CN101656448B - Key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor - Google Patents

Key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor Download PDF

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Publication number
CN101656448B
CN101656448B CN200910194566A CN200910194566A CN101656448B CN 101656448 B CN101656448 B CN 101656448B CN 200910194566 A CN200910194566 A CN 200910194566A CN 200910194566 A CN200910194566 A CN 200910194566A CN 101656448 B CN101656448 B CN 101656448B
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China
Prior art keywords
permanent magnet
rotor
technology
baffle plate
dummy shaft
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CN200910194566A
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CN101656448A (en
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陈伟华
姚丙雷
张宝强
徐全
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Shanghai Electrical Apparatus Research Institute Group Co Ltd
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Shanghai Electrical Apparatus Research Institute Group Co Ltd
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Abstract

The invention relates to a key manufacturing technology of a built-in type permanent magnet synchronous electric motor rotor. An iron core overlying technology comprises the following steps: fixing a dummy shaft, and sleeving the dummy shaft into a rotor baffle plate; sleeving arranged rotor sheets into the dummy shaft; inserting two stud bolts, and screwing nuts; then sequentially sleeving rotor sheets into the dummy shaft; installing the rotor baffle plate at the other side of the overlayed rotor sheet, and then fixing the rotor baffle plate; and overlying and firming the rotor sheets on a press machine. A permanent magnet assembling technology comprises the following steps: cleaning a permanent magnet groove, i.e. adding a groove cleaning technology, wherein a groove cleaning tool is a square lead block, and the permanent magnet groove reaches a permanent magnet groove assembly requirement after being cleaned; marking the polarity of each permanent magnet; placing the permanent magnets into the permanent magnet groove of the rotor; pushing the permanent magnets to the bottom of the permanent magnet groove by a non-magnetic rigid round bar till the permanent magnet groove is filled with the permanent magnets; and pouring epoxy resin glue into the permanent magnet groove. The invention has simple and practical technology process and higher primary qualification rate of products and shortens the production period of the products.

Description

Key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor
Technical field
The present invention relates to the key manufacturing technology of built-in permanent-magnet synchronous motor rotor, belong to technical field of motors.
Background technology
In recent years; Asynchronous starting permanent magnet synchronous motor is with the performance of its efficient and the high excellence of power factor; Receive the extensive concern of each side; The insider has done many research to mechanism and aspects such as operational efficiency that improves motor and power factor that the rotor magnetic circuit structural pattern of magneto, pull up torque and pull-in torque produce, think that processing technology is most important to magneto efficiency and quality, but mature technique seldom.
Through patent retrieval, Chinese patent 01140086.2 discloses the formation of synchronous electric motor rotor and has made the method for synchronous electric motor rotor, and this synchronous motor rotor structure comprises main core and auxiliary iron core, and permanent magnet is a watt shape.
03127201.0 of patent discloses a kind of manufacturing approach and miniature motor rotor of miniature motor rotor, and product structure belongs to the micromachine category.Permanent magnet machine rotor is in manufacture process at present; Manufacturing process unshakable in one's determination still adopts the dummy shaft location, and it is irregular to cause iron core to laminate, and the permanent magnet trough dimensional tolerance exceeds standard; The permanent magnet assembling is difficult, has influenced performance, construction cycle and the production efficiency of magneto.
Summary of the invention
The object of the present invention is to provide the key manufacturing technology of built-in permanent-magnet synchronous motor rotor; Be used to solve the big problem of permanent magnet assembly difficulty of internal permanent magnet synchronous motor; Provide the internal permanent magnet synchronous motor rotor core to make key manufacture; Guarantee the motor rotor assembly precision, enhance productivity, thereby guarantee product quality and reliability.
1), rotor core laminates technology for achieving the above object, technical scheme of the present invention is that the key manufacturing technology of built-in permanent-magnet synchronous motor rotor comprises two parts:; 2) permanent magnet assembly technology.Rotor core laminates technology, the steps include: 1), dummy shaft is fixed, be inserted in the rotor baffle plate then; 2), will manage good rotor punching and be inserted in dummy shaft, inserts two studs, on the stud outside the end plate, screw in nut then, be inserted in dummy shaft to the punching that weighs up successively again, guarantee the permanent magnet trough evenness of rotor core; 3), the rotor baffle plate is installed, fix with nut then at the opposite side of the rotor punching of folding; 4), on forcing press, laminate at last firm;
The permanent magnet assembly technology:
1), before rotor assembling permanent magnet, clear up permanent magnet trough, increased the clear groove technology of cast-aluminum rotor.Cleaning tool is a square helical pitch piece, and material is magnetic conduction hard material not, its width than the little 5-30mm of permanent magnet trough about, length is 1/5~1/3 of electric machine iron core length, thickness is than the big 0.012-0.5mm of permanent magnet.Through after the clear groove process, permanent magnet trough can reach the requirement of permanent magnet assembling.
2), on every permanent magnet, indicate polarity.
3), hand takes permanent magnet to put into the permanent magnet trough of rotor, with magnetic conduction hard pole not permanent magnet sent into the bottom of permanent magnet trough, until all permanent magnet trough are filled permanent magnet.
4), epoxide-resin glue is injected permanent magnet trough.
5), with stud fixed rotor baffle plate, in case permanent magnet comes off in operation process.
Beneficial effect of the present invention: laminate technology with the threephase asynchronous rotor core and compare; The advantage that laminates technology of the present invention is; Owing to adopted stud location and dummy shaft location, can guarantee the evenness of rotor core permanent magnet trough, make the machining accuracy of rotor core can satisfy the matching requirements of permanent magnet; Not only improve the quality that laminates of rotor core, shortened the machining process of motor; The permanent magnet assembly technology; Increased clear groove technical process; Make the tolerance of permanent magnet trough can satisfy the requirement that permanent magnet assembles, optimized the technical process of permanent magnet assembling, shortened the process-cycle of permanent magnet assembling; The rotor core quality of magneto also is improved, thereby has improved the reliability of permagnetic synchronous motor.Technical process of the present invention is simple, practical, and the first-time qualification rate of product is high, has shortened the production cycle of product.
Description of drawings
Fig. 1 is the structural representation of built-in permanent-magnet synchronous motor rotor of the present invention;
Fig. 2 is the permanent magnet assembly technology flow chart of built-in permanent-magnet synchronous motor of the present invention.
Embodiment
With reference to Fig. 1, this is the structural representation of permanent-magnet synchronous motor rotor of the present invention.
As shown in the figure, described parts such as dummy shaft 1, bulkhead nut 2, rotor baffle plate 3, rotor core 4, stud 5, nut 6, rotor 7, permanent magnet trough 8.
Utilize axis hole keyway location, its locate mode precision is low, and the rotor core quality can not satisfy required precision, and the evenness of permanent magnet trough can not get guaranteeing that quality unshakable in one's determination can not satisfy required precision.Common solution is; Utilize artificial permanent magnet trough is ground to frustrate; Increase the bilateral air gap of permanent magnet trough, permanent magnet can be packed in the permanent magnet machine rotor, but this technology has been wasted great amount of time and manpower; Prolonged the production cycle of motor and increased the processing cost of motor, and caused easily owing to the motor permanent magnet groove causes the result that the magneto runnability worsens in the increase of direction of magnetization air gap.
In laminating the rotor core process if adopt false permanent magnet positioning fabrication technique; Though can guarantee the machining accuracy of permanent magnet trough; But be difficult for grasping the opportunity of the false permanent magnet of dismounting after cast aluminium is accomplished in rotor core, and the first-time qualification rate of cast-aluminum rotor is lower, and working (machining) efficiency is low.
The technical process that iron core laminates is:
1, dummy shaft 1 is fixing, be inserted in rotor baffle plate 3 then on the right side.
2, will manage good rotor punching and be inserted in dummy shaft 1, insert two studs 5, on the stud in the rotor baffle plate outside, screw in right side nut 6 then, be inserted in dummy shaft 1 to the punching that weighs up successively again, guarantee the rotor core evenness;
3), another rotor baffle plate is installed, fix with left side bulkhead nut 2 and stud 5 then in the left side of the rotor punching of folding;
4, on forcing press, laminate at last firm.
The technical process of described permanent magnet assembling:
1), before rotor assembling permanent magnet, clear up permanent magnet trough, increased the clear groove treatment process of cast-aluminum rotor.Cleaning tool is a square helical pitch piece, and material is magnetic conduction hard material not.Through after the clear groove process, permanent magnet trough can reach the requirement of permanent magnet assembling.
2), on every permanent magnet, indicate polarity.
3), hand takes permanent magnet to put into the permanent magnet trough of rotor, with magnetic conduction hard pole not permanent magnet sent into the bottom of permanent magnet trough, until all permanent magnet trough are filled permanent magnet.
4), epoxide-resin glue is injected permanent magnet trough.
5), with the fixing left and right sides rotor baffle plate of stud, in case permanent magnet comes off in operation process.
Though the present invention describes with reference to the above embodiments; But those of ordinary skill in the art; Will be appreciated that above embodiment is used for explaining the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as to qualification of the present invention; As long as in connotation scope of the present invention, to the variation of above-described embodiment, the protection range that distortion all will fall into claim of the present invention.

Claims (5)

1. key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor comprises that rotor core laminates technology and permanent magnet assembly technology, is used to improve the machining accuracy of permanent magnet synchronous motor; Improve the performance of magneto, it is characterized in that: described rotor core laminates technology, utilizes axis hole keyway location; The steps include: 1), dummy shaft is fixed, be inserted in the rotor baffle plate then, 2), will manage good rotor punching and be inserted in dummy shaft; Insert two studs, on the stud in the rotor baffle plate outside, screw in the left side nut then, be inserted in dummy shaft to the punching that weighs up successively again; Guarantee the evenness of rotor core; 3), the rotor baffle plate is installed, fix 4 then with nut at the opposite side of the rotor punching of folding), at last on forcing press, laminate firm;
Described permanent magnet assembly technology, the steps include: increased with cleaning tool the clear groove of cast-aluminum rotor is handled before rotor assembling permanent magnet; Through behind the clear groove, permanent magnet trough reaches the permanent magnet matching requirements, on every permanent magnet, indicates polarity; Put into the permanent magnet trough of rotor; With magnetic conduction hard pole not permanent magnet is sent into the bottom of permanent magnet trough,, epoxide-resin glue is injected permanent magnet trough until all permanent magnet trough are filled permanent magnet; With stud fixed rotor baffle plate, in case permanent magnet comes off in operation process.
2. key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor as claimed in claim 1; It is characterized in that: the described axis hole keyway location that utilizes; Its locate mode when adopting the dummy shaft location, increases the precision that the orientation tool that is similar to the groove lining bar guarantees rotor core.
3. key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor as claimed in claim 1; It is characterized in that: described rotor core laminates technology; Because stud fixed rotor baffle plate; Prevent that permanent magnet from coming off in motor operation course, after laminating the technology completion, needn't from iron core, remove, shortened the machining process of motor.
4. key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor as claimed in claim 1; It is characterized in that: described cleaning tool; It is a square not magnetic conduction hard plate; Its width is than the little 5-30mm of permanent magnet trough, and length is 1/5~1/3 of electric machine iron core length, and thickness is than the big 0.05-0.510mm of permanent magnet.
5. key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor as claimed in claim 1; It is characterized in that: described rotor punching; Be inserted in dummy shaft to a folded punching, insert two studs, the stud in the rotor baffle plate outside screws in the right side nut then; Be inserted in punching successively on the dummy shaft again, guarantee that the permanent magnet trough of rotor core is concordant.
CN200910194566A 2009-08-25 2009-08-25 Key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor Active CN101656448B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910194566A CN101656448B (en) 2009-08-25 2009-08-25 Key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor

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Application Number Priority Date Filing Date Title
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Families Citing this family (13)

* Cited by examiner, † Cited by third party
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CN101814805A (en) * 2010-04-19 2010-08-25 江苏爱尔玛电机制造有限公司 Slotted positioning magnetic steel inserting tool and method
CN102347673B (en) * 2011-08-03 2013-01-30 深圳市安托山特种机械有限公司 Method for assembling and fastening dual permanent magnet power frequency brushless synchronous generator rotor magnetic shoe
CN103138444B (en) * 2011-11-29 2015-06-03 永济新时速电机电器有限责任公司 Permanent magnet synchronous motor rotor used for electric automobile
KR101243701B1 (en) * 2012-06-04 2013-03-15 박대규 A torque motor
CN102738932A (en) * 2012-06-28 2012-10-17 奇瑞汽车股份有限公司 Novel permanent magnet generator rotor for range extender of electric vehicle
CN102756345B (en) * 2012-07-20 2014-12-10 国电联合动力技术有限公司 Permanent magnet assembly fixture for large permanent magnet direct-driven wind generator and assembly method of permanent magnet assembly fixture
CN102832729B (en) * 2012-08-31 2015-06-17 芜湖杰诺瑞汽车电器系统有限公司 Permanent magnet synchronous motor rotor and manufacturing process thereof
CN103607081A (en) * 2013-12-05 2014-02-26 山东理工大学 Electromagnetism and permanent magnet invisible magnetic pole generator rotor assembling method
CN105896850A (en) * 2016-05-27 2016-08-24 天津大学 Rotor assembly method of 10,000rpm embedded permanent magnet synchronous motor
CN106981958A (en) * 2017-05-23 2017-07-25 中达电机股份有限公司 A kind of internal permanent magnet synchronous motor rotor assembling method
CN107248802A (en) * 2017-08-21 2017-10-13 伊泽瑞尔(大连)科技有限公司 A kind of built-in permanent magnet motor rotor preparation method
CN109698590B (en) * 2017-10-23 2020-11-13 株洲中车机电科技有限公司 Vacuum glue pouring method for permanent magnet motor rotor
CN111371264A (en) * 2018-12-25 2020-07-03 株洲中车机电科技有限公司 Manufacturing method of permanent magnet motor rotor

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