Amathiphu ayi-10 Okwandisa Impilo Yokuthwala Nokusebenza Kwemishini

Isu Lokuphila Nokusebenza Kwemishini Yokuthwala

Emisebenzini yezimboni yesimanje, imishini ejikelezayo yakha umgogodla wokukhiqiza, futhi ukuthembeka kwale mishini kuhlobene kakhuluukusebenza kokuthwalaUkuphatha ama-bearings njengezinto ezisetshenziswayo kuyiphutha lokusebenza elibanzi kodwa elibizayo. Lapho izinhlangano zishintsha umbono wazo ukuze zibheke lezi zingxenye njengezimpahla ezibalulekile, zivula ukuthuthuka okuphawulekayo ekusebenzeni kahle kwemishini iyonke (i-OEE). Isu eliphelele lokuphila kwama-bearings lihlanganisa ubunjiniyela obunembile, izinqubo zokulungisa eziqinile, kanye nokuhlaziywa kwedatha yomjikelezo wokuphila ukuze kwandiswe isikhathi sokusebenza kwemishini.

Imiphumela yezomnotho yokwehluleka kwamabhereyi idlula kakhulu izindleko zokuthenga ingxenye entsha. Imininingwane yemboni ikhombisa ukuthi izinkinga ezihlobene namabhereyi zibangela cishe u-51% wazo zonke izinkinga zezimoto zikagesi, okwenza kube yimbangela ehamba phambili yokungasebenzi kahle kwemishini okungahleliwe. Ngokusebenzisa amasu aqondiwe okwandisa impilo yamabhereyi, izikhungo zezimboni zingaguquka kusukela ekucimeni umlilo okusebenzayo ziye ekuphathweni kwempahla okubikezelayo, ukuzinzisa amashejuli okukhiqiza kanye nokwenza ngcono isabelomali sokulungisa.

Kungani Ukwethembeka Kokuthwala Kufanele Kube Yisu Elihlakaniphile

Ukuphakamisa ukuthembeka kwamabhereli ezingeni elifanele kudinga ukuvumelanisa imikhuba yokulungisa nezinhloso ezibanzi zenkampani maqondana nomkhiqizo kanye nokusebenza kahle kwemali. Ezindaweni ezibaluleke kakhulu njengokukhiqiza okuqhubekayo kwenqubo, ukukhiqizwa kwamandla kagesi, noma ukuhluzwa kwe-petrochemical, ukwehluleka okukodwa kwebhereli okungamaphutha kungamisa umugqa wokukhiqiza wonke. Izinhlangano ezifinyelela izilinganiso zokuthembeka zekota ephezulu zenza kanjalo ngokusungula amazinga aqinile okukhetha amabhereli, ukugcina, ukufaka, kanye nokuqapha, zikwazi ukukhiqiza ngempumelelo izimbangela eziyinhloko zokwehluleka kwangaphambi kwesikhathi.

Indlela ehlakaniphile ihilela nokubambisana okusebenzayo phakathi kweminyango yokuthenga, ubunjiniyela, kanye nokugcinwa kwempahla. Esikhundleni sokuthenga ingxenye ebiza kakhulu, amaqembu okuthenga impahla kumele asebenzisane nonjiniyela abathembekile ukuthola ama-bearings ahlangabezana nemininingwane eqondile yesicelo. Lokhu kuqondanisa kuqinisekisa ukuthi izindleko eziphelele zobunikazi (i-TCO) zibekwa phambili kunentengo yokuqala yokuthenga, okukhuthaza isiko lapho ukunemba nokusebenza kwesikhathi eside kulawula izinqumo zochungechunge lokuhlinzeka.

Imiphumela Ebalulekile Yokuphila: Isikhathi Sokusebenza, Izindleko, kanye Nengozi

Imiphumela eyinhloko yesu eliphumelelayo lokusebenzisa imishini yokuthwala umthwalo ukwanda okulinganiselwe kwesikhathi sokusebenza kwemishini, ukwehla kwezindleko zokulungisa, kanye nokunciphisa ingozi yokusebenza. Isikhathi sokungasebenzi esingahleliwe embonini enzima singaba nezijeziso zezimali ezinkulu, ngokuvamile kusukela ku-$10,000 kuya ku-$250,000 ngehora kuye ngomkhakha. Lapho i-bearing ifinyelela impilo yayo yesevisi engaba khona, imvamisa yalezi zenzakalo zokungasebenzi kahle kwezindleko eziphezulu yehla ngokushesha, ivikele ngqo inzuzo yesikhungo.

Ukulungiswa kwezindleko kufezwa hhayi nje kuphela ngezingxenye ezimbalwa zokufaka esikhundleni kodwa futhi nangokuncishiswa kwezidingo zomsebenzi kanye nomonakalo wesibili ophansi. Lapho ibheri ihluleka ngendlela edabukisayo, ivame ukubhubhisa izingxenye eziseduze njengemigoqo, izindawo zokubopha, kanye nezivalo, okwenza ukulungiswa okuncane kube ukulungiswa okukhulu. Ngokulawula ingozi ngokulungiswa okubikezelayo kanye nokulawula okunembile kokusebenza, izikhungo ziqinisekisa ukuthi amabheri ayashintshwa ngesikhathi samafasitela ahleliwe okungasebenzi, okunciphisa kakhulu izingozi zokuphepha kanye nesiphithiphithi sezokuthutha esihlobene nokulungiswa okuphuthumayo.

Izincazelo Zokuphila Nezindlela Zokwehluleka

Ukuqonda ukuthi impilo yokuthwala ibalwa, ichazwa kanjani, futhi ekugcineni ibe sengozini kubalulekile kunoma yiluphi uhlelo lokuthembeka. Amagama aphathelene nokuphila isikhathi eside kokuthwala avame ukubangela ukudideka phakathi kwezinhloso zokuklama ubunjiniyela kanye namaqiniso okusebenza emhlabeni wangempela. Ukuvala igebe phakathi kwamamodeli emfundiso kanye nokusebenza kwangempela kwemishini kudinga ukuqonda okujulile kwe-kinematics yokwehluleka kanye nezici zemvelo ezonakalisa izakhi ezigoqekayo.

Onjiniyela kanye nochwepheshe kumele bakhulume ulimi olufanayo lapho behlola impilo yamabhere. Ngokuhlela izincazelo zesikhathi sokuphila kanye nokuhlukanisa ngokuhlelekile izindlela amabhere ahluleka ngazo, izinhlangano zingakwazi ukusebenzisa izinhlelo zokuhlaziya imbangela yezimpande (RCA) eziphumelela kakhulu. Lokhu kuqina kokuhlaziya kuguqula izingxenye ezihlulekile kusuka ensimbini elahliwe zibe amaphuzu edatha abalulekile aqhuba intuthuko eqhubekayo.

Impilo Elinganisiwe vs. Impilo Yesevisi

Isilinganiso esiyisisekelo sobude besikhathi sokuthwala yimpilo elinganiswe yi-L10 (noma i-L10h yamahora). Ichazwa yi-ISO 281, impilo ye-L10 imelela inani lokujikeleza noma amahora okusebenza okuzodlula ama-90% eqembu lama-bearings afanayo ngaphambi kokuba kwenzeke ubufakazi bokuqala bokukhathala kwensimbi (i-spalling). Ukubala kuncike kakhulu esilinganisweni somthwalo oguquguqukayo (C) kanye nomthwalo olinganayo wokuthwala oguquguqukayo (P), kusetshenziswa ifomula i-L10 = (C/P)^p, lapho u-'p' engu-3 wama-ball bearings kanye no-10/3 wama-roller bearings.

Ngokuphambene kakhulu nokuphila okulinganiselwe, impilo yangempela yesevisi, okuyisikhathi lapho ibhereyi ihlala isebenza khona kuhlelo lokusebenza oluthile ngaphambi kokwehluleka noma ukususwa ukuze ilungiswe. Ngenkathi ukubalwa kwe-L10h kungabikezela isikhathi sokuphila esingokwengqondo samahora ayi-100,000 ngaphansi kwezimo ezifanele zelebhu, impilo yangempela yesevisi endaweni yezimboni enzima ingaba ngamahora ayi-10,000 kuya kwangu-20,000 kuphela. Lokhu kungafani okukhulu cishe kubangelwa yiziguquguquko zangaphandle njengokungcola, ukugcotshwa okungafanele, kanye namaphutha okufakwa, kunokuba kube ukukhathala okungokwemvelo kwezinto ezibonakalayo.

Izindlela Zokwehluleka Ezivamile Nezimbangela Eziyinhloko

Ngokusho kwe-ISO 15243,izindlela zokwehluleka kokuthwalazihlukaniswa ngezigaba ezihlukene: ukukhathala, ukuguguleka, ukugqwala, ukuguguleka kukagesi, ukuguqulwa kwepulasitiki, kanye nokuqhekeka. Ukuhlaziywa kwemboni kuveza njalo ukuthi ukukhathala kwezinto ezihlanzekile kubangela iphesenti elincane ngokumangalisayo lokwehluleka—ngokuvamile ngaphansi kuka-10% ekusetshenzisweni kwangempela. Esikhundleni salokho, izinkinga zokugcoba (kufaka phakathi ukugcoba ngokweqile, ukugcoba okunganele, kanye nokuthambekela okungalungile) kuyimbangela eyinhloko cishe engu-36% yokwehluleka kwangaphambi kwesikhathi.

Ukungcola kungenye imbangela ehamba phambili, ebangela cishe ukwehluleka okungu-14%, kuyilapho ukufakwa nokuphathwa okungafanele kubanga okunye okungu-16%. Ukungcola kwezinhlayiya eziqinile kwephula ifilimu ye-elastohydrodynamic lubrication (EHL), okubangela ukuguguleka okulimaza ngokushesha i-geometry yangaphakathi yemigwaqo yomjaho. Ngokufanayo, ukuphathwa kabi kungabangela ukuqhuma kwe-brinelling yangempela—ukuguqulwa kwepulasitiki okuhlala njalo kwemigwaqo yomjaho—ngaphambi kokuba umshini unikezwe amandla.

Ubufakazi Bokuhlola Kudokhumenti

Ukubhala phansi ubufakazi obubonakalayo nobuncane bebhereyi ehlulekile kubalulekile ekuvimbeleni ukuphinda kwenzeke. Uma ibhereyi isusiwe ekusebenzeni, kufanele iphathwe njengobufakazi bobunhloli. Ochwepheshe kumele bahlole izindawo zomthwalo womgwaqo womjaho, isimo sezinto ezigingqikayo, ubuqotho bekheji, kanye nesimo sesithambisi esisele.

Isibonelo, uma ukuhlolwa kwembula amaphethini okugoba emgwaqweni wangaphakathi wendandatho, imbangela eyinhloko cishe iwumshini wokukhipha ugesi (i-EDM) obangelwa ama-variable frequency drives (ama-VFD) abangela ama-voltage e-shaft. Ezimweni ezinjalo, ukufaka nje i-bearing kuzoholela ekuhlulekeni okunye. Ubufakazi obubhaliwe buchaza ukulungiswa kwesistimu, njengokufaka izindandatho zokusekela umgodi noma ukuthuthukisa ama-bearing e-ceramic ahlanganisiwe ahlinzeka ngokushisa kukagesi.

Izici Zokukhetha Amabhere kanye Nesicelo

Isisekelo sokuphila isikhathi eside kokuthwala sibekwa ngesikhathi sokuqala sobunjiniyela kanye nokukhetha. Ukucacisa i-bearing kuyisenzo sokulinganisela esiyinkimbinkimbi esidinga ukufanisa i-geometry yangaphakathi, isayensi yezinto ezibonakalayo, kanye namakhono e-kinematic engxenye nezidingo eziqondile zohlelo lokusebenza. I-bearing efaneleka kahle i-spindle yamathuluzi omshini wesivinini esikhulu izohluleka ngokushesha uma ifakwe ku-crusher yamatshe enesivinini esiphansi, enomthelela omkhulu.

Abakhiqizi bamabhereyi banamuhla banikeza uhla olukhulu lwezilungiselelo, izinhlobo, kanye nobuchwepheshe obukhethekile. Ukuzulazula kule ndawo kudinga ukuhlolwa okujulile kwenkambiso yokusebenza. Ngokuhlaziya ngokucophelela amandla aguquguqukayo, izinselele zemvelo, kanye nemikhawulo yendawo yemishini, onjiniyela bangakhetha ukucushwa kwamabhereyi okumelana ngokwemvelo nezindlela zokwehluleka ezivelele zalolo hlelo oluthile.

Umthwalo, Isivinini, Izinga Lokushisa, kanye Nokususwa

Imvilophu yokusebenza ichazwa yizinsika ezine eziyinhloko: umthwalo, isivinini, izinga lokushisa, kanye nokususwa kwangaphakathi. Umthwalo oguquguqukayo ofanayo kumele ubalwe ngokunembile ukuqinisekisa ukuthi uwela ngaphakathi kobubanzi bokusebenza obufanele bebheri. Ngenkathi ukulayisha ngokweqile kusheshisa ukukhathala, ukulayisha okungaphansi kungalimaza ngokulinganayo, kubangele ukuthi izinto ezigoqayo zishelele kunokuba zigoqeke, okuholela ekugugeni okusheshayo kokunamathela. Imikhawulo yesivinini inqunywa ububanzi bephimbo lebheri kanye nomklamo wekheji, ovame ukuvezwa njengesici se-NDm, esilawula i-RPM ephezulu evunyelwe ngaphambi kokuba amandla e-centrifugal kanye nokungqubuzana kukhiqize ukushisa okungalawuleki.

Izinga lokushisa kanye nokususwa kwangaphakathi kuxhumene ngokujulile. Insimbi ejwayelekile yokuthwala (njenge-52100) idlula ekwelashweni kokuzinza kobukhulu okuvumela ukusebenza okuqhubekayo kuze kufike ku-120°C. Uma amazinga okushisa okusebenza edlula lo mkhawulo, insimbi idlula ezinguqukweni zesigaba sensimbi, okuholela ekukhuleni okuhlala njalo kobukhulu kanye nokulahlekelwa ubulukhuni. Ukuze kuhlangatshezwane nokwanda kokushisa ngesikhathi sokusebenza okuvamile, ama-bearings akhiqizwa ngezimvume ezithile zangaphakathi (isb., CN, C3, C4). Isibonelo, i-C3 clearance inikeza cishe ama-micrometer angu-13 kuya kwangu-28 okudlala okwengeziwe kwe-radial ku-bearing ephakathi nendawo, okuvimbela ukubopha okubi lapho indandatho yangaphakathi ishisa kakhulu kune-outer housing.

Ukuqhathanisa Uhlobo Lokuthwala

Ukukhetha uhlobo olufanele lokuthwala kudinga ukufanisa umklamo womshini nesiqondiso esiyinhloko kanye nobukhulu bemithwalo esetshenziswayo.Ama-bearings ebhola ajulileZiyakwazi ukushintshashintsha kakhulu, zikwazi ukumelana nemithwalo ephakathi nendawo kanye ne-axial ngesivinini esikhulu, kodwa azinawo amandla okuthwala imithwalo yezimboni ezisindayo. Ama-roller bearings e-cylindrical anikeza amandla amakhulu okuthwala imithwalo ngenxa yokuxhumana komugqa kunokuba kube ukuxhumana okuqondile, kodwa ngokuvamile awakwazi ukubekezelela imithwalo ye-axial noma ukungalungi kahle.

Uma ukuphambuka komgodi noma ukungahambisani kahle kwendlu kungenakugwenywa, ama-roller bearings ayindilinga avame ukuba yisinqumo esihle kakhulu. I-geometry yawo yokuzilungisa iwavumela ukuthi afake ama-degrees angu-2.0 okungahambisani kahle ngaphandle kokudala ukucindezeleka kokulayisha onqenqemeni okungabhubhisa ngokushesha i-roller bearings eqinile. Ngokuphambene nalokho, ukusetshenziswa kwemithwalo esindayo ye-radial kanye ne-axial ehlanganisiwe, njengezindawo zokulawula amasondo ezimoto noma ama-gearbox ezimboni, kuncike kakhulu kuma-roller bearings ahlanganisiwe ngamabili aphikisanayo.

Izinto zokwakha, iziMpawu, amaKheji, kanye nokulingana kokugcoba

Ngale kwe-macro-geometry, izingxenye ezincane zebhereyi zilawula ukusinda kwayo ezindaweni ezinzima. Izinto ezijwayelekile zokugoqa izinto namasongo yinsimbi ye-chromium eqinile ngekhabhoni ephezulu, evame ukuqina ibe yi-58-65 HRC. Kodwa-ke, uma kusetshenziswa izinto ezihlushwa ukugcotshwa okubi noma ugesi,amabheringi ahlanganisiweUkusebenzisa izinto ezigoqayo ze-silicon nitride (ceramic) kunikeza ukumelana okuhle kakhulu nokuguguleka kanye nokufakwa kogesi okungokwemvelo.

Amakheji nezimphawuli nazo zidlala indima ebalulekile. Amakheji ensimbi anesitembu ajwayelekile, kodwa amakheji ethusi akhiwe ngomshini anikeza ukusebenza okuphezulu ezindaweni ezinokudlidliza okuphezulu, kuyilapho amakheji e-polyamide 66 (PA66) aqiniswe ngefayibha yengilazi anikeza izakhiwo ezinhle kakhulu zokushelela kanye nezici zokusebenza eziphuthumayo. Ukukhetha ukuvala kuyindlela yokushintshana phakathi kokuvikela kanye nekhono lokusheshisa. Izihlangu zensimbi ezingathintani (Z) zivumela ukusebenza ngesivinini esikhulu kodwa zinikeza ukuvikelwa okuncane kakhulu koketshezi, kanti ama-contact seals aqinile (RS) ahlinzeka ngokukhishwa okuhle komswakama kanye nezinto ezincane kodwa akhiqiza ukungqubuzana okunciphisa isivinini esiphezulu sokujikeleza futhi kwandise amazinga okushisa okusebenza.

Imikhuba Yokunakekela Eyandisa Ukuphila Kokuthwala

Ngisho nebheri eklanywe kahle kakhulu izohluleka ngaphambi kwesikhathi uma isetshenziswa ngendlela yokulungisa engaphansi kwezinga elifanele. Umjikelezo wokuphila kwebheri ensimini ulawulwa kakhulu ukunemba okufakwe ngakho, ukuhlanzeka nokunemba kohlelo lwayo lokuthambisa, kanye nokuqapha okubhekwa ngakho isimo sayo. Ukugcinwa kuyindlela yokuzivikela engaphambili ezinguqukweni zangaphandle ezilimaza ukusebenza kwebheri.

Ukushintsha kusuka ekulungiseni okuvamile, okuguqula ama-wrench kuya ekuthembekeni kokunemba kudinga ukutshalwa kwezimali kumathuluzi, ukuqeqeshwa, kanye namasiko. Ochwepheshe kumele baqonde ukuthi ama-bearings ayizinto zokunemba, ezivame ukwenziwa ngokwezinga lokumelana elilinganiswa kuma-single microns. Ukuwaphatha ngamandla amakhulu noma ukuwaveza ezingcoleni zaphansi ezitolo kulimaza kakhulu amakhono abo obunjiniyela.

Ukufakwa, Ukulingana Kweshaft, kanye Nokulingana Kwezindlu

Ukufakwa okufanele kuqala ngokunamathela ngokuqinile ekubekezeleni komgodi kanye nokulingana kwendlu. Ama-bearings athembele ekuphazamisekeni okuthile kanye nokulingana kwesikhala ukuze kuvinjelwe ukugqwala okubangelwa ukugqwala kanye nokuqhekeka kwendandatho. Uhlelo lokubekezela lwe-ISO lulawula lokhu kulingana; isibonelo, i-shaft eqinile ejikelezayo ngokuvamile idinga ukulingana kokuphazamiseka (isb. k5 noma m5), kuyilapho i-housing engashintshi isebenzisa ukulingana kokuguquka noma kwesikhala (isb. H7 noma J7). Ukulinganisa ama-shaft kanye nama-housing journal ngama-micrometer ngaphambi kokufakwa kuyisinyathelo esingenakuxoxiswana ngaso ukuqinisekisa lokhu kubekezela.

Amasu okufaka kumele aqede ingozi yokulayisha ngokushaqeka. Ukufaka okubandayo kusetshenziswa isando kanye nokukhukhuleka kufanele kugwenywe; uma kudingeka, amasongo okuthinta akhethekile asabalalisa amandla ngokulinganayo kuzo zombili izindandatho zangaphakathi nezangaphandle kumele asetshenziswe ukuvimbela ukucwiliswa koketshezi. Ukuze kufakwe ukuphazamiseka, ukunwetshwa kokushisa ngokushisa kwe-induction kuyindinganiso yemboni. Ama-bearings kufanele avame ukushiswa afike ku-110°C (futhi angadluli ku-120°C) ukuze avumele ukuthi ashelele kalula emshafini. Ukusetshenziswa kwamalangabi avulekile noma amabhavu kawoyela angcolile kuletha ukuthambekela okukhulu kokushisa kanye nokungcola, okonakalisa i-bearings ngaphambi kokuba iqale ukusebenza.

Imikhuba Emihle Kakhulu Yohlelo Lokugcoba

Ukugcotshwa kuyigazi lokuphila kwebhereyi, elinomthwalo wokuhlukanisa izindawo zensimbi, ukuqeda ukushisa, nokuvimbela ukugqwala. Uhlelo lokugcotshwa olusebenza kahle luncike ekubaleni inani eliqondile le-kappa (κ = ν / ν1), okuyisilinganiso se-viscosity yokusebenza yangempela ne-viscosity elinganisiwe edingekayo ngesivinini esithile kanye nobubanzi be-pitch. Inani le-kappa eliphakathi kuka-1.5 no-4.0 libonisa ifilimu ephelele ye-elastohydrodynamic (EHL), eqinisekisa ukuhlukaniswa okuphezulu kobuso.

Izikhawu zokuphinda kugcotshwe kanye nobuningi kumele kunqunywe ngokwezibalo kunokuba kusekelwe ekuqageleni. Ukugcoba ngokweqile kuyinkinga enkulu embonini; ukupakisha indlu yokubeka egcwele amafutha kuholela ekungqubuzaneni okukhulu koketshezi kanye nokujikijelana. Lokhu kujikijelana kungabangela amazinga okushisa okusebenza ukuba akhuphuke ngo-15°C kuya ku-20°C, okwandisa ngokushesha uwoyela oyisisekelo futhi kubhubhise i-thickener matrix. Ukusebenzisa ukugcoba okusizwa yi-ultrasound kuvumela ochwepheshe ukuthi balalele ukungqubuzana kwe-acoustic kwe-bearing, bafake inani eliqondile lamafutha kuze kube yilapho isisekelo sokubopha sehla siye emazingeni afanele, ngaleyo ndlela kuqedwe kokubili ukugcotshwa ngokweqile kanye nokungagcotshwa kahle.

Ukuqapha Isimo Sokuwohloka Kwasekuqaleni

Ukuqapha isimo esisebenzayo kuthola izigaba zokuqala zokuwohloka kwamabhereyi, okuvumela izikhungo ukuthi zihlele ukushintshwa kwamasonto noma izinyanga ngaphambi kokuba kwenzeke ukwehluleka kokusebenza. Ukuhlaziywa kokudlidliza kuyitshe lesisekelo sale ndlela. Amasu athuthukile njengokususwa kwe-envelopu noma ukusheshisa kwemvamisa ephezulu athumba ama-shock pulses amancane akhiqizwa lapho izinto ezigoqekayo zidlula phezu kwesikhala esikhulayo. Ukulandelela amaza okukhubazeka—njenge-Ball Pass Frequency Outer (BPFO) noma i-Ball Pass Frequency Inner (BPFI)—kuvumela abahlaziyi ukuthi bakhombe ngqo ukuthi iyiphi ingxenye engaphakathi kwebhereyi ehlulekayo.

Ezinhlelweni ezigcotshwe ngamafutha, ukuhlaziywa koketshezi kubaluleke kakhulu. Ukuqapha ukubalwa kwezinhlayiya ngokwezindinganiso ze-ISO 4406 kunikeza inkomba eqondile yokuguguleka kwamabhereyi kanye nobuqotho besivalo. Ibhokisi legiya elibalulekile lingabhekisa ikhodi yokuhlanzeka ye-ISO 4406 yango-16/14/11; ukuthambekela okukhuphukayo ekubalweni kwezinhlayiya ze-4-micron kanye ne-6-micron kusebenza njengesixwayiso sokuqala sokuguguleka okunamathelayo noma okuhudulayo. Kuhlanganiswe ne-thermography ejwayelekile ye-infrared ukuqapha amazinga okushisa ezindlu, lobu buchwepheshe bokuqapha isimo bakha ukuzivikela okuphelele ekuhlulekeni okungalindelekile okuyinhlekelele.

Izinqumo Zokushintsha, Ukuthuthukisa, Nokuhlela Kabusha

Uma ukwehluleka kwama-bearing kuba okungapheli, izinhlangano kumele zishintshe kusukela ekushintsheni okuvamile ziye ekuhleleni kabusha amasu. Ukushintsha njalo ama-bearing ahlulekile ngaphandle kokubhekana nezinkinga eziyisisekelo zesistimu kuyinkinga enkulu ebhajethini yokulungisa kanye nesibopho esikhulu samashejuli okukhiqiza. Ukuqaphela umkhawulo lapho ukulungiswa kuphela khona kanye nokungenelela kobunjiniyela kuqala khona kuyikhono elibalulekile lamaqembu athembekile.

Ukuthuthukisa noma ukuklama kabusha ilungiselelo lokuthwala kuhilela ukuhlola yonke indawo yokusebenza kwemishini. Lesi sigaba sidinga ukulawulwa kwekhwalithi okuqinile, ukunamathela ezindinganisweni zokuthobela imithetho, kanye nokuhlaziywa kwezezimali okuphelele ukuze kuqinisekiswe izindleko zemali ezidingekayo zokuthuthukiswa kobunjiniyela. Umgomo uwukusebenzisa ikhambi elihlala njalo elishintsha ngokuyisisekelo indlela yokuphila kwemishini.

Uma Ukwehluleka Okuphindaphindiwe Kubonisa Inkinga Ejulile

Ukwehluleka okuphindaphindiwe kwesikhundla esifanayo sokuthwala kubonisa ngokuqinile ukungafani phakathi kwamakhono okuklama ethwala kanye nezimo zokusebenza zangempela. Uma uhlelo oluklanyelwe impilo ye-L10h yeminyaka emi-5 lubonisa njalo i-Mean Time Between Failures (MTBF) eyehla ngaphansi kwezinyanga eziyi-6, uphenyo olujulile luyadingeka. Lesi simo sivame ukukhomba imithwalo engabalwanga, njengokwanda kokushisa okubopha umgodi, ukuzwakala okukhulu kwesakhiwo, noma izinguquko zenqubo ezikhulise izidingo zokusebenza ngale kwemininingwane yokuqala ye-OEM.

Kulezi zimo, ukwakhiwa kabusha kungabandakanya ukuthuthukela kubhereyi enesilinganiso somthwalo oguquguqukayo esiphezulu, ukushintsha ilungiselelo ukuze kufakwe indawo ehlukile egxilile nentantayo ukuze kuhlangatshezwane nokukhula kokushisa, noma ukushintsha uhlobo lwebhereyi ngokuphelele. Isibonelo, ukufaka esikhundleni sebhereyi ...

Ikhwalithi, Ukulandelela, kanye Nokuhlolwa Kokuhambisana Nemithetho

Lapho kutholakala ama-bearings angena esikhundleni sawo, ukuhlolwa okuqinile kwekhwalithi kanye nokulandelela kubalulekile ukuqinisekisa ukuthi izingxenye ezingaphansi kwezinga aziphazamisi ukwakhiwa kabusha. Imakethe yezimboni igcwele kakhulu ama-bearings mbumbulu, asebenzisa i-metallurgy ephansi kanye nokubekezelelana okubi kokukhiqiza. Izikhungo kumele ziphoqelele ukuthi iminyango ethengayo ithole izingxenye kuphela ku-abasabalalisi abagunyaziwe, abaqinisekiswe ngumkhiqiziUkuqinisekiswa kuhilela ukuhlola izivalo zasefektri, amakhodi okulandelela aqoshiwe nge-laser, kanye nezitifiketi zokuthobela imithetho (CoC) ezidingekayo zezicelo ezibalulekile.

Onjiniyela kumele baqinisekise nokuthi ama-bearings ashintshayo ahlangabezana nezigaba zokubekezelelana ezidingekayo. Ngezicelo ezijwayelekile zezimboni, i-ISO Class 0 (ABEC 1) yanele. Kodwa-ke, kuma-spindles amathuluzi omshini asheshayo noma ama-robotics anembile, ama-bearings kumele ahlangabezane nezindinganiso ze-ISO Class 4 noma ze-Class 2 (ABEC 7 noma ze-ABEC 9). Lawa makilasi anembile aphoqelela imikhawulo eqinile ekugijimeni kwe-radial—ngokuvamile edinga ukuthi ukugijimela kube ngaphansi kwama-micrometer angu-5—okuqinisekisa ukunemba kokujikeleza okudingekayo ukuze kusebenze ngaphandle kokudlidliza ngesivinini esikhulu.

Izindleko, Ingozi, kanye nohlaka lwezinqumo zomjikelezo wokuphila

Isinqumo sokuthuthukisa noma sokuklama kabusha kumele sisekelwe uhlaka oluqinile lwe-Total Cost of Ownership (TCO). Nakuba izixazululo ze-bearing ezakhiwe zinezindleko zokuthenga zokuqala eziphakeme, kumele zihlolwe ngokumelene nengozi yezezimali yokuqhubeka nokungasebenzi. Uhlaka lwesinqumo somjikelezo wokuphila lubheka izindleko ze-bearing, umsebenzi wokufaka, ingozi yomonakalo wesibili, kanye nezindleko zehora zokukhiqiza okulahlekile.

Isibonelo, ukuthuthukiswa kusuka kubhere elivulekile kuya kubhere eliyindilinga eliyisiyingi elivaliwe elisezingeni eliphezulu ekusetshenzisweni kokuthutha okungcoliswe kakhulu kwezimayini kungase kwandise izindleko zeyunithi ngo-40%.

Izinto Ezibalulekile Okufanele Uzicabangele

• Phatha ama-bearings njengempahla ehlakaniphile kunezinto ezisetshenziswayo ezingabizi kakhulu ukuze uthuthukise isikhathi sokusebenza, i-OEE, kanye nokuthembeka kwemishini yesikhathi eside.
• Ngenxa yokuthi izinkinga ezihlobene namabhereyi zibangela cishe u-51% wokwehluleka kwenjini kagesi, amaqembu okulungisa kufanele abeke phambili imikhuba yokukhetha, ukugcoba, ukufaka, kanye nokuqapha.
• Isikhathi sokuphumula esingahleliwe singabiza kusukela ku-$10,000 kuya ngaphezu kuka-$250,000 ngehora, okwenza ukulungiswa kwesimo esibikezelayo kubaluleke kakhulu ngokwezimali.
• Sebenzisa amabheringi athile ahambisana nomthwalo, isivinini, izinga lokushisa, ukunemba, ukuvezwa kokungcola, kanye nendawo yokusebenza.
• Vimbela ukwehluleka okukhulu ngokuqapha ukudlidliza, ukushisa, umsindo, isimo samafutha, kanye nezitayela zokuguguleka ngaphambi kokuba umonakalo usakazeke emigodini, ezindlini nasezivalweni.
• Qondanisa amaqembu okuthenga, ubunjiniyela, kanye nokulungisa ukuze izinqumo eziphathelene nalokhu zisekelwe ezindlekweni eziphelele zobunikazi esikhundleni sentengo yokuqala yokuthenga yodwa.

imibuzo ejwayelekile ukubuzwa

Kungani ukuphila kokuthwala kubalulekile ekusebenzeni kahle kwemishini?

Ukuphila kokuthwala kuthinta ngqo isikhathi sokusebenza, ukusebenza kahle kwamandla, ukudlidliza, umsindo, kanye nezindleko zokulungisa. Njengoba izinkinga ezihlobene nokuthwala zibangela cishe u-51% wokwehluleka kwenjini kagesi, ukuthuthukisa ukuthembeka kokuthwala kunganciphisa kakhulu isikhathi sokungasebenzi esingahleliwe.

Yiziphi izimbangela ezivame kakhulu zokwehluleka kokuthwala ngaphambi kwesikhathi?

Izimbangela ezivamile zifaka phakathi ukukhetha okungalungile kwamabhereyi, ukugcotshwa okungekuhle, ukungcola, ukungahleleki kahle, ukufakwa okungafanele, umthwalo oweqile, ukushisa ngokweqile, kanye nokuqapha isimo okunganele.

Ukugcotshwa okufanele kungayandisa kanjani impilo yenkonzo yokuthwala?

Ukusebenzisa uhlobo olufanele lokuthambisa, ukujiya, ubuningi, kanye nesikhathi sokuphinda kuthambise kunciphisa ukungqubuzana, ukushisa, ukuguguleka, kanye nokugqwala. Kokubili ukuthambisa ngokweqile kanye nokungathambiseki kahle kunganciphisa impilo yokuthwala.

Kufanele kushintshwe nini amabheringi?

Ama-bearings kufanele ashintshwe ngesikhathi sokulungiswa okuhleliwe lapho ukudlidliza, izinga lokushisa, umsindo, ukuhlaziywa kwamafutha, noma idatha yokuhlola kubonisa ukuwohloka. Ukushintsha okubikezelayo kusiza ukugwema ukuvalwa okuphuthumayo kanye nomonakalo wesibili.

Ukukhethwa kwamabhere kuthinta kanjani izindleko eziphelele zobunikazi?

Ukukhetha amabheringi ngokwezidingo zohlelo lokusebenza—hhayi nje intengo yokuthenga—kunciphisa ingozi yokuhluleka, isikhathi sokungasebenzi, abasebenzi, kanye nomonakalo kuma-shaft, ama-hoop, kanye nama-seal. Ibheringi efanele ivame ukwehlisa izindleko zokuphila konke.