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I-Rolling Bearing Selection - Bheka Isithombe Esikhulu

Uma uthatha umjikelezo wempilo yonke esikhundleni sokubhekana nezindleko zokuthenga zodwa, abasebenzisi bokugcina bangonga imali ngokunquma ngokusetshenziswa kwama-bearings ebanga eliphezulu.

Ama-Rolling bearings ayingxenye ebalulekile embonini ejikelezayo, imishini kanye nezinto zokusebenza, okuhlanganisa amathuluzi omshini, izinhlelo zokubamba ezizenzakalelayo, izinjini zomoya, izigayo zephepha kanye nezitshalo zokucubungula insimbi.Kodwa-ke, isinqumo esivuna i-rearing bearing ethile kufanele ngaso sonke isikhathi sithathwe ngemva kokuhlaziya zonke izindleko zempilo noma izindleko eziphelele zobunikazi (TCO) baleyo bhilidi hhayi nje kuphela ngesisekelo senani lokuthenga kuphela.

Ukuthenga ama-bearings ashibhile ngokuvamile kungase kubonakale kubiza kakhulu esikhathini eside.Ngokuvamile inani lokuthenga libalelwa kumaphesenti angu-10 kuphela wezindleko zizonke.Ngakho-ke uma kuziwa ekuthengeni ama-bearings aginqikayo, yini iphuzu ekongeni amaphawundi ambalwa lapha nalaphaya uma lokhu kusho izindleko eziphezulu zamandla ngenxa yokungqubuzana okuphezulu?Noma ama-overheads aphezulu okulungiswa okubangelwa impilo yesevisi encishisiwe yomshini?Noma ukwehluleka kokuthwala okuholela ekuphelelweni kwesikhathi komshini okungahleliwe, okuholela ekulahlekelweni kokukhiqiza, ukubambezeleka kokulethwa kanye namakhasimende anganelisekile?

Ama-bearings anamuhla athuthukisiwe aphezulu anikezela ngezici eziningi ezithuthukisiwe ezivumela ukuncishiswa kwe-TCO kufinyelelwe, okuhlinzeka ngenani elengeziwe phakathi nokuphila okuphelele kwezitshalo ezijikelezayo, imishini kanye nemishini.

Ngebheyili eklanyelwe/ekhethelwe isicelo semboni esinikeziwe, i-TCO ilingana nesamba salokhu okulandelayo:

Izindleko zokuqala/intengo yokuthenga + izindleko zokufaka/zokuthuma + izindleko zamandla + izindleko zokusebenza + izindleko zokunakekela (inqubo evamile nehleliwe) + izindleko zesikhathi sokuphumula + izindleko zemvelo + izindleko zokuyekisa/zokulahla.

Nakuba intengo yokuqala yokuthenga yekhambi le-bearing ethuthukisiwe izoba phezulu kune-bearing ejwayelekile, ukonga okungaba khona okungafezwa ngesimo sezikhathi ezincishisiwe zokuhlanganisa, ukuthuthukiswa kokusetshenziswa kwamandla kagesi (isb. ngokusebenzisa izingxenye ezithwala ukungqubuzana okuphansi) nokunciphisa izindleko zokuyilungisa, ngokuvamile ngaphezu kwentengo yokuqala ephezulu yokuthenga yesixazululo sokuthwala esithuthukisiwe.

Ukwengeza inani phezu kwempilo

Umthelela wedizayini ethuthukisiwe ekwehliseni i-TCO kanye nokwengeza inani empilweni kungaba semqoka, njengoba ukonga okuklanyelwe kuvame ukusimama futhi kungapheli.Ukwehliswa okuqhubekayo ngesikhathi sokuphila kwesistimu noma okokusebenza kubiza kakhulu ekhasimendeni ngokonga kunokwehliswa kwentengo yokuthenga yokuqala yama-bhering.

Ukubandakanyeka kwedizayini kusenesikhathi

Kuma-OEM ezimboni, ukwakheka kwama-bearings kungangeza inani emikhiqizweni yawo ngezindlela eziningi.Ngokuzibandakanya nalawa ma-OEM kusenesikhathi ezigabeni zokuklama nezokuthuthuka, abahlinzeki abaphethe bangakwazi ukwenza ngendlela oyifisayo ama-bearings alungiselelwe ngokugcwele, ahlanganisiwe nama-assemblies, ahlangabezana nezidingo ezithile zohlelo lokusebenza.Abahlinzeki bempahla bangakwazi ukwengeza inani, isibonelo, ngokwenza nokwenza ngendlela oyifisayo amadizayini athwala angaphakathi akhulisa umthamo wokuthwala umthwalo nokuqina noma anciphise ukungqubuzana.

Kuzinhlelo zokusebenza lapho izimvilophu zokuklama zincane, idizayini yokufaka ingathuthukiswa ukuze kube lula ukuhlanganisa nokunciphisa izikhathi zokuhlanganisa.Isibonelo, imicu yesikulufu endaweni yokuhlangana ingafakwa kumklamo wokuthwala.Kungase futhi kwenzeke ukuhlanganisa izingxenye ezivela ku-shaft ezungezile kanye nezindlu kumklamo wokuthwala.Izici ezinjengalezi zengeza inani langempela ohlelweni lwekhasimende le-OEM futhi zingase ziholele ekongeni kwezindleko kuyo yonke impilo yomshini.

Ezinye izici zingangezwa kuma-bearings anezela inani eliqhubekayo phakathi nokuphila komshini.Lokhu kufaka phakathi ubuchwepheshe obukhethekile bokuvala ngaphakathi kwe-bearing ukusiza ukonga isikhala;izici eziphikisana nokujikeleza ukuvimbela ukushelela ngaphansi kwemiphumela yezinguquko ezisheshayo ngesivinini kanye nesiqondiso sokujikeleza;ukumboza izindawo ezithwalayo ukuze unciphise ukungqubuzana;kanye nokwenza kahle ukusebenza kokuthwala ngaphansi kwezimo zokugcotshwa komngcele.

Umhlinzeki ophethe angakwazi ukuhlola ngokucophelela zonke izindleko zemishini, izitshalo kanye nezingxenye zazo - kusukela ekuthengeni, ekusetshenzisweni kwamandla nasekunakekeleni yonke indlela kuye ekulungiseni, ukudilizwa nokulahlwa.Ngakho-ke abashayeli bezindleko abaziwayo kanye nezindleko ezifihliwe zingabonakala, zilungiswe futhi ziqedwe.

Njengomphakeli okhiqizayo, u-Schaeffler ubheka i-TCO njengeqala ngocwaningo olunzulu kanye nemizamo yokuthuthukisa ehloselwe ukuthuthukisa okuqhubekayo kumazinga ekhwalithi futhi ngenxa yalokho izici ezisebenzayo zamabhering aqengqelekayo, ngokusebenzisa idizayini eyenziwe kahle nezinto zokwakha.Iphinde inikeze amakhasimende ayo insizakalo yokweluleka yezobuchwepheshe ehloselwe kahle, ephelele kanye nokuqeqeshwa, ukuze kutholwe isixazululo esifanelekile sohlelo ngalunye.Abadayisi benkampani kanye nonjiniyela benkonzo yasensimini bajwayelene nemikhakha yezimboni yamakhasimende abo futhi basekelwa isoftware ethuthukisiwe yokukhetha, ukubala kanye nokulingiswa.Ngaphezu kwalokho, izici ezifana nemiyalelo esebenza kahle kanye namathuluzi afanelekile okukhweza kuze kube sekugcineni okusekelwe esimweni, ukuthambisa, ukwehla nokulungisa kabusha konke kuyacatshangelwa.

I-Schaeffler Global Technology Networkihlanganisa izikhungo zobuchwepheshe ze-Schaeffler (STC).Ama-STC aletha ulwazi lwe-Schaeffler lobunjiniyela nolwazi lwesevisi eduze nakakhulu nekhasimende futhi enze ukuthi izinkinga zobuchwepheshe zisingathwe ngokushesha nangendlela ephumelela kakhulu.Iseluleko sochwepheshe nokwesekwa kuyatholakala kuzo zonke izici zobuchwepheshe be-rolling bearing okuhlanganisa ubunjiniyela bohlelo lokusebenza, izibalo, izinqubo zokukhiqiza, ukuthambisa, izinsizakalo zokukhweza, ukuqapha isimo kanye nokubonisana nokufakwa ukuze kulethwe izixazululo ezihambisanayo eziginqikayo ezilinganisweni zekhwalithi ephezulu ngokufanayo emhlabeni wonke.Ama-STC ahlala abelana ngolwazi nemibono kuGlobal Technology Network.Uma kudingeka ulwazi oluningilizayo lochwepheshe, lawa manethiwekhi aqinisekisa ukuthi ukwesekwa okuqeqesheke kakhulu kunikezwa ngokushesha - kungakhathaliseki ukuthi ludingeka kuphi emhlabeni.

Isibonelo semboni yamaphepha

Ekwenziweni kwamaphepha, ama-rolling bearings kuma-CD-profile control rolls emishini ye-calender ngokuvamile athwalwa yimithwalo ephansi.Imithwalo iphakeme kuphela lapho igebe phakathi kwemiqulu livulekile.Kulezi zinhlelo zokusebenza, abakhiqizi bemishini ngokwesiko bakhetha ama-roller angama-spherical umthamo owanele wokuthwala umthwalo wesigaba somthwalo ophezulu.Kodwa-ke, esigabeni somthwalo ophansi lokhu kuholele ekusheleleni, okuholele ekuhlulekeni kokuthwala ngaphambi kwesikhathi.

Ngokumboza izinto ezigoqayo kanye nokwenza ngcono ukugcotshwa, le miphumela eshelelayo ingancishiswa, kodwa ingaqedwa ngokuphelele.Ngalesi sizathu, u-Schaeffler uthuthukise i-ASSR eveza (Anti-Slippage Spherical Rolling Bearing).I-bearing yakha amaringi ama-rollers ayindilinga ajwayelekile, kodwa amarola emiphongolo ashintshana namabhola kumugqa ngamunye wezakhi ezimbili ezigoqekayo.Esigabeni somthwalo ophansi, amabhola aqinisekisa ukusebenza kwamahhala, kuyilapho ama-barrel rollers ethatha imithwalo esigabeni esiphezulu somthwalo.

Izinzuzo zekhasimende zicacile: kuyilapho ama-bearings asekuqaleni ngokuvamile ezuza impilo yesevisi cishe unyaka owodwa, ama-bearings amasha e-ASSR kulindeleke ukuthi aqhubeke iminyaka efika kweyi-10.Lokhu kusho ukuthi kudingeka ama-ringing bearings ambalwa ngesikhathi sokuphila komshini we-calender, ukuncishiswa kwezimfuneko zokunakekela kanye nokonga okonga okunamadijithi ayisithupha kuwo wonke umjikelezo wokuphila womshini.Konke lokhu kwafezwa ngokuthatha isikhundla somshini owodwa kuphela kucatshangelwe.Ukuthuthukisa okwengeziwe ngakho-ke ukonga okwengeziwe okubalulekile kungafinyelelwa ngezinyathelo ezengeziwe, njengokuqapha isimo se-inthanethi nokuxilongwa kokudlidliza, ukuqapha izinga lokushisa noma ukulinganisa okuguquguqukayo/okumile - konke okungahlinzekwa ngu-Schaeffler.

Ama-turbines omoya kanye nemishini yokwakha

Ama-bearings amaningi aphuma ku-Schaeffler atholakala ngokusebenza okuphezulu, inguqulo ye-X-life eyikhwalithi ephezulu.Isibonelo, lapho kuthuthukiswa uchungechunge lwe-X-life lwama-roller bearings, ukunaka okukhethekile kukhokhwa ekuzuzeni ukwethembeka okuphezulu nokunciphisa ukungqubuzana, ikakhulukazi ekufakweni komthwalo ophezulu kanye nalezo ezidinga ukunemba kokujikeleza.Lokhu kusho ukuthi abakhiqizi bamayunithi ama-hydraulic noma ama-gearbox (izisekelo ezithwala izintambo) njengalezo ezitholakala kumaturbine omoya, ezimotweni zezolimo nemishini yokwakha, manje bangakwazi ukweqa imikhawulo yokusebenza yangaphambilini, kuyilapho bethuthukisa kakhulu ukuphepha kokusebenza.Mayelana nokwehliswa kwezimo ezithuthukisiwe zama-X-life bearings kusho ukuthi ukusebenza kuka-gearbox kuba ngcono, kuyilapho imvilophu yokuklama ingashintshile.

Ukuthuthukiswa okungama-20% esilinganisweni somthwalo oguquguqukayo kanye nokuthuthukiswa okuncane okungama-70% empilweni yokulinganisa okuyisisekelo kufinyelelwe ngokwenza ngcono ijometri, ikhwalithi yendawo ephezulu, izinto zokwakha, ukunemba kobukhulu nokugijima kwama-bheringi.

Izinto ezithwala i-premium ezisetshenziswa ekwenziweni kwe-X-life tapered roller bearings iguqulelwe ngokukhethekile ukuze ihlangabezane nezidingo zama-rolling bearings futhi iyisici esibalulekile ekusebenzeni okwandisiwe kwama-bearings.Isakhiwo sokusanhlamvu esihle salesi sihloko sinikeza ukuqina okuphezulu futhi ngakho-ke ukumelana okuphezulu nokungcola okuqinile.Ukwengeza, iphrofayili ye-logarithmic yathuthukiswa emigwaqweni ethwalayo kanye nendawo yangaphandle yama-roller, enxephezela iziqongo zokucindezeleka okukhulu ngaphansi kwemithwalo ephezulu nanoma yikuphi "i-skewing" engenzeka ngesikhathi sokusebenza.Lezi zindawo ezithuthukisiwe zisiza ekwakhekeni kwefilimu ye-elasto-hydrodynamic lubricant, ngisho nangesivinini esiphansi kakhulu sokusebenza, esenza ama-bearings akwazi ukumelana nemithwalo ephezulu ngesikhathi sokuqalisa.Ngaphezu kwalokho, ukubekezelelana okuthuthukisiwe okuthuthukisiwe kwe-geometrical kuqinisekisa ukusatshalaliswa komthwalo okuphelele.Ngakho-ke iziqongo zokucindezeleka ziyagwenywa, okunciphisa ukulayishwa kwezinto.

I-torque eshayisanayo yamabheringi amasha e-X-life tapered roller yehliswe ngamaphesenti angama-50 uma kuqhathaniswa nemikhiqizo evamile.Lokhu kungenxa yokunemba kobukhulu obuphezulu nokugijima ngokuhambisana ne-topography ethuthukisiwe.Ijiyomethri yokuxhumana ebuyekeziwe yombambo lweringi yangaphakathi kanye nobuso bokuphela kwerola nakho kusiza ekwehliseni ukungqubuzana.Ngenxa yalokhu, izinga lokushisa elisebenzayo libuye lehliswe kuze kufike ku-20%.

I-X-life tapered roller bearings ayigcini nje ukonga kakhulu, kodwa futhi iholela emazingeni okushisa aphansi okusebenza, okubuye kubeke ubunzima obuncane kakhulu ku-lubricant.Lokhu kwenza izikhawu zokulungisa zinwetshwe futhi kubangele ukuthi ibheringi isebenze emazingeni ancishisiwe omsindo.


Isikhathi sokuthumela: Apr-19-2021
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