CN203871745U - Double-hoisting-point rod head fixture for live changing of linear insulator on steel pipe pole of 220kV line - Google Patents
Double-hoisting-point rod head fixture for live changing of linear insulator on steel pipe pole of 220kV line Download PDFInfo
- Publication number
- CN203871745U CN203871745U CN201420202991.7U CN201420202991U CN203871745U CN 203871745 U CN203871745 U CN 203871745U CN 201420202991 U CN201420202991 U CN 201420202991U CN 203871745 U CN203871745 U CN 203871745U
- Authority
- CN
- China
- Prior art keywords
- fastening
- crossbeam
- hoisting
- double
- steel pipe
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 24
- 239000010959 steel Substances 0.000 title claims abstract description 24
- 239000012212 insulators Substances 0.000 title claims abstract description 11
- 239000000725 suspensions Substances 0.000 claims abstract description 10
- 241001236653 Lavinia exilicauda Species 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 239000003570 air Substances 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductors Substances 0.000 description 1
- 238000010586 diagrams Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reactions Methods 0.000 description 1
- 230000004301 light adaptation Effects 0.000 description 1
- 239000000463 materials Substances 0.000 description 1
Abstract
The utility model relates to a double-hoisting-point rod head fixture for live changing of a linear insulator on a steel pipe pole of a 220kV line, which comprises the components of: a force bearing upper crossbeam, a fastening lower crossbeam and fastening bolts. The force bearing upper crossbeam and the fastening lower crossbeam are respectively provided with two adjustable elongated holes. Two ends of the force bearing upper crossbeam 1 are respectively with a U-shaped tank. Each U-shaped tank is connected with a bolt forming tool suspension point. Two fastening bolts are arranged. The two fastening bolts respectively penetrate through the adjustable elongated holes on the fastening lower crossbeam and the force bearing upper crossbeam successively for connecting the force bearing upper crossbeam with the fastening lower crossbeam. The double-hoisting-point rod head fixture can be used on a live line and improves power supply reliability. The double-hoisting-point rod head fixture is suitable for all large-span single-lead and multiple-lead steel pipe pole power transmission lines and has improved versatility. When the double-hoisting-point rod head fixture is mounted on a cross arm head of the steel pipe pole, the double-hoisting-point rod head fixture performs functions of : effectively enlarging a distance between a live lead and ground and an air gap, improving insulation coefficient and insulating level of an insulating tool, and improving safety.
Description
Technical field
The utility model relates to a kind of for the special bearing tool of power transmission line steel pipe rod electrified replacing linear insulator, especially relates to used pair of suspension centre bar head jig of a kind of 220kV power line steel tuble pole electrified replacing linear insulator.
Background technology
The circuit of steel pipe pole has that good looking appearance, floor space are little, shaft tower material is difficult for the advantages such as loss, but also there is the shortcomings such as cost is high, maintenance inconvenience, transport inconvenience, application to some extent in transmission line in recent years, but not very extensive, while only having minority area or special requirement, just set up this type of transmission line.Tradition live line working is installed, is safeguarded that insulating tool used and method of operation do not update to new standard.Particularly need to be in the time that steel pipe pole cross-arm head hang suspension centre, because the similar cuboid member of steel pipe pole is succinct, cross-arm head is smooth and do not have installing hole, hot line job to be difficult to launch.
Utility model content
The technical problems to be solved in the utility model is to provide used pair of suspension centre bar head jig of a kind of 220kV power line steel tuble pole electrified replacing linear insulator.This jig is arranged on steel pipe pole cross-arm head, hangs vertical load that load insulating tool shifts wire to reach circuit exercisable object when charged with it.
The problem existing in order to solve prior art, the technical solution adopted in the utility model is:
Used pair of suspension centre bar head jig of 220kV power line steel tuble pole electrified replacing linear insulator, include: load entablature, fastening sill and fastening bolt, on described load entablature and fastening sill, respectively have two adjustable slotted holes, the two ends of load entablature 1 are provided with U-lag, on U-lag, be connected with bolt and form instrument hitch point, the quantity of fastening bolt is two, and two fastening bolts link together load entablature and fastening sill through the adjustable slotted hole on fastening sill and load entablature respectively successively.
The fastening bottom rail beam length of the Length Ratio 100mm of described load entablature.
Advantage and effect that the utility model has are:
1, the utility model has changed needs to have a power failure just achievable events in operation in the past, can on alive circuit, carry out, and has improved power supply reliability
2, the utility model can adapt to the installation of this area all 220KV power transmission line steel pipe rods cross-arm head, and the steel pipe pole transmission line that is suitable for all large leaps, single conductor and multiple wire uses, and has improved versatility
3, when the utility model is arranged on steel pipe pole cross-arm head, also effectively increase live wire distance to the ground, air gap, the insulating coefficient that has strengthened insulating tool and insulation level, improved fail safe
4, when the utility model uses on dead line, can improve and cause insulator that difficulty, setting fastening and the difficulty of triping are installed because coaster suspension centre is too low.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is that the utility model uses state reference map.
In figure: load entablature 1, fastening sill 2, adjustable slotted hole 3, adjustable slotted hole 4, fastening bolt 5, U-lag 11, hole 7, bolt 12.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, 2, used pair of suspension centre bar head jig of the utility model 220kV power line steel tuble pole electrified replacing linear insulator includes: load entablature 1 and fastening sill 2, the both sides of described load entablature 1 have two equidistant adjustable slotted holes 3, for adjusting the position of the required installation of fastening bolt and the width of adaptation steel pipe pole cross-arm head.The two ends of load entablature 1 are respectively provided with a U-lag 11, and the both sides of U-lag 11 have hole 7, and bolt 12 is fixed formation instrument hitch point through behind hole 7 by nut.Instrument hitch point is used for hanging insulating tool, is the member of stressed maximum in this jig.Described fastening sill 2 lies in a horizontal plane in steel pipe pole cross-arm head lower floor, has two equidistant adjustable slotted holes 4 to adapt to the width of steel pipe pole cross-arm head on it.The quantity of fastening bolt 5 is two, and two fastening bolts link together load entablature and fastening sill through the adjustable slotted hole on fastening sill and load entablature respectively successively, make the present invention firmly be located in steel pipe pole cross-arm head.Two fastening bolts 5 vertically penetrate in the adjustable slotted hole of fastening sill and load entablature and make this cover jig keep balance, for carrying the uneven pulling force producing from operation.Lie in a horizontal plane in steel pipe pole cross-arm head upper strata, for carrying the vertical load all from wire.
The fastening bottom rail beam length of the Length Ratio 100mm of described load entablature 1.
Claims (2)
- Used pair of suspension centre bar head jig of 1.220kV power line steel tuble pole electrified replacing linear insulator, it is characterized in that including: load entablature, fastening sill and fastening bolt, on described load entablature and fastening sill, respectively have two adjustable slotted holes, the two ends of load entablature 1 are provided with U-lag, on U-lag, be connected with bolt and form instrument hitch point, the quantity of fastening bolt is two, and two fastening bolts link together load entablature and fastening sill through the adjustable slotted hole on fastening sill and load entablature respectively successively.
- 2. used pair of suspension centre bar head jig of 220kV power line steel tuble pole electrified replacing linear insulator according to claim 1, the fastening bottom rail beam length of the Length Ratio 100mm of the load entablature described in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202991.7U CN203871745U (en) | 2014-04-24 | 2014-04-24 | Double-hoisting-point rod head fixture for live changing of linear insulator on steel pipe pole of 220kV line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202991.7U CN203871745U (en) | 2014-04-24 | 2014-04-24 | Double-hoisting-point rod head fixture for live changing of linear insulator on steel pipe pole of 220kV line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871745U true CN203871745U (en) | 2014-10-08 |
Family
ID=51652667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202991.7U CN203871745U (en) | 2014-04-24 | 2014-04-24 | Double-hoisting-point rod head fixture for live changing of linear insulator on steel pipe pole of 220kV line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871745U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928867A (en) * | 2014-04-24 | 2014-07-16 | 国家电网公司 | Double-hoisting-point pole head clamp for replacing straight-line insulator of 220 kV line steel pipe pole in electrified mode |
| CN104362544A (en) * | 2014-11-17 | 2015-02-18 | 国家电网公司 | Pulley type tower head clamp |
| CN105846356A (en) * | 2016-06-07 | 2016-08-10 | 国家电网公司 | Ground wire lifting fixture of steel tube tower for power transmission line |
| CN107947015A (en) * | 2017-11-30 | 2018-04-20 | 国家电网公司 | Tension-resistant rod live replacing device |
-
2014
- 2014-04-24 CN CN201420202991.7U patent/CN203871745U/en active IP Right Grant
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928867A (en) * | 2014-04-24 | 2014-07-16 | 国家电网公司 | Double-hoisting-point pole head clamp for replacing straight-line insulator of 220 kV line steel pipe pole in electrified mode |
| CN104362544A (en) * | 2014-11-17 | 2015-02-18 | 国家电网公司 | Pulley type tower head clamp |
| CN105846356A (en) * | 2016-06-07 | 2016-08-10 | 国家电网公司 | Ground wire lifting fixture of steel tube tower for power transmission line |
| CN107947015A (en) * | 2017-11-30 | 2018-04-20 | 国家电网公司 | Tension-resistant rod live replacing device |
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|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model |