CN205414429U - Permanent magnetism synchronization electric main shaft structure of wedge air gap - Google Patents
Permanent magnetism synchronization electric main shaft structure of wedge air gap Download PDFInfo
- Publication number
- CN205414429U CN205414429U CN201620207542.0U CN201620207542U CN205414429U CN 205414429 U CN205414429 U CN 205414429U CN 201620207542 U CN201620207542 U CN 201620207542U CN 205414429 U CN205414429 U CN 205414429U
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- rotor
- air gap
- wedge shape
- permanent magnet
- stator
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- Expired - Fee Related
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- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a permanent magnetism synchronization electric main shaft structure of wedge air gap, this structure of includes rotor, stator and casing, and the mounting of rotors is on the step shaft, and the surface of rotor is the wedge, and inhomogeneous air gap is constituteed to the wedge surface and the stator of rotor, and the casing is installed on the stator. Adopt after the above scheme, the utility model discloses the permanent magnetism synchronization electric main shaft of wedge air gap can make the torque increase of production, radial electromagnetic force reduces to reduce noise and vibration.
Description
Technical field
This utility model relates to a kind of electro spindle, particularly relates to a kind of permanent magnet synchronization motor spindle, specifically refers to the permanent magnet synchronization motor spindle of a kind of wedged air gap.
Background technology
Permanent magnet synchronization motor spindle is had higher requirement by high performance Digit Control Machine Tool, and i.e. under heavy cut operating mode, permanent magnet synchronization motor spindle must have enough torque output capability.
Permanent magnet synchronization motor spindle has the features such as Zero-drive Chain, speed-regulating range width, controllability are good, but the radial electromagnetic force produced can cause vibration and noise to increase.So radial electromagnetic force have to be reduced, thus reduce vibration and noise.
Summary of the invention
Utility model purpose: this utility model provides the permanent magnet synchronization motor spindle structure of a kind of wedged air gap, its objective is to solve permanent magnet synchronization motor spindle output torque little, and radial electromagnetic force is big, and vibration is big and the problem such as noise height.
Technical scheme: this utility model is achieved through the following technical solutions:
A kind of permanent magnet synchronization motor spindle structure of wedged air gap, it is characterized in that: this structure includes rotor, stator and casing, rotor is arranged on multidiameter, and the outer surface of rotor is wedge shape, the air gap that the wedge shape outer surface of rotor is uneven with stator composition, casing is arranged on stator.
This structure also includes that drive end bearing bracket and rear end cap, drive end bearing bracket and rear end cap are separately mounted on multidiameter, is positioned at the both sides of stator.
The outer surface of so-called rotor be wedge shape be exactly that the outer of the radial section of rotor is wedge shaped.
The radius of addendum of the wedge shape outer surface of composition rotor is between 50mm to 51mm, and root radius is between 49mm to 50mm.
The number of the wedge shape of the wedge shape outer surface of composition rotor is 8,10 or 12.
Difference in height k=Rmax-Rmin of rotor outer surface wedge shape, when between k is at 0.2mm to 1mm, torque amplitude increases, and radial electromagnetic force diminishes, thus reduces vibration and noise.
Described rotor is to be formed by silicon steel plate stacking.
Advantage and effect: this utility model provides the permanent magnet synchronization motor spindle structure of a kind of wedged air gap, after using above scheme, the permanent magnet synchronization motor spindle of this utility model wedged air gap can make the torque of generation increase；Radial electromagnetic force reduces, thus reduces noise and vibration.
Accompanying drawing illustrates:
Fig. 1 is the structural representation that this utility model is implemented.
In Fig. 1, each sequence number is respectively as follows: 1. rear end caps；2. axle；3. rotor (wedge shape outer surface)；4. stator；5. casing；6. drive end bearing bracket.
Fig. 2 rotor wedge shape outer surface schematic diagram: 2. axle；3. rotor core (stalloy)；7. permanent magnet；8. airport.
When Fig. 3 and Fig. 4 is the difference in height that a certain model motor fixed stator and rotor structure only change rotor outer surface wedge structure, electromagnetic torque comparison diagram and radial electromagnetic force comparison diagram.
What Fig. 3 and Fig. 4 represented is as the increase of difference in height k value, and electromagnetic torque increases, and radial electromagnetic force reduces.
Detailed description of the invention: below in conjunction with the accompanying drawings this utility model is described further:
Such as Fig. 1, this utility model relates to the permanent magnet synchronization motor spindle structure of a kind of wedged air gap, this structure includes rotor 3, stator 4 and casing 5, rotor 3 is arranged on multidiameter 2, the outer surface of rotor is wedge shape, the wedge shape outer surface of rotor and stator 4 form uneven air gap, and casing 5 is arranged on stator.
This structure also includes that drive end bearing bracket 6 and rear end cap 1, drive end bearing bracket 6 and rear end cap 1 are separately mounted on multidiameter, is positioned at the both sides of stator.
Seeing accompanying drawing 2, the outer surface of rotor is wedge shape, forms non-uniform gap with stator.The outer surface of so-called rotor be wedge shape be exactly that the outer of the radial section of rotor is wedge shaped.
The radius of addendum of the wedge shape outer surface of composition rotor is between 50mm to 51mm, and root radius is between 49mm to 50mm.
The number of the wedge shape of the wedge shape outer surface of composition rotor is 8,10 or 12.
Difference in height k=Rmax-Rmin of rotor outer surface wedge shape, when between k is at 0.2mm to 1mm, torque amplitude increases, and radial electromagnetic force diminishes, thus reduces vibration and noise.
Described rotor is to be formed by silicon steel plate stacking.
Seeing accompanying drawing 3 and accompanying drawing 4, a certain model motor fixed stator and rotor structure only change the difference in height of rotor outer surface wedge structure, and along with the increase of difference in height k, electromagnetic torque increases, and radial electromagnetic force reduces, so that vibration and noise reduce.
It is wedge shape owing to the stalloy being superimposed as rotor is processed into outer surface by this utility model, thus it can make to be formed between rotor and stator uneven air gap, such that it is able to increase torque amplitude, reduce radial electromagnetic force, reduce vibration and noise.
Claims (7)
1. the permanent magnet synchronization motor spindle structure of a wedged air gap, it is characterized in that: this structure includes rotor (3), stator (4) and casing (5), rotor (3) is arranged on multidiameter (2), the outer surface of rotor is wedge shape, the wedge shape outer surface of rotor and stator (4) form uneven air gap, and casing (5) is arranged on stator.
The permanent magnet synchronization motor spindle structure of wedged air gap the most according to claim 1, it is characterised in that: this structure also includes that drive end bearing bracket (6) and rear end cap (1), drive end bearing bracket (6) and rear end cap (1) are separately mounted on multidiameter, is positioned at the both sides of stator.
The permanent magnet synchronization motor spindle structure of wedged air gap the most according to claim 1, it is characterised in that: the outer surface of so-called rotor be wedge shape be exactly that the outer of the radial section of rotor is wedge shaped.
The permanent magnet synchronization motor spindle structure of wedged air gap the most according to claim 3, it is characterised in that: the radius of addendum of the wedge shape outer surface of composition rotor is between 50mm to 51mm, and root radius is between 49mm to 50mm.
The permanent magnet synchronization motor spindle structure of wedged air gap the most according to claim 3, it is characterised in that: the number of the wedge shape of the wedge shape outer surface of composition rotor is 8,10 or 12.
The permanent magnet synchronization motor spindle structure of wedged air gap the most according to claim 3, it is characterized in that: difference in height k=Rmax-Rmin of rotor outer surface wedge shape, when between k is at 0.2mm to 1mm, torque amplitude increases, radial electromagnetic force diminishes, thus reduces vibration and noise.
The permanent magnet synchronization motor spindle structure of wedged air gap the most according to claim 1, it is characterised in that: described rotor is to be formed by silicon steel plate stacking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207542.0U CN205414429U (en) | 2016-03-16 | 2016-03-16 | Permanent magnetism synchronization electric main shaft structure of wedge air gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207542.0U CN205414429U (en) | 2016-03-16 | 2016-03-16 | Permanent magnetism synchronization electric main shaft structure of wedge air gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205414429U true CN205414429U (en) | 2016-08-03 |
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ID=56519008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620207542.0U Expired - Fee Related CN205414429U (en) | 2016-03-16 | 2016-03-16 | Permanent magnetism synchronization electric main shaft structure of wedge air gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205414429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290083A (en) * | 2021-12-09 | 2022-04-08 | 南方科技大学 | Air static pressure spindle based on double-wedge-shaped motor and control method thereof |
-
2016
- 2016-03-16 CN CN201620207542.0U patent/CN205414429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290083A (en) * | 2021-12-09 | 2022-04-08 | 南方科技大学 | Air static pressure spindle based on double-wedge-shaped motor and control method thereof |
| CN114290083B (en) * | 2021-12-09 | 2023-02-21 | 南方科技大学 | Air static pressure spindle based on double-wedge-shaped motor and control method thereof |
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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: 20160803 Termination date: 20180316 |