CN106425282A - Device and method for dismounting rusted nut on sleeve of power-distribution electric transducer - Google Patents
Device and method for dismounting rusted nut on sleeve of power-distribution electric transducer Download PDFInfo
- Publication number
- CN106425282A CN106425282A CN201610372330.2A CN201610372330A CN106425282A CN 106425282 A CN106425282 A CN 106425282A CN 201610372330 A CN201610372330 A CN 201610372330A CN 106425282 A CN106425282 A CN 106425282A
- Authority
- CN
- China
- Prior art keywords
- nut
- shaped ferrite
- alternating current
- sleeve pipe
- dismounting
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims description 12
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 33
- 230000006698 induction Effects 0.000 claims abstract description 14
- 230000009466 transformation Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 230000005674 electromagnetic induction Effects 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 15
- 230000006378 damage Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241001311547 Patina Species 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Induction Heating (AREA)
Abstract
The invention provides a device for dismounting a rusted nut on a sleeve of a power-distribution electric transducer. The device comprises a medium-frequency alternating-current generating device and U-shaped ferrite, wherein the medium-frequency alternating-current generating device is connected with the U-shaped ferrite through a current output cable; an induction coil is wound on the U-shaped ferrite; a strip-shaped ferrite is arranged at one side of the U-shaped ferrite; the strip-shaped ferrite is arranged in alternating-current magnetic fields for cutting alternating-current magnetic lines of force generated by the induction coil. According to the device provided by the invention, certain gap is formed between the rusted nut and a bolt by utilizing electromagnetic induction heating and the principle of heat expansion and cold contraction, so that the nut can be easily dismounted through a common wrench.
Description
Technical field
The invention mainly relates to a kind of pass through principle of expanding with heat and contracting with cold, electrical equipment sleeve pipe is become using electromagnetic induction heating dismounting distribution
The device and method of rust nut cap, it is adaptable to the dead nut of controller switching equipment rust, is particularly suited for rust on distribution change electrical equipment sleeve pipe dead
The nut that cannot dismantle afterwards.
Background technology
Bushing shell for transformer is the primary insulation device outside transformer tank, and the lead-out wire of Transformer Winding has to pass through insulation sleeve
Pipe, makes to insulate between lead-out wire and between lead-out wire and transformer case, plays the effect of fixing lead-out wire simultaneously.Because of electric pressure
Difference, insulating sleeve has the forms such as pure porcelain casing tube, oil filled bushing and capacitance graded bushing.Pure porcelain casing tube is used for 10kV and following transformation
Device, it is to wear a conductive copper bar in porcelain bushing shell, is air insulation in insulator, by terminal plate, porcelain piece, conducting rod with raise aluminium and close
Golden flange composition.
During switchgear house interruption maintenance, find that transformer high-low-voltage sleeve pipe clamp nut often has the dead phenomenon of rust, lead to
Cross analysis contrast, find that the dead main cause of nut rust is electrochemical corrosion.The common way of dismounting rust nut cap is using length
Torque spanner, beat nuts and bolt, acid corrosion, alcohol washes etc..But above method is problematic in that：
1st, adopt the method for long torque spanner it is easy to automatic twist deformation by bolt, reduce sleeve pipe mechanical strength, heavy then lead
Sleeve pipe is caused to crush.
2nd, using the method beaing nuts and bolt, be easily caused nut corner angle damage, the thread damage on bolt, beat
Overweight can lead to sleeve pipe that crackle or broken occurs, cause potential safety hazard or heavy economic losses.
3rd, the method adopting acid corrosion, can only wash patina or iron rust（Under normal circumstances, nut is copper material, but
Steel may be changed unintentionally into by workmen in all previous maintenance process）, the time of consuming is long, generally requires 27 points
Clock, the big lid of dead transformer and unrestrained acid can be become rusty.
4th, adopt alcohol or rust remover WD40 cleaning method, greasy dirt can only be cleaned, patina is not acted on, to dismounting nut
Effect smaller, and abnormally dangerous using incendive alcohol around transformer.
In sum, the become rusty method of dead bushing shell for transformer nut of common dismounting can damage nut, bolt, heavy then destroy whole
Sleeve pipe, causes economic loss, and more serious consequence is if the sleeve pipe that can not find same model in time is changed, and can be delayed plan and stop
The electric power feeding time that electric-examination is repaiied, causes customer complaint, and impact " stops power transmission administrative evaluation, 95598 service indication, economic indicator, client
Evaluate " these four indexs, therefore need the scheme finding a kind of more convenient, safer dismounting rust nut cap badly.
