CN207625380U - Motor and its rotor structure and balance element - Google Patents
Motor and its rotor structure and balance element Download PDFInfo
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- CN207625380U CN207625380U CN201721201384.9U CN201721201384U CN207625380U CN 207625380 U CN207625380 U CN 207625380U CN 201721201384 U CN201721201384 U CN 201721201384U CN 207625380 U CN207625380 U CN 207625380U
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- balance
- compensating groove
- compensating
- balance element
- ontology
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Abstract
One kind is fixed on for motor and its rotor structure and balanced body, wherein balance element on rotor structure, to carry out dynamic balance calibration to rotor structure, it is characterised in that：The balance element includes balance ontology, at least one set of compensating groove is provided on the balance ontology, at least one set compensating groove includes several compensating grooves, and the compensating groove is bottom opening or the receiving space not being open.The application motor and its rotor structure and balance element, using the balance element for being separately provided and being fixed on rotor body, it can be according to the rotation imbalance situation of actual rotor structure, the balance weight of suitable quantity and weight is neatly installed on the suitable position of balance ontology, or open up compensating groove on the suitable position of balance ontology, the shortcomings that so as to easily correct the unbalance condition of rotor structure, overcome the prior art.
Description
Technical field
This application involves a kind of motor and its rotor structure and balance element, especially brushless motor and its rotor structure peace
Weigh part.
Background technology
Brushless motor is because of low-loss, the advantage of low noise, smooth movements and long lifespan, in electromechanical integration application field
In be widely used.In general, brushless motor includes pedestal, the stator on the pedestal, rotates on the stator
Rotor and the output shaft being connected on the rotor.The rotor includes mainly yoke and the magnet in the yoke, this is fixed
Son is coil windings, which is rotationally connected with by the shaft on the stator.However, in the manufacturing process of yoke, due to
The characteristic of manufacturing method and raw material causes yoke sole mass to be unevenly distributed, rotation when dynamic balancing be unable to control；And
Due to manufacturing tolerance, the deviation of concentricity and circularity is will produce, leads to the unbalance dynamic problem of rotor.In order to ensure the rotor
Requirement for dynamic balance, it is necessary to the machining accuracy for improving the yoke increases the manufacturing procedure and difficulty of processing of the yoke.Usual people
To there are mainly two types of the dynamically balanced bearing calibrations of brushless electric motor rotor：Duplicate removal method and weightening finish method.Duplicate removal method is examined by dynamic balancing
Survey machine measures rotor unbalance value, and certain material is removed using modes such as drilling, millings in corresponding position, keeps rotor dynamic flat
Weighing apparatus is met the requirements.However, duplicate removal method not only influences appearance, but also it forms hole because of the material removal on rotor on rotor
Etc. directly affecting electrical machinery life；Even, when amount of unbalance is excessive, duplicate removal dynamic balancing will be unable to carry out.Weightening finish rule is in correspondence
Position increase counterweight material so that rotor dynamic balancing is met the requirements.However, the counterweight material of traditional weightening finish method is viscose glue, viscose glue
It in the case of the increasing of temperature urgency or aging, easily falls off from rotor, causes the imbalance of bigger, in addition, in use, gluing
The broken formation broken particle of glue is scattered in motor, influences the performance of motor.
Utility model content
The purpose of the application is to provide a kind of motor and its rotor structure and balance element.
For this purpose, according to the one side of the application, a kind of balance element is provided, is fixed on rotor structure, to turning
Minor structure carries out dynamic balance calibration, it is characterised in that：The balance element includes balance ontology, be provided on the balance ontology to
Few one group of compensating groove, at least one set compensating groove includes several compensating grooves, and the compensating groove is bottom opening or does not open
The receiving space of mouth.
According to an embodiments possible, the center of circle and the balance ontology of each compensating groove of at least one set compensating groove
Circle center distance is equal.
According to an embodiments possible, it is described at least one set compensating groove each compensating groove volume it is equal, it is described extremely
The circle center distance of two neighboring compensating groove in few one group of compensating groove is equal.
According to an embodiments possible, be provided with multigroup compensating groove on the balance ontology, one of which compensating groove with
The size of other groups of compensating grooves can be identical or different, and one of which compensating groove can be identical with the quantity of other groups of compensating grooves
Or it is different.
According to an embodiments possible, three groups or three groups or more of compensating groove is provided on the balance ontology, it is adjacent
The distance between two groups of compensating grooves can be equal, can not also be equal.
According to an embodiments possible, when the compensating groove is the receiving space of bottom opening, compensating groove towards turn
The opening of sub- ontology side be more than, be less than or equal to and backwards to rotor body side opening.
According to an embodiments possible, the shape of the compensating groove be stairstepping, inverted steps shape, arc-shaped infundibulate,
Arc-shaped inverted funnel shape or hourglass shape.
Further include several balance weights according to an embodiments possible, it is selectively fixed to be housed in described at least one
In wherein several compensating grooves of group compensating groove.
According to an embodiments possible, the weight of several balance weights can be identical or different, and/or, it is described
Several balance weights are mounted in same group of compensating groove or in the compensating groove of different groups.
According to further aspect of the application, a kind of rotor structure is provided, it is characterised in that：If including rotor body,
Dry permanent magnet and foregoing balance element.
According to an embodiments possible, the balance element is fixed on the upper surface and/or lower face of rotor body, with
Rotor body rotates together.
According to another aspect of the application, a kind of motor, including rotor body, several permanent magnets and foregoing
Balance element.
According to an embodiments possible, the motor is DC brushless motor.
The application motor and its rotor structure and balance element, using the balance for being separately provided and being fixed on rotor body
Part, can be according to the rotation imbalance situation of actual rotor structure, and neatly installation is suitable on the suitable position of balance ontology
The balance weight of quantity and weight, or compensating groove is opened up on the suitable position of balance ontology, so as to easily correct
The unbalance condition of rotor structure, the shortcomings that overcoming the prior art.
Description of the drawings
Fig. 1 is painted the exploded perspective view of the rotor structure of one embodiment of the application.
Fig. 2 is painted the schematic diagram of another angle of the balance element of rotor structure shown in Fig. 1.
Fig. 3 is painted the schematic diagram of the balance element of one embodiment of the application.
Fig. 4 is painted the schematic diagram of the balance element of another embodiment of the application.
Fig. 5 A to Fig. 5 E are painted the schematic diagram of the shape of the container of the balance element of the application.
Fig. 6 A to Fig. 6 C are painted the schematic cross-section of the balance element of the application other embodiments.
Specific implementation mode
The preferred embodiment of the application is described with reference to the accompanying drawings.
Fig. 1 is please referred to, the rotor structure 4 of one embodiment of the application is the rotating member of brushless motor, including rotor body
41, several permanent magnets 7 and balance element 8.Rotor body 41 forms container 6, to accommodate permanent magnet 7；Balance element 8 is fixed on
On the upper surface and/or lower face of rotor body 4, with rotor body 41 rotate together to rotor structure 4 into action balance
Correction.
In present embodiment, balance element 8 includes generally circular flat balance ontology 81.It is arranged on balance ontology 81
There is at least one set of compensating groove 810, which includes several compensating grooves, and each center of circle of compensating groove 810
Equal with the balance circle center distance of ontology 81, the volume of each compensating groove 810 is equal, the distance of center circle of two neighboring compensating groove 810
From equal.For example, as shown in Fig. 2, being provided with three groups of compensating grooves 810 on balance ontology 81；As shown in Figure 3 and Figure 4, ontology is balanced
One group and two groups of compensating grooves 810 are respectively arranged on 81.When being provided with multigroup compensating groove 810 on balance ontology 81, wherein one
Group compensating groove 810 can be identical or different from the volume of other groups of compensating grooves 810；One of which compensating groove 810 with other groups
The quantity of compensating groove 810 can be identical or different.When the compensating groove 810 for being provided with three groups or three groups or more on balance ontology 81
When, the distance between two adjacent groups compensating groove 810 can be equal, can not also be equal.It can be according to real balance accuracy requirement
And/or the size of balance ontology 81, select the number of the group of setting compensating groove 810 and every group of institute on balance ontology 81
Including compensating groove 810 number.
It balances on surface of the ontology 81 towards rotor body 41（Balance the fitting surface of ontology 81）, it is provided with positioning region,
It is located on the suitable position of rotor body 41 ontology 81 will be balanced, balance ontology 81 is located on rotor body 41
Suitable position.The positioning column 84 that positioning region is e.g. positioned close to 81 center of circle of balance ontology is correspondingly set on rotor body 41
It is equipped with the locating slot of receiving positioning region.Determine it is appreciated that positioning region can also be provided on the fitting surface of balance ontology 81
Position groove is correspondingly provided with the positioning column of protrusion on rotor body 41, be housed in the positioning groove of balance ontology 81.
Preferably, rotor structure 4 can also include holding parts, be fixed on rotor body will balance ontology 81, Gu
The portion of holding is, for example, fixing ring 9 shown in FIG. 1, and fixing ring 9 passes through balance ontology 81 to be retained on rotor body 41 by interference fit
On；Holding parts can also be screw, and balance ontology 81 is fixed on rotor body 41；Holding parts can also be recited above
Balance ontology 41 is fixed on rotor body 41 by positioning region by interference fit.
Balance element 8 further includes several balance weights 82（Shown in Fig. 1）, pass through interference fit and/or bonding method, selectivity
Ground fixation is housed in compensating groove 810, is simplified form, a balance weight 82 is exemplarily only shown in Fig. 1.According to practical need
It asks, compensating groove 810 can be bottom opening or the receiving space that is not open, such as stairstepping, inverted steps shape, arc-shaped funnel
Shape, arc-shaped inverted funnel shape or hourglass shape.Preferably, as fig. 5 a and fig. 5b, compensating groove 810 is stairstepping and circular arc respectively
Shape infundibulate, the opening towards 41 side of rotor body is larger, and the opening backwards to the side of rotor body 41 is smaller, so as to
By the clamping between balance ontology 81 and rotor body 41, more securely balance weight 82 is fixed on balance ontology 81, is prevented
Balance weight 82 falls off in rotor structure rotation process.In other embodiments, as shown in Fig. 5 C and Fig. 5 D, compensating groove 810
It is inverted steps shape and the arc-shaped shape of falling loophole respectively, the opening backwards to 41 side of rotor body is larger, and towards rotor body
The opening of 41 side is smaller, and the benefit of such compensating groove 810 is：It conveniently momentarily can supplement, replace or adjust balance weight
82 quantity and position.As shown in fig. 5e, compensating groove 810 is hourglass shape, can be easily on two surfaces of balance element 8
Balance weight 82 is set.
According to the rotation imbalance situation of the actually detected rotor structure arrived, the balance weight 82 of approrpiate wts is selected to combine.
The balance weight 82 combination includes several balance weights 82, and the weight of the balance weight 82 in the combination can be identical or different, such
Balance weight 82 may be mounted in same group of compensating groove 810, can also be separately mounted in different groups of compensating groove 810, to
Compensate the rotation imbalance situation of rotor structure.
When assembling, the rotation imbalance situation of rotor structure is measured first；The balance weight of approrpiate wts is selected by calculating
82 combinations；Each balance weight 82 of approrpiate wts is selectively assembled into suitable compensating groove 810；Finally, by 8 groups of balance element
Dress is fixed on rotor structure 4.
The shape of balance ontology 81 can be selected according to the actual installation space of rotor structure 4.In the present embodiment, it puts down
Weigh 81 generally circular tabular of ontology.Fig. 6 A to Fig. 6 C are please referred to, in other embodiments, balance ontology 81 for example may be used also
Be coniform, dome shape, it is intermediate flat and that edge tilts is discoid etc..
The application motor is brushless motor, it is preferable that the application motor is DC brushless motor.The application motor includes position
Set fixed stator（It is not shown）, foregoing rotor structure 4 and an output shaft 10 being connected with rotor structure 4（Figure
1）, wherein rotor structure 4 is rotatably arranged in stator interior.
The application motor and its rotor structure and balance element, using the balance for being separately provided and being fixed on rotor body
Part, can be according to the rotation imbalance situation of actual rotor structure, and neatly installation is suitable on the suitable position of balance ontology
The balance weight of quantity and weight, or compensating groove is opened up on the suitable position of balance ontology, so as to easily correct
The unbalance condition of rotor structure, the shortcomings that overcoming the prior art.
Although disclosed some embodiments, these embodiments only provide in an illustrative manner, and are not meant to limit
Scope of the present application processed.The attached claims and its equivalent replacement are intended to make in the application scope and spirit all
Modification substitutes and changes.
Claims (13)
1. a kind of balance element（8）, it is fixed on rotor structure（4）On, to rotor structure（4）Dynamic balance calibration is carried out, it is special
Sign is：The balance element（8）Including balancing ontology（81）, the balance ontology（81）On be provided at least one set of compensating groove
（810）, at least one set of compensating groove described in every group（810）Including several compensating grooves（810）, the compensating groove（810）It is bottom
Opening or the receiving space not being open.
2. balance element as described in claim 1, it is characterised in that：At least one set compensating groove（810）Each compensating groove
（810）The center of circle with balance ontology（81）Circle center distance it is equal.
3. balance element as claimed in claim 2, it is characterised in that：At least one set compensating groove（810）Each compensating groove
Volume it is equal, it is described at least one set compensating groove（810）Interior two neighboring compensating groove（810）Circle center distance it is equal.
4. balance element as claimed in claim 3, it is characterised in that：The balance ontology（81）On be provided with multigroup compensating groove
（810）, one of which compensating groove（810）With other groups of compensating grooves（810）Size can be identical or different, one of which is flat
Weigh slot（810）With other groups of compensating grooves（810）Quantity can be identical or different.
5. balance element as claimed in claim 3, it is characterised in that：The balance ontology（81）On be provided with three groups or three groups with
On compensating groove（810）, two adjacent groups compensating groove（810）The distance between can be equal, can not also be equal.
6. balance element as described in claim 1, it is characterised in that：The compensating groove（810）It is the receiving space of bottom opening
When, compensating groove（810）Towards rotor body（41）The opening of side be more than, be less than or equal to and backwards to rotor body（41）'s
The opening of side.
7. balance element as described in claim 1, it is characterised in that：The compensating groove（810）Shape be stairstepping, inverted steps
Shape, arc-shaped infundibulate, arc-shaped inverted funnel shape or hourglass shape.
8. balance element as described in claim 1, it is characterised in that：Further include several balance weights（82）, selectively fix
It is housed at least one set of compensating groove（810）Wherein several compensating grooves（810）It is interior.
9. balance element as claimed in claim 8, it is characterised in that：Several described balance weights（82）Weight can it is identical or
Difference, and/or, several described balance weights（82）Mounted on same group of compensating groove（810）Interior or different group of compensating groove（810）
It is interior.
10. a kind of rotor structure, it is characterised in that：Including rotor body（41）, several permanent magnets（7）And such as claim 1-
Balance element described in 9 any one（8）.
11. rotor structure as claimed in claim 10, it is characterised in that：The balance element（8）It is fixed on rotor body（4）'s
On upper surface and/or lower face, with rotor body（4）It rotates together.
12. a kind of motor, including rotor body（41）, several permanent magnets（7）And it is as described in any one of claims 1-9
Balance element（8）.
13. motor as claimed in claim 12, it is characterised in that：The motor is DC brushless motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721201384.9U CN207625380U (en) | 2017-09-19 | 2017-09-19 | Motor and its rotor structure and balance element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721201384.9U CN207625380U (en) | 2017-09-19 | 2017-09-19 | Motor and its rotor structure and balance element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207625380U true CN207625380U (en) | 2018-07-17 |
Family
ID=62818162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721201384.9U Expired - Fee Related CN207625380U (en) | 2017-09-19 | 2017-09-19 | Motor and its rotor structure and balance element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207625380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038937A (en) * | 2018-09-04 | 2018-12-18 | 上海歌尔泰克机器人有限公司 | A kind of motor, dynamical system, unmanned plane and Calculate Ways |
-
2017
- 2017-09-19 CN CN201721201384.9U patent/CN207625380U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038937A (en) * | 2018-09-04 | 2018-12-18 | 上海歌尔泰克机器人有限公司 | A kind of motor, dynamical system, unmanned plane and Calculate Ways |
| CN109038937B (en) * | 2018-09-04 | 2020-04-03 | 上海歌尔泰克机器人有限公司 | Motor, power system, unmanned aerial vehicle and balancing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180717 |