CN107554681B - Transmission and bicycle - Google Patents
Transmission and bicycle Download PDFInfo
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- CN107554681B CN107554681B CN201710763460.3A CN201710763460A CN107554681B CN 107554681 B CN107554681 B CN 107554681B CN 201710763460 A CN201710763460 A CN 201710763460A CN 107554681 B CN107554681 B CN 107554681B
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Abstract
The invention discloses a speed changer and a bicycle, wherein the speed changer comprises a rotary table which can be rotatably arranged, a transmission shaft which can be rotatably arranged, a transmission chain, a transmission assembly and a chain shifting device; a plurality of circles of insections are sequentially arranged on the turntable along the direction away from the rotation axis of the turntable; the transmission assembly comprises a plurality of transmission rods; the transmission rods are respectively in one-to-one correspondence with the circles of insections; the transmission rods are respectively fixed with a first transmission gear and a second transmission gear meshed with the corresponding insections; the first transmission gears on the transmission rods are sequentially connected along the axial direction of the transmission rods; the transmission shaft is provided with a third transmission gear which can slide along the axis direction of the transmission shaft and synchronously rotate with the transmission shaft; the transmission chain is wound on the third transmission gear and any one of the first transmission gears. The invention has simple structure, is convenient for assembly and is beneficial to reducing the cost; in addition, the probability of chain blocking and chain releasing can be reduced.
Description
Technical Field
The present invention relates to a transmission and a bicycle.
Background
Transmissions are widely used in vehicles as means for shifting gear ratios. Along with the development of technology, the technology of the speed changer is more advanced, the variety is increased, the use convenience is improved, but the structural parts of the speed changer are more and heavier, the assembly time is longer, the cost is higher, and the industrial requirement can not be met.
Disclosure of Invention
In order to overcome the defects in the prior art, one of the purposes of the invention is to provide a transmission which has a simple structure and is convenient to assemble, thereby being beneficial to reducing the cost.
Another object of the present invention is to provide a bicycle having the above-mentioned transmission.
In order to solve the problems, the invention adopts the following technical scheme:
a speed changer comprises a rotary table which can be rotatably arranged, a transmission shaft which can be rotatably arranged, a transmission chain, a transmission assembly and a chain shifting device; a plurality of circles of insections are sequentially arranged on the turntable along the direction away from the rotation axis of the turntable; each ring of insections comprises a plurality of teeth circumferentially arranged around the rotational axis of the turntable; the transmission assembly comprises a plurality of transmission rods which are sleeved in sequence from inside to outside and can rotate relatively; the transmission rods are respectively in one-to-one correspondence with the circles of insections; the transmission rods are respectively fixed with a first transmission gear and a second transmission gear meshed with the corresponding insections; the first transmission gears on the transmission rods are sequentially connected along the axial direction of the transmission rods; the central axis of the transmission shaft is parallel to and staggered with the central axis of the transmission rod; the transmission shaft is provided with a third transmission gear which can slide along the axis direction of the transmission shaft and synchronously rotate with the transmission shaft; the transmission chain is wound on the third transmission gear and any one of the first transmission gears; the derailleur is used for further, the drive chain is stirred along the axis direction of transfer line.
Further, one end of the transmission rod is fixed with the first transmission gear, and the other end of the transmission rod is fixed with the second transmission gear.
Further, the first transmission gear, the second transmission gear and the corresponding insections on the transmission rod form a gear train, and the comprehensive tooth number value a of the gear train=the tooth number of the second transmission gear ≡ (the tooth number of the first transmission gear×the tooth number of the corresponding insections) is different from the comprehensive tooth number value a of each gear train.
Further, the ratio of the number of teeth of the second transmission gear on each transmission rod to the number of teeth of the corresponding insection is a gear ratio b, and the gear ratios b of the gear trains are different.
Further, the shapes of the first transmission gears are the same, and the shapes of the second transmission gears are the same; the tooth numbers of the insections are different.
Further, the lengths of the plurality of transmission rods are gradually shortened along the arrangement direction from inside to outside.
Further, the derailleur is a derailleur; pedals are fixed on the turntable.
Further, the third transmission gear is sleeved on the transmission shaft and is provided with a groove extending along the axis direction of the transmission shaft, and the transmission shaft is provided with a protruding part embedded in the groove.
In order to solve the second problem, the invention adopts the following technical scheme:
the bicycle comprises a bicycle body, wherein the transmission is arranged on the bicycle body, and a transmission shaft of the transmission is in transmission connection with wheels of the bicycle body.
The transmission rod positioned on the outer side in the transmission assembly is rotatably arranged on the vehicle body.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts the combined design of the turntable, the transmission shaft, the transmission chain, the transmission component and the chain shifting device, and by reasonably arranging the turntable and the transmission component, the invention has simple structure, is convenient for assembly and is beneficial to reducing the cost; in addition, the probability of chain blocking and chain releasing can be reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the sleeving of the plurality of transmission rods;
fig. 3 is a schematic diagram of the cooperation of the transmission shaft and the third transmission gear.
In the figure: 10. a turntable; 11. tooth patterns; 20. a transmission shaft; 21. a boss; 30. a drive chain; 40. a transmission assembly; 41. a transmission rod; 42. a first transmission gear; 43. a second transmission gear; 50. a derailleur; 60. a third transmission gear; 61. a groove.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
1-3, a transmission includes a rotatably disposed turntable 10, a rotatably disposed drive shaft 20, a drive chain 30, a drive assembly 40, and a derailleur 50; a plurality of circles of insections 11 are sequentially arranged on the turntable 10 along the direction away from the rotation axis A1; each ring of insections 11 comprises a plurality of teeth arranged circumferentially about the rotation axis A1 of the turntable 10; the transmission assembly 40 comprises a plurality of transmission rods 41 which are sleeved in sequence from inside to outside and can rotate relatively; the plurality of transmission rods 41 are respectively in one-to-one correspondence with the plurality of rings of insections 11; the transmission rods 41 are respectively fixed with a first transmission gear 42 and a second transmission gear 43 meshed with the corresponding insection 11; the first transmission gears 42 on the plurality of transmission rods 41 are sequentially connected along the axial direction L of the transmission rods 41; the central axis of the transmission shaft 20 is parallel to and staggered with the central axis of the transmission rod 41; the transmission shaft 20 is provided with a third transmission gear 60 which can slide along the axial direction of the transmission shaft 20 and synchronously rotate with the transmission shaft 20; the transmission chain 30 is wound on the third transmission gear 60 and any first transmission gear 42; the derailleur 50 is used for shifting the drive chain 30 along the axial direction of the drive rod 41.
When in use, through the rotation of the rotary table 10, each second transmission gear 43 rotates under the driving action of the corresponding insection 11 and drives each transmission rod 41 to rotate independently, at this time, each first transmission gear 42 rotates along with the transmission rod 41, and the first transmission gear 42 wound by the transmission chain 30 drives the third transmission gear 60 to rotate through the transmission chain 30 so as to drive the transmission shaft 20 to rotate. By shifting the drive chain 30 along the axial direction of the drive rod 41 by the derailleur 50, the third drive gear 60 slides along the axial direction of the drive shaft 20, so that the drive chain 30 can be shifted to a different first drive gear 42, and the rotational speed of the drive shaft 20 can be changed. The invention adopts the combination design of the rotary table 10, the transmission shaft 20, the transmission chain 30, the transmission assembly 40 and the chain shifting device 50, and a plurality of circles of insections 11 are sequentially arranged on the rotary table 10 along the direction far away from the rotation axis, so that gears are not required to be fixedly arranged on the rotary table 10, the assembly time can be saved, and the transmission assembly 40 adopts a plurality of transmission rods 41 which are sequentially sleeved from inside to outside and can rotate relatively, and the first transmission gears 42 and the second transmission gears 43 are fixedly arranged on the transmission rods 41, so that the structure is simple, the assembly is convenient, and the cost is reduced; in addition, since the first driving gears 42 on the plurality of driving rods 41 are sequentially engaged along the axial direction of the driving rods 41, when the derailleur device 50 is used for shifting the driving chain 30, the probability of chain locking and unlocking of the driving chain 30 can be reduced.
Further, the first transmission gear 42 is fixed to one end of the transmission rod 41, and the second transmission gear 43 is fixed to the other end. By adopting the structure, the manufacturing is convenient.
Further, the first transmission gear 42, the second transmission gear 43 and the corresponding insection 11 on the transmission rod 41 are configured as gear trains, and the integrated gear number value a of the gear trains is different from the integrated gear number value a of the gear trains. Since the integrated tooth number value a directly affects the gear ratio, the gear ratios of the respective gear trains can be made different by setting the integrated tooth number value a of the respective gear trains to be different.
Further, the ratio of the number of teeth of the second transmission gear 43 on each transmission lever 41 to the number of teeth of the corresponding insection 11 is a first-order gear ratio b, and the first-order gear ratios b of each gear train are different.
Further, the shapes of the first transmission gears 42 are the same, and the shapes of the second transmission gears 43 are the same, that is, the diameters and the numbers of teeth of the first transmission gears 42 are the same, and the diameters and the numbers of teeth of the second transmission gears 43 are the same, so that different transmission ratios can be obtained only by setting the numbers of teeth of the insections 11 to be different.
Further, the lengths of the plurality of transmission rods 41 are gradually shortened along the arrangement direction from inside to outside, that is, the length of the transmission rod 41 inside is longer than the length of the transmission rod 41 outside, so that the transmission rod 41 inside can be partially exposed outside the transmission rod 41 outside, which is convenient for fixing the first transmission gear 42 and the second transmission gear 43. In this embodiment, the transmission rod 41 located inside is solid cylindrical, and the remaining transmission rods 41 are hollow cylindrical.
The derailleur 50 can be any of those available in the market, as long as the drive chain 30 can be shifted, for example, a derailleur can be used.
Specifically, pedals are fixed on the turntable 10, so that when the bicycle is used, the turntable 10 can be driven to rotate by the user stepping on the pedals.
Further, the third transmission gear 60 is sleeved on the transmission shaft 20, and is provided with a groove 61 extending along the axial direction of the transmission shaft 20, and the transmission shaft 20 is provided with a protrusion 21 embedded in the groove 61, so that the third transmission gear 60 can slide along the axial direction of the transmission shaft 20 and rotate synchronously with the transmission shaft 20. By adopting the structure, the manufacturing is simpler and more convenient.
The invention also discloses a bicycle with the speed changer, which comprises a bicycle body, wherein the speed changer is arranged on the bicycle body. Specifically, the turntable 10 of the transmission is rotatably mounted on a vehicle body; the transmission rod 41 located at the outer side of the transmission assembly 40 is rotatably installed on the vehicle body, and the transmission shaft 20 is rotatably installed on the vehicle body and is in transmission connection with the wheels of the vehicle body, so that the wheels can be rotated by using the transmission shaft 20.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (5)
1. A transmission, characterized in that: comprises a rotary table which can be rotatably arranged, a transmission shaft which can be rotatably arranged, a transmission chain, a transmission assembly and a chain shifting device; a plurality of circles of insections are sequentially arranged on the turntable along the direction away from the rotation axis of the turntable; each ring of insections comprises a plurality of teeth circumferentially arranged around the rotational axis of the turntable; the transmission assembly comprises a plurality of transmission rods which are sleeved in sequence from inside to outside and can rotate relatively; the transmission rods are respectively in one-to-one correspondence with the circles of insections; the transmission rods are respectively fixed with a first transmission gear and a second transmission gear meshed with the corresponding insections; the first transmission gears on the transmission rods are sequentially connected along the axial direction of the transmission rods; the central axis of the transmission shaft is parallel to and staggered with the central axis of the transmission rod; the transmission shaft is provided with a third transmission gear which can slide along the axis direction of the transmission shaft and synchronously rotate with the transmission shaft; the transmission chain is wound on the third transmission gear and any one of the first transmission gears; the chain shifting device is used for shifting the transmission chain along the axial direction of the transmission rod; one end of the transmission rod is fixed with the first transmission gear, and the other end of the transmission rod is fixed with the second transmission gear; the lengths of the transmission rods are gradually shortened along the arrangement direction from inside to outside; the first transmission gear, the second transmission gear and the corresponding insections on the transmission rod form a gear train, the comprehensive tooth number value a of the gear train is equal to the tooth number of the second transmission gear/the tooth number of the second transmission gear (the tooth number of the first transmission gear is equal to the tooth number of the corresponding insections), and the comprehensive tooth number values a of the gear trains are different; the ratio of the number of teeth of the second transmission gear on each transmission rod to the number of teeth of the corresponding insection is a gear ratio b, and the gear ratios b of the gear trains are different; the shape of each first transmission gear is the same, and the shape of each second transmission gear is the same; the tooth numbers of the insections are different.
2. The transmission of claim 1, wherein: the chain-pulling device is a chain-pulling device; pedals are fixed on the turntable.
3. The transmission of claim 1, wherein: the third transmission gear is sleeved on the transmission shaft and is provided with a groove extending along the axis direction of the transmission shaft, and the transmission shaft is provided with a protruding part embedded in the groove.
4. Bicycle, including automobile body, its characterized in that: a transmission as claimed in any one of claims 1 to 3, which is mounted on the vehicle body and the drive shaft of which is in driving connection with the wheels of the vehicle body.
5. The bicycle of claim 4, wherein: the transmission rod positioned on the outer side in the transmission assembly is rotatably arranged on the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763460.3A CN107554681B (en) | 2017-08-30 | 2017-08-30 | Transmission and bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763460.3A CN107554681B (en) | 2017-08-30 | 2017-08-30 | Transmission and bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107554681A CN107554681A (en) | 2018-01-09 |
| CN107554681B true CN107554681B (en) | 2023-08-29 |
Family
ID=60978154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710763460.3A Active CN107554681B (en) | 2017-08-30 | 2017-08-30 | Transmission and bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107554681B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067357A (en) * | 2020-08-26 | 2020-12-11 | 河南理工大学 | Real-time sealing and mining device of town river sediment sample normal position |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180583Y (en) * | 1993-11-24 | 1994-10-26 | 陈灵仙 | Bicycle chainless gearing speed changing device |
| CN201472610U (en) * | 2009-07-03 | 2010-05-19 | 徐法坤 | Electromagnetic controlled variable speed bicycle transmission mechanism |
| CN102019995A (en) * | 2009-09-22 | 2011-04-20 | 陈源海 | Transmission speed change mechanism for chainless bicycle |
| CN104192257A (en) * | 2014-09-24 | 2014-12-10 | 湖北民族学院 | Disc-type speed variation device |
| CN204399434U (en) * | 2015-02-07 | 2015-06-17 | 周明 | Chainless bicycle cone gear driving device |
| CN207311756U (en) * | 2017-08-30 | 2018-05-04 | 倍能科技（广州）有限公司 | A kind of speed changer and bicycle |
-
2017
- 2017-08-30 CN CN201710763460.3A patent/CN107554681B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180583Y (en) * | 1993-11-24 | 1994-10-26 | 陈灵仙 | Bicycle chainless gearing speed changing device |
| CN201472610U (en) * | 2009-07-03 | 2010-05-19 | 徐法坤 | Electromagnetic controlled variable speed bicycle transmission mechanism |
| CN102019995A (en) * | 2009-09-22 | 2011-04-20 | 陈源海 | Transmission speed change mechanism for chainless bicycle |
| CN104192257A (en) * | 2014-09-24 | 2014-12-10 | 湖北民族学院 | Disc-type speed variation device |
| CN204399434U (en) * | 2015-02-07 | 2015-06-17 | 周明 | Chainless bicycle cone gear driving device |
| CN207311756U (en) * | 2017-08-30 | 2018-05-04 | 倍能科技（广州）有限公司 | A kind of speed changer and bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107554681A (en) | 2018-01-09 |
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| CB02 | Change of applicant information |
Address after: 510700 Room 303, Building A, No. 1 Nanxiang Branch Road, Huangpu District, Guangzhou City, Guangdong Province (office only) Applicant after: BEINENG TECHNOLOGY (GUANGZHOU) Co.,Ltd. Address before: Haizhuqu District Guangzhou City, Guangdong province 510240 Tongfu Road No. 640 1-3 floor of the first floor of the northwest side Applicant before: BEINENG TECHNOLOGY (GUANGZHOU) Co.,Ltd. |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230801 Address after: No.99, Gonger Road, laopu village, Xinpu Town, Cixi City, Ningbo City, Zhejiang Province Applicant after: Ningbo H & L Bicycle Co.,Ltd. Address before: 510700 Room 303, building a, No.1 Nanxiang Branch Road, Huangpu District, Guangzhou City, Guangdong Province (office only) Applicant before: BEINENG TECHNOLOGY (GUANGZHOU) Co.,Ltd. |
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