WO2019007457A1 - Train de rouleaux satellites et procédé pour faire fonctionner un train de rouleaux satellites - Google Patents

Train de rouleaux satellites et procédé pour faire fonctionner un train de rouleaux satellites Download PDF

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Publication number
WO2019007457A1
WO2019007457A1 PCT/DE2018/100550 DE2018100550W WO2019007457A1 WO 2019007457 A1 WO2019007457 A1 WO 2019007457A1 DE 2018100550 W DE2018100550 W DE 2018100550W WO 2019007457 A1 WO2019007457 A1 WO 2019007457A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
planetenwälzgetriebe
gear
spring
ramp
Prior art date
Application number
PCT/DE2018/100550
Other languages
German (de)
English (en)
Inventor
Benjamin Wübbolt-Gorbatenko
Daniel Faber
Alexander Hausmann
Dietmar Rudy
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 WO2019007457A1 publication Critical patent/WO2019007457A1/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
    • 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
    • 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
    • F16H25/2003—Screw mechanisms with arrangements for taking up backlash
    • F16H25/2006—Screw mechanisms with arrangements for taking up backlash with more than one nut or with nuts consisting of more than one bearing part
    • 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
    • F16H25/2266—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers arranged substantially in parallel to the screw shaft axis
    • 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
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2096—Arrangements for driving the actuator using endless flexible members

Definitions

  • the invention relates to a Planetenxxlzgetriebe according to the preamble of claim 1. Furthermore, the invention relates to a method for operating a Planetenskylzgetriebes.
  • Planetenskylzgetriebe is synonymous with the term planetary roller used.
  • a generic Planetenskylzgetriebe is known for example from DE 10 2010 01 1 820 A1.
  • This planetary roller screw drive comprises a nut which has two mutually axially movable nut parts.
  • a biasing device of the known Planetenskylzgetriebes comprises a spring element which exerts an axial force acting on one of the female parts and in this case on a coupling part which is fixedly connected to a sleeve surrounding the female parts, supported.
  • the invention has for its object to further develop a Planetenskylzgewindetrieb over the cited prior art, with particular wide applications of Plantenskylzgewinderioss should be given.
  • the planetary roller screw drive comprises a multi-part nut, which surrounds a threaded spindle, wherein between the nut and the threaded spindle several planets roll, which are respectively guided with end portions in the nut and with a central portion on the threaded spindle.
  • the end and middle sections of the Planten represent profiles, which - in contrast to the profiling of the threaded spindle - describe no thread.
  • the nut has a biasing device which acts on the planets by biasing different elements of the nut against each other.
  • the pretensioning device is adjustable during operation of the planetary gear transmission.
  • a ramp gear is particularly suitable, which is attributable to the biasing device.
  • Ramp gears are known in principle for example in vehicle brakes. By way of example, this connection is made to the documents DE 10 2016 221 189 A1 and
  • the ramp gear is designed to convert a rotation into a linear movement.
  • the ramp gear can work either without rolling elements or with rolling elements. In the latter case, balls are preferably provided as rolling elements. Alternatively come rolls or needles as rolling elements of the ramp gear into consideration.
  • the biasing device preferably additionally comprises a spring arrangement.
  • a spring arrangement may be, for example, a single disc spring or a package of disc springs or a corrugated spring or a Wellfederp.
  • the spring assembly may be constructed of coil springs. Both in the use of disc springs as well as in the use of coil springs or other springs, the spring assembly is arranged in a preferred embodiment axially between the two mutually biased nut members of the mother of Planetenéelzgetriebes. Here, the spring assembly is annularly placed around the central portions of all the planets. In the radial direction of the nut, the spring arrangement preferably does not protrude beyond the nut elements.
  • the at least one spring of the spring arrangement is designed as an annular spring encircling the central axis of the planetary roller gear, then, for example, a stop ring is arranged axially between the two mutually braced nut elements which delimits the spring travel and surrounds the spring arrangement in an annular manner.
  • the function of the stop ring can be taken over directly by the nut elements.
  • a stop function limiting the travel of the nut elements is also advantageous in embodiments in which individual springs, in particular helical springs, are distributed on the circumference of the nut elements.
  • individual springs in particular helical springs
  • segment-like abutment regions of the nut elements are uniformly distributed on their circumference, in each case between two spring elements. This is equivalent to the fact that at least one of the nut elements has end-side recesses, in each of which at least one spring element is inserted.
  • the two nut elements can be designed mirror-symmetrically to each other. While the spring arrangement is preferably located between the two nut elements, a single ramp gear or a pair of ramp gears is preferably arranged on an outer end side or on both outer, mutually remote end faces of the nut elements. If the ramp gear is designed as a rolling-element ramp gear, then its rolling elements, in particular balls, preferably roll on an inwardly directed flange of a sleeve element, which encloses the two nut elements, the spring arrangement and possibly also the separate stop ring. Alternatively, the rolling elements of the two rows of rolling elements are supported only indirectly on the sleeve element.
  • the sleeve element can be produced, for example, by forming processes, by machining or by a combination of different production methods. The sleeve element is either formed as a one-piece component or composed of several parts.
  • the sleeve element is the rotatively driven element of the planetary roller screw drive.
  • the drive of the sleeve member can be done for example via a belt drive, wherein a pulley as integral part of the sleeve member may be formed. It is also possible to connect a pulley or sprocket with a separate sleeve member. A drive of the sleeve wheel via a gear transmission or an electric direct drive of the sleeve member is possible. In the latter case, the sleeve element is connected, for example, to a rotor of an electric motor designed as a hollow rotor.
  • the bias of the Planetenannalzgewindetriebs depends on the torque introduced into the mother. This can be used to the effect that without the introduction of a torque, the maximum bias is given, which is associated with a self-locking the Planetenannalzgewindetriebs.
  • the self-locking With increasing torque, which is introduced into the nut and causes a displacement of the threaded spindle, the self-locking is released, so that a smooth-running operation of Planetenannalzgewindetriebs is possible.
  • the planetary roller screw Upon completion of the drive of the nut, the planetary roller screw automatically returns to the state in which self-locking prevails. In this way, the planetary rolling gear can be stopped in any desired position, wherein forces introduced on the output side do not permit any adjustment of the approached position.
  • FIG. 1 shows a first exemplary embodiment of a planetary roller gear in a sectional representation
  • a Planetenskylzgetriebe 1 comprises a plurality of planets 2, which are also referred to as rolling elements and in a multi-part nut assembly 20, briefly referred to as mother roll off.
  • a multi-part nut assembly 20 briefly referred to as mother roll off.
  • the nut assembly 20 comprises two nut members 3, 4, which are also referred to without limitation of generality as nut halves.
  • the two nut elements 3, 4 are biased against each other by a spring arrangement 5.
  • the nut members 3, 4 are arranged together with the spring assembly 5 within a sleeve member 6, which is not shown in Figure 2.
  • Rolling elements 7, namely balls, which contact ribs 8, which are also referred to as flanges and are integral components of the sleeve element 6, can be seen on the end faces of the nut elements 3, 4.
  • the sleeve member 6 is a deformed manufactured component made of steel, which is integral in the embodiments. Alternatively, the sleeve member could be constructed of several individual parts.
  • the sleeve member 6 is firmly connected (Figure 1) or integrally formed ( Figure 3) with a pulley 12, which is generally referred to as a transmission element.
  • An associated drive belt, which is indicated exclusively in FIG. 3, is designated by 28.
  • the sleeve member 6 thus constitutes a rotating element of the planetary gear 1.
  • a threaded spindle 16 is linearly displaceable in a rotationally secured manner.
  • the central axis of the threaded spindle 16 and thus of the entire Planetenéelzgetriebes 1 is designated M.
  • the Planetenannalzgetriebe 1 is operable with variable bias and has for this purpose an adjustable during operation of the Planetenannalzgetriebes 1 biasing means 17.
  • the pretensioning device 17 comprises a ramp gear 13 which is constructed from two individual gears and converts a rotation between the nut halves 3, 4, on the one hand, and the sleeve element 6, on the other hand into an axial displacement between the nut halves 3, 4. Between the nut halves 3, 4, a gap 14 is formed, the width of which varies upon actuation of the biasing means 17.
  • a stop 15 limits the range of displacement between the nut halves 3, 4. In the case of Figure 1 and 2, the stop 15 is formed directly by the nut halves 3, 4. In contrast, in the case of Figure 3, a separate stop ring 26 is present, which is arranged between the nut halves 3, 4 and the minimum distance between the nut halves 3, 4 pretends.
  • the threaded spindle 16 has a thread 18, which is shown only incomplete in Figure 3.
  • Each planet 2 has a thickened central portion 19, which contacts the thread 18. Incidentally, the planet 2 are lifted from the threaded spindle 16.
  • a groove profile of the central portion 19 is designated, which is shaped to match the thread 18.
  • the circumferentially distributed planet 2 are slightly offset from each other in adaptation to the pitch of the thread 18 in the axial direction.
  • end portions 22 connect, which contact the nut halves 3, 4. In this case, groove profiles 23 of the end sections 22 engage in groove profiles 24 of the nut halves 3, 4.
  • the biasing device 17 influences forces that are transmitted between the groove profiles 23, 24.
  • the pretensioning device 17 comprises a plurality of helical springs 25, which are distributed uniformly around the circumference of the nut halves 3, 4 and aligned in the axial direction of the planetary roller gear 1.
  • each screw spring 25 is inserted between two end-side recesses of the nut halves 3, 4.
  • the spring assembly 5 is formed by two disc springs 27 which are arranged concentrically to the central axis M and surround the arrangement of all the planets 2 annular.
  • the raceways 10 of the ramp transmission 13 each have a vertex S. Are the rolling elements 7 at the apex S, the distance between the nut halves 3, 4 is maximum.
  • Each rotation between the nut halves 3, 4 on the one hand and the sleeve member 6 on the other hand leads to a reduction of the distance between the nut halves 3, 4th
  • the bias is so high that self-locking is given.
  • the condition given low bias of the planetary gear 1 is accompanied by a non-self-locking operation of the Planetenskylzgetriebes. This means that a rotation of the sleeve member 6 by advancing the threaded spindle 16 is effected.
  • each of these geometries is suitable both for the Planetendoilzgetrie- 1 according to Figures 1 and 2 and for the Planetenracelzgetriebe 1 of Figure 3.
  • the design according to FIG. 7 corresponds to the geometry of the ramp transmission 13 according to FIG. 2.
  • the track 10 also describes a double ramp in the case of FIG. This means that the nut halves 3, 4 are adjusted in a certain axial direction against each other as soon as the ramp gear 13 is adjusted out of the outlined in Figures 6, 7 center position out in any direction. Such a middle position is not given in the embodiment of Figure 8.
  • the bias of the Planetenannalzgetriebes 1 with the greatest possible distance between the nut halves 3, 4 maximum.
  • the distance between the nut halves 3, 4 can be reduced, wherein the spring assembly 5 is compressed and the bias between the nut halves 3, 4 is reduced.
  • the limited displacement range between the nut halves 3, 4 ensures that at least a slight bias of the Planetendoilzgetriebes 1 is maintained at all times.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

Un train de rouleaux satellites comprend un écrou (20) en plusieurs parties entourant une tige filetée (16). Plusieurs satellites (2) roulent entre l'écrou (20) et la tige filetée (16), lesquels satellites sont guidés chacun au moyen de parties d'extrémité (22) situées dans l'écrou (20) et d'une partie centrale (19) située sur la tige filetée (16), et l'écrou (20) comporte un moyen (17) de précontrainte des satellites (2) qui est réglable pendant le fonctionnement du train de rouleaux satellites.
PCT/DE2018/100550 2017-07-03 2018-06-11 Train de rouleaux satellites et procédé pour faire fonctionner un train de rouleaux satellites WO2019007457A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102017006224.2 2017-07-03
DE102017006224 2017-07-03
DE102017124386.0 2017-10-19
DE102017124386.0A DE102017124386B4 (de) 2017-07-03 2017-10-19 1Planetenwälzgetriebe und Verfahren zum Betrieb eines Planetenwälzgetriebes

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WO2019007457A1 true WO2019007457A1 (fr) 2019-01-10

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WO (1) WO2019007457A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019103384A1 (de) * 2019-02-12 2020-08-13 Schaeffler Technologies AG & Co. KG Planetenwälzgewindetrieb
DE102020132084A1 (de) 2020-12-03 2022-06-09 Schaeffler Technologies AG & Co. KG Spindeltrieb
CN115111294A (zh) * 2022-08-25 2022-09-27 杭州新剑机电传动股份有限公司 适用于线控制动系统的汽车用机电作动器
US20220373066A1 (en) * 2019-09-20 2022-11-24 Schaeffler Technologies AG & Co. KG Planetary roller screw drive
DE102021121736A1 (de) 2021-08-23 2023-02-23 Schaeffler Technologies AG & Co. KG Set aus Komponenten zum Zusammenbau von steigungstreuen Planetenwälzgetrieben

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019126875B4 (de) * 2019-10-07 2023-06-07 Schaeffler Technologies AG & Co. KG Planetenwälzgewindetrieb
DE102020103422A1 (de) 2020-02-11 2021-08-12 Schaeffler Technologies AG & Co. KG Planetenwälzgewindetrieb
DE102021132621A1 (de) 2021-12-10 2022-10-13 Schaeffler Technologies AG & Co. KG Sensoranordnung, Lenkungsaktuator und Verfahren zum Betrieb einer Sensoranordnung

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EP0603067A1 (fr) * 1992-12-17 1994-06-22 AEROSPATIALE Société Nationale Industrielle Mécanisme de vis à rouleaux, notamment pour engin spatial, et actuateur linéaire comportant un tel mécanisme
DE102007007885A1 (de) * 2007-02-14 2008-09-04 Fisw Steuerungstechnik Gmbh Erzeugung einer konstanten Vorspannung für einen Kugelrollspindelgewindetrieb mit Doppelmutter
DE102008008013B3 (de) 2008-02-07 2009-10-01 Wilhelm Narr Gmbh & Co. Kg Vorrichtung zur Umwandlung einer Drehbewegung in eine Axialbewegung
EP1945966B1 (fr) 2005-11-04 2010-01-13 Continental Teves AG & Co. oHG Frein de véhicule hydraulique avec frein d'immobilisation intégré à commande électromécanique
DE102010011820A1 (de) 2010-03-18 2011-09-22 Schaeffler Technologies Gmbh & Co. Kg Planetenwälzgewindetrieb
DE102016221189A1 (de) 2015-10-30 2017-05-04 Continental Teves Ag & Co. Ohg Radbremsaktuatormodul für eine elektrisch kombiniert betätigbare Kraftfahrzeugbremse
DE102015221556A1 (de) * 2015-11-04 2017-05-04 Schaeffler Technologies AG & Co. KG Planetenwälzgewindespindel (PWG) eines Aktors

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DE3204919C1 (de) * 1982-02-12 1983-07-07 Warner Electric Brake & Clutch Co., South Beloit, Ill. Kugelgewindetrieb

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603067A1 (fr) * 1992-12-17 1994-06-22 AEROSPATIALE Société Nationale Industrielle Mécanisme de vis à rouleaux, notamment pour engin spatial, et actuateur linéaire comportant un tel mécanisme
EP1945966B1 (fr) 2005-11-04 2010-01-13 Continental Teves AG & Co. oHG Frein de véhicule hydraulique avec frein d'immobilisation intégré à commande électromécanique
DE102007007885A1 (de) * 2007-02-14 2008-09-04 Fisw Steuerungstechnik Gmbh Erzeugung einer konstanten Vorspannung für einen Kugelrollspindelgewindetrieb mit Doppelmutter
DE102008008013B3 (de) 2008-02-07 2009-10-01 Wilhelm Narr Gmbh & Co. Kg Vorrichtung zur Umwandlung einer Drehbewegung in eine Axialbewegung
DE102010011820A1 (de) 2010-03-18 2011-09-22 Schaeffler Technologies Gmbh & Co. Kg Planetenwälzgewindetrieb
DE102016221189A1 (de) 2015-10-30 2017-05-04 Continental Teves Ag & Co. Ohg Radbremsaktuatormodul für eine elektrisch kombiniert betätigbare Kraftfahrzeugbremse
DE102015221556A1 (de) * 2015-11-04 2017-05-04 Schaeffler Technologies AG & Co. KG Planetenwälzgewindespindel (PWG) eines Aktors

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019103384A1 (de) * 2019-02-12 2020-08-13 Schaeffler Technologies AG & Co. KG Planetenwälzgewindetrieb
US20220373066A1 (en) * 2019-09-20 2022-11-24 Schaeffler Technologies AG & Co. KG Planetary roller screw drive
DE102020132084A1 (de) 2020-12-03 2022-06-09 Schaeffler Technologies AG & Co. KG Spindeltrieb
DE102021121736A1 (de) 2021-08-23 2023-02-23 Schaeffler Technologies AG & Co. KG Set aus Komponenten zum Zusammenbau von steigungstreuen Planetenwälzgetrieben
WO2023025343A1 (fr) 2021-08-23 2023-03-02 Schaeffler Technologies AG & Co. KG Ensemble de composants pour l'assemblage de transmissions planétaires à contact de roulement à niveau réel
DE102021121736B4 (de) 2021-08-23 2023-06-07 Schaeffler Technologies AG & Co. KG Set aus Komponenten zum Zusammenbau von steigungstreuen Planetenwälzgetrieben
CN115111294A (zh) * 2022-08-25 2022-09-27 杭州新剑机电传动股份有限公司 适用于线控制动系统的汽车用机电作动器
CN115111294B (zh) * 2022-08-25 2022-12-16 杭州新剑机电传动股份有限公司 适用于线控制动系统的汽车用机电作动器

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DE102017124386A1 (de) 2019-01-03

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