CN205123128U - Change instrument of extra -high voltage earthing pole circuit straight line insulator with electricity - Google Patents
Change instrument of extra -high voltage earthing pole circuit straight line insulator with electricity Download PDFInfo
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- CN205123128U CN205123128U CN201520957482.XU CN201520957482U CN205123128U CN 205123128 U CN205123128 U CN 205123128U CN 201520957482 U CN201520957482 U CN 201520957482U CN 205123128 U CN205123128 U CN 205123128U
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Abstract
The utility model discloses a change instrument of extra -high voltage earthing pole circuit straight line insulator with electricity, including cross arm department base, lead screw, lead screw handle, insulating pull -rod and double -hung, cross arm department base all sets up on the lead screw with the lead screw handle, the one end of insulating pull -rod and the one end fixed connection of lead screw, the other end and the double -hung fixed connection of insulating pull -rod, instrument include the layer board device, the layer board device is including the portion of cup jointing, connecting portion and V type supporting seat, the layer board device through the portion of cup jointing fix cup joint in on the insulating pull -rod, the both ends of double -hung all are equipped with the support wire casing, ask the wire casing to be provided with anti -skidding portion. The utility model discloses a layer board device adopts V type supporting seat, and the wire yoke plate rocks about being difficult to take place, and the utility model discloses an asking the wire casing to be provided with anti -skidding portion, carrying the in -process that draws to the wire, the wire is difficult to take place to slide at anti -skidding inslot, has improved the stability of device, has reduced the operation degree of difficulty, has improved operation personnel's work efficiency.
Description
Technical field
The utility model relates to tool for power construction field, especially relates to a kind of instrument of charged for replacement ultra high voltage ground electrode circuit linear insulator.
Background technology
China's energy has that total amount is many, quantity per capita is few and the large feature of area distribution uneven three.Extra-high voltage direct-current transmission technology can meet remote, jumbo power demands, DC transmission system has two kinds of operational modes: monopole operating mode and bipolar operational mode, wherein monopole operating mode divides again metallic return mode and the one pole ground return circuit mode of the earth (or seawater) as loop, run under one pole ground return circuit mode, ground return circuit flows through whole system power; Under normal conditions, ground return circuit only has unsymmetrical current to flow through (its value is approximately about 1% of rated current) to bipolar line, but when a wire or one group of converter valve break down, and direct current system is appointed the earth can be utilized to make monopolar operation as loop.In order to reduce the impact of earth current on current conversion station power equipment etc., earth electrode is generally arranged in the position away from current conversion station, and distance can reach tens of to kilometer up to a hundred.Ground electrode circuit is and connects current conversion station and ground electrode circuit (being generally overhead transmission line), and its safe and stable operation is most important to whole direct current system.
Extra-high voltage direct current ground electrode circuit overvoltage lower, generally can not more than 35kV, press the consideration of 35kV system during the design of its tower head gap, tower body structure is according to 220kV line design.Ground electrode circuit wire needs by larger current when considering monopolar operation, therefore circuit generally adopts heat-resisting wire.Therefore ground electrode circuit live line working mode can with reference to the feature of 220kV circuit and distribution line live line working, the impact on live line working simultaneously when considering heat-resisting wire hot operation.According to a kind of suitable equal potential working method and corresponding power tool, guarantee safe distance during operation, avoid the direct contact wire of operating personnel, just can ensure that operating personnel is from high temperature and high-tension injury.
Application number: 201220228519.1, name is called: the utility model patent of electrified replacing linear level two division insulator dedicated lifting hook card, disclose the pallet arrangement of a kind of electrified replacing linear level two division insulator dedicated lifting hook card, the bottom of insulation pull-rod is set with sleeve, sleeve is linked up with holder line and is fixedly connected with, the supporting bracket that one piece of vertical equity is arranged is equipped with in sleeve side, and the yoke plate supporting seat of a U is equipped with in supporting bracket end, and yoke plate supporting seat is that transverse horizontal is arranged.Supporting bracket of the present utility model adopts U-shaped supporting seat, and the bottom space of U-shaped supporting seat is comparatively large, and when being used for supporting yoke plate, the easy double swerve of yoke plate, also can slide time serious, adds the task difficulty of operating personnel.
Utility model content
In view of this, the purpose of this utility model is for the deficiencies in the prior art, a kind of instrument of charged for replacement ultra high voltage ground electrode circuit linear insulator is provided, solving when utilizing prior art to carry out operation, easily there is the problem that double swerve and wire easily occur to slide in thread slot in wire yoke plate.
For achieving the above object, the utility model by the following technical solutions:
A kind of instrument of charged for replacement ultra high voltage ground electrode circuit linear insulator, comprise cross-arm place base, leading screw, leading screw handle, insulation pull-rod and double-hung, described cross-arm place base and leading screw handle are all arranged on described leading screw, described one end of insulation pull-rod is fixedly connected with one end of leading screw, the other end of described insulation pull-rod is fixedly connected with described double-hung, described instrument also comprises pallet arrangement, described pallet arrangement comprises socket part, connecting portion and V-type supporting seat, and described pallet arrangement is fixedly sleeved on described insulation pull-rod by socket part; The two ends of described double-hung are equipped with thread slot, and described thread slot is provided with anti-slip part.
Preferably, described anti-slip part is rubber projection.
Preferably, the opening angle scope of described V-type supporting seat is 30 °-40 °.
Preferably, described anti-slip part is riffled iron.
Preferably, the inwall of described V-type supporting seat is provided with anti-slip rubber.
Preferably, effective insulated lengths of described insulation pull-rod is no less than 0.6m.
The beneficial effects of the utility model are:
1, pallet arrangement structure of the present utility model is simple, is easy to safeguard, and is convenient to improve on the basis of original instrument, has saved improvement cost, has been easy to promote the use of on a large scale;
2, pallet arrangement of the present utility model adopts V-type supporting seat, when adopting V-type supporting seat to support wire yoke plate, because V-type supporting seat bottom space is narrow, double swerve is less likely to occur wire yoke plate, and because the inwall of V-type supporting seat is provided with anti-slip rubber, better prevent wire yoke plate to slide, improve the stability of device, decrease task difficulty, improve the operating efficiency of operating personnel;
3, thread slot of the present utility model is provided with anti-slip part, and after wire is positioned at anti-slip tank, in the process lifted wire, owing to having anti-slip part, wire is less likely to occur to slide in anti-slip tank, improves the stability of operation.
4, effective insulated lengths of insulation pull-rod of the present utility model is no less than 0.6m, ensure that the personal safety of operating personnel.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model pallet arrangement;
Fig. 3 is the structural representation of the utility model double-hung;
In figure: 1-leading screw, 2-leading screw handle, 3-cross-arm place base, 4-insulation pull-rod, 5-pallet arrangement, 6-double-hung, 51-socket part, 52-connecting portion, 53-V type supporting seat, 61-anti-slip part.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1
As shown in Figure 1, the utility model comprises cross-arm place base 3, leading screw 1, leading screw handle 2, insulation pull-rod 4 and double-hung, leading screw handle 2 is all arranged on leading screw, cross-arm place base 3 is fixedly installed on the lower end of leading screw handle 2 on leading screw 1, insulation one end of pull-rod 4 and one end of leading screw 1 are bolted to connection, the other end and the double-hung 6 of insulation pull-rod 4 are bolted to connection, and effective insulated lengths of insulation pull-rod 4 is no less than 0.6m; The utility model also comprises pallet arrangement 5, pallet arrangement 5 comprises socket part 51, connecting portion 52 and V-type supporting seat 53, socket part 51, connecting portion 52 and V-type supporting seat 53 weld together, pallet arrangement 5 is fixedly sleeved in the lower end of insulation pull-rod 4 by socket part 51, fixedly sleeved portion 51 is bolted on insulation pull-rod 4, the two ends of double-hung 6 are equipped with thread slot, thread slot be semicircle, thread slot is provided with anti-slip part 61, this anti-slip part 61 adopts quality of rubber materials, its surface is convex, increases the coefficient of friction of anti-slip part 61.
The opening angle scope of the V-type supporting seat of pallet arrangement 5 is 30 °-40 °, the opening of supporting seat is designed to V-type, aspect wire yoke plate is placed in supporting seat on the one hand, on the other hand, because the bottom space of V-structure is less compared to U-shaped structure, the mobilizable space of wire yoke plate is less, effectively can prevent the double swerve of wire yoke plate.The inwall of V-type supporting seat 53 is provided with anti-slip rubber, further prevent in lift process, the double swerve of wire yoke plate in V-type supporting seat 53 and slide anteroposterior, improve the stability of device, decrease task difficulty, improve the operating efficiency of operating personnel.
Operation principle of the present utility model is:
The utility model is used to carry out charged for replacement ultra high voltage earth electrode linear insulator when changing operation, on the gap between two angle bar first cross-arm place base 3 being arranged on cross-arm place directly over insulator, the load of whole instrument when changing insulator in order to bear; Then, hooked by wire with double-hung 6, two wires drop in two thread slots of double-hung 6 respectively, and allow yoke plate supporting seat hold up wire yoke plate, wire yoke plate is placed in V-type supporting seat 53 simultaneously.Double-hung 6 and pallet arrangement 5 is promoted by leading screw handle 2 adjusting screw 1 length, wire is raised under the effect of double-hung 6, the load transfer that insulator bears has been arrived on insulation pull-rod 4, at this moment insulator string relaxes, insulator is pulled down, wire yoke plate and insulator unclamp, and owing to there being pallet arrangement 5 pairs of wire yoke plates to provide support, wire yoke plate can not shake; Finally, change new insulator, namely complete the charged for replacement work of insulator.
Embodiment 2
The difference of the present embodiment and embodiment 1 is, the anti-slip part 61 of thread slot adopts riffled iron, and riffled iron is worked into the surface of thread slot by machining.
The operation principle of the present embodiment is identical with embodiment 1.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, other amendments that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. the instrument of a charged for replacement ultra high voltage ground electrode circuit linear insulator, comprise cross-arm place base, leading screw, leading screw handle, insulation pull-rod and double-hung, described cross-arm place base and leading screw handle are all arranged on described leading screw, described one end of insulation pull-rod is fixedly connected with one end of leading screw, the other end of described insulation pull-rod is fixedly connected with described double-hung, it is characterized in that: described instrument also comprises pallet arrangement, described pallet arrangement comprises socket part, connecting portion and V-type supporting seat, described pallet arrangement is fixedly sleeved on described insulation pull-rod by socket part, the two ends of described double-hung are equipped with thread slot, and described thread slot is provided with anti-slip part.
2. the instrument of a kind of charged for replacement ultra high voltage ground electrode circuit linear insulator according to claim 1, is characterized in that: described anti-slip part is rubber projection.
3. the instrument of a kind of charged for replacement ultra high voltage ground electrode circuit linear insulator according to claim 1, is characterized in that: the opening angle scope of described V-type supporting seat is 30 °-40 °.
4. the instrument of a kind of charged for replacement ultra high voltage ground electrode circuit linear insulator according to claim 1, is characterized in that: described anti-slip part is riffled iron.
5. the instrument of a kind of charged for replacement ultra high voltage ground electrode circuit linear insulator according to claim 3, is characterized in that: the inwall of described V-type supporting seat is provided with anti-slip rubber.
6. the instrument of a kind of charged for replacement ultra high voltage ground electrode circuit linear insulator according to claim 1, is characterized in that: effective insulated lengths of described insulation pull-rod is no less than 0.6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957482.XU CN205123128U (en) | 2015-11-26 | 2015-11-26 | Change instrument of extra -high voltage earthing pole circuit straight line insulator with electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957482.XU CN205123128U (en) | 2015-11-26 | 2015-11-26 | Change instrument of extra -high voltage earthing pole circuit straight line insulator with electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205123128U true CN205123128U (en) | 2016-03-30 |
Family
ID=55578704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520957482.XU Expired - Fee Related CN205123128U (en) | 2015-11-26 | 2015-11-26 | Change instrument of extra -high voltage earthing pole circuit straight line insulator with electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205123128U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337217A (en) * | 2015-11-26 | 2016-02-17 | 国网河南省电力公司检修公司 | Electrified replacing tool and method for extra-high-voltage grounding electrode line insulator |
| CN107658785A (en) * | 2017-10-16 | 2018-02-02 | 国网浙江嵊州市供电有限公司 | The pillar insulator quick replacement device of leading screw driving |
| 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 |
-
2015
- 2015-11-26 CN CN201520957482.XU patent/CN205123128U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337217A (en) * | 2015-11-26 | 2016-02-17 | 国网河南省电力公司检修公司 | Electrified replacing tool and method for extra-high-voltage grounding electrode line insulator |
| CN107658785A (en) * | 2017-10-16 | 2018-02-02 | 国网浙江嵊州市供电有限公司 | The pillar insulator quick replacement device of leading screw driving |
| CN107658785B (en) * | 2017-10-16 | 2023-12-15 | 国网浙江嵊州市供电有限公司 | Screw-driven column insulator quick replacement device |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20161126 |