CN106298198A - A kind of dry-type transformer and cushion block compressing structure thereof - Google Patents
A kind of dry-type transformer and cushion block compressing structure thereof Download PDFInfo
- Publication number
- CN106298198A CN106298198A CN201610897253.2A CN201610897253A CN106298198A CN 106298198 A CN106298198 A CN 106298198A CN 201610897253 A CN201610897253 A CN 201610897253A CN 106298198 A CN106298198 A CN 106298198A
- Authority
- CN
- China
- Prior art keywords
- disc spring
- cushion block
- hold
- pressure winding
- down bolt
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Springs (AREA)
Abstract
The invention provides a kind of dry-type transformer and cushion block compressing structure thereof, cushion block compressing structure includes hold-down bolt and the cushion block arranged along the vertical direction, the groove that the bolt head for hold-down bolt embeds is offered on cushion block, disc spring group it is arranged with on hold-down bolt, the disc spring of bottom and described cushion block top press-fit in disc spring group, on hold-down bolt, the top in disc spring group is installed with clamp nut, in disc spring group, the disc spring of the top and described clamp nut top press-fit, described hold-down bolt is arranged with fairlead in the endoporus of disc spring group.The beneficial effects of the present invention is: the existence of fairlead can reduce the gap between the endoporus of hold-down bolt and disc spring group, so when transformator produces bigger vibrations in transport and running, laterally collecting together of disc spring sheet in disc spring group just can be obviously reduced, thus avoid the transversion malposition of disc spring sheet, ensure that the using effect of disc spring, the normal safe of the final compression effect ensureing cushion block compressing structure and transformator use.
Description
Technical field
The present invention relates to a kind of dry-type transformer and cushion block compressing structure thereof.
Background technology
Dry-type transformer cushion block compressing structure is used to support and compress the key structure of transformator high and low pressure winding,
Generally using the mode of the cooperations such as nail pressing, disc spring and cushion block, Authorization Notice No. is CN201788796U, and authorized announcement date is
2011.04.06 Chinese utility model patent discloses a kind of three-phase five-column dry transformer, including upper and lower folder, upper,
It is provided with on the outer of lower clamping piece on the upper and lower termination of elastic pressing nail, high pressure winding and low pressure winding and is respectively arranged with resin cushion block, bullet
Property nail pressing resin cushion block and high and low pressure winding are fixed, the junction of elastic pressing nail and resin cushion block is provided with disc spring, dish
Spring can absorb vibrations during transformator work, thus prevents loosening of elastic pressing nail and resin cushion block.
Above-mentioned elastic pressing nail is exactly substantially a kind of hold-down bolt, and resin cushion block offers the bolt head for hold-down bolt
The groove embedded, wherein disc spring is set in the bar portion of hold-down bolt, and the disc spring of bottom is press-fitted with the upper surface top of resin cushion block
Close, the disc spring of the top and spinning clamp nut top press-fit on hold-down bolt, make disc spring by the effect of clamp nut
It is pressed on the surface of resin cushion block.
Although this cushion block compressing structure can compress high and low pressure winding, increase the anti-seismic performance of iron core, but owing to becoming
Depressor vibrations in transport and running are bigger, and due to by transformer specification, cushion block specification and compression spiral shell
The restriction of pig gauge lattice, the bar portion diameter of hold-down bolt is the diameter of bore much smaller than disc spring, therefore along with vibrations generation with
And the floating of disc spring, may misplace due to excessive lateral displacement between different disc spring sheets.It is known that disc spring exists
A kind of mode the most frequently used during application is exactly opposite two-by-two, once misplaces between disc spring sheet, and its using effect will be big
The most impaired, the compression effect of cushion block also can be had a greatly reduced quality therewith, and high pressure winding and low pressure winding cannot be compressed by cushion block, high voltage winding
Group and low pressure winding will occur horizontal and vertical collecting together, serious if may initiating failure, impact is normal to be used.
It addition, this cushion block compressing structure of the prior art, the thrust of its disc spring is to be controlled by clamp nut
, clamp nut pressure multiple pressure is few, and completely by the experience of operator, the demand of different its thrusts of transformator is to differ
Sample, the compression standard that equal neither one is clear and definite, press I haven't seen you for ages causes thrust inadequate, cause collecting together of high pressure winding and low pressure winding
Dynamic, pressure the most likely can damage the parts of transformator, even results in disc spring deformation and excessively lost efficacy, to the assembling of transformator
Very big inconvenience is brought with use.
Summary of the invention
It is an object of the invention to provide a kind of cushion block compressing structure, easily produced solving disc spring of the prior art
Degree lateral displacement and cause dislocation problem；The present invention also aims to provide a kind of and use the dry of this cushion block compressing structure
Formula transformator.
In order to solve above-mentioned technical problem, in the present invention, the technical scheme of cushion block compressing structure is:
A kind of cushion block compressing structure, including the hold-down bolt arranged along the vertical direction and cushion block, cushion block offers for compressing spiral shell
The groove that the bolt head of bolt embeds, hold-down bolt is arranged with disc spring group, the disc spring of bottom and described cushion block top in disc spring group
Press-fit, on hold-down bolt, the top in disc spring group is installed with clamp nut, the disc spring of the top and described compression in disc spring group
The press-fit of nut top, described hold-down bolt is arranged with fairlead in the endoporus of disc spring group.
The wall thickness of described fairlead is equal to the gap between hold-down bolt and the endoporus of disc spring.
The height of described fairlead meets the bottom of the fairlead when disc spring group reaches to set deformation extent and described bolt
Crown press-fit, top and the press-fit of clamp nut top of fairlead.
Cushion block compressing structure also include being arranged on below cushion block for the elasticity contacted with high pressure winding and low pressure winding
Felt pad, the upper surface of elastic insulated pad is provided with bar shaped projection, and the bottom of cushion block offers join concavo-convex with described bar shaped projection
The strip groove closed.
Described strip groove runs through the bottom of cushion block, and the length of bar shaped projection is less than the length of strip groove, elastic insulated
On pad, the underface in strip groove offers the mouth of stepping down for getting out of the way the insulation bracer between high pressure winding and low pressure winding.
Described bar shaped projection and strip groove are arranged on the center line on surface, place, described bar shaped projection and mouth of stepping down
Bearing of trend is consistent with the length direction of elastic insulated pad.
In the present invention, the technical scheme of dry-type transformer is:
A kind of dry-type transformer, the low pressure winding including iron core and being successively set on iron core periphery and high pressure winding are high on iron core
The part going out low pressure winding and high pressure winding is installed with upper clamping piece, and upper clamping piece is installed with fixing nut, described low pressure winding and
High pressure winding be provided above cushion block compressing structure, cushion block compressing structure includes hold-down bolt and the pad arranged along the vertical direction
Block, cushion block offers the groove that the bolt head for hold-down bolt embeds, and the other end of thread segment of hold-down bolt is solid with described
Determine nut thread to connect, hold-down bolt is arranged with disc spring group, the disc spring of bottom and described cushion block top press-fit in disc spring group,
On hold-down bolt, the top in disc spring group is installed with clamp nut, and in disc spring group, the disc spring of the top is pressed with described clamp nut top
Coordinate, described hold-down bolt is arranged with fairlead in the endoporus of disc spring group.
The wall thickness of described fairlead is equal to the gap between hold-down bolt and the endoporus of disc spring.
The height of described fairlead meets the bottom of the fairlead when disc spring group reaches to set deformation extent and described bolt
Crown press-fit, top and the press-fit of clamp nut top of fairlead.
Cushion block compressing structure also includes the elasticity contacted with described high pressure winding and low pressure winding being arranged on below cushion block
Felt pad, the upper surface of elastic insulated pad is provided with bar shaped projection, and the bottom of cushion block offers join concavo-convex with described bar shaped projection
The strip groove closed, described strip groove runs through the bottom of cushion block, and the length of bar shaped projection is less than the length of strip groove, elastic
On felt pad, underface in strip groove offers for getting out of the way allowing of insulation bracer between high pressure winding and low pressure winding
Position mouth.
Described bar shaped projection and strip groove are arranged on the center line on surface, place, described bar shaped projection and mouth of stepping down
Bearing of trend is consistent with the length direction of elastic insulated pad.
The beneficial effects of the present invention is: on hold-down bolt in the endoporus of disc spring group sheathed fairlead, fairlead
Existence can reduce the gap between the endoporus of hold-down bolt and disc spring group, so produces in transport and running when transformator
When giving birth to bigger vibrations, laterally collecting together of the disc spring sheet in disc spring group just can be obviously reduced, thus avoid the horizontal of disc spring sheet
Dislocation, it is ensured that the using effect of disc spring, the normal safe of the final compression effect ensureing cushion block compressing structure and transformator makes
With.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of an embodiment of dry-type transformer in the present invention；
Fig. 2 is the structural representation of Fig. 1 Elastic nail pressing；
Fig. 3 is the detonation configuration schematic diagram of elastic pressing nail；
Fig. 4 is the structural representation of cushion block in Fig. 1；
Fig. 5 is the structural representation of SOI rubber cushion in Fig. 1.
In figure: 1. elastic pressing nail；2. cushion block；3. SOI rubber cushion；4. high pressure winding；5. low pressure winding；6. fix nut；
7. upper clamping piece；8. iron core；11. hold-down bolts；12. clamp nuts；13. disc springs；14. fairleads；21. grooves；22. bar shapeds are recessed
Groove；31. bar shaped projections；32. step down mouth.
Detailed description of the invention
Implement such as shown in Fig. 1 ~ Fig. 5 for one of dry-type transformer, including iron core 8 be successively set on iron core 8 periphery
Low pressure winding 5 and high pressure winding 4, the part that iron core 8 exceeds low pressure winding 5 and high pressure winding 4 is installed with upper clamping piece 7, upper folder
Being installed with fixing nut 6 on the side of part 7, concrete described fixing nut 6 is hex nut, in the hex surface of hex nut
One of them side is welded and fixed with described upper clamping piece 7.
Described low pressure winding 5 and high pressure winding 4 be provided above cushion block compressing structure, described cushion block compressing structure includes
Elastic pressing nail 1, cushion block 2 and the SOI rubber cushion 3 set gradually along the vertical direction, wherein elastic pressing nail 1 include hold-down bolt 11,
The fairlead 14 that is set on hold-down bolt 11, it is set in the disc spring group 13 outside fairlead 14 and spinning at hold-down bolt 11
On clamp nut 12.The wall thickness of fairlead 14 is just equal to the gap between hold-down bolt 11 and the endoporus of disc spring group 13, also
That is, after disc spring group 13 is set on hold-down bolt, the disc spring sheet in disc spring group 13 will not occur horizontal collecting together, it is ensured that
The using effect of disc spring.
The thread segment of described hold-down bolt 11 one end is threadeded with described fixing nut 6, and the end face of described cushion block 2 is opened
Being provided with the groove 21 of circle, the other end of bolt head of hold-down bolt 11 embeds in described groove 21.Bottom in disc spring group 13
The end face top press-fit of disc spring and cushion block 2, after clamp nut 12 moves down compression disc spring group 13, the top in disc spring group 13
The bottom surface top press-fit of disc spring and clamp nut 12.
Described disc spring group 13 1 has 13 disc springs, and 13 disc springs are compressed to the deformation extent of setting at compacted nut 12
Time, the bottom of fairlead 14 just with described bolt crown press-fit, the top of fairlead 14 just with clamp nut 12 top pressure
Coordinate.It is to say, the effect of fairlead 14 is except meeting the guiding to disc spring group 13 and preventing disc spring sheet from laterally collecting together it
Outward, also act as an effect compressing standard, during assembling, as long as clamp nut 12 rotates to and the end contact of fairlead 14,
Disc spring group 13 cannot be compressed again, thus gives a clear and definite assembling standard.Calculated by designed in advance, it is possible to root
According to needing the disc spring pressing power obtained to calculate the deformation that disc spring group needs to produce, further according to the quantity of disc spring sheet in disc spring group,
Just can configure a certain fairlead determining height, make disc spring group when reaching the deformation extent set, clamp nut just supports
Contact fairlead.
Different transformators and different cushion block compressing structures, the specification of its disc spring group and fairlead is different,
But being finally provided to obtain most suitable thrust, the control of thrust eliminates the reliance on the experience of operator, each pad
Block compressing structure all has clear and definite compression standard, and thrust is neither too much nor too little, solve thrust very few time high pressure winding and low pressure
The problem that when problem that winding is easily collected together and thrust are excessive, the parts of transformator crush easily and disc spring lost efficacy.
The bottom surface of SOI rubber cushion 3 contacts with low pressure winding 5 and high pressure winding 4, and the upper surface of SOI rubber cushion 3 is provided with
Bar shaped projection 31, the bottom surface of cushion block 2 offers and the strip groove 22 of bar shaped projection 31 male-female engagement, and strip groove 22 runs through
The bottom surface of cushion block 2, the length of bar shaped projection 31 is less than the length of strip groove 22.Bar shaped projection 31 and the extension of strip groove 22
Direction is consistent with the length bearing of trend of SOI rubber cushion 3 and cushion block 2 respectively, be directed to high pressure winding 4 or low pressure winding 5 around
Center processed.
Described bar shaped projection 31 and strip groove 22 lay respectively at the center line of the width of SOI rubber cushion 3 and cushion block 2
On, wherein bar shaped projection 31 is positioned at one end of SOI rubber cushion 3, and on SOI rubber cushion 3, the other end in bar shaped projection 31 is opened
Be provided with bar shaped projection 31 with wide and after bar shaped projection 31 with strip groove 22 male-female engagement with the residue of strip groove 22
The mouth 32 of stepping down of groove part centering, say, that mouth 32 of stepping down is positioned at the underface of strip groove 22.
Being provided with insulation bracer (not shown) between high pressure winding 4 and low pressure winding 5, described insulation bracer is through allowing
Position mouth 32 and the residue groove part of strip groove 22.
Cushion block 2 is compressing by DMC material, and width and the degree of depth of strip groove 22 are 10mm, when the specification of transformator
Time different, only need to change length a of cushion block 2, width b, highly c and the size of circular groove 21 diameter d.SOI
Rubber cushion 3 has elasticity, when the height of high pressure winding 4 and low pressure winding 5 is inconsistent, by the elastic deformation of SOI rubber cushion 3
Can regulate and make it highly consistent, so that the clamping plane of the disc spring group 13 i.e. upper surface of cushion block 2 is in level, it is ensured that
Good compression effect.It addition, by the elastic deformation of SOI rubber cushion 3, it is also possible to the vertical tremor of transformator is played one
Fixed cushioning effect.
During use, first SOI rubber cushion 3 is placed on high pressure winding 4 and the top of low pressure winding 5, then by cushion block 2
It is placed on the top of SOI rubber cushion 3, makes SOI rubber cushion 3 and cushion block 2 male-female engagement, and make insulation bracer be just passed through stepping down
Mouth 32 and the residue groove part of strip groove 22.Then by the thread segment of elastic pressing nail one end and fixing nut 6 threaded engagement,
Slowly backspin hold-down bolt 11, until the bolt head of hold-down bolt 11 embeds in circular groove 21, then turn downwards compresses
Nut 12, makes clamp nut 12 compress disc spring group 13, and the disc spring sheet in disc spring group 13 is directed downwardly toward under the effect of fairlead 14
Mobile, when on fairlead 14 conflicted by clamp nut 12, disc spring group 13 reaches the deformation extent set, now in disc spring group 13
The disc spring top of bottom be pressed on the upper surface of cushion block 2, to 2 one constant pressure of cushion block.
Using elastic pressing nail, good springiness, intensity is high, to high pressure winding 4 and 5 one constant pressure of low pressure winding, makes change
There is not the displacement of up and down and back and forth direction in transport and running mesohigh winding 4 and low pressure winding 5 in depressor, it is ensured that becomes
The iron core 8 of depressor is tightened to an entirety with high pressure winding 4 and low pressure winding 5.
When the high and low pressure of transformator changes around packet size and capacity, need to use different elastic pressing nails and pad
Block and the cooperation of SOI rubber cushion ensure to compress effect, and in applying due to reality, the size of cushion block and SOI rubber cushion is root
According to the size design of high and low pressure winding, and the specification of elastic pressing nail and size be the size according to cushion block carries out selecting,
Therefore the hold-down bolt selected it is difficult to ensure that just the endoporus with disc spring match, certainly exist between the two certain between
Gap, and the existence of fairlead is just filled with this gap so that cushion block compressing structure in use, will not send out by disc spring group
Life is laterally collected together, it is ensured that compress effect.
In other embodiments of dry-type transformer: the material of cushion block can also be resin；Elastic insulated pad can also be
Quality of rubber materials；Can also be not provided with mouth of stepping down on elastic insulated pad, the bar shaped projection on the most elastic insulated pad can be with bar shaped
The length of groove is consistent, other positions that now insulation bracer can be arranged between high and low pressure winding；Bar shaped projection and bar shaped
The bearing of trend of groove can also be not directed to the coiling center of high pressure winding or low pressure winding, but has certain deflection；Work as dish
When spring group reaches to set deformation extent, the height of fairlead also can be slightly below the height of disc spring group；The wall thickness of fairlead may not be used yet
Equal to the gap between hold-down bolt and the endoporus of disc spring, and it is slightly less than this gap.
The enforcement of cushion block compressing structure is such as shown in Fig. 1 ~ Fig. 5, and the concrete structure of cushion block compressing structure becomes with above-mentioned dry type
Cushion block compressing structure described in depressor embodiment is identical, is not described in detail in this.
Claims (10)
1. a cushion block compressing structure, including the hold-down bolt arranged along the vertical direction and cushion block, cushion block offers for compressing
The groove that the bolt head of bolt embeds, hold-down bolt is arranged with disc spring group, the disc spring of bottom and described cushion block in disc spring group
Top press-fit, on hold-down bolt, the top in disc spring group is installed with clamp nut, the disc spring of the top and described pressure in disc spring group
The press-fit of jack panel top, it is characterised in that: in the endoporus of disc spring group, it is arranged with fairlead on described hold-down bolt.
Cushion block compressing structure the most according to claim 1, it is characterised in that: the wall thickness of described fairlead is equal to hold-down bolt
And the gap between the endoporus of disc spring.
Cushion block compressing structure the most according to claim 1 and 2, it is characterised in that: the height of described fairlead meets works as dish
The bottom of fairlead and described bolt crown press-fit, the top of fairlead and clamp nut when spring group reaches to set deformation extent
Top press-fit.
Cushion block compressing structure the most according to claim 3, it is characterised in that: cushion block compressing structure also includes being arranged on cushion block
The elastic insulated pad being used for contacting with high pressure winding and low pressure winding of lower section, it is convex that the upper surface of elastic insulated pad is provided with bar shaped
Block, the bottom of cushion block offers and the strip groove of described bar shaped projection male-female engagement.
Cushion block compressing structure the most according to claim 4, it is characterised in that: described strip groove runs through the bottom of cushion block,
The length of bar shaped projection is less than the length of strip groove, and on elastic insulated pad, the underface in strip groove offers for getting out of the way
The mouth of stepping down of the insulation bracer between high pressure winding and low pressure winding.
Cushion block compressing structure the most according to claim 5, it is characterised in that: described bar shaped projection and strip groove are respectively provided with
On the center line on surface, place, described bar shaped projection is consistent with the length direction of elastic insulated pad with the bearing of trend of mouth of stepping down.
7. a dry-type transformer, the low pressure winding including iron core and being successively set on iron core periphery and high pressure winding, on iron core
The part exceeding low pressure winding and high pressure winding is installed with upper clamping piece, and upper clamping piece is installed with fixing nut, described low pressure winding
With high pressure winding be provided above cushion block compressing structure, cushion block compressing structure include the hold-down bolt that arranges along the vertical direction and
Cushion block, cushion block offers the groove that the bolt head for hold-down bolt embeds, and the other end of thread segment of hold-down bolt is with described
Fixing nut thread connects, and hold-down bolt is arranged with disc spring group, and in disc spring group, the disc spring of bottom is press-fitted with described cushion block top
Closing, on hold-down bolt, the top in disc spring group is installed with clamp nut, the disc spring of the top and described clamp nut in disc spring group
Top press-fit, it is characterised in that: in the endoporus of disc spring group, it is arranged with fairlead on described hold-down bolt.
Dry-type transformer the most according to claim 7, it is characterised in that: the wall thickness of described fairlead equal to hold-down bolt with
Gap between the endoporus of disc spring.
9. according to the dry-type transformer described in claim 7 or 8, it is characterised in that: the height of described fairlead meets works as disc spring
The bottom of fairlead and described bolt crown press-fit, top and the clamp nut top of fairlead when group reaches to set deformation extent
Press-fit.
Dry-type transformer the most according to claim 9, it is characterised in that: cushion block compressing structure also includes being arranged on cushion block
The elastic insulated pad contacted with described high pressure winding and low pressure winding of lower section, it is convex that the upper surface of elastic insulated pad is provided with bar shaped
Block, the bottom of cushion block offers and the strip groove of described bar shaped projection male-female engagement, and described strip groove runs through the end of cushion block
Portion, the length of bar shaped projection less than the length of strip groove, on elastic insulated pad underface in strip groove offer for
Get out of the way between high pressure winding and low pressure winding insulation bracer mouth of stepping down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610897253.2A CN106298198B (en) | 2016-10-14 | 2016-10-14 | A kind of dry-type transformer and its cushion block compressing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610897253.2A CN106298198B (en) | 2016-10-14 | 2016-10-14 | A kind of dry-type transformer and its cushion block compressing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106298198A true CN106298198A (en) | 2017-01-04 |
| CN106298198B CN106298198B (en) | 2018-09-28 |
Family
ID=57717858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610897253.2A Active CN106298198B (en) | 2016-10-14 | 2016-10-14 | A kind of dry-type transformer and its cushion block compressing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106298198B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063853A (en) * | 2017-06-16 | 2017-08-18 | 哈尔滨工业大学 | A kind of fixture for v-notch beam sample testing shear performance |
| CN108231354A (en) * | 2017-12-29 | 2018-06-29 | 江苏瑞恩电气股份有限公司 | A kind of dry-type three-phase transformer |
| CN108231353A (en) * | 2017-12-29 | 2018-06-29 | 江苏瑞恩电气股份有限公司 | A kind of heat dissipation noise abatement dry-type transformer |
| CN108231351A (en) * | 2017-12-29 | 2018-06-29 | 江苏瑞恩电气股份有限公司 | A kind of efficient silencing and damping type dry-type transformer |
| CN108231352A (en) * | 2017-12-29 | 2018-06-29 | 江苏瑞恩电气股份有限公司 | A kind of high-wearing feature noise reduction type dry-type transformer |
| CN108597810A (en) * | 2018-05-31 | 2018-09-28 | 河南森源电气股份有限公司 | Transformer coil cushion block anti-loose structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004207330A (en) * | 2002-12-24 | 2004-07-22 | Hitachi Ltd | Wiring tightening structure of static induction electric instrument |
| CN202084379U (en) * | 2011-05-13 | 2011-12-21 | 上海沪光变压器有限公司 | Elastic pressing nail of transformer |
| CN202585006U (en) * | 2012-04-20 | 2012-12-05 | 福州天宇电气股份有限公司 | Dry type disc spring and pressing stud structure |
| CN203325669U (en) * | 2013-07-02 | 2013-12-04 | 山东省金曼克电气集团股份有限公司 | Elastic compressing device for coil of dry-type transformer |
| CN203706822U (en) * | 2014-03-11 | 2014-07-09 | 浙江马克变压器有限公司 | Coil pressing unit for dry-type transformer |
| CN203706821U (en) * | 2014-03-11 | 2014-07-09 | 浙江马克变压器有限公司 | Coil pressingstructure for dry-type transformer |
| CN104358731A (en) * | 2014-08-22 | 2015-02-18 | 中国航空工业集团公司北京航空精密机械研究所 | Hydraulic cylinder for locking hydraulic clamp |
| CN206250032U (en) * | 2016-10-14 | 2017-06-13 | 国家电网公司 | Dry-type transformer and its cushion block compressing structure |
-
2016
- 2016-10-14 CN CN201610897253.2A patent/CN106298198B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004207330A (en) * | 2002-12-24 | 2004-07-22 | Hitachi Ltd | Wiring tightening structure of static induction electric instrument |
| CN202084379U (en) * | 2011-05-13 | 2011-12-21 | 上海沪光变压器有限公司 | Elastic pressing nail of transformer |
| CN202585006U (en) * | 2012-04-20 | 2012-12-05 | 福州天宇电气股份有限公司 | Dry type disc spring and pressing stud structure |
| CN203325669U (en) * | 2013-07-02 | 2013-12-04 | 山东省金曼克电气集团股份有限公司 | Elastic compressing device for coil of dry-type transformer |
| CN203706822U (en) * | 2014-03-11 | 2014-07-09 | 浙江马克变压器有限公司 | Coil pressing unit for dry-type transformer |
| CN203706821U (en) * | 2014-03-11 | 2014-07-09 | 浙江马克变压器有限公司 | Coil pressingstructure for dry-type transformer |
| CN104358731A (en) * | 2014-08-22 | 2015-02-18 | 中国航空工业集团公司北京航空精密机械研究所 | Hydraulic cylinder for locking hydraulic clamp |
| CN206250032U (en) * | 2016-10-14 | 2017-06-13 | 国家电网公司 | Dry-type transformer and its cushion block compressing structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063853A (en) * | 2017-06-16 | 2017-08-18 | 哈尔滨工业大学 | A kind of fixture for v-notch beam sample testing shear performance |
| CN107063853B (en) * | 2017-06-16 | 2023-08-11 | 哈尔滨工业大学 | Clamp for testing shear performance of V-shaped notch beam sample |
| CN108231354A (en) * | 2017-12-29 | 2018-06-29 | 江苏瑞恩电气股份有限公司 | A kind of dry-type three-phase transformer |
| CN108231353A (en) * | 2017-12-29 | 2018-06-29 | 江苏瑞恩电气股份有限公司 | A kind of heat dissipation noise abatement dry-type transformer |
| CN108231351A (en) * | 2017-12-29 | 2018-06-29 | 江苏瑞恩电气股份有限公司 | A kind of efficient silencing and damping type dry-type transformer |
| CN108231352A (en) * | 2017-12-29 | 2018-06-29 | 江苏瑞恩电气股份有限公司 | A kind of high-wearing feature noise reduction type dry-type transformer |
| CN108597810A (en) * | 2018-05-31 | 2018-09-28 | 河南森源电气股份有限公司 | Transformer coil cushion block anti-loose structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106298198B (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106298198A (en) | A kind of dry-type transformer and cushion block compressing structure thereof | |
| CN107565402A (en) | A kind of regulator cubicle protects base | |
| CN105274909B (en) | Steel rail vibration reduction fastener | |
| CN202367295U (en) | Centering hobbing fixture | |
| CN206250032U (en) | Dry-type transformer and its cushion block compressing structure | |
| CN204480866U (en) | A kind of pressing device of transformer coil | |
| CN206364279U (en) | A kind of cable anti-pull wire pressing block | |
| CN102837396A (en) | Solenoid valve coil rubber coating die | |
| CN205530696U (en) | Building engineering connecting piece of combatting earthquake | |
| CN211850107U (en) | Height-adjustable friction damper | |
| CN209016656U (en) | A kind of core-bunched strain clamp | |
| CN207074565U (en) | A kind of cable for charging electric automobiles | |
| CN203558795U (en) | Compaction winding wire rope used height adjustable wire pressing device | |
| CN204651148U (en) | A kind of holding down transformer body combined pad | |
| CN206040318U (en) | Around chartered plane around baotou device | |
| CN204247288U (en) | A kind of disintegrating machine granularity adjustment and fastener | |
| CN106502307B (en) | A kind of vehicle-mounted encoder knob | |
| CN106285145A (en) | A kind of three-dimensional shock isolation support that can regulate vertical rigidity in early days | |
| CN203701613U (en) | Limiting device capable of automatically adjusting expansion and contraction quantity of clamping piece | |
| CN206422245U (en) | A kind of torque parallel groove clamp | |
| CN207098275U (en) | The adjustable indenter device of thread depressing mechanism in electric cabinet | |
| CN203973182U (en) | In water pump assembly, the centering of motor is shored instrument | |
| CN205900302U (en) | Transformer winding compression device | |
| CN202871528U (en) | Cushion block for epoxy resin pouring dry type transformer | |
| CN205414990U (en) | Clamping device of triangle -shaped apron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |