CN2603243Y - Overdrive clutch with double-retainer - Google Patents
Overdrive clutch with double-retainer Download PDFInfo
- Publication number
- CN2603243Y CN2603243Y CN 03237184 CN03237184U CN2603243Y CN 2603243 Y CN2603243 Y CN 2603243Y CN 03237184 CN03237184 CN 03237184 CN 03237184 U CN03237184 U CN 03237184U CN 2603243 Y CN2603243 Y CN 2603243Y
- Authority
- CN
- China
- Prior art keywords
- retainer
- free wheel
- pair
- wheel device
- fixture block
- 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
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- Mechanical Operated Clutches (AREA)
Abstract
The utility model relates to a clutch, in particular to a double cages installed overrunning clutch. The utility model comprises an interior ring provided with an external slideway, and an exterior ring provided with an internal slideway. A plurality of fixture blocks is arranged between the internal slideway and the external slideway. The utility model is characterized in that the fixture blocks are non-conventional types; the utility model is provided with cirque double cages, the non-conventional type fixture blocks are relatively fixed in the cirque internal slideway and the cirque external slideway by the cirque double cages. The utility model has the advantages of ensuring the even synchronism bearing of the non-conventional type fixture blocks, avoiding attacking and under stress unevenly, and increasing the carrying capacity; reducing the wear of the overrunning clutch and prolonging use time.
Description
Technical field
The utility model relates to a kind of clutch, particularly a kind of pair of retainer free wheel device.
Background technique
Free wheel device claims overrunning clutch or unilateral bearing again, be a kind of can only be from a device that turns to transmitted power.When the speed of the speed of active raceway and driven raceway is identical, carry out transmission.And when the speed of raceway initiatively during less than driven raceway, driven raceway can freely rotate.
Free wheel device is widely used in intermittent drive mechanism, mining machinery, spanner of aircraft, tank, military trucks, offroad vehicle, loader, fork truck, automobile, motorcycle, bicycle, lathe, printing machinery, textile manufacturing machine, nut molding machine, automatic production line etc.
Traditional free wheel device is shown in Fig. 7 A, Fig. 7 B, this free wheel device is a roller bearing, cylindrical rollers 12 is installed on the retainer 13, again with its integral installation between interior ring 14 and outer shroud 11, on the inner slide of interior ring 14 outer circumferential faces, do not have trigonometric form recess 15, in the part recess, be provided with spring thrust mechanism 16.Like this structure, when encircling rotating speed greater than the outer shroud rotating speed in when interior ring 14 is done clockwise direction and rotated with respect to outer shroud 11, unilateral bearing can not self-locking, this unidirectional Roller Bearing Clutch be in " from " state; Do when rotating counterclockwise at interior ring 14, when the ring rotating speed is less than the outer shroud rotating speed promptly, these rollers 12 just are fastened between interior ring 14 and the outer shroud 11, no longer rotate, make the power of outer shroud 11 import interior ring 14 into by the blocking effect, at this moment free wheel device is in " closing " state, and ring 14 is exported with the power link of outer shroud 11 in realizing.
Because the calibration of cam ramp can not be synchronous with the calibration in retainer hole, thereby this roller is stressed very inhomogeneous, and very easily make the overload of indivedual rollers and damage, there is spring to press to the inclined-plane even be improved to each roller, but under the torsional vibration effect, still do not have compulsory positioning action, thus be still very unreliable.Next is that torque capacity is very limited, and because of traditional free wheel device takes up room greatlyyer, its torque capacity is very limited.
As shown in Figure 8, it is another kind of known free wheel device, be the single retainer free wheel device of fixture block formula, the single retainer free wheel device of this fixture block formula is because of indivedual fixture blocks in the clutch can not strictly remain on sync bit, under the torsional oscillation loading, when some fixture block broke away load direction and is in disengaged direction, wherein some fixture block but rolled, thereby clutch can not be worked, even it is also little to act on the moment of torsion of clutch, also there is this fault to take place.
The model utility content
Technical problem to be solved in the utility model is, at the above-mentioned deficiency of prior art, and provides a kind of fixture block stand under load that makes to be evenly distributed, and makes total fixture block have higher torque capacity, and has two retainer free wheel devicees of higher safety coefficient.
Provided by the utility model pair of retainer free wheel device is achieved in that
A kind of pair of retainer free wheel device comprises interior ring with external slideway and the outer shroud with inner slide, is provided with a plurality of fixture blocks between inside and outside slideway, it is characterized in that:
These a plurality of fixture blocks are special-shaped fixture blocks; Be provided with the two retainers of ring, described special-shaped fixture block by the two retainer relative fixed of ring in described annular in the external slideway.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents:
This pair retainer comprise interior retainer, outer retainer and be installed on the clip on the outer retainer and be installed in friction reed on the retainer.
Be provided with the spring band that is evenly equipped with a plurality of perforation between the inside and outside retainer of this pair retainer, these a plurality of special-shaped fixture blocks are inserted in the perforation of this spring band.
This abnormal shape fixture block is the cylinder of " 8 " font section.
This abnormal shape fixture block is to favour radially just asks arrangement.
Distance in " 8 " font section height of this abnormal shape fixture block is slightly larger than between external slideway.
This friction reed is a plurality of.
This clip is a plurality of.
Free wheel device of the present utility model comprises circular interior retainer, outer retainer, special-shaped fixture block, inside and outside raceway, be provided with spring band between the two retainers of two rings, with the fixture block relative fixed between two retainers and spring band, and the groove of outer retainer is provided with clip, is provided with the friction reed on interior retainer.
Advantage of the present utility model is:
Acting in conjunction because of two retainers and spring band and friction reed and clip has guaranteed that the synchronism stand under load of special-shaped fixture block is even, has avoided the phenomenon of impact and discontinuity, holds the sanction ability and improves greatly.Simultaneously also reduced the wearing and tearing of free wheel device, and can life-saving.
For structure of the present utility model, feature and effect thereof are had further understanding, enumerate specific embodiment below and also in conjunction with the accompanying drawings the utility model is described in further detail.
Description of drawings
Figure 1A, Figure 1B are sectional drawings of the present utility model.
Fig. 2 is the sectional view of the special-shaped fixture block of the utility model.
Fig. 3 is the stereogram of the utility model spring band.
Fig. 4 is the stereogram of the utility model clip.
Fig. 5 A, Fig. 5 B are the stereograms of the utility model friction reed.
Fig. 6 is the assembling stereogram of interior retainer, outer retainer, spring band, clip, friction reed.
Fig. 7 A, Fig. 7 B are the working state figures of known roller overrunning clutch.
Fig. 8 is the part sectioned view of the single retainer free wheel device of Ka Kanshi.
Embodiment
Shown in Figure 1A, the two retainer free wheel devicees of the utility model comprise: have the interior ring 10 and outer shroud 20 of external slideway, between inside and outside slideway, be provided with a plurality of fixture blocks with inner slide, wherein:
These a plurality of fixture blocks are special-shaped fixture blocks 4; Be provided with the two retainers of ring, described special-shaped fixture block 4 by the two retainer relative fixed of ring in described annular in the external slideway.The utility model adopts two retainers and special-shaped fixture block to replace former roller bearing structure and the single retainer structure of fixture block formula.This pair retainer is made of outer retainer 2, interior retainer 5, and the cross section of this abnormal shape fixture block 4 is the cylinder that is " 8 " font as shown in Figure 2, and the height of this figure of eight section is slightly larger than the distance between interior external slideway.This special-shaped fixture block 4 is installed between (as shown in Figure 6) inside and outside retainer 5,2, and with spring band 10 with special-shaped fixture block 4 relative fixed between inner and outer rings; Be evenly equipped with a plurality of perforation on this spring band 10, these a plurality of special-shaped fixture blocks are inserted in the perforation of this spring band 10.This abnormal shape fixture block 4 is packed in the mode that tilts, be tilted to the right among the figure, friction reed 18 is installed on the interior retainer, clip 17 is installed on the outer retainer, the free wheel device of this structure is done when clockwise rotating with respect to outer shroud 20 at interior ring 19, interior ring 19 drives friction reeds 18, retainer 5 in friction reed 18 drives, the inner edge that interior retainer 5 drives all fixture blocks 4 moves right, upper limb outer shroud 20 and outside under the effect of retainer 2 and clip 17, do not move relatively, along with the motion of inner edge, this abnormal shape fixture block 4 by gradually by tilting to radially, at this moment because of the height of Bian piece 4 be slightly larger than in distance between external slideway, and inside and outside slideway blocks special-shaped fixture block 4, by the blocking effect of special-shaped fixture block 4, with inner slide 8, external slideway 9 tightens simultaneously, thereby outer shroud 20 is rotated with interior ring 19, with outputting power, free wheel device is in " closing " state.
When interior ring 19 is done when rotating counterclockwise with respect to outer shroud 20, interior ring 19 drives friction reeds 18, retainer 5 in friction reed 18 drives, interior retainer 5 drives all fixture blocks and is tilted to the right, so its inner rim is moved to the left with interior ring 19, heeling condition will continue to keep, inside and outside slideway 8,9 can slide by special-shaped relatively fixture block 4, and therefore, external slideway 9 is not tightened, can not rotate with interior ring 19, at this moment free wheel device be in " from " state.
For the moment of torsion that each special-shaped fixture block 4 is born is tried one's best evenly, between inside and outside retainer, there is not spring band 10, as shown in Figure 3, effect by this spring band 10, transmitting torque between two retainers 2,5 and special-shaped fixture block 4, the problem of the special-shaped fixture block blocking synchronously that causes with the error of eliminating because of retainer.
For make fixture block 4 inner edge rapid movements with realize fast " from " or " closing ", friction reed 18 is housed, shown in Fig. 5 A, 5B in interior retainer 5.For the frictional force between the inner slide 8 that increases outer retainer 2 and outer shroud 20, on the retainer 2 clip 17 is housed outside, as shown in Figure 4, to guarantee outer retainer 2 and inner slide 8 relative fixed.
Use the free wheel device of said structure, have the bearing capacity height than traditional single retainer clutch, obviously prolong working life, and reliability also improves a lot.
Claims (8)
1, a kind of pair of retainer free wheel device comprises interior ring with external slideway and the outer shroud with inner slide, is provided with a plurality of fixture blocks between inside and outside slideway, it is characterized in that:
These a plurality of fixture blocks are special-shaped fixture blocks; Be provided with the two retainers of ring, described special-shaped fixture block by the two retainer relative fixed of ring in described annular in the external slideway.
2, according to claim 1 pair of retainer free wheel device is characterized in that: this pair retainer comprise interior retainer, outer retainer and be installed on the clip on the outer retainer and be installed in friction reed on the retainer.
3, according to claim 2 pair of retainer free wheel device is characterized in that: be provided with the spring band that is evenly equipped with a plurality of perforation between the inside and outside retainer of this pair retainer, these a plurality of special-shaped fixture blocks are inserted in the perforation of this spring band.
4, according to claim 1 pair of retainer free wheel device is characterized in that: this abnormal shape fixture block is the " 8 " cylinders of font section.
5, according to claim 4 pair of retainer free wheel device is characterized in that: this abnormal shape fixture block is to favour radially just asks arrangement.
6, according to claim 4 pair of retainer free wheel device is characterized in that: the distance in " 8 " font section height of this abnormal shape fixture block is slightly larger than between external slideway.
7, according to claim 2 pair of retainer free wheel device is characterized in that: this friction reed is a plurality of.
8, according to claim 2 pair of retainer free wheel device, it is characterized in that: this clip is a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237184 CN2603243Y (en) | 2003-02-10 | 2003-02-10 | Overdrive clutch with double-retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237184 CN2603243Y (en) | 2003-02-10 | 2003-02-10 | Overdrive clutch with double-retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2603243Y true CN2603243Y (en) | 2004-02-11 |
Family
ID=34167230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03237184 Expired - Fee Related CN2603243Y (en) | 2003-02-10 | 2003-02-10 | Overdrive clutch with double-retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2603243Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101228364B (en) * | 2005-07-21 | 2010-06-09 | 谢夫勒两合公司 | Sleeve/roller-shaped free-wheel with a cage for the pins or rollers |
| WO2024087943A1 (en) * | 2022-10-24 | 2024-05-02 | 洛阳轴承研究所有限公司 | Dual-retainer overrunning clutch |
-
2003
- 2003-02-10 CN CN 03237184 patent/CN2603243Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101228364B (en) * | 2005-07-21 | 2010-06-09 | 谢夫勒两合公司 | Sleeve/roller-shaped free-wheel with a cage for the pins or rollers |
| WO2024087943A1 (en) * | 2022-10-24 | 2024-05-02 | 洛阳轴承研究所有限公司 | Dual-retainer overrunning clutch |
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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 |