WO2020245086A1 - Dispositif de transmission de couple - Google Patents

Dispositif de transmission de couple Download PDF

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Publication number
WO2020245086A1
WO2020245086A1 PCT/EP2020/065146 EP2020065146W WO2020245086A1 WO 2020245086 A1 WO2020245086 A1 WO 2020245086A1 EP 2020065146 W EP2020065146 W EP 2020065146W WO 2020245086 A1 WO2020245086 A1 WO 2020245086A1
Authority
WO
WIPO (PCT)
Prior art keywords
torque
transmission device
torque transmission
region
input element
Prior art date
Application number
PCT/EP2020/065146
Other languages
German (de)
English (en)
Inventor
Stefan Herzog
Vít PROŠEK
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Priority to EP20731811.4A priority Critical patent/EP3980665A1/fr
Priority to CN202080040459.8A priority patent/CN113906239A/zh
Publication of WO2020245086A1 publication Critical patent/WO2020245086A1/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
    • F16F15/129—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 friction-damping means
    • F16F15/1297—Overload protection, i.e. means for limiting torque
    • 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
    • F16F15/1232—Wound springs characterised by the spring mounting
    • 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
    • F16F15/30—Flywheels

Definitions

  • the invention relates to a torque transmission device, in particular for the drive train of a motor vehicle, comprising an input element and an output element, which are rotatable relative to one another via an energy storage device and about a common axis of rotation and wherein a torque limiting device is arranged between the input element and output element, the torque limiting device being designed To transmit a torque between the input element and output element below a torque value and to transmit at least partially, in particular completely, no torque above the torque value.
  • the invention further relates to a method for producing a torque transmission device, in particular for the drive train of a motor vehicle, comprising the steps
  • a known torque transmission device has become known, for example, from DE 10 2012 211 990 A1.
  • the torque transmission device in particular for a drive train of an internal combustion engine-driven motor vehicle, has an input part and an output part with a common axis of rotation about which the input part and the output part can be rotated together and are rotatable to a limited extent relative to each other, at least one energy store effective between the input part and the output part, which is supported on the input part on the one hand and on the output part on the other hand, and a torque limiting device arranged ki nematically between the at least one energy store and the input part or the output part which the torque limiting device has a support section on which the at least one energy store is supported and which rests positively and non-positively on the input part or on the output part and a spring section which causes a pre-tensioned contact of the support section on the input part or on the output part and at a support force exceeding a predetermined value of the at least one energy store on the support section under compression allows the support
  • One object of the present invention is therefore to provide a torque transmission device which enables a limitation of torque peaks and is at the same time simple in construction and inexpensive to manufacture.
  • Another object of the present invention is to provide an alternative torque transmission device and an alternative method for producing a torque transmission device.
  • the present invention solves the above-mentioned objects with an embodiment in the form of a torque transmission device, in particular for the drive train of a motor vehicle, comprising an input element and an output element, which are rotatable relative to one another via an energy storage device and about a common axis of rotation and with a torque limit is arranged between the input element and output element, wherein the torque limiting device is designed, below a torque value, a torque between the input element and output element Ment to transmit and to transmit at least partially no torque above the torque value, in that the torque limiting device is connected to the energy storage device via a non-positive and / or positive connection and is connected to the input element via a frictional connection.
  • the present invention solves the above-mentioned objects with an embodiment in the form of a method for producing a torque transmission device, in particular for the drive train of a motor vehicle
  • a torque limiting device the torque limiting device being designed to transmit a torque between the input element and the output element below a torque value and at least partially, in particular completely, not to transmit any torque above the torque value
  • the torque limiting device is connected to the energy storage device via a non-positive and / or positive connection and to the input element via a frictional connection.
  • the torque limiting device comprises an axially pretensioned element for providing the frictional connection. This enables a simple and inexpensive provision of a frictional connection. The frictional force and thus the torque limitation can be adjusted in a particularly simple manner on the basis of the axial preload.
  • the axially pre-stressed element has a first area which is arranged laterally in the axial direction next to the energy storage device and which is designed to provide the frictional connection to the input element.
  • the installation space in addition to the energy storage device is thus used efficiently.
  • the first area of the axially pre-tensioned element is designed to provide the non-positive and positive connection to the energy storage device. This provides a space-efficient non-positive and positive connection between the axially pretensioned element and the energy storage device.
  • the axially prestressed element is essentially L-shaped in cross section, the first area forming the longer leg of the L-shape. This makes it possible to provide an axially pretensioned element that is easy to manufacture and at the same time space-efficient.
  • the axially pretensioned element has a second region with a U-shaped cross section, such that the first region and part of the second region are arranged in parallel in cross section.
  • At least one support surface in particular two support surfaces along both directions of rotation, is arranged on the second area in the circumferential direction. This provides a simple connection between the axially pretensioned element and the energy storage device.
  • the at least one support surface is curved.
  • the at least one support surface has a projection in the circumferential direction outward in the radial direction. A displacement of an element of the energy storage device that interacts with the support element is avoided radially outward, and the reliability of the torque transmission device is improved.
  • the at least one support area is integrally formed on the second area. This enables a simple and inexpensive production of the support surface.
  • the at least one support area is arranged on a plug-on element which can be plugged onto the second area. This increases flexibility. Depending on the requirements of the support surface, different slip-on elements can be used for different torque transmission devices.
  • the axially prestressed element is arranged in the direction of rotation.
  • a sufficiently large friction surface is provided, which increases the reliability in the transmission of torque; the axially pretensioned element thus forms a ring.
  • the axially prestressed element can be prestressed by means of a housing part arranged on the output side. This enables simple assembly of the axially prestressed element.
  • FIG. 1 in cross section a torque transmission device according to a
  • FIG. 2 shows, in a three-dimensional view, a detail of an axially prestressed element of the torque transmission device of FIG. 1;
  • FIG. 3 shows a top view of a detail of a torque transmission device according to an embodiment of the present invention.
  • Figure 1 shows in cross section a torque transmission device according to an embodiment of the present invention.
  • Figure 1 shows a torque transmission device 1 in the form of a torsion damper with an input part 2 in the form of a primary flywheel and an output part 3 mentioned here in the form of a hub disk.
  • Primary flywheel 2 and hub disk 3 are rotatable relative to one another via an energy storage device 4 and about a common axis of rotation 100.
  • a torque limiting device 10 is arranged between the primary flywheel 2 and the energy storage device 4, the torque limiting device 10 being designed to transmit a torque between the primary flywheel 2 and hub disk 3 below a torque value and at least partially not to transmit any torque above the torque value.
  • the torque limiting device 10 has an axially pretensioned, essentially pot-n-shaped element 5, which rests in a frictionally locking manner through axial pretensioning on the inside of the primary flywheel 2 and in this way below a predeterminable maximum torque, for example by selecting the materials and / or the axial preload transmits a torque. Above the predeterminable torque, the frictional connection provided by the axial preload is canceled, no more torque is introduced into the energy storage device 4 and damage to the torque transmission device 1 is thus avoided.
  • the pot-shaped element 5 is hereby axially prestressed by means of a cover part 16 which, on the output side, next to the primary flywheel 2, forms the toroidal space 11 for the energy storage device 4 arranged in the direction of rotation.
  • a cover part 16 which, on the output side, next to the primary flywheel 2, forms the toroidal space 11 for the energy storage device 4 arranged in the direction of rotation.
  • it has a section radially above the energy storage device 4 parallel to the axis of rotation 100, which in the area of the primary flywheel merges into a first area 6 extending radially inward.
  • the first area 6 is due to the axial preload with a predetermined force.
  • Gen the inside of the primary flywheel and causes - as already stated above - a frictional connection between the primary flywheel 2 and the cup-shaped element 5.
  • the cup-shaped element 5 also has a second area 7 running parallel to it, which is connected to a spring plate 4a of the energy storage device 4 cooperates.
  • the energy storage device 4 has one or more spring plates 4a which interact with springs 4b to dampen the torsional vibrations.
  • the pot-shaped element 5 can also have a suitable number of second areas 7 for cooperation with the energy storage device 4.
  • FIG. 2 shows a three-dimensional view of a section of an axially pretensioned element of the torque transmission device of FIG. 1.
  • FIG. 2 shows in detail a section of the axially pretensioned element 5.
  • the second area 7 of the pot-shaped element 5 has a push-on element 15, which is attached to the second area 7 or otherwise connected to it, for example by means of a press fit or the like.
  • the Aufsteckelement 15 has two in the circumferential direction opposite and concave formed support surfaces 12a, 12b, which are used to receive correspondingly convex ter surfaces of the respective spring plate 4a of the energy storage device 4.
  • the pot-shaped element 5 is formed in two pieces. Alternatively, the pot-shaped element 5 can also be formed in one piece.
  • the support surfaces 12a, 12b can be provided, for example, by bending parts of the second region 7 accordingly.
  • FIG. 3 shows a top view of a detail of a torque transmission device according to an embodiment of the present invention
  • a pot-shaped element according to FIG. 2 is shown in FIG.
  • the pot-shaped element 5 according to FIG. 3 has two projections 13, each in opposite circumferential direction, on the radial outside.
  • the projections 13 prevent full-surface contact of the spring plate 4a with their radial outer side on the radial one Inside of the pot-shaped element 5, which allows a narrower design of the support surfaces from 12a, 12b.
  • Figure 4 shows steps of a method according to an embodiment of the present invention.
  • FIG. 4 shows steps of a method for producing a torque transmission device, in particular for the drive train of a motor vehicle.
  • the procedure consists of the following steps
  • a first step S1 an input element is provided.
  • step S2 an output element is provided.
  • an energy storage device is provided.
  • a torque limiting device is provided, the torque limiting device being designed to transmit a torque below a torque value and to transmit at least partially no torque above the torque value.
  • step S5 the input element and output element are arranged relative to one another via the energy storage device and rotatable about a common axis of rotation.
  • the torque limiting device is arranged between the input element and the output element.
  • the torque limiting device is connected to the energy storage device via a non-positive and / or positive connection and to the input element via a frictional connection.

Landscapes

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

Abstract

L'invention concerne un dispositif de transmission de couple, en particulier pour un groupe motopropulseur d'un véhicule automobile, comprenant un élément d'entrée et un élément de sortie, lesquels peuvent tourner l'un par rapport à l'autre à travers d'un dispositif de stockage d'énergie et autour d'un axe commun et un dispositif de limitation de couple étant disposé entre l'élément d'entrée et l'élément de sortie, le dispositif de limitation de couple étant conçu pour, en dessous d'une valeur de couple, transmettre un couple entre l'élément d'entrée et l'élément de sortie et, au dessus de la valeur de couple, ne transmettre au moins partiellement, de préférence complètement, aucun couple, caractérisé en ce que le dispositif de limitation de couple est connecté au dispositif de stockage d'énergie à travers une connexion par conjugaison de forces et/ou par complémentarité de forme et à l'élément d'entrée à travers une connexion par friction.
PCT/EP2020/065146 2019-06-06 2020-06-02 Dispositif de transmission de couple WO2020245086A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20731811.4A EP3980665A1 (fr) 2019-06-06 2020-06-02 Dispositif de transmission de couple
CN202080040459.8A CN113906239A (zh) 2019-06-06 2020-06-02 转矩传递装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019208247.5A DE102019208247A1 (de) 2019-06-06 2019-06-06 Drehmomentübertragungseinrichtung
DE102019208247.5 2019-06-06

Publications (1)

Publication Number Publication Date
WO2020245086A1 true WO2020245086A1 (fr) 2020-12-10

Family

ID=71078494

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/065146 WO2020245086A1 (fr) 2019-06-06 2020-06-02 Dispositif de transmission de couple

Country Status (4)

Country Link
EP (1) EP3980665A1 (fr)
CN (1) CN113906239A (fr)
DE (1) DE102019208247A1 (fr)
WO (1) WO2020245086A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4040605A1 (de) * 1989-12-21 1991-06-27 Luk Lamellen & Kupplungsbau Vorrichtung zum daempfen von torsionsschwingungen
DE10223815A1 (de) * 2001-05-28 2003-06-26 Valeo Kopplungsvorrichtung zur Kopplung eines Kraftfahrzeugmotors mit einem Getriebe
EP1939486A1 (fr) * 2006-12-27 2008-07-02 LuK Lamellen und Kupplungsbau Beteiligungs KG Dispositif destiné à amortir les oscillations de torsion
DE102012211990A1 (de) 2011-08-08 2013-02-14 Schaeffler Technologies AG & Co. KG Drehmomentübertragungseinrichtung
DE102012208268A1 (de) * 2012-05-16 2013-11-21 Schaeffler Technologies AG & Co. KG Zweimassenschwungrad

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8504809U1 (de) * 1985-02-21 1985-05-30 Fichtel & Sachs Ag, 8720 Schweinfurt Geteiltes Schwungrad mit Rutschkupplung
JP2002181085A (ja) * 2000-12-14 2002-06-26 Nsk Warner Kk トルクリミッター付ダンパー組立体
JP4882642B2 (ja) * 2006-09-29 2012-02-22 アイシン精機株式会社 トルク変動吸収装置
DE112007002354A5 (de) * 2006-10-26 2009-07-09 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Torsionsschwingungsdämpfer
DE102008005140A1 (de) * 2007-02-08 2008-08-14 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Torsionsschwingungsdämpfer
EP2829767B1 (fr) * 2012-03-22 2018-01-03 Toyota Jidosha Kabushiki Kaisha Dispositif d'amortissement de vibrations de torsion
DE112013006043A5 (de) * 2012-12-17 2015-09-17 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
CN107701656A (zh) * 2016-08-09 2018-02-16 舍弗勒技术股份两合公司 扭振减振器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4040605A1 (de) * 1989-12-21 1991-06-27 Luk Lamellen & Kupplungsbau Vorrichtung zum daempfen von torsionsschwingungen
DE10223815A1 (de) * 2001-05-28 2003-06-26 Valeo Kopplungsvorrichtung zur Kopplung eines Kraftfahrzeugmotors mit einem Getriebe
EP1939486A1 (fr) * 2006-12-27 2008-07-02 LuK Lamellen und Kupplungsbau Beteiligungs KG Dispositif destiné à amortir les oscillations de torsion
DE102012211990A1 (de) 2011-08-08 2013-02-14 Schaeffler Technologies AG & Co. KG Drehmomentübertragungseinrichtung
DE102012208268A1 (de) * 2012-05-16 2013-11-21 Schaeffler Technologies AG & Co. KG Zweimassenschwungrad

Also Published As

Publication number Publication date
DE102019208247A1 (de) 2020-12-10
CN113906239A (zh) 2022-01-07
EP3980665A1 (fr) 2022-04-13

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