CN201651113U - Multi- roller overrunning clutch - Google Patents
Multi- roller overrunning clutch Download PDFInfo
- Publication number
- CN201651113U CN201651113U CN2010201542495U CN201020154249U CN201651113U CN 201651113 U CN201651113 U CN 201651113U CN 2010201542495 U CN2010201542495 U CN 2010201542495U CN 201020154249 U CN201020154249 U CN 201020154249U CN 201651113 U CN201651113 U CN 201651113U
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- roller
- outer ring
- groove
- star
- pad
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Abstract
The utility model relates to an overrunning clutch, particularly to a multi-roller overrunning clutch suitable for the situation of small design space and high torque, comprising multiple rollers, an inner star wheel type outer ring, a shroud and a pad, grooves having same number with the rollers are uniformly distributed on the inner circumference of the inner star wheel type outer ring, the rollers are arranged in the grooves, the bottom of the groove has one-way raceway for the roller, flaky spring tab for pushing the roller to the groove is installed in the groove, shroud and the inner star wheel type are tightly matched, and supports the roller from one side of the axial direction, the pad and the inner star wheel type outer ring are dismountably and fixedly connected, and supports the roller from the other side in axial direction. The overrunning clutch of the utility model resolves the technical problems of small number of the clutch roller, small transfer torque, complex structure, poor stability and short service life.
Description
Technical field
The utility model relates to a kind of free wheel device, particularly a kind of multi-roller free wheel device that is applicable to the occasion that high rotating speed and torque demand are also high.
Background technique
Be used in the starting of the gearbox in the gearbox of automobile or torque converter, the engineering machinery, two-wheeled or motor tricycle and the gearbox transmit or the anti-overrunning clutch that reverses, three roller-type overrunning clutches that commonly used is as shown in Fig. 9, Figure 10 and Figure 11, it has three rollers 50 that are used for transmitting torque, dependence is supported by the spring compressor 40 that is enclosed within on the spring 30, and there are three inclined hole 60a 60 sides, outer ring of star-wheel formula, spring seat 20 is pressed in the inclined hole 60a with regard to close-fitting, and the other end of spring 30 just rides on the spring seat 20.In order to prevent the axial displacement of roller 50, also need a cover cap 10 and pad 70 to set off in addition.Its working principle is: as shown in figure 11, when interior raceway 80 during to the rotation of the narrow method in star-wheel 60b space, promptly be the clockwise direction rotation as shown in figure 11, the transmitting torque by roller 50 wedgings separates when the big direction rotation in star-wheel 60b space and surmounts.Moment when making work can produce moment of torsion, must a pretightening force be arranged to roller 50, therefore just needs with a spring 30, and in order to allow spring 30 that enough extendable rooms are arranged, also need are at the outer ring of star-wheel formula 60 side rat holing 60a.This design has just caused the design quantity of star-wheel can not be too many, is generally three, and the limit also can only four, and roller 50 also at most can only four, so the lifting of moment of torsion has had significant limitation.In order to improve moment of torsion, the method that great majority adopt is that the boundary dimension of the outer ring 60 of increase star-wheel formula increases the size of roller 50, but enough design spaces must be arranged in design.Because roller 50 is constantly impacted in the course of the work, cause spring 30 also constantly reciprocating on the other hand, time of movement is many more, and spring seat 20 just might be gone out from inclined hole 60a more, thereby free wheel device was lost efficacy.Moreover pad 70 is to separate with clutch, only installs simultaneously when using product.
The model utility content
The technical problems to be solved in the utility model is: for the needs that design, it is limited to solve existing roller-type overrunning clutch torque capacity, can be in identical design space maximum raising torque capacity.Solve existing roller type complex structure, manufacturability is poor, and product lost efficacy easily, may go out as spring seat, and spring compressor may move dumb or clamping stagnation in inclined hole.The utility model provides a kind of multi-roller free wheel device, it can provide more roller to work together, at least can six, therefore the torque capacity that produces is 2～4 times of conventional three roller-type overrunning clutches, under identical design space, can significantly improve torque capacity, this is an one, it two is that structure is simpler, and product performance are more reliable and more stable.Owing to need not to process inclined hole on the star-wheel outer ring, pad also becomes as a whole with roller-type overrunning clutch, and technology is obviously oversimplified, and has also saved cost of production, assembles also simpler.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of multi-roller free wheel device, it comprises a plurality of rollers, star-wheel formula outer ring, cover cap and pad, the inner headed face of described star-wheel formula outer ring is evenly distributed in the groove that equates with roller quantity, roller is positioned at groove, the groove bottom of groove has the unidirectional raceway of roller, also be equipped with in the described groove and be used for the springs sheet of roller pushing to the cell wall of groove, cover cap and star-wheel formula outer ring close-fitting, hold roller from an axial side direction, pad and removable the fixedlying connected in star-wheel formula outer ring are held roller from axial opposite side direction.The springs sheet is installed in the groove of star-wheel formula outer ring, need not on the star-wheel outer ring, to process inclined hole, therefore can provide more roller to work together, under identical design space, can significantly improve torque capacity, this is an one, and it two is that structure is simpler, and product performance are more reliable and more stable.Pad also becomes as a whole with roller-type overrunning clutch, and technology is obviously oversimplified, and has also saved cost of production, assembles also simpler.
Be further to simplify technology, assemble more conveniently that the end face of described star-wheel formula outer ring offers aperture, the end face corresponding to star-wheel formula outer ring on the described pad has the aperture place to be provided with the protruding structure that cooperates with aperture.In the aperture on the end face of the insertion of the protruding structure on pad star-wheel formula outer ring, can make pad and star-wheel formula outer ring positive connection.
Be further simplified structure, described protruding structure is pin or lug.
Be simplified structure further, reduce production costs, simplify technology, improve the reliability and stability that pad connects with star-wheel formula outer ring, described protruding structure is a bending plate.Bend inwards after described bending plate is cut off the pad edge and form.
For roller is remained in the groove of star-wheel formula outer ring reliably, a side channel wall of described groove has on the cambered surface that matches with roller, the opposite side cell wall and offers the spring positioning groove; Described springs sheet one end is crooked shape end, and the groove bottom of the spring positioning groove of the exterior edge face of crooked shape end and star-wheel formula outer ring fits, and the other end of springs sheet is the circular arc end, and the circular arc end cooperates with the roller periphery.
For further improving torque capacity, the quantity of described roller is 6～12.
The beneficial effects of the utility model are, multi-roller free wheel device of the present utility model, the crooked shape of utilizing springs sheet one end to be designed to cleverly just is buckled in the groove of star-wheel formula outer ring and the location can not be fallen into, adopt the other end of springs sheet to be arranged to circular arc and hold and roll, solved the problem of roller location.Pad is held in by bending plate in the aperture of star-wheel formula outer ring, holds roller from axial opposite side direction, thereby makes clutch become as a whole fully, has made things convenient for user assembled.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of the specific embodiment of multi-roller free wheel device of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the springs sheet in the specific embodiment of multi-roller free wheel device of the present utility model;
Fig. 4 is the partial enlarged drawing of the star-wheel outer ring in the specific embodiment of multi-roller free wheel device of the present utility model;
Fig. 5 is the schematic representation of the star-wheel outer ring in the specific embodiment of multi-roller free wheel device of the present utility model;
Fig. 6 is the pad schematic representation of the bracelet in the specific embodiment of multi-roller free wheel device of the present utility model;
Fig. 7 is the B-B rotation cut-away view of Fig. 6;
Fig. 8 is that the C of Fig. 7 is to local diagrammatic sketch;
Fig. 9 is the structural representation of existing three roller overrunning clutches;
Figure 10 is the D-D sectional view of Fig. 9;
Figure 11 is the partial enlarged drawing of a star-wheel in existing three roller overrunning clutches.
Embodiment
As Fig. 1～8 one kind of multi-roller frame free wheel device, star-wheel formula outer ring 1, cover cap 2, the pad 5 with three bending sheet 5a, six rollers 4 and six springs sheets 3 are arranged as its tool of Fig. 1.Star-wheel formula outer ring 1 inner headed face is evenly distributed in the groove 1a that equates with roller quantity, a roller 4 and one are housed in each groove 1a to be used for the springs sheet 3 of this roller 4 pushings to the cell wall of groove 1a, the groove bottom of groove 1a has the unidirectional raceway of roller, cover cap 2 and star-wheel formula outer ring 1 close-fitting, cover cap 2 is held roller 4 from an axial side direction, the end face of star-wheel formula outer ring 1 offers aperture 1b, bending plate 5a on the pad 5 is inserted into the aperture 1b of the end face of star-wheel formula outer ring 1, and pad 5 is held roller 4 from axial opposite side direction.Make clutch become as a whole, solved problem, made things convenient for user assembled as clutch pad 70 separation of conventional three roller types of Fig. 9.The side channel wall of the groove 1a of star-wheel formula outer ring 1 internal surface has on the cambered surface that matches with roller 4, the opposite side cell wall and offers spring positioning groove 1c; Springs sheet 3 one ends are crooked shape end 3a, the groove bottom of the spring positioning groove 1c of crooked 3a exterior edge face, shape end and star-wheel formula outer ring 1 fits, fixed springs sheet 3, solved the carrier that need be used as spring 30 as the clutch of conventional three roller types of Fig. 9 at star-wheel formula outer ring 60 dozens of inclined hole 60a pressing spring seat 20 and spring compressor 40, and cause the star-wheel 60b quantity can not be too many, the narrow limitation that clutch torque capacity promotes.The other end of springs sheet 3 is circular arc end 3b, and circular arc end 3b cooperates with roller 4 peripheries, has solved the problem of roller location.
Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not breaking away under the scope situation that the utility model aim and claim protect; can also make a lot of forms; such as; bending plate 5a on the pad 5 in the utility model; just can adopt such as protruding structures such as pin or lugs, as long as can realize cooperating, get final product so that pad and star-wheel formula outer ring are assembled together with aperture on the star-wheel formula outer ring.These all belong within the protection of the present utility model.
Claims (6)
1. multi-roller free wheel device, it comprises a plurality of rollers (4), star-wheel formula outer ring (1), cover cap (2) and pad (5), described star-wheel formula outer ring (1) inner headed face is evenly distributed in the groove (1a) that equates with roller quantity, roller (4) is positioned at groove (1a), the groove bottom of groove (1a) has the unidirectional raceway of roller, it is characterized in that: also be equipped with in the described groove (1a) and be used for roller (4) pushing springs sheet (3) to the cell wall of groove (1a), cover cap (2) and star-wheel formula outer ring (1) close-fitting, hold roller (4) from an axial side direction, pad (5) and removable the fixedlying connected in star-wheel formula outer ring (1) are held roller (4) from axial opposite side direction.
2. multi-roller free wheel device according to claim 1, it is characterized in that: the end face of described star-wheel formula outer ring (1) offers aperture (1b), and the end face that described pad (5) is gone up corresponding to star-wheel formula outer ring (1) has aperture (1b) to locate to be provided with the protruding structure that cooperates with aperture (1b).
3. multi-roller free wheel device according to claim 2 is characterized in that: described protruding structure is pin or lug.
4. multi-roller free wheel device according to claim 2 is characterized in that: described protruding structure is bending plate (5a).
5. multi-roller free wheel device according to claim 1 is characterized in that: offer spring positioning groove (1c) on the cambered surface that a side channel wall of described groove (1a) has and roller (4) matches, the opposite side cell wall; Described springs sheet (3) one ends are crooked shape end (3a), the groove bottom of the spring positioning groove (1c) of crooked (3a) exterior edge face, shape end and star-wheel formula outer ring (1) fits, the other end of springs sheet (3) is circular arc end (3b), and circular arc end (3b) cooperates with roller (4) periphery.
6. multi-roller free wheel device according to claim 1 is characterized in that: described roller (4) quantity is 6～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201542495U CN201651113U (en) | 2010-04-09 | 2010-04-09 | Multi- roller overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201542495U CN201651113U (en) | 2010-04-09 | 2010-04-09 | Multi- roller overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651113U true CN201651113U (en) | 2010-11-24 |
Family
ID=43116348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201542495U Expired - Fee Related CN201651113U (en) | 2010-04-09 | 2010-04-09 | Multi- roller overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630949A (en) * | 2017-11-01 | 2018-01-26 | 重庆市力波机械制造有限公司 | Six post roller-type overrunning clutches |
-
2010
- 2010-04-09 CN CN2010201542495U patent/CN201651113U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630949A (en) * | 2017-11-01 | 2018-01-26 | 重庆市力波机械制造有限公司 | Six post roller-type overrunning clutches |
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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: 20101124 Termination date: 20170409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |