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 PDFInfo
- 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
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- Prior art keywords
- arm
- cross
- common
- steel pipe
- jig
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- 239000012212 insulator Substances 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 25
- 239000010959 steel Substances 0.000 title claims abstract description 25
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods 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
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.
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 |
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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)
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|---|---|
| CN (1) | CN105514877B (en) |
Cited By (4)
| 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 |
| 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 |
| 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 |
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| 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 |
-
2016
- 2016-03-04 CN CN201610122667.8A patent/CN105514877B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 (6)
| 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 |
| 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 |
| 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 |
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