CN204361869U - A kind of rotor core structure with balance keyway - Google Patents
A kind of rotor core structure with balance keyway Download PDFInfo
- Publication number
- CN204361869U CN204361869U CN201420738384.2U CN201420738384U CN204361869U CN 204361869 U CN204361869 U CN 204361869U CN 201420738384 U CN201420738384 U CN 201420738384U CN 204361869 U CN204361869 U CN 204361869U
- Authority
- CN
- China
- Prior art keywords
- keyway
- balance
- rotor core
- rotating shaft
- rotor
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
With a rotor core structure for balance keyway, comprise the rotating shaft 1 of motor, rotor core 2, key 3 and corresponding keyway, balance keyway 4; Rotating shaft 1 is provided with keyway and balance keyway 4, rotor core 2 is sleeved in rotating shaft 1; Keyway is A type, and namely two is semicircle, and keyway gap is R to rotor axis distance
1, balance keyway is R to rotor axis distance
2, keyway clearance space volume is V
1, ρ is steel density, balance keyway spatial volume
the beneficial effects of the utility model are: structure is simply effective, greatly reduce the balance weight that the later stage need be welded with on rotor, improve the aesthetics of whole motor, decrease the workload of dynamic balance checking simultaneously, be applicable to extensive use aborning and promote.
Description
Technical field
The present invention relates to field of motor manufacturing, especially a kind of rotor core structure with balance keyway.
Background technology
The rotating shaft of the big-and-middle-sized high-voltage motor of existing major part, in order to coordinate with the large diameter of rotor core, all adopts the form of disc welding.In order to not allow the relative position of rotor core and rotating shaft produce radial deflection because of the rotation of rotating shaft, therefore the key of suitable length is installed between these.Keyseat in rotating shaft, simultaneously the keyway of also punching dimension on rotor punching, puts into key, solves the fixation problem of rotor core like this before rotor core sleeve.But owing to generally all leaving certain interval between keyway and key, just bring a part of amount of unbalance of rotor thus.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of rotor core structure of simple and easy effective band balance keyway, effectively reduces the rotor unbalance value brought by fitting key unshakable in one's determination.
With a rotor core structure for balance keyway, comprise the rotating shaft 1 of motor, rotor core 2, key 3 and corresponding keyway, balance keyway 4; Rotating shaft 1 is provided with keyway and balance keyway 4, rotor core 2 is sleeved in rotating shaft 1; Keyway is A type, and namely two is semicircle, and keyway gap is R to rotor axis distance
1, balance keyway is R to rotor axis distance
2, keyway clearance space volume is V
1, ρ is steel density, balance keyway spatial volume
Preferably, carry out interference fit by knocking embedding between key and keyway, keyway is consistent with rotor core length.
Beneficial effect of the present invention is: structure is simply effective, greatly reduces the balance weight that the later stage need be welded with on rotor, improves the aesthetics of whole motor, decrease the workload of dynamic balance checking simultaneously, be applicable to extensive use aborning and promote.
Accompanying drawing explanation
Fig. 1 is transverse cross sectional view of the present invention.
Fig. 2 is the partial enlarged drawing of transverse cross sectional view of the present invention.
Fig. 3 is longitudinal cross section of the present invention.
Embodiment
As shown in Figure 1, 2, 3, a kind of rotor core structure with balance keyway, comprises the rotating shaft 1 of motor, rotor core 2, key 3 and corresponding keyway, balance keyway 4; Rotating shaft 1 is provided with keyway and balance keyway 4, rotor core 2 is sleeved in rotating shaft 1; Keyway is A type, and namely two is semicircle, and keyway gap is R to rotor axis distance
1, balance keyway is R to rotor axis distance
2, keyway clearance space volume is V
1, ρ is steel density, balance keyway spatial volume
Keyway is general consistent with rotor core length, and width is selected according to internal diameter size unshakable in one's determination.Interference fit is carried out by slightly knocking embedding between key and keyway.
Although the present invention illustrates with regard to preferred implementation and describes, only it will be understood by those of skill in the art that otherwise exceed claim limited range of the present invention, variations and modifications can be carried out to the present invention.
Claims (2)
1. the rotor core structure with balance keyway, comprises the rotating shaft (1) of motor, rotor core (2), key (3) and corresponding keyway, balance keyway (4); Rotating shaft (1) is provided with keyway and balance keyway (4), rotor core (2) is sleeved in rotating shaft (1); It is characterized in that, keyway is A type, and namely two is semicircle, and keyway gap is R to rotor axis distance
1, balance keyway is R to rotor axis distance
2, keyway clearance space volume is V
1, ρ is steel density, balance keyway spatial volume
2. rotor core structure as claimed in claim 1, it is characterized in that, carry out interference fit by knocking embedding between key and keyway, keyway is consistent with rotor core length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738384.2U CN204361869U (en) | 2014-11-27 | 2014-11-27 | A kind of rotor core structure with balance keyway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738384.2U CN204361869U (en) | 2014-11-27 | 2014-11-27 | A kind of rotor core structure with balance keyway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204361869U true CN204361869U (en) | 2015-05-27 |
Family
ID=53263315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420738384.2U Expired - Fee Related CN204361869U (en) | 2014-11-27 | 2014-11-27 | A kind of rotor core structure with balance keyway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204361869U (en) |
-
2014
- 2014-11-27 CN CN201420738384.2U patent/CN204361869U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 |