WO2017080548A1 - Actionneur - Google Patents

Actionneur Download PDF

Info

Publication number
WO2017080548A1
WO2017080548A1 PCT/DE2016/200484 DE2016200484W WO2017080548A1 WO 2017080548 A1 WO2017080548 A1 WO 2017080548A1 DE 2016200484 W DE2016200484 W DE 2016200484W WO 2017080548 A1 WO2017080548 A1 WO 2017080548A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
sleeve
rotor
friction element
actuator according
Prior art date
Application number
PCT/DE2016/200484
Other languages
German (de)
English (en)
Inventor
Lászlo Mán
Peter Greb
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
Priority to DE112016005194.8T priority Critical patent/DE112016005194A5/de
Priority to KR1020187013136A priority patent/KR102658355B1/ko
Priority to CN201680065857.9A priority patent/CN108351004A/zh
Publication of WO2017080548A1 publication Critical patent/WO2017080548A1/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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • 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
    • F16D28/00—Electrically-actuated clutches
    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/20—Freewheels or freewheel clutches with expandable or contractable clamping ring or band
    • F16D41/206—Freewheels or freewheel clutches with expandable or contractable clamping ring or band having axially adjacent coils, e.g. helical wrap-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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
    • F16H25/2252—Planetary rollers between nut and screw
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • 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
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
    • F16D2023/123—Clutch actuation by cams, ramps or ball-screw mechanisms

Definitions

  • the invention relates to an actuator and is used in particular for the actuation of a clutch of a vehicle application.
  • Actuators can convert the rotational movement of a component into an axial movement of another component.
  • the spindle, spindle nut and Planetenskylz analyses on profiling to transmit a rotational movement between the spindle and spindle nut, wherein one of the components - spindle or spindle nut - rotatably driven and the other component in a rotationally fixed arrangement along the longitudinal axis of the spindle by one of the set translation corresponding Axialweg is relocated.
  • the Planetenxxlz analyses two different profile sections which mesh on the one hand with the spindle and the other with the spindle nut
  • the one profile sections on the Planetenracelz analyses grooved and the other profile sections on the Planetenracelz analyses are generally grooved and depending on the embodiment, a complementary threaded portion the spindle or the spindle nut and according to the groove portion is arranged on the other component.
  • a PWG is known, in which the spindle has a thread and the spindle nut has grooves on which each planetary roller body roll by means of correspondingly complementarily formed profile sections.
  • the axially fixed and rotationally driven for example by an electric motor spindle is rotated relative to the rotatably arranged spindle nut, so that the spindle nut forcibly and by the frictional rolling of the plane Body is axially displaced in the grooves of the spindle nut. This results in the Axialweg the spindle nut proportional to the speed of the spindle movement.
  • HCA Hydrostatic clutch actuators
  • wrap springs for example for clutches.
  • an assembly with a friction device with at least two mutually rotatable components in particular for the actuation of a clutch of a vehicle, proposed in which between the relatively rotatable components at a relative rotation of the components, the efficiency / the friction influencing coil spring is arranged.
  • the helical spring forms a wrap spring, which is a simple wrap spring, a double wrap spring or a wrap spring Schling torsion spring can be.
  • the double-loop spring described here has two effective regions, which are arranged axially one behind the other.
  • the wrap spring is surrounded by a PWG sleeve and in each case has a friction surface to this sleeve and to the ring gear of the PWG. Due to the function of both ring gear and sleeve are made of steel. Due to the friction combination steel-steel for the friction points with high friction torque, even in combination with a lubricant, "scuffing" (cold welding) and thus increased wear and abrasion can be expected, which can lead to loss of function up to failure of the module.
  • the ring gear is not driven positively, but frictionally engaged by the planetary rollers.
  • this structure is not critical, since the ring gear is driven by a torque of the planet, which is greater than that of the friction element.
  • Load cases in which the drive torque of the planets on the ring gear is less than the braking torque of the friction element are problematic. In this case, no drive of the ring gear and the planet slip against the ring gear or - depending on the friction conditions - against the spindle.
  • the frictional forces acting are also small due to the low axial forces and only slightly deteriorate the overall efficiency of the PWG, but these load cases occur frequently or over a longer path / period, so local wear can occur, which distorts the Abrollgeometrie. In this case, it may happen that the planets do not roll even with respect to the friction element sufficiently large drive torques and thus the wear is significantly enhanced with higher forces and can lead to premature failure of the components.
  • the object of the invention is therefore to provide an actuator, in which an alternative positioning of the friction element is realized.
  • an actuator in particular for the actuation of a clutch of a vehicle, with a torque transmitting input element, preferably a rotor, a spindle or the like, with a torque or a linear force transmitting output element, such as a spindle or a Spindelmut- ter or the like and with a unit for converting a rotational movement into a linear movement, which is at least partially surrounded by a sleeve and wherein a friction element between a rotationally driven and a frame-fixed / fixed housing part of the actuator is arranged to influence the efficiency in a relative rotation of the different components, wherein inventions - According to the friction element is arranged outside the sleeve.
  • the component lying radially on the friction element preferably rotates.
  • the unit for converting a rotational movement into a linear movement is a planetary roller screw drive (PWG), wherein a profiling of a spindle is engaged by a plurality of planetary rollers meshing with a ring gear surrounding the planetary rollers, the planetary rollers being axially parallel to the longitudinal axis of the spindle and are freely rotatably mounted about their own longitudinal axis at both ends in a first and a second planetary roller carrier, and the planetary roller carriers are rotationally fixed to the sleeve in a ring surrounding the ring gear or integral with the sleeve, and wherein the sleeve and the planetary roller carriers supported therein axially fixed and rotatably connected to a rotor of a drive, and the sleeve is radially supported by a rotor bearing having an inner ring and an outer ring, wherein the spindle is rotatably supported relative to a housing and a stator of the drive and the locker
  • the friction element is disposed between the sleeve and the rotor and the housing or the stator.
  • Rotor and stator of an electric motor are usually encapsulated in plastic, which has proven to be particularly favorable for the friction partner.
  • Rotor and stator can be designed individually or both as friction surfaces for the friction element. Particularly advantageous is the use of the space axially offset from the rotor on the largest possible diameter to keep the frictional forces low.
  • the friction element is arranged between the planetary roller carrier and the outer ring of the rotor or PWG bearing.
  • the planetary roller carrier is preferably made of plastic.
  • the friction element is a wrap spring.
  • This preferably consists of a first and a second Schlingfeder Suite, preferably from exactly two Schlingfeder Suiteen.
  • the two Schlingfeder Suitee are designed for a high and a low frictional torque.
  • the Schlingfeder Suitee are preferably arranged radially offset from each other to reduce the axial space requirement.
  • the friction partner for the friction element is a plastic part.
  • the friction partner may be coated with plastic. The training or coating with plastic ensures less wear.
  • any other synchronized transmission such as a ball screw, a roller screw drive (RGT) or a movement thread can be used.
  • the invention provides an actuator in which an alternative positioning of the friction element is realized without disturbing the rolling conditions or injuring the given space.
  • Figure 5 inventive actuator with friction between the inner ring and outer ring of the rotor bearing.
  • the planetary rollers 2 extend axially parallel to the longitudinal axis A of the spindle 1 and are mounted at their two ends in each case in a first 4 and a second 5 planetary roller carrier.
  • the planetary roller carrier 4, 5 are rotatably supported in a surrounding the ring gear 3 sleeve 6 to this.
  • Sleeve 6 and planetary roller carrier 4, 5 are axially fixed and rotatably connected to a rotor, not shown, of a drive.
  • the spindle 1 Upon rotation of the rotor and supported in the sleeve 6 planetary roller carrier 4, 5, the spindle 1 performs an axial stroke.
  • a friction element in arranged a wrap 7 of the illustrated embodiment. It consists of a first 7.1 and a second 7.2 Schlingfeder Scheme, the first Schlingfeder Scheme 7.1 is connected to the ring gear 3 and the second Schlingfeder Scheme 7.2 with the second planetary roller carrier 5 in operative connection. While the second planetary roller carrier 5 is fixed to the frame, the ring gear 3 is rotationally driven. The rotary drive takes place frictionally from the planetary rollers 2.
  • FIGS. 2 to 5 show actuators according to the invention in different embodiments.
  • FIGS. 2 to 5 have in common that with the profiling of a spindle 1 a plurality of planetary rollers 2 are engaged, which mesh with a ring gear 3 encircling the planetary rollers 2.
  • the planetary rollers 2 extend axially parallel to the longitudinal axis A of the spindle 1 and are mounted at their two ends in each case in a first 4 and a second 5 planetary roller carrier.
  • the planetary roller carrier 4, 5 are rotatably supported in a surrounding the ring gear 3 sleeve 6 to this.
  • Sleeve 6 and planetary roller carrier 4, 5 are axially fixed and rotatably connected to a (shown in Figures 2 and 3) rotor R of a drive.
  • a friction element 7 is in each case formed, which is arranged in different embodiments at different positions.
  • the friction element is a wrap spring 7 consisting of a first 7.1 and a second 7.2 Schlingfeder Symposium
  • FIG. 2 shows an actuator according to the invention with the friction element 7 between stator S and rotor R of the electric motor.
  • the two Schlingfeder Symposium Seriese 7.1 and 7.2 are arranged radially offset from one another.
  • the first Schlingfeder Scheme 7.1 is the radially outer of the two and is in operative connection with the stator S as a friction partner.
  • the second Schlingfeder Scheme 7.2 is the radially inner of the two and is in operative connection with the rotor R as a friction partner.
  • the sleeve 6 of the PWG is supported radially via a rotor bearing 10.
  • FIG. 3 shows another embodiment of an actuator according to the invention with the friction element 7 between the stator S and rotor R of the electric motor.
  • the two Schlingfeder Suitee 7.1 and 7.2 are arranged radially offset from one another.
  • the first Schlingfeder Scheme 7.1 is the radially outer of the two and is in operative connection with the stator S as a friction partner.
  • the second Schlingfeder Scheme 7.2 is the radially inner of the two and is in operative connection with the rotor R as a friction partner.
  • the sleeve 6 of the PWG is supported radially via a rotor bearing 10.
  • the rotor bearing 10 is located on the axially opposite side of the PWG as the ring gear 3, while the friction element 7 is arranged in the axial direction on the same side of the PWG as the ring gear 3.
  • the rotor bearing 10 is mounted in an inner ring 10. 1 and an outer ring 10. 2, the inner ring 10. 1 being designed as part of the sleeve 6 in the illustrated embodiment.
  • the first 7.1 and the second 7.2 Schlingfeder Suite are arranged offset to each other both radially and axially.
  • the first Schlingfeder Rail 7.1 is the radially outer of the two and is in operative connection with the outer ring 10.2 of the rotor bearing 10 as a friction partner.
  • the second Schlingfeder Scheme 7.2 is the radially inner of the two and is in operative connection with the second planetary roller carrier 5 as a friction partner.
  • FIG. 5 shows an actuator according to the invention with the friction element 7 between the inner ring 10.1 and outer ring 0.2 of the rotor bearing 10.
  • the rotor bearing 10 is mounted in an inner ring 10.1 and an outer ring 10.2, wherein the inner ring 10.1 as Part of the sleeve 6 is formed.
  • the first 7.1 and the second 7.2 Schlingfeder Suite are arranged radially offset from each other.
  • the first Schlingfeder Rail 7.1 is the radially outer of the two and is in operative connection with the outer ring 10.2 of the rotor bearing 10 as a friction partner.
  • the second Schlingfeder Scheme 7.2 is the radially inner of the two and is in operative connection with the inner ring 10.1 of the rotor bearing 10 as a friction partner.

Abstract

L'invention concerne un actionneur, en particulier pour la commande d'un embrayage d'un véhicule, comprenant un élément d'entrée transmettant un couple, de préférence un rotor, une vis ou analogues, un élément de sortie transmettant un couple ou une force linéaire, comme p.ex. une vis ou un écrou ou analogues, et un ensemble destiné à convertir un mouvement rotatif en mouvement linéaire, entouré au moins partiellement d'une douille. Un élément de friction est disposé entre un élément entraîné en rotation et un élément monté de manière fixe sur le châssis ou le boîtier de l'actionneur, afin d'influencer l'efficacité lors d'une rotation relative des différents éléments. Selon l'invention l'élément de fiction est disposé à l'extérieur de la douille.
PCT/DE2016/200484 2015-11-13 2016-10-21 Actionneur WO2017080548A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112016005194.8T DE112016005194A5 (de) 2015-11-13 2016-10-21 Aktor
KR1020187013136A KR102658355B1 (ko) 2015-11-13 2016-10-21 액추에이터
CN201680065857.9A CN108351004A (zh) 2015-11-13 2016-10-21 执行器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015222430.9 2015-11-13
DE102015222430 2015-11-13

Publications (1)

Publication Number Publication Date
WO2017080548A1 true WO2017080548A1 (fr) 2017-05-18

Family

ID=57321047

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2016/200484 WO2017080548A1 (fr) 2015-11-13 2016-10-21 Actionneur

Country Status (4)

Country Link
KR (1) KR102658355B1 (fr)
CN (1) CN108351004A (fr)
DE (2) DE112016005194A5 (fr)
WO (1) WO2017080548A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3035465A1 (fr) * 2015-04-23 2016-10-28 Schaeffler Technologies Ag Actionneur comprenant une vis d'entrainement a roulement planetaire (vrp)
CN109099127A (zh) * 2017-06-21 2018-12-28 舍弗勒技术股份两合公司 执行装置以及其制造方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112018002772A5 (de) * 2017-05-31 2020-02-20 Schaeffler Technologies AG & Co. KG Betätigungsaktor mit abdichtendem Spaltrohr
DE102017213412B4 (de) * 2017-08-02 2019-04-04 Zf Friedrichshafen Ag Ölpumpenantriebsvorrichtung
DE102017125149B4 (de) * 2017-10-26 2019-09-19 Schaeffler Technologies AG & Co. KG Planetenwälzgewindetrieb, Aktuator und Ausrücksystem
DE102017130833B3 (de) 2017-12-21 2018-12-20 Schaeffler Technologies AG & Co. KG Formflüssige Verbindung zwischen einem Lagerinnenring und einer Hülse
DE102018123039A1 (de) * 2018-09-19 2020-03-19 Fte Automotive Gmbh Elektrischer Kupplungsaktuator mit einem einstückigen Gehäuse
KR102020737B1 (ko) 2018-10-24 2019-09-10 김진목 롤러스크류를 이용한 로터리 액츄에이터
DE102018127641A1 (de) * 2018-11-06 2020-05-07 Schaeffler Technologies AG & Co. KG Verfahren zur Einstellung einer vorgegebenen Position eines ein Reibfederelement umfassenden Kupplungsaktors
CN110131327B (zh) * 2019-05-29 2021-06-22 浙江吉利控股集团有限公司 一种汽车离合器的螺旋式致动器
NO20191024A1 (en) * 2019-08-26 2021-03-01 Techni Holding As Electric Actuator
DE102019125323A1 (de) * 2019-09-20 2021-03-25 Schaeffler Technologies AG & Co. KG Planetenwälzgewindetrieb

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0320621A1 (fr) 1987-11-17 1989-06-21 Deutsches Zentrum für Luft- und Raumfahrt e.V. Dispositif pour convertir un mouvement rotatif en un mouvement axial
WO2004001254A1 (fr) * 2002-06-21 2003-12-31 Compact Dynamics Gmbh Frein a disque electrique de vehicule automobile
FR3011301A1 (fr) * 2013-10-02 2015-04-03 Valeo Embrayages Actionneur pour systeme de transmission
WO2015048961A2 (fr) * 2013-10-01 2015-04-09 Schaeffler Technologies AG & Co. KG Ensemble comprenant un système de frottement
WO2015117612A2 (fr) * 2014-02-06 2015-08-13 Schaeffler Technologies AG & Co. KG Actionneur comprenant une vis à rouleaux satellites

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005325894A (ja) * 2004-05-13 2005-11-24 Nsk Ltd 遊星ローラネジ装置
DE112011102711A5 (de) * 2010-06-29 2013-05-29 Schaeffler Technologies AG & Co. KG Hydrostataktor
US8439177B2 (en) * 2010-08-25 2013-05-14 Inertia Dynamics Llc Wrap spring clutch coupling with quick release feature

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0320621A1 (fr) 1987-11-17 1989-06-21 Deutsches Zentrum für Luft- und Raumfahrt e.V. Dispositif pour convertir un mouvement rotatif en un mouvement axial
WO2004001254A1 (fr) * 2002-06-21 2003-12-31 Compact Dynamics Gmbh Frein a disque electrique de vehicule automobile
WO2015048961A2 (fr) * 2013-10-01 2015-04-09 Schaeffler Technologies AG & Co. KG Ensemble comprenant un système de frottement
FR3011301A1 (fr) * 2013-10-02 2015-04-03 Valeo Embrayages Actionneur pour systeme de transmission
WO2015117612A2 (fr) * 2014-02-06 2015-08-13 Schaeffler Technologies AG & Co. KG Actionneur comprenant une vis à rouleaux satellites

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3035465A1 (fr) * 2015-04-23 2016-10-28 Schaeffler Technologies Ag Actionneur comprenant une vis d'entrainement a roulement planetaire (vrp)
CN109099127A (zh) * 2017-06-21 2018-12-28 舍弗勒技术股份两合公司 执行装置以及其制造方法
CN109099127B (zh) * 2017-06-21 2023-08-25 舍弗勒技术股份两合公司 执行装置以及其制造方法

Also Published As

Publication number Publication date
DE102016222149A1 (de) 2017-05-18
DE112016005194A5 (de) 2018-08-02
CN108351004A (zh) 2018-07-31
KR102658355B1 (ko) 2024-04-18
KR20180083325A (ko) 2018-07-20

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