CN101871496A - Special bearing flywheel for electric power-assisted bicycle - Google Patents
Special bearing flywheel for electric power-assisted bicycle Download PDFInfo
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- CN101871496A CN101871496A CN 201010192401 CN201010192401A CN101871496A CN 101871496 A CN101871496 A CN 101871496A CN 201010192401 CN201010192401 CN 201010192401 CN 201010192401 A CN201010192401 A CN 201010192401A CN 101871496 A CN101871496 A CN 101871496A
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- ratchet
- fuse
- electric power
- bearing
- assisted bicycle
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Abstract
The invention provides a special bearing flywheel for an electric power-assisted bicycle, which belongs to bicycle flywheels and is specially used for the electric power-assisted bicycle. The special bearing flywheel for the electric power-assisted bicycle comprises a case, a core, a pawl, a pawl spring and bearings, wherein the core is arranged in the case; a pawl nest is arranged in the middle of an outer wall of the core; a unidirectional ratchet is arranged in the middle of the inner wall of the case; the pawl is arranged in the pawl nest of the core and is clamped externally by using the pawl spring; and the pawl is matched with the ratchet for realizing a unidirectional function. The special bearing flywheel for the electric power-assisted bicycle is characterized in that the number of the bearings is two; the bearings are respectively arranged at the two ends of the case and the core; and the case and the core are connected by the bearings. The invention has the advantages of stable operation, low noise, good leak tightness, convenient assembly and stable service life.
Description
Technical field
The invention belongs to a kind of bicycle freewheel, it is exclusively used in electric booster bicycle.
Background technique
Existing electric assisted bicycle flywheel is made up of silk retaining, steel ball, packing ring, ratchet, ratchet spring, fuse, overcoat usually, the fuse outer wall is provided with the ratchet nest, ratchet is installed in the ratchet nest, block the ratchet center groove with C type spring, outer casing inner wall is provided with ratchet, ratchet cooperates with ratchet realizes one-way function, the afterbody trajectory of fuse contacts with trajectory in the overcoat by steel ball, the fuse top is by the trajectory assembling at silk retaining, steel ball and overcoat top, be provided with packing ring between the end face of silk retaining and the step of fuse, the silk retaining passes through scyewed joint with fuse.The fuse endoporus is provided with screw thread or spline, is used for connecting with the Moped Scooter output shaft, and the overcoat external form is sprocket type or the disc wheel type that is provided with attachment hole, directly connects or adds the chain flange with chain and connect.There is following defective in this structure: 1, owing to the reasons such as surface roughness, R shape, positional error and heat treatment deformation of overcoat, fuse trajectory cutting, cause and produce different sound in the motion; 2, reasons such as design of the peculiar structure electric wheel hub of electric assisted bicycle and motor speed-raising cause flywheel galloping, noise big; 3, owing to gap between flywheel fuse and the overcoat is bigger, use back sand and dust immerse the flywheel trajectory and produce unusual, stuck, the detent function inefficacy of turning round.The applicant's patent application formerly 200910032703.1 discloses a kind of special flywheel structure of electric booster bicycle, though the disclosed technological scheme of this application can solve above-mentioned subproblem, but still have following defective to overcome: 1, owing to its structural reason, make production and processing and assembly process complexity, and have only an end that bearing seal is arranged, the other end is close with original structure, and problem 3 described reasons are improved at all; 2, to manufacture into smoothness of operation not good for single shaft; 3, need the dress axle to use and the hole check ring, product parts is many, the assembly process complexity, and efficient is lower, and is economical and practical inadequately.
Summary of the invention
The objective of the invention is to overcome existing, provide that a kind of running is steady, noise is low with the deficiency of flywheel product with patent application 200910032703.1, good airproof performance, easy to assembly, the special bearing flywheel for electric power-assisted bicycle that working life is stable.
Technical solution of the present invention is: special bearing flywheel for electric power-assisted bicycle, and it comprises overcoat, fuse, ratchet, ratchet spring, bearing; Fuse is arranged in the overcoat; Fuse outer wall middle part is provided with the ratchet nest, and the outer casing inner wall middle part is provided with unidirectional ratchet, and ratchet is installed in the ratchet nest of fuse, and the external application ratchet spring blocks, and ratchet cooperates with ratchet realizes one-way function; It is characterized in that: bearing has two, is separately positioned on the two ends of overcoat and fuse, and overcoat and fuse connect by bearing.
The external diameter of described bearing cooperates assembling with the overcoat endoporus, and brearing bore cooperates assembling with fuse, and bearing is by overcoat endoporus step, fuse outer wall step axially locating.
Pass through riveted fixing between described bearing and the fuse.
Described bearing is the deep groove ball bearing of band seal ring.
Described ratchet adopts alloy steel material to make heat treatment hardness 75-82HRA.
Described ratchet spring adopts C type spring.
Described overcoat external form is sprocket type or the disc wheel type that is provided with attachment hole.
Described fuse endoporus is screw thread or spline or of bonding.
The present invention has following advantage: 1, bearing be fixed as inner ring axial end riveted fixing, reduce axle with and the hole with parts such as end rings, make to be easy to assembling, quality is easy to guarantee that product cost reduces; 2, part does not have the trajectory that car needs turning, reduce the part processing difficulty, 3, adopt pair of bearings to support the Case of fly-wheel two ends respectively, ratchet and ratchet engagement mechanism are between the two bearings, make stress steady, guaranteed stationarity and the low noise performance requirement of electric assisted bicycle in running up; 4, ratchet spring adopts C type spring, and C type spring is crossed the ratchet center, blocks ratchet, makes flywheel be difficult for losing efficacy; 5, the two ends deep groove ball bearing that is the band seal ring makes flywheel prevent effectively that comprehensively sand and dust from immersing, can the different sound of product in the operation process, flywheel fails phenomenon such as stuck.
Description of drawings
Fig. 1 is a cut-away view of the present invention.
Fig. 2 is the partial cutaway diagrammatic sketch of the embodiment of the invention one.
Fig. 3 is the partial cutaway diagrammatic sketch of the embodiment of the invention two.
Among the figure: 1, overcoat, 2, the deep groove ball bearing of band seal ring, 3, C type ratchet spring, 4, fuse, 5, ratchet.
Below in conjunction with accompanying drawing the present invention is elaborated.
Embodiment
Embodiment one
Special bearing flywheel for electric power-assisted bicycle, it is made up of the deep groove ball bearing 2 of overcoat 1, fuse 4, ratchet 5, C type ratchet spring 3 and two band seal rings.Fuse 4 is arranged in the overcoat 1; Fuse 4 outer walls middle part is provided with the ratchet nest, and overcoat 1 inwall middle part is provided with unidirectional ratchet, and ratchet 5 is installed in the ratchet nest of fuse 4, external application C type ratchet spring 3 blocks, ratchet 5 cooperates with ratchet realizes one-way function, and ratchet 5 adopts alloy steel material to make heat treatment hardness 75-82HRA.The external diameter of the deep groove ball bearing 2 of band seal ring cooperates assembling with the overcoat endoporus, and deep groove ball bearing 2 endoporus of band seal ring cooperate assembling with fuse 4, and the deep groove ball bearing 2 of band seal ring is by overcoat 1 endoporus step, fuse 4 outer wall step axially locating.Pass through riveted fixing between the deep groove ball bearing 2 of band seal ring and the fuse 4.Overcoat 1 external form is a sprocket type, and fuse 4 endoporus are spline.
Embodiment two
Special bearing flywheel for electric power-assisted bicycle, it is made up of the deep groove ball bearing 2 of overcoat 1, fuse 4, ratchet 5, C type ratchet spring 3 and two band seal rings.Fuse 4 is arranged in the overcoat 1; Fuse 4 outer walls middle part is provided with the ratchet nest, and overcoat 1 inwall middle part is provided with unidirectional ratchet, and ratchet 5 is installed in the ratchet nest of fuse 4, external application C type ratchet spring 3 blocks, ratchet 5 cooperates with ratchet realizes one-way function, and ratchet 5 adopts alloy steel material to make heat treatment hardness 75-82HRA.The external diameter of the deep groove ball bearing 2 of band seal ring cooperates assembling with the overcoat endoporus, and deep groove ball bearing 2 endoporus of band seal ring cooperate assembling with fuse 4, and the deep groove ball bearing 2 of band seal ring is by overcoat 1 endoporus step, fuse 4 outer wall step axially locating.Pass through riveted fixing between the deep groove ball bearing 2 of band seal ring and the fuse 4.Overcoat 1 external form is the disc wheel type that is provided with attachment hole, and the fuse endoporus is a tapped hole.
Claims (8)
1. special bearing flywheel for electric power-assisted bicycle, it comprises overcoat, fuse, ratchet, ratchet spring, bearing; Fuse is arranged in the overcoat; Fuse outer wall middle part is provided with the ratchet nest, and the outer casing inner wall middle part is provided with unidirectional ratchet, and ratchet is installed in the ratchet nest of fuse, and the external application ratchet spring blocks, and ratchet cooperates with ratchet realizes one-way function; It is characterized in that: bearing has two, is separately positioned on the two ends of overcoat and fuse, and overcoat and fuse connect by bearing.
2. according to the described special bearing flywheel for electric power-assisted bicycle of claim 1, it is characterized in that: the external diameter of described bearing cooperates assembling with the overcoat endoporus, and brearing bore cooperates assembling with fuse, and bearing is by overcoat endoporus step, fuse outer wall step axially locating.
3. according to the described special bearing flywheel for electric power-assisted bicycle of claim 1, it is characterized in that: described bearing is the deep groove ball bearing of band seal ring.
4. according to the described special bearing flywheel for electric power-assisted bicycle of claim 1, it is characterized in that: described ratchet adopts alloy steel material to make heat treatment hardness 75-82HRA.
5. according to the described special bearing flywheel for electric power-assisted bicycle of claim 1, it is characterized in that: described ratchet spring adopts C type spring.
6. according to the described special bearing flywheel for electric power-assisted bicycle of claim 1, it is characterized in that: described overcoat external form is sprocket type or the disc wheel type that is provided with attachment hole.
7. according to the described special bearing flywheel for electric power-assisted bicycle of claim 1, it is characterized in that: described fuse endoporus is screw thread or spline or of bonding.
8. according to the described special bearing flywheel for electric power-assisted bicycle of claim 2, it is characterized in that: pass through riveted fixing between described bearing and the fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192401 CN101871496A (en) | 2010-06-04 | 2010-06-04 | Special bearing flywheel for electric power-assisted bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192401 CN101871496A (en) | 2010-06-04 | 2010-06-04 | Special bearing flywheel for electric power-assisted bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101871496A true CN101871496A (en) | 2010-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010192401 Pending CN101871496A (en) | 2010-06-04 | 2010-06-04 | Special bearing flywheel for electric power-assisted bicycle |
Country Status (1)
| Country | Link |
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| CN (1) | CN101871496A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329418A (en) * | 2019-08-01 | 2019-10-15 | 慈溪康迪车业有限公司 | A kind of non-return ring type bicycle freewheel |
| CN112943821A (en) * | 2021-03-31 | 2021-06-11 | 贵州夜空星系科技有限公司 | Bicycle flywheel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2444085Y (en) * | 2000-09-08 | 2001-08-22 | 李玉宏 | Sliding device for motorcycle |
| CN2759925Y (en) * | 2004-12-08 | 2006-02-22 | 江苏森威集团有限责任公司 | Single-purpose flywheel for power-assist vehicle |
| CN1760563A (en) * | 2004-10-12 | 2006-04-19 | 何建军 | Ratchet type overrunning clutch |
| CN2931919Y (en) * | 2006-05-30 | 2007-08-08 | 邓烨 | Ratchet and ratchet pawl type overrunning clutch |
| CN201144978Y (en) * | 2008-01-25 | 2008-11-05 | 袁广云 | Fly wheel |
| CN101590896A (en) * | 2009-06-26 | 2009-12-02 | 江苏森威集团有限责任公司 | Special flywheel for electric assisted bicycle |
| CN201761620U (en) * | 2010-06-04 | 2011-03-16 | 江苏森威集团有限责任公司 | Special bearing flywheel for electric power assisting bicycle |
-
2010
- 2010-06-04 CN CN 201010192401 patent/CN101871496A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2444085Y (en) * | 2000-09-08 | 2001-08-22 | 李玉宏 | Sliding device for motorcycle |
| CN1760563A (en) * | 2004-10-12 | 2006-04-19 | 何建军 | Ratchet type overrunning clutch |
| CN2759925Y (en) * | 2004-12-08 | 2006-02-22 | 江苏森威集团有限责任公司 | Single-purpose flywheel for power-assist vehicle |
| CN2931919Y (en) * | 2006-05-30 | 2007-08-08 | 邓烨 | Ratchet and ratchet pawl type overrunning clutch |
| CN201144978Y (en) * | 2008-01-25 | 2008-11-05 | 袁广云 | Fly wheel |
| CN101590896A (en) * | 2009-06-26 | 2009-12-02 | 江苏森威集团有限责任公司 | Special flywheel for electric assisted bicycle |
| CN201761620U (en) * | 2010-06-04 | 2011-03-16 | 江苏森威集团有限责任公司 | Special bearing flywheel for electric power assisting bicycle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329418A (en) * | 2019-08-01 | 2019-10-15 | 慈溪康迪车业有限公司 | A kind of non-return ring type bicycle freewheel |
| CN112943821A (en) * | 2021-03-31 | 2021-06-11 | 贵州夜空星系科技有限公司 | Bicycle flywheel |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101027 |