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NO134812B - - Google Patents

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Publication number
NO134812B
NO134812B NO4957/73A NO495773A NO134812B NO 134812 B NO134812 B NO 134812B NO 4957/73 A NO4957/73 A NO 4957/73A NO 495773 A NO495773 A NO 495773A NO 134812 B NO134812 B NO 134812B
Authority
NO
Norway
Prior art keywords
piston
tooth
rod
arch
designed
Prior art date
Application number
NO4957/73A
Other languages
Norwegian (no)
Other versions
NO134812C (en
Inventor
A Sernhag
Original Assignee
Navire Cargo International Ab
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 Navire Cargo International Ab filed Critical Navire Cargo International Ab
Publication of NO134812B publication Critical patent/NO134812B/no
Publication of NO134812C publication Critical patent/NO134812C/no

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Classifications

    • 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
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/065Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
    • 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
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20Other details, e.g. assembly with regulating devices
    • F15B15/26Locking mechanisms
    • F15B15/261Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
    • 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
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/16Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
    • F16K31/163Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Transmission Devices (AREA)
  • Fluid-Driven Valves (AREA)

Description

Por manøvrering av de spjeldventiler som brukes i lastoljeledninger i fartøyer er det foreslått forskjellige typer av trykkvæskepåvirkede innretninger. Disse ventilene er nå av en slik størrelse at det trenges meget stor kraft for manøvreringen, men de trykkvæskepåvirkede innretningene muliggjør en avstandsmanøvrering av hele serier av slike ventiler. Hittil kjente innretninger har imidlertid vært ganske kompliserte og kostbare. Man setter nemlig det krav til innretningen at ventilen skal holdes i låst stilling, For maneuvering the butterfly valves used in cargo oil lines in vessels, different types of devices influenced by pressure fluid have been proposed. These valves are now of such a size that a great deal of force is needed for the manoeuvring, but the devices influenced by pressure fluid make it possible to remotely maneuver whole series of such valves. However, previously known devices have been quite complicated and expensive. Namely, the device requires that the valve be kept in the locked position,

enten åpen eller stengt, uansett om trykkvæsketilførselen til innretningen skulle opphøre. either open or closed, regardless of whether the pressure fluid supply to the device should cease.

En vanlig type av slike innretninger omfatter et dobbeltvirkende stempel som er montert med sin lengdeakse vinkelrett mot elementets lengdeaksel og samvirker med denne over en tannstangmekanisme bestående av en til stemplet, resp. en med denne forbundet stempelstang utformet tannstang, og en til elementet festet tannbue. En slik innretning er i alminnelighet enkel å manøvrere og montere, men man har hit- A common type of such devices comprises a double-acting piston which is mounted with its longitudinal axis perpendicular to the longitudinal axis of the element and cooperates with this via a rack mechanism consisting of one to the piston, resp. a piston rod connected to this designed toothed rod, and a toothed arch attached to the element. Such a device is generally easy to maneuver and install, but one has here-

til hatt vanskeligheter med å få en tilfredsstillende låsing av akselen i endestillingene. to had difficulties in obtaining a satisfactory locking of the axle in the end positions.

Oppfinnelsen tar sikte på å eliminere disse ulemper The invention aims to eliminate these disadvantages

og dette oppnås ved en innretning beregnet til påvirkning av et element med begrenset dreiebevegelse,'særlig akselen til en spjeldventil, hvilken innretning omfatter et dobbeltvirkende, trykkvirkepåvirket stempel, montert med sin lengdeakse vinkelrett mot elementets lengdeakse og samvirkende med dette over en mekanisme innrettet til å låses i ønsket endestilling av stempelet, helt til trykkvæske for føring av stempelet i motsatt retning tilføres, som er karakterisert ved at mekanismen and this is achieved by a device designed to affect an element with limited rotational movement, in particular the shaft of a butterfly valve, which device comprises a double-acting, pressure-actuated piston, mounted with its longitudinal axis perpendicular to the longitudinal axis of the element and cooperating with this via a mechanism designed to locked in the desired end position of the piston, until pressure fluid for guiding the piston in the opposite direction is supplied, which is characterized by the mechanism

omfatter en på stempelet, respektivt en med denne forbundet stempelstang, utformet tannstang og en til elementet festet tannbue, idet delingen mellom tennene i stangen resp. buen er valgt slik og de ytterste tanngapene på stempelet resp. stempelstangen er så forstørret, at det tillates en tilstrekkelig aksielt dødgang på stempelet at den nest siste tannen i tannbuen skal befinne seg rett overfor den siste, fullt utformede tannen i tannstangen, når stempelet befinner seg i ønsket endestilling. comprises a on the piston, respectively a piston rod connected to this, designed toothed rod and a toothed arch attached to the element, the division between the teeth in the rod resp. the arc is chosen like this and the outermost tooth gaps on the piston resp. the piston rod is so enlarged that a sufficient axial backlash is allowed on the piston so that the penultimate tooth in the tooth arch should be directly opposite the last, fully formed tooth in the tooth rod, when the piston is in the desired end position.

Oppfinnelsen skal i det følgende beskrives nærmere The invention will be described in more detail below

under henvisning til tegningen der with reference to the drawing therein

fig. 1 viser et riss, delvis i snitt og sett ovenfra fig. 1 shows a drawing, partly in section and seen from above

av en innretning montert på akselen til en spjeldventil, og der fig. 2 viser et tverrsnitt etter linjen II-II i fig. 1. Innretningen består av et hus 10 forsynt med et lokk 11. of a device mounted on the shaft of a butterfly valve, and where fig. 2 shows a cross-section along the line II-II in fig. 1. The device consists of a housing 10 provided with a lid 11.

Det parti av huset som vender bort fra lokket er forsynt med The part of the housing facing away from the lid is provided with

en flens 12 som er innrettet til å monteres på huset 13 til en ikke nærmere vist spjeldventil, hvis aksel 14 strekker seg opp i innretningens hus. Husets to endestykker er utformet som trykkvæskesylindere 15 resp. 16. I disse virker et stempel 17 som i det foreliggende tilfelle som en enhet strekker seg fra den ene sylinderen til den andre, og hvis midtparti er utformet som en tannstang 18. a flange 12 which is designed to be mounted on the housing 13 of a butterfly valve, not shown in more detail, whose shaft 14 extends up into the housing of the device. The housing's two end pieces are designed as pressure fluid cylinders 15 or 16. In these, a piston 17 acts which in the present case as a unit extends from one cylinder to the other, and whose middle part is designed as a rack 18.

Tannstangen 18 omfatter flere tenner 19, utformet med jevn deling og adskilt av tanngapet 20. Til akselen 14 er der festet en tannbue 21 som er forsynt med et antall tenner 22, anordnet med samme deling som i tannstangen 18. The rack 18 comprises several teeth 19, designed with uniform spacing and separated by the tooth gap 20. A toothed arch 21 is attached to the shaft 14 and is provided with a number of teeth 22, arranged with the same spacing as in the rack 18.

Tennene 19 i tannstangen 18 er utformet som tverrgående, rette kammer, adskilt av i tverrsnitt halvsirkelformede gap som kan være skåret direkte i stempelstangen eller i et separat element som er montert på denne ve'd hjelp av en skrueforbindelse. The teeth 19 in the rack 18 are designed as transverse, straight chambers, separated by semi-circular gaps in cross-section which can be cut directly in the piston rod or in a separate element which is mounted on it by means of a screw connection.

Tannbuen 21 består av to parallelle skiver, mellom hvilke de som sylindriske elementer utformede tennene 22 er montert, slik at de er fritt roterbare. Inngrep mellom disse tennene og tanngapene i stempelstangen skjer da under rulling, noe som er av spesiell betydning ved de ytre tanngapene 2k. The tooth arch 21 consists of two parallel disks, between which the teeth 22 designed as cylindrical elements are mounted, so that they are freely rotatable. Engagement between these teeth and the tooth gaps in the piston rod then occurs during rolling, which is of particular importance in the case of the outer tooth gaps 2k.

I husets vegger er det to innstillbare stopporganer In the walls of the house there are two adjustable stops

23 ved hjelp av hvilke akselens dreiebevegelse kan innstilles nøyaktig. Ved hver av sylindrene'15,16 finnes en tilkopling 25, 26 for alternativ tilførsel av trykkvæske, slik at stemplet 17 kan skyves frem og tilbake alt ettersom man ønsker at ventilen åpnes eller stenges. Stemplets aksielle bevegelse er tilstrekkelig til å sikre denne manøvrering. 23 by means of which the turning movement of the shaft can be precisely set. At each of the cylinders'15,16, there is a connection 25, 26 for alternative supply of pressure fluid, so that the piston 17 can be pushed back and forth according to whether the valve is opened or closed. The piston's axial movement is sufficient to ensure this manoeuvre.

Som ovenfor angitt er det ønskelig, at 'innretningen* automatisk låses i stemplets endestillinger, slik at spjeld-ventilen holdes stengt resp. åpen selv om trykkvæsketilførselen skulle bli borte. De to ytterste tanngapene 24 i tannstangen er derfor noe forlenget sammenlignet med de øvrige 19, og strekker seg noe utenfor den dreiebevegelse som tannbuen tillates av stoppeorganene 23, hvorved stemplet 17 får en viss dødgangsbevegelse. I en hvilken som helst endestilling kommer derfor den nest ytterste tannen 22a resp. bJi tannbuen til å ligge rett overfor den siste fullt utformede tannen 19a resp. 19b i tannstangen, hvorved, på den måte som vist i fig. 1, stempelstang og tannbue låses i forhold til hverandre helt til trykkvæske tilføres i den hensikt å forflytte stempelet 17 i motsatt retning. I fig. 1 er stemplet vist ført til høyre og det er altså venstre forstørrede tanngap 24 som samvirker med den ytterste venstre tannen 22 i tannbuen. As stated above, it is desirable that the 'device* is automatically locked in the end positions of the piston, so that the butterfly valve is kept closed or open even if the pressure fluid supply were to be lost. The two outermost tooth gaps 24 in the toothed rack are therefore somewhat elongated compared to the other 19, and extend somewhat beyond the turning movement that the toothed arch is allowed by the stop members 23, whereby the piston 17 gets a certain idle movement. In any end position, therefore, the second outermost tooth 22a resp. bJi the dental arch to lie directly opposite the last fully formed tooth 19a or 19b in the rack, whereby, in the manner shown in fig. 1, piston rod and tooth arch are locked in relation to each other until pressurized fluid is supplied with the intention of moving the piston 17 in the opposite direction. In fig. 1, the piston is shown moved to the right and it is thus the left enlarged tooth gap 24 that cooperates with the outermost left tooth 22 in the dental arch.

Det er åpenbart at man kan utforme et dobbeltsidig på-virket stempel i en eneste sylinder, idet stemplet er forsynt It is obvious that one can design a double-sided actuated piston in a single cylinder, since the piston is provided with

med en utenfor sylinderen stikkende .stempelstang som samvirker med tannbuen. Oppfinnelsen er ovenfor beskrevet i forbindelse med manøvrering av spjeldventiler, men det er klart at den kan brukes for mange lignende formål der det er tilsiktet å utføre en begrenset dreiebevegelse ved et element og låse dettes stilling i begge endestillingene av dreiebevegelsen. with a piston rod projecting outside the cylinder that interacts with the tooth arch. The invention is described above in connection with maneuvering butterfly valves, but it is clear that it can be used for many similar purposes where it is intended to perform a limited turning movement at an element and lock its position in both end positions of the turning movement.

Claims (2)

1. Innretning beregnet til påvirkning av et element med begrenset dreiebevegelse, særlig akselen (14) til en spjeldventil, hvilken innretning omfatter et dobbeltvirkende, trykkvirkepåvirket stempel (17), montert med sin lengdeakse vinkelrett mot elementets■lengdeakse og samvirkende med dette over en mekanisme innrettet til å låses i ønsket endestilling av stempelet, helt til trykkvæske for føring av stempelet i motsatt retning tilføres, karakterisert ved at1. Device intended for influencing an element with limited rotational movement, in particular the shaft (14) of a butterfly valve, which device comprises a double-acting, pressure-actuated piston (17), mounted with its longitudinal axis perpendicular to the element's ■longitudinal axis and cooperating with this via a mechanism designed to be locked in the desired end position of the piston, until pressure fluid for guiding the piston in the opposite direction is supplied, characterized in that mekanismen omfatter en på stempelet, respektivt en med denne forbundet stempelstang, utformet tannstang (18) og en til elementet festet tannbue (21), idet delingen mellom tennene (19,22) i stangen resp. buen er valgt slik og de ytterste tanngapene (24) på stempelet (17) resp. stempelstangen er så forstørret, at det tillates en tilstrekkelig aksiell dødgang på stempelet at den nest siste-tannen (22a,b) i tannbuen skal befinne seg rett overfor den giste, fullt utformede tannen (19a,b) i tannstangen, når stempelet befinner seg i ønsket endestilling. the mechanism comprises a toothed rod (18) formed on the piston, respectively a piston rod connected to it, and a toothed arch (21) attached to the element, the division between the teeth (19,22) in the rod resp. the arc is chosen like this and the outermost tooth gaps (24) on the piston (17) resp. the piston rod is so enlarged that a sufficient axial backlash is allowed on the piston so that the penultimate tooth (22a,b) in the tooth arch should be directly opposite the given, fully formed tooth (19a,b) in the tooth rod, when the piston is in in the desired end position. 2. Innretning ifølge krav 1, karakterisert ved at tannbuen (21) består av to parallelle plater, mellom hvilke de som sylindriske elementer utformede tennene (22) er anordnet fritt roterbart.2. Device according to claim 1, characterized in that the dental arch (21) consists of two parallel plates, between which the teeth (22), designed as cylindrical elements, are freely rotatable.
NO4957/73A 1972-12-29 1973-12-27 NO134812C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7217119A SE379404B (en) 1972-12-29 1972-12-29

Publications (2)

Publication Number Publication Date
NO134812B true NO134812B (en) 1976-09-06
NO134812C NO134812C (en) 1976-12-15

Family

ID=20303270

Family Applications (1)

Application Number Title Priority Date Filing Date
NO4957/73A NO134812C (en) 1972-12-29 1973-12-27

Country Status (4)

Country Link
JP (1) JPS5538533B2 (en)
ES (1) ES421838A1 (en)
NO (1) NO134812C (en)
SE (1) SE379404B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6167995U (en) * 1984-10-11 1986-05-09
JPH073046Y2 (en) * 1988-01-11 1995-01-30 エスエムシー株式会社 Compound actuator
JPH01118202U (en) * 1988-02-03 1989-08-10

Also Published As

Publication number Publication date
SE379404B (en) 1975-10-06
ES421838A1 (en) 1976-04-16
JPS4997175A (en) 1974-09-13
NO134812C (en) 1976-12-15
JPS5538533B2 (en) 1980-10-04

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