Content of the invention
For solving the deficiency of current technology, the present invention combines prior art, from practical application, provides a kind of dismounting to join
Electricity becomes the device and method of electrical equipment sleeve pipe rust nut cap, and the present invention makes rust dead by electromagnetic induction heating and principle of expanding with heat and contracting with cold
Easily nut can be pulled down by common wrench after producing certain gap between nut and bolt.
For achieving the above object, technical scheme is as follows：
A kind of dismounting distribution becomes the device of electrical equipment sleeve pipe rust nut cap, including intermediate frequency alternating current generating means, U-shaped ferrite,
Described intermediate frequency alternating current generating means connects U-shaped ferrite by current output line cable, and described U-shaped ferrite is wound around thoughts
Answer coil, U-shaped ferritic side is provided with bar shaped ferrite, bar shaped ferrite is placed in alternating magnetic field and is used for cutting induction coil
The alternate magnetic force line producing.
Described intermediate frequency alternating current generating means is that 220V power supply is sequentially passed through rectification coil, inversion coil and resonance line
Circle produces the intermediate frequency alternating current of frequency-adjustable.
Described intermediate frequency alternating current generating means includes housing, described housing front be provided with power switch, fm dial,
Frequency modulation indicator lamp, current output terminal mouth, output control interface, described current output line cable one end is provided with can be with current output terminal mouth
The input control interface that the current input terminal mouth plugging together is plugged together with output control interface.
Described back side of shell is provided with power interface, fuse and fan.
Described U-shaped ferrite is fixed on handle, and described handle is provided with bat-handle switch, and described bat-handle switch is used for controlling
The break-make of electric current in current output line cable.
220V power source transition is alternating current by intermediate frequency alternating current generating means, and alternating current passes through on U-shaped ferrite
Induction coil produce alternating magnetic field, bar shaped ferrite is placed in alternating magnetic field cutting alternate magnetic force line, so that nut interior
Produce vortex, vortex makes the atom high speed random motion of nut interior, atom mutually collides, the generation heat energy that rubs makes nut fast
Speed heats up and expands, and the gap between nut and bolt becomes dismantles nut using common wrench greatly afterwards.
Beneficial effects of the present invention：
The present invention passes through alternating current generating means and by induction coil, the alternating current producing is produced alternating magnetic field, makes nut
It is brought rapidly up after internal generation turbine, because the bolt temperature together with nut rust is also relatively low, lead to nut and bolt
Between gap become big, gap become big after using common wrench, nut can be pulled down；Present configuration is simple, achievable nut
Easy removal, does not damage nut and other electrical equipment simultaneously, common heating device also can be avoided to become electrical equipment bobbin seal glue to distribution
The injury that circle, transformer oil cause.
Brief description
Accompanying drawing 1 is general structure schematic diagram of the present invention；
Accompanying drawing 2 is intermediate frequency alternating current generating means structure schematic diagram；
Accompanying drawing 3 is use state structural representation of the present invention.
Label shown in accompanying drawing：1st, intermediate frequency alternating current generating means；2nd, power switch；3rd, current output terminal mouth；4th, adjust
Frequency indicator lamp；5th, fm dial；6th, output control interface；7th, current output line cable；8th, bat-handle switch；9th, handle；10th, the line of induction
Circle；11st, U-shaped ferrite；12nd, fuse；13rd, power interface；14th, fan；15th, nut；16th, bar shaped ferrite.
Specific embodiment
In conjunction with the drawings and specific embodiments, the invention will be further described.
It should be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.
In addition, it is to be understood that after having read the content of present invention instruction, those skilled in the art can make to the present invention
Various changes or modification, these equivalent form of values equally fall within the application appended claims limited range.
As shown in accompanying drawing 1 ~ 3, a kind of dismounting distribution becomes the device of electrical equipment sleeve pipe rust nut cap, sends out including intermediate frequency alternating current
Generating apparatus 1, U-shaped ferrite 11, described intermediate frequency alternating current generating means 1 connects U-shaped ferrite by current output line cable 7
11, described U-shaped ferrite 11 is wound with induction coil 10, the side of U-shaped ferrite 11 is provided with bar shaped ferrite 16, bar shaped iron
Oxysome 16 is placed in alternating magnetic field and is used for cutting the alternate magnetic force line of induction coil 10 generation.
The intermediate frequency alternating current generating means 1 of the present invention can produce alternating current, and its principle is that just 220V power supply is successively
Produce the intermediate frequency alternating current of frequency-adjustable through rectification coil, inversion coil and resonance coil, alternating current exports through electric current
Cable 7 connects the induction coil 10 to U-shaped ferrite 11, produces alternating magnetic field by induction coil 10, and bar shaped ferrite 16 is put
It is used for cutting magnetic line in this alternating magnetic field, during use, U-shaped ferrite 11 and bar shaped ferrite 16 are respectively placed in nut 15
Two ends, the inside of nut 15 can produce the electric current of alternation, that is, be vortexed, and vortex can make the courtyard high speed of interior of articles random
Motion, atom collides with each other, rubs and produce heat energy, become rusty with nut 15 together with bolt temperature also relatively low, lead to spiral shell
Gap between female 15 and bolt becomes big, now just can easily nut 15 be disassembled using common wrench.The present invention's
Concrete structure includes housing, and described housing front is provided with power switch 2, fm dial 5, frequency modulation indicator lamp 4, current output terminal
Mouth 3, output control interface 6, described current output line cable 7 one end is provided with the current input terminal that can plug together with current output terminal mouth 3
The input control interface that mouth is plugged together with output control interface 6；Back side of shell is provided with power interface 13, fuse 12 and fan 14；
U-shaped ferrite 11 is fixed on 9 on handle, and described handle 9 is provided with bat-handle switch 8, and it is defeated that described bat-handle switch 8 is used for control electric current
Go out the break-make of electric current in cable 7.During use, 220V power supply is connected by power interface 13, current input terminal mouth is inserted electric current
Output port 3, input control interface insertion output control interface 6, adjust fm dial 5 to correct position, right when needing
When nut 15 is heated, opening bat-handle switch 8 makes alternating current be applied on induction coil 10.
At present, conventional maximum capacity distribution transformer（2000KVA）Bushing nut model is M48, and the present invention only needs
Want 21.8s just nut can be heated to 215 DEG C（As long as easy removal nut just can be realized more than 200 DEG C）, easy removal
Nut, has wide applicability.The present invention can also avoid common heating device simultaneously（Containing Electromagnetic Heating, blowtorch heating, electricity
Resistance heating）Sleeve of distribution transformer O-ring seal, transformer oil are damaged.
Claims (6)
1. a kind of dismounting distribution become electrical equipment sleeve pipe become rusty nut cap device it is characterised in that：Fill including intermediate frequency alternating current
Put（1）, U-shaped ferrite（11）, described intermediate frequency alternating current generating means（1）By current output line cable（7）Connect U-shaped iron oxygen
Body（11）, described U-shaped ferrite（11）On be wound with induction coil（10）, U-shaped ferrite（11）Side be provided with bar shaped iron oxygen
Body（16）, bar shaped ferrite（16）It is placed in alternating magnetic field and be used for cutting induction coil（10）The alternate magnetic force line producing.
2. as claimed in claim 1 a kind of dismounting distribution become electrical equipment sleeve pipe become rusty nut cap device it is characterised in that：In described
Frequency alternating current generating means（1）220V power supply can be sequentially passed through rectification coil, inversion coil and resonance coil and produce frequency
Adjustable intermediate frequency alternating current.
3. as claimed in claim 2 a kind of dismounting distribution become electrical equipment sleeve pipe become rusty nut cap device it is characterised in that：In described
Frequency alternating current generating means（1）Including housing, described housing front is provided with power switch（2）, fm dial（5）, frequency modulation
Indicator lamp（4）, current output terminal mouth（3）, output control interface（6）, described current output line cable（7）One end is provided with can be with electric current
Output port（3）The current input terminal mouth plugging together and output control interface（6）The input control interface plugging together.
4. as claimed in claim 3 a kind of dismounting distribution become electrical equipment sleeve pipe become rusty nut cap device it is characterised in that：Described shell
The body back side is provided with power interface（13）, fuse（12）And fan（14）.
5. as claimed in claim 1 a kind of dismounting distribution become electrical equipment sleeve pipe become rusty nut cap device it is characterised in that：Described U
Type ferrite（11）It is fixed on handle（9）, described handle（9）It is provided with bat-handle switch（8）, described bat-handle switch（8）For
Control electric current output cord（7）The break-make of interior electric current.
