CN102710073B - Manufacturing process of ring-type stator coil - Google Patents
Manufacturing process of ring-type stator coil Download PDFInfo
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- CN102710073B CN102710073B CN 201210181377 CN201210181377A CN102710073B CN 102710073 B CN102710073 B CN 102710073B CN 201210181377 CN201210181377 CN 201210181377 CN 201210181377 A CN201210181377 A CN 201210181377A CN 102710073 B CN102710073 B CN 102710073B
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Abstract
The invention discloses a manufacturing process of a ring-type stator coil, which comprises the steps as follows: coiling coil blank, inter-turn gelatination of linear part, coil expanding and coil shape-recovering, wherein the step of coiling coil blank is that a non-self-adhesion wire is coiled into a fusiform or trapezoidal coil blank; and the step of inter-turn gelatination of the linear part comprises the following steps: gelatination preparation, cold state finishing, heat temperature raising, thermal state finishing, exerting total pressure and cooling. The manufacturing process of the ring-type stator coil adopts the previous gelatination and posterior shaping. Since the coil is still in a flat trapezoidal or fusiform state during the gelatination of the linear part, and the end parts of the coil do not shape and is in a soft state, the gelatination of multiple coils can be executed at one time in a gelatination device, therefore, the speed of the inter-turn gelatination is accelerated, man hour is saved, and besides, labor intensity is lowered.
Description
Technical field
The present invention relates to the manufacture of the stator coil of motor, be specifically related to a kind of manufacturing process of stator coil.
Background technology
Existing stator coil manufacturing process is: coiling fusiformis or trapezoidal coil blank process, wrapping buffer zone operation, go the lead wire insulation operation, turn-to-turn gel operation, wrapping coil main insulation operation and the anti-corona operation of the type that rises operation, complex operation, straight line portion.
Above-mentioned manufacturing process is the turn-to-turn gel operation of carrying out again straight line portion after the type that rises, complex operation.When carrying out the turn-to-turn gel operation of straight line portion 11, due to overhang 12 (see figure 1) that has been shaped, the larger volume of gel equipment accounts for, can only carry out the turn-to-turn gel by single coil, therefore need to be equipped with more gel equipment, and want the huge foundary weight frock of production quantity, basically be that each product will be equipped with a set of foundary weight frock, not only the manufacturing cycle is long, also to expend a large amount of auxiliary material (as white cotton tape etc.) and wrapping thereof, remove man-hour, manufacturing cost is increased greatly, and it is also very low to manufacture efficiency.
Summary of the invention
The manufacturing process that the purpose of this invention is to provide a kind of stator coil, it can shorten the coil manufacturing cycle, reduces labor intensity, and saves man-hour, and can guarantee the turn-to-turn gel quality of straight line portion, reduces the use of auxiliary material.
The technical scheme that realizes above-mentioned purpose is: a kind of manufacturing process of stator coil, and operation, the turn-to-turn gel operation of straight line portion, the coil that comprises the coiling base the rise operation of type and the operation of coil complex, wherein,
The operation of described coiling base is to adopt the coil base of the wire coiling fusiformis that does not contain adhesive or trapezoidal coil base;
The turn-to-turn gel operation of described straight line portion comprises:
A. prepare the step of gel, between two row's wires of first two straight line portioies at a described coil base or side of two straight line portioies is encased inside gel paper, respectively by two straight line portion wrapping teflin tapes of described coil base, then the coil base is put into to gel equipment again;
B. the step that cold conditions arranges, to two straight line portioies of described coil base 11.8Mpa that laterally pressurizes, longitudinal pressing 0.5 ± 0.5Mpa;
C. the step of heat temperature raising, lead to Steam Heating 10～20 minutes to described gel equipment, makes the temperature in gel equipment be raised to 140 ℃～160 ℃, is incubated 30 minutes;
D. the step of hot arrangement, insulation finishes, to two straight line portioies of described coil base laterally pressurization from 0 to 2.5 ± 0.5Mpa, longitudinal pressing from 11.8Mpa to 0 again to 2.5 ± 0.5Mpa;
E. the step that adds total head, first laterally be pressurized to 11.8Mpa to two straight line portioies of described coil base, and longitudinal pressing is to 11.8Mpa, then steam off;
F. cooling step to the logical water quench of described gel equipment, is got after described coil base is cooled to normal temperature from gel equipment.
The manufacturing process of above-mentioned stator coil, wherein, the described wire that does not contain adhesive is Mica tape copper strap wire or double glass fiber package film copper lenticular wire.
The manufacturing process of above-mentioned stator coil, wherein, described manufacturing process also is included in the operation of the lead-in wire shaping of carrying out successively after described coil complex operation, the operation of wrapping main insulation and the operation of anti-corona processing.
The manufacturing process of above-mentioned stator coil, wherein, described gel equipment comprises gelatination furnace, the transverse pressure device, the longitudinal pressure device, the axial central authorities of described gelatination furnace are provided with a middle heating plate, the both sides of described gelatination furnace are respectively equipped with a side heating plate, also between described side heating plate and described middle heating plate, spacing filler strip is set in described gelatination furnace, the outside that described transverse pressure device is located at described gelatination furnace also is connected with a described side heating plate through a sidewall of gelatination furnace, described longitudinal pressure device is located at outside the upper end of described gelatination furnace and the pressure head that is positioned at above described spacing filler strip through the lid and of gelatination furnace is connected,
When carrying out the step of described preparation gel, described coil base is when putting into described gel equipment, and two straight line portioies lay respectively at the both sides of described middle heating plate, and described spacing filler strip is pressed in the upper end of two straight line portioies of coil base.
The manufacturing process of above-mentioned stator coil, wherein, the both sides of described middle heating plate and the inboard of two side heating plates are respectively equipped with corrosion resistant plate.
The manufacturing process of stator coil of the present invention, adopt the technique of first gel, postforming, because coil when carrying out the gel operation of straight line portion also is in flat trapezoidal or fusiformis state, end winding is unshaped and in soft state also, can in gel equipment, once carry out the turn-to-turn gel of many coils, therefore greatly improved the progress of turn-to-turn gel operation, can save man-hour, can reduce labor intensity again.Coil straight line portion before forming process has cured and is integrated in addition, strengthened the mechanical strength of coil, therefore be not easy to cause the damage of insulation when forming operation, thereby optimized technique, improve the coil workmanship, also reduced the use of auxiliary material simultaneously.
The accompanying drawing explanation
The structural representation that Fig. 1 is conventional stator coil;
The structural representation of the shuttle coil base of coiling in the manufacturing process that Fig. 2 is stator coil of the present invention;
The structural representation of the trapezoidal coil base of coiling in the manufacturing process that Fig. 3 is stator coil of the present invention;
The structural representation of the gel equipment used in the manufacturing process that Fig. 4 is stator coil of the present invention.
Embodiment
In order to make those skilled in the art can understand better technical scheme of the present invention, below in conjunction with accompanying drawing, its embodiment is described in detail:
The manufacturing process of a kind of stator coil of the present invention, operation, the turn-to-turn gel operation of straight line portion, the coil that comprises the coiling base the rise operation of type, the operation of coil complex, the operation of lead-in wire shaping, the operation of wrapping main insulation and the operation of anti-corona processing, wherein
The operation of coiling base is to adopt the wire coiling shuttle coil base 1(that does not contain adhesive to see Fig. 2 or trapezoidal coil base 1 ' (see figure 3), can cement gel equipment with the forward and backward end 12 that prevents coil base when carrying out the turn-to-turn gel operation of straight line portion 11, make coil can cause the wire insulation damage when rising by type and complex; This is not Mica tape copper strap wire (4M50-F) or double glass fiber package film copper lenticular wire (2SY40-5F) etc. containing the wire of adhesive;
The turn-to-turn gel operation of straight line portion comprises:
A. prepare the step of gel, first in a side of (multiple conducting wires around time) between two row's wires of two straight line portioies of coil base or two straight line portioies, (solid conductor around time) is encased inside gel paper, the gel paper washer is in the centre of straight line portion and the short 20mm of length L of the straight line portion 11 of Length Ratio coil base, again respectively by two straight line portioies of coil base, 11 wrapping teflin tapes, two straight line portioies 11 of coil are not pasted mutually with frock after gel, also can protect the insulation of winding wire, then the coil base be put into to gel equipment;
Refer to Fig. 4, gel equipment comprises gelatination furnace 20, transverse pressure device 21, longitudinal pressure device 22, wherein, the axial central authorities of gelatination furnace 20 are provided with a middle heating plate 23, the both sides of gelatination furnace 20 are respectively equipped with a side heating plate 24, and the inboard of the both sides of middle heating plate 23 and two side heating plates 24 is respectively equipped with corrosion resistant plate 230,240; Spacing filler strip 25 also is set in gelatination furnace 20 between side heating plate 24 and middle heating plate 23, transverse pressure device 21 is located at the outside of gelatination furnace 20 and is connected with a side heating plate 24 through a sidewall of gelatination furnace 20, and longitudinal pressure device 22 is located at the pressure head 220 that the lid and that also passes gelatination furnace 20 outside the upper end of gelatination furnace 20 is positioned at spacing filler strip 25 tops and is connected; A gel equipment can carry out the gel of many coil bases simultaneously.The coil base is when putting into gelatination furnace 20, and two straight line portioies 11 lay respectively at the both sides of middle heating plate 23, and spacing filler strip 25 is pressed in the upper end of two straight line portioies 11; When having many coil bases to carry out gel in gelatination furnace 20 simultaneously, many coil bases are that the mode stacked is up and down put into gelatination furnace 20, spacing filler strip 25 pads are at every two adjacent coil base 1(1 ') between, to be limited in the depth of section size of gel process cathetus part 11;
B. the step that cold conditions arranges, start the horizontal pressurization 11.8Mpa of two straight line portioies 11 of 21 pairs of coil bases of transverse pressure device, and start two straight line portioies, the 11 longitudinal pressing 0.5 ± 0.5Mpa of 22 pairs of coil bases of longitudinal pressure device simultaneously;
C. the step of heat temperature raising, lead to Steam Heating 10～20 minutes to the middle heating plate 23 in gel equipment and side heating plate 24, makes the temperature in gel equipment be raised to 140 ℃～160 ℃, is incubated 30 minutes;
D. the step of hot arrangement, after insulation finishes, two straight line portioies restarting 21 pairs of coil bases of transverse pressure device laterally pressurization from 0 to 2.5 ± 0.5Mpa, and two straight line portion 11 longitudinal pressings that simultaneously start 22 pairs of coil bases of longitudinal pressure device from 11.8Mpa to 0 again to 2.5 ± 0.5Mpa;
E. the step that adds total head, after hot arrangement, two straight line portioies 11 that first start 21 pairs of coil bases of transverse pressure device laterally are pressurized to 11.8Mpa, and two straight line portion 11 longitudinal pressings that simultaneously start 22 pairs of coil bases of longitudinal pressure device are to 11.8Mpa, then steam off;
F. cooling step to middle heating plate 23 and two logical water quench of side heating plate 24 of gel equipment, takes out after the coil base is cooled to normal temperature from gel equipment, completes gel.
The rise operation of type of coil, put into the expanding machine type that risen by the shuttle coil base 1 after gel or trapezoidal coil base 1 ';
The operation of coil complex, four end bent angles of the coil after the type that first will rise are regulated smooth, then put into shaping mould and carry out complex;
The operation of anti-corona processing holds corona-prevention belt outside the main insulation of end winding again.
Those of ordinary skill in the art will be appreciated that, above embodiment is only for the present invention is described, and not be used as limitation of the invention, as long as in connotation scope of the present invention, to variation, the modification of the above embodiment, all will drop in claims scope of the present invention.
