CN203413096U - One-way coupling damping belt pulley - Google Patents
One-way coupling damping belt pulley Download PDFInfo
- Publication number
- CN203413096U CN203413096U CN201320424410.XU CN201320424410U CN203413096U CN 203413096 U CN203413096 U CN 203413096U CN 201320424410 U CN201320424410 U CN 201320424410U CN 203413096 U CN203413096 U CN 203413096U
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- friction
- spring
- ring
- threaded mandrel
- damping
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Abstract
The utility model discloses a one-way coupling damping belt pulley which comprises a threaded mandrel, wherein the threaded mandrel extends into a belt hub, the inner wall of the belt hub is pressed in a friction stopper ring and a locating sleeve, and a convex ring is formed by the outer diameter of the mandrel and is provided with a step; a gasket is sleeved outside the mandrel, and forms a step; a damping spring is sleeved outside the mandrel, one end of the damping spring supports against the convex ring of the mandrel, and the end face of the one end of the damping spring supports against the step of the convex ring; the other end of the damping spring supports against the gasket, the end face of the one end of the other end of the damping spring supports against the step of the gasket; a friction sliding ring is sleeved outside and rotatably matched with the gasket; the damping spring is sleeved outside the friction spring, one end of the friction spring is installed in the friction sliding ring, the other end of the friction spring is installed in the friction stopper ring, and the outer wall of the friction sliding ring is in clearance fit with the locating sleeve; inner diameters of the friction stopper ring and the friction sliding ring are smaller than the outer diameter of the friction spring so that the tension of the spring is increased; the friction spring, the friction stopper ring and the friction sliding ring are locked through friction, and the friction spring, the friction stopper ring and the friction sliding ring can be alternatively separated.
Description
Technical field
The utility model belongs to the unidirectional couplings damper pulley manufacturing technology field that automobile current generator is used, and specially refers to the unidirectional couplings damper mechanism by spring friction catch, is specially the unidirectional couplings damper pulley of spring friction catch.
Background technique
One-way belt roller of automobile generator is by some high-grade automobile extensive uses in the world.When generator is during via the crank-driven of the motor car engines such as belt, pulley unit, due to the circulation of aspirating stroke, compression stroke, burning and expansion stroke and exhaust stroke, on belt pulley, rotating shaft and belt pulley, may produce excessive rotating torques (moment of torsion) and tension force.Under the instantaneous downward trend of rotation of bent axle, alternator shaft has very large the moment of inertia, tension and generation tension variation in the direction that belt produces in torque, and this may cause belt overload and the working life of reduction belt.
In the prior art, there is a kind of OAD spring friction unidirectional couplings buffer dynamo belt pulley, it can be made power interruption or be used the elastic type of moment of torsion wind spring to make torsional deformation by the spring unidirectional couplings that rubs, and reduces the overload that above-mentioned this belt produces in rotation changes.As Chinese Patent Application No. 200880128290.0,201020519051.2 disclosed technological schemes.It can filter vibration at high speed, also can filter low speed vibration.But there is following technical problem in the OAD of this class formation at present: 1, one of friction spring is fixed on retainer, this head of its friction spring is pressed into straight line, straight line and cast can form a bent angle point, and frictional force just focuses on this bent angle point, when generator is when height slowly runs generation friction clutch, be fixed on the easily fracture of this friction spring bent angle point on retainer.2, in addition, friction spring bent angle point and outer round surface are disposable all to be produced the stop of friction and surmounts for belt hub internal diameter, not only working life low, and manufacturing process complexity, cost are very high.
Summary of the invention
The utility model discloses a kind of unidirectional couplings damper pulley of spring friction catch, it has solved the technical problem that above-mentioned one-way belt roller exists.
It is as follows that the utility model solves the technological scheme that its technical problem adopts: unidirectional couplings damper pulley, comprise threaded mandrel, damping spring, friction spring, friction stopper ring, ball bearing, setting sleeve, belt hub, threaded mandrel stretches into belt hub, a ball bearing is respectively assembled at both two ends, belt hub inwall is pressed into friction stopper ring, setting sleeve, the external diameter of threaded mandrel forms a bulge loop, and bulge loop also has a step on the side of offside; With the threaded mandrel overcoat damping washer of bulge loop opposite side, damping washer forms a step; Threaded mandrel overcoat damping spring, first crown of damping spring is in the bulge loop of threaded mandrel, and this end face peaks at the step place of bulge loop; Second crown of damping spring is in damping washer, and this end face peaks at the step place of damping washer; Damping washer is set with friction slip circle outward, and both can synchronously rotate; Friction spring is placed on outside described damping spring, and one of the external diameter of friction spring packs the endoporus place of friction slip circle into, within other end external diameter packs friction stopper ring into, and the outer wall of friction slip circle and described setting sleeve Spielpassung; The internal diameter of friction stopper ring and friction slip circle is all little than the external diameter of friction spring, has increased the elasticity tension of friction spring; Friction spring passes through friction lock with friction stopper ring, friction slip circle, and friction spring is with friction stopper ring, friction slip circle can be alternately separated.
Preferably, to contact a side of damping spring be helicoid to the bulge loop of threaded mandrel.
Preferably, to contact a side of damping spring be helicoid to damping washer.
Preferably, threaded mandrel forms a circle spill draw-in groove; Threaded mandrel overcoat packing ring, the outer side surface of packing ring in damping washer and friction slip circle, the outer side surface of packing ring packs a cubic jump ring into, and cubic jump ring internal diameter is clamped in the spill draw-in groove of threaded mandrel.
Preferably, the external diameter of damping washer forms corresponding plane with the inwall of friction slip circle by both and blocks mutually and can synchronously rotate.
Preferably, the exterior edge face of friction stopper ring packs a back-up ring into, and back-up ring and threaded mandrel Spielpassung, force together with the inwall of belt hub.
Preferably, the exterior edge face of setting sleeve packs a back-up ring into, and back-up ring and threaded mandrel Spielpassung force together with the inwall of belt hub.
Preferably, the exterior edge face of ball bearing is pressed into a dustproof gasket, and dustproof gasket coordinates with the crest clearance of threaded mandrel, forces together with the inwall of belt hub.
Preferably, to be square be that damping spring is rolled into by square Spring Steel Wire to the section of damping spring.
The unidirectional couplings damper pulley of the utility model spring friction catch has the advantages such as the manufacture of reliable transmission, long service life, simple in structure, low cost of manufacture and damping spring is simple and easy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model unidirectional couplings damper pulley.
Fig. 2 is spring shock absorption mechanism schematic diagram.
Fig. 3 is spring friction clutch structural scheme of mechanism.
Fig. 4 is the unidirectional couplings damper mechanism schematic diagram of spring friction catch.
Fig. 5 is the structural drawing of threaded mandrel.
Fig. 6 is the right side view of Fig. 5.
Fig. 7 is the structural drawing of damping spring.
Fig. 8 is the left side view of Fig. 7.
Fig. 9 is the structural drawing of damping washer.
Figure 10 is the left side view of Fig. 9.
Figure 11 is the structural drawing of friction slip circle.
Figure 12 is the left side view of Figure 11.
Figure 13 is the structural drawing of packing ring.
Figure 14 is the left side view of Figure 13.
Figure 15 is the structural drawing of cubic jump ring.
Figure 16 is the left side view of Figure 15.
Figure 17 is the structural drawing of friction spring.
Figure 18 is the left side view of Figure 17.
Figure 19 is the structural drawing of friction stopper ring.
In diagram: 1-threaded mandrel, 2-damping spring, 3-damping washer, 4-friction slip circle, 5-packing ring, 6-four directions jump ring, 7-friction spring, the 8-stopper ring that rubs, back-up ring before 9-, ball bearing before 10-, 11-setting sleeve, back-up ring after 12-, ball bearing after 13-, 14-belt hub, dustproof gasket before 15-, dustproof gasket after 16-.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is elaborated.
As shown in Fig. 1-19, the unidirectional couplings damper pulley of the present embodiment spring friction catch comprises threaded mandrel 1, damping spring 2, damping washer 3, friction slip circle 4, packing ring 5, cubic jump ring 6, friction spring 7, friction stopper ring 8, front back-up ring 9, front ball bearing 10, setting sleeve 11, rear back-up ring 12, rear ball bearing 13, belt hub 14, front dustproof gasket 15, rear dustproof gasket 16.
The external diameter 1-1 place cover of threaded mandrel 1 packs a damping spring 2 into, and damping spring is rolled into by square steel wire, and square steel wire has the advantages that elastic torque is large, volume is little.A 2-1 of damping spring 2 is resisted against on the helicoid of helix core crown of roll ring 1-6, and this end face 2-2 of damping spring 2 peaks at the 1-2 of step place of threaded mandrel 1; The other end 2-3 of damping spring 2 loads onto damping washer 3, and damping washer 3 is coated at threaded mandrel 1.Damping washer 3 has a helicoid 3-3, and this helicoid 3-3 offsets and coordinates with the helicoid 2-4 place of damping spring 2.Damping washer 3 also forms a step 3-1 of place, and it peaks at the end of this 2-3 of damping spring.The external diameter of damping washer 3 has two relative plane 3-2.
Ringwise, another infolding 90 is spent in the part of friction slip circle 4, and this folding part has through hole, and inwall two opposite positions of through hole form plane 4-1.The outerplanar 3-2 of damping washer 3 packs friction slip circle 4 outward into, and two protruding 4-1 of place of friction slip circle 4 endoporus align and are inserted in respectively with two 3-2 of plane place of damping washer 3 external diameters.The plane 3-4 side of damping washer 3 packs a packing ring 5 into, packing ring 5 withstands the side of friction slip circle 4 simultaneously, the opposite side of packing ring 5 is pressed into a cubic jump ring 6 again, and cubic jump ring 6 internal diameters are clamped on the interior 1-3 of draw-in groove of threaded mandrel 1, thereby have been fitted to one group of spring shock absorption mechanism.Referring to Fig. 2.
As shown in Figure 3, spring friction clutch mechanism is on the basis of damping spring mechanism, one of friction spring 7 external diameter is encased in to the endoporus 4-2 place of friction slip circle 4, other end external diameter be encased in dead turn 8 within, dead turn 8 is affixed with an end face of friction slip circle 4, forms one group of spring friction clutch mechanism.To friction spring internal diameter, inject high low temperature grease, make contact position rolling lubrication.
The other end plane of dead turn 8 packs a front back-up ring 9 into, front back-up ring 9 is just outside the bulge loop 1-6 in threaded mandrel 1, the other end plane of front back-up ring 9 is loaded on a front ball bearing 10, outside the external diameter 1-4 of front ball bearing 10 in threaded mandrel 1, its endoporus is pressed on the external diameter 1-4 of threaded mandrel 1.Friction slip circle 4 external diameters pack a setting sleeve 11 into, both Spielpassung, and friction slip circle 4 can be free to slide at setting sleeve 11 internal diameters.Back-up ring 12 after a rear Transverse plane of setting sleeve 11 packs one into, outside the part of rear back-up ring 12 in packing ring 5, Spielpassung between the two.Another plane of rear back-up ring 12 reinstalls a ball bearing 13, and the internal diameter of ball bearing 13 is pressed into the external diameter 1-5 place of threaded mandrel 1, has formed the unidirectional couplings damper mechanism of one group of spring friction catch.Referring to Fig. 4.
The unidirectional couplings damper mechanism of spring friction catch, be pressed into the endoporus of belt hub 14, be that external diameter, front back-up ring 9, dead turn 8 external diameters, setting sleeve 11 external diameters of two ends ball bearing 10,13 are, the outer ring of rear back-up ring 12 is all pressed in the inwall of belt hub 14, then the last Transverse plane of ball bearing 10 is pressed into a front dustproof gasket 15 in the past, dustproof gasket 16 after a rear Transverse plane of rear ball bearing 13 is pressed into one, front and back dustproof gasket all coordinates with the crest clearance of threaded mandrel 1, has been assembled into the unidirectional couplings damper pulley of one group of spring friction catch.
The external diameter of ball bearing and the internal diameter precision-fit of belt hub 14 before and after two, two precision-fit of the endoporus of two ball bearings and threaded mandrel 1, for supporting radial load.Two ball bearing exterior edge faces respectively pack a circular dustproof gasket into, dustproof gasket 16 after the ear end face of ball bearing 13 packs into after, the front-end face of front ball bearing 10 packs a front dustproof gasket 15 into, the external diameter of two dustproof gaskets is all pressed into the inwall of belt hub 14, and the internal diameter of two dustproof gaskets all coordinates with the crest clearance of threaded mandrel 1.
The internal diameter of friction stopper ring 8 and friction slip circle 4 is all little than the external diameter of friction spring 7, thereby increased the elasticity tension of friction spring external diameter, two of friction spring 7 is not fixed on any parts, friction spring 7, adopts free state transferring power and interrupts thus the transmission of power by friction lock with friction stopper ring 8, friction slip circle 4.When the degree of finish of friction stopper ring 8 and friction slip circle 4 endoporus certain when higher, friction spring 7 will rotation in that circle under free state.Friction spring 7 two are with friction stopper ring 8, friction slip circle 4 can be alternately separated, and friction spring is easy-rupturing not, has strengthened working life.
When rub stopper ring 8 and the torsion rotation direction of friction slip circle 4 are contrary with the coil direction of friction spring 7, the external diameter of friction spring 7 will produce expansionary force, produces frictional force and occurs lock state with the internal diameter of friction stopper ring 8, friction slip circle 4.When the coil direction of friction stopper ring 8, friction slip circle 4 torsion rotation directions and friction spring 7 is identical, the external diameter of friction spring 7 will be out of shape contraction, remove and formed free state with the frictional force of friction stopper ring 8, friction slip circle 4 internal diameters, interrupting thus the transmission of power.
When automobile engine crankshaft drives, rotation torque is taken on spring friction clutch belt pulley by belt, the function of utilizing the solid dynamic transmission of friction spring 7 and interrupting switching between torsion.When friction spring 7 external diameters stressed with friction spring 7 coil directions when contrary, friction spring 7 external diameters will be expanded to form with the frictional force of friction stopper ring 8 and friction slip circle 4 internal surfaces and be lock state, make rotation torque be delivered to belt hub 14 by belt, be delivered to again friction stopper ring 8, after be delivered to friction spring 7, be delivered to again friction slip circle 4, be delivered to again damping washer 3, after be delivered to damping spring 2, be delivered to again threaded mandrel 1, finally by threaded mandrel 1, drive generator amature to work.When the rotating speed of belt hub 14 slows down, the inertia rotating speed of generator amature surpasses the rotating speed of belt hub 14, now, threaded mandrel 1 can drive damping spring 2 rotations, and then drives damping washer 3 rotations, finally drives 4 rotations of friction slip circle, and now the sense of rotation of friction slip circle 4 is identical with friction spring 7 coil directions, the external diameter of friction spring 7 will be out of shape contraction, and frictional force is removed and produced free state, interrupts thus transmission of power.
Those of ordinary skill in the art will be appreciated that; above embodiment is only for the utility model is described; and not as to restriction of the present utility model, as long as in scope of the present utility model, to above embodiment's variation, distortion, all will drop on protection domain of the present utility model.
Claims (9)
1. unidirectional couplings damper pulley, comprise threaded mandrel, damping spring, friction spring, friction stopper ring, ball bearing, setting sleeve, belt hub, threaded mandrel stretches into belt hub, a ball bearing is respectively assembled at both two ends, belt hub inwall is pressed into friction stopper ring, setting sleeve, it is characterized in that: the external diameter of threaded mandrel forms a bulge loop, bulge loop also has a step on the side of offside; With the threaded mandrel overcoat damping washer of bulge loop opposite side, damping washer forms a step; Threaded mandrel overcoat damping spring, first crown of damping spring is in the bulge loop of threaded mandrel, and this end face peaks at the step place of bulge loop; Second crown of damping spring is in damping washer, and this end face peaks at the step place of damping washer; Damping washer is set with friction slip circle outward, and both can synchronously rotate; Friction spring is placed on outside described damping spring, and one of the external diameter of friction spring packs the endoporus place of friction slip circle into, within other end external diameter packs friction stopper ring into, and the outer wall of friction slip circle and described setting sleeve Spielpassung; The internal diameter of friction stopper ring and friction slip circle is all little than the external diameter of friction spring, has increased the elasticity tension of friction spring; Friction spring passes through friction lock with friction stopper ring, friction slip circle, and friction spring is with friction stopper ring, friction slip circle can be alternately separated.
2. unidirectional couplings damper pulley as claimed in claim 1, is characterized in that: the side that the bulge loop of described threaded mandrel contacts damping spring is helicoid.
3. unidirectional couplings damper pulley as claimed in claim 1 or 2, is characterized in that: the side that described damping washer contacts damping spring is helicoid.
4. unidirectional couplings damper pulley as claimed in claim 1 or 2, is characterized in that: described threaded mandrel forms a circle spill draw-in groove; Threaded mandrel overcoat packing ring, the outer side surface of packing ring in damping washer and friction slip circle, the outer side surface of packing ring packs a cubic jump ring into, and cubic jump ring internal diameter is clamped in the spill draw-in groove of threaded mandrel.
5. unidirectional couplings damper pulley as claimed in claim 1 or 2, is characterized in that: the external diameter of described damping washer forms corresponding plane with the inwall of friction slip circle by both and blocks mutually and can synchronously rotate.
6. unidirectional couplings damper pulley as claimed in claim 1 or 2, is characterized in that: the exterior edge face of friction stopper ring packs a back-up ring into, and back-up ring and threaded mandrel Spielpassung, force together with the inwall of belt hub.
7. unidirectional couplings damper pulley as claimed in claim 1 or 2, is characterized in that: the exterior edge face of setting sleeve packs a back-up ring into, and back-up ring and threaded mandrel Spielpassung force together with the inwall of belt hub.
8. unidirectional couplings damper pulley as claimed in claim 1 or 2, is characterized in that: the exterior edge face of ball bearing is pressed into a dustproof gasket, and dustproof gasket coordinates with the crest clearance of threaded mandrel, forces together with the inwall of belt hub.
9. unidirectional couplings damper pulley as claimed in claim 1 or 2, is characterized in that: the section of damping spring is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424410.XU CN203413096U (en) | 2013-07-15 | 2013-07-15 | One-way coupling damping belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424410.XU CN203413096U (en) | 2013-07-15 | 2013-07-15 | One-way coupling damping belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203413096U true CN203413096U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201320424410.XU Expired - Lifetime CN203413096U (en) | 2013-07-15 | 2013-07-15 | One-way coupling damping belt pulley |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363064A (en) * | 2013-07-15 | 2013-10-23 | 李志敏 | Spring friction brake one-way coupling damping belt wheel |
| WO2014198086A1 (en) * | 2013-06-13 | 2014-12-18 | Li Zhimin | Unidirectionally coupled damping pulley |
| CN105650199A (en) * | 2014-11-28 | 2016-06-08 | 特瑞堡威巴克公司 | vibration damper |
| CN107191575A (en) * | 2016-10-09 | 2017-09-22 | 台州振鹏单向器有限公司 | A kind of damper pulley of roller type one way coupling |
| 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 |
| CN108368921A (en) * | 2015-12-08 | 2018-08-03 | 舍弗勒技术股份两合公司 | Belt pulley decoupler |
| CN109340349A (en) * | 2018-10-22 | 2019-02-15 | 台州振鹏单向器有限公司 | A kind of damper pulley of spring friction catch |
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2013
- 2013-07-15 CN CN201320424410.XU patent/CN203413096U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014198086A1 (en) * | 2013-06-13 | 2014-12-18 | Li Zhimin | Unidirectionally coupled damping pulley |
| US9611928B2 (en) | 2013-06-13 | 2017-04-04 | Zhimin Li | Unidirectional coupling damping pulley |
| CN103363064B (en) * | 2013-07-15 | 2015-06-03 | 李志敏 | Spring friction brake one-way coupling damping belt wheel |
| CN103363064A (en) * | 2013-07-15 | 2013-10-23 | 李志敏 | Spring friction brake one-way coupling damping belt wheel |
| CN105650199A (en) * | 2014-11-28 | 2016-06-08 | 特瑞堡威巴克公司 | vibration damper |
| CN105650199B (en) * | 2014-11-28 | 2018-07-27 | 威巴克公司 | Vibration absorber |
| US10697531B2 (en) | 2014-11-28 | 2020-06-30 | Vibracoustic Gmbh | Vibration damping device |
| US10816041B2 (en) | 2015-12-08 | 2020-10-27 | Schaeffler Technologies AG & Co. KG | Belt pulley decoupler |
| CN108368921A (en) * | 2015-12-08 | 2018-08-03 | 舍弗勒技术股份两合公司 | Belt pulley decoupler |
| CN108368921B (en) * | 2015-12-08 | 2024-04-09 | 舍弗勒投资(中国)有限公司 | Belt pulley decoupler |
| CN107191575A (en) * | 2016-10-09 | 2017-09-22 | 台州振鹏单向器有限公司 | A kind of damper pulley of roller type one way coupling |
| 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 |
| CN109340349B (en) * | 2018-10-22 | 2024-02-27 | 台州振鹏单向器有限公司 | Damping belt pulley for spring friction braking |
| CN109340349A (en) * | 2018-10-22 | 2019-02-15 | 台州振鹏单向器有限公司 | A kind of damper pulley of spring friction catch |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140129 Effective date of abandoning: 20150603 |
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| RGAV | Abandon patent right to avoid regrant |