6. a kind of dismounting distribution become electrical equipment sleeve pipe become rusty nut cap method, using said apparatus operation it is characterised in that：Intermediate frequency is handed over
Power transformation flow generating apparatus（1）220V power source transition is alternating current, alternating current passes through U-shaped ferrite（11）On the line of induction
Circle（10）Produce alternating magnetic field, bar shaped ferrite（16）It is placed in cutting alternate magnetic force line in alternating magnetic field, so that nut（15）
Internal generation is vortexed, and vortex makes nut（15）Internal atom high speed random motion, atom mutually collides, rub generation heat energy
Make nut（15）Be rapidly heated expansion, nut（15）Gap and bolt between becomes dismantles nut using common wrench greatly afterwards
（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372330.2A CN106425282B (en) | 2016-05-31 | 2016-05-31 | A kind of device and method of disassembly distribution power transformation device casing rust nut cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372330.2A CN106425282B (en) | 2016-05-31 | 2016-05-31 | A kind of device and method of disassembly distribution power transformation device casing rust nut cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106425282A true CN106425282A (en) | 2017-02-22 |
| CN106425282B CN106425282B (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610372330.2A Expired - Fee Related CN106425282B (en) | 2016-05-31 | 2016-05-31 | A kind of device and method of disassembly distribution power transformation device casing rust nut cap |
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| Country | Link |
|---|---|
| CN (1) | CN106425282B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356482A (en) * | 2017-12-30 | 2018-08-03 | 珠海市业成轨道交通设备科技有限公司 | A kind of method for dismounting of high speed motor car oil-pressure damper guide cover |
| CN108808559A (en) * | 2018-08-03 | 2018-11-13 | 国家电网公司 | A kind of electric transmission line isolator gets rusty closed pin special removing tool |
| CN109366094A (en) * | 2018-11-25 | 2019-02-22 | 大同煤矿集团有限责任公司 | Get rusty bolt looseness device |
| CN111482926A (en) * | 2020-04-22 | 2020-08-04 | 江苏力沛电力工程技术服务有限公司 | Method for rusting and disassembling screw of wind turbine generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU580970A1 (en) * | 1975-07-16 | 1977-11-25 | Магнитогорский Горно-Металлургический Институт Имени Г.И.Носова | Method of manufacturing rolls with rims |
| JPH0950883A (en) * | 1995-08-09 | 1997-02-18 | Hitachi Building Syst Co Ltd | Induction heater and induction heating method |
| DE10011529A1 (en) * | 2000-03-10 | 2001-09-13 | Buehler Druckguss Ag Uzwil | Inductive flow sensor used for detecting light metals in the (partially) molten state during die casting has an oscillator coil whose wires are insulated using a ceramic |
| CN101607607A (en) * | 2009-07-14 | 2009-12-23 | 朱长宝 | Sealing opening of aluminum-plastic paper composite packaging material adhesive bonding method and device thereof |
| CN203197521U (en) * | 2013-03-29 | 2013-09-18 | 江苏新创雄铝制品有限公司 | Rim heating device in hub compounding procedure |
| CN203504785U (en) * | 2013-09-09 | 2014-03-26 | 大连纳思达汽车设备有限公司 | Electromagnetic heater for automobile |
-
2016
- 2016-05-31 CN CN201610372330.2A patent/CN106425282B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU580970A1 (en) * | 1975-07-16 | 1977-11-25 | Магнитогорский Горно-Металлургический Институт Имени Г.И.Носова | Method of manufacturing rolls with rims |
| JPH0950883A (en) * | 1995-08-09 | 1997-02-18 | Hitachi Building Syst Co Ltd | Induction heater and induction heating method |
| DE10011529A1 (en) * | 2000-03-10 | 2001-09-13 | Buehler Druckguss Ag Uzwil | Inductive flow sensor used for detecting light metals in the (partially) molten state during die casting has an oscillator coil whose wires are insulated using a ceramic |
| CN101607607A (en) * | 2009-07-14 | 2009-12-23 | 朱长宝 | Sealing opening of aluminum-plastic paper composite packaging material adhesive bonding method and device thereof |
| CN203197521U (en) * | 2013-03-29 | 2013-09-18 | 江苏新创雄铝制品有限公司 | Rim heating device in hub compounding procedure |
| CN203504785U (en) * | 2013-09-09 | 2014-03-26 | 大连纳思达汽车设备有限公司 | Electromagnetic heater for automobile |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356482A (en) * | 2017-12-30 | 2018-08-03 | 珠海市业成轨道交通设备科技有限公司 | A kind of method for dismounting of high speed motor car oil-pressure damper guide cover |
| CN108808559A (en) * | 2018-08-03 | 2018-11-13 | 国家电网公司 | A kind of electric transmission line isolator gets rusty closed pin special removing tool |
| CN109366094A (en) * | 2018-11-25 | 2019-02-22 | 大同煤矿集团有限责任公司 | Get rusty bolt looseness device |
| CN111482926A (en) * | 2020-04-22 | 2020-08-04 | 江苏力沛电力工程技术服务有限公司 | Method for rusting and disassembling screw of wind turbine generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106425282B (en) | 2019-03-12 |
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