CN102510180A - Method for manufacturing squirrel cage induction motor rotor - Google Patents
Method for manufacturing squirrel cage induction motor rotor Download PDFInfo
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- CN102510180A CN102510180A CN2011103441322A CN201110344132A CN102510180A CN 102510180 A CN102510180 A CN 102510180A CN 2011103441322 A CN2011103441322 A CN 2011103441322A CN 201110344132 A CN201110344132 A CN 201110344132A CN 102510180 A CN102510180 A CN 102510180A
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- copper lead
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Abstract
The invention discloses a method for manufacturing a squirrel cage induction motor rotor. The method comprises the steps of punching, thermally treating, laminating, coating, winding, melting aluminium, die-casting or casting-penetrating. A manufactured rotor conductor layer is formed by compounding a pure copper conductor wire and a pure aluminium conductor; furthermore, the volume of the pure copper conductor wire is 15-25% of the total volume of a pure copper conductor wire and pure aluminium conductor compounded conductor. The disadvantages of pure aluminium or pure copper and manufacture of a rotor conductor by adopting copper powder and aluminium powder in the prior art are overcome by the method disclosed by the invention. Compared with the motor with the pure aluminium rotor, the squirrel cage induction motor rotor has the advantage of increasing the operation efficiency by 1.5-2%, is close to a pure copper rotor; furthermore, the pure copper is low in use amount and cost.
Description
Technical field
The present invention relates to the motor manufacturing technology field, particularly a kind of preparation method of cage type induction motor rotor.
Background technology
The rotor of existing motor all is fine aluminium rotor or fine copper rotor.When the rotor of existing motor is made, earlier solid-state aluminium or copper are molten into liquid state, will be molten into liquid aluminium or copper again and inject in the die cavity of rotor mould, treat again the rotor finished product to be taken out after its solidifying and setting.
Because the cost of aluminium is lower than copper, so prior motor all is partial to adopt the fine aluminium rotor usually.
But in order to improve the performance of cage type induction motor, the resistance of rotor conductor must be little.Owing to the conductance of the aluminium that is applicable to said rotor conductor is limited, so the problem that has caused the induction machine characteristic to reduce.And the fine copper rotor is compared the fine aluminium rotor and can the operating efficiency of motor be improved, but because the copper cost is high, fusion temperature is also high, and therefore, the cost of raw material and manufacturing cost all are higher than cast-aluminum rotor, and also complicacy of production process.Cause in actual production, being difficult to accept or reject the balance of the two.
Publication number is the rotor that the patent application of CN1452293A discloses a kind of cage type induction motor; Comprise rotor core, rotor conductor and end ring; Rotor core is to form by having the steel plate stack that has a plurality of rotor at interval radiation; And the rotor of said steel plate alignd along direction of principal axis, it is characterized in that aluminium die casting that the method for rotor conductor through die casting will be mixed with copper powders may is in said rotor; End ring on the two ends of said rotor core is to be processed by the aluminium powder die casting that is mixed with copper powders may.Though its intention is to get the two advantage of copper and aluminium, it adopts the way by the powder of two kinds of materials not solve its technical problem, because; Adopt the way of powder, if the quantity of copper powders may is few, it is in the state of " isolating " in aluminum substrate; Be difficult to be effective; If the shared ratio of copper powders may is big, then increased the cost of making again, and the inhomogeneity problem that powder is arranged that adopts the method for powder thereupon to bring.
Summary of the invention
To the deficiency of prior art, one of the object of the invention is to provide a kind of preparation method of cage type induction motor rotor, in the hope of fine aluminium or fine copper in the solution prior art, and adopts copper powder and aluminium powder to prepare the defective of rotor conductor.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following:
A kind of preparation method of rotor of cage type induction motor, said method comprises the following steps:
1) punching press: utilize diel that silicon steel plate is stamped out and be pressed into mouth and rotor;
2) heat treatment: the steel plate for after the punching press is heat-treated, and recovers electrical characteristics simultaneously to eliminate mechanical stress;
3) lamination: rotor is alignd along direction of principal axis, make rotor core;
4) coating: fine copper lead outside is applied the Ni coating;
5) twine: the copper conductor that will be coated with the Ni coating twines along direction of principal axis in rotor, and the fine copper lead extends to behind the end ring position at two ends around to another rotor, is enclosed on the rotor core thereby the fine copper lead is formed network structure;
6) molten aluminium, with the fine aluminium fusing of making the rotor conductor layer, and refining;
7) die casting or casting are oozed: by common process the fine aluminium conductor is oozed in the motor rotor die-casting or the casting that are wound with the fine copper lead; Wherein, control the twining amount of described fine copper lead, and the die casting of fine aluminium conductor or the casting amount of oozing, make the fine copper lead account for the 15-25% of fine copper lead and fine aluminium conductor composite conductor overall volume.
Beneficial effect of the present invention is:
Overcome fine aluminium or fine copper in the prior art, and adopted copper powder and aluminium powder to prepare the defective of rotor conductor.Compare the motor of fine aluminium rotor, operating efficiency improves 1.5-2%, near the rotor of fine copper.And the consumption of fine copper is few, and cost is low.
Description of drawings
Fig. 1 is a cage type induction motor rotor of the present invention, and among the figure, 1 is armature spindle, and 2 is the cast aluminium conductor, 3 fine copper leads for signal, and 4 is end ring.
Below in conjunction with specific embodiment the present invention is further specified.
Embodiment
Embodiment one
A kind of preparation method of rotor of cage type induction motor, said method comprises the following steps:
1) punching press: utilize diel that silicon steel plate is stamped out and be pressed into mouth and rotor;
2) heat treatment: the steel plate for after the punching press is heat-treated, and recovers electrical characteristics simultaneously to eliminate mechanical stress;
3) lamination: rotor is alignd along direction of principal axis, make rotor core;
4) coating: fine copper lead outside is applied the Ni coating;
5) twine: the copper conductor that will be coated with the Ni coating twines along direction of principal axis in rotor, and the fine copper lead extends to behind the end ring position at two ends around to another rotor, is enclosed on the rotor core thereby the fine copper lead is formed network structure;
6) molten aluminium, with the fine aluminium fusing of making the rotor conductor layer, and refining;
7) die casting or casting are oozed: by common process the fine aluminium conductor is oozed in the motor rotor die-casting or the casting that are wound with the fine copper lead; Wherein, control the twining amount of described fine copper lead, and the die casting of fine aluminium conductor or the casting amount of oozing, make the fine copper lead account for 15% of fine copper lead and fine aluminium conductor composite conductor overall volume.
Embodiment two
A kind of preparation method of rotor of cage type induction motor, said method comprises the following steps:
1) punching press: utilize diel that silicon steel plate is stamped out and be pressed into mouth and rotor;
2) heat treatment: the steel plate for after the punching press is heat-treated, and recovers electrical characteristics simultaneously to eliminate mechanical stress;
3) lamination: rotor is alignd along direction of principal axis, make rotor core;
4) coating: fine copper lead outside is applied the Ni coating;
5) twine: the copper conductor that will be coated with the Ni coating twines along direction of principal axis in rotor, and the fine copper lead extends to behind the end ring position at two ends around to another rotor, is enclosed on the rotor core thereby the fine copper lead is formed network structure;
6) molten aluminium, with the fine aluminium fusing of making the rotor conductor layer, and refining;
7) die casting or casting are oozed: by common process the fine aluminium conductor is oozed in the motor rotor die-casting or the casting that are wound with the fine copper lead; Wherein, control the twining amount of described fine copper lead, and the die casting of fine aluminium conductor or the casting amount of oozing, make the fine copper lead account for 25% of fine copper lead and fine aluminium conductor composite conductor overall volume.
Embodiment three
A kind of preparation method of rotor of cage type induction motor, said method comprises the following steps:
1) punching press: utilize diel that silicon steel plate is stamped out and be pressed into mouth and rotor;
2) heat treatment: the steel plate for after the punching press is heat-treated, and recovers electrical characteristics simultaneously to eliminate mechanical stress;
3) lamination: rotor is alignd along direction of principal axis, make rotor core;
4) coating: fine copper lead outside is applied the Ni coating;
5) twine: the copper conductor that will be coated with the Ni coating twines along direction of principal axis in rotor, and the fine copper lead extends to behind the end ring position at two ends around to another rotor, is enclosed on the rotor core thereby the fine copper lead is formed network structure;
6) molten aluminium, with the fine aluminium fusing of making the rotor conductor layer, and refining;
7) die casting or casting are oozed: by common process the fine aluminium conductor is oozed in the motor rotor die-casting or the casting that are wound with the fine copper lead; Wherein, control the twining amount of described fine copper lead, and the die casting of fine aluminium conductor or the casting amount of oozing, make the fine copper lead account for 20% of fine copper lead and fine aluminium conductor composite conductor overall volume.
Applicant's statement; The present invention explains detailed process equipment of the present invention and technological process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technological process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technological process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and auxiliary element, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (2)
1. the preparation method of the rotor of a cage type induction motor, said method comprises the following steps:
1) punching press: utilize diel that silicon steel plate is stamped out and be pressed into mouth and rotor;
2) heat treatment: the steel plate for after the punching press is heat-treated, and recovers electrical characteristics simultaneously to eliminate mechanical stress;
3) lamination: rotor is alignd along direction of principal axis, make rotor core;
4) coating: fine copper lead outside is applied the Ni coating;
5) twine: the copper conductor that will be coated with the Ni coating twines along direction of principal axis in rotor, and the fine copper lead extends to behind the end ring position at two ends around to another rotor, is enclosed on the rotor core thereby the fine copper lead is formed network structure;
6) molten aluminium, with the fine aluminium fusing of making the rotor conductor layer, and refining;
7) die casting or casting are oozed: by common process the fine aluminium conductor is oozed in the motor rotor die-casting or the casting that are wound with the fine copper lead; Wherein, control the twining amount of described fine copper lead, and the die casting of fine aluminium conductor or the casting amount of oozing, make the fine copper lead account for the 15-25% of fine copper lead and fine aluminium conductor composite conductor overall volume.
2. the preparation method of the rotor of a kind of cage type induction motor as claimed in claim 1 is characterized in that, described fine copper lead accounts for 20% of the composite conductor overall volume that is made up of fine copper lead and fine aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103441322A CN102510180A (en) | 2011-11-03 | 2011-11-03 | Method for manufacturing squirrel cage induction motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103441322A CN102510180A (en) | 2011-11-03 | 2011-11-03 | Method for manufacturing squirrel cage induction motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102510180A true CN102510180A (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103441322A Pending CN102510180A (en) | 2011-11-03 | 2011-11-03 | Method for manufacturing squirrel cage induction motor rotor |
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| Country | Link |
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| CN (1) | CN102510180A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887934A (en) * | 2014-04-24 | 2014-06-25 | 洛阳轴研科技股份有限公司 | Finishing method of electric spindle squirrel cage rotor |
| CN104935122A (en) * | 2015-05-28 | 2015-09-23 | 含山县兴达球墨铸铁厂 | Preparation method for motor rotary core |
| CN107511469A (en) * | 2017-10-13 | 2017-12-26 | 安阳恒安电机有限公司 | A kind of squirrel cage motor rotor low pressure cast copper equipment, cast copper and its cast copper method |
| CN109004802A (en) * | 2018-09-14 | 2018-12-14 | 临安泰华机械设备有限公司 | A kind of rotor processing technique |
-
2011
- 2011-11-03 CN CN2011103441322A patent/CN102510180A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887934A (en) * | 2014-04-24 | 2014-06-25 | 洛阳轴研科技股份有限公司 | Finishing method of electric spindle squirrel cage rotor |
| CN103887934B (en) * | 2014-04-24 | 2016-08-17 | 洛阳轴研科技股份有限公司 | A kind of method for fine finishing of electro spindle cage rotor |
| CN104935122A (en) * | 2015-05-28 | 2015-09-23 | 含山县兴达球墨铸铁厂 | Preparation method for motor rotary core |
| CN107511469A (en) * | 2017-10-13 | 2017-12-26 | 安阳恒安电机有限公司 | A kind of squirrel cage motor rotor low pressure cast copper equipment, cast copper and its cast copper method |
| CN109004802A (en) * | 2018-09-14 | 2018-12-14 | 临安泰华机械设备有限公司 | A kind of rotor processing technique |
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Application publication date: 20120620 |