CN105882874A - Chain wheel structure of ultralight large-stiffness variable speed bicycle - Google Patents
Chain wheel structure of ultralight large-stiffness variable speed bicycle Download PDFInfo
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- CN105882874A CN105882874A CN201510464479.9A CN201510464479A CN105882874A CN 105882874 A CN105882874 A CN 105882874A CN 201510464479 A CN201510464479 A CN 201510464479A CN 105882874 A CN105882874 A CN 105882874A
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- column foot
- step tower
- ultralight
- type conical
- conical bench
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Abstract
The invention relates to the field of a variable speed bicycle, and particularly relates to a chain wheel structure of an ultralight large-stiffness variable speed bicycle. The chain wheel structure comprises a taper step tower footing, sprockets and a spline structure, wherein the taper step tower footing comprises a plurality of step tower tubes, the radiuses of the step tower tubes change alternately, the step tower tubes are sequentially connected to form the taper step tower footing, and the annular sprockets are distributed on the radial side of each step tower tube. On the premise of guaranteeing the structure strength and the stiffness of a chain wheel, the total mass of the chain wheel is reduced by 30%-80% due to structure optimization and the adoption of a high-strength low-density material, and the chain wheel structure has a very remarkable comparative advantage on the aspect of light weight.
Description
Technical field
The present invention relates to multi-speed bicycle field, be specifically related to a kind of ultralight big rigidity speed change voluntarily
Blockchain wheel construction.
Background technology
Lightweight, high intensity, high rigidity are current bicycle or even the pursuit of all vehicles
Eternal theme.After existing chain of speed-changing bicycle mostly is multi-disc punching press, closed assembly is riveted on one again
Rising, the usual production technology of this product structure is good, and cost is relatively low, but has two and mainly ask
Topic: one is that quality is relatively big, generally at about 300g to 450g；Two is that teeth portion rigidity is because of riveting
Connect and cause rigidity less.
For the problems referred to above, the present invention Optimal Structure Designing by sprocket wheel, devise a kind of super
Light big rigidity chain of speed-changing bicycle structure, it is intended to ensure the structural strength of sprocket wheel, rigidity and biography
On the premise of passing high pulling torque, alleviate sprocket wheel quality, it is achieved lightweight.
Summary of the invention
It is an object of the invention to provide a kind of ultralight big rigidity chain of speed-changing bicycle structure, protecting
On the premise of the card structural strength of sprocket wheel, rigidity, it is achieved structure lightened；To solve background skill
The existing chain of speed-changing bicycle architecture quality proposed in art is relatively big, and the skill that teeth portion rigidity is less
Art problem.
For solving its technical problem the technical solution adopted in the present invention it is: a kind of ultralight big rigidity
Chain of speed-changing bicycle structure, including type conical bench column foot 1, sprocket 2 and spline structure 3；
It is characterized in that: type conical bench column foot 1 comprises multiple step tower 11, radius alternation
Step tower 11 be sequentially connected formation type conical bench column foot 1, the radial direction of each step tower 11
Side is distributed annular sprocket 2, in the least radius step tower 11 of type conical bench column foot 1
Side is provided with spline structure 3.
Optimizing as the most concrete, described type conical bench column foot 1 is overall structure with sprocket 2,
Use the method manufacture of machine-building, can preferably ensure structural strength and the rigidity of sprocket wheel.
Optimizing as the most concrete, described each step tower 11 is evenly distributed with hollow hole 12；
The weight of type conical bench column foot 1 can be alleviated largely.
Optimizing as the most concrete, the number of plies of the step tower 11 of type conical bench column foot 1 is
3 layers to 11 layers.
Optimizing as the most concrete, the axial spacing of described each step tower 11 all can be identical,
Can also be different, within the excursion about ± 10% of spacing.
Optimizing as the most concrete, the radial spacing of institute's art step tower 11 can be identical, also
Can be different, the linear alternation of step sprocket 2 annular radius or index alternation relation.
Optimizing as the most concrete, described type conical bench column foot 1 and sprocket 2 are for using titanium to close
Gold, aluminium alloy or steel alloy material.
Optimize as the most concrete, the maximum radius step tower of described type conical bench column foot 1
11 axially external for monolithic tooth 4, the maximum radius step tower 11 of type conical bench column foot 1
Axially external limit be evenly distributed with double wedge 5, for carrying out assembly connection with monolithic tooth 4, cone
Shape step column foot inner radius 1 is connected with the inner radius of monolithic tooth 4 support tube 6.
Beneficial effect: the present invention Optimal Structure Designing by sprocket wheel, by traditional multi-disc punching press
The speed variable chain wheel structure that rear closed assembly rivets again is designed to monoblock type type conical bench column foot 1 and tower tooth
2, its type conical bench column foot 1 is overall manufacture, and is uniformly distributed hollow hole 12, its monoblock type
Type conical bench column foot 1 and sprocket 2, and each step tower 11 of type conical bench column foot 1 is uniform
Hollow hole 12 is distributed, this invention propose chain sprocket structure ensure sprocket wheel structural strength,
On the premise of rigidity, the gross mass of sprocket wheel can be made to reduce 100g to 330g, in terms of lightweight
There are the strongest comparative advantages.
Accompanying drawing explanation
Fig. 1 is type conical bench column foot 1 forward sight structural representation in the embodiment of the present invention one.
Fig. 2 is the embodiment of the present invention one middle sprocket assembly Structure of cross section schematic diagram.
Fig. 3 is type conical bench column foot 1 Structure of cross section schematic diagram in the embodiment of the present invention one.
Fig. 4 is type conical bench column foot 1 Structure of cross section schematic diagram in the embodiment of the present invention six.
In figure: 1 be type conical bench column foot, 2 for sprocket, 3 for spline structure, 4 for monolithic tooth, 5
For double wedge, 6 be support tube, 11 be step tower, 12 for hollow hole.
Detailed description of the invention
Further illustrate referring to the drawings and realize embodiments of the present invention (institute as shown in Figure 1 to Figure 4
Show):
Scheme one: a kind of ultralight big rigidity chain of speed-changing bicycle structure, including type conical bench tower
Base 1, sprocket 2 and spline structure 3；Type conical bench column foot 1 comprises multiple step tower 11,
The step tower 11 of radius alternation is sequentially connected formation type conical bench column foot 1, each step tower
The radial direction side of 11 is distributed annular sprocket 2, the least radius step tower of type conical bench column foot 1
It is provided with spline structure 3 inside cylinder 11；The maximum radius step tower of type conical bench column foot 1
11 axially external for monolithic tooth 4, the maximum radius step tower 11 of type conical bench column foot 1
Axially external limit be evenly distributed with double wedge 5, for carrying out assembly connection with monolithic tooth 4；Respectively
Step tower 11 is evenly distributed with hollow hole 12；Type conical bench column foot 1 and sprocket 2 are overall
Structure, uses the method manufacture of machine-building；Type conical bench column foot 1 and monolithic tooth 4 close for titanium
Gold material；Radial spacing and the axial spacing of each step tower 11 are the most identical, each step tower
The sprocket 2 annular radius linear alternation relation of cylinder 11；The step tower of type conical bench column foot 1
The number of plies of cylinder 11 is 7 layers.
The product manufactured by the embodiment of embodiment one, whole sprocket wheel is weighed after having assembled
For 105g, through long-time test run, loading moment of torsion 100N*m to 280N*m, repeatedly speed change is rapid
And smooth-going, continuously run 8000km without exception；The sprocket wheel that this embodiment manufactures, its structure is strong
Degree and rigidity all can keep preferable level, and its quality alleviates about 60% compared with the sprocket wheel of traditional structure.
Embodiment two: be with embodiment one difference: the number of plies of described step tower 11
It it is 3 layers.
The product manufactured by the embodiment of embodiment two, whole sprocket wheel is weighed after having assembled
For 82g, through long-time test run, loading moment of torsion 100N*m to 200N*m, repeatedly speed change is rapid
And smooth-going, continuously run 8000km without exception；The sprocket wheel that this embodiment manufactures, its structure is strong
Degree and rigidity all can keep preferable level, and its quality alleviates about 75% compared with the sprocket wheel of traditional structure.
Embodiment three: be with embodiment one difference: the number of plies of described step tower 11
It it is 11 layers.
The product manufactured by the embodiment of embodiment three, whole sprocket wheel is weighed after having assembled
For 150g, through long-time test run, loading moment of torsion 100N*m to 280N*m, repeatedly speed change is rapid
And smooth-going, continuously run 8000km without exception；The sprocket wheel that this embodiment manufactures, its structure is strong
Degree, rigidity and transmitting large torque all can keep preferable level, and its quality is compared with the sprocket wheel of traditional structure
Alleviate about 50%.
Embodiment four: be with embodiment one difference: described type conical bench column foot 1 and list
Sheet tooth 4 is aluminum alloy material.
The product manufactured by the embodiment of embodiment four, whole sprocket wheel is weighed after having assembled
For 65g, more long-time test run, load moment of torsion 100N*m to 200N*m, repeatedly speed change is rapid
And smooth-going, continuously run 3000km without exception；The sprocket wheel that this embodiment manufactures, its structure is strong
Degree and rigidity all can keep preferable level, and its quality alleviates about 80% compared with the sprocket wheel of traditional structure.
Embodiment five: be with embodiment one difference: described type conical bench column foot 1 and list
Sheet tooth 4 is steel alloy material.
The product manufactured by the embodiment of embodiment five, whole sprocket wheel is weighed after having assembled
For 180g, more long-time test run, load moment of torsion 100N*m to 250N*m, repeatedly speed change is fast
Speed and smooth-going, continuously run 20000km without exception；The sprocket wheel that this embodiment manufactures, its structure
Strength and stiffness all can keep preferable level, and it is left that its quality alleviates 30% compared with the sprocket wheel of traditional structure
Right.
Embodiment six: be with embodiment one difference: the footpath of described each step tower 11
All differing to spacing and axial spacing, tower tooth 2 annular radius of each step tower 11 becomes
Index alternation relation；Its speed change grade exponentially gradual change.
The product manufactured by the embodiment of embodiment six, when carrying out speed change, high gear
Speed regulation is fast, and low gear torque adjusting is fine, can realize speed range of accommodation big, dynamics
Control fine effect；Whole sprocket wheel is weighed as 103g, more long-time test run after having assembled,
Loading moment of torsion 100N*m to 200N*m, repeatedly speed change rapidly and smoothes out, and continuously runs 8000km
Without exception；The sprocket wheel that this embodiment manufactures, its structural strength and rigidity all can keep preferable level,
Its quality alleviates about 60% compared with the sprocket wheel of traditional structure.
Claims (8)
1. a ultralight big rigidity chain of speed-changing bicycle structure, including type conical bench column foot (1), sprocket (2) and spline structure (3)；It is characterized in that: type conical bench column foot (1) comprises multiple step tower (11), the step tower (11) of radius alternation is sequentially connected formation type conical bench column foot (1), the radial direction side of each step tower (11) is distributed annular sprocket (2), and least radius step tower (11) inner side of type conical bench column foot (1) is provided with spline (3).
Ultralight big rigidity chain of speed-changing bicycle structure the most according to claim 1, it is characterized in that: described type conical bench column foot (1) and sprocket (2) are overall structure, use the method manufacture of machine-building, can well ensure structural strength and the rigidity of sprocket wheel.
Ultralight big rigidity chain of speed-changing bicycle structure the most according to claim 1 and 2, it is characterised in that: described each step tower (11) is evenly distributed with hollow hole (12).
Ultralight big rigidity chain of speed-changing bicycle structure the most according to claim 3, it is characterised in that: the number of plies of the step tower (11) of described type conical bench column foot (1) is 3 layers to 11 layers.
Ultralight big rigidity chain of speed-changing bicycle structure the most according to claim 4, it is characterised in that: the axial spacing of described each step tower (11) all can be identical, it is possible to different, within spacing excursion about ± 10%.
Ultralight big rigidity chain of speed-changing bicycle structure the most according to claim 4, it is characterized in that: the radial spacing of described each step tower (11) can be identical, can also be different, the linear alternation of step sprocket 2 annular radius or index alternation relation.
Ultralight big rigidity chain of speed-changing bicycle structure the most according to claim 4, it is characterised in that: described type conical bench column foot (1) and sprocket (2) are for using titanium alloy, aluminium alloy or steel alloy material.
Ultralight big rigidity chain of speed-changing bicycle structure the most according to claim 4, it is characterized in that: maximum radius step tower (11) of described type conical bench column foot (1) axially external for monolithic tooth (4), the axially external limit of maximum radius step tower (11) of type conical bench column foot (1) is evenly distributed with double wedge (5), for carrying out assembly connection with monolithic tooth (4), type conical bench column foot inner radius (1) is connected with the inner radius of monolithic tooth (2) support tube (6).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464479.9A CN105882874A (en) | 2015-07-22 | 2015-07-22 | Chain wheel structure of ultralight large-stiffness variable speed bicycle |
| CN201620432238.6U CN205652282U (en) | 2015-07-22 | 2016-05-14 | Big rigidity speed -changing bicycle sprocket structure of ultralight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464479.9A CN105882874A (en) | 2015-07-22 | 2015-07-22 | Chain wheel structure of ultralight large-stiffness variable speed bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105882874A true CN105882874A (en) | 2016-08-24 |
Family
ID=57002105
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510464479.9A Pending CN105882874A (en) | 2015-07-22 | 2015-07-22 | Chain wheel structure of ultralight large-stiffness variable speed bicycle |
| CN201620432238.6U Active CN205652282U (en) | 2015-07-22 | 2016-05-14 | Big rigidity speed -changing bicycle sprocket structure of ultralight |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620432238.6U Active CN205652282U (en) | 2015-07-22 | 2016-05-14 | Big rigidity speed -changing bicycle sprocket structure of ultralight |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105882874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878665A (en) * | 2017-11-22 | 2018-04-06 | 湖南耐特材料科技有限公司 | A kind of disc and the rigidly connected speed variable chain wheel structure of cylinder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201700115407A1 (en) * | 2017-10-13 | 2019-04-13 | Campagnolo Srl | Sprocket and bodice for mounting on a bicycle rear wheel hub |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193948Y (en) * | 1994-05-17 | 1995-04-05 | 上官卫军 | Integral variable-speed chain wheel |
| US20060063624A1 (en) * | 2004-09-20 | 2006-03-23 | Darrell Voss | Transmission systems and methods |
| CN101513917A (en) * | 2008-02-23 | 2009-08-26 | Sram德国有限公司 | Weight-optimised multiple-chain gear wheel for a bicycle |
| CN101683885A (en) * | 2008-09-22 | 2010-03-31 | Sram德国有限公司 | Multiple bevel assembly with hollow bodies |
| US20120196711A1 (en) * | 2011-01-28 | 2012-08-02 | Shimano (Singapore) Pte. Ltd. | Bicycle sprocket assembly |
| CN102874372A (en) * | 2011-07-13 | 2013-01-16 | Sram德国有限公司 | Transmission shaft sleeve, combined chain wheel mechanism, joint and back wheel shaft assembly |
-
2015
- 2015-07-22 CN CN201510464479.9A patent/CN105882874A/en active Pending
-
2016
- 2016-05-14 CN CN201620432238.6U patent/CN205652282U/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193948Y (en) * | 1994-05-17 | 1995-04-05 | 上官卫军 | Integral variable-speed chain wheel |
| US20060063624A1 (en) * | 2004-09-20 | 2006-03-23 | Darrell Voss | Transmission systems and methods |
| CN101513917A (en) * | 2008-02-23 | 2009-08-26 | Sram德国有限公司 | Weight-optimised multiple-chain gear wheel for a bicycle |
| CN101683885A (en) * | 2008-09-22 | 2010-03-31 | Sram德国有限公司 | Multiple bevel assembly with hollow bodies |
| US20120196711A1 (en) * | 2011-01-28 | 2012-08-02 | Shimano (Singapore) Pte. Ltd. | Bicycle sprocket assembly |
| CN102874372A (en) * | 2011-07-13 | 2013-01-16 | Sram德国有限公司 | Transmission shaft sleeve, combined chain wheel mechanism, joint and back wheel shaft assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878665A (en) * | 2017-11-22 | 2018-04-06 | 湖南耐特材料科技有限公司 | A kind of disc and the rigidly connected speed variable chain wheel structure of cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205652282U (en) | 2016-10-19 |
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Application publication date: 20160824 |