CN103991505A - Automatic gear shifting device - Google Patents
Automatic gear shifting device Download PDFInfo
- Publication number
- CN103991505A CN103991505A CN201410266718.5A CN201410266718A CN103991505A CN 103991505 A CN103991505 A CN 103991505A CN 201410266718 A CN201410266718 A CN 201410266718A CN 103991505 A CN103991505 A CN 103991505A
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- CN
- China
- Prior art keywords
- belt
- wheel
- belt transmission
- coaxial
- gear shifting
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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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Abstract
The invention relates to the field of power transmission of vehicles, in particular to an automatic gear shifting device. The technical task of the automatic gear shifting device is to eliminate the phenomenon that in terms of a front application belt transmission device, when the work load of belt transmission exceeds a limit value of friction force between a belt and a belt wheel, the belt and the belt wheel relatively slide violently. The automatic gear shifting device is simple in structure, can automatically carry out gear shifting and speed changing according to speeds and is very practical. According to the technical scheme, several sets of belt transmission devices are combined together, driving wheels are coaxial, driven wheels are coaxial, the driven wheel in each belt transmission device is of a one-way ratchet structure, one-way ratchets of the coaxial driven wheels of the belt transmission devices combined together are in the same direction, and the work load of belt transmission of the belt transmission devices sequentially increases.
Description
Technical field
The present invention relates to the power transmission field of vehicle, specifically a kind of automatic gear shift apparatus.
Background technology
Self shifter is applied more on automobile, but complex structure, cost is high, and variable speed bicycle also has gearshift but is not automatic.The working load transmitting when band in belt driver has exceeded the limit of friction force between band and belt wheel, between band and belt wheel, violent relative sliding occurs, and this is former is considered to avoid, and the front application of this phenomenon is not also seen.
Summary of the invention
Technical assignment of the present invention is for above weak point, and the working load transmitting when band in positive application belt driver has exceeded the limit of friction force between band and belt wheel, between band and belt wheel, this phenomenon of violent relative sliding occurs.Provide a kind of simple in structure, according to the very practical device of speed automatic gear shifting speed changing.
The present invention for the technical scheme that its technical matters of solution adopts is: several groups of belt drivers are combined, make driving wheel coaxial, flower wheel is coaxial, wherein the flower wheel in every group of belt driver is all single direction ratchet structure, the single direction ratchet of the coaxial flower wheel of several groups of belt drivers of combining is in the same way, and the workload of the band transmission of several groups of belt drivers increases progressively successively.
The embodiment that is applied as being combined on bicycle with three groups of belt drivers below illustrates its application.
The diameter of the driving wheel of first group of belt driver in three groups of belt driver combinations in the present embodiment is less than the diameter of flower wheel, the diameter of the driving wheel of second group of belt driver equals the diameter of flower wheel, the diameter of the driving wheel of the 3rd group of belt driver is greater than the diameter of flower wheel, these three groups of belt drivers are combined, make driving wheel coaxial, flower wheel is coaxial, flower wheel in every group of belt driver is all single direction ratchet structure, and the single direction ratchet of the coaxial flower wheel of three groups of belt drivers of combining is in the same way.
Replace the sprocket transmission device of original bicycle with three groups of belt driver combinations in above-described embodiment, be specially: the chain that removes wheel disc, flywheel and connection wheel disc and the flywheel with pedal drive of original bicycle, three driving wheels of this three groups of belt drivers combination are arranged on to the original place that wheel disc is installed on the axis of bicycle, three flower wheels of these three groups of belt drivers combinations are arranged on to the place of original Flywheel on the axle of trailing wheel of bicycle.The power needing according to bicycle setting in motion, the workload of three groups of belt drivers of appropriate design: the workload of the band transmission of three groups of belt drivers increases progressively successively.The workload of the band transmission of first group of belt driver can drive bicycle setting in motion, and the workload of the band transmission of second group of belt driver can not drive bicycle setting in motion.
When bicycle setting in motion, with these three groups of belt drivers combinations of stretcher drive, first group of belt driver plays a role, the motion of drive bicycle rear, now, the workload of band transmission needing during due to bicycle setting in motion exceeded second group, the 3rd group belt driver band with take turns between the limit of friction force, so the drive belt slip of second group and the 3rd group is ineffective.With the quickening of stretcher rotating speed, the speed of bicycle is accelerated, the workload of the needed band transmission of cycle racing diminishes, in the time that the workload of the needed band transmission of cycle racing enters into the friction force scope of band transmission of second group of belt driver, second group of belt driver plays a role, bicycle is accelerated, now, because first group of belt driver is because flower wheel is single direction ratchet structure, the flower wheel of first group is free state, the workload of band transmission needing due to cycle racing still exceeded the 3rd group belt driver band with take turns between the limit of friction force, so drive belt slip of the 3rd group, ineffective.Under the effect of second group of belt driver, the speed of bicycle continues to accelerate, the workload of the needed band transmission of cycle racing continues to diminish, in the time that the workload of the needed band transmission of cycle racing enters into the friction force scope of band transmission of the 3rd group of belt driver, the 3rd group of belt driver plays a role, continue to make bicycle to accelerate, now, because first group and second group of belt driver are because flower wheel is all single direction ratchet structure, the flower wheel of first group and second group is free state.When similarly known bicycle slows down, the moving situation of these three groups of belt drivers, repeats no more.
Compared to the prior art a kind of automatic gear shift apparatus of the present invention, has simple in structure, cost performance high.
Brief description of the drawings
Below in conjunction with the accompanying drawing of embodiment, the present invention is further described.
The integral structure schematic diagram that accompanying drawing 1 is a kind of automatic gear shift apparatus;
The birds-eye view that accompanying drawing 2 is a kind of automatic gear shift apparatus.
In figure: 1, drive sprocket axle, 2, follower shaft, 3, driving wheel one, 4, driving wheel two, 5, driving wheel three, 6, driving band, 7, flower wheel one, 8, flower wheel two, 9, flower wheel three.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
A kind of automatic gear shift apparatus of the present invention, the diameter of the driving wheel one of first group of belt driver in three groups of belt driver combinations in the present embodiment is less than the diameter of flower wheel one, the diameter of the driving wheel two of second group of belt driver equals the diameter of flower wheel two, the diameter of the driving wheel three of the 3rd group of belt driver is greater than the diameter of flower wheel three, these three groups of belt drivers are combined, make driving wheel one, driving wheel two and the same drive sprocket axle of driving wheel three, flower wheel one, the same follower shaft of flower wheel two and flower wheel, flower wheel 1, flower wheel 2, flower wheel 3 is all single direction ratchet structure, and flower wheel 1, flower wheel 2, the single direction ratchet of flower wheel 3 is in the same way.
Dustproof its processing and fabricating of defrost system of a kind of full automatic truck carried sun-shading rainproof of the present invention is very simple and convenient, processing and fabricating shown in by specification accompanying drawing.
More than for the present invention for embodiment, only establish for ease of explanation, can not limit meaning of the present invention with this.
Claims (1)
1. an automatic gear shift apparatus, it is characterized by: several groups of belt drivers are combined, make driving wheel coaxial, flower wheel is coaxial, wherein the flower wheel in every group of belt driver is all single direction ratchet structure, the single direction ratchet of the coaxial flower wheel of several groups of belt drivers of combining is in the same way, and the workload of the band transmission of several groups of belt drivers increases progressively successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410266718.5A CN103991505A (en) | 2014-06-16 | 2014-06-16 | Automatic gear shifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410266718.5A CN103991505A (en) | 2014-06-16 | 2014-06-16 | Automatic gear shifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103991505A true CN103991505A (en) | 2014-08-20 |
Family
ID=51305912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410266718.5A Pending CN103991505A (en) | 2014-06-16 | 2014-06-16 | Automatic gear shifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103991505A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276037A (en) * | 1979-04-23 | 1981-06-30 | Deere & Company | Load responsive drive mechanism |
| CN2091812U (en) * | 1991-05-28 | 1992-01-01 | 曹志波 | Tricycle with variable speed |
| FR2731671B1 (en) * | 1995-03-13 | 1997-05-09 | Norbert Catherin | BICYCLE WITH A LARGE DRIVE WHEEL |
| CN2841494Y (en) * | 2005-10-13 | 2006-11-29 | 卢子标 | Surmount dual-range transmission |
| CN2897808Y (en) * | 2006-03-06 | 2007-05-09 | 马光兵 | Speed-shifting bicycle with double chain |
-
2014
- 2014-06-16 CN CN201410266718.5A patent/CN103991505A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276037A (en) * | 1979-04-23 | 1981-06-30 | Deere & Company | Load responsive drive mechanism |
| CN2091812U (en) * | 1991-05-28 | 1992-01-01 | 曹志波 | Tricycle with variable speed |
| FR2731671B1 (en) * | 1995-03-13 | 1997-05-09 | Norbert Catherin | BICYCLE WITH A LARGE DRIVE WHEEL |
| CN2841494Y (en) * | 2005-10-13 | 2006-11-29 | 卢子标 | Surmount dual-range transmission |
| CN2897808Y (en) * | 2006-03-06 | 2007-05-09 | 马光兵 | Speed-shifting bicycle with double chain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140820 |
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| WD01 | Invention patent application deemed withdrawn after publication |