SE205103C1

SE205103C1 -

Info

Publication number: SE205103C1
Authority: SE
Publication date: 1965-01-01

Description

KLASS INTERNATIONELLSVENSK F 16 k47g:45/04 PATENT- OCH REGISTRERINGSVERKET Ans. 10 763/1962 inkom den 8/10 1962 utlagd den 18/10 196 G M BERGSTRAND, NA.SBYPARK Anordning for manovrering ay en ventilspindel e.d. CLASS INTERNATIONAL SWEDISH F 16 k47g: 45/04 PATENT AND REGISTRATION AGENCY Ans. 10 763/1962 was received on 8/10 1962 issued on 18/10 196 G M BERGSTRAND, NA.SBYPARK Device for maneuvering ay a valve spindle e.d.

Vid anvandning av pneumatiska eller hydrauliska installationer for utfOrande av olika arbetsmoment inom industrien ar det ofta nOdvandigt att omvandla en linear rOrelse till en rotationsrOrelse, exempelvis da en ventilkran skall oppnas och stangas med hj alp av en tryckmedelsdriven cylinder. En sedan Hinge kand anordning for utfOrande av sadana operationer bestar av en pneumatisk eller hydraulisk cylinder med en kolv, vars kolvstang Or utbildad med en langsgaende kuggrad, som är i ingrepp med ett for koppling till en spin-del avsett roterbart kugghjul. When using pneumatic or hydraulic installations to perform various operations in the industry, it is often necessary to convert a linear motion into a rotational motion, for example when a valve valve is to be opened and closed by means of a pressure medium driven cylinder. A sedan Hinge kand device for performing such operations consists of a pneumatic or hydraulic cylinder with a piston, the piston rod Or of which is formed with a longitudinal tooth degree, which engages with a rotatable gear intended for coupling to a spin part.

For att underlatta monteringen av en sadan manovreringsanordning bOr kugghjulets axel vara fOrsedd med ett kopplingsorgan, som samverkar med ett motsvarande kopplingsorgan pa den ventilspindel, som skall manovreras. Det är darvid onskvart att ordna sa, att ventilspindeln befinner sig i sitt stangande vridningslage, samtidigt som kolven med den kugghjulet vridande kuggstangen befinner sig sitt motsvarande andlage, men om detta skall vara mOjligt, maste de ifragavarande kopplingsorganens vridningslagen vara installda med hansyn hartill. En omstallning av sjalva kopplingsorganen fran fall till fall Or emellertid av praktiska orsaker ej genomforbar. In order to facilitate the mounting of such a maneuvering device, the shaft of the gear should be provided with a coupling member which cooperates with a corresponding coupling member on the valve stem to be maneuvered. It is then unreasonable to arrange that the valve stem is in its rotating stroke, while the piston with the gear rotating the rack is in its corresponding bearing, but if this is to be possible, the rotating laws of the coupling means in question must be installed with his eyes. A reorganization of the coupling means themselves from case to case Or, however, for practical reasons not feasible.

Enligt uppfinningen erhalles en enkel losfling pa detta problem darigenom, att cylindern Or sammansatt av tva anddelar, som frail motsatta hall aro delvis inskjutna i en had& avpassad, genomgaende urborrning i ett mellanstycke, i vilket en kugghjulet uppbarande, med kopplingsorgan fOrsedd axel ar lagrad, varvid eylinderns hada anddelar Oro axiellt forskjutbara relativt mellanstycket samt fixerbara i olika forskjutningslagen. Genom en sadan anordning Or alltsa mojligt att installa kugghjulsaxeln med dess kopplingsorgan i ett bestamt, mot ventilspindelns kopp- Dupl. kl. 60: 30; 88 b: 1 lingsorgan svarande vridningslage, da kolven befinner sig i ena andlaget. According to the invention, a simple solution to this problem is obtained in that the cylinder Or composed of two parts, which are opposite opposite halls are partially inserted into a hollow & adapted, continuous bore in an intermediate piece, in which a gear bearing, with coupling means provided shaft is mounted, wherein the cylindrical parts of the cylinder are axially displaceable relative to the intermediate piece and fixable in different displacement layers. By means of such a device Or it is thus possible to install the gear shaft with its coupling means in a specific, against the valve stem coupling- Dupl. at 60:30; 88 b: 1 lingsorgan corresponding to torsional stroke, as the piston is in one abutment.

Anordningen enligt uppfinningen beskrives narmare under hanvisning till bifogade ritningar, dar fig. 1 visar en langdsektion genom en utforingsform. Fig. 2 visar en tvarsektion langs linjeni fig. 1, och fig. 3 visar en delvy av anordningen sedd fran sidan i ett plan, som bildar 90° vinkel med planet i fig. 1. The device according to the invention is described in more detail with reference to the accompanying drawings, in which Fig. 1 shows a longitudinal section through an embodiment. Fig. 2 shows a cross section along the line in Fig. 1, and Fig. 3 shows a partial view of the device seen from the side in a plane forming a 90 ° angle with the plane in Fig. 1.

Den generellt med 4 betecknade eylindern är sammansatt av tva axiellt i linje placerade rOrdelar 5, 6, som hopkopplats med hjalp av ett utvandigt i huvudsak kubiskt mellanstyeke 7. ROrandarna Oro darvid infOrda i en i mellanstycket anordnad, genomgaende urborming, dar de stOdja mot ett mellanliggande, lost, cylindriskt foder 8. Gavelstycket 9, 10 med gangade hal 11 resp. 12 f8r anslutning av tryckmediumledningar aro pasatta pa rorens 5 resp. 6 ytterandar, och den salunda bildade, slutna cylindern sammanhalles genom att vardera gavelstycket Or fastspant vid mellanstycket 7 med hjalp av dragbultar 13 (fig. 2). Varje bult passerar darvid genom ett ogangat hal i gavelstycket, och dess ena gangade ande Or inskruvad i ett gangat hOl 14 i mellanstycket, medan en mutter 15 Or pastkruvad pa den fran gavelstycket utskjutan de bultan den. The cylinder, generally denoted by 4, is composed of two axially aligned pipe parts 5, 6, which are connected by means of an external substantially cubic intermediate piece 7. The pipe edges are thereby inserted into a continuous bore arranged in the intermediate piece, where they abut against a intermediate, lost, cylindrical lining 8. Gable piece 9, 10 with aisle hall 11 resp. 12 for connection of pressure medium lines are fitted on the pipes 5 and 5, respectively. 6 outer ends, and the thus formed, closed cylinder is held together by each clamping end piece Or at the intermediate piece 7 by means of tension bolts 13 (Fig. 2). Each bolt then passes through an unpaved hole in the end piece, and its one threaded spirit is screwed into a threaded hole 14 in the intermediate piece, while a nut 15 is screwed onto the bolt projecting from the end piece.

Cylindern 4 innehaller tva med nagot spelrum i roren 5, 6 forskjutbara kolvar 16, 17, som Oro fast f6rbundna med varandra medelst en kolvstang 18. Vardera kolven innehaller ett periferiellt spar 19, i vilket en mot cylinderns insida ingripande tatningsring, exempelvis en 0-ring 20, Or inlagd. Kolvstangen 18 har samma diameter som kolvarna 16, 17 men Or glidbart styrd av fodret 8, som liar en harfor avpassad, nagot mindre diameter On roren 5, 6. Den i ovrigt runda kolvstOngen Or fOrsedd med tva langsgende, diametralt mot- 2 staende avfasningar, varigenom tva parallella sidoytor 21 uppkomma (se aven fig. 3), och vinkelratt mot dessa sidoytor är en stor, genomgaende urtagning 22 anordnad utefter i det narmaste stangens hela langd. Urtagningens ena langsgaende sida är utformad med en kuggrad 23, och ett med denna ingripande, i urtagningen 22 insatt kugghjul 24 är fast vid en axel 25, som stracker sig genom en tvargaende urborrning i mellanstycket 7. Det cylindriska fodret 8 i mellanstycket har givetvis motsvarande, diametralt motstaende oppningar, som dock aro nagot st6rre for att mojligOra en i det foljande nfirmare beskriven axiell forskjutning av fodret relativt mellanstycket och axeln. Axeln är lagrad i tva fran var sin sida i urbormingen inkilade bussningar 26 (fig. 3), och de utanfor dessa utskjutande axelandarna kunna vara forsedda med lampliga kopplingsorgan, exempelvis kilspar med kilar 27, for att valfritt kopplas till en roterbar maskindel och ev. till en visare, som 'pa en skala anger vridningsvinkeln. The cylinder 4 contains two displaceable pistons 16, 17 with some clearance in the tubes 5, 6, which are fixedly connected to each other by means of a piston rod 18. Each piston contains a peripheral groove 19, in which a sealing ring engaging against the inside of the cylinder, for example an 0- ring 20, Or inlaid. The piston rod 18 has the same diameter as the pistons 16, 17 but is slidably guided by the liner 8, which has a slightly adapted, slightly smaller diameter on the tubes 5, 6. The otherwise round piston rod Or is provided with two longitudinal, diametrically opposed chamfers. , whereby two parallel side surfaces 21 arise (see also Fig. 3), and at right angles to these side surfaces a large, through-going recess 22 is arranged along the entire length of the nearest rod. One longitudinal side of the recess is formed with a degree of gear 23, and a gear 24 inserted therewith, inserted into the recess 22, is fixed to a shaft 25, which extends through a transverse bore in the intermediate piece 7. The cylindrical liner 8 in the intermediate piece of course has the corresponding , diametrically opposed openings, which, however, are somewhat larger in order to allow an axial displacement of the liner relative to the intermediate piece and the shaft described in the following. The shaft is mounted in two bushings 26 wedged from each side in the bore (Fig. 3), and the shaft lands projecting outside these can be provided with suitable coupling means, for example wedge pairs with wedges 27, to be optionally coupled to a rotatable machine part and possibly to a pointer, which 'on a scale indicates the angle of rotation.

AxeIns 25 geometriska axel är fOretradesvis belagen i samma plan som cylinderns 4 centrumlinje, och urtagningen 22 samt kugghjulet 24 aro givetvis dimensionerade sà i forhaliande till varandra, att kugghjulet med nagot spelrum gar fritt Iran den mot kuggraden vanda langsidan i urtagningen. The geometric axis of the shaft 25 is preferably located in the same plane as the center line of the cylinder 4, and the recess 22 and the gear 24 are of course dimensioned in relation to each other so that the gear with some clearance moves freely along the tooth side of the recess.

For montering av cylindern pa dess plats,ar mellanstycket 7 lampligen forsett med bulthal 28, som passa till motsvarande hal i en konsol eller fastplatta: Det kan harvid forutsattas, att 'fastorganen aro placerade sit, att axeltappen 25 blir exakt centrerad 1 forhallande till den 'roterbara del, som skall drives, men daremot kan man ofta ej undvika ett felaktigt vridningslage mellan axeltappens 25 och den drivna delens kopplingsorgan. Exempelvis en roterbar ventilspindel maste vid hopkopplingen vara vriden till stangande lage, samtidigf som cylinderns kolvslid befinner sig I det andldge, frau vilket det vid forskjutning vrider spindeln i oppnande riktning. Om axeltappens 25 och ventilspindelns kilspar ej skulle ligga i linje med varandra i dessa utgangslagen, kan axeltappen 25 vridas en erfuderlig vinkel genom att hela cylindern 4 fOrskjutes axiellt i forhallande till mellanstycket 7. Denna fOrskjutning kan genomforas pa ett enkelt salt tack vare den beskrivna cylinderkonstruktionen, i det att de genom det ena gavelstycket insatta bultarna 13 urskruvas nagot ur mellanstycket 7, medan bultarna vid den andra cylinderanden i motsvarande grad inskruvas. Harvid forskjutes alitsit liven kolvsliden under vridning av det med kuggraden 23 ingripande kugghjulet 24. For mounting the cylinder in its place, the intermediate piece 7 is suitably provided with a bolt hall 28, which fits into the corresponding hall in a bracket or fixed plate: It can then be assumed that the fastening means are placed there, that the shaft pin 25 is exactly centered in relation to the rotatable part to be driven, but on the other hand an incorrect rotational stroke between the shaft pin 25 and the coupling means of the driven part 25 can often not be avoided. For example, a rotatable valve spindle must be rotated in the coupling bearing during coupling, at the same time as the piston slide of the cylinder is in the direction from which it rotates the spindle in the opening direction when displaced. If the wedge pairs of the shaft journal 25 and the valve stem were not in line with each other in these starting layers, the shaft journal 25 can be rotated at a required angle by displacing the entire cylinder 4 axially relative to the intermediate piece 7. This displacement can be carried out on a single salt thanks to the described cylinder construction , in that the bolts 13 inserted through one end piece are unscrewed slightly from the intermediate piece 7, while the bolts at the other cylinder end are screwed in to a corresponding degree. In this case, the alitsit life of the piston slide is displaced while turning the gear 24 engaging with the gear degree 23.

Claims

A patent claim: A device for maneuvering a valve spindle, consisting of a pneumatic or hydraulic cylinder with a piston, the piston rod of which is formed with a longitudinal tooth, which engages a rotatable gear intended for coupling to the spindle, characterized in that the cylinder is composed of two parts (5, 9 and 6, 10, respectively), which from opposite halls are partially inserted into a suitable, continuous bore in an intermediate piece (7), in which a gear (24) supporting, with coupling means ( 27) provided shaft (25) dr bearing, wherein the had parts of the cylinder are axially displaceable relative to the intermediate piece (7) and fixable in different displacement layers, in the event that the gear shaft (25) with dosing coupling means can be installed in a specific rotation layer, as the piston (16 or 17) is in one of the facilities. Request Publications: Patent Papers from Great Britain 8,948 for 1913.