NO170360B - TURNING PROTECTION FOR A SLIDING SEAL - Google Patents
TURNING PROTECTION FOR A SLIDING SEAL Download PDFInfo
- Publication number
- NO170360B NO170360B NO883515A NO883515A NO170360B NO 170360 B NO170360 B NO 170360B NO 883515 A NO883515 A NO 883515A NO 883515 A NO883515 A NO 883515A NO 170360 B NO170360 B NO 170360B
- Authority
- NO
- Norway
- Prior art keywords
- housing
- rotation
- ring
- counter ring
- hooks
- Prior art date
Links
- 238000004804 winding Methods 0.000 claims description 11
- 230000010355 oscillation Effects 0.000 abstract description 3
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
Landscapes
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Braking Arrangements (AREA)
- Fuses (AREA)
- Special Wing (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Mechanical Operated Clutches (AREA)
- Springs (AREA)
- Photoreceptors In Electrophotography (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Mechanical Sealing (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Oppfinnelsen angår en dreiesikring ifølge innledningen til krav 1. The invention relates to a rotation lock according to the introduction to claim 1.
En slik dreiesikring er kjent fra DE-OS 3543160. Den består av en i en radialboring i huset innslått stift av et hardmateriale, hvis i radiell retning innover fremstikkende ende griper inn i en radialutsparing i motringen for å forhindre relative dreininger av disse. Levetiden på slike dreiesikringer er ikke tilstrekkelig. De er ofte årsak til et på grunn av brudd forårsaket utfall av motringen, og dermed av glideringstetningen. Such a rotation lock is known from DE-OS 3543160. It consists of a pin made of a hard material inserted in a radial bore in the housing, whose radially inward projecting end engages in a radial recess in the counter ring to prevent relative rotation of these. The lifetime of such anti-rotational devices is not sufficient. They are often the cause of failure of the counter ring, and thus of the sliding seal, due to breakage.
Fra DE-OS 3 225 101 er det kjent en annen type dreiesikring, anvendt på en glideringstetning, der dreiesikringen som består av en spiralfjær med to kroker, er plassert mellom et hus og en tetningsring. Dreiesikringens fuksjon er å forhindre samrotasjon av tetningsringen med glideringen. Dreiesikringen som er kjent fra denne publikasjonen, er bare egnet for brukstilfellet der det ikke forekommer noe skifte av dreieretningen. From DE-OS 3 225 101 another type of anti-rotation device is known, applied to a sliding seal, where the anti-rotation device consisting of a spiral spring with two hooks is placed between a housing and a sealing ring. The anti-rotation function is to prevent co-rotation of the sealing ring with the sliding ring. The rotation lock known from this publication is only suitable for the use case where no change in the direction of rotation occurs.
Oppfinnelsen går ut på å utvikle en dreiesikring til bruk mellom motringen og huset i en glideringstetning, ved hjelp av hvilken slike ulemper skal unngås. Dreiesikringen skal dessuten være billig og enkel å montere. The invention is to develop a rotation lock for use between the counter ring and the housing in a sliding seal, with the help of which such disadvantages are to be avoided. The anti-rotation must also be cheap and easy to install.
Denne oppgaven løses ifølge oppfinnelsen ved hjelp av en dreiesikring av den innledningsvis nevnte art som har de karakteristiske trekk som fremgår av krav 1. Fordelaktige utførelsesformer fremgår av de uselvstendige kravene. According to the invention, this task is solved by means of a rotation lock of the kind mentioned at the outset which has the characteristic features that appear in claim 1. Advantageous embodiments appear in the non-independent claims.
I dreiesikringen ifølge oppfinnelsen består mellomlegemet av en fjær som er utformet og innrettet slik at motringens driftsbetingede dreiesvingninger oppfanges fjærende av huset. Den kan således ikke lenger føre til en utilsiktet ødeleggelse av mellomlegemet eller motringen. Det har vist seg særlig hensiktsmessig når fjæren er utformet som en skrue-eller spiralfjær. Valget av den ene eller andre fjærvarianten bestemmes særlig i hvert enkelt tilfelle av plassforholdene. Dessuten sikrer begge fjærvariantene en relativt stor vinkelbevegelighet på motringen i forhold til det avstøttende huset, hvorved belastningstopper holdes borte fra de delene som overfører dreiemomentet og kan således ikke bevirke ødeleggelse av disse delene. In the anti-rotation device according to the invention, the intermediate body consists of a spring which is designed and arranged so that the counter ring's operational rotational oscillations are spring-loaded by the housing. It can thus no longer lead to an accidental destruction of the intermediate body or the counter ring. It has proven particularly appropriate when the spring is designed as a screw or spiral spring. The choice of one or the other spring variant is particularly determined in each individual case by the space conditions. In addition, both spring variants ensure a relatively large angular movement of the counter-ring in relation to the supporting housing, whereby load peaks are kept away from the parts that transmit the torque and thus cannot cause destruction of these parts.
De skrue- eller spiralfjærene som kommer til anvendelse kan omgripe motringen i et første avsnitt med i det minste en elastisk påpresset vikling, idet de tilpressings- og driftsbetingede belastningsretninger på viklingen er innbyrdes identiske. Noen relativ forskyvning i viklingens lagring mot motringens overflate er ikke ventet ved dreiende aksel, da denne er overlagret av sterke svingninger. Dessuten gjør en hensiktsmessig kraftsluttende forbindelse mellom den påkjente viklingen i skrue- resp. spiralfjæren og motringen det mulig å foreta radialutsparingen i den sistnevnte. Den mekaniske motstandskraften på motringen får derved en tydelig forbedring. The screw or spiral springs that are used can surround the counter ring in a first section with at least one elastically pressed winding, the pressing and operating load directions on the winding being mutually identical. Any relative displacement in the bearing of the winding against the surface of the counter ring is not expected in the case of a rotating shaft, as this is superimposed by strong oscillations. In addition, a suitable force-closing connection between the stressed winding in the screw or the spiral spring and the counter ring it is possible to make the radial recess in the latter. The mechanical resistance on the counter ring is thereby clearly improved.
For brukstilfeller der det er vekslende dreieretning er det derimot hensiktsmessig med en utførelse der den mot den ytre omkretsen på motringen anliggende viklingen er forlenget i begge ender i retning mot huset, og begge forsynt med kroker som kan hukes inn bak radialflater på huset. De to radial-flatene på huset må i dette tilfellet være tilpasset de to krokene, slik at uavhengig av dreieretning må hele tiden en krok være strekkbelastet og den andre ubelastet. Disse betingelser kan lett oppfylles ved anbringelse av radialflåtene i relativt store utsparinger i huset. For use cases where there is an alternating direction of rotation, it is, on the other hand, appropriate to have a design where the winding adjacent to the outer circumference of the counter ring is extended at both ends in the direction towards the housing, and both are provided with hooks that can be hooked in behind the radial surfaces of the housing. In this case, the two radial surfaces of the housing must be adapted to the two hooks, so that regardless of the direction of rotation, one hook must always be tension-loaded and the other unloaded. These conditions can easily be met by placing the radial rafts in relatively large recesses in the house.
Gjenstanden for foreliggende opfinnelse skal i det følgende forklares nærmere under henvisning til tegningene, der fig. 1 viser en dreiesikring ifølge oppfinnelsen i innbygget tilstand og sett forfra, og The object of the present invention will be explained in more detail below with reference to the drawings, where fig. 1 shows a rotation lock according to the invention in the built-in state and seen from the front, and
fig. 2 viser dreiesikringen ifølge fig. 1 i lengdesnitt. fig. 2 shows the rotation lock according to fig. 1 in longitudinal section.
Den i fig. 1 viste dreiesikringen tjener til å hindre relativ dreiing av motringen 1 i forhold til det omsluttende huset 2. Dreieringen består i det vesentlige av en skruefjær som omgriper den sylindriske ytterflaten på motringen 1 med 1,5 omdreining elastisk påpresset vikling. Viklingen er avsluttet i begge ender i radialt utstikkende kroker eller haker 4 av hvilke den nedre under virkning av det dreiemoment som skal overføres, og som er antydet med en pil, kommer til anlegg mot radialf laten 5 på huset og er strekkbelastet. På-pressingen av viklingen som ligger an mot yttersiden av motringen økes derved. The one in fig. 1, the rotation lock shown serves to prevent relative rotation of the counter ring 1 in relation to the enclosing housing 2. The rotation ring essentially consists of a coil spring that grips the cylindrical outer surface of the counter ring 1 with 1.5 turns of elastically pressed winding. The winding is terminated at both ends in radially protruding hooks or hooks 4 of which the lower one under the effect of the torque to be transmitted, and which is indicated by an arrow, comes into contact with the radial surface 5 of the housing and is tensile loaded. The pressing on of the winding which abuts the outer side of the counter ring is thereby increased.
Ved veksling av dreieretningen kommer den øvre kroken 4 til anlegg mot den tilordnede radialflaten 5 på huset, mens den nedre kroken blir avlastet. Også i dette tilfellet skjer i avhengighet av størrelsen på det dreiemomentet som skal overføres en tiltagende påpressing av skruefjærens vikling som ligger an mot motringen. Det er således ikke noen fare for noen relativ forskyvning mellom den nevnte viklingen og motringens utside, og er helt uavhengig av dreieretningen. When changing the direction of rotation, the upper hook 4 comes into contact with the assigned radial surface 5 on the housing, while the lower hook is relieved. Also in this case, depending on the size of the torque to be transmitted, an increasing pressure is applied to the winding of the coil spring which rests against the counter ring. There is thus no danger of any relative displacement between the said winding and the outside of the counter ring, and is completely independent of the direction of rotation.
På fig. 2 er lokaliseringen av skruefjaeren vist. Det vil sees at de i radiell retning utover stikkende krokene 4 både oppe og nede er lagret i aksielt åpne utsparinger i huset 2. Skruefjaeren kan derfor monteres meget enkelt og erstattes ved behov. Den sikrer derved en helt nødvendig fastlegging av motringen 1 i huset 2. I tilfelle nødvendig vedlikeholds-arbeide, er dette en stor fordel. In fig. 2, the location of the coil spring is shown. It will be seen that in the radial direction beyond the protruding hooks 4 both above and below they are stored in axially open recesses in the housing 2. The coil spring can therefore be mounted very easily and replaced if necessary. It thereby ensures an absolutely necessary fixation of the counter ring 1 in the housing 2. In case of necessary maintenance work, this is a great advantage.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873733970 DE3733970A1 (en) | 1987-10-08 | 1987-10-08 | ANTI-TWISTING |
Publications (4)
Publication Number | Publication Date |
---|---|
NO883515D0 NO883515D0 (en) | 1988-08-08 |
NO883515L NO883515L (en) | 1989-04-10 |
NO170360B true NO170360B (en) | 1992-06-29 |
NO170360C NO170360C (en) | 1992-10-07 |
Family
ID=6337848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO883515A NO170360C (en) | 1987-10-08 | 1988-08-08 | TURNING PROTECTION FOR A SLIDING SEAL |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0310770B1 (en) |
AT (1) | ATE61652T1 (en) |
DE (2) | DE3733970A1 (en) |
ES (1) | ES2021120B3 (en) |
GR (1) | GR3001820T3 (en) |
NO (1) | NO170360C (en) |
PT (1) | PT88690B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3926545A1 (en) * | 1989-08-11 | 1991-02-14 | Klein Schanzlin & Becker Ag | FUSE FOR MECHANICAL SEALS |
DE9107167U1 (en) * | 1991-06-11 | 1991-08-22 | Feodor Burgmann Dichtungswerke GmbH & Co, 82515 Wolfratshausen | Mechanical seal arrangement |
DE9114432U1 (en) * | 1991-11-19 | 1993-03-25 | Feodor Burgmann Dichtungswerke Gmbh & Co, 8190 Wolfratshausen | Mechanical seal |
CN101038035A (en) * | 2006-12-12 | 2007-09-19 | 李採云 | Sleeve type combined sealing component and sealing method thereof |
ITTO20100568A1 (en) | 2010-07-01 | 2012-01-02 | Fabriano Securities Srl | SYSTEM FOR MAGNETIC CODIFICATION THROUGH STORAGE OF MAGNETIC AREAS MADE BY AT LEAST TWO TYPES OF MAGNETIC INKS, WITH DIFFERENT COERCITIVITY, DEPOSITED IN AT LEAST PARTIALLY OVERLAPPED TO BE USED FOR DOCUMENT SAFETY WIRES |
DE102018106763A1 (en) | 2018-03-22 | 2019-09-26 | Schaeffler Technologies AG & Co. KG | actuator |
DE102018130228B3 (en) | 2018-11-29 | 2020-02-20 | Schaeffler Technologies AG & Co. KG | Actuator for rear axle steering of a vehicle and rear axle steering with such an actuator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735701A (en) * | 1956-02-21 | Seal construction | ||
DE863883C (en) * | 1943-03-28 | 1953-01-22 | Josef Dr-Ing Beier | Double-acting friction lock |
US3014742A (en) * | 1959-03-04 | 1961-12-26 | Garlock Inc | Slide ring packing |
DE3225101A1 (en) * | 1982-07-05 | 1984-01-05 | Osakeyhtiö E. Sarlin AB, 00101 Helsinki | Mechanical seal |
DE3412594C2 (en) * | 1984-04-04 | 1986-07-31 | Goetze Ag, 5093 Burscheid | Mechanical seal |
-
1987
- 1987-10-08 DE DE19873733970 patent/DE3733970A1/en not_active Ceased
-
1988
- 1988-07-26 ES ES88111987T patent/ES2021120B3/en not_active Expired - Lifetime
- 1988-07-26 DE DE8888111987T patent/DE3862008D1/en not_active Expired - Lifetime
- 1988-07-26 AT AT88111987T patent/ATE61652T1/en not_active IP Right Cessation
- 1988-07-26 EP EP88111987A patent/EP0310770B1/en not_active Expired - Lifetime
- 1988-08-08 NO NO883515A patent/NO170360C/en unknown
- 1988-10-06 PT PT88690A patent/PT88690B/en not_active IP Right Cessation
-
1991
- 1991-04-23 GR GR90400959T patent/GR3001820T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO883515D0 (en) | 1988-08-08 |
EP0310770A3 (en) | 1989-10-11 |
DE3862008D1 (en) | 1991-04-18 |
NO170360C (en) | 1992-10-07 |
ATE61652T1 (en) | 1991-03-15 |
PT88690A (en) | 1989-07-31 |
GR3001820T3 (en) | 1992-11-23 |
EP0310770B1 (en) | 1991-03-13 |
ES2021120B3 (en) | 1991-10-16 |
EP0310770A2 (en) | 1989-04-12 |
PT88690B (en) | 1993-10-29 |
DE3733970A1 (en) | 1989-04-27 |
NO883515L (en) | 1989-04-10 |
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