Ekucutshungulweni kwemishini, ukusetshenziswa kwama-bearings kuvame kakhulu, kodwa kuhlale kukhona abanye abantu abangaziqondi izinkinga ezithile ekusetshenzisweni kwama-bearings, njengokungaqondi kahle okuthathu okwethulwe ngezansi.
Inganekwane 1: Akuwona yini ama-bearings asezingeni?
Umuntu obeka lo mbuzo unokuqonda okuthile ngama-bearings, kodwa akulula ukuphendula lo mbuzo.Kumele kushiwo ukuthi ama-bearings ayizingxenye ezijwayelekile hhayi izingxenye ezijwayelekile.
Isakhiwo, ubukhulu, umdwebo, ukumaka kanye nezinye izici zezingxenye ezijwayelekile zilinganiselwe ngokuphelele.Kubhekiselwa ekuthwaleni kohlobo olufanayo, usayizi wesakhiwo esifanayo, nokushintshana kokufaka.
Isibonelo, ama-bearings angu-608, ubukhulu bawo bangaphandle bungu-8mmx ububanzi bangaphakathi obungu-22mmx ububanzi obungu-7mm, okusho ukuthi, ama-bearings angu-608 athengwe kwa-SKF kanye nama-bearings angu-608 athengwe e-NSK yizilinganiso ezifanayo zangaphandle, okungukuthi, ukubukeka okude.
Ngalo mqondo, uma sithi ukuthwala kuyingxenye evamile, kubhekisela kuphela ekubukekeni okufanayo nasekhanda.
Incazelo yesibili: ama-bearings awazona izingxenye ezijwayelekile.Isendlalelo sokuqala sisho ukuthi, kuma-bearings angu-608, ubukhulu bangaphandle buyafana, obungaphakathi bungase bungafani!Okuqinisekisa ngempela ukusetshenziswa kwesikhathi eside amapharamitha esakhiwo sangaphakathi.
I-bearing engu-608 efanayo, ingaphakathi lingahluka kakhulu.Isibonelo, imvume ingaba yi-MC1, MC2, MC3, MC4, ne-MC5, kuye ngokubekezelela okufanele;Amakheji angenziwa ngensimbi noma ngepulasitiki;Ukunemba kungaba P0, P6, P5, P4 njalonjalo ngokwenhloso yokukhetha;Ukugcoba kungakhethwa kusuka ekushiseni okuphezulu kuya kokuphansi ngezindlela ezingamakhulu ngokusho kwezimo zokusebenza, kanye nenani lokuvalwa kwamafutha lihlukile.
Ngalo mqondo, sithi ukuthwala akuyona ingxenye ejwayelekile.Ngokwezimo ezithile zokusebenza, ungahlinzeka ngokusebenza okuhlukile kwama-bearings angu-608 ngokukhetha kwakho.Ukuze wenze kube okujwayelekile, kuyadingeka ukuchaza imingcele yokuthwala (usayizi, ifomu lokuvala, impahla yekheji, imvume, amafutha, inani lokuvala, njll.).
Isiphetho: Kuma-bearings, akumele nje uwabheke njengezingxenye ezijwayelekile, kufanele siqonde incazelo yezingxenye ezingajwayelekile, ukuze sikhethe ama-bearings afanele.
Inganekwane yesi-2: Ngabe ama-bearings akho azohlala iminyaka eyi-10?
Isibonelo, uma uthenga imoto, isitolo se-4S siyayidayisa futhi umenzi uyaziqhenya ngewaranti yeminyaka engu-3 noma amakhilomitha angu-100,000.Ngemuva kokuyisebenzisa isigamu sonyaka, uthola ukuthi isondo liphukile futhi ufune isitolo se-4S ukuze uthole isinxephezelo.Kodwa-ke, utshelwa ukuthi ayimboziwe iwaranti.Kubhalwe ngokucacile encwadini yewaranti ukuthi iwaranti yeminyaka emithathu noma amakhilomitha angu-100 000 inemibandela, futhi iwaranti ngeyezingxenye eziyinhloko zemoto (injini, u-gearbox, njll.).Isondo lakho liyingxenye egqokwayo futhi alikho kuhlelo lwewaranti.
Ngifuna ukukubeka kucace ukuthi iminyaka emithathu noma u-100,000 wamakhilomitha owacelayo inemibandela.Ngakho-ke, uvame ukubuza ukuthi "ingabe ama-bearings angahlala iminyaka eyi-10?"Kukhona nezimo.
Inkinga oyibuzayo impilo yesevisi yama-bearings.Ngempilo yesevisi yama-bearings, kufanele kube impilo yesevisi ngaphansi kwezimo ezithile zesevisi.Akunakwenzeka ukukhuluma ngempilo yesevisi yama-bearings ngaphandle kokusebenzisa izimo.Ngokufanayo, iminyaka yakho eyi-10 kufanele futhi iguqulwe ibe amahora (h) ngokuya ngemvamisa ethile yokusetshenziswa komkhiqizo, ngoba ukubala kokuzala akukwazi ukubala unyaka, kuphela inani lamahora (H).
Ngakho-ke, yiziphi izimo ezidingekayo ukuze ubale impilo yesevisi yama-bearings?Ukuze ubale impilo yesevisi yama-bearings, ngokuvamile kuyadingeka ukwazi amandla okuthwala (i-axial force Fa kanye ne-radial force Fr), isivinini (ijubane lokugijima, ukugijima okufanayo noma ukuguquguquka kwejubane), izinga lokushisa (izinga lokushisa emsebenzini).Uma kuyi-bearing evulekile, udinga futhi ukwazi ukuthi yimaphi amafutha okugcoba okufanele uwasebenzise, ukuthi ahlanzeke kangakanani nokunye.
Ngalezi zimo, sidinga ukubala izimpilo ezimbili.
Impilo 1: Impilo eyisisekelo elinganiselwe yokuthwala i-L10 (hlola ukuthi kwenzeka isikhathi esingakanani ukukhathala kokukhathala)
Kufanele kuqondwe ukuthi impilo eyisisekelo elinganiselwe yama-bearings ukuhlola ukukhuthazela kwama-bearings, futhi impilo yokubala yethiyori ye-90% yokwethembeka inikezwa ngokuvamile.Le fomula iyodwa ingase inganele, isibonelo, i-SKF noma i-NSK ingase ikunike ama-coefficients okulungisa ahlukahlukene.
Impilo yesibili: isilinganiso sempilo yamafutha L50 (igrease izokoma isikhathi esingakanani), ifomula yokubala yomkhiqizi ngamunye othwalayo ayifani.
Ukuthwala isilinganiso sempilo yamafutha L50 ngokuyisisekelo kunquma impilo yokugcina yesevisi yokuthwala, kungakhathaliseki ukuthi yinhle kangakanani ikhwalithi, awekho amafutha okugcoba (amafutha ayoma), kungaba isikhathi esingakanani ukungqubuzana komile?Ngakho-ke, isilinganiso sempilo yamafutha L50 ngokuyisisekelo ibhekwa njengempilo yokugcina yesevisi ye-bearing (inothi: isilinganiso sempilo yamafutha L50 impilo ebalwa ngefomula yokuhlola enokwethenjelwa kuka-50%, okungokwereferensi kuphela futhi inenani elikhulu. ukuhlukanisa ekuhlolweni kwangempela).
Isiphetho: Ukuthi ukuthwala kungasetshenziswa isikhathi esingakanani kuncike ezimweni zangempela zokuthwala.
Inganekwane yesi-3: Ama-bearings akho ama-brittle kangangokuthi awela ngaphansi kwengcindezi
Ukuthwala ingcindezi emnene kulula ukuba nomsindo ongajwayelekile, okubonisa ukuthi izibazi zangaphakathi ezithwele, khona-ke, kukhiqizwa kanjani izibazi zangaphakathi ezithwele?
Lapho ukuthwala kuvame ukufakwa, uma indandatho yangaphakathi iyindawo yokuhlangana, khona-ke indandatho yangaphakathi izocindezelwa, futhi indandatho yangaphandle ngeke igcizelelwe, futhi ngeke kube nezibazi.
Kodwa kuthiwani uma, esikhundleni sokwenza lokho, izindandatho zangaphakathi nezangaphandle zigcizelelwe ngokuhlobene?Lokhu kubangela ukuhlehliswa kwe-Brinell, njengoba kuboniswe ngezansi.
Yebo, ufunda kahle, kuyiqiniso elinjalo elinonya, uma indandatho ethwala ingcindezi yangaphakathi nangaphandle, ingcindezi emnene, ukuthwala kulula ukukhiqiza ukuhlehla komonakalo ebusweni bebhola lensimbi kanye nomgwaqo womjaho, bese kuveza umsindo ongajwayelekile. .Ngakho-ke, noma iyiphi indawo yokufaka engase yenze amandla ahlobene nebhere iringi yangaphakathi nangaphandle ingase ibangele umonakalo ngaphakathi kwebheringi.
Isiphetho: Njengamanje, cishe amaphesenti angama-60 omsindo ongajwayelekile ubangelwa ukuthwala umonakalo obangelwa ukufakwa okungafanele.Ngakho-ke, kunokuba uzame ukuthola inkathazo yabakhiqizi abathwalayo, kungcono ukusebenzisa amandla obuchwepheshe abakhiqizi abathwalayo ukuhlola ukuma kwabo kokufaka, kungakhathaliseki ukuthi kunezingozi nezingozi ezifihliwe.
Isikhathi sokuthumela: Apr-12-2022