CN203691093U - Vibrating mirror motor rotor - Google Patents
Vibrating mirror motor rotor Download PDFInfo
- Publication number
- CN203691093U CN203691093U CN201320854854.7U CN201320854854U CN203691093U CN 203691093 U CN203691093 U CN 203691093U CN 201320854854 U CN201320854854 U CN 201320854854U CN 203691093 U CN203691093 U CN 203691093U
- Authority
- CN
- China
- Prior art keywords
- bar magnet
- mirror motor
- oscilation
- rotator
- cylinder bar
- 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 - Lifetime
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- 239000000463 material Substances 0.000 claims description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model discloses a vibrating mirror motor rotor, belonging to the laser vibrating mirror equipment manufacture technical field, and comprises a cylindrical magnetic bar provided with two grinding surfaces; the two grinding surfaces are symmetrically arranged using the shaft cross section on which a magnetic field direction is located as a mirror surface; the distance between the two grinding surfaces is no less than 2/3 of the diameter of the cylindrical magnetic bar. According to the utility model, the magnetic bar of a vibrating mirror motor rotor is processed into an abnormal shape from a present cylinder, which substantially reduces the rotational inertia of the rotor; meanwhile the performance of two poles of a magnet does not change obviously; and accordingly, under the condition of not changing a motor structure and not influencing magnetic field intensity, a rotation rate is substantially accelerated, and a torque to inertia ratio is substantially raised to meet laser rapid marking demands.
Description
Technical field
The utility model belongs to laser galvanometer equipment manufacturing technology field, is specifically related to a kind of rotator for oscilation mirror motor.
Background technology
Laser galvanometer is the optical scanner of a kind of high accuracy, high-speed and high duplication, is widely used in the fields such as Materialbearbeitung mit Laserlicht, biologic medical detection, laser projection and demonstration, graph and image processing and semiconductor machining.
What existing laser rotator for oscilation mirror motor used is rare-earth permanent magnet, its great majority are the cylindrical of rule, the moment of inertia of rotor is larger, torque inertia is smaller, the dynamic characteristic of motor is not optimized completely, cause magnet performance waste, electric machine rotation absolute speed is low, can not meet the actual requirement of laser galvanometer high-speed marking.
Utility model content
The defect existing in order to overcome above-mentioned prior art, the purpose of this utility model is to provide a kind of rotator for oscilation mirror motor, and this motor rotor construction is simple, reasonable in design, and processing and fabricating is convenient, uses simple operation, practical, is convenient to promote the use of.
The utility model is to be achieved through the following technical solutions:
A kind of rotator for oscilation mirror motor, comprises cylinder bar magnet, and described cylinder bar magnet is provided with two grinding faces, and two grinding faces are take the shaft section at magnetic direction place as Mirror Symmetry setting, and the distance between two grinding faces is more than or equal to 2/3 of cylinder bar magnet diameter.
The radial cross-section of described cylinder bar magnet is cydariform.
On described two grinding faces, offer two grooves of position symmetry.
The radial cross-section of described cylinder bar magnet is for being I shape.
The concave surface of described groove is arc.
The two ends of described cylinder bar magnet have at least one end to be provided with for bearings mounted step.
Described cylinder bar magnet is made up of NdFeB material.
Compared with prior art, the utlity model has following useful technique effect:
Rotator for oscilation mirror motor of the present utility model, comprise cylinder bar magnet, on this cylinder bar magnet, be provided with two grinding faces take the shaft section at magnetic direction place as Mirror Symmetry, and the distance between two grinding faces is more than or equal to 2/3 of cylinder bar magnet diameter, the utility model is processed into the bar magnet of rotator for oscilation mirror motor after abnormal shape by existing cylinder, reduce significantly the moment of inertia of rotor, the two poles of the earth performance of magnet does not significantly change simultaneously, can keep electric machine structure constant and do not affect magnetic field intensity in the situation that like this, slewing rate is significantly accelerated, torque ratio of inertias significantly improves, can meet the demand of the quick mark of laser.
Further, the internal diameter size of the bearing that need install during according to use, selectively arranges step at the two ends of cylindrical bar magnet, for bearing is installed.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 of the present utility model;
Fig. 2 is the structural representation of embodiment 2 of the present utility model;
Fig. 3 is the structural representation of embodiment 3 of the present utility model;
Fig. 4 is the structural representation of embodiment 4 of the present utility model.
Wherein: 1 is cylindrical bar magnet; 2 is groove; 3 is step.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Referring to Fig. 1, comprise the cylinder bar magnet 1 of radial magnetizing, described cylinder bar magnet 1 is provided with two grinding faces 2, two grinding faces 2 are take the shaft section at magnetic direction place as Mirror Symmetry setting, distance between two grinding faces 2 is more than or equal to 2/3 of cylinder bar magnet 1 diameter, can, not affecting under the prerequisite of magnetic field intensity, significantly reduce the moment of inertia of magnet like this.The radial cross-section of described cylinder bar magnet 1 is cydariform.
Referring to Fig. 2, rotator for oscilation mirror motor, comprise cylinder bar magnet 1, on the grinding face of cylinder bar magnet 1, offer two grooves 3 of position symmetry, the radial cross-section that makes cylinder bar magnet 1 is I shape, because the pole orientation of cylinder bar magnet 1 remains circular-arc, thereby do not affect magnetic field intensity.
The rotator for oscilation mirror motor of making according to the present embodiment can subtract trochantinian moment of inertia, because the part of grinding is non-pole parts, can not affect magnetic conduct the relation, so can significantly improve the response speed of motor.
Referring to Fig. 3, rotator for oscilation mirror motor, comprises cylinder bar magnet 1, offers two grooves 3 of position symmetry on the grinding face of cylinder bar magnet 1, and difference from Example 1 is, the concave surface of the groove 3 of offering is curved.
The rotator for oscilation mirror motor of making according to the present embodiment can subtract trochantinian moment of inertia equally, significantly improves the response speed of motor in the situation that not affecting magnetic conduct the relation.
Embodiment 4
Referring to Fig. 4, as different from Example 1: the rotator for oscilation mirror motor of the present embodiment, be provided with step 4 at the two ends of cylinder bar magnet 1, for bearing is installed, arranging according to the bearing bore diameter size being used in conjunction with described rotator for oscilation mirror motor of this step 4 is relevant.
The rotator for oscilation mirror motor of making according to the present embodiment can subtract trochantinian moment of inertia equally, significantly improves the response speed of motor in the situation that not affecting magnetic conduct the relation, can also well be used in conjunction with bearing.
Claims (7)
1. a rotator for oscilation mirror motor, it is characterized in that, comprise cylinder bar magnet (1), described cylinder bar magnet (1) is provided with two grinding faces (2), two grinding faces (2) are take the shaft section at magnetic direction place as Mirror Symmetry setting, and the distance between two grinding faces (2) is more than or equal to 2/3 of cylinder bar magnet (1) diameter.
2. a kind of rotator for oscilation mirror motor according to claim 1, is characterized in that, the radial cross-section of described cylinder bar magnet (1) is cydariform.
3. a kind of rotator for oscilation mirror motor according to claim 1, is characterized in that, offers two grooves (3) of position symmetry on described two grinding faces.
4. a kind of rotator for oscilation mirror motor according to claim 3, is characterized in that: the radial cross-section of described cylinder bar magnet (1) is I shape.
5. a kind of rotator for oscilation mirror motor according to claim 3, is characterized in that: the concave surface of described groove (3) is arc.
6. according to a kind of rotator for oscilation mirror motor described in any one in claim 1～5, it is characterized in that: the two ends of described cylinder bar magnet (1) have at least one end to be provided with for bearings mounted step (4).
7. according to a kind of rotator for oscilation mirror motor described in any one in claim 6, it is characterized in that: described cylinder bar magnet (1) is made up of NdFeB material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854854.7U CN203691093U (en) | 2013-12-20 | 2013-12-20 | Vibrating mirror motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854854.7U CN203691093U (en) | 2013-12-20 | 2013-12-20 | Vibrating mirror motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691093U true CN203691093U (en) | 2014-07-02 |
Family
ID=51012955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320854854.7U Expired - Lifetime CN203691093U (en) | 2013-12-20 | 2013-12-20 | Vibrating mirror motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203691093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143124A (en) * | 2018-08-01 | 2019-01-04 | 歌尔股份有限公司 | Magnet polarities detection method, equipment, system and storage medium |
-
2013
- 2013-12-20 CN CN201320854854.7U patent/CN203691093U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143124A (en) * | 2018-08-01 | 2019-01-04 | 歌尔股份有限公司 | Magnet polarities detection method, equipment, system and storage medium |
| CN109143124B (en) * | 2018-08-01 | 2020-11-17 | 歌尔光学科技有限公司 | Magnet polarity detection method, device, system and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |