WO2011079835A1 - Crankshaft pulley - Google Patents
Crankshaft pulley Download PDFInfo
- Publication number
- WO2011079835A1 WO2011079835A1 PCT/DE2010/001473 DE2010001473W WO2011079835A1 WO 2011079835 A1 WO2011079835 A1 WO 2011079835A1 DE 2010001473 W DE2010001473 W DE 2010001473W WO 2011079835 A1 WO2011079835 A1 WO 2011079835A1
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- WO
- WIPO (PCT)
- Prior art keywords
- freewheel
- crankshaft
- crankshaft pulley
- pulley according
- friction lining
- 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.)
- Ceased
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
- F16D41/086—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action the intermediate members being of circular cross-section and wedging by rolling
- F16D41/088—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action the intermediate members being of circular cross-section and wedging by rolling the intermediate members being of only one size and wedging by a movement not having an axial component, between inner and outer races, one of which is cylindrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D47/00—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings
- F16D47/04—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings of which at least one is a freewheel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
Definitions
- the invention relates to a crankshaft pulley for transmitting a torque between a crankshaft and a belt drive, with a freewheel.
- German patent application DE 195 35 889 A1 discloses a one-way clutch is known, which is arranged between a pulley and a shaft.
- the known overrunning clutch is suitable for driving a generator and is part of a pulley, which serves to drive the generator.
- By using the one-way clutch an internal damping is made possible, so that the torque transmission of the traction mechanism is improved.
- European Patent EP 0 980 479 B1 discloses a belt drive system having a generator clutch freewheel clutch comprising a torsion coil spring and a one-way clutch mechanism. As a result, the driving torques of the generator pulley can be transmitted to a hub yielding. In addition, the generator pulley can be uncoupled from the hub in one direction.
- the object of the invention is to provide a space-neutral solution for a decoupled from the crankshaft crankshaft pulley according to the preamble of claim 1.
- the crankshaft pulley according to the invention should in particular a start-stop operation, a stationary climate and generator operation, preferably with a pulse starting possibility including Kurbelwellentilger, and / or damping of rotational irregularities in the belt drive, allow.
- crankshaft pulley for transmitting a torque between a crankshaft and a belt drive, with a freewheel, characterized in that the freewheel in the crankshaft pulley with an electromagnetically operable coupling is combined.
- the switchable freewheel rotational irregularities of the crankshaft can be reduced in the belt drive.
- the switching of the freewheel takes place by means of the electromagnetically actuated clutch taking advantage of the relative movement between the crankshaft pulley and the crankshaft.
- crankshaft pulley has an annulus for receiving a stationary coil.
- the coil is used to actuate the clutch and is preferably housed in a magnet housing, which is fastened to a crankcase, for example by means of a screw flange.
- crankshaft pulley is characterized in that the annular space is delimited by a friction lining carrier, which is non-rotatably connected to the crankshaft.
- the friction lining carrier is rotatable relative to the stationary spool.
- the friction lining carrier for limiting the annular space has a U-shaped cross section with a base, from which two legs extend, which extend in the axial direction.
- Axial means in the direction or parallel to the axis of rotation of the crankshaft pulley.
- the base of the U-shaped cross section preferably extends in the radial direction.
- Radial means transverse to the axis of rotation of the crankshaft pulley.
- At least one friction lining is fixedly mounted in or at the base of the U-shaped cross section of the friction lining carrier.
- crankshaft pulley is characterized in that at least one absorber mass is attached to the radially outer limb of the U-shaped cross section of the friction lining carrier.
- the absorber mass is preferably attached to the friction lining carrier with the interposition of a rubber track.
- a further preferred embodiment of the crankshaft pulley is characterized in that a friction lining of the clutch is provided at the base of the U-shaped cross section. The friction lining is rotatably connected via the Reibbelagiki with the crankshaft.
- a further preferred embodiment of the crankshaft pulley is characterized in that a central screw which is fixed to the crankshaft, a freewheel inner ring is, which can be coupled with the interposition of a bearing device and the freewheel with a freewheel outer ring.
- the freewheel is preferably designed as a roller freewheel with a cage and ramps.
- crankshaft pulley is characterized in that a switching element for the freewheel on the freewheel outer ring is fixed axially and rotatably supported between two end positions, in which the freewheel has different blocking directions.
- the switching element is preferably locked by a locking spring in its end positions.
- crankshaft pulley is characterized in that a friction ring is mounted by means of leaf springs on the switching element.
- the leaf springs allow axial movement of the friction ring to the base of the U-shaped cross section of the friction lining carrier when the fixed coil is energized to electromagnetically actuate the clutch.
- crankshaft pulley is characterized in that a pulley track is coupled via a slip clutch with the freewheel outer ring.
- the slip clutch comprises friction linings, which are preferably biased against each other by a disc spring.
- FIG. 1 shows a crankshaft pulley according to the invention in a longitudinal section through the
- Figure 2 is a three-dimensional sectional view of the crankshaft pulley of Figure 1;
- Figure 3 is another three-dimensional sectional view of the crankshaft pulley
- Figure 4 is a perspective view of a central screw of the crankshaft pulley of Figure 1;
- Figure 5 is a perspective view of a freewheel outer ring of the crank pulley of Figure 1;
- Figure 6 is a perspective view of a locking spring of the crankshaft pulley of Figure 1;
- Figure 7 is a perspective view of a switching element of the crankshaft pulley of Figure 1;
- Figure 8 is a perspective view of a pressure plate of the crankshaft pulley of Figure 1;
- Figure 9 is a perspective view of a slide bearing support of the crankshaft pulley of Figure 1;
- FIG. 11 shows the half-section of Figure 10 when the fixed coil is energized.
- FIGS. 1 to 11 show a crankshaft pulley 1 according to the invention in various illustrations and individual parts.
- the crankshaft pulley 1 comprises a pulley track 2, which is also referred to as a pulley or belt track for a short time and serves to couple a belt of a belt drive to a belt starter generator and / or to an air conditioning compressor.
- the crankshaft pulley 1 is attached by means of a central screw 5 to a crankshaft 4 of a motor vehicle.
- the crankshaft 4 is driven by an internal combustion engine, which is also referred to as an internal combustion engine.
- a freewheel 8 an electromagnetically actuated clutch 10 and a torsional vibration damper are provided in the crankshaft pulley 1.
- Fung device 12 integrated, which includes a damping mass 14. Through the freewheel 8 rotational irregularities of the crankshaft 4 can be reduced in the belt drive.
- the central screw 5 comprises a screw head 16, from which a screw shaft 17 extends with a thread.
- the central screw 5 is screwed with the screw shaft 17 in a central threaded blind hole of the crankshaft 4.
- the freewheel 8 preferably has two locking directions and is switched according to an essential aspect of the invention via the clutch 10 and by the relative movement between the belt track 2 and the crankshaft 4.
- the belt track 2 is connected via a slip clutch 68 with a freewheel outer ring 20.
