CN102817936B - Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley - Google Patents
Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley Download PDFInfo
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- CN102817936B CN102817936B CN201210324585.3A CN201210324585A CN102817936B CN 102817936 B CN102817936 B CN 102817936B CN 201210324585 A CN201210324585 A CN 201210324585A CN 102817936 B CN102817936 B CN 102817936B
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Abstract
The invention discloses a spring friction clutch mechanism for a belt pulley and a one-way coupling damping belt pulley. The one-way coupling damping belt pulley comprises a belt hub, a threaded mandrel, a front ball bearing and a rear ball bearing, wherein the threaded mandrel is located in an inner hole of the belt hub, the front ball bearing and the rear ball bearing are arranged between ends of the threaded mandrel and the belt hub respectively, the spring friction clutch mechanism is arranged inside the belt hub, the spring friction clutch mechanism comprises a drive member, a sliding ring and a friction spring, the drive member is provided with a circular inner hole, the sliding ring is provided with a circular inner hole, one section of the friction spring is arranged inside the inner hole of the sliding ring, the other section of the friction spring is arranged inside the inner hole of the drive member, the inner diameters of the drive member and the sliding ring are smaller than the outer diameter of the friction spring, the threaded mandrel penetrates through the inner hole of the friction spring, the outer wall of the drive member and the inner wall of the belt hub are fixed, the sliding ring is connected with a connection poking piece in a clamping mode, the connection poking piece is sleeved outside the threaded mandrel, the connection poking piece is positioned at one end of the a damping spring, the damping spring is sleeved outside the threaded mandrel, and the other end of the damping spring is positioned on the threaded mandrel.
Description
Technical field
The invention belongs to the unidirectional couplings damper pulley manufacturing technology field of automobile current generator, wherein be related specifically to by the unidirectional couplings damper mechanism of spring friction catch, be specially the spring friction clutch mechanism being applied to belt pulley and the unidirectional couplings damper pulley adopting spring friction catch.
Background technique
When the crank-driven of generator via the motor car engine such as belt, pulley unit, due to the circulation of aspirating stroke, compression stroke, burning and expansion stroke and exhaust stroke, belt pulley, rotating shaft and belt pulley may produce excessive rotating torques (moment of torsion) and tension force.Under the instantaneous downward trend of the rotation of bent axle, alternator shaft has very large the moment of inertia, and belt tension and produce tension variation on the direction that torque produces, this may make belt transship and reduce working life of 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 by the spring unidirectional couplings that rubs or be used the elastic type of moment of torsion wind spring to make torsional deformation, reduces above-mentioned this belt and is rotating the overload produced in change.As the technological scheme disclosed in Chinese Patent Application No. 200880128290.0, the patent No. 201020519051.2.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 slowly runs generation friction clutch at height, this friction spring bent angle point be fixed on retainer easily ruptures.2, in addition, friction spring bent angle point and outer round surface is disposable all produces the stop of friction for belt hub internal diameter and surmount, not only working life is low, and manufacturing process complexity, cost is very high.
Summary of the invention
For solving the above-mentioned technical problem that prior art exists, the invention discloses and be a kind ofly applied to the spring friction clutch mechanism of belt pulley and there is the unidirectional couplings damper pulley of spring friction catch.
The present invention takes following technological scheme: the spring friction clutch mechanism being applied to belt pulley, comprise actuator, sliding ring, friction spring, described actuator, sliding ring all have circular inner hole, one section of friction spring loads the endoporus of sliding ring, another section loads the endoporus of actuator, and the internal diameter of actuator and sliding ring is all little than the external diameter of friction spring.
Preferably, actuator is front stopper ring or unidirectional needle roller Engaging-and-disengaging bearing.
Unidirectional couplings damper pulley of the present invention, comprise belt hub, threaded mandrel, front ball bearing, rear ball bearing, threaded mandrel loads the endoporus of belt hub, front ball bearing is respectively charged between both ends, rear ball bearing, spring friction clutch mechanism is provided with within belt hub, described spring friction clutch mechanism comprises actuator, sliding ring, friction spring, actuator, sliding ring all has circular inner hole, one section of friction spring loads the endoporus of sliding ring, another section loads the endoporus of actuator, the internal diameter of actuator and sliding ring is all little than the external diameter of friction spring, described threaded mandrel is through the endoporus of friction spring, the outer wall of actuator and the inwall of belt hub fix, sliding ring clamping one connects plectrum, connects plectrum and is coated at threaded mandrel, and connect one end of plectrum location damping spring, damping spring is coated at threaded mandrel, and the other end of damping spring is positioned threaded mandrel.
