CN104252964B - A kind of transformator radial pattern core limb manufacture method - Google Patents
A kind of transformator radial pattern core limb manufacture method Download PDFInfo
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- CN104252964B CN104252964B CN201310265767.2A CN201310265767A CN104252964B CN 104252964 B CN104252964 B CN 104252964B CN 201310265767 A CN201310265767 A CN 201310265767A CN 104252964 B CN104252964 B CN 104252964B
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Abstract
A kind of transformator radial pattern core limb manufacture method, including: cut-parts reason material, sequentially lamination, tabletting location, matched moulds Cheng Yuan, contracting circle molding, colligation and leaching fat curing process.The present invention is directed to prior art and can not make the practical problem of big specification radial pattern core limb, utilize one end to be hinged, radially semicircular in shape, and be that level is framed to two placed, sequentially all sheet stocks are folded into two sheet stock circles forming two semicirculars in shape in framed, then after the operations such as matched moulds Cheng Yuan, contracting circle molding, complete the making of an iron core column.The iron core column made has that lamination coefficient and effective magnetic conduction cross section be high, stalloy arrangement and the plurality of advantages such as width is good to the magnetic line of force depth of parallelism, eddy-current loss is little, its magnetic conduction power equipment produced by electromagnetic force influence, does not haves vibration between sheet and sends the phenomenon of electromagnetic noise in alternating magnetic field.
Description
[technical field]
The invention belongs to a kind of conducting magnet core manufacture method, especially belong to a kind of transformator radial pattern core limb
Manufacture method.
[background technology]
In known three kinds of transformer cores, the opposing parallel lamination of Radiation laminated core or evolvent type
For the iron core of lamination, owing to it is during marginalisation effect, magnetic derivation direction and stalloy lamination side
To parallel, thus have that eddy-current loss is low, local does not haves superheating phenomenon and energy-saving effect is significant
Advantage.Before the present invention makes, owing to not having preferable shaped device, the most unable producing supplies transformation
The radial conducting magnet core post product of device, and only for the radial iron core cake appearance of reactor.
Fig. 1 schematically illustrates the cross section structure of a kind of radial conducting magnet core cake, and this iron core cake is by 16
The stalloy sheet stock group of individual unit is constituted, and often in group, stalloy sheet stock is decremented to from wide sheet b equal difference
Arrow gauge c, all sheet stocks are the arrangement of the most radial squash type with centre bore a for the center of circle.During making, people
Work screening, classification, vertically water to sequentially 16 unit sheet stock groups along the circumferential direction being inserted prefabricated one
In casting curing mold, curing molding after casting resin filler, obtain a radial iron-cored cake.The method:
1, being silicon steel coating agent which has to be dissolved in alcohol before use due to sheet stock, its thickness generally only has about 0.3mm, and sheet thin rigidity is poor, when sheet stock is super
When crossing certain altitude, (usually 500mm) just cannot be vertically to lamination, therefore, is only suitable for making certain altitude
Iron core cake, and the column Radiation conducting magnet core post of transformator can not be fabricated for.2, during lamination, due to
Pretension without radially outward force, loose between sheet, only rely on resin extender and fill curing molding, thus be unable to reach
Lamination coefficient required by design, effective magnetic conduction cross section ratio is low.3, due to stalloy and resin extender
The coefficient of expansion is inconsistent, and after temperature raises, resin extender can produce be full of cracks, thus has a strong impact on equipment
Reliability service.4 it can be seen from figure 1 that after molding, one is that wide sheet b is with centre bore a as circle
The heart arranges radially, and other stalloy is relative to all existing a drift angle for centre bore a, i.e. with Fig. 2
In width there is drift angle to magnetic line of force d, thus there is the magnetic line of force through the big defect of stalloy eddy-current loss.
Two is that its periphery circle can not form a positive round, and sheet stock is uneven, loose between sheet, thus utilizes it to make
The equipment become is affected by alternating current fundamental in alternating magnetic field application process, is easily generated vibration and sends electricity between sheet
Magnetic noise.From above-mentioned 1-4 point, we can be concluded that the method unable making transformator radiates sections
Stem stem, and the iron-cored cake utilizing the method to make there is also a lot of defect.
[summary of the invention]
For solving above-mentioned technical problem, it is desirable to provide a kind of transformator radial pattern core limb making side
Method, the method not only can make any specification radial pattern iron core column for transformator, and this post has
Have lamination coefficient and effective magnetic conduction cross section stalloy sheet stock high, all and width to the magnetic line of force depth of parallelism good and whirlpool
The advantage that stream loss is little, product is affected by alternating current fundamental in alternating magnetic field is applied, also will not be produced between sheet
Vibrate and send electromagnetic noise.
