EP3874179A1 - Drehschwingungsdämpfungsanordnung - Google Patents
DrehschwingungsdämpfungsanordnungInfo
- Publication number
- EP3874179A1 EP3874179A1 EP19794515.7A EP19794515A EP3874179A1 EP 3874179 A1 EP3874179 A1 EP 3874179A1 EP 19794515 A EP19794515 A EP 19794515A EP 3874179 A1 EP3874179 A1 EP 3874179A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vibration damping
- torsional vibration
- damping arrangement
- sealing
- secondary element
- 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- Withdrawn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
- 238000013016 damping Methods 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 63
- 125000006850 spacer group Chemical group 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000012528 membrane Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005476 soldering Methods 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
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/14—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions combined with a friction coupling for damping vibration or absorbing shock
-
- 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
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
-
- 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
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/133—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
-
- 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
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
-
- 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
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/30—Sealing arrangements
Definitions
- the present invention relates to a torsional vibration damping arrangement for a drive train of a motor vehicle.
- Torsional vibration damping arrangements for the drive train of a motor vehicle such as a dual mass damper (ZMD) or a dual mass flywheel (DMF) are known per se. These are used, for example, in a drive train of a vehicle, in order to dampen rotational irregularities introduced by an engine, for example, which can lead to torsional vibrations.
- Torsional vibration dampers are also known, such as in WO 2014 / 053128A1 and in DE
- a space that surrounds the torsional vibration damping arrangement is filled with, for example, a liquid, for example water
- a rotating torsional vibration damping arrangement water can be pressed past the seals into the torsional vibration damping arrangement by the centrifugal force, which worsens the function of the torsional vibration damping arrangement and reduces durability the torsional vibration damping arrangement can mean.
- the object of the present invention to provide a torsional vibration damping arrangement, the torsional vibration damping arrangement being designed to be sealed against the ingress of dirt particles and liquids and with the seal being simple to manufacture and simple to assemble.
- a torsional vibration damping arrangement for a drive train of a motor vehicle, comprising a primary element rotatable about an axis of rotation (A) and a secondary element which can be rotated relative to the energy store relative to the primary element, the primary element being connected in a rotationally fixed manner to a cover element and form an axially and radially outwardly delimiting receiving space for at least the energy store in relation to a surrounding area, the secondary element radially on the inside provides axially extending connection area and wherein the connection area is open in both axial directions, the connection area of the secondary element being closed in a liquid-tight manner in an axial direction by means of a sealing washer.
- connection area of the secondary element is predominantly a spline with which the secondary element can be connected in a rotationally fixed manner to, for example, a transmission input shaft. Since the splines are preferably produced by means of a broach, the connection area that provides the splines is open in both axial directions. However, in order to prevent liquid, such as water, from passing the splines when the vehicle is wading into the receiving space of the torsional vibration damping arrangement, the connection area must be closed again, that is to say when the splines have been produced. According to the invention, this is provided here by means of the sealing washer.
- the sealing disk can advantageously be connected to the secondary element in a form-fitting and / or material-locking manner.
- a rolling method can be used, by means of which the sealing washer is rolled with the secondary element.
- a circumferential groove or a circumferential depression can advantageously be provided on the secondary element, into which a collar of the sealing disk is shaped or rolled.
- a positive connection which is also liquid-tight, can be produced between the sealing washer and the secondary element.
- the sealing disk can be coated or provided with a sealing layer on the surface to be sealed in order to improve the sealing effect after the shaping process. This can be provided in a manner similar to that of a crown cap which is used in a known manner for closing glass bottles.
- the sealing washer can also be configured comparable to a crown cap.
- the sealing washer can also be made integrally with the secondary element.
- the cohesive connection can be carried out here, for example, by means of gluing or also by means of soldering. It should be mentioned that the sealing washer can only be connected to the secondary element by means of a material bond. This also includes advantageous connections which are designed, for example, as an adhesive connection or a soldered connection. It should be noted further It should be noted that the sealing washer can advantageously be made from sheet metal or also from a plastic.
- the sealing disk provides an opening, the opening being closed by means of a pressure compensation element.
- the opening is advantageously to be provided centrally on the sealing washer.
- the pressure compensation element can be designed as a known membrane. These membranes can advantageously be glued to the sealing washer. Since the sealing disk is directed with one side toward the receiving space of the torsional vibration damping arrangement, pressure fluctuations in the receiving space can be compensated for by the pressure compensation element, which, as already mentioned, closes an opening in the sealing disk. This means that an increase in pressure, for example due to a change in temperature in the receiving space of the torsional vibration damping arrangement, can be compensated for by the pressure compensation element in the direction of the surrounding area.
- the secondary element comprises a hub disk and a flange element, the hub disk being connected to the flange element in a rotationally fixed manner, the connection area being provided on the flange element and the hub disk being in contact with the energy store.
- the secondary element is designed in two parts here. The two-part design enables the hub disk and the flange element to be produced more easily and more cost-effectively, since the flange element forms the connection area with the spline and, in an advantageous embodiment, provides a greater axial extension than the hub disk, which is in contact with the energy store.
- a circumferential groove or recess is provided on the axial side of the flange element, the sealing washer with its circumferentially extending collar being rolled into the circumferential groove of the flange element or recess.
- a liquid-tight connection of the sealing disk to the flange element can be achieved in this way.
- connection area can further comprise a toothing.
- connection area forms a non-rotatable connection with for example a transmission input shaft.
- toothing an axially displaceable and rotationally fixed connection can be achieved in a simple form between the connection area of the secondary element or the flange element and, for example, a transmission input shaft.
- a sealing arrangement is provided between the primary element and the secondary element and / or between the secondary element and the cover element to seal the receiving space from the surrounding area.
- the sealing space of the torsional vibration damping arrangement can advantageously be sealed by means of this sealing arrangement.
- the primary element is closed radially on the inside. This means that the primary element is disc-shaped in its radially inner region.
- the sealing washer can be designed as a sheet metal part. It should be mentioned that the sealing washer is inexpensive to manufacture as a sheet metal part. However, it should also be mentioned here that the sealing washer can also be produced, for example, from a plastic.
- the sealing arrangement comprises a sealing ring and a spacer ring, the spacer ring receiving the sealing ring in a rotationally fixed manner.
- the spacer ring serves primarily to limit the secondary element at least in an axial direction.
- the spacer ring can perform two tasks.
- the spacer ring determines the axial displaceability of the secondary element in at least one axial direction and it serves as a receiving element for the actual sealing ring.
- the seal arrangement is advantageously arranged opposite the surrounding area. It can further be provided that the spacer ring has a greater axial extent than the sealing ring.
- the spacer ring can be made from, for example, a plastic.
- FIG. 1 A torsional vibration damping arrangement according to the invention
- Fig. 2 shows a sealing washer according to the invention
- Fig. 3 shows a sealing washer according to the invention
- FIG. 1 shows a torsional vibration damping arrangement 1 according to the invention.
- the torsional vibration damping arrangement 1 is primarily composed of a primary element 5 and a cover element 6.
- the primary element 5 and the cover element 6 are connected to one another in a rotationally fixed and liquid-tight manner radially on the outside.
- the primary element 5 is connected non-rotatably to a flexplate 14 by means of a rivet connection 16.
- the flexplate 14 can be connected to a drive unit, for example an internal combustion engine, in a rotationally fixed manner.
- the primary element 5 forms with the cover element 6 a radially and axially outwardly defined receiving space 15, in which at least one energy store 4 is accommodated.
- the receiving space 15 is delimited from the surrounding area 25 by means of the primary element 5 and the cover element 6.
- a secondary element 8 is provided axially between the primary element and the cover element 6, which can be rotated about a rotational axis A against a force of the energy store 4 relative to the primary element 5 or in the cover element.
- the secondary element 8 is designed here in two parts.
- a hub disc 9 which is connected in a rotationally fixed manner by means of a rivet connection 45 to a flange element 10, forms the secondary element 8.
- the flange element 10 provides a connection area 24 radially on the inside. It can be clearly seen that the connection area 24 here has an axial extent. In this case, the connection area 24 is primarily implemented by means of a toothing 65.
- the toothing 65 can engage in a corresponding toothing, for example a transmission input shaft, and thus connect the flange element 10 to the transmission input shaft (not shown here) in a rotationally fixed and axially displaceable manner.
- the flange element 10 in the area of the connecting area 24 is closed on one axial side by means of a sealing washer 28.
- the sealing disk 28 provides a circumferential collar 29, the collar 29 being rolled into a groove 11 provided in the flange element 10 by means of a rolling process here .
- a positive connection By rolling the collar 29 of the sealing washer 28 into the groove 11 of the flange element 10, a positive connection can be achieved, whereby this positive connection can be made liquid-tight.
- a spacer ring 20 is provided axially between the cover element 6 and the flange element 10.
- the spacer ring 20 limits the axial movement of the flange element 10 in the direction of the cover element 6.
- the spacer ring 20 is advantageously made of a plastic.
- a sealing ring 17 is also provided radially within the spacer ring. The sealing ring 17 is fastened to the spacer ring 20.
- the spacer ring 20 also serves as a kind of carrier for the sealing ring 17.
- sealing ring 17 provides two sealing lips 21, 24.
- One sealing lip 21 bears against the flange element 10 and the other sealing lip 22 against the cover element 6.
- a sealing arrangement 12 further provided between the primary element 5 and the hub disk 9 is designed here as a diaphragm spring.
- the diaphragm spring 19 generates an axial force on the hub disk 9 and via the flange element 10 and the spacer ring 20 against the cover element 6.
- a sealing disk 28 can be seen in FIG. 3, the sealing disk 28 providing an opening 59 radially on the inside.
- the opening 59 is in turn provided with a pressure compensation element. ment 60 closed.
- the pressure compensation element 60 is designed as a membrane. It is provided here that the pressure compensation element 60 is attached to the sealing disk 28 in a self-adhesive manner. In the event that a higher pressure builds up in the receiving space 15, for example due to temperature fluctuations, than in the surrounding area 25, the higher pressure in the receiving space 15 can escape in the direction of the surrounding area 25 via the pressure compensation element 60.
- the functionality and service life of the torsional vibration damping arrangement 1 can be increased by this pressure compensation.
- the pressure compensating element 60 prevents liquid, for example water, which penetrates into the surrounding area 25 during a waiting process from entering the receiving space 15 through the opening 59.
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 |
|---|---|---|---|
| DE102018218631.6A DE102018218631A1 (de) | 2018-10-31 | 2018-10-31 | Drehschwingungsdämpfungsanordnung |
| PCT/EP2019/078994 WO2020089027A1 (de) | 2018-10-31 | 2019-10-24 | Drehschwingungsdämpfungsanordnung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3874179A1 true EP3874179A1 (de) | 2021-09-08 |
Family
ID=68344850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19794515.7A Withdrawn EP3874179A1 (de) | 2018-10-31 | 2019-10-24 | Drehschwingungsdämpfungsanordnung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3874179A1 (de) |
| DE (1) | DE102018218631A1 (de) |
| WO (1) | WO2020089027A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2594399B2 (ja) * | 1992-02-17 | 1997-03-26 | 株式会社エクセディ | フライホイール組立体 |
| FR2698939B1 (fr) * | 1992-12-08 | 1995-01-20 | Valeo | Amortisseur de torsion, notamment pour véhicule automobile. |
| DE19809176A1 (de) * | 1998-03-04 | 1999-09-09 | Schaeffler Waelzlager Ohg | Schwungrad |
| DE10003044A1 (de) * | 2000-01-25 | 2001-07-26 | Mannesmann Sachs Ag | Torsionsschwingungsdämpfer |
| DE10133693B4 (de) | 2000-07-27 | 2016-03-24 | Schaeffler Technologies AG & Co. KG | Torsionsschwingungsdämpfer |
| DE102005008014A1 (de) * | 2005-02-22 | 2006-08-31 | Schaeffler Kg | Zweimassenschwungrad für ein Kraftfahrzeug |
| DE102009008518A1 (de) * | 2009-02-11 | 2010-08-12 | Magna Powertrain Ag & Co Kg | Zweimassenschwungrad |
| DE102009018204A1 (de) * | 2009-04-22 | 2010-10-28 | Borgwarner Inc., Auburn Hills | Dämpfer-Kupplungs-Anordnung mit einer nasslaufenden Torsionsschwingungsdämpfereinrichtung |
| WO2014053128A1 (de) | 2012-10-01 | 2014-04-10 | Schaeffler Technologies AG & Co. KG | Drehschwingungsdämpfer und reibring hierfür |
| DE102018206611A1 (de) * | 2018-04-27 | 2019-10-31 | Zf Friedrichshafen Ag | Drehschwingungsdämpfungsanordnung |
-
2018
- 2018-10-31 DE DE102018218631.6A patent/DE102018218631A1/de not_active Withdrawn
-
2019
- 2019-10-24 WO PCT/EP2019/078994 patent/WO2020089027A1/de not_active Ceased
- 2019-10-24 EP EP19794515.7A patent/EP3874179A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020089027A1 (de) | 2020-05-07 |
| DE102018218631A1 (de) | 2020-04-30 |
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