CN204572915U - For the free wheel base of ratchet wheel hub - Google Patents
For the free wheel base of ratchet wheel hub Download PDFInfo
- Publication number
- CN204572915U CN204572915U CN201520239303.9U CN201520239303U CN204572915U CN 204572915 U CN204572915 U CN 204572915U CN 201520239303 U CN201520239303 U CN 201520239303U CN 204572915 U CN204572915 U CN 204572915U
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- CN
- China
- Prior art keywords
- actuator
- ratchet
- wheel hub
- ratchet wheel
- wheel base
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- 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.)
- Expired - Fee Related
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Abstract
For a free wheel base for ratchet wheel hub, comprise the chain wheel carrier of the actuator of a hollow, a hollow, and the lock firmware of a hollow.This actuator comprises a drive portion, and the other end and the non-circular embedding part of radial cross section being arranged at this drive portion on the contrary.This chain wheel carrier connects this actuator, and comprises this embedding part of socket and the radial cross section belled part of matching with this embedding part, and one to be extended radially inwardly by inner peripheral surface and to be adjacent to the block edge of this belled part.This lock firmware can removably be locked in this actuator, and comprises the head that is resisted against this block edge vertically, and a screw lock is in the body portion of the inner peripheral surface of this actuator.Manufactured for separating by this actuator and this chain wheel carrier, and this embedding part and this belled part are non-circular interlocking, and reach the object reducing material loss and high torsion.
Description
Technical field
The utility model relates to a kind of assembly of wheel hub, particularly relates to a kind of free wheel base for ratchet wheel hub.
Background technique
Consult Fig. 1, the outer pawl formula ratchet wheel hub of existing one, as TaiWan, China patent announcement number No. I252815 " outer pawl formula ratchet wheel hub " invention case, comprise clutch unit 20, that housing 10, that an axle 9, is sheathed on this axle 9 is revolvably arranged at this housing 10 inside and connect this clutch unit 20 and material is the actuator 30 of chrome-moly steel, and be spirally connected this actuator 30 and a material are the chain wheel carrier 40 of aluminum alloy.This creation is in order to meet modern to the light-weighted demand of bicycle, and with hardness, the lower and aluminum alloy of lighter in weight makes this chain wheel carrier 40.But, this chain wheel carrier 40 drives this actuator 30 to rotate as the screw thread by mutual snap-in promotes from axle, and the material that both use is different, so under long time running, the chain wheel carrier 40 of low hardness will inevitably produce abrasion, and the efficiency turned a wheel is not good, change colored hub so take often to eliminate, very uneconomical.
Consult Fig. 2, in response to the problems referred to above, develop again another kind of ratchet flower-drum, as TaiWan, China patent announcement number No. M315660 " wheel hub of bicycle " model utility case, this actuator 30 is changed into one-body molded with this chain wheel carrier 40, and be all made by chrome-moly steel, thus, just solve between this chain wheel carrier 40 and this actuator 30 because of high torsion abrasion problems that unlike material causes, but, this creation also cannot meet light-weighted design requirement, actuator 30 on the contrary because being integrated adopts chrome-moly steel to make with chain wheel carrier 40 and makes product weight heavier, and to be formed in one part because of this actuator 30 and this chain wheel carrier 40, one whole is unsuccessfully just needed to scrap once any one crucial assembly position processes, extremely waste raw material.
Summary of the invention
The purpose of this utility model is to provide a kind of reduction to process failed material loss rate and the free wheel base for ratchet wheel hub that can bear high torsion.
Free wheel base for ratchet wheel hub of the present utility model, comprises the chain wheel carrier of the actuator of a hollow, a hollow, and the lock firmware of a hollow.This actuator comprises a drive portion, and the other end and the non-circular embedding part of radial cross section being arranged at this drive portion on the contrary.This chain wheel carrier connects this actuator, and comprises this embedding part of socket and the radial cross section belled part of matching with this embedding part, and one to be extended radially inwardly by inner peripheral surface and to be adjacent to the block edge of this belled part.This lock firmware can removably be locked in this actuator, and comprises the head that is resisted against this block edge vertically, and a screw lock is in the body portion of the inner peripheral surface of this actuator.
Free wheel base for ratchet wheel hub of the present utility model, the material hardness of this chain wheel carrier is less than the material hardness of this actuator.
Free wheel base for ratchet wheel hub of the present utility model, the material hardness of this lock firmware is less than the material hardness of this actuator.
Free wheel base for ratchet wheel hub of the present utility model, this free wheel base being used for ratchet wheel hub also comprises a packing ring be arranged between this block edge and this head, and this head is by this packing ring and this block edge closely contact vertically.
Free wheel base for ratchet wheel hub of the present utility model, this embedding part is quincunx in what match respectively with the radial cross section of this belled part.
Free wheel base for ratchet wheel hub of the present utility model, this drive portion has multiple ratchet.
Free wheel base for ratchet wheel hub of the present utility model, this drive portion has multiple pawl partially moved by elasticity.
The beneficial effects of the utility model are: be separate two assemblies manufactured by this actuator and this chain wheel carrier, and the object reducing the failed material loss rate of processing can be reached, again by this chain wheel carrier and this actuator for be rabbeted by non-circular structure, and high torsion can be born.
Accompanying drawing explanation
Of the present utility model other feature and effect, clearly present in reference to graphic mode of execution, wherein:
Fig. 1 is a section plan, and the outer pawl formula ratchet wheel hub of existing one is described;
Fig. 2 is a section plan, and existing another kind of ratchet flower-drum is described;
Fig. 3 is a three-dimensional exploded view, illustrates that the utility model is arranged on an axle, a housing and a clutch unit for first preferred embodiment of the free wheel base of ratchet wheel hub;
Fig. 4 is a section plan of this first preferred embodiment, illustrates that this first preferred embodiment is arranged on this axle, this housing and this clutch unit;
Fig. 5 is a sectional view of V-V cutting line in Fig. 4, and what this clutch unit of this first preferred embodiment was described makes flowing mode; And
Fig. 6 is a section plan, illustrates that the utility model is arranged on an axle and a housing for second preferred embodiment of the free wheel base of ratchet wheel hub.
Embodiment
Before the utility model is described in detail, should be noted that in the following description content, similar assembly represents with identical numbering.
Consult Fig. 3, Fig. 4 and Fig. 5, the first preferred embodiment that the utility model is used for the free wheel base 3 of ratchet wheel hub is applicable to be arranged on an axle 1, housing 2, and on a clutch unit 4.
This axle 1 extends along an axis L.
This housing 2 can be sheathed on outside this axle 1 rotationally, and comprises multiple respectively by the containing groove 21 that inner peripheral surface is circumferentially recessed.
This clutch unit 4 comprises a ratchet ring 41, is multiplely engaged in this ratchet ring 41 respectively and is mounted on the pawl 42 in described containing groove 21 respectively, and to be multiplely mounted on respectively in described containing groove 21 and pawl 42 described in contact makes described pawl 42 permanent butted elastic component 43 on this ratchet ring 41 respectively respectively.This ratchet ring 41 has multiple respectively for the ratchet 411 that described pawl 42 engages.In the present embodiment, this clutch unit 4 is outer pawl formula.
This free wheel base 3 being used for ratchet wheel hub can be sheathed on outside this axle 1 rotationally, and comprises the lock firmware 33 of chain wheel carrier 32 a, hollow of actuator 31 a, hollow of a hollow, and a packing ring 34.
This actuator 31 comprises the drive portion 312 that this ratchet ring 41 of a confession is arranged, and the other end and the non-circular embedding part 311 of radial cross section being arranged at this drive portion 312 on the contrary.In the present embodiment, this drive portion 312 is formed in one with this ratchet ring 41 and has described ratchet 411, and material is chrome-moly steel, and the radial cross section of this embedding part 311 is quincunx.
This chain wheel carrier 32 connects this actuator 31, and material hardness is less than the material hardness of this actuator 31, and comprise this embedding part 311 of socket and the radial cross section belled part 321 of matching with this embedding part 311, and one to be extended radially inwardly by inner peripheral surface and to be adjacent to the block edge 322 of this belled part 321.In the present embodiment, the material of this chain wheel carrier 32 is aluminum alloy, and the radial cross section of this belled part 321 is quincunx in what match with this embedding part 311.
This lock firmware 33 removably can be locked in this actuator 31, and material hardness is less than the material hardness of this actuator 31, and comprises the head 331 that is resisted against this block edge 322 vertically, and a screw lock is in the body portion 332 of the inner peripheral surface of this actuator 31.In the present embodiment, the material of this lock firmware 33 is aluminum alloy.
This packing ring 34 is arranged between this block edge 322 and this head 331.This head 331 is by this packing ring 34 and this block edge 322 closely contact vertically.
Before explanation rotation process of the present utility model, be noted that in the direction of following explanation all using Fig. 5 as reference benchmark.The utility model is arranged on this axle 1, after this housing 2 and this clutch unit 4, can carry out rotating from axle relative to this axle 1 by this housing 2, this free wheel base 3 can carry out rotating from axle relative to this axle 1, and this free wheel base 3 connects the structural relation of this housing 2 by this clutch unit 4, when rider drives the chain wheel carrier 32 of this free wheel base 3 along clockwise direction, this ratchet ring 41 is also driven and synchronously rotates along clockwise direction, now, utilize the meshing relation of described pawl 42 and described ratchet 411, can rotate along clockwise direction by this housing 2 of interlock, and then drive cycle wheel to rotate.On the contrary, when rider drives the chain wheel carrier 32 of this free wheel base 3 in the counterclockwise direction, this ratchet ring 41 is also driven and synchronously rotates in the counterclockwise direction, now, described pawl 42 meeting escape on described ratchet 411 respectively, and utilize the elastic force of described elastic component 43 that described pawl 42 is once more engaged with described ratchet 411 respectively after escape, that is this housing 2 is motionless and this free wheel base 3 dallies in the counterclockwise direction.
Accountablely be, in composition assembly of the present utility model only this actuator 31 because of need with mutually contact and the friction for a long time of described pawl 42, so hardness need be adopted higher and the chrome-moly steel of heavier-weight makes to guarantee product working life, different assembly (this chain wheel carrier 32 and this lock firmware 33) all can adopt hardness less and the aluminum alloy of lighter in weight is made in addition, because the belled part 321 of this chain wheel carrier 32 by with this embedding part 311 the cooperatively interacting of non-circular radial cross section respectively, and the demand without the need to adopting the material of high hardness just can reach high torsion, this lock firmware 33 is because only for this chain wheel carrier 32 of interlocking and this actuator 31, there is no the demand of high strength, so also without the need to the material of high hardness.Thus, just light-weighted design requirement can fully be reached by above-mentioned.
Therefore, be separate two assemblies manufactured by this actuator 31 and this chain wheel carrier 32, and the object reducing the failed material loss rate of processing can be reached, in addition, all adopt hardness less by this chain wheel carrier 32 and this lock firmware 33 and the aluminum alloy of lighter in weight is made, and this chain wheel carrier 32 and this actuator 31 are rabbeted by non-circular structure, and lightweight can be had and bear two advantages of high torsion.
Consult Fig. 6, the second preferred embodiment that the utility model is used for the free wheel base 3 of ratchet wheel hub is similar to this first preferred embodiment, its difference is that this second preferred embodiment is applicable to be arranged on an axle 1 and a housing 2, and the structure of this actuator 31.
This housing 2 can be sheathed on outside this axle 1 rotationally, and comprises multiple respectively by the ratchet 411 that inner peripheral surface is circumferentially recessed.
This actuator 31 comprises a drive portion 312, and the other end and the non-circular embedding part 311 of radial cross section being arranged at this drive portion 312 on the contrary.In the present embodiment, this drive portion 312 has multiple partially dynamic and engage the pawl 42 of described ratchet 411 respectively by elasticity.
So, this second preferred embodiment also can reach the object identical with above-mentioned first preferred embodiment and effect.
In sum, be separate two assemblies manufactured by this actuator 31 and this chain wheel carrier 32, and the object reducing the failed material loss rate of processing can be reached, being all by this chain wheel carrier 32 and this lock firmware 33 adopts the less and aluminum alloy of lighter in weight of hardness to make again, and this chain wheel carrier 32 and this actuator 31 are for rabbet by non-circular structure, and lightweight can be had and bear two advantages of high torsion, so really can the purpose of this utility model be reached.
As described above, be only embodiment of the present utility model, when can not limit the scope of the utility model enforcement with this, namely all simple equivalences done according to the utility model claims and description change and modify, and all still belong to scope of the present utility model.
Claims (7)
1., for a free wheel base for ratchet wheel hub, it is characterized in that:
The actuator of a hollow, comprises a drive portion, and the other end and the non-circular embedding part of radial cross section being arranged at this drive portion on the contrary;
The chain wheel carrier of a hollow, connects this actuator, and comprises this embedding part of socket and the radial cross section belled part of matching with this embedding part, and one to be extended radially inwardly by inner peripheral surface and to be adjacent to the block edge of this belled part; And
The lock firmware of a hollow, can removably be locked in this actuator, and comprises the head that is resisted against this block edge vertically, and a screw lock is in the body portion of the inner peripheral surface of this actuator.
2. the free wheel base for ratchet wheel hub according to claim 1, is characterized in that: the material hardness of this chain wheel carrier is less than the material hardness of this actuator.
3. the free wheel base for ratchet wheel hub according to claim 2, is characterized in that: the material hardness of this lock firmware is less than the material hardness of this actuator.
4. the free wheel base for ratchet wheel hub according to claim 3, is characterized in that: this free wheel base being used for ratchet wheel hub also comprises a packing ring be arranged between this block edge and this head, and this head is by this packing ring and this block edge closely contact vertically.
5. the free wheel base for ratchet wheel hub according to claim 4, is characterized in that: this embedding part is quincunx in what match respectively with the radial cross section of this belled part.
6. the free wheel base for ratchet wheel hub according to claim 2, is characterized in that: this drive portion has multiple ratchet.
7. the free wheel base for ratchet wheel hub according to claim 2, is characterized in that: this drive portion has multiple pawl partially moved by elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520239303.9U CN204572915U (en) | 2015-04-20 | 2015-04-20 | For the free wheel base of ratchet wheel hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520239303.9U CN204572915U (en) | 2015-04-20 | 2015-04-20 | For the free wheel base of ratchet wheel hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572915U true CN204572915U (en) | 2015-08-19 |
Family
ID=53865556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520239303.9U Expired - Fee Related CN204572915U (en) | 2015-04-20 | 2015-04-20 | For the free wheel base of ratchet wheel hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572915U (en) |
-
2015
- 2015-04-20 CN CN201520239303.9U patent/CN204572915U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |