CN201300959Y - Driving device of electric bicycle - Google Patents
Driving device of electric bicycle Download PDFInfo
- Publication number
- CN201300959Y CN201300959Y CNU2008201992926U CN200820199292U CN201300959Y CN 201300959 Y CN201300959 Y CN 201300959Y CN U2008201992926 U CNU2008201992926 U CN U2008201992926U CN 200820199292 U CN200820199292 U CN 200820199292U CN 201300959 Y CN201300959 Y CN 201300959Y
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- motor
- rotor
- wheel hub
- miniature gears
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- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 230000006870 function Effects 0.000 description 2
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- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
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Abstract
The utility model discloses a driving device of an electric bicycle, which comprises two frame fixed shafts. The outer ends of the two frame fixed shafts are respectively fixed at a frame; the two frame fixed shafts are provided with wheel hubs through bearings; each wheel hub is internally provided with an electric motor which drives the wheel hub to rotate; the electric motor is in a structure of an outside stator and an inside rotor; two ends of the casing of the electric motor are respectively fixed at the inner ends of the two frame fixed shafts; a stator coil is fixed in the casing of the electric motor; a rotor is arranged in the stator coil; a first stage pinion is arranged on the main shaft of the electric motor on the rotor, and is meshed with three first stage gears; the gear shaft of the first gears penetrates out of the bearings on the casing of the electric motor and is provided with a second stage pinion which is meshed with an inner tooth ring; and the inner tooth ring is connected with and fixed at the wheel hubs. The utility model has the advantages of long service life, reliable operation, simple structure, convenient maintenance and high operation efficiency.
Description
Technical field
The utility model relates to a kind of actuating device of Electrical Bicycle.
Background technology
Battery-driven car is as a kind of new transportation vehicles, huge numbers of families have been come into, it is a kind of nothing discharging, noise-free city walking-replacing tool, Electrical Bicycle is to provide direct supply to come the driving motor of drive installation on bicycle by the storage battery that is installed on the bicycle, drive cycle wheel by electrical motor by axle (or chain, belt etc.) again, bicycle is run at high speed.
The actuating device of Electrical Bicycle is multifarious, has low speed that brush electrical motor, low speed brushless motor are arranged, have at a high speed be brushed with the tooth electrical motor, high-speed brushless has tooth electrical motor etc.But low-speed motor Heavy Weight, consumable material is big, the brush electrical motor is arranged owing to have brush-commutated mechanism, the life-span and the reliability of electrical motor are reduced greatly, and the high speed of using in the market the tooth electrical motor is arranged is that to adopt plastics be raw-material transmission gear, its life-span and reliability are all relatively poor, and especially under the lower situation of ambient temperature, reliability is poorer.
Summary of the invention
The utility model purpose is: a kind of actuating device of Electrical Bicycle is provided, adopt do not have and to be brushed with tooth direct current high-speed motor, and in light weight, noise is low, efficient is high, the life-span is long, good reliability.
The technical solution of the utility model is: a kind of actuating device of Electrical Bicycle, comprise two vehicle frame anchor shafts, the outer end of two vehicle frame anchor shafts is fixed with vehicle frame respectively, by bearing installation wheel hub is arranged on two vehicle frame anchor shafts, motor is installed in the wheel hub, the driven by motor wheel hub rotates, described motor is the external stator inner rotor core, the two ends of motor housing are fixed with the inner of two vehicle frame anchor shafts respectively, the motor housing internal fixation has stator coil, rotor is installed in the stator coil, the one-level miniature gears is installed on the epitrochanterian electric machine main shaft, the one-level pinion has three one-level big gear wheels, the gear wheel shaft of three one-level big gear wheels is separately fixed on the end cap of motor housing, the passing the bearing on the motor housing and the secondary miniature gears be installed of the gear wheel shaft of one of them one-level big gear wheel, secondary miniature gears and internally toothed annulus engagement, internally toothed annulus and wheel hub are connected and fixed.
In the technique scheme, between described internally toothed annulus and the wheel hub overriding clutch is installed;
Described rotor comprises rotor core and the rare-earth magnet that is installed on the rotor core;
Described one-level miniature gears and three one-level big gear wheels all adopt the helical teeth engagement.
The utility model advantage is:
1. the utility model is a DC Brushless Motor, and the mechanical contact mechanism that absence of commutator and brush are formed is so the life-span is long, reliable, simple in structure, easy to maintenance, operating efficiency is high.
2. the utility model adopts one-level miniature gears and one-level big gear wheel, secondary miniature gears and internally toothed annulus double underdrive train, makes that electric motor structure is light and handy, output torque is big, consumption of raw material is few.
3. all transmission gears of the present utility model all adopt the alloy steel manufacturing, the intensity height, and the life-span is long, and work is not placed restrictions on by ambient air temperature.
4. because the drive mechanism that adopts the interior external toothing of one-level miniature gears and one-level big gear wheel, secondary miniature gears and internally toothed annulus to combine makes the train compact conformation.
5. transmission gear of the present utility model adopts helical teeth or a little straight-toothed gear teeth forms of gear low speed turbine stage of high speed level, then makes strength of gear teeth height, stable drive, and the transmission noise is little.
6. all bearings of the present utility model all adopt antifriction-bearing box, and frictional loss is reduced to minimum, are to adopt sealed bearings at the bearing that contacts with the outside, make rainwater etc. can not invade motor interior.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the structural representation of embodiment one;
Fig. 2 is the structural representation of embodiment two.
Wherein: 1 vehicle frame anchor shaft; 2 vehicle frames; 3 wheel hubs; 4 motors; 5 motor housings; 6 stator coils; 7 rotors; 8 electric machine main shafts; 9 one-level miniature gearss; 10 one-level big gear wheels; 11 gear wheel shafts; 12 secondary miniature gearss; 13 internally toothed annuluss; 14 end caps; 15 overriding clutchs; 16 rotor cores; 17 rare-earth magnets.
The specific embodiment
Embodiment one: as shown in Figure 1, a kind of actuating device of Electrical Bicycle, comprise two vehicle frame anchor shafts 1, the outer end of two vehicle frame anchor shafts 1 is fixing with vehicle frame 2 respectively, by bearing installation wheel hub 3 is arranged on two vehicle frame anchor shafts 1, motor 4 is installed in the wheel hub 3, motor 4 drives wheel hub 3 and rotates, described motor 4 is the external stator inner rotor core, the two ends of motor housing 5 are fixed with the inner of two vehicle frame anchor shafts 1 respectively, motor housing 5 internal fixation have stator coil 6, rotor 7 is installed in the stator coil 6, rotor 7 comprises rotor core 16 and the rare-earth magnet 17 that is installed on the rotor core 16, on the electric machine main shaft 8 on the rotor 7 one-level miniature gears 9 is installed, one-level miniature gears 9 is engaged with three one-level big gear wheels 10, one-level miniature gears 9 and three one-level big gear wheels 10 adopt the helical teeth engagement, the gear wheel shaft 11 of three one-level big gear wheels 10 is separately fixed on the end cap 14 of motor housing 5, the passing the bearing on the motor housing 5 and secondary miniature gears 12 be installed of the gear wheel shaft 11 of one of them one-level big gear wheel 10, secondary miniature gears 12 and internally toothed annulus 13 engagements, internally toothed annulus 13 is connected and fixed with wheel hub 3.
Embodiment two: as shown in Figure 2, a kind of actuating device of Electrical Bicycle, comprise two vehicle frame anchor shafts 1, the outer end of two vehicle frame anchor shafts 1 is fixing with vehicle frame 2 respectively, by bearing installation wheel hub 3 is arranged on two vehicle frame anchor shafts 1, motor 4 is installed in the wheel hub 3, motor 4 drives wheel hub 3 and rotates, described motor 4 is the external stator inner rotor core, the two ends of motor housing 5 are fixed with the inner of two vehicle frame anchor shafts 1 respectively, motor housing 5 internal fixation have stator coil 6, rotor 7 is installed in the stator coil 6, rotor 7 comprises rotor core 16 and the rare-earth magnet 17 that is installed on the rotor core 16, on the electric machine main shaft 8 on the rotor 7 one-level miniature gears 9 is installed, one-level miniature gears 9 is engaged with three one-level big gear wheels 10, one-level miniature gears 9 and three one-level big gear wheels 10 adopt the helical teeth engagement, the gear wheel shaft 11 of three one-level big gear wheels 10 is separately fixed on the end cap 14 of motor housing 5, the passing the bearing on the motor housing 5 and secondary miniature gears 12 be installed of the gear wheel shaft 11 of one of them one-level big gear wheel 10, secondary miniature gears 12 and internally toothed annulus 13 engagements, internally toothed annulus 13 drives wheel hub 3 by overriding clutch 15.
During work, electric current is by stator coil 6, by the Hall element exchange system, make rotor 7 high speed revolutions that rare-earth magnet 17 is installed, and by double reduction system direct drive wheel hub 3, make the Electrical Bicycle wheel, and cooperate, can have electromagnetic braking brake function and car-backing function with controller.
Rotor 7 and one-level miniature gears 9 that motor 4 comprises motor housing 5, stator coil 6, be made up of rotor core 16 and rare-earth magnet 17 are formed, one-level miniature gears 9 adopts displacement helical teeth and three one-level big gear wheel 10 engagements, form planetary reduction systems, can eliminate undercut and improve intensity, reduce noise.
Motor housing 5 is fixed into one with vehicle frame anchor shaft 1, with vehicle frame 2 no relative motions.
Hall element has three, sampling motor rotor position signal, and power supply motivation controller is realized the effective control to electrical motor.
The total double reduction of train is formed, be to adopt dead axle line train, the axial location of whole transmission gears of train is all fixed when transmission, intermediate drive gear adopts three identical wheels transmissions simultaneously, the load of each gear is reduced greatly, fully improved the reliability and the load-carrying capacity of train, the transmission scheme that engagement and external toothing combined in a whole set of train adopted, make whole train compact conformation, make full use of intracavity space.One-level miniature gears 9 and three one-level big gear wheel 10 gears adopt helical teeth, and secondary miniature gears 12 adopts straight-tooth with internally toothed annulus 13.Adopt helical teeth can improve the strength of gear teeth, improve transmission stability, reduce the noise that gear transmission produces.Design during train to the Dou of helical teeth to reasonably selecting with the size at Dou angle, can offset the axial force that the transmission of Dou tooth produces.
One-level miniature gears 9 and 10 engagements of one-level big gear wheel are realized first order deceleration.With the secondary miniature gears 12 and inner gear 13 engagements that one-level big gear wheel 10 is fixed together, realize second stage deceleration, total reduction gear ratio is the product of double reduction ratio, big reduction ratio has improved the output torque of electrical motor effectively.
All gears all adopt alloy steel to make, thereby have improved the reliability and the service life of train.Be not subjected to simultaneously the temperature effect of environment for use, can normally move equally at ice box.
Antifriction-bearing box is all adopted at the relative motion position of all trains, reduces frictional loss, improves driving efficiency.
Overriding clutch 15 is made up of spring, ejector pin, roller and star-wheel, and power-transfer clutch combination automatically when electrical motor moves drives the running of battery-driven car wheel, and when electrical motor was out of service, power-transfer clutch was thrown off automatically, and wheel can slide forward under the minimized friction resistance.
In embodiment one, double reduction gear direct drive wheel hub 3, no overriding clutch 15 in this organization plan, but can realize the ahead and astern transmission, and utilize this behavior of structure can realize the electromagnetic braking brake, electromagnetic braking is braked and is brought a lot of benefits to Electrical Bicycle: do not have the machinery friction during as drag, then can not damage hardware, noiselessness, freedom from repairs, wheel does not have drift during brake, improves the driving safety of Electrical Bicycle.
Electronic shell 5 adopts efficient sealed close medium, and sealing property is superior, and operation is not influenced by amblent air temperature.
Claims (4)
1. the actuating device of an Electrical Bicycle, comprise two vehicle frame anchor shafts (1), the outer end of two vehicle frame anchor shafts (1) is fixing with vehicle frame (2) respectively, two vehicle frame anchor shafts (1) are gone up has wheel hub (3) by bearing installation, motor (4) is installed in the wheel hub (3), motor (4) drives wheel hub (3) and rotates, it is characterized in that: described motor (4) is the external stator inner rotor core, the two ends of motor housing (5) are fixed with the inner of two vehicle frame anchor shafts (1) respectively, motor housing (5) internal fixation has stator coil (6), rotor (7) is installed in the stator coil (6), on the electric machine main shaft (8) on the rotor (7) one-level miniature gears (9) is installed, one-level miniature gears (9) is engaged with three one-level big gear wheels (10), the gear wheel shaft (11) of three one-level big gear wheels (10) is separately fixed on the end cap (14) of motor housing (5), the passing the bearing on the motor housing (5) and secondary miniature gears (12) be installed of the gear wheel shaft (11) of one of them one-level big gear wheel (10), secondary miniature gears (12) and internally toothed annulus (13) engagement, internally toothed annulus (13) is connected and fixed with wheel hub (3).
2. the actuating device of Electrical Bicycle according to claim 1 is characterized in that: between described internally toothed annulus (13) and the wheel hub (3) overriding clutch (15) is installed.
3. the actuating device of Electrical Bicycle according to claim 1 is characterized in that: described rotor (7) comprises rotor core (16) and is installed in rare-earth magnet (17) on the rotor core (16).
4. the actuating device of Electrical Bicycle according to claim 1 is characterized in that: described one-level miniature gears (9) and three one-level big gear wheels (10) all adopt the helical teeth engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201992926U CN201300959Y (en) | 2008-11-21 | 2008-11-21 | Driving device of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201992926U CN201300959Y (en) | 2008-11-21 | 2008-11-21 | Driving device of electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201300959Y true CN201300959Y (en) | 2009-09-02 |
Family
ID=41084579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201992926U Expired - Fee Related CN201300959Y (en) | 2008-11-21 | 2008-11-21 | Driving device of electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201300959Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437683A (en) * | 2011-10-20 | 2012-05-02 | 秦廷修 | Two-stage gear automatic speed regulating motor of electric motorcycle |
| CN102951248A (en) * | 2011-08-25 | 2013-03-06 | 麦克森发电机股份公司 | Electric wheel hub drive for a vehicle, in particular for a bicycle |
| CN117262094A (en) * | 2023-11-13 | 2023-12-22 | 重庆市佳南工贸有限公司 | Driving device and installation structure based on hub transmission |
-
2008
- 2008-11-21 CN CNU2008201992926U patent/CN201300959Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951248A (en) * | 2011-08-25 | 2013-03-06 | 麦克森发电机股份公司 | Electric wheel hub drive for a vehicle, in particular for a bicycle |
| CN102437683A (en) * | 2011-10-20 | 2012-05-02 | 秦廷修 | Two-stage gear automatic speed regulating motor of electric motorcycle |
| CN117262094A (en) * | 2023-11-13 | 2023-12-22 | 重庆市佳南工贸有限公司 | Driving device and installation structure based on hub transmission |
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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: 20090902 Termination date: 20141121 |
|
| EXPY | Termination of patent right or utility model |