CN207889932U - A kind of drive mechanism on electric bicycle - Google Patents
A kind of drive mechanism on electric bicycle Download PDFInfo
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- CN207889932U CN207889932U CN201721800866.6U CN201721800866U CN207889932U CN 207889932 U CN207889932 U CN 207889932U CN 201721800866 U CN201721800866 U CN 201721800866U CN 207889932 U CN207889932 U CN 207889932U
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- gear
- case lid
- support shaft
- bevel gear
- concentric
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Abstract
The utility model discloses the drive mechanisms on a kind of electric bicycle, including built-in motor, the first bevel gear, the second bevel gear and drive shaft of rear wheel；Axis where the rotor of the built-in motor is vertical with the drive shaft of rear wheel, and the rotor is sequentially connected with first bevel gear by planet gear reducing mechanism；First bevel gear is engaged with second bevel gear transmission；Second bevel gear is concentric to be fixedly installed in described drive shaft of rear wheel one end；The rotor can drive drive shaft of rear wheel to rotate；The utility model has the advantages of simple structure, compact-sized using all-gear drive, and operation is more steady when riding, and improves the cruise mileage of vehicle, while also providing motor driving and providing extra power in addition to foot-operated, allows in ride more easily.
Description
Technical field
The utility model belongs to the drive mechanism on bicycle art more particularly to a kind of electric bicycle.
Background technology
Traditional mounted in medium of bicycle motor is all that the power exported by built-in motor drives chain to pass torsion using chain wheel
Move to the chain wheel of trailing wheel, chain wheel and the trailing wheel of trailing wheel are integrated, to realize electrically driven (operated) purpose, the efficiency of chain drive compared with
The low comfort for influencing bicyclist, and chain be easy it is bad be also easy thus to bicyclist bring inconvenience.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, the utility model to provide a kind of pure gear-driven
Built-in motor axis transmission structure on electric bicycle has the characteristics that compact-sized, stable.
Technical solution：To achieve the above object, the drive mechanism on a kind of electric bicycle of the utility model, including in
Set motor, the first bevel gear, the second bevel gear and drive shaft of rear wheel；Axis where the rotor of the built-in motor and the trailing wheel
Transmission shaft is vertical, and the rotor is sequentially connected with first bevel gear by planet gear reducing mechanism；First bevel gear
It is engaged with second bevel gear transmission；Second bevel gear is concentric to be fixedly installed in described drive shaft of rear wheel one end；Institute
Stating rotor can drive drive shaft of rear wheel to rotate.
Further, the built-in motor is located between five axises and trailing wheel of bicycle；Five axis passes through ratchet
Mechanism is concentric to be equipped with middle-mounted gear；
Further include transmission gear, the transmission gear and the concentric fixed installation of the first bevel gear set tooth in described
Wheel engages connection with transmission gear transmission；The rotating forward of five axises can drive the drive shaft of rear wheel to rotate.
Further, further include left case lid and right case lid；The left case lid is detachably buckled into body structure with right case lid；
The built-in motor, the first bevel gear, middle-mounted gear, transmission gear and planet gear reducing mechanism are installed on institute jointly
It states in left case lid and the babinet of the fastened formation of right case lid.
Further, support shaft, the support are also equipped in the left case lid and the babinet of the fastened formation of right case lid
Axis and the concentric setting of five axises, and the support shaft both ends are respectively fixedly connected on the inside of the left case lid and right case lid；
The support shaft difference is concentric to pass through first bevel gear, transmission gear, rotor and planet gear reducing mechanism
Axis hole；Wherein described first bevel gear is rotatablely connected with the support shaft by bearing, the axis hole of the transmission gear and institute
Support shaft clearance fit is stated, the rotor is rotatablely connected with the support shaft by bearing.
Further, the support shaft is concentric on the movement stator of the built-in motor close to one end of right case lid
Axis hole, the axis hole on the movement stator is interference fitted with the support shaft, and the movement stator and the support shaft are logical
Cross the connection of rotation stop keyway rotation stop；The movement stator is also fixedly installed in by several pins on the inside of the right case lid；
Further, the planet gear reducing mechanism includes sun gear, planet carrier, ring gear and planetary gear；
Sun gear connection integrated with the rotor coaxial heart, and the support shaft is concentric across the sun gear
Axis hole, and the axis hole of the sun gear and the support shaft clearance fit；
The planet carrier is cyclic structure, and the planet carrier inner ring is connected by bearing and the concentric rotation of the support shaft
Connect, and the planet carrier and the transmission gear synchronize be fixedly connected, planet wheel spindle is vertically installed on the planet carrier, it is described
Planetary gear is installed on by bearing on the planet wheel spindle；
The ring gear is fixedly installed on the inside of the right case lid, the planetary gear simultaneously with sun gear outer ring tooth and
Ring gear inner ring tooth engagement connects.
Advantageous effect：The utility model has the advantages of simple structure, compact-sized using all-gear drive, and operation is more flat when riding
Surely, it improves the cruise mileage of vehicle, while motor driving being also provided, extra power in addition to foot-operated is provided, allow in ride
More easily, the chain transmission mode of abandoning tradition effectively prevents chain-type bicycle and is easy chain, gets rusty, transmission efficiency
Not high drawback；The high deceleration ratio characteristic of planetary gear speed reducing mechanism is taken full advantage of, and then motor is made to provide bigger outputting torsion；Separately
Outside, motor power do not have electricity it is inadequate when, drive rotor operation by manually riding, brushless motor can also be converted to
Engine is power source charges.
Description of the drawings
Attached drawing 1 is the utility model structure principle chart.
Specific implementation mode
The utility model is further described below in conjunction with the accompanying drawings.
Drive mechanism on a kind of electric bicycle as shown in Fig. 1, including built-in motor, the first bevel gear 6, second
Bevel gear 7 and drive shaft of rear wheel 20；The 17 place axis of rotor of the built-in motor is vertical with the drive shaft of rear wheel 20, described
Rotor 17 is sequentially connected with first bevel gear 6 by planet gear reducing mechanism；First bevel gear 6 and second umbrella
The transmission engagement of gear 7；Second bevel gear 7 is concentric to be fixedly installed in 20 one end of the drive shaft of rear wheel；The rotor 17
Drive shaft of rear wheel 20 can be driven to rotate；Keep apparatus structure compacter using motor cooperation bevel gear drive mechanism, to greatest extent
Using space, while the chain transmission mode of abandoning tradition, it effectively prevents chain-type bicycle and is easy chain, gets rusty, be driven
Inefficient drawback.
The built-in motor is located between five axises 8 of bicycle and trailing wheel, in the present embodiment in set using
Brushless motor；Five axis 8 is equipped with middle-mounted gear 1 by the way that ratchet mechanism 2 is concentric, the ratchet mechanism 2 in the present embodiment
Identical with traditional ratchet principle of press disc type chain bicycle, the present embodiment no longer does repeated description；It further include transmission gear
19, the transmission gear 19 and first bevel gear, 6 concentric fixed installation, the middle-mounted gear 1 and the transmission gear
19 transmission engagements connect, and in the present embodiment, bicyclist passes through foot pedal and 8 turns of five axis, five axises 8 is driven to drive middle-mounted gear 1
Turning, middle-mounted gear 1 is with 19 turns of nutating gear, since transmission gear 19 and the first bevel gear 6 are integrated connections, transmission
Gear 19 and the first bevel gear 6 move synchronously, and then drive shaft of rear wheel 20 is driven to rotate, and finally drive trailing wheel；This programme is in electricity
Retain traditional five axises, 8 structure on the basis of dynamic, can also be ridden with foot-operated mode when motor out of power, in addition five axises
Also it uses gear to transmit torsion to trailing wheel, keeps transmission more steady.
Further include left case lid 5 and right case lid 10；The left case lid 5 is detachably buckled into body structure with right case lid 10；Institute
It states built-in motor, the first bevel gear 6, middle-mounted gear 1, transmission gear 19 and planet gear reducing mechanism and is installed on the left case jointly
Lid 5 is fastened with right case lid 10 in the babinet formed；Left case lid 5 and right case lid 10 form closed chamber after fastening, and play close
Protective effect is sealed, avoids internal gear into drawbacks such as aqueous corrosions.
Left case lid 5 described in the present embodiment fastens in the babinet formed with right case lid 10 and is also equipped with support shaft 13, institute
Support shaft 13 and five axis, 8 concentric setting are stated, and 13 both ends of the support shaft are respectively fixedly connected with 5 He of left case lid
10 inside of right case lid；The support shaft 13 is distinguished concentric across first bevel gear 6, transmission gear 19, rotor 17 and row
The axis hole of star wheel reducer structure；Wherein described first bevel gear 6 is rotatablely connected with the support shaft 13 by bearing, the transmission
The axis hole of gear 19 and 13 clearance fit of the support shaft, the rotor 17 are rotatablely connected with the support shaft 13 by bearing,
The support shaft 13 close to the concentric axis hole on the movement stator 15 of the built-in motor in one end of right case lid 10, in order to
Assembly precision is improved, the axis hole on movement stator 15 in the present embodiment is interference fitted with the support shaft 13, and the movement
Stator 15 is connect with the support shaft 13 by 22 rotation stop of rotation stop keyway；The movement stator 15, which is also fixed by several pins, pacifies
Loaded on 10 inside of the right case lid；Keep all parts structure further compact using 13 structure of support shaft, a fixed support
Axis 13 passes through each critical component, ensure that the concentricity of all parts in its support shaft 13, while in dismounting, maintenance and life
The superiority of the matching relationship can be embodied in production assembly technology.
The planet gear reducing mechanism includes sun gear 21, planet carrier 16, ring gear 18 and planetary gear 11；The sun gear
21 with the concentric integrated connection of the rotor 17, and the concentric axis hole across the sun gear 21 of the support shaft 13, and
The axis hole of the sun gear 21 and 13 clearance fit of the support shaft；The planet carrier 16 is cyclic structure, the planet carrier 16
Inner ring is by bearing and 13 concentric rotation connection of the support shaft, and the planet carrier 16 passes through pin and the transmission gear
19 synchronized links, planet wheel spindle 23 is vertically installed on the planet carrier 16, and the planetary gear 11 is installed on described by bearing
On planet wheel spindle 23；The ring gear 18 is fixedly installed in the inside of the right case lid 10, the planetary gear 11 simultaneously with it is described too
Sun 21 outer ring teeth of wheel are connected with 18 inner ring tooth engagement of ring gear；The high deceleration ratio characteristic for taking full advantage of planetary gear speed reducing mechanism, into
And motor is made to provide bigger outputting torsion.
Supplementary explanation：Reference numeral 14 in the present embodiment is bearing.
The above is only the preferred embodiment of the utility model, it should be pointed out that：For the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (6)
1. the drive mechanism on a kind of electric bicycle, it is characterised in that：Including built-in motor, the first bevel gear (6), the second umbrella
Gear (7) and drive shaft of rear wheel (20)；
Axis where the rotor (17) of the built-in motor is vertical with the drive shaft of rear wheel (20), the rotor (17) with it is described
First bevel gear (6) is sequentially connected by planet gear reducing mechanism；First bevel gear (6) and second bevel gear (7)
Transmission engagement；Second bevel gear (7) is concentric to be fixedly installed in the drive shaft of rear wheel (20) one end.
2. the drive mechanism on a kind of electric bicycle according to claim 1, it is characterised in that：The built-in motor position
In bicycle five axises (8) between trailing wheel；Five axis (8) sets tooth in being equipped with by the way that ratchet mechanism (2) is concentric
It takes turns (1)；
Further include transmission gear (19), the transmission gear (19) and the concentric fixed installation of first bevel gear (6) are described
Middle-mounted gear (1) engages connection with the transmission gear (19) transmission；Five axises (8) rotating forward can drive the drive shaft of rear wheel
(20) it rotates.
3. the drive mechanism on a kind of electric bicycle according to claim 2, it is characterised in that：It further include left case lid
(5) and right case lid (10)；The left case lid (5) is detachably buckled into body structure with right case lid (10)；
The built-in motor, the first bevel gear (6), middle-mounted gear (1), transmission gear (19) and planet gear reducing mechanism are pacified jointly
It is fastened in the babinet formed loaded on the left case lid (5) and right case lid (10).
4. the drive mechanism on a kind of electric bicycle according to claim 3, it is characterised in that：The left case lid (5)
It is fastened with right case lid (10) and is also equipped with support shaft (13) in the babinet formed, the support shaft (13) and five axis
(8) concentric setting, and the support shaft (13) both ends are respectively fixedly connected on the inside of the left case lid (5) and right case lid (10)；
The support shaft (13) is concentric respectively to pass through first bevel gear (6), transmission gear (19), rotor (17) and planet
Take turns the axis hole of deceleration mechanism；Wherein described first bevel gear (6) is rotatablely connected with the support shaft (13) by bearing, the biography
The axis hole of moving gear (19) and the support shaft (13) clearance fit, the rotor (17) pass through bearing with the support shaft (13)
Rotation connection.
5. the drive mechanism on a kind of electric bicycle according to claim 4, it is characterised in that：The support shaft (13)
Axis hole on the concentric movement stator (15) across the built-in motor in one end of right case lid (10), the movement stator
(15) axis hole on is interference fitted with the support shaft (13), and the movement stator (15) passes through only with the support shaft (13)
Turn key slot (22) rotation stop connects；The movement stator (15) is also fixedly installed in by several pins in the right case lid (10)
Side.
6. the drive mechanism on a kind of electric bicycle according to claim 4, it is characterised in that：The planetary gear slows down
Mechanism includes sun gear (21), planet carrier (16), ring gear (18) and planetary gear (11)；
The sun gear (21) and the concentric integrated connection of the rotor (17), and the support shaft (13) is concentric across institute
State the axis hole of sun gear (21), and the axis hole of the sun gear (21) and the support shaft (13) clearance fit；
The planet carrier (16) is cyclic structure, and planet carrier (16) inner ring is concentric by bearing and the support shaft (13)
Rotation connection, and the planet carrier (16) and the transmission gear (19) synchronize be fixedly connected, on the planet carrier (16) vertically
Planet wheel spindle (23) is installed, the planetary gear (11) is installed on by bearing on the planet wheel spindle (23)；
The ring gear (18) is fixedly installed on the inside of the right case lid (10), the planetary gear (11) and meanwhile with the sun gear
(21) outer ring tooth is connected with ring gear (18) inner ring tooth engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721800866.6U CN207889932U (en) | 2017-12-21 | 2017-12-21 | A kind of drive mechanism on electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721800866.6U CN207889932U (en) | 2017-12-21 | 2017-12-21 | A kind of drive mechanism on electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207889932U true CN207889932U (en) | 2018-09-21 |
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ID=63549245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721800866.6U Active CN207889932U (en) | 2017-12-21 | 2017-12-21 | A kind of drive mechanism on electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207889932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045493A (en) * | 2017-12-21 | 2018-05-18 | 无锡岚凌卓维动力科技有限公司 | A kind of built-in motor axis transmission structure on electric bicycle |
-
2017
- 2017-12-21 CN CN201721800866.6U patent/CN207889932U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045493A (en) * | 2017-12-21 | 2018-05-18 | 无锡岚凌卓维动力科技有限公司 | A kind of built-in motor axis transmission structure on electric bicycle |
| CN108045493B (en) * | 2017-12-21 | 2024-04-12 | 无锡岚凌卓维动力科技有限公司 | Centrally-mounted motor shaft transmission structure on electric bicycle |
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