CN201009982Y - Speed governing non-chain bicycle - Google Patents
Speed governing non-chain bicycle Download PDFInfo
- Publication number
- CN201009982Y CN201009982Y CNU2007202000552U CN200720200055U CN201009982Y CN 201009982 Y CN201009982 Y CN 201009982Y CN U2007202000552 U CNU2007202000552 U CN U2007202000552U CN 200720200055 U CN200720200055 U CN 200720200055U CN 201009982 Y CN201009982 Y CN 201009982Y
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- gear
- speed
- clutch
- speed governing
- chain
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Abstract
A speed regulation non-chain bicycle: An middle shaft thereof is a power input shaft of a multi-staged driving gearbox; an output shaft of the multi-staged driving gearbox is connected with wheels through a gear driving device and an overrunning clutch. Compared with the prior bicycles of the same kind, the utility model can resolve the problems of complex structure, low mechanism driving efficiency and small speed regulation range in the prior speed regulation non-chain bicycles.
Description
Technical field
The utility model relates to technical field of bicycles, and especially a kind of scalable axis is to the bicycle of vehicle wheel rotational speed transmitting ratio.
Background technology
The standard bicycle Power train is connected, is provided with in it flywheel that ratchet ratchet constitutes overriding clutch and constitutes with trailing wheel by the drive sprocket on pedal, crank, the axis, chain with on being contained in rear axle.Bicycle is to be pedaled by the cyclist to step on pedal when riding, and the rotation of axis is driven by above-mentioned Power train the trailing wheel rotation moves ahead, and the rotating speed transmitting ratio of the bicycle power driving mechanism of this structure is fixed.In fact, people are pedaled the speed of stepping on pedal by bike the time a proper speed scope, cross low or too high can difficulty for riding all, if it is excessive that the bicycle of this fixed drive ratio is provided with the transmitting ratio of Power train, though be beneficial to imput power when the car high speed, but when car low speed is ridden and the pedal rotating speed of axis interlock low excessively, the cyclist is difficult to power is imported axis, car low speed starting and walking are ridden painstakingly; If it is too small that the transmitting ratio of Power train is set, after the speed of a motor vehicle rises to a certain degree,, therefore be difficult to improve again the car speed of a motor vehicle just the cyclist is difficult to still import enough moments of torsion under the situation about stepping on pedaling at a high speed.The existing bicycle that can change transmitting ratio mostly is still the employing chain gear, just all change the chain wheel set that the sprocket wheel by the different numbers of teeth constitutes into, reach the purpose of conversion transmitting ratio by the driving and driven sprocket wheel of the different numbers of teeth of conversion at drive sprocket and driven sprocket.But the transmitting ratio of the bicycle of this drive mechanism, also be that speed adjustable range is still limited, still can not give full play to the maximum capacity of people's muscle power, and because the driving and driven sprocket wheel of the different numbers of teeth of conversion, therefore also need long chain is carried out tensioning, this long chain and conversion sprocket wheel all take off the chain fault easily, and functional reliability is not high.
Disclosed in the patent documentation " Chainless bicycle umbrella wheel drive unit " (patent No. is 94237490.8), it is to adopt the transmission of bevel gear wheel to replace traditional chain gear, though this bicycle has overcome the insecure problem of chain transmission mode work, and has an advantage of long service life, but its transmitting ratio is constant, can not effectively improve the moving velocity of bicycle when satisfying low speed driving.
Chinese patent disclosed " bicycle height dual drive " (patent announcement number be CN2163788Y), its architectural feature is to set up the gear cluster transmission device on the basis of existing bicycle, promptly the top between sprocket wheel and flywheel is provided with the variable-speed drive that multi-group has big miniature gears and chain, the engagement transferring power by the engagement between gear and chain and sprocket wheel and increase, deceleration/decel.Such transmission structures complexity adopt big, the serious wear of multiple sets of teeth wheel speed change frictional resistance, thereby driving efficiency is lower; Stressed when big, also usually be subjected to the chain slippage to rudimentary ratio gear, even the puzzlement that comes off, make reliable transmission reduce greatly; And its speed adjustable range is narrow, can not adapt to many speed of the modern means of communication, high-revolving adjusting requirement.
Summary of the invention
The problem that speed governing chain-less bicycle provided by the utility model, its problem to be solved are existing speed governing chain-less bicycle complex structures, mechanism driving efficient is low and speed adjustable range is little.
In order to solve above-mentioned purpose, the scheme that the utility model adopts is this gear speed governing chain-less bicycle, it have with the axis of pedal crank connecting link and the described axis of wheel that is contained on the vehicle frame be the power input shaft of a multistage transfer gear box, the output shaft of this multistage transfer gear box is connected with described wheel with overriding clutch by gear system.
Above-mentioned multistage transfer gear box can make that to have the two-stage transmission at least be the speed change transmission of variable-speed ratio, but the speed change transmission of above-mentioned multistage transfer gear box can be made of the gear cluster of constant-mesh and the change gear group of clutch; Wherein the constant mesh gear group connects firmly gear by one and a cliding gear constitutes; Wherein but the change gear group of clutch connects firmly gear by one with control fork bonded assembly shifting slide gear and one and constitutes; Be equipped with the clutch part of dental clutch on the corresponding surface of the gear of described shifting slide gear and constant mesh gear group coaxial mounted with it.The speed change transmission of above-mentioned multistage transfer gear box can also by one with control fork bonded assembly duplex connect firmly gear and two be used for this dual gear engagement the gear that connects firmly constitute.But the multi-change speed of above-mentioned multistage transfer gear box can also be to have the speed change transmission of one-level to be made of the gear cluster of constant-mesh and the change gear group of clutch; Wherein the constant mesh gear group connects firmly gear by one and a cliding gear constitutes; Wherein but the change gear group of clutch connects firmly gear by one with control fork bonded assembly shifting slide gear and one and constitutes; Be equipped with the clutch part of dental clutch on the corresponding surface of the gear of described shifting slide gear and constant mesh gear group coaxial mounted with it; The transmission of another grade speed change by one with control fork bonded assembly duplex connect firmly gear and two be used for this dual gear engagement the gear that connects firmly constitute.Driving gear on the above axis is preferably all cased hermetically to the gear transmission parts that are connected on the described trailing wheel, and is loaded with lubricating oil in described shell; The output shaft of above-mentioned multistage transfer gear box can also be contained in the back breeches pipe of vehicle frame, and the finishing bevel gear cuter that this output shaft two ends gear coupling is preferably circle-arc tooth connects.
The application is alleged connects firmly gear and is meant with being connected of its it is the gear of captive joint, and it can not rotate with respect to axle wherein, can not be in axial sliding along axle wherein; The alleged cliding gear of the application be meant with being connected of its be the gear that is contained in versatilely on the axle, it can only rotate with respect to axle wherein, can not be in axial sliding along axle wherein; The alleged shifting slide gear of the application be meant with being connected of its be the gear that is contained in versatilely on the axle, it can not rotate with respect to axle wherein, can only be in axial sliding along axle wherein.
Owing to adopted such scheme the utility model compared with prior art to have following beneficial effect:
1, reliability height.Because whole shifting mechanism realized by gear transmission, therefore, can solve prior art and in gear shift and operational process, take off the chain phenomenon.
2, the transmission speed ratio setting range is wide.Because multistage transmission is set, and can the speed change transmission be set multistage, therefore have the big characteristics of transmitting ratio setting range, not only can start to walk like a cork to travel, but and only pedal the frequency of stepping on 40 times and just can obtain to reach 1: 1.5～1: 13 than scope greater than 60 kilometers speed transmission per hour with per minute.
3, adopt gearbox designs to be exposed to outer gear, chain gear scheme and to compare, not only can avoid dust pollution, can also keep good lubricating status, have therefore that friction drag is little, transmission efficiency is high with existing.
4, compact conformation.The output shaft of multistage transfer gear box is contained in the back breeches pipe of vehicle frame, the bevel gear bonded assembly organization plan that this output shaft two ends gear coupling is a circle-arc tooth with have top between sprocket wheel and flywheel now and multi-group is set has the variable-speed drive of big miniature gears and chain to compare, dwindled the volume of speed-changing mechanism greatly, not only change speed gear box can be arranged on the axis, and its volume can also adapt to the custom that pin is stepped on.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of multistage transfer gear box among the utility model embodiment.
Fig. 3 is the positional structure scheme drawing of multistage transfer gear box control fork among the utility model embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing example structure of the present utility model is described in further detail:
The described speed governing chain-less bicycle of Fig. 1, its vehicle frame, wheel, steering unit etc. are identical with general ordinary bicycle, it and pedal crank 3 bonded assembly axis 4 are the power input shaft of multistage transfer gear box 5, and the output shaft of multistage transfer gear box 5 is connected with overriding clutch 2 on being contained in trailing wheel 1 by a pair of garden spiral bevel gear.
Fig. 2, shown in Figure 3, the multistage transfer gear box of this speed governing chain-less bicycle is three grades of transmissions, and wherein first and second grade transmission is the speed change transmission of variable-speed ratio, and third stage transmission is the speed change transmission of fixed drive ratio, wherein:
But first order transmission is by axis 4 and tween drive shaft 13 and be contained in the gear cluster of two pairs of constant-meshes on this diaxon and the change gear group of a pair of clutch etc. and constitute.Wherein in the gear cluster of the constant-mesh that is made of gear 12 and gear 14, gear 12 is the flexible connections that do not have key with axis 4, and gear 14 is to captive joint with tween drive shaft 13 by key; In like manner, in the gear cluster of the constant-mesh that is made of gear 10 and gear 9, gear 10 is the flexible connections that do not have key with axis 4, and gear 9 is to captive joint with tween drive shaft 13 by key; But in the change gear group of the clutch that constitutes by gear 11 and gear 15, gear 15 is to captive joint with tween drive shaft 13 by key, gear 11 is to flexibly connect by spline and axis 4, being provided with chute in the gear 11 is connected with control fork 21, its both sides are provided with the tooth that engages the dental clutch of usefulness with gear 10 and gear 12, and gear 10 and gear 12 and gear 11 cooresponding sides also are provided with the tooth of the dental clutch that engages usefulness.When control fork 21 handsetting gears 11 make it when axis 4 slides into gear 15 engagement, only idle running on axis 4 of gear 10,12, transferring power not, first order transmission is born by gear 15 and gear 11, the power of axis 4 inputs passes on the tween drive shaft 13 by gear 15 and gear 11, and its transmitting ratio is by the tooth ratio decision of this two gear; Make when control fork 21 handsetting gears 11 make it to slide along axis 4 that gear 11 separates with gear 15, during the indented joint of gear 11 and gear 10 sides, only idle running on axis 4 of gear 12, first order transmission is that axis passes to tween drive shaft 13 by gear 11, gear 10, gear 9 with power successively, and its transmitting ratio is by the tooth ratio decision of gear 9 and gear 10; Make when control fork 21 handsetting gears 11 make it to slide along axis 4 that gear 11 separates with gear 15, during the indented joint of gear 11 and gear 12 sides, only idle running on axis 4 of gear 10, first order transmission is that axis 4 passes to tween drive shaft 13 by gear 11, gear 12, gear 14 with power successively, and its transmitting ratio is by the tooth ratio decision of gear 12, gear 14.
Second stage transmission is by tween drive shaft 13 and tween drive shaft 16 and be contained in dual gear 6 on this diaxon and gear 7,8 etc. constitutes.Dual gear 6 flexibly connects by spline and tween drive shaft 16, and gear 7,8 is captiveed joint with tween drive shaft 13 by flat key.When control fork 20 handsetting gears 6 endwisely slip when making it with gear 8 engagement along tween drive shaft 16, second stage transmission is from tween drive shaft 13 power to be driven tween drive shafts 16 by gear 8, dual gear 6 successively to rotate, its transmitting ratio by tool wheel 8 and the tooth that joins the wherein gear on the gear 6 again than determining; When control fork 20 handsetting gears 6 endwisely slip when making it with gear 7 engagement along tween drive shaft 16, second stage transmission is from tween drive shaft 13 power to be driven tween drive shafts 16 by gear 7, dual gear 6 successively to rotate, its transmitting ratio by tool wheel 7 and the tooth that joins the wherein gear on the gear 6 again than determining.
Third stage transmission is made of tween drive shaft 16, output shaft 18 and the finishing bevel gear cuter 17,19 that is contained on them, and wherein the tooth on the finishing bevel gear cuter 17,19 is a circle-arc tooth, its transmitting ratio by the tooth of this two gear than decision.
This speed governing chain-less bicycle, can obtain the speed ratio of 6 gears, thereby can make the powerdriven speed ratio setting range of this car very wide in different positions by 20,21 pinions 11 of control fork and dual gear 6.For wheel diameter is the bicycle of 660mm, not only light when low speed is started to walk, and only pedals the frequency of stepping on 40 times with per minute and just can obtain greater than 60 kilometers speed per hour when running at high speed.
Claims (9)
1. speed governing chain-less bicycle, it has axis and the wheel that is contained on the vehicle frame with the pedal crank connecting link, it is characterized in that: described axis is a power input shaft that contains multistage transfer gear box, and the output shaft of this multistage transfer gear box is connected with described wheel with overriding clutch by gear system.
2. speed governing chain-less bicycle according to claim 1 is characterized in that: it is the speed change transmission of variable-speed ratio that described multistage transfer gear box has the two-stage transmission at least.
3. speed governing chain-less bicycle according to claim 2 is characterized in that: but the speed change transmission of described multistage transfer gear box is made of the gear cluster of constant-mesh and the change gear group of clutch; Wherein the constant mesh gear group connects firmly gear by one and a cliding gear constitutes; Wherein but the change gear group of clutch connects firmly gear by one with control fork bonded assembly shifting slide gear and one and constitutes; Be equipped with the clutch part of dental clutch on the corresponding surface of the gear of described shifting slide gear and constant mesh gear group coaxial mounted with it.
4. speed governing chain-less bicycle according to claim 2 is characterized in that: the speed change transmission of described multistage transfer gear box by one with control fork bonded assembly duplex connect firmly gear and two be used for this dual gear engagement the gear that connects firmly constitute.
5. according to claim 1 or 2 described speed governing chain-less bicycles, it is characterized in that: but there is the speed change transmission of one-level to constitute by the gear cluster of constant-mesh and the change gear group of clutch; Wherein the constant mesh gear group connects firmly gear by one and a cliding gear constitutes; Wherein but the change gear group of clutch connects firmly gear by one with control fork bonded assembly shifting slide gear and one and constitutes; Be equipped with the clutch part of dental clutch on the corresponding surface of the gear of described shifting slide gear and constant mesh gear group coaxial mounted with it; The transmission of another grade speed change by one with control fork bonded assembly duplex connect firmly gear and two be used for this dual gear engagement the gear that connects firmly constitute.
6. according to claim 1,2,3 or 4 described speed governing chain-less bicycles, it is characterized in that: all cased hermetically from the driving gear on the described axis to the gear transmission parts that are connected on the described trailing wheel, and in described shell, be loaded with lubricating oil.
7. speed governing chain-less bicycle according to claim 5 is characterized in that: all cased hermetically from the driving gear on the described axis to the gear transmission parts that are connected on the described trailing wheel, and in described shell, be loaded with lubricating oil.
8. speed governing chain-less bicycle according to claim 6 is characterized in that: the output shaft of described multistage transfer gear box is contained in the back breeches pipe of vehicle frame; The bevel gear that this output shaft two ends gear coupling is a circle-arc tooth connects.
9. speed governing chain-less bicycle according to claim 7 is characterized in that: the output shaft of described multistage transfer gear box is contained in the back breeches pipe of vehicle frame; The bevel gear that this output shaft two ends gear coupling is a circle-arc tooth connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202000552U CN201009982Y (en) | 2007-02-07 | 2007-02-07 | Speed governing non-chain bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202000552U CN201009982Y (en) | 2007-02-07 | 2007-02-07 | Speed governing non-chain bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201009982Y true CN201009982Y (en) | 2008-01-23 |
Family
ID=39044919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007202000552U Expired - Fee Related CN201009982Y (en) | 2007-02-07 | 2007-02-07 | Speed governing non-chain bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201009982Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455241A (en) * | 2014-11-03 | 2015-03-25 | 张启良 | Gear shifting planet gear speed reducer for electric wheelchair |
| CN107176257A (en) * | 2017-06-29 | 2017-09-19 | 太仓市荣驰电机有限公司 | A kind of longitudinal motor driven systems of bicycle |
| CN113401274A (en) * | 2021-05-16 | 2021-09-17 | 蔡明� | Speed changing box in bicycle middle shaft |
-
2007
- 2007-02-07 CN CNU2007202000552U patent/CN201009982Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455241A (en) * | 2014-11-03 | 2015-03-25 | 张启良 | Gear shifting planet gear speed reducer for electric wheelchair |
| CN107176257A (en) * | 2017-06-29 | 2017-09-19 | 太仓市荣驰电机有限公司 | A kind of longitudinal motor driven systems of bicycle |
| CN113401274A (en) * | 2021-05-16 | 2021-09-17 | 蔡明� | Speed changing box in bicycle middle shaft |
| CN113401274B (en) * | 2021-05-16 | 2023-08-08 | 佛山市顺德区智趣动电子商务有限公司 | Gear box in middle shaft of 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: 20080123 |