WO2015043587A1

WO2015043587A1 - Centrifugal pendulum device

Info

Publication number: WO2015043587A1
Application number: PCT/DE2014/200423
Authority: WO
Inventors: Parviz Movlazada
Original assignee: Schaeffler Technologies AG & Co. KG
Priority date: 2013-09-26
Filing date: 2014-08-22
Publication date: 2015-04-02
Also published as: DE102014216752A1; DE112014004404A5; CN105579738B; CN105579738A

Abstract

The invention relates to a centrifugal pendulum device (1), in particular a trapezoidal centrifugal pendulum device, for a damping device and/or a torque-transmitting device, in particular for a drivetrain of a motor vehicle, having a pendulum mass carrier (10) which is rotatable about an axis of rotation of the centrifugal pendulum device (1) and on which there is suspended a multiplicity of pendulum masses (20) which are movable relative to the pendulum mass carrier (10) in the circumferential direction and in the radial direction of the centrifugal pendulum device (1), wherein furthermore, at least one pendulum mass (20) is suspended on the pendulum mass carrier (10) so as to be displaceable in an axial direction in a manner dependent on a behaviour of the centrifugal pendulum device (1). The invention also relates to a damping device or a torque-transmitting device in particular for a drivetrain of a motor vehicle, wherein the damping device or the torque-transmitting device has a centrifugal pendulum device (1) according to the invention.

Description

Centrifugal pendulum device

The present invention relates to a centrifugal pendulum device, in particular a trapezoidal centrifugal pendulum device, for a damper device and / or a torque transmission device, in particular for a drive train of a motor vehicle. Furthermore, the invention relates to a damper device or a torque transmission device, in particular for a drive train of a motor vehicle; z. Example, a centrifugal pendulum, a torque converter, a clutch, a clutch assembly, a damper, a torsional vibration damper, a turbine damper, a pump damper, a two-mass converter or a dual mass flywheel, or an assembly and / or a combination thereof, wherein the damper device or the torque transmitting device a Having centrifugal pendulum device according to the invention.

On waves of periodically operating machines, eg. B. on a crankshaft of an internal combustion engine of a motor vehicle, occur in a rotational movement of the shaft torsional vibrations, wherein the frequencies of which changes with a speed of the shaft. By combustion processes of the internal combustion engine torsional vibrations in the drive train of the motor vehicle are excited, in particular in a train operation. To reduce these torsional vibrations, a centrifugal pendulum can be provided, which can essentially or substantially erase the torsional vibrations over a larger speed range of the internal combustion engine, ideally over its entire speed range.

A centrifugal pendulum is based on the physical principle that its pendulum masses are endeavored by centrifugal force to orbit a rotation axis (shaft, s. O.) When initiating a rotational movement about this axis in the greatest possible distance. The torsional vibrations in the shaft lead to a pendulum relative movement of the pendulum masses, the centrifugal pendulum has a natural frequency proportional to the rotational speed, so that torsional vibrations with frequencies that are proportional to the rotational speed of the shaft in the same way, can be reversed over a wide speed range.

A centrifugal pendulum includes, inter alia, a plurality of pendulum masses which are suspended by means of guide elements on a rotatable pendulum mass carrier and along predetermined guideways can perform a relative movement to the pendulum mass carrier in order to take a variable distance to the axis of rotation of the pendulum mass carrier. As a consequence of the torsional vibrations in the drive train, the pendulum masses are excited to oscillate, whereby their centers of gravity are permanently and temporally offset to the torsional vibrations in the drive train, which causes a damping of the torsional vibrations in the drive train by a mechanical feedback. An efficient damping can be done by an appropriate vote of the pendulum masses and their tracks.

The problem with centrifugal pendulum devices is wear and noise. This is caused by mechanical stops of the pendulum masses on the pendulum mass carriers of centrifugal pendulum devices. In the prior art, this is attempted to counteract in that the axial stops of the pendulum masses are not prevented, but their results are combated, but this has little impact on wear and noise. Although a variant with spring-supported pendulum masses can prevent the axial stops of the pendulum masses on the pendulum mass carrier, but also has a comparatively strong influence on a Tilgerordnung, ie a damping of the torsional vibrations.

It is an object of the invention to provide an improved centrifugal pendulum device for a damper device and / or a torque transmission device, in particular for a drive train of a motor vehicle. Furthermore, it is an object of the invention to provide a correspondingly improved damper device and / or an improved torque transmission device. - Here, the centrifugal pendulum device according to the invention is intended to prevent mechanical attacks of pendulum masses on a pendulum mass carrier and reduce the emergence of impact energy, with a Tilgerordnung should be little influenced. Furthermore, the improved centrifugal pendulum device should be comparatively small and inexpensive in their manufacture, their installation and their operation.

The object of the invention is by means of a centrifugal pendulum device, in particular a trapezoidal centrifugal pendulum device, for a damper device and / or a torque transmission device, in particular for a drive train of a motor vehicle, according to claim 1; and by means of a damper device and / or a torque transmission device, preferably for a drive train of a motor vehicle, according to claim 10. Advantageous developments, additional features and / or advantages of the invention will become apparent from the dependent claims and the description below.

The centrifugal pendulum device according to the invention has at least one pendulum mass carrier rotatable about a rotation axis of the centrifugal pendulum device, on which a plurality of pendulum masses movable relative to the pendulum mass carrier in the circumferential direction and in the radial direction of the centrifugal pendulum device are suspended. According to the invention Furthermore, at least one pendulum mass of the centrifugal pendulum device in the axial direction, in particular depending on a behavior of the centrifugal pendulum device displaced suspended on the pendulum mass carrier, stored or supported Here, the centrifugal pendulum device and / or the pendulum mass can be designed such that the displacement of the pendulum mass relative to the pendulum mass carrier in the axial direction in dependence from a speed of the centrifugal pendulum device takes place.

The pendulum mass may preferably be moved away from the pendulum mass carrier substantially in a load case of the centrifugal pendulum device. Furthermore, the pendulum mass can preferably be moved towards the pendulum mass carrier essentially when it is coasting down and / or substantially at a standstill of the centrifugal pendulum device. Ie. z. B. starting from a standstill of the centrifugal pendulum device, the pendulum mass is substantially wegbewegbar for a load case of the centrifugal pendulum device from the pendulum mass carrier, d. H. if necessary, axially moved away by a certain distance in the load case. Furthermore, z. B. starting from a load case, the pendulum mass substantially for the coasting or essentially for the standstill of the centrifugal pendulum device on the pendulum mass carrier zubewegbar, d. H. when coasting and / or at rest, possibly moved axially by a certain distance.

A displacement of the pendulum mass from the pendulum mass carrier in the axial direction can take place against a force, in particular against a spring force. In this case, the force preferably originates from an energy storage element, in particular the spring force from a spring element, by means of which the pendulum mass can be ansitzbar essentially during the coasting and / or substantially at a standstill of the centrifugal pendulum device to or on a pendulum mass carrier. The force pushes the pendulum mass preferably in the direction of the pendulum mass carrier.

In preferred embodiments of the invention, the pendulum mass has a guide element by means of which the pendulum mass is preferably movable in the circumferential direction and radial direction, ie suspended or pivotable, suspended from the pendulum mass carrier. A bearing between the guide element and the pendulum mass is preferably designed such that the displacement of the pendulum mass relative to the pendulum mass carrier takes place in the axial direction in dependence on the rotational speed of the centrifugal pendulum device. The guide element may have a bearing cone in the region of the bearing with the pendulum mass, which is cooperable with a bearing cone of the guide rail of the pendulum mass such that the pendulum mass is axially wegverlagerbar in the event of a centrifugal force on the pendulum mass, pendulum mass carrier. A radius of the bearing cone of the guide element and a radius of the bearing cone of the guide track of the pendulum mass starting from the pendulum mass carrier preferably both decrease in the axial direction, wherein a bearing section of the guide element in the pendulum mass carrier is preferably cylindrical. A slope of the bearing cone of the guide element and a slope of the bearing cone of the guideway of the pendulum mass are essentially the same. In a preferred embodiment of the invention, the guide element is designed as a part-conical spacer bolt which, starting from its essentially cylindrical bearing section, has the bearing cone on one or both sides, the radius of which starting from the bearing section decreases axially towards the outside. The guide element or the part-conical spacer pin is forcibly guided together with the pendulum mass and the pendulum mass carrier in the centrifugal pendulum device.

In one embodiment of the invention, the pendulum mass in the axial direction have two mass halves arranged one behind the other, which are so mutually displaceable connected to the pendulum mass in the axial direction, that at least one half of mass, however, preferably both masses in the axial direction are moved away from the pendulum mass carrier. Here, both mass halves are each fixed by means of a fastening to a fastening means and by means of this fastening means to each other, wherein the one mass half by means of a Axialloslagers and the other half of mass by means of a Axialfestlagers, or both mass halves are fixed by means of two Axialloslager on the fastening means. Here, the pendulum mass itself is designed so that the two mass halves can move only in the axial direction against each other a relatively small distance.

A whatsoever twistability of the mass halves of the pendulum mass to one another or a mobility of a mass half relative to the other mass half in the radial and / or circumferential direction is substantially not possible. Due to a construction of the pendulum mass is a significant mobility of a mass half of the other half of the mass - apart from the possibility of axial displacement of one or both mass halves on Axialloslager - not possible, making it irrelevant to what extent the thrust bearing a degree of freedom in another possible direction Offer; they may allow this (eg a fastener which can be rotated in the axial fixed bearing), but they do not have to. Preferably, the fastening means is not rotatable in Axialfestlager.

According to the invention, the centrifugal pendulum device can be designed such that between two axially arranged in succession mass halves of a single pendulum mass of the pendulum mass carrier is provided (see drawing). However, it is also possible for the centrifugal pendulum device to have two pendulum mass carriers, between which Chen as preferred one-piece or integral masses trained pendulum masses are movably suspended (not shown). Further, the centrifugal pendulum device may comprise a single pendulum mass carrier on which pendulum masses formed as preferably one-piece or integral masses are movably suspended, ie in such a case the pendulum masses are laterally attached to the pendulum mass carrier (also not shown).

The energy storage element, in particular the spring element, may be provided between the fastening means and the pendulum mass, in particular mechanically biased. Here, the energy storage element, in particular the spring element, preferably losla- gerseitig be provided between the pendulum mass and the fastening means, in particular a collar of the fastener. The energy storage element is designed for example as a spring element and in particular as a plate spring or a corrugated spring. - The sitting of the pendulum mass pendulum mass carrier can be supported by means of a positive and / or frictional engagement between the pendulum mass and the pendulum mass carrier. Thus, for sitting, the pendulum mass and / or the pendulum mass carrier can have mutually corresponding and / or complementary devices (eg embossed), a friction lining, a coating and / or a specific surface design.

According to the invention, the bearing cone of the guide element or the spacer bolt may be formed as a bearing outer cone. Similarly, the bearing cone of the guideway of the pendulum mass may be formed as a bearing inner cone. In addition, the Axialloslager the mass half or the pendulum mass may be a plain bearing and / or have a sliding bushing. In embodiments of the invention, mutually directly adjacent pendulum masses can be mechanically coupled and / or coupled to each other via a spring and / or damper element in the circumferential direction.

The invention is explained in more detail below with reference to embodiments with reference to the accompanying drawings. Elements or components which have an identical, univocal or analogous configuration and / or function are identified by the same reference symbols in the various figures (FIG. 1) of the drawing. In the detailed figures of the drawing, with the omission of peripheral edges, they show:

1 shows a broken-away two-dimensional radial half-sectional view of a centrifugal pendulum device according to the invention with a pendulum mass according to the invention at a standstill of the centrifugal pendulum device, wherein the centrifugal pendulum device is shown in the region of a fastener one of its pendulum masses;

Fig. 2 is a view analogous to FIG. 1, wherein the centrifugal pendulum device in the region of Guide element is shown cut cut one of their pendulum masses;

3 again shows a broken-away two-dimensional radial half-sectional view of the centrifugal pendulum device according to the invention with the pendulum mass according to the invention in a load case of the centrifugal pendulum device, wherein the centrifugal pendulum device is shown in the region of the fastening means of the pendulum mass; and

Fig. 4 is a view analogous to FIG. 3, wherein the centrifugal pendulum device is shown cut in the region of the guide element of the pendulum mass.

The specific embodiment of the drawing shows a centrifugal pendulum device 1, in particular a trapezoidal centrifugal pendulum device 1, or a device for speed-adaptive vibration damping 1, z. B. for a damper device 0 or a torque transmission device 0 (in Fig. 1 only indicated), in particular for a drive train of a motor vehicle. Exemplary applications are mentioned at the beginning. - The invention is of course not limited to the illustrated embodiment, but can be applied to all facilities in which a centrifugal pendulum 0 and a centrifugal pendulum device 1 is a useful addition.

The illustrated embodiment of the invention has at least two, three, but preferably four, five or six pendulum 20, Tilger- 20 or inertial masses 20, which extend in the radial direction Ra and in the circumferential direction of a pendulum mass carrier 10 and a Pendelmassenflansch 10 suspended To the centrifugal pendulum device 1 relative to the pendulum mass carrier 10 can move oscillating, which depends on a speed and speed changes of the pendulum mass carrier 10 (see, Fig. 1 and 2 with Fig. 3 and 4). Another number of pendulum masses 20 is of course applicable. The centrifugal pendulum device 1 is rotatable about an axis of rotation R, which is congruent with an axial direction Ax or a longitudinal axis Ax of the centrifugal pendulum device 1.

A swinging mobility of the pendulum masses 20 relative to the pendulum mass carrier 10 is guaranteed per pendulum mass 20 of preferably two of this pendulum mass 20 and the pendulum mass carrier 10 separate guide elements 26. The guide element 26 can be designed as shown in the drawing (see below). Each guide member 26 is forcibly guided between the respective pendulum mass 20 and the pendulum mass carrier 10 and performs the pendulum mass 20 on the pendulum mass carrier 10 and these two mutually. It is Z. B. also possible to provide a single guide member 26 per pendulum mass 20 and an abutment therefor.

So that a desired relative movement of the pendulum mass 20 relative to the pendulum mass carrier 10 can take place, each pendulum mass 20 preferably has two guide rails. NEN 220 and the pendulum mass carrier 10 per pendulum mass 20 also preferably two guideways 120. Preferably, both the guideways 120 in the pendulum mass carrier 10 and the guideways 220 in the pendulum masses 20 roll outbreaks. - A pendulum mass 20 has, as seen in the drawing, preferably two formed as individual masses 22 mass halves 22. But it is also possible to form a pendulum mass 20 as a single mass 22 (not shown).

The respective guideway 220 of the pendulum mass 20 extends from its central portion (not shown) in the pendulum mass 20 in both circumferential directions to preferably radially outwardly within the pendulum mass 20, wherein the preferably symmetrical guideway 220 is in particular arcuate. The respective guideway 120 of the pendulum mass carrier 10 extends from its center portion (not shown) in both circumferential directions to preferably radially inwardly within the pendulum mass carrier 10, wherein the respective preferably symmetrical guideway 120 is in particular arcuate. Ie. two guideways 120, 220 associated with a guide element 26 curve in opposite directions within the centrifugal pendulum device 1.

A base body 200 of a mass half 22 of the pendulum mass 20 or the pendulum mass 20 (see below) is a disk-shaped, d. H. level and comparatively thin body 200, z. B. from a (form) punched sheet. Similarly, a main body 100 of the pendulum mass carrier 10 is preferably also a disk-shaped, d. H. a planar and relatively thin body 100, z. B. turn from a (form) punched sheet. In the present case, the main body 100 is illustrated only in such a way that a function of a centrifugal pendulum device 1 can be realized.

The main body 100 of the pendulum mass carrier 10 may be part of the damper device 0 or the torque transmission device 0. For this purpose, the base body 100 has a radially inner connection section 110, via which the damper device 0 or the torque transmission device 0 or a component thereof can be mechanically (materially) integrally or integrally coupled, the base body 100 itself preferably being a component, z. B. a mass support, this device can be. The same applies to a radially outer region of the main body 100 (not shown).

