Dongosolo lothandizira ndi gawo lofunika kwambiri pa ntchito zamagalimoto. Kutenthedwa kwambiri kwa mabearing nthawi zambiri kumakhala chifukwa chachikulu cha kulephera kwa dongosolo lothandizira. Kutentha kwambiri kwa mabearing kungayambitse kuwonongeka ndi kulephera kwa mafuta othandizira, zomwe zimapangitsa kuti mphete zamkati ndi zakunja ndi zingwe za mabearing zisinthe. Muzochitika zochepa, zimapangitsa kuti pakhale vuto la phokoso la mabearing; muzochitika zovuta, zimapangitsa kuti mota yonse igwe chifukwa cha kutopa kwa dongosolo lothandizira. Pa ma mota oyambira, mavuto ndi dongosolo lothandizira ndi ochepa, ndipo kusamalira nthawi zonse ndi chisamaliro mogwirizana ndi zofunikira za kugwiritsa ntchito ndi kukonza kwa mota kungakhale kokwanira. Komabe, pa ma mota omwe amagwiritsidwa ntchito ndi kusintha pafupipafupi, komanso ma mota amphamvu kwambiri komanso amphamvu kwambiri, mavuto ndi dongosolo lothandizira ndi ofala kwambiri ndipo ndi ovuta kuwathetsa.
Kusanthula ndi Chidule cha Zomwe Zimayambitsa Kutentha kwa Magalimoto
(1) Nkhani yofanana pakati pa kuyenererana kwa kulekerera ndi momwe injini imagwirira ntchito. Ponena za vutoli, tachita kusanthula ndi kukambirana m'nkhani yoperekedwa yokhudza ma bearing a mota. Makamaka pamitundu yosiyanasiyana ya ma bearing, kukhutitsidwa kwa chilolezo chawo chogwira ntchito kumadalira kulekerera kwa magawo a zigawo zogwirizana. Mwachitsanzo, chilolezo chogwira ntchito cha ma bearing a mpira wa deep groove chiyenera kulamulidwa mpaka pa zero clearance kapena negative clearance yomangika pang'ono. Ngakhale chilolezo chogwira ntchito cha ma bearing a cylindrical roller chiyenera kukhala positive clearance. Ngakhale chitakhala chaching'ono kwambiri, chiyenera kukhalapo. Ponena za izi, sitidzafotokoza zambiri apa. Komabe, pazinthu zothandiza, nthawi zambiri pamakhala zochitika zomwe bereing fit si yoyenera pazifukwa zina, kapena chifukwa cha kulowererapo, chilolezo chogwira ntchito sichoyenera, ndipo palinso zochitika zomwe bearing imatha chifukwa cha breast clearance yokwanira. Zonsezi zimapangitsa kuti makina oyendetsera ma bearing a mota agwe mkati mwa nthawi yochepa.
(2) Vuto la kutentha kwa ma bearing komwe kumachitika chifukwa cha dzimbiri lamagetsi. Vutoli ndi lofanana ndi vuto la axial current lomwe tidakambirana kale. Chofunikira pakuchitika kwa axial current ndi axial voltage ndi closed circuit. Kwa ma motors omwe amagwiritsidwa ntchito pansi pa mikhalidwe yosiyanasiyana ya ma frequency, komanso ma motors amphamvu kwambiri komanso amphamvu kwambiri, ma degree osiyanasiyana a axial voltage adzapangidwa. Pamene mphamvu ya insulation ya lubricant singapirire axial voltage, axial current yayikulu imapanga closed circuit kudzera mu bearing ndikuyambitsa mavuto a kutentha kwa zigawo za bearing system. Poyamba kutentha, kumaonekera ngati phokoso la bearing limodzi ndi kutentha. Munthawi yochepa kwambiri, chifukwa cha kuwonongeka kwa zigawo za bearing ndi vuto la kutentha, bearing system idzavutika kwambiri.
Pali mavuto ambiri omwe amabwera chifukwa cha mphamvu ya axial. Ma mota ena amatha kugwira ntchito molakwika kwa nthawi yayitali, pomwe ena amatha kulephera kwambiri mkati mwa maola ochepa. Ponena za vutoli, nthawi zambiri limaonedwa ngati vuto la khalidwe la ma bearing. Kusintha ma bearing mobwerezabwereza sikuthetsa vutoli. Kuchitapo kanthu kofunikira panthawi yopanga ndi kupanga, komanso kusankha ma frequency converters apamwamba kwambiri panthawi yogwiritsa ntchito, ndi njira zothandiza kwambiri komanso zofunika.
(3) Mavuto otenthetsera omwe amadza chifukwa cha kusayenerera kwa makina opaka mafuta. Takambirana nkhaniyi m'nkhani zambiri zam'mbuyomu. Vuto limodzi ndi kusayenerera kwa kapangidwe kake. Chipinda cha mafuta cha berejiyo ndi chachikulu kwambiri ndipo sichingayende bwino, zomwe zimapangitsa kuti berejiyo isagwire bwino ntchito; