DE1989293U - MID-PRESSURE CONTROL MOTOR. - Google Patents

Description

526 * -2.5.

Hannover _f d «a 25 * 4» 1968

TfSSMMGHQUSS BRBMSBH ¹ - UHD APPARiLfSBAI?

Hydraulic actuator

The! Furnace looks at one

especially for drive circuits, with - two au. © ta® :? .ge »·" piston arranged in a common piston rod of different sizes, whereby the smaller piston is firmly connected to the bit of the piston rod and the larger piston is used as sole piston from * - ". "guided and relative to the piston rod and the fixed piston is axially displaceable between two stops and the four switching positions of the piston rod are predetermined by the stops and the stroke of the larger piston" are _β '. :

I'm a central pressure engine. of this type is by the 'German utility master 1 977 298 known * "'■ .-.". -.

The disadvantage of this 'execution is that ... that' with fall the-straight © iiigenonimen © position beifeehaltea remains

■ 'It is advisable in many cases. _f öaB in the event of failure, the means of a previously "fixed" switch position

The: -leuerimg its object _s -.- a • Dru oteitt.elmo tb-r au create the _$ a- upon failure of the 'iPruckmittels' .-. Coordinated division of the system -iniiomt "ad the: instead of three control lines -.- only two control lines required -

This © task becomes. '.' According to the. Cure thereby; solved *, that 'see the large piston and -the ZfllnaerrohT on the one hand and -.-. ".-. between the large piston ---- and iea.kleiaea Soltea on the other hand at least one é-derelsKeiit is givenQ-rdäetvist-' and · the ^{.'Kolben--:..} on the -.- Federelesaenten '· remote' pages 'beatifschlagbar, -e'inäy' over swei.Druck · "■ mittelanschiüsse ä@rar.t _s daßv.die piston".

rod animal switch positions eimiehmen'kann _e 'appropriately, the spring elements are Seha? aubenf © de: ra _e

In the drawing there is an example of an example of hiring schematically shown

Bs show the f ig 1 to _e. 4 the renewal flowering a te & notor in the tier, switch positions I ₈ O ₉ 1Ϊ possibly

The BruGioaitteliaotor. "Beeteht from a. Zyiinöerro & r. 1 eixieai- cylinder cover 2 and a cylinder bottom 3 '. The., _Yl 2y lind earth ekel 2 3 st a Kolbejasta & ge 4 a * bgödichtet aasJa'" ■ performed outside the there example with .a ZeiGiaaimg not set shift lever is _a ,

In dam in ä & m -Zyiiaderrohr '1 "befindliches !, remote rope ⁰ piston rod 4 is a flask with β ■ ^ e-iaeia, -aentrisohen ■". Aasate 7 .befestigtj in any way. which: is sealed in -a 'bore 8 of the 2-cylinder tube 1 - is axially displaceable. »--- -

In a further bore 9 i® cylinder tube ¹ - I is a column. 10 with a larger Durohme.ss.er with eiaea from the detached © a rope 5 of the piston rod 4 "sealed .- *; penetrated; * aentri = - see Änsats 11 swieohen awei stop 12 ₅ 13 '■: sealed axially displaceable". Arranged - ~ " ;

Bi © end faces of the centric attachments -7, .1I- and. a collar of the piston rod .4; 'form the limit; -' for the movement of the piston rod 4 with the fixed piston 6. gs-opposite the; larger piston 10 _ö

Sine from the "cylinder ^tube: I ₉ ; the -.'- cylinder.bottom; .3 and ä®m '; piston G formed kawäe ~ £ 15 is via an aascJilmi 16 with pressure medium via a. . '. We-geveatil. Can be charged o

■:. ■. - .- ■ ■ - 3 ■ - ■ -. ■. _:::: ■■ ■; - ■ λ ■ ■■.

νοϊΐ dem Zylisiderroliri I ₉ dem; Cylinder cover'2 mid de »piston 10 formed © Chamber 17 is '" can be acted upon via a JmsofaluB 18 with ■' ■. Pressure medium via another, also not shown, fo © * => ■ lovely directional valve »"

- Both directional valves - can of course also be taken out of a single suitable directional valve «,

Me piston rod 4 can continue to be called a "continuous .bekaimiter" Be designed piston rod and the JSyliaderboden 3 penetrate sealed *

A Federeleiaent 19 is supported on the one hand - against "a ■ Sylin · = ._ derrohr 1 arranged spring plate 20 ^ on the other hand Gegeä'dea Piston 10 off.

Another spring element 21 is arranged between the piston 6 and the piston 10, with the central Aiasätse 7 ₉ -ll ä®r both pistons 6 ₉ 10 as a centering land guide -for the-.spring element. 21 serve ...

The mode of action. The innovation according to the Dru'bkmi- ^ telmotor is as described below-eas

When the chambers are 15 _? 17 About the 'connections 16 ^ 18 vm. & - © in or- '. several not inclined Tteg © v @ ntile are pressureless ₉ - the pistons 6,10 take the position shown in Fig. 2 -position in & thus the piston rod 4 di © switching position: 0 @in _g where - eggs-. ' Piston IO is pressed by the spring element 19 to the right against. -The -stop! ^ And- the '^ ederetement "21 moves the piston" 6 with the'Eo'lbenstange 4 to the left until the B «aä 14 the piston« ".--- rod 4 rests on the piston 10» - ".. '"'"" ■ "■■ '.' ■■ '-.- ■

After 1 di strength © chamber 17 via the "■ terminal · 18 .with isittel applied _f as the piston is 10'gegen ■■ the force of the leather elements 19 to the left, to zvm stopper 12 moves and 'M!:

Here, the piston rod 4 and 6 ~ den'Kolben lELt _f ia their relative to Ia.ge. Piston 10 unchanged '"remain ₀

The piston rod 4 thus assumes the stop position I,

If, after Ug ₀ 3, pressure medium is also applied to the Kaismer 15 via the Inst, then with the position of the piston unchanged. 10 according to flg. 1 by the piston & with the piston rod 4 moved near to the right until the end faces of the centric lugs 7, 11 lie on top of each _other

The piston rod 4 nifflat di © "switch position 11 a _e

If near 4 only the camera 15 is acted upon by the pressure medium ₉ via the connection 16, the Kolbea 10 remains in the position shown in FIG moved to the right .. Ms again the frontal surfaces of the aentric attachments 7 »11 aufeiaaaderliegea _s:

The piston rod 4 now niramt the switching β division. -III eia _o -

If the pressure medium fails, the piston rod 4 _{moves from any switching position I 9} II or III into the stop position 0 according to FIG. S ₀

Claims (1)

P. & 25Ö526 * -2.5.§8 Pressure medium servomotor, in particular for <5 transmission positions, _see chap. with two KoX = * ben different SrSBe ₉ arranged on a common piston rod, the smaller piston being firmly connected to the piston rod and the. larger. piston than. Drag piston and executed with respect to the piston rod and the fixed piston wipe Kuei stops being axially displaceable and the four switch positions are given "by the piston rod.-These attacks and stroke of the larger piston _g gekeaazeicli'a.et characterized ■ daß'zwischen _$. the large piston (10) and the cylinder tube "(1). on the one hand and between the large piston (XO) and the small piston on the other hand, at least one leather element (19 $ 21) is arranged and "the piston (6 ₉ 10) on the" den. Spring elements ..: (19. _f 21) sides facing away from awei Druoteaiti; © laascii.XiisB @ (16,18) can be acted upon in such a way that the * piston rod assume four switching positions So.Druckmittelstellmotor according to claim I ₉ thereby gekesmaeichnetgdaB the ledsrelejaent © (19,21) screw element are «Λ ■ -