EP3265693A1 - Fliehkraftpendeleinrichtung mit druckfedern - Google Patents
Fliehkraftpendeleinrichtung mit druckfedernInfo
- Publication number
- EP3265693A1 EP3265693A1 EP16708073.8A EP16708073A EP3265693A1 EP 3265693 A1 EP3265693 A1 EP 3265693A1 EP 16708073 A EP16708073 A EP 16708073A EP 3265693 A1 EP3265693 A1 EP 3265693A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- coils
- centrifugal pendulum
- pendulum
- pendulum device
- 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- Withdrawn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
- 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 invention relates to a centrifugal pendulum device for arrangement in the
- Drivetrain of a motor vehicle with at least two pendulum masses, which are arranged on at least one carrier disk and can perform a relative movement to the carrier disk along a predetermined pendulum track.
- Centrifugal pendulum device of the type in question serves to reduce
- Such a centrifugal pendulum device comprises at least one pendulum mass, which is suspended for example by means of carrier rollers or the like on a rotating carrier disc and along predetermined pendulum tracks a relative movement to the
- Carrying disk can perform. The structure and function of such
- Centrifugal pendulum device is described for example in DE 10 2006 028 552 A1.
- a centrifugal pendulum device with a carrier disc on the On both sides pendulum sub-masses of a pendulum mass are arranged, too
- Centrifugal pendulum devices are known in which the pendulum masses are arranged between two axially spaced carrier discs.
- damping elements for example, at low speed or too large excitations by exceeding a permissible in operation oscillation angle of the centrifugal pendulum against a rest position in contact with carrier disk or each other come into contact, which can lead to unwanted noise or even damage.
- Stop elements arranged on the pendulum masses or the carrier disk.
- the pendulum masses may be provided with rubber elements, which are arranged, for example, connecting pendulum masses bolts.
- the damping elements can have lifetime problems.
- a centrifugal pendulum device is known, are arranged in the compression springs between the pendulum masses.
- the compression springs dampen a striking of the pendulum masses together. Since the compression springs are loaded under pressure, there is the inherent danger that the springs buckle when compressed. When buckling the middle region of the spring is moved perpendicular to the spring axis, so that the spring axis is arcuate. This can on the one hand affect the spring action, on the other hand, the spring or surrounding components can be damaged, for example by friction.
- An object of the invention is to provide a centrifugal pendulum device with arranged between the pendulum mass springs, in which the risk of
- Centrifugal pendulum device for arrangement in the drive train of a motor vehicle with at least two pendulum masses, which are arranged on at least one carrier disc and can perform along a predetermined pendulum path relative to the carrier disc, wherein between the pendulum masses at least one compression spring is arranged and wherein the compression spring spring ends with adjacent spring coils and has a central spring portion with over the spring length variable geometry of the spring coils.
- the compression spring is preferably a helical compression spring. This is wound or wound from round or profile wire, the wire itself essentially
- the spring ends may comprise one or more spring coils. By the adjacent spring coils, the spring ends are not involved in the spring action and serve to support the compression spring.
- the middle spring area is the area of the compression spring located between the spring ends. The storage of the compression spring or the spring ends, for example, in recesses of the pendulum masses.
- Recesses may additionally have a spike or the like to the Fix spring ends.
- the compression springs are preferably arranged on the end faces of the pendulum masses. This means that the spring axis is substantially tangential to the pendulum motion of the centrifugal pendulum. Under the geometry of the compression spring in the central region in particular the slope, the diameter, the curvature and the like understood more. Preferably, between all pendulum masses of the centrifugal pendulum device compression springs
- the middle spring region has, in one embodiment of the invention, a variable over at least a portion of the spring length pitch of the spring coils.
- the pitch may be variable over the entire central spring range or may vary only over a portion of the central spring range.
- the over the length variable pitch of the spring coils increases the buckling strength of the compression spring.
- variable pitch of the spring coils increases in one embodiment of the invention from the spring ends to a spring center towards. As the spring is compressed, the spring coils closest to the spring ends initially abut against one another, so that the effective spring length in the case of
- the middle spring region in one embodiment of the invention, has a variable diameter over at least part of the spring length
- the diameter can be over the entire middle
- Spring range may be variable or changeable only over part of the central spring range.
- the spring coils are thus helically wound in addition to their helical winding, so that the spring is frustoconical.
- the Compression spring is preferably symmetrical to the spring center, so it has the shape of a double truncated cone. This measure also increases the Ausknickfestmaschine the compression spring.
- variable diameter of the spring coils decreases in one embodiment of the invention from the spring ends to a spring center out. Seen from a spring end, the diameter decreases towards the middle of the spring, reaches its minimum there and increases towards the other end of the spring, so that the shape of a double truncated cone results.
- variable diameter of the spring coils decreases linearly in one embodiment of the invention from the spring ends to a spring center.
- this may also be superlinear or sublinear, in this case does not result in the shape of a cone or double cone, but more or less bulbous or constricted forms of the compression spring.
- the central spring region has a gradient of the spring turns that varies over the length of the spring, as well as one over the
- a central spring portion has a variable over at least a portion of the spring length diameter of the spring coils.
- the compression spring may also have both a variable over at least a portion of the spring length diameter and a variable over at least a portion of the spring length pitch of the spring coils.
- FIG. 1 is a perspective view of a centrifugal pendulum device with arranged between the centrifugal pendulum pendulum compression springs according to the invention
- Fig. 3 is a detail view of two pendulum masses 4 with between them
- Fig. 4 shows a first embodiment of a compression spring according to the invention
- Fig. 5 shows a second embodiment of a compression spring according to the invention
- Fig. 1 shows a three-dimensional view of a centrifugal pendulum device 1 with arranged between the centrifugal pendulum pendulums invention compression springs
- Fig. 2 shows the centrifugal pendulum device 1 in plan view.
- the centrifugal pendulum device 1 is substantially rotationally symmetrical to a rotation axis R.
- the circumferential direction is not otherwise specified below a rotation about the axis of rotation R. Under the axial direction unless otherwise stated the direction is understood parallel to the axis of rotation R, is accordingly under the radial Direction, unless stated otherwise, a direction perpendicular to
- the centrifugal pendulum device 1 is in installation position between a drive unit, in particular an internal combustion engine with a
- crankshaft as a drive shaft
- a clutch which is actuated by a disengaging device and coupled to a transmission arranged.
- the centrifugal pendulum device 1 comprises a support plate 2 which is connectable with a not shown Verstemmitati 3 or by means of rivets or screws with a hub of a clutch disc, not shown.
- Centrifugal pendulum device 1 may also be arranged, for example, on a secondary flange of a dual-mass flywheel, on a one-mass flywheel or on a clutch housing or the like.
- the pendulum masses 4 each comprise two pendulum masses 5a and 5b, which are respectively arranged on both sides of the support plate 2.
- the pendulum masses 5a and 5b of the pendulum mass 4 are each firmly connected to each other and displaceable or
- Carrier disk 2 mounted in a pendulum movable relative to the support plate 2.
- Carrier disk 2 can also be arranged three, four, five or more pendulum masses 4.
- Carrier disk 2 rollers 10 are arranged.
- the rollers 10 in conjunction with the slots 8 in the pendulum sub-masses 5 and the slots 9 in the
- Carrier disk 2 a slide guide for the pendulum mass 4, the movement of the pendulum mass 4 along predetermined paths relative to the support plate.
- Pendulum masses 4 are designed so that the center of gravity of the pendulum mass 4 with a radius around the distance to a center, which is given by the rotation axis R, oscillates. This movement creates a variable distance of the pendulum mass 4 with a radius around the distance to a center, which is given by the rotation axis R, oscillates. This movement creates a variable distance of the pendulum mass 4 with a radius around the distance to a center, which is given by the rotation axis R, oscillates. This movement creates a variable distance of the
- the ratio of radius to distance is a measure of the order with which the pendulum mass 4 are excited to vibrate.
- the centrifugal pendulum device comprises a double flange, this comprises two centrifugal pendulum flanges, which surround a pendulum mass axially on both sides.
- the pendulum masses each comprise pendulum part masses on both sides of the centrifugal pendulum
- the centrifugal pendulum device with double flange compact pendulum masses, which may consist of a plurality of sheets, which are interconnected, and are enclosed by two centrifugal pendulum flanges.
- compression springs 12 are arranged between the two pendulum masses.
- the compression springs 12 push the pendulum masses 4 in an unloaded starting position with a
- the pendulum masses 4 each have fastening means for receiving the compression springs 12 at end faces 13 located in the circumferential direction.
- the compression springs 12 and the fastening means are arranged in recesses 14 of the support disk 2.
- the recesses 14 are radially outwardly in each case by a web 15 of the
- Carrier disk 2 limited.
- the webs 15 each include a nose 16 which extends radially outward.
- the fastening means may for example comprise lugs or projections which project into the turns of the compression spring 12 at the spring ends 20 and define these transversely to the spring longitudinal axis and may also comprise recesses on the end faces 13 of the pendulum masses 4.
- Fig. 3 shows a detailed representation of two pendulum masses 4 with arranged between them compression spring 12. At the end faces 13 of the pendulum masses 4 are
- Recesses 17 introduced as part of the fastening means for receiving the spring ends of the compression springs 12. At a bottom 18 of the recesses 17 lugs or projections are arranged in the spring coils of the spring ends of
- FIGS. 4 and 5 show exemplary embodiments of compression springs 12 according to the invention in a side view.
- the compression spring 12 according to FIG. 4 has a variable pitch along the spring axle 9, the compression spring 12 according to FIG. 4
- the compression spring 12 according to FIG. 4 is a helical spring and comprises
- the spring coils 21 are formed by spirally winding a spring wire.
- the spring wire has over the spring length L constant spring diameter d.
- the coil spring 12 has an inner diameter Di, an outer diameter D A and a mean diameter D.
- D A Di + 2 d
- the outer diameter corresponds to the sum of inner diameter and double wire diameter
- Diameter is thus the mean of outer and inner diameter
- the coil spring 12 has a pitch s, which is measured from the wire center to the wire center of two successive turns parallel to the longitudinal axis. In a central spring region 22 of the compression spring 12, the pitch s with unloaded compression spring 12 is greater than the wire diameter d, so that adjacent spring coils 21 have a distance a from each other.
- the compression spring 12 comprises two spring ends 20 on which the spring wire in each case three spring coils 21 a, 21 b, 21 c abuts each other, the slope s is therefore equal to the spring diameter d.
- Spring coils can also be lower or higher. For example, two adjacent spring coils 21 with unloaded compression spring 12 abut each other. Starting from one of the spring ends 20, the adjoining
- Fig. 5 shows an alternative embodiment of a coil spring 12. This has, like the embodiment shown above spring ends 20 with abutting spring coils.
- the arranged between the two spring ends 20 middle spring portion 22 has at a constant over the spring length L slope s a variable spring diameter D. Since the used spring wire has the same diameter over the spring length applies the relationship described above between the outer diameter, inner diameter and spring thickness. For the sake of simplicity, the following information is based solely on the mean spring diameter D.
- the spring diameter decreases starting from the spring ends 20 to the spring center 23 each continuously, the spring has the shape of a double cone in section.
- the compression spring 12 in FIG. 4 is symmetrical with respect to the spring center 23 with respect to the variable pitch s. Accordingly, the compression spring 12 in FIG. 5 is symmetrical with respect to the spring center 23 with respect to the mean diameter D.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015204027.5A DE102015204027A1 (de) | 2015-03-06 | 2015-03-06 | Fliehkraftpendeleinrichtung mit Druckfedern |
PCT/DE2016/200095 WO2016141934A1 (de) | 2015-03-06 | 2016-02-16 | Fliehkraftpendeleinrichtung mit druckfedern |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3265693A1 true EP3265693A1 (de) | 2018-01-10 |
Family
ID=55456535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16708073.8A Withdrawn EP3265693A1 (de) | 2015-03-06 | 2016-02-16 | Fliehkraftpendeleinrichtung mit druckfedern |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3265693A1 (de) |
CN (1) | CN107278244B (de) |
DE (2) | DE102015204027A1 (de) |
WO (1) | WO2016141934A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10060504B2 (en) * | 2016-04-21 | 2018-08-28 | Schaeffler Technologies AG & Co. KG | Centrifugal pendulum absorber including springs fixed to circumferential edges of masses |
DE102016222379A1 (de) | 2016-11-15 | 2018-05-17 | Schaeffler Technologies AG & Co. KG | Fliehkraftpendel |
DE102018108414A1 (de) * | 2018-04-10 | 2019-10-10 | Schaeffler Technologies AG & Co. KG | Drehschwingungsdämpfer |
JP7545350B2 (ja) * | 2021-03-05 | 2024-09-04 | 日立Astemo株式会社 | 電磁式燃料噴射弁 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2620501A1 (fr) * | 1987-09-10 | 1989-03-17 | Valeo | Dispositif amortisseur de torsion |
JP2005106134A (ja) * | 2003-09-29 | 2005-04-21 | Aisin Seiki Co Ltd | コイルスプリング及びそれを用いたトルク伝達・変動吸収装置 |
DE102006028552B4 (de) | 2005-10-29 | 2024-05-08 | Schaeffler Technologies AG & Co. KG | Kupplungseinrichtung mit Kupplungsscheibe |
CN2871973Y (zh) * | 2006-03-06 | 2007-02-21 | 山东理工大学 | 汽车离合器用变刚度扭转减振器 |
CN101718315A (zh) * | 2009-12-10 | 2010-06-02 | 上海交通大学 | 离心式吸振离合器 |
CN103917801B (zh) * | 2011-09-09 | 2015-12-09 | 舍弗勒技术股份两合公司 | 离心摆和具有该离心摆的离合器盘 |
DE102012221103A1 (de) * | 2012-11-19 | 2014-05-22 | Schaeffler Technologies Gmbh & Co. Kg | Fliehkraftpendeleinrichtung |
DE102014210489B4 (de) | 2013-06-10 | 2024-08-22 | Schaeffler Technologies AG & Co. KG | Fliehkraftpendel |
DE102014217251A1 (de) * | 2014-08-29 | 2016-03-03 | Schaeffler Technologies AG & Co. KG | Fliehkraftpendel |
-
2015
- 2015-03-06 DE DE102015204027.5A patent/DE102015204027A1/de not_active Withdrawn
-
2016
- 2016-02-16 WO PCT/DE2016/200095 patent/WO2016141934A1/de active Application Filing
- 2016-02-16 DE DE112016001069.9T patent/DE112016001069A5/de not_active Ceased
- 2016-02-16 EP EP16708073.8A patent/EP3265693A1/de not_active Withdrawn
- 2016-02-16 CN CN201680012442.5A patent/CN107278244B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN107278244B (zh) | 2020-09-11 |
CN107278244A (zh) | 2017-10-20 |
DE112016001069A5 (de) | 2018-01-04 |
DE102015204027A1 (de) | 2016-09-08 |
WO2016141934A1 (de) | 2016-09-15 |
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Legal Events
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20180919 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20190121 |
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P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |