CN103867604A - Roller type overrunning clutch - Google Patents
Roller type overrunning clutch Download PDFInfo
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- CN103867604A CN103867604A CN201210527430.XA CN201210527430A CN103867604A CN 103867604 A CN103867604 A CN 103867604A CN 201210527430 A CN201210527430 A CN 201210527430A CN 103867604 A CN103867604 A CN 103867604A
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Abstract
A roller type overrunning clutch comprises an outer ring and a star wheel of a driving portion and a roller arranged between the outer ring and the star wheel; the friction surface of the roller is provided with at least one annular groove; the friction surfaces of the outer ring and the star wheel are the surfaces which are matched with the annular groove. According to the roller type overrunning clutch, the friction surface is provided with the groove and accordingly the friction area is increased, the large friction force can be produced, the size of a friction clutch can be reduced, and the cost of the friction clutch can be reduced. When an annular V-shaped groove is matched with annular V-shaped protruding ribs and the annular V-shaped groove completely abuts against the annular V-shaped protruding ribs, namely that the included angles of the annular V-shaped groove and the annular V-shaped protruding ribs are the same, a numerical value of the average width of the V-shaped protruding ribs is slightly larger than that of the average width of the V-shaped groove, the top ends of the V-shaped protruding ribs are circular arcs, and accordingly the large clamping force can be produced by the groove as long as the V-shaped protruding ribs slightly move forward and accordingly the friction force can be effectively transmitted, the size of the friction clutch can be further reduced, and the cost of the friction clutch can be reduced. The condition that an annular trapezoidal groove is matched with annular trapezoidal protruding ribs is the same as the condition that the annular V-shaped groove is matched with the annular V-shaped protruding ribs.
Description
Technical field
The vitals that the present invention relates to transmission of power and separation function between prime mover and working machine or between machine intimate driving shaft and driven shaft is exactly specifically a kind of roller-type overrunning clutch.
Background technique
Free wheel device is the basic part occurring along with the development of electromechanical integrated product, and it is to be the conversion that utilizes velocity variations or the sense of rotation of driving and driven part for it, has the device of clutch function voluntarily.
Free wheel device is divided into Wedge type over running clutch, roller-type overrunning clutch and ratchet type overrunning clutch.
Wedge overrunning clutch replaces roller as wedging part with deformed wedge, is a kind of clutch with voussoir and inside and outside raceway composition friction pair.When between interior ring, outer shroud and voussoir, without relative movement, turn to identically, rotating speed equates, could transmitting torque, otherwise be relative sliding, this sliding mode that does not pass fast torque is called and surmounts.Wedge overrunning clutch mainly contain basic model, without inner ring type and band bearing type.Its Connecting format is divided into key connection, gear connection, belt wheel connection, sprocket wheel connection, bolt connection etc.
Roller-type overrunning clutch root in it yoke (star-wheel) position difference be divided into two kinds of out star wheel and star-wheels, so-called yoke refers to the conjugate planes of cylinder and cylindrical hole, and star-wheel is the part with the groove that holds roller.For the ease of processing with guarantee machining accuracy, being widely adopted of star-wheel formula.Press the shape difference of star-wheel working surface, can be divided into again three kinds, plane, logarithm helicoid type and eccentric cylinder type etc.Wherein plane processing is simple, be widely used, but its wedge feeler does not change and changes with the difference of roller wearing and tearing and contact position, but process more difficult; The processing complexity of eccentric cylinder, usability, life-span all occupy between the former two.
The key of roller-type overrunning clutch is, when between interior ring, outer shroud and roller, because frictional force is without relative movement, turns to identically, and rotating speed equates, could transmitting torque, so the frictional force producing between ring, outer shroud and voussoir in increasing is crucial.
Summary of the invention
In order to increase the frictional force producing between interior ring, outer shroud and voussoir, the invention provides a kind of roller-type overrunning clutch.
The present invention is achieved in that a kind of roller-type overrunning clutch, comprises outer shroud, star-wheel and the roller therebetween of active part, and the rubbing surface of roller arranges at least one annular ditch groove, and the rubbing surface of outer shroud, star-wheel is the face matching with annular ditch groove.
Described roller-type overrunning clutch, described annular ditch groove is ring-type curved surface groove, the rubbing surface of outer shroud, star-wheel is the ring-type curved surface convex tendon matching with ring-type curved surface groove.
Described roller-type overrunning clutch, described ring-type curved surface groove is ring-type arc groove, the rubbing surface of outer shroud, star-wheel is the ring-type circular arc convex tendon face matching with ring-type arc groove.
Described roller-type overrunning clutch, described annular ditch groove is ring-type V-shape groove, the rubbing surface of outer shroud, star-wheel is the ring-type V-shape convex tendon face matching with ring-type V-shape groove.
Described roller-type overrunning clutch, the numerical value of described V-shape convex tendon mean breadth is greater than the numerical value of V-shape groove mean breadth, and V-shape convex tendon top is circular arc.
Described roller-type overrunning clutch, described annular ditch groove is ring-type trapezoidal groove, the rubbing surface of outer shroud, star-wheel is the trapezoidal convex tendon face of ring-type matching with ring-type trapezoidal groove.
Described roller-type overrunning clutch, the numerical value of the mean breadth of described trapezoidal convex tendon is greater than the numerical value of trapezoidal groove mean breadth.
Described roller-type overrunning clutch, described annular ditch groove quantity is one of 2,3,4,5,6.
Described roller-type overrunning clutch, described annular ditch groove is arranged on the rubbing surface of outer shroud, star-wheel, and described ring-type convex tendon is arranged on the rubbing surface of roller.
The rubbing surface of clutch of the present invention is established groove, has increased friction area, just can produce large frictional force, just can reduce the volume of friction clutch, reduces the cost of friction clutch.Coordinate ring-type V-shape convex tendon for ring-type V-shape groove, in the time that ring-type V-shape groove is adjacent to completely with ring-type V-shape convex tendon (the two angle is identical), because the numerical value of V-shape convex tendon mean breadth is less times greater than the numerical value of V-shape groove mean breadth, V-shape convex tendon top is circular arc, V-shape convex tendon moves forward a little again, and groove just produces huge clamping force, can effectively transmit frictional force, further reduce the volume of friction clutch, reduce the cost of friction clutch.Ring-type trapezoidal groove coordinates the situation of the trapezoidal convex tendon of ring-type to coordinate the situation of ring-type V-shape convex tendon the same with ring-type V-shape groove.
Accompanying drawing explanation
Fig. 1 is roller-type overrunning clutch plan view.
Fig. 2 is roller-type overrunning clutch curved surface rubbing surface structural representation.
Fig. 3 is roller-type overrunning clutch circular arc rubbing surface structural representation.
Fig. 4 is roller-type overrunning clutch V font rubbing surface structural representation.
Fig. 5 is the trapezoidal rubbing surface structural representation of roller-type overrunning clutch.
Embodiment
As Fig. 1-5, a kind of roller-type overrunning clutch, comprises outer shroud 1, star-wheel 2 and the roller therebetween 3 of active part, and the rubbing surface of roller arranges at least one annular ditch groove, and the rubbing surface of outer shroud, star-wheel is the face matching with annular ditch groove.
Described roller-type overrunning clutch, described annular ditch groove is ring-type curved surface groove 31, the rubbing surface of outer shroud is that the face ring-type curved surface convex tendon 11 matching with ring-type curved surface groove, the rubbing surface of star-wheel are the ring-type curved surface convex tendon 21 matching with ring-type curved surface groove.
Described roller-type overrunning clutch, described ring-type curved surface groove is ring-type arc groove 32, and the rubbing surface of outer shroud is that the ring-type circular arc convex tendon face 12 matching with ring-type arc groove, the rubbing surface of star-wheel are the ring-type circular arc convex tendon face 22 matching with ring-type arc groove.
Described roller-type overrunning clutch, described annular ditch groove is ring-type V-shape groove 33, and the rubbing surface of outer shroud is that the ring-type V-shape convex tendon face 13 matching with ring-type V-shape groove, the rubbing surface of star-wheel are the ring-type V-shape convex tendon face 23 matching with ring-type V-shape groove.
Described roller-type overrunning clutch, the numerical value of described V-shape convex tendon mean breadth is greater than the numerical value of V-shape groove mean breadth, and V-shape convex tendon top is circular arc.
Described roller-type overrunning clutch, described annular ditch groove is ring-type trapezoidal groove 34, and the rubbing surface of outer shroud is that the trapezoidal convex tendon face 14 of ring-type matching with ring-type trapezoidal groove, the rubbing surface of star-wheel are the trapezoidal convex tendon face 24 of ring-type matching with ring-type trapezoidal groove.
Described roller-type overrunning clutch, the numerical value of the mean breadth of described trapezoidal convex tendon is greater than the numerical value of trapezoidal groove mean breadth.
Described roller-type overrunning clutch, described annular ditch groove quantity is one of 2,3,4,5,6.
Described roller-type overrunning clutch, described annular ditch groove is arranged on the rubbing surface of outer shroud, star-wheel, and described ring-type convex tendon is arranged on the rubbing surface of roller.
Claims (9)
1. a roller-type overrunning clutch, comprises and it is characterized in that outer shroud, star-wheel and the roller therebetween of active part: the rubbing surface of roller arranges at least one annular ditch groove, the rubbing surface of outer shroud, star-wheel is the face matching with annular ditch groove.
2. roller-type overrunning clutch as claimed in claim 1, is characterized in that: described annular ditch groove is ring-type curved surface groove, and the rubbing surface of outer shroud, star-wheel is the ring-type curved surface convex tendon matching with ring-type curved surface groove.
3. roller-type overrunning clutch as claimed in claim 2, is characterized in that: described ring-type curved surface groove is ring-type arc groove, and the rubbing surface of outer shroud, star-wheel is the ring-type circular arc convex tendon face matching with ring-type arc groove.
4. roller-type overrunning clutch as claimed in claim 1, is characterized in that: described annular ditch groove is ring-type V-shape groove, and the rubbing surface of outer shroud, star-wheel is the ring-type V-shape convex tendon face matching with ring-type V-shape groove.
5. roller-type overrunning clutch as claimed in claim 4, is characterized in that: the numerical value of described V-shape convex tendon mean breadth is greater than the numerical value of V-shape groove mean breadth, and V-shape convex tendon top is circular arc.
6. roller-type overrunning clutch as claimed in claim 1, is characterized in that: described annular ditch groove is ring-type trapezoidal groove, and the rubbing surface of outer shroud, star-wheel is the trapezoidal convex tendon face of ring-type matching with ring-type trapezoidal groove.
7. roller-type overrunning clutch as claimed in claim 6, is characterized in that: the numerical value of the mean breadth of described trapezoidal convex tendon is greater than the numerical value of trapezoidal groove mean breadth.
8. the roller-type overrunning clutch as described in one of claim 1-8, is characterized in that: described annular ditch groove quantity is one of 2,3,4,5,6.
9. the roller-type overrunning clutch as described in one of claim 1-8, is characterized in that: described annular ditch groove is arranged on the rubbing surface of outer shroud, star-wheel, described ring-type convex tendon is arranged on the rubbing surface of roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210527430.XA CN103867604A (en) | 2012-12-10 | 2012-12-10 | Roller type overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210527430.XA CN103867604A (en) | 2012-12-10 | 2012-12-10 | Roller type overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103867604A true CN103867604A (en) | 2014-06-18 |
Family
ID=50906486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210527430.XA Pending CN103867604A (en) | 2012-12-10 | 2012-12-10 | Roller type overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103867604A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106508308A (en) * | 2016-11-27 | 2017-03-22 | 苏州君丰辰电子科技有限公司 | Two-body logistics granary |
| CN108223232A (en) * | 2016-12-21 | 2018-06-29 | 索恩格汽车德国有限责任公司 | Starter and its one-way clutch and outer race |
-
2012
- 2012-12-10 CN CN201210527430.XA patent/CN103867604A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106508308A (en) * | 2016-11-27 | 2017-03-22 | 苏州君丰辰电子科技有限公司 | Two-body logistics granary |
| CN108223232A (en) * | 2016-12-21 | 2018-06-29 | 索恩格汽车德国有限责任公司 | Starter and its one-way clutch and outer race |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |