CN2481901Y - External friction shoe freewheel clutch - Google Patents
External friction shoe freewheel clutch Download PDFInfo
- Publication number
- CN2481901Y CN2481901Y CN 01248287 CN01248287U CN2481901Y CN 2481901 Y CN2481901 Y CN 2481901Y CN 01248287 CN01248287 CN 01248287 CN 01248287 U CN01248287 U CN 01248287U CN 2481901 Y CN2481901 Y CN 2481901Y
- Authority
- CN
- China
- Prior art keywords
- hoof
- friction
- friction shoe
- interior ring
- dial
- Prior art date
- 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
Links
Abstract
The utility model relates to an external friction shoe unidirectional overrunning clutch. A friction shoe 4 of the utility model is arranged outside an inner ring 5, and one end of the friction shoe 4 is hinged with a friction shoe plate 3. A bevelled slot 4-1 is arranged on the friction shoe, and a driving pin 2 fixed and connected with a driving plate 1 is arranged in the bevelled slot. The central axes of the driving plate, the friction shoe plate and the inner ring are positioned in the same axial line K. The forward rotating driving plate presses the friction shoe to the inner ring through the driving pin, and the inner cambered surface 4-2 of the friction shoe pressed to the inner ring forms the surface contact with the outer surface of the inner ring. The clutch has the advantages of uneasy abrasion, good transmission reliability and back stopping reliability, simple structure, and low cost.
Description
The utility model relates to a kind of mechanically operated clutch that is used for.
Existing directed free wheel device generally all be under certain condition that turns to relative rotation speed by the working surface of voussoir wedging driving link and driven member, thereby realize its mono-directional overrun function.Some shortcomings below above clutch exists: the first owing to generally all adopts between voussoir and the transmission part a little contacts or line contacts, even it is the contacts of employing face that some clutches are arranged, but surface of contact is too small, in the normal engagement process, the driven member rotating speed is to accelerate to speed drive shaft gradually, so inevitably slide relative can take place between the rubbing surface, generates heat thereby make between the parts, wearing and tearing are accelerated, and influence proper functioning; It two is that voussoir in the clutch is to be in separated state under the elastic force effect of spring, and the voussoir when being in jointing state must overcome elastic force and beat or move, so its reliable transmission and check poor reliability; It three is that structure more complicated, cost are higher.
The purpose of this utility model is a kind of external friction hoof mono-directional overrun clutch of design, and it should have not easy to wear, reliable transmission and the check reliability is good, simple in structure, cost is low characteristics.
The utility model is made up of dial 1, finger 2, friction shoe disk 3, friction hoof 4, interior ring 5,5 of ring outside in friction hoof 4 is arranged on, one end and the friction shoe disk 3 of friction hoof 4 are hinged, on friction hoof 4, have a skewed slot 4-1, be provided with finger 2 in the skewed slot 4-1, finger 2 is fixedlyed connected with dial 1, the central shaft of dial 1, friction shoe disk 3 and interior ring 5 is positioned on the same axis K, the dial 1 of forward rotation by finger 2 will rub hoof 4 press in ring 5, the intrados 4-2 of ring 5 friction hoof 4 contacts with the outer surface formation face of interior ring 5 in pressing to.During work, when dial 1 clockwise rotates with respect to interior ring 5, be that dial 1 clockwise rotating speed surpasses interior ring 5, then the finger 2 on the dial 1 slides into the joint end M of skewed slot 4-1 in skewed slot 4-1, finger 2 inwardly promotes friction hoof 4 and presses to interior ring 5, and ring 5 and dial 1 rotated synchronously in the hoof 4 that rubs like this drove by frictional force.It is same when dial 1 rotates counterclockwise with respect to interior ring 5, ring 5 clockwise rotating speeds surpass dial 1 promptly, then the finger 2 on the dial 1 slides into the separating end N of skewed slot 4-1 in skewed slot 4-1, dial 1 outwards promotes friction hoof 4 and disengages with interior ring 5, at this moment, dial 1 separates with interior ring 5, keeps rotating speed separately.
The utility model is owing to friction hoof 4 contacts with interior ring 5 employing faces, and is therefore not easy to wear at work, even wearing and tearing are arranged, but can not influence its proper functioning; Because be to slide in the skewed slot 4-1 of friction hoof 4 by finger 2 to realize its joint and separation function, so its reliable transmission and check reliability are good, this clutch also has advantage simple in structure, that cost is low.
Fig. 1 is the structural representation of the utility model when being in jointing state, and Fig. 2 is the structural representation of the utility model when being in separated state, and Fig. 3 is the A-A sectional view of Fig. 1.
Embodiment: present embodiment is made up of dial 1, finger 2, friction shoe disk 3, friction hoof 4, interior ring 5.The outside of ring 5 in two friction hoof 4 are arranged on symmetrical structure, an end and the friction shoe disk 3 of friction hoof 4 are hinged.Have a skewed slot 4-1 on friction hoof 4, be provided with finger 2 in skewed slot 4-1, finger 2 is fixedlyed connected with dial 1.The central shaft of dial 1, friction shoe disk 3 and interior ring 5 is positioned on the same axis K, the skewed slot 4-1 separating end N of friction on the hoof 4 to the distance of axis K less than the distance of its joint end M apart from axis K.The dial 1 of forward rotation by finger 2 will rub hoof 4 press in the ring 5, the intrados 4-2 of the friction hoof 4 of ring 5 contacts with the outer surface formation face of interior ring 5 in pressing to, and the radius of intrados 4-2 is identical with the radius of the outer surface of interior ring 5, can increase the friction area of friction hoof 4 and interior ring 5 so to greatest extent.
Above structure can also be at least two friction hoof 4 evenly distribute and be arranged in ring 5 outside.
Claims (4)
1, external friction hoof mono-directional overrun clutch, it is by dial (1), finger (2), friction shoe disk (3), friction hoof (4), interior ring (5) is formed, the hoof (4) that it is characterized in that rubbing is arranged on the outside of interior ring (5), one end and the friction shoe disk (3) of friction hoof (4) are hinged, on friction hoof (4), have a skewed slot (4-1), be provided with finger (2) in the skewed slot (4-1), finger (2) is fixedlyed connected with dial (1), dial (1), the central shaft of friction shoe disk (3) and interior ring (5) is positioned on the same axis K, the dial of forward rotation (1) is pressed to interior ring (5) by finger (2) hoof (4) that will rub, and the intrados (4-2) of pressing to the friction hoof (4) of interior ring (5) contacts with the outer surface formation face of interior ring (5).
2, external friction hoof mono-directional overrun clutch according to claim 1 is characterized in that at least two friction hoof (4) evenly distribute and are arranged on the outside of interior ring (5).
3, according to claim 1,2 described external friction hoof mono-directional overrun clutchs, skewed slot (4-1) the separating end N on the hoof (4) that it is characterized in that rubbing to the distance of axis K less than the distance of its joint end M apart from axis K.
4, according to claim 1,2 described external friction hoof mono-directional overrun clutchs, it is characterized in that the radius of intrados (4-2) is identical with the radius of the outer surface of interior ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248287 CN2481901Y (en) | 2001-06-15 | 2001-06-15 | External friction shoe freewheel clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248287 CN2481901Y (en) | 2001-06-15 | 2001-06-15 | External friction shoe freewheel clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2481901Y true CN2481901Y (en) | 2002-03-13 |
Family
ID=33658959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01248287 Expired - Fee Related CN2481901Y (en) | 2001-06-15 | 2001-06-15 | External friction shoe freewheel clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2481901Y (en) |
-
2001
- 2001-06-15 CN CN 01248287 patent/CN2481901Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |