CN1808856B - Electric wheel hub - Google Patents
Electric wheel hub Download PDFInfo
- Publication number
- CN1808856B CN1808856B CN 200510023443 CN200510023443A CN1808856B CN 1808856 B CN1808856 B CN 1808856B CN 200510023443 CN200510023443 CN 200510023443 CN 200510023443 A CN200510023443 A CN 200510023443A CN 1808856 B CN1808856 B CN 1808856B
- Authority
- CN
- China
- Prior art keywords
- gear
- gear ring
- hub shell
- motor
- motor shaft
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Retarders (AREA)
Abstract
This invention relates to one electrical hub connected to the motor outer rooter and solar wheel by planet band rotating. This invention adopts outer rotor motor to be connected to the deceleration structure with unit weight output power larger and it saves human force in the running and the planet gear drive motor is not running along with outer rotor.
Description
Technical field
The present invention relates to a kind of motor, particularly a kind of electric wheel hub by driven by motor.
Background technology
Rotate (electric wheel hub) by the driven by motor wheel hub and be widely used in electric bicycle and other rotating mechanism.A kind of prior electric wheel hub is rotated by the direct driven wheel hub shell of motor, and still, because rotating speed of motor need be slower, the volume of motor is bigger usually.In order to reduce the volume of motor, a kind of in addition electric wheel hub adopts motor relatively at a high speed, again through for example planetary reduction gear transmission mechanism driven wheel hub shell rotation of reducing gear.But owing to adopt inner rotor motor, the internal rotor of motor rotates and directly links to each other with reducing gear, and the coil of this motor is on external rotor, and the size of the rotor of motor (internal rotor) is less, and the power output of Unit Weight (volume) is less.
Summary of the invention
Technical problem to be solved by this invention provides under a kind of same volume, the electric wheel hub that power output is bigger.
To achieve these goals, electric wheel hub provided by the invention comprises:
One motor shaft, this motor shaft is fixing not to rotate;
One passes through the hub shell that bearing links to each other with said motor shaft;
One motor stator that is fixedly linked with above-mentioned motor shaft;
It is characterized in that it also comprises,
One rotary motor outer rotor; And
Surely planetary reduction gear transmission mechanism, it comprises a sun gear, several planetary gears, gear ring and planet carrier, and said motor outer rotor and sun gear are fixedly linked, and said planetary gear drives said hub shell and rotates.
Further, the rotation axis of said planetary gear is fixed on the planet carrier, and said planet carrier and motor shaft are fixedly linked.
Further again, the said gear ring and the said hub shell of electric wheel hub provided by the invention link through an one-way clutch.
Electric wheel hub provided by the invention, owing to adopt external rotor electric machine, external rotor rotates and directly links to each other with reducing gear, the power output of Unit Weight (volume) is bigger, the electric wheel hub of same power, volume is taught little relatively, has very high use value.In addition; When being used for electric bicycle; When not having electric power or need be driven by manpower for power saving, the external rotor of planetary reduction gear transmission mechanism and motor is not along with rotation, like this; The power that driving the hub shell rotation needs significantly reduces, and the use of the electric bicycle of feasible this electric wheel hub of use is convenient.
Description of drawings
Fig. 1 is the structural representation of electric wheel hub provided by the invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
Referring to Fig. 1, the electric wheel hub that the utility model provides comprises motor shaft 1, motor stator 2, motor outer rotor 3, sun gear 5, planetary gear 6, planet carrier 8, gear ring 9, one-way clutch 10 and hub shell 11.Motor shaft 1 is fixing, and motor stator 2 is fixing with motor shaft 1.Motor outer rotor 3 links to each other with motor shaft 1 through bearing 31.When motor stator 2 energisings, motor outer rotor 3 rotates.Motor outer rotor 3 links to each other with sun gear 5, rotates so drive sun gear 5.Sun gear 5, planetary gear 6 and planet carrier 8 are formed planetary reduction gear transmission mechanism surely.The rotation axis 61 of planetary gear 6 is fixed on the planet carrier 8, and planet carrier 8 is fixedly linked with motor shaft.Gear ring 9 is a plate-like, and it contains an internal gear 91, and it is through this internal gear 91 and planetary gear 6 engagements, and like this, planetary gear 6 can drive gear ring 9 and rotate.Gear ring 9 links through one-way clutch 10 and hub shell 11.Hub shell 11 links to each other with motor shaft 1 through bearing 111.
One-way clutch 10 can adopt one-way clutch commonly used, and it can make gear ring 9 to drive hub shell 11 in a direction and rotate that when gear ring 9 rotated, gear ring 9 linked to each other with hub shell 11, rotates gear ring 9 and can drive hub shell 11 rotations; Otherwise when hub shell 11 rotated, hub shell 11 separated with gear ring 9, and hub shell 11 does not drive gear ring 9 and rotates.The one-way clutch 10 of present embodiment adopts ratchet structure, and it comprises foreign steamer 101 and interior wheel 102.Interior wheel 102 is provided with two pawl (not shown).Foreign steamer 101 is ratchets of teeth in containing.Above-mentioned pawl can mesh with above-mentioned interior teeth, guarantees one-directional rotation.Wheel 102 is fixing with gear ring 9 in above-mentioned, and foreign steamer 101 is fixedly linked with hub shell 11.
The description of top embodiment should not be the restriction to the protection range of the utility model, to those skilled in the art, on the basis of the foregoing description, still can do multiple variation, and its protection range should be defined by the claims.
Claims (2)
1. electric wheel hub, it comprises:
One motor shaft, this motor shaft is fixing not to rotate;
One stator that links to each other with above-mentioned motor shaft;
One passes through the hub shell that bearing links to each other with said motor shaft;
One external rotor;
Surely planetary reduction gear transmission mechanism, it comprises the sun gear and several planetary gears that are fixedly linked with above-mentioned external rotor;
It is characterized in that,
It also comprises a gear ring, and this gear ring comprises an internal gear, said internal gear and the engagement of said planetary gear, and said gear ring and said hub shell link through an one-way clutch; Said one-way clutch adopts ratchet structure, comprises a wheel and a foreign steamer in one, and said interior wheel is provided with two pawls; Said foreign steamer is the ratchet of teeth in containing, and said pawl and said interior teeth engagement guarantee one-directional rotation; Wheel is fixed with gear ring in said, and said foreign steamer and hub shell are fixedly linked; When motor stator was switched on, motor outer rotor rotated, and motor outer rotor links to each other with sun gear, rotated so drive sun gear; Planetary gear can drive gear ring and rotate, and gear ring can only drive hub shell in a direction and rotate, and when gear ring rotated, gear ring linked to each other with hub shell, rotates gear ring and can drive the hub shell rotation; Otherwise when hub shell rotated, hub shell separated with gear ring, and hub shell does not drive gear ring and rotates.
2. electric wheel hub as claimed in claim 1 is characterized in that the rotation axis of said planetary gear is fixed on the planet carrier, and said planet carrier and motor shaft are fixedly linked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510023443 CN1808856B (en) | 2005-01-19 | 2005-01-19 | Electric wheel hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510023443 CN1808856B (en) | 2005-01-19 | 2005-01-19 | Electric wheel hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1808856A CN1808856A (en) | 2006-07-26 |
| CN1808856B true CN1808856B (en) | 2012-02-22 |
Family
ID=36840607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510023443 Expired - Fee Related CN1808856B (en) | 2005-01-19 | 2005-01-19 | Electric wheel hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1808856B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050005B (en) * | 2009-11-06 | 2013-10-09 | 中国北方车辆研究所 | Mechanical and electrical integrated driving wheel system |
| CN102931787A (en) * | 2011-08-08 | 2013-02-13 | 吴小杰 | Hybrid composite three-dimensional permanent-magnet pumping unit motor |
| CN102957284A (en) * | 2011-08-18 | 2013-03-06 | 吴小杰 | Hybrid type permanent magnetism pumping unit motor |
| CN103001394B (en) * | 2012-10-09 | 2015-09-09 | 陈伟 | Bearing grease lubrication hybrid permanent magnet pumping-unit motor |
| CN103944305B (en) * | 2014-04-11 | 2016-04-13 | 苏州八方电机科技有限公司 | Electric bicycle hub motor device |
| CN103944306B (en) * | 2014-04-11 | 2016-04-13 | 苏州八方电机科技有限公司 | Electric bicycle hub motor |
| CN104033510B (en) * | 2014-04-11 | 2016-06-01 | 苏州八方电机科技有限公司 | Clutch apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2670155Y (en) * | 2003-12-19 | 2005-01-12 | 贺先兵 | Hub of electric bicycle |
-
2005
- 2005-01-19 CN CN 200510023443 patent/CN1808856B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2670155Y (en) * | 2003-12-19 | 2005-01-12 | 贺先兵 | Hub of electric bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1808856A (en) | 2006-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20120222 Termination date: 20180119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |