EP2027614A1 - Dispositif d'entraînement d'actionneur de corps fixe - Google Patents

Dispositif d'entraînement d'actionneur de corps fixe

Info

Publication number
EP2027614A1
EP2027614A1 EP07765364A EP07765364A EP2027614A1 EP 2027614 A1 EP2027614 A1 EP 2027614A1 EP 07765364 A EP07765364 A EP 07765364A EP 07765364 A EP07765364 A EP 07765364A EP 2027614 A1 EP2027614 A1 EP 2027614A1
Authority
EP
European Patent Office
Prior art keywords
solid
drive body
state
drive
actuators
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07765364A
Other languages
German (de)
English (en)
Inventor
Joachim Heinzl
Helmar Liess
Bernhard Gottlieb
Andreas Kappel
Tim Schwebel
Carsten Wallenhauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP2027614A1 publication Critical patent/EP2027614A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
    • H02N2/105—Cycloid or wobble motors; Harmonic traction motors

Definitions

  • the invention relates to a solid-state actuator ⁇ device with the Oberbegriffliehen features according to claim 1.
  • EP 1098429 B1 describes a solid-state actuator drive device in the manner of a rotary drive, in which a ring ⁇ shaped drive body 3 is actuated by means of electromechanical solid state actuators 1, 2, as shown in Fig. 5 Darge ⁇ is.
  • a shaft 4 passes through a Antriebs redesignöff ⁇ tion 5, wherein the shaft 4 frictionally applied to a wall of the circular drive body opening 5.
  • the solid state ⁇ raktoren 1, 2 enable the drive body 3 in a circumferential movement, which causes a rotation of the shaft 4.
  • the two solid-state actuators 1, 2 are based on a housing 6 as linear drive elements with their end facing away from the drive body 3. At the opposite end of the solid state actuators 1, 2 are mechanically rigidly connected with their end faces with the mechanically rigidly manufactured drive body 3.
  • the shaft 4 is axially rotatable about its axis of symmetry, which is perpendicular to the plane of the drawing, but slidably mounted in the housing 6 in any spatial direction.
  • the drive body 3 is excited by the solid state actuators 1, 2 to a circular displacement movement about the shaft 4, wherein the surface of the drive body opening 5 or circular bore on the cylindrical outer surface of the shaft 4th unwinds and generates a rotation of the shaft 4.
  • An attacking on the shaft 4 load torque is transmitted through the almost linear contact zone of the shaft 4 acting on the ring tangential to the shaft circumference force and through the mediation of the mechanically rigid drive body 3 on the solid state actuators 1, 2 at the ring distal end of the solid state actuators 1, 2 from only hinted sketched housing 6 added.
  • considerable torques must be imparted to the housing 6 by the solid-state actuators 1, 2.
  • PMA piezoelectric Multilayer Actuator / Piezoelectric multilayer actuators
  • PMA piezoelectric Multilayer Actuator / Piezoelectric multilayer actuators
  • Damaging bending stresses on the solid state actuators can be reduced by the solid state actuators are moved radially outward and thus the distance to the shaft axis is increased, the connection of the ring facing the end of the solid state with the actuator body by mechanically rigid connecting pieces hencege ⁇ is.
  • the torque load is calculated as a tangential force x lever arm length. Therefore, to halve the bending stress of the solid state actuators, their distance to the shaft axis would have to be approximately doubled. A demand for a compact design can not be fulfilled in this way.
  • Another solution for reducing the bending stresses is the use of n> 2 in the circumferential direction uniformly arranged solid state actuators.
  • the object of the invention is to propose a solid-state actuator drive device which requires less installation space and in which lower bending stresses act on its solid-state actuators.
  • the solid-state actuators should preferably be designed as solid-state linear actuators for use as linear actuators in PMA design.
  • a solid-state actuator drive device is accordingly ⁇ with a driving body, with a circular drive body opening in the actuator body, with a in the check- Drive shaft opening at least in leading shaft, wherein a shaft diameter of the shaft is smaller than an opening diameter of the drive body opening and wherein the shaft is frictional and / or positive fit against a wall fertilg the drive body opening in operation, and with at least two solid-state actuators which are controllable to expand and / or for contraction along its longitudinal axis, wherein the at least two solid-state actuators are coupled or attached to the drive body to drive this drive body in particular relative to a housing, so that by a sliding movement of the drive body, the shaft is set in rotation, and wherein the longitudinal axis of at least one of at least two solid-state actuators are aligned at an angle between 45 ° and 135 ° to a radial direction of the drive body opening on the drive body.
  • a solid-state actuator drive ⁇ is preferred apparatus in which the longitudinal axis of the solid-state actuator in a plane perpendicular to the shaft axis and / or the drive body opening axis of the drive body opening is ⁇ is arranged vertically.
  • any reactions in the large ⁇ SEN angular range of 45 ° to 135 ° advantageous to implement.
  • angular ranges with egg ⁇ nem angle of approximately 90 ° to the radial direction of the Antriebskör- per ⁇ réelle are thus particularly preferred.
  • a solid-state actuator drive device ⁇ at least one of a voltage in a radial direction to Antriebs redesignöff ⁇ circumferential outer wall of the drive body is arranged in the solid-state actuators on the outside is preferred. This allows a flat in the axial direction Bauwei ⁇ se.
  • a solid-state actuator drive ⁇ device one of the solid-state actuators is disposed adjacent to a side wall of the drive body at the at least is preferred, wherein the side wall is clamped in a pierced by the shaft or a parallel thereto drive body opening axis E- bene. This allows a construction which is particularly space-saving in the radial direction .
  • the two solid state actuators are arranged adjacent to one another on the same side wall on the drive body.
  • a solid-state actuator drive device ⁇ is preferred, wherein the second solid-state actuator is arranged to the adjacent the solid side wall opposite side wall adjacent.
  • a solid-state actuator drive ⁇ device to at least one of the two solid-state actuators, a running with to substantially parallel the longitudinal axis of the second solid-state actuator is arranged at a distance at which it is preferred, with each of parallel arranged solid-state actuators are arranged on opposite sides from view of the drive body opening ,
  • a solid-state actuator drive device ⁇ is coupled or wherein at least one of the solid-state actuators in the direction of its longitudinal axis for force and / or movement transmission to a projecting from the actuator body portion attached is preferred.
  • a solid-state actuator drive device ⁇ at least one of the solid-state actuators is disposed in a plane parallel to a wall of the drive body opening in which a longitudinal axis is preferred.
  • Such a solution allows to minimize the bending stress on the PMA development particularly advantageous TORQUE ⁇ ment strong rotation drive means of PMA.
  • An advantageously implementable arrangement of the solid-state actuators in the form of solid-state linear actuators with a line of action parallel to the drive body outer surfaces and at a large transverse distance to the shaft axis enables the realization of high-torque solid-state rotary actuators and improves the capability of torque detection.
  • the drive receives a compact radial design or a compact axial design due to the different arrangement options, especially under or over the drive body.
  • the preferred embodiments develop the principle of the increased transverse distance of the line of action of the linear actuators or solid-state actuators from a shaft axis of the Wave to reduce the bending stress of the solid state actuators on.
  • the transverse distance of the line of action of the individual solid-state actuator to the shaft axis or to the drive body opening axis of the drive body is maximized.
  • the line of action of the solid state actuators runs parallel to the adjacent drive body outer surfaces.
  • solid-state actuators in PMA design, embodiments with other types of solid-state actuators can be used, for example, magnetostrictive, electrostrictive or magnetically acting electro ⁇ solid-state actuators.
  • Fig. 5 components of an embodiment according to the prior art
  • Fig. 6 components of another embodiment according to the prior art.
  • the central component is a drive body 3, through which a drive body opening 5 leads.
  • a drive body 3 with a cuboid or square-shaped cross section perpendicular to the drive body opening axis z, which leads as a central axis through the drive body opening 5.
  • a shaft 4 at least into it.
  • the shaft 4 passes completely through the drive body opening 5, so that it can be mounted in the direction of its shaft axis z4 on both sides of the drive body 3.
  • the shaft axis z4 is guided in a Be ⁇ operating position parallel to the drive body opening axis z ⁇ , that is laterally offset to this.
  • the offset is chosen type that the shaft 4 with its outer circumference ⁇ form-fitting and / or frictionally applied to an inner side wall of the drive body opening.
  • the solid state actuators 1, 2, which serve to put the drive body 3 relative to a housing 6 in a plane x, y perpendicular to the drive body opening axis z in a translatori ⁇ cal movement, thereby the shaft 4 in a rotation about the shaft axis z4 is offset, are arranged laterally outside of the actual drive body 3 in the first embodiment.
  • a respective longitudinal axis 1 of the solid-state actuators 1, 2, along which the solid-state actuators 1, 2 expand or contract, is preferably arranged parallel to the profile of an adjacent drive-body outer wall 7.
  • the solid-state actuators 1, 2 are coupled or fastened in a first end-side section 9 on a section 9 protruding from the drive body 3, in order to force or move the front-side section 9 of the solid-state actuator 1, 2 onto the front side Drive ⁇ body 3 projecting section 8 to transfer. Such a movement is transmitted to the drive body 3 via the section 8 projecting from the drive body 3.
  • the housing 6 In the region of the front end portion 9 opposite end of the solid state actuators 1, 2 are connected to the housing 6, wherein in the drawing only schematically wall portions of such a housing 6 are outlined. Characterized that the solid-state actuators 1, 2 se at an angle of 90 ° vorzugswei- are arranged relative to each other on the actuator body 3 in ⁇ , it can be displaced in translational motion.
  • the longitudinal axis 1 of the solid-state actuators 1, 2 thus not in a radial direction r from the viewpoint of the drive body opening axis z or at an angle of less than 45 ° to the radial direction r, but in the ideal case vertically, ie under a Angle ⁇ of 90 ° to the radial direction r of the drive body opening axis z or possibly also at an angle between 45 ° and 135 ° to the radial direction r of the drive body opening axis z.
  • the drive body 3 does not necessarily have a square or cuboid cross-section.
  • the sections projecting from the drive body would, if appropriate, protrude correspondingly far in the lateral direction, in particular tangentially, from an annular outer circumferential surface of the drive body.
  • larger lever arm of the drive with an L-shaped arrangement of FIG. 5 can generate a larger torque.
  • such a solid-state actuator drive device is produced relative to arrangements. gene according to FIG. 5 or FIG. 6 more compact, ie space-saving, since it has smaller radial dimensions.
  • FIGS. 2 to 4 further particularly preferred embodiment are shown.
  • the same reference numerals refer to structurally and / or functionally identical components as described with reference to FIG. 1.
  • reference numerals refer to in relation to the discussion of FIG. 1, various configurations.
  • FIG. 2 shows a second embodiment of a solid-state actuator drive device with a drive body 3 °, on which four solid-state actuators 1, 2 are arranged.
  • two solid-state actuators 1, 1 or 2, 2 are arranged with their longitudinal axes 1 parallel to one another.
  • the solid-state actuators 1, 1 or 2, 2 which are oriented parallel to one another are arranged adjacent to the outer walls of the drive body 3 °.
  • the mutually parallel solid state actuators 1, 1 and 2, 2 are each arranged rectilinearly parallel to each other, so that a first end portion 9 ei ⁇ nes each of the parallel solid state actuators 1, 1 or 2, 2 in the same direction of the longitudinal axes. 1 has.
  • the actuator body 3 ° more projecting from ⁇ sections 8 in the extension of the outlined with reference to FIG. 1 projecting portions 8 reheatwand on the respective opposite Au 7 is arranged.
  • Fig. 3 shows a third and in the radial direction even more space-saving arrangement of a Festissonaktor- drive device.
  • the solid-state actuators 1, 2 are not arranged adjacent to a radially extending to the drive body opening 5 outer wall section 7 *, but arranged in the direction parallel to the drive body opening axis z side of the drive body 3 *.
  • Th other Wor ⁇ are the solid-state actuators 1, 2 in parallel and adjacent to a side wall 10 of the drive body 3 * arranged which x in a plane y normal to the Antriebs redesignöff- voltage axis z clamped and voltage axis by the Antriebs redesignöff- is pierced z.
  • FIG. 4 shows a fourth embodiment in which four solid-state actuators 1, 2 are likewise arranged adjacent to the two side walls 10 of the drive body, which are at a distance from each other in the axial direction of the drive body opening axis z.
  • two arranged with mutually perpendicular longitudinal axes 1 Festkörpe ⁇ are raktoren 1, 2 disposed on the one side, while the two further with likewise mutually perpendicular longitudinal axes 1 arranged solid state actuators 1, 2 are arranged on the opposite side of the drive body 3 ° *.
  • a drive pair of solid state actuators 1, 2 is arranged in each case.
  • Each of the solid-state actuators 1, 2 is assigned a projecting from the drive body portion 8 ° *, which are of the drive body 3 ° * protruding portions 8 ° * preferably only small dimensions and laterally from the side wall 10 of the drive body 3 ° * abste ⁇ hen ,
  • various other embodiments are possible in which, for example, all four solid state actuators 1, 1, 2, 2 are arranged on only one side of the drive body 3 ° *.

Abstract

L'invention concerne un dispositif d'entraînement d'actionneur de corps fixe comprenant un corps (3; 3°; 3*, 3°*) d'entraînement, une ouverture (5) de corps d'entraînement circulaire dans le corps d'entraînement, un arbre (4) qui pénètre au moins dans l'ouverture de corps d'entraînement. Selon l'invention, un diamètre de l'arbre (4) est inférieur à un diamètre de l'ouverture (5) de corps d'entraînement et l'arbre (4), en fonctionnement, repose par friction et/ou par engagement géométrique sur une paroi de l'ouverture (5) de corps d'entraînement. Le dispositif d'entraînement d'actionneur de corps fixe comprend également au moins deux actionneurs (1, 2) de corps fixe qui peuvent être commandés de manière à pouvoir s'allonger et/ou se contracter le long de leur axe (1) longitudinal, au moins deux actionneurs de corps fixe étant accouplés ou fixés au corps d'entraînement, pour entraîner celui-ci par rapport à un boîtier (6) de manière à ce qu'un mouvement coulissant du corps d'entraînement mette l'arbre (4) en rotation. Toujours selon l'invention, l'axe (1) longitudinal d'au moins l'un des deux actionneurs (1, 2) de corps fixe ou plus est orienté selon un angle (α) entre 44° et 135° par rapport à une direction (r) radiale de l'ouverture (5) de corps d'entraînement sur le corps (3; 3°; 3*, 3°*) d'entraînement.
EP07765364A 2006-06-13 2007-06-12 Dispositif d'entraînement d'actionneur de corps fixe Withdrawn EP2027614A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610027406 DE102006027406A1 (de) 2006-06-13 2006-06-13 Festkörperaktor-Antriebsvorrichtung
PCT/EP2007/055730 WO2007144330A1 (fr) 2006-06-13 2007-06-12 Dispositif d'entraînement d'actionneur de corps fixe

Publications (1)

Publication Number Publication Date
EP2027614A1 true EP2027614A1 (fr) 2009-02-25

Family

ID=38434731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07765364A Withdrawn EP2027614A1 (fr) 2006-06-13 2007-06-12 Dispositif d'entraînement d'actionneur de corps fixe

Country Status (3)

Country Link
EP (1) EP2027614A1 (fr)
DE (1) DE102006027406A1 (fr)
WO (1) WO2007144330A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007023200B4 (de) 2007-05-18 2011-07-28 Continental Automotive GmbH, 30165 Elektromechanischer Motor, insbesondere piezoelektrischer Mikroschrittantrieb
ITMI20081542A1 (it) * 2008-08-28 2010-02-28 Nicola Lussorio Cau Motore rotativo movimentato da attuatori piezoelettrici

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62152376A (ja) * 1985-12-23 1987-07-07 Dainippon Screen Mfg Co Ltd 圧電モ−タ
JPH03273871A (ja) * 1990-03-22 1991-12-05 Nec Corp 圧電モータ
US5079471A (en) * 1990-06-04 1992-01-07 Martin Marietta Corporation High torque harmonic traction motor
DE19952946A1 (de) * 1999-11-03 2001-05-17 Siemens Ag Elektromechanischer Motor
GB2369489B (en) * 2000-11-23 2004-03-10 Khaled Karrai Inertial rotation device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007144330A1 *

Also Published As

Publication number Publication date
WO2007144330A1 (fr) 2007-12-21
DE102006027406A1 (de) 2007-12-27

Similar Documents

Publication Publication Date Title
EP1098429B1 (fr) Moteur électromécanique
EP1414636B1 (fr) Entrainement lineaire electromecanique
EP2489081B1 (fr) Actionneur
DE4445642A1 (de) Piezoaktuatorisches Antriebs- bzw. Verstellelement
EP2564943A2 (fr) Générateur de vibrations pour produire une vibration de source ciblée
EP3844866B1 (fr) Actionneur ultrasonore
DE102007023217B4 (de) Elektromechanischer Motor, insbesondere piezoelektrischer Mikroschrittantrieb
EP1870313B1 (fr) Organe de transmission à superposition
WO2008034651A1 (fr) entraînement électromagnétique de réglage
WO2007131777A2 (fr) Réducteur, en particulier réducteur harmonic drive, et procédé pour faire fonctionner un réducteur
EP2027614A1 (fr) Dispositif d'entraînement d'actionneur de corps fixe
WO2008037602A1 (fr) Entraînement sans jeu pour un dispositif de freinage électromagnétique
EP2158622B1 (fr) Moteur électromécanique, notamment moteur pas à pas piézoélectrique
DE102006045293B4 (de) Festkörperaktor-Antriebsvorrichtung
DE102005022355A1 (de) Elektromechanischer Stellantrieb
EP2277210B1 (fr) Mécanisme d'entraînement en rotation
DE102012025376A1 (de) Schwingungserreger für lenkbare bodenverdichtungsvorrichtungen
DE3016126C2 (fr)
EP1984961B1 (fr) Dispositif d'entrainement inertiel rotatif
WO2006136546A1 (fr) Procede et dispositif pour ajuster un moteur a bague piezo-electrique
DE102006052414B4 (de) Mikromechanischer Aktor mit einer Welle
EP2041811A2 (fr) Servomoteur électromécanique
DE102012105077A1 (de) Verstellvorrichtung
DE202006012002U1 (de) Antrieb für einen Schalter in Elektroanlagen
EP2027610A1 (fr) Dispositif de commande pour dispositif d'entraînement d'actionneur de corps fixe, procédé d'entraînement d'un dispositif d'entraînement d'actionneur de corps fixe ou dispositif d'entraînement d'actionneur de corps fixe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20081119

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17Q First examination report despatched

Effective date: 20090812

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20100929