CN102975815A - Bicycle speed increaser (accelerator) - Google Patents
Bicycle speed increaser (accelerator) Download PDFInfo
- Publication number
- CN102975815A CN102975815A CN201110264601XA CN201110264601A CN102975815A CN 102975815 A CN102975815 A CN 102975815A CN 201110264601X A CN201110264601X A CN 201110264601XA CN 201110264601 A CN201110264601 A CN 201110264601A CN 102975815 A CN102975815 A CN 102975815A
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- Prior art keywords
- bicycle
- accelerator
- transmission
- sprocket
- gear
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- 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.)
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention provides a bicycle speed increaser (accelerator) which is a mechanical transmission device and belongs to the manufacture field of machinery. The bicycle speed increaser (accelerator) is a composite gear train composed of gear transmission and sprocket transmission. According to the bicycle speed increaser (accelerator), the characteristic and the principle that a transmission ratio of a planetary gear train is large is utilized, the sprocket transmission of an original bicycle is combined, a group of composite gear trains are formed through design and manufacture (machining is a main part), and a power transmission system of the original bicycle is changed. The specific improvement method is that a center shaft of the bicycle is separated from a sprocket so that the rotating speed of the sprocket in motion is asynchronous with that of the center shaft, and meanwhile, a frame structure is changed correspondingly. As shown in a principle structure chart in a figure 1, the frame structure of the principle structure chart shows that the structure of the center shaft is totally different compared with a bicycle frame structure with single chain transmission.
Description
Technical field
Speed-increasing device for bicycle is a kind of mechanical drive, is the compound gear train that gear transmission and chain sprocket drive are constituted, and belongs to mechanical manufacturing field.
Background technology
Existing bicycle single chain-drive system and relevant technologies data, as: relevant train transmission in the teaching materials such as " mechanism design basis " " theory of machines " " mechanism's manufacturing process ", processing chapters and sections.
Summary of the invention
Bicycle accelerator is to have used large characteristics and the principle of Transmission Ratio of Planetary Gear Trains, in conjunction with the chain sprocket drive of original bicycle, consists of one group of compound gear train through manufacturing and designing (adding as the master with machine), has changed the power drive system of existing bicycle.Specifically improve one's methods is that axis with bicycle separates with sprocket wheel, sprocket wheel is just can on the go asynchronous with the axis rotating speed like this, body frame structure for automotive has also been made corresponding change simultaneously, shown in principle assumption diagram in the accompanying drawing 1, the body frame structure for automotive of this figure shows with single chain-drive cycle frame to be compared, and middle shaft structure is fully different.
Description of drawings
The principle of work of accompanying drawing 1 upper figure (accelerator shaft survey schematic diagram) expression bicycle accelerator and the relation between each part, figure below (accelerator principle top view).Numeral and letter represent respectively among the figure: 1, axis; 3, sprocket wheel; 4, center gear (gear); 5, inner gear; 6, satellite gear; 8, pinion carrier; A, vehicle frame; B, chain; The left side is that accelerator shaft is surveyed schematic diagram, and the right is accelerator principle birds-eye view.
Accompanying drawing 2 upper figure (accelerator assembling sketch) are the assembling sketches of accelerator, and the Relationship Comparison of each part is clear, directly perceived.Figure below (sketch is looked on an accelerator left side).Numeral represents respectively among the figure: 1, axis; 2, bearing; 3, sprocket wheel; 4, center gear (gear); 5, inner gear; 6, satellite gear; 7, planet wheel spindle; 8, pinion carrier; 9, straight pin; 10, pinion carrier steady ring; 11, pinion carrier and center gear partition; 12, holding screw; 13, axial positioning sleeve.Totally 5 pages of Figure of description.
Accompanying drawing 3 is one of vital parts sketches in the accelerator, only represents design of part, is the standard module gear, upper figure is the inner gear in the planet circular system, and A is connected with vehicle frame, and figure below is the sun gear in the accelerator, its end and planetary wheel engagement, the other end and sprocket wheel are connected.
Other part accompanying drawing of bicycle accelerator slightly.
Specific embodiment
Process sample according to design drawing, detail drawing, assemble out bicycle with accelerator such as accompanying drawing 2, and do actual running and draw following observed data, same person is by bike the time, foot-operated turned for 1 week, this car travel distance be not with accelerator car travel distance 3-4 doubly.(annotate: the wheel diameter of two different cars is identical) principle assumption diagram can be found out from accompanying drawing 1, and input speed has been exaggerated with the ratio of output speed, (supposes Z
5=3Z
4) concern according to Transmission Ratio of Planetary Gear Trains:
As pinion carrier n
H(connecting firmly with bicycle pedal central axis).Turn 1 circle, center gear n
4(admittedly taking turns with hinge wheel) turns 4 circles, namely
By
Namely the foot-operated pinion carrier H that drives turns 1 circle, and floral disc (hinge wheel) turns 4 circles, and flywheel (minor sprocket) number of can turn-taking is so: i
4 flywheels (sprocket wheel)=i
4Hi
Flywheel (sprocket wheel)=4 * i
Sprocket wheel
If sprocket ratio i
Sprocket wheelBe 3, i then
4. sprocket wheel=12
The speed ratio of bicycle chain driving is the most nearly 5 times at present, and concerning chain sprocket drive, 8 times speed ratio is chain-drive limit ratio, and the compound gear train transmission of accelerator can obtain larger transmitting ratio, and compact conformation, under the condition of same foot-operated frequency, the latter's speed is much larger than the former.
Claims (4)
1. in speed-increasing device for bicycle (accelerator), axis (1) is dynamically connected with sprocket wheel (3), captives joint different with sprocket wheel from the axis of standard bicycle.
2. the circumferential and axial of axis (1) and pinion carrier (8) are connected and detachably, axis (1) is dynamically connected with center gear (gear) (4).
3. center gear (gear) (4) and sprocket wheel (3) captives joint.
4. the planet circular system that is consisted of by part (1), (4), (5), (6), (8), and the compound gear train of sprocket wheel (3) composition and the assembly relation of vehicle frame (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110264601XA CN102975815A (en) | 2011-09-07 | 2011-09-07 | Bicycle speed increaser (accelerator) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110264601XA CN102975815A (en) | 2011-09-07 | 2011-09-07 | Bicycle speed increaser (accelerator) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102975815A true CN102975815A (en) | 2013-03-20 |
Family
ID=47850249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110264601XA Pending CN102975815A (en) | 2011-09-07 | 2011-09-07 | Bicycle speed increaser (accelerator) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102975815A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2521141Y (en) * | 2002-01-08 | 2002-11-20 | 庞明方 | Bicycle middle axle driving sprocket speed booster |
| CN2707612Y (en) * | 2004-03-18 | 2005-07-06 | 上海泽露贸易有限公司 | Central shaft chain wheel accelerator for bicycle and electric vehicle |
| CN202080418U (en) * | 2011-03-24 | 2011-12-21 | 李中时 | Axile drive sprocket speed increaser for bicycle |
-
2011
- 2011-09-07 CN CN201110264601XA patent/CN102975815A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2521141Y (en) * | 2002-01-08 | 2002-11-20 | 庞明方 | Bicycle middle axle driving sprocket speed booster |
| CN2707612Y (en) * | 2004-03-18 | 2005-07-06 | 上海泽露贸易有限公司 | Central shaft chain wheel accelerator for bicycle and electric vehicle |
| CN202080418U (en) * | 2011-03-24 | 2011-12-21 | 李中时 | Axile drive sprocket speed increaser for bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Dai Yiguang Document name: Notification of Publication of the Application for Invention |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Dai Yiguang Document name: Decision of Rejection |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130320 |