CN104029319B - Dry-type transformer molding casting tooling - Google Patents
Dry-type transformer molding casting tooling Download PDFInfo
- Publication number
- CN104029319B CN104029319B CN201410292278.0A CN201410292278A CN104029319B CN 104029319 B CN104029319 B CN 104029319B CN 201410292278 A CN201410292278 A CN 201410292278A CN 104029319 B CN104029319 B CN 104029319B
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- pull rod
- center
- anticreep
- crossbeam
- central hole
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- 238000005266 casting Methods 0.000 title claims abstract description 30
- 238000000465 moulding Methods 0.000 title claims abstract description 12
- 208000012287 Prolapse Diseases 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 6
- 210000002421 cell wall Anatomy 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000009987 spinning Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention provides a kind of dry-type transformer molding casting tooling, including center pull rod, the upper end of center pull rod is equipped with external thread section, being poured tooling further includes bottom board, the center position of bottom board is equipped with the central hole vertically extended for the axial direction that center pull rod passes through, the lower end that center pull rod is pierced by downwards central hole is equipped with anticreep crossbeam, the lower part of bottom board is equipped with for cooperating the anticreep stopping surface to prevent central hole described in center pull rod prolapse upwards with the anticreep crossbeam block of the center pull rod, anticreep stopping surface is equipped with unidirectional rotation stop position limiting structure or two-way rotation stop position limiting structure for being limited in the circumferential direction of the central hole with the limit cooperation of anticreep crossbeam rotation stop with the rotation to center pull rod.Center pull rod and bottom board fastening can be assembled by tensing center pull rod upwards by spinning nut, when needing to be serviced maintenance, nut dismounting be got off, then center pull rod is pierced by by central hole.
Description
Technical field
The present invention relates to a kind of dry-type transformers to form with casting tooling.
Background technique
Currently, wire wound coil in the high-tension coil of poured with epoxy resin type dry-type transformer is usually flat around first
Winding technique is good, refills mould and is poured, and pours the suit for carrying out winding after being poured in again.Common casting tooling such as Authorization Notice No.
For the casting mold disclosed in the Chinese utility model patent of CN201859775U, including including inside and outside mould and being spaced apart,
The top fixed frame and bottom board for the inside and outside mould that is fixedly clamped above and below outer membrane, top fixed frame and bottom board pass through
Center pull rod and around the uniformly distributed side pull rod fixing assembling of center pull rod external circumferential together, center pull rod and side pull rod are along upper
Lower direction extends.After being installed above-mentioned mold tooling, the coiling and casting of coil can be carried out.After casting complete,
Coil is demoulded.
But the method that existing bottom board generallys use heart position welding silk braid in the soleplate, the both ends of center pull rod are all
Tapping, in use, one end of center pull rod is screwed in the silk braid of bottom plate center to realize pull rod and bottom board
Fastening assembly.But the method for this fastening assembly is in assembly mold, in order to make center pull rod tighten need by spanner or
Other tools, and silk braid, since frequent stress is it is easy to appear running, Maintenance and Repair are more troublesome.Also, due to pouring
During note, center pull rod is easily stained with resin, solidifies if resin flows into silk braid along center pull rod, can make center pull rod
It is greatly difficult to be detached, maintenance trouble.Also, since center pull rod is difficult to dismantle, when demoulding, will often say that coil fell, due to
The larger center pull rod that will lead to of bottom board self weight is bent, and then damages center pull rod.
Summary of the invention
The present invention provides a kind of dry-type transformer molding casting tooling, to solve center pull rod existing in the prior art
The technical issues of Maintenance and Repair are more troublesome when being assembled by silk braid and bottom board.
Dry-type transformer provided by the present invention is formed is with the technical solution of casting tooling：Dry-type transformer molding is with pouring
Tooling is infused, including the center pull rod vertically extended, the upper end of center pull rod is equipped with external thread section, and the casting tooling is also
Including bottom board, the center position of the bottom board is equipped with to be vertically extended for the axial direction that center pull rod passes through
Central hole, the lower end that center pull rod is pierced by downwards central hole are equipped with anticreep crossbeam, the lower part of bottom board be equipped with for
The anticreep crossbeam block of the center pull rod cooperates the anticreep stopping surface to prevent central hole described in center pull rod prolapse upwards,
Anticreep stopping surface is equipped with for cooperating with the limit of anticreep crossbeam rotation stop to center pull rod in the circumferential direction of the central hole
The rotation unidirectional rotation stop position limiting structure or two-way rotation stop position limiting structure that are limited.
The central hole is long pore structure, and the length of central hole is not less than the length of the anticreep crossbeam for institute
It states the anticreep crossbeam in center pull rod and is pierced by the central hole from top to bottom.
The middle part of the anticreep crossbeam and the lower end of the center pull rod are connected to form inverted T-type structure, institute
Anticreep stopping surface is stated equipped with the unidirectional rotation stop position limiting structure, unidirectional rotation stop position limiting structure is to be distributed in the central hole
Outer circumferential two convex blocks, two convex blocks in the circumferential direction of the central hole be located at anticreep crossbeam two sides and respectively with institute
State the both ends block limit cooperation of anticreep crossbeam.
The center position of the bottom board is equipped with center mounting hole, removable equipped with blocking at center mounting hole
The center of the plugging plate is arranged in plate, the central hole, and the anticreep stopping surface is arranged under the plugging plate
On end face.
The casting tooling further includes drawing around the uniformly distributed side vertically extended of the center pull rod external circumferential
Bar, on bottom board be equipped with for the axial direction passed through in pull rod vertically extend while perforate, side pull rod is worn downwards
The lower end of side perforation is equipped with block crossbeam out, and the lower part of bottom board has matches for the block crossbeam block with the side pull rod
The lower end surface perforate when preventing described in the pull rod prolapse upwards is closed, lower end surface is equipped with the circumferential direction for perforating on the side
The unidirectional spline structure or two-way spline structure limited with the limit cooperation of block crossbeam rotation stop with the rotation of opposite side pull rod.
The described side perforation is long pore structure, while perforation length not less than the length of the block crossbeam for it is described while
Block crossbeam on pull rod is pierced by the side perforation from top to bottom.
Each side pull rod is corresponded on the lower end surface of the bottom board is respectively equipped with the unidirectional spline structure, it is described to pour
Each side perforation is corresponded on the lower end surface of note bottom plate, and snapping is fixed with the channel steel of notch upward respectively, and the unidirectional spline structure is institute
State the two sides cell wall of channel steel.
The beneficial effects of the invention are as follows：Dry-type transformer molding provided by the present invention is mounted in use, will with pourer
Bottom board is laid flat, since the lower end of center pull rod is equipped with anticreep crossbeam, and on the anticreep stopping surface of bottom board lower part
Equipped with the unidirectional rotation stop position limiting structure that is limited for the rotation to center pull rod or two-way, center pull rod is being penetrated into center
After in perforation, by spinning nut on the external thread section to center pull rod upper end come upwards tense center pull rod and then can will in
Heart pull rod and bottom board fastening are assembled, and the anticreep crossbeam in center pull rod is by the anticreep stopping surface block with bottom board lower part
Cooperate to prevent center pull rod prolapse upwards central hole, meanwhile, in unidirectional rotation stop position limiting structure or two-way rotation stop position limiting structure
Under the action of, the efficiency of dismounting nut can be improved.When needing to be serviced maintenance, spiral shell that center pull rod upper end is provided with
Mother disassembles, then center pull rod is pierced by by central hole, and Maintenance and Repair are quick and convenient.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of dry-type transformer molding embodiment of casting tooling provided by the present invention；
Fig. 2 is that casting tooling shown in Fig. 1 removes the structural schematic diagram after inside and outside mould and top fixed frame；
Fig. 3 is the perspective view of bottom board in Fig. 2；
Fig. 4 is the structural schematic diagram of the centre bore sealing plate on bottom board shown in Fig. 3.
Specific embodiment
As shown in Figures 1 to 4, a kind of dry-type transformer forms the embodiment with casting tooling, the casting in the embodiment
Tooling include the die assembly 400 being made of internal model and external mold and be distributed in die assembly upper and lower for being fixedly clamped
The top fixed frame 500 and bottom board 1 of die assembly, top fixed frame 500 and bottom board 1 are solid by rod assembly 600
Surely it being assembled together, rod assembly 600 herein includes the center pull rod 4 vertically extended and four side pull rods 5, this
The top of center pull rod 4 and side pull rod 5 in embodiment is respectively provided with the external thread section of spinning fastening nut.
In the present embodiment, it is equipped with center mounting hole 11 in the center position of bottom board 1, it is removable at center mounting hole 11
It is equipped with plugging plate 3, is equipped in the center position of plugging plate 3 and vertically extends for the axial direction that center pull rod 4 passes through
Central hole 301, central hole 301 herein are long pore structure, center pull rod 4 be pierced by central hole 301 downwards under
End is equipped with anticreep crossbeam 401, and the middle part of anticreep crossbeam 401 and the lower end of the center pull rod 4 are connected to form inverted T-type
Structure is equipped with for cooperating in prevent with 401 block of anticreep crossbeam of the center pull rod 4 on the lower end surface of plugging plate 3
The anticreep stopping surface 303 of central hole 301 described in 4 prolapse upwards of heart pull rod, anticreep stopping surface 303 are equipped in described
It limits to cooperate with 401 rotation stop of anticreep crossbeam in the circumferential direction of heart perforation 301 and unidirectionally be stopped with what the rotation to center pull rod 4 was limited
Turning position limiting structure, unidirectional rotation stop position limiting structure herein is two convex blocks 302 for being distributed in the outer circumferential of the central hole, two
Convex 302 in the circumferential direction of the central hole 301 be located at 401 two sides of anticreep crossbeam and respectively with the anticreep crossbeam 401
Both ends block limit cooperation, when assembly, center that the center pull rod 4 for being provided with anticreep crossbeam 401 is from top to bottom inserted into is worn
In hole 301, since the length of central hole 301 is greater than the length of the anticreep crossbeam 401 for anti-in the center pull rod
De- crossbeam is pierced by the central hole, center of rotation pull rod from top to bottom, and anticreep crossbeam 401 is staggered with central hole 301, prevents
De- crossbeam 401 cooperates with 303 block of anticreep stopping surface on plugging plate 3, meanwhile, the both ends of anticreep crossbeam respectively with two convex blocks
Block limit cooperation is to be upwardly formed the one-directional rotation limit to anticreep crossbeam 401 and center pull rod 4 week in central hole 301
Position.
In the present embodiment, bottom board 1 be equipped with for the axial direction passed through in pull rod 5 vertically extend while
Perforation 101, each pull rod 5 when perforation 101 is one corresponding, the lower end perforated when pull rod 5 is pierced by downwards is equipped with block crossbeam, pours
The lower part for infusing bottom plate 1 has side described in pull rod prolapse upwards when for cooperating with the block crossbeam block in pull rod to prevent
The lower end surface of perforation, lower end surface are equipped with for cooperating in the circumferential direction that the side is perforated with the limit of block crossbeam rotation stop with opposite side
The unidirectional spline structure that the rotation of pull rod is limited, each side perforation is corresponded on the lower end surface of bottom board 1, and snapping is fixed respectively
There is the channel steel 102 of notch upward, the unidirectional spline structure is the two sides cell wall of the channel steel 102, horizontal when that will be provided with block
Beam is perforated when pull rod 5 is from top to bottom inserted into 101, since the length of side perforation 101 is greater than the length of the block crossbeam
Perforate while described so that the block crossbeam while on pull rod is pierced by from top to bottom, rotation side pull rod, block crossbeam is worn with side
Hole 101 is staggered, and the block anticreep face block on block crossbeam and bottom board cooperates, meanwhile, the both ends difference of block crossbeam
Two sides cell wall block limit cooperation with channel steel 102 is to form the rotary spacing of opposite side pull rod in the circumferential.
Casting tooling provided by the present embodiment can pour tooling with sleeping with upright casting tooling, when as upright casting tooling, will seal
Closure plate 3 is bolted at the center mounting hole 11 of bottom board 1.When die-filling, 1 square of bottom board is drawn center
Bar 4 is from top to bottom inserted into central hole 301, will be perforated in the insertion from top to bottom of pull rod 5 in 101, then corresponding by mould
Tool component 400 is placed on bottom board 1, and top fixed frame 500 is placed on die assembly 400, makes 4 He of center pull rod
Each side pull rod 5 is corresponding with the perforation on the fixed frame of top respectively, then the spinning fastening nut on the external thread section of each pull rod,
When spinning fastening nut, the anticreep crossbeam 401 of 4 lower end of center pull rod can be limited by two boss 302, so as to will it is corresponding tightly
Gu nut tightening, meanwhile, the block crossbeam of 5 lower end of side pull rod can also be limited by the two sides cell wall in channel steel 102, so as to say
Corresponding fastening nut tightens, so as to compress die assembly.
In demoulding, it is only necessary to remove the fastening nut at the top of center pull rod and side pull rod, then center of rotation pull rod
And while pull rod can easily by pull rod from bottom board central hole and while perforate in pull out, demoulding is convenient, will not damage
Evil pull rod.
And tooling is poured in use, plugging plate is removed as sleeping.When die-filling, by bottom board cube, center pull rod is from pouring
It infuses and is pierced by the center mounting hole of vertical plate.
In above-described embodiment, central hole and side perforation are long pore structure, in this way, not influencing bottom board intensity
Under the premise of, it so that anticreep crossbeam and block crossbeam is passed through corresponding perforation by rotating tension bar, be easy to implement tooling
Dismounting.It in other embodiments, can also be by perforated design at borehole structure, at this point it is possible to be inserted from bottom to top into perforation
Corresponding pull rod is filled, the effect of anticreep block equally may be implemented.
In above-described embodiment, be arranged on plugging plate two convex blocks constitute unidirectional rotation stop position limiting structures with to center pull rod into
Row one-directional rotation limit, in this way convenient for make-up nut.In other embodiments, two-way rotation stop limit can also be set on plugging plate
Bit architecture, for example, on the lower end surface of plugging plate setting for rotation stop groove corresponding with anticreep crossbeam, rotation stop groove among the above
Heart perforation is arranged in right-angled intersection, when anticreep crossbeam is turned in rotation stop groove, can be realized by rotation stop groove to anticreep crossbeam and
The Double-directional rotary of center pull rod limits, and when anticreep crossbeam turns to position corresponding with central hole, center can be drawn
Bar takes out from central hole.Likewise, lateral bracing strut and side perforation are it is also possible that setting.
In above-described embodiment, plugging plate is matched with bottom board by the way that bolt is removable, and entirely casting tooling can be made in this way
For upright casting tooling, also can be convenient plugging plate is removed and be changed to it is sleeping pour tooling, versatility is stronger.
In above-described embodiment, the length that the length of central hole is greater than anticreep crossbeam can also make in other embodiments
The length of central hole is equal to the length of anticreep crossbeam, as long as the length of central hole is not less than the length of anticreep crossbeam and guarantees
Anticreep crossbeam normally through central hole.Side perforation is also such with the length relation of the block crossbeam on lateral bracing strut.
In above-described embodiment, anticreep crossbeam and center pull rod form inverted T-type structure, in other embodiments, anticreep
Crossbeam is also possible to end and center pull rod is connected to form L-type structure, as long as at this point, can guarantee the rotation stop to anticreep crossbeam
Limit can equally be applied in casting tooling.
Claims (5)
1. dry-type transformer molding casting tooling, including the center pull rod vertically extended, the upper end of center pull rod is set
There is external thread section, the casting tooling further includes bottom board, it is characterised in that：The center position of the bottom board is equipped with
For the central hole that the axial direction that center pull rod passes through vertically extends, the lower end that center pull rod is pierced by downwards central hole is set
There is anticreep crossbeam, the lower part of bottom board is equipped with for cooperating with the anticreep crossbeam block of the center pull rod to prevent center from drawing
The anticreep stopping surface of central hole described in bar prolapse upwards, anticreep stopping surface are equipped with for the circumferential direction in the central hole
It is limited with anticreep crossbeam rotation stop and cooperates the unidirectional rotation stop position limiting structure limited with the rotation to center pull rod or two-way rotation stop
Position limiting structure, the casting tooling further include drawing around the uniformly distributed side vertically extended of the center pull rod external circumferential
Bar, on bottom board be equipped with for the axial direction passed through in pull rod vertically extend while perforate, side pull rod is worn downwards
The lower end of side perforation is equipped with block crossbeam out, and the lower part of bottom board has matches for the block crossbeam block with the side pull rod
The lower end surface perforate when preventing described in the pull rod prolapse upwards is closed, lower end surface is equipped with the circumferential direction for perforating on the side
With the unidirectional spline structure that is limited with the rotation of opposite side pull rod of block crossbeam rotation stop limit cooperation, under the bottom board
Each side perforation is corresponded on end face, and snapping is fixed with the channel steel of notch upward, the list that the rotation of the opposite side pull rod is limited respectively
It is the two sides cell wall of the channel steel to spline structure.
2. dry-type transformer molding casting tooling according to claim 1, it is characterised in that：The central hole is
Long pore structure, the length of central hole not less than the anticreep crossbeam length for the anticreep crossbeam in the center pull rod by
On be pierced by the central hole downwards.
3. dry-type transformer molding casting tooling according to claim 1, it is characterised in that：The anticreep crossbeam
Middle part and the lower end of the center pull rod are connected to form inverted T-type structure, and the anticreep stopping surface is equipped with described
Unidirectional rotation stop position limiting structure, unidirectional rotation stop position limiting structure is two convex blocks for being distributed in the outer circumferential of the central hole, and two is convex
Block is located at anticreep crossbeam two sides and respectively the both ends block with the anticreep crossbeam in the circumferential direction of the central hole
Limit cooperation.
4. dry-type transformer molding casting tooling according to claim 1 or 2 or 3, it is characterised in that：The casting
The center position of bottom plate is equipped with center mounting hole, and removable at center mounting hole to be furnished with plugging plate, the central hole is set
It sets at the center of the plugging plate, the anticreep stopping surface is arranged on the lower end surface of the plugging plate.
5. dry-type transformer molding casting tooling according to claim 1, it is characterised in that：The side perforation is length
Pore structure, while perforation length not less than the block crossbeam length for it is described while pull rod on block crossbeam from top to bottom
It is pierced by the side perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292278.0A CN104029319B (en) | 2014-06-26 | 2014-06-26 | Dry-type transformer molding casting tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292278.0A CN104029319B (en) | 2014-06-26 | 2014-06-26 | Dry-type transformer molding casting tooling |
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| Publication Number | Publication Date |
|---|---|
| CN104029319A CN104029319A (en) | 2014-09-10 |
| CN104029319B true CN104029319B (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410292278.0A Active CN104029319B (en) | 2014-06-26 | 2014-06-26 | Dry-type transformer molding casting tooling |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115302673B (en) * | 2022-09-01 | 2024-07-26 | 江西恒通电气有限公司 | Pouring tool for dry-type transformer forming |
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| WO2001023167A1 (en) * | 1999-09-27 | 2001-04-05 | Abb Power T & D Company Inc. | Method of manufacturing a transformer coil with a disposable mandrel and mold |
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| CN102862147A (en) * | 2012-09-29 | 2013-01-09 | 上海沪工汽车电器有限公司 | Latch device of workpiece reloading handle |
| CN203500666U (en) * | 2013-08-27 | 2014-03-26 | 中国航空工业集团公司沈阳发动机设计研究所 | Quick opening/closing clamping hoop structure |
| CN203973887U (en) * | 2014-06-26 | 2014-12-03 | 国家电网公司 | Cast frock for a kind of dry-type transformer moulding |
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2014
- 2014-06-26 CN CN201410292278.0A patent/CN104029319B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001023167A1 (en) * | 1999-09-27 | 2001-04-05 | Abb Power T & D Company Inc. | Method of manufacturing a transformer coil with a disposable mandrel and mold |
| CN2639033Y (en) * | 2003-07-04 | 2004-09-08 | 陈沂剩 | Rim wire fixing structure |
| CN2778744Y (en) * | 2004-10-19 | 2006-05-10 | 上海环达计算机科技有限公司 | Box hardware with quickly dismantled and installed structure |
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| Publication number | Publication date |
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| CN104029319A (en) | 2014-09-10 |
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