CN102611260B - Method for inserting line in stator winding of synchronous motor of nuclear power supply - Google Patents
Method for inserting line in stator winding of synchronous motor of nuclear power supply Download PDFInfo
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- CN102611260B CN102611260B CN 201210113745 CN201210113745A CN102611260B CN 102611260 B CN102611260 B CN 102611260B CN 201210113745 CN201210113745 CN 201210113745 CN 201210113745 A CN201210113745 A CN 201210113745A CN 102611260 B CN102611260 B CN 102611260B
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Abstract
The invention discloses a method for inserting a line in a stator winding of a synchronous motor of a nuclear power supply, comprising the following steps of: line insertion preparation; coil insertion: firstly dispersing three coil elements which are arranged in parallel on a lower-layer line side of each turn of coils of a first group of coils to be arranged up and down, sequentially pulling the three coil elements from a left end slot opening downwards into a magnetic slot, pushing a coil element which is firstly placed in the magnetic slot towards the right side, smoothly resetting the three coil elements in parallel, placing an interlayer filler strip on the upper end of the lower-layer line side, and dispersing another three coil elements which are arranged in parallel on an upper-layer line side of each turn of coils of a second group of coils to be arranged up and down and to be correspondingly and permanently embedded in the upper part of the lower-layer line side of each turn of coils of the first group of coils; slot opening sealing; end part binding; and wiring. The method disclosed by the invention has the advantages of being capable of saving a large quantity of coils and insulating materials, greatly reducing the manufacturing cost of a motor and enabling the structure of a stator to be relatively compact.
Description
Technical field
The present invention relates to a kind of coil-inserting method of stator winding of the synchronous machine that is used for nuclear-electric power supply.
Background technology
The synchronous machine that is used for nuclear-electric power supply is the synchronous generator unit that power supply is provided for the nuclear control rod, and its quality of stability and security reliability require very high, aborning must the strict crudy of controlling each operation.Stator is interior press mounting structure and is made up of diffusing rule circle, stator core, end hoop, conducting ring, busbar, outgoing line device and insulating material etc.Stator built-in line technology is the master operation that motor is produced, the design feature of this stator mainly contains 3 points: the magnetic groove on (1) stator punching is that the structure of semi-open slot and notch are partially in the left side of magnetic groove, the angle of notch sharp corner is 20 ℃, the width of notch accounts for the width of whole magnetic groove less than 1/2nd, so the notch size is little; (2) the magnetic groove shape of whole stator core is a flume structure, and this is rare in stator structure; (3) loop construction is special, and every group of coil is made of some circle coils, and every circle coil adopts 6 two three transversely arranged coil parts of glass copper cash coiled, and each coil part is arranged above and below by two two glass copper copper cash and constitutes, and the rule difficulty is increased.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, a kind of coil-inserting method of stator winding of the synchronous machine that is used for nuclear-electric power supply is provided, it can improve the production efficiency of motor and can guarantee the quality of product.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of coil-inserting method of stator winding of the synchronous machine that is used for nuclear-electric power supply may further comprise the steps:
The step that rule is prepared, standing groove heelpiece bar and slot liner successively in the magnetic groove of stator core earlier adopt and special-purpose hang the two ends that the bander is contained in stator winding and fix an end hoop respectively, and the interior round concentricity that makes end hoop and stator core is less than 2mm;
Set the step of coil, at first following layer line limit three coil parts side by side of every circle coil of first group of coil are shattered into and are arranged above and below, successively three coil parts are drawn in downwards in the magnetic groove from the left end notch, push the coil part that is introduced in the magnetic groove to right side, to reset three coil parts smooth side by side, make three coil parts on following layer line limit of every circle coil simultaneously entirely docile in the magnetic groove bottom, follow upper ends interlayer filler strip on following layer line limit, with striking plate layer line limit and interlayer filler strip strike tight in the lump and be convinced down, simultaneously last layer line limit three coil parts side by side of every circle coil of first group of coil are shattered into and are arranged above and below and are embedded in the corresponding pitch groove temporarily, and with the interim colligation in two ends on the last layer line limit of every circle coil of this first group of coil on described end hoop, again last layer line limit three coil parts side by side of every circle coil of second group of coil are shattered into the top on following layer line limit that is arranged above and below and forever is embedded in every circle coil of first group of coil accordingly, make three coil parts on last layer line limit of every circle coil of second group of coil simultaneously entirely docile in the interlayer filler strip, the rest may be inferred, set every group of coil one by one, when meet in the last layer line limit of every circle coil of the following layer line limit of every circle coil that is embedded into last group coil and first group of coil, earlier support is stood up and removes the interim binding wire that two ends and the end on last layer line limit of every circle coil of first group of coil binds round, with bias tape three coil parts on the last layer line limit of every circle coil of first group of coil are sling in groove one by one again, then with filler strip between the following layer line limit embedding of every circle coil of last group coil and leveling and placed layer, put down one by one at last first group of coil every circle coil last layer line limit three coil parts and flatten;
The step of sealing groove mouth, earlier with scissors cut off stretch out the unnecessary slot liner of notch and with strike plate with the coil in the magnetic groove strike tight after, the slot liner that notch is stayed collapses and is pressed in the magnetic groove, puts into filler strip under the wedge again, throws slot wedge into after beating out filler strip;
The step of end banding is carried out end coil and the colligation that end binds round earlier, carries out the colligation of end coil and end coil again;
The wiring step comprises being connected of wiring between every circle coil, coil lead and ring in parallel and being connected of ring in parallel and busbar; Butt joint silver soldering is adopted in wiring between every circle coil, coil lead and ring in parallel be connected and ring in parallel overlaps silver soldering with the employing that is connected of busbar.
