CN102005872B - Slot turning process for stator coil and auxiliary tooling device thereof - Google Patents
Slot turning process for stator coil and auxiliary tooling device thereof Download PDFInfo
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- CN102005872B CN102005872B CN201010587704A CN201010587704A CN102005872B CN 102005872 B CN102005872 B CN 102005872B CN 201010587704 A CN201010587704 A CN 201010587704A CN 201010587704 A CN201010587704 A CN 201010587704A CN 102005872 B CN102005872 B CN 102005872B
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Abstract
The invention relates to a slot turning process for a stator coil and an auxiliary tooling device thereof. The process of the invention comprises the following steps: flatly wrapping a spread coil with a white cloth tape compactly once, wherein the white cloth tape is not allowed to be overlapped at a straight line edge; then preforming in a slot turning mold; compacting a lower layer edge of the coil by a coil rod and a slot wedge in the slot turning mold; then raising a first coil out of an iron core to a certain height, and raising the rest coils sequentially to be higher than the previous coil for a certain distance; in the process of raising at the upper layer edge, applying force vertical to the direction of an iron core surface for providing a guarantee for inserting the next coil smoothly; when each coil is raised, fixing a special iron rod and the upper layer edge firmly with a nylon cable tie; then raising the upper layer edge by a slot turning rod; after slot turning of the coil is finished, withdrawing the slot wedge, and taking out the coil rod and the like; when the lower layer edge of the coil is out of the slot, raising out the lower layer edge integrally by the special iron rod, wherein the straight line edge after the lower layer edge is raised out is straight without deformation; after slot turning is finished, removing the white cloth tape of the coil; wrapping outer insulation according to the insulation wrapping requirement of the coil; and normally inserting the coil as a slot turning position coil after the coil meets the requirement.
Description
Technical field
The present invention relates to a kind of manufacture craft and device of motor stator; Refer in particular to that stator coil turns over groove technology and servicing unit turns over channel mould; This stator coil turns over groove technology and servicing unit thereof and turns over channel mould and can effectively control the deflection that turns over coil in the groove process; Reduce the damage that coil insulation possibly cause in turning over the groove process, guarantee to turn over the reliability of slot coil insulation.
Background technology
All large-scale stator coils turn over the embedding method that groove adopts the hard winding of stator usually at present; Can be divided into embedding inlay technique and insertion; The multiturn formed coil can only be used embedding inlay technique; When being embedded to the coil of last pitch, need outer round surface unshakable in one's determination be raised on the limit, upper strata of first pitch coil, the distance of rising is as the criterion can make in last pitch coil lower floor limit embedded groove.In this lifting process, coil turn is more, and rigidity is bigger, and the lower floor limit is repeated stressed in groove, easily coil outsourcing insulation is caused damage, particularly notch position, and the damage back is difficult for finding.
Coil is the heart of motor, and the quality of coil insulation directly influences the life-span of motor operation.And coil is the most serious to the coil insulation damage to turn over groove especially in the setting-in process.Therefore necessary this is improved.
Summary of the invention
The objective of the invention is to overcome existing major diameter direct wind-driven generator stator turns over and possibly exist the deflection of coil wayward in the groove process; Cause the coil damage easily; And the insecure problem of coil insulation; Provide a kind of and can effectively control the deflection that turns over coil in the groove process, reduce the damage that coil insulation possibly cause in turning over the groove process, the stator coil of guaranteeing to turn over the reliability of slot coil insulation turns over groove technology and frock thereof.
The technical scheme that the present invention adopted is: a kind of stator coil turns over groove technology, the coil behind the type that will rise, and with the flat bag of tape once, wrapping is compact, and tape does not allow in straight line overlap joint, preforming in turning over channel mould then.In turning over channel mould, coil lower floor limit is compressed again with line rod and slot wedge, can be through filler strip adjustment elasticity; The lower floor limit must compress, otherwise the lower floor limit can be out of shape in turning over the groove process.Then first coil carried away the certain altitude that arrives unshakable in one's determination, all the other several successively than last high certain distance; In limit, upper strata lifting process, need vertical face direction unshakable in one's determination firmly, for follow-up smooth rule is given security.Every coil is used the nylon cable tie fixation with special-purpose iron staff and limit, upper strata when lifting, then with turning over the groove rod with the lifting of limit, upper strata.Coil withdraws from slot wedge after turning over the groove completion, takes out line rod etc., when coil lower floor limit goes out groove, needs with special-purpose iron staff integral body the lower floor limit is carried away, and straight line is straight after carrying away, distortion free.The coil that turns over after groove is accomplished is removed tape, requires to carry out the wrapping that outsourcing is insulated according to the coil insulation wrapping, and the back that meets the requirements is as turning over the normal rule of groove position coil.
Turning over groove technology auxiliary mould according to the stator coil that said method proposed is: a kind of stator coil turns over the groove auxiliary mould; Be a kind of auxiliary channel mould that turns over; This turns over channel mould and uses identical punching segmentation with stator in kind to be overrided to form, and required groove number was as the criterion when the groove number turned over groove to satisfy; Turn over channel mould and comprise end plate, tooth support, punching and cushion block.Wherein, punching is divided into two sections, welds one of formation after two sections punchings laminate respectively and has the die body that turns over groove; Between two sections punchings, be welded with cushion block, the two ends of two sections punchings is welded with tooth support respectively, is welded with end plate under the tooth support.Through turning over channel mould, can realize turning over the predeformation of slot coil.Coil after the shaping is as turning over the normal rule of groove position coil.
Beneficial effect of the present invention is, adopting the said stator coil to turn over groove technology auxiliary mould has following advantage: the first, turning on the channel mould to coil molding dynamics when making things convenient for control coil to turn over groove and deflection; The second, coil outsourcing tape when turning over groove can effectively be protected the body insulation; The 3rd, coil is removed the wrapping that tape carries out insulation against ground again after turning over the groove shaping, has avoided turning over the damage that possibly cause the outsourcing insulation in the groove process; The 4th, turn over the implementation of groove technology through stator coil of the present invention, turn over the slot coil puncture voltage and bring up to more than the 10000V by original 7000V, improved the reliability of insulation.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a vertical view of the present invention;
Among the figure: 1. end plate, 2. tooth support, 3. punching, 4. square spacer block.
Embodiment
To combine accompanying drawing and embodiment that the present invention is done further description below.
The present invention turns over groove technology for a kind of stator coil, the coil behind the type that will rise, and with the flat bag of tape once, wrapping is compact, and tape does not allow in straight line overlap joint, preforming in turning over channel mould then.In turning over channel mould, coil lower floor limit is compressed again with line rod and slot wedge, can be through filler strip adjustment elasticity; The lower floor limit must compress, otherwise the lower floor limit can be out of shape in turning over the groove process.Then first coil carried away the certain altitude that arrives unshakable in one's determination, all the other several successively than last high certain distance; In limit, upper strata lifting process, need vertical face direction unshakable in one's determination firmly, for follow-up smooth rule is given security.Every coil is used the nylon cable tie fixation with special-purpose iron staff and limit, upper strata when lifting, then with turning over the groove rod with the lifting of limit, upper strata.Coil withdraws from slot wedge after turning over the groove completion, takes out line rod etc., when coil lower floor limit goes out groove, needs with special-purpose iron staff integral body the lower floor limit is carried away, and straight line is straight after carrying away, distortion free.The coil that turns over after groove is accomplished is removed tape, requires to carry out the wrapping that outsourcing is insulated according to the coil insulation wrapping, and the back that meets the requirements is as turning over the normal rule of groove position coil.
Turn over groove technology auxiliary mould such as Fig. 1, shown in Figure 2 according to the stator coil that said method proposed; For a kind of stator coil turns over the groove auxiliary mould; Turn over channel mould for a kind of assisting, this turns over channel mould and uses identical punching segmentation with stator in kind to be overrided to form, and required groove number was as the criterion when the groove number turned over groove to satisfy; Turn over channel mould and comprise end plate 1, tooth support 2, punching 3 and cushion block 4.Wherein, punching 3 is divided into two sections, welds one of formation after two sections punchings 3 laminate respectively and has the die body that turns over groove; The two ends that between two sections punchings 3, is welded with 4, two sections punchings 3 of cushion block is welded with tooth support 2 respectively, and tooth support is welded with end plate 12 times.Through turning over channel mould, can realize turning over the predeformation of slot coil.Coil after the shaping is as turning over the normal rule of groove position coil.
Claims (2)
1. a stator coil turns over groove technology, it is characterized in that: the coil behind the type that will rise, and with the flat bag of tape once, wrapping is compact, and tape does not allow in straight line overlap joint, preforming in turning over channel mould then; In turning over channel mould, coil lower floor limit is compressed again with line rod and slot wedge, can be through filler strip adjustment elasticity; Then first coil carried away the certain altitude that arrives unshakable in one's determination, all the other several successively than last high certain distance; In limit, upper strata lifting process, need vertical face direction unshakable in one's determination firmly, for follow-up smooth rule is given security; Every coil is used the nylon cable tie fixation with special-purpose iron staff and limit, upper strata when lifting, then with turning over the groove rod with the lifting of limit, upper strata; Coil withdraws from slot wedge after turning over the groove completion, takes out line rod etc., when coil lower floor limit goes out groove, needs with special-purpose iron staff integral body the lower floor limit is carried away, and straight line is straight after carrying away, distortion free; The coil that turns over after groove is accomplished is removed tape, requires to carry out the wrapping that outsourcing is insulated according to the coil insulation wrapping, and the back that meets the requirements is as turning over the normal rule of groove position coil;
The described channel mould that turns over uses identical punching segmentation with stator in kind to be overrided to form, and required groove number was as the criterion when the groove number turned over groove to satisfy; Turn over channel mould and comprise end plate, tooth support, punching and cushion block; Wherein, punching is divided into two sections, welds one of formation after two sections punchings laminate respectively and has the die body that turns over groove; Between two sections punchings, be welded with cushion block, the two ends of two sections punchings is welded with tooth support respectively, is welded with end plate under the tooth support; Through turning over channel mould, realize turning over the predeformation of slot coil.
2. stator coil as claimed in claim 1 turns over groove technology, it is characterized in that: the lower floor limit must compress, to prevent that the lower floor limit can be out of shape in turning over the groove process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010587704A CN102005872B (en) | 2010-12-15 | 2010-12-15 | Slot turning process for stator coil and auxiliary tooling device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010587704A CN102005872B (en) | 2010-12-15 | 2010-12-15 | Slot turning process for stator coil and auxiliary tooling device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102005872A CN102005872A (en) | 2011-04-06 |
| CN102005872B true CN102005872B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010587704A Active CN102005872B (en) | 2010-12-15 | 2010-12-15 | Slot turning process for stator coil and auxiliary tooling device thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611260B (en) * | 2012-04-18 | 2013-07-31 | 上海电气集团上海电机厂有限公司 | Method for inserting line in stator winding of synchronous motor of nuclear power supply |
| CN103915957B (en) * | 2014-03-31 | 2016-08-17 | 江苏中车电机有限公司 | A kind of aerogenerator stator coil rollover slot device |
| CN105048726B (en) * | 2015-08-25 | 2017-04-05 | 中国水利水电第十四工程局有限公司 | A kind of equipment removed for power station stator bar |
| EP3547501A1 (en) * | 2018-03-27 | 2019-10-02 | Siemens Aktiengesellschaft | Stator segment |
| CN113674986B (en) * | 2021-10-20 | 2023-09-15 | 成都中车电机有限公司 | Annular sectional type production line for wind power coils |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4521955A (en) * | 1983-07-11 | 1985-06-11 | General Electric Company | Method of making a ducted dry type transformer |
| CN201207606Y (en) * | 2008-08-28 | 2009-03-11 | 铁道部运输局 | Wire embedding and slot turning device for stator |
| CN101459358A (en) * | 2009-01-14 | 2009-06-17 | 湘潭电机股份有限公司 | AC rectifying type charging electricity generator rotor winding for ship, manufacturing and embedding method thereof |
| CN101552518A (en) * | 2009-01-08 | 2009-10-07 | 湘潭电机股份有限公司 | Manufacture of stator winding of AC rectifying charging generator and embedding method |
-
2010
- 2010-12-15 CN CN201010587704A patent/CN102005872B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4521955A (en) * | 1983-07-11 | 1985-06-11 | General Electric Company | Method of making a ducted dry type transformer |
| CN201207606Y (en) * | 2008-08-28 | 2009-03-11 | 铁道部运输局 | Wire embedding and slot turning device for stator |
| CN101552518A (en) * | 2009-01-08 | 2009-10-07 | 湘潭电机股份有限公司 | Manufacture of stator winding of AC rectifying charging generator and embedding method |
| CN101459358A (en) * | 2009-01-14 | 2009-06-17 | 湘潭电机股份有限公司 | AC rectifying type charging electricity generator rotor winding for ship, manufacturing and embedding method thereof |
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| CN102005872A (en) | 2011-04-06 |
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