CN116191787A - Dynamic balance processing technology of outer rotor motor - Google Patents
Dynamic balance processing technology of outer rotor motor Download PDFInfo
- Publication number
- CN116191787A CN116191787A CN202211698250.8A CN202211698250A CN116191787A CN 116191787 A CN116191787 A CN 116191787A CN 202211698250 A CN202211698250 A CN 202211698250A CN 116191787 A CN116191787 A CN 116191787A
- Authority
- CN
- China
- Prior art keywords
- rotor
- outer rotor
- hole
- punching
- dynamic balance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
- H02K15/165—Balancing the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
A dynamic balance processing technology of an external rotor motor comprises the following steps: A. respectively punching a pilot hole, a round hole and an internal stator for counting; B. punching an outer rotor groove shape; C. punching shaft holes, lightening holes, inner stator overlapping riveting and outer rotor counting respectively; D. punching an outer rotor groove shape; E. cutting an air gap; F. punching an outer rotor stack rivet and a central hole; G. blanking by punching an outer rotor; H. cutting off the waste material to obtain a semi-finished product; I. and casting aluminum on the semi-finished product by a horizontal die casting technology to obtain the finished product. According to the invention, the rotor core mold is designed by adopting a unilateral 0.2mm air gap, the rotor mold is designed by adopting horizontal die casting aluminum, and when the outer rotor groove is punched, the slotted hole is firstly punched, and then the slotted hole is punched, so that the stress of the rotor disappears in the die casting process, the rotor is not deformed, the good concentricity (the concentricity is less than 5C) of the rotor is ensured, the cast aluminum is full, the anti-collision performance of the rotor is improved, the density of the rotor is higher, the aluminum component proportion of the rotor is high, the resistance is reduced, and the energy efficiency and the electric efficiency of the rotor are improved.
Description
Technical Field
The invention relates to the technical field of outer rotor machining, in particular to a dynamic balance machining process of an outer rotor motor.
Background
Chinese patent document No. CN113333709a discloses a centrifugal casting method of a conductor rotor in 20121, 9 and 3, in which a centrifugal casting process is adopted to manufacture the conductor rotor, and the conductor rotor is processed through smelting, centrifugal forming, shutdown cooling, machining and other steps; heating the raw material of the conductor ring to T1 ℃ for smelting, and completely smelting the raw material into a liquid state; preheating a conductor cylinder to T2 ℃ and keeping the temperature constant, pouring the melted liquid raw material of the conductor ring into the conductor cylinder, starting a centrifugal machine to drive the conductor cylinder to rotate, and uniformly distributing the liquid raw material of the conductor ring on the inner circumferential surface of the conductor cylinder by utilizing the centrifugal force of the conductor cylinder; after the temperature of the conductor cylinder is reduced to T2 ℃, the centrifuge continues to rotate for 10 minutes, and then the machine is stopped to take down the conductor cylinder and cool to normal temperature; the conductor ring and the conductor barrel are machined to form a unitary conductor rotor. The stamping die of the rotor core of the centrifugal casting method of the conductor rotor is a design technology without an air gap, and the rotor die casting die adopts centrifugal die casting (adopting a vertical centrifugal machine for die casting, and aluminum is injected into a rotor slot hole), so that the rotor is deformed, the concentricity is poor (the concentricity is 20-30C), and the cast aluminum is not full, and the dynamic balance of the rotor is poor.
Therefore, further improvements are needed.
Disclosure of Invention
The invention aims to provide a dynamic balance processing technology of an external rotor motor, which ensures that a rotor is not deformed, the concentricity of the rotor is good, cast aluminum is full, the dynamic balance of the rotor is good and the practicability is strong, so as to overcome the defects in the prior art.
The dynamic balance processing technology of the outer rotor motor designed according to the purpose is characterized in that: the method comprises the following steps:
A. respectively punching a pilot hole, a round hole and an internal stator for counting;
B. punching an outer rotor groove shape;
C. punching shaft holes, lightening holes, inner stator overlapping riveting and outer rotor counting respectively;
D. punching an outer rotor groove shape;
E. cutting an air gap;
F. punching an outer rotor stack rivet and a central hole;
G. blanking by punching an outer rotor;
H. cutting off the waste material to obtain a semi-finished product;
I. and casting aluminum on the semi-finished product by a horizontal die casting technology to obtain the finished product.
In the step D, when the outer rotor groove is punched, the groove hole is punched first, then the groove hole is punched, and the air gap is in butt joint with the groove hole.
In the step I, cast aluminum is sequentially injected into the semi-finished product through the air gap, the notch and the slotted hole.
In step E, the thickness of the air gap is a, a=0.15 to 0.25mm.
In the step B, the outer rotor groove comprises a special-shaped short hole and a special-shaped long hole.
In the step D, when the outer rotor groove is punched, one half groove is punched first, and the other half groove is punched.
The stamping in the step A, the step B and the step C is controlled by a cylinder pumping plate.
The stamping in the step G drives the skew through a stepping motor.
In step I, the scrap is cut to form a scrap, the scrap having a thickness b, b=1.5 to 2mm.
According to the invention, the rotor iron core mold is designed by adopting a unilateral 0.2mm air gap, the rotor mold is designed by adopting horizontal die casting aluminum, and when the outer rotor groove is punched, the groove hole is firstly punched, and then the groove hole is punched, so that the stress of the rotor disappears in the die casting process, the rotor is not deformed, the good concentricity (the concentricity is less than 5C) of the rotor is ensured, the cast aluminum is full, the anti-collision performance of the rotor is improved, the density of the rotor is higher, the proportion of aluminum components of the rotor is high, the resistance is reduced, the energy efficiency and the electric efficiency (electricity saving) of the rotor are improved, and the production loss is less.
Drawings
Fig. 1 is a schematic diagram of a dynamic balance processing technique of an outer rotor motor according to an embodiment of the invention.
Fig. 2 is an enlarged schematic view of the structure at c in fig. 1.
Fig. 3 is an enlarged schematic view of the structure at d in fig. 1.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1-3, the plate of fig. 1 is a mold, and the dynamic balance processing technology of the outer rotor motor comprises the following steps:
A. respectively punching a pilot hole 1, a round hole 2 and an internal stator for counting;
B. punching an outer rotor groove shape;
C. respectively punching a shaft hole 3, a lightening hole 4, an inner stator stack rivet 5 and an outer rotor for counting;
D. punching an outer rotor groove shape;
E. cutting an air gap 6;
F. punching an outer rotor overlapped rivet 7 and a central hole 8;
G. punching an outer rotor blanking 9;
H. cutting off the waste material to obtain a semi-finished product;
I. and casting aluminum on the semi-finished product by a horizontal die casting technology to obtain a rotor finished product.
In the step D, when the outer rotor groove is punched, the groove hole 10 is firstly punched, the groove hole 11 is then punched, the air gap 6 is in butt joint with the groove hole 11, the step is the key of stress disappearance in the rotor die casting process, and the prior art is that the groove hole 10 and the groove hole 11 are simultaneously punched and formed, so that the stress in the rotor die casting process is large.
In the step I, cast aluminum is injected into the semi-finished product sequentially through the air gap 6, the notch 11 and the slotted hole 10, and the semi-finished product is cast aluminum through the design of the air gap 6 and the horizontal die casting technology, so that the cast aluminum is full.
In step E, the thickness of the air gap 6 is a, a=0.2 mm.
In step B, the outer rotor groove comprises a profiled short hole 12 and a profiled long hole 13.
In the step D, when the outer rotor groove is punched, one half groove is punched first, and the other half groove is punched.
The stamping in the step A, the step B and the step C is controlled by a cylinder pumping plate.
The stamping in the step G drives the skew through a stepping motor.
In step I, scrap is cut to form a scrap 14, the scrap 14 having a thickness b, b=1.5 mm, and a die step e, e=195.5 mm.
The foregoing is a preferred embodiment of the invention showing and describing the general principles, features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A dynamic balance processing technology of an external rotor motor is characterized in that: the method comprises the following steps:
A. respectively punching a pilot hole (1), a round hole (2) and an internal stator for counting;
B. punching an outer rotor groove shape;
C. respectively punching a shaft hole (3), a lightening hole (4), an inner stator overlapped rivet (5) and an outer rotor for counting;
D. punching an outer rotor groove shape;
E. cutting an air gap (6);
F. punching an outer rotor overlapped rivet (7) and a central hole (8);
G. blanking (9) of the outer rotor;
H. cutting off the waste material to obtain a semi-finished product;
I. and casting aluminum on the semi-finished product by a horizontal die casting technology to obtain the finished product.
2. The external rotor motor dynamic balance processing technique according to claim 1, wherein: in the step D, when the outer rotor groove is punched, the groove hole (10) is punched first, the groove hole (11) is punched again, and the air gap (6) is in butt joint with the groove hole (11).
3. The external rotor motor dynamic balance processing technique according to claim 1, wherein: in the step I, cast aluminum is sequentially injected into the semi-finished product through the air gap (6), the notch (11) and the notch (10).
4. The external rotor motor dynamic balance processing technique according to claim 1, wherein: in step E, the thickness of the air gap (6) is a, a=0.15 to 0.25mm.
5. The external rotor motor dynamic balance processing technique according to claim 1, wherein: in the step B, the outer rotor groove comprises a special-shaped short hole (12) and a special-shaped long hole (13).
6. The external rotor motor dynamic balance processing technique according to claim 1, wherein: in the step D, when the outer rotor groove is punched, one half groove is punched first, and the other half groove is punched.
7. The external rotor motor dynamic balance processing technique according to claim 1, wherein: the stamping in the step A, the step B and the step C is controlled by a cylinder pumping plate.
8. The external rotor motor dynamic balance processing technique according to claim 1, wherein: the stamping in the step G drives the skew through a stepping motor.
9. The external rotor motor dynamic balance processing technique according to claim 1, wherein: in step I, a scrap is cut to form a scrap (14), and the scrap (14) has a thickness b, b=1.5 to 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211698250.8A CN116191787A (en) | 2022-12-28 | 2022-12-28 | Dynamic balance processing technology of outer rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211698250.8A CN116191787A (en) | 2022-12-28 | 2022-12-28 | Dynamic balance processing technology of outer rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116191787A true CN116191787A (en) | 2023-05-30 |
Family
ID=86445353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211698250.8A Pending CN116191787A (en) | 2022-12-28 | 2022-12-28 | Dynamic balance processing technology of outer rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116191787A (en) |
-
2022
- 2022-12-28 CN CN202211698250.8A patent/CN116191787A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103312068B (en) | A kind of energy-saving servo motor | |
| WO2015151362A1 (en) | Squirrel-cage motor rotor and squirrel-cage motor | |
| JP2008199831A (en) | Motor manufacturing method, and motor, compressor and vehicle using the manufacturing method | |
| WO2019064630A1 (en) | Radial-gap-type rotary electric machine, and production device and production method for same | |
| CN104588480B (en) | Machining method for motor blanking piece | |
| CN107534371B (en) | Motor rotor | |
| CN101633018A (en) | Punching processing technology of motor stator and rotor laminations | |
| JP2014195374A (en) | Rotary electric machine and manufacturing method therefor | |
| AU2014201466B2 (en) | Induction Motor and Manufacturing Method Thereof | |
| CN112072810A (en) | Copper-aluminum composite rotor, aluminum casting mold and manufacturing method thereof | |
| JP5287917B2 (en) | Manufacturing method of rotor core of rotating electrical machine | |
| CN116191787A (en) | Dynamic balance processing technology of outer rotor motor | |
| JP5484130B2 (en) | Manufacturing method and manufacturing apparatus of laminated iron core | |
| EP3046224A1 (en) | Method of manufacturing the rotor assembly for an electric motor | |
| CN110476337B (en) | Hybrid squirrel cage rotor | |
| CN215870950U (en) | Large-scale high-speed asynchronous motor rotor | |
| CN213637260U (en) | Motor rotor end plate and motor rotor | |
| JP5536493B2 (en) | Manufacturing method and manufacturing apparatus of laminated iron core | |
| JP2000050579A (en) | Manufacture of motor core | |
| CN111371214A (en) | Claw pole hot forging and finished claw pole manufacturing process based on claw pole hot forging | |
| CN203398893U (en) | Energy-saving servo motor | |
| KR100434289B1 (en) | rotor of squirrel cage induction motor | |
| CN110445320B (en) | Stator and rotor air gap punching method suitable for personalized customization and flexible production | |
| KR20200131386A (en) | Vacuum Brazing Method for Rotor of Motor | |
| JP3544114B2 (en) | Manufacturing method of stepping motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |