NO134645B

NO134645B -

Info

Publication number: NO134645B
Application number: NO457072A
Authority: NO
Inventors: I L Andersson
Original assignee: Cema Produkter
Priority date: 1971-12-17
Filing date: 1972-12-11
Publication date: 1976-08-16
Also published as: NO134645C; SE374023B; DE2260423A1; FI50043C; FI50043B; GB1415324A; DK133540C; NL7216872A; DK133540B; BE792892A; ATA1049872A; AT366266B; FR2167060A5

Description

Anordning ved ventil. Device at valve.

Oppfinnelsen vedrører en anordning ved ventiler, som er forsynt med svingtaart ventillegeme og spindel for slik påvirkning av ventillegemet, at dette i avhengighet av ventilspindelens stilling tvangsvis kan holdes stengt eller åpen, imidlertid også i en mellomstilling av spindelen tillates å svinge fritt mellom helt åpen og stengt stilling under innvirkning av strømningsforholdene i ventilen, hvilken forbindelse mellom ventillegemet og ventilspindelen utgjøres av en anordning av det slag, som er forsynt med spor og med sporet inngripende tapp for ventillegemets og ventilspindelens til-passning til den endring av disses innbyrdes stilling, som forekommer ved aksial bevegelse av ventilspindelen ventillegemets svingning tilveiebragt ved denne aksielle bevegelse. Anordningen gjør ventilen sær-lig egnet for anvendelse i forbindelse med tyktflytende væsker, f. eks. de nu i stor ut-strekning anvendte tykke brenselsoljer, ved at motstanden mot den gjennom ventilen fremstrømmende væske reduseres til et mi-nimum, samtidig som anordningen forenk-ler ventilen i høy grad. Det nye ved oppfinnelsen er, at anordningen har form av en leddinnretning, som omfatter et ledd i hvilket sporet er tatt ut og som forbinder ventillegemet eller en med dette fast forbundet del med ventilspindelen, hvilket ledd svingbart griper inn i så vel ventillegemet resp. den med dette fast forbundne del som ventilspindelen ved hjelp av ak-seltapper, av hvilke den ene akseltapp griper inn i sporet i leddet og derved, foruten å overføre ved spindelens aksielle bevegelser tilveiebragt svingningsbevegelser til ventillegemet for åpning og stengning, kan bringes i en mellomstilling i sporet, i hvilken tappen samt leddets svingbare lagring tillater fri svingning av ventillegemet under innvirkning av strømningstilstanden i dette. The invention relates to a device for valves, which is provided with a pivotable valve body and spindle for such influence on the valve body that, depending on the position of the valve spindle, this can be forcibly kept closed or open, however, also in an intermediate position of the spindle it is allowed to swing freely between fully open and closed position under the influence of the flow conditions in the valve, which connection between the valve body and the valve stem is formed by a device of the kind that is provided with a groove and with the groove engaging pin for the adaptation of the valve body and the valve stem to the change in their relative position that occurs by axial movement of the valve spindle, the oscillation of the valve body provided by this axial movement. The device makes the valve particularly suitable for use in connection with viscous liquids, e.g. the now widely used thick fuel oils, in that the resistance to the liquid flowing through the valve is reduced to a minimum, while at the same time the device greatly simplifies the valve. What is new about the invention is that the device has the form of a joint device, which comprises a joint in which the groove is taken out and which connects the valve body or a part fixedly connected to it with the valve stem, which joint pivotably engages both the valve body and the part fixedly connected to this, such as the valve spindle by means of shaft pins, one of which shaft pins engages in the groove in the joint and thereby, in addition to transmitting by the axial movements of the spindle provided oscillating movements to the valve body for opening and closing, can be brought into an intermediate position in the slot, in which the pin as well as the pivotable bearing of the joint allow free oscillation of the valve body under the influence of the flow state therein.

Oppfinnelsen skal nu beskrives under The invention will now be described below

henvisning til tegningene, hvor reference to the drawings, where

fig. 1—3 viser en med anordningen forsynt ventil sett i snitt og med de bevege-lige deler i forskjellige stillinger. fig. 1-3 show a valve provided with the device seen in section and with the moving parts in different positions.

Fig. 4 og 5 viser en modifikasjon av Fig. 4 and 5 show a modification of

anordningen sett fra siden. the device seen from the side.

Fig. 6 viser en ytterligere modifikasjon Fig. 6 shows a further modification

av anordningen sett i snitt. of the device seen in section.

Ventilen har et svingbart ventillegeme 1, som er lagret på en aksel 2 i et hus 3 med innløp 4 og utløp 5, mellom hvilke strømningsveien gjennom ventilhuset 3 og således gjennom ventilen stort sett har et liniært forløp. Ventilen har dertil et ma-nøverorgan i form av en spindel 6, som på den ende som rekker ut av huset er forsynt med et ratt 7 og dreibart lagret i huset i en i dette anordnet pakningsboks 8 og en av søyler 9 båret lagring 10. Spindelen er forsynt med et organ 11, og en på søylen 9 anbragt indeks ved hjelp av hvilke ventillegemets stilling kan avleses. Spindelen 6 er på i og for seg kjent måte ved dreining anordnet aksielt forskyvbart og anordnet for med sin for inngrep med ventillegemet 1 beregnete og ved ventillegemets fasthold-ning i den i fig. 1 viste stengningsstilling mot ventillegemet, anliggende ende 13 forskyvbart å gripe inn i en med to ledd 14 utformet leddanordning 15, som er forsynt med en langsgående styring 16, der dannes av to, ett i hvert ledd 14 uttatt spor 17. Leddene 14 er svingbart lagret på en aksel 18, som ér anbragt i et fra ventillegemet 1 opp-stående øre 19. Spindelen 6 er på den for inngrep med ventillegemet 1 beregnete en- The valve has a pivotable valve body 1, which is mounted on a shaft 2 in a housing 3 with inlet 4 and outlet 5, between which the flow path through the valve housing 3 and thus through the valve largely has a linear course. The valve also has a maneuvering device in the form of a spindle 6, which on the end that extends out of the housing is provided with a steering wheel 7 and rotatably stored in the housing in a packing box 8 arranged therein and a storage 10 supported by columns 9. The spindle is provided with a member 11, and an index placed on the column 9 by means of which the position of the valve body can be read. The spindle 6 is, in a manner known per se, arranged axially displaceable by rotation and arranged for its intended engagement with the valve body 1 and by the valve body's retention in the one in fig. 1 shown closed position against the valve body, adjacent end 13 displaceable to engage in a joint device 15 designed with two joints 14, which is provided with a longitudinal guide 16, which is formed by two, one in each joint 14 slotted groove 17. The joints 14 are pivotable stored on a shaft 18, which is placed in an ear 19 rising from the valve body 1. The spindle 6 is on the one intended for engagement with the valve body 1

de forsynt med en med spindelen 6 dreibart men ikke forskyvbart forbunden del 20, they are provided with a part 20 rotatably but not displaceably connected to the spindle 6,

som er forsynt med to i motsatte retninger utstrekkende tapper 21, som griper inn i sporene 17 i leddene 14, hvilke er anbragt på begge sider av spindelen 6. Delens 20 which is provided with two pins 21 extending in opposite directions, which engage in the grooves 17 in the joints 14, which are placed on both sides of the spindle 6. The part 20

ende som er beregnet for inngrep med ventillegemet, er utformet med en rund flate 22, som i ventillegemet under innvirkning av spindelen 6 holdes i stengningsstilling anligger mot en med bueformet anleggs- end, which is intended for engagement with the valve body, is designed with a round surface 22, which in the valve body under the influence of the spindle 6 is held in the closed position abuts against an arc-shaped abutment

flate 23 for delen 20 utformet knast 24, surface 23 for the part 20 designed cam 24,

hvilken er anbragt på ventillegemet 1 mel- which is placed on the valve body 1 mel-

lom de med dette leddbart forbundne ledd 14, lom those with this articulately connected link 14,

I den modifikasjon sam er vist i fig. In the modification sam shown in fig.

4 og 5, er ventillegemet stivt forbundet med en arm 25, som med den ene ende er festet på ventillegemets 1 aksel 2 på dennes ende, 4 and 5, the valve body is rigidly connected with an arm 25, which is fixed with one end to the valve body's 1 shaft 2 at its end,

som rager ut av huset 3. Ved hjelp av ar- which protrudes from the housing 3. Using ar-

men 25 er ventillegemet 1 forbundet med den med manøverorganet forskyvbart forbundne leddanordning 15, hvorhos armen 25 har knasten 24, mot hvilken spindelen but 25, the valve body 1 is connected to the articulated device 15, which is displaceably connected to the maneuvering body, in which the arm 25 has the cam 24, against which the spindle

6 ligger an i ventillegemets stengningsstil- 6 rests in the closing position of the valve body

ling. Den ende av spindelen som er beregnet for inngrep med armen 25 har en til knas- ling. The end of the spindle which is intended for engagement with the arm 25 has a

tens 24 bueformete overflate 23 svarende flate 26, på begge sider av hvilken to vin- tens 24 arc-shaped surface 23 corresponding to surface 26, on both sides of which two win-

ger 27 rager ut fra spindelens 6 ende 13 for styring av armen 25. Ved denne utførelses- gear 27 projects from the end 13 of the spindle 6 for controlling the arm 25. In this embodiment

form vil således armen 25 og leddanordnin- shape, the arm 25 and joint arrangement will thus

gen 15 samt spindelen 6 bli liggende helt ved siden av og utenfor huset 3, hvorved ventilen vesentlig forenkles og ventillege- gene 15 as well as the spindle 6 lie completely next to and outside the housing 3, whereby the valve is significantly simplified and the valve

mets stilling uten spesielle midler kan av- met's position without special funds can de-

leses. is read.

Ventilens funksjon vil uten videre væ- The function of the valve will immediately

re innlysende sett på bakgrunn av den foran angitte detalj i beskrivelsen, i den i fig. 1 viste stengningsstilling tillater så- re obvious from the background of the previously stated detail in the description, in the one in fig. 1 closed position shown allows so-

ledes ventillegemet 1 ikke noen strømning gjennom ventilen. I den i fig. 2 viste åp-ningsstilling tillater ventillegemet 1 fri gjennomstrømning gjennom ventilen. I spindelen 6 i fig. 3 viste mellomstilling til- the valve body 1 does not lead any flow through the valve. In the one in fig. The open position shown in 2 allows the valve body 1 free flow through the valve. In the spindle 6 in fig. 3 showed intermediate position to-

later spindelen fri bevegelse av ventille- allows the spindle free movement of the valve

gemet 1, sam således 'kan stenges fra den med helt opptrukne linjer viste stengte stil- gemet 1, sam thus 'can be closed from the one with fully drawn lines shown closed style-

ling til den med prikkstrekete linjer helt åpne stilling under innvirkning av det gjen- to the fully open position with dotted lines under the influence of the re-

nom ventilen fremstrømmende mediums bevegelse. I ventillegemets med prikkstre- nom the movement of the medium flowing through the valve. In the valve body with dotted lines

kete linjer viste stilling holdes denne såle- the position shown by the lines is held this sole

des oppløftet av det normalt gjennom ven- des uplifted by it normally through ven-

tilen fremstrømmende medium, imens ventillegemet i den helt opptrukne stilling har falt ned i stengestilling på grunn av ikke until the flowing medium, while the valve body in the fully retracted position has fallen into the closed position due to not

ønsket tiibakestrømningsbevegelse av me- desired backflow movement of me-

diet. Så snart slike bevegelser opphører, og mediet søker å strømme i normal retning, diet. As soon as such movements cease, and the medium seeks to flow in the normal direction,

vil ventillegemet løftes tilbake til den stilling vist med prikkstrekete linjer. the valve body will be lifted back to the position shown in dotted lines.

Den i fig. 6 viste ventil har en i lengde-retning forskyvbar spindel 30, hvis gjengete ende griper inn i en mutter 31, som er forbundet med et ratt 32. Mutteren 31 er drei- The one in fig. 6, the valve shown has a longitudinally displaceable spindle 30, whose threaded end engages a nut 31, which is connected to a steering wheel 32. The nut 31 is rotatable

bart men uforskyvbart lagret i en lagring 34 understøttet av i ventilens hus 35 festete bare but immovably stored in a bearing 34 supported by in the valve housing 35 fixed

søyler 33. Spindelen 30 er aksielt forskyv- columns 33. The spindle 30 is axially displace-

bart ført gjennom en pakningsboks 36 i huset 35 og er på den ende som rager inn i huset og samvirker med leddanordningen 15 forsynt med en med spindelen 30 ved bart passed through a packing box 36 in the housing 35 and is on the end which projects into the housing and cooperates with the joint arrangement 15 provided with a spindle 30 at

hjelp av en splint 37 fast forbundet del 38, som svarer til delen 20 i utførelsesek-semplet ifølge fig. 1—3, og i likhet med denne samvirker med leddanordningen ved hjelp av tapper, som griper inn i dennes spor 17, hvilke tapper i det foreliggende eksempel dannes av de fra delen 38 fremskytende ender av en tvers gjennom denne del 38 forløpende pinne 39. Delens 38 for inngrep med ventillegemet 1 beregnete runde flate 40 for å holde iventillegerhet i stengt stilling ligger an mot en på til-svarende imåte utformet flate 41 på en knast 42 på ventillegemet 1. I knasten 42 by means of a pin 37 firmly connected part 38, which corresponds to the part 20 in the design example according to fig. 1-3, and like this cooperates with the joint device by means of pins, which engage in its groove 17, which pins in the present example are formed by the projecting ends of the part 38 of a pin 39 running transversely through this part 38. The round surface 40 of the part 38 for engagement with the valve body 1, designed to hold the valve body in the closed position, rests against a correspondingly designed surface 41 on a cam 42 on the valve body 1. In the cam 42

er leddanordningen 15 lagret ved hjelp av en aksel 43. Ventillegemet 1 er som i ut-førelseseksemplet ifølge fig. 1—3 lagret svingbart på en aksel 2 mellom ventilens innløp 4 og utløp 5. Med 45 betegnes et innstillbart anslag for et på spindelen fes- the joint arrangement 15 is supported by means of a shaft 43. The valve body 1 is as in the design example according to fig. 1-3 mounted pivotably on a shaft 2 between the valve's inlet 4 and outlet 5. 45 denotes an adjustable stop for a on the spindle fes-

tet organ 46, som samvirker med en indeks 47 for angivelse av ventillegemets 1 stilling. tet body 46, which cooperates with an index 47 for indicating the position of the valve body 1.

Ved fastsettelse på spindelen 30 av organet By fixing on the spindle 30 of the body

46 og anordningen av anslaget 45, kan 46 and the arrangement of the estimate 45, can

spindelens 30 aksiale forskyvning mot stengt stilling av ventillegemet 1 begrenses, the axial displacement of the spindle 30 towards the closed position of the valve body 1 is limited,

og derved elimineres for kraftig tiltrekning av ventilspindelen. Spindelen 30 er i ut-førelsesformen ifølge fig. 6 anordnet i rett vinkel i forhold til ventilens sete 44, hvor- and thereby eliminating too strong attraction of the valve stem. The spindle 30 is in the embodiment according to fig. 6 arranged at right angles to the valve's seat 44, where

ved de i ventilen ved dennes funksjonering forekommende krefter, får en gunstigere retning enn i utførelsesformen ifølge fig. due to the forces occurring in the valve during its operation, has a more favorable direction than in the embodiment according to fig.

1—3. 1—3.

Ytterligere modifikasjoner er mulige innenfor rammen av oppfinnelsestanken, Further modifications are possible within the scope of the inventive concept,

slik den er definert i påstandene. as defined in the claims.

Claims

1. Device for a valve, which is provided with a rotatable valve body and spindle for such an influence thereof, that the valve body, depending on the position of the spindle, can be forcibly kept closed or open, but also

in an intermediate position the spindle is allowed to oscillate freely between fully open and closed position under the influence of the flow state in the valve, which connection between the valve body and the valve spindle is formed by a device, which is of the type, which is provided with a groove and cooperates with the groove pin for the adaptation of the valve body and the valve stem to the change in their relative position, which occurs during axial movement of the valve stem and the oscillation of the valve body provided by this axial movement, characterized by a joint device, which comprises a joint (14), in which the groove (17) is taken out and which connects the valve body (1) or a part (25) firmly connected to it with the valve spindle (6), which link (14) pivotably engages in both the valve body (1) or the part (25) firmly connected to this as the valve stem (6) by means of shaft pins (18, 21), of which one shaft pin (21) engages in the groove i (17) in the joint (14) and thereby, in addition to transmitting through the spindle (6) axial movements, it brings about oscillating movements for the valve body (1) for the opening and closing of the valve, can be brought into an intermediate position in the groove (17), in which the pin (21) as well as the hinged joint (14) allow free oscillation of the valve body (1) under the influence of the flow condition in the valve body.

2. Device as stated in claim 1, characterized in that the engaging end of the valve spindle (6) with the link (14) is

arranged so that in the valve's closed position it abuts the valve body (1) or a part permanently connected to it for the joint's relief.

3. Device as set forth in claim 1 and 2, characterized in that the link device comprises two parallel to each other on each side of the spindle (6) and with their ends on the valve body (1) or the pivotably mounted part connected to this part (14 ), in which grooves (17) have been taken out, where with the grooves (17) in the two joints (14) engaging studs (21) are arranged diametrically on a part (20) placed on the interposing end of the spindle (6) between the joints ), which is provided with a round surface (22), which in the closed position of the valve engages in an arc-shaped surface (23) on the valve body (1) or the part connected with this.

4. Device as stated in claims 1-3, characterized in that the part fixedly connected to the valve body (1) is formed by the arm (25) projecting from the valve, on the free end of which the joints (14) are pivotally mounted and which is provided with the arc-shaped surface (23), against which the round surface (22) of the part (20) placed on the spindle (6) attacks, the spindle as a whole being arranged outside the valve.

5. Device as stated in claims 3 and 4, characterized in that the part (20) is freely rotatably stored on the spindle (6) and has two projecting guide rings (27) on both sides of the round surface (22).