EP3755913A1 - Reibungskupplung mit fliehkraftpendel und verfahren zur schaltbaren verbindung eines fliehkraftpendels mit einer nabe einer reibungskupplung - Google Patents
Reibungskupplung mit fliehkraftpendel und verfahren zur schaltbaren verbindung eines fliehkraftpendels mit einer nabe einer reibungskupplungInfo
- Publication number
- EP3755913A1 EP3755913A1 EP19705923.1A EP19705923A EP3755913A1 EP 3755913 A1 EP3755913 A1 EP 3755913A1 EP 19705923 A EP19705923 A EP 19705923A EP 3755913 A1 EP3755913 A1 EP 3755913A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- friction clutch
- hub
- pendulum
- centrifugal pendulum
- flange
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/46—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member
-
- 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
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/087—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation the clutch being actuated by the fluid-actuated member via a diaphragm spring or an equivalent array of levers
-
- 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
- F16D25/00—Fluid-actuated clutches
- F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
- F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
- F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
Definitions
- the present invention relates to a friction clutch with a centrifugal pendulum, a hub and a common axis of rotation and a method for switchable connection of a centrifugal pendulum with a hub of a friction clutch.
- the friction clutch can be used in particular in a motor vehicle, preferably in the drive train of a motor vehicle.
- the centrifugal pendulum is intended in particular for a reduction of engine-excited torsional vibrations.
- the centrifugal force pens comprises at least one flange (as a flywheel) and a plurality of pendulum masses, which are movably arranged on the flange.
- a friction clutch regularly comprises at least one counterplate, a pressure plate displaceable relative to the counterplate along an axial direction, and a clutch disc which can be arranged between the counterplate and the pressure plate.
- the clutch disc When engaging the friction clutch, the clutch disc is frictionally connected with counter-plate and pressure plate, so that a torque z. B. from an internal combustion engine via the counter-plate and pressure plate on the clutch disc and from the clutch disc to a hub is transferable.
- the friction clutch is released, the frictional connection is released.
- the hub is in particular rotatably connected to a transmission input shaft.
- a centrifugal pendulum is used in particular in friction clutches in order to suppress the transmission of undesired vibrations, generally starting from the internal combustion engine to the driven system, at least in predetermined frequency ranges.
- the pendulum masses can execute vibrations along their raceways when they are excited by torque fluctuations of an internal combustion engine.
- energy is removed from the excitation oscillation at appropriate times and supplied again, so that the excitation oscillation is calmed, whereby the centrifugal pendulum acts as a absorber. Since both the natural frequency of the centrifugal pendulum oscillation and the excitation frequency proportional are the speed, the Tilger Ober a centrifugal pendulum can be achieved in particular over the entire frequency range.
- a centrifugal pendulum in which the pendulum masses are mounted so as to be movable relative to the flywheel via rollers (roller bodies). These rollers are adapted to be placed between a pendulum mass and the bearing surface (stop) of a flywheel of the centrifugal pendulum, so that the pendulum mass can perform a predefined repayment movement due to an incoming vibration.
- the pendulum mass rolls over the roller section of the roller.
- the at least one pendulum mass is movably fixed to the flywheel so as to be secured in an axial direction and swing in the plane normal to the swing axis along a predetermined curve.
- the flywheel is the axis of rotation of the friction clutch, so that the flywheel rotates about the axis of rotation of the friction clutch.
- centrifugal pendulum When opening the friction clutch a high moment of inertia of the centrifugal pendulum acts disadvantageous.
- the centrifugal pendulum should therefore actually be connected to a transmission input shaft only in the closed (engaged) state of the friction clutch.
- high actuation forces would be necessary because both components must be strongly connected torque-resistant.
- the object of the present invention is to at least partially solve the problems known from the prior art.
- a friction clutch with centrifugal pendulum and a method for switchable connection of a centrifugal pendulum with a friction clutch should be proposed, wherein the decoupling in the existing space can be implemented inexpensively and in particular with the lowest possible actuation forces.
- the invention relates to a friction clutch with a centrifugal pendulum, a hub and a common axis of rotation, wherein the centrifugal pendulum at least one flange and a plurality of pendulum masses, wherein the pendulum masses at least along a radial direction relative to the axis of rotation and relative to the at least one Flange movably disposed on at least one flange; wherein the centrifugal pendulum is switchable with the hub rotatably connected.
- the at least one flange and the hub are rotatably connected via at least one displaceable in the radial direction (and biased) driver element.
- a friction clutch comprises, in particular, at least one counterplate, a pressure plate displaceable relative to the counterplate along an axial direction, and a clutch disc which can be arranged between the counterplate and the pressure plate.
- the clutch disc When engaging the friction clutch, the clutch disc is frictionally connected with counter-plate and pressure plate, so that a torque z. B. from an internal combustion engine via the counter-plate and pressure plate on the clutch disc and from the clutch disc to a hub is transferable.
- the friction clutch is released, the frictional connection is released.
- the hub is in particular non-rotatably connected to a transmission input shaft or forms the transmission input shaft.
- a centrifugal pendulum is used in particular in friction clutches in order to suppress the transmission of undesirable vibrations, generally starting from an internal combustion engine to the driven system, at least in predetermined frequency ranges.
- the pendulum masses can execute oscillations along their raceways if they are subject to torque fluctuations, for example.
- B. an internal combustion engine are the excited. These vibrations make the excitation oscillation at appropriate times Energy deprived and fed again, so that it comes to a calming of the excitement, whereby the centrifugal pendulum acts as a absorber.
- the centrifugal pendulum is arranged in the radial direction on the inside of the pressure plate and counter plate.
- the centrifugal pendulum is either rotatably arranged relative to the hub or rotatably connected to the hub.
- the centrifugal force pendulum is connected in a rotationally fixed manner to the hub and is rotatably arranged relative to the hub when the friction clutch is disengaged.
- the at least one driver element is arranged along the radial direction between the at least one flange and the hub.
- the at least one driver element can be prestressed in the radial direction by at least one compression spring arranged along the radial direction between the at least one driver element and the hub.
- the at least one driver element can be pressed against the flange via the at least one compression spring, so that an at least friction-locking connection of driver element and flange is formed.
- the at least one driver element can be actuated via an actuating lever and thereby be displaceable in the radial direction.
- the actuating lever for actuating the driver element can be displaceable along an axial direction and interact with the driver element via a ramp system.
- the actuating lever may have a ramp which has a surface inclined with respect to an axial direction.
- the at least one driver element may have a ramp which has a surface inclined with respect to the axial direction.
- the Ramp or ramps can cooperate to displace the driver element along the radial direction.
- the actuating lever is pretensioned via at least one spring (tension spring) whose spring force acts along the axial direction towards the driver element.
- the actuating lever can interact with an actuating element (eg, a disc spring or a CSC (Concentric Slave Cylinder)) for the friction clutch, via which the friction clutch can be engaged and / or disengaged (ie, the pressure plate along the axial direction is relocatable).
- an actuating element eg, a disc spring or a CSC (Concentric Slave Cylinder)
- CSC Concentric Slave Cylinder
- the actuating lever and the actuating element are arranged so that upon actuation of the actuating element initially the non-rotatable connection of centrifugal pendulum and hub can be generated or released and then the actuation of the friction clutch. But it is also possible that the actuation of the friction clutch and the generation or the release of the non-rotatable connection of centrifugal pendulum and hub takes place simultaneously.
- the method can be applied to the friction clutch already described.
- the actuating lever and the actuating element of the friction clutch are arranged so that upon actuation of the actuating element initially the rotationally fixed connection of centrifugal pendulum and hub is generated or released and then the friction clutch is actuated, ie the frictional connection of the clutch disc formed with pressure plate and counter plate or is dissolved.
- the friction clutch is actuated, ie the frictional connection of the clutch disc formed with pressure plate and counter plate or is dissolved.
- the operation of the friction clutch and the generation or the release of the rotationally fixed connection of centrifugal pendulum and hub takes place simultaneously.
- the friction clutch 1 shows a friction clutch 1 with a centrifugal pendulum 2 in a side view in section.
- the friction clutch 1 further comprises a hub 3 and a common axis of rotation 4, wherein the centrifugal pendulum 2 has a flange 5 and a plurality of pendulum masses 6.
- the pendulum masses 6 are arranged movably along a radial direction 7 with respect to the axis of rotation 4 and with respect to the flange 5 on the flange 5.
- the centrifugal pendulum 2 is switchable with the hub 3 rotatably connected.
- the friction clutch 1 comprises a counterplate 16, a pressure plate 17 which can be displaced with respect to the counterplate 16 along an axial direction 11, and a clutch disc 18 arranged between the counterplate 16 and the pressure plate 17.
- the clutch disc 18 is provided with the counterplate 16 and Pressure plate 17 frictionally connected, so that a torque z.
- the hub 3 is rotatably connected to a transmission input shaft or forms the transmission input shaft.
- the centrifugal pendulum 2 is arranged in the radial direction 7 inside of the pressure plate 17 and the counter plate 16.
- the centrifugal pendulum 2 is either rotatably arranged relative to the hub 3 or rotatably connected to the hub 3.
- the flange 5 and the hub 3 can be connected in a rotationally fixed manner via a carrier element 8 which can be prestressed in the radial direction 7.
- the driver element 8 is arranged along the radial direction 7 between the flange 5 and the hub 3.
- the driver element 8 is arranged by a along the radial direction 7 between the driver element 8 and the hub 3 arranged compression spring 9 in the radial Biased towards direction 7.
- the driver element 8 is pressed by the compression spring 9 against the flange 5, so that a frictional connection of Mit supportiveele- element 8 and flange 5 is formed.
- the driver element 8 is actuated via an actuating lever 10 and thereby displaced in the radial direction 7.
- the actuating lever 10 is displaceable along an axial direction 11 for actuating the driver element 8 and interacts with the driver element 8 via a ramp system 12.
- the actuating lever 10 has a ramp which has a surface which is inclined with respect to an axial direction 11.
- the driver element 8 has a ramp which has a surface inclined with respect to the axial direction 11.
- the actuating lever 10 interacts with an actuating element 15 of a CSC (Concentric Slave Cylinder) actuating system for the friction clutch 1, via which a disc spring 19 of the friction clutch 1 can be actuated and thus the friction clutch 1 can be engaged and / or disengaged ( So the pressure plate 17 along the axial direction 11 is displaced).
- CSC Concentric Slave Cylinder
- Actuating lever 10 and actuating element 15 or disc spring 19 are arranged so that upon actuation of the actuating element 15, first the non-rotatable connection of centrifugal pendulum pendulum 2 and hub 3 can be generated or released and thereafter the actuation of the friction clutch 1 takes place.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018103871.2A DE102018103871A1 (de) | 2018-02-21 | 2018-02-21 | Reibungskupplung mit Fliehkraftpendel und Verfahren zur schaltbaren Verbindung eines Fliehkraftpendels mit einer Nabe einer Reibungskupplung |
| PCT/DE2019/100083 WO2019161831A1 (de) | 2018-02-21 | 2019-01-28 | Reibungskupplung mit fliehkraftpendel und verfahren zur schaltbaren verbindung eines fliehkraftpendels mit einer nabe einer reibungskupplung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3755913A1 true EP3755913A1 (de) | 2020-12-30 |
Family
ID=65493771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19705923.1A Withdrawn EP3755913A1 (de) | 2018-02-21 | 2019-01-28 | Reibungskupplung mit fliehkraftpendel und verfahren zur schaltbaren verbindung eines fliehkraftpendels mit einer nabe einer reibungskupplung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3755913A1 (de) |
| DE (1) | DE102018103871A1 (de) |
| WO (1) | WO2019161831A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013034120A1 (de) * | 2011-09-09 | 2013-03-14 | Schaeffler Technologies AG & Co. KG | Antriebsstrang mit stirnradgetriebe und fliehkraftpendel |
| DE112013003781A5 (de) | 2012-07-31 | 2015-06-03 | Schaeffler Technologies Gmbh & Co. Kg | Rolle für eine Pendelmasse eines Fliehkraftpendels |
| DE102014215271A1 (de) * | 2013-09-12 | 2015-03-12 | Schaeffler Technologies AG & Co. KG | Anpressplatte zum Verpressen einer Kupplungsscheibe für eine Reibungskupplung |
| DE112015002916A5 (de) * | 2014-06-20 | 2017-03-02 | Schaeffler Technologies AG & Co. KG | Antriebssystem |
| DE102016218403A1 (de) * | 2016-09-26 | 2018-03-29 | Schaeffler Technologies AG & Co. KG | Kupplungseinrichtung mit Fliehkraftpendel |
-
2018
- 2018-02-21 DE DE102018103871.2A patent/DE102018103871A1/de not_active Withdrawn
-
2019
- 2019-01-28 WO PCT/DE2019/100083 patent/WO2019161831A1/de not_active Ceased
- 2019-01-28 EP EP19705923.1A patent/EP3755913A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018103871A1 (de) | 2019-08-22 |
| WO2019161831A1 (de) | 2019-08-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20200921 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DANNHAEUSER, MATTHIAS |
|
| 18W | Application withdrawn |
Effective date: 20210324 |
|
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230524 |