CN207725565U - A kind of disc and the rigidly connected speed variable chain wheel structure of cylinder - Google Patents
A kind of disc and the rigidly connected speed variable chain wheel structure of cylinder Download PDFInfo
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- CN207725565U CN207725565U CN201721572527.7U CN201721572527U CN207725565U CN 207725565 U CN207725565 U CN 207725565U CN 201721572527 U CN201721572527 U CN 201721572527U CN 207725565 U CN207725565 U CN 207725565U
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- disc
- cylinder
- chain wheel
- speed variable
- variable chain
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Abstract
The utility model discloses a kind of disc as sports bicycle and the rigidly connected speed variable chain wheel structure of cylinder comprising：Two disc of adjacent different-diameter, set on the gear ring of disc outer circle.Two disc connect into rigid one by an annular barrel, and the disc is circumferentially-spaced equipped with disc lightening hole along its, and the cylinder is circumferentially-spaced equipped with cylinder lightening hole along its.The utility model avoids unfavorable force structure of the connecting elements between two disc at " cantilever beam ", so that there is sprocket wheel very high intensity and rigidity, first mate's degree of rigidity to improve to further ensure the accuracy of speed variable chain wheel transmission.
Description
Technical field
The utility model is related to a kind of bicycle gear components, more particularly to a kind of light-weight, specific stiffness and specific strength
Very high sports bicycle speed-changing chain.
Background technology
With the development of the society, requirement of the various vehicles for lightweight, high intensity now is higher and higher.At present certainly
Driving is typically to carry out loss of weight with structure lightened by material lightweight, and lightweight is that have enough with intensity and rigidity
Guarantee premised on, for sports bicycle, have higher want to intensity and the rigidity of speed-changing chain
It asks.And speed-changing chain is one of most important parts in bicycle, basic performance requirement is the situation certain in quality
Under, the higher the better with rigidity for intensity, i.e., the higher the better with specific stiffness for specific strength.
The speed-changing chain of bicycle is the gear ring structure wheel group disposed in parallel of multilayer different-diameter, and usually there are two types of typical
Structure type, one is punching press gear rings by riveting the speed-changing chain to be formed that is stacked（Using SHIMANO as representative）, another
Kind is a kind of taper（Or turriform）Hollow body does the parallel integral type set on its outer circle of gear ring of the multilayer different-diameter of supporter
Sprocket wheel（Using SRAM as representative）.It is more that former product punching press gear ring, which is stacked by riveting and to form the product of speed-changing chain,
Number, often rigidity is smaller with intensity, and bearing capacity is weaker, and heavier mass, thus its specific strength and specific stiffness are smaller, even if
The specific stiffness of the M9000 series of products of the SHIMANO of support construction is done using carbon fiber also than relatively limited, quality also 350g with
On, appearance usually seems that comparison is heavy.But processing technology is good；Latter is taper（Or turriform）Hollow body structure, and it is logical
It is often to be process by a block of material, thus there is higher intensity and rigidity, but in this existing structure design, arbitrary two
There is rod-shaped bridge part between adjacent gear ring, which is substantially the cantilever beam structure that a rod-shaped rib is constituted.
Such as with the patent of SRAM Corp.（ZL 200910004713.4）Based on a kind of conulite integral type sprocket wheel for constituting, this
Sprocket wheel realize Multilayer-tooth be integrally machined or remaining multi-turn tooth be integrally machined again with most great circle tooth assemble, thus obtain compared with
Punching press gear ring is especially obtained lighter by riveting the be stacked better specific strength of the speed-changing chain to be formed and specific stiffness
Gross mass, and the visual effect with hollow out, appearance are beautiful.But the structure is there are its structural strength is high not enough, rigidity
Than relatively limited, for relatively professional movement driver, specific strength need to be improved with specific stiffness, the reason is that the structure is in order to obtain
Lighter quality is obtained, each layer gear ring is to be referred to as being attached in 90 degree of bending rod component for bridge part by a kind of,
And the L-shaped arm of shape of the bridge part, mainly antitorque when in use, which is actually one outstanding on mechanics
Arm, and its antitorque section of modulus is very low, thus rigidity is poor, is not suitable for working under heavy loading.In addition, its rigidity is not enough gone back simultaneously
It can influence the ride comfort of its speed change.This structure more highlights loss of weight and ignores intensity and rigidity, thus its intensity with
Rigidity affects its specific strength and specific stiffness, also needs to further enhance under many application scenarios than relatively limited.
Therefore, how the light-weight, intensity of one kind is provided and rigidity is high, meets the bicycle of sports bicycle big load operation
It is industry urgent problem to be solved with speed-changing chain.
Utility model content
The utility model is not high with rigidity for the intensity for solving existing bicycle variable speed chain wheel, is not met by movement certainly
The technical issues of big load of driving a vehicle operation, proposes that the light-weight, intensity of one kind and rigidity are high, meets the operation of sports bicycle big load
Bicycle use disc and the rigidly connected speed variable chain wheel structure of cylinder.
The utility model proposes a kind of disc and the rigidly connected speed variable chain wheel structure of cylinder comprising：Adjacent difference
Two disc of diameter, set on the gear ring of disc outer circle.Two disc connect into rigid one, institute by an annular barrel
It is circumferentially-spaced equipped with disc lightening hole along its to state disc, the cylinder is circumferentially-spaced equipped with cylinder lightening hole along its.
Preferably, the cylinder is cylinder or frustum of a cone cylinder.
Preferably, the axial width of the cylinder lightening hole is less than the width between two disc.
Preferably, the lower edge of the disc is equipped with ring stiffener.
Preferably, the lower edge of the disc is equipped with lightening recesses.
Preferably, the disc lightening hole and cylinder lightening hole are the hole of diameter not etc., the pitch-row of two adjacent holes it is identical or
It differs.
Preferably, the disc lightening hole and cylinder lightening hole are at least one of circular hole, rectangular opening, kidney slot, various
Shape, the arbitrary assembled arrangement of lightening hole of size.
Preferably, the wall thickness of the disc and cylinder is 0.5 ~ 2.5mm.
Preferably, the inner surface of the gear ring is staggered distance as 0.1 ~ 1mm with the inner surface of its disc.
Preferably, the disc, gear ring and cylinder muscle are integrally machined.
The disc and cylinder of the utility model substantially remain its integral ring-shaped plate or annular canister after holding lightening hole successfully
Structure, hole between lightening hole and cylinder is respectively independent, without unicom；And the cylinder muscle between cylinder lightening hole with it is smaller
The disc of gear ring is random connection, does not need the center connection of the face gear teeth；In addition the axial width of cylinder lightening hole is less than two
Width between disc maintains the globality of cylinder substantially, avoids the connecting elements between two disc at " cantilever beam " no
The force structure of profit, so that chain sprocket structure has very high intensity and rigidity, so that bearing capacity is stronger, the first mate of rigidity
Degree improves to further ensure the smoothness of speed variable chain wheel transmission.Ensureing that there is very high specific strength and specific stiffness situation
Under, the reasonable layout of lightening hole and lightening recesses and open up can so that speed-changing chain with lighter quality, all lightening holes
Miriness when being with conducive to discharge sprocket wheel work with lightening recesses.Disc, cylinder and gear ring constitute an entirety, and by same
Block integral material is process automatically, so that speed-changing chain good rigidity, form and dimensional precision is high, greatly facilitates movement voluntarily
The use of vehicle.The utility model is simple in structure, and easy making process, cost is relatively low, easy to utilize.
Description of the drawings
Fig. 1 is the cut-away illustration of the utility model preferred embodiment；
Fig. 2 is speed-changing chain back side sectional perspective schematic diagram；
Fig. 3 is speed-changing chain front sectional perspective schematic diagram；
Fig. 4 is the speed-changing chain back side sectional perspective schematic diagram of another structure；
Wherein, 1-- disc, 2-- cylinders, 3-- disc lightening hole, 4-- gear rings（Sprocket）, 5-- cylinders lightening hole, M-- spokes
Plate and sprocket are staggered distance, 6-- muscle, 7-ring stiffeners, 8-- lightening recesses.
Specific implementation mode
The utility model is described in detail in conjunction with the embodiments below against attached drawing.
It is the configuration shows of the utility model preferred embodiment as shown in Fig. 1 ~ Fig. 3, the disc rigidly connects with cylinder muscle
The speed variable chain wheel structure connect, including：Two disc 1 of small one and large one adjacent different-diameter, set on the gear ring of the disc outer circle
4.Adjacent two disc 1 connects into rigid one by annular barrel 2, and disc 1 circumferentially-spaced subtracts along its equipped with disc
Repeated hole 3.Cylinder 2 along its it is circumferentially-spaced be equipped with cylinder lightening hole 5, be cylinder muscle 6 between adjacent cylinder lightening hole 5.In the present embodiment,
Cylinder 2 can be cylinder, or circular cone stage body.The lower edge of disc 1 can be equipped with ring stiffener 7（See Fig. 1 institutes
Show）, to further strengthen the strength and stiffness of disc.The axial width a of cylinder lightening hole 5 is less than the width between two disc 1
B is spent, the basic integrality of cylinder 2 can be kept, to ensure that cylinder 2 connects the rigidity and intensity of two adjacent disc 1.As shown in figure 4,
The lower edge of disc 1 be equipped with lightening recesses 8, the groove can have it is variously-shaped, for example, arc-shaped or waveform etc..It is protecting
Under the premise of demonstrate,proving higher-strength and rigidity, lightening recesses 8 can be opened deeper along the radial direction of disc 1, further subtract to reach
The purpose of weight.In the present embodiment, the disc lightening hole 3,5 size of cylinder lightening hole can be equal or unequal hole,
The pitch-row of adjacent holes can be identical or differs.Lightening hole can be all kinds of holes, for example, at least circular hole, rectangular opening, kidney-shaped
The one kind in hole.It, can be by variously-shaped, different size of lightening hole 3,5 according to the size of 1 component of disc or cylinder 2
Arbitrary assembled arrangement.The size of lightening hole or lightening recesses with distribution will be determined according to the size dimension of disc or cylinder, can
With uniformly can also Arbitrary distribution.Disc 1 be a sheet annular plate-like component, as needed, Thickness be 0.5 ~
The wall thickness of 2.5mm, cylinder 2 are 0.5 ~ 2.5mm.The inner surface of the inner surface disc 1 connected to it of gear ring 4 is staggered a distance
M, numerical value is 0.1 ~ 1mm, easy to process.Disc 1, gear ring 4 and the cylinder 2 is process by one piece of integral material.
Please refer to Fig.1 ~ Fig. 4, the parameter sprocket wheel of bicycle usually parallel is set by cylinder muscle by two adjacent small one and large one two
The disc 1 set is linked to be an entirety, and disc is alternately arranged with cylinder muscle and may make up multistage ladder-like turriform（Or taper）
The sprocket of whole Cylinder shape constructional element, transmission is diametrically disposed at turriform（Or taper）On whole Cylinder shape constructional element.The two of arbitrary neighborhood
A gear ring 4 can all connect and compose the adjacent two-stage gear ring of sprocket wheel by disc 1 and cylinder 2.The utility model is in order to further carry
The specific strength and specific stiffness of high integral type speed-changing chain improve traditional " cantilever beam " connection structure.This practicality is new
The disc of type is whole platy structure, does not have unicom between disc lightening hole 3 and cylinder lightening hole 5；And cylinder muscle 6 with it is smaller
The disc 1 of gear ring is random connection, does not need the center connection of the face gear teeth；In addition the axial width of cylinder lightening hole is less than two
Width between disc maintains the globality of cylinder substantially, avoids the connecting elements between two disc at " cantilever beam "
Unfavorable force structure, so that there is chain sprocket structure very high intensity and rigidity, first mate's degree of rigidity to improve to further
It ensure that the accuracy of speed variable chain wheel transmission.
Embodiment described above is primarily to illustrate the creating conception of the utility model, it is noted that for this
For the those of ordinary skill in field, without departing from the concept of the premise utility, several deformations can also be made and changed
Into these belong to the scope of protection of the utility model.
Claims (10)
1. a kind of disc and the rigidly connected speed variable chain wheel structure of cylinder, include two disc of adjacent different-diameter（1）, it is set to
The gear ring of disc outer circle（4）, which is characterized in that two disc（1）Pass through an annular barrel（2）Connect into rigid one
Body, the disc（1）It is circumferentially-spaced equipped with disc lightening hole along its（3）, the cylinder（2）Circumferentially-spaced subtract equipped with cylinder along its
Repeated hole（5）.
2. speed variable chain wheel structure as described in claim 1, which is characterized in that the cylinder（2）For cylinder or the frustum of a cone
Cylinder.
3. speed variable chain wheel structure as described in claim 1, which is characterized in that the cylinder lightening hole（5）Axial width it is small
Width between two disc.
4. speed variable chain wheel structure as described in claim 1, which is characterized in that the disc（1）Lower edge be equipped with annular plus
Strengthening tendons（7）.
5. speed variable chain wheel structure as described in claim 1, which is characterized in that the disc（1）Lower edge be equipped with loss of weight it is recessed
Slot（8）.
6. speed variable chain wheel structure as described in claim 1, which is characterized in that the disc lightening hole（3）Or cylinder loss of weight
Hole（5）For equal in magnitude or not etc. hole, the pitch-row of two adjacent holes is identical or differs.
7. speed variable chain wheel structure as described in claim 1, which is characterized in that the disc lightening hole（3）With cylinder loss of weight
Hole（5）At least one of circular hole, rectangular opening, kidney slot, variously-shaped, size the arbitrary assembled arrangement of lightening hole.
8. speed variable chain wheel structure as described in claim 1, which is characterized in that the disc（1）And cylinder（2）Thickness be
0.5~2.5mm。
9. speed variable chain wheel structure as described in claim 1, which is characterized in that the gear ring（4）Inner surface and its disc（1）
Inner surface be staggered 0.1 ~ 1mm of distance.
10. speed variable chain wheel structure as described in claim 1, which is characterized in that the disc（1）, gear ring（4）And cylinder
（2）It is integrally machined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721572527.7U CN207725565U (en) | 2017-11-22 | 2017-11-22 | A kind of disc and the rigidly connected speed variable chain wheel structure of cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721572527.7U CN207725565U (en) | 2017-11-22 | 2017-11-22 | A kind of disc and the rigidly connected speed variable chain wheel structure of cylinder |
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| Publication Number | Publication Date |
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| CN207725565U true CN207725565U (en) | 2018-08-14 |
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ID=63088377
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721572527.7U Active CN207725565U (en) | 2017-11-22 | 2017-11-22 | A kind of disc and the rigidly connected speed variable chain wheel structure of cylinder |
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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 |
-
2017
- 2017-11-22 CN CN201721572527.7U patent/CN207725565U/en active Active
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 |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190311 Address after: 410600 No. 138 Yaojiapo Road, Ningxiang High-tech Industrial Park, Changsha City, Hunan Province Patentee after: Hunan Shilu Technology Co.,Ltd. Address before: 410000 Ningxiang High-tech Industrial Park, Changsha City, Hunan Province, 068 Australia North Road Patentee before: HUNAN NAITE MATERIALS TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220822 Address after: 410000 No. 4, Yingxia Road, Changsha area, China (Hunan) pilot Free Trade Zone, Changsha City, Hunan Province Patentee after: Changsha Torch Changhang Auto Parts Co.,Ltd. Address before: 410600 No. 138 Yaojiapo Road, Ningxiang High-tech Industrial Park, Changsha City, Hunan Province Patentee before: Hunan Shilu Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230214 Address after: 410000 No. A209, Maker Block, Venture Building, University Science Park, No. 283, Middle Section of Xiaoxiang Avenue, Juzizhou Street, Yuelushan University Science and Technology City, Changsha City, Hunan Province Patentee after: Hunan Suao Technology Co.,Ltd. Address before: 410000 No. 4, Yingxia Road, Changsha area, China (Hunan) pilot Free Trade Zone, Changsha City, Hunan Province Patentee before: Changsha Torch Changhang Auto Parts Co.,Ltd. |
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| TR01 | Transfer of patent right |