CN106451233A - Detachable clamping apparatus for replacement of monolithic insulator and method for replacement of monolithic insulator - Google Patents
Detachable clamping apparatus for replacement of monolithic insulator and method for replacement of monolithic insulator Download PDFInfo
- Publication number
- CN106451233A CN106451233A CN201610960245.8A CN201610960245A CN106451233A CN 106451233 A CN106451233 A CN 106451233A CN 201610960245 A CN201610960245 A CN 201610960245A CN 106451233 A CN106451233 A CN 106451233A
- Authority
- CN
- China
- Prior art keywords
- fixture
- insulator
- screw mandrel
- detachable
- clamping apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000035882 stress Effects 0.000 description 8
- 230000006872 improvement Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
Abstract
The invention discloses a detachable clamping apparatus for replacement of a monolithic insulator. In order to solve the technical problem, mentioned in the background technology, of a clamping apparatus used for replacing the monolithic insulator, the detachable clamping apparatus for replacement of the monolithic insulator is provided and comprises a front clamp, a rear clamp and two groups of screw rod units; the front clamp, the rear clamp and the two groups of screw rod units form a closed and quadrilateral clamping apparatus body. The invention further discloses a method for replacement of the monolithic insulator. The method includes the following steps: 1, detecting the number of zero-value insulators on the to-be-replaced insulator; 2, installing the clamping apparatus; 3, clamping an upper lining and a lower lining in the clamping apparatus; 4, detecting the stress received by the clamping apparatus; 5, at the same time, tightening screw rods on the clamping apparatus; 6, replacing the zero-value insulators; 7, releasing and the disassembling the clamping apparatus. The detachable clamping apparatus has the advantages of improving the reliability of electric transmission lines and the work efficiency.
Description
Technical field
The present invention relates to a kind of instrument, concretely relate to a kind of detachable fixture changing monolithic insulator, with
When the invention still further relates to using fixture carry out change monolithic insulator method.
Background technology
Insulator is important ingredient in power circuit, and the insulator that transmission line of electricity uses is in During Process of Long-term Operation
In, undergo the impact of running environment factor, factor of natural environment and anthropic factor, lead to insulator occur aging, damaged,
The defects such as null value.Therefore, zero resistance insulator need to be changed.
In recent years, because insulator producer increases, the steel cap size also disunity of manufactured porcelain insulator, more in the past
Change when the fixture of monolithic insulator uses every time and will carry Multiple Type to scene, and pass to operating personnel and compare, time-consuming
Arduously.
Original change monolithic insulator use fixture, run into different model size steel cap when, needs will in front and back
Card is overall to be changed.This project mainly solves the problems, such as the stress of liner, the overall problems of mechanical strength of fixture.Changing insulation
In the process of son, for the steel cap of different model size, need to prepare the fixture of different model, in Renewal process, first will be really
Determine steel shape for hat number, more corresponding fixture is installed, these fixtures all must take scene to, the process of replacing is complex.
Content of the invention
The technical problem to be solved is：Change monolithic insulator for referring in background technology using fixture
A difficult problem.
The design philosophy of the present invention is, when changing insulator, using the mode of more changeable liner, adapts to different model size
Steel cap.
It is an object of the present invention to provide one kind, in order to improve transmission line of electricity reliability, improves working performance, develop and change list
The fixture of piece insulator detachable.
For solving above-mentioned technical problem, the concrete technical scheme that the present invention adopts is：
A kind of detachable fixture changing monolithic insulator, including front card, rear card, two groups of screw mandrel units, front card, rear card
And two groups of screw mandrel units constitute " tetragon " fixture body closed；
Two groups of screw mandrel units respectively constitute symmetrical two side of fixture body, and it is contrary that screw mandrel unit all includes two screw threads
Screw mandrel, is provided for adjusting the adjustment unit of screw mandrel length in the junction of two screw mandrels, and a screw mandrel is led to front card junction
Cross connector to be rotatedly connected, another screw mandrel is rotatedly connected by connector with rear card junction；
Front card and rear card all include fixture body and fixture detachable cap, and the two ends of fixture body, all by connector connection wire rod, are blocked
Specific center evagination arranges cutting ferrule under an arc, and fixture detachable cap is arranged an arc being matched with cutting ferrule under arc
Upper cutting ferrule, one end of fixture detachable cap is rotatably arranged on fixture body, the other end and the removable connection of fixture body；
Setting lower liner in cutting ferrule under arc, the upper liner of setting in cutting ferrule on arc；Lining setting stepped groove in upper,
It is near screw mandrel place side that stepped groove is located at；Concave groove is arranged on lower liner, concave groove is located remotely from screw mandrel
Place side.
The detachable fixture of the replacing monolithic insulator in technical solution of the present invention, it is several that card has screw mandrel, front card, rear card
Part forms, and screw mandrel adopts carbon fibre material to make, and the insulator model according to being applied to 500kV is selected.Front card, is fixed on absolutely
So as to Impact direction refers to same insulator ferrum foot on edge steel cap.After block, be fixed on insulator steel cap so as to Impact direction the back of the body
To insulator ferrum foot.In order to strengthen safety coefficient, made using stainless steel material.
Upper liner and lower liner are the cores of this instrument, for different model, the porcelain of specification or glass insulator, can
In the built-in inner core tool changing different model of single insulator holder.Liner is valvular structure, more draws tighter, thus ensureing its intensity during stress
And reliability.
Improvement to technical solution of the present invention, adjustment unit includes the swivel nut being simultaneously connected with two contrary screw mandrels of screw thread
With the activity rod set being arranged on outside swivel nut；Motion bar puts the screw mandrel gear that setting automatically adjusts screw mandrel state, and screw mandrel includes
Tighten up shelves, loosen shelves and neutral gear；Motion bar puts the manual screw mandrel crank of setting.Adjustment unit adopts the knot that the present invention provides
Structure, its objective is to reduce the labor intensity of operator's operation now.
Improvement to technical solution of the present invention, the removable of fixture detachable cap and fixture body is connected as the anti-of bolt and double nut
Send to take off and be fastenedly connected mode.
Improvement to technical solution of the present invention, lower liner and upper liner are all fastened on card under arc respectively by sunk screw
In cutting ferrule on set and arc.
Improvement to technical solution of the present invention, the section of concave groove is in "U" shaped.
The present invention also proposes a kind of method that monolithic insulator changed by employing fixture, comprises the steps：
The piece number of the zero resistance insulator on step 1, detection insulator to be replaced；
Step 2, according to need in step 1 change zero resistance insulator, install upper liner and the lower liner in fixture；
Step 3, the fixture in step 2 is snapped fitted on insulator to be replaced the rank so that upper interior lining in fixture
Ladder type groove engage insulator on steel cap, the concave groove on the lower liner in fixture be engaged to next insulator steel cap with
In the gap of porcelain portion interfaces；
Step 4, the stress of verification fixture；
Step 5, tightening up screw mandrel on fixture so that needing the zero resistance insulator changed not stress simultaneously, transferring a force to
On fixture；
Step 6, replacing zero resistance insulator；
Step 7, loosen fixture, the lower fixture of dismounting.
Improvement further to method invention, goes up liner in step 3 and lower liner has the prestressing force displacement of 5mm.The method
The prestressing force displacement of the 5mm of middle setting, can reach the purpose closely pulling.
Compared with prior art, its advantage is the present invention：
1st, the fixture of the present invention, the only steel cap of more changeable liner adaptation different model size.
2nd, the fixture of the present invention, decreases operation number, improves the safety of work.
3rd, the fixture of the present invention, updates job instruction, improves work efficiency, reduces job costs.
4th, the fixture of the present invention, improves transmission line of electricity reliability, improves working performance.
Brief description
Fig. 1 is the structural representation of the present embodiment fixture.
Fig. 2 is the schematic cross-section of upper liner.
Fig. 3 is the schematic cross-section of lower liner.
In figure：1st, front card；2nd, rear card；3rd, screw mandrel unit；4th, screw mandrel；5th, adjustment unit；6th, connector；7th, fixture body；8、
Fixture detachable cap；9th, swivel nut；10th, activity rod set, 11, screw mandrel crank, 12, bolt.
Specific embodiment
Below technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described enforcement
Example.
Understandable for making present disclosure become apparent from, do further below in conjunction with accompanying drawing 1-3 and specific embodiment
Description.
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
Embodiment：
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combine.To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in figure 1, change the structural representation of the detachable fixture of monolithic insulator for the present embodiment；This replacing is single
The detachable fixture of piece insulator, including before card 1, block 2, two groups of screw mandrel units 3 afterwards, front card 1, rear card 2 and two groups of screw mandrels
Unit 3 constitutes " tetragon " fixture body of a closing.
As shown in figure 1, two groups of screw mandrel units 3 respectively constitute symmetrical two side of fixture body, screw mandrel unit all includes two
The contrary screw mandrel of root screw thread 4, is provided for adjusting the adjustment unit 5 of screw mandrel length, adjustment unit 5 in the junction of two screw mandrels
Including the swivel nut 9 being simultaneously connected with two contrary screw mandrels of screw thread be arranged on the activity rod set 10 outside swivel nut；Activity rod set
Upper setting automatically adjusts the screw mandrel gear of screw mandrel state, and screw mandrel includes tightening up shelves, loosens shelves and neutral gear；Motion bar puts setting can
Manual screw mandrel crank 11.One screw mandrel 4 is rotatedly connected by connector 6 with front card junction, and another screw mandrel 4 is with rear card even
The place of connecing is rotatedly connected by connector 6.
Front card 1 and rear card 2 all include fixture body 7 and fixture detachable cap 8, and the two ends of fixture body are all by connector connecting filament
Bar, the center evagination of fixture body arranges cutting ferrule under an arc, and setting one on fixture detachable cap is matched with cutting ferrule under arc
Arc on cutting ferrule, one end of fixture detachable cap is rotatably arranged on fixture body, the other end and the removable connection of fixture body；Fixture is lived
Removable anti-the sending being connected as bolt 12 and double nut of lid 8 and fixture body 7 de- is fastenedly connected mode.Setting in cutting ferrule under arc
Lower liner, the upper liner of setting in cutting ferrule on arc；Lower liner and upper liner are all fastened on card under arc respectively by sunk screw
In cutting ferrule on set and arc.Lining setting stepped groove in upper, it is near screw mandrel place side, i.e. ladder that stepped groove is located at
Edge inside formula groove liner on this fixture；As shown in Figure 2.Concave groove, concave groove position are arranged on lower liner
In away from screw mandrel place side, i.e. edge outside this fixture lower liner for the concave groove；The section of concave groove is in " U " word
Shape.As shown in Figure 3.
The method changing monolithic insulator using fixture, comprises the steps：
The piece number of the zero resistance insulator on step 1, detection insulator to be replaced；
Step 2, according to need in step 1 change zero resistance insulator, install upper liner and the lower liner in fixture；
Step 3, the fixture in step 2 is snapped fitted on insulator to be replaced the rank so that upper interior lining in fixture
Ladder type groove engage insulator on steel cap, the concave groove on the lower liner in fixture be engaged to next insulator steel cap with
In the gap of porcelain portion interfaces, tightening bolt simultaneously；Upper liner in this step and lower liner have the prestressing force position of 5mm
Move.In the method, the prestressing force displacement of the 5mm of setting, can reach the purpose closely pulling.
Step 4, the stress of verification fixture；Check in this step whether fixture stress is good, and both sides screw mandrel is tightened up simultaneously, is subject to
Power is uniform；
Step 5, tightening up screw mandrel on fixture so that needing the zero resistance insulator changed not stress simultaneously, transferring a force to
On fixture；
Step 6, replacing zero resistance insulator；In this step on the basis of installing fixture, carry out changing zero resistance insulator,
The method changing zero resistance insulator is conventional method of the prior art, and this method is not described in detail.
Step 7, loosen fixture, the lower fixture of dismounting.
The replacement operation flow process carrying out changing insulator chain using the fixture of the present embodiment is as follows：
(1) use front first detect zero resistance insulator, in accordance with relevant livewire work regulation, outstanding it should be noted that zero resistance insulator piece number
And safe distance must not be exceeded.
(2) position according to equipment situation and required replacing insulator, selects to be suitable for the model of onsite application.
(3), when assembling front and rear card, forward and backward taper should be firmly believed, first liner is firmly believed direction and be arranged on steel cap, then corresponding
The inverted cone degree of fixture put, then tighten the closing screw of closed type fixture again, if also must be tightened with end chucking appliance accordingly fixed
Position screw.
(4) check whether fixture stress is good, and both sides screw mandrel is tightened up simultaneously, uniform force.Allow to be lined with 5mm when initial
Prestressing force moves, to reach the purpose of tight tension.
(5) 3 insulators are had to be shorted (short 3 cards 4), replaceable any of which piece in the range of fixture.
(6) spring pin to be installed when recovering, true no problem rear removable tools.
Part that the present invention does not relate to is all same as the prior art or can be realized using prior art.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of detachable fixture changing monolithic insulator is it is characterised in that include front card, rear card, two groups of screw mandrel units,
Front card, rear card and two groups of screw mandrel units constitute " tetragon " fixture body closed；
Two groups of screw mandrel units respectively constitute symmetrical two side of fixture body, and screw mandrel unit all includes two contrary silks of screw thread
Bar, is provided for adjusting the adjustment unit of screw mandrel length in the junction of two screw mandrels, and a screw mandrel is passed through with front card junction
Connector is rotatedly connected, and another screw mandrel is rotatedly connected by connector with rear card junction；
Front card and rear card all include fixture body and fixture detachable cap, and the two ends of fixture body are all by connector connection wire rod, fixture body
Center evagination cutting ferrule under one arc is set, fixture detachable cap arranges card on an arc matching with cutting ferrule under arc
Set, one end of fixture detachable cap is rotatably arranged on fixture body, the other end and the removable connection of fixture body；
Setting lower liner in cutting ferrule under arc, the upper liner of setting in cutting ferrule on arc；Lining setting stepped groove, ladder in upper
It is near screw mandrel place side that formula groove is located at；Concave groove is arranged on lower liner, concave groove is located remotely from screw mandrel and is located
Side.
2. as claimed in claim 1 change monolithic insulator detachable fixture it is characterised in that adjustment unit include with
The two contrary screw mandrels of the screw thread swivel nut being simultaneously connected with and the activity rod sets being arranged on outside swivel nut；Motion bar puts setting automatically
Adjust the screw mandrel gear of screw mandrel state, screw mandrel includes tightening up shelves, loosens shelves and neutral gear；Motion bar puts the manual screw mandrel of setting
Crank.
3. the detachable fixture changing monolithic insulator as claimed in claim 1 is it is characterised in that fixture detachable cap and fixture
Removable anti-the sending being connected as bolt and double nut of body de- is fastenedly connected mode.
4. the detachable fixture changing monolithic insulator as claimed in claim 1 is it is characterised in that lower liner and upper liner
All it is fastened on respectively in cutting ferrule on cutting ferrule and arc under arc by sunk screw.
5. as claimed in claim 1 change monolithic insulator detachable fixture it is characterised in that concave groove cut
Face is in "U" shaped.
6. the employing fixture as described in claim 1-5 changes the method for monolithic insulator it is characterised in that including following walking
Suddenly：
The piece number of the zero resistance insulator on step 1, detection insulator to be replaced；
Step 2, according to need in step 1 change zero resistance insulator, install upper liner and the lower liner in fixture；
Step 3, the fixture in step 2 is snapped fitted on insulator to be replaced the staged so that upper interior lining in fixture
Groove engages the steel cap on insulator, and the concave groove on the lower liner in fixture is engaged to next insulator steel cap and porcelain
In the gap of portion interfaces；
Step 4, the stress of verification fixture；
Step 5, tightening up screw mandrel on fixture so that needing the zero resistance insulator changed not stress simultaneously, transferring a force to fixture
On；
Step 6, replacing zero resistance insulator；
Step 7, loosen fixture, the lower fixture of dismounting.
7. the detachable fixture changing monolithic insulator as claimed in claim 6 is it is characterised in that go up liner in step 3
There is the prestressing force displacement of 5mm with lower liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610960245.8A CN106451233A (en) | 2016-10-28 | 2016-10-28 | Detachable clamping apparatus for replacement of monolithic insulator and method for replacement of monolithic insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610960245.8A CN106451233A (en) | 2016-10-28 | 2016-10-28 | Detachable clamping apparatus for replacement of monolithic insulator and method for replacement of monolithic insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106451233A true CN106451233A (en) | 2017-02-22 |
Family
ID=58179832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610960245.8A Pending CN106451233A (en) | 2016-10-28 | 2016-10-28 | Detachable clamping apparatus for replacement of monolithic insulator and method for replacement of monolithic insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451233A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173165A (en) * | 2018-02-06 | 2018-06-15 | 江苏省送变电有限公司 | Carbon fiber monolithic insulator replacement fixture |
| CN108565777A (en) * | 2018-06-05 | 2018-09-21 | 广西电网有限责任公司柳州供电局 | 35 kilovolts to 500 kilovolts insulator General clampings |
| CN112242664A (en) * | 2020-09-23 | 2021-01-19 | 深圳供电局有限公司 | Insulator replacement tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332237Y (en) * | 2008-12-31 | 2009-10-21 | 江苏省电力公司镇江供电公司 | Insulator replacement fixture |
| JP2014093873A (en) * | 2012-11-05 | 2014-05-19 | Chugoku Electric Power Co Inc:The | Insulator string holder |
| CN204258160U (en) * | 2014-12-23 | 2015-04-08 | 广西电网有限责任公司柳州供电局 | Change transmission tower insulator instrument |
| CN206164002U (en) * | 2016-10-28 | 2017-05-10 | 国网江苏省电力公司南京供电公司 | Change removable fixture of remodeling of monolithic insulator |
-
2016
- 2016-10-28 CN CN201610960245.8A patent/CN106451233A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332237Y (en) * | 2008-12-31 | 2009-10-21 | 江苏省电力公司镇江供电公司 | Insulator replacement fixture |
| JP2014093873A (en) * | 2012-11-05 | 2014-05-19 | Chugoku Electric Power Co Inc:The | Insulator string holder |
| CN204258160U (en) * | 2014-12-23 | 2015-04-08 | 广西电网有限责任公司柳州供电局 | Change transmission tower insulator instrument |
| CN206164002U (en) * | 2016-10-28 | 2017-05-10 | 国网江苏省电力公司南京供电公司 | Change removable fixture of remodeling of monolithic insulator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173165A (en) * | 2018-02-06 | 2018-06-15 | 江苏省送变电有限公司 | Carbon fiber monolithic insulator replacement fixture |
| CN108565777A (en) * | 2018-06-05 | 2018-09-21 | 广西电网有限责任公司柳州供电局 | 35 kilovolts to 500 kilovolts insulator General clampings |
| CN112242664A (en) * | 2020-09-23 | 2021-01-19 | 深圳供电局有限公司 | Insulator replacement tool |
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