CN104124048B - A kind of manufacture method of radial iron core cake - Google Patents
A kind of manufacture method of radial iron core cake Download PDFInfo
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- CN104124048B CN104124048B CN201310149377.9A CN201310149377A CN104124048B CN 104124048 B CN104124048 B CN 104124048B CN 201310149377 A CN201310149377 A CN 201310149377A CN 104124048 B CN104124048 B CN 104124048B
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Abstract
A kind of manufacture method of radial iron core cake.Comprise cut-parts reason material, centrifugal screening and shaping three steps of contracting circle, first magnetic conduction silicon steel sheet wide for different sheet is arranged in the card of carrier radially, High Rotation Speed carrier makes all sheet stocks get rid of under centrifugal action to card outer, form the neatly sheet stock of a loose arrangement circle, remove outer ring, subregion dividing plate, and after the center of inserting determines pipe and earth connection, tighten up wire line thimble and be inserted in prefabricated insulation retainer plate, shed wire line thimble and pipe is determined at center, the radial iron core cake of a positive round.The method makes all sheet stocks under the uniform tightening force effect of equipressure, synchronously determines pipe polymerization towards center, closely and within the circumference range being mutually squeezed in setting, thus lamination coefficient and effective cross-section filling rate is greatly improved.Through practice test, the reactor product utilizing this iron core cake to make by electromagnetic force influence, there will not be vibration between sheet and sends electromagnetic noise in alternating magnetic field.
Description
[technical field]
The invention belongs to a kind of manufacture method of radial iron core cake.
[technical background]
At present, reactor with the structure of radial iron core cake as shown in Figure 1, the figure shows a kind of cross-sectional structure of the iron core cake be made up of 16 groups of different sheets wide magnetic conduction silicon steel sheet sheet stock groups, often group is decremented to most short-movie c successively from most lengthy motion picture b, and all sheet stocks arrange to squash type in height.Before the present invention makes, during making, by artificial, sheet stock group is inserted in prefabricated casting solidification mould, then casting resin filler curing molding.There are the following problems to adopt the radial iron core cake made in this way: the efficiency that 1, wastes time and energy is low, and each iron core cake needs outfit one casting solidification mould, and cost of manufacture is high.2, owing to relying on artificial insertion, radial without External Force Acting, for this reason, comparatively loose between sheet, resin extender can only be relied on to fill curing molding, and the lamination coefficient required by design cannot be reached, thus reduce effective magnetic conduction cross section.3, be in operation with the reactor that this iron core cake is made, because the coefficient of expansion of silicon steel sheet and resin extender is inconsistent, after iron core cake temperature raises, because resin extender can produce be full of cracks, thus have a strong impact on the operational reliability of equipment.4, as seen from Figure 1, one is only have most lengthy motion picture b to be for the center of circle arranges radially with centre bore a, and other silicon steel sheet relative centre hole a exists a drift angle, namely there is drift angle with the width in Fig. 2 to the magnetic line of force, thus there is the magnetic line of force produces eddy current loss defect through silicon steel sheet.Two is that on the circle of periphery, the outer face of every sheet sheet stock does not form a positive round, in uneven shape, makes cannot compress between sheet, equipment is affected by alternating current fundamental in alternating magnetic field, easily produces vibration and send electromagnetic noise between sheet.
[summary of the invention]
For solving the problems of the technologies described above, the present invention aims to provide a kind of manufacture method of radial iron core cake, the method is adopted to make radial iron core cake, not only high, the labour intensity of time saving and energy saving efficiency and production cost low, and effectively can improve the depth of parallelism of width to the magnetic line of force and silicon steel sheet, thus effectively reduce the influence degree of eddy current loss and alternating current fundamental, being in operation with the equipment that this iron core cake is made there will not be vibration between sheet and eliminates electromagnetic noise.
For achieving the above object, present invention employs following technical scheme:
The step of this radial method for manufacturing iron core cake is as follows:
1, cut-parts reason material: cut the magnetic conduction silicon steel sheet sheet stock that different sheet is wide; By most lengthy motion picture to the magnetic conduction silicon steel sheet sheet stock arranged in sequence of most short-movie, be organized into a sheet stock group; Then, being provided with in the carrier of subregion dividing plate by height to being placed on one by group, forming one radially and after the sheet stock of loose arrangement circle, justify on outline periphery at sheet stock and be nested with an outer ring;
2, centrifugal screening: by described carrier together with sheet stock circle and outer ring fixed placement on a rotary-tray, rotate this rotary-tray and carry out centrifugal screening;
3, contracting circle is shaping: remove outer ring, subregion dividing plate after centrifugal screening completes, and inserts the center that a diameter and radial iron core cake center-hole diameter match in the center of sheet stock circle and determine pipe, between sheet stock, insert earth connection; Then, wire line thimble on sheet stock circle outline periphery cover, is inserted in prefabricated insulation retainer plate successively, sheds wire line thimble and pipe is determined at center by mechanical force after tightening up wire line thimble, the radial iron core cake of a positive round.
During concrete enforcement, described insulation retainer plate is pressed into by press.
During concrete enforcement, the two ends of described wire line thimble control push rod by hydraulic press and complete degree of tightness.
Beneficial effect: compared with prior art, comprise cut-parts reason material, centrifugal screening and shaping three steps of contracting circle, first being arranged in radially by magnetic conduction silicon steel sheet wide for different sheet is provided with in the carrier card of subregion dividing plate, High Rotation Speed carrier makes all sheet stocks get rid of under centrifugal action to card outer, form the neatly sheet stock of a loose arrangement circle, remove outer ring, subregion dividing plate, and after the center of inserting determines pipe and earth connection, tighten up wire line thimble and be inserted in prefabricated insulation retainer plate, shed wire line thimble and pipe is determined at center, the radial iron core cake of a positive round.The method makes all sheet stocks under the uniform tightening force effect of equipressure, pipe polymerization is synchronously determined towards center, closely and within the circumference range being mutually squeezed in setting, and between sheet, gap is little, tightness is high, thus lamination coefficient and effective magnetic conduction cross section filling rate are greatly improved.Make that time saving and energy saving production efficiency is high, labour intensity is low, and the iron core cake of often kind of specification only needs one pair of carrier and outer ring, subregion dividing plate etc., can significantly reduce Mold Making expense.Through practice test, the reactor product utilizing this iron core cake to make by electromagnetic force influence, there will not be vibration between sheet and sends electromagnetic noise in alternating magnetic field.
For deepening to understand the present invention, be described in further detail by embodiment below in conjunction with accompanying drawing.
[accompanying drawing explanation]
Fig. 1 is the cross-sectional structure schematic diagram of a kind of 16 equal portions iron core cakes in prior art.
Fig. 2 is iron core cake magnetic line of force distribution situation schematic diagram.
Fig. 3 is manufacture method step key diagram of the present invention.
A kind of shaped device that Fig. 4 adopts for manufacture method of the present invention.
In figure: centre bore a, most lengthy motion picture b, most short-movie c, rotary-tray 1, tenon 11, screw 12, carrier 2, bulge loop 21, mortise 22, location hole 23, groove 24, subregion dividing plate 3, projection 31, recess 32, outer ring 4, rides groove 41, top cover 5, screw rod 51, handle 52, wire line thimble 6, work top 7, pipe 8 is determined at center.
[embodiment]
See Fig. 3, and composition graphs 1.This manufacture method has three steps:
1, cut-parts reason material: cut the magnetic conduction silicon steel sheet sheet stock that different sheet is wide; By most lengthy motion picture b to the magnetic conduction silicon steel sheet sheet stock arranged in sequence of most short-movie c, be organized into a sheet stock group; Then, by group by height to be placed on be provided with subregion dividing plate 3 carrier 2 in, forms one radially and after the sheet stock of loose arrangement circle, justify on outline periphery at sheet stock and be nested with outer ring 4;
2, centrifugal screening: by carrier 2 together with sheet stock circle and outer ring 4 fixed placement on rotary-tray 1, rotate this rotary-tray 1 and carry out centrifugal screening;
3, contracting circle is shaping: remove outer ring 4, subregion dividing plate 3 after centrifugal screening completes, and inserts the center that a diameter and radial iron core cake centre bore a diameter match in the center of sheet stock circle and determine pipe 8, between sheet stock, insert earth connection; Then, wire line thimble 6 on sheet stock circle outline periphery cover, is inserted in prefabricated insulation retainer plate successively, sheds wire line thimble 6 and pipe 8 is determined at center by mechanical force after tightening up wire line thimble 6, the radial iron core cake of a positive round.
See Fig. 4, the shaping producing device of this one being manufacture method of the present invention adopts, by frame, and the rotary-tray 1 be arranged in this frame and molding assembly are formed, molding assembly determines pipe 8, four subregion dividing plates 3 and wire line thimble 6 and tightening device thereof by carrier 2, outer ring 4, center, and top cover 5 forms.Rotary-tray 1 is positioned on work top 7, is fixed on one by motor-driven vertically to the axle head of rotating shaft.In the middle part of rotary-tray 1, the outline of tenon 11 and mortise 22 inner wall shape of carrier 2 match.Bulge loop 21 is established at the edge of carrier 2, and bulge loop 21 establishes four grooves 24 at equal intervals, for receiving subregion dividing plate 3.Subregion dividing plate 3 is inserted in location hole 23 through projection 31, stands on carrier 2 for the center of circle is radial with mortise 22.The inner diameter of outer ring 4 is consistent with bulge loop 21 inner diameter of carrier 2, and establishes four to ride groove 41 at equal intervals, and it can be made during assembling to ride on four subregion dividing plates 3.Top cover 5 is revolved by screw rod 51 on the screw 12 putting and be fixed on rotary-tray 1 tenon 11, plays safeguard protection effect.It should be noted that, the large I of the carrier 2 of this shaped device, bulge loop 21 and top cover 5 takes the circumstances into consideration to select, that is: select carrier 2 grade according to made radial iron core cake size.
In addition, in the diagram, every block subregion dividing plate 3 outer end all has recess 32, utilizes this recess 32 can arrange an anchor ear, throws away to prevent subregion dividing plate 3 under centrifugal action.In like manner, set up top cover 5, make it to be located on screw 12 through screw rod 51, forming entirety through tenon 11 and rotary-tray 1, is also in order to ensure safety.
Below in conjunction with Fig. 3, and composition graphs 4.To make a diameter for 480mm, center-hole diameter is 40mm, and the high radial iron core cake for 85mm is that example is described in further detail manufacturing process of the present invention.
1, cut-parts reason material: the magnetic conduction silicon steel sheet sheet stock (sheet stock thickness is 0.3mm) that the different sheet of punching is wide.With sheet wide 220mm, 210mm, 200mm ..., 10mm arranged in sequence forms a sheet stock group, arranges out 120 groups altogether, stand-by.
The selection of shaped device.This carrier 2 should meet following condition: the inwall of bulge loop 21 is 240mm to the distance between centre bore a outline.Then, by group by 120 groups of magnetic conduction silicon steel sheet height to be uprightly placed on be provided with four pieces of subregion dividing plates 3 carrier 2 in, each subregion places 30 groups, formed one radially loose arrangement and irregular sheet stock circle.This carrier 2 is moved on rotary-tray 1.Outer ring 4 on the outline periphery cover of described sheet stock circle, and screw on top cover 5.
2, centrifugal screening: starter motor makes rotary-tray 1 rotate, carry out centrifugal screening, now, the wide magnetic conduction silicon steel sheet of all different sheets is thrown away by circumference under centrifugal action, be close on the inwall of bulge loop 21 and outer ring 4, form the sheet stock circle that a radial loose arrangement is neat, and be a positive round.
3, contracting circle is shaping: remove outer ring 4 and subregion dividing plate 3 after centrifugal screening completes, and pipe 8 is determined at the center that an insertion diameter and radial iron core cake centre bore a diameter match on the center of sheet stock circle, between sheet stock, insert earth connection; Then, sheet stock circle outline periphery overlaps wire line thimble 6, after tightening up wire line thimble 6, is inserted in prefabricated insulation retainer plate (without dimension glass wire ring), shed wire line thimble 6 and center determine pipe 8 the radial iron core cake of a positive round.
During concrete enforcement, described insulation retainer plate is depressed into the axially middle part of sheet stock circle outline periphery by press.
During concrete enforcement, the two ends of described wire line thimble 6 have been controlled the degree of tightness of wire line thimble 6 by hydraulic press push rod.
Above-described embodiment only for explaining that the present invention makes thinking, and should not limit protection scope of the present invention.
Claims (3)
1. a manufacture method for radial iron core cake, its step is as follows:
(1) cut-parts reason material: cut the magnetic conduction silicon steel sheet sheet stock that different sheet is wide; By most lengthy motion picture to the magnetic conduction silicon steel sheet sheet stock arranged in sequence of most short-movie, be organized into a sheet stock group; Then, being provided with in the carrier of subregion dividing plate by height to being uprightly placed on one by group, forming one radially and after the sheet stock of loose arrangement circle, justify on outline periphery at sheet stock and be nested with an outer ring;
(2) centrifugal screening: by described carrier together with sheet stock circle and outer ring fixed placement on a rotary-tray, rotate this rotary-tray and carry out centrifugal screening;
(3) contracting circle is shaping: remove outer ring, subregion dividing plate after centrifugal screening completes, and inserts the center that a diameter and radial iron core cake center-hole diameter match in the center of sheet stock circle and determine pipe, between sheet stock, insert earth connection; Then, wire line thimble on sheet stock circle outline periphery cover, is inserted in prefabricated insulation retainer plate successively, sheds wire line thimble and pipe is determined at center by mechanical force after tightening up wire line thimble, the radial iron core cake of a positive round.
2. manufacture method as claimed in claim 1, is characterized in that: described insulation retainer plate is pressed into by press.
3. manufacture method as claimed in claim 1, is characterized in that: the two ends of described wire line thimble are controlled the degree of tightness of wire line thimble by hydraulic press push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149377.9A CN104124048B (en) | 2013-04-26 | 2013-04-26 | A kind of manufacture method of radial iron core cake |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149377.9A CN104124048B (en) | 2013-04-26 | 2013-04-26 | A kind of manufacture method of radial iron core cake |
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| Publication Number | Publication Date |
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| CN104124048A CN104124048A (en) | 2014-10-29 |
| CN104124048B true CN104124048B (en) | 2016-04-13 |
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| CN201310149377.9A Active CN104124048B (en) | 2013-04-26 | 2013-04-26 | A kind of manufacture method of radial iron core cake |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111524690A (en) * | 2020-06-09 | 2020-08-11 | 吴江变压器有限公司 | Iron core cake of iron core reactor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254587Y (en) * | 1995-03-30 | 1997-05-21 | 西安变压器厂 | High-activity coefficient radiation reactor iron-core cake |
| CN101707136A (en) * | 2009-11-09 | 2010-05-12 | 常山科升电力设备有限公司 | Method for manufacturing iron core cake of electric reactor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713724A (en) * | 1980-06-30 | 1982-01-23 | Nissin Electric Co Ltd | Manufacture of radial core |
| JPS5731118A (en) * | 1980-08-02 | 1982-02-19 | Fuji Electric Co Ltd | Core for reactor |
| JPS5742111A (en) * | 1980-08-26 | 1982-03-09 | Fuji Electric Co Ltd | Manufacture of reactor core |
| JPS59177910A (en) * | 1983-03-29 | 1984-10-08 | Toshiba Corp | Equipment for manufacture of core |
| JPS60161603A (en) * | 1984-02-02 | 1985-08-23 | Toshiba Corp | Radial core |
| JPH0950921A (en) * | 1995-08-07 | 1997-02-18 | Meidensha Corp | Iron-core reactor with gap |
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2013
- 2013-04-26 CN CN201310149377.9A patent/CN104124048B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254587Y (en) * | 1995-03-30 | 1997-05-21 | 西安变压器厂 | High-activity coefficient radiation reactor iron-core cake |
| CN101707136A (en) * | 2009-11-09 | 2010-05-12 | 常山科升电力设备有限公司 | Method for manufacturing iron core cake of electric reactor |
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| CN104124048A (en) | 2014-10-29 |
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