Claims (5)
1. the manufacturing process of a stator coil, is characterized in that, described manufacturing process comprises operation, the turn-to-turn gel operation of straight line portion, the coil of coiling base the rise operation of type and the operation of coil complex,
The operation of described coiling base is to adopt the coil base of the wire coiling fusiformis that does not contain adhesive or trapezoidal coil base;
The turn-to-turn gel operation of described straight line portion comprises:
A. prepare the step of gel, between two row's wires of first two straight line portioies at a described coil base or side of two straight line portioies is encased inside gel paper, respectively by two straight line portion wrapping teflin tapes of described coil base, then the coil base is put into to gel equipment again;
B. the step that cold conditions arranges, to two straight line portioies of described coil base 11.8Mpa that laterally pressurizes, longitudinal pressing 0.5 ± 0.5Mpa;
C. the step of heat temperature raising, lead to Steam Heating 10～20 minutes to described gel equipment, makes the temperature in gel equipment be raised to 140 ℃～160 ℃, is incubated 30 minutes;
D. the step of hot arrangement, insulation finishes, to two straight line portioies of described coil base laterally pressurization from 0 to 2.5 ± 0.5Mpa, longitudinal pressing from 11.8Mpa to 0 again to 2.5 ± 0.5Mpa;
E. the step that adds total head, first laterally be pressurized to 11.8Mpa to two straight line portioies of described coil base, and longitudinal pressing is to 11.8Mpa, then steam off;
F. cooling step to the logical water quench of described gel equipment, takes out after described coil base is cooled to normal temperature from gel equipment.
2. the manufacturing process of stator coil according to claim 1, is characterized in that, the described wire that does not contain adhesive is Mica tape copper strap wire or double glass fiber package film copper lenticular wire.
3. the manufacturing process of stator coil according to claim 1, is characterized in that, described manufacturing process also is included in the operation of the lead-in wire shaping of carrying out successively after described coil complex operation, the operation of wrapping main insulation and the operation of anti-corona processing.
4. the manufacturing process of stator coil according to claim 1, it is characterized in that, described gel equipment comprises gelatination furnace, the transverse pressure device, the longitudinal pressure device, the axial central authorities of described gelatination furnace are provided with a middle heating plate, the both sides of described gelatination furnace are respectively equipped with a side heating plate, also between described side heating plate and described middle heating plate, spacing filler strip is set in described gelatination furnace, the outside that described transverse pressure device is located at described gelatination furnace also is connected with a described side heating plate through a sidewall of gelatination furnace, described longitudinal pressure device is located at outside the upper end of described gelatination furnace and the pressure head that is positioned at above described spacing filler strip through the lid and of gelatination furnace is connected,
When carrying out the step of described preparation gel, described coil base is when putting into described gel equipment, and two straight line portioies lay respectively at the both sides of described middle heating plate, and described spacing filler strip is pressed in the upper end of two straight line portioies of coil base.
5. the manufacturing process of stator coil according to claim 4, is characterized in that, the both sides of described middle heating plate and the inboard of two side heating plates are respectively equipped with corrosion resistant plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210181377 CN102710073B (en) | 2012-06-05 | 2012-06-05 | Manufacturing process of ring-type stator coil |
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| CN 201210181377 CN102710073B (en) | 2012-06-05 | 2012-06-05 | Manufacturing process of ring-type stator coil |
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| CN102710073B true CN102710073B (en) | 2013-12-18 |
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| CN104362819B (en) * | 2014-11-04 | 2019-01-04 | 天津市天发重型水电设备制造有限公司 | A kind of coil type winding turn-to-turn insulation processing technology |
| CN107171517B (en) * | 2017-06-02 | 2019-04-19 | 中科力函(深圳)热声技术有限公司 | Coil ageing device and method |
| CN107588868B (en) * | 2017-09-11 | 2019-09-10 | 哈尔滨电机厂有限责任公司 | Turn-to-turn pressure detection method during the centripetal pole coil of hydrogenerator is hot-forming |
| CN108494182B (en) * | 2018-04-08 | 2024-05-14 | 长沙千之然信息科技有限公司 | Forming device and forming method of saddle-shaped coil |
| CN110224556B (en) * | 2019-05-28 | 2024-03-29 | 威伊艾姆电机(无锡)有限公司 | Method for adjusting universal winding gelling machine by adopting universal die |
| CN113489262A (en) * | 2021-07-20 | 2021-10-08 | 上海电气集团上海电机厂有限公司 | Stator coil manufacturing process |
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| JP4261089B2 (en) * | 2001-08-31 | 2009-04-30 | 高周波熱錬株式会社 | Manufacturing method of high strength and high fatigue resistance coil spring |
| CN101154500A (en) * | 2006-09-26 | 2008-04-02 | 上海电气集团上海电机厂有限公司 | Manufacturing method for shuttle shaped coil |
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