- the slip clutch 68 serves to limit torque peaks occurring during operation.
- the freewheel outer ring 20 is rotatably supported by means of a bearing device 22 on the central screw 5, which represents a freewheel inner ring.
- the bearing device 22 is designed as a double-row ball bearing with integrated seal. In the radial direction between the central screw 5 and the freewheel outer ring 20 is adjacent to the bearing device 22 of the freewheel 8 arranged in the axial direction, which is designed as a roller freewheel with cage.
- a Reibbelaglethor 26 with the clutch 10 is connected by means of a clamping piece or pressure piece 25 by the central screw 5 rotatably connected to the crankshaft 4.
- the Reibbelagzi 26 has radially outwardly a U-shaped cross-section with a base 30, of which two legs 31, 32 are each angled at right angles.
- the U-shaped cross section of the friction lining carrier 26 bounded in the crankshaft pulley 1 an annular space in which a fixed coil 35 is arranged in a magnet housing 38.
- the magnet housing 38 is integrally connected by a weld seam 39 to a screw flange 40, from which two screws 41, 42 extend in the axial direction away from the crankshaft pulley 1.
- the screws 41, 42 are used to attach the magnet housing 38 with the coil 35 therein, for example, to a crankcase.
- the magnet housing 38 with the coil 35 represents a fixedly mounted on the crankcase electromagnet.
- a friction lining 44 is fixedly mounted.
- the absorber mass 14 With the interposition of a rubber track 45th appropriate.
- a friction ring 49 is slightly spaced from the friction lining 44 in the base 30 of the friction lining carrier 26.
- the friction ring disk 49 is fastened by means of rivet connection elements 51 via leaf springs 54 to a switching element so that the friction ring disk 49 can move in the axial direction on the friction lining 44 when the coil 35 is energized.
- the switching element 55 is axially fixed by means of retaining clips 53 to a flange 60, which extends from the freewheel outer ring 20 radially outwardly.
- the switching element 55 is rotatably mounted on the freewheel outer ring 20 and bring about a rotational movement in two end positions, in which the Freiiauf 8 has different blocking directions.
- the end positions of the switching element 55 are stabilized by a locking spring 56.
- the lock must be strong enough to keep the switching element 55 with the friction ring 49 against occurring during operation rotational irregularities of the crankshaft 4.
- a sealing ring 57 is arranged between the freewheel outer ring 20 and the switching element 55, which is designed for example as an O-ring.
- a radial shaft seal 58 between the clamping piece 25 and the switching element 55 is arranged.
- a support 64 for a sliding bearing 65 is fastened with the aid of rivet connection elements 62. With the help of the sliding bearing 65, the belt track 2 is rotatably supported relative to the crankshaft 4.
- the belt track 2 is connected via the slip clutch 68 to the freewheel outer ring 20.
- the slip clutch 68 includes a pressure plate 69 which is rotatably connected to the slide bearing support 64.
- the pressure plate 69 is preloaded with the interposition of friction linings against the slide bearing support 64, that a flange 74 which extends from the belt track 2 radially inwardly, between the pressure plate 69 and the slide bearing support 64 is clamped.
- the plate spring 70 is supported in the axial direction via a securing ring 72 on the freewheel outer ring 20.
- the slip clutch 68 preferably comprises dry friction linings, which are biased by the plate spring 70 so that the slip clutch 68 can transmit the starting torque of the internal combustion engine.
- the freewheel 8 In stand-air operation, the freewheel 8 is overtaken by the belt track 2. If the electromagnet or the coil 35 is briefly energized, then the friction ring 49 is tightened and thereby brought into contact with the friction lining 44 of the friction lining carrier 26. The resulting friction torque delays the switching element 55 so that the locking of the locking spring 56 is overcome. As a result, the switching element 55 is rotated and the freewheel 8 is switched.
- the locking spring jumps in the other end position of the switching element 55 again.
- the reversed freewheel 8 takes the crankshaft 4 abruptly with the torque jump on the slip clutch 68 remains limited.
- the crankshaft 4 overtakes the belt track 2. If the electromagnet or the coil 35 is energized for a short time, then the friction lining carrier 26 takes the switching element 55 again, but this time in the other direction of rotation. The freewheel 8 is thereby switched again and completed the starting process. Then the freewheel 8 operates in the regenerative state, wherein the rotational irregularities of the crankshaft are damped.
- FIG. 4 it can be seen that 5 bearing raceways 76 for the balls of the bearing device 22 and a freewheeling surface 77 for the rollers of the freewheel 8 are formed on the screw head 16 of the central screw.
- analog raceways 81 for balls of the bearing device 22 are formed on the freewheel outer ring 20.
- freewheel ramps 82 for the rollers of the freewheel 8 are arranged.
- the flange 60 of the freewheel outer ring 20 has a plurality of circumferentially distributed through holes 83 for passing through the rivet connection elements 62.
- 20 recesses 84 are arranged distributed for locking by means of the locking spring 56 in the circumferential direction of the freewheel outer ring.
- locking spring 56 is shown alone in perspective.
- locking projections 91 are formed on one side, which engage in the mounted state in the recesses 84 of the freewheel outer ring 20.
- locking projections 92 are provided on the locking spring, which engage in the switching state 55 in the mounted state.
- the switching element 55 is shown alone in perspective.
- the switching element 55 comprises distributed in the circumferential direction a plurality of receiving portions 94 for the locking projections 92 of the locking spring 56th
- the pressure plate 69 is shown alone in perspective.
- the pressure plate 69 has substantially the shape of a circular disk, from which radially inwardly form-locking projections 98 extend.
- the positive locking lugs 98 serve to connect the pressure plate 69 in a rotationally fixed manner to the sliding bearing support 64.
- the slide bearing support 64 is shown alone in perspective.
- the sliding bearing support 64 comprises a plurality of recesses 100 distributed in the circumferential direction, which serve for the positive reception of the form-locking lugs 98, which are formed on the pressure plate 69.
- crankshaft pulley 1 is shown in half section in a state in which the coil 35 is not energized.
- the friction ring disk 49 coupled to the belt track 2 via the slip clutch 68 is spaced from the friction lining 44 in the axial direction, forming the air gap 48, which is fastened to the friction lining carrier 26.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Pulleys (AREA)
Abstract
Description
Kurbelwellenriemenscheibe Crankshaft pulley
Die Erfindung betrifft eine Kurbelwellenriemenscheibe zum Übertragen eines Drehmoments zwischen einer Kurbelwelle und einem Riementrieb, mit einem Freilauf. The invention relates to a crankshaft pulley for transmitting a torque between a crankshaft and a belt drive, with a freewheel.
Aus der deutschen Offenlegungsschrift DE 195 35 889 A1 ist eine Freilaufkupplung bekannt, die zwischen einer Riemenscheibe und einer Welle angeordnet ist. Die bekannte Freilaufkupplung eignet sich zum Antrieb eines Generators und ist Bestandteil einer Riemenscheibe, die zum Antrieb des Generators dient. Durch den Einsatz der Freilaufkupplung wird eine Eigendämpfung ermöglicht, so dass die Drehmomentübertragung des Zugmitteltriebs verbessert wird. Aus der europäischen Patentschrift EP 0 980 479 B1 ist ein Riemenantriebssystem mit einer Generatorverbindungsfreilaufkupplung bekannt, die eine Torsionswickelfeder und einen Einweg-Kupplungsmechanismus umfasst. Dadurch können die Antriebsdrehmomente der Generator-Riemenscheibe auf eine Nabe nachgiebig übertragen werden. Darüber hinaus kann die Riemenscheibe des Generators von der Nabe in eine Richtung abgekoppelt werden. Aus der deutschen Patentschrift DE 196 36 628 C1 ist ein Freilauf mit einem Klemmkörper bekannt, der durch eine sich in Umfangsrichtung eines Spalts erstreckende, elastisch verformte Spiralfeder gebildet ist. Aus der europäischen Patentschrift EP 0 782 674 B1 ist ein Kurbel- wellenentkuppler mit einer richtungsgeschalteten Kupplung bekannt, die dazu dient, selektiv Rotationskräfte zwischen einer Einbaunabe und einer Riemenscheibe zu übertragen. Aus der deutschen Offenlegungsschrift DE 1G 2005 029 351 A1 ist ein Triebrad zum Antreiben eines Nebenaggregats einer Brennkraftmaschine mit einer Dämpfungseinrichtung bekannt. From the German patent application DE 195 35 889 A1 discloses a one-way clutch is known, which is arranged between a pulley and a shaft. The known overrunning clutch is suitable for driving a generator and is part of a pulley, which serves to drive the generator. By using the one-way clutch an internal damping is made possible, so that the torque transmission of the traction mechanism is improved. European Patent EP 0 980 479 B1 discloses a belt drive system having a generator clutch freewheel clutch comprising a torsion coil spring and a one-way clutch mechanism. As a result, the driving torques of the generator pulley can be transmitted to a hub yielding. In addition, the generator pulley can be uncoupled from the hub in one direction. From the German patent DE 196 36 628 C1 a freewheel with a clamping body is known, which is formed by a circumferentially extending gap, elastically deformed coil spring. European Patent EP 0 782 674 B1 discloses a crank-shaft decoupler with a directionally switched clutch which serves to selectively transmit rotational forces between a mounting hub and a pulley. From the German patent application DE 1G 2005 029 351 A1 a drive wheel for driving an accessory of an internal combustion engine with a damping device is known.
Aufgabe der Erfindung ist es, eine bauraumneutrale Lösung für eine von der Kurbelwelle abkoppelbare Kurbelwellenriemenscheibe gemäß dem Oberbegriff des Anspruchs 1 zu schaffen. Dabei soll die erfindungsgemäße Kurbelwellenriemenscheibe insbesondere einen Start- Stopp-Betrieb, einen Standklima- und Generatorbetrieb, vorzugsweise mit einer Impulsstartmöglichkeit inklusive Kurbelwellentilger, und/oder Dämpfungen von Drehungleichförmigkeiten im Riementrieb, ermöglichen. The object of the invention is to provide a space-neutral solution for a decoupled from the crankshaft crankshaft pulley according to the preamble of claim 1. In this case, the crankshaft pulley according to the invention should in particular a start-stop operation, a stationary climate and generator operation, preferably with a pulse starting possibility including Kurbelwellentilger, and / or damping of rotational irregularities in the belt drive, allow.
Die Aufgabe ist bei einer Kurbelwellenriemenscheibe zum Übertragen eines Drehmoments zwischen einer Kurbelwelle und einem Riementrieb, mit einem Freilauf, dadurch gelöst, dass der Freilauf in der Kurbelwellenriemenscheibe mit einer elektromagnetisch betätigbaren Kupp- lung kombiniert ist. Durch den schaltbaren Freilauf können Drehungleichförmigkeiten der Kurbelwelle im Riementrieb reduziert werden. Das Umschalten des Freilaufs erfolgt mittels der elektromagnetisch betätigbaren Kupplung unter Ausnutzung der Relativbewegung zwischen der Kurbelwellenriemenscheibe und der Kurbelwelle. The object is achieved in a crankshaft pulley for transmitting a torque between a crankshaft and a belt drive, with a freewheel, characterized in that the freewheel in the crankshaft pulley with an electromagnetically operable coupling is combined. The switchable freewheel rotational irregularities of the crankshaft can be reduced in the belt drive. The switching of the freewheel takes place by means of the electromagnetically actuated clutch taking advantage of the relative movement between the crankshaft pulley and the crankshaft.
Ein bevorzugtes Ausführungsbeispiel der Kurbelwellenriemenscheibe ist dadurch gekennzeichnet, dass die Kurbelwellenriemenscheibe einen Ringraum zur Aufnahme einer feststehenden Spule aufweist. Die Spule dient zur Betätigung der Kupplung und ist vorzugsweise in einem Magnetgehäuse untergebracht, das zum Beispiel mit Hilfe eines Schraubflanschs an einem Kurbelgehäuse befestigt ist. A preferred embodiment of the crankshaft pulley is characterized in that the crankshaft pulley has an annulus for receiving a stationary coil. The coil is used to actuate the clutch and is preferably housed in a magnet housing, which is fastened to a crankcase, for example by means of a screw flange.
Ein weiteres bevorzugtes Ausführungsbeispiel der Kurbelwellenriemenscheibe ist dadurch gekennzeichnet, dass der Ringraum von einem Reibbelagträger begrenzt ist, der drehfest mit der Kurbelwelle verbunden ist. Der Reibbelagträger ist relativ zu der feststehenden Spule drehbar. A further preferred embodiment of the crankshaft pulley is characterized in that the annular space is delimited by a friction lining carrier, which is non-rotatably connected to the crankshaft. The friction lining carrier is rotatable relative to the stationary spool.
Ein weiteres bevorzugtes Ausführungsbeispiel der Kurbelwellenriemenscheibe ist dadurch gekennzeichnet, dass der Reibbelagträger zur Begrenzung des Ringraums einen U-förmigen Querschnitt mit einer Basis aufweist, von der zwei Schenkel ausgehen, die sich in axialer Richtung erstrecken. Axial bedeutet in Richtung oder parallel zur Drehachse der Kurbelwellenriemenscheibe. Die Basis des U-förmigen Querschnitts erstreckt sich vorzugsweise in radialer Richtung. Radial bedeutet quer zur Drehachse der Kurbelwellenriemenscheibe. In oder an der Basis des U-förmigen Querschnitts des Reibbelagträgers ist mindestens ein Reibbelag fest angebracht. Another preferred exemplary embodiment of the crankshaft pulley is characterized in that the friction lining carrier for limiting the annular space has a U-shaped cross section with a base, from which two legs extend, which extend in the axial direction. Axial means in the direction or parallel to the axis of rotation of the crankshaft pulley. The base of the U-shaped cross section preferably extends in the radial direction. Radial means transverse to the axis of rotation of the crankshaft pulley. At least one friction lining is fixedly mounted in or at the base of the U-shaped cross section of the friction lining carrier.
