CN2574294Y - Motor-driven hub - Google Patents
Motor-driven hub Download PDFInfo
- Publication number
- CN2574294Y CN2574294Y CN 02248805 CN02248805U CN2574294Y CN 2574294 Y CN2574294 Y CN 2574294Y CN 02248805 CN02248805 CN 02248805 CN 02248805 U CN02248805 U CN 02248805U CN 2574294 Y CN2574294 Y CN 2574294Y
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- China
- Prior art keywords
- motor
- gear
- bearing
- level
- reducing
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Abstract
The utility model relates to an electric wheel hub for an electric vehicle, which comprises a hub shell, a fixed shaft, a motor, a speed-reducing mechanism and a clutch mechanism, wherein, a bearing is arranged between the hub shell and the fixed shaft. The motor is a columnar motor, and the fixed shaft and the outer shell of the columnar motor are integrally connected. The first level gear speed-reducing mechanism is composed of a first level speed-reducing pinion and a first level speed-reducing big gear, and the first level speed-reducing pinion is arranged on a rotor shaft of the columnar motor. A shaft of the first level speed-reducing big gear is penetrated outside the outer shell of the motor, and a bearing is arranged between the shaft and the outer shell of the motor. A bearing is arranged on an electric brush holder of the columnar motor, and is embedded into the first level speed-reducing big gear, and the clutch mechanism is a ratchet wheel which is arranged at the inner side of the hub shell. An outer ring of the ratchet wheel is provided with a toothed secondary speed-reducing big gear which is engaged with a secondary speed-reducing pinion to form a secondary gear speed-reducing mechanism. The utility model has the advantages of simple and compact structure, less parts, low cost and strong climbing capacity.
Description
(1) technical field
The utility model relates to a kind of electric wheel hub of electric vehicles.
(2) background technology
The electric wheel hub of motor vehicle comprises hub shell, fixed axis, motor, reducing gear and clutch, is provided with bearing between hub shell and the fixed axis, and motor via reducer structure, clutch drive the hub shell, to wheel, make vehicle make powered travel power transmission.When driving with manpower, then the flywheel of installing by the hub shell outside passes to power on the wheel, and at this moment clutch is thrown off hub shell and motor.
The electric wheel hub that uses as shown in Figure 1 at present: by the pinion 2 of the first class reducer structure on the disc type electric machine 1 that is installed on the inner support 9, drive the gear wheel 3 of first class reducer structure and the pinion 4 of two reduction gear, and then drive the gear wheel 5 of two reduction gear again, by being installed in the ratchet 6 of gear wheel 5 one sides on the two reduction gear, drive the hub shell 7 transmission power that are installed on the fixed axis 8.The disc type electric machine that above-mentioned electric wheel hub adopted exists following problem: overload capacity is little, moment is little when starting; The brush of disc type electric machine directly rubs as the printed wire of coil, poor durability; The price height.
(3) summary of the invention
The purpose of this utility model is to provide a kind of electric wheel hub of more reasonable structure.
For achieving the above object, the utility model is by the following technical solutions:
A kind of electric wheel hub comprises hub shell, fixed axis, motor, reducing gear and clutch, is provided with bearing between hub shell and the fixed axis, and described motor is the pillar motor.
Technique scheme can also be further improved by following technical measures.
Described fixed axis and pillar motor housing are connected as a single entity.
Described reducing gear comprises primary gear speed reducing mechanism and second gear reduction unit structure, is provided with primary gear speed reducing mechanism in the pillar motor.
Described primary gear speed reducing mechanism is made of one-level reduction pinion teeth and one-level deceleration gear wheel, and the one-level reduction pinion teeth is located on the armature spindle of pillar motor, and the axle of one-level deceleration gear wheel passes from motor housing, is provided with bearing between this axle and the motor housing.
One bearing is housed on the brush carrier of described pillar motor, and this bearing embeds one-level deceleration gear wheel.
Described second gear reduction unit structure comprises the double reduction pinion, and the double reduction pinion is contained on the axle of one-level deceleration gear wheel.
Described clutch is a ratchet, and ratchet is contained in hub shell inboard, and the outer ring of ratchet is provided with profile of tooth and forms the double reduction gear wheel, and double reduction gear wheel and double reduction pinion constitute the second gear reduction unit structure.This directional overrunning clutch of ratchet is mainly used in electric bicycle, can adopt the clutch of other form on the on-electric bicycle.
Described ratchet is made of outer ring, ball, back-up ring, pawl-and-gearing seat, and pawl seat is fixed on the ring seat of hub shell inboard.Above-mentioned mounting means is that pillar connects, and also can adopt the disc type side to connect.
The two ends of the armature spindle of described pillar motor by Bearing Installation in the motor housing inboard.
The utlity model has following advantage:
1, part is few.Electric wheel hub than existing band reducing gear lacks an inner support, two axles
Hold, a ratchet.The connecting shaft motor casing is made inner support and is used, and adopts ratchet and double reduction big
The gear integral structure can be economized two bearings, an axle, a ratchet.Production cost is subtracted
Few.Save space in the hub shell simultaneously, can the low pillar motor of use cost.
2, adopt coupling type band one-level reducing motor.The electric machine built-in one-level is slowed down, and makes the output shaft rotating speed
Low, can drive the hub shell by double reduction, make wheel obtain desired rotating speed and moving
Power.Rotating speed as requested and power.As requested, armature spindle and fixed axis centres
Or biasing, armature spindle and shell and fixed axis are connected as a single entity, and have increased the rigidity of fixed axis.
3, owing to adopt the pillar motor, its diameter is littler than disc type electric machine, makes hub shell diameter reduce, from
And the manufacturing cost of hub shell reduces.
4, the pillar motor of Cai Yonging is a high-speed electric expreess locomotive, than slowspeed machine efficient height.
In a word, the utility model is simple and compact for structure, and part is few, and cost is low, efficient height, climbing energy
Power is strong.
(4) description of drawings
Fig. 1 is the structural representation of known electric runner hub;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the structural representation of ratchet.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Shown in Fig. 2,3, a kind of electric wheel hub, comprise hub shell, fixed axis 10, motor, reducing gear and clutch, the hub shell comprises bar dish 20 and bar disk cover 21, the bar dish 20 and bar disk cover 21 outsides are formed with bearing pedestal, be provided with bearing between bearing pedestal and the fixed axis 10, described motor is a pillar motor 30.
The shell of pillar motor 30 comprises main body and lid, and described two fixed axis 10 are connected as a single entity with the main body and the lid of pillar motor 30 respectively.
Described reducing gear comprises primary gear speed reducing mechanism and second gear reduction unit structure, is provided with primary gear speed reducing mechanism in the pillar motor 30.
Described primary gear speed reducing mechanism is made of one-level reduction pinion teeth and one-level deceleration gear wheel 41, the one-level reduction pinion teeth is located on the armature spindle 31 of pillar motor 30, the axle of one-level deceleration gear wheel 41 passes from the lid of pillar motor 30, is provided with bearing between this axle and the lid.
The brush carrier 32 of described pillar motor 30 is provided with projection, and a bearing is housed on the projection, and this bearing embeds one-level deceleration gear wheel 41.
Described second gear reduction unit structure comprises double reduction pinion 42, and double reduction pinion 42 is contained on the axle of one-level deceleration gear wheel 41.
Described clutch is a ratchet 50, and ratchet 50 is contained in bar disk cover 21 inboards, and the outer ring of ratchet 50 is provided with profile of tooth and forms double reduction gear wheel 43, and double reduction gear wheel 43 constitutes the second gear reduction unit structure with 42 engagements of double reduction pinion.
Described ratchet 50 is made of outer ring, ball 51, back-up ring 52, ratchet 53 and pawl seat 54, and pawl seat 54 is fixed on the ring seat of bar disk cover 21 inboards.
The two ends of the armature spindle 31 of described pillar motor 30 are inboard in pillar motor 30 main bodys and lid by Bearing Installation respectively.
Claims (9)
1, a kind of electric wheel hub comprises hub shell, fixed axis, motor, reducing gear and clutch, is provided with bearing between hub shell and the fixed axis, it is characterized in that: described motor is the pillar motor.
2, electric wheel hub according to claim 1 is characterized in that: described fixed axis and pillar motor housing are connected as a single entity.
3, electric wheel hub according to claim 1 and 2 is characterized in that: described reducing gear comprises primary gear speed reducing mechanism and second gear reduction unit structure, is provided with primary gear speed reducing mechanism in the pillar motor.
4, electric wheel hub according to claim 3, it is characterized in that: described primary gear speed reducing mechanism is made of one-level reduction pinion teeth and one-level deceleration gear wheel, the one-level reduction pinion teeth is located on the armature spindle of pillar motor, the axle of one-level deceleration gear wheel passes from motor housing, is provided with bearing between this axle and the motor housing.
5, electric wheel hub according to claim 4 is characterized in that: a bearing is housed on the brush carrier of described pillar motor, and this bearing embeds one-level deceleration gear wheel.
6, electric wheel hub according to claim 5 is characterized in that: described second gear reduction unit structure comprises the double reduction pinion, and the double reduction pinion is contained on the axle of one-level deceleration gear wheel.
7, electric wheel hub according to claim 6, it is characterized in that: described clutch is a ratchet, ratchet is contained in hub shell inboard, and the outer ring of ratchet is provided with profile of tooth and forms the double reduction gear wheel, and double reduction gear wheel and double reduction pinion constitute the second gear reduction unit structure.
8, electric wheel hub according to claim 7 is characterized in that: described ratchet is made of outer ring, ball, back-up ring, pawl-and-gearing seat, and pawl seat is fixed on the ring seat of hub shell inboard.
9, electric wheel hub according to claim 4 is characterized in that: the two ends of the armature spindle of described pillar motor by Bearing Installation in the motor housing inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02248805 CN2574294Y (en) | 2002-10-19 | 2002-10-19 | Motor-driven hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02248805 CN2574294Y (en) | 2002-10-19 | 2002-10-19 | Motor-driven hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574294Y true CN2574294Y (en) | 2003-09-17 |
Family
ID=33719363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02248805 Expired - Fee Related CN2574294Y (en) | 2002-10-19 | 2002-10-19 | Motor-driven hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574294Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751815A (en) * | 2012-07-13 | 2012-10-24 | 上海欧特传动机电有限公司 | Speed reduction motor |
-
2002
- 2002-10-19 CN CN 02248805 patent/CN2574294Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751815A (en) * | 2012-07-13 | 2012-10-24 | 上海欧特传动机电有限公司 | Speed reduction motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Xinhua Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |