DE1919806A1 - Shaft seal - Google Patents

Description

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18

G. ANGUS COIiI-ANY LIMITED Shaft seal

The invention relates to shaft seals and the like Seals in the form of so-called end face seals, each consisting of a sealing ring that supports a shaft or a Similar part surrounds and has an Endfläohe resiliently Gegea a radial surface of another part such as a housing, Bearing or shaft collar so that there was a rotary movement against each other is possible, the seeping sound liquid between the parts, however, the goal is bent.

For many years it has been common practice to use a charcoal seal sr ing, a sealing ring made of phenolic resin or another sealing ring with a rubber membrane »a cuff, a bellows or other Foretell «Is support member for the To connect the sealing ring in such a way that a «permanent, leak-proof Connection arrangement awiechen received the Hing and the support member becomes, the connecting channel when fretting the support member in a form in which the ring gate of the pressing is inserted Has.

9098A5MVQ1

A front diohtungaring is subject to priority wear * ung on the surface to be sealed, with which it is in sliding contact and materials «ie for example carbon and phenolic», The see suitable for sealing rings are relatively brittle and therefore in the deformation process for the formation of the support member »and in the other end face seals required for the production of τοη Manufacturing processes susceptible to damage.

Sometimes it is also to be expected that a finished ostracized Support member is defective, so that you have to give it to the committee, but this boils down to the fact that also connected to the support member Sealing ring gets into the committee. Recovering the ring by severing it from the support member avoiding any Damage would be unprofitable.

It is clear that further use would then be possible if you could attach a sealing ring in a rational way and properly to a pre-formed support member, dooia would result I have difficulties in making a leaky one Connection between the ring and the support member. They have been tried to create a connection by applying adhesive, However, it requires a cumbersome® handling and a time-consuming process cuts and doesn't give reliable results, whatever the reason for this was to make the joining process in the l'orm a success permit.

Throughout the invention, a frontal area is created® © ha £ - fen, which are assembled from a support member formed duroh a deformation process and a separate sealing ring, whereby between the ring and its support member an im Gebra-aah. d®r Seal Ieo-safe connection is provided »

In the context of the invention, a shaft seal designed as an end face vent has a rigid sealing ring; in a coaxial arrangement in a at one end a © ® Tingför & lgen, except · an elastically deformable material existing support Glienicke & ss vorgeseheaen Sit "is fitted, wherein the sealing ring in this Si ta in the support member duroh the connecting interlockable ca Ainee nansohes and a groove removably is held and the seat one

flexible

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9 0 9 8 A 5/1 t Ö f BAD ORIGINAL -

"LjSgssaea TaA aafwaiat, who eeia Aalegaa" in ·· prints la the aok direction niiiun sit the hiaterea Since · you do «« ringe β eise liquid-undursiaäaeif · forms poetry.

The sealing ring can be inserted into the site seen in the target by deforming the supporting link material to bring the flange into engagement with the groove, so that the assembly of a sealing ring made from a separately produced sealing ring and supporting member parts simple process is «

Door provisions are preferably made, including a rotary movement of the sealing ringβ against the support member, and the connection arrangement consisting of flaneoh and groove can also be used have a corresponding shape, so it can for example be Mg- ■ ent-shaped or be formed with notches.

The flexible IbS of the seat seen in the door support member is normally supported by a compression spring, as is generally the case in End face seals are used in the axial direction opposite the rear side of the sealing ring can be pressed, and the facing surfaces of the support and the ring can be shaped in this way be that the abiohtungsdruok applied in the axial direction localized along a circular line of contact and thus Is strengthened.

Some embodiments of the invention are bispile-like shown in the accompanying drawings. Seigern in the drawings

Figure 1 shows an end of a non-execution form of an end face seal, seen from the side of the sealing ring from gej

Fi for 2 an axis β cut in one along the line H-II 1 laid in cwei meeting radial planes Section 11;

Figures 3 and 4 of an Achssohnitt relationship one part, ± n which ia * 1ei «^. ipr ^ Serem scale only the sealing ring of the figures 1 xma 2

5 to 8 £ s e ^ rsis ctßs-k

4B / 11S7

Section shown Acheeohnitte, in which further execution fora The connection arrangement consisting of splash and groove is reproduced «the« wipe a sealing ring and its seat can be seen f

FIG. 9 shows a diametrical axis offset of another Ausführungungeform an end face axis direction »and

FIG. 10 shows a section of a larger measuring stick shown section of a modified version of the from the Mohtungsringflansoh and the Sit «groove β existing connection arrangement of Figure 9.

The face seal shown in Figures 1 to 4 consists of a Qunninansohette designed as a support member serving molded part »which has a holding part 1» its training one such is that it extends up to a circumferential flange 2 in A walkway housing can be fitted to make this a static one To form seal.

The holding part 1 is by a pressed metal insert J Yersteif, which is looking for a counter support plate on the same side a compression spring 4 gives hold and engages dieee plate.

At the other end, the support member has an annular partition part 5 and a sits for the sealing ring on »being this Sits duroh a cylindrical wall 7 and one arranged transversely thereto radial foot flange 8 is formed.

You cylindrical wall 7 has in diametrical opposition to each other two »segaentförnige sunk into this wall Grooves 9 into the corresponding separate flange 10 of a rigid sealing ring 11 can be received, the consists for example of carbon or of a benzene resin. You can segnentfureigen flanges 10 either when pressing the Ring 11 or duroh machining, for example aleo duroh removal of segment-shaped sections of a Flange formed along the entire circumference in in such a way that the parts 10 remain.

The cylindrical wall 7 of the ring seat is τοη sufficient

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without flexibility in order to allow stretching τοη Haad sm, so dal üng IX approved «ad again« mtfemt was · »can, 4 on the other hand • Cash against aia unauthorized or in the Cfabramaa a * sg * ieste * tare in the axial direction swcia gagaa aiaa rotary motion on it that Imeinderereifea the grooves 9 and the flaaaeaa] 10 held iat.

In Gabranäh thief did dia lufaaflloha 12 da a Singea 11 anter the liialdruok dar spring 4 g * f * a eiaea in axial Oegenflberetelluag ro rsten Wallaabuad or against aiaa aoaatifa, la barac aaf diaaa JlHigh wire surface from.

Uatar dam aatgagaagaaatst wlrkaadaa axial flafamdraek daa Cagan dia enthadiohtata Flfteha aaliafaadaa limgaa 11 elmaraaita mad dar fader 4 aadararaalte bildat dar blaeaama Fmlflaaaoa 8 lying down fagan dia kiatara string 13 daa Biagaa 11 aiaa fltaaigkaitammdmrobltaaica Diohtuae *, ao d * B aia Auaaiokarm dar aiafaaaaloaaaaaa Flüaaiffkait awiaohaa dam Siektuafaria «* and« aimam frsggliad Taraindart will.

Dia Sadaa dar Fader 4 aiad su eiaam raoktvlaklifva Abaaklie Ben «ugariohtat, alao la dar Weiaa abfaaabliffaa, da · one at daa loading turns ever because a aiaa im weaentliohen abaaa Qaarflleaa wrliagaa has, dooh iet swiaehan dar Fadar 4 and dam Fufiflaaaek 8 daa Sitaaa in addition Toriugawaiaa a Unterlagaoheiba 14 aaa «afraltam Sheet metal Torgaaaaaa, um aaf alia cases aiaa abaaa Aala «afllaka fttr dia Fadar offered tariff sä habea, ao dafl aia Tarklammaa dar Fa4ar, daa Eremtuell compromise the sighting kSamta, Tarmiadaa will.

is sung in Figures 5 to θ, kaaa dar featea Holder dea Ringea in its seat and dar lÄohtmngamlrkma »· daa Ring by a keremgefmkrtes around a circumference waadmaff daa sitaaa Fesaelband helped uad ea kOnnea aadare farmers dar ame Flam sch and Ulla bestekenden Terbendungaamordnumc Tare · aakam aaim.

In the Aaordnmng ά · τ Figure 5 is the Bjrllmdrleeke famdmmg

7 daa M-ohtungsringeitBea along herea iuierea Qafaaga ait aimer circumferential groove 13 formed, la which a bead-like U-spring Ii is added, the daa lüekfeiereYermögea dar Tfrfntf 7 la 8iaae imr holding nose Dlehtengsgslamt aea ibae 11 uad einea einea

Im — a

90 9 845/1107 ^ D

- 6. supports this.

In Figure 6, on the other hand, an annular spring comes in a more tight-fitting manner ling 17 made of metal or core material and is made of FmB flaaseh 8 de «Si tee · iet old circular rib * 18 formed, dl with the formation of ring-shaped Diohtungskentaktflachen, wel-OA * »Ei«! Rivet «in ·· Brmoks in the Achariohtmng a relative high load, ge <en di · Eflokeeite 13 d ·· Binge · 11 drQoken.

Ia the Daretellumg the figure 7 i "t di · Sit" a bonding wire 19 wrapped and di · wall 7 in the Osfangsriohtung old am · Flameeh mmd Uli · beets hemde connection arrangement 20, dl · the I & Qhtungevirkumg fgvn since · Auealekern tone liquid reraltteltt iat a «complementary training of the seats» and the bnekselte 13 de ling 11 τοr seen.

In flgmr 8 the Si oh tang seen in the support member is - Rlngsits swi see the MaBeren sylindri eohen turn 7 and one Inner sylindri saw famdumg 21 formed with a rear edge TJ profile and the sealing ring 11 waist susltslioh one in the Girth! oh direction arranged inner Jl an son 22, the auoh eegmentfSrmlg can be and the Tevbloekend in a © corresponding background sohnidungsri He intervenes in Waadsnir 21.

Changes can be made to the illustrated embodiments Torgono — on become something like in the catfish, that nan characteristics of the one Embodiment transfers to another, and in particular can • Loh the Plamsehe 20 and 22 emtleng a · Teiluafans-s or auoh along de · extend to the full extent, depending on whether they are used for this purpose • oll that you are tungering against a rotating movement in its site fixed.

In the geseigten in Figures 9 and 10 further Amsführmmgaferm is check mm is called a "relieved ¹ * Stirnfläehemdlehtung, the support member ae 1st formed on," Dafi of the Wirkbereieh the Diemtmng Torherxsehende flfisslgkeltsdruck to xm certain "FRAD eueh amf the Bxekseite of Diomtmngsrlttge · Mmd eo mm a lusgleieh which contributes to the basic forces. Blohtungvn the MV kind are concerned mmd dl · Irflmteng »« only meets the * ¥ «r-

pear

9 0 9 8 A 5/1 1 Qi BAD ORIGINAL

- 7 binding including the sealing ring and the support member.

In FIG. 9 the "" "divides the frontal flare-diohtung waist ain designed as an oueeieanohette, serving as a support member ·· fora part on * an de «ain Hai te part 23 is a ring-shaped U-profile, • in goose sole plate 24 $ and in metal teratelfunga insats 2 $ ▼ ore · see are · <

A flexible sleeve 26 extends to the inner circumference of the holding part 23 aua in the axial direction and has a BLohtungsrlngaits amf, which through a cylindrical wall 27 and duroh a A radial foot flange 28 arranged in the transverse direction is formed will.

The inner flute of the wall 27 is depicted as a kill a 29, in which a flange 30 of a phenolic resin, for example existing rigid sealing ring 31 can be added. The sealing ring 31 has a sealing surface 32 "" in rear surfaces 33 and bakanntamaSan also a tubular shape rear extension piece 34 «on the sliding engagement with the inner lingan groove guide Circumference of the holding part 23 of the support member · β in the ··· ainsohiebbar iat. A wedge, shown on part 23, engages in a hat 36 of the Yerlfingerungteils 34 shown.

The spring force of a compression spring 37 is swisehen the fts the groove in the holding part 23 of the Traggliadaa and a sun Druokauegleieh serving metal washer 38 laid out behind de * foot flange 28 of the support link altuea for the sealing ring 31 is arranged.

Al oh, it understands after the above ton himself that the Fl to "oh 30 and the groove 29" a holder for the Mohtungsring 31 in its supporting member old "and that the flexible Fulflanaeh 28 under the axially detached support with the federdruok and de * Httealgkeitedruok both rather catfish as in the first execution afoxa peeled off against the back 33 of the Diohtungsringas Ttnuf. As can be seen on the beaten also in Figure 10, the Tlan is shown 30 at 39 ttaoh at the back conical, rarely young or cut off, un the insertion of the sealing ring by hand in the support link.

9 09 8A5 / 1107

The also mentioned in FIG. 10, torso-facing modifications, is the angular design of the bill 29 and the flange 3O _{1 as} indicated in the figure by the line 40, which results in a rotational movement of the diameter Is bent over.

AUOH is hler the Hiek "eite 55 dee seal rings · cone · stumpffCrmig auegeepart so Dafi at setting" of the transition · into the cone 39 a krelaferaige lip or strip edge 4I arises _f which is suitable for a linear Diohtungekontakt high Druokbelaatung nit the flexible Han sch 28 su rexmittel.

Claims

90984-5 / 1 107

Claims (4)

- 9 - Pt Ua tin iprflchi Shaft seal formed as a face seal with a “la coaxial ·] * Arrangement in a support member formed at one end of an annular support member made of an elastic material Rorgesehcnen Sits stored rigid Diohtungering, thereby fekennaeiahnet, that the sealing ring (Ht 31) in its Sits (7 * 8; 27, 28) in the support member by the engagement of a flange and Groove existing connection arrangement (9, 10 »20t 22} 29, 30) removable and the seat (7, 8 $ 27, 26) has a flexible Has barrel (8j 28), which when a pressure is applied in the Aohsrichtung liquid «sealing against the back (13» 33) of the sealing ring β (11) 31) is printable 2. Shaft seal according to claim 1, characterized in that * the terbind arrangement ( ^{ J, 101 29, 30) consisting of flange and groove is a segment-shaped to prevent rotation of the Dioh tungar Inges (11 »31). 3. Shaft seal according to one of claims 1 or 2, characterized in that that the facing surfaces on the back (13 * 33) of the sealing ring (11 »31) and on the flexible foot (8) 28) of the site (7, Si 27 »28) a sur mediation of a concern have a suitable shape along circular lines of contact (18 »41). 4. Shaft seal according to claim 1, characterized in that a a YTandung (7) of the seat (7, 8) of the support member " Ankle strap (16 »I7» I9) is provided. 909845/1 107 AO Blank page