CN104259623A - Novel stator iron core press-fitting fastening method - Google Patents
Novel stator iron core press-fitting fastening method Download PDFInfo
- Publication number
- CN104259623A CN104259623A CN201410525293.5A CN201410525293A CN104259623A CN 104259623 A CN104259623 A CN 104259623A CN 201410525293 A CN201410525293 A CN 201410525293A CN 104259623 A CN104259623 A CN 104259623A
- Authority
- CN
- China
- Prior art keywords
- welding
- iron core
- temperature
- stator
- fastening method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 3
- 238000007499 fusion processing Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000011179 visual inspection Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract 1
- 208000007101 Muscle Cramp Diseases 0.000 description 16
- 238000010586 diagram Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a novel stator iron core press-fitting fastening method. A buckle piece groove is not punched through an outer circle of a stator punching piece any longer, a steel pull rod is directly welded at the proper position of the outer surface of an iron core circle, and the welding is performed by a staggered welding technology. The steel pull rod is welded on the outer surface of the iron core circle of a stator. According to the novel stator iron core press-fitting fastening method and mechanism, the stator punching piece is small in bounce-off amount, meanwhile the machining process of the yoke portion buckle piece groove is omitted, and the stator yoke magnetic density is uniform.
Description
Technical field
The present invention relates to the spare and accessory parts technical field of motor, being specifically related to the fastening structure that a kind of large three circle electric machine stator irons adopt when press-fiting.
Background technology
Stator punching adopts silicon steel sheet stamping forming, and stator punching press-fits and laminates, and forms the stator of different size.Current, part electric machine stator iron adopts the structure without radial ducts, core portion is that full punching is overrided to form, punching is fixed by some steel cramps by this type of stator core general, above-mentioned fastening structure requires at the outer nose circle punching cramp groove of stator punching, cramp is placed in case clamping sheet distorts in production process in groove, as depicted in figs. 1 and 2.
The such as patent No. is the patent of 200710135363.6, invention a kind of winding stator piece (iron core) is made up of strip stator piece (iron core), dovetail button riveting position, by the size design of the contact muscle T to decile tooth, it is reeled by the vertical bar stator piece (iron core) of decile punching and forms circular stator plate (iron core), then becomes to have the full circle stator piece (iron core) of certain mechanical strength by dovetail button riveting (2); The size design of the contact muscle T of described decile tooth material thickness (t) 0.75-1.48 doubly, i.e. T=0.75t-1.48t, dovetail is adopted to connect after stator piece (iron core) volume circle, dovetail groove adopts open type design, after another dovetail directly inserts after engaging, hit open type dovetail and form button riveting; The triangular apex position Y=Y of stator piece (iron core) decile groove.+λT，λ＝0.05t-0.85t。
The patent No. be 200920151528.3 utility model relate to a kind of assembled stator punching of brushless direct current motor; folded 1 along the circumferential direction assembled by monolithic; the side that monolithic folds each monolithic 11 of 1 is provided with a cramp 111; opposite side is provided with corresponding cramp groove 112, is also provided with a self-locking groove 114 below the cramp 111 of described monolithic 11; Be provided with a self-locking salient point 113 below the cramp groove 112 of monolithic 11, the matching size of self-locking groove 114 and self-locking salient point 113 closes.Self-locking groove and the self-locking salient point of this utility model match, and with the original cramp of monolithic and cramp groove conbined usage, make monolithic fold between connection be provided with self-locking effect, need not weld and can use.
Adopt said method, need to stator punching punching or at yoke portion otch, these can cause yoke portion to narrow, and have a significant impact the magnetic circuit of motor stator, make the close corresponding raising of motor stator yoke portion magnetic, magnetic resistance raising, thus namely the loss increasing motor reduces the efficiency of motor.
summary of the invention:
The present invention, in order to solve problems of the prior art, adopts a kind of simple and easy rational electric machine stator iron to press-fit fastening structure, alternative traditional cramp.
Technical problem to be solved by this invention is achieved by the following technical solution: stator punching cylindrical incites somebody to action no longer punching cramp groove, but directly welds steel pull bar in iron core circle outer surface appropriate location, and welding adopts zigzag weld connection technology.
A novel unit stator iron core pressing fastening method, at stator core circle outer surface welding steel pull bar,
(1) position to be welded is cleared up: eliminate the defect factors such as greasy dirt, iron rust;
(2) welding rod is prepared: with the E5015 basic electrode of diameter 2.4mm, welding rod dries 3 ~ 4h at the temperature of 250 ~ 360 DEG C, puts into heat-preserving container heat preservation for standby use after oven dry;
(3) weld: select dc welding machine, employing straight polarity direct current method and the mode that welding rod connects negative electrode, weldment connects anode, current range remains on 95 ~ 105 A.
(4) the eddy-current heating stage is welded:
The first step, rises to 500 DEG C by temperature from 300 DEG C, used time 120s;
Second step, rises to 550 DEG C by temperature from 500 DEG C, used time 40s;
3rd step, rises to 600 DEG C by temperature from 550 DEG C, used time 40s;
4th step, rises to 670 DEG C by temperature from 650 DEG C, used time 50s, and temperature just stops heating once reach 670 DEG C,
Enter cooling stage;
(5) cooling stage, cools under carrying out room temperature.
Welding adopts staggered welding, and steel pull bar is alternately welding in the both sides up and down of stator core.
E5015 basic electrode, in fusion process, compensates weld seam with basic electrode in time, when welding rod solder melts and full remuneration completely, and under the stable state of solder, and visual inspection welding quality.
Adopt pressing method and the mechanism of stator core of the present invention, the stator punching amount of flicking is less, eliminates the procedure of yoke portion cramp groove simultaneously, makes stator yoke magnetic density more even.Statistic record display adopt this kind of structure motor stator temperature rise comparatively original structure by decline 2-3 DEG C.The utility structure of the alternative cramp of the present invention, simplifies processing technology, simultaneously also can lifting motor performance.
Accompanying drawing explanation
Fig. 1 is employing cramp pressing method and the structural representation of stator core in prior art.
Fig. 2 adopts by unit stator iron core pressing in prior art the schematic diagram of cramp groove.
Fig. 3 is the schematic diagram of a kind of novel unit stator iron core pressing fastening structure of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
Stator punching cylindrical incites somebody to action no longer punching cramp groove, but directly welds steel pull bar in iron core circle outer surface appropriate location, and welding adopts zigzag weld connection technology.
A novel unit stator iron core pressing fastening method, at stator core circle outer surface welding steel pull bar,
(1) position to be welded is cleared up: eliminate the defect factors such as greasy dirt, iron rust;
(2) welding rod is prepared: with the E5015 basic electrode of diameter 2.4mm, welding rod dries 3 ~ 4h at the temperature of 250 ~ 360 DEG C, puts into heat-preserving container heat preservation for standby use after oven dry;
(3) weld: select dc welding machine, employing straight polarity direct current method and the mode that welding rod connects negative electrode, weldment connects anode, current range remains on 95 ~ 105 A.
(4) the eddy-current heating stage is welded:
The first step, rises to 500 DEG C by temperature from 300 DEG C, used time 120s;
Second step, rises to 550 DEG C by temperature from 500 DEG C, used time 40s;
3rd step, rises to 600 DEG C by temperature from 550 DEG C, used time 40s;
4th step, rises to 670 DEG C by temperature from 650 DEG C, used time 50s, and temperature just stops heating once reach 670 DEG C,
Enter cooling stage;
(5) cooling stage, cools under carrying out room temperature.
Wherein as shown in Figure 3, the junction of stator core adopts welding 3, and its interior welds adopts staggered welding 4, and steel pull bar is alternately welding in the both sides up and down of stator core.
E5015 basic electrode, in fusion process, compensates weld seam with basic electrode in time, when welding rod solder melts and full remuneration completely, and under the stable state of solder, and visual inspection welding quality.
Claims (3)
1. a novel unit stator iron core pressing fastening method, at stator core circle outer surface welding steel pull bar, is characterized in that:
(1) position to be welded is cleared up: eliminate the defect factors such as greasy dirt, iron rust;
(2) welding rod is prepared: with the E5015 basic electrode of diameter 2.4mm, welding rod dries 3 ~ 4h at the temperature of 250 ~ 360 DEG C, puts into heat-preserving container heat preservation for standby use after oven dry;
(3) weld: select dc welding machine, employing straight polarity direct current method and the mode that welding rod connects negative electrode, weldment connects anode, current range remains on 95 ~ 105 A;
(4) the eddy-current heating stage is welded:
The first step, rises to 500 DEG C by temperature from 300 DEG C, used time 120s;
Second step, rises to 550 DEG C by temperature from 500 DEG C, used time 40s;
3rd step, rises to 600 DEG C by temperature from 550 DEG C, used time 40s;
4th step, rises to 670 DEG C by temperature from 650 DEG C, used time 50s, and temperature just stops heating once reach 670 DEG C,
Enter cooling stage;
(5) cooling stage, cools under carrying out room temperature.
2. a kind of novel unit stator iron core pressing fastening method according to claim 1, is characterized in that: welding adopts staggered welding, and steel pull bar is alternately welding in the both sides up and down of stator core.
3. a kind of novel unit stator iron core pressing fastening method according to claim 1, it is characterized in that: E5015 basic electrode is in fusion process, timely basic electrode compensates weld seam, when welding rod solder melts and full remuneration completely, and under the stable state of solder, visual inspection welding quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525293.5A CN104259623B (en) | 2014-10-09 | 2014-10-09 | A kind of novel unit stator iron core pressing fastening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525293.5A CN104259623B (en) | 2014-10-09 | 2014-10-09 | A kind of novel unit stator iron core pressing fastening method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104259623A true CN104259623A (en) | 2015-01-07 |
| CN104259623B CN104259623B (en) | 2016-01-27 |
Family
ID=52151268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410525293.5A Active CN104259623B (en) | 2014-10-09 | 2014-10-09 | A kind of novel unit stator iron core pressing fastening method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104259623B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414424A (en) * | 2015-11-04 | 2016-03-23 | 合肥海源机械有限公司 | Forging method for forklift containing nichrome and fork tooth containing nichrome |
| CN105562572A (en) * | 2015-12-28 | 2016-05-11 | 合肥中澜新材料科技有限公司 | Forging method for shifting fork used for lathe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3899652A (en) * | 1973-12-26 | 1975-08-12 | Maremont Corp | Extended range inductor alternator arc welder |
| US6088906A (en) * | 1997-09-16 | 2000-07-18 | Ut-Battelle, Llc | Method of manufacturing squirrel cage rotors |
| US6353198B1 (en) * | 2000-06-14 | 2002-03-05 | General Electric Company | Welded stator winding splice joint for rotary electric machines and method of forming the same |
| CN201403004Y (en) * | 2009-04-28 | 2010-02-10 | 曾焕城 | Assembled stator punching of brushless direct current motor |
| CN201918807U (en) * | 2010-06-18 | 2011-08-03 | 中国船舶重工集团公司第七一二研究所 | Induction propulsion motor |
| CN202634091U (en) * | 2012-05-29 | 2012-12-26 | 佳木斯电机股份有限公司 | Draw-bar type stator iron core structure for double-feed asynchronous wind-power generator |
-
2014
- 2014-10-09 CN CN201410525293.5A patent/CN104259623B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3899652A (en) * | 1973-12-26 | 1975-08-12 | Maremont Corp | Extended range inductor alternator arc welder |
| US6088906A (en) * | 1997-09-16 | 2000-07-18 | Ut-Battelle, Llc | Method of manufacturing squirrel cage rotors |
| US6353198B1 (en) * | 2000-06-14 | 2002-03-05 | General Electric Company | Welded stator winding splice joint for rotary electric machines and method of forming the same |
| CN201403004Y (en) * | 2009-04-28 | 2010-02-10 | 曾焕城 | Assembled stator punching of brushless direct current motor |
| CN201918807U (en) * | 2010-06-18 | 2011-08-03 | 中国船舶重工集团公司第七一二研究所 | Induction propulsion motor |
| CN202634091U (en) * | 2012-05-29 | 2012-12-26 | 佳木斯电机股份有限公司 | Draw-bar type stator iron core structure for double-feed asynchronous wind-power generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414424A (en) * | 2015-11-04 | 2016-03-23 | 合肥海源机械有限公司 | Forging method for forklift containing nichrome and fork tooth containing nichrome |
| CN105562572A (en) * | 2015-12-28 | 2016-05-11 | 合肥中澜新材料科技有限公司 | Forging method for shifting fork used for lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104259623B (en) | 2016-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102974946B (en) | Method for controlling deformation of sheet bar honeycomb during vacuum soldering and brazing | |
| JP5626497B2 (en) | ERW pipe welding equipment | |
| CN104259623B (en) | A kind of novel unit stator iron core pressing fastening method | |
| JP2014093917A (en) | Method and device for recovering permanent magnet | |
| CN105448585A (en) | Contact assembly of arc-extinguishing chamber and arc-extinguishing chamber using contact assembly | |
| CN202344113U (en) | Device for local demagnetization | |
| CN105149761A (en) | Lithium battery pack welding method and welding jig | |
| CN103659121A (en) | Welding fixture enabling automotive generator cooling fan blades to be welded to rotor | |
| CN204366302U (en) | A kind of stator ventilation channel plate I-steel welding quick position tool | |
| CN201813293U (en) | Motor stator bar wound core | |
| CN201054817Y (en) | A welding middle frequency induction ring for parallel welding | |
| CN205355136U (en) | A positioner for spot welding nickel strap | |
| CN103624387B (en) | Automobile current generator cooling fan blade is welded to epitrochanterian welding method by one | |
| CN108127320A (en) | Generator Stator core ventilation slotted vane welding equipment positioning mold | |
| CN205282377U (en) | Contact assembly of arc extinguishing chamber and arc extinguishing chamber using the contact assembly | |
| CN211588875U (en) | Inductance coil welding equipment | |
| CN205021086U (en) | Lithium cell package welding jig | |
| CN203003328U (en) | Projection welding jig | |
| JP2003136283A (en) | Jig for welding laminated steel sheets | |
| CN201207735Y (en) | Induction heating coil for welding of motor rotor terminal ring | |
| CN203521095U (en) | Iron core | |
| CN207858149U (en) | Generator Stator core ventilation slotted vane welding equipment positioning mold | |
| CN204334156U (en) | A tooth pressing plate for fixing the rotor punching plate of a motor | |
| CN102139413B (en) | Process for welding stator punching sheet of high-efficiency permanent magnet direct-current synchronous motor in electric vehicle | |
| CN205051535U (en) | Motor cast aluminium rotor and quick -witted self -heating mechanism of rotor shaft interference fit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |