CN201891767U - Friction type roller overrunning clutch - Google Patents
Friction type roller overrunning clutch Download PDFInfo
- Publication number
- CN201891767U CN201891767U CN2010206693896U CN201020669389U CN201891767U CN 201891767 U CN201891767 U CN 201891767U CN 2010206693896 U CN2010206693896 U CN 2010206693896U CN 201020669389 U CN201020669389 U CN 201020669389U CN 201891767 U CN201891767 U CN 201891767U
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- Prior art keywords
- retainer
- roller
- outer ring
- ring
- inner ring
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Abstract
The utility model discloses a friction type roller overrunning clutch, which comprises a cylindrical inner ring, a cylindrical outer ring, rollers, a retainer and a return spring, wherein the outer ring and the inner ring are sleeved coaxially; the retainer is arranged between the inner ring and the outer ring; the rollers are embedded in grids of the retainer; the inner surface of the outer ring is provided with a wedge-shaped cavity which has a clutching effect; the wedge-shaped cavity consists of grooves of which the axial directions are consistent with the axial direction of the outer ring; the grooves are circumferentially uniformly arranged at intervals along the inner surface of the outer ring; the amount of the grooves is consistent with the amount of the rollers embedded into the retainer; the outer surface of the inner ring is a cylindrical smooth surface; the rollers are positioned between the outer surface of the inner ring and the grooves of the wedge-shaped cavity of the outer ring; and the locking or relative rotation between the rollers and the inner and outer rings are realized under the ejecting and pushing action of the return spring. The wedge-shaped cavity of the overrunning clutch is arranged on the inner surface of the outer ring of the overrunning clutch and the outer surface of the inner ring is arranged to be a smooth surface, so that the processing of the outer ring and the outer surfaces of the inner ring is completed by a single-stage processing technique, the working efficiency is improved and the material consumption is reduced.
Description
Technical field
The utility model relates to a kind of free wheel device, particularly a kind of frictional roller overrunning clutch.
Background technique
The frictional roller overrunning clutch that uses in the prior art comprises inside and outside circle, roller, retainer and Returnning spring at present, wherein, coaxial fit between inner ring, the outer ring, inner ring uses as star-wheel and rotating shaft, its outer surface has been provided with the wedge cavities of clutch action, wedge cavities is by being constituted along the axial groove of inner ring, and groove evenly was provided with the outer surface ring week of some along inner ring; Between the inside and outside circle retainer is set, retainer is the squirrel-cage round column structure, ring equidistantly, axially is provided with connection strap in week between the two terminal circle annular peripheral frame, connection strap is divided into uniform grid with the outer surface of retainer, grid is embedded in that size is adaptive, the roller of axial unanimity, and the quantity of roller is consistent with the quantity of described wedge cavities groove; Simultaneously, the outer surface of inner ring also is provided with bearings mounted light face, and described light face is usually located at the both sides of wedge cavities; The two ends of inner ring also are provided with and make inner ring realize axial splines or the pin-and-hole that links with external equipment; The shortcoming of this structure is that the groove surface of wedge cavities is located at the outer surface of inner ring, need with the light face coplane of connection bearing, adding necessary segmentation processing in man-hour, man-hour is long, expense is high and yield rate is low, and it is many to process used blank materials, just has very big loss in case waste product occurs in the course of working.
The model utility content
The utility model is in order to overcome defective in the above-mentioned prior art, can to realize that outer ring and inner ring outer surface use the single hop processing technology can finish processing, improve the processing work efficiency greatly, improving yield rate; Simultaneously the blank materials of inner ring are greatly reduced, a large amount of material saving costs.
The utility model provides a kind of frictional roller overrunning clutch, comprises the outer ring of ring, columniform inner ring, roller, retainer and Returnning spring; The outer ring, coaxial fit between the inner ring, in, retainer is set between the outer ring, retainer is the squirrel-cage round column structure, ring week equidistantly between its two terminal circle annular peripheral frame, connection strap axially is set, connection strap becomes uniform grid with the surface segmentation of retainer, it is adaptive that grid is embedded in size, the axial described roller consistent with the outer ring, one end of the outer surface of roller and Returnning spring connects, the sidewall of the other end of Returnning spring and the connection strap of retainer connects, the internal surface of outer ring has been provided with the wedge cavities of clutch action, wedge cavities is constituted by having with the axial consistent groove in outer ring, groove evenly was provided with at interval along the internal surface ring week of outer ring, roller quantity embedded in its quantity and the retainer is consistent, the outer surface of inner ring is columniform light face, and roller is in the grid of retainer between inner ring outer surface and the outer ring wedge cavities groove.
Preferably, the groove of formation outer ring wedge cavities has centrifugal inclined-plane or the eccentric circle cambered surface with respect to outer coil axis, make roller to offset with smaller diameter side, the inner ring outer surface of outer ring wedge-shaped impression face respectively and be close to the locking that forms inside and outside circle, or be under the compressive state respectively larger diameter side, inner ring outer surface with outer ring wedge-shaped impression face at roller release, Returnning spring and contact with rolling and form relatively rotating of inside and outside circle according to the needs of clutch.
Preferably, Returnning spring is the rectangular spring, and the two-port of spring is set to the plane, and the length and width size and the roller of spring are suitable.
Preferably, the connection strap of retainer is the rectangular column structure, and its one side towards Returnning spring is provided with the lug that is used for fixing the rectangular spring, lug be shaped as rectangular, the interior cross section of its size and Returnning spring is suitable, and lug insertion spring forms the constraint to spring.
Preferably, the connection strap of retainer towards the one side of roller be provided with roller axle to the circular groove consistent, that profile is adaptive, circular groove is used for support and the constraint to roller under inside and outside circle lock state.
Preferably, be provided for vertically between the wedge-shaped impression of outer ring retraining, the fixed groove of fixed retainer, the outer surface of the connection strap of retainer radially extends suitable and embed wherein lug with fixed groove.
Preferably, the two ends of inner ring also are provided with and make inner ring realize axial splines or the pin-and-hole that links with external equipment.
Compared with prior art, the utlity model has following beneficial effect:
1, is arranged at the internal surface of free wheel device outer ring by wedge cavities with free wheel device, the inner ring outer surface that socket-connects with the outer ring is set to the light face simultaneously, realize that outer ring and inner ring outer surface use the single hop processing technology can finish processing, significantly reduced amount of finish, improve the processing work efficiency, improved yield rate;
2, because the inner ring outer surface is a light face structure, make the blank of inner ring only need keep very little machining allowance, so materials greatly reduce, a large amount of material saving costs, even waste product occurs, loss also can reduce.
Description of drawings
Fig. 1 is the exploded perspective view of the utility model free wheel device;
Fig. 2 is that A-A after the utility model free wheel device assembling is to sectional drawing;
Fig. 3 is that B-B after the utility model free wheel device assembling is to sectional drawing.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-outer ring, 11-wedge cavities groove, 12-retainer fixed groove, 2-inner ring, 21-spline, 22-pin-and-hole, 3-retainer, 31-retainer connection strap, 32-spring attaching clamp, 33-groove, 34-retainer attaching clamp, 4-roller, 5-Returnning spring.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.
Free wheel device of the present utility model as Figure 1-3, comprise cylindrical inner ring 2, ring outer ring 1, roller 4, retainer 3 and Returnning spring 5, outer ring 1, coaxial fit between the inner ring 2, in retainer 3 is arranged at, between the outer ring, retainer 3 is the squirrel-cage round column structure, ring week equidistantly between the two terminal circle annular peripheral frame, connection strap 31 axially is set, connection strap 31 is the rectangular column structure, connection strap 31 is divided into uniform grid with the outer surface of retainer, it is adaptive that grid is embedded in size, the axial roller 4 consistent with the outer ring, one end of the outer surface of roller 4 and Returnning spring 5 connects, and a side wall surface of the other end of Returnning spring 5 and the connection strap of retainer 31 connects; The internal surface of outer ring has been provided with the wedge cavities of clutch action, wedge cavities is constituted by having with the axial consistent wedge cavities groove 11 in outer ring, wedge cavities groove 11 evenly was provided with at interval along the internal surface ring week of outer ring, roller embedded in its quantity and the retainer is consistent, roller 4 is in the grid of retainer between the outer surface and outer ring wedge cavities groove 11 of inner ring 2, wedge cavities groove 11 has the centrifugal inclined-plane with respect to outer coil axis, make roller 4 can according to the needs of clutch respectively with the smaller diameter side of outer ring 1 wedge cavities groove surface, inner ring 2 outer surfaces offset and are close in the formation, the locking of outer ring, or in roller 4 releases, Returnning spring 5 is under the compressive state respectively the larger diameter side with outer ring 1 wedge cavities groove surface, inner ring 2 outer surfaces contact with rolling in the formation, relatively rotating of outer ring; The outer surface of inner ring 2 is columniform light face.
Further shown in Fig. 1,3, Returnning spring 5 is the rectangular spring, and the two-port of Returnning spring 5 is set to the plane, and the length and width size and the roller 4 of Returnning spring 5 are suitable, plays giving the optimized answer of roller, supporting effect.
Further shown in Fig. 1,3, the connection strap 31 of retainer 3 is provided with the lug 32 of the square spring of fixed length towards the one side of Returnning spring 5, lug 32 be shaped as rectangular, the interior cross section of its size and Returnning spring 5 is suitable, makes lug 32 can insert spring and forms constraint to spring.
Further shown in Fig. 1,3, retainer connection strap 31 is provided with and the roller 4 axial consistent adaptive circular grooves 33 of profile towards the one side of roller 4, and groove 33 can play support, effect of contraction better to roller to roller when locking with the inside and outside circle of clutch.
Further shown in Fig. 1,3, the fixed groove 12 of constraint retainer 3 is set between the wedge cavities groove 11 of outer ring 1 vertically, it is suitable and embed the lug 34 of fixed groove 12 that the outer surface of the connection strap 31 of retainer radially extends fixed groove therewith 12, and this structure setting can guarantee to have firm relative position between outer ring 1 and the retainer 3.
Further shown in Fig. 2,3, the two ends of inner ring also are provided with and make inner ring realize axial splines 21 or the pin-and-hole 22 that links with external equipment
Compared with prior art, the utility model is arranged at the internal surface of free wheel device outer ring by the wedge cavities with free wheel device, the inner ring outer surface that socket-connects with the outer ring is set to the light face simultaneously, realize that outer ring and inner ring outer surface use the single hop processing technology can finish processing, significantly reduced amount of finish, improve the processing work efficiency, improved yield rate; In addition,, make the blank of inner ring only need keep very little machining allowance, so materials greatly reduce because the inner ring outer surface is light face structure, a large amount of material saving costs, even waste product occurs, loss also can reduce.
More than disclosed only be a specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.
Claims (7)
1. a frictional roller overrunning clutch comprises the outer ring of ring, columniform inner ring, roller, retainer and Returnning spring; The outer ring, coaxial fit between the inner ring, in, retainer is set between the outer ring, retainer is the squirrel-cage round column structure, ring week equidistantly between its two terminal circle annular peripheral frame, connection strap axially is set, connection strap becomes uniform grid with the surface segmentation of retainer, it is adaptive that grid is embedded in size, the axial described roller consistent with the outer ring, one end of the outer surface of roller and Returnning spring connects, the sidewall of the other end of Returnning spring and the connection strap of retainer connects, it is characterized in that, the internal surface of described outer ring has been provided with the wedge cavities of clutch action, wedge cavities is constituted by having with the axial consistent groove in outer ring, described groove evenly was provided with at interval along the internal surface ring week of outer ring, roller quantity embedded in its quantity and the retainer is consistent, the outer surface of described inner ring is columniform light face, and roller is in the grid of retainer between inner ring outer surface and the outer ring wedge cavities groove.
2. frictional roller overrunning clutch according to claim 1, it is characterized in that, the groove of described formation outer ring wedge cavities has centrifugal inclined-plane or the eccentric circle cambered surface with respect to outer coil axis, make described roller to offset with smaller diameter side, the inner ring outer surface of outer ring wedge-shaped impression face respectively and be close to the locking that forms inside and outside circle according to the needs of clutch, or the larger diameter side, the inner ring outer surface that are under the compressive state respectively with outer ring wedge-shaped impression face at roller release, Returnning spring contact with rolling, and forms relatively rotating of inside and outside circle.
3. frictional roller overrunning clutch according to claim 1 and 2 is characterized in that, described Returnning spring is the rectangular spring, and the two-port of spring is set to the plane, and the length and width size and the roller of spring are suitable.
4. frictional roller overrunning clutch according to claim 3, it is characterized in that, the connection strap of described retainer is the rectangular column structure, its one side towards Returnning spring is provided with the lug that is used for fixing the rectangular spring, lug be shaped as rectangular, the interior cross section of its size and Returnning spring is suitable, and lug insertion spring forms the constraint to spring.
5. frictional roller overrunning clutch according to claim 3, it is characterized in that, the connection strap of described retainer towards the one side of roller be provided with roller axle to the circular groove consistent, that profile is adaptive, described circular groove is used for support and the constraint to roller under inside and outside circle lock state.
6. frictional roller overrunning clutch according to claim 1 and 2, it is characterized in that, be provided for retraining, fixing the fixed groove of described retainer between the wedge-shaped impression of described outer ring vertically, the outer surface of the connection strap of retainer radially extends the suitable and embedding lug wherein with described fixed groove.
7. frictional roller overrunning clutch according to claim 1 and 2 is characterized in that, the two ends of described inner ring also are provided with and make inner ring realize axial splines or the pin-and-hole that links with external equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206693896U CN201891767U (en) | 2010-12-14 | 2010-12-14 | Friction type roller overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206693896U CN201891767U (en) | 2010-12-14 | 2010-12-14 | Friction type roller overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891767U true CN201891767U (en) | 2011-07-06 |
Family
ID=44221244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206693896U Expired - Fee Related CN201891767U (en) | 2010-12-14 | 2010-12-14 | Friction type roller overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086911A (en) * | 2010-12-14 | 2011-06-08 | 宁波市江北海通汽车配件有限公司 | Friction-type roller overrunning clutch |
-
2010
- 2010-12-14 CN CN2010206693896U patent/CN201891767U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086911A (en) * | 2010-12-14 | 2011-06-08 | 宁波市江北海通汽车配件有限公司 | Friction-type roller overrunning clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315032 Ningbo Zhuang Zhuang Road, Zhejiang, No. 499 Patentee after: Ningbo Haitong auto parts Limited by Share Ltd Address before: 315032 Ningbo Zhuang Zhuang Road, Zhejiang, No. 499 Patentee before: Ningbo Haitong Auto Parts Co., Ltd. |
|
| 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: 20110706 Termination date: 20191214 |