WO2015106745A1 - Clutch with helical springs for reducing the increase in release force beyond the wear range - Google Patents
Clutch with helical springs for reducing the increase in release force beyond the wear range Download PDFInfo
- Publication number
- WO2015106745A1 WO2015106745A1 PCT/DE2014/200654 DE2014200654W WO2015106745A1 WO 2015106745 A1 WO2015106745 A1 WO 2015106745A1 DE 2014200654 W DE2014200654 W DE 2014200654W WO 2015106745 A1 WO2015106745 A1 WO 2015106745A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spring
- auxiliary spring
- clutch
- plate
- auxiliary
- Prior art date
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
- F16D13/58—Details
- F16D13/60—Clutching elements
-
- 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
- F16D13/583—Diaphragm-springs, e.g. Belleville
- F16D13/585—Arrangements or details relating to the mounting or support of the diaphragm on the clutch on the clutch cover or the pressure plate
-
- 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
- F16D13/75—Features relating to adjustment, e.g. slack adjusters
- F16D13/757—Features relating to adjustment, e.g. slack adjusters the adjusting device being located on or inside the clutch cover, e.g. acting on the diaphragm or on the pressure plate
Definitions
- the invention relates to a coupling for a drive train of a motor vehicle, with a cover arranged on the transmission side and an actuating member, such as a plate spring, which is designed for engaging or disengaging actuation of a pressure plate.
- a self-adjusting coupling with a plate spring is presented, which is arranged between an adjusting ring and a sensor spring, wherein the adjusting ring has a first contact region with which this is at least when relieved plate spring in contact with the plate spring, wherein the adjusting comprises at least a second contact area with which it is to be brought into contact with the diaphragm spring when a first Ausgurweges is exceeded.
- a support spring is disclosed in this document.
- a clutch cover is in fact in its radially inner region in webs, which form a stop ring. With the help of centering pins of the spring ring is attached to the clutch cover.
- the spring ring includes auxiliary springs which extend radially inwardly and axially in the direction of the stop ring. The additional springs engage with radially inner areas under plate spring tongues.
- a friction clutch device is presented.
- This friction clutch device is provided in particular for a drive train of a combustion engine-driven motor vehicle, comprising an axially displaceable for actuating pressure plate, which is acted upon by the force of a spring device, wherein the force of the spring device counteracts an actuating force, and a compensation spring whose force supports an operation at least partially, in which the compensating spring device has at least one compensating spring designed as a plate or lever spring in order to constructively and / or functionally improve the friction coupling device.
- auxiliary spring is pivotally connected to the plate spring and / or the lid. Jamming is thereby avoided and ensured over the entire adjustment efficient functioning.
- auxiliary spring is designed as a compression spring.
- a tension spring can be used, the connection should then be designed something trickier.
- a separate coupling piece engages the auxiliary spring for pivotally connecting the auxiliary spring to the plate spring or the cover.
- two coupling pieces can be used on each side of the auxiliary spring to ensure a connection to the plate spring on the one hand and the lid on the other. In this way, different dimensions of disc springs and covers can be combined. A higher variability than normal is the result.
- the coupling piece a guide portion, such as a
- Guide pin or a guide tube which projects into the auxiliary spring at least in sections and / or has a arranged, for example, in a transverse plane of the coupling pivot, which is rotatably mounted in a hook, for example open on one side or in a hole on a bearing block.
- the unilaterally open hook facilitates assembly, while the bearing plate mounting increases the reliability.
- the engaging in the auxiliary spring portion avoids accidental buckling of the auxiliary spring, resulting in a more robust design.
- the bearing plate or the hook is positively, positively and / or materially attached to the plate spring, approximately in the range of tongues formed by them, or on a cover, such as at its radially inner edge, attached / attached . It can also be used two bearing plates, wherein one bearing plate is used per plate spring tongue. Also, two hooks can be used, which are arranged together between two plate spring tongues on the radially inner edge of the lid and there protrude axially and / or radially. It is advantageous if the auxiliary spring and the actuator designed as a plate spring to each other has radially offset pivot points.
- pivot points are offset so that they apply different and different sized forces on the disc spring and thus on the release bearing on the wear path and / or along the actuation path.
- An advantageous embodiment is also characterized in that the auxiliary spring is inserted between the actuator and the lid, that at the beginning of the actuation path, such as in completely closed state, for example, a "Normally Closed” coupling, the force applied by the auxiliary spring counteracts the release force acting on the actuator.
- a "Normally Closed” coupling the force applied by the auxiliary spring counteracts the release force acting on the actuator.
- the auxiliary spring for "Normally-Open” couplings vice versa, and the release force then becomes an engagement force.
- This adjuster can be path controlled or force controlled. So even those clutches can be realized that contain power or path controlled adjusting devices.
- a clutch with helical, pressure-loaded auxiliary springs, which are arranged in the radial direction within a pivot bearing, and which are designed to reduce or compensate for the increase in the release force over the wear region.
- Each of the coil springs is fixed in the radial direction on the outside of the clutch cover and in the radial direction on the inside to a corresponding plate spring tongue.
- the attachment of the coil spring includes a guide for the coil spring. Furthermore, the attachment comprises a rotatable mounting of the coil spring both on the clutch cover, and on the plate spring tongue. The axis of rotation runs in the tangential or circumferential direction of the coupling.
- Disc spring tongues exists to control the characteristic of the disengaging forces.
- the system comprising three auxiliary springs offset by 120 °, is fixed in two positions, namely on the cover and on the disc spring.
- the positions of the attachment points have an influence on the additional force of the spring.
- the auxiliary spring has two coupling pieces, which together with the auxiliary spring form a module.
- This module is attached between the lid and the plate spring tongues. On the lid side, the spring is fastened with one or more hooks. Plate spring side, the spring is attached with one or more tabs on the diaphragm spring tongues.
- the module is located between two plate spring tongues.
- the spring operates centrally between two guide tube or guide pin sections.
- the diaphragm spring is in contact with the cover. This point is the rotation point of the diaphragm spring.
- the release / release bearing will press on the tip of the tongue to turn the disc spring. This allows the lifting of the pressure plate.
- the auxiliary spring presses on the plate spring tongues. In this state, this force is added to the release force. Ultimately, it counteracts the release force.
- This force is dependent on the spring and also the installation position of the diaphragm spring. It makes sense to install the auxiliary spring so that it counteracts the release force in the engaged state, ie at the beginning of the operation. This achieves a stable position. Only later in time, when operating the diaphragm spring, the construction goes through an unstable position.
- the point of rotation of the spring is the attachment to the lid. Since the spring, so the auxiliary spring, is fixed with tabs on the tongues of the plate spring, the movement curve of the auxiliary curve depends on three disc spring tongue positions. Likewise, the spring force of the auxiliary spring is dependent on the tongue position.
- the auxiliary spring When transitioning from the engaged to the disengaged state, ie when disengaging the clutch, the auxiliary spring brings no force on the plate spring.
- the three relevant points namely the point of rotation of the diaphragm spring, the rotation point of the auxiliary spring and the attachment point of the auxiliary spring on the tongues is aligned, ie viewed in alignment or on a line in longitudinal section.
- a reduction of the release force in the disengaged state is then determine as an advantage.
- the characteristic curve of the auxiliary power of the auxiliary spring is dependent on the Position of spring fixing on cover and spring strength / auxiliary spring characteristic.
- the wear area can be increased.
- FIG. 1 shows a detail of a coupling according to the invention in the region of an advantageous auxiliary spring module used between the diaphragm spring tongues and the cover,
- Fig. 3 shows the position of the points of rotation of the plate spring and the auxiliary spring in one
- Fig. 6 shows the disengaged state
- Fig. 7 is an enlargement of the area VII of Fig. 4
- Fig. 8 is an enlargement of the area VIII of Fig. 6
- Fig. 9 is a spring characteristic of the auxiliary spring
- a portion of a coupling 1 is shown.
- This clutch is part of a powertrain of a motor vehicle, such as a car, a truck, a Bus or another commercial vehicle.
- the clutch 1 may comprise a force-controlled or path-controlled adjusting device, in particular one with an adjusting ring, which cooperates with ramp-like elements.
- a sensor spring may be included.
- the clutch 1 has a pressure plate, not shown, which can be clamped to a clutch disc friction linings between the pressure plate and a counter-pressure element, such as a counter-pressure plate or a flywheel.
- An auxiliary spring 2 which is part of an auxiliary spring module 3, is between a cover /
- a hook 7 and a bearing plate 8 is provided.
- two hooks 7 and two bearing plates 8 are provided.
- the tongues 9 are radially inwardly projecting resilient elements of the diaphragm spring 6.
- the auxiliary spring module 3 is provided in the circumferential direction between the two tongues 9, in a gap 10.
- Two hooks 7 protrude from a connecting plate 1 1, which is connected in one piece to a radially inner edge 12 of the lid 4.
- the bearing plates 8 are integral parts of the plate spring 6, as well as the hooks 7 and the connecting plate 1 1 integral components of the lid 4 are.
- the lid 4 and the plate spring 6 are produced without cutting, about deep-drawn, sheet steel components.
- the auxiliary spring 2 is placed on two coupling pieces 13.
- a first end 14 of the auxiliary spring 2 is placed on a guide pin 15 of a coupling piece 13, wherein a second end 16 of the auxiliary spring 2 is placed on a guide pin 15 of the other coupling piece 13.
- the auxiliary spring 2 is configured as a helical spring, in particular as a helical tension spring or as a helical compression spring. In the present case, an embodiment is selected as a coil spring.
- the radially inner, arranged by a first rotation point 17 second rotation point 18 of the auxiliary spring 2 is seen in the axial direction closer to the gearbox than the engine. The two points of rotation 17 and 18 are not located in the coupled state in the same transverse plane.
- FIG. 3 also shows, for example, a "rotation point" of the actuating element 5 embodied as a plate spring 6.
- the force of the releaser for example due to contact with a release bearing for disengaging is symbolized by the arrow 20.
- the direction of relaxation of the auxiliary spring 2 when disengaging is symbolized by the arrow 21.
- the rotation of the plate spring is symbolized when disengaging.
- pivot pin 23 in the hook 7 The pivot pin 23 of the other coupling piece 13 stuck in the bearing plates 8, namely in holes 24.
- the bearing plates 8 are thus used to attach the auxiliary spring. 6
- vehicle 15 may also be referred to as a guide section.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14816120.1A EP3094881A1 (en) | 2014-01-17 | 2014-11-25 | Clutch with helical springs for reducing the increase in release force beyond the wear range |
DE112014006180.8T DE112014006180A5 (en) | 2014-01-17 | 2014-11-25 | Coupling with coil springs to reduce the increase of the release force over the wear area |
CN201480073275.6A CN105917132B (en) | 2014-01-17 | 2014-11-25 | Coupling device with a helical spring for reducing the increase in the separating force on the wear area |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014200793.3 | 2014-01-17 | ||
DE102014200793 | 2014-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015106745A1 true WO2015106745A1 (en) | 2015-07-23 |
Family
ID=52144325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2014/200654 WO2015106745A1 (en) | 2014-01-17 | 2014-11-25 | Clutch with helical springs for reducing the increase in release force beyond the wear range |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3094881A1 (en) |
CN (1) | CN105917132B (en) |
DE (1) | DE112014006180A5 (en) |
WO (1) | WO2015106745A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19535712C1 (en) * | 1995-09-26 | 1996-10-31 | Fichtel & Sachs Ag | Friction clutch in vehicle drive line, with housing fixed to combustion engine flywheel |
EP0882902A1 (en) * | 1997-06-06 | 1998-12-09 | Ford-Werke Aktiengesellschaft | Anti-vibration device for a friction clutch diaphragm |
DE10208207A1 (en) * | 2001-02-27 | 2002-09-05 | Luk Lamellen & Kupplungsbau | Friction clutch for power transmission has at least one component parallel to dish spring which is pressed against this spring |
EP2249054A2 (en) * | 2009-05-07 | 2010-11-10 | ZF Friedrichshafen AG | Pressure plate assembly for a friction clutch |
DE19880946B3 (en) * | 1997-05-30 | 2012-04-05 | Valeo | Clutch mechanism for a friction clutch |
DE102011084840A1 (en) | 2011-10-20 | 2013-04-25 | Schaeffler Technologies AG & Co. KG | Friction clutch device e.g. dry friction clutch device for powertrain of engine-driven motor car, has compensating spring arranged between housing and pressure plate to provide control force against force of spring element |
DE102011086009A1 (en) | 2011-11-09 | 2013-05-16 | Schaeffler Technologies AG & Co. KG | Self-adjusting clutch for use in drive train of motor vehicle, has disk spring which is arranged between adjusting ring and sensor spring, where adjusting ring has contact area, with which adjusting ring stands in contact with disk spring |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2520823B1 (en) * | 1982-02-04 | 1986-03-28 | Valeo | FRICTION CLUTCH MECHANISM PROVIDED WITH AN IMPROVED TRAVEL LIMITATION DEVICE, PARTICULARLY FOR A MOTOR VEHICLE |
DE3513315A1 (en) * | 1985-04-13 | 1986-10-16 | Fichtel & Sachs Ag, 8720 Schweinfurt | DIAPHRAGM SPRING COUPLING WITH A SUPPORT RING |
FR2675865B1 (en) * | 1991-04-23 | 1995-06-02 | Valeo | CLUTCH MECHANISM WITH TIRE TYPE DIAPHRAGM, PARTICULARLY FOR MOTOR VEHICLES AND CLUTCH DIAPHRAGM. |
ES2119667B1 (en) * | 1994-12-24 | 1999-04-01 | Fichtel & Sachs Ag | FRICTION CLUTCH WITH AUXILIARY SPRING TO ASSIST THE STRUT-OFF FORCE. |
DE102009045980B4 (en) * | 2009-10-26 | 2011-12-08 | Zf Friedrichshafen Ag | friction clutch |
-
2014
- 2014-11-25 EP EP14816120.1A patent/EP3094881A1/en not_active Withdrawn
- 2014-11-25 DE DE112014006180.8T patent/DE112014006180A5/en not_active Withdrawn
- 2014-11-25 WO PCT/DE2014/200654 patent/WO2015106745A1/en active Application Filing
- 2014-11-25 CN CN201480073275.6A patent/CN105917132B/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19535712C1 (en) * | 1995-09-26 | 1996-10-31 | Fichtel & Sachs Ag | Friction clutch in vehicle drive line, with housing fixed to combustion engine flywheel |
DE19880946B3 (en) * | 1997-05-30 | 2012-04-05 | Valeo | Clutch mechanism for a friction clutch |
EP0882902A1 (en) * | 1997-06-06 | 1998-12-09 | Ford-Werke Aktiengesellschaft | Anti-vibration device for a friction clutch diaphragm |
DE10208207A1 (en) * | 2001-02-27 | 2002-09-05 | Luk Lamellen & Kupplungsbau | Friction clutch for power transmission has at least one component parallel to dish spring which is pressed against this spring |
EP2249054A2 (en) * | 2009-05-07 | 2010-11-10 | ZF Friedrichshafen AG | Pressure plate assembly for a friction clutch |
DE102011084840A1 (en) | 2011-10-20 | 2013-04-25 | Schaeffler Technologies AG & Co. KG | Friction clutch device e.g. dry friction clutch device for powertrain of engine-driven motor car, has compensating spring arranged between housing and pressure plate to provide control force against force of spring element |
DE102011086009A1 (en) | 2011-11-09 | 2013-05-16 | Schaeffler Technologies AG & Co. KG | Self-adjusting clutch for use in drive train of motor vehicle, has disk spring which is arranged between adjusting ring and sensor spring, where adjusting ring has contact area, with which adjusting ring stands in contact with disk spring |
Also Published As
Publication number | Publication date |
---|---|
CN105917132A (en) | 2016-08-31 |
DE112014006180A5 (en) | 2016-10-06 |
CN105917132B (en) | 2019-04-16 |
EP3094881A1 (en) | 2016-11-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2028385B9 (en) | Coupling device | |
EP1957816A1 (en) | Clutch unit | |
DE69722166T2 (en) | CLUTCH MECHANISM FOR A FRICTION CLUTCH WITH REDUCED SOLVENT EFFORT | |
WO2007062616A1 (en) | Clutch unit | |
DE112014001037B4 (en) | friction clutch | |
DE102004018377B4 (en) | friction clutch | |
DE102013207694A1 (en) | Sensor ring for adjusting device of friction clutch, has bearing region for application of clamping spring clip, which runs diagonally in partial region at preset angle with radial plane | |
EP1659305B1 (en) | Friction clutch | |
DE102008027056A1 (en) | Self adjusting friction clutch has a one piece compensating spring with stops to limit the clutch movement | |
DE102015204441A1 (en) | Adjustment device and clutch cover for a friction clutch | |
DE102015200925A1 (en) | Cover assembly for a friction clutch and method for actuating a friction clutch | |
EP2824346B1 (en) | Friction Clutch for Motor Vehicle Powertrain | |
DE102012213684A1 (en) | Tie rod arrangement for adjustment device for adjusting wear-related incorrect distance of pressure plate of friction clutch to counter plate of dual clutch, has clamping spring which clamps sensor ring between clutch cover and tie rod | |
DE102011086009A1 (en) | Self-adjusting clutch for use in drive train of motor vehicle, has disk spring which is arranged between adjusting ring and sensor spring, where adjusting ring has contact area, with which adjusting ring stands in contact with disk spring | |
DE102013201697A1 (en) | Clutch cover assembly for friction clutch e.g. double clutch, has first and second safety stops that engage behind respective spring tongues on clutch cover and set facing away from specific spring tongues in transport position | |
EP1816366B1 (en) | friction clutch | |
DE102014225788A1 (en) | Self-adjusting coupling with spring-loaded ramp ring to reduce drop-off | |
DE112014004459B4 (en) | Lever spring mounted on two sides for push / pull activation with tie rod | |
WO2015106745A1 (en) | Clutch with helical springs for reducing the increase in release force beyond the wear range | |
DE102013226470A1 (en) | Adjustment device for a friction clutch and method for producing an adjusting device | |
DE102016222503A1 (en) | Adjustment device for a friction clutch | |
DE102011016716A1 (en) | Coupling device e.g. normally-disengaged coupling device, for use in internal combustion engine of motor car, has lever member actuated by actuator, and annular support unit including attachment tip that is in contact with actuator | |
DE102014210994A1 (en) | Clutch cover with separate stop component | |
DE102016202300A1 (en) | Cover arrangement for a friction clutch | |
EP2957789A2 (en) | Support spring for an actuating system of a friction coupling |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14816120 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2014816120 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014816120 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112014006180 Country of ref document: DE |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112014006180 Country of ref document: DE |