CN203774949U - Shock-proof outer rotor motor - Google Patents
Shock-proof outer rotor motor Download PDFInfo
- Publication number
- CN203774949U CN203774949U CN201420138894.6U CN201420138894U CN203774949U CN 203774949 U CN203774949 U CN 203774949U CN 201420138894 U CN201420138894 U CN 201420138894U CN 203774949 U CN203774949 U CN 203774949U
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- CN
- China
- Prior art keywords
- shockproof
- pedestal
- external
- fixed part
- rotor motor
- 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
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- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A shock-proof outer rotor motor comprises a pedestal, an inner stator, an outer rotor and at least one shockproof bearing. The pedestal comprises a fixing portion, an axis center portion which is connected to the fixing portion and is extended and arranged along one reference axis and one hollow through groove which penetrates from the fixing portion to the axis center portion and is located on the reference axis. The inner stator surrounds and is fixed to an outer side of the axis center portion and comprises a group of exciting coils. The outer rotor and the inner stator are arranged with an interval. A rotating shaft which is pivoted and arranged in the hollow through groove, a barrel which wraps an outer side of the inner stator and is connected to the rotating shaft and a group of magnets which surround and are embedded into the barrel are included. The shockproof bearing is connected and installed between the pedestal and the barrel and can restrain vibration of the barrel.
Description
Technical field
The utility model relates to a kind of external-rotor motor, particularly relates to a kind of shockproof external-rotor motor.
Background technology
As shown in Figures 1 and 2, the existing for example aircraft that is installed on, on the dynamic models such as motorboat, and can be used for driving the external-rotor motor 1 of one group of propeller blade, comprise a stator 11, and a pivotable is arranged on this stator 11, and the external rotor 12 that can install for this propeller blade.
This stator 11 comprises a base 111, and one around the magnetizing coil 112 being sheathed on this base 111.This base 111 has a hollow that runs through setting and wears groove 113.
This external rotor 12 arranges separately with this stator 11, and comprise that a pivotable is arranged at this hollow and wears rotating shaft in groove 113 121, a cylindrical shell 122 that is coated on these stator 11 outsides and is connected with this rotating shaft 121, and one group around being embedded on this cylindrical shell 122, and the magnet 123 that magnetizing coil 112 that should stator 11 is arranged.
Although such design can reach the function that drives this propeller blade really, but because of only one-sided being fixed in this rotating shaft 121 of cylindrical shell 122 of this external rotor 12, once between assembly because mismachining tolerance causes coaxiality deviation, maybe this group magnet 123 causes the problem of centre-of gravity shift in the time installing because of weight inequality, all easily allow this external rotor 12 in the time running up, produce beat and vibrations, not only affect usefulness performance, get off for a long time and also will affect the structural strength of model, the problems such as severe patient may cause assembly to damage or joint gets loose, the fail safe that impact is used.
Summary of the invention
The purpose of this utility model is to provide a kind of seismism that can suppress generation in the time rotating, and then reaches the shockproof external-rotor motor of high speed and stable rotation.
The utility model shockproof external-rotor motor comprises a pedestal, an internal stator, an and external rotor, this pedestal comprises a fixed part, one is connected with this fixed part and extends the axle center part arranging along an axis of reference, and one run through setting from this fixed part towards this axle center part, and the hollow being positioned on this axis of reference is worn groove, this internal stator is around the outside of being fixed on this axle center part, and comprise one group of magnetizing coil, this external rotor and this internal stator arrange separately, and comprise that a pivotable is arranged at this hollow and wears the rotating shaft in groove, a cylindrical shell that is coated on this internal stator outside and is connected with this rotating shaft, and one group around being embedded on this cylindrical shell, and to the magnet should magnetizing coil arranging, this cylindrical shell comprises a rotating shaft end being connected away from this pedestal setting and with this rotating shaft, an and pivot end arranging in contrast to this rotating shaft end.
This shockproof external-rotor motor also comprises at least one and is connected and installed in the shockproof bearing between this pedestal and this cylindrical shell.
Shockproof external-rotor motor described in the utility model, this shockproof bearing is connected and installed between the fixed part of this pedestal and the pivot end of this cylindrical shell.
Shockproof external-rotor motor described in the utility model, the fixed part of this pedestal has one around this axis of reference setting, and can be for the sheathed flange of this shockproof bearing.
Shockproof external-rotor motor described in the utility model, the quantity of shockproof bearing is several, and is arranged at intervals at the fixed part of this pedestal, and rolls and contact with the cylindrical shell of this external rotor respectively.
Shockproof external-rotor motor described in the utility model, also comprises several supporting pins that can arrange for described shockproof bearing pivotable.
Shockproof external-rotor motor described in the utility model, described supporting pin is parallel to this axis of reference and is installed on the fixed part of this pedestal.
The beneficial effects of the utility model are: by this shockproof bearing, the cylindrical shell pivotable of this external rotor is limited on this pedestal, can suppresses the seismism that this external rotor produces in the time rotating, and then reach the advantage of high speed and stable rotation.
Brief description of the drawings
Fig. 1 is a three-dimensional exploded view, illustrates that an existing external-rotor motor is in the position relationship of decomposing state;
Fig. 2 is a constitutional diagram, and this existing external-rotor motor is described;
Fig. 3 is a three-dimensional exploded view, and the decomposition position relationship of the first preferred embodiment of the utility model shockproof external-rotor motor is described;
Fig. 4 is a constitutional diagram, the relative position relation of the shockproof bearing that above-mentioned preferred embodiment is described after combination;
Fig. 5 is a partial sectional view, illustrates that this shockproof bearing of above-mentioned preferred embodiment is installed on the state between a pedestal and an external rotor;
Fig. 6 is a schematic diagram, and the shockproof bearing of above-mentioned preferred embodiment and the position relationship of this pedestal are described;
Fig. 7 is a partial sectional view, illustrates that the shockproof bearing of one second preferred embodiment of the present utility model is installed on the state between a pedestal and an external rotor;
Fig. 8 is a schematic diagram, and the described shockproof bearing of above-mentioned preferred embodiment and the position relationship of this pedestal are described.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
Before the utility model is described in detail, should be noted that in the following description content, similarly assembly is to represent with identical numbering.
As shown in Figures 3 and 4, the utility model shockproof external-rotor motor is applicable to be arranged on for example aircraft, on the dynamic models such as motorboat, and can be used for driving one group of propeller blade (not shown).The first preferred embodiment of the present utility model comprises a pedestal 2, internal stator 3, external rotor 4, a pad 5, and a shockproof bearing 6.
This pedestal 2 comprises that a fixed part 21, one are connected with this fixed part 21 and extend the axle center part 22 arranging along an axis of reference L, and one run through setting from this fixed part 21 towards this axle center part 22, and the hollow being positioned on this axis of reference L is worn groove 23.This fixed part 21 has a flange 211 arranging around this axis of reference L.
This internal stator 3 is around the outside of axle center part 22 of being fixed on this pedestal 2, and comprises one group of spaced in the form of a ring silicon steel sheet 31, and one group around the magnetizing coil 32 being arranged on this silicon steel sheet 31.
This external rotor 4 arranges separately with this internal stator 3, and comprise that a pivotable is arranged at this hollow and wears rotating shaft in groove 23 41, a cylindrical shell 42 that is coated on these internal stator 3 outsides and is connected with this rotating shaft 41, and one group around being embedded on this cylindrical shell 42, and the magnet 43 that arranges of the magnetizing coil 32 of contiguous this internal stator 3.
This cylindrical shell 42 can arrange for this propeller blade, and comprises a rotating shaft end 421 that arranges away from this pedestal 2 and be connected with this rotating shaft 41, and a pivot end 422 arranging in contrast to this rotating shaft end 421.
This magnet 43 is to being arranged between the rotating shaft end 421 and this pivot end 422 of this cylindrical shell 42 by magnetizing coil 32.In the time that this internal stator 3 pushes away gravitation because the energising of magnetizing coil 32 produces magnetic, will drive this external rotor 4 high speed rotating.
As shown in Figures 5 and 6, this shockproof bearing 6 is connected and installed between the fixed part 21 of this pedestal 2 and the pivot end 422 of this cylindrical shell 42, and can between this shockproof bearing 6 and this fixed part 21, reach pivotable smoothly by this pad 5 is set.In this first preferred embodiment, this shockproof bearing 6 is sheathed on the outside of the flange 211 of this fixed part 21, and is resisted against the inner side of the pivot end 422 of this cylindrical shell 42.
When these internal stator 3 energisings produce magnetic, and then while driving this external rotor 4 pivotable, because of assembly mismachining tolerance and assemble improper caused coaxiality deviation or beat and seismism that centre-of gravity shift produces under high speed rotating, the setting because of this shockproof bearing 6 is effectively solved; Arranging of this shockproof bearing 6 can make this external rotor 4 and the tight pivotal engagement of this pedestal 2, can not only increase whereby the rigidity of structure, and then vibrations while effectively suppressing to rotate improve running speed, can also change in violent acceleration, deceleration because the raising of rigidity is durable, reach more excellent usefulness performance.
As shown in Figures 7 and 8, the second preferred embodiment of the utility model shockproof external-rotor motor is similar to this first preferred embodiment, its difference be in: the flange 211 of this fixed part 21 is replaced into the supporting pin 7 on several fixed parts 21 that are installed on this pedestal 2.This supporting pin 7 can be for described shockproof bearing 6 pivotable settings, the quantity of pad 5 and shockproof bearing 6 is corresponding to the quantity of described supporting pin 7, and can be arranged at intervals on the fixed part 21 of this pedestal 2 by described supporting pin 7, and roll and contact with the cylindrical shell 42 of this external rotor 4 respectively.
In this second preferred embodiment, the quantity of described shockproof bearing 6 and described supporting pin 7 is four, and centered by this axis of reference L, annular array is arranged on this pedestal 2, and only the quantity of described shockproof bearing 6 and described supporting pin 7 can be also other Arbitrary Digits.By being parallel to this axis of reference L, described supporting pin 7 is arranged on the fixed part 21 of this pedestal 2, can reach the advantage of ease of assembly, and the configuration mode of described supporting pin 7 also can be an angle setting with this axis of reference L, reach whereby the effect that is similar to angular contact bearing, and the thrust producing in the time rotating for resisting this propeller blade.
In sum, by this shockproof bearing 6, the cylindrical shell of this external rotor 4 42 pivotables are limited on this pedestal 2, can suppress the seismism that this external rotor 4 produces in the time rotating, and then reach the advantage of high speed and stable rotation, therefore really can reach the purpose of this utility model.
Claims (6)
1. a shockproof external-rotor motor, comprise a pedestal, an internal stator, an and external rotor, this pedestal comprises a fixed part, one is connected with this fixed part and extends the axle center part arranging along an axis of reference, and one run through setting from this fixed part towards this axle center part, and the hollow being positioned on this axis of reference is worn groove, this internal stator is around the outside of being fixed on this axle center part, and comprise one group of magnetizing coil, this external rotor and this internal stator arrange separately, and comprise that a pivotable is arranged at this hollow and wears the rotating shaft in groove, a cylindrical shell that is coated on this internal stator outside and is connected with this rotating shaft, and one group around being embedded on this cylindrical shell, and to the magnet should magnetizing coil arranging, this cylindrical shell comprises a rotating shaft end being connected away from this pedestal setting and with this rotating shaft, an and pivot end arranging in contrast to this rotating shaft end, it is characterized in that: this shockproof external-rotor motor also comprises at least one and is connected and installed in the shockproof bearing between this pedestal and this cylindrical shell.
2. shockproof external-rotor motor according to claim 1, is characterized in that: this shockproof bearing is connected and installed between the fixed part of this pedestal and the pivot end of this cylindrical shell.
3. according to claim 1 or shockproof external-rotor motor claimed in claim 2, it is characterized in that: the fixed part of this pedestal has one around this axis of reference setting, and can be for the sheathed flange of this shockproof bearing.
4. according to claim 1 or shockproof external-rotor motor claimed in claim 2, it is characterized in that: the quantity of shockproof bearing is several, and be arranged at intervals at the fixed part of this pedestal, and roll and contact with the cylindrical shell of this external rotor respectively.
5. shockproof external-rotor motor according to claim 4, is characterized in that: the fixed part of this pedestal also comprises several supporting pins that can arrange for described shockproof bearing pivotable.
6. shockproof external-rotor motor according to claim 5, is characterized in that: described supporting pin is parallel to this axis of reference and is installed on the fixed part of this pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138894.6U CN203774949U (en) | 2014-03-26 | 2014-03-26 | Shock-proof outer rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138894.6U CN203774949U (en) | 2014-03-26 | 2014-03-26 | Shock-proof outer rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774949U true CN203774949U (en) | 2014-08-13 |
Family
ID=51292098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138894.6U Expired - Fee Related CN203774949U (en) | 2014-03-26 | 2014-03-26 | Shock-proof outer rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411089A (en) * | 2016-11-23 | 2017-02-15 | 中科宇图科技股份有限公司 | Hollow shaft brushless motor applied to unmanned aerial vehicles |
-
2014
- 2014-03-26 CN CN201420138894.6U patent/CN203774949U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411089A (en) * | 2016-11-23 | 2017-02-15 | 中科宇图科技股份有限公司 | Hollow shaft brushless motor applied to unmanned aerial vehicles |
| CN106411089B (en) * | 2016-11-23 | 2020-01-21 | 中科宇图科技股份有限公司 | Be applied to unmanned vehicles's hollow shaft brushless motor |
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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 |
Granted publication date: 20140813 Termination date: 20160326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |