WO2023202739A1 - Amortisseur de vibrations de torsion - Google Patents

Amortisseur de vibrations de torsion Download PDF

Info

Publication number
WO2023202739A1
WO2023202739A1 PCT/DE2023/100240 DE2023100240W WO2023202739A1 WO 2023202739 A1 WO2023202739 A1 WO 2023202739A1 DE 2023100240 W DE2023100240 W DE 2023100240W WO 2023202739 A1 WO2023202739 A1 WO 2023202739A1
Authority
WO
WIPO (PCT)
Prior art keywords
output part
torsional vibration
segments
vibration damper
output
Prior art date
Application number
PCT/DE2023/100240
Other languages
German (de)
English (en)
Inventor
Pascal Strasser
Original Assignee
Schaeffler Technologies AG & Co. KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2023202739A1 publication Critical patent/WO2023202739A1/fr

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
    • F16F15/12—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
    • F16F15/1207—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 characterised by the supporting arrangement of the damper unit
    • 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
    • F16F15/13142—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 characterised by the method of assembly, production or treatment
    • F16F15/1315—Multi-part primary or secondary masses, e.g. assembled from pieces of sheet steel
    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/22—Vibration damping

Definitions

  • the invention relates to a torsional vibration damper, in particular for the drive train of a motor vehicle.
  • Motor vehicles have a drive train in which torque fluctuations can occur.
  • torque fluctuations occur in particular in internal combustion engines or hybrid engines with internal combustion engines because the internal combustion engine generates periodic torque fluctuations. This can result in torque peaks that should not be transmitted in order to protect units in the drive train.
  • torque peaks occur not only from the engine side, but also from the wheel side, which must be dampened using such torsional vibration dampers.
  • Such torsional vibration dampers are typically arranged between a drive shaft and a downstream transmission. If the downstream transmission has a susceptibility to gear rattling, it is also known that a pretensioning device is provided between the torsional vibration damper and the transmission in order to cause a preload on the transmission parts so that the rattling of the transmission parts is prevented.
  • Such a pretensioning device is typically attached to a fastening ring on the torsional vibration damper, the fastening ring being riveted with rivet elements to the output part of the torsional vibration damper, so that the pretensioning device can, for example, be screwed to this fastening ring fastened in this way.
  • the fastening ring provides several screwing points with internal threads in order to be able to screw in fastening screws for screwing the pretensioning device.
  • Such a design of the fastening for example a pretensioning device with a riveted fastening ring, has the necessary stability to apply a pretensioning force, but this is at the expense of the stable design of the fastening ring, which is to be fastened to the output part. This results in high material, assembly and cost expenditure.
  • the output part has internal teeth for connection to a shaft.
  • the output part is a component with an output hub or is the output hub.
  • the output hub is arranged on the secondary side of the torsional vibration damper and transmits the torques introduced from the crankshaft into the primary side and from there transmitted to the output element via the damping device to a transmission shaft.
  • the output element is preferably an output flange, which is operatively connected to the damping device.
  • the output flange is either directly connected to the output flange (e.g. via rivets or screws), or connected to the output flange in a non-positive and frictional manner via a torque limiter.
  • a one-piece design of the output part with the output element can also be provided.
  • One embodiment of the invention relates to a torsional vibration damper with an input part and an output part.
  • the input part is a component on the primary side, which is preferably connected to a crankshaft or other drive shaft of a drive machine on the input side or primary side of the torsional vibration damper.
  • the output part is a component on the secondary side, which is connected to a shaft of a clutch or a shaft on the output side of the torsional vibration damper Gear shaft is connected.
  • the term “shaft” covers all elements that are provided on the output side/secondary side of the torsional vibration damper to absorb and transmit the torque into the drive train.
  • the input part and the output part are not rigidly connected to one another, but can be rotated relative to one another through limited angles of rotation against restoring forces of the damping springs with the interposition of damping springs, but are coupled to each other to transmit torque via the damping springs or, in the case of torque peaks, via stops.
  • the damper device has an output element or is operatively connected to it.
  • the output element is usually an output flange assigned to the secondary side of the torsional vibration damper or the damping device, which is supported with its wings on the circumference of the damping springs.
  • the output part is an output hub and has a disk area on which the output part and the output element are connected to one another.
  • the output part has the connecting means for connecting an additional component to the output part.
  • the additional component is, for example, a clamping plate.
  • the output part is therefore designed and used both as before for the connection to the output element of the damper device and according to the invention for connection to the pretensioning device. It can be based on an additional connecting element, such as that described for example in DE 10 2018 104 493 A1, which has to be manufactured and assembled separately, can be dispensed with.
  • the connecting means are optionally provided with internal or external threads and/or threaded pieces. Threaded pieces are either provided with external threads, i.e. threaded bolts, or with internal threads. The internal threads are formed on nuts or pieces with any other external contour.
  • the bolts or threaded pieces are attached to the segments or to the output hub in a form-fitting, non-positive or material-locking manner.
  • Combinations of fastening methods are also conceivable. Examples are clamp or press fits, plug-in connections in combination with welding or elements applied by friction or butt welding.
  • the output part has a sleeve region projecting radially on the inside in the axial direction and having internal teeth. As a result, the output part can be designed to save space and effectively in order to achieve a connection to a downstream shaft, for example for a shaft of a downstream transmission.
  • the output part has an annular region radially on the outside, in particular as a base body, which serves to rivet and/or connect the output part, for example to the output element of the damper device, and to form the connecting means.
  • the output part can be designed and used in a double functional manner radially on the outside.
  • the output part has first segments and second segments radially on the outside, the first segments having first surfaces in a first plane and the second segments having second surfaces in a second plane, the first plane and the second plane being parallel to one another and are aligned perpendicular to the axis of rotation of the torsional vibration damper.
  • connection to the output element can be provided spatially separated from the connecting means, in particular also axially and in the circumferential direction.
  • first level and the second level are arranged at a distance from one another. This results in an axial separation, whereby elasticities of the disk area can also be used.
  • first segments and the second segments are arranged alternately distributed over the circumference. This achieves a good distribution of force in the circumferential direction.
  • first segments with their first surfaces serve to rivet or connect the output part, for example with the output element of the damper device, and that the second segments with their second surfaces serve to form the connecting means. This achieves good decoupling.
  • the second segments are formed by forming or reshaping a pocket, bridge or tab from the disk area of the starting part. In this way, axial separation can be carried out cleverly.
  • a pocket is a projecting element which is formed from a base body of the disc region of the output part and connects to the base body on three sides and/or a bridge is a projecting element which is formed from a base body of the disc region of the output part and connects to the base body on two sides and is cut free on one side and / or a tab is a projecting element which is formed from a base body of the disk area of the output part and connects to the base body on one side and is cut free on two sides.
  • the pockets, bridges or tabs can be produced effectively and form an axial distance from the first surfaces. The free cuts can achieve an elastic effect without undesirable weakening of the material.
  • the pocket, bridge and/or tab is cut free on the radial outside. By cutting, an elastic effect can be achieved without undesirable weakening of the material.
  • Show: 1 shows a schematic partial sectional representation of a first exemplary embodiment of a torsional vibration damper 1 according to the invention
  • Figure 2 is a schematic side view of the torsional vibration damper 1 according to Figure 1,
  • Figure 3 is a schematic side view of the output part 3 of the torsional vibration damper 1 according to Figures 1 and 2,
  • FIG. 4 shows a schematic partial sectional view of the output part 3 of the torsional vibration damper according to FIG. 3,
  • Figure 5 shows an enlarged detail of Figure 4
  • FIG. 6 shows a schematic side view of an output part 3 of a second exemplary embodiment of a torsional vibration damper according to the invention, which is otherwise not shown,
  • Figure 7 is a schematic partial sectional view of the output part 3 according to Figure 6,
  • FIG. 8 shows a schematic side view of an output part 3 of a third exemplary embodiment of a torsional vibration damper according to the invention but otherwise not shown,
  • Figure 9 is a schematic sectional view of the output part 3 according to Figure 8. 10 shows a longitudinal section along the axis of rotation 34 of a further exemplary embodiment of a torsional vibration damper 35 and
  • FIG. 11 shows a longitudinal section along the axis of rotation 34 of a further exemplary embodiment of a torsional vibration damper 36.
  • Figures 1 to 5 show different views of a first exemplary embodiment of a torsional vibration damper 1 according to the invention, in particular for a drive train of a motor vehicle.
  • the torsional vibration damper 1 has an input part 2 and an output part 3.
  • the input part 2 can be screwed, for example, to a crankshaft of a drive motor.
  • the output part 3 can be connected, for example, to a shaft of a downstream transmission.
  • the input part 2 is designed and arranged to be rotatable relative to the output part 3 against the restoring force of a damper device 4.
  • the damper device 4 is, for example, a spring damper device 5 with spring elements 6.
  • the damper device 4 can alternatively or additionally also be designed as a centrifugal pendulum device, friction damping device and/or slip clutch device or with such a centrifugal pendulum device, friction damping device and/or slip clutch device.
  • the damper device 4 has an output element 7, which in the present exemplary embodiment is designed as a disk-shaped flange. A torque is transmitted from the input part 2 via the spring elements 6 to the output element 7.
  • the output element 7 of the damper device 4 is an output flange and is connected to the output part 3 in a torque-transmitting manner.
  • a positive, non-positive and/or cohesive connection can be provided. This The connection can be made, for example, by a one-piece design of the output element 7 and output part 3 or by riveting, welding, soldering, screwing, etc. of the output element 7 to the output part 3. In the exemplary embodiment shown, riveting takes place using the rivet elements 12.
  • the output part 3 has a disk area 8, which serves to connect to the output element 7. The connection of the output element 7 to the output part 3 takes place in this disk area 8.
  • the output part 3 also has, for example, a sleeve region 9 projecting in the axial direction radially on the inside, which has internal teeth 10 and is used for connection to a shaft.
  • the output part 3 also has connecting means 11 for screwing an additional component to the output part 3.
  • the connecting means 11 can be designed as screw holes 13 with internal threads 14, as can be seen in Figures 1 to 5.
  • the output part 3 has an annular region 15 radially on the outside, which serves to rivet and/or connect the output part 3, for example to the output element 7 of the damper device 4, and also to form the connecting means 11.
  • the output part 3, in particular the ring region 15, has first segments 16 and second segments 17 radially on the outside.
  • the first segments 16 and the second segments 17 are arranged alternately in the circumferential direction and, for example, encompass the entire circumference of the ring region 15.
  • the first segments 16 and the second segments 17 are therefore arranged alternately distributed over the circumference.
  • the first segments 16 have first surfaces 18 in a first plane 19.
  • the second segments 17 have second surfaces 22 in a second level 20.
  • the first level 19 and the second level 20 are aligned parallel to one another and perpendicular to the axis of rotation 21 of the torsional vibration damper 1.
  • the first level 19 and the second level 20 are arranged at a distance from one another.
  • the distance between the first level 19 and the second level 20 forms an axial offset of the first surfaces 18 with the second surfaces 22.
  • the first segments 16 with their first surfaces 18 serve to rivet or connect the output part 3, for example with the output element 7 of the damper device 4.
  • the second segments 17 with their second surfaces 22 serve to form the connecting means 11.
  • the second segments 17 are formed by forming or reshaping a pocket 30, bridge 29 or tab 31 from the disk area 8 of the output part 3.
  • the second segments 17 are designed as a bridge 29.
  • a bridge 29 is a projecting element which is formed from a base body of the disk area 8 of the output part 3 and connects to the base body on two sides and is cut free on one side.
  • the second segments 17 connect to the base body on the two sides 23 in the circumferential direction and are cut free on the radially inner side 24.
  • the bridge 29 is also cut free on the radial outside.
  • Figures 6 and 7 show an output part 3 designed as an output hub of a further torsional vibration damper 1 according to the invention, the torsional vibration damper 1 of Figures 6 and 7 basically being designed almost identically to the torsional vibration damper 1 of Figures 1 to 5, so that reference can be made to this in this regard Description is referenced.
  • the difference in the exemplary embodiment of Figures 6 and 7 is that the second segments 17 are not designed as a bridge 29 but as a pocket 30, such that a pocket 30 is a projecting element which is formed from a base body of the disk area 8 of the output part 3 and connects to the base body on three sides. Accordingly, it can be seen that the second segments 17 connect to the base body on the two sides 25 in the circumferential direction and also connect to the base body on the radially inner side 26.
  • the pocket 30 is also cut free on the radial outside.
  • Figures 8 and 9 show an output part 3 designed as an output hub of a further torsional vibration damper 1 according to the invention, the torsional vibration damper 1 of Figures 8 and 9 basically being designed almost identically to the torsional vibration damper 1 of Figures 1 to 5, so that reference can be made to this in this regard Description is referenced.
  • the difference in the exemplary embodiment of Figures 8 and 9 is that the second segments 17 are not designed as a bridge 29 but as a tab 31, such that a tab 31 is a projecting element which is formed from a base body of the disk area 8 of the output part 3 and only connects to the base body on one side and is cut free on two sides. Accordingly, it can be seen that the second segments 17 are cut free on the two sides 27 in the circumferential direction and connect to the base body on the radially inner side 28. The tab 31 is also cut free radially on the outside.
  • the primary element 37 of the torsional vibration damper 35 shown in FIG. 10 has a primary plate 38 and a primary cover 39.
  • the primary plate 38 is connected on the input side to a component 40, for example for coupling to a drive shaft, not shown, of a drive machine.
  • the torsional vibration damper 35 is provided with the primary-side input part 2 in the form of the primary plate 38.
  • the secondary element 41 of the torsional vibration damper 35 is provided with a secondary-side output element 7 and the output part 3.
  • the output element 7 is an output flange 42 and the output part 3 is an output hub 43.
  • the output flange 42 and the output hub 43 are firmly connected to one another.
  • the damper device 4 is accommodated in the form of coil springs 44 and 45 in a chamber that is axially closed by the primary cover 39.
  • the coil springs 44 and 45 are supported on the circumference of the primary plate 38 and on the secondary side on the circumference of the output flange 42.
  • the secondary-side output part 3 i.e. the output hub 43, has connecting means 11 for fastening an additional component 33 of a pretensioning device, which is otherwise not shown.
  • the output hub 43 is provided with an internal toothing 10 for the torque-transmitting connection with a counter-toothing 48 of a shaft 46, which can be a transmission shaft or leads to a clutch. Due to the execution of the drawing, only one of the connecting means 11 is completely visible.
  • the connecting means 11 are internal threads 49 for screws 50, with which the additional component 33 is attached to the output hub 43.
  • the internal threads 49 are optionally introduced into an annular region 15 and/or into segments 17, which are designed as circumferential and/or partial axial material thickenings on the output hub 43.
  • the output hub 43 can optionally be formed as a solid component from machining, forged or pressed component or by cold forming from sheet metal. An output hub is also conceivable, the production of which involved several of the aforementioned implicit processes.
  • the torsional vibration damper 36 shown in FIG. 11 is essentially designed like the torsional vibration damper 35 shown in FIG. 10, but differs in terms of the design of its output hub 51. With the exception of the output hub 51, which differs in design, this can initially be the case until then Description of Figure 10 can be taken as a basis.
  • the output hub 51 is a sheet metal component which is provided radially on the inside with a sleeve region 9 which projects in the axial direction towards the primary side.
  • the sleeve area 9 has the internal toothing 10 for the torque-transmitting connection with a counter-toothing 48 of a shaft 46, which can be a transmission shaft or leads to a clutch.
  • the ring area 15 of the output hub 51 is provided with segments 17 to which threaded pieces 32 are attached.
  • the threaded pieces 32 are arranged on the back of the segments 17, ie on the side of the output hub 51 facing the output element 7, axially between the respective segment 17 and the output flange 42.
  • the additional component 33 is attached to the output hub 51 by means of screws 50 screwed into the internal threads of the threaded pieces 32.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un amortisseur de vibrations de torsion (1) comprenant une partie entrée (2) et une partie sortie (3), la partie entrée (2) pouvant tourner par rapport à la partie sortie (3) à l'encontre de la force de rappel d'un dispositif d'amortissement (4), le dispositif d'amortissement (4) présentant un élément de sortie (7), qui est relié à la partie sortie (3) à des fins de transmission de couple, la partie sortie (3) ayant une région de disque (8), qui sert à la liaison à l'élément de sortie (7), la partie sortie (3) ayant des moyens de liaison (11) pour une liaison par vissage d'un élément supplémentaire à la partie sortie (3).
PCT/DE2023/100240 2022-04-19 2023-03-29 Amortisseur de vibrations de torsion WO2023202739A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022109418.9 2022-04-19
DE102022109418 2022-04-19

Publications (1)

Publication Number Publication Date
WO2023202739A1 true WO2023202739A1 (fr) 2023-10-26

Family

ID=85979528

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2023/100240 WO2023202739A1 (fr) 2022-04-19 2023-03-29 Amortisseur de vibrations de torsion

Country Status (1)

Country Link
WO (1) WO2023202739A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011108486A1 (de) * 2010-08-16 2012-03-08 Schaeffler Technologies Gmbh & Co. Kg Verbindungseinrichtung und Drehmomentübertragungsanordnung
DE102017106109A1 (de) * 2016-05-04 2017-11-09 Schaeffler Technologies AG & Co. KG Abtriebsnabe für Drehmomentübertragungseinrichtung
DE102017126224A1 (de) * 2017-11-09 2019-05-09 Schaeffler Technologies AG & Co. KG Rotationsmasseanordnung
DE102018104493A1 (de) 2018-02-28 2019-08-29 Schaeffler Technologies AG & Co. KG Teilantriebsstrang und Drehschwingungsdämpfer für diesen
DE102019129063A1 (de) * 2019-10-28 2021-04-29 Schaeffler Technologies AG & Co. KG Verbindungselement für eine Welle-Nabe-Verbindung, insbesondere zur Drehmomentübertragung in einem Antriebsstrang eines Kraftfahrzeugs
DE102020103924A1 (de) * 2020-02-14 2021-08-19 Schaeffler Technologies AG & Co. KG Verfahren zur Demontage und Verfahren zur Montage eines Drehschwingungsdämpfers sowie Drehschwingungsdämpfer
DE102020117460A1 (de) * 2020-07-02 2022-01-05 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpferanordnung und Hybridmodul mit einer Drehschwingungsdämpferanordnung
KR20220027534A (ko) * 2020-08-27 2022-03-08 주식회사평화발레오 직렬형 이중 토셔널 댐퍼

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011108486A1 (de) * 2010-08-16 2012-03-08 Schaeffler Technologies Gmbh & Co. Kg Verbindungseinrichtung und Drehmomentübertragungsanordnung
DE102017106109A1 (de) * 2016-05-04 2017-11-09 Schaeffler Technologies AG & Co. KG Abtriebsnabe für Drehmomentübertragungseinrichtung
DE102017126224A1 (de) * 2017-11-09 2019-05-09 Schaeffler Technologies AG & Co. KG Rotationsmasseanordnung
DE102018104493A1 (de) 2018-02-28 2019-08-29 Schaeffler Technologies AG & Co. KG Teilantriebsstrang und Drehschwingungsdämpfer für diesen
DE102019129063A1 (de) * 2019-10-28 2021-04-29 Schaeffler Technologies AG & Co. KG Verbindungselement für eine Welle-Nabe-Verbindung, insbesondere zur Drehmomentübertragung in einem Antriebsstrang eines Kraftfahrzeugs
DE102020103924A1 (de) * 2020-02-14 2021-08-19 Schaeffler Technologies AG & Co. KG Verfahren zur Demontage und Verfahren zur Montage eines Drehschwingungsdämpfers sowie Drehschwingungsdämpfer
DE102020117460A1 (de) * 2020-07-02 2022-01-05 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpferanordnung und Hybridmodul mit einer Drehschwingungsdämpferanordnung
KR20220027534A (ko) * 2020-08-27 2022-03-08 주식회사평화발레오 직렬형 이중 토셔널 댐퍼

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