CN2763107Y - Electric wheel boss - Google Patents
Electric wheel boss Download PDFInfo
- Publication number
- CN2763107Y CN2763107Y CN 200520039110 CN200520039110U CN2763107Y CN 2763107 Y CN2763107 Y CN 2763107Y CN 200520039110 CN200520039110 CN 200520039110 CN 200520039110 U CN200520039110 U CN 200520039110U CN 2763107 Y CN2763107 Y CN 2763107Y
- Authority
- CN
- China
- Prior art keywords
- motor
- electric
- outer rotor
- wheel boss
- wheel
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to an electric wheel boss. An outer rotor of a motor is fixedly connected with a sun wheel; a planet wheel can drive a wheel boss casing to rotate. An electric wheel boss provided by the utility model has the advantages that the output power of unit weight (volume) is large, and the volume of the electric wheel boss of the same power is smaller, caused by that a motor with an outer rotor is adopted and the outer rotor can rotate and can be directly connected with a speed reducing mechanism. In addition, when the utility model is used for an electric bicycle, and the electric wheel boss needs the driving of manpower caused by no electric power or electricity saving, a planet speed reducing gear transmission mechanism and the outer rotor of the motor can not carry out following rotation. In this way, force which is required for driving the wheel boss casing to rotate is reduced, causing that the use of the electric bicycle using the electric wheel boss is easier and more convenient.
Description
Technical field
The utility model 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 Electrical Bicycle and other rotating mechanism.A kind of existing 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, another electric wheel hub adopts high-revolving relatively motor, again through for example planetary reduction gear transmission device driven wheel hub shell rotation of speed reduction gearing.But owing to adopt inner rotor motor, the internal rotor of motor rotates and directly links to each other with speed reduction gearing, and the coil of this motor is on outer rotor, and the size of the rotor of motor (internal rotor) is less, and the horsepower output of unit weight (volume) is less.
The utility model content
Technical problem to be solved in the utility model provides under a kind of same volume, the electric wheel hub that horsepower output is bigger.
To achieve these goals, the electric wheel hub that provides of the utility model comprises:
One motor shaft, this motor shaft maintains static moving;
One hub shell that links to each other with described motor shaft by bearing;
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 device, it comprises a sun wheel, several satellite gears, gear ring and pinion carrier, and described motor outer rotor and sun wheel are fixedly linked, and described satellite gear drives described hub shell and rotates.
Further, the turning cylinder of described satellite gear is fixed on the pinion carrier, and described pinion carrier and motor shaft are fixedly linked.
Further again, the described gear ring and the described hub shell of the electric wheel hub that the utility model provides link by a free-wheel clutch.
The electric wheel hub that the utility model provides, owing to adopt external rotor electric machine, outer rotor rotates and directly links to each other with speed reduction gearing, the horsepower output of unit weight (volume) is bigger, the electric wheel hub of same power, volume is taught little relatively, has very high value of service.In addition, when being used for Electrical Bicycle, when not having electric power or need drive by manpower for power saving, the outer rotor of planetary reduction gear transmission device 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 Electrical Bicycle of feasible this electric wheel hub of use is convenient.
Description of drawings
Fig. 1 is the structural representation of the electric wheel hub that provides of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is 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 wheel 5, satellite gear 6, pinion carrier 8, gear ring 9, free-wheel 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 by bearing 31.When motor stator 2 energisings, motor outer rotor 3 rotates.Motor outer rotor 3 links to each other with sun wheel 5, rotates so drive sun wheel 5.Sun wheel 5, satellite gear 6 and pinion carrier 8 are formed planetary reduction gear transmission device surely.The turning cylinder 61 of satellite gear 6 is fixed on the pinion carrier 8, and pinion carrier 8 is fixedly linked with motor shaft.Gear ring 9 is a plate-like, and it contains an inner gear 91, and it is by this inner gear 91 and satellite gear 6 engagements, and like this, satellite gear 6 can drive gear ring 9 and rotate.Gear ring 9 links by free-wheel clutch 10 and hub shell 11.Hub shell 11 links to each other with motor shaft 1 by bearing 111.
Free-wheel clutch 10 can adopt free-wheel 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 free-wheel 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 unidirectional 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 protection domain of the present utility model, to those skilled in the art, on the basis of the foregoing description, still can do multiple variation, and its protection domain should be defined by the claims.
Claims (3)
1, a kind of electric wheel hub, it comprises:
One motor shaft, this motor shaft maintains static moving;
One hub shell that links to each other with described motor shaft by bearing;
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 device, it comprises a sun wheel, several satellite gears, gear ring and pinion carrier, and described motor outer rotor and sun wheel are fixedly linked, and described satellite gear drives described hub shell and rotates.
2, electric wheel hub as claimed in claim 1 is characterized in that, the turning cylinder of described satellite gear is fixed on the pinion carrier, and described pinion carrier and motor shaft are fixedly linked.
3, electric wheel hub as claimed in claim 1 is characterized in that, described gear ring and described hub shell link by a free-wheel clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039110 CN2763107Y (en) | 2005-01-19 | 2005-01-19 | Electric wheel boss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039110 CN2763107Y (en) | 2005-01-19 | 2005-01-19 | Electric wheel boss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2763107Y true CN2763107Y (en) | 2006-03-08 |
Family
ID=36140654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520039110 Expired - Lifetime CN2763107Y (en) | 2005-01-19 | 2005-01-19 | Electric wheel boss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2763107Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108128400A (en) * | 2018-01-16 | 2018-06-08 | 岭南师范学院 | A kind of new type electric bicycle transmission mechanism |
-
2005
- 2005-01-19 CN CN 200520039110 patent/CN2763107Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108128400A (en) * | 2018-01-16 | 2018-06-08 | 岭南师范学院 | A kind of new type electric bicycle transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150119 Granted publication date: 20060308 |