CN203553741U - A conical sleeve combined type extra high voltage direct current power-transmission-line-used hard insulation pull rod - Google Patents
A conical sleeve combined type extra high voltage direct current power-transmission-line-used hard insulation pull rod Download PDFInfo
- Publication number
- CN203553741U CN203553741U CN201320638289.0U CN201320638289U CN203553741U CN 203553741 U CN203553741 U CN 203553741U CN 201320638289 U CN201320638289 U CN 201320638289U CN 203553741 U CN203553741 U CN 203553741U
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- China
- Prior art keywords
- conical
- high voltage
- direct current
- voltage direct
- extra high
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- Expired - Lifetime
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- 238000009413 insulation Methods 0.000 title claims abstract description 18
- 239000004593 Epoxy Substances 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 19
- 239000000725 suspension Substances 0.000 claims description 12
- 230000013011 mating Effects 0.000 claims description 11
- 239000006260 foam Substances 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000012212 insulator Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a conical sleeve combined type extra high voltage direct current power-transmission-line-used hard insulation pull rod comprising an epoxy pipe. The two ends of the epoxy pipe are respectively provided with conical pipe segments. The outer end calibers of the conical pipe segments are greater than inner end calibers. Inner conical sleeves sleeve the conical pipe segments, and conical surfaces, which are in mutual contact, of the inner conical sleeves and the conical pipe segments are matched. The inner conical sleeves at the two ends of the epoxy pipe are respectively in threaded connection with an intermediate outer joint sleeve and an intermediate inner joint sleeve. The intermediate external joint sleeve and the intermediate inner joint sleeve are respectively provided with matched screw threads. Through the intermediate external joint sleeve and the intermediate inner joint sleeve, the adjacent epoxy pipes are in abutted joint. The outer end inner conical sleeve of the epoxy pipe on the outer end is in threaded connection with a rod end joint. The conical pipe segments are arranged at the two ends of the epoxy pipe of the utility model, and through the conical surfaces, connection with the inner conical sleeve and the joint is realized. In a pulling process, the more the pull rod is puller, the tighter the connection is, so that falling of the epoxy pipe from the joint is effectively prevented, and safety of personnel and equipment is guaranteed.
Description
technical field:
The utility model relates to a kind of power circuit maintenance tool, particularly relates to a kind of tapered sleeve mating type extra high voltage direct current transmission line rigid insulation pull-rod.
background technology:
China's electrical distribution inequality, need long distance powedr transmission, in order to reduce the wastage and to improve power transmission efficiency, adopt more and more ultra high voltage and super UHV transmission, correspondingly the diameter of power transmission line and ground wire is also increasing, its weight is also very large, when replacing linear insulator string under electrification, need to be by lifting wire, the intensity of existing insulation pull-rod is low and structural design is unreasonable, easily occurs that insulation pull-rod damages under large weight pulling force, and hidden danger causes the accident, also exist in addition effort time-consuming, even have the deficiency of personal injury.
utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of reasonable in design, intensity is high, serial connection is convenient, bearing capacity is large and operating efficiency is high tapered sleeve mating type extra high voltage direct current transmission line rigid insulation pull-rod is provided.
The technical solution of the utility model is: a kind of tapered sleeve mating type extra high voltage direct current transmission line rigid insulation pull-rod, contain epoxy tube, the two ends of described epoxy tube are respectively arranged with Taper Pipe section, the outer end bore of described Taper Pipe section is greater than inner bore, in described Taper Pipe section, be set with inner conical drogue, the two conical surface contacting matches, and described inner conical drogue is connected with excellent end connector by screw thread, on described epoxy tube, is provided with suspension ring.
The inner conical drogue at described epoxy tube two ends is threaded with female connector outside centre and middle interior female connector respectively, outside described centre, female connector is respectively arranged with middle interior female connector the screw thread matching, by female connector outside described centre and middle interior female connector, adjacent described epoxy tube is docking together, on the described epoxy tube of outermost end, is provided with described suspension ring and excellent end connector.In described epoxy tube, be filled with foam core.Described suspension ring consist of annulus cover and annulus hanger, and described annulus hanger is more than one, are uniformly distributed along the circumference on the outer surface of described annulus cover, and described annulus cover is sleeved on described epoxy tube.Described excellent end connector is provided with bolt hole, in described bolt hole, is provided with bolt; Described excellent end connector and inner conical drogue are made by metal material.
The beneficial effects of the utility model are:
1, the utility model epoxy tube two ends are provided with Taper Pipe section, by the conical surface, are connected with inner conical drogue and joint, in traction process, draw tighter and tighter, effectively prevent epoxy tube and Joint's falling off, have guaranteed the safety of personnel and equipment.
2, between the utility model inner conical drogue and joint, adopt and be threaded, be convenient to dismounting, in the middle of can increasing and decreasing as required, the quantity of epoxy tube, has reached different body of rod length.
3, two kinds of the utility model transition joint outer female connector of employing and interior female connectors, and one end of two kinds of joints is threaded mutually, and the other end is connected with inner conical drogue respectively, is convenient to like this two epoxy tubes and fast connects.
4, on the utility model epoxy tube, be provided with suspension ring, and suspension ring quantity is more than one, is convenient to fast and easy lifting.
5, the utility model is reasonable in design, intensity is high, serial connection is convenient, bearing capacity is large and operating efficiency is high, and it is applied widely, is especially applied to the replacing insulator of 800kV extra high voltage direct current transmission line, is easy to promotion and implementation, has good economic benefit.
accompanying drawing explanation:
Fig. 1 is the structure chart of tapered sleeve mating type extra high voltage direct current transmission line rigid insulation pull-rod.
embodiment:
Embodiment: referring to Fig. 1, in figure, 1-rod end connector, 2-Taper Pipe section, 3-inner conical drogue, 4-suspension ring, 5-foam core, 6-epoxy tube, outer female connector in the middle of 7-, interior female connector in the middle of 8-.
Tapered sleeve mating type extra high voltage direct current transmission line contains epoxy tube 6 with rigid insulation pull-rod, wherein: the two ends of epoxy tube 6 are respectively arranged with Taper Pipe section 2, the outer end bore of Taper Pipe section 2 is greater than inner bore, in Taper Pipe section 2, be set with inner conical drogue 3, the two conical surface contacting matches, inner conical drogue 3 is connected with excellent end connector 1 by screw thread, and excellent end connector 1 is provided with bolt hole, is provided with bolt in bolt hole.On epoxy tube 6, be provided with suspension ring 4.
While needing multiple epoxy tubes 6 to dock, the inner conical drogue 3 at epoxy tube 6 two ends is threaded with female connector outside centre 7 and middle interior female connector 8 respectively, middle outer female connector 7 is respectively arranged with middle interior female connector 8 screw thread matching, by female connector outside centre 7 and middle interior female connector 8, adjacent epoxy tube 6 is docking together, on the epoxy tube 6 of outermost end, is provided with suspension ring 4 and excellent end connector 1.
In epoxy tube 6, be filled with foam core 5.Suspension ring 4 consist of annulus cover and annulus hanger, and annulus hanger is more than one, are uniformly distributed along the circumference on the outer surface of annulus cover, and annulus cover is sleeved on epoxy tube 6.
The utility model is in ± 800kV extra high voltage direct current transmission line replacing linear insulator string under electrification operation, for replacing mechanical load and the electric insulation intensity of wire that linear insulator chain bears, carries out the rigid insulation instrument of lifting wire operation.Its nominal operation load is 150kN, and coefficient of safety gets 2.5, is the live line working rigid insulation pull-rod of current domestic live load maximum.The utility model coordinates with great tonnage hydraulic wire grip, six-multiple conductor line lifter, can effectively solve 1000mm
2large-section lead ± difficult problem of 800kV extra high voltage direct current transmission line replacing linear insulator string under electrification, filled up current domestic 1000mm
2large-section lead ± blank of 800kV extra high voltage direct current transmission line charged for replacement Special-purpose lifting insulating tool.
The above, be only preferred embodiment of the present utility model, not the utility model done to any pro forma restriction, and any simple modification that every foundation technical spirit of the present utility model is done, all still belongs in the scope of technical solutions of the utility model.
Claims (5)
1. a tapered sleeve mating type extra high voltage direct current transmission line rigid insulation pull-rod, contain epoxy tube, it is characterized in that: the two ends of described epoxy tube are respectively arranged with Taper Pipe section, the outer end bore of described Taper Pipe section is greater than inner bore, in described Taper Pipe section, be set with inner conical drogue, the two conical surface contacting matches, and described inner conical drogue is connected with excellent end connector by screw thread, on described epoxy tube, is provided with suspension ring.
2. tapered sleeve mating type extra high voltage direct current transmission line rigid insulation pull-rod according to claim 1, it is characterized in that: the inner conical drogue at described epoxy tube two ends is threaded with female connector outside centre and middle interior female connector respectively, outside described centre, female connector is respectively arranged with middle interior female connector the screw thread matching, by female connector outside described centre and middle interior female connector, adjacent described epoxy tube is docking together, on the described epoxy tube of outermost end, is provided with described suspension ring and excellent end connector.
3. tapered sleeve mating type extra high voltage direct current transmission line rigid insulation pull-rod according to claim 1, is characterized in that: in described epoxy tube, be filled with foam core.
4. tapered sleeve mating type extra high voltage direct current transmission line rigid insulation pull-rod according to claim 1, it is characterized in that: described suspension ring consist of annulus cover and annulus hanger, and, described annulus hanger is more than one, be uniformly distributed along the circumference on the outer surface of described annulus cover, described annulus cover is sleeved on described epoxy tube.
5. tapered sleeve mating type extra high voltage direct current transmission line rigid insulation pull-rod according to claim 1, is characterized in that: described excellent end connector is provided with bolt hole, in described bolt hole, is provided with bolt; Described excellent end connector and inner conical drogue are made by metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638289.0U CN203553741U (en) | 2013-10-16 | 2013-10-16 | A conical sleeve combined type extra high voltage direct current power-transmission-line-used hard insulation pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638289.0U CN203553741U (en) | 2013-10-16 | 2013-10-16 | A conical sleeve combined type extra high voltage direct current power-transmission-line-used hard insulation pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203553741U true CN203553741U (en) | 2014-04-16 |
Family
ID=50471810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638289.0U Expired - Lifetime CN203553741U (en) | 2013-10-16 | 2013-10-16 | A conical sleeve combined type extra high voltage direct current power-transmission-line-used hard insulation pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203553741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532045A (en) * | 2013-10-16 | 2014-01-22 | 国家电网公司 | 150kN hard insulating pull rod of 800kV ultrahigh-voltage direct-current power transmission line |
| CN105244814A (en) * | 2015-11-05 | 2016-01-13 | 国网湖南省电力公司带电作业中心 | Extra-high voltage high-strength rainproof insulating pull rod |
| CN110649502A (en) * | 2018-06-27 | 2020-01-03 | 国网河南省电力公司检修公司 | 200 kN-level hard insulation pull rod of +/-1100 kV extra-high voltage direct-current transmission line |
-
2013
- 2013-10-16 CN CN201320638289.0U patent/CN203553741U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532045A (en) * | 2013-10-16 | 2014-01-22 | 国家电网公司 | 150kN hard insulating pull rod of 800kV ultrahigh-voltage direct-current power transmission line |
| CN103532045B (en) * | 2013-10-16 | 2015-10-28 | 国家电网公司 | 800kV extra-high voltage direct-current transmission line 150kN level rigid insulation pull-rod |
| CN105244814A (en) * | 2015-11-05 | 2016-01-13 | 国网湖南省电力公司带电作业中心 | Extra-high voltage high-strength rainproof insulating pull rod |
| CN110649502A (en) * | 2018-06-27 | 2020-01-03 | 国网河南省电力公司检修公司 | 200 kN-level hard insulation pull rod of +/-1100 kV extra-high voltage direct-current transmission line |
| CN110649502B (en) * | 2018-06-27 | 2021-11-05 | 国网河南省电力公司检修公司 | 200 kN-level hard insulation pull rod of +/-1100 kV extra-high voltage direct-current transmission line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |