EP3755912A1 - Friction clutch for a drivetrain of a motor vehicle having at least one leaf spring for boosting a pressing force of a spring device - Google Patents
Friction clutch for a drivetrain of a motor vehicle having at least one leaf spring for boosting a pressing force of a spring deviceInfo
- Publication number
- EP3755912A1 EP3755912A1 EP19704721.0A EP19704721A EP3755912A1 EP 3755912 A1 EP3755912 A1 EP 3755912A1 EP 19704721 A EP19704721 A EP 19704721A EP 3755912 A1 EP3755912 A1 EP 3755912A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier
- friction clutch
- bearing
- plate
- axial direction
- 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- Withdrawn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
- 125000006850 spacer group Chemical group 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 description 20
- 241000446313 Lamella Species 0.000 description 19
- 238000002485 combustion reaction Methods 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
- F16D13/54—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
- F16D13/56—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member in which the clutching pressure is produced by springs only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
-
- 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
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
- F16D13/54—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure 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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/70—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members
- F16D13/71—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members in which the clutching pressure is produced by springs only
Definitions
- Friction clutch for a drive train of a motor vehicle with at least one leaf spring for reinforcing a contact force of a Federeinrichtunq
- the present invention relates to a friction clutch for a drive train of a motor vehicle.
- Friction clutches are used in drive trains of motor vehicles, such as passenger cars, trucks or motorcycles, the compensation of a drive speed and a transmission speed, in particular during starting operations of the motor vehicle.
- the object of the invention is therefore to at least partially solve the problems described with reference to the prior art, and in particular a friction clutch indicate for a drive train of a motor vehicle with in particular a hybrid drive, in which a contact pressure loss can be compensated.
- a friction clutch for a drive train of a motor vehicle contributes, which has at least the following components:
- an input part with an outer disk carrier rotatable about at least one drive motor about a rotational axis, at least one outer disk being fastened to the outer disk carrier;
- At least one spring means with which the at least one outer fin and the at least one inner fin for closing the friction clutch with a pressing force can be clamped
- a spacer blade which is positively connected to the carrier and by means of which the at least one outer fin and the at least one inner fin are spaced in an axial direction from the carrier;
- At least one leaf spring which is connected to the inner disk carrier and the carrier in such a way that the at least one leaf spring upon introduction of a torque by the drive motor reinforces the contact force with an amplifying force.
- the proposed (dry) friction clutch preferably the dry multi-plate clutch, is provided for a drive train of a motor vehicle, for example a passenger car, lorry and / or motorcycle.
- a motor vehicle for example a passenger car, lorry and / or motorcycle.
- Such power Vehicles regularly have at least one drive motor for driving the motor vehicle.
- the at least one drive motor may in particular be a hybrid engine which has both an internal combustion engine and at least one electric drive for driving the motor vehicle.
- the at least one electric motor can be operated, for example, with an operating voltage of 24 V (volts) or 48 V.
- a transmission which can be designed, for example, as an automatic transmission or as a manual transmission switched by a driver.
- the friction clutch comprises a drive-side input part, which is arranged to be rotatable about an axis of rotation by means of the drive motor and which can be connected directly or indirectly to, for example, a crankshaft of the drive motor or of the internal combustion engine of the hybrid drive. Furthermore, the friction clutch comprises a relative to the input part coaxially and rotatably arranged about the rotational axis arranged output part, which is indirectly or directly connectable, for example, with a transmission input shaft of the transmission.
- the output part further comprises a carrier.
- the carrier can be a rotor carrier, which can be connected to a rotor of the electric motor of a hybrid drive and / or can be driven by the electric motor about the axis of rotation.
- the electric motor may be arranged coaxially to the axis of rotation of the friction clutch or to the axis of rotation of the rotor carrier, so that the rotor of the electric motor surrounds the rotor carrier.
- the rotor carrier can be connected to the rotor of the electric motor, for example via a toothing on a circumferential surface of the rotor carrier.
- the electric motor can be arranged parallel to the axis of rotation of the friction clutch or the axis of rotation of the rotor carrier. In this case, the electric motor can drive a pulley, which at least partially surrounds the friction clutch.
- the friction clutch is integrated in a hybrid module for coupling a combustion engine to the drive train of the motor vehicle or for decoupling the internal combustion engine from the drive train of the motor vehicle, ie the friction clutch forms a KO clutch.
