DE1745898U - AXIAL THRUST LIMITING DEVICE FOR THE PUMP RUNNER OF CENTRIFUGAL MACHINES. - Google Patents

Description

Device for limiting the axial thrust of the pump rotor of centrifugal machines, especially centrifugal pumps. "" ffl- »" ffl mm - m --- m -------------- The invention relates to a device for limiting desAxialsohubes of the pump fan from centrifugal machines In particular of centrifugal pumps, which make metallic contact of the circumferential discharge plate with the counter-plate and thus a bottoming effect between the two plates impossible when the pump is switched on and off as well as in the course of operationally-related changing loads on the pump.

As a means of compensating for the axial thrust of gyroscopes various constructions have become known, such. Bo the double enema the liquid in the impeller or you have the impeller with the pressure applied to it a sealing gap on the side opposite the inlet and with openings provided close to the hub.

Attempts have also been made to compensate for this by means of a magnetic, dem bring about axial thrust corresponding opposing field. A relieving compensation was also aimed at by connecting several discharge "lnmgssoheiben" in series, of which each disc is arranged in a special working chamber, the individual working chambers are separated by rotating Diohtungssoheiben and one Entlaetungsflüsaigkeit flowing in from the highest pressure stage all one after the other Flows through steps or crevices in one go.

Axialsohubentlastungen were also known in which step-shaped Relief washers and radial and axial Drtaselapalten with ring-shaped calming spaces are connected by lines with predetermined pump stages for pressure equalization.

More recently, devices have been known to compensate for the thrust of multistage centrifugal pumps with pressure chambers at the two pump ends, in which the connection of the pressure chambers to the pressure port of the pump is automatically controlled by a control slide operated as a function of the axial movement of the pump rotor so that when a Astibwwwgußjg dM mafcM <m «ttiMr seat position d XtlB by DrokflU. 81gk. ! t to the egendruokta- = er. h6ht ua4 a. the W24 Dt Eo wydwn f $ mey btnnt Ah $ bvez'ritaBa f) Ha «tMüBtg <- aoheibn, with wlohn di <Bntl <ntt <Mtßewcth * ibw dMh'tiB «& y ozone lifted off their counterpart vdrd, 9 väh »whose Zmft deri <ala diw daring dwa dyMJtcaM tM * af «Mfadec Axialechabkrgttoo You also have bwrtw zwf VrhdyM! dr ftM & ecH i ' b uSnd * r; la o »t * teSnon Puapent Pumpant baiogN xwiechn emalafcdy Nntl & wtaagoiibw and d <tN fat- . ". h. ndel) pum ,. nt.! l on 4-pwapen .. l1. a .. 04. .. hnrl acheibea-like Wollonwulato vorßenehtau die gleb wit game KwJLeohen Neibuaoberfiaohen tc <in <m ßlgtiytn o Aohlonnenenlageyßwh «ttfden. Bi at <ftr <tnd <m Axloimb derdurch beaoyw Ambildttsg der <XiBlaaf «d $ a Eitl <H) tta & g <- auheibt = d the loototohend * n T, * Uo duob Htrabootä = g de * Nmamgk $: Ltadykw <gyisgor wcrd <M & iw <. &<m<t<no& - ought to pass by the Reib =, jeoborflgohen "As the through the Azialaohab Draek je Pläoheneinhett on the 1, Yellemaliit but a: Ledriger is't al <dy Dyok, dwn ar noyne3W3iow abwyty & gn tarne, jxoitd raised * ffi. daa equilibrium again h <rgwet <Ht a dt Reibußß aaf- ' raised $ a. There is emoh brta Mmpon at wwlohon d <iotMit derReib = g der Sobeiben with anomalous conditions 4 * dunh should be kept out of the fact that a death-covered baguette di, o IPIttehen 4 * r Britlaet = geooheiben as long as auvot = dorhut # bil in the A "bell chamber IlUl1gk. lt,. pUDpt and there k Removes * t Vortich Et * ¢ ln sur Xrb bue rowing Drl, \ ok vorhatiden 1. 1, the 41e hae: rba, t UbeN1. German In deviating <H of 44eaen ready to be prepared VoririchtM * yes md Vittel zur gerbeituhr = «one will be" ob- wtotiKmd wrfindtußtmSß winw oripichtac bMhribHt bi wwlohwr hiater da <druokawiti Mty an AxiUOf without Mt <u ody Bntlo. ottHB darah MrSa * & ljt b <Hteadxw <t B <m- element in direction: trei agile ne ugisorder is # that so look into every business condition against * inea? Unaob des Xy <a, g <y <t wo bwtMa! EMH, do inw mwtllic B <t8h <* <me Trg r tss db between the wgautunden and the fentete- hemdenSwtHttohwib with certainty v «3Mai <d <m will. DerSeeiaatad d «'r invention ad anha & d the 2ieim <tN & n & hey ßlätert. Eü eißwn: Fig.1 the print »itl & en part of a with dcppelroihißea Sohrlgkugellag. all greetings contraption Fig. 2 the drü-okefeitisen T $ il «iaey ieielB & eohice atii single row, according to Schrdig ball bearings One recognizes in figs 1 and 2 the artriebeeett * ebverted W exxdo 12 loheu i ha YS LagorgeMnew 4 surround it Am ZagerseMd. ", I. T da. Axial let $ yg <fh & uaa 3 acbaut, wwlohwe & Axiallotgar $ i'b <m & af- riaant, where 6 denotes the other Itagwrif the WallMlaettßhNW and 10 the double-row oblique toUagey drwteUtt 11 iteiet through the full body 5 the storage installation on the wool fat we &. Bwy ArMt- tter t 8 eLehert aen ovXu g gen Yerdrehnt a "f that) na: 08pi <l dea Axiallare indicates to d & e et6h dy 1, uter in the axial direction freiapieland bovegen kanno I r ta axt aht re n Darilb, he hina »shows Abbe 2 the vorgletehbart Au» fUb = god single-row angular ball bearings wovwi over several in scope arranged. te Ve4n 1 die KraftoblUaalske1'4 ,. Lasers b. 1 ae en movement wXhtlet 4t. AUÇ nb tow no the axial movement guarantees the leaves dead * Besides thick two examples there are many Abi oXBvD nA Zdlich Auz betpl Other bearing constructions when installing them entvproohead the EyfijRdmß the same bysequence y & ielt wydwn taum, d in the Image «j &jge'Sax'glls geyamordMtsn eißJ only Watch buttons. In the ab11dea the umla. nd. Bntla81ungeoheibe 1 with her f9ateMendan SegeMOhwibe 2 the Wowrfilmapalt. The i! a. Ff <tiliohtuw acting Axialwohub d <n'KpwielBtaeehiM is done by the data in column "N" in front of you on the Bittlaiitungseekeibe eirkandon Druok At the same time, the Mttfwr 12 in the valley gave way to depending on the width of the gap. When approaching and stopping a doy aechiß "fwhit di <t EiNietoll- ' by virtue of the relief device, it follows that Druok = ngeleo Also dead dieuo Älnetellkraft at sohnwIla Sol <'Bg <m as when operating N »U- aut part or VollaafSraerung amftrten, in their 9y88 <<tart; TSnderUh. De. 9 The efforts of the le against the 2smßctl <i <f <tj &, wirA ncm erfiadajagaNBB thereby vAndtt dassoioh in Aaafthrua naoh fig. l dw fri bwwgljLeh eel- bearing 10 and in the execution according to Fig * 2 of the outer H t gri) a $ 6 a freely movable ax warehouse 10 without Btl & atMsg <tf Bnt <- latung by redtrkraft in spite of the UaUuf burt with draokloseit during the stop of the pump. itersmMndm Bwtrt inAuewffect of the on * uz on the axial saw force *. nd etched crumbs so at a 14 deliberately applying # that old Sioheeüeit olne aetsllteche St- cloudy. dar Btl & sßaac. is called aiit der Eßden 3wg <tjß- eoheibw 2 verM-tt we <! oh erMn will.

Claims (3)

Protection claims 1 "Device for limiting the axial thrust of the relief device of rotary machines, in particular of centrifugal pumps, characterized in that there is no load or relief by spring force in this limiting device in discharge a) according to Fig. 1 a built-in, freely moving axial bearing (o) b) according to Fig. 2 a built-in, outer bearing ring (6) of a freely moving axial bearing (to) despite the averaging operation in the effect of the axial thrust forces in addition occurring forces so early on a support bearing flange (14) limiting applied that with certainty one; metallisehe Contact between the rotating relief disc {1) and the stationary counter disc (2) is prevented. 2 * device according to spoke le characterized, that at one Displacement of the shaft means due to wear and tear of the suspension support bearings a free-following one radial movement of the limiting device did possible. 3. Device according to claims 1 and 2, characterized in that that the limiting device forms a casting with the bearing seat or without Flange intermediate layer can be retrofitted to existing pumps.