CN108482572A - A kind of gear shift flywheel - Google Patents
A kind of gear shift flywheel Download PDFInfo
- Publication number
- CN108482572A CN108482572A CN201810498961.8A CN201810498961A CN108482572A CN 108482572 A CN108482572 A CN 108482572A CN 201810498961 A CN201810498961 A CN 201810498961A CN 108482572 A CN108482572 A CN 108482572A
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- China
- Prior art keywords
- ring
- gear ring
- gear
- hub
- diameter
- Prior art date
- 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.)
- Pending
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- 238000003466 welding Methods 0.000 claims description 6
- 230000004580 weight loss Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 210000000515 tooth Anatomy 0.000 description 21
- 230000000694 effects Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Abstract
The invention discloses a kind of gear shift flywheels, include cone pulley, wheel hub and the flower hub being overlapped to form by the gear ring that multilayer diameter is sequentially increased, cone pulley includes maximum first gear ring of diameter and the second gear ring of diameter minimum, cone pulley is connect with hub drive, flower hub is connect with hub drive, further includes connection ring and ring end cap;The internal diameter 2r of second gear ring is less than the outer diameter 2R of flower hub;One end of flower hub is detachably connected with connection ring;Ring end cap includes cylinder and lid, and cylinder is connect with connection ring, and lid is contacted with the second gear ring.A kind of gear shift flywheel of the present invention has the advantages that energy universal standard flower hub, at low cost and transmission velocity ratio are wide.
Description
Technical field
The present invention relates to a kind of bicycle shift component more particularly to a kind of gear shift flywheels.
Background technology
With the development of the society, cycling is favored by more and more people.Especially for multi-speed bicycle,
Ask the wider gear range the better to reach labour-saving effect to adapt to different environment.In the prior art, Multi-stage speed-changing flywheel is most
Small tooth is 11 teeth, and under conditions of maximum tooth is certain, minimum tooth, which often reduces by 1 its ratio coverage, will increase 10% or so, that is,
Small tooth is smaller, and bicyclist will obtain the transmission ratio of bigger, however the size of flower hub is normalized, for general colored hub,
The outer diameter of the splined section of flower hub is 2R, when the gear ring number of teeth is less than 11, i.e., can make the tooth root diameter of a circle of flywheel minimum tooth
2r is less than 2R, spends hub and cone pulley dimensional interference at this time and eventually leading to can not assemble.Using SRAM Corp. as several brands of representative
It is the product of 10 teeth that product, which has the gear ring number of teeth, and extremely individual even minimum tooths have been 9 teeth, is all by the way of customization flower hub
It is improved so that the cost of flywheel part increases.Therefore design it is a kind of can the universal standard flower hub, at low cost and transmission velocity ratio it is wide
Gear shift flywheel is necessary.
Invention content
Present invention seek to address that above-mentioned mentioned technical problem, provide it is a kind of can universal standard flower hub, at low cost and pass
The wide gear shift flywheel of speed ratio.
The present invention is realized by following technical solution:
A kind of gear shift flywheel includes cone pulley, wheel hub and the flower hub being overlapped to form by the gear ring that multilayer diameter is sequentially increased, tower
Wheel includes that maximum first gear ring of diameter and the second gear ring of diameter minimum, cone pulley are connect with hub drive, flower hub and wheel hub
It is sequentially connected, further includes connection ring and ring end cap;The internal diameter 2r of second gear ring is less than the outer diameter 2R of flower hub;Flower hub one end with
Connection ring is detachably connected;Ring end cap includes cylinder and lid, and cylinder is connect with connection ring, and lid and the second gear ring contradict.
Preferably, connection ring is connected through a screw thread with flower hub, the use of cylinder and connection ring be threadedly coupled, rivet, being clamped or
One kind of welding.
Preferably, cone pulley includes the third gear ring adjacent with the second gear ring, and third gear ring passes through bridge part and the second gear ring
Overlap joint;Bridge part include lateral disc and with disc overlapped cylinder, from cylinder and/or the second gear ring radially inside
Extend limiting section, the internal diameter of limiting section is smaller than the diameter of lid.
Preferably, connection ring, which deviates from the end face for spending hub, is provided with fastening part.
Preferably, ring end cap is provided with wrench portion 53.
Preferably, weight loss groove is arranged in wheel hub.
Preferably, flower hub is provided with axial limiting protrusion close to the position of the first gear ring.
Preferably, cone pulley includes fourth gear ring adjacent with the first gear ring, and the 4th gear ring is detachably connected with the first gear ring,
4th gear ring and the second gear ring integrally connected, the first gear ring and wheel hub integrally connected.
Preferably, the first gear ring is provided with lightening hole.
Advantageous effect is:
Compared with prior art, a kind of gear shift flywheel of the invention is by designing connection ring and ring end cap, by connection ring
Connection flower hub and ring end cap, then ring end cap is contradicted on the second gear ring so that it is less than flower hub in the internal diameter 2r of the second gear ring
In the case of outer diameter 2R, flower hub can form axial limiting as normal configuration to cone pulley, reliably complete high-speed motion;Also because
The internal diameter 2r of this second gear ring can be less than the outer diameter 2R of flower hub, and minimum gear ring can reduce the number of teeth according to design accordingly, make
It can also increase ratio coverage while reducing cost with standard flower hub.
Description of the drawings
The specific implementation mode of the present invention is described in further detail below in conjunction with attached drawing, wherein:
Fig. 1 is a kind of gear shift flywheel first half structural schematic diagram of the present invention;
Fig. 2 is a kind of gear shift flywheel partial structure embodiment of the present invention;
Fig. 3 is connection ring and ring end cap connection structure embodiment;
Fig. 4 is the end view of component connection ring of the present invention.
Specific implementation mode
As shown in Figure 1, a kind of gear shift flywheel, includes cone pulley 1, the wheel hub being overlapped to form by the gear ring that multilayer diameter is sequentially increased
2, flower hub 3, connection ring 4 and ring end cap 5, cone pulley 1 include maximum first gear ring 11 of diameter and the second tooth of diameter minimum
Circle 12, cone pulley 1 is sequentially connected with wheel hub 2, such as can connect at the both ends of wheel hub 2 with the first gear ring 11 and the second gear ring 12 respectively
It connects to form firm three-legged structure so that flywheel stabilization is good, intensity is high.Flower hub 3 connect the circumferential biography of formation with wheel hub 2
It is dynamic, for example, by using key connection, stable transmission simple in structure;The internal diameter 2r of second gear ring 12 is smaller than the outer diameter 2R of colored hub 3, convenient
Number of teeth design, which is broken through 11 existing teeth, according to the diameter of the second gear ring 12 in design becomes 10 teeth or 9 teeth even 8 teeth, with
Just under the premise of the energy universal standard spends hub, wider speed ratio is obtained by small tooth, few number of teeth so that movement is more laborsaving, and
Overall cost can also be reduced using standard flower hub;Flower hub 3 is detachably connected close to one end of the second gear ring 12 with connection ring 4, even
The mode of connecing can be clamping, riveting or the one kind being threadedly coupled, and be preferably threadedly coupled and safeguarded with being convenient for changing, it shall be noted that
It is that rotation direction of thread should avoid loosening with transmission direction phase in design;The other end of flower hub 3 can be contradicted with cone pulley 1 from
And left side axial limiting is formed, for example can be prevented in flower hub 3 close to the position of the first gear ring 11 setting axial limiting protrusion 31
Into figure, left direction deviates cone pulley 1 in an axial direction;Ring end cap 5 includes cylinder 51 and lid 52, and cylinder 51 connects with connection ring 4
It connects, is contradicted by lid 52 and the second gear ring 12, right side axial limiting can be formed, prevent the right side into figure in an axial direction of cone pulley 1
Direction deviates.As a result, in the case where 1 left and right sides of cone pulley has axial limiting so that cone pulley 1, wheel hub 2 and flower hub 3 are successively
It completes rotation to transmit, stable realization flywheel motor function.
Preferable embodiment, as depicted in figs. 1 and 2, connection ring 4 are provided with external screw thread, and flower hub 3 is provided with matching
Internal thread, it should be noted that internal thread and external screw thread can be replaced, such as in fig. 2, in connection ring 4 is provided with
Screw thread, and hub 3 is spent to be provided with matching external screw thread.Similarly cylinder 51 can also be used with connection ring 4 and is threadedly coupled, and
Internal thread can be mutually converted with externally threaded setting;Certainly, cylinder 51 can also use riveting, clamping with connection ring 4
Or one kind of welding, as long as so that cylinder 51 is sequentially connected with connection ring 4.Spot welding or Laser Welding may be used in welding,
When for laser welding, as shown in figure 3, it is that laser injects direction that A, which injects direction, Laser Welding has fever small, efficient, secured
The advantages that, cylinder 51 can be made securely to connect the torsion transmission for bearing bigger with connection ring 4 in the case where ensureing with one heart.
Preferable embodiment, cone pulley 1 as depicted in figs. 1 and 2 include the third gear ring 13 adjacent with the second gear ring 12, and
Three gear rings 13 are overlapped by bridge part 6 and the second gear ring 12;Bridge part 6 includes the disc 61 of transverse direction and overlapped with disc 61
Cylinder 62 radially extends limiting section 12a inside from cylinder 62 and/or the second gear ring 12, and the internal diameter of limiting section 12a is than lid
The diameter of body 52 is small, and the effect of limiting section 12a is to hold up lid 52, and lid 52 is facilitated to apply axial limitation to cone pulley 1.Certainly,
If also possible without limiting section 12a, lid 52 directly overlays on the flank of tooth of the second gear ring 12, can also reach identical
Restriction effect.
Preferable embodiment, as shown in Figure 1 and Figure 4, connection ring 4, which deviates from the end face for spending hub 3, is provided with fastening part 41.
Fastening part 41 can be hole or protrusion, and positioning crawl is carried out when convenient for assembly, to screw connection ring 4 and flower hub 3.
Preferable embodiment is provided with wrench portion 53 on ring end cap 5.As shown in Figure 1, wrench portion 53 can be provided in
The pit with specific shape of 51 inside of lid 52 and/or cylinder, relatively conventional is Hexagon hole or square hole;Such as Fig. 2
Shown, wrench portion 53 can also be the positioning region from lid 52 toward outside protrusion;The effect of wrench portion 53 be facilitate ring end cap 5 with
The connection of connection ring 4 fastens.
Preferable embodiment mitigates quality as shown in Figure 1, weight loss groove 21 is arranged in wheel hub 2.
Preferable embodiment, as shown in Figure 1, the first gear ring 11 is provided with lightening hole 11a, flywheel is not influencing rigidity
In the case of, lightening hole 11a can effectively mitigate whole quality so that movement is more laborsaving.
Preferable embodiment, cone pulley 1 include fourth gear ring 14 adjacent with the first gear ring 11, the 4th gear ring 14 and first
Gear ring 11 is detachably connected, 12 integrally connected of the 4th gear ring 14 and the second gear ring, the first gear ring 11 and 2 integrally connected of wheel hub.Such as
Shown in Fig. 1,1 common stress of cone pulley is also easy to during the motion other than the torsional moment along gear ring radial direction by voluntarily
Car body is to the extruding force in the directions F1-f1 of cone pulley 1 or the drawing force of F2-f2;It all designs just like axial limit at existing flywheel both ends
The raised 31 similar structures in position prevent from moving left and right, therefore can be effective against the drawing force of F2-f2, and lead in the design structure
It crosses lid 42 and the raised 31 pairs of cone pulleys 1 of axial limiting carries out left and right limit and can also be effective against the drawing force of F2-f2, but is existing
Have that structure is poor for the extruding force repellence in the directions F1-f1, and by the first gear ring 11 and 2 integrally connected of wheel hub, and take turns
Hub 2 contradicts on bridge part 6 so that the extruding force from the directions F1-f1 is supported by wheel hub 2, the not anti-extrusion of cone pulley 1
The drawbacks of be well solved.
The above embodiments are merely illustrative of the technical solutions of the present invention and is not intended to limit it, all without departing from the present invention
Any modification of spirit and scope or equivalent replacement, shall fall within the scope of the technical solution of the present invention.
Claims (9)
1. a kind of gear shift flywheel includes cone pulley (1), wheel hub (2) and the flower being overlapped to form by the gear ring that multilayer diameter is sequentially increased
Hub (3), the cone pulley (1) include the second gear ring (12) of maximum first gear ring (11) of diameter and diameter minimum, the tower
It takes turns (1) to be sequentially connected with the wheel hub (2), the colored hub (3) is sequentially connected with the wheel hub (2), it is characterised in that:
Further include connection ring (4) and ring end cap (5);
The internal diameter 2r of second gear ring (12) is less than the outer diameter 2R of the colored hub (3);
One end of the colored hub (3) is detachably connected with the connection ring (4);
The ring end cap (5) includes cylinder (51) and lid (52), and the cylinder (51) connect with the connection ring (4), institute
Lid (52) is stated to contradict with second gear ring (12).
2. gear shift flywheel according to claim 1, it is characterised in that:The connection ring (4) passes through spiral shell with the colored hub (3)
Line connects, and the cylinder (51) is with the connection ring (4) using the one kind for being threadedly coupled, rivet, being clamped or welding.
3. gear shift flywheel according to claim 1 or 2, it is characterised in that:The cone pulley (1) includes and second gear ring
(12) adjacent third gear ring (13), the third gear ring (13) are overlapped by bridge part (6) and second gear ring (12);Institute
State bridge part (6) include lateral disc (61) and with the disc (61) overlapped cylinder (62), from the cylinder (62)
And/or radially extending limiting section (12a) on second gear ring (12) inside, the internal diameter of the limiting section (12a) compares institute
The diameter for stating lid (52) is small.
4. gear shift flywheel according to claim 1 or 2, it is characterised in that:The connection ring (4) deviates from the colored hub (3)
End face on be provided with fastening part (41).
5. gear shift flywheel according to claim 1 or 2, it is characterised in that:The ring end cap (5) is provided with wrench portion 53.
6. gear shift flywheel according to claim 1 or 2, it is characterised in that:The wheel hub (2) is provided with weight loss groove (21).
7. gear shift flywheel according to claim 1 or 2, it is characterised in that:The colored hub (3) is close to first gear ring
(11) it is raised (31) that position is provided with axial limiting.
8. gear shift flywheel according to claim 1 or 2, it is characterised in that:The cone pulley (1) includes and first gear ring
(11) the 4th adjacent gear ring (14), the 4th gear ring (14) are detachably connected with first gear ring (11), and the described 4th
Gear ring (14) and the second gear ring (12) integrally connected, first gear ring (11) and the wheel hub (2) integrally connected.
9. gear shift flywheel according to claim 1 or 2, it is characterised in that:First gear ring (11) is provided with lightening hole
(11a)。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810498961.8A CN108482572A (en) | 2018-05-23 | 2018-05-23 | A kind of gear shift flywheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810498961.8A CN108482572A (en) | 2018-05-23 | 2018-05-23 | A kind of gear shift flywheel |
Publications (1)
Publication Number | Publication Date |
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CN108482572A true CN108482572A (en) | 2018-09-04 |
Family
ID=63351968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810498961.8A Pending CN108482572A (en) | 2018-05-23 | 2018-05-23 | A kind of gear shift flywheel |
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CN (1) | CN108482572A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3808645A1 (en) * | 2019-10-17 | 2021-04-21 | Li, Yuan-Shun | Bicycle cassette with increased tooth ratio |
US20210131547A1 (en) * | 2019-11-06 | 2021-05-06 | Campagnolo S.R.L. | Sub-assembly sprocket-carrying body and cogset for a bicycle rear wheel, ring nut for fixing such a sub-assembly and method for fixing a cogset to a sprocket-carrying body |
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CN203740093U (en) * | 2014-01-10 | 2014-07-30 | 天心工业股份有限公司 | Rear sprocket disc set of bicycle |
CN105015695A (en) * | 2015-07-22 | 2015-11-04 | 郑英 | Light large-torque high-rigidity variable speed bicycle chain wheel assembly structure |
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TW201806822A (en) * | 2016-08-30 | 2018-03-01 | 羅特技術組件公司 | Bicycle rear sprocket assembly |
CN207225577U (en) * | 2017-09-01 | 2018-04-13 | 湖南耐特材料科技有限公司 | A kind of small tooth separation type bicycle speed-changing chain |
CN208470062U (en) * | 2018-05-23 | 2019-02-05 | 湖南耐特材料科技有限公司 | A kind of gear shift flywheel |
-
2018
- 2018-05-23 CN CN201810498961.8A patent/CN108482572A/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004045419A1 (en) * | 2004-09-18 | 2006-03-30 | Sram Deutschland Gmbh | Attaching sprocket cluster to freewheeling body of drive hub of bicycle, by holding together aligned sprocket wheels at periphery and axially attaching using securing screw |
CN101362503A (en) * | 2007-08-09 | 2009-02-11 | 坎培诺洛有限公司 | Assembly of toothed wheels for a bicycle |
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 |
CN102874373A (en) * | 2011-07-13 | 2013-01-16 | Sram德国有限公司 | Combined chain wheel mechanism, joint, transmission shaft sleeve and back wheel shaft assembly |
CN203740093U (en) * | 2014-01-10 | 2014-07-30 | 天心工业股份有限公司 | Rear sprocket disc set of bicycle |
CN106005232A (en) * | 2015-03-30 | 2016-10-12 | Sram德国有限公司 | Rear wheel sprocket arrangement |
CN105015695A (en) * | 2015-07-22 | 2015-11-04 | 郑英 | Light large-torque high-rigidity variable speed bicycle chain wheel assembly structure |
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TW201806822A (en) * | 2016-08-30 | 2018-03-01 | 羅特技術組件公司 | Bicycle rear sprocket assembly |
CN207225577U (en) * | 2017-09-01 | 2018-04-13 | 湖南耐特材料科技有限公司 | A kind of small tooth separation type bicycle speed-changing chain |
CN208470062U (en) * | 2018-05-23 | 2019-02-05 | 湖南耐特材料科技有限公司 | A kind of gear shift flywheel |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3808645A1 (en) * | 2019-10-17 | 2021-04-21 | Li, Yuan-Shun | Bicycle cassette with increased tooth ratio |
US20210131547A1 (en) * | 2019-11-06 | 2021-05-06 | Campagnolo S.R.L. | Sub-assembly sprocket-carrying body and cogset for a bicycle rear wheel, ring nut for fixing such a sub-assembly and method for fixing a cogset to a sprocket-carrying body |
EP3819201A1 (en) * | 2019-11-06 | 2021-05-12 | Campagnolo S.r.l. | Cogset-assembly for a bicycle rear wheel, ring nut for the assembly and method for fixing the cogset-assembly |
US11592097B2 (en) | 2019-11-06 | 2023-02-28 | Campagnolo S.R.L. | Sub-assembly sprocket-carrying body and cogset for a bicycle rear wheel, ring nut for fixing such a sub-assembly and method for fixing a cogset to a sprocket-carrying body |
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Application publication date: 20180904 |
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