CN208602636U - A kind of transmission system can be used for national standard electric bicycle - Google Patents
A kind of transmission system can be used for national standard electric bicycle Download PDFInfo
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- CN208602636U CN208602636U CN201821337033.5U CN201821337033U CN208602636U CN 208602636 U CN208602636 U CN 208602636U CN 201821337033 U CN201821337033 U CN 201821337033U CN 208602636 U CN208602636 U CN 208602636U
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- wheel
- national standard
- electric bicycle
- transmission system
- change pulley
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Abstract
The utility model relates to electric bicycles, a kind of transmission system can be used for national standard electric bicycle is provided, including the preceding sprocket wheel being connect with pedal by rotating shaft transmission, the rear flywheel being connect with rear wheel drive, the change pulley for being equipped between preceding sprocket wheel and rear flywheel and being rotatably connected in the middle part of vehicle frame, the change pulley includes the pinion gear being fixedly connected and gear wheel, and the pinion gear of change pulley and preceding sprocket wheel are sequentially connected, and gear wheel and rear flywheel are sequentially connected.The utility model meets new national standard defined, is applied to slide plate electric bicycle pedal plate distance and increases space, reliability improves, more durable.
Description
Technical field
The utility model relates to electric bicycles, and in particular to a kind of transmission system that can be used for national standard electric bicycle.
Background technique
The new energy vehicles of the electric bicycle as green energy conservation emission reduction, institute's role is more next in terms of trip
It is more important；Therefore a series of revised standards pass through in country, just put into effect " GB17761-2018 electric bicycle safety standard ".And one
Qualified electric bicycle meets national standard first, it is desirable that bicyclist rides 5 kilometers or more in 30min.By discussion
And through testing and verification, it is found that new state is not achieved in transmission system composed by existing preceding sprocket wheel (32/28 tooth) and rear flywheel (16 tooth)
Target requirement.Therefore it is in the prior art have the following disadvantages 1) before sprocket wheel (32/28 tooth), rear flywheel (16 tooth), regulation when
It is interior that distance of riding is not achieved；2) when riding, chain easily loosens, if deceleration strip or potted road surface easily fall chain excessively.
Summary of the invention
The utility model is to solve to be unable to satisfy the defect of new national standard requirement in the prior art, provides one kind and can satisfy and wants
It asks, steady electric bicycle transmission system.
The utility model is implemented with the following technical solutions,
A kind of transmission system can be used for national standard electric bicycle, including the preceding chain being connect with pedal by rotating shaft transmission
Wheel, the rear flywheel connecting with rear wheel drive are equipped with the change pulley being rotatably connected with vehicle frame middle part between preceding sprocket wheel and rear flywheel,
The change pulley includes the pinion gear being fixedly connected and gear wheel, and the pinion gear of change pulley and preceding sprocket wheel are sequentially connected, gear wheel
It is sequentially connected with rear flywheel.
Preferably, the gear wheel of the change pulley is 18 teeth, and pinion gear is 12 teeth.
Preferably, the rear flywheel drives rear wheel movement using 16 teeth.
Preferably, the rear flywheel drives rear wheel movement using 12 teeth.
The utility model is beneficial in that, 1, meet the requirement of the 5km that rides in the new national standard defined 30min time,
Tooth ratio is up to 2.25 or more；2, it can reach 400mm or more applied to slide plate electric bicycle pedal plate distance, increase space； 3,
Chain is not easy to loosen, and reliability improves；4, comfort level improves；5, the coefficient of waste reduces, more durable.
Detailed description of the invention
Fig. 1 the application structural schematic diagram；
Sprocket wheel before 1. in figure, 2. change pulleys, 3. rear flywheels.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, the utility model provides a kind of transmission system that can be used for national standard electric bicycle, including with pedal
The preceding sprocket wheel 1 connected by rotating shaft transmission, the rear flywheel 3 connecting with rear wheel drive are equipped with and vehicle between preceding sprocket wheel and rear flywheel
The change pulley 2 being rotatably connected in the middle part of frame, change pulley include the pinion gear being fixedly connected and gear wheel, and wherein pinion gear is outside
Side, gear wheel are sequentially connected in inside, the pinion gear of change pulley and preceding sprocket wheel 1, and gear wheel and rear flywheel 3 are sequentially connected, and realize
To the driving traveling of rear-wheel.
As preferred embodiment, preceding sprocket wheel is 32 teeth, and the gear wheel of change pulley is 18 teeth, and pinion gear is 12 teeth, rear to fly
Wheel drives rear wheel movement using 16 teeth.In another embodiment, rear flywheel drives rear wheel movement using 12 teeth.
The kind of drive using the above structure, chain are not easy to loosen, and double stage chain wheel is able to maintain when riding near shaft
Moved synchronously with chain stay, preceding sprocket wheel and flywheel teeth ratio can reach 2.25 or more, meet national standard satisfaction ride within the 30min time away from
The requirement of 5km, comfort of riding is more laborsaving, while the abrasion of gear and chain can reduce by 50%.
Claims (4)
1. a kind of transmission system that can be used for national standard electric bicycle, including the preceding sprocket wheel being connect with pedal by rotating shaft transmission,
The rear flywheel being connect with rear wheel drive, which is characterized in that being equipped between the preceding sprocket wheel and rear flywheel can be rotated in the middle part of vehicle frame
The change pulley of connection, the change pulley include the pinion gear being fixedly connected and gear wheel, and the pinion gear of change pulley and preceding sprocket wheel pass
Dynamic connection, gear wheel and rear flywheel are sequentially connected.
2. the transmission system according to claim 1 that can be used for national standard electric bicycle, which is characterized in that the change pulley
Gear wheel be 18 teeth, pinion gear be 12 teeth.
3. the transmission system according to claim 2 that can be used for national standard electric bicycle, which is characterized in that the rear flywheel
Rear wheel movement is driven using 16 teeth.
4. the transmission system according to claim 2 that can be used for national standard electric bicycle, which is characterized in that the rear flywheel
Rear wheel movement is driven using 12 teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821337033.5U CN208602636U (en) | 2018-08-20 | 2018-08-20 | A kind of transmission system can be used for national standard electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821337033.5U CN208602636U (en) | 2018-08-20 | 2018-08-20 | A kind of transmission system can be used for national standard electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208602636U true CN208602636U (en) | 2019-03-15 |
Family
ID=65680340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821337033.5U Active CN208602636U (en) | 2018-08-20 | 2018-08-20 | A kind of transmission system can be used for national standard electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208602636U (en) |
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2018
- 2018-08-20 CN CN201821337033.5U patent/CN208602636U/en active Active
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| GR01 | Patent grant | ||
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