CN100589309C - Permanent-magnet motor and method of fixing rotor magnetic steel - Google Patents
Permanent-magnet motor and method of fixing rotor magnetic steel Download PDFInfo
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- CN100589309C CN100589309C CN200710071174A CN200710071174A CN100589309C CN 100589309 C CN100589309 C CN 100589309C CN 200710071174 A CN200710071174 A CN 200710071174A CN 200710071174 A CN200710071174 A CN 200710071174A CN 100589309 C CN100589309 C CN 100589309C
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- permanent magnet
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- balance mud
- magnet motor
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Abstract
The invention relates to a method to fix a permanent magnet motor and a magnetic steel structure of a rotor. The rotor of the inventive permanent magnet motor comprises a rotor yoke, a clamp spring, abearing, a shaft and a key, a permanent body and balanced sludge. The permanent magnet is shaped as a concentric circular arc, while the balanced sludge is a dual-composition epoxy-typed solidifyingagent, which can cement the rotor unit into a cage-shaped structure. In accordance with the method provided by the invention, the permanent magnet can be divided into at least two concentric arc-shaped parts with equal scale mark, based on the semi-finished permanent motor which is composed of stators and rotors. And the balanced sludge will be applied to all chamfering edges, as well as around the permanent magnet, to accomplish the cage-shaped structure. The invention is applicable to the motor with high precise control operation, which integrates the fixing method and the dynamic balance process of the rotor. The cage-shaped structure and the permanent magnet motor are characterized in high performance, safety, reliability and durability.
Description
Technical field
The present invention relates to the fixing means of a kind of permanent magnet motor and rotor magnetic steel thereof.
Background technology
In recent years, development along with modern control theory and technology, the technology that adopts rare earth to make permanent magnet motor constantly improves, and is used widely at the gearless machine of elevator, and permanent-magnet synchnorous gearless dragging machine finally is substituted with the asynchronous traction machine of gear has become inevitable development trend.
At present, the permanent magnet fixed form of permanent magnet motor is generally on the market: a kind of is with pressing plate and screw permanent magnet; Another kind is that it is bonding that it adopts glue to carry out usually with rotor and the bonding mode of permanent magnet, adds to coat to be with to add glue realization fixed permanent magnet.There is certain shortcoming in above-mentioned two kinds of fixed forms for the motor that requires accurately control.This is must consider the dynamic balancing of rotor because want to realize smooth rotation.If adopt aforesaid way one described pressing plate and screw permanent magnet, then need on rotor, beat the screwed hole of multiple in permanent magnet, complex process, and need do dynamic balancing separately.Add the fixed form that glue fixes the coating permanent magnet if adopt aforesaid way two described utilizations to coat band, the curing agent in the cladding of this kind fixed form needs with being heating and curing, and for permanent magnet, high temperature can cause demagnetization to reduce the magnet steel performance; And this coating band costs an arm and a leg, the cladding process complexity; Equally also need to do separately dynamic balancing.Patent is not found this type of invention by retrieval.In a word, the reality technology fixing means of none desirable permanent magnet motor and rotor magnetic steel thereof still.
Once the Chinese patent of the relevant permanent magnet motor aspect of application such as the patent No. 200610155454.1,200710067177.3,200710068037.8 before the applicant.These patents all do not relate to the application's technical protection content.
Chinese patent by retrieval, the invention that relates to the permanent magnet motor aspect is few, and they and the present invention are inequality.China Patent No. for example: 00803290.4, " magnetization method of permanent magnet motor and permanent magnet motor " relates to the magnet material that does not magnetize in the rotor core configuration, but different with fixed form with the position of magnetizing of the present invention.Other has China Patent No.: 02108062.3,01110965.3,02273407.4,200420107266.8,02265754.1 etc., and these patents do not relate to the application's technical protection content yet.
In sum, prior art none relate to the application's the permanent magnet motor and the fixing means of rotor magnetic steel thereof.
Summary of the invention
The fixing means that the purpose of this invention is to provide a kind of permanent magnet motor and rotor magnetic steel thereof, the fixed form and the dynamic balancing technics of permanent magnet are united two into one, simplified the production formality, the permanent magnetism physical efficiency is fixed on the rotor yoke quickly and easily, and can in fixation procedure, realizes dynamically balanced process.Adopt the permanent magnet motor that the inventive method obtained, overcome the shortcoming of prior art.
Concrete technical scheme of the present invention is:
A kind of permanent magnet motor comprises the permanent magnet motor that is made of stator and rotor, and wherein: rotor portion is made of rotor yoke, jump ring, bearing, axle and key, permanent magnet, balance mud,
Described permanent magnet be shaped as the concentric circles arcuation,
Described balance mud is bi-component epoxy class curing agent, becomes mouse cage type structure by the bonding rotor integral body that makes.
The present invention provides a kind of fixing means for preparing above-mentioned permanent magnet motor rotor magnet steel in addition, and concrete steps comprise:
The step of the uncompleted permanent magnet motor that preparation is made of stator and rotor,
Described permanent magnet shape is made the concentric circles arcuation that is no less than average calibration more than two,
At each edge chamfer of concentric circles arcuation permanent magnet, and guarantee to reach 1～5 millimeter being longer than an other arc chord length near the chord length of the arc of bonding plane,
Evenly be coated in balance mud around the permanent magnet permanent magnet around,
Curing by balance mud makes permanent magnet form a whole mouse cage type structure.
The present invention compared with prior art has following beneficial effect: 1, the present invention has adopted novel fixing means with rotor and permanent magnet, has satisfied the demanding control motor requirement of accuracy effectively.2, described fixing means and rotor dynamic balancing technics unite two into one, and simplified technology, have quickened manufacturing rhythm, operation also is easier to.3, the integral type cage-shaped structure that is obtained and final products-permanent magnet motor have performance height, characteristics such as safe and reliable and durable in use.4, whole, continuous cage-shaped structure has avoided reality technology to adopt the risk that easily comes off of split pressing plate very effectively.
Description of drawings
Fig. 1 is the profile of one embodiment of the invention.
Fig. 2 is the end view of Fig. 1.
Indicate among the figure: 1, rotor yoke, 2, jump ring, 3, bearing, 4, axle, 5, key, 6. bearing, 7, permanent magnet, 8, balance mud.
Embodiment
Further describe detailed technology content of the present invention and embodiment below in conjunction with accompanying drawing, note that embodiment described herein just schematically, and be not to be to various aspects of the present invention restriction.In the accompanying drawings, identical reference marker is represented same or analogous parts.
Permanent magnet motor illustrated in figures 1 and 2 comprises the permanent magnet motor that is made of stator and rotor, and wherein: rotor portion is made of rotor yoke 1, jump ring 2, bearing 3, axle 4 and 6, key 5, permanent magnet 7, balance mud 8,
Described permanent magnet 7 be shaped as the concentric circles arcuation,
Described balance mud 8 is bi-component epoxy class curing agent, becomes mouse cage type structure by the bonding rotor integral body that makes.
Described permanent magnet motor is characterized in that: be the concentric circles arcuation of average calibration at described permanent magnet 7, in the edge of arcuation chamfering 5～15 degree arranged.
Described permanent magnet motor is characterized in that: the edge of described permanent magnet 7 concentric circles arcuations is grown 1～5 millimeter in the chord length of the arc of close bonding plane than the chord length of another side arcuation.
The present invention also provides a kind of fixing means for preparing above-mentioned permanent magnet motor rotor magnet steel, it is characterized in that: specifically comprise
The step of the uncompleted permanent magnet motor that preparation is made of stator and rotor,
Make more than at least two described permanent magnet shape and the concentric circles arcuation of average calibration,
Each edge at concentric circles arcuation permanent magnet carries out chamfering, and guarantees to reach 1～5 millimeter being longer than an other arc chord length near the chord length of the arc of bonding plane,
Evenly be coated in balance mud around the permanent magnet permanent magnet around,
Curing by balance mud makes rotor and permanent magnet form a whole mouse cage type structure.
Described balance mud 8 is adhesively fixed permanent magnet 7 and yoke 1 by anaerobic adhesive.
The fixing means of described preparation permanent magnet motor rotor magnet steel, when described balance mud 8 is still uncured, do dynamic balancing, make rotor reach requirement for dynamic balance with adding material method (adding balance mud 8), and treat just to form holistic cage-shaped structure after all balance mud solidify.This shows that described fixing means and rotor dynamic balancing technics unite two into one.
Generally, the permanent magnet of being made by Nd-Fe-Bo permanent magnet material 7 is shaped as isocentric circular arc permanent magnet edge chamfering, the chord length of the arc of close bonding plane is longer than an other arc chord length, and at first permanent magnet 7 average calibration are to rotor yoke 1, and the average calibration is 6～12 parts; Secondly, utilize anaerobic adhesive to make permanent magnet 7 and rotor yoke 1 tentatively fixing; Use the balance mud 8 of bi-component epoxy class curing agent to be applied to uniformly around the permanent magnet 7 then, make all balance mud 8 form the cage-shaped structure that integral body is continuous.When balance mud 8 is uncured, rotor is done dynamic balancing, make rotor reach requirement for dynamic balance with adding material Fa-Jia balance mud 8.Treat promptly to form a unified rotor integral body after all balance mud 8 solidify.
The present invention only is described in detail with regard to a most preferred embodiment of the present invention; but can not be interpreted as restriction to other modes of the invention process; everyly further improve and similar or identical scheme on basis of the present invention, all being considered as is the scope that the present invention asks for protection.
Claims (3)
1, a kind of permanent magnet motor, comprise stator and rotor, wherein, rotor is made of rotor yoke, jump ring, bearing, axle, key, permanent magnet (7) and balance mud (8), described permanent magnet (7) be shaped as the concentric circles arcuation, described balance mud (8) is bi-component epoxy class curing agent; Described balance mud (8) utilizes anaerobic adhesive to make permanent magnet (7) and rotor yoke tentatively fixing, then described balance mud (8) is applied to permanent magnet (7) all around uniformly, wherein, when described balance mud (8) is still uncured, do dynamic balancing, make rotor reach requirement for dynamic balance by adding balance mud (8), and after treating that all balance mud (8) solidify, make rotor integral body become a mouse cage type structure.
2, permanent magnet motor according to claim 1, it is characterized in that: described permanent magnet (7) is the concentric circles arcuation of average calibration, there is chamfering 5-15 degree in edge at arcuation, and the circular-arc edge of described permanent magnet (7) is near the chord length of the arc of the bonding plane long 1-5 millimeter of chord length than another side arc.
3, a kind of fixing means of permanent magnet motor rotor permanent magnet, wherein, described permanent magnet motor according to claim 1, this method specifically comprises:
A. prepare the step of the uncompleted permanent magnet motor that constitutes by stator and rotor;
B. described permanent magnet (7) shape is made more than at least two and the concentric circles arcuation of average calibration;
C. carry out chamfering at each edge of permanent magnet (7), and guarantee that the circular-arc edge of described permanent magnet (7) is near the chord length of the arc of the bonding plane long 1-5 millimeter of chord length than another side arc;
D. utilize anaerobic adhesive to make permanent magnet (7) and rotor yoke tentatively fixing, then described balance mud (8) is applied to permanent magnet (7) all around uniformly;
E. when described balance mud (8) is still uncured, do dynamic balancing, make rotor reach requirement for dynamic balance by adding balance mud (8), and after treating that all balance mud (8) solidify, make rotor integral body become a mouse cage type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710071174A CN100589309C (en) | 2007-09-24 | 2007-09-24 | Permanent-magnet motor and method of fixing rotor magnetic steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710071174A CN100589309C (en) | 2007-09-24 | 2007-09-24 | Permanent-magnet motor and method of fixing rotor magnetic steel |
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| Publication Number | Publication Date |
|---|---|
| CN101159392A CN101159392A (en) | 2008-04-09 |
| CN100589309C true CN100589309C (en) | 2010-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710071174A Active CN100589309C (en) | 2007-09-24 | 2007-09-24 | Permanent-magnet motor and method of fixing rotor magnetic steel |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035316B (en) * | 2009-09-27 | 2015-07-08 | 天津市松正电动汽车技术股份有限公司 | Sticking mode for convex rotor core magnetic steel of permanent magnet synchronous motor |
| CN104319923B (en) * | 2014-07-31 | 2018-10-26 | 深圳市大疆创新科技有限公司 | Rotor uses the dynamic balance calibrating method of the brushless motor of the rotor and the rotor |
| CN106487171B (en) * | 2016-10-19 | 2019-07-12 | 珠海格力电器股份有限公司 | A kind of fixing means of magnet steel, rotor assembly and motor |
| CN108183566A (en) * | 2017-12-19 | 2018-06-19 | 宁波安信数控技术有限公司 | A kind of low inertia rotor of magneto |
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- 2007-09-24 CN CN200710071174A patent/CN100589309C/en active Active
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| CN101159392A (en) | 2008-04-09 |
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