CN206364647U - A kind of rotor structure and the motor with it - Google Patents
A kind of rotor structure and the motor with it Download PDFInfo
- Publication number
- CN206364647U CN206364647U CN201621188904.2U CN201621188904U CN206364647U CN 206364647 U CN206364647 U CN 206364647U CN 201621188904 U CN201621188904 U CN 201621188904U CN 206364647 U CN206364647 U CN 206364647U
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- bearing
- rotating shaft
- rotor
- rotor structure
- magnetic steel
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Abstract
Rotor structure and motor of the present utility model, including rotating shaft, and the clutch shaft bearing and second bearing being axially distributed positioned at rotating shaft with one end and along rotating shaft, there is gap between the clutch shaft bearing and second bearing, connection clutch shaft bearing and the pretension part of second bearing are provided with the gap, the pretension part is that clutch shaft bearing and second bearing provide pretightning force.Because clutch shaft bearing and second bearing are arranged at same one end of rotating shaft, and pretension part is provided between two bearings, this rotor structure compact volume is small, reduces the overall volume of motor；It is small that bearing opens shelves, reduces production cost, reduces the vibration of rotor, can reduce noise, is conducive to extending the service life of motor.
Description
Technical field
The utility model relates to technical field of motors, and in particular to the rotor structure in a kind of motor and the electricity with it
Machine.
Background technology
The construction of existing brushless electric machine generally includes casing, stator module and rotor assembly, and rotor assembly includes rotating shaft
And magnet steel etc., wherein, casing is docked by two and half casings and formed.In order to ensure that pivot is steady, in two and half casings
Inner end is set respectively is respectively mounted bearing and rotating shaft cooperation in bearing chamber, bearing chamber, that is, after rotating shaft is installed, bearing is located at
The two ends of rotating shaft.Such bearing arrangement is not compact, and volume is larger；Meanwhile, it is larger that bearing opens shelves, causes to vibrate in motor operation
Substantially, high noise, for the motor of dust collector higher to rotation speed requirements, prolonged vibration not only easily causes electricity
The damage of parts in machine, can also influence the service life of motor.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome rotor structure of the prior art, its middle (center) bearing
Structure is not compact, and it is larger that bearing opens shelves, and obvious defect is vibrated in motor operation.
Therefore, the utility model provides a kind of rotor structure, including rotating shaft, and positioned at rotating shaft with one end and along rotating shaft axle
Have to the clutch shaft bearing and second bearing of distribution, between the clutch shaft bearing and second bearing in gap, the gap and set
There are connection clutch shaft bearing and the pretension part of second bearing, the pretension part is that clutch shaft bearing and second bearing provide pretension
Power.
The pretension part is preloading spring.
The pretension part and the clutch shaft bearing and the second bearing are integrally formed.
Laminating is provided with dust ring, the dust ring socket respectively on the clutch shaft bearing and the opposite end face of second bearing
In rotating shaft.
The rotor structure also includes the rotor magnetic steel being sheathed in the rotating shaft, and locking device, the locking dress
Put the rotor magnetic steel and rotating shaft locking, to prevent the rotor magnetic steel from carrying out circumferential and axial fortune relative to rotating shaft
It is dynamic.
The locking device merges with rotating shaft close-fitting to be connected with the end face of the rotor magnetic steel.
The locking device is loose-proof sleeve, and the loose-proof sleeve is tightly set in the rotating shaft.
The end face that the loose-proof sleeve coordinates with the rotor magnetic steel coordinates provided with projection, the rotor magnetic steel with loose-proof sleeve
End face be provided with groove, the raised embedded groove and the groove match.
Also be molded positioning boss in the rotating shaft, the rotor magnetic steel be located at the positioning boss and the locking device it
Between.
The utility model also provides a kind of motor, with the rotor structure described in any of the above-described.
Technical solutions of the utility model, have the following advantages that：
1. rotor structure of the present utility model, including rotating shaft, and be axially distributed positioned at rotating shaft with one end and along rotating shaft
Clutch shaft bearing and second bearing, have gap between the clutch shaft bearing and second bearing, connection the is provided with the gap
The pretension part of one bearing and second bearing, the pretension part is that clutch shaft bearing and second bearing provide pretightning force.Due to
One bearing and second bearing are arranged at same one end of rotating shaft, and are provided between two bearings pretension part, this rotor knot
Structure compact volume is small, reduces the overall volume of motor；It is small that bearing opens shelves, reduces production cost, reduces the vibration of rotor,
Noise can be reduced, is conducive to extending the service life of motor.
2. rotor structure of the present utility model, the pretension part and the clutch shaft bearing and second bearing one
Shaping, is easy to rotor structure integral installation, and performance is more stablized.
3. rotor structure of the present utility model, by the way that laminating sets dust ring respectively on the opposite end face of bearing, favorably
Enter bearing in preventing dust and influence the normal operation of motor.
4. rotor structure of the present utility model, in addition to the rotor magnetic steel being sheathed in the rotating shaft, and locking device,
The locking device locks the rotor magnetic steel and the rotating shaft, to prevent the rotor magnetic steel from being carried out relative to rotating shaft circumferential
And axial movement.In assembling, as long as locking device to be connected can limit respectively with the rotating shaft and the rotor magnetic steel
The axial direction of the rotor magnetic steel and circumferential movement, also, junction is less, reduces destabilizing factor, and it is high even in motor
During speed revolution, rotor magnetic steel will not also loosen.
5. rotor structure of the present utility model, by the fit system of raised, groove between loose-proof sleeve and rotor magnetic steel, knot
Structure is simple, easy for installation, and stability is high.
6. the positioning boss for positioning rotor magnetic steel is formed in rotor structure of the present utility model, rotating shaft, rotor magnetic
Steel be located at be locked respectively between locking device and positioning boss, on axial direction device and positioning boss it is spacing so that advantageously
In the positioning of guarantee rotor magnetic steel in the axial direction.
7. motor of the present utility model, due to above-mentioned rotor structure, therefore, with excellent described in above-mentioned any one
Point.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of embodiment of the utility model rotor structure；
Fig. 2 is a kind of structural representation of embodiment of the utility model rotor magnetic steel；
Fig. 3 is a kind of structural representation of embodiment of the utility model loose-proof sleeve；
Fig. 4 is a kind of structural representation of embodiment of motor of the present utility model.
Description of reference numerals：
1- rotating shafts；2- rotor magnetic steels；3- clutch shaft bearings；4- preloading springs；
5- dust rings；6- positioning boss；7- loose-proof sleeves；8- is raised；
9- grooves；10- second bearings.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
Embodiment 1
A kind of embodiment of rotor structure as illustrated in the accompanying drawings from 1 to 3, the rotor structure includes rotating shaft 1, Yi Jiwei
The clutch shaft bearing 3 and second bearing 10, the clutch shaft bearing 3 and second bearing being axially distributed with one end and along rotating shaft 1 in rotating shaft 1
Have between 10 and connection clutch shaft bearing 3 and the pretension part of second bearing 10, the pretension portion are provided with gap, the gap
Part is that clutch shaft bearing 3 and second bearing 10 provide pretightning force.
Because clutch shaft bearing 3 and second bearing 10 are arranged at same one end of rotating shaft 1, and it is provided between two bearings pre-
Tight part, this rotor structure compact volume is small, reduces the overall volume of motor；It is small that bearing opens shelves, reduces production cost,
The vibration of rotor is reduced, noise can be reduced, is conducive to extending the service life of motor.
Preferably, laminating is provided with dust ring 5 respectively on the opposite end face of bearing 3, the dust ring 5 is socketed in institute
State in rotating shaft 3, this is conducive to preventing dust from entering bearing and influenceing the normal operation of motor.
Preferably, the pretension part is preloading spring 4, pretightning force is provided by preloading spring 4, rotating shaft is more buffered
1 impulsive force when rotating, advantageously reduces noise, it is ensured that mechanism operation is more steady.
Preferably, as shown in figure 1, the pretension part is integrally formed with the clutch shaft bearing 3 and second bearing 10, just
In rotor structure integral installation, and performance is more stable.
Preferably, the rotor structure also includes the rotor magnetic steel 2 being sheathed in the rotating shaft 1, and locking device,
The locking device locks the rotor magnetic steel 2 and the rotating shaft 1, to prevent the rotor magnetic steel 2 from being carried out relative to rotating shaft 1
Circumferential and axial are moved.
In assembling, as long as locking device is connected respectively with the rotating shaft 1 and the rotor magnetic steel 2 can limit institute
Axial direction and the circumferential movement of rotor magnetic steel 2 are stated, also, junction is less, reduces destabilizing factor, even in motor at a high speed
During revolution, rotor magnetic steel 2 will not also loosen.
Preferably, loose-proof sleeve 7 is tightly set in rotating shaft 1, and connected in the end face of the rotor magnetic steel 2.Tool
Body, the end face that the loose-proof sleeve 7 coordinates with the rotor magnetic steel 2 is provided with projection 8, and the rotor magnetic steel 2 is matched somebody with somebody with loose-proof sleeve 7
The end face of conjunction is provided with groove 9, the raised 8 insertion groove 9 to match with the groove 9.Loose-proof sleeve 7 and rotor magnetic steel 2
Between fit system by projection 8, between groove 9 realize locking design for rotor magnetic steel, simple in construction, installation side
Just, stability is high.
Preferably, being also molded positioning boss 6 in the rotating shaft 1, the rotor magnetic steel 2 is located at the He of positioning boss 6
Between the locking device.Rotor magnetic steel 2 be located at be locked respectively between locking device and positioning boss 6, on axial direction device and
Positioning boss 6 is spacing, so that the advantageously positioning in guarantee rotor magnetic steel 2 in the axial direction.
Embodiment 2
As shown in figure 4, the present embodiment provides a kind of motor, including casing, stator module and rotor in casing
Structure, wherein, the rotor structure is the rotor structure any one of embodiment 1.
The motor of the present embodiment, because the clutch shaft bearing 3 and second bearing 10 of rotor structure are arranged at the same of rotating shaft 1
End, and pretension part is provided between two bearings, this rotor structure compact volume is small, reduces the overall body of motor
Product；It is small that bearing opens shelves, reduces production cost, reduces the vibration of rotor, can reduce noise, is conducive to extending making for motor
Use the life-span.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (10)
1. a kind of rotor structure, it is characterised in that including rotating shaft (1), and positioned at rotating shaft (1) with one end and along rotating shaft (1) axle
To the clutch shaft bearing (3) and second bearing (10) of distribution, there is gap between the clutch shaft bearing (3) and second bearing (10),
Connection clutch shaft bearing (3) and the pretension part of second bearing (10) are provided with the gap, the pretension part is first axle
Hold (3) and second bearing (10) provides pretightning force.
2. rotor structure according to claim 1, it is characterised in that the pretension part is preloading spring (4).
3. rotor structure according to claim 1 or 2, it is characterised in that the pretension part and the clutch shaft bearing (3)
And the second bearing (10) is integrally formed.
4. rotor structure according to claim 1 or 2, it is characterised in that the clutch shaft bearing (3) and second bearing (10)
Laminating is provided with dust ring (5) respectively on opposite end face, and the dust ring (5) is socketed in rotating shaft (1).
5. rotor structure according to claim 1 or 2, it is characterised in that also including being sheathed on turning in the rotating shaft (1)
Sub- magnet steel (2), and locking device, the locking device lock the rotor magnetic steel (2) and the rotating shaft (1), to prevent
The rotor magnetic steel (2) carries out circumferential and axial motion relative to rotating shaft (1).
6. rotor structure according to claim 5, it is characterised in that the locking device merge with rotating shaft (1) close-fitting with
The end face connection of the rotor magnetic steel (2).
7. rotor structure according to claim 6, it is characterised in that the locking device is loose-proof sleeve (7), described locking
Set (7) is tightly set in the rotating shaft (1).
8. rotor structure according to claim 7, it is characterised in that the loose-proof sleeve (7) is matched somebody with somebody with the rotor magnetic steel (2)
The end face of conjunction is provided with raised (8), and the rotor magnetic steel (2) is provided with groove (9) with the end face that loose-proof sleeve (7) coordinates, described
Match in raised (8) embedded groove (9) with the groove (9).
9. rotor structure according to claim 5, it is characterised in that be also molded positioning boss (6) on the rotating shaft (1),
The rotor magnetic steel (2) is located between the positioning boss (6) and the locking device.
10. a kind of motor, it is characterised in that with the rotor structure any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621188904.2U CN206364647U (en) | 2016-11-04 | 2016-11-04 | A kind of rotor structure and the motor with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621188904.2U CN206364647U (en) | 2016-11-04 | 2016-11-04 | A kind of rotor structure and the motor with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206364647U true CN206364647U (en) | 2017-07-28 |
Family
ID=59369690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621188904.2U Active CN206364647U (en) | 2016-11-04 | 2016-11-04 | A kind of rotor structure and the motor with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206364647U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505806A (en) * | 2017-09-15 | 2019-03-22 | 株式会社东芝 | Mounting structure, rotating machinery and air-conditioning device |
| WO2021127912A1 (en) * | 2019-12-23 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Linear vibration electric motor |
-
2016
- 2016-11-04 CN CN201621188904.2U patent/CN206364647U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505806A (en) * | 2017-09-15 | 2019-03-22 | 株式会社东芝 | Mounting structure, rotating machinery and air-conditioning device |
| WO2021127912A1 (en) * | 2019-12-23 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Linear vibration electric motor |
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