CN2748374Y - Speed-increasing device for bicycle - Google Patents
Speed-increasing device for bicycle Download PDFInfo
- Publication number
- CN2748374Y CN2748374Y CN 200420080849 CN200420080849U CN2748374Y CN 2748374 Y CN2748374 Y CN 2748374Y CN 200420080849 CN200420080849 CN 200420080849 CN 200420080849 U CN200420080849 U CN 200420080849U CN 2748374 Y CN2748374 Y CN 2748374Y
- Authority
- CN
- China
- Prior art keywords
- speed
- transmission shaft
- bicycle
- wheel
- sun gear
- 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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Abstract
The utility model relates to an accelerator for a bicycle, comprising a pedal shaft 1, a planet carrier 4, a planet wheel 6, a gear ring 7, a sun gear 2, an adapter sleeve 8, a transmission shaft 9 and a sprocket wheel 11. The planet carrier 4 is installed on the pedal shaft 1, the planet wheel 6 is connected to the planet carrier 4 and engaged with the gear ring and the sun gear respectively, and the transmission shaft 9 is sheathed on the pedal shaft; the adapter sleeve is sheathed on the transmission shaft, one end of the adapter sleeve is connected with the gear ring, and the sun gear and the sprocket wheel are installed on the two ends of the transmission shaft respectively. The utility model improves the speed by the belt of the planet wheel, and the speed ratio is big; the sprocket wheel can be replaced according to the requirement of the speed of the bicycle; the speed of the bicycles with small wheels can achieve the standard of the speed of the bicycles with big wheels, so the utility model is specially suitable for the speed increasing of the bicycles with small wheels.
Description
Technical field:
The utility model relates to a kind of bicycle.Particularly relate to a kind of bicycle speed increaser.Be installed on the center tap of bicycle, drive, to replace traditional bicycle middle shaft by the bicycle step.
Background technology:
Present existing various bicycle speed increasers, its structure are all complicated especially, and speed ratio is little, and the speedup effect is not ideal.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of simple in structure, bicycle speed increaser that the speedup speed ratio is big is provided.
The purpose of this utility model is achieved in that a kind of bicycle speed increaser, comprise step axle, pinion carrier, planetary wheel, gear ring, sun gear, connector bushing, transmission shaft and sprocket wheel, pinion carrier is installed on the step axle, planetary wheel is connected on the pinion carrier, with gear ring and sun gear engagement, drive shaft sleeve places on the step axle respectively, and connector bushing is placed on the transmission shaft, the one end links to each other with gear ring, and sun gear and sprocket wheel are installed on the transmission shaft two ends respectively.
During cruising, rotate stretcher, by pedal spindle transmission pinion carrier, pinion carrier drives planetary wheel, and planetary wheel is by gear ring engaged transmission sun gear, and sun gear transmits power to driving chain wheel by transmission shaft, drive the rotation of self-moving vehicle trailing wheel, move ahead to drive bicycle.
The utility model is by planetary wheel band speedup, and speed ratio is big, and can replace the size of sprocket wheel according to the requirement of bicycle speed.Make small-wheel bicycle also can reach the speed of a motor vehicle of big wheel bicycle.Therefore be specially adapted to the speedup of small-wheel bicycle.
Description of drawings:
Fig. 1 is the utility model overall structure scheme drawing.
Fig. 2 is the right side topology view of Fig. 1.
The specific embodiment:
As Fig. 1～2, the utility model is a kind of bicycle speed increaser, mainly is made up of step axle 1, sun gear 2, needle bearing 3, pinion carrier 4, bearing pin 5, planetary wheel 6, gear ring 7, connector bushing 8, transmission shaft 9, large and small fixedly assembly cap 10,12 and sprocket wheel 11 etc.
Pinion carrier 4 is placed on the step axle 1, captives joint with step axle 1.Planetary wheel 6 usefulness bearing pins 5 are articulated on the pinion carrier 4, respectively with gear ring 7 and sun gear 2 engagements.Needle bearing 3 is set on step axle 1 and the transmission shaft 9, and transmission shaft 9 is placed on the step axle 1, and connector bushing 8 is placed in transmission shaft 9, and the one end is captiveed joint with gear ring 7, and the other end revolves puts big assembly cap 10, in order to the stationary bicycle center tap.Sun gear 2 is installed on transmission shaft 9 one ends, and sprocket wheel 11 is installed on transmission shaft 9 other ends, and locks with little assembly cap 12.
Claims (1)
1, a kind of bicycle speed increaser, it is characterized in that it comprises step axle (1), pinion carrier (4), planetary wheel (6), gear ring (7), sun gear (2), connector bushing (8), transmission shaft (9) and sprocket wheel (11), pinion carrier (4) is installed on the step axle (1), planetary wheel (6) is connected on the pinion carrier (4), respectively with gear ring (7) and sun gear (2) engagement, transmission shaft (9) is placed on the step axle (1), connector bushing (8) is placed on the transmission shaft (9), the one end links to each other with gear ring (7), and sun gear (2) and sprocket wheel (11) are installed on transmission shaft (9) two ends respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420080849 CN2748374Y (en) | 2004-11-05 | 2004-11-05 | Speed-increasing device for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420080849 CN2748374Y (en) | 2004-11-05 | 2004-11-05 | Speed-increasing device for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2748374Y true CN2748374Y (en) | 2005-12-28 |
Family
ID=35719866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420080849 Expired - Fee Related CN2748374Y (en) | 2004-11-05 | 2004-11-05 | Speed-increasing device for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2748374Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101382A1 (en) * | 2007-02-16 | 2008-08-28 | Shengwen Guo | A central shaft acceleration gearing |
| CN108622304A (en) * | 2017-03-24 | 2018-10-09 | 天津金世通自行车零件有限公司 | A kind of bicycle transmission accelerator |
-
2004
- 2004-11-05 CN CN 200420080849 patent/CN2748374Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101382A1 (en) * | 2007-02-16 | 2008-08-28 | Shengwen Guo | A central shaft acceleration gearing |
| CN108622304A (en) * | 2017-03-24 | 2018-10-09 | 天津金世通自行车零件有限公司 | A kind of bicycle transmission accelerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |