05-06 | 中国南方电网有限责任公司超高压输电公司百色局 | Compact-circuit six-bundled conductor linkage plate fixture and application thereof |
| CN105186380B (en) * | 2015-10-28 | 2017-06-06 | 国网黑龙江省电力有限公司绥化供电公司 | For the fixture of overhead transmission line replacing insulator under electrified |
| CN112490931A (en) * | 2020-12-01 | 2021-03-12 | 中国南方电网有限责任公司超高压输电公司柳州局 | Strain insulator triplex insulator string replacement device |
| CN112490931B (en) * | 2020-12-01 | 2022-03-15 | 中国南方电网有限责任公司超高压输电公司柳州局 | Strain insulator triplex insulator string replacement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090429 |
|
| CX01 | Expiry of patent term |