- the hybrid module may be a hybrid module with a coaxial electric motor, the rotor of which surrounds the KO clutch, or a hybrid module with an axis-parallel electric motor which drives a belt pulley which surrounds the KO clutch. In the latter case, this pulley is made
- the rotor carrier and the rotor are integrally formed, or the pulley is supported by the rotor carrier, that is drawn in the outer periphery of the rotor carrier.
- the friction unit comprises at least one outer disk rotationally fixed to an outer disk carrier of the input part and at least one inner disk rotationally connected to an inner disk carrier of the output part.
- the at least one outer disk can be connected to the outer disk carrier via a toothing with the outer disk carrier and / or the at least one inner disk can be connected to the inner disk carrier via a toothing.
- the inner disk carrier is in particular annular, at least partially tubular, at least partially made of steel and / or has an L-shaped cross-section. Furthermore, the inner disk carrier is separated from the carrier.
- the inner disk carrier in a circumferential direction about the axis of rotation is not directly or directly coupled to the carrier rotationally fixed. Furthermore, the inner disk carrier in the axial direction relative to the carrier can be formed limited displaced.
- the inner disk carrier may be fixedly connected to a pressure pot, via which the friction clutch can be actuated and, via the other, a contact force generated by at least one spring device can be transmitted to the at least one outer disk and the at least one inner disk.
- the at least one spring device presses in particular from an engine side of the friction clutch onto the pressure pot, so that the pressure pot transmits the contact pressure force to the inner disk carrier.
- the friction clutch can be disengaged with a disengaging device by the disengaging device generates a disengaging force counteracting the contact force on the pressure pot.
- the modulation spring may have a fixed end and a free end, wherein the fixed end is in particular connected to the inner disk carrier.
- the free end protrudes in the axial direction of the inner disk carrier in particular in the direction of the pressure pot.
- the engagement of the friction clutch can be made gentler when the contact pressure is provided.
- the at least one inner plate is not (directly) connected to the carrier.
- the at least one outer disk and the at least one inner disk can be arranged alternately stacked in an axial direction, ie in particular parallel to the axis of rotation, to form a disk pack.
- the at least one outer lamella and / or the at least one inner lamella are in particular annular and / or at least partially made of steel.
- the at least one outer disk and / or the at least one inner disk may have friction linings.
- the at least one outer disk and the at least one inner disk can be braced or frictionally engaged by a contact force of at least one spring device for closing or engaging the friction clutch.
- the at least one spring device is in particular a plate spring.
- the friction clutch is normally-engaged by the at least one spring device.
- the friction clutch comprises a spacer blade, which is positively connected to the carrier. Due to the positive connection of the spacer plate with the carrier, a voltage applied to the spacer blade torque of the drive motor can be transmitted to the carrier. Furthermore, the spacer blade is secured by the positive connection with the carrier against rotation relative to the carrier. Furthermore, by means of the spacer lamella, the at least one outer lamella and the at least one inner lamella are spaced from the carrier in an axial direction.
- the friction clutch furthermore has at least one leaf spring which is connected to the inner disk carrier and the carrier in such a way that the at least one leaf spring amplifies the contact force with an amplifying force when a torque is induced by the drive motor or the internal combustion engine of the hybrid drive.
- the at least one leaf spring is set up between the inner disk carrier and the carrier or is arranged with a set-up angle. This means, in particular, that the at least one leaf spring at least partially does not run parallel to the axial direction and / or the radial direction. Due to the installation angle, the torque introduced via the inner disk carrier into the at least one leaf spring results in a force with an axial directional component.
- the axial directional component of the force represents the amplification force, which acts in particular in the same direction as the contact pressure force of the at least one spring device and thus reinforces it.
- the friction clutch may comprise a plurality of stacked leaf springs in the form of at least one leaf spring package. Is the traction motor a tensile torque on the outer disc carrier and the at least one outer lamella are transmitted to the at least one inner lamella and the inner lamella carrier, the inner lamella carrier transmits this tensile moment via the at least one established leaf spring to the carrier. Due to the set-up angle of the at least one leaf spring, the reinforcing force in the axial direction is generated by the transmitted torque.
- the boosting force acts in particular in the direction of a transmission side on the inner disk carrier. Since the contact force of the at least one spring device can likewise act on the inner disk carrier, the contact force generated by the at least one spring device is amplified by the reinforcing force of the at least one leaf spring acting in the direction of the transmission side. Flier born contact pressure losses are compensated.
- the contact pressure is, in particular on the transmission side, supported by the spacer blade.
- the spacer blade serves both as an end plate in the friction clutch, which prevents the carrier itself serves as a friction surface, as well as a spacer of the disk pack, d. H. the at least one outer lamella and the at least one inner lamella, to the carrier in order to accommodate the at least one established leaf springs between the disk pack and the carrier.
- Connected to the at least one leaf spring in particular on a transmission side of the friction clutch with the carrier and on an engine side of the friction clutch with the inner disk carrier.
- the inner disk carrier may be non-rotatably connected to a pressure pot, via which the friction clutch can be actuated.
- the spacer lamella can support the contact pressure.
- the spacer blade can form a receiving space for the at least one leaf spring.
- the at least one leaf spring is in particular arranged completely in the receiving space.
- the inner disk carrier can extend into the receiving space.
- the spacer blade may have a tubular portion and a flange-like portion.
- the spacer blade is formed in particular in one piece.
- the boosting force can be directed in an axial direction his.
- the boosting force may be directed towards a transmission side of the friction clutch.
- the at least one leaf spring can be claimed to reinforce the contact force with the boosting force to train.
- the at least one leaf spring can be made smaller and thus lighter in weight.
- the at least one leaf spring can be riveted to the inner disk carrier.
- the at least one leaf spring is riveted to the inner disk carrier, in particular at a first longitudinal end.
- the at least one leaf spring is in particular rotationally or torque-lockingly connected and / or riveted to the carrier at a second longitudinal end opposite the first longitudinal end.
- the at least one leaf spring can be arranged in an axial direction next to the spacer lamella.
- the at least one leaf spring is not arranged radially inside the inner disk carrier and / or the spacer disk.
- a cross section of the inner disk carrier may be formed in particular L-shaped.
- the spacer blade may have at least one nose, which engages in at least one recess of the carrier.
- the spacer blade preferably has a plurality of lugs, which are arranged distributed in a circumferential direction about the axis of rotation.
- the at least one lug may extend in the axial direction and / or be arranged on an underside of the spacer lamella.
- the at least one recess is in particular an opening of the carrier.
- the at least one recess preferably extends completely through the carrier.
- the at least one lug engages in the at least one recess such that the spacer lamella is positively connected to the carrier and secured against rotation relative to the carrier.
- the at least one nose can center the spacer blade in the friction clutch. This means, in particular, that the spacer lamella can be aligned or arranged coaxially with the carrier by the at least one lug.
- the at least one nose may extend in the axial direction.
- the at least one recess may extend in the axial direction.
- the outer disk carrier may be rotatably mounted on a hub with a bearing, wherein a bearing seat of the bearing is at least partially formed by a Mit Converse- gear rim of the input part.
- the bearing is in particular a rolling bearing or roller bearing.
- the hub may be at least partially tubular, serve the (direct or indirect) connection of the friction clutch with a transmission input shaft of the transmission or an intermediate shaft and / or be part of the output part of the friction clutch.
- the bearing may have an inner ring and outer ring. The bearing sits in particular in the driver gear ring. This can mean that the bearing contacts the driver toothed ring (directly), in particular with the outer ring.
- the bearing can also be arranged on the hub, in particular with the inner ring.
- the driver gear rim can have an internal or external toothing, via which a torque can be transmitted from the drive motor to the input part of the friction clutch.
- the bearing seat of the bearing can be formed at least partially by the driver gear rim and the outer disk carrier. This means that the bearing seat of the bearing can also be formed by the outer disk carrier.
- the driver gear rim and the outer disk carrier are preferably arranged adjacent thereto in the axial direction (directly).
- An inner diameter of the dog gear ring may correspond to an outer diameter of the bearing. Between the inner diameter of the Mitauerierekran- zes and the outer diameter of the bearing can be formed a press fit.
- the bearing can be designed in two rows.
- rolling elements of the bearing may run in two (in the axial direction) adjacent annular Wälz Eisenbahnen.
- the bearing can be supported in the axial direction by a central screw, by means of which a hub of the friction clutch can be fixed to a shaft.
- the shaft may be an intermediate shaft via which the torque can be conducted to the transmission input shaft of the transmission.
- the central screw can in particular on an end face of the hub and / or coaxial with the hub on the Frictionally coupling be screwed.
- the central screw in particular supports the inner ring of the bearing in the axial direction. This means in particular that the central screw contacts the inner ring, so that the bearing in the axial direction is not movable relative to the hub. As a result, a backup of the bearing can be omitted by a locking ring.
- FIGS. show a particularly preferred variant of the invention, but this is not limited thereto.
- the same components are provided in the figures with the same reference numerals. They show by way of example and schematically:
- Fig. 1 a friction clutch in a first longitudinal section
- Fig. 3 the friction clutch in a perspective sectional view.
- Fig. 1 shows a friction clutch 1 in longitudinal section.
- the friction clutch 1 is a dry multi-plate clutch.
- the friction clutch 1 has an input part 2 arranged on a motor side 19 and an output part 6 arranged on a transmission side 20.
- the input part 2 comprises a rotatable about a rotational axis 3 by a drive motor or combustion engine not shown here entrainment ring gear 32 which is rotationally fixed, for example via a rivet connection, connected to an outer disk carrier 4, on the four outer disk 5 rotationally about a not shown here Teeth are attached.
- the driver gear rim 32 and the outer disk carrier 4 form a bearing seat 31 for a bearing 30.
- the driver gear rim 32 and the outer disk carrier 4 have an inner diameter 33 which (essentially) corresponds to an outer diameter 34 of a bearing 30.
- the bearing 30 is a double-row roller bearing having an inner ring 36 and an outer ring 37.
- the bearing 30 is arranged on a front end of a hub 21 and on the inner ring 36 by a central screw 35 symbolically represented here supported, so that the bearing 30 in an axial direction 12 relative to the hub 21 is not adjustable.
- the output part 6 comprises a coaxial with the outer disk carrier 4 arrange th and also about the rotation axis 3 rotatable inner disk carrier 8, are fixed to the four inner disks 9 rotationally fixed via a not shown here toothing.
- the outer disk 5 and the inner disk carrier 9 are clamped by a spring device 10, which is here a plate spring, for closing the friction clutch 1.
- a contact force of the spring device 10 via a pressure pot 14 and a modulation spring 18 on the inner disk carrier 8 can be conducted.
- the contact force is supported by a spacer blade 11.
- the spacer lamella 11 is ring-shaped and has a tubular portion 16 and a flange-like portion 17.
- the spacer blade 11 spaces the outer disks 5 and the inner disks 9 in the axial direction 12, d. H.
- the spacer blade 11 has a plurality of roots 28 distributed in the circumferential direction 25 (see FIG Circumferentially 25 distributed recesses 29 engage the carrier 7. As a result, the spacer blade 11 is positively connected to the carrier 7, so that the spacer blade 11 is secured against rotation relative to the carrier 7.
- the spacer blade 11 forms a receiving space 15 for a plurality of leaf springs 13.
- the plurality of leaf springs 13 are arranged distributed in a circumferential direction 25 (see Fig.
- the leaf springs 13 are at a first longitudinal end of the leaf springs 13 with the inner disk carrier 8 and with an opposite second longitudinal side end of the leaf springs 13 riveted to the carrier 7. In this way, when the friction clutch 1 is closed, a torque of a drive motor can be transmitted to the carrier 7 via the outer disk carrier 4, the outer disks 5, the inner disks 9, the inner disk carrier 8 and the leaf springs 13.
- the leaf springs 13 are placed between the inner disk carrier 8 and the carrier 7 or arranged with a set-up angle, so that the torque introduced via the inner disk carrier 8 into the leaf springs 13 as a tensile force is a force with a generated axial direction component.
- the axial direction component of the force represents an amplifying force which acts in the axial direction 12 in the direction of the transmission side 20 on the inner disk carrier 8, so that the contact force of the spring device 10 is increased and contact force losses are compensated.
- the friction clutch 1 can be disengaged by means of a disengaging device, not shown here, by directing a disengaging force counter to the pressing force of the spring device 10 onto the pressure pot 14 extending through the carrier 7 in the axial direction 12 in the direction of the motor side 19.
- the disengagement device is arranged at least partially in the radial direction 24 within the carrier 7.
- the carrier 7 is rotatable about the axis of rotation 3 by a rotor 22 of an electric motor not further shown here.
- the carrier 7 is also connected rotationally fixed to the rotor 22 via its peripheral surface 23.
- the carrier 7 is also non-rotatably connected to the hub 21, so that the hub 21 with the carrier 7 is rotatable about the axis of rotation 3.
- FIG. 2 shows the friction clutch 1 in a second longitudinal section. Compared to the first longitudinal section shown in FIG. 1, the friction clutch 1 is rotated around the rotation axis 3 in the second longitudinal section shown here, so that one of the plurality of leaf springs 13 connected to the carrier 7 and the inner disk carrier 8 can be seen better.
- FIG. 3 shows the friction clutch 1 in a perspective sectional view.
- the collar 26 of the inner disk carrier 8 can be seen in FIG. 3, which protrudes into the receiving space 15 formed by the spacer disk 11 for the leaf springs 13 shown in FIGS. 1 and 2.
- the direction of rotation 27 is counterclockwise in order to stress the leaf springs 13 shown in FIGS. 1 and 2, and to utilize the reinforcing function of the leaf springs 13.
- a torque in the direction of rotation 27 coming from the engine side 19 via the outer disk carrier 4 and the outer disk 5 is initiated by the internal combustion engine, not shown, with engaged Reibkupp- 1 on the inner disk 9 and the inner disk carrier 8 provides the torque in the direction of rotation 27 ensures that the frictional engagement between the outer disks 5 and inner disks 9 is reinforced by the tensioned, erected leaf springs 13, since the collar 26 of the inner disk carrier 8 displaceable in the axial direction 12 moves in the direction of the carrier 7 is pulled.
- the torque capacity of the friction clutch 1 increases, whereby the friction clutch 1 can be made smaller than would have been the case without the reinforcing function of the leaf springs 13.
- 13 can be compensated by the reinforcing function of Blattfe- countries 13 contact force losses.
- the friction clutch 1 is formed in a hybrid module (not shown) for coupling and uncoupling an internal combustion engine to and from the drive train of a motor vehicle, ie the friction clutch 1 forms a CO coupling.
- the hybrid module may be a hybrid motor with a coaxial electric motor whose rotor surrounds the KO clutch, or a hybrid module with an axis-parallel electric motor that drives a pulley surrounding the KO clutch. In the latter case, this pulley is formed integrally from the carrier 7 and the rotor 22, or the pulley is carried by the carrier 7, that is absorbed in the outer periphery of the carrier 7.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018103983 | 2018-02-22 | ||
DE102018108047.6A DE102018108047A1 (en) | 2018-02-22 | 2018-04-05 | Friction clutch for a drive train of a motor vehicle with at least one leaf spring for reinforcing a contact force of a spring device |
PCT/DE2019/100064 WO2019161828A1 (en) | 2018-02-22 | 2019-01-22 | Friction clutch for a drivetrain of a motor vehicle having at least one leaf spring for boosting a pressing force of a spring device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3755912A1 true EP3755912A1 (en) | 2020-12-30 |
Family
ID=67481605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19704721.0A Withdrawn EP3755912A1 (en) | 2018-02-22 | 2019-01-22 | Friction clutch for a drivetrain of a motor vehicle having at least one leaf spring for boosting a pressing force of a spring device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3755912A1 (en) |
CN (1) | CN111630290B (en) |
DE (2) | DE102018108047A1 (en) |
WO (1) | WO2019161828A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018108046A1 (en) | 2018-02-22 | 2019-08-22 | Schaeffler Technologies AG & Co. KG | Friction clutch for a drive train of a motor vehicle with an actuating surface formed by at least one connecting means |
DE102021109483A1 (en) | 2021-04-15 | 2022-10-20 | Schaeffler Technologies AG & Co. KG | Reliable pressure plate arrangement for a friction clutch |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH477636A (en) * | 1966-08-31 | 1969-08-31 | Walterscheid Kg Jean | Friction clutch with torque limitation |
DE2145106A1 (en) * | 1971-09-09 | 1973-03-15 | Daimler Benz Ag | ACTUATING DEVICE FOR FRICTION SHIFTING DEVICES IN PLANETARY WHEEL TRANSMISSIONS, IN PARTICULAR IN MOTOR VEHICLES |
US10364851B2 (en) * | 2014-08-25 | 2019-07-30 | Borgwarner Inc. | Latching clutch having a ball detent latching device requiring a reduced amount of hydraulic pressure |
DE102014224374A1 (en) * | 2014-11-28 | 2016-06-02 | Schaeffler Technologies AG & Co. KG | coupling device |
-
2018
- 2018-04-05 DE DE102018108047.6A patent/DE102018108047A1/en not_active Withdrawn
-
2019
- 2019-01-22 DE DE112019000933.8T patent/DE112019000933A5/en not_active Withdrawn
- 2019-01-22 EP EP19704721.0A patent/EP3755912A1/en not_active Withdrawn
- 2019-01-22 CN CN201980008917.7A patent/CN111630290B/en active Active
- 2019-01-22 WO PCT/DE2019/100064 patent/WO2019161828A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN111630290A (en) | 2020-09-04 |
CN111630290B (en) | 2022-05-13 |
DE102018108047A1 (en) | 2019-08-22 |
DE112019000933A5 (en) | 2020-11-19 |
WO2019161828A1 (en) | 2019-08-29 |
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