CN103352973B - Unidirectional belt pulley subjected to friction clutch by spring - Google Patents
Unidirectional belt pulley subjected to friction clutch by spring Download PDFInfo
- Publication number
- CN103352973B CN103352973B CN201310236346.7A CN201310236346A CN103352973B CN 103352973 B CN103352973 B CN 103352973B CN 201310236346 A CN201310236346 A CN 201310236346A CN 103352973 B CN103352973 B CN 103352973B
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- friction
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- 239000004519 grease Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention discloses a unidirectional belt pulley subjected to friction clutch by a spring, which comprises a screw thread central spindle, ball bearings, a friction spring, a friction stopper ring, a positioning sleeve and a belt hub. The screw thread central spindle extends into the belt hub; the ball bearings are respectively assembled at both ends of the screw thread central spindle and the belt hub; the friction stopper ring is of a circular ring shape; a friction sliding ring which is partially of a circular ring shape is arranged; the other part of the friction sliding ring is folded inwards by 90 degrees; the other part of the friction sliding ring is provided with a through hole; the through hole passes through the screw thread central spindle and is in positioning connection with the screw thread central spindle; the friction spring sleeves the screw thread central spindle; a gap is reserved between the friction spring and the screw thread central spindle; one end of the friction spring is arranged into an inner hole of the circular ring part of the friction sliding ring and the other end of the friction spring is arranged into an inner hole of the friction stopper ring; the inner diameters of both the friction stopper ring and the friction sliding ring are less than the outer diameter of the friction spring; an outer ring of the friction stopper ring is fixedly connected with the inner wall of the belt hub; an outer ring of the friction sliding ring is in clearance fit with the positioning sleeve; an outer ring of the clearance fit is fixedly connected with the inner wall of the belt hub.
Description
Technical field
The present invention relates to the transmission device with endless flexible element conveying rotary motion, particularly a kind of one-way belt roller of automobile generator of spring friction clutch.
Background technique
One-way belt roller of automobile generator is by some superior automobile extensive uses in the world.The maximum advantage of this product is, when belt conveyer work, vibrations can be reduced and rise and fall, especially when rotating speed changes, be reduced by the noise during work of belt connecting accessory, decrease the vibrations that belt system produces, decrease current fluctuation, extend the working life of belt and the life-span of dynamo governor.It can make generator (in annex rotation system, quality is maximum) (may only have some thousandths of second) when crankshaft deceleration remove out from torsional vibration, thus torque is declined.
And existing one-way belt roller of automobile generator complex structure, manufacture cost are high, can wide popularization and application on general-utility car.
Summary of the invention
The invention discloses a kind of one-way belt sheave of spring friction clutch, which overcome the technical problem that above-mentioned one-way belt roller exists.
The technical solution adopted for the present invention to solve the technical problems is as follows: a kind of one-way belt sheave of spring friction clutch, comprise threaded mandrel (1), ball bearing (2), friction spring (4), friction immobilisation circle (5), setting sleeve (7), belt hub (9), threaded mandrel (1) stretches into belt hub (9), both two ends are respectively equipped with ball bearing (2), and friction immobilisation circle (5) is in circular; If a local is in circular friction slip circle (6), another infolding 90 degree of friction slip circle (6), this portion has a through hole, and this through hole passes and the threaded mandrel (1) being located by connecting described; Friction spring (4) is coated at threaded mandrel (1), and both leave gap; Friction spring (4) one end loads the endoporus of friction slip circle (6) annular portion, the other end loads the endoporus of friction immobilisation circle (5), and the internal diameter of friction immobilisation circle (5) and friction slip circle (6) is all little than the external diameter of friction spring (4); The outer ring of friction immobilisation circle (5) is fixedly connected with the inwall of belt hub (9); Outer ring Spielpassung setting sleeve (7) of friction slip circle (6), the outer ring of setting sleeve (7) is fixedly connected with the inwall of belt hub (9).
Preferably, the inwall of friction slip circle (6) through hole forms the plane (6-1) of two opposite sides; Corresponding, the outer wall of threaded mandrel (1) forms two planes (1-1), is located by connecting by the laminating of both corresponding planes.
Preferably, the outer wall of threaded mandrel (1) forms stepped part, and the inner side of friction slip circle (6) is affixed on this step place; Upper clamping one locating washer (8) of threaded mandrel (1), locating washer (8) by the outside located lateral of friction slip circle (6) in threaded mandrel (1).
Preferably, ball bearing (2) inner side surface loads onto a catch (3), the internal diameter of catch (3) and the external diameter of threaded mandrel (1) leave gap, and the external diameter of catch (3) is fixedly connected with the inwall of belt hub (9).
Preferably, exterior edge face press-in dustproof gasket (10) of ball bearing (2), the outer ring of dustproof gasket (10) and the inner ring of belt hub (9) force together, and the outer ring Spielpassung of its inner ring and threaded mandrel (1).
Preferably, exterior edge face press-in dustproof gasket (10) of ball bearing (2), the outer ring of dustproof gasket (10) and the inner ring of belt hub (9) are rotatably assorted, and the outer ring drive fit of its inner ring and threaded mandrel (1).
Preferably, high/low temperature grease is injected in friction spring (4).
The one-way belt sheave of the present invention's spring friction clutch has the advantages such as structure is simple, long service life, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the structure meaning diagram of the one-way belt sheave of the present invention's spring friction clutch.
Fig. 2 is spring friction clutch mechanism map of the present invention.
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is the one-way clutch assembly figure of spring of the present invention friction.
Fig. 5 is the plan view of threaded mandrel.
Fig. 6 is the right elevation of threaded mandrel.
Fig. 7 is the plan view of friction spring.
Fig. 8 is the right elevation of friction spring.
Fig. 9 is the topology view of friction immobilisation circle.
Figure 10 is the topology view of friction slip circle.
Figure 11 is the right elevation of friction slip circle.
Figure 12 is the topology view of catch.
Figure 13 is catch plane view.
Figure 14 is the topology view of locating washer.
Figure 15 is the plane view of locating washer.
In diagram: 1-threaded mandrel, 2-ball bearing, 3-catch, 4-friction spring, 5-friction immobilisation circle, 6-friction slip circle, 7-setting sleeve, 8-locating washer, 9-belt hub, 10-dustproof gasket.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is elaborated.
As shown in figures 1-15, the one-way belt sheave of the present embodiment spring friction drive comprises threaded mandrel 1, ball bearing 2, catch 3, friction spring 4, friction immobilisation circle 5, friction slip circle 6, setting sleeve 7, locating washer 8, belt hub 9, dustproof gasket 10.
Spring friction clutch mechanism is provided with within belt hub 9, it is assembled by friction spring 4, friction immobilisation circle 5, friction slip circle 6 etc., see Fig. 2, friction immobilisation circle 5 is in circular, friction slip circle 6 local is circular, another infolding 90 degree, and this bending part has a through hole, the rounded shape removing two pieces of relative arch portion of through hole, the inside edge of arch portion is plane 6-1.Equal and both end face of the internal diameter of both annular portion of friction immobilisation circle 5, friction slip circle 6 is affixed.One end of friction spring 4 external diameter loads the endoporus of friction slip circle 6 annular portion, and the other end loads the endoporus of friction immobilisation circle 5, forms one group of spring friction clutch mechanism.The internal diameter of friction immobilisation circle 5 and friction slip circle 6 is all slightly little than the external diameter of friction spring 4, thus add the elasticity tension of friction spring 4 external diameter, two of friction spring 4 is not fixed on any parts, friction spring 4 and friction immobilisation circle 5, friction slip circle 6, by friction lock, adopt free state transferring power also to interrupt the transmission of power thus.When friction immobilisation circle 5 and friction slip circle 6 endoporus degree of finish certain higher time, friction spring 4 in a free state will rotation in that circle.Friction spring 4 two of this friction structure can alternately be separated with friction immobilisation circle 5, friction slip circle 6, and friction spring 4 is not easy fracture, greatly strengthen its working life.
The mid diameter of threaded mandrel 1 is greater than two ends diameter, its front end external diameter is pressed into a ball bearing 2, ball bearing 2 inner side surface is first loaded onto a catch 3(catch 3 and is left gap with the external diameter of threaded mandrel 1), catch 3 maintains an equal level with the step place, front end of threaded mandrel 1, reinstall above-mentioned spring friction clutch mechanism, the internal diameter of friction spring 4 and the external diameter of threaded mandrel 1 leave gap.The in-house friction slip circle 6 of spring friction clutch, its endoporus two place plane 6-1 is set on two conocave plane 1-1 of threaded mandrel 1 the other end outer ring.Friction slip circle 6 external diameter loads a setting sleeve 7, leaves gap between the two.One end face of setting sleeve 7 and one end of friction immobilisation circle 5 are affixed, catch 3 after other end loads one, rear catch 3 is in friction slip circle 6 bending part (towards threaded mandrel 1 rear end) side, the internal diameter of rear catch 3 loads a locating washer 8, locating washer 8 is stuck in threaded mandrel 1, and friction slip circle 6 bending part located lateral is affixed on the step place of threaded mandrel 1 rear end by it inside threaded mandrel 1(friction slip circle 6).Gap is left between rear catch 3 and locating washer 8.
The rear end of threaded mandrel 1 is pressed into a ball bearing 2 again, and ball bearing 2 internal diameter is tightly pressed into the rear end external diameter of threaded mandrel 1, and the inner side surface of ball bearing 2 and rear catch 3 and locating washer 8 are affixed, and form one group of one-way clutch assembly.
Together with together with the external diameter of aforementioned one-way clutch assembly is pressed on the internal diameter of belt hub 9, namely the outer ring of ball bearing 2, catch 3, friction immobilisation circle 5, setting sleeve 7 is all pressed on the inner ring of belt hub 9; Then, ball bearing 2 exterior edge face, two, front and back is pressed into two dustproof gaskets 10.The outer ring of two dustproof gaskets 10 and the inner ring of belt hub 9 force together, and the outer ring Spielpassung of its inner ring and threaded mandrel 1, or otherwise namely the outer ring of two dustproof gaskets 10 coordinates with the interior ring gap (rotation) of belt hub 9, and the outer ring drive fit of its inner ring and threaded mandrel 1.
During assembling, threaded mandrel 1 front step place is pressed into a ball bearing 2, the inner paperback of ball bearing 2 enters a catch 3 and again spring friction clutch mechanism is sleeved on outside threaded mandrel 1, be affixed having the Transverse plane of a friction immobilisation circle 5 and catch 3 plane in spring friction clutch mechanism, in the middle part of threaded mandrel 1, outer wall two plane 1-1 matches with friction slip circle endoporus two place plane 6-1, friction slip circle 6 external diameter loads a setting sleeve 7, in setting sleeve 7, boring ratio friction slip circle 6 external diameter is large, and friction slip circle 6 can rotate at setting sleeve 7 internal diameter.Catch 3 after setting sleeve 7 the other end plane loads onto one, rear catch 3 endoporus loads a locating washer 8, then another ball bearing 2 endoporus is affixed from the press-in of threaded mandrel 1 rear end external diameter with rear washer 3, locating washer 8 plane, forms one group of one-way clutch assembly.Together with the external diameter of one-way clutch assembly is pressed on the internal diameter of belt hub 9, two, front and back ball bearing 2 end face is pressed into two dustproof gaskets.
When the torsion rotation direction of friction immobilisation circle 5 and friction slip circle 6 is contrary with the coil direction of friction spring 4, the external diameter of friction spring 4 will produce expansionary force, produces frictional force and occur lock state with the internal diameter of friction immobilisation circle 5, friction slip circle 6.When friction immobilisation circle 5, friction slip circle 6 torsion rotation direction are identical with the coil direction of friction spring 4, the external diameter of friction spring 4 will deformation retract, remove with the frictional force of friction immobilisation circle 5, friction slip circle 6 internal diameter and define free state, interrupting the transmission of power thus.Inject high/low temperature grease to friction spring 4 internal diameter, make contact position rolling lubrication, lubricate.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and not as limitation of the invention, as long as within the scope of the invention, all will drop on protection scope of the present invention to the change of above embodiment, distortion.
Claims (7)
1. the one-way belt sheave with spring friction clutch, comprise threaded mandrel (1), ball bearing (2), friction spring (4), friction immobilisation circle (5), setting sleeve (7), belt hub (9), threaded mandrel (1) stretches into belt hub (9), both two ends are respectively equipped with ball bearing (2), and friction immobilisation circle (5) is in circular; It is characterized in that: establish a local in circular friction slip circle (6), another infolding 90 degree of friction slip circle (6), this portion has a through hole, and this through hole passes and the threaded mandrel (1) being located by connecting described; Friction spring (4) is coated at threaded mandrel (1), and both leave gap; Friction spring (4) one end loads the endoporus of friction slip circle (6) annular portion, the other end loads the endoporus of friction immobilisation circle (5), and the internal diameter of friction immobilisation circle (5) and friction slip circle (6) is all little than the external diameter of friction spring (4); The outer ring of friction immobilisation circle (5) is fixedly connected with the inwall of belt hub (9); Outer ring Spielpassung setting sleeve (7) of friction slip circle (6), the outer ring of setting sleeve (7) is fixedly connected with the inwall of belt hub (9).
2. one-way belt sheave as claimed in claim 1, is characterized in that: the inwall of described friction slip circle (6) through hole forms the plane (6-1) of two opposite sides; Corresponding, the outer wall of threaded mandrel (1) forms two planes (1-1), is located by connecting by the laminating of both corresponding planes.
3. one-way belt sheave as claimed in claim 1 or 2, is characterized in that: the outer wall of threaded mandrel (1) forms stepped part, and the inner side of friction slip circle (6) is affixed on this step place; Upper clamping one locating washer (8) of threaded mandrel (1), locating washer (8) by the outside located lateral of friction slip circle (6) in threaded mandrel (1).
4. one-way belt sheave as claimed in claim 1, it is characterized in that: ball bearing (2) inner side surface loads onto a catch (3), the internal diameter of catch (3) and the external diameter of threaded mandrel (1) leave gap, and the external diameter of catch (3) is fixedly connected with the inwall of belt hub (9).
5. the one-way belt sheave as described in claim 1 or 2 or 4, it is characterized in that: exterior edge face press-in dustproof gasket (10) of ball bearing (2), the outer ring of dustproof gasket (10) and the inner ring of belt hub (9) force together, and the outer ring Spielpassung of its inner ring and threaded mandrel (1).
6. the one-way belt sheave as described in claim 1 or 2 or 4, it is characterized in that: exterior edge face press-in dustproof gasket (10) of ball bearing (2), the outer ring of dustproof gasket (10) and the inner ring of belt hub (9) are rotatably assorted, and the outer ring drive fit of its inner ring and threaded mandrel (1).
7. one-way belt sheave as claimed in claim 1, is characterized in that: inject high/low temperature grease in friction spring (4).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310236346.7A CN103352973B (en) | 2013-06-13 | 2013-06-13 | Unidirectional belt pulley subjected to friction clutch by spring |
| US14/413,440 US9611928B2 (en) | 2013-06-13 | 2013-08-22 | Unidirectional coupling damping pulley |
| PCT/CN2013/082085 WO2014198086A1 (en) | 2013-06-13 | 2013-08-22 | Unidirectionally coupled damping pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310236346.7A CN103352973B (en) | 2013-06-13 | 2013-06-13 | Unidirectional belt pulley subjected to friction clutch by spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103352973A CN103352973A (en) | 2013-10-16 |
| CN103352973B true CN103352973B (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310236346.7A Expired - Fee Related CN103352973B (en) | 2013-06-13 | 2013-06-13 | Unidirectional belt pulley subjected to friction clutch by spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103352973B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074951B (en) * | 2014-07-11 | 2017-05-03 | 台州宝茨汽车零部件有限公司 | One-way clutch belt pulley |
| CN108087450A (en) * | 2017-12-25 | 2018-05-29 | 台州振鹏单向器有限公司 | A kind of damper pulley of roller type one way coupling |
| CN108317235B (en) * | 2018-03-21 | 2023-07-14 | 倪景宁 | Double-coupling type automobile generator unidirectional belt pulley |
| CN108869697A (en) * | 2018-06-26 | 2018-11-23 | 倪景宁 | A kind of manifold type single-way belt pulley of automobile generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6083130A (en) * | 1997-05-07 | 2000-07-04 | Litens Automotive Partnership | Serpentine drive system with improved over-running alternator decoupler |
| CN101936348A (en) * | 2010-09-07 | 2011-01-05 | 江苏南方轴承股份有限公司 | Belt pulley of over-travel alternating current generator decoupler |
| CN102817936A (en) * | 2012-09-05 | 2012-12-12 | 李志敏 | Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley |
| CN203363075U (en) * | 2013-06-13 | 2013-12-25 | 李志敏 | One-way belt pulley using spring friction for clutch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7878315B2 (en) * | 2006-04-14 | 2011-02-01 | Ntn Corporation | Spring clutch |
| JP2008232329A (en) * | 2007-03-22 | 2008-10-02 | Jtekt Corp | Pulley unit |
| US8678157B2 (en) * | 2011-05-25 | 2014-03-25 | Gates Corporation | Isolator decoupler |
-
2013
- 2013-06-13 CN CN201310236346.7A patent/CN103352973B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6083130A (en) * | 1997-05-07 | 2000-07-04 | Litens Automotive Partnership | Serpentine drive system with improved over-running alternator decoupler |
| CN101936348A (en) * | 2010-09-07 | 2011-01-05 | 江苏南方轴承股份有限公司 | Belt pulley of over-travel alternating current generator decoupler |
| CN102817936A (en) * | 2012-09-05 | 2012-12-12 | 李志敏 | Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley |
| CN203363075U (en) * | 2013-06-13 | 2013-12-25 | 李志敏 | One-way belt pulley using spring friction for clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103352973A (en) | 2013-10-16 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151130 Address after: 317602 Kanmen science and Technology Industrial Park, Taizhou, Zhejiang, China, Yuhuan County Patentee after: TAIZHOU ZHENPENG OVERRUNING CLUTCH Co.,Ltd. Address before: Yuhuan County science and Technology Industrial Park in Kanmen city of Taizhou province Zhejiang 317602 Taizhou Zhenpeng overruning clutch Co. Ltd. Patentee before: Li Zhimin |
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| 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: 20150422 |