CN2215452Y - Chain-wheel axle speed changer - Google Patents
Chain-wheel axle speed changer Download PDFInfo
- Publication number
- CN2215452Y CN2215452Y CN 95200427 CN95200427U CN2215452Y CN 2215452 Y CN2215452 Y CN 2215452Y CN 95200427 CN95200427 CN 95200427 CN 95200427 U CN95200427 U CN 95200427U CN 2215452 Y CN2215452 Y CN 2215452Y
- Authority
- CN
- China
- Prior art keywords
- commutator
- axle
- shaft
- gear
- gear 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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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a chain-wheel axle speed changer, comprising a shell body, a cover plate, a chain-wheel axle, a driving gear, the axle of a commutator, driven ratchet gears, a jack, a commutator, a commutation sleeve, a big bevel gear, a small bevel gear, etc. The commutation sleeve drives the jack on the axle of the commutator to synchronously slide through manipulating the commutator; when the jack slides to the jogged groove of some ratchet gear, power is delivered to the gear; other gears are engaged and idle, and thus speed is changed. Compared with the known techniques, the design has the advantages of simple structure, lower manufacture cost, stable and reliable speed changing, no idle shifting phenomenon, good dustproof property, and long service life.
Description
The utility model relates to derailleur, particularly the axis transmission system.
Bicycle speed-varying unit is divided into outer speed change and internal speed-changing two big classes, outer speed change all adopts the multiple strand chain transmission, this structural volume is big, heavy, easily out of supply during speed change, also because its sprocket wheel and chain are open type, anti-dust performance is poor, use influenced by silt and pollute the vehicle chain, sprocket wheel causes speed change to lose efficacy, and also very easily pollutes cyclist's clothing.Internal speed-changing refers generally to the rear axle internal speed-changing, adopts gear transmission, and engaging and disengaging gear adopts the castellated structure that moves back and forth, though this structure can overcome the defective of above-mentioned speed change, but when quiescence and variable-speed operation, can't realize speed change, produce neutral gear, cause breaking gear.The rear axle internal speed-changing also has the employing planetary gear mechanism, and interlock or three kinds of speed outputs of relieving formation by the long ratchet in the engaging and disengaging gear reach floral disc speed change purpose, but this complex structure, the cost height, influence is applied.
The utility model designs a kind of simple in structure, speed change is reliable and stable, anti-dust performance is good bicycle middle shaft change-speed box at the existing in prior technology defective.
The utility model is achieved by the following scheme: the cover plate of housing both sides is supporting axis by the axle shelves, fixes by piecing together nut, and axis is provided with the driving gear that is in transmission connection; Also be provided with the commutator shaft parallel in the housing with axis, be equipped with very heavy on the axle, and be sleeved in the bevel gear wheel, two supports is on the axle shelves, and fix to piece together nut, commutator shaft be provided with by axle shelves supportings with the driven ratchet-gear wheel of driving gear ingear, bevel gear wheel is equipped with the reversing cover that connects commutator shaft outward, commutator and reversing cover are fixed, make reversing cover drive very heavy slippage gear selecting on the commutator shaft by manipulation to commutator, make the engaged transmission of arbitrary grade driving gear and driven ratchet-gear wheel and drive the commutator shaft rotation and drive the bevel gear wheel rotation, through with axle sleeve in be contained in transmission shaft end bevel pinion engagement transmit, transmit the power that makes rear axle obtain one grade of rotating speed, the very heavy position of conversion by a pair of awl tooth engagement in the back plate again, can obtain many grades of different rotating speeds, reach the speed change purpose.
The utility model is compared with prior art, and is simple in structure, and cost reduces relatively, the reliable and stable no neutral gear phenomenon of speed change, and anti-dust performance is good, not only can not pollute the clothing of rider, has prolonged service life simultaneously.
Accompanying drawing 1 provides the utility model structural representation.
Remake by accompanying drawing 1 embodiment and to describe in further detail.
Seam bonded assembly cover plate (1) is equipped with in the housing of bicycle middle shaft change-speed box (13) both sides, by screw retention, axle shelves (4) by the band ball on the cover plate are supporting axis (3), and two ends are fixing to piece together nut (2), and three key bonded assembly driving gears (18) are housed on the axis.
The commutator shaft (16) of parallel axis also is housed in the housing, very heavy (15) are housed and are sleeved in the bevel gear wheel (14) on the axle, two supports fix to piece together nut equally, and at both ends is equipped with cover of dust (5) on the axle shelves of band ball.Commutator shaft (16) be provided with by axle shelves supportings with driving gear (18) three driven ratchet-gear wheels of ingear (17), driven ratchet-gear wheel endoporus has and very heavy chimeric groove.Bevel gear wheel (14) has kidney slot, and reversing cover (7) is housed outward, and it passes kidney slot by bearing pin and is connected with commutator shaft (16), and commutator (6) can be stirred it with reversing cover (7) is fixing again.Bevel gear wheel (14) is contained on interior transmission shaft (9) axle head of axle sleeve (10) with bevel pinion (8) engagement, bevel pinion, and the other end of transmission shaft is equipped with the awl tooth (11) of pair of meshing in back plate (12), drives rear axle and rotates.
Handle commutator (6) during speed change, the slippage of drive reversing cover (7) makes very heavy (15) synchronization-sliding on the commutator shaft (16) then, when very heavy (15) slide onto in driven ratchet-gear wheel (17) embeded slot, power just makes commutator shaft (16) obtain one grade of rotating speed by this a pair of gear output, other gears not outputting power that just dallies.The utlity model has high, medium and low third gear rotating speed.
Claims (2)
1, a kind of bicycle middle shaft change-speed box, two side cover plates (1) of housing (13) are supporting axis (3) by axle shelves (4), and it is fixing by piecing together nut (2), transmission shaft (9) in the axis power warp beam sleeve (10) and a pair of awl tooth (11) in the back plate (12) drive the rear axle running, it is characterized in that axis (3) is provided with the driving gear (18) that is in transmission connection; Also be provided with the commutator shaft (16) of parallel axis in the housing, very heavy (15) are housed and are sleeved in the bevel gear wheel (14) on the axle, two supports is on the axle shelves, and fix to piece together nut, commutator shaft (16) be provided with by axle shelves supportings with the driven ratchet-gear wheel of driving gear (18) ingear (17), the outer reversing cover (7) that connects commutator shaft (16) that is equipped with of bevel gear wheel (14), commutator (6) is captiveed joint with reversing cover (7); The bevel pinion (8) that is meshed with bevel gear wheel (14) is fixed on transmission shaft (9) axle head.
2, bicycle middle shaft change-speed box as claimed in claim 1 is characterized in that commutator shaft (16) two ends are provided with cover of dust (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200427 CN2215452Y (en) | 1995-01-05 | 1995-01-05 | Chain-wheel axle speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200427 CN2215452Y (en) | 1995-01-05 | 1995-01-05 | Chain-wheel axle speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2215452Y true CN2215452Y (en) | 1995-12-20 |
Family
ID=33854168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95200427 Expired - Fee Related CN2215452Y (en) | 1995-01-05 | 1995-01-05 | Chain-wheel axle speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2215452Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107176263A (en) * | 2017-06-14 | 2017-09-19 | 宁波巨隆机械股份有限公司 | A kind of axle for bicycle transmission component |
| CN109606531A (en) * | 2019-02-12 | 2019-04-12 | 上海第二工业大学 | Axle for bicycle is driven multistage internal speed changing device |
| CN114148444A (en) * | 2021-10-29 | 2022-03-08 | 上海第二工业大学 | Three-gear speed-changing chainless transmission shaft of bicycle |
-
1995
- 1995-01-05 CN CN 95200427 patent/CN2215452Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107176263A (en) * | 2017-06-14 | 2017-09-19 | 宁波巨隆机械股份有限公司 | A kind of axle for bicycle transmission component |
| CN109606531A (en) * | 2019-02-12 | 2019-04-12 | 上海第二工业大学 | Axle for bicycle is driven multistage internal speed changing device |
| CN114148444A (en) * | 2021-10-29 | 2022-03-08 | 上海第二工业大学 | Three-gear speed-changing chainless transmission shaft of bicycle |
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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 |