CN102780332A - Method for fixing magnetic steel of rotor of permanent motor - Google Patents
Method for fixing magnetic steel of rotor of permanent motor Download PDFInfo
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- CN102780332A CN102780332A CN201210248391XA CN201210248391A CN102780332A CN 102780332 A CN102780332 A CN 102780332A CN 201210248391X A CN201210248391X A CN 201210248391XA CN 201210248391 A CN201210248391 A CN 201210248391A CN 102780332 A CN102780332 A CN 102780332A
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- rotor
- magnet steel
- end cover
- shell
- permanent
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Abstract
The invention discloses a method for fixing a magnetic steel of a rotor of a permanent motor. The method comprises the following steps: a. pre-adhering the magnetic steel with the rotor, wherein the rotor and the magnetic steel are prepared, arranged in accordance with the polarity of the magnetic steel, and are pre-adhered and dried for later use; b. manufacturing a machining casting mold for fixing the rotor which is subjected to the drying treatment in the step a and adhered with the magnetic steel; c. preparing an epoxy filler; d. coating a releasing agent, wherein the releasing agent is uniformly coated on the inner surface of the casting mold; e. fixing the rotor adhered with the magnetic steel and casting the epoxy filler, wherein the rotor which is subjected to the drying treatment in the step a and which is adhered with the magnetic steel is fixed inside the casting mold, and the casting of the epoxy filler is carried out; and f. demolding, wherein the step of demolding is carried out 12 hours later after the step e in which the epoxy filler is cast. The method has the advantages that the adhesion force is strong, the adhesion is firm, the service life of the motor can be prolonged effectively, the magnet is unlikely to drop off, and the effects of energy conservation and environment-friendliness are good, and the like.
Description
Technical field
The present invention relates to a kind of permanent-magnetic electric machine rotor magnet steel fixing means.
Background technology
In recent years, along with the fast development of power electronic technology, microelectric technique, New-type electric machine control theory and rare earth permanent-magnetic material, permanent magnet synchronous motor is able to apply rapidly.Permanent magnet synchronous motor has that volume is little, and loss is low, and the efficient advantages of higher comes into one's own in energy savings and environmental protection day by day.
Magneto adopts permanent magnet to generate the magnetic field of motor, need not magnet exciting coil and also need not exciting current, and efficient is high, and is simple in structure.It is good energy-saving electric machine.Along with the development of the permanent magnet of high energy, magneto has obtained extensive use at present.
Usually said permanent magnet synchronous motor is the sine wave permanent magnet synchronous motor; The same with general synchronous motor; The stator winding of sinusoidal wave PMSM adopts three symmetrical Sine distribution windings usually, or the permanent magnet that rotor adopts special shape is to go reporting air gap flux density to be Sine distribution along the space.Like this, when the motor constant-speed operation, the electromotive force that three-phase stator winding is responded to then for sinusoidal wave, gain the name therefrom by the sine wave permanent magnet synchronous motor.
In the permanent magnet synchronous motor rotor magnetic steel fixing means, brshless DC motor uses the method for paster that magnet is fixed on the rotor core usually.Tie up magnetic sheet with nonwoven fabrics after flat thin magnet posts and on rotor, brush glue fixing again.
When mounted, usually permanent-magnet steel according to certain rules, certain program sticks on the rotor cylindrical rotor, such as; (N, the S) utmost point are pressed certain angle (on the rotor axis) by motor length, number of poles; Stick on the rotor, secondly, when preventing the rotor fast rotational; Centrifugal force makes magnet steel break away from rotor block, or it is not enough and throw away to paste the adherence force of glue, causes motor to damage.
Traditional method: be fixed on rotor tip with stainless steel wire one end, tie magnet steel around cylinder then, apply epoxy glue on it and fix, treat that epoxy glue curing promptly forms stainless steel colligation layer after air-dry.
Another kind method:, be fixed on the method for magnet on the rotor core with bonding with nonwoven fabric belts coated with high temperature adhesive glue.
There is more deficiency in above two kinds of methods of the prior art, and are strong inadequately as causing cohesive force easily, are prone to come off, and interior thorax of easy generation stator and rotor are swept thorax and caused motor to damage.
Summary of the invention
Seeing that the existing cohesive force that causes easily of permanent-magnetic electric machine rotor magnet steel fixing means of the prior art is strong inadequately; Be prone to come off; Be prone to stator in thorax sweep thorax, influence magneto useful life, cause resource waste, be unfavorable for the deficiency of aspects such as energy-conserving and environment-protective.The object of the present invention is to provide a kind of cohesive force strong, paste firmly, difficult drop-off, the permanent-magnetic electric machine rotor magnet steel fixing means that can effectively prolong motor useful life, effects of energy conservation and environmental protection is good.
In order to achieve the above object, the technical scheme that the present invention taked is following:
A kind of permanent-magnetic electric machine rotor magnet steel fixing means, said permanent-magnetic electric machine rotor magnet steel fixing means comprises the steps:
A, magnet steel and rotor are pasted in advance, are ready to rotor and magnet steel, and said magnet steel and rotor are arranged by the polarity of magnet steel and pasted in advance, and it is for use that the rotor that is stained with magnet steel carries out dried;
B, preparation processing casting die, said processing casting die is used for fixing the said rotor that is stained with magnet steel through step a dried;
C, preparation epoxy filler, said epoxy filler is the fine mixture of epoxide-resin glue, diethylenetriamines and interior alkene (afterwards both synthesized solidified dose);
D, coating release agent are with stating the inner surface that release agent evenly is coated on said casting die;
E, fixedly be stained with the rotor of magnet steel and the epoxy filler of casting; The said rotor that is stained with magnet steel through step a dried is fixed in the said casting die and adds epoxy filler cast after curing agent mixes; Fill up all spaces in the mould; Can open end cap, mold removal after 12 hours.
Casting complete.
F, molding, the step of said molding was carried out after behind the said step e casting epoxy filler 12 hours.
According to above-mentioned design of the present invention, said casting die comprises: shell, said shell are a cylindrical body; Upper end cover, said upper end cover is connected to the upper surface of said shell, and the centre is formed with a upper end cover through hole therein, and said upper end cover through hole is used for fixing and is connected said epitrochanterian motor shaft; Bottom end cover, the separable lower surface that is connected to said shell of said bottom end cover, and form a bottom end cover through hole in the central authorities of said bottom end cover, the bottom end cover through hole is used for fixing and is connected said epitrochanterian motor shaft; Said bottom end cover is connected on the shell wall of said shell through set bolt; The inwall of said shell and the gap of rotor are 0.2mm.
According to above-mentioned design of the present invention, in the said epoxy filler, described epoxy resin ratio is 70%, and the ratio of said diethylenetriamines is 20%, and the ratio that said propylene is fine is 10%.
According to above-mentioned design of the present invention, the thickness degree of said epoxy filler is more than 200 orders.
According to above-mentioned design of the present invention, said release agent is a glyceride.
According to above-mentioned design of the present invention, said release agent evenly is coated on the inwall of said shell, upper end cover and bottom end cover.
Beneficial effect of the present invention is: it is strong to have cohesive force, pastes firmly, difficult drop-off, advantage such as can effectively prolong motor useful life, effects of energy conservation and environmental protection is good.
Description of drawings
Fig. 1 is the cross section structure sketch map of casting die of the present invention.
Embodiment
Below in conjunction with embodiment the present invention is elaborated.
A kind of permanent-magnetic electric machine rotor magnet steel fixing means, said permanent-magnetic electric machine rotor magnet steel fixing means comprises the steps:
A, magnet steel and rotor are pasted in advance, are ready to rotor and magnet steel, and said magnet steel and rotor are arranged by the polarity of magnet steel and pasted in advance, and it is for use that the rotor that is stained with magnet steel carries out dried;
B, preparation processing casting die, said processing casting die is used for fixing the said rotor that is stained with magnet steel through step a dried;
C, preparation epoxy filler, said epoxy filler is epoxy glue, diethylenetriamines and the fine mixture of interior alkene; Its part by weight is: 70:20:10.
D, coating release agent are with stating the inner surface that release agent evenly is coated on said casting die;
E, fixedly be stained with the rotor of magnet steel and the epoxy filler of casting, the said rotor that is stained with magnet steel through step a dried is fixed in the said casting die and carries out the casting of epoxy filler;
F, molding, the step of said molding was carried out after behind the said step e casting epoxy filler 12 hours.
As shown in Figure 1, according to above-mentioned design of the present invention, said casting die comprises: a shell 1, and said shell 1 is a cylindrical body; One upper end cover 2, said upper end cover 2 is connected to the upper surface of said shell 1, and the centre is formed with a upper end cover through hole 21 therein, and said upper end cover through hole 21 is used for fixing the motor shaft 101 that is connected on the said rotor 10; One bottom end cover 3, the said bottom end cover 3 separable lower surfaces that are connected to said shell 1, and form a bottom end cover through hole 31 in the central authorities of said bottom end cover 3, bottom end cover through hole 31 is used for fixing the motor shaft 101 that is connected on the said rotor 10; Said bottom end cover 3 is connected on the shell wall of said shell 1 through set bolt 4; The said rotor 0.2mm of inwall distance of said shell 1.
According to above-mentioned design of the present invention, in the said epoxy filler, the ratio of said epoxy glue is 70%, the ratio of diethylenetriamines is 20%, said in the fine ratio of alkene be 10%.
According to above-mentioned design of the present invention, the thickness degree of said epoxy filler is more than 200 orders.
According to above-mentioned design of the present invention, said release agent is an acetone.
According to above-mentioned design of the present invention, said release agent evenly is coated on the inwall of said shell 1, upper end cover 2 and bottom end cover 3.
Beneficial effect of the present invention is: it is strong to have cohesive force, pastes firmly, difficult drop-off, advantage such as can effectively prolong motor useful life, effects of energy conservation and environmental protection is good.
Disclosed content; Be to be preferred embodiment; In every case partial alteration, variation; Or to the modification of disclosed technology contents, and come from technological thought of the present invention and do not add by the people that has the knack of this skill that creative thinking is easy to know by inference, neither disengaging patent right category of the present invention.
Claims (6)
1. permanent-magnetic electric machine rotor magnet steel fixing means is characterized in that:
Said permanent-magnetic electric machine rotor magnet steel fixing means comprises the steps:
A, magnet steel and rotor are pasted in advance, are ready to rotor and magnet steel, and said magnet steel and rotor are arranged by the polarity of magnet steel and pasted in advance, and the rotor that is pasted with magnet steel carries out cleaning-drying and handles for use;
B, preparation processing casting die, said processing casting die are used for fixing said after step a dried and be stained with the rotor of magnet steel;
C, preparation epoxy filler, said epoxy filler is epoxide-resin glue, diethylenetriamines and the fine compound of interior alkene;
D, coating release agent are with stating the inner surface that release agent evenly is coated on said casting die;
E, fixedly be stained with the rotor of magnet steel and the epoxy filler of casting, the said rotor that is stained with magnet steel through step a dried is fixed in the said casting die and carries out the casting of epoxy filler;
F, molding, the step of said molding should be carried out after behind the said step e casting epoxy filler 12 hours.
2. permanent-magnetic electric machine rotor magnet steel fixing means according to claim 1 is characterized in that:
Said casting die comprises:
Shell, said shell are a cylindrical body;
Upper end cover, said upper end cover is connected to the upper surface of said shell, and the centre is formed with the through hole of upper end cover therein, and said upper end cover through hole is used for fixing and is connected said epitrochanterian motor shaft;
Bottom end cover, the separable lower surface that is connected to said shell of said bottom end cover, and form a bottom end cover through hole in the central authorities of said bottom end cover, the bottom end cover through hole is used for fixing and is connected said epitrochanterian motor shaft;
Said upper end cover, bottom end cover are connected on the shell wall of said shell through set bolt;
Said shell with said rotor clearance be 0.4mm.
3. permanent-magnetic electric machine rotor magnet steel fixing means according to claim 2 is characterized in that:
In the said epoxy filler, said epoxy glue ratio is 70%, the ratio of diethylenetriamines is 20%, said in the fine ratio of alkene be 10%.
4. permanent-magnetic electric machine rotor magnet steel fixing means according to claim 2 is characterized in that:
The thickness degree of said epoxy filler is more than 200 orders.
5. permanent-magnetic electric machine rotor magnet steel fixing means according to claim 2 is characterized in that:
Said release agent is a glyceride.
6. permanent-magnetic electric machine rotor magnet steel fixing means according to claim 2 is characterized in that:
Said release agent evenly is coated on the inwall of said shell, upper end cover and bottom end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248391XA CN102780332A (en) | 2012-07-18 | 2012-07-18 | Method for fixing magnetic steel of rotor of permanent motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248391XA CN102780332A (en) | 2012-07-18 | 2012-07-18 | Method for fixing magnetic steel of rotor of permanent motor |
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| Publication Number | Publication Date |
|---|---|
| CN102780332A true CN102780332A (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210248391XA Pending CN102780332A (en) | 2012-07-18 | 2012-07-18 | Method for fixing magnetic steel of rotor of permanent motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485787A (en) * | 2014-12-15 | 2015-04-01 | 哈尔滨电气动力装备有限公司 | Magnetic steel fixing process of permanent magnet motor rotor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6154857A (en) * | 1984-08-27 | 1986-03-19 | Nippon Radiator Co Ltd | Manufacture of motor |
| CN1304831A (en) * | 2001-01-11 | 2001-07-25 | 宁波韵升强磁材料有限公司 | Injection part for adhering and pressing magnetic body and injection technology |
| CN1535495A (en) * | 2001-06-28 | 2004-10-06 | 西门子公司 | Cast secondary part for electric motors |
| US6891288B2 (en) * | 2001-04-27 | 2005-05-10 | Mitsubishi Denki Kabushiki Kaisha | Magneto-generator, method of manufacturing the same and resin molding die assembly for manufacturing the same |
| CN101159399A (en) * | 2006-09-20 | 2008-04-09 | 韦塞斯能量股份公司 | A method for fastening permanent magnet magnetic poles to the rotor of an electric machine |
-
2012
- 2012-07-18 CN CN201210248391XA patent/CN102780332A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6154857A (en) * | 1984-08-27 | 1986-03-19 | Nippon Radiator Co Ltd | Manufacture of motor |
| CN1304831A (en) * | 2001-01-11 | 2001-07-25 | 宁波韵升强磁材料有限公司 | Injection part for adhering and pressing magnetic body and injection technology |
| US6891288B2 (en) * | 2001-04-27 | 2005-05-10 | Mitsubishi Denki Kabushiki Kaisha | Magneto-generator, method of manufacturing the same and resin molding die assembly for manufacturing the same |
| CN1535495A (en) * | 2001-06-28 | 2004-10-06 | 西门子公司 | Cast secondary part for electric motors |
| CN101159399A (en) * | 2006-09-20 | 2008-04-09 | 韦塞斯能量股份公司 | A method for fastening permanent magnet magnetic poles to the rotor of an electric machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485787A (en) * | 2014-12-15 | 2015-04-01 | 哈尔滨电气动力装备有限公司 | Magnetic steel fixing process of permanent magnet motor rotor |
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Application publication date: 20121114 |