Preferably, actuator is front stopper ring, and front stopper ring, sliding ring are all circular, and equal and both end face of both internal diameter is affixed; The inwall of the external diameter close-fitting press-in belt hub of front stopper ring.When belt hub rotates, when it turns to contrary with the coil direction of friction spring, the internal diameter that friction spring external diameter will produce expansionary force and front stopper ring and sliding ring produces frictional force and occurs lock state, drives shock absorbing resilient mechanism and generator amature to rotate.When belt hub rotating speed slows down, the rotating speed of generator amature exceedes belt hub, and now, turning to of generator amature is identical with the coil direction of friction spring, and friction spring forms disconnecting with belt hub and is separated under state freely.
Preferably, actuator is unidirectional needle roller Engaging-and-disengaging bearing, and the inner ring diameter of unidirectional needle roller Engaging-and-disengaging bearing is less than the external diameter of friction spring, the inwall of the outer ring press-in belt hub of unidirectional needle roller Engaging-and-disengaging bearing.
Preferably, stopper ring after being rotatably assorted outside sliding ring, rear stopper ring is fixed on the inwall of belt hub.
Preferably, threaded mandrel forms flange collar, flange collar has keyway, a termination of damping spring described in grafting in keyway; Described connection plectrum is circular, the wall of its endoporus is formed a keyway, another termination of damping spring described in grafting in keyway.
Preferably, the both sides connecting plectrum outer wall relative form two projections; The internal diameter of sliding ring is suitable with the external diameter being connected plectrum, and sliding ring forms the groove that two are in opposite side, and groove extends to a side of sliding ring, inserts two projections connecting plectrum in two grooves.
Preferably, threaded mandrel forms twice annular slot, and annular slot respectively loads an axially locating circle, and two axial positioning rings are blocked in the inner side surface of front ball bearing, rear ball bearing respectively.
Preferably, the exterior edge face of front ball bearing, rear ball bearing respectively loads a dustproof gasket, and the external diameter of two dustproof gaskets is all pressed into the inwall of belt hub, and the internal diameter of two dustproof gaskets all coordinates with the crest clearance of threaded mandrel.
Unidirectional couplings damper pulley of the present invention has that long service life, manufacturing process are simple, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the structural representation that embodiment 1 removes rear ball bearing, rear defence lubricating pad sheet, rear axial positioning ring, connection plectrum.
Fig. 3 is the spring friction clutch mechanism view of embodiment 1.
Fig. 4 is the B direction view of Fig. 3.
Fig. 5 is the topology view of sliding ring.
Fig. 6 is the B direction view of Fig. 5.
Fig. 7 is the topology view of friction spring.
Fig. 8 is the B direction view of Fig. 7.
Fig. 9 is the topology view connecting plectrum.
Figure 10 is the B direction view of Fig. 9.
Figure 11 is damping spring topology view.
Figure 12 is the B direction view of Figure 11.
Figure 13 is the topology view of threaded mandrel.
Figure 14 is the B direction view of Figure 13.
Figure 15 be embodiment 2 structural representation.
Figure 16 is the topology view of unidirectional needle roller Engaging-and-disengaging bearing.
The one-way element friction clutch mechanism view that Figure 17 is friction spring, sliding ring and unidirectional needle roller Engaging-and-disengaging bearing assemble.
In diagram: 1, belt hub, 2, threaded mandrel, 3, front stopper ring, 4, rear stopper ring, 5, sliding ring, 6, friction spring, 7, damping spring, 8, connect plectrum, 9, rear defence lubricating pad sheet, 10, rear axial positioning ring, 11, front axle to positioning ring, 12, front grease proofing pad, 13, front ball bearing, 14, rear ball bearing, 15, rear dustproof gasket, 16, front dustproof gasket, 17, unidirectional needle roller Engaging-and-disengaging bearing.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is elaborated.
Embodiment 1: as represented in figures 1 through 14, and the unidirectional couplings damper pulley of the present embodiment spring friction catch comprises belt hub 1, threaded mandrel 2, front stopper ring 3, rear stopper ring 4, sliding ring 5, friction spring 6, damping spring 7, connects plectrum 8, rear defence lubricating pad sheet 9, rear axial positioning ring 10, front axle to positioning ring 11, front grease proofing pad 12, front ball bearing 13, rear ball bearing 14, rear dustproof gasket 15, front dustproof gasket 16.
Spring friction clutch mechanism is provided with within belt hub 1, front stopper ring 3, sliding ring 5, friction spring 6 are assembled into one group of spring friction clutch mechanism, see Fig. 3-8, front stopper ring 3, sliding ring 5 are all circular, and equal and both end face of both internal diameter is affixed.One section of friction spring 6 loads the endoporus of sliding ring 5, the endoporus of stopper ring 3 before another section loads, the internal diameter of front stopper ring 3 and sliding ring 5 is all little than the external diameter of friction spring 6, thus add the elasticity tension of friction spring external diameter, two of friction spring 6 is not fixed on any parts, friction spring 6 and front stopper ring 3, sliding ring 5, by friction lock, adopt free state transferring power also to interrupt the transmission of power thus.The degree of finish of current stopper ring 3 and sliding ring 5 endoporus certain higher time, friction spring 6 in a free state will that circle in rotation.Friction spring 6 two of this structure can alternately be separated with front stopper ring 3, sliding ring 5, and friction spring is not easy fracture, greatly strengthen its working life.
When the torsion rotation direction of current stopper ring 3 and sliding ring 5 is contrary with the coil direction of friction spring 6, the external diameter of friction spring 6 will produce expansionary force, produces frictional force with the internal diameter of front stopper ring 3 and sliding ring 5 and occurs lock state.When current stopper ring 3 is identical with the coil direction of friction spring 6 with sliding ring 5 torsion rotation direction, the external diameter of friction spring 6 will deformation retract, removes and defines free state, interrupt the transmission of power thus with the frictional force of front stopper ring 3 and sliding ring 5 internal diameter.Inject high/low temperature grease to friction spring 6 internal diameter, make contact position rolling lubrication.The excircle of sliding ring 5 forms one annular oil groove 5-2, after injecting high/low temperature grease, and lubricate.
The inwall of the external diameter close-fitting press-in belt hub 1 of front stopper ring 3, forms one.Stopper ring 4 after the external diameter of sliding ring 5 loads one, rear stopper ring 4 is made by quenching by bearing steel material, and its hardness is very high, and endoporus is through fine grinding, and the external diameter of itself and sliding ring 5 freely rotates break-in well.The external diameter of rear stopper ring 4 and the endoporus of belt hub 1 closely cooperate.
For ease of describing, the right-hand member of Fig. 1 is defined as the front end of unidirectional couplings damper pulley, left end is defined as the rear end of unidirectional couplings damper pulley.
The endoporus of belt hub 1 loads threaded mandrel 2, threaded mandrel 2 is through aforesaid spring friction clutch mechanism, threaded mandrel 2 is provided with damping spring mechanism with spring friction clutch is inter-agency: the forward end side, middle part of threaded mandrel 2 is to forming flange collar, flange collar has keyway 2-4, this keyway is between friction spring 6 and threaded mandrel 2.In the middle part of threaded mandrel 2, the external diameter of 2-3 is less than the external diameter of aforementioned flange collar, be inserted in damping spring 7(damping spring outside the 2-3 of middle part to be rolled into by square Spring Steel Wire, square steel wire has the advantages that elastic torque is large, volume is little), two each bent outwards of lead end of damping spring 7 at an angle of 90, extend towards the axis of spring after bending, an elbow (front elbow) 7-1 of damping spring 7 just inserts in the keyway 2-4 of flange collar of threaded mandrel 2.Connect plectrum 8 in circular, its endoporus forms a keyway 8-1, and the both sides that outer wall is relative form two protruding 8-2(and see Fig. 9,10).Connecting plectrum 8 is placed on outside the 2-3 rear end, middle part of threaded mandrel 2, elbow after another elbow 7-2(of its keyway 8-1 insertion damping spring 7).
The internal diameter of sliding ring 5 is suitable with the external diameter being connected plectrum 8, sliding ring 5 forms the groove 5-1 that two are in opposite side, groove 5-1 extends to a side (see Fig. 5,6) of sliding ring 5, two the protruding 8-2 connecting plectrum 8 are inserted in these two groove 5-1, like this, just spring friction one-way clutch parts and torsion spring are coupled together, make sliding ring 5, connect plectrum 8, damping spring 7 and threaded mandrel 2 interlock together.Damping spring is that belt pulley passes to moment of torsion on generator rotor shaft, makes generator amature quick rotation once in order to motor and bent axle produce a very large torque drive on belt pulley when starting.When engine crankshaft torque drive is to belt pulley and spring friction clutch mechanism, sliding ring passes to connection plectrum torsion, pass on the damping spring that is contained in and connects plectrum internal diameter keyway again, the outside tension elastomeric distortion of damping spring, enough reduces the tension variation on belt pulley and the vibration of the speed of generation.Therefore, generator produces vibration when height slowly runs, and shock absorbing resilient mechanism will eliminate vibration elasticity.
Before and after threaded mandrel 2, section is respectively dress bearing portion 2-1,2-5, the external diameter of dress bearing portion 2-1 is less than the flange collar residing for keyway 2-4, one annular slot is partially formed near the dress bearing portion 2-1 of flange collar, this annular slot loads a front axle to positioning ring 11, and front axle is blocked in the leading flank of flange collar to positioning ring 11.Ball bearing 13 before this 2-1 is pressed into again, the inner ring of front ball bearing 13 and the outer wall of threaded mandrel 2 force together, and the inwall of outer ring and belt hub 1 forces together.The external diameter of dress bearing portion 2-5 is less than the external diameter of middle part 2-3, one annular slot is partially formed near the dress bearing portion 2-5 of flange collar, this annular slot loads a rear axial positioning ring 10, and the leading flank of rear axial positioning ring 10 is blocked in dress bearing portion 2-5 and the step surface between the 2-3 of middle part and the partial back side face being connected plectrum 8.Ball bearing 14 after this 2-5 is pressed into again, the inner ring of rear ball bearing 14 and the outer wall of threaded mandrel 2 force together, and the inwall of outer ring and belt hub 1 forces together.
Front axle is close proximity between the leading flank of threaded mandrel 2 flange collar and the trailing flank (locally) of front ball bearing 13 to positioning ring 11.The trailing flank of rear axial positioning ring 10 is close proximity to the leading flank (locally) of rear ball bearing 14, and two axial positioning rings are in order to prevent the axial displacement of threaded mandrel 2.
The external diameter of two front and back ball bearings and belt hub 1 internal diameter precision-fit, the endoporus of two ball bearings and threaded mandrel two precision-fit, for supporting radial load.Two ball bearing exterior edge faces respectively load a circular dustproof gasket, namely dustproof gasket 15 after the ear end face of ball bearing 14 loads after, the front-end face of front ball bearing 13 loads a front dustproof gasket 16, the external diameter of two dustproof gaskets is all pressed into the inwall of belt hub 1, and the internal diameter of two dustproof gaskets all coordinates with the crest clearance of threaded mandrel 2.The front-end face of rear ball bearing 14 outer ring loads rear defence lubricating pad sheet 9, the front-end face (locally) of rear ball bearing 14 and the ear end face of spring friction clutch mechanism separate by rear defence lubricating pad sheet 9, the ear end face of front ball bearing 13 outer ring loads front grease proofing pad 12, and the ear end face (locally) of front ball bearing 13 and the front-end face of spring friction clutch mechanism separate by front grease proofing pad 12.The outer ring of such belt hub, front and back ball bearing, front and back stopper ring, the grease proofing pad in front and back, front and back dustproof gasket form one.
During assembling, threaded mandrel 2 snaps in front axle to positioning ring 11, the inner ring of ball bearing 13 before overcoat is also pressed into; Overcoat damping spring 7 again, the keyway of flange collar is inserted in the front end of damping spring 7.Grease proofing pad 12 before rear loading, the external diameter of the sliding ring 5 of the spring friction clutch mechanism assembled is put rear stopper ring 4, again threaded mandrel 2 is inserted in from rear end in spring friction clutch mechanism and rear stopper ring 4, and be pressed into belt hub 1 endoporus together, reinstall and connect plectrum 8, be enclosed within the follower head 7-2 of damping spring 7 by the keyway 8-1 connected on plectrum 8, two the protruding 8-2 connecting plectrum 8 are then contained in two groove 5-1 on sliding ring 5; Then axial positioning ring 10 and rear defence lubricating pad sheet 9 after loading, ball bearing 14 after press-in again, finally dustproof gasket 15 after the ear end face press-in of rear ball bearing 14, dustproof gasket 16 before the front-end face press-in of front ball bearing 13, has just been assembled into the unidirectional couplings damper pulley of one group of spring friction catch.
When automobile engine crankshaft drives, rotation torque takes on spring friction clutch belt pulley by belt, utilize the function switched between the solid dynamic transmission of the friction spring 6 of spring friction clutch mechanism and interruption torsion, when friction spring 6 external diameter stressed contrary with friction spring 6 coil direction time, friction spring 6 external diameter will be expanded the frictional force of formation and front stopper ring 3 and sliding ring 5 internal surface and be lock state, rotation torque is made to be delivered to belt hub 1 by belt, be delivered to front stopper ring 3 again, after be delivered to friction spring 6, be delivered to sliding ring 5 again, be delivered to again and connect plectrum 8, after be delivered to damping spring 7, be delivered to threaded mandrel 2 again, last by threaded mandrel 2 drive electrical generators working rotor.When the rotating speed of belt hub 1 slows down, the inertia rotating speed of generator amature exceedes the rotating speed of belt hub 1, now, threaded mandrel 2 can drive damping spring to rotate 7, and then is with the plectrum 8 that is dynamically connected to rotate, and finally drives sliding ring 5 to rotate, and now the sense of rotation of sliding ring 5 is identical with friction spring 6 coil direction, the external diameter of friction spring 6 will deformation retract, and frictional force is removed and created free state, interrupts transmission of power thus.
Embodiment 2: see Figure 15-17, the present embodiment makes stopper ring before in embodiment 1 into unidirectional needle roller Engaging-and-disengaging bearing 17, one section (leading portion) of friction spring 6 outer ring is contained in the endoporus of unidirectional needle roller Engaging-and-disengaging bearing 17, other one section (back segment) is contained in the endoporus of sliding ring 5, the inner ring diameter of unidirectional needle roller Engaging-and-disengaging bearing 17 is less than the external diameter of friction spring 6, the inwall of the outer ring press-in belt hub 1 of unidirectional needle roller Engaging-and-disengaging bearing 17.Unidirectional needle roller Engaging-and-disengaging bearing 17 is when being pressed into belt hub endoporus, and it is identical that monodirectional locking direction and belt hub turn to.Other structure of the present embodiment is identical with embodiment 1, reference example 1.
When belt hub rotating speed slows down, the inertia rotating speed of generator amature and shock absorbing resilient mechanism exceedes the rotating speed of belt hub.Now, sliding ring rotates to unidirectional needle roller Engaging-and-disengaging bearing unlocking direction with friction spring, interrupts the transmission of power thus.
Because sliding ring endoporus is larger with friction spring outer ring frictional force, when unidirectional needle roller Engaging-and-disengaging bearing rubs with friction spring outer ring in the unlocked state, the needle roller of unidirectional needle roller Engaging-and-disengaging bearing can rotate with friction spring simultaneously, frictional force will be smaller, thus spring friction clutch mechanism is strengthened working life greatly, unidirectional needle roller Engaging-and-disengaging bearing interrupts the transmission of power in the unlocked state.
Embodiment 3: in previous embodiment 1, and spring friction clutch mechanism can separately as the technological scheme that invention is claimed, and namely this spring friction clutch mechanism can be applied to other belt sheave structure.
In the present embodiment, front stopper ring 3, sliding ring 5, friction spring 6 are assembled into one group of spring friction clutch mechanism, and see Fig. 3-8, front stopper ring 3, sliding ring 5 are all circular, and equal and both end face of both internal diameter is affixed.One section of friction spring 6 loads the endoporus of sliding ring 5, the endoporus of stopper ring 3 before another section loads, the internal diameter of front stopper ring 3 and sliding ring 5 is all little than the external diameter of friction spring 6, thus add the elasticity tension of friction spring external diameter, two of friction spring 6 is not fixed on any parts, friction spring 6 and front stopper ring 3, sliding ring 5, by friction lock, adopt free state transferring power also to interrupt the transmission of power thus.
When the torsion rotation direction of current stopper ring 3 and sliding ring 5 is contrary with the coil direction of friction spring 6, the external diameter of friction spring 6 will produce expansionary force, produces frictional force with the internal diameter of front stopper ring 3 and sliding ring 5 and occurs lock state.When current stopper ring 3 is identical with the coil direction of friction spring 6 with sliding ring 5 torsion rotation direction, the external diameter of friction spring 6 will deformation retract, removes and defines free state, interrupt the transmission of power thus with the frictional force of front stopper ring 3 and sliding ring 5 internal diameter.
Embodiment 4: same, and in previous embodiment 2, spring friction clutch mechanism can separately as the technological scheme that invention is claimed, and namely this spring friction clutch mechanism can be applied to other belt sheave structure.
Embodiment makes stopper ring before in embodiment 3 into unidirectional needle roller Engaging-and-disengaging bearing 17, see Figure 16,17, one section (leading portion) of friction spring 6 outer ring is contained in the endoporus of unidirectional needle roller Engaging-and-disengaging bearing 17, other one section (back segment) is contained in the endoporus of sliding ring 5, the inner ring diameter of unidirectional needle roller Engaging-and-disengaging bearing 17 is less than the external diameter of friction spring 6, the inwall of the outer ring press-in belt hub 1 of unidirectional needle roller Engaging-and-disengaging bearing 17.Unidirectional needle roller Engaging-and-disengaging bearing 17 is when being pressed into belt hub endoporus, and it is identical that monodirectional locking direction and belt hub turn to.Other structure of the present embodiment is identical with embodiment 3, reference example 3.
When belt hub rotating speed slows down, the inertia rotating speed of generator amature and shock absorbing resilient mechanism exceedes the rotating speed of belt hub.Now, sliding ring rotates to unidirectional needle roller Engaging-and-disengaging bearing unlocking direction with friction spring, interrupts the transmission of power thus.
The one-way element coupling damper pulley of automobile current generator of the present invention has the advantages such as structure is simple, long service life, manufacturing process are simple, low cost of manufacture.
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 in essential scope of the present invention, all will protection scope of the present invention be dropped on to the change of the above embodiment, modification.
Claims (6)
1. unidirectional couplings damper pulley, comprise belt hub, threaded mandrel, front ball bearing, rear ball bearing, threaded mandrel loads the endoporus of belt hub, front ball bearing is respectively charged between both ends, rear ball bearing, it is characterized in that: within belt hub, be provided with spring friction clutch mechanism, described spring friction clutch mechanism comprises actuator, sliding ring, friction spring, actuator, sliding ring all has circular inner hole, one section of friction spring loads the endoporus of sliding ring, another section loads the endoporus of actuator, the internal diameter of actuator and sliding ring is all little than the external diameter of friction spring, described threaded mandrel is through the endoporus of friction spring, the outer wall of actuator and the inwall of belt hub fix, sliding ring clamping one connects plectrum, connects plectrum and is coated at threaded mandrel, and connect one end of plectrum location damping spring, damping spring is coated at threaded mandrel, and the other end of damping spring is positioned threaded mandrel, threaded mandrel forms flange collar, flange collar has keyway, a termination of damping spring described in grafting in keyway, described connection plectrum is circular, the wall of its endoporus is formed a keyway, another termination of damping spring described in grafting in keyway, the both sides connecting plectrum outer wall relative form two projections, the internal diameter of sliding ring is suitable with the external diameter being connected plectrum, and sliding ring forms the groove that two are in opposite side, and groove extends to a side of sliding ring, inserts two projections connecting plectrum in two grooves.
2. unidirectional couplings damper pulley as claimed in claim 1, it is characterized in that: described actuator is front stopper ring, front stopper ring, sliding ring are all circular, and equal and both end face of both internal diameter is affixed; The inwall of the external diameter close-fitting press-in belt hub of front stopper ring.
3. unidirectional couplings damper pulley as claimed in claim 1, it is characterized in that: described actuator is unidirectional needle roller Engaging-and-disengaging bearing, the inner ring diameter of unidirectional needle roller Engaging-and-disengaging bearing is less than the external diameter of friction spring, the inwall of the outer ring press-in belt hub of unidirectional needle roller Engaging-and-disengaging bearing.
4. the unidirectional couplings damper pulley as described in any one of claim 1-3, is characterized in that: stopper ring after being rotatably assorted outside sliding ring, and rear stopper ring is fixed on the inwall of belt hub.
5. the unidirectional couplings damper pulley as described in any one of claim 1-3, it is characterized in that: threaded mandrel forms twice annular slot, annular slot respectively loads an axially locating circle, and two axial positioning rings are blocked in the inner side surface of front ball bearing, rear ball bearing respectively.
6. the unidirectional couplings damper pulley as described in any one of claim 1-3, it is characterized in that: the exterior edge face of front ball bearing, rear ball bearing respectively loads a dustproof gasket, the external diameter of two dustproof gaskets is all pressed into the inwall of belt hub, and the internal diameter of two dustproof gaskets all coordinates with the crest clearance of threaded mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210324585.3A CN102817936B (en) | 2012-09-05 | 2012-09-05 | Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210324585.3A CN102817936B (en) | 2012-09-05 | 2012-09-05 | Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley |
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| CN102817936A CN102817936A (en) | 2012-12-12 |
| CN102817936B true CN102817936B (en) | 2015-06-03 |
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| CN103363064B (en) * | 2013-07-15 | 2015-06-03 | 李志敏 | Spring friction brake one-way coupling damping belt wheel |
| CN103352973B (en) * | 2013-06-13 | 2015-04-22 | 李志敏 | Unidirectional belt pulley subjected to friction clutch by spring |
| US9611928B2 (en) | 2013-06-13 | 2017-04-04 | Zhimin Li | Unidirectional coupling damping pulley |
| 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 |
| CN105003627A (en) * | 2015-08-17 | 2015-10-28 | 浙江洋通汽车配件有限公司 | One-way buffer pulley |
| FR3047363B1 (en) * | 2016-02-03 | 2018-03-02 | Valeo Equipements Electriques Moteur | PULLEY ASSEMBLY FOR A ROTATING ELECTRICAL MACHINE |
| CN106195218B (en) * | 2016-08-30 | 2018-11-23 | 无锡市神力齿轮冷挤有限公司 | Spring friction one-way belt sheave |
| FR3079586B1 (en) * | 2018-04-03 | 2020-04-03 | Aktiebolaget Skf | PULLEY DEVICE FOR TENSIONER OR ROLLER |
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| CN202790444U (en) * | 2012-09-05 | 2013-03-13 | 李志敏 | One-way coupling shock-absorption belt pulley adopting spring frication braking |
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| US7191880B2 (en) * | 2000-05-31 | 2007-03-20 | Ntn Corporation | Over-running clutch pulley with increased surface microhardness |
| US9441677B2 (en) * | 2010-06-25 | 2016-09-13 | Litens Automotive Partnership | Overrunning decoupler |
| BR112012029750A2 (en) * | 2010-06-25 | 2016-08-09 | Litens Automotive Inc | uncoupler, and method for forming a decoupler |
| CN101936378A (en) * | 2010-09-07 | 2011-01-05 | 江苏南方轴承股份有限公司 | Unidirectional pulley for AC generator |
| CN101936348B (en) * | 2010-09-07 | 2012-07-11 | 江苏南方轴承股份有限公司 | Belt pulley of over-travel alternating current generator decoupler |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202790444U (en) * | 2012-09-05 | 2013-03-13 | 李志敏 | One-way coupling shock-absorption belt pulley adopting spring frication braking |
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| Publication number | Publication date |
|---|---|
| CN102817936A (en) | 2012-12-12 |
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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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