The coil-inserting method of the stator winding of the above-mentioned synchronous machine that is used for nuclear-electric power supply wherein, will carry out the end shaping earlier before the described end banding step.
The coil-inserting method of the stator winding of the above-mentioned synchronous machine that is used for nuclear-electric power supply, wherein, when carrying out the step of end banding, with crosswise colligation twice, the non-leading-out terminal of coil with the glass fiber becket bridle around the ground colligation together with directed band for the leading-out terminal of coil.
The coil-inserting method of the stator winding of the above-mentioned synchronous machine that is used for nuclear-electric power supply wherein, when carrying out the step of sealing groove mouth, is thrown slot wedge two ends in each magnetic groove into and is stretched out the length of stator core end face and differ less than 2mm.
The coil-inserting method of the stator winding of the above-mentioned synchronous machine that is used for nuclear-electric power supply, wherein, when carrying out the step of rule preparation, the two ends that are placed on the slot liner in each magnetic groove are stretched out stator core end face length and are more or less the same in 3mm, and the two ends of adjacent slot liner are stretched out stator core end face length and are more or less the same in 2mm; Distance to the stator core end face around the described end hoop is more or less the same in 5mm, is more or less the same in 10mm to the seam plan range.
The technical scheme of the coil-inserting method of the stator winding of the synchronous machine that is used for nuclear-electric power supply of the present invention can be saved a large amount of coils and insulating material, and the manufacturing cost of motor is reduced significantly.And can make the structure of stator compact more, be beneficial to reducing of motor overall dimensions.Simultaneously, the failure rate of motor operation is significantly reduced, and can prolong the useful life of motor, improve the operating efficiency of motor.Advantages such as this method also has simple, and is easy to operate, and effect is remarkable.
Description of drawings
Fig. 1 a, Fig. 1 b and Fig. 1 c are the coil-inserting method of the stator winding of the synchronous machine that is used for nuclear-electric power supply of the present invention embeds coil in same magnetic groove precedence 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:
The coil-inserting method of the stator winding of a kind of synchronous machine that is used for nuclear-electric power supply of the present invention may further comprise the steps:
The step that rule is prepared, comprise the preparation Material Used, instrument and other parts, check pitch on the drawing, should not leave the iron filings foreign material in the inspection grooves such as lead-in wire direction, outstanding punching and wedge angle burr, and blow off stator core and coil is discerned and put in order by product requirement with compressed air, and check that coil has and do not damage phenomenon, standing groove heelpiece bar 10 and slot liner successively in the magnetic groove of stator core then, the two ends that are placed on the slot liner in each magnetic groove are stretched out stator core end face length and are more or less the same in 3mm, the two ends of adjacent slot liner are stretched out stator core end face length and are more or less the same in 2mm, adopt at last and special-purpose to hang the two ends that the bander is contained in stator winding and fix an end hoop respectively, align the center, can try to put several coils in case of necessity checks, the interior round concentricity that makes end hoop and stator core is less than 2mm, distance to the stator core end face around the end hoop is more or less the same in 5mm, is more or less the same in 10mm to the seam plan range;
Set the step of coil, at first with following layer line limit three coil parts 1 side by side of every circle coil of first group of coil, 2,3 are shattered into and are arranged above and below, successively three coil parts are drawn in downwards in the magnetic groove from the left end notch, push the coil part that is introduced in the magnetic groove to right side, to reset three coil parts smooth side by side, make three coil parts on following layer line limit of every circle coil simultaneously entirely docile in the magnetic groove bottom, follow upper ends interlayer filler strip 20 on following layer line limit, with striking plate layer line limit and interlayer filler strip 20 strike tight in the lump and be convinced down, simultaneously with last layer line limit three coil parts 4 side by side of every circle coil of first group of coil, 5,6 are shattered into and are arranged above and below and are embedded in the corresponding pitch groove temporarily, and with the interim colligation in two ends on the last layer line limit of every circle coil of this first group of coil on described end hoop, again last layer line limit three coil parts side by side of every circle coil of second group of coil are shattered into the top on following layer line limit that is arranged above and below and forever is embedded in every circle coil of first group of coil accordingly, make three coil parts on last layer line limit of every circle coil of second group of coil simultaneously entirely docile in interlayer filler strip (seeing Fig. 1 a to Fig. 1 c), the rest may be inferred, set every group of coil one by one, when meet in the last layer line limit of every circle coil of the following layer line limit of every circle coil that is embedded into last group coil and first group of coil, earlier support is stood up and removes the interim binding wire that two ends and the end on last layer line limit of every circle coil of first group of coil binds round, with bias tape three coil parts on the last layer line limit of every circle coil of first group of coil are sling in groove one by one again, height of lift is advisable not influence rule, too high can the damage insulated, then with filler strip between the following layer line limit embedding of every circle coil of last group coil and leveling and placed layer, put down one by one at last first group of coil every circle coil last layer line limit three coil parts and flatten; The straight line portion that need guarantee coil when setting coil must be in the middle position of magnetic groove, and the straight line portion both ends stretch out evenly unshakable in one's determinationly, is coated with one deck Chinese wax on the surface of coil in case of necessity and makes it lubricated;
The step of sealing groove mouth, earlier with scissors cut off stretch out the unnecessary slot liner of notch and with strike plate with the coil in the magnetic groove strike tight after, the slot liner that notch is stayed collapses and is pressed in the magnetic groove, puts into filler strip under the wedge again, throws slot wedge into after beating out filler strip; Slot wedge needs to manufacture according to the length of stator core, the gradient of magnetic groove, to guarantee the contact area of slot wedge and notch and coil; When throwing slot wedge into, can strike plate by a human coil is struck tightly, another people strikes slot wedge, can be knocked in from the two ends of stator core respectively by two people when two slot wedges are arranged; Check that slot wedge must not strike hair, unfilled corner, fracture layering after throwing slot wedge into, must not exceed the inner headed face of stator core, the length that the stator core end face is stretched out at the slot wedge two ends differs less than 2mm, and is motionless with hand push;
The step of end banding is carried out end coil and the colligation that end binds round earlier, carries out the colligation of end coil and end coil again; To carry out the end shaping earlier before the end banding, again at the oblique line of the leading-out terminal of coil partly with the suitable shape felt pan of ring flat-plate outsourcing between end coil, be with crosswise colligation twice with directed then, the non-leading-out terminal of coil with the glass fiber becket bridle around the ground colligation together, requirement accomplishes neatly, closely, rounding all around, joint should be at the back side of coil;
The wiring step comprises being connected of wiring between every circle coil, coil lead and ring in parallel and being connected of ring in parallel and busbar; Butt joint silver soldering is adopted in wiring between every circle coil, coil lead and ring in parallel be connected and ring in parallel overlaps silver soldering with the employing that is connected of busbar; Connecting the branch levels between coil carries out, after the lead-in wire butt joint silver soldering of three coil parts of lower floor is finished, lead-in wire to three coil parts in upper strata docks silver soldering again, bag insulation after wiring is finished, tightness is suitable during the bag insulation, note joining good mutually with original insulation and wrapping root, accomplish rounding off, attractive in appearance.
After finishing coil and setting, check the winding overhang shape, slot wedge length is neat comprehensively, and end winding nose height distance is more or less the same in 5mm, and each is mutually correct, and as finding that alkali-free glass wool has the damage phenomenon, available same material bandages.
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 (4)
1. the coil-inserting method of the stator winding of a synchronous machine that is used for nuclear-electric power supply is characterized in that described coil-inserting method may further comprise the steps:
The step that rule is prepared, standing groove heelpiece bar and slot liner successively in the magnetic groove of stator core earlier adopt and special-purpose hang the two ends that the bander is contained in stator winding and fix an end hoop respectively, and the interior round concentricity that makes end hoop and stator core is less than 2mm;
Set the step of coil, at first following layer line limit three coil parts side by side of every circle coil of first group of coil are shattered into and are arranged above and below, successively three coil parts are drawn in downwards in the magnetic groove from the left end notch, push the coil part that is introduced in the magnetic groove to right side, to reset three coil parts smooth side by side, make three coil parts on following layer line limit of every circle coil simultaneously entirely docile in the magnetic groove bottom, follow upper ends interlayer filler strip on following layer line limit, with striking plate layer line limit and interlayer filler strip strike tight in the lump and be convinced down, simultaneously last layer line limit three coil parts side by side of every circle coil of first group of coil are shattered into and are arranged above and below and are embedded in the corresponding pitch groove temporarily, and with the interim colligation in two ends on the last layer line limit of every circle coil of this first group of coil on described end hoop, again last layer line limit three coil parts side by side of every circle coil of second group of coil are shattered into the top on following layer line limit that is arranged above and below and forever is embedded in every circle coil of first group of coil accordingly, make three coil parts on last layer line limit of every circle coil of second group of coil simultaneously entirely docile in the interlayer filler strip, the rest may be inferred, set every group of coil one by one, when meet in the last layer line limit of every circle coil of the following layer line limit of every circle coil that is embedded into last group coil and first group of coil, earlier support is stood up and removes the interim binding wire that two ends and the end on last layer line limit of every circle coil of first group of coil binds round, with bias tape three coil parts on the last layer line limit of every circle coil of first group of coil are sling in groove one by one again, then with filler strip between the following layer line limit embedding of every circle coil of last group coil and leveling and placed layer, put down one by one at last first group of coil every circle coil last layer line limit three coil parts and flatten;
The step of sealing groove mouth, earlier with scissors cut off stretch out the unnecessary slot liner of notch and with strike plate with the coil in the magnetic groove strike tight after, the slot liner that notch is stayed collapses and is pressed in the magnetic groove, puts into filler strip under the wedge again, throws slot wedge into after beating out filler strip;
The step of end banding is carried out end coil and the colligation that end binds round earlier, carries out the colligation of end coil and end coil again;
The wiring step comprises being connected of wiring between every circle coil, coil lead and ring in parallel and being connected of ring in parallel and busbar; Butt joint silver soldering is adopted in wiring between every circle coil, coil lead and ring in parallel be connected and ring in parallel overlaps silver soldering with the employing that is connected of busbar.
2. the coil-inserting method of the stator winding of the synchronous machine that is used for nuclear-electric power supply according to claim 1 is characterized in that, will carry out the end shaping earlier before the described end banding step.
3. the coil-inserting method of the stator winding of the synchronous machine that is used for nuclear-electric power supply according to claim 1, it is characterized in that, when carrying out the step of end banding, with crosswise colligation twice, the non-leading-out terminal of coil with the glass fiber becket bridle around the ground colligation together with directed band for the leading-out terminal of coil.
4. the coil-inserting method of the stator winding of the synchronous machine that is used for nuclear-electric power supply according to claim 1 is characterized in that, when carrying out the step of sealing groove mouth, throws slot wedge two ends in each magnetic groove into and stretches out the length of stator core end face and differ less than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210113745 CN102611260B (en) | 2012-04-18 | 2012-04-18 | Method for inserting line in stator winding of synchronous motor of nuclear power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210113745 CN102611260B (en) | 2012-04-18 | 2012-04-18 | Method for inserting line in stator winding of synchronous motor of nuclear power supply |
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| Publication Number | Publication Date |
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| CN102611260A CN102611260A (en) | 2012-07-25 |
| CN102611260B true CN102611260B (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210113745 Active CN102611260B (en) | 2012-04-18 | 2012-04-18 | Method for inserting line in stator winding of synchronous motor of nuclear power supply |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3098045B1 (en) * | 2019-06-27 | 2021-10-15 | Valeo Equip Electr Moteur | Electric winding for a rotating electric machine |
| CN112165228B (en) * | 2020-09-17 | 2022-08-09 | 西安中车永电捷力风能有限公司 | Stator assembly process of direct-drive wind driven generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295617A2 (en) * | 1987-06-17 | 1988-12-21 | Magnetek, Inc. | Magnetic top wedge |
| 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 |
| CN101860096A (en) * | 2010-05-17 | 2010-10-13 | 无锡市中达电机有限公司 | Stator core with winding for medium-sized low-voltage variable-frequency motor |
| CN102005872A (en) * | 2010-12-15 | 2011-04-06 | 南车株洲电机有限公司 | Slot turning process for stator coil and auxiliary tooling device thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5098611B2 (en) * | 2007-12-07 | 2012-12-12 | 三菱電機株式会社 | Coil / wedge insertion device and coil / wedge insertion method. |
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2012
- 2012-04-18 CN CN 201210113745 patent/CN102611260B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295617A2 (en) * | 1987-06-17 | 1988-12-21 | Magnetek, Inc. | Magnetic top wedge |
| 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 |
| CN101860096A (en) * | 2010-05-17 | 2010-10-13 | 无锡市中达电机有限公司 | Stator core with winding for medium-sized low-voltage variable-frequency motor |
| CN102005872A (en) * | 2010-12-15 | 2011-04-06 | 南车株洲电机有限公司 | Slot turning process for stator coil and auxiliary tooling device thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2009-142094A 2009.06.25 |
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