CN103394817A - Method for welding to merge heads of wound rotors - Google Patents
Method for welding to merge heads of wound rotors Download PDFInfo
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- CN103394817A CN103394817A CN2013103222004A CN201310322200A CN103394817A CN 103394817 A CN103394817 A CN 103394817A CN 2013103222004 A CN2013103222004 A CN 2013103222004A CN 201310322200 A CN201310322200 A CN 201310322200A CN 103394817 A CN103394817 A CN 103394817A
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Abstract
The invention relates to a method for welding to merge heads of wound rotors. The method is characterized by including the steps of 1), covering a head merging sheath on the tips of two motor rotor coils and embedding a head merging wedge between the two motor rotor coils; 2), wrapping the position exposed out of the head merging sheath of each motor rotor coil with a soaked asbestos rope; 3), wrapping welding tongs with one to two layers of glass tape, coating insulating vanish on the glass tape, and using the welding tongs to clamp the head merging sheath; 4), adopting an intermediate frequency welder to weld the head merging sheath and allowing the same to be cooled at the same time; 5), before the head merging sheath turns red thoroughly, using a silver solder to drop once on the gap between the head merging sheath and the motor rotor coils; 6), after the head merging sheath turns red thoroughly, coating welding flux on the end faces of the head merging sheath and the motor rotor coils; 7), after the merged heads are welded, removing an insulation protection cover. The method for welding is short in welding time, high in work efficiency, low in insulation damage, thorough in welding, and good in technology reliability.
Description
Technical field
The present invention relates to the welding method of a kind of wound rotor head, belong to the motor manufacturing technology field.
Background technology
Winding rotor motor is widely used in industrial and agricultural production with starting and the speed adjusting performance of its excellence.Simultaneously, than cage-type rotor motor complexity, the maintenance more complicated, therefore proposed requirements at the higher level to manufacturing process and the workmanship of motor due to its structure.Except common spark is brushed the short-circuiting means failure problems with carrying, because rotor coil the unreliable problem that causes of headgear welding account for larger specific gravity.
Same throat thickness, the intermediate frequency welding is less than the welding current that traditional power frequency is welded, the direct current welding is required, and temperature rises faster, heats more even.The current waveform of intermediate-frequency welding machine is almost continuous, and manufacturability is stable, and the current waveform of power frequency is evident as intermittently, and the current density of output is large so medium frequency welding picks, and heat is concentrated, and energy is high, and can shorten 15% left and right weld interval.Up to 1000Hz, the secondary current waveform is straight due to frequency, the natural increasing of welding primary current, so the solder joint surface quality is good.In general, rotor and head part totally three layers of thickness directions, general thickness is larger, traditional welding is not easy through welding, and the women's head-ornaments inequality of being heated, and flows into the high temperature place in a large number after the silver solder fusing, and enters into the coil insulation part, the low temperature place is easily sealing-off, rosin joint.Cooling rear outward appearance is uneven, has a large amount of overlaps and welding slag, and the scolder waste is serious.Secondly, though the protection of immersion asbestos cord is arranged, coil insulation is destroyed still serious, to later stage bag joint insulation, increases difficulty.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the welding method of a kind of wound rotor head is provided, weld interval is short, high efficiency, and insulation breakdown is little, and welding is thorough, and reliability of technology is good.
According to technical scheme provided by the invention, the welding method of a kind of wound rotor head, feature is to comprise following processing step:
(1) after motor-spin-coil completes setting-in, bending and obtains rotor, give on the termination point casing of motor-spin-coil and headgear, and embed and a wedge in the middle of two electronics rotor coils, the tight and headgear of embedding; Then by rotor horizontal positioned on welding bench;
(2) motor-spin-coil be exposed to and headgear outside position superscribe the asbestos cord of immersion, using insulating protective layer as motor-spin-coil;
(3) on soldering turret, wrap up one to the layer glass silk ribbon, and smear one deck insulating varnish; Then soldering turret is clamped and headgear;
(4) adopt intermediate-frequency welding machine to weld, welding output current is 200 ~ 480A, and in the time of welding, the cooling water channel of unlatching intermediate-frequency welding machine carries out coolingly, and cooling water temperature is 0～30 ℃;
(5), before also headgear is not popular in fully, adopt the hole between silver solder general headgear and motor-spin-coil to smear one time;
(6) and after headgear is popular in, scolder is evenly entirely spread upon and headgear and motor-spin-coil between hole and the surrounding of headgear and and the end face of headgear and motor-spin-coil; Each and head are welded in 2～3 minutes and complete;
(7) after what a and head of every weldering, trickle is cooling; After the welding of all and head completes, remove insulating protective layer.
Compared with the prior art the present invention has the following advantages: welding method of the present invention is short weld interval, high efficiency, and insulation breakdown is little, and welding is thorough, and reliability of technology is good; Improve greatly the operation stability of motor, reduced fault rate and frequency of maintenance, can be widely used in the welding of big-and-middle-sized winding rotor motor head part.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of welding process of the present invention.
Fig. 2 is the left view of Fig. 1.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
Embodiment mono-: the welding method of a kind of wound rotor head comprises following processing step:
(1) as shown in Figure 2, after motor-spin-coil 4 completes setting-in, bending and obtains rotor, give on the termination point casing of motor-spin-coil 4 and headgear 1, and embed and a wedge 5 in the middle of two electronics rotor coils 4, the tight and headgear 1 of embedding; Then rotor is winched on welding bench to horizontal positioned;
(2) as shown in Figure 1, motor-spin-coil 4 be exposed to and headgear 1 outside position superscribe the asbestos cord 2 of immersion, using insulating protective layer 3 as motor-spin-coil 4; For the skilled worker, because required weld interval is short, also can not wrap asbestos cord, to save man-hour;
(3) on soldering turret 6, wrap up one to layer glass silk ribbon 7, and smear one deck insulating varnish; Then soldering turret 6 is clamped and headgear 1;
(4) adopt intermediate-frequency welding machine to weld, welding output current is 200A, and in the time of welding, the cooling water channel of unlatching intermediate-frequency welding machine carries out coolingly, and cooling water temperature is 10 ℃;
(5) and before headgear is not popular in fully, adopting the trade mark is that the BCu80AGP(silver content is 15%) silver solder will and headgear 1 and motor-spin-coil 4 between hole smear one time; Like this and after headgear is popular in, the capillary principle due to heat after rising, hole can suck scolder rapidly, effect is fine;
(6) and after headgear is popular in, scolder is evenly entirely spread upon and headgear 1 and motor-spin-coil 4 between hole and the surrounding of headgear 1 and and the end face of headgear 1 and motor-spin-coil 4; It is that the BCu80AGP(silver content is 15% that scolder adopt to adopt the trade mark) silver solder, each and head are welded in 2 minutes and complete; Owing to being heated evenly, scolder can flow to rapidly each position, and the operator is unlikely in a rush;
(7) after what a and head of every weldering, trickle is cooling; After the welding of all and head completes, remove insulating protective layer 3.
Embodiment bis-: the welding method of a kind of wound rotor head comprises following processing step:
(1) as shown in Figure 2, after motor-spin-coil 4 completes setting-in, bending and obtains rotor, give on the termination point casing of motor-spin-coil 4 and headgear 1, and embed and a wedge 5 in the middle of two electronics rotor coils 4, the tight and headgear 1 of embedding; Then rotor is winched on welding bench to horizontal positioned;
(2) as shown in Figure 1, motor-spin-coil 4 be exposed to and headgear 1 outside position superscribe the asbestos cord 2 of immersion, using insulating protective layer 3 as motor-spin-coil 4; For the skilled worker, because required weld interval is short, also can not wrap asbestos cord, to save man-hour;
(3) on soldering turret 6, wrap up one to layer glass silk ribbon 7, and smear one deck insulating varnish; Then soldering turret 6 is clamped and headgear 1;
(4) adopt intermediate-frequency welding machine to weld, welding output current is 480A, and in the time of welding, the cooling water channel of unlatching intermediate-frequency welding machine carries out coolingly, and cooling water temperature is 30 ℃;
(5) and before headgear is not popular in fully, adopting the trade mark is that the BCu80AGP(silver content is 15%) silver solder will and headgear 1 and motor-spin-coil 4 between hole smear one time; Like this and after headgear is popular in, the capillary principle due to heat after rising, hole can suck scolder rapidly, effect is fine;
(6) and after headgear is popular in, scolder is evenly entirely spread upon and headgear 1 and motor-spin-coil 4 between hole and the surrounding of headgear 1 and and the end face of headgear 1 and motor-spin-coil 4; It is that the BCu80AGP(silver content is 15% that scolder adopt to adopt the trade mark) silver solder, each and head are welded in 3 minutes and complete; Owing to being heated evenly, scolder can flow to rapidly each position, and the operator is unlikely in a rush;
(7) after what a and head of every weldering, trickle is cooling; After the welding of all and head completes, remove insulating protective layer 3.
Embodiment tri-: the welding method of a kind of wound rotor head comprises following processing step:
(1) as shown in Figure 2, after motor-spin-coil 4 completes setting-in, bending and obtains rotor, give on the termination point casing of motor-spin-coil 4 and headgear 1, and embed and a wedge 5 in the middle of two electronics rotor coils 4, the tight and headgear 1 of embedding; Then rotor is winched on welding bench to horizontal positioned;
(2) as shown in Figure 1, motor-spin-coil 4 be exposed to and headgear 1 outside position superscribe the asbestos cord 2 of immersion, using insulating protective layer 3 as motor-spin-coil 4; For the skilled worker, because required weld interval is short, also can not wrap asbestos cord, to save man-hour;
(3) on soldering turret 6, wrap up one to layer glass silk ribbon 7, and smear one deck insulating varnish; Then soldering turret 6 is clamped and headgear 1;
(4) adopt intermediate-frequency welding machine to weld, welding output current is 300A, and in the time of welding, the cooling water channel of unlatching intermediate-frequency welding machine carries out coolingly, and cooling water temperature is 20 ℃;
(5) and before headgear is not popular in fully, adopting the trade mark is that the BCu80AGP(silver content is 15%) silver solder will and headgear 1 and motor-spin-coil 4 between hole smear one time; Like this and after headgear is popular in, the capillary principle due to heat after rising, hole can suck scolder rapidly, effect is fine;
(6) and after headgear is popular in, scolder is evenly entirely spread upon and headgear 1 and motor-spin-coil 4 between hole and the surrounding of headgear 1 and and the end face of headgear 1 and motor-spin-coil 4; It is that the BCu80AGP(silver content is 15% that scolder adopt to adopt the trade mark) silver solder, each and head are welded in 2 minutes and complete; Owing to being heated evenly, scolder can flow to rapidly each position, and the operator is unlikely in a rush;
(7) after what a and head of every weldering, trickle is cooling; After the welding of all and head completes, remove insulating protective layer 3.
Claims (1)
1. the welding method of a wound rotor head, is characterized in that, comprises following processing step:
(1) after motor-spin-coil (4) completes setting-in, bending and obtains rotor, give on the termination point casing of motor-spin-coil (4) and headgear (1), and embed and a wedge (5) in the middle of two electronics rotor coils (4), the tight and headgear (1) of embedding; Then by rotor horizontal positioned on welding bench;
(2) motor-spin-coil (4) be exposed to and headgear (1) outside position superscribe the asbestos cord (2) of immersion, using insulating protective layer (3) as motor-spin-coil (4);
(3) at soldering turret (6), above wrap up one to layer glass silk ribbon (7), and smear one deck insulating varnish; Then soldering turret (6) is clamped and headgear (1);
(4) adopt intermediate-frequency welding machine to weld, welding output current is 200 ~ 480A, and in the time of welding, the cooling water channel of unlatching intermediate-frequency welding machine carries out coolingly, and cooling water temperature is 0～30 ℃;
(5), before also headgear is not popular in fully, adopt the hole between silver solder general headgear (1) and motor-spin-coil (4) to smear one time;
(6) and after headgear is popular in, scolder is evenly entirely spread upon and headgear (1) and motor-spin-coil (4) between hole and the surrounding of headgear (1) and and the end face of headgear (1) and motor-spin-coil (4); Each and head are welded in 2～3 minutes and complete;
(7) after what a and head of every weldering, trickle is cooling; After the welding of all and head completes, remove insulating protective layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322200.4A CN103394817B (en) | 2013-07-29 | 2013-07-29 | Wound rotor the welding method of head |
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| CN201310322200.4A CN103394817B (en) | 2013-07-29 | 2013-07-29 | Wound rotor the welding method of head |
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| CN103394817A true CN103394817A (en) | 2013-11-20 |
| CN103394817B CN103394817B (en) | 2016-03-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909317A (en) * | 2014-04-04 | 2014-07-09 | 哈尔滨电气动力装备有限公司 | Brazing method for stator coil joint of shield motor |
| CN105312737A (en) * | 2014-11-13 | 2016-02-10 | 贵州航天林泉电机有限公司 | Method and tool for welding flat type copper wire windings and commutators of high-power motor |
| CN105965168A (en) * | 2016-06-06 | 2016-09-28 | 南通金驰机电有限公司 | Welding method for winding rotors and head combining sleeve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007236199A (en) * | 2007-06-21 | 2007-09-13 | Mitsubishi Electric Corp | Alternator |
| JP2009159782A (en) * | 2007-12-27 | 2009-07-16 | Asmo Co Ltd | Terminal, connecting structure between terminal and coil, armature, stator, motor, method of joining terminal and coil, and method of manufacturing stator |
| CN101771304A (en) * | 2010-02-04 | 2010-07-07 | 广州英格发电机有限公司 | Rotor coil overhand sleeve, manufacturing method thereof and welding method thereof |
| CN102593996A (en) * | 2012-03-08 | 2012-07-18 | 山东华力电机集团股份有限公司 | End-to-end joint sleeve for connection of rotor coil of high-voltage winding motor |
-
2013
- 2013-07-29 CN CN201310322200.4A patent/CN103394817B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007236199A (en) * | 2007-06-21 | 2007-09-13 | Mitsubishi Electric Corp | Alternator |
| JP2009159782A (en) * | 2007-12-27 | 2009-07-16 | Asmo Co Ltd | Terminal, connecting structure between terminal and coil, armature, stator, motor, method of joining terminal and coil, and method of manufacturing stator |
| CN101771304A (en) * | 2010-02-04 | 2010-07-07 | 广州英格发电机有限公司 | Rotor coil overhand sleeve, manufacturing method thereof and welding method thereof |
| CN102593996A (en) * | 2012-03-08 | 2012-07-18 | 山东华力电机集团股份有限公司 | End-to-end joint sleeve for connection of rotor coil of high-voltage winding motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909317A (en) * | 2014-04-04 | 2014-07-09 | 哈尔滨电气动力装备有限公司 | Brazing method for stator coil joint of shield motor |
| CN105312737A (en) * | 2014-11-13 | 2016-02-10 | 贵州航天林泉电机有限公司 | Method and tool for welding flat type copper wire windings and commutators of high-power motor |
| CN105965168A (en) * | 2016-06-06 | 2016-09-28 | 南通金驰机电有限公司 | Welding method for winding rotors and head combining sleeve |
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| CN103394817B (en) | 2016-03-16 |
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