DE2542024A1 - ELECTROMECHANICAL ACTUATOR - Google Patents

Description

VEB Knitting Machine Construction Karl-LIarx-Stadt 901 Karl-Marx-Stadt Annaberger Str. 73 PSF 104-7

ßlektroneο tonic Stell'lieu

Dis- 'rflndung affects an electrode? cha η ic actuator, Y / elchcß ihfilii'pi'0 olectrostrictive, piezoelectric or magnetostrictive; ';; Bending learning includes, directly or indirectly are connected to iViittslij for the decrease in weight ».

To j-rr ^ tUKUijo; von Stellbov / egunrjen be-v »*. Displacements in the Grü-Ecücramo ^ - / on einigevyj πι ^ s about 1 mm i ^ t it known _? Bjuoj.cr.iöute :: - u Yer \ vendcn _; which on the basis of the pieaoelvtriiii. elektror>tyj.ktiYf;? i or raagnetostrilctiven Kfxekter; · work »Example siVeisc one has a pin procedure for Ausv.'Ublen 'before; Strickn-i-äüln or Striokhi.lfom Mittel & cmY: Q oo; n YOv.v, tf) Viiijdtr · Cru'idprii ^ ip ^ eöchriffin, where near the needles or jtlij.fömteln at least one organ is nn ^ eordered, v / elchf 'i; aiiG an in.laterir.l, which under the '.7ir3: ung an ε eJ.ektrit? ch'ör) current or a raagnetibohen field, changes its dimensions with the traditional means, in particular with The above-mentioned procedure for selecting knitting needles, achievable Btellwsgö and A2? work frenuen £ sn v / erden boim concern raittleror manpower to rather low Y / ferfce, so that an interference for z. B »a modern Grnßrv.ridii-trickrj-jrjouinc cannot be done

The purpose of the cage is that components which _{work on the electrostrictive?} Piezoelectric or magnetostrictive principle can be used more universally

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609816/0698

and for use in high performance electromechanical ^ Set up actuators β

The object of the invention is to provide an electromechanical To create actuator, the "larger at medium actuating forces Travel ranges and constant or even higher working frequencies allows.

The object of the invention is achieved in that the joggers are lined up next to each other in a receptacle in which the bending ε provided at the end of the hinge opposite the means aur iiev / egungsabnahne learn in accordance with the means for the motion abnahne line abov / ends against a stop and on the other side freely movable in Ij vena the other bending elements each at a distance from the bending at the end of the row at the stop and separated from each other and arranged transversely to the latter, where there is an intermediate part in the distances between the individual bending elements, which is in contact with one bending element on both sides.

The electro-mechanical actuator according to the invention creates the possibility of greater travel ranges and at least constant bE> \ v. can even achieve higher frequencies with medium actuating forces compared to the state of the art

609816/0698

The invention is illustrated below using an exemplary embodiment explained. In the accompanying drawing show:

Fig. 1: a bending element with a connected plunger to decrease movement,

Fig. 2: the actuator according to the invention, comprising several bending elements.

According to FIG. 1, a bending element, in particular a bending disk 2, is made of electrostrictive or piesoelektriDohim or magnetostrictive oil aged in a receptacle 1. When an electrical voltage is applied to the bending pad 2 the same bulges to the right depending on ηεο'α polarity of the voltage or to the left and moves the .den arranged on the flexural disk 2 .Pushrod 4, which can slide in travel 3. To increase of the actuating forces is located between the sr-white layers of the Flexural washers 2 preferably each have an elastic insert, '/ parenthin can each flexural disc 2 with a passive support plate; for example consisting of steel, be connected. As shown in FIG. 2, several bending sheets 2 are made of electrostrictive or piezoelectric or magnetostrictive material arranged side by side in a receptacle 6 At the end of the table the T'iege disc 2 opposite the means Bending washer provided on the bevel abncYiuTie (ram 4) is facing away from the plunger 4 at a stop 7 and is freely movable to the other side. The remaining bending washers 2 are in a distance to the one at the end

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of the row on the stop 7 abutting flexural disc 2 in the receptacle 6 and are also held at a distance from one another. In addition, the latter flexible washers 2 are movable in the transverse direction with respect to the flexible washer 2 resting against the stop 7. In the distances between the individual bending washers 2, the receptacle 6 was each with an intermediate part. 5 equipped, which is in contact with a bending disk 2 on both sides. The intermediate part 5 is in contact on the left side in the center and on the right side on the edge with a 3iegcooheibe-2 each and, like every Biegftsoheibf! 2 circular cross-section. As a result, the erhallen Biegeschsiben 2 shows an advantageous object (ion intermediate parts 5, and the whole system of elektrodechunißchen actuator is characterized in particular deslu-lb by a good mechanical stability "

If you now apply an electrical one to all bending straps 2 at the same time A uniform polarity is formed, so arch All of these change after one direction, depending on the polarity of the applied voltage. Suppose the Flexural washers 2 of Fig. 2 of the electromechanical actuator bulge to the right, that is, to the side on which if the plunger 4 is located, each flexural disk 2 pushes the intermediate part 5 in contact with it to the right in front of you. The translation of the intermediate part 5, which is closest to the bending disk 2 resting on afm stop 7 stands, corresponds to the V / eg amount of the V / Ölbuijg or deflection of said bending disk 2 »Since each bending disk is 2 in the same way auelenkfc, is always the one in the direction of the plunger 4 arranged next bending plate 2 from the front

609816/06 9 8

The forward bending disc 2 mediates a single deflection by displacement and the deflection of said bending disc 2 is added to it, so that the deflection is doubled. If one assigns ώ flexural disks 2, so that the travel of the plunger or Gesarntauslenkung A- is a V / EC, which the RJ-iachen Einzelauslenkung corresponds to a flexural disk 2, AES is far from a planar shape of the voltage present at Anschlp.g 7 flexural disk 2 assumed, whereby this Zufj'Ui'ja is present when no voltage has been applied. V / ird the. iiw ^ .Lj ^. ^ i.ituatiori chosen so that the bending '- ;. «disc 2 ; nittel;.; corresponding to a tension; foJ.; 'rit;". t ei υ-: Linkfif-vi ^ lenla'ng executes, so he / calibrates a GerrTu.-ucllv / cg -of?. n. Uni die i ⁽ 'ii; ^ eltcilc dea elelitro-LK-chiäiiiecihrr · S11.-1IgHe-des to keep in touch, j.st dai; Stellgl'i-vd mit eir ^ r nicht dörstcllttn üruoki'ecif ⁵ :? au ;. -;.; i.-st ^ ttet.dio join zv; if; oucn of the guide ~ 1> and the adjacent c ^ cui-ioc 2.

609 8.16 / 0698

Claims (3)

Pa t e η t a ηg orüohe: 1.jElektromohanisches actuator, which comprises several electrostrictive, piezoelectric or magnetoütriktive bending elements, which are directly or indirectly connected to means ζλχτ movement decrease, characterized in that the. Lüegoelemente or bending washers (?.) ncbem-'nandergcreiht iu a receptacle (6) in which there & at the end of the row opposite to the means of Bev / e ^ ungsabnahriie or ram (4) provided bending element (2) in the direction of the plunger (4) rests against a stop (7) and is freely movable to the other side ₅ and the remaining ivit ^ eelöiTx-nie (2) each at a distance ? .v>. the most: inoe the series aux Ai ^ Jor-lar liei-flexural element (2) and ^2ueini: noei: η.θοΙοικι (?); ^: . · ₀ ΓΐΓΡίοη !: f-cvrlc nucrbe \ ve ;; lich au de: u the latter an ^ eoycMi-rk sinC ·. v / oie.! : 1 u Λ on Abs ti. · Ii.de η zvrisohen the individual BiegetlcrnGntcn (2); jev; ei] .G a ^ vischsnteil (5) is located, which is in contact on both sides with one oo bending oil (2) stands. 2. Elektroraeohanisches actuator according to claim I, dacluj.-oTi - that the intermediate part (5) on the one hand xe; vtrische Has contact with a bending element (2) and on the other hand rests on the edge of a bending element (2). 3. Electromechanical actuator according to claims 1 and 2- _} characterized in that the bending element (2) and intermediate part (5) are of circular cross-section. 609816/0698