CN102497041B - Sectional magnetic yoke structure of synchronous alternating-current motor and processing method thereof - Google Patents
Sectional magnetic yoke structure of synchronous alternating-current motor and processing method thereof Download PDFInfo
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- CN102497041B CN102497041B CN 201110360821 CN201110360821A CN102497041B CN 102497041 B CN102497041 B CN 102497041B CN 201110360821 CN201110360821 CN 201110360821 CN 201110360821 A CN201110360821 A CN 201110360821A CN 102497041 B CN102497041 B CN 102497041B
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Abstract
The invention provides a sectional magnetic yoke structure of a synchronous alternating-current motor, which comprises a shaft and a magnetic yoke. The shaft comprises a magnetic yoke matching section and a shaft shoulder, the magnetic yoke matching section has a sectional structure, the diameter of each unit of the magnetic yoke matching section is reduced sequentially from left to right, the total length of the magnetic yoke matching section is larger than that of the magnetic yoke, the shaft shoulder is arranged on the left of the magnetic yoke matching section, and the diameter of the shaft shoulder is larger than that of the magnetic yoke matching section. The magnetic yoke has a sectional structure formed by welding a plurality of magnetic yoke plates and is sleeved on the magnetic yoke matching section of the shaft, and the left end of the magnetic yoke is butted to the shaft shoulder. The invention further provides a sectional magnetic yoke processing method of the synchronous alternating-current motor. The section magnetic yoke structure is simple and compact and evident in action effect. Processing and assembling are simpler and more convenient, manufacturing cycle is shortened and manufacturing cost is reduced by changing the magnetic yoke on the premise without changing the electromagnetic design.
Description
Technical field
The present invention relates to yoke and processing method thereof, relate in particular to a kind of sectional magnetic yoke structure and processing method thereof of synchronous AC motor.
Background technology
At present, the yoke of large-scale synchronous AC motor generally adopts the mounting means of shrunk-in shaft, is about to be enclosed within on axle after the yoke heating.Because existing yoke adopts whole forging, yoke itself is longer, bothers very much when processing, suit, and the manufacturing cycle is extended, and the forging price is more expensive, and manufacturing cost is also very high.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, provide a kind of suit that can make to be more prone to, thus and sectional magnetic yoke structure and the processing method thereof that can use cheap general steel plate to reduce costs.
Technical scheme of the present invention is as follows:
The invention provides a kind of sectional magnetic yoke structure of synchronous AC motor, comprise axle and yoke, described axle coordinates section and the shaft shoulder to consist of by yoke, it is segmental structure that described yoke coordinates section, the diameter of every section reduces from left to right successively, described yoke coordinates the total length of section greater than the total length of yoke, and it is the shaft shoulder that described yoke coordinates the left side of section, and the diameter of the described shaft shoulder coordinates the diameter of section greater than yoke; Described yoke is the segmental structure that a plurality of yoke plates are welded, and the yoke that described yoke is enclosed within axle coordinates on section, and left end and the shaft shoulder offset.
The present invention more provides a kind of segmented yoke processing method of synchronous AC motor, with lathe, axle is processed, and car goes out each yoke cooperation section respectively from right to left, and each yoke coordinates the diameter of section to increase successively from right to left 2mm; Coordinate the left side of section in whole yoke with lathe, the yoke that nestles up high order end coordinates the section car to go out the shaft shoulder, and the diameter of the described shaft shoulder coordinates the large 20mm of diameter of section than the yoke of high order end; T stern notch and the chamfering of processing yoke plate stack yoke plate from bottom to top neatly, and the chamfering weldering of yoke plate is full, form yoke; The endoporus of processing yoke, the diameter of bore of each section yoke is worked into the size that each section yoke corresponding with it coordinates the equal diameters of section, except the yoke cooperation section of low order end, the right-hand member of every section yoke all coordinates the segment length to go out 5mm than the yoke corresponding with it, and the total length of yoke cooperation section grows 10mm at least than the total length of yoke; Yoke is put into baking box, be heated to 200 ℃, be enclosed within while hot on axle, make the left end of yoke prop up the right-hand member of the shaft shoulder, naturally cool to normal temperature after having overlapped.
Useful technique effect of the present invention is:
The present invention is simple in structure, compact, and action effect is obvious, in the situation that do not change Electromagnetic Design, by the change to yoke design, has reached and makes processing, assembling easier, reduces the manufacturing cycle, reduces the purpose of manufacturing cost.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of the yoke plate in the present invention.
Fig. 3 is the A-A cutaway view of Fig. 2.
Embodiment
For enabling further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation use, the present invention is limited.
As shown in Figure 1, the sectional magnetic yoke structure of synchronous AC motor of the present invention comprises axle 1 and yoke 2 two large divisions.Its axis 1 comprises that yoke coordinates section 1.2 and the shaft shoulder 1.1, it is segmental structure that yoke coordinates section 1.2, the diameter of every adjacent segment differs 2mm, reduce successively from left to right, its total length grows 10mm at least than yoke 2, each yoke coordinates the length of section 1.2 to be about 300mm, concrete length depending on total length.It is the shaft shoulder 1.1 that yoke coordinates the left side of section 1.2, and the diameter of the shaft shoulder 1.1 coordinates the large 20mm of high order end of section 1.2 than yoke.Yoke 2 is welded by a plurality of yoke plates 2.1, the thick approximately 70mm of each yoke plate 2.1.As shown in Figure 2 and Figure 3, T stern notch 2.1.3 and chamfering 2.1.1 that processing is arranged on yoke plate 2.1, the yoke of the straight diameter ratio shaft 1 of its endoporus 2.1.2 coordinates the little 5mm of minimum diameter of section 1.2, after welding, the diameter of the endoporus 2.1.2 of 2 sections of each yokes is worked into and each section yoke coordinates section 1.2 sizes that equate.As shown in Figure 1, except the yoke of low order end coordinated section 1.2, the right-hand member that each yoke is 2 sections coordinated section 1.2 to grow 5mm than the yoke corresponding with it, and the yoke that yoke 2 is enclosed within axle 1 coordinates on section 1.2, and the left end of whole yoke 2 and the shaft shoulder 1.1 offset.
The processing method of the segmented yoke of synchronous AC motor of the present invention is as follows:
At first with lathe, axle 1 is processed, gone out to parting other car on the left side each section that yoke coordinates section 1.2 by the right side, ascending every section diameter increases 2mm; The axletree shoulder 1.1 again, coordinate the large 20mm of diameter of section 1.2 than yoke; T stern notch 2.1.3 and the chamfering 2.1.1 of reprocessing yoke plate are welded into yoke 2 with yoke plate 2.1, and yoke plate 2.1 is stacked neatly from bottom to top, and the chamfering 2.1.1 weldering of yoke plate 2.1 is full; Process afterwards the endoporus 2.1.2 of yoke 2, the diameter of each section endoporus 2.1.2 is worked into and each section yoke coordinates section 1.2 sizes that equate, each coordinates section (except the yoke of low order end coordinates section), and yoke 2 right-hand members are all than yoke cooperation section 1.2 long 5mm; Again yoke 2 is put into oven heat to 200 ℃, then be enclosed within while hot on axle 1, yoke 2 left ends will firmly be against the right-hand member of the shaft shoulder 1.1, naturally cool to normal temperature after having overlapped.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive without departing from the basic idea of the present invention or associate, all should think be included in protection scope of the present invention within.
Claims (1)
1. the segmented yoke processing method of a synchronous AC motor is characterized in that comprising the following steps:
Step 1 is processed axle with lathe, and car goes out each yoke cooperation section respectively from right to left, and each yoke coordinates the diameter of section to increase successively from right to left 2mm;
Step 2 coordinates the left side of section in whole yoke with lathe, the yoke that nestles up high order end coordinates the section car to go out the shaft shoulder, and the diameter of the described shaft shoulder coordinates the large 20mm of diameter of section than the yoke of high order end;
Step 3, T stern notch and the chamfering of processing yoke plate stack yoke plate from bottom to top neatly, and the chamfering weldering of yoke plate is full, form yoke;
Step 4, the endoporus of processing yoke, the diameter of bore of each section yoke is worked into the size that each section yoke corresponding with it coordinates the equal diameters of section, except the yoke cooperation section of low order end, the right-hand member of every section yoke all coordinates the segment length to go out 5mm than the yoke corresponding with it, and the total length of yoke cooperation section grows 10mm at least than the total length of yoke;
Step 5 is put into baking box with yoke, is heated to 200 ℃, is enclosed within while hot on axle, makes the left end of yoke prop up the right-hand member of the shaft shoulder, naturally cools to normal temperature after having overlapped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110360821 CN102497041B (en) | 2011-11-15 | 2011-11-15 | Sectional magnetic yoke structure of synchronous alternating-current motor and processing method thereof |
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| CN 201110360821 CN102497041B (en) | 2011-11-15 | 2011-11-15 | Sectional magnetic yoke structure of synchronous alternating-current motor and processing method thereof |
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| CN102497041A CN102497041A (en) | 2012-06-13 |
| CN102497041B true CN102497041B (en) | 2013-06-12 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124837A (en) * | 2014-07-24 | 2014-10-29 | 苏州南新电机有限公司 | Manufacturing process of motor rotor |
| CN105990919B (en) * | 2015-02-11 | 2020-01-07 | 上海鸣志电器股份有限公司 | High-speed motor rotor based on segmented magnetic steel and variable cross-section shaft |
| CN108436394B (en) * | 2018-03-21 | 2019-11-08 | 哈尔滨电机厂有限责任公司 | Large-scale pumped storage power generator-motor machine rotor rigidity magnetic yoke method of manufacturing technology |
| CN114083229B (en) * | 2021-11-04 | 2022-11-29 | 东芝水电设备（杭州）有限公司 | Method for manufacturing annular thick plate magnet yoke |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448123A (en) * | 1992-05-05 | 1995-09-05 | Atlas Copco Tools Ab | Electric synchronous motor |
| CN201191778Y (en) * | 2008-05-06 | 2009-02-04 | 上海电气集团上海电机厂有限公司 | Ultra-long rotor construction of synchronous motor for steel pipe manufacturing |
| CN201383719Y (en) * | 2009-03-12 | 2010-01-13 | 上海电气集团上海电机厂有限公司 | Rotor structure of AC/AC frequency rolled-steel motor |
| CN202374062U (en) * | 2011-11-15 | 2012-08-08 | 中电电机股份有限公司 | Sectional magnetic yoke structure for synchronous AC motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08308156A (en) * | 1995-04-27 | 1996-11-22 | Seiko Epson Corp | Permanent-magnet rotor |
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2011
- 2011-11-15 CN CN 201110360821 patent/CN102497041B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448123A (en) * | 1992-05-05 | 1995-09-05 | Atlas Copco Tools Ab | Electric synchronous motor |
| CN201191778Y (en) * | 2008-05-06 | 2009-02-04 | 上海电气集团上海电机厂有限公司 | Ultra-long rotor construction of synchronous motor for steel pipe manufacturing |
| CN201383719Y (en) * | 2009-03-12 | 2010-01-13 | 上海电气集团上海电机厂有限公司 | Rotor structure of AC/AC frequency rolled-steel motor |
| CN202374062U (en) * | 2011-11-15 | 2012-08-08 | 中电电机股份有限公司 | Sectional magnetic yoke structure for synchronous AC motor |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-308156A 1996.11.22 |
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