CN101640456A - Method for machining magnetic poles on AC/AC variable-frequency steel-rolling motor rotors - Google Patents
Method for machining magnetic poles on AC/AC variable-frequency steel-rolling motor rotors Download PDFInfo
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- CN101640456A CN101640456A CN200810041236A CN200810041236A CN101640456A CN 101640456 A CN101640456 A CN 101640456A CN 200810041236 A CN200810041236 A CN 200810041236A CN 200810041236 A CN200810041236 A CN 200810041236A CN 101640456 A CN101640456 A CN 101640456A
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Abstract
The invention discloses a magnetic pole structure for AC/AC variable-frequency steel-rolling motor rotors, and a machining method thereof. The magnetic pole comprises a magnetic-pole core and a magnetic-pole coil, wherein the center of the end face of the a pole body is provided with a through hole along the axial direction; the surfaces of two sides of the pole body are lined with two layers of polyester felt impregnated with epoxy curing agent, and an epoxy glass fabric plate 1 millimeter thick is clamped between the two layers of polyester felt; the surfaces of two ends of the pole body arelined with two layers of polyester felt impregnated with the epoxy curing agent, and an epoxy glass fabric plate 10 millimeters thick is clamped between the two layers of polyester felt; the surfacesof four corners of the pole body are provided with the polyester felt impregnated with the epoxy curing agent; a first magnetic-pole lining and a second magnetic-pole lining are arranged between theupper surface of the magnetic-pole coil and the lower surface of a pole shoe; and the first magnetic-pole lining and the second magnetic-pole lining are arranged between the lower surface of the magnetic-pole coil and the surface of a magnetic yoke. The method has the advantages of effectively improving the ground insulation performance of the magnetic-pole coil and ensuring that the magnetic-polecoil can be pressed and arranged more tightly.
Description
Technical field
The present invention relates to a kind of processing method of magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor.
Background technology
High-power, slow-speed of revolution frequency control roughing motor is the roughing motor of capacity 7200kW, and number of poles is 16P, and voltage is 3000V, rotating speed is 40～80r/min, and rotor diameter is 3030mm, and length overall is 7407mm, this motor pole long 2000mm that is unshakable in one's determination, magnetic pole heavily is 1880kg.Usually the processing method of motor pole is that the pole coil insulation against ground is made on the pole core, also be pole coil is placed turn-to-turn insulation during coiling on bobbin after, install to iron core at cover and go forward, a series of insulating barriers are set on pole body and are coated with, so that the pole coil insulation against ground with insulating varnish.This kind method can only be used for short iron core and less magnetic pole, because the pole core length on this roughing motor belongs to king-size, pole coil insulation resistance over the ground will be up to more than 100 megaohms, so the insulation against ground of pole coil is the most important thing of this magnetic pole processing.
Summary of the invention
The objective of the invention is provides a kind of processing method of magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor in order to overcome the deficiencies in the prior art, and this method can improve the insulation against ground performance of pole coil effectively and make more fastening that pole coil press-fits.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of field structure of AC/AC (alternating current) variable-frequency steel-rolling motor rotor, and comprise pole core and be sleeved on pole coil on the pole body with pole body and pole shoe, wherein,
The end face center of described pole body is offered a through hole vertically and place a pull bar rotationally in this through hole;
The both side surface pad of described pole body is two-layer to be soaked with the terylene felt of epoxy hardener and to establish the epoxy resin bonded fiber that a thickness is 1mm in the therebetween of this two-layer terylene felt, pad is two-layer surface, the two ends of described pole body is soaked with the terylene felt of epoxy hardener and establishes the epoxy resin bonded fiber that a thickness is 10mm in the therebetween of this two-layer terylene felt, and four corner surface of described pole body are provided with the terylene felt that is soaked with epoxy hardener;
Be provided with the first magnetic pole liner and the second magnetic pole liner between the upper surface of described pole coil and the pole shoe lower surface, be provided with the first magnetic pole liner and the second magnetic pole liner between the lower surface of described pole coil and the yoke surfaces.
The field structure of above-mentioned AC/AC (alternating current) variable-frequency steel-rolling motor rotor wherein, all scribbles epoxy hardener on described pole body surface, the first magnetic pole liner and the second magnetic pole liner.
The field structure of above-mentioned AC/AC (alternating current) variable-frequency steel-rolling motor rotor, wherein, the thickness of described terylene felt is 2mm,
The another kind of technical scheme that realizes above-mentioned purpose is: a kind of processing method of magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor, comprise the isolation step and the compaction step of pole coil,
Described isolation step comprises: the through hole at sealing pole body two ends; All be coated with epoxy hardener on pole body surface, the first magnetic pole liner, the second magnetic pole liner and the terylene felt; Apply ointment or plaster two-layer terylene felt on the pole body two sides and be the epoxy resin bonded fiber of 1mm at two-layer terylene felt therebetween one thickness; The suit pole coil; Between pole body both ends of the surface and pole coil, be the epoxy resin bonded fiber jam-pack of 10mm with two-layer terylene felt and at two-layer terylene felt therebetween one thickness, place the first magnetic pole liner, the second magnetic pole liner, between four corner surface of pole body and pole coil, all using terylene felt jam-pack;
Described compaction step comprises: be installed on the second magnetic pole liner of pole coil bottom surface with special-purpose compaction tool and between the compaction tool and the second magnetic pole liner liner tetrafluoroethene, screw the clamp nut on the compaction tool; Advancing drying room cures; Go out behind the drying room while hot once more plate nut tightly admittedly; The electric property of cooling back test magnetic pole, compaction tool is removed in back up to standard.
The processing method of the magnetic pole of above-mentioned AC/AC (alternating current) variable-frequency steel-rolling motor rotor, wherein said to advance that drying room cures be when drying room is warming up to 155 ℃, is incubated 20 hours.
The processing method of the magnetic pole of above-mentioned AC/AC (alternating current) variable-frequency steel-rolling motor rotor, wherein, also be included in the lower surface of the finishing second magnetic pole liner after the compaction step, so that the lower surface of the second magnetic pole liner maintains an equal level with the intrados minimum point of pole core or is lower than the step of 0～0.5mm.
The processing method of the magnetic pole of above-mentioned AC/AC (alternating current) variable-frequency steel-rolling motor rotor, wherein, the lower surface that also is included in the finishing second magnetic pole liner is afterwards in pole core and the surperficial step that sprays insulation enamel paint of pole coil.
The technical scheme of the processing method of the pole core of AC/AC (alternating current) variable-frequency steel-rolling motor rotor of the present invention, the insulation against ground that this motor pole machining characteristics is a pole coil is made on the pole coil, promptly except pole coil is placed turn-to-turn insulation and main insulation during fabrication, also when suit coil unshakable in one's determination at coil two end cushioning magnetic pole liners, coil is with plug terylene felt and epoxy resin bonded fiber between the iron core, improve the insulation against ground performance of pole coil effectively, make more fastening that pole coil press-fits.
Description of drawings
Fig. 1 is the structural representation of the magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor of the present invention;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the enlarged drawing of A among Fig. 3;
The enlarged drawing of B in Fig. 5 bitmap 3;
Fig. 6 is the positive line of vision ground state diagram of compaction step in the processing method of magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor of the present invention;
Fig. 7 be compaction step in the processing method of magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor of the present invention side-looking to state diagram.
Embodiment
In order to understand technical scheme of the present invention better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:
See also Fig. 1 to Fig. 5, the field structure of AC/AC (alternating current) variable-frequency steel-rolling motor rotor of the present invention comprises pole core 1 and pole coil 2.Pole core 1 has pole body 11 and pole shoe 12; Pole coil 2 is sleeved on the pole body 11, wherein,
The end face center of pole body 11 is offered a through hole 110 vertically and place a pull bar 3 rotationally in this through hole 110;
Pad is two-layer between the both side surface of pole body 11 and the pole coil 2 is soaked with terylene felt 4 that epoxy hardener thickness is 2mm and establishes the epoxy resin bonded fiber 5 that a thickness is 1mm in the therebetween of this two-layer terylene felt 4, pad is two-layer between two end surfaces of pole body 11 and the pole coil 2 is soaked with terylene felt 4 that epoxy hardener thickness is 2mm and establishes the epoxy resin bonded fiber 6 that a thickness is 10mm in the therebetween of this two-layer terylene felt 4, is provided with the terylene felt 7 that is soaked with epoxy hardener between four corner surface of pole body 11 and the pole coil 2;
Be provided with between the upper surface of pole coil 2 and the pole shoe lower surface and scribble the epoxy hardener first magnetic pole liner 8 and the second magnetic pole liner 9, be provided with between the lower surface of pole coil 4 and the yoke surfaces (not shown) and scribble the epoxy hardener first magnetic pole liner 8 and the second magnetic pole liner 9.
See also Fig. 6 and Fig. 7 again, the processing method of the magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor of the present invention comprises the isolation step and the compaction step of pole coil, wherein,
Isolation step comprises:
Check the two sides of pole core 1 and the linearity of arc surface,, prevent that the insulating varnish infiltration from causing pull bar 3 rotatable with the two ends through hole 10 of insulating paper sealing pole body 11;
All be coated with epoxy hardener on the surface of pole body 11 (removing circular-arc bottom face), the first magnetic pole liner 8, the second magnetic pole liner 9 and the terylene felt 4,7;
With two layers of thickness is that the terylene felt 4 of 2mm is applied ointment or plaster on pole body 11 two sides and is the epoxy resin bonded fiber 5 of 1mm at two-layer terylene felt 4 therebetween one thickness;
Place the first magnetic pole liner 8, the second magnetic pole liner 9 and suit pole coil 2 to pole body;
Between pole body 11 both ends of the surface and pole coil 2 inner surfaces, be the terylene felt of 2mm and epoxy resin bonded fiber 6 jam-packs that are 10mm at two-layer terylene felt therebetween one thickness with two layers of thickness, place the first magnetic pole liner 8, the second magnetic pole liner 9, between four corner surface of pole body 11 and pole coil 2 inner surfaces, all using terylene felt 7 jam-packs.
Compaction step comprises:
Be installed on the second magnetic pole liner 9 of pole coil 2 bottom surfaces with special-purpose compaction tool 10 and between the compaction tool 10 and the second magnetic pole liner 9 the liner tetrafluoroethene, screw the clamp nut 100 on the compaction tool 10;
Advance drying room and cure, when drying room is warming up to 155 ℃, be incubated 20 hours;
Go out behind the drying room while hot once more plate nut 100 tightly admittedly;
The electric property of cooling back test magnetic pole comprises insulation resistance, ac voltage withstanding and the interturn test of testing magnetic pole, and compaction tool 10 is removed in back up to standard;
Repair the lower surface of the second magnetic pole liner 9, so that the lower surface of the second magnetic pole liner 9 maintains an equal level with the intrados minimum point O of pole core 1 or is lower than 0～0.5mm, do a thickness is 9.136 for this reason
0 + 0.02The frock chock of mm, the instrument ruler is rested on the circular arc wedge angle limit, pole core 1 bottom surface, the lower surface of the relief grinding second magnetic pole liner 9 on one side, with frock chock constantly check the spacing of the lower surface of ruler and second magnetic pole liner 9 on one side, scrape being as the criterion with the frock chock;
At pole core (removing circular-arc bottom face) and pole coil surface spraying rust insulation enamel paint with the yoke contact.
The field structure of AC/AC (alternating current) variable-frequency steel-rolling motor rotor of the present invention improves the insulation against ground performance of pole coil effectively, carries out limit flanging plug insulating cell again when being press fit into pole coil on the pole body again, makes more fastening that pole coil press-fits.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (7)
1. the field structure of an AC/AC (alternating current) variable-frequency steel-rolling motor rotor comprises the pole core with pole body and pole shoe and is sleeved on pole coil on the pole body, it is characterized in that,
The end face center of described pole body is offered a through hole vertically and place a pull bar rotationally in this through hole;
The both side surface pad of described pole body is two-layer to be soaked with the terylene felt of epoxy hardener and to establish the epoxy resin bonded fiber that a thickness is 1mm in the therebetween of this two-layer terylene felt, pad is two-layer surface, the two ends of described pole body is soaked with the terylene felt of epoxy hardener and establishes the epoxy resin bonded fiber that a thickness is 10mm in the therebetween of this two-layer terylene felt, and four corner surface of described pole body are provided with the terylene felt that is soaked with epoxy hardener;
Be provided with the first magnetic pole liner and the second magnetic pole liner between the upper surface of described pole coil and the pole shoe lower surface, be provided with the first magnetic pole liner and the second magnetic pole liner between the lower surface of described pole coil and the yoke surfaces.
2. the field structure of AC/AC (alternating current) variable-frequency steel-rolling motor rotor according to claim 1 is characterized in that, all scribbles epoxy hardener on described pole body surface, the first magnetic pole liner and the second magnetic pole liner.
3. the field structure of AC/AC (alternating current) variable-frequency steel-rolling motor rotor according to claim 1 is characterized in that, the thickness of described terylene felt is 2mm,
4. the processing method of the magnetic pole of an AC/AC (alternating current) variable-frequency steel-rolling motor rotor comprises it is characterized in that the isolation step and the compaction step of pole coil,
Described isolation step comprises: the through hole at sealing pole body two ends; All be coated with epoxy hardener on pole body surface, the first magnetic pole liner, the second magnetic pole liner and the terylene felt; Apply ointment or plaster two-layer terylene felt on the pole body two sides and be the epoxy resin bonded fiber of 1mm at two-layer terylene felt therebetween one thickness; The suit pole coil; Between pole body both ends of the surface and pole coil, be the epoxy resin bonded fiber jam-pack of 10mm with two-layer terylene felt and at two-layer terylene felt therebetween one thickness, place the first magnetic pole liner, the second magnetic pole liner, between four corner surface of pole body and pole coil, all using terylene felt jam-pack;
Described compaction step comprises: be installed on the second magnetic pole liner of pole coil bottom surface with special-purpose compaction tool and between the compaction tool and the second magnetic pole liner liner tetrafluoroethene, screw the clamp nut on the compaction tool; Advancing drying room cures; Go out behind the drying room while hot once more plate nut tightly admittedly; The electric property of cooling back test magnetic pole, compaction tool is removed in back up to standard.
5. the processing method of the magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor according to claim 4 is characterized in that, described to advance that drying room cures be when drying room is warming up to 155 ℃, is incubated 20 hours.
6. the processing method of the magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor according to claim 4, it is characterized in that, also be included in the lower surface of the finishing second magnetic pole liner after the compaction step, so that the lower surface of the second magnetic pole liner maintains an equal level with the intrados minimum point of pole core or is lower than the step of 0～0.5mm.
7. the processing method of the magnetic pole of AC/AC (alternating current) variable-frequency steel-rolling motor rotor according to claim 4 is characterized in that, the lower surface that also is included in the finishing second magnetic pole liner is afterwards in pole core and the surperficial step that sprays insulation enamel paint of pole coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100412364A CN101640456B (en) | 2008-07-31 | 2008-07-31 | Method for machining magnetic poles on AC/AC variable-frequency steel-rolling motor rotors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100412364A CN101640456B (en) | 2008-07-31 | 2008-07-31 | Method for machining magnetic poles on AC/AC variable-frequency steel-rolling motor rotors |
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| Publication Number | Publication Date |
|---|---|
| CN101640456A true CN101640456A (en) | 2010-02-03 |
| CN101640456B CN101640456B (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100412364A Expired - Fee Related CN101640456B (en) | 2008-07-31 | 2008-07-31 | Method for machining magnetic poles on AC/AC variable-frequency steel-rolling motor rotors |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814802A (en) * | 2010-04-19 | 2010-08-25 | 上海电气集团上海电机厂有限公司 | Technology for processing rotor yoke for salient pole type synchronous motor |
| CN102235924A (en) * | 2010-05-07 | 2011-11-09 | 杭州自动化技术研究院有限公司 | Freely opened and closed magnetic stress sensor |
| CN103887058A (en) * | 2014-03-19 | 2014-06-25 | 广东海鸿变压器有限公司 | Method for assembling transformer body and transformer body structure |
| CN109768676A (en) * | 2019-03-18 | 2019-05-17 | 国家电网有限公司 | Rotor magnetic pole shroud loosens processing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414812C (en) * | 2001-12-11 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Iron core laminated structure of motor and making process thereof |
| CN100486084C (en) * | 2001-12-18 | 2009-05-06 | 乐金电子(天津)电器有限公司 | Press fit flux shielding layer synchronous magnetic resistance motor rotor and its manufacturing method |
-
2008
- 2008-07-31 CN CN2008100412364A patent/CN101640456B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814802A (en) * | 2010-04-19 | 2010-08-25 | 上海电气集团上海电机厂有限公司 | Technology for processing rotor yoke for salient pole type synchronous motor |
| CN102235924A (en) * | 2010-05-07 | 2011-11-09 | 杭州自动化技术研究院有限公司 | Freely opened and closed magnetic stress sensor |
| CN103887058A (en) * | 2014-03-19 | 2014-06-25 | 广东海鸿变压器有限公司 | Method for assembling transformer body and transformer body structure |
| CN103887058B (en) * | 2014-03-19 | 2016-08-17 | 海鸿电气有限公司 | The assembly method of a kind of transformer body and structure of transformer body thereof |
| CN109768676A (en) * | 2019-03-18 | 2019-05-17 | 国家电网有限公司 | Rotor magnetic pole shroud loosens processing method |
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| CN101640456B (en) | 2011-03-30 |
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Granted publication date: 20110330 Termination date: 20180731 |