DE19543131A1 - Regulating distance booster for piezoelectric and magnetostrictive power converters - Google Patents
Regulating distance booster for piezoelectric and magnetostrictive power convertersInfo
- Publication number
- DE19543131A1 DE19543131A1 DE1995143131 DE19543131A DE19543131A1 DE 19543131 A1 DE19543131 A1 DE 19543131A1 DE 1995143131 DE1995143131 DE 1995143131 DE 19543131 A DE19543131 A DE 19543131A DE 19543131 A1 DE19543131 A1 DE 19543131A1
- Authority
- DE
- Germany
- Prior art keywords
- chamber
- bellows
- travel
- piezoelectric
- membrane
- 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- Withdrawn
Links
- 230000001105 regulatory effect Effects 0.000 title 1
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 238000009877 rendering Methods 0.000 abstract 1
- 238000005476 soldering Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
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
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/04—Constructional details
- H02N2/043—Mechanical transmission means, e.g. for stroke amplification
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
Die Erfindung betrifft eine Einheit zur Übersetzung von Wegen piezoelektrischer oder ma gnetostriktiver Energiewandler als Stellglieder zur aktiven Schwingungsdämpfung, zum Ein satz in Hydraulikventilen, als Motorlager oder dergleichen.The invention relates to a unit for translating paths piezoelectric or ma gnetostrictive energy converter as actuators for active vibration damping, for on set in hydraulic valves, as engine mounts or the like.
Stellwegübersetzer, die mit einem hydraulischen Medium arbeiten, sind bereits bekannt (USP; Nr. 4,803,393) oder (EP; Nr. 0 477 400 A1). Diese bekannten hydraulischen Systeme wei sen eine Hydraulikkammer auf, die über O-Ringe abgedichtet wird. Sie erfordern einen Vor ratsbehälter zur Kompensation von auftretenden Ölverlusten.Travel range translators that work with a hydraulic medium are already known (USP; No. 4,803,393) or (EP; No. 0 477 400 A1). These known hydraulic systems white sen a hydraulic chamber, which is sealed by O-rings. They require a fore Storage tank to compensate for oil losses.
Der Erfindung liegt die Aufgabe zugrunde, einen Stellwegübersetzer der eingangs genannten Art zu entwickeln, der durch eine neue Art der Kammerabdichtung Ölverluste vermeidet, und so den Bauraum für zusätzliche Ölvorratsbehälter einspart.The invention is based on the object, a travel translator of the aforementioned To develop a type that avoids oil loss through a new type of chamber sealing, and this saves space for additional oil storage tanks.
Diese Aufgabe löst die Erfindung dadurch, daß sie statt O-Ringe Metallfaltenbälge 4 und Metallmembranen 2 einsetzt, die an den Dichtflächen 8 verklebt, verlötet oder verschweißt werden und somit eine leckagefreie Hydraulikkammer 3 garantieren. Diese Metallfaltenbälge und Membranen können so dimensioniert werden, daß der erforderliche Hub und Druck er reicht wird. Sie sind unter Heliumatmosphäre auf Dichtheit überprüft.The invention solves this problem by using metal bellows 4 and metal membranes 2 instead of O-rings, which are glued, soldered or welded to the sealing surfaces 8 and thus guarantee a leak-free hydraulic chamber 3 . These metal bellows and membranes can be dimensioned so that the required stroke and pressure is sufficient. They are checked for leaks in a helium atmosphere.
Nach dem hier beschriebenen Prinzip kann eine Wegrichtungsänderung zwischen Ein- (9a) und Ausgangssignal (9b) unter praktisch jedem Winkel erfolgen. Das dynamische Verhalten dieser Erfindung kann durch das übertragende Fluid, mit dem die Kammer gefüllt ist, auf den jeweiligen Anwendungsfall angepaßt werden.According to the principle described here, a change of direction between input ( 9 a) and output signal ( 9 b) can take place at practically any angle. The dynamic behavior of this invention can be adapted to the respective application by means of the transmitting fluid with which the chamber is filled.
Mögliche Realisierungen zeigen nachfolgende Beschreibungen anhand der Figuren. Dabei zeigt:Possible implementations are shown in the following descriptions based on the figures. It shows:
Fig. 1 Prinzipschaltbild eines hydraulischen Stellwegvergrößerers, wobei der Aus gangsweg (9b) in Richtung des eingeleiteten Weges (9a) ist. Fig. 1 schematic diagram of a hydraulic travel path enlarger, the output path ( 9 b) in the direction of the initiated path ( 9 a).
Fig. 2 Prinzipschaltbild eines hydraulischen Stellwegvergrößerers mit 90°-Wegum lenkung, der nach dem gleichen Prinzip wie der in Fig. 1 dargestellte Stell wegvergrößerer funktioniert. Fig. 2 Schematic diagram of a hydraulic actuation enlarger with 90 ° -Wegum steering, which works on the same principle as the actuating travel enlarger shown in Fig. 1.
Sehr wichtig ist es, wenn die Hydraulikkammer ohne Lufteinschluß mit Öl gefüllt ist, um eine maximale Steifigkeit zu erreichen. Die Kammer muß flexibel sein in Richtung des Ein- und Ausgangsweges und trotzdem volumenkonstant. Dies wird in der hier beschriebenen Erfin dung dadurch erreicht, daß die Kammer 3 auf Ein- und Ausgangsseite mit einer Metallmem brane 2 bzw. einem Metallfaltenbalg 4 verschlossen ist, wie in Fig. 1 dargestellt ist. Der elektromechanische Wandler 1 wirkt über eine Metallmembrane 2 auf eine eingeschlossene inkompressible Flüssigkeit 7. Die Flüssigkeit wird durch die Membrane 2 verdrängt und wird aufgrund ihrer Volumenkonstanz in den Metallfaltenbalg 4 hineingedrückt, wodurch dieser sich verlängert und den Abtriebskolben 5 anhebt. Über eine Schraubendruckfeder 6 kann das System so vorgespannt werden, daß nach Abschalten des Wandlers das System in den Aus gangszustand zurückgestellt wird.It is very important if the hydraulic chamber is filled with oil without air in order to achieve maximum rigidity. The chamber must be flexible in the direction of the entry and exit path and still constant in volume. This is achieved in the inven tion described here in that the chamber 3 on the input and output side with a Metallmem membrane 2 or a metal bellows 4 is closed, as shown in Fig. 1. The electromechanical transducer 1 acts on an enclosed incompressible liquid 7 via a metal membrane 2 . The liquid is displaced through the membrane 2 and, due to its constant volume, is pressed into the metal bellows 4 , thereby lengthening it and lifting the driven piston 5 . About a helical compression spring 6 , the system can be biased so that the system is reset to the initial state after switching off the converter.
Das Verhältnis aus der Querschnittsfläche der Metallmembrane 2 und der Querschnittsfläche des Metallfaltenbalgs 4 ergibt den Faktor, um den der Stellweg des elektromechanischen Wandlers 1 übersetzt wird.The ratio of the cross-sectional area of the metal diaphragm 2 and the cross-sectional area of the metal bellows 4 gives the factor by which the actuating path of the electromechanical transducer 1 is translated.
Bei den Ausführungsbeispielen in den Fig. 1 und 2, sind die Faltenbälge 4 jeweils in einem Führungsrohr 5 geführt, um ein Ausknicken der Faltenbälge zu verhindern. Die Führungsroh re 5 sind ihrerseits verschiebbar und bilden zugleich den Abtriebskolben 5.In the exemplary embodiments in FIGS . 1 and 2, the bellows 4 are each guided in a guide tube 5 in order to prevent the bellows from buckling. The guide tubes 5 are in turn displaceable and at the same time form the output piston 5 .
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995143131 DE19543131A1 (en) | 1995-11-18 | 1995-11-18 | Regulating distance booster for piezoelectric and magnetostrictive power converters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995143131 DE19543131A1 (en) | 1995-11-18 | 1995-11-18 | Regulating distance booster for piezoelectric and magnetostrictive power converters |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19543131A1 true DE19543131A1 (en) | 1996-10-02 |
Family
ID=7777861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1995143131 Withdrawn DE19543131A1 (en) | 1995-11-18 | 1995-11-18 | Regulating distance booster for piezoelectric and magnetostrictive power converters |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19543131A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19714292A1 (en) * | 1997-04-07 | 1998-10-15 | Siemens Ag | Device for transferring piezoelectric actuator deflection e.g. for motor vehicle fuel injection valve |
FR2765634A1 (en) * | 1997-07-01 | 1999-01-08 | Siemens Ag | COMPENSATING ELEMENT OF LENGTH VARIATIONS OF AN OBJECT UNDER THE EFFECT OF TEMPERATURE |
DE19936732A1 (en) * | 1999-08-06 | 2001-02-15 | Deutsch Zentr Luft & Raumfahrt | Bar shaped element of changeable length with an integrated piezoelectric actuator comprises at least one additional piezoelectric actuator, two bars arranged in series and displacement amplifier |
US6194812B1 (en) | 1996-09-30 | 2001-02-27 | Siemens Aktiengesellschaft | Controller with an actuator of controllable length and device for transmitting the deflection of an actuator |
WO2002084119A1 (en) * | 2001-04-10 | 2002-10-24 | Newlands Technology Limited | Actuator with hydraulics |
WO2012045819A1 (en) * | 2010-10-08 | 2012-04-12 | Epcos Ag | Arrangement of a piezo actuator and method for operating a piezo actuator |
CN103078552A (en) * | 2013-01-07 | 2013-05-01 | 大连理工大学 | Harmonic motor |
DE102011121423A1 (en) * | 2011-12-17 | 2013-06-20 | Audi Ag | Semi-active articulated support for selectively coupling or decoupling of stabilizer and wheel-guiding element of vehicle, has piezoelectric element which acts on push rod in coupled state by clamping element |
DE102014219604A1 (en) * | 2014-09-26 | 2016-03-31 | Siemens Aktiengesellschaft | Lifting system, electrical testing method, vibration damper and machine unit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4803393A (en) * | 1986-07-31 | 1989-02-07 | Toyota Jidosha Kabushiki Kaisha | Piezoelectric actuator |
EP0477400A1 (en) * | 1990-09-25 | 1992-04-01 | Siemens Aktiengesellschaft | Device for compensating the tolerance in the lift direction of the displacement transformer of a piezoelectric actuator |
-
1995
- 1995-11-18 DE DE1995143131 patent/DE19543131A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4803393A (en) * | 1986-07-31 | 1989-02-07 | Toyota Jidosha Kabushiki Kaisha | Piezoelectric actuator |
EP0477400A1 (en) * | 1990-09-25 | 1992-04-01 | Siemens Aktiengesellschaft | Device for compensating the tolerance in the lift direction of the displacement transformer of a piezoelectric actuator |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6194812B1 (en) | 1996-09-30 | 2001-02-27 | Siemens Aktiengesellschaft | Controller with an actuator of controllable length and device for transmitting the deflection of an actuator |
DE19714292A1 (en) * | 1997-04-07 | 1998-10-15 | Siemens Ag | Device for transferring piezoelectric actuator deflection e.g. for motor vehicle fuel injection valve |
DE19714292C2 (en) * | 1997-04-07 | 2000-10-26 | Siemens Ag | Device for transmitting a deflection of an actuator |
FR2765634A1 (en) * | 1997-07-01 | 1999-01-08 | Siemens Ag | COMPENSATING ELEMENT OF LENGTH VARIATIONS OF AN OBJECT UNDER THE EFFECT OF TEMPERATURE |
DE19936732A1 (en) * | 1999-08-06 | 2001-02-15 | Deutsch Zentr Luft & Raumfahrt | Bar shaped element of changeable length with an integrated piezoelectric actuator comprises at least one additional piezoelectric actuator, two bars arranged in series and displacement amplifier |
DE19936732C2 (en) * | 1999-08-06 | 2001-05-31 | Deutsch Zentr Luft & Raumfahrt | Length-variable rod-shaped element with piezo actuator |
WO2002084119A1 (en) * | 2001-04-10 | 2002-10-24 | Newlands Technology Limited | Actuator with hydraulics |
WO2012045819A1 (en) * | 2010-10-08 | 2012-04-12 | Epcos Ag | Arrangement of a piezo actuator and method for operating a piezo actuator |
DE102011121423A1 (en) * | 2011-12-17 | 2013-06-20 | Audi Ag | Semi-active articulated support for selectively coupling or decoupling of stabilizer and wheel-guiding element of vehicle, has piezoelectric element which acts on push rod in coupled state by clamping element |
DE102011121423B4 (en) * | 2011-12-17 | 2018-11-15 | Audi Ag | Semi-active pendulum support |
CN103078552A (en) * | 2013-01-07 | 2013-05-01 | 大连理工大学 | Harmonic motor |
CN103078552B (en) * | 2013-01-07 | 2014-12-24 | 大连理工大学 | Harmonic motor |
DE102014219604A1 (en) * | 2014-09-26 | 2016-03-31 | Siemens Aktiengesellschaft | Lifting system, electrical testing method, vibration damper and machine unit |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8130 | Withdrawal |