CN201287811Y - Bicycle transmission device - Google Patents
Bicycle transmission device Download PDFInfo
- Publication number
- CN201287811Y CN201287811Y CNU2008201045480U CN200820104548U CN201287811Y CN 201287811 Y CN201287811 Y CN 201287811Y CN U2008201045480 U CNU2008201045480 U CN U2008201045480U CN 200820104548 U CN200820104548 U CN 200820104548U CN 201287811 Y CN201287811 Y CN 201287811Y
- Authority
- CN
- China
- Prior art keywords
- drive
- driving
- transmission
- bicycle
- sprocket 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 - Fee Related
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- 230000005540 biological transmission Effects 0.000 title claims description 37
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000295 complement effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Gears, Cams (AREA)
Abstract
The utility model discloses a bicycle drive mechanism, which comprises a driving sprocket wheel, a driven sprocket wheel and a driving chain, and is characterized in that an intermediate drive mechanism is arranged between the driving sprocket wheel and the driven sprocket wheel, a driving small gear in the intermediate drive mechanism, which is coaxial with a driving large gear, is meshed with the driving sprocket wheel, and a driving large sprocket wheel is connected with the driven sprocket wheel through a driving chain. The intermediate drive mechanism comprises two driving small gears, a driving large gear, a driving large sprocket wheel and two bearings, wherein the two ends of one bearing are respectively provided with one driving small gear and the driving large gear, and the two ends of the other bearing are respectively provided with one driving small gear and the driving large sprocket wheel, the driving large gear is meshed with the driving small gear which is arranged on the other bearing, and two bearings are arranged on a back lower fork. The bicycle drive mechanism has the advantages of simple structure and convenient installation, and can increase the speed of a bicycle.
Description
Technical field
The utility model relates to mechanical drive, especially bicycle drive.
Background technology
The driving system of ordinary bicycle mainly is made of drive sprocket, driven sprocket and driving chain.The transmitting ratio of recently representing system generally speaking with the number of teeth of the number of teeth of driven sprocket and drive sprocket increases the diameter and the number of teeth of drive sprocket or reduces the diameter and the number of teeth of driven sprocket, just reduces transmitting ratio, can improve the speed of bicycle.
In actual conditions, because bicycle is subjected to influence and the restriction of chain sprocket drive stationarity and ground Clearance, drive sprocket can not increase too greatly, because the number of teeth minimizing of driven sprocket can make transmission stability reduce, so transmitting ratio can not unconfined reducing, the bicycle speed of a motor vehicle can not improve a lot.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art, provides a kind of simple in structure, easy for installation, can improve the bicycle drive of the speed of a motor vehicle.
The utility model is achieved through the following technical solutions:
A kind of bicycle drive, comprise drive sprocket, driven sprocket and driving chain, it is characterized in that: between drive sprocket and driven sprocket, be provided with intermediate gearing, drive pinion and the drive sprocket engagement coaxial with the transmission big gear wheel in the intermediate gearing, the transmission hinge wheel is connected with driven sprocket by driving chain.
Described intermediate gearing is made up of 2 drive pinions, transmission big gear wheel, transmission hinge wheel and 2 bearings, wherein the two ends of 1 bearing are respectively equipped with 1 drive pinion and transmission big gear wheel, the two ends of another bearing are respectively equipped with 1 drive pinion and transmission hinge wheel, transmission big gear wheel and the drive pinion engagement that is arranged on another bearing, 2 bearings are arranged on the Chain stay.
The number of teeth of described transmission big gear wheel and transmission hinge wheel is about 2～4 times of the drive pinion number of teeth.
Described drive sprocket, be arranged on a side of frame assembly, be arranged on the opposite side of frame assembly with transmission big gear wheel ingear drive pinion and transmission big gear wheel with drive sprocket ingear drive pinion, transmission hinge wheel and driven sprocket.
Owing to adopted technique scheme, between drive sprocket and driven sprocket, increased intermediate gearing, promptly set up one group of speed increasing mechanism, can be under the certain situation of drive sprocket rotating speed, the speed of driven sprocket is improved, the multiple that improves mates decision by the number of teeth of each gear of intermediate gearing, thereby has improved the speed of bicycle.
In addition, can also obtain the speed of a motor vehicle faster by the group number that increases intermediate gearing.
The utility model can be applicable on the bicycles such as bicycle, three-wheel vehicle, can significantly improve the speed of a motor vehicle.
The utility model has the advantages that: simple in structure, easy for installation, can improve bicycle speed.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the equipped structural representation of the utility model and bicycle.
Among the figure, 1-1. drive pinion 1-2. transmission trundle 2. transmission big gear wheels 3. transmission hinge wheel 4-1. bearing 4-2. bearings 5. drive sprockets 6. driving chains 7. Chain stays 8. driven sprockets
The specific embodiment
Below in conjunction with drawings and Examples the utility model content is further elaborated, but is not qualification the utility model content.
Embodiment:
With reference to Fig. 1 Fig. 2, a kind of bicycle drive, comprise drive sprocket 5, driven sprocket 8 and driving chain 6, between drive sprocket 5 and driven sprocket 8, an intermediate gearing is set, drive pinion 1-1 in the intermediate gearing and drive sprocket 5 engagements, transmission hinge wheel 3 is connected with driven sprocket 8 by driving chain 6.
Intermediate gearing is made up of 2 drive pinion 1-1,1-2, transmission big gear wheel 2, transmission hinge wheel 3 and 2 bearing 4-1,4-2, the two ends of bearing 4-1 are respectively equipped with drive pinion 1-1 and transmission big gear wheel 2, the two ends of bearing 4-2 are respectively equipped with drive pinion 1-2 and transmission hinge wheel 3, transmission big gear wheel 2 and drive pinion 1-2 engagement, bearing 4-1,4-2 are arranged on the Chain stay 7.
Bearing 4-1,4-2 use the bearing identical with bicycle middle shaft.Chain stay 7 length are complementary with the intermediate gearing that is equipped with.
The number of teeth of transmission big gear wheel 2 and transmission hinge wheel 3 is 50 teeth, and the number of teeth of drive pinion 1-1,1-2 is 15 teeth.
Claims (4)
1, bicycle drive, comprise drive sprocket (5), driven sprocket (8) and driving chain (6), it is characterized in that: between drive sprocket (5) and driven sprocket (8), be provided with intermediate gearing, drive pinion in the intermediate gearing (1-1) and drive sprocket (5) engagement, transmission hinge wheel (3) is connected with driven sprocket (8) by driving chain (6).
2, bicycle drive according to claim 1, it is characterized in that: described intermediate gearing is made up of 2 drive pinions (1-1), (1-2), transmission big gear wheel (2), transmission hinge wheel (3) and 2 bearings (4-1), (4-2), the two ends of bearing (4-1) are respectively equipped with drive pinion (1-1) and transmission big gear wheel (2), the two ends of bearing (4-2) are respectively equipped with drive pinion (1-2) and transmission hinge wheel (3), transmission big gear wheel (2) and drive pinion (1-2) engagement, bearing (4-1), (4-2) are arranged on the Chain stay (7).
3, bicycle drive according to claim 1 and 2 is characterized in that: the number of teeth of described transmission big gear wheel (2) and transmission hinge wheel (3) is about drive pinion (1-1), (1-2) number of teeth 2～4 times.
4, bicycle drive according to claim 1 and 2, it is characterized in that: described drive sprocket (5), drive pinion (1-1), transmission hinge wheel (3) and driven sprocket (8) are arranged on a side of frame assembly, and described transmission big gear wheel (2) and drive pinion (1-2) are arranged on the opposite side of frame assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201045480U CN201287811Y (en) | 2008-09-06 | 2008-09-06 | Bicycle transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201045480U CN201287811Y (en) | 2008-09-06 | 2008-09-06 | Bicycle transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201287811Y true CN201287811Y (en) | 2009-08-12 |
Family
ID=40979485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201045480U Expired - Fee Related CN201287811Y (en) | 2008-09-06 | 2008-09-06 | Bicycle transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201287811Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818924A (en) * | 2016-06-01 | 2016-08-03 | 朱道刚 | Transmission device and novel bicycle |
| CN107257763A (en) * | 2015-09-07 | 2017-10-17 | 赵炳宽 | Minibike |
-
2008
- 2008-09-06 CN CNU2008201045480U patent/CN201287811Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257763A (en) * | 2015-09-07 | 2017-10-17 | 赵炳宽 | Minibike |
| CN105818924A (en) * | 2016-06-01 | 2016-08-03 | 朱道刚 | Transmission device and novel bicycle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20110906 |