CN105514877A - Cross arm clamp for insulator replacement of steel pipe pole of common-tower double-circuit lines - Google Patents

Cross arm clamp for insulator replacement of steel pipe pole of common-tower double-circuit lines Download PDF

Info

Publication number
CN105514877A
CN105514877A CN201610122667.8A CN201610122667A CN105514877A CN 105514877 A CN105514877 A CN 105514877A CN 201610122667 A CN201610122667 A CN 201610122667A CN 105514877 A CN105514877 A CN 105514877A
Authority
CN
China
Prior art keywords
arm
cross
common
steel pipe
jig
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.)
Granted
Application number
CN201610122667.8A
Other languages
Chinese (zh)
Other versions
CN105514877B (en
Inventor
徐兴华
阳敏
杨福奖
郑鹏飞
曲进
刘晨
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.)
State Grid Corp of China SGCC
Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd
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 State Grid Corp of China SGCC, Weihai Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610122667.8A priority Critical patent/CN105514877B/en
Publication of CN105514877A publication Critical patent/CN105514877A/en
Application granted granted Critical
Publication of CN105514877B publication Critical patent/CN105514877B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 cross arm clamp for insulator replacement of a steel pipe pole of common-tower double-circuit lines. The cross arm clamp comprises a clamp body and is characterized in that the middle section of the clamp body is provided with two cross arm clamp seats, a wire grip clamp groove with an upward opening is formed in each of the two ends of the clamp body, a wire grip is hung in each wire grip clamp groove after being connected with an insulating pull rod and a wire lifting hook, and an insulator string can be replaced by tightening or loosening the wire grips. The cross arm clamp has the advantages that when the cross arm clamp is used, the problem of maintenance inconvenience caused by line design is solved; the cross arm clamp is simple to operate, time saving and labor saving, high in work efficiency, high in universality, free of special requirements on operating workers, low in operating worker number, simple in replacement, low in labor intensity, high in strength, light, high in safety, convenient to carry, short in operation time and capable of reducing line outage time and increasing electricity sales and line safety, and common hot-line operating workers can meet the maintenance process requirements.

Description

Common-tower double-return steel pipe pole changes insulator operation cross-arm jig
Technical field
The present invention relates to the cross-arm jig that a kind of common-tower double-return steel pipe pole for earth potential live operation changes suspension insulator.
Background technology
Along with socioeconomic development, it is more and more higher that the public reliably supplies requirement for electric power.Because steel pipe pole takes up an area, space is little, small investment, construction speed fast, and both artistic and practical, widely applies in recent years in Construction of Intercity Network.Along with being on the increase of power circuit, equipment component is progressively aging, and transmission line operating repairs task is more and more heavier.Because in line design, steel pipe pole steel tube surface is smooth, operating space is narrow, do not take into full account the task requirement that equipment live overhauls, and limit by design conditions, the rod-type of common-tower double-return steel pipe pole, the layout of wire are compacter than angle steel tower single back line, phase spacing is also less, cause the difficulty of carrying out live-line replacing insulator string on steel pipe pole also very large, have a strong impact on circuit reliability operating index.
Summary of the invention
The common-tower double-return steel pipe pole that the technical problem to be solved in the present invention is to provide a kind of convenient operation changes insulator operation cross-arm jig.
Technical solution of the present invention is: the common-tower double-return steel pipe pole provided changes insulator operation cross-arm jig, comprise jig body, its special character is: described jig body stage casing arranges two cross-arm decks, and jig body two ends respectively arrange an opening up wire grip draw-in groove.Wire grip hangs over after being connected with insulated tension pole and thread-lifting hook in the wire grip draw-in groove at cross-arm jig two ends, tightens up or loosen the replacing operation that wire grip can realize insulator string.
Above-mentioned jig body two ends are also provided with opening wire grip bearing groove toward the outer side, are set to double hanging point, hang string mode to adapt to single, double insulator.
Be provided with the screwed hole of up/down perforation between above-mentioned cross-arm deck and wire grip draw-in groove, " L " shape cross-arm hook of band leading screw screw rod is installed in screwed hole.Whole cross-arm jig and steel pipe pole cross-arm are connected and fixed by " L " shape cross-arm hook.
Above-mentioned cross-arm deck is provided with rotary extension slide block, and the maximal dilation amount of rotary extension slide block is 30cm, ensures that it is applicable to the cross-arm of the different models such as 35kV, 110kV, 220kV.
The contact-making surface of above-mentioned rotary extension slide block and cross-arm is arc-shaped, can bear certain active force.
Above-mentioned jig body stage casing is also provided with bird proof device draw-in groove, is applicable to the cross-arm end plate being provided with bird proof device.
Above-mentioned bird proof device draw-in groove is provided with adjustment set bolt, fixing for regulating on bird proof device.
Above-mentioned jig body is aluminum alloy material, and intensity is high, lightweight.
Beneficial effect of the present invention:
(1) cross-arm fixture structure provided by the invention is simple, and overcome the problem of the service work inconvenience caused because of line design, suspension insulator can be changed flexibly, and easy and simple to handle, time saving and energy saving, operating efficiency is high;
(2) cross-arm jig highly versatile provided by the invention, to staff without particular/special requirement, operating personnel is few, and replacement operation flow process is succinct, and labour intensity is low.General live line working librarian use can reach maintenance craft requirement, is applicable to the operation of 35kV-110kV common-tower double-return steel pipe pole earth potential live;
(3) cross-arm jig provided by the present invention adopts aluminum alloy material, has that intensity is high, lightweight, fail safe is high, portable advantage;
(4) use cross-arm jig provided by the invention can live-line replacing insulator string, the activity duration be short, and operating efficiency is high, decreases the line outage time, improves electricity and sells and line security.
Accompanying drawing explanation
Fig. 1 is the structural representation of present pre-ferred embodiments.
Fig. 2 is the schematic top plan view of present pre-ferred embodiments.
Fig. 3 is the using state schematic diagram of present pre-ferred embodiments.
Wherein, Reference numeral is: 1-jig body; 2-wire grip draw-in groove; 3-wire grip bearing groove; 4-bird proof device draw-in groove; 5-regulates set bolt; 6-screwed hole; 7-cross-arm is linked up with; 8-cross-arm deck; 9-rotary extension slide block; 10-wire grip; 11-insulated tension pole; 12-thread-lifting hook; 13-wire; 14-insulator string.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
See Fig. 1 and Fig. 2, present pre-ferred embodiments is that one is applicable to the special cross-arm jig of 35kV-220kV common-tower double-return steel pipe pole polygon cross-arm conductor wire end, and this cross-arm jig comprises the jig body 1 of a symmetrical type structure.The stage casing of jig body 1 arranges two cross-arm decks 8, and the two ends of jig body 1 respectively arrange an opening up wire grip draw-in groove 2 and opening wire grip bearing groove 3 toward the outer side, are set to double hanging point, can adapt to single, double insulator and hang string mode.Cross-arm deck 8 is provided with the remaining that 5mm is left on rotary extension slide block 9(top), the maximal dilation amount of rotary extension slide block 9 is 30cm, ensure that it is applicable to the cross-arm of the different models such as 35kV, 110kV, 220kV, the narrowest 13cm of cross-arm, the widelyst can reach 26cm.Rotary extension slide block 9 will be designed to the transition connection portion part of certain radian with the contact-making surface of cross-arm, can bear certain active force.Also be provided with " Π " shape bird proof device draw-in groove 4 between two cross-arm decks 8, bird proof device draw-in groove 4 both sides are provided with and regulate set bolt 5 to adapt to the cross-arm bird proof device of different size.Screwed hole 6 is provided with between cross-arm bird proof device draw-in groove 4 and wire grip bearing groove 3, " L " shape cross-arm hook 7 of mounting strap leading screw screw rod in screwed hole 6, cross-arm hook 7 is set to symmetric double hanging point, adapts to differing heights by regulating the cross-arm hook length of 7 and the length of rotary extension slide block 9 and does not install the cross-arm end plate of bird proof device.Cross-arm hook 7 employing leading screw screw rod is joined screw and is fixed as one shaping, because two hook will in use bear main power.The hook plate of hook will design relatively long and wider, and large with the contact-making surface of cross-arm, hook plate was originally perpendicular type, and because cross-arm is an arc, so hook plate will be designed with certain rake angle, angle of inclination is approximately 5 degree, and hook plate wants high left side, right side low.
See Fig. 3, wire grip 10 hangs over after being connected with insulated tension pole 11 and thread-lifting hook 12 in the wire grip draw-in groove 2 at cross-arm jig two ends, tightens up or loosen the replacing operation that wire grip 1 can realize insulator string 14.
Cross-arm fixture structure provided by the invention is simple, and overcome the problem of the service work inconvenience caused because of line design, suspension insulator can be changed flexibly, and easy and simple to handle, time saving and energy saving, operating efficiency is high; Cross-arm jig highly versatile, to staff without particular/special requirement, operating personnel is few, and replacement operation flow process is succinct, and labour intensity is low.General live line working librarian use can reach maintenance craft requirement, is applicable to the operation of 35kV-110kV common-tower double-return steel pipe pole earth potential live; Cross-arm jig adopts aluminum alloy material, has that intensity is high, lightweight, fail safe is high, portable advantage; Cross-arm jig can live-line replacing insulator string, and the activity duration is short, and operating efficiency is high, decreases the line outage time, improves electricity and sells and line security.

Claims (9)

1. common-tower double-return steel pipe pole changes an insulator operation cross-arm jig, and comprise jig body, it is characterized in that: described jig body stage casing arranges two cross-arm decks, jig body two ends respectively arrange an opening up wire grip draw-in groove.
2. common-tower double-return steel pipe pole according to claim 1 changes insulator operation cross-arm jig, it is characterized in that: described jig body two ends are also provided with opening wire grip bearing groove toward the outer side.
3. common-tower double-return steel pipe pole according to claim 2 changes insulator operation cross-arm jig, it is characterized in that: the screwed hole being provided with up/down perforation between described cross-arm deck and wire grip draw-in groove, " L " shape cross-arm hook of band leading screw screw rod is installed in screwed hole.
4. common-tower double-return steel pipe pole according to claim 3 changes insulator operation cross-arm jig, it is characterized in that: described cross-arm deck is provided with rotary extension slide block.
5. common-tower double-return steel pipe pole according to claim 4 changes insulator operation cross-arm jig, it is characterized in that: the maximal dilation amount of described rotary extension slide block is 30cm.
6. common-tower double-return steel pipe pole according to claim 5 changes insulator operation cross-arm jig, it is characterized in that: the contact-making surface of described rotary extension slide block and cross-arm is arc-shaped.
7. common-tower double-return steel pipe pole according to claim 6 changes insulator operation cross-arm jig, it is characterized in that: described jig body stage casing is also provided with bird proof device draw-in groove.
8. common-tower double-return steel pipe pole according to claim 7 changes insulator operation cross-arm jig, it is characterized in that: described bird proof device draw-in groove is provided with adjustment set bolt.
9. change insulator operation cross-arm jig according to described common-tower double-return steel pipe pole arbitrary in claim 1-8, it is characterized in that: described jig body is aluminum alloy material.
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

Applications Claiming Priority (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

Publications (2)

Publication Number Publication Date
CN105514877A true CN105514877A (en) 2016-04-20
CN105514877B CN105514877B (en) 2018-11-16

Family

ID=55722646

Family Applications (1)

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

Country Status (1)

Country Link
CN (1) CN105514877B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106451209A (en) * 2016-10-31 2017-02-22 国网山东省电力公司济南市长清区供电公司 Insulator string replacement auxiliary device
CN107706822A (en) * 2017-11-15 2018-02-16 国家电网公司 Equipotential suspension clamp changes instrument
CN112523676A (en) * 2020-11-27 2021-03-19 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
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)

* 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
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106451209A (en) * 2016-10-31 2017-02-22 国网山东省电力公司济南市长清区供电公司 Insulator string replacement auxiliary device
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
CN112523676A (en) * 2020-11-27 2021-03-19 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
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

Also Published As

Publication number Publication date
CN105514877B (en) 2018-11-16

Similar Documents

Publication Publication Date Title
CN201584697U (en) Overhead ground wire crossarm clamp used on 500KV transmission line steel tower
CN103594968A (en) Lifting device of multiple divided conductors of transmission tower
CN105514877A (en) Cross arm clamp for insulator replacement of steel pipe pole of common-tower double-circuit lines
CN101814707B (en) Tool for live replacement of 220kV line 'V' string insulator and method
CN205565511U (en) Change insulators cross arm fixture for operation with two steel pipe poles that return of tower
CN203456797U (en) Broadsword fixture for replacing entire string of insulator of duplex insulator string during power failure
CN110707599A (en) Special tool for electrified adjustment of 220kv vertically-arranged double-bundle conductor sag
CN201146346Y (en) Portable insulation maintenance gap bridge
CN203690797U (en) Cross arm side clamp used for insulator chain maintenance
CN204577646U (en) Extension type ground wire fixing device
CN206471748U (en) Universal 500kV straight lines wineglass tower line maintenance cross-arm hanging point device
CN2904405Y (en) 10KV grounding wire mounting and detaching insulation holder
CN202633732U (en) Auxiliary safety device for mounting and dismounting of grounding wires
CN206023136U (en) A kind of bypass lead-up cable fixing device
CN202846443U (en) Electrified overhauling wrench
CN205992719U (en) It is easy to the TJ type jumper wire spacing rod adjusting
US8389861B2 (en) Safety arm pin
CN206099159U (en) Electrified fixture of changing two clusters of straight line or two cluster insulators of strain insulator
CN204947466U (en) Portable live line working line lifter
CN204809744U (en) Wire end broadsword type load support fixture and insulator chain change device
CN207490436U (en) The double models for hanging V-type composite insulator string replacing options of ± 500kV DC power transmission lines duplex
CN202042829U (en) Grounding wire mounting and dismounting insulated holding clip
CN202042610U (en) Ground wire clamp
CN207800949U (en) A kind of earthing wire clip
CN206211407U (en) The fixture of charged for replacement double bundle conductor strain list insulator string

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant