PL71096B1 - - Google Patents

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Publication number
PL71096B1
PL71096B1 PL1972154023A PL15402372A PL71096B1 PL 71096 B1 PL71096 B1 PL 71096B1 PL 1972154023 A PL1972154023 A PL 1972154023A PL 15402372 A PL15402372 A PL 15402372A PL 71096 B1 PL71096 B1 PL 71096B1
Authority
PL
Poland
Prior art keywords
slider
valve
slide
pressure
spool
Prior art date
Application number
PL1972154023A
Other languages
Polish (pl)
Original Assignee
Liaaen A/S 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 A/S A M filed Critical Liaaen A/S A M
Publication of PL71096B1 publication Critical patent/PL71096B1/pl

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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

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

Description

Zawór suwakowy do sterowania silownika hydraulicznego PrzeDmiotem wynalazku jest zawór suwakowy do sterowania silownika hydraulicznego, w którym z su¬ wakiem jest polaczony hamulec do zapewnienia dokladnego ustawiania i unieruchamiania suwaka przy uzyciu niewielkiej sily dzieki istnieniu na kazdym koncu suwaka komory cisnieniowej utworzonej przez powierzchnie obudowy zaworu i zaopatrzonej we wlot czynnika wywolujacego cisnienie, które jest mniejsze od roboczego cisnienia zaworu.W znanych urzadzeniach tego typu, gdzie uzywa sie suwaka pilotowego lub rurki strumieniowej w celu poddawania dzialaniu cisnienia do wyboru jednej lub drugiej komory cisnieniowej, rzecza trudna jest umiejsco¬ wienie suwaka sterujacego w polozeniach posrednich i zapewnienie stalosci jego polozenia.Gelem wynalazku jest unikniecie tej niedogodnosci. Wedlug wynalazku na kazdym koncu osiowego prze¬ dluzenia suwaka, które ma mniejsza srednice od zasadniczego trzonu suwaka znajduja sie kanaly usytuowane równolegle do osi suwaka laczace obie komory cisnieniowe z przestrzenia miedzy czolowa plaszczyzna przedlu-* zenia a kolnierzem na precie umieszczonym suwliwie w otworze osiowym suwaka. Sterujac z zewnatrz ruchem preta mozna dosuwac jego kolnierz do plaszczyzny czolowej, przedluzenia suwaka laczac tym samym jedna z komór z atmosfera odcinajac jednoczesnie polaczenie drugiej komory z atmosfera i odwrotnie.Równolegle do osi suwaka kanaly, przez które kazda z komór cisnieniowych moze byc laczona z atmosfe¬ ra, celem obnizenia w niej cisnienia, sa wykonane na calej dlugosci przedluzenia suwaka i wychodza na zewnatrz w czolowych plaszczyznach przedluzenia suwaka. Pret umieszczony suwliwie w otworze osiowym suwaka, poru¬ szany z zewnatrz, jest zaopatrzony w kolnierz o powierzchni granicznej równoleglej do plaszczyzny czolowej przedluzenia suwaka, przy czym zamykanie kanalów nastepuje wskutek zetkniecia sie odpowiedniego kolnierza z czolowa plaszczyzna przedluzenia suwaka. Jak wskazano, w kazdym koncu suwaka znajduje sie komora cisnie¬ niowa dla umozliwienia ruchu suwaka w obu kierunkach. Celem zapewnienia prostego lacznego sterowania obu komór jest dogodne, aby elementy, które maja byc sterowane z zewnatrz w celu regulacji cisnienia w kazdej z komór za posrednictwem otworów, byly polaczone wspólnym pretem przechodzacym przez suwak w kierunku osiowym i dajacym sie przesuwac osiowo wzgledem niego. Uklad taki umozliwia jednoczesne wplywanie na wielkosc cisnienia w obu komorach.2 71 096 Przedmiot wynalazku jest uwidoczniony w przykladzie wykonania na rysunku, który przedstawia zawór suwakowy zaopatrzony w urzadzenie sterujace, w przekroju podluznym.Cylindryczna obudowa 1 zawiera suwak 2 przystosowany do przesuwania sie wzdluz jej osi. Obudowa ma konwencjonalny wlot 3 czynnika wywolujacego cisnienie P oraz, podobnie jak suwak 2, rowki pierscieniowe, przeznaczone do doprowadzania czynnika, zaleznie od polozenia suwaka, do strony A lub B tloka 4 silownika hydraulicznego 5 oraz przez wyloty R do osadnika.W kazdym koncu suwak 2 jest uksztaltowany wzgledem obudowy w taki sposób, ze przy centralnym polozeniu suwaka tworza sie miedzy jego powierzchniami 7 i odpowiadajacymi powierzchniami 8 zaslepek 10 dwie komory cisnieniowe 6. Suwak ma równiez przedluzenia 9, wystajace przez otwory wzaslepkach 10, przy czym w przedluzeniach 9 wykonane sa wzdluzne kanaly 11, sluzace do polaczenia komór 6 z atmosfera.Z drugiej strony kazda z tych komór jest stale polaczona ze zródlem czynnika wywolujacego cisnienie P przez zawór dlawiacy 13 tak, ze gdy suwak 2 znajduje sie w polozeniu centralnym, cisnienie w obu komorach 6 jest równe lub mniejsze od cisnienia P. Pret 14 przechodzi swobodnie w kierunku osiowym przez suwak 2 i na zewnatrz kazdego z przedluzen suwaka 9 jest zaopatrzony w kolnierz 15, ponadto jednym koncem jest pola¬ czony z przegubem 16 tak, ze wraz ze swymi kolnierzami moze byc w zadany sposób przesuwany osiowo wzgledem suwaka 2.Kanaly 11 maja postac otworów wykonanych w przedluzeniach 9, wychodzacych na powierzchnie kon¬ cowe 12 tych przedluzen. Jednoczesnie srednica kolnierzy 15 i ich wzajemna odleglosc mierzona wzdluz preta 14 sa tak dobrane, ze gdy suwak jest w swym srodkowym polozeniu, przedstawionym na rysunku, to miedzy kazda z plaszczyzn 12 i odpowiednim kolnierzem 15 istnieje szczelina zapewniajaca polaczenie odnosnej komo¬ ry 6 z atmosfera.Jesli do zadanego przestawienia silownika 4/5 potrzebne jest przesuniecie suwaka 2 z polozenia srodkowe¬ go wprawo, to uzyskuje sie to przez pociagniecie preta 14 w tym kierunku. Wskutek tego zmniejsza sie odle¬ glosc lewego kolnierza 15 od odpowiadajacej plaszczyzny 12 przedluzenia 9, a wiec ogranicza sie moznosc swobodnego wyplywu z kanalów 11 i cisnienie w lewej komorze 6 wzrasta. W wyniku, powierzchnia 7 suwaka zostaje poddana dzialaniu tego zwiekszonego cisnienia. Plaszczyzna 12 jest równiez poddana zwiekszonemu cisnieniu, lecz w bardzo niewielkim stopniu. Jednoczesnie przekrój swobodnego wylotu z prawej komory 6 staje sie odpowiednio wiekszy. Wskutek tej róznicy cisnienia w lewej i prawej komorze 6 suwak 2 zostaje przesuniety w prawo, w wyniku czego powstaje odpowiednie oddzialywanie na tlok 4 silownika 5. Po wykonaniu przez tlok zadanego przesuniecia, mechanizm zlozony z przegubu 16 i dzwigni 17 powoduje w sposób konwencjonalny przywrócenie suwaka do polozenia srodkowego i caly uklad jest gotowy do nowego przestawienia. PL PL PLA slide valve for controlling a hydraulic cylinder The subject of the invention is a slide valve for controlling a hydraulic cylinder in which a brake is connected to the slide to ensure accurate positioning and locking of the slide with little force due to the presence of a pressure chamber at each end of the slide formed by the surfaces of the valve housing and provided with an inlet for a pressure inducing medium which is less than the operating pressure of the valve. in intermediate positions and to ensure its stability. The aim of the invention is to avoid this disadvantage. According to the invention, at each end of the axial extension of the slider, which is smaller in diameter than the main shaft of the slider, there are channels located parallel to the axis of the slider, connecting both pressure chambers with the space between the front plane of the extension and a collar on the rod slid in the axial hole of the slider. . By controlling the movement of the rod from the outside, you can move its collar to the front plane, extend the slider, thus connecting one of the chambers with the atmosphere, cutting off the connection of the second chamber with the atmosphere and vice versa. ¬ ra, in order to reduce the pressure in it, are made along the entire length of the zipper extension and extend outwards in the front planes of the zipper extension. The pretension slid in the axial opening of the slider, moved from the outside, is provided with a flange with an edge surface parallel to the front plane of the slider extension, the channels being closed by the contact of the corresponding flange with the front plane of the slider extension. As indicated, at each end of the slider there is a pressure chamber to permit movement of the slider in both directions. For simple joint control of the two chambers, it is convenient that the elements to be externally controlled for pressure regulation in each of the chambers via the openings are connected by a common rod which extends axially through the slider in the axial direction. Such a system makes it possible to influence the pressure in both chambers at the same time. axis. The housing has a conventional inlet 3 for pressure factor P and, like the slider 2, ring grooves for supplying the medium, depending on the position of the spool, to the A or B side of the piston 4 of the hydraulic cylinder 5 and through the outlets R to the settler. 2 is shaped with respect to the housing in such a way that, at the central position of the slider, two pressure chambers are formed between its surfaces 7 and the corresponding surfaces 8 of the plugs 10. longitudinal channels 11, used to connect the chambers 6 with the atmosphere. On the other hand, each of these chambers is permanently connected to the source of the pressure factor P through the throttle valve 13 so that when the spool 2 is in the central position, the pressure in both chambers 6 is equal to or less than the pressure P. Pret 14 passes freely in the axial direction through the spool 2 and outwards each One end of the slider 9 is provided with a flange 15, moreover, at one end it is connected to the articulation 16 so that, together with its flanges, it can be axially displaced with respect to the slide 2 in a predetermined manner. on the end faces of these extensions. At the same time, the diameter of the flanges 15 and their mutual distance measured along the rod 14 are so selected that when the slider is in its central position as shown in the drawing, there is a gap between each of the planes 12 and the respective flange 15 to connect the respective chamber 6 with the atmosphere. .If it is necessary to move the slide 2 from the middle position to the right for the desired adjustment of the 4/5 actuator, this is achieved by pulling the rod 14 in this direction. As a result, the distance of the left flange 15 from the corresponding plane 12 of the extension 9 is reduced, so that the free flow out of the channels 11 is limited and the pressure in the left chamber 6 increases. As a result, the spool surface 7 is subjected to this increased pressure. Plane 12 is also subjected to increased pressure, but very little. At the same time, the cross section of the free outlet from the right ventricle 6 becomes correspondingly larger. As a result of this difference in pressure in the left and right chambers 6, the spool 2 is moved to the right, whereby the piston 4 of the actuator 5 is adequately acted upon. After the piston has made the desired displacement, the joint 16 and the lever 17 mechanism conventionally restores the slide. to the middle position and the whole system is ready for a new adjustment. PL PL PL

Claims (2)

1. Zastrzezenia patentowe 1. Zawór suwakowy do sterowania silownika hydraulicznego, zawierajacy na kazdym koncu suwaka ko¬ more cisnieniowa do ustawiania jego polozenia, przy czym kazda taka komora jest ograniczona powierzchnia walcowa obudowy zaworu oraz ma wlot dla czynnika wywolujacego cisnienie, znamienny tym, ze p- rzedluzenie (9) na obu koncach suwaka (2) ma kanaly (11) usytuowane równolegle do osi suwaka, laczace komory (6) z przestrzenia pomiedzy czolowa plaszczyzna (12) suwaka (2) a kolnierzem (15) preta (14) suwli- wie umieszczonego w osiowym otworze suwaka (2) i napedzanego z zewnatrz zaworu.1. Claims 1. A slide valve for controlling a hydraulic actuator, comprising at each end of the slide a pressure chamber for adjusting its position, each such chamber being limited by the cylindrical surface of the valve housing and having an inlet for a pressure generating medium, characterized in that p- extension (9) at both ends of the slider (2) has channels (11) located parallel to the axis of the slider, connecting the chambers (6) with the space between the front plane (12) of the slider (2) and the flange (15) of the rod (14) slide located in the axial opening of the spool (2) and externally driven valve. 2. Zawór wedlug zastrz. 1,znamienny tym, ze odleglosc w kierunku wzdluz osi zaworu miedzy powierzchniami kolnierzy (15), z których kazda lezy naprzeciw jednej z dwóch powierzchni czolowych (12) przedluzen suwaka (2), jest nieznacznie wieksza od dlugosci suwaka (2) wraz z przedluzeniami (9).71 096 PL PL PL2. The valve according to claim 1, characterized in that the distance along the valve axis between the surfaces of the flanges (15), each of which is opposite one of the two face surfaces (12) of the spool extension (2), is slightly greater than the length of the spool (2) together with the extensions (9) 71 096 PL PL PL
PL1972154023A 1971-03-16 1972-03-13 PL71096B1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
PL71096B1 true PL71096B1 (en) 1974-04-30

Family

ID=19877900

Family Applications (1)

Application Number Title Priority Date Filing Date
PL1972154023A PL71096B1 (en) 1971-03-16 1972-03-13

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
DE2212149A1 (en) 1972-09-21
FR2129647A5 (en) 1972-10-27
NO133082C (en) 1976-03-03
US3756278A (en) 1973-09-04
NL7203428A (en) 1972-09-19
NO133082B (en) 1975-11-24
GB1332617A (en) 1973-10-03

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