NO133082B - - Google Patents

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Publication number
NO133082B
NO133082B NO991/71A NO99171A NO133082B NO 133082 B NO133082 B NO 133082B NO 991/71 A NO991/71 A NO 991/71A NO 99171 A NO99171 A NO 99171A NO 133082 B NO133082 B NO 133082B
Authority
NO
Norway
Prior art keywords
slide
pressure
extensions
servo motor
hydraulic servo
Prior art date
Application number
NO991/71A
Other languages
Norwegian (no)
Other versions
NO133082C (en
Inventor
K O Mele
Original Assignee
Liaaen As A M
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 Liaaen As A M filed Critical Liaaen As A M
Priority to NO991/71A priority Critical patent/NO133082C/no
Priority to PL1972154023A priority patent/PL71096B1/pl
Priority to DE19722212149 priority patent/DE2212149A1/en
Priority to FR7208779A priority patent/FR2129647A5/fr
Priority to US00234562A priority patent/US3756278A/en
Priority to GB1199372A priority patent/GB1332617A/en
Priority to NL7203428A priority patent/NL7203428A/xx
Publication of NO133082B publication Critical patent/NO133082B/no
Publication of NO133082C publication Critical patent/NO133082C/no

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0716Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401Valve members; Fluid interconnections therefor
    • F15B13/0402Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/16Systems essentially having two or more interacting servomotors, e.g. multi-stage
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • Y10T137/86574Supply and exhaust
    • Y10T137/86582Pilot-actuated
    • Y10T137/86606Common to plural valve motor chambers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Servomotors (AREA)
  • Actuator (AREA)

Abstract

Styresleidanordning for hydraulisk servomotor.Steering slide device for hydraulic servomotor.

Description

Foreliggende oppfinnelse angår en styresleidanordning for hydraulisk servomotor, av den art hvor det i tilslutning til sleiden er anordnet en styring som skal sikre en nbyaktig innstilling og fastholdelse under anvendelse av en pilotsleid med liten forstillingskraft, idet det ved hver ende av sleiden er anordnet et trykk-kammer som er dannet av en sylinder som er utformet i sleidhuset og har droslet innlbp for et trykkmedium slik at dette trykk blir uavhengig av styresleidens arbeidstrykk. The present invention relates to a guide slide device for a hydraulic servo motor, of the kind where a control is arranged in connection with the slide which will ensure a precise setting and retention when using a pilot slide with a small presetting force, as a pressure is arranged at each end of the slide -chamber which is formed by a cylinder which is designed in the slide housing and has throttled inlbp for a pressure medium so that this pressure becomes independent of the guide slide's working pressure.

I kjente anordninger for dette formål, hvor déb anvendes et strålerbr eller en pilotsleid for etter valg å sette den ene eller det annet trykk-kammer under trykk, har det vært vanskelig å oppnå at styresleiden inntar og holder stabile mellomstillinger, eller pilotsleiden innebærer kompliserte og kostbare utforelser og er uten muligheter for nbdstyring. In known devices for this purpose, where a jet bridge or a pilot slide is used to selectively pressurize one or the other pressure chamber, it has been difficult to achieve that the control slide assumes and maintains stable intermediate positions, or the pilot slide involves complicated and costly implementations and are without opportunities for nbd management.

Det er således kjent en anordning av denne art hvor det enkelte A device of this kind is thus known where the individual

trykk-kammer står i regulerbar forbindelse med det fri gjennom pressure chamber is in adjustable connection with the free through

to sett radiale boringer i en sleideforlengelse og et rom som dannes av et fortynnet parti langs sleidens påvirkningsstang mellom de to sett hull, idet reguleringen av gjennomstrbmningen foregår ved at påvirkningsstangen bringes til i stbrre eller mindre grad å dekke det ene sett av de radiale boringer. Ved en slik anordning vil trykkene i trykk-kamrene, og dermed påvirkningen ikke kunne bli lineært avhengig av bevegelsen av stangen, idet dennes begrensningsflate danner en korde i forhold til hullet. two sets of radial bores in a slide extension and a space formed by a thinned part along the slide's influence rod between the two sets of holes, the regulation of the flow through is carried out by bringing the influence rod to a greater or lesser extent to cover one set of the radial bores. With such an arrangement, the pressures in the pressure chambers, and thus the impact, cannot be linearly dependent on the movement of the rod, as its limiting surface forms a chord in relation to the hole.

Foreliggende oppfinnelse angår en anordning av den art hvor det The present invention relates to a device of the kind where it

i hver ende av sleiden er anordnet et trykk-kammer for innstilling at each end of the slide there is a pressure chamber for setting

av sleiden når den skal påvirkes for stillingsregulering av en dobbeltvirkende hydraulisk servomotor, og hvor hvert trykk-kammer er dannet av en sylinder utformet mellom sleidhuset og en forlengelse av sleiden med mindre diameter enn denne og har droslet innlop for et trykkmedium, og de vanskeligheter som er nevnt ovenfor er, i henhold til oppfinnelsen overvunnet ved at aksiale boringer gjennom sleidforiengelsene munner ut i de fri endeflater på forlengelsene hvorigjennom forbindelsen mellom trykk-kamrene bg det fri vekselvis kan drosles regulerbart under styring av to kraver på en del som kan beveges utenfra i retningen for sledaksen. of the slide when it is to be influenced for position regulation by a double-acting hydraulic servo motor, and where each pressure chamber is formed by a cylinder formed between the slide housing and an extension of the slide with a smaller diameter than this and has a throttled inlet for a pressure medium, and the difficulties that is mentioned above is, according to the invention, overcome by the fact that axial bores through the slide joints open into the free end surfaces of the extensions through which the connection between the pressure chambers bg the free can alternately be throttled and regulated under the control of two collars on a part that can be moved from the outside in the direction of the sled axis.

I en slik anordning styres gjennomstrbmningen i de aksiale In such an arrangement, the flow through the axial ones is controlled

boringer ved endring av den lineære avstand mellom endeflatene og kravene, hvorved det blir mulig, på en enkel måte å oppnå bores by changing the linear distance between the end faces and the requirements, which makes it possible, in a simple way, to achieve

lineær styring, samtidig som den oljehinne som vil foreligge mellom endeflatene og kravene vil gi en god dempning ved hunting av sleiden. linear control, at the same time that the oil film that will be present between the end surfaces and the requirements will provide good damping when hunting the slide.

Trykket i trykk-kamrene, og dermed påvirkningen av sleiden i den ene eller annen retning kai således påvirkes utenfra, manuelt eller fortrinnsvis mekanisk i avhengighet av den påvirkning av styresleiden som bnskes, slik at styresleideh vil påvirkes i samme retning som bevegelsen av den bevegete del og dermed folge dennes bevegelser. The pressure in the pressure chambers, and thus the influence of the slide in one direction or another, is thus influenced from the outside, manually or preferably mechanically, depending on the influence of the guide slide that is required, so that the guide guide will be affected in the same direction as the movement of the moving part and thus follow his movements.

Den vedfbyde tegning viser skjematisk hvorledes anordningen i henhold til oppfinnelsen kan bringes til utfbrelse. The attached drawing schematically shows how the device according to the invention can be produced.

Fig. 1 viser et aksialt lengdesnitt gjennom en sleid- Fig. 1 shows an axial longitudinal section through a slide

anordning som ved hver ende er forsynt med en anordning i henhold til oppfinnelsen. device which is provided at each end with a device according to the invention.

På tegningen betegnet 1 et sylinderformet hus, hvor det er anordnet en sleid 2 som er innrettet til å beveges i sin akseretning i forhold til huset 1. Huset 1 er på vanlig måte utstyrt med et innlop 3 for et trykkmedium P, og har, sammen med sleiden 2 vanlige omkretskanaler for etter valg, og i avhengighet av stillingen av sleiden 2 å fore trykkmediet til de to sider A henhv. B av stemplet 4 i en hydraulisk servomotor 5, og til en sump gjennom utlbp R. In the drawing 1 denoted a cylindrical housing, where a slide 2 is arranged which is arranged to move in its axial direction in relation to the housing 1. The housing 1 is normally equipped with an inlet 3 for a pressure medium P, and has, together with the slide 2 common circumferential channels for, according to choice, and depending on the position of the slide 2, to feed the pressure medium to the two sides A resp. B of the piston 4 in a hydraulic servo motor 5, and to a sump through outlet R.

I hver ende er sleiden 2 utformet slik i forhold til huset 1 At each end, the slide 2 is designed like this in relation to the housing 1

at det i nbytralstillingen av sleiden 2 dannes to sylinderrom 6, mellom hver sin endeflate 7 på sleiden og den tilsvarende flate 8 på et bunnstykke i huset 1. Sleiden 2 er videre utformet med aksiale forlengelser 9 som er fort gjennom ende-stykkene 10 i huset 1, idet det gjennom forlengelsene 9 er fort langsgående boringer 11, hvorigjennom rommene 6 kan settes i forbindelse med den ytre luft. that in the neutral position of the slide 2, two cylinder spaces 6 are formed, between each end surface 7 of the slide and the corresponding surface 8 on a bottom piece in the housing 1. The slide 2 is further designed with axial extensions 9 which are fast through the end pieces 10 in the housing 1, in that through the extensions 9 there are fast longitudinal bores 11, through which the rooms 6 can be connected to the outside air.

Rommene 6 står på den annen side i varig forbindelse med trykk-kilden P gjennom hver sin drossel 13, slik at når sleiden står i den stilling, nbytralstillingen, som er vist på tegningen, vil rommene 6 stå under samme trykk. The chambers 6, on the other hand, are in permanent connection with the pressure source P through each throttle 13, so that when the slide is in the position, neutral position, which is shown in the drawing, the chambers 6 will be under the same pressure.

Fritt gjennom sleiden 2 er det fort en aksial stang 14 som ut for hver av endeflatene 12 av sleidforiengelsene 9 er forsynt med en krave 15 og som ved den ene ende er tilsluttet en bevegelsesmekanisme 16, således at stangen 14 med sin krave 15 kan beveges på bnsket måte i lengderetningen i forhold til sleiden. Freely through the slide 2 is an axial rod 14 which is provided with a collar 15 for each of the end surfaces 12 of the slide joints 9 and which is connected at one end to a movement mechanism 16, so that the rod 14 with its collar 15 can be moved on desired way in the longitudinal direction in relation to the slide.

I den utfbrelsesform for anordningen som er vist på tegningen munner de aksiale boringer 11 i forlengelsene 9 ut i endeflatene 12 på forlengelsene. Samtidig er diameteren for kravene 15 og avstanden mellom dem langs stangen 14 slik at når sleiden 2 står i den nbytrale midtstilling som er vist i figuren, er det en spalt mellom hver av endeflatene 12 og den tilsvarende krave 15, hvorigjennom rommene 6 står i fri forbindelse med ytre luft. In the embodiment of the device shown in the drawing, the axial bores 11 in the extensions 9 open into the end surfaces 12 of the extensions. At the same time, the diameter of the claims 15 and the distance between them along the rod 14 is such that when the slide 2 is in the neutral central position shown in the figure, there is a gap between each of the end surfaces 12 and the corresponding collar 15, through which the spaces 6 are free connection with outside air.

Hvis nå en bnsket regulering av den hydrauliske servomotor 4, 5 krever at sleiden 2 må beveges mot hbyre fra den nbytrale midtstilling som er vist, skjer denne regulering ved at stangen 14 skyves mot hdyre. Derved vil avstanden mellom den venstre krave 15 og den tilsvarende endeflate 12 på sleidforlengelsen 9 bli mindre og det fri gjennomldp fra boringene 11 bli inn-skrenket, således at trykket i det venstre rom 6 vil stige, slik at flaten 7 på sleiden utsettes for et bket trykk. Også endeflaten 12 vil påvirkes, om enn meget lite, under denne trykkbkning. Samtidig blir gjennomlbpet fra det hbyre rom 6 tilsvarende stbrre. På grunn av denne trykkforskjell mellom venstre og hbyre rom 6, vil sleiden 2 skyves mot hbyre og stemplet 4 i servomotoren 5 påvirkes tilsvarende. Når stemplet 4 har utfort den bnskede bevegelse bevirker mekanismen 16 - 17 på kjent måte at sleiden fores tilbake til midtstilling, og anordningen er klar for en ny regulering. If now a desired regulation of the hydraulic servo motor 4, 5 requires that the slide 2 must be moved to the right from the neutral central position shown, this regulation takes place by pushing the rod 14 to the right. Thereby, the distance between the left collar 15 and the corresponding end surface 12 of the slide extension 9 will be smaller and the free passage from the bores 11 will be reduced, so that the pressure in the left chamber 6 will rise, so that the surface 7 of the slide is exposed to a bket pressure. The end surface 12 will also be affected, albeit very little, during this pressure bending. At the same time, the passage from the right room 6 is correspondingly narrower. Because of this pressure difference between the left and right chamber 6, the slide 2 will be pushed to the right and the piston 4 in the servo motor 5 will be affected accordingly. When the piston 4 has carried out the desired movement, the mechanism 16 - 17 causes in a known manner that the slide is fed back to the middle position, and the device is ready for a new adjustment.

Den anordning som er vist og beskrevet vil være meget hurtig-virkende, idet et av kravene 15 på stangen 14 allerede i normal stengestilling ligger mot vedkommende endeflate 12 slik at det ikke går noen tid tapt for anordningen begynner å virke. The device shown and described will be very quick-acting, as one of the claims 15 on the rod 14 already in the normal closing position lies against the relevant end surface 12 so that no time is lost for the device to start working.

Claims (1)

Styresleidanordning for hydraulisk servomotor, hvor det ved hver ende av sleiden er anordnet et trykk-kammer for innstilling av sleiden når den skal påvirkes for stillingsregulering av en dobbeltvirkende hydraulisk servomotor, og hvor hvert trykk-kammer er dannet av en sylinder utformet mellom sleidhuset og en forlengelse av sleiden med mindre diameter enn denne og har droslet innlop for et trykkmedium,Guide slide device for hydraulic servo motor, where a pressure chamber is arranged at each end of the slide for setting the slide when it is to be influenced for position regulation by a double-acting hydraulic servo motor, and where each pressure chamber is formed by a cylinder formed between the slide housing and a extension of the slide with a smaller diameter than this and has a throttled inlet for a pressure medium, karakterisert ved at aksiale boringer (11) gjennom sleidforlengelsene (9) munner ut i de fri endeflater (12) på forlengelsene (9), hvorigjennom forbindelsen mellom trykk-kamrene (6) og det fri vekselvis kan drosles regulerbart under styring av to kraver (15) på en del (14) som kan beveges utenfra i retningen for sleidaksen.characterized in that axial bores (11) through the slide extensions (9) open into the free end surfaces (12) of the extensions (9), through which the connection between the pressure chambers (6) and the free can alternately be throttled in an adjustable manner under the control of two collars ( 15) on a part (14) which can be moved from the outside in the direction of the slide axis.
NO991/71A 1971-03-16 1971-03-16 NO133082C (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NO991/71A NO133082C (en) 1971-03-16 1971-03-16
PL1972154023A PL71096B1 (en) 1971-03-16 1972-03-13
DE19722212149 DE2212149A1 (en) 1971-03-16 1972-03-14 Control spool valve for a hydraulic servo motor
FR7208779A FR2129647A5 (en) 1971-03-16 1972-03-14
US00234562A US3756278A (en) 1971-03-16 1972-03-14 Control slide valve for a hydraulic servo motor
GB1199372A GB1332617A (en) 1971-03-16 1972-03-15 Control slide valve for a hydraulic servo motor
NL7203428A NL7203428A (en) 1971-03-16 1972-03-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO991/71A NO133082C (en) 1971-03-16 1971-03-16

Publications (2)

Publication Number Publication Date
NO133082B true NO133082B (en) 1975-11-24
NO133082C NO133082C (en) 1976-03-03

Family

ID=19877900

Family Applications (1)

Application Number Title Priority Date Filing Date
NO991/71A NO133082C (en) 1971-03-16 1971-03-16

Country Status (7)

Country Link
US (1) US3756278A (en)
DE (1) DE2212149A1 (en)
FR (1) FR2129647A5 (en)
GB (1) GB1332617A (en)
NL (1) NL7203428A (en)
NO (1) NO133082C (en)
PL (1) PL71096B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH568487A5 (en) * 1973-08-08 1975-10-31 Cyphelly Ivan J
DE2456765A1 (en) * 1974-11-30 1976-06-10 Elmeg SERVO VALVE
US4450865A (en) * 1980-07-28 1984-05-29 Bennes Marrel Hydraulic power slide valve, especially designed for public work equipment
US4987927A (en) * 1988-12-27 1991-01-29 Sterer Engineering And Manufacturing Company Direct-drive valve
CN105314123A (en) * 2014-06-20 2016-02-10 徐延明 Control valve of aircraft carrier ejector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922400A (en) * 1956-04-13 1960-01-26 Hughes Tool Co Hydraulic servomechanism with feedback-energy-dissipating control valve
US3027880A (en) * 1959-06-22 1962-04-03 Shell Oil Co Quick-acting reversing valve with pressure compensation
US3013539A (en) * 1959-06-23 1961-12-19 Shell Oil Co Quick-acting reversing valve with speed compensation
US2981288A (en) * 1959-07-15 1961-04-25 Hough Co Frank Hydraulic control valves
US3114394A (en) * 1961-12-28 1963-12-17 Ibm Fluid apparatus

Also Published As

Publication number Publication date
FR2129647A5 (en) 1972-10-27
US3756278A (en) 1973-09-04
GB1332617A (en) 1973-10-03
PL71096B1 (en) 1974-04-30
NO133082C (en) 1976-03-03
DE2212149A1 (en) 1972-09-21
NL7203428A (en) 1972-09-19

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