CN202213440U - Hub housing unit of foot brake hub - Google Patents
Hub housing unit of foot brake hub Download PDFInfo
- Publication number
- CN202213440U CN202213440U CN2011203135036U CN201120313503U CN202213440U CN 202213440 U CN202213440 U CN 202213440U CN 2011203135036 U CN2011203135036 U CN 2011203135036U CN 201120313503 U CN201120313503 U CN 201120313503U CN 202213440 U CN202213440 U CN 202213440U
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- Prior art keywords
- sleeve
- peristome
- hub
- hub shell
- axis
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Abstract
A hub housing unit of a foot brake hub comprises the following components: a hub housing around an axis, a first sleeve and a second sleeve. The hub housing comprises the following components: a first opening, a second opening, a plurality of first grooves which inwards extend from the first opening respectively, and a plurality of second grooves which inwards extend from the second opening respectively. The first sleeve is sleeved in the hub housing and comprises the following components: a plurality of first projected teeth which are respectively clamped in the first grooves, a first supporting surface which corresponds with the first opening, and a first abutting surface which is provided at the inside part of the first supporting surface. The second sleeve is sleeved in the hub housing and comprises the following components: a plurality of second projected teeth which are respectively clamped in the second grooves, a second supporting surface which corresponds with the second opening, and a second abutting surface which is provided at the inside part of the second supporting surface.
Description
Technical field
The utility model relates to a kind of service brake flower hub, particularly relates to a kind of hub shell unit of service brake flower hub.
Background technology
As shown in Figure 1; For M368573 number disclosed first kind of service brake of TaiWan, China patent certificate that this case applicant has got permission spent hub; Comprise one around the hub shell 11 of an axle 90, a pair of be arranged at brake facing 12 in this hub shell 11, one rotatably be set in axle drive shaft 13 on this axle 90, clutch cover that is screwed together in this axle drive shaft 13 14, one make this clutch cover 14 keep the elastic element 15 that moves along these axle 90 straight lines; And a plurality of balls 16 that are arranged between this hub shell 11 and this axle 90; When this axle drive shaft 13 rotated towards a working direction C, this clutch cover 14 was advanced with this hub shell 11 to contact by spiral shell, made this axle drive shaft 13 and this hub shell 11 produce interlock; When this axle drive shaft 13 rotates towards a brake direction D in contrast to this working direction C; This axle drive shaft 13 can move back this clutch cover 14 by spiral shells, makes this clutch cover 14 separate with this hub shell 11 and pushes against this brake facing 12, and then produce braking effect.
The shortcoming of above-mentioned first kind of service brake flower hub is that this hub shell 11 is iron materials, so Heavy Weight is not easy to produce variation in moulding during manufacturing; So that need two of extra combinations to be used to combine the blade 17 of spoke; In addition, this service brake flower hub is not easy to carry out surface treatment, for example electroplates, colouring etc.
As shown in Figure 2; Be No. 547346 disclosed second kind of service brake flower hub of TaiWan, China patent announcement; Comprise a hub shell 21, one first brake pipe 22, one second brake pipe 23, axle drive shaft 24, clutch cover 25, an elastic element 26, and a plurality of bearings 27.This hub shell 21 is an aluminum; So can improve the shortcoming of aforementioned first kind of service brake flower hub; When this axle drive shaft 24 rotated towards a working direction C, this clutch cover 25 was advanced with this first brake pipe 22 to contact by spiral shell, made this axle drive shaft 24 and this hub shell 21 produce interlock; When this axle drive shaft 24 rotates towards a brake direction D in contrast to this working direction C; This axle drive shaft 24 can move back this clutch cover 25 by spiral shells, makes this clutch cover 25 separate with this first brake pipe 22 and pushes against this second brake pipe 23, and then produce braking effect.
The shortcoming of above-mentioned second kind of service brake flower hub is that this first brake pipe 22 and this second brake pipe 23 all are to adopt the helicitic texture screw lock in this hub shell 21; Because the moment of torsion that this axle drive shaft 24 is produced when rotating is very big; So when this clutch cover 25 and this first brake pipe 22 (or this second brake pipe 23) when contacting; Helicitic texture causes this first brake pipe 22 (or this second brake pipe 23) to produce rotation easily and gets loose, and the position is moved and influenced due function, and the moment of torsion of this axle drive shaft 24 also is easy to the helicitic texture destruction that mechanical strength is more weak in addition; Cause this first brake pipe 22 or this second brake pipe 23 in this hub shell 21, to change, maintenance is brought inconvenience.
Summary of the invention
The purpose of the utility model is to provide a kind of outward appearance to produce the hub shell unit of the high service brake flower hub of variation in moulding and mechanical strength easily.
The hub shell unit of the utility model service brake flower hub comprises a hub shell, first sleeve, and one second sleeve.
This hub shell is around an axis; And comprise that one first peristome, second peristome in contrast to this first peristome, one connect inner peripheral surface between this first peristome and this second peristome, a plurality ofly extend internally and first groove of parallel this axis from this first peristome respectively, reach and a plurality ofly extend internally and second groove of parallel this axis from this second peristome respectively.
This first sleeve is set in this hub shell from this first peristome cover along this axis; And comprise a plurality of first double wedges that are embedded in said first groove respectively, one corresponding to this first peristome and first bearing surface that centers on towards this axis, and one to be positioned at this first bearing surface inboard and around the first pushing and pressing face of this axis.
This second sleeve is set in this hub shell from this second peristome cover along this axis; And comprise a plurality of second double wedges that are embedded in said second groove respectively, one corresponding to this second peristome and second bearing surface that centers on towards this axis, and one to be positioned at this second bearing surface inboard and around the second pushing and pressing face of this axis.
The hub shell unit of the utility model, first bearing surface of this first sleeve and second bearing surface of this second sleeve all are to form a pearl bowl structure.
The hub shell unit of the utility model, first bearing surface of this first sleeve and second bearing surface of this second sleeve all are to form the bearing installation face with right angle.
The hub shell unit of the utility model, said first groove and the said second groove side of the being croze, said first double wedge and the said second double wedge side of the being bolt tooth.
The beneficial effect of the utility model is: adopt aluminium when this hub shell is made, so in light weight, outward appearance is produced variation in moulding easily; And carry out surface treatment easily; This first sleeve and this hub shell combine and this second sleeve and this hub shell to combine all be to adopt groove and double wedge structure, so mechanical strength is high, can bear the strength effect of high moment of torsion; In addition; Adopt the low-carbon (LC) chrome-moly steel when this first sleeve and this second sleeve are made, can significantly increase the single-piece mechanical strength, so this hub shell unit can fully satisfy light weight, durable, use effect that outward appearance is good compared to this hub shell of aluminum.
Description of drawings
Fig. 1 is a cross-sectional schematic, and the structure of first kind of service brake flower hub in the past is described;
Fig. 2 is a cross-sectional schematic, and the structure of second kind of service brake flower hub in the past is described;
Fig. 3 is a three-dimensional exploded view, and first preferred embodiment of the hub shell unit of the utility model service brake flower hub is described;
Fig. 4 is a cross-sectional schematic, and a hub shell, first sleeve, and the unitized construction of one second sleeve are described in this first preferred embodiment;
Fig. 5 is a cross-sectional schematic, and the use situation of this first preferred embodiment is described;
Fig. 6 is a cross-sectional schematic, and second preferred embodiment of the hub shell unit of the utility model service brake flower hub is described.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
Before the utility model is described in detail, be noted that components identical is to represent with identical numbering in following institute's drawings attached.
Like Fig. 3,4, shown in 5; First preferred embodiment of the hub shell unit 300 of the utility model service brake flower hub comprises a hub shell 30, first sleeve 40; And one second sleeve 50; This hub shell unit 300 is around an axle 90, and this axle 90 can be installed an axle drive shaft 91, a clutch cover 92, and an elastic element 93.
This hub shell 30 is around an axis X; And comprise that one first peristome 31, one connect inner peripheral surface 33 between this first peristome 31 and this second peristome 32, a plurality ofly extend internally and first groove 34 of parallel this axis X from this first peristome 31 respectively in contrast to second peristome 32 of this first peristome 31, one; And a plurality ofly extend internally and second groove 35 of parallel this axis X from this second peristome 32 respectively; In the present embodiment, said first groove 34 and said second groove, 35 side's of being crozes.
This first sleeve 40 is set in this hub shell 30 from these first peristome, 31 covers along this axis X; And comprise a plurality of first double wedges 41 that are embedded in said first groove 34 respectively, one corresponding to this first peristome 31 and first bearing surface 42 that centers on towards this axis X, and one to be positioned at this first bearing surface 42 inboard and around the first pushing and pressing face 43 of this axis X.
This second sleeve 50 is set in this hub shell 30 from these second peristome, 32 covers along this axis X; And comprise that a plurality of second double wedges 51 that are embedded in said second groove 35 respectively, one are corresponding to this second peristome 32 and second bearing surface 52 that centers on towards this axis X; And second pushing and pressing face 53 that is positioned at these second bearing surface, 52 inboards and centers on this axis X; In the present embodiment; The flute profile side of the being bolt tooth of said first double wedge 41 and said second double wedge 51; First bearing surface 42 of this first sleeve 40 all is to form a pearl bowl structure with second bearing surface 52 of this second sleeve 50, is applicable to be provided with in the background technology the employed ball of said first kind of service brake flower hub.
When this axle drive shaft 91 rotates towards a working direction C; This clutch cover 92 is advanced with this first pushing and pressing face 43 to contact by spiral shell, makes this axle drive shaft 91 and this hub shell 30 produce interlock, when this axle drive shaft 91 rotates towards a brake direction D in contrast to this working direction C; This axle drive shaft 91 can move back this clutch cover 92 by spiral shell; Make this clutch cover 92 separate, and the strength of this second pushing and pressing face 53 of pushing and pressing is provided, and then produce braking effect with this first pushing and pressing face 43.
This hub shell 30 adopts aluminium when making, so in light weight, outward appearance is produced variation in moulding easily; And carry out surface treatment easily, in the present embodiment, this hub shell 30 adopts JIS specification number 6061 aluminum alloys; This first sleeve 40 and this hub shell 30 combine and this second sleeve 50 and this hub shell 30 to combine all be employing side's bolt tooth and square croze structure, so mechanical strength is high, can bear the strength effect of high moment of torsion; In addition; This first sleeve 40 adopts the low-carbon (LC) chrome-moly steel when making with this second sleeve 50, can significantly increase the single-piece mechanical strength compared to this hub shell 30 of aluminum, in the present embodiment; This first sleeve 40 adopts JIS specification number SCM415 low-carbon (LC) chrome-moly steels with this second sleeve 50, so this hub shell unit 300 can fully satisfy light weight, durable, use effect that outward appearance is good.
As shown in Figure 6; Below will further specify second preferred embodiment of the hub shell unit 300 of the utility model service brake flower hub; This second preferred embodiment and above-mentioned first preferred embodiment are roughly the same; It all is to form the bearing installation face with right angle that its difference is in second bearing surface 52 of first bearing surface 42 of this first sleeve 40 and this second sleeve 50, is applicable to the second kind of employed bearing of service brake flower hub that is provided with described in the background technology.
Claims (4)
1. the hub shell unit of service brake flower hub is characterized in that:
This hub shell unit comprises a hub shell, first sleeve, and one second sleeve;
This hub shell is around an axis; And comprise that one first peristome, second peristome in contrast to this first peristome, one connect inner peripheral surface between this first peristome and this second peristome, a plurality ofly extend internally and first groove of parallel this axis from this first peristome respectively, reach and a plurality ofly extend internally and second groove of parallel this axis from this second peristome respectively;
This first sleeve is set in this hub shell from this first peristome cover along this axis; And comprise a plurality of first double wedges that are embedded in said first groove respectively, one corresponding to this first peristome and first bearing surface that centers on towards this axis, and one to be positioned at this first bearing surface inboard and around the first pushing and pressing face of this axis;
This second sleeve is set in this hub shell from this second peristome cover along this axis; And comprise a plurality of second double wedges that are embedded in said second groove respectively, one corresponding to this second peristome and second bearing surface that centers on towards this axis, and one to be positioned at this second bearing surface inboard and around the second pushing and pressing face of this axis.
2. the hub shell unit of service brake flower hub according to claim 1 is characterized in that: first bearing surface of this first sleeve and second bearing surface of this second sleeve all are to form a pearl bowl structure.
3. the hub shell unit of service brake flower hub according to claim 1 is characterized in that: first bearing surface of this first sleeve and second bearing surface of this second sleeve all are to form the bearing installation face with right angle.
4. the hub shell unit of service brake flower hub according to claim 1 is characterized in that: said first groove and the said second groove side of the being croze, said first double wedge and the said second double wedge side of the being bolt tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203135036U CN202213440U (en) | 2011-08-24 | 2011-08-24 | Hub housing unit of foot brake hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203135036U CN202213440U (en) | 2011-08-24 | 2011-08-24 | Hub housing unit of foot brake hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202213440U true CN202213440U (en) | 2012-05-09 |
Family
ID=46012708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203135036U Expired - Fee Related CN202213440U (en) | 2011-08-24 | 2011-08-24 | Hub housing unit of foot brake hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202213440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711724A (en) * | 2016-02-01 | 2016-06-29 | 苏州福而康车料有限公司 | Brake fixing device of bicycle hub |
-
2011
- 2011-08-24 CN CN2011203135036U patent/CN202213440U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711724A (en) * | 2016-02-01 | 2016-06-29 | 苏州福而康车料有限公司 | Brake fixing device of bicycle hub |
| CN105711724B (en) * | 2016-02-01 | 2018-06-19 | 苏州福而康车料有限公司 | A kind of flower-drum brake for bicycle fixing device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20180824 |