CN203774687U - Special-purpose replacing tool for suspension clamp of +/-800kV extra-high tension direct current line wire - Google Patents
Special-purpose replacing tool for suspension clamp of +/-800kV extra-high tension direct current line wire Download PDFInfo
- Publication number
- CN203774687U CN203774687U CN201420161523.XU CN201420161523U CN203774687U CN 203774687 U CN203774687 U CN 203774687U CN 201420161523 U CN201420161523 U CN 201420161523U CN 203774687 U CN203774687 U CN 203774687U
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- suspension clamp
- leading screw
- suspension
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- 239000000725 suspension Substances 0.000 title abstract description 18
- 239000004020 conductor Substances 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000000969 carrier Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
To solve the problem of lack of an efficient and reliable replacing tool dedicated for a suspension clamp, the utility model provides a special-purpose replacing tool for a suspension clamp of a +/-800kV extra-high tension direct current line wire. The special-purpose replacing tool comprises three kinds of rigid members, which are wire lifting plates, screws and a T-shaped special bracket, so that the mass of the tool is resolved. During use, the T-shaped special bracket works on a suspension yoke plate directly, the screws pass through the two ends of the bracket, and the lower end of each of the two screws is connected with one wire lifting plate. The suspension yoke plate on the wire is used for support and thus the stress part of the wire is transferred to the special replacing tool from the suspension clamp and the suspension yoke plate serves as a hanging point. Therefore, the problem of damage to material caused by wriggling of the contact surface between the tool and the material is solved, the working efficiency and safety are improved, the problem of cumbersome operation of a chain block is solved and further the suspension clamp of the +/-800kV extra-high tension direct current line wire can be replaced easily, rapidly and efficiently under the conditions of electrification or power failure.
Description
Technical field
The utility model belongs to suspension clamp for electric line service kit, especially one ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool.
Background technology
± 800kV UHVDC Transmission Lines wire is under the support of suspension clamp, is separately fixed in six through holes of hanging yoke plate by cylindrical arrangement, is fixed on shaft tower through the V-type insulator string being connected with hanging yoke plate.Compared with conventional supertension line, ± 800kV UHVDC Transmission Lines conductor cross-section is large, causes vertical load significantly to increase, and for avoiding wire to deviate from, as the suspension clamp of wire hard point, its performance requirement is also more and more higher.
Suspension clamp be exposed in atmosphere and be subject to for a long time conductor vibration, strong mechanical stress, suddenly cold and hot, the impact of the adverse circumstances such as expose to wind and rain, there will be the phenomenons such as suspension clamp cracking, corrosion, distortion.As processed not in time, defective suspension clamp, under dynamo-electric effect, easily aggravates deterioratedly, even likely causes the even broken string accident that goes offline, and brings serious potential safety hazard to operation of power networks.In addition, ± 800kV suspension clamp supports the use to fix and hangs wire with protecting lines, when protecting lines fractures, also must first pull down suspension clamp and can change.But traditional dismantling device uses heavy, the mode of tightening up can cause instrument and material damage, and complex operation, inefficiency.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of design science reasonable, simple and practical, easy to operate efficiently ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool.
For solving the problems of the technologies described above, the utility model is by the following technical solutions: ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool, comprise and carry line plate, leading screw, T-shaped special carrier, carry the middle bolt hole that connects leading screw that has of line plate, two ends have draw-in groove; There is the age of a draught animal at leading screw middle part; T-shaped special carrier two ends have is inserted in the slotted eye of leading screw and is furnished with anticreep backing pin, and lower end, middle part has the draw-in groove perpendicular to bearing two ends.
Leading screw is inserted in respectively at T-shaped special carrier two ends, and line plate is carried in one of the each connection in two rhizoid thick stick lower ends.
Two rhizoid thick stick lower ends respectively connect one by an extending connector and carry line plate.
Extending connector two ends have bolt hole.
For the current shortage problem of suspension clamp special replacement tool effectively reliably, inventor has designed one ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool, comprise and carry line plate, leading screw, three kinds of rigid members of T-shaped special carrier, the instrument quality of making is decomposed; When use, T-shaped special carrier acts directly on hanging yoke plate, and leading screw is inserted in respectively at bearing two ends, and line plate is carried in one of the each connection in two rhizoid thick stick lower ends.It is support that the utility model utilizes the hanging yoke plate on wire, wire force part is transferred to special replacement tool from suspension clamp, hanging yoke plate is equivalent to " hanging point ", avoid DO-IT-YOURSELF DIY contact-making surface to wriggle and caused the problem of material damage, operating efficiency and fail safe are improved, avoided the problem of chain block complex operation, thereby realize, right ± 800kV UHVDC Transmission Lines hanging conductor clamp carries out easily, the charged or replacing that has a power failure fast and efficiently.
Brief description of the drawings
Fig. 1 is the structural representation of carrying line plate in the utility model special replacement tool.
Fig. 2 is the structural representation of leading screw in the utility model special replacement tool.
Fig. 3 is the structural representation of T-shaped special carrier in the utility model special replacement tool.
Fig. 4 is the structural representation of extending connector in the utility model special replacement tool.
Fig. 5 is that the utility model special replacement tool replaces with the layer line assembled state schematic diagram in when folder.
Fig. 6 is the assembled state schematic diagram during the utility model special replacement tool is changed or when lower floor's wire clamp.
Use view when Fig. 7 is the utility model special replacement tool replacing middle level wire clamp.
In figure: 1 carries line plate, 2 leading screws, 3T type special carrier, 4 extending connectors, 5 hanging yoke plates.
Embodiment
As shown in Fig. 1 to 7, the utility model ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool, comprises and carries line plate 1, leading screw 2, T-shaped special carrier 3, carries the middle bolt hole that connects leading screw that has of line plate, and two ends have draw-in groove; There is the age of a draught animal at leading screw middle part; T-shaped special carrier two ends have is inserted in the slotted eye of leading screw and is furnished with anticreep backing pin, and lower end, middle part has the draw-in groove perpendicular to bearing two ends.
When use, utilize hanging yoke plate 5 for supporting, T-shaped special carrier is sleeved on hanging yoke plate by draw-in groove, and connects with high-strength bolt; Be inserted in respectively leading screw at T-shaped special carrier two ends, line plate is carried in one of the each connection in two rhizoid thick stick lower ends.According to same layer conductor spacing difference, to carry line plate and can be divided into long and short two kinds, upper and lower layer conductor shares one, and to carry line plate be short slab, middle layer conductor uses long slab.While replacing with layer line folder, leading screw directly connects and carries line plate; In replacing, lower floor's wire clamp, the extending connector 4 that should have a different length of bolt hole by two ends connects.Then, make stressed the transferring to completely on special replacement tool of right angle link plate of wire clamp by tightening up leading screw lifting lead wire, finally complete replacing operation.
The rated load of special replacement tool of the present utility model is 110kN, the wire clamp that is 210kN by maximal destruction loading is as the foundation of the rated load value of kit, and the rated load value of instrument is in accordance with 4.1.3 regulation value formula: P=P0 × 25%+5(kN in " DL/T463-2006 live line working insulator clamp apparatus ") calculate.When solid conductor lifting: P=210 × 25%+5=57.5(kN), get 60KN; While lifting with layer conductor: P=210 × 2 × 25%+5=110(kN simultaneously), consider to be applicable to open wire clamp inspection work, select same layer conductor lifting method simultaneously, the rated load of development tool is 110kN.
The height that inventor passes through to determine hanging yoke plate thickness, arrives upper, middle and lower layer conductor with split layer wire pitch, wire radius and hanging yoke plate, appropriate design, reasonable material, the size of optimizing structure, obtained of the present utility model ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool.Compared with conventional tool, this instrument is simply light, easy to operate, safe and efficient.
Claims (4)
1. ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool, comprises and carries line plate, leading screw, T-shaped special carrier, it is characterized in that: described in carry in the middle of line plate and have the bolt hole that connects leading screw, two ends have draw-in groove; There is the age of a draught animal at described leading screw middle part; Described T-shaped special carrier two ends have is inserted in the slotted eye of leading screw and is furnished with anticreep backing pin, and lower end, middle part has the draw-in groove perpendicular to bearing two ends.
2. according to claim 1 ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool, is characterized in that: leading screw is inserted in respectively at described T-shaped special carrier two ends, and line plate is carried in one of the each connection in two rhizoid thick stick lower ends.
3. according to claim 2 ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool, is characterized in that: described two rhizoid thick stick lower ends respectively connect one by an extending connector and carry line plate.
4. according to claim 3 ± 800kV UHVDC Transmission Lines hanging conductor clamp special replacement tool, is characterized in that: described extending connector two ends have bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420161523.XU CN203774687U (en) | 2014-04-01 | 2014-04-01 | Special-purpose replacing tool for suspension clamp of +/-800kV extra-high tension direct current line wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420161523.XU CN203774687U (en) | 2014-04-01 | 2014-04-01 | Special-purpose replacing tool for suspension clamp of +/-800kV extra-high tension direct current line wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774687U true CN203774687U (en) | 2014-08-13 |
Family
ID=51291839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420161523.XU Active CN203774687U (en) | 2014-04-01 | 2014-04-01 | Special-purpose replacing tool for suspension clamp of +/-800kV extra-high tension direct current line wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774687U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706822A (en) * | 2017-11-15 | 2018-02-16 | 国家电网公司 | Equipotential suspension clamp changes instrument |
| CN108879479A (en) * | 2018-07-31 | 2018-11-23 | 国网河南省电力公司检修公司 | Extra high voltage direct current transmission line electrified replacing linear tower wire clamp device and method |
-
2014
- 2014-04-01 CN CN201420161523.XU patent/CN203774687U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706822A (en) * | 2017-11-15 | 2018-02-16 | 国家电网公司 | Equipotential suspension clamp changes instrument |
| CN108879479A (en) * | 2018-07-31 | 2018-11-23 | 国网河南省电力公司检修公司 | Extra high voltage direct current transmission line electrified replacing linear tower wire clamp device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |