CN105514877B - Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture - Google Patents

Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture Download PDF

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Publication number
CN105514877B
CN105514877B CN201610122667.8A CN201610122667A CN105514877B CN 105514877 B CN105514877 B CN 105514877B CN 201610122667 A CN201610122667 A CN 201610122667A CN 105514877 B CN105514877 B CN 105514877B
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CN
China
Prior art keywords
cross
arm
jig body
cord holder
hook
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CN201610122667.8A
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CN105514877A (en
Inventor
徐兴华
阳敏
杨福奖
郑鹏飞
曲进
刘晨
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State Grid Corp of China SGCC
Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd
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State Grid Corp of China SGCC
Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Publication of CN105514877A publication Critical patent/CN105514877A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

Abstract

The invention discloses a kind of common-tower double-return steel pipe poles to replace insulation subjob cross-arm fixture, including jig body, it is characterised in that:Two cross-arm decks are arranged in the jig body middle section, an opening up cord holder card slot is respectively arranged in jig body both ends, cord holder is hung over after connecting with insulated pull rod and thread-lifting hook in the cord holder card slot at cross-arm fixture both ends, tightening or loosening cord holder can be realized replacement operation to insulator chain, when the present invention uses, the problem of service work inconvenience caused by overcoming because of route design, easy to operate, time saving and energy saving, work efficiency is high;It is versatile, to staff without particular/special requirement, operating personnel is few, replacement operation process is succinct, and labor intensity is low, and general livewire work personnel use can reach maintenance craft requirement, have the advantages that intensity is high, light-weight, highly-safe, the activity duration easy to carry is short, work efficiency is high, reduces the line outage time, improves electricity sale and line security.

Description

Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture
Technical field
The present invention relates to a kind of cross of common-tower double-return steel pipe pole replacement suspension insulator for earth potential live operation Carry on a shoulder pole fixture.
Background technique
With the continuous social and economic development, the public electric power is reliably supplied require it is higher and higher.Due to steel pipe Bar space occupied is small, small investment, construction speed are fast and both artistic and practical, widely applies in Construction of Intercity Network in recent years.With Power circuit is increasing, equipment component gradually aging, and transmission line of electricity operating repairs task is increasingly heavier.Due to Steel pipe pole steel tube surface is smooth, operating space is narrow in route design, does not fully consider the task of equipment live maintenance It is required that and limited by design conditions, rod-type, the arrangement of conducting wire of common-tower double-return steel pipe pole are tighter than angle steel tower single back line It gathers, phase spacing is also smaller, and the difficulty for causing the development live-line replacing insulator chain on steel pipe pole is also very big, seriously Influence circuit reliability operating index.
Summary of the invention
Make the technical problem to be solved in the present invention is to provide a kind of convenient for the common-tower double-return steel pipe pole replacement insulator of operation Industry cross-arm fixture.
The technical solution of the invention is as follows:Provided common-tower double-return steel pipe pole replacement insulation subjob cross-arm card Tool, including jig body, are characterized in that:Two cross-arm decks, jig body both ends are arranged in the jig body middle section Respectively one opening up cord holder card slot of setting.Cord holder hangs over cross-arm fixture both ends after connecting with insulated pull rod and thread-lifting hook Cord holder card slot in, tightening or loosening cord holder can be realized replacement operation to insulator chain.
Above-mentioned jig body both ends are additionally provided with cord holder branch seat slot of the opening towards outside, are set as double hanging point, with suitable Single, double insulator is answered to hang string mode.
It is provided with threaded hole up and down between above-mentioned cross-arm deck and cord holder card slot, is provided with silk in threaded hole The L shape cross-arm of thick stick screw rod is linked up with.Entire cross-arm fixture and steel pipe pole cross-arm are connected and fixed by L shape cross-arm hook.
Rotary extension sliding block is provided on above-mentioned cross-arm deck, the maximal dilation amount of rotary extension sliding block is 30cm, is guaranteed It is suitable for the cross-arms of the different models such as 35kV, 110kV, 220kV.
The contact surface of above-mentioned rotary extension sliding block and cross-arm is arc-shaped, is able to bear certain active force.
Above-mentioned jig body middle section is additionally provided with bird proof device card slot, suitable for being equipped with the cross-arm end plate of bird proof device.
It is provided with adjusting fixing bolt on above-mentioned bird proof device card slot, is fixed for being adjusted on bird proof device.
Above-mentioned jig body is aluminum alloy material, and intensity is high, light-weight.
Beneficial effects of the present invention:
(1)Cross-arm fixture structure provided by the invention is simple, service work inconvenience caused by overcoming because of route design Problem replace suspension insulator can flexibly, and easy to operate, time saving and energy saving, work efficiency is high;
(2)Cross-arm fixture provided by the invention is versatile, and to staff without particular/special requirement, operating personnel is few, replacement Operating process is succinct, and labor intensity is low.General livewire work personnel use can reach maintenance craft requirement, be suitable for 35kV -110kV common-tower double-return steel pipe pole earth potential live operation;
(3)Cross-arm fixture provided by the present invention uses aluminum alloy material, has intensity high, light-weight, highly-safe, just In carry the advantages of;
(4)Can be with live-line replacing insulator chain using cross-arm fixture provided by the invention, the activity duration is short, work effect Rate is high, reduces the line outage time, improves electricity sale and line security.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present pre-ferred embodiments.
Fig. 2 is the schematic top plan view of present pre-ferred embodiments.
Fig. 3 is the use state diagram of present pre-ferred embodiments.
Wherein, appended drawing reference is:1- jig body;2- cord holder card slot;3- cord holder branch seat slot;4- bird proof device card slot; 5- adjusts fixing bolt;6- threaded hole;7- cross-arm hook;8- cross-arm deck;9- rotary extension sliding block;10- cord holder;11- is exhausted Edge pull rod;12- thread-lifting hook;13- conducting wire;14- insulator chain.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings:
Referring to Fig. 1 and Fig. 2, present pre-ferred embodiments are a kind of more suitable for 35kV -220kV common-tower double-return steel pipe pole The dedicated cross-arm fixture of side shape cross-arm conductor wire end, the cross-arm fixture include the jig body 1 of a bilateral symmetry type structure.Fixture sheet Two cross-arm decks 8 are arranged in the middle section of body 1, and an opening up cord holder card slot 2 and one is respectively arranged in the both ends of jig body 1 A opening is set as double hanging point towards the cord holder branch seat slot 3 in outside, is adapted to single, double insulator and hangs string mode.Cross-arm card Rotary extension sliding block 9 is provided on seat 8(There are the remainings of 5mm on top), the maximal dilation amount of rotary extension sliding block 9 is 30cm, Guarantee it is suitable for the cross-arm of the different models such as 35kV, 110kV, 220kV, cross-arm most narrow 13cm is most wide to reach 26cm.Rotation Flexible sliding block 9 will be designed to the transition connection portion part of certain radian with the contact surface of cross-arm, can bear certain effect Power." Π " shape bird proof device card slot 4 is additionally provided between two cross-arm decks 8,4 two sides of bird proof device card slot, which are equipped with, adjusts fixing bolt 5 to adapt to various sizes of cross-arm bird proof device.Threaded hole is provided between cross-arm bird proof device card slot 4 and cord holder branch seat slot 3 6, L shape cross-arm hook 7 of the interior installation of threaded hole 6 with lead screw screw rod, cross-arm hook 7 is set as symmetrical double hanging point, can pass through tune The length of section cross-arm hook 7 and the length of rotary extension sliding block 9 adapt to different height and are fitted without the cross-arm-end of bird proof device Plate.Cross-arm hook 7 is fixed as one molding using lead screw screw rods with screw, because double hooks will bear main power in use. The hook plate of hook will design relatively long and wider, and big with the contact surface of cross-arm, hook plate is originally perpendicular type, since cross-arm is One arc, so hook plate will design certain rake angle, tilt angle is about 5 degree, and hook plate wants the high left side in right side low.
Referring to Fig. 3, cord holder 10 hangs over the cord holder at cross-arm fixture both ends after connecting with insulated pull rod 11 and thread-lifting hook 12 In card slot 2, tightening or loosening cord holder 1 can be realized replacement operation to insulator chain 14.
Cross-arm fixture structure provided by the invention is simple, and service work is inconvenient caused by overcoming because of route design asks Topic, replace suspension insulator can flexibly, easy to operate, time saving and energy saving, work efficiency is high;Cross-arm fixture is versatile, right For staff without particular/special requirement, operating personnel is few, and replacement operation process is succinct, and labor intensity is low.General livewire work personnel make With maintenance craft requirement can be reached, it is suitable for the earth potential live operation of 35kV -110kV common-tower double-return steel pipe pole;Cross-arm card Tool uses aluminum alloy material, has the advantages that intensity is high, light-weight, highly-safe, easy to carry;Cross-arm fixture can charge work Industry replaces insulator chain, and the activity duration is short, and work efficiency is high, reduces the line outage time, improves electricity sale and route Safety.

Claims (1)

1. a kind of common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture, including jig body, it is characterised in that:Fixture Ontology is symmetrical in tiled configuration, and jig body is aluminum alloy material, and two cross-arm decks, jig body is arranged in jig body middle section An opening up cord holder card slot is respectively arranged in both ends, and stringing of the opening towards outside is also respectively arranged in jig body both ends Device branch seat slot, is provided with rotary extension sliding block on cross-arm deck, and the spacing of rotary extension sliding block and jig body is 5mm, rotation The maximal dilation amount of flexible sliding block is 30cm, is suitable for 35kV, 110kV, 220kV model cross-arm, rotary extension sliding block and cross-arm Contact surface is the transition connection portion part for having certain radian, and the anti-bird of " Π " shape is provided in the jig body between two cross-arm decks Device card slot, bird proof device card slot two sides are equipped with the adjusting fixing bolt for adapting to various sizes of cross-arm bird proof device, cross-arm bird proof device card Threaded hole up and down is provided between slot and cord holder branch seat slot, the L shape that lead screw screw rod is provided in threaded hole is horizontal Load hook, cross-arm hook be set as symmetrical double hanging point, by adjust cross-arm hook length and rotary extension sliding block length come It adapts to different height and is fitted without the cross-arm end plate of bird proof device, cross-arm hook is fixed as one into using lead screw screw rod with screw Type, the hook plate tilt angle of hook are 5 degree, and hook plate wants the high left side in right side low, in use, cord holder and insulated pull rod and thread-lifting hook It is hung over after connection in the cord holder card slot at cross-arm fixture both ends, tightening or loosening cord holder can be realized replacement to insulator chain Operation.
CN201610122667.8A 2016-03-04 2016-03-04 Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture Active CN105514877B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610122667.8A CN105514877B (en) 2016-03-04 2016-03-04 Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture

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Application Number Priority Date Filing Date Title
CN201610122667.8A CN105514877B (en) 2016-03-04 2016-03-04 Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture

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CN105514877B true CN105514877B (en) 2018-11-16

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106451209B (en) * 2016-10-31 2018-08-07 国网山东省电力公司济南市长清区供电公司 A kind of replacing insulator string auxiliary device
CN107706822A (en) * 2017-11-15 2018-02-16 国家电网公司 Equipotential suspension clamp changes instrument
CN111130017A (en) * 2020-03-02 2020-05-08 国网通用航空有限公司 Ground wire lifter operating by utilizing ground wire cross arm angle steel
CN112523676B (en) * 2020-11-27 2022-08-02 国网山东省电力公司烟台供电公司 Climbing assistor for insulating rope ladder of power transmission line

Citations (7)

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Publication number Priority date Publication date Assignee Title
CN202363811U (en) * 2011-12-13 2012-08-01 辽宁省电力有限公司鞍山供电公司 Cross arm clamping device for replacing insulator of direct-current 500kv straight-line string
CN203690800U (en) * 2014-01-08 2014-07-02 云南电网公司带电作业分公司 Integral clamping tool used for replacing cross arm end linear string insulator
CN104009416A (en) * 2014-06-05 2014-08-27 国家电网公司 Large-span telescopic universal tower head fixture
CN204144800U (en) * 2014-12-12 2015-02-04 国家电网公司 The special cross-arm card of a kind of ZML type tower
CN204167793U (en) * 2014-11-10 2015-02-18 云南电网公司带电作业分公司 Straight line steel tube tower side, double loop cross-arm jig
CN204651789U (en) * 2015-06-19 2015-09-16 国家电网公司 The special hanger of hot-line insulator string replacement
CN205565511U (en) * 2016-03-04 2016-09-07 国家电网公司 Change insulators cross arm fixture for operation with two steel pipe poles that return of tower

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202363811U (en) * 2011-12-13 2012-08-01 辽宁省电力有限公司鞍山供电公司 Cross arm clamping device for replacing insulator of direct-current 500kv straight-line string
CN203690800U (en) * 2014-01-08 2014-07-02 云南电网公司带电作业分公司 Integral clamping tool used for replacing cross arm end linear string insulator
CN104009416A (en) * 2014-06-05 2014-08-27 国家电网公司 Large-span telescopic universal tower head fixture
CN204167793U (en) * 2014-11-10 2015-02-18 云南电网公司带电作业分公司 Straight line steel tube tower side, double loop cross-arm jig
CN204144800U (en) * 2014-12-12 2015-02-04 国家电网公司 The special cross-arm card of a kind of ZML type tower
CN204651789U (en) * 2015-06-19 2015-09-16 国家电网公司 The special hanger of hot-line insulator string replacement
CN205565511U (en) * 2016-03-04 2016-09-07 国家电网公司 Change insulators cross arm fixture for operation with two steel pipe poles that return of tower

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