DK162118B - DAM VALVE WITH INTERNAL ELASTOMER COATING - Google Patents

DAM VALVE WITH INTERNAL ELASTOMER COATING Download PDF

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Publication number
DK162118B
DK162118B DK063890A DK63890A DK162118B DK 162118 B DK162118 B DK 162118B DK 063890 A DK063890 A DK 063890A DK 63890 A DK63890 A DK 63890A DK 162118 B DK162118 B DK 162118B
Authority
DK
Denmark
Prior art keywords
housing
shaft
bearings
flap disc
piece
Prior art date
Application number
DK063890A
Other languages
Danish (da)
Other versions
DK63890D0 (en
DK63890A (en
DK162118C (en
Inventor
Ludwig Bachmann
Heinz Juergen Ruckert
Original Assignee
Klein Schanzlin & Becker Ag
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 Klein Schanzlin & Becker Ag filed Critical Klein Schanzlin & Becker Ag
Publication of DK63890D0 publication Critical patent/DK63890D0/en
Publication of DK63890A publication Critical patent/DK63890A/en
Publication of DK162118B publication Critical patent/DK162118B/en
Application granted granted Critical
Publication of DK162118C publication Critical patent/DK162118C/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2268—Sealing means for the axis of rotation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Control Of Combustion (AREA)
  • Magnetically Actuated Valves (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

1. Shutoff flap, comprising one one-piece metallic housing (1), the entire interior area of which is provided with an elastomer coating (13), a centrally supported metallic flap disc (5), which is within a plastic coating (6), a one-piece actuation shaft (7), which is inserted through the flap disc (5), is connected to the flap disc (5) by means of a drive type fastening (11) and is partly surrounded by the elastomer coating (15) of the housing, an upper and a lower shaft bearing (14, 15) which are located in the housing and serve to accomodate the actuation shaft (7) ; identified by the fact that the flap disc (5) is designed in one piece, that the central metallic piece (8) of the flap disc (5) is cut out in the area of the actuation shaft (7), thus leaving two opposite bearing points (9, 10) in the circumference area of the flap disc (5) for accomodation of the actuation shaft ; that, during the coating process of the flap disc (5), the cutout (8) is completely filled with the plastic (6), and that in the area of the two shaft bearings (14, 15) passage ports are (17) provided in the housing for fluid elastomer ; these ports running in the direction of the axis of the acutation shaft (7) so that the fluid elastomer flows around the shaft bearings (14, 15) during the coating process of the housing (1) and covers the shaft bearings.

Description

iin

DK 162118 BDK 162118 B

Opfindelsen vedrører en afspærringsventil af den i hovedkravets indledende del omhandlede type.The invention relates to a shut-off valve of the type referred to in the preamble of the main claim.

Centriske afspærringsventiler, hvor ventilspjældets drejeakse ligger i planet for ventilhusets tæt-5 ningsflade, finder øget anvendelse, da der ved brug af en elastomerbeklædning kan opnås en pålidelig tætningsfunktion. Plast udviser i almindelighed høj bestandighed over for mange gennemstrømningsmedier og beskytter således de metalliske dele godt mod korrosion og til-10 svarende påvirkninger.Centric shut-off valves, in which the pivot axis of the valve damper lies in the plane of the sealing surface of the valve housing, find increased use, as a reliable sealing function can be achieved by the use of an elastomer casing. Plastics generally exhibit high resistance to many flow media, thus protecting the metallic parts well against corrosion and corresponding stresses.

Pra DE-A-21 60 357 kendes en konstruktion, ved hvilken af plast bestående halvfabrikata indlægges i en form for under indvirkning af tryk og temperatur samt yderligere indsprøjtet plast, at danne en foring i ét 15 stykke til et oversprøj tet plast-afspærringsventilhus.Pra DE-A-21 60 357 discloses a structure in which plastic semi-finished products are installed in a form of forming a 15-piece liner for an extruded plastic shut-off valve housing under the influence of pressure and temperature as well as further injected plastic.

DE-A-15 75 457 viser en med en gummikappe forsynet lejebøsning af aluminiumoxid. Det gummielastiske overtræk skal beskytte den overfor slag, stød og varme-spændinger følsomme bøsning. En sådan bøsning kan på 20 grund af stor hårdhed samt højt elasticitetsmodul ikke indpresses direkte i boringer i huse.DE-A-15 75 457 discloses an aluminum oxide bearing bushing fitted with a rubber jacket. The rubber-elastic coating is intended to protect it against shock, shock and heat stress sensitive bushing. Such a bush cannot be squeezed directly into the bores of houses due to high hardness and high elastic modulus.

Opfindelsen tager sigte på at frembringe en afspærringsventil, der er let at beklæde med plast, har gode strømningsforhold, og som formår at optage store 25 lejebelastninger pålideligt.The invention has for its object to provide a shut-off valve which is easy to cover with plastic, has good flow conditions and is able to reliably absorb large bearing loads.

Dette løses på den i hovedkravets kendetegnende del angivne måde. De i huset i området ved akslens lejer anbragte gennemgående åbninger har den fordel, at det herigennem er muligt at foretage en pålidelig be-30 lægning af hele husets indre. Før belægningen udføres, placeres lejerne i huset og holdes på plads af en til akslen svarende dorn. Under belægningsprocessen kan den flydende elastomer uhindret strømme forbi lejerne og fordele sig jævnt i husets indre. Samtidig forbindes 35 lejerne fast med huset.This is solved in the manner specified in the characterizing part of the main claim. The through openings arranged in the housing in the region of the bearings of the shaft have the advantage that it is thereby possible to make a reliable coating of the entire interior of the housing. Prior to coating, the bearings are placed in the housing and held in place by a mandrel corresponding to the shaft. During the coating process, the liquid elastomer can flow freely past the bearings and distribute evenly within the interior of the housing. At the same time, the 35 bearings are permanently connected to the housing.

I en udførelsesform for opfindelsen er ydersiderne af aksellejerne og/eller boringerne i huset til optagelse af disse koniske.In one embodiment of the invention, the outer faces of the shaft bearings and / or bores in the housing for accommodating these are tapered.

DK 162118 BDK 162118 B

22

Denne form kan eksempelvis støbes sammen med huset og har den fordel, at lejerne ved belægningsprocessen med en passende dorn presses ind i boringerne og her holdes på plads af plasten. På grund af boringens 5 koniske form finder der en hensigtsmæssig liniekontakt sted mellem huset og lejerne, således at en fra væsketrykket stammende tværkraft på akslen overføres til huset.This mold can, for example, be molded together with the housing and has the advantage that the bearings are pressed into the bores during the coating process with a suitable mandrel and here held in place by the plastic. Due to the conical shape of the bore 5, an appropriate line contact takes place between the housing and the bearings so that a transverse force arising from the fluid pressure on the shaft is transferred to the housing.

I en anden udførelsesform for opfindelsen, hvor 10 lejerne er af keramik, udgør disse lejer dele af den til husets fremstilling nødvendige kerne og indstøbes i huset. Keramiklejerne er i stand til at modstå de ved husets støbning forekommende temperaturer og kræver ingen yderligere bearbejdning. Den egentlige lejeboring 15 er fyldt med kernesand, der efter støbningen udslås og frigiver boringen.In another embodiment of the invention, wherein the 10 bearings are of ceramic, these bearings form parts of the core necessary for the manufacture of the housing and are molded into the housing. The ceramic bearings are able to withstand the temperatures encountered in the casting and require no further machining. The actual bearing bore 15 is filled with core sand which, after casting, is knocked out and releases the bore.

Et eksempel på en udførelsesform for opfindelsen er vist på tegningen, hvor fig. 1 og 2 henholdsvis viser koniske boringer 20 i huset og konisk udførte lejer, og fig. 3 et snit gennem den i huset udformede-hals, der bærer lejerne.An example of an embodiment of the invention is shown in the drawing, in which fig. 1 and 2 respectively show tapered bores 20 in the housing and tapered bearings, and FIG. 3 is a section through the neck formed in the housing carrying the bearings.

Fig. 1 viser et afspærringsventilhus l's hals 2, der ved lejet 14 har en konisk boring 18, som i 25 nærheden af sit mindste tværsnit 19 sikrer en linieberøring mellem huset 1 og lejet 14. I den overfor halsen 2 liggende husdel er yderligere et leje indrettet på tilsvarende måde.FIG. 1 shows the neck 2 of a shut-off valve housing 1, which has a tapered bore 18 at the bearing 14 which, in the vicinity of its smallest cross-section 19, ensures a line contact between the housing 1 and the bearing 14. In the housing portion opposite the neck 2, a further bearing is arranged on similar way.

Fig. 2 viser et udvendigt konisk leje 14, der 30 med sin største diameter 20 har liniekontakt med huset 1.FIG. 2 shows an exterior tapered bearing 14 having 30 of its largest diameter 20 having line contact with the housing 1.

Fig. 3 svarer til snittet III-III i fig. 2 og viser de gennemgående åbninger 17, der forløber ved siden af de to lejer 14 i huset. På grund af disse 35 åbninger 17 kan den flydende elastomer under belægningen af huset uhindret strømme forbi lejerne 14 ogFIG. 3 corresponds to the section III-III in FIG. 2 and showing the through openings 17 extending adjacent the two bearings 14 in the housing. Because of these 35 openings 17, during the coating of the housing, the liquid elastomer can flow freely past the bearings 14 and

DK 162118 BDK 162118 B

3 fuldstændig omgive disse. De gennemgående åbninger er arrangeret vinkelret på strøinningsretningen, så den via spjældet kommende tværkraft på pålidelig måde kan overføres til huset.3 completely surround these. The through openings are arranged perpendicular to the direction of flow, so that the transverse force of the damper can be reliably transferred to the housing.

Claims (3)

4 DK 162118B4 DK 162118B 1. Afspærringsventil med et metallisk ventilhus (1) i ét stykke, et centralt anbragt, metallisk ventilspjæld samt en spjældaksel, der er udført som en ind-stikskonstruktion og via en medbringerforbindelse for- 5 bundet med spjældet, hvor de for strømning udsatte dele af huset, spjældet og akslen er beklædt med plast, kendetegnet ved, at der ved siden af akslens lejer (14), vinkelret på strømningsretningen og parallelt med akslen forløbende, er tilvejebragt af lejerne 10 begrænsede, gennemgående åbninger (17).A shut-off valve with a one-piece metallic valve housing (1), a centrally located metallic valve damper and a damper shaft, which is designed as a plug-in structure and via a carrier connection connected to the damper, where the parts exposed to flow the housing, the damper and the shaft are lined with plastic, characterized in that, through the bearings 10, limited openings (17) are provided by the bearings 10 perpendicular to the direction of flow and running parallel to the shaft. 2. Ventil ifølge krav 1, kendetegnet ved, at ydersiderne af spjældakslens lejer (14), og/ eller boringerne (18), i huset til optagelse af disse, er koniske.Valve according to claim 1, characterized in that the outer sides of the damper shaft bearings (14) and / or the bores (18) in the housing for receiving them are tapered. 3. Ventil ifølge krav 1 og 2, kendeteg net ved, at aksellejerne er af et keramisk materiale, at de udgør dele af den til fremstilling af huset nødvendige kerne og indstøbes i huset.Valve according to claims 1 and 2, characterized in that the shaft bearings are of a ceramic material, that they form parts of the core necessary for the manufacture of the housing and are embedded in the housing.
DK063890A 1983-01-11 1990-03-12 DAM VALVE WITH INTERNAL ELASTOMER COATING DK162118C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3300635 1983-01-11
DE3300635A DE3300635C2 (en) 1983-01-11 1983-01-11 Centric butterfly valve

Publications (4)

Publication Number Publication Date
DK63890D0 DK63890D0 (en) 1990-03-12
DK63890A DK63890A (en) 1990-03-12
DK162118B true DK162118B (en) 1991-09-16
DK162118C DK162118C (en) 1992-02-17

Family

ID=6188013

Family Applications (2)

Application Number Title Priority Date Filing Date
DK589983A DK160573C (en) 1983-01-11 1983-12-21 DAM VALVE WITH INTERNAL ELASTOMER COATING
DK063890A DK162118C (en) 1983-01-11 1990-03-12 DAM VALVE WITH INTERNAL ELASTOMER COATING

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DK589983A DK160573C (en) 1983-01-11 1983-12-21 DAM VALVE WITH INTERNAL ELASTOMER COATING

Country Status (4)

Country Link
EP (1) EP0113875B1 (en)
AT (1) ATE23732T1 (en)
DE (1) DE3300635C2 (en)
DK (2) DK160573C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2692622B1 (en) * 1992-06-17 1994-09-16 Solex Rotary throttle member for internal combustion engine power supply installation and throttle body including application.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290395B (en) * 1962-12-06 1969-03-06 Mosites George Alvin Throttle valve
GB1210401A (en) * 1967-01-31 1970-10-28 Boving & Co Ltd Improvements in and relating to butterfly valves
DE1575457A1 (en) * 1967-02-10 1970-01-15 Feldmuehle Ag bearings
US3750698A (en) * 1970-07-16 1973-08-07 Xerox Corp Coated valving member
GB1378493A (en) * 1970-12-08 1974-12-27 Serck Industries Ltd Lined bodies for fluid control valves
FR2255522B1 (en) * 1973-12-19 1982-11-12 Amri
CH594838A5 (en) * 1975-06-17 1978-01-31 Lorentis Ag
US4146206A (en) * 1977-03-11 1979-03-27 Garlock Inc. Valve closure member thrust and load compensator

Also Published As

Publication number Publication date
DK63890D0 (en) 1990-03-12
DK63890A (en) 1990-03-12
DK160573B (en) 1991-03-25
EP0113875B1 (en) 1986-11-20
DK589983A (en) 1984-07-12
DK162118C (en) 1992-02-17
DK160573C (en) 1991-09-09
ATE23732T1 (en) 1986-12-15
DE3300635A1 (en) 1984-07-12
EP0113875A1 (en) 1984-07-25
DK589983D0 (en) 1983-12-21
DE3300635C2 (en) 1986-10-02

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