Ein weiteres bevorzugtes Ausführungsbeispiel der Kurbelwellenriemenscheibe ist dadurch gekennzeichnet, dass an dem radial äußeren Schenkel des U-förmigen Querschnitts des Reibbelagträgers mindestens eine Tilgermasse angebracht ist. Die Tilgermasse ist vorzugsweise unter Zwischenschaltung einer Gummispur an dem Reibbelagträger angebracht. Another preferred exemplary embodiment of the crankshaft pulley is characterized in that at least one absorber mass is attached to the radially outer limb of the U-shaped cross section of the friction lining carrier. The absorber mass is preferably attached to the friction lining carrier with the interposition of a rubber track.
Ein weiteres bevorzugtes Ausführungsbeispiel der Kurbelwellenriemenscheibe ist dadurch gekennzeichnet, dass an der Basis des U-förmigen Querschnitts ein Reibbelag der Kupplung vorgesehen ist. Der Reibbelag ist über den Reibbelagträger drehfest mit der Kurbelwelle verbunden. Ein weiteres bevorzugtes Ausführungsbeispiel der Kurbelwellenriemenscheibe ist dadurch gekennzeichnet, dass eine Zentralschraube, die an der Kurbelwelle befestigt ist, einen Freilaufinnenring darstellt, der unter Zwischenschaltung einer Lagereinrichtung und des Freilaufs mit einem Freilaufaußenring koppelbar ist. Der Freilauf ist vorzugsweise als Rollenfreilauf mit einem Käfig und Rampen ausgeführt. A further preferred embodiment of the crankshaft pulley is characterized in that a friction lining of the clutch is provided at the base of the U-shaped cross section. The friction lining is rotatably connected via the Reibbelagträger with the crankshaft. A further preferred embodiment of the crankshaft pulley is characterized in that a central screw which is fixed to the crankshaft, a freewheel inner ring is, which can be coupled with the interposition of a bearing device and the freewheel with a freewheel outer ring. The freewheel is preferably designed as a roller freewheel with a cage and ramps.
Ein weiteres bevorzugtes Ausführungsbeispiel der Kurbelwellenriemenscheibe ist dadurch gekennzeichnet, dass ein Umschaltelement für den Freilauf auf dem Freilaufaußenring axial fixiert und zwischen zwei Endpositionen verdrehbar gelagert ist, in denen der Freilauf unterschiedliche Sperrrichtungen aufweist. Das Umschaltelement wird vorzugsweise durch eine Arretierfeder in seinen Endpositionen arretiert. A further preferred embodiment of the crankshaft pulley is characterized in that a switching element for the freewheel on the freewheel outer ring is fixed axially and rotatably supported between two end positions, in which the freewheel has different blocking directions. The switching element is preferably locked by a locking spring in its end positions.
Ein weiteres bevorzugtes Ausführungsbeispiel der Kurbelwellenriemenscheibe ist dadurch gekennzeichnet, dass eine Reibringscheibe mit Hilfe von Blattfedern an dem Umschaltelement angebracht ist. Die Blattfedern ermöglichen eine axiale Bewegung der Reibringscheibe auf die Basis des U-förmigen Querschnitts des Reibbelagträgers zu, wenn die feststehende Spule bestromt wird, um die Kupplung elektromagnetisch zu betätigen. Another preferred embodiment of the crankshaft pulley is characterized in that a friction ring is mounted by means of leaf springs on the switching element. The leaf springs allow axial movement of the friction ring to the base of the U-shaped cross section of the friction lining carrier when the fixed coil is energized to electromagnetically actuate the clutch.
Ein weiteres bevorzugtes Ausführungsbeispiel der Kurbelwellenriemenscheibe ist dadurch gekennzeichnet, dass eine Riemenscheibenspur über eine Rutschkupplung mit dem Freilaufaußenring koppelbar ist. Die Rutschkupplung umfasst Reibbeläge, die vorzugsweise durch eine Tellerfeder gegeneinander vorgespannt sind. A further preferred embodiment of the crankshaft pulley is characterized in that a pulley track is coupled via a slip clutch with the freewheel outer ring. The slip clutch comprises friction linings, which are preferably biased against each other by a disc spring.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein Ausführungsbeispiel im Einzelnen beschrieben ist. Es zeigen: Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, an embodiment is described in detail. Show it:
Figur 1 eine erfindungsgemäße Kurbelwellenriemenscheibe im Längsschnitt durch die 1 shows a crankshaft pulley according to the invention in a longitudinal section through the
Kurbelwelle; Crankshaft;
Figur 2 ein dreidimensionales Schnittbild der Kurbelwellenriemenscheibe aus Figur 1 ; Figure 2 is a three-dimensional sectional view of the crankshaft pulley of Figure 1;
Figur 3 ein weiteres dreidimensionales Schnittbild der Kurbelwellenriemenscheibe aus Figure 3 is another three-dimensional sectional view of the crankshaft pulley
Figur 1 ; Figur 4 eine perspektivische Darstellung einer Zentralschraube der Kurbelwellenriemenscheibe aus Figur 1 ; FIG. 1; Figure 4 is a perspective view of a central screw of the crankshaft pulley of Figure 1;
Figur 5 eine perspektivische Darstellung eines Freilaufaußenrings der Kurbelweilenriemenscheibe aus Figur 1 ; Figure 5 is a perspective view of a freewheel outer ring of the crank pulley of Figure 1;
Figur 6 eine perspektivische Darstellung einer Arretierfeder der Kurbelwellenriemenscheibe aus Figur 1 ; Figure 6 is a perspective view of a locking spring of the crankshaft pulley of Figure 1;
Figur 7 eine perspektivische Darstellung eines Umschaltelements der Kurbelwellenriemenscheibe aus Figur 1 ; Figure 7 is a perspective view of a switching element of the crankshaft pulley of Figure 1;
Figur 8 eine perspektivische Darstellung einer Druckplatte der Kurbelwellenriemenscheibe aus Figur 1 ; Figure 8 is a perspective view of a pressure plate of the crankshaft pulley of Figure 1;
Figur 9 eine perspektivische Darstellung einer Gleitlagerstütze der Kurbelwellenriemenscheibe aus Figur 1 ; Figure 9 is a perspective view of a slide bearing support of the crankshaft pulley of Figure 1;
Figur 10 die Kurbelwellenriemenscheibe aus Figur 1 im Halbschnitt in einem stromlosen 10 shows the crankshaft pulley of Figure 1 in half section in a de-energized
Zustand einer feststehenden Spule und Condition of a fixed coil and
Figur 11 den Halbschnitt aus Figur 10, wenn die feststehende Spule bestromt ist. 11 shows the half-section of Figure 10 when the fixed coil is energized.
In den Figuren 1 bis 11 ist eine erfindungsgemäße Kurbelwellenriemenscheibe 1 in verschiedenen Darstellungen und Einzelteilen dargestellt. Die Kurbelwellenriemenscheibe 1 umfasst eine Riemenscheibenspur 2, die verkürzt auch als Riemenscheibe oder Riemenspur bezeichnet wird und dazu dient, einen Riemen eines Riementriebs mit einem Riemenstartergenerator und/oder mit einem Klimakompressor zu koppeln. Die Kurbelwellenriemenscheibe 1 ist mit Hilfe einer Zentralschraube 5 an einer Kurbelwelle 4 eines Kraftfahrzeugs angebracht. Die Kurbelwelle 4 ist durch eine Brennkraftmaschine angetrieben, die auch als Verbrennungsmotor bezeichnet wird. FIGS. 1 to 11 show a crankshaft pulley 1 according to the invention in various illustrations and individual parts. The crankshaft pulley 1 comprises a pulley track 2, which is also referred to as a pulley or belt track for a short time and serves to couple a belt of a belt drive to a belt starter generator and / or to an air conditioning compressor. The crankshaft pulley 1 is attached by means of a central screw 5 to a crankshaft 4 of a motor vehicle. The crankshaft 4 is driven by an internal combustion engine, which is also referred to as an internal combustion engine.
Gemäß einem wesentlichen Aspekt der Erfindung sind in die Kurbelwellenriemenscheibe 1 ein Freilauf 8, eine elektromagnetisch betätigbare Kupplung 10 und eine Drehschwingungsdämp- fungseinrichtung 12 integriert, die eine Tilgermasse 14 umfasst. Durch den Freilauf 8 können Drehungleichförmigkeiten der Kurbelwelle 4 im Riementrieb reduziert werden. According to one essential aspect of the invention, a freewheel 8, an electromagnetically actuated clutch 10 and a torsional vibration damper are provided in the crankshaft pulley 1. Fung device 12 integrated, which includes a damping mass 14. Through the freewheel 8 rotational irregularities of the crankshaft 4 can be reduced in the belt drive.
Die Zentralschraube 5 umfasst einen Schraubenkopf 16, von dem ein Schraubenschaft 17 mit einem Gewinde ausgeht. Die Zentralschraube 5 ist mit dem Schraubenschaft 17 in ein zentrales Gewindesackloch der Kurbelwelle 4 eingeschraubt. Der Freilauf 8 hat vorzugsweise zwei Sperrrichtungen und wird gemäß einem wesentlichen Aspekt der Erfindung über die Kupplung 10 und durch die Relativbewegung zwischen der Riemenspur 2 und der Kurbelwelle 4 geschaltet. Dabei ist die Riemenspur 2 über eine Rutschkupplung 68 mit einem Freilaufaußenring 20 verbunden. Die Rutschkupplung 68 dient dazu, im Betrieb auftretende Drehmomentspitzen zu begrenzen. The central screw 5 comprises a screw head 16, from which a screw shaft 17 extends with a thread. The central screw 5 is screwed with the screw shaft 17 in a central threaded blind hole of the crankshaft 4. The freewheel 8 preferably has two locking directions and is switched according to an essential aspect of the invention via the clutch 10 and by the relative movement between the belt track 2 and the crankshaft 4. The belt track 2 is connected via a slip clutch 68 with a freewheel outer ring 20. The slip clutch 68 serves to limit torque peaks occurring during operation.
Der Freilaufaußenring 20 ist mit Hilfe einer Lagereinrichtung 22 drehbar auf der Zentralschraube 5 gelagert, die einen Freilaufinnenring darstellt. Die Lagereinrichtung 22 ist als doppelreihiges Kugellager mit integrierter Abdichtung ausgeführt. In radialer Richtung zwischen der Zentralschraube 5 und dem Freilaufaußenring 20 ist in axialer Richtung benachbart zu der Lagereinrichtung 22 der Freilauf 8 angeordnet, der als Rollenfreilauf mit Käfig ausgeführt ist. The freewheel outer ring 20 is rotatably supported by means of a bearing device 22 on the central screw 5, which represents a freewheel inner ring. The bearing device 22 is designed as a double-row ball bearing with integrated seal. In the radial direction between the central screw 5 and the freewheel outer ring 20 is adjacent to the bearing device 22 of the freewheel 8 arranged in the axial direction, which is designed as a roller freewheel with cage.
Ein Reibbelagträger 26 mit der Kupplung 10 ist mit Hilfe eines Klemmstücks oder Druckstücks 25 durch die Zentralschraube 5 drehfest mit der Kurbelwelle 4 verbunden. Der Reibbelagträger 26 weist radial außen einen U-förmigen Querschnitt mit einer Basis 30 auf, von der zwei Schenkel 31 , 32 jeweils im rechten Winkel abgewinkelt sind. Der U-förmige Querschnitt des Reibbelagträgers 26 begrenzt in der Kurbelwellenriemenscheibe 1 einen Ringraum, in welchem eine feststehende Spule 35 in einem Magnetgehäuse 38 angeordnet ist. A Reibbelagträger 26 with the clutch 10 is connected by means of a clamping piece or pressure piece 25 by the central screw 5 rotatably connected to the crankshaft 4. The Reibbelagträger 26 has radially outwardly a U-shaped cross-section with a base 30, of which two legs 31, 32 are each angled at right angles. The U-shaped cross section of the friction lining carrier 26 bounded in the crankshaft pulley 1 an annular space in which a fixed coil 35 is arranged in a magnet housing 38.
Das Magnetgehäuse 38 ist durch eine Schweißnaht 39 stoffschlüssig mit einem Schraubflansch 40 verbunden, von dem sich zwei Schrauben 41 , 42 in axialer Richtung weg von der Kurbelwellenriemenscheibe 1 erstrecken. Die Schrauben 41 , 42 dienen dazu, das Magnetgehäuse 38 mit der darin befindlichen Spule 35 zum Beispiel an einem Kurbelgehäuse zu befestigen. Das Magnetgehäuse 38 mit der Spule 35 stellt einen fest am Kurbelgehäuse montierten Elektromagneten dar. The magnet housing 38 is integrally connected by a weld seam 39 to a screw flange 40, from which two screws 41, 42 extend in the axial direction away from the crankshaft pulley 1. The screws 41, 42 are used to attach the magnet housing 38 with the coil 35 therein, for example, to a crankcase. The magnet housing 38 with the coil 35 represents a fixedly mounted on the crankcase electromagnet.
In beziehungsweise an der Basis 30 des U-förmigen Querschnitts des Reibbelagträgers 26 ist ein Reibbelag 44 fest angebracht. An dem freien Schenkel 32 des U-förmigen Querschnitts des Reibbelagträgers 26 ist die Tilgermasse 14 unter Zwischenschaltung einer Gummispur 45 angebracht. In axialer Richtung ist unter Ausbildung eines Luftspalts 48 eine Reibringscheibe 49 geringfügig von dem Reibbelag 44 in der Basis 30 des Reibbelagträgers 26 beabstandet. Die Reibringscheibe 49 ist mit Hilfe von Nietverbindungselementen 51 über Blattfedern 54 an einem Umschaltelement so befestigt, dass sich die Reibringscheibe 49 bei einer Bestromung der Spule 35 in axialer Richtung auf den Reibbelag 44 zu bewegen kann. In or on the base 30 of the U-shaped cross section of the friction lining carrier 26, a friction lining 44 is fixedly mounted. On the free leg 32 of the U-shaped cross section of the friction lining carrier 26, the absorber mass 14 with the interposition of a rubber track 45th appropriate. In the axial direction, while forming an air gap 48, a friction ring 49 is slightly spaced from the friction lining 44 in the base 30 of the friction lining carrier 26. The friction ring disk 49 is fastened by means of rivet connection elements 51 via leaf springs 54 to a switching element so that the friction ring disk 49 can move in the axial direction on the friction lining 44 when the coil 35 is energized.
Das Umschaltelement 55 ist mit Hilfe von Haltebügeln 53 axial fest an einem Flansch 60 angebracht, der sich von dem Freilaufaußenring 20 radial nach außen erstreckt. Das Umschaltelement 55 ist auf dem Freilaufaußenring 20 drehbar gelagert und über eine Drehbewegung in zwei Endpositionen zu bringen, in denen der Freiiauf 8 unterschiedliche Sperrrichtungen aufweist. Die Endpositionen des Umschaltelements 55 sind durch eine Arretierfeder 56 stabilisiert. Dabei muss die Arretierung stark genug sein, um das Umschaltelement 55 mit der Reibringscheibe 49 gegen im Betrieb auftretende Drehungleichförmigkeiten der Kurbelwelle 4 zu halten. The switching element 55 is axially fixed by means of retaining clips 53 to a flange 60, which extends from the freewheel outer ring 20 radially outwardly. The switching element 55 is rotatably mounted on the freewheel outer ring 20 and bring about a rotational movement in two end positions, in which the Freiiauf 8 has different blocking directions. The end positions of the switching element 55 are stabilized by a locking spring 56. The lock must be strong enough to keep the switching element 55 with the friction ring 49 against occurring during operation rotational irregularities of the crankshaft 4.
Zu Dichtzwecken ist zwischen dem Freilaufaußenring 20 und dem Umschaltelement 55 ein Dichtring 57 angeordnet, der zum Beispiel als O-Ring ausgeführt ist. Radial innerhalb der Arretierfeder 56 ist ein Radialwellendichtring 58 zwischen dem Klemmstück 25 und dem Umschaltelement 55 angeordnet. For sealing purposes, a sealing ring 57 is arranged between the freewheel outer ring 20 and the switching element 55, which is designed for example as an O-ring. Radially within the locking spring 56, a radial shaft seal 58 between the clamping piece 25 and the switching element 55 is arranged.
An dem Flansch 60 des Freilaufaußenrings 20 ist mit Hilfe von Nietverbindungselementen 62 eine Stütze 64 für ein Gleitlager 65 befestigt. Mit Hilfe des Gleitlagers 65 ist die Riemenspur 2 relativ zu der Kurbelwelle 4 drehbar gelagert. Dabei ist die Riemenspur 2 über die Rutschkupplung 68 mit dem Freilaufaußenring 20 verbunden. Die Rutschkupplung 68 umfasst eine Druckplatte 69, die drehfest mit der Gleitlagerstütze 64 verbunden ist. Durch eine Tellerfeder 70 ist die Druckplatte 69 unter Zwischenschaltung von Reibbelägen so gegen die Gleitlagerstütze 64 vorgespannt, dass ein Flansch 74, der sich von der Riemenspur 2 radial nach innen erstreckt, zwischen der Druckplatte 69 und der Gleitlagerstütze 64 eingeklemmt wird. Die Tellerfeder 70 ist in axialer Richtung über einen Sicherungsring 72 an dem Freilaufaußenring 20 abgestützt. On the flange 60 of the freewheel outer ring 20, a support 64 for a sliding bearing 65 is fastened with the aid of rivet connection elements 62. With the help of the sliding bearing 65, the belt track 2 is rotatably supported relative to the crankshaft 4. The belt track 2 is connected via the slip clutch 68 to the freewheel outer ring 20. The slip clutch 68 includes a pressure plate 69 which is rotatably connected to the slide bearing support 64. By a plate spring 70, the pressure plate 69 is preloaded with the interposition of friction linings against the slide bearing support 64, that a flange 74 which extends from the belt track 2 radially inwardly, between the pressure plate 69 and the slide bearing support 64 is clamped. The plate spring 70 is supported in the axial direction via a securing ring 72 on the freewheel outer ring 20.
Die Rutschkupplung 68 umfasst vorzugsweise trockene Reibbeläge, die über die Tellerfeder 70 so vorgespannt sind, dass die Rutschkupplung 68 das Startmoment der Brennkraftmaschine übertragen kann. Im Stand-Klimabetrieb wird der Freilauf 8 durch die Riemenspur 2 überholt. Wenn dabei der Elektromagnet beziehungsweise die Spule 35 kurz bestromt wird, dann wird die Reibringscheibe 49 angezogen und dadurch mit dem Reibbelag 44 des Reibbelagträgers 26 in Berührung gebracht. Das entstehende Reibmoment verzögert das Umschaltelement 55 so, dass die Arretierung der Arretierfeder 56 überwunden wird. Dadurch verdreht sich das Umschaltelement 55 und der Freilauf 8 wird umgeschaltet. The slip clutch 68 preferably comprises dry friction linings, which are biased by the plate spring 70 so that the slip clutch 68 can transmit the starting torque of the internal combustion engine. In stand-air operation, the freewheel 8 is overtaken by the belt track 2. If the electromagnet or the coil 35 is briefly energized, then the friction ring 49 is tightened and thereby brought into contact with the friction lining 44 of the friction lining carrier 26. The resulting friction torque delays the switching element 55 so that the locking of the locking spring 56 is overcome. As a result, the switching element 55 is rotated and the freewheel 8 is switched.
Die Arretierfeder springt in der anderen Endposition des Umschaltelements 55 wieder ein. Der umgeschaltete Freilauf 8 nimmt die Kurbelwelle 4 schlagartig mit, wobei der Momentensprung über die Rutschkupplung 68 begrenzt bleibt. Wenn die Brennkraftmaschine läuft, überholt die Kurbelwelle 4 die Riemenspur 2. Wird der Elektromagnet beziehungsweise die Spule 35 dabei kurzzeitig bestromt, so nimmt der Reibbelagträger 26 das Umschaltelement 55 wieder mit, aber diesmal in der anderen Drehrichtung. Der Freilauf 8 wird dadurch wieder umgeschaltet und der Startvorgang abgeschlossen. Dann arbeitet der Freilauf 8 im generatorischen Zustand, wobei die Drehungleichförmigkeiten der Kurbelwelle gedämpft werden. The locking spring jumps in the other end position of the switching element 55 again. The reversed freewheel 8 takes the crankshaft 4 abruptly with the torque jump on the slip clutch 68 remains limited. When the internal combustion engine is running, the crankshaft 4 overtakes the belt track 2. If the electromagnet or the coil 35 is energized for a short time, then the friction lining carrier 26 takes the switching element 55 again, but this time in the other direction of rotation. The freewheel 8 is thereby switched again and completed the starting process. Then the freewheel 8 operates in the regenerative state, wherein the rotational irregularities of the crankshaft are damped.
In Figur 4 sieht man, dass an dem Schraubenkopf 16 der Zentralschraube 5 Lagerlaufbahnen 76 für die Kugeln der Lagereinrichtung 22 und eine Freilauffläche 77 für die Rollen des Freilaufs 8 ausgebildet sind. In FIG. 4 it can be seen that 5 bearing raceways 76 for the balls of the bearing device 22 and a freewheeling surface 77 for the rollers of the freewheel 8 are formed on the screw head 16 of the central screw.
In Figur 5 sieht man, dass an dem Freilaufaußenring 20 analoge Laufbahnen 81 für Kugeln der Lagereinrichtung 22 ausgebildet sind. In axialer Richtung benachbart zu den Lagerlaufbahnen 81 sind Freilauframpen 82 für die Rollen des Freilaufs 8 angeordnet. Darüber hinaus sieht man in Figur 5, dass der Flansch 60 des Freilaufaußenrings 20 mehrere in Umfangsrich- tung verteilt angeordnete Durchgangslöcher 83 zum Durchführen der Nietverbindungselemente 62 aufweist. Schließlich sind an dem Freilaufaußenring 20 Aussparungen 84 für die Arretierung mit Hilfe der Arretierfeder 56 in Umfangsrichtung verteilt angeordnet. In FIG. 5, it can be seen that analog raceways 81 for balls of the bearing device 22 are formed on the freewheel outer ring 20. In the axial direction adjacent to the bearing raceways 81 freewheel ramps 82 for the rollers of the freewheel 8 are arranged. Moreover, it can be seen in FIG. 5 that the flange 60 of the freewheel outer ring 20 has a plurality of circumferentially distributed through holes 83 for passing through the rivet connection elements 62. Finally, 20 recesses 84 are arranged distributed for locking by means of the locking spring 56 in the circumferential direction of the freewheel outer ring.
In Figur 6 ist die Arretierfeder 56 allein perspektivisch dargestellt. An der Arretierfeder 56 sind auf einer Seite Arretiervorsprünge 91 ausgebildet, die im montierten Zustand in die Aussparungen 84 des Freilaufaußenrings 20 eingreifen. Auf der anderen Seite sind an der Arretierfeder 56 Arretiervorsprünge 92 vorgesehen, die im montierten Zustand in das Umschaltelement 55 eingreifen. In Figure 6, the locking spring 56 is shown alone in perspective. On the locking spring 56 locking projections 91 are formed on one side, which engage in the mounted state in the recesses 84 of the freewheel outer ring 20. On the other side 56 locking projections 92 are provided on the locking spring, which engage in the switching state 55 in the mounted state.
In Figur 7 ist das Umschaltelement 55 allein perspektivisch dargestellt. Das Umschaltelement 55 umfasst in Umfangsrichtung verteilt mehrere Aufnahmebereiche 94 für die Arretiervorsprünge 92 der Arretierfeder 56. ln Figur 8 ist die Druckplatte 69 allein perspektivisch dargestellt. Die Druckplatte 69 hat im Wesentlichen die Gestalt einer Kreisringscheibe, von der sich radial nach innen Formschlussnasen 98 erstrecken. Die Formschlussnasen 98 dienen dazu, die Druckplatte 69 drehfest mit der Gleitlagerstütze 64 zu verbinden. In Figure 7, the switching element 55 is shown alone in perspective. The switching element 55 comprises distributed in the circumferential direction a plurality of receiving portions 94 for the locking projections 92 of the locking spring 56th In Figure 8, the pressure plate 69 is shown alone in perspective. The pressure plate 69 has substantially the shape of a circular disk, from which radially inwardly form-locking projections 98 extend. The positive locking lugs 98 serve to connect the pressure plate 69 in a rotationally fixed manner to the sliding bearing support 64.
In Figur 9 ist die Gleitlagerstütze 64 allein perspektivisch dargestellt. Die Gleitlagerstütze 64 umfasst in Umfangsrichtung verteilt mehrere Ausnehmungen 100, die zur formschlüssigen Aufnahme der Formschlussnasen 98 dienen, die an der Druckplatte 69 ausgebildet sind. In Figure 9, the slide bearing support 64 is shown alone in perspective. The sliding bearing support 64 comprises a plurality of recesses 100 distributed in the circumferential direction, which serve for the positive reception of the form-locking lugs 98, which are formed on the pressure plate 69.
In Figur 10 ist die Kurbelwellenriemenscheibe 1 im Halbschnitt in einem Zustand dargestellt, in welchem die Spule 35 nicht bestromt ist. In diesem Zustand ist die über die Rutschkupplung 68 mit der Riemenspur 2 gekoppelte Reibringscheibe 49 unter Ausbildung des Luftspalts 48 in axialer Richtung von dem Reibbelag 44 beabstandet, der an dem Reibbelagträger 26 befestigt ist. In Figure 10, the crankshaft pulley 1 is shown in half section in a state in which the coil 35 is not energized. In this state, the friction ring disk 49 coupled to the belt track 2 via the slip clutch 68 is spaced from the friction lining 44 in the axial direction, forming the air gap 48, which is fastened to the friction lining carrier 26.
In Figur 11 ist durch Pfeile 105 der Magnetfluss angedeutet, der bei einer Bestromung der Spule 35 dazu führt, dass die Reibringscheibe 49 mit dem Reibbelag 44 in Berührung kommt. Dadurch kann auf einfache Art und Weise ein Umschalten des Freilaufs 8 bewirkt werden. In Figure 11, the magnetic flux is indicated by arrows 105, which leads to energization of the coil 35 causes the friction ring 49 comes into contact with the friction lining 44. This can be effected in a simple manner switching the freewheel 8.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
Kurbelwellenriemenscheibe Crankshaft pulley
Riemenscheibenspur Pulley groove
Kurbelwelle crankshaft
Zentralschraube central screw
Freilauf freewheel
Kupplung clutch
Drehschwingungsdämpfungseinrichtung Torsional vibration damping device
Tilgermasse absorber mass
Schraubenkopf screw head
Schraubenschaft screw shaft
Freilaufaußenring Freewheel outer ring
Lagereinrichtung Storage facility
Klemmstück clamp
Reibbelagträger friction lining
Basis Base
Schenkel leg
Schenkel leg
Spule Kitchen sink
Magnetgehäuse magnet housing
Schweißnaht Weld
Schraubflansch screw flange
Schraube screw
Schraube screw
Reibbelag friction lining
Gummispur rubber track
Luftspalt air gap
Reibringscheibe Reibringscheibe
Nietverbindungselement Nietverbindungselement
Haltebügel headband
Blattfeder leaf spring
Umschaltelement switching
Arretierfeder O-Ring detent O-ring
Radialwellendichtring Flansch Radial shaft seal flange
Nietverbindungselement Stütze Rivet connection support
Gleitlager bearings
Rutschkupplung Druckplatte Slip clutch pressure plate
Tellerfeder Belleville spring
Sicherungsring circlip
Flansch flange
Lagerlaufbahnen Freilauffläche Lagerlaufbahnen freewheeling surface
Lagerlaufbahnen Freilauframpen Lagerlaufbahnen freewheel ramps
Durchgangslöcher Aussparungen ' Arretiervorsprünge Arretiervorsprünge Aufnahmebereich Formschlussnasen Ausnehmungen Magnetfluss Through holes Recesses' Locking projections Locking projections Receptacle Recessing lugs Recesses Magnetic flux
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201080060101.8A CN102695892B (en) | 2009-12-30 | 2010-12-15 | Crankshaft pulley |
| DE112010005056T DE112010005056A5 (en) | 2009-12-30 | 2010-12-15 | Crankshaft pulley |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009060963.6 | 2009-12-30 | ||
| DE102009060963 | 2009-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011079835A1 true WO2011079835A1 (en) | 2011-07-07 |
Family
ID=43666184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2010/001473 Ceased WO2011079835A1 (en) | 2009-12-30 | 2010-12-15 | Crankshaft pulley |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102695892B (en) |
| DE (2) | DE102010054555A1 (en) |
| WO (1) | WO2011079835A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20120358A1 (en) * | 2012-04-23 | 2013-10-24 | Dayco Europe Srl | ENGINEERED ENGAGEMENT FOR AN INTERNAL COMBUSTION ENGINE ACCESSORY |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084660A1 (en) * | 2015-11-20 | 2017-05-26 | Schaeffler Technologies AG & Co. KG | Crankshaft pulley |
| CN106567885A (en) * | 2016-11-14 | 2017-04-19 | 无锡市乾泰金属构件厂 | High strength durable automobile crankshaft |
| DE102017115218B4 (en) * | 2017-07-07 | 2021-03-25 | Schaeffler Technologies AG & Co. KG | Shift cable unit with an axis of rotation for an internal combustion engine |
| CN109236989A (en) * | 2018-11-30 | 2019-01-18 | 重庆长安汽车股份有限公司 | A kind of electromagnetic clutch type overrunning belt pulley and starting-generating integrated motor |
| CN114810942A (en) * | 2021-01-18 | 2022-07-29 | 舍弗勒技术股份两合公司 | Vibration reduction transmission mechanism and power transmission system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9419129U1 (en) * | 1994-11-29 | 1995-01-26 | Westfalia Becorit Industrietechnik GmbH, 44534 Lünen | Continuous crusher, especially continuous jaw crusher |
| DE19535889A1 (en) | 1995-09-27 | 1997-04-03 | Schaeffler Waelzlager Kg | Vibration damping device with freewheel clutch |
| DE19636628C1 (en) | 1996-09-10 | 1998-04-23 | Freudenberg Carl Fa | Freewheel mechanism for belt drive decoupled from crankshaft of IC engine |
| EP0782674B1 (en) | 1994-10-14 | 1999-04-28 | Tesma International Inc | Crankshaft decoupler |
| EP0980479B1 (en) | 1997-05-07 | 2003-08-27 | Litens Automotive Partnership | Serpentine drive system with improved over-running alternator decoupler |
| EP1396662A1 (en) * | 2002-09-06 | 2004-03-10 | DAYCO EUROPE S.r.l. | An integrated pulley-torsional damper assembly |
| JP2004245316A (en) * | 2003-02-13 | 2004-09-02 | Ntn Corp | Rotation transmission mechanism |
| DE102005029351A1 (en) | 2004-07-02 | 2006-01-26 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Driving wheel for internal combustion engine, has damping mechanism with torsion-vibration damper that operates without lubricant, and damper retainer with spring channels in which elbow spring made of plastic is guided as spring brake |
| JP2008101586A (en) * | 2006-10-20 | 2008-05-01 | Mitsubishi Electric Corp | Motor generator for vehicle |
-
2010
- 2010-12-15 CN CN201080060101.8A patent/CN102695892B/en not_active Expired - Fee Related
- 2010-12-15 DE DE102010054555A patent/DE102010054555A1/en not_active Withdrawn
- 2010-12-15 DE DE112010005056T patent/DE112010005056A5/en not_active Withdrawn
- 2010-12-15 WO PCT/DE2010/001473 patent/WO2011079835A1/en not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0782674B1 (en) | 1994-10-14 | 1999-04-28 | Tesma International Inc | Crankshaft decoupler |
| DE9419129U1 (en) * | 1994-11-29 | 1995-01-26 | Westfalia Becorit Industrietechnik GmbH, 44534 Lünen | Continuous crusher, especially continuous jaw crusher |
| DE19535889A1 (en) | 1995-09-27 | 1997-04-03 | Schaeffler Waelzlager Kg | Vibration damping device with freewheel clutch |
| DE19636628C1 (en) | 1996-09-10 | 1998-04-23 | Freudenberg Carl Fa | Freewheel mechanism for belt drive decoupled from crankshaft of IC engine |
| EP0980479B1 (en) | 1997-05-07 | 2003-08-27 | Litens Automotive Partnership | Serpentine drive system with improved over-running alternator decoupler |
| EP1396662A1 (en) * | 2002-09-06 | 2004-03-10 | DAYCO EUROPE S.r.l. | An integrated pulley-torsional damper assembly |
| JP2004245316A (en) * | 2003-02-13 | 2004-09-02 | Ntn Corp | Rotation transmission mechanism |
| DE102005029351A1 (en) | 2004-07-02 | 2006-01-26 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Driving wheel for internal combustion engine, has damping mechanism with torsion-vibration damper that operates without lubricant, and damper retainer with spring channels in which elbow spring made of plastic is guided as spring brake |
| JP2008101586A (en) * | 2006-10-20 | 2008-05-01 | Mitsubishi Electric Corp | Motor generator for vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20120358A1 (en) * | 2012-04-23 | 2013-10-24 | Dayco Europe Srl | ENGINEERED ENGAGEMENT FOR AN INTERNAL COMBUSTION ENGINE ACCESSORY |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112010005056A5 (en) | 2012-10-11 |
| CN102695892A (en) | 2012-09-26 |
| DE102010054555A1 (en) | 2011-07-07 |
| CN102695892B (en) | 2015-02-04 |
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