For solving above-mentioned technical problem, present invention employs following technical proposals, this transformator radiation sections
The making step of stem manufacture method is as follows:
1, cut-parts reason material: on-demand cutting magnetic conduction stalloy sheet stock, puts some sheet stock groups with group in order for unit；
2, sequentially lamination: the sheet stock group put in order is divided into two parts, folds two into a shaped device respectively
In individual framed semicircle die cavity, form two semicircular sheet stock circles；
3, tabletting location: the end face tabletting at two semicircle sheet stock circles compresses and fixing；
4, matched moulds Cheng Yuan: framed unite two into one two, makes two sheet stock semicircles synthesize a sheet stocks circle,
Shed tabletting；
6, contracting circle molding: tighten with pre-Zha Quan in sheet stock circle periphery, makes sheet stock circle contracting circle molding；
7, colligation is without latitude band: shed framed, is wrapped up without latitude band in sheet stock circle periphery around machine by vertical；
8, leaching fat solidification: leaching fat has solidified the making of a core limb.
Beneficial effect: the present invention is directed to prior art and can not make the practical problem of big specification radial pattern core limb,
Propose a kind of manufacture method.The method utilizes one end to be hinged, radially semicircular in shape, and be level to
Place two framed, sequentially all sheet stocks are folded into two framed in and form the sheet stock of two semicirculars in shape
Circle, then after the operations such as matched moulds Cheng Yuan, contracting circle molding, complete the making of an iron core column.Its advantage is as follows:
1, due to two framed can be with horizontal positioned when lamination, therefore, theoretically, if framed length
Allowing with width, the core limb that can complete any specification makes.2, in manufacturing process, owing to make use of
Sheet stock deadweight, tableting pressure and the pre-effect pricking circle pretightning force so that between the iron core column sheet made, compactness obtains
To increase substantially, it is achieved that the high purpose of lamination coefficient and effective magnetic conduction cross section.3, two framed in
Die cavity semicircular in shape respectively, the iron core column circumference anchor ring after matched moulds must be a positive round, it is achieved thereby that institute
The arrangement of magnetic conduction stalloy is had to parallel to the magnetic line of force with width, the purpose that core limb eddy-current loss is low.It was verified that
The core limb made in this way of profit, its product i.e. magnetic conduction power equipment in alternating magnetic field by electromagnetic force shadow
Ring, do not have vibration between sheet and send the phenomenon of electromagnetic noise.
[accompanying drawing explanation]
Fig. 1 is the radial iron core cake cross-sectional structure schematic diagram of a kind of 16 equal portions in prior art.
Fig. 2 is that the width of radial iron core cake is to magnetic line of force distribution situation schematic diagram.
Fig. 3 is the plan structure schematic diagram of a shaped device used in the present invention.
Fig. 4 be Fig. 3 look up structural representation, depict tubular distance piece and the structure of core pipe in the figure.
Fig. 5 is the structure for amplifying schematic diagram in A portion in Fig. 3.
Fig. 6 is the structure for amplifying schematic diagram in B portion in Fig. 4.
Fig. 7 is the structure for amplifying schematic diagram in C portion in Fig. 4.
Fig. 8 is the left view structure for amplifying schematic diagram of Fig. 4.
Fig. 9 is that the right side of Fig. 4 regards structure for amplifying schematic diagram.
Figure 10 is the state change map of Fig. 9, it may be assumed that the most completed two groups of stalloy laminations, the 3rd group
Stalloy is in lamination.
Figure 11 is the state change map of Fig. 8, it may be assumed that the state after this figure has shown lamination.
Figure 12 is the lamination state change map of Fig. 3.Complete lamination on the left of this figure, and tabletting has been depressed into silicon steel
On sheet 9；Right side has completed the lamination of two groups of stalloys 9.
Figure 13 is the state change map of Fig. 4, has completed lamination on the left of this figure；Right side is nearly completed lamination.
Figure 14 is the width hoisting process figure after Figure 13 completes whole lamination.
Figure 15 is that Figure 14 lifts and terminates, matched moulds view.
Figure 16 is the structural representation after Figure 15 installs first pre-Zha Quan.
Figure 17 is the plan structure schematic diagram after Figure 16 removes suspension hook and lifting rope.
Figure 18 is the plan structure schematic diagram of pre-Zha Quan in Figure 16.
Figure 19 be Figure 18 look up structural representation.
Figure 20 is that Figure 16 completes the most pre-bundle circle colligation, and unloads the knot after removing the outer all producing devices of hinge
Structure schematic diagram.
Figure 21 be utilize vertical around machine colligation without the structural representation of latitude band.
In figure: centre bore a, lengthy motion picture b, short-movie c, width is to magnetic line of force d.Channel-section steel 1, suspension ring 11,
Mold cavity plate 2, semicircular recess wall 21, tabletting 3, tabletting rotating shaft 31, tabletting seat 32, screw rod 31, mould end plate
4, semicircle orifice 41, tubular distance piece 5, core pipe 51, adjusting screw rod 6, leaf of hinge 7, leaf of hinge 71, hinge
Axle 72, mould end plate 8, stalloy 9, lamination state stalloy 91, suspension hook 10, lifting rope 101, pre-Zha Quan
20, degree of tightness axle 201, base 30, work platforms 301, without latitude band 302, runner 303, elevator 304,
Column 305.
[detailed description of the invention]
Generally speaking, the shaped device that the inventive method is used is by a mould bases, and is arranged on described mould
Polylith mold cavity plate on frame, two pieces of mould end plates and many set wafer assemblies are constituted.This mould bases by symmetrical,
Two framed compositions that axially one end is flexibly connected；Along these two framed length directions, compartment,
Vertically to being fixedly installed described polylith mold cavity plate and two pieces of mould end plates respectively.The middle part of these mold cavity plate is all
Having a semicircular recess, all these semicircular recess form the semicircle die cavity receiving stalloy sheet stock；Described
Two pieces of mould end plates split said two framed connect end end face on, form described semicircle die cavity
Baffle plate；The top of described every piece of mold cavity plate both sides is respectively provided with a set of wafer assembly.It should be noted that: regard
Make the difference of object size, framed long width, mold cavity plate, the big smallest number of mould end plate, and pressure
Chip module quantity etc. can change accordingly, and therefore, theoretically, this device can make any
The radial pattern iron core column of specification.
For sharpening understanding, the shaped device related to the inventive method below in conjunction with the accompanying drawings is described further.
See Fig. 3, Fig. 4.Mould bases by symmetrically arranged two framed through the hinge assembly shown in A portion the most hinged and
Integral.Each framed be made up of 1, three adjusting screw rods 6 of two channel-section steels, two channel-section steels 1 width is set
Setting depending on the hows and whys adjusting screw rod 6, to meet the iron core column making of different-diameter, length is on-demand to be determined, finally
Determine the size of semicircle die cavity.The effect one of adjusting screw rod 6 is that two channel-section steels 1 are fixed into entirety, and two are
The spacing of two channel-section steels 1 is adjusted as required, in order to receive corresponding mold cavity plate 2 and mould end plate by nut 61
4 and 8.Along the length direction of channel-section steel 1, at equal intervals, vertically to arranging mold cavity plate 2, the spacing of mold cavity plate 2
Being guaranteed by the tubular distance piece 5 on core pipe 51, tubular distance piece 5 is set on the shaft of core pipe 51.This core
The two ends of pipe 51 respectively with nut strain so that each framed on mould end plate and mold cavity plate be in pretension shape
State.The visual end of love of quantity of core pipe 51 and tubular distance piece 5 thereof.In this example, each framed at equal intervals
Arranging five pieces of mold cavity plate 2 and one piece of mould end plate 4 or 8, mould end plate 4 or 8 is positioned at hinged end, and its effect is just
When lamination, sheet stock is axially aligned.It is respectively provided with a set of Anchor plate kit in the die cavity both sides of every piece of mold cavity plate 2.
Free end at every channel-section steel 1 arranges suspension ring 11, convenient lifting matched moulds.
Fig. 5 and Fig. 6 shows two framed articulated structures.Two set hinge assemblies are arranged on two pieces of mould end plates
Between 4 and 8.Often set hinge assembly is made up of leaf of hinge 7 and 71, hinge axis 72, leaf of hinge 7 and 71
It is separately fixed on mould end plate 4 and 8.Two pieces of mould end plates 4 and 8 are separately positioned on two framed hinged ends
On end face, core pipe 5 draw fixing.
Fig. 7 shows the structure of wafer assembly.Often set wafer assembly is by tabletting 3, tabletting rotating shaft 31, tabletting
Seat 32 and screw rod 31 are constituted.Tabletting seat 32 is fixed on the side, top of mold cavity plate 2, and turn screw rod 31 can
Make tabletting 3 oscilaltion, and tabletting 3 can be around the horizontal rotation of screw rod 31.
See Fig. 8.Polylith mold cavity plate 2 is positioned by core pipe 51, and adjusting screw rod 6 is for two channel-section steels 1 of regulation
Width is set.The middle part of every piece of mold cavity plate 2 has semicircular recess, and described semicircular recess forms one axially
Semicircle die cavity, semicircular recess wall 21 semicircular in shape.The bottom of semicircle die cavity is the inwall of mould end plate 4,
Semicircle orifice 41 (can not also set) can be set in the middle part of it.The rational height of tabletting 3 should match with mould end plate 4 and (scheme
In be in and mould end plate 4 parallel position, it is true that the position, outer of mould end plate 4 should be in before lamination).
See Fig. 9.The difference of Fig. 9 Yu Fig. 8 is that wafer assembly is blocked (in the present embodiment by mold cavity plate 2
Wafer assembly is installed in the left side of mold cavity plate 2), therefore, invisible tabletting in the Fig. 9 observed from right to left
Assembly.
For being further appreciated by the present invention, below in conjunction with the accompanying drawings, by a piece iron core column of an Examples detail
Manufacturing process.
This example iron core column sets requirement: external diameter 600mm, internal diameter 60mm, length 2200mm, sheet width level
Difference 10mm, magnetic conduction stalloy thickness 0.35mm, lamination coefficient 0.97,60 unit of stalloy group number.
Its making step is as follows:
1, cut-parts reason material.With group as unit, arrange the stalloy of 60 unit.
Require to understand according to setting: all stalloy length are 2200mm.Silicon steel at different levels in each unit
Width and the sheet number of sheet are as follows:
(1) A-class picture (i.e. wide sheet b) shown in Fig. 1:
Width: 270mm (computational methods: external diameter 600 ÷ 2-internal diameter ÷ 2=270)；
Sheet number: 9 (computational methods: internal diameter 60 × pi 3.14=centre bore girth 188.4mm.
The thick 0.35 ≈ total tablet number 538 of centre bore girth 188.4 ÷ silicon steel blade.
Total tablet number 538 × lamination coefficient 0.97 ≈ is actually needed total tablet number 521.
It is actually needed total tablet number 521 ÷ unit number 60=each dice number 8.7 ≈ 9.
Illustrate: owing to each dice counts existing decimal, therefore, each unit will have more
0.3,60 unit will have more 18 stalloys altogether, visual during actual fabrication
Feelings select 18 unit to place 9 stalloys, and remaining is 8.
By above-mentioned thinking, calculate successively two grades of sheets to 27 grades of sheets (i.e. arrow gauge c) shown in Fig. 1,
And process accordingly.
(2) two grades of sheets: width 260mm, sheet number 3.……
(27) two ten seven grades: width 10mm, sheet number 3.
2, sequentially lamination: the stalloy of 60 unit is divided into two parts, fold respectively into two framed in.
By level, stalloy put into semicircle die cavity by unit, and is alignd with mould end plate in the side of stalloy.
As follows by the structure of shaped device and process setting requirements making: to take four channel-section steels 1, every two
Channel-section steel by three adjusting screw rods 6 through securing member form one framed.Each framed at equal intervals, vertically
To setting 5 pieces of mold cavity plate 2 and 1 piece of mould end plate 4, mold cavity plate is fixed on channel-section steel by securing member, every piece of mould
In the middle part of the plate body of cavity plate, through hole is offered in both sides, and core pipe 51 is more than 2200mm through these through holes, core length of tube
?.The both sides of every piece of mold cavity plate set a set of wafer assembly.Between mold cavity plate, mold cavity plate and mould end
It is nested with a tubular distance piece 5, it is ensured that mold cavity plate and mould end plate are in vertical shape on core pipe pipe shaft between plate
State.The outer end of every core pipe is by nut fastening location.The radius of the semicircular recess in the middle part of mold cavity plate is 300mm,
Semicircle orifice 41 radius of mould end plate is 30mm.Two framed hinged by two set hinge assemblies.
4, tabletting location: after semicircle die cavity lamination completes, with tabletting 3 positioning compression.
5, matched moulds Cheng Yuan: use loop wheel machine framed to unite two into one two.
6, contracting circle molding: tighten with pre-Zha Quan in sheet stock circle periphery, makes sheet stock circle molding；
7, prick without latitude band: shed forming die, wrapped up without latitude band in molding sheet stock circle periphery around machine by vertical；
8, leaching fat solidification: leaching fat has solidified the making of iron core column.
Claims (1)
1. a transformator radial pattern core limb manufacture method, is characterized in that: comprise the following steps that:
(1), cut-parts reason material: on-demand cutting magnetic conduction stalloy sheet stock, if putting dry tablet with group in order for unit
Material group；
(2), sequentially lamination: the sheet stock group put in order is divided into two parts, folds respectively into a shaped device
Two framed semicircle die cavitys in, form two semicircular sheet stocks circle；Two framed through hinge assembly
The most hinged and integral, each framed it is made up of two channel-section steels, three adjusting screw rods, each framed
Vertical to arranging polylith mold cavity plate and one piece of mould end plate at equal intervals along the length direction of channel-section steel, mould end plate is positioned at
Hinged end, is respectively provided with a set of Anchor plate kit in the die cavity both sides of every piece of mold cavity plate；Two set hinge assemblies set
Put between two pieces of mould end plates；Polylith mold cavity plate is positioned by core pipe, and adjusting screw rod is for two channel-section steels of regulation
Width is set；The middle part of every piece of mold cavity plate has semicircular recess, and described semicircular recess forms one axially
Semicircle die cavity, semicircular recess wall semicircular in shape；The spacing of mold cavity plate is come really by the tubular distance piece on core pipe
Protecting, tubular distance piece is set on the shaft of core pipe, and the two ends of this core pipe are strained with nut respectively, so that
Each framed on mould end plate and mold cavity plate be in Pre strained state；Often set wafer assembly is turned by tabletting, tabletting
Axle, tabletting seat and screw rod are constituted, and tabletting seat is fixed on the side, top of mold cavity plate, and turn screw rod can make pressure
Sheet oscilaltion, and tabletting can turn around screw stem water yaw；
(3), tabletting location: the end face tabletting at two semicircle sheet stock circles compresses and fixing；
(4), matched moulds Cheng Yuan: two framed are united two into one, makes two sheet stock semicircles one sheet stocks of synthesis
Circle, sheds tabletting；
(5), contracting circle molding: tighten with pre-Zha Quan in sheet stock circle periphery, make sheet stock circle contracting circle molding；
(6), colligation is without latitude band: sheds framed, is wrapped up without latitude band in sheet stock circle periphery around machine by vertical；
(7), leaching fat solidification: leaching fat has solidified the making of a core limb.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310265767.2A CN104252964B (en) | 2013-06-28 | 2013-06-28 | A kind of transformator radial pattern core limb manufacture method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310265767.2A CN104252964B (en) | 2013-06-28 | 2013-06-28 | A kind of transformator radial pattern core limb manufacture method |
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| CN104252964A CN104252964A (en) | 2014-12-31 |
| CN104252964B true CN104252964B (en) | 2016-09-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109243803A (en) * | 2018-11-22 | 2019-01-18 | 广东安沛电力有限公司 | A kind of machining manufacture of dual openings rewinding material |
| CN114284056B (en) * | 2021-12-28 | 2024-03-01 | 无锡希恩电气有限公司 | Arrangement method of annular sheet-shaped stacked iron cores |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101090022A (en) * | 2007-04-29 | 2007-12-19 | 沈阳工业大学 | Strong magnetic field permanent magnetic mechanism for preventing abnormal magnetization |
| CN101256885A (en) * | 2007-12-29 | 2008-09-03 | 北京中机联供非晶科技发展有限公司 | Amorphous iron core forming method |
| CN102742131A (en) * | 2008-05-23 | 2012-10-17 | 松下电器产业株式会社 | Manufacturing method of rare earth-iron ring magnet with continuous orientation controlled anisotropy |
-
2013
- 2013-06-28 CN CN201310265767.2A patent/CN104252964B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101090022A (en) * | 2007-04-29 | 2007-12-19 | 沈阳工业大学 | Strong magnetic field permanent magnetic mechanism for preventing abnormal magnetization |
| CN101256885A (en) * | 2007-12-29 | 2008-09-03 | 北京中机联供非晶科技发展有限公司 | Amorphous iron core forming method |
| CN102742131A (en) * | 2008-05-23 | 2012-10-17 | 松下电器产业株式会社 | Manufacturing method of rare earth-iron ring magnet with continuous orientation controlled anisotropy |
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