According to the invention, the single mass 22 is axially movable on the pendulum mass carrier 10 (not shown) or the mass halves 22 are axially movable relative to each other (see drawing), z. B. by a loose rivet connection provided. The single mass 22 or the mass halves 22 by means of a z. B. axial suspension, preferably a plate 25 or a corrugated spring on the rivet connection, in particular with mechanical bias, in Rieh- tion on the pendulum mass carrier 10 so that at a standstill and / or a coasting of the centrifugal pendulum device 1 by friction forces the individual mass 22 or the mass halves 22 are held in a position on the pendulum mass carrier 10. By means of constructive measures, these holding forces can be maximized, z. B. by means of a friction lining and / or a positive connection to the contact surfaces.

The preferably formed as a roller 26 guide member 26 and corresponding rolling surfaces (guideways 120) in the pendulum mass 20 in particular have a conical shape, so that in a single operation of the centrifugal pendulum device 1 from a certain speed, the individual mass 22 is pushed away from the pendulum mass carrier 10 by a centrifugal force or the mass halves 22 are pushed apart by the centrifugal force, with a z. B. applied plate spring 25 is flattened substantially abruptly. Here, a friction / holding decision of the individual mass 22 or the mass halves 22, whereby a correct Tilgerfunktion the centrifugal pendulum device 1 comes to a standstill, since the individual mass 22 and the mass halves 22 are axially decoupled from the pendulum mass carrier 10.

The invention is characterized by a relative to the pendulum mass carrier 10 axially movable single mass 22, or against each other or against the pendulum mass carrier 10 axially movable mass halves 22. Furthermore, the invention is characterized by an axial suspension between the individual mass 22 and the pendulum mass carrier 10, or the movable mass halves 22 with each other and the mass halves 22 and the pendulum mass carrier 10, wherein the individual mass 22 and the mass halves 22 are mechanically biased to the pendulum mass carrier 10. Furthermore, the invention is characterized by conical rolling surfaces in the individual mass 22 or in the mass halves 22 (guideways 120) and on the guide element 26 or the roller 26.

The following embodiments according to the drawing relate to a centrifugal pendulum device 1 with pendulum masses 20, which have two mass halves 22, wherein the pendulum mass carrier 10 is provided between the individual masses 22; the pendulum masses 20 with their individual masses 22 so hang right and left on pendulum mass carrier 10. 1 and 3 show a mounting or mounting of the fastening means 24 in the mass halves 22, that is, in a soft manner, the fastening means 24 holds the two mass halves 22, in particular in the axial direction Ax. The pendulum mass 20 preferably has at least two such fastening means 24. So that during operation of the centrifugal pendulum device, the fastening means 24 does not collide with the pendulum mass carrier 10, the pendulum mass carrier 10 has a correspondingly shaped through-passage 140, preferably a z. B. punched rivet outbreak 140, on. One of the two mass halves 22 (on the right in FIGS. 1 and 3) is fixedly provided on the fastening means 24. Here, the pendulum mass 20, inter alia, an axial bearing 244. The other of the two mass halves 22 (left in Figs. 1 and 3) is also fixedly provided on the fastening means 24, but axially displaceable with respect to this, z. B. as Sonderniet 24 designed fastener 24, set up. Here, the pendulum mass 20, inter alia, a Axialloslager 242, preferably a sliding bearing 242, if necessary, with a sliding bush 242. Between a free end of the fastening means 24, in particular a collar of the fastening means 24, and an outer side of the mass half 22, an energy storage element 25, in particular the preferably designed as a plate 25 or wave spring spring element 25 is provided. This energy storage element 25 provides a force F ₂₅ , which compresses the two mass halves 22 of the pendulum mass 20.

In the circumferential direction To further forward and / or further back with respect to a fastening means 24, the pendulum mass 20, a guide member 26 for guiding them on / in the pendulum mass carrier 10. Here, the guide member 26 with a bearing portion 265, z. B. a central portion 265, which is in particular cylindrically shaped, guided in the guide rail 120 in the pendulum mass carrier 10. Preferably, the pendulum mass 20 has two such guide elements 26. - The preferred two guideways 220 in the pendulum mass 20 (both sides counted as one), preferably two guideways 120 in the pendulum mass carrier 10 and preferably two in the guideways 120, 220 rolling guide elements 26 guide the pendulum mass 20 on / in the pendulum mass carrier 10th

A bearing 260 of the guide member 26 in the pendulum mass 20 includes per mass half 22 a bearing cone 266, in particular a bearing outer cone 266 of the guide member 26, and a bearing cone 262, in particular a bearing inner cone 262 of the pendulum mass 20. In the present case, the guide element 26 as a part-conical spacer pin 26th formed with provided at its two free end portions Lageraußenkonen 266 and the cylindrical center portion 265. The Lagerinnenkonen 262 of the pendulum mass 20 are not areas of a straight circular truncated cone, but have as respective base a respective inner side surface of the curved guide rail 120 in the pendulum mass 20th

If, starting from a standstill of the centrifugal pendulum device 1 (see FIGS. 1 and 2), the pendulum mass carrier 10 begins to rotate about the axis of rotation R, the result is a centrifugal force (radial direction Ra) on the mass halves 22 and in relation to FIG the pendulum mass carrier 10 axially outwardly decreasing radii of the respective cones 262, 266; 262, 266 an axial force acting on the respective mass half 22 of the pendulum mass 20 (see arrows on the mass halves 22 in FIG. 4). Is the axial force F ₂₀ on the Pendulum mass 20 greater than the force from the energy storage element F ₂₅ , so the mass halves 22 of the pendulum mass 20 move away from the pendulum mass carrier 10 (see, Fig. 3 and 4). The centrifugal pendulum device 1 can fulfill its function undisturbed by axial frictional forces of the mass halves 22 with the pendulum mass carrier 10.

It is preferred that both the fastening means 24 of the mass halves 22 and the guide element or elements 26 of the mass halves 22 are arranged or provided on the pendulum mass 20 in such a way that no moments from the spring force F occur during operation of the centrifugal pendulum device 1 ₂₅ , arise. In this case, it is preferred that the fastening means 24 and the guide element or elements 26 are all set up or provided on a common (middle) radius on / in the pendulum mass 20. This radius is preferably the center radius of the pendulum mass 20, that is to say the distance between the respective longitudinal axis Ax of the fastening means 24 and the guide element or elements 26 relative to the axis of rotation R of the centrifugal pendulum device 1.

The guideways 120 of the pendulum mass carrier 10 and the guideways 220 of the pendulum masses 20 are preferably designed such that at transition phases of moving pendulum masses 20 and / or at a maximum swing angle (not shown) of the centrifugal pendulum device 1, a mutual stop of the pendulum masses 20 in the circumferential direction To avoid it. Furthermore, in the circumferential direction Um between two directly adjacent pendulum masses 20, a spring and / or damper element (not shown), for. As a leaf spring or a rubber element may be provided.

Furthermore, the centrifugal pendulum device with respect to their pendulum masses in the axial direction opposite two pendulum mass carrier (not shown). Here, the pendulum masses may be formed as one-piece or integral individual masses. Such an embodiment is z. B. advantageous if in the drive train already a mass carrier or even two mass carriers are present, at which or between which a centrifugal pendulum device should be provided. The mass carriers are preferably not only pendulum mass carrier but also z. B. a component or components of a damper device or a torque transmission device (both not shown in the drawing).

The invention relates to a centrifugal pendulum device 1 or a centrifugal pendulum 0, in which the pendulum masses 20 are preferably axially displaceable via conical spacers 26 relative to the pendulum mass carrier 10 and can be pressed back into an initial state via spring elements 25. It is preferred that each pendulum mass 20 two axially relatively mutually movable mass halves 22 form the pendulum mass 20 and held by means of an axial suspension by frictional and / or positive connection at standstill of the centrifugal pendulum device 1. At an operating speed, a Tilgerfunktion is ensured by resolution of this frictional and / or positive connection between the respective mass half 22 and the pendulum mass carrier 10 under the action of pendulum centrifugal forces.

List of Reference Torque transmission device, z. Torque converter, clutch assembly, clutch, damper assembly, damper assembly, turbine damper, pump damper, torsional vibration damper, torsional vibration damper, damper, dual mass converter, dual mass flywheel, centrifugal pendulum, etc., or assembly and / or combination thereof

Centrifugal pendulum device, in particular trapezoidal centrifugal pendulum device, means for speed-adaptive vibration damping, Tilgereinrichtung

Pendulum mass carrier, pendulum flange

Pendulum mass, absorber mass, inertial mass, z. B. two axially successively arranged mass halves 22 or merely having a simple mass

Mass half, single mass (simple mass) of the pendulum mass 20

Fastening means for fixing two axially successively arranged mass halves 22 to pendulum mass 20, preferably rivet, Sonderniet

Energy storage element, in particular spring element, preferably plate or wave spring

(conical or semi-conical) guide element for oscillating mounting of the pendulum mass 20, in particular rolling element, (running) roller, sliding element, rivet, pin, (conical or teilkonischer) spacer bolts

disk-shaped, d. H. level and comparatively thin body of the pendulum mass carrier 10th

Connecting portion of the pendulum mass carrier 10 to damper device 0, torque transmitting device 0, hub, etc.

Guideway in the pendulum mass carrier 10 for guide element 26 for oscillating guidance of the pendulum mass 20, preferably straight roll break-out (eg punched) (passage) recess, preferably rivet break-out (eg punched) for freedom of movement of the fastening means 24

disk-shaped, d. H. level and comparatively thin body of the pendulum mass 20 and the mass half 22nd

(conical) guideway in the pendulum mass 20 for guide member 26 for oscillating guidance of the pendulum mass 20 in the pendulum mass carrier 10, preferably conical roller breakout

Attachment, storage of the fastener 24 in the mass halves 22nd

Axialloslager, preferably plain bearing possibly with sliding bushing 244 axial bearing

260 bearing of the guide member 26 in the pendulum mass 20th

262 bearing cone, in particular bearing inner cone of the guideway 220

265 (straight) bearing section, z. B. middle section of the guide element 26, in particular cylindrical

266 bearing cone, in particular bearing outer cone of the guide element 26

Ax axial direction, longitudinal direction of the torque transmission device 0, the centrifugal pendulum device 1, the pendulum mass carrier 10, the pendulum mass 20, a crankshaft, a transmission shaft, the drive train, etc.

F ₂₅ power from energy storage element 25, in particular spring force of spring element 25th

F ₂ o Force in case of load on pendulum mass 20, with F ₂₀ > F ₂₅

R axis of rotation of the torque transmission device 0, the centrifugal pendulum device 1, the pendulum mass carrier 10, the pendulum mass 20, the crankshaft, the transmission shaft, the drive train, etc.

Ra radial direction of the torque transmission device 0, the centrifugal pendulum device 1, the pendulum mass carrier 10, the pendulum mass 20, the crankshaft, the transmission shaft, the drive train, etc.

To circumferential direction of the torque transmission device 0, the centrifugal pendulum device 1, the pendulum mass carrier 10, the pendulum mass 20, the crankshaft, the transmission shaft, the drive train, etc.

Claims

Patent claims

1 . Centrifugal pendulum device, in particular trapezoidal centrifugal pendulum device (1), for a damper device (0) and/or a torque transmission device (0), in particular for a drive train of a motor vehicle, with a pendulum mass carrier (10) rotatable about a rotation axis (R) of the centrifugal pendulum device (1). in which a plurality of pendulum masses (20) movable relative to the pendulum mass carrier (10) in the circumferential direction (Um) and in the radial direction (Ra) of the centrifugal pendulum device (1) are suspended, characterized in that at least one pendulum mass (20) in the axial direction (Ax) in Depending on the behavior of the centrifugal pendulum device (1) is displaceably suspended on the pendulum mass carrier (10).

2. Centrifugal pendulum device according to the preceding claim, characterized in that the centrifugal pendulum device (1) and / or the pendulum mass (20) is designed such that the displacement of the pendulum mass (20) relative to the pendulum mass carrier (10) in the axial direction (Ax) depending on a speed of the centrifugal pendulum device (1), wherein the pendulum mass (20) is preferably moved away from the pendulum mass carrier (10) essentially in a load case of the centrifugal pendulum device (1), and the pendulum mass (20) essentially when coasting and / or essentially When the centrifugal pendulum device (1) is at a standstill, it is preferably moved towards the pendulum mass carrier (10).

3. Centrifugal pendulum device according to one of the preceding claims, characterized in that the pendulum mass (20) is displaced away from the pendulum mass carrier (10) in the axial direction (Ax) against a force (F ₂₅ ), the force (F ₂₅ ) coming from an energy storage element ( 25), by means of which the pendulum mass (20) can be seated on or against a pendulum mass carrier (10) essentially when coasting and/or essentially when the centrifugal pendulum device (1) is at a standstill, and/or the force (F ₂₅ ) the pendulum mass (20) preferably presses towards the pendulum mass carrier (10).

4. Centrifugal pendulum device according to one of the preceding claims, characterized in that the pendulum mass (20) has a guide element (26), by means of in which the pendulum mass (20) is suspended on the pendulum mass carrier (10) so that it can move in the circumferential direction (Um) and radial direction (Ra), a bearing (260) between the guide element (26) and the pendulum mass (20) being designed in such a way that the displacement the pendulum mass (20) relative to the pendulum mass carrier (10) in the axial direction (Ax) depending on the speed of the centrifugal pendulum device (1).

Centrifugal pendulum device according to one of the preceding claims, characterized in that the guide element (26) in the area of the bearing (260) with the pendulum mass (20) has a bearing cone (266) which can interact in this way with a bearing cone (262) of the pendulum mass (20). is that the pendulum mass (20) can be displaced away from the pendulum mass carrier (10) when a centrifugal force occurs on the pendulum mass (20), and/or a radius of the bearing cone (266) of the guide element (26) and a radius of the bearing cone (262 ) of the pendulum mass (20) starting from the pendulum mass carrier (10), both preferably removed, with a bearing section (265) of the guide element (26) in the pendulum mass carrier (10) preferably being cylindrical.

Centrifugal pendulum device according to one of the preceding claims, characterized in that the guide element (26) is designed as a partially conical spacer bolt (26) which, starting from its essentially cylindrical bearing section (265), has the bearing cone (266) on one or both sides, starting from its radius decreases axially outwards from the bearing section (265).

Centrifugal pendulum device according to one of the preceding claims, characterized in that the pendulum mass (20; 22, 22) in the axial direction (Ax) has two mass halves (22) arranged one behind the other, which correspond to the pendulum mass (20; 22, 22) in the axial direction (Ax). are connected so that they can be displaced relative to one another, so that at least one mass half (22), but preferably both mass halves (22, 22) can be moved away from the pendulum mass carrier (10) in the axial direction (Ax), and preferably both mass halves (22, 22) each by means of a fastening (240). on a fastening means (24) and are fixed to each other by means of the fastening means (24), one half of the mass (22) being means of an axially floating bearing (242) and the other half of the mass (22) being means of an axially fixed bearing (244), or both halves of the masses using two axially floating bearings are fixed on the fastening means (24).

8. Centrifugal pendulum device according to one of the preceding claims, characterized in that the energy storage element (25) is provided mechanically prestressed between the fastening means (24) and the pendulum mass (20), the energy storage element (25) preferably being on the floating bearing side between the pendulum mass (20) and the fastening means (24), in particular a collar of the fastening means (24), is provided.

9. Centrifugal pendulum device according to one of the preceding claims, characterized in that

the energy storage element (25) is designed as a spring element (25), a plate spring (25) or a wave spring;

the pendulum mass (20) is seated on the pendulum mass carrier (10) by means of a positive and/or frictional connection between the pendulum mass (20) and the pendulum mass carrier (10);

• the bearing cone (266) of the guide element (26) is designed as an outer bearing cone (266);

• the bearing cone (262) of a guide track (220) of the pendulum mass (20) is designed as an inner bearing cone (262);

• the axially floating bearing (242) of the mass half (22) is a plain bearing (242) and/or has a sliding bushing;

• the pendulum mass carrier (10) is provided between the two mass halves (22, 22) of a single pendulum mass (20; 22, 22) arranged one behind the other in the axial direction (Ax);

• the centrifugal pendulum device (1) has two pendulum mass carriers, between which pendulum masses designed as one-piece or integral individual masses (22) are movably suspended; and or

• the centrifugal pendulum device (1) has a single pendulum mass carrier, on which pendulum masses designed as one-piece or integral individual masses (22) are movably suspended.

10. Damper device or torque transmission device in particular for a drive train of a motor vehicle, characterized in that the damper device (0) or the torque transmission device (0) has a centrifugal pendulum device (1), which is designed according to one of claims 1 to 9.