CN203895850U - Fixture for replacing L-shaped insulator strings of 500kV power transmission lines in charged manner - Google Patents

Fixture for replacing L-shaped insulator strings of 500kV power transmission lines in charged manner Download PDF

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Publication number
CN203895850U
CN203895850U CN201420272504.4U CN201420272504U CN203895850U CN 203895850 U CN203895850 U CN 203895850U CN 201420272504 U CN201420272504 U CN 201420272504U CN 203895850 U CN203895850 U CN 203895850U
Authority
CN
China
Prior art keywords
clamp
card
cross arm
butt
rod
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.)
Expired - Fee Related
Application number
CN201420272504.4U
Other languages
Chinese (zh)
Inventor
牛捷
邹德华
李智慧
李辉
谢建高
彭金刚
欧乃成
刘拓晟
章健军
郑克全
唐力
杨淼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Live Working Center of State Grid Hunan Electric Power Co
Original Assignee
Live Working Center of State Grid Hunan Electric Power Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Live Working Center of State Grid Hunan Electric Power Co filed Critical Live Working Center of State Grid Hunan Electric Power Co
Priority to CN201420272504.4U priority Critical patent/CN203895850U/en
Application granted granted Critical
Publication of CN203895850U publication Critical patent/CN203895850U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a fixture for replacing L-shaped insulator strings of 500kV power transmission lines in a charged manner. The fixture comprises insulating pull rods and adjusting screw rods, each adjusting screw rod is connected to one end of the corresponding insulating pull rod, the lower ends of the adjusting screw rods are connected with a wire end clamp, the upper ends of the insulating pull rods are connected with a cross arm end clamp, the wire end clamp comprises a connecting shaft and butt clamp bodies located on two ends of the connecting shaft, the connecting shaft is located on the lower sides of butt clamp faces of the butt clamp bodies, two ends of the connecting shaft are respectively inserted into the butt clamp bodies and are hinged with the corresponding butt clamp bodies through pins, and the butt clamp bodies can rotate around the pins. The fixture is connected and fastened to a metal U-shaped ring of a cross arm side through the cross arm end clamp and is connected and fastened to a coupling plate fixing a wire through the wire end clamp, the adjusting screw rod is tightened so that the two butt clamp bodies of the wire end clamp tightly clamp the coupling plate and enables the coupling plate to move upwardly, the wire is thus driven to move upwardly, and axial loads of the insulator strings needing to be replaced are transferred simply and rapidly. The cross arm end clamp and the wire end clamp are installed by means of components, which are already disposed on the lines, without power failures.

Description

For the jig of charged for replacement 500kV electric transmission line isolator L string
Technical field
The utility model relates to a kind of for the operation tool on transmission line, is specifically related to a kind of jig of charged for replacement 500kV electric transmission line isolator L string.
Background technology
Along with the development of China's supertension line, " L " insulator string string is widely used in little angle tower.Operating insulator not only bears the effect of operating voltage for a long time, but also to be subject to the superpotential effects such as operation and thunder and lightning, the mechanical load of wire deadweight in addition, wind-force, ice and snow, variation of ambient temperature and the dunghill that insulator is adhered to, thunderbolt, outside destroy, etc. cause influence, make operating insulator will occur damaging, affect line security operation.For executing state maintenance, and improve the reliability of powering when circuit allows, need timely replacing not meet the insulator of service requirement.And to 500kV supertension line, power failure operation cannot meet the requirement of high-quality reliable power supply.
Utility model content
The purpose of this utility model is to provide a kind of jig of charged quick-replaceable 500KV line linear angle tower insulator string.
The disclosed this jig for charged for replacement 500kV electric transmission line isolator L string of the utility model, comprise insulation pull-rod and the adjusting screw mandrel that is connected in its one end, regulate the lower end of screw mandrel to be connected with wire termination card, the upper end of insulation pull-rod is connected with cross arm end card, wire termination card comprise connecting axle and be positioned at connecting axle two ends to clamp, connecting axle is positioned at the downside of two pairs of clamps to folder face, insert respectively in clamp at its two ends,, can rotate around bearing pin clamp with hinged to clamp accordingly by bearing pin.
Described cross arm end card comprises fixing card and the movable clamp being connected thereon, there is the intercell connector along short transverse at the two ends of movable clamp length direction one side, the length direction centre position place of fixing card is useful on the opening up U-shaped groove of connection activity clamp, on the entity of U-shaped groove both sides, there is the gathering sill of position corresponding to intercell connector, between movable clamp and fixing card, connect fastening by bolt and nut.
The two ends of described wire termination card and cross arm end card are connected fastening by screw rod and corresponding nut with described insulation pull-rod.
The utility model is connected fastening by cross arm end card with the U-shaped ring of gold utensil of cross-arm side, be connected fastening by wire termination card with the yoke plate of fixing cord, regulate screw mandrel to make two pairs of clamps of wire termination card clamp yoke plate and make it to move by tightening up, thereby move on drive wire, make to need the axial load of the insulator string of changing to shift, to realize the replacing of insulator string.The installation of cross arm end card and wire termination card is by existing member on circuit, and the axial load of insulator string is simple and quick, without power failure operation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the master of cross arm end card in Fig. 1 looks schematic diagram.
Fig. 3 is the schematic top plan view of Fig. 2.
Embodiment
As shown in Figure 1 to Figure 3, the disclosed this jig for charged for replacement 500kV electric transmission line isolator L string of the utility model, comprise insulation pull-rod 1 and the adjusting screw mandrel 2 that is connected in its one end, regulate the lower end of screw mandrel 2 to be connected with wire termination card 3, the upper end of insulation pull-rod 1 is connected with cross arm end card 4.
Cross arm end card 4 comprises fixing card 41 and the movable clamp 42 being connected thereon, there is the intercell connector 43 along short transverse at the two ends of movable clamp 42 length direction one sides, the length direction centre position place of fixing card 41 is useful on the opening up U-shaped groove 44 of connection activity clamp 42, on the entity of U-shaped groove 44 both sides, there is the gathering sill 45 of position corresponding to intercell connector 43, between movable clamp 42 and fixing card 41, connect fastening by bolt 5 and nut 6.
Wire termination card 3 comprise connecting axle 31 and be positioned at connecting axle 31 two ends to clamp 32.Connecting axle 31 is positioned at the downside to folder face to clamp 32, and insert respectively in clamp 32 at its two ends,, can rotate around bearing pin 33 clamp 32 with hinged to clamp 32 accordingly by bearing pin 33.
The two ends of wire termination card 3 and cross arm end card 4 are connected fastening with insulation pull-rod 1 by screw rod 7 and corresponding nut, fix the two ends of card 41 and to clamp 32 and outer end through-thickness have corresponding connecting hole.
Concrete operation step of the present utility model is as follows:
1, after the movable clamp 42 of cross arm end card 4 is taken off, make to be connected in the U-shaped ring that the bolt 5 of fixing in card 41 passes insulator cross-arm side to be replaced, then it is fastening good movable clamp 42 to be connected, and utilizes the construction hole on yoke plate that wire termination card 3 is fixed on yoke plate.
2, insulation pull-rod 1 is assembled with regulating screw mandrel 2, the upper end of insulation pull-rod 1 is connected fastening with cross arm end card 4, tighten up adjusting screw mandrel 2 by regulating the lower end of screw mandrel 2 to be connected with wire termination card 3 after fastening, drive two pairs of clamps 31 of wire termination card 3 around up rotating and clamp yoke plate and make to move on yoke plate around bearing pin 33 respectively, thereby on drive wire, move, the xial feed on the insulator string that makes to change shifts.
3, utilize and drag bottle stand and insulation ropes combination, by the vertical load transfer of insulator string.
4, coordinate with ground staff, insulator string is freed, and safety placement ground is changed.
5, new insulator string is installed, installation steps are contrary with abovementioned steps.

Claims (3)

1. the jig for charged for replacement 500kV electric transmission line isolator L string, it is characterized in that: this device comprises insulation pull-rod and is connected in the adjusting screw mandrel of its one end, regulate the lower end of screw mandrel to be connected with wire termination card, the upper end of insulation pull-rod is connected with cross arm end card; Wire termination card comprise connecting axle and be positioned at connecting axle two ends to clamp, connecting axle be positioned at two pairs of clamps to folder face downside, insert respectively in clamp at its two ends, by bearing pin with hinged to clamp accordingly, can rotate around bearing pin clamp.
2. the jig for charged for replacement 500kV electric transmission line isolator L string as claimed in claim 1, it is characterized in that: described cross arm end card comprises fixing card and the movable clamp being connected thereon, there is the intercell connector along short transverse at the two ends of movable clamp length direction one side, the length direction centre position place of fixing card is useful on the opening up U-shaped groove of connection activity clamp, on the entity of U-shaped groove both sides, there is the gathering sill of position corresponding to intercell connector, between movable clamp and fixing card, connect fastening by bolt and nut.
3. the jig for charged for replacement 500kV electric transmission line isolator L string as claimed in claim 2, is characterized in that: the two ends of described wire termination card and cross arm end card are connected fastening by screw rod and corresponding nut with described insulation pull-rod.
CN201420272504.4U 2014-05-27 2014-05-27 Fixture for replacing L-shaped insulator strings of 500kV power transmission lines in charged manner Expired - Fee Related CN203895850U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420272504.4U CN203895850U (en) 2014-05-27 2014-05-27 Fixture for replacing L-shaped insulator strings of 500kV power transmission lines in charged manner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420272504.4U CN203895850U (en) 2014-05-27 2014-05-27 Fixture for replacing L-shaped insulator strings of 500kV power transmission lines in charged manner

Publications (1)

Publication Number Publication Date
CN203895850U true CN203895850U (en) 2014-10-22

Family

ID=51722206

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420272504.4U Expired - Fee Related CN203895850U (en) 2014-05-27 2014-05-27 Fixture for replacing L-shaped insulator strings of 500kV power transmission lines in charged manner

Country Status (1)

Country Link
CN (1) CN203895850U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104682262A (en) * 2015-02-12 2015-06-03 中国南方电网有限责任公司超高压输电公司百色局 Conductor end fixture for replacing first insulator at conductor end of single-link suspension insulator string and application of conductor end fixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104682262A (en) * 2015-02-12 2015-06-03 中国南方电网有限责任公司超高压输电公司百色局 Conductor end fixture for replacing first insulator at conductor end of single-link suspension insulator string and application of conductor end fixture

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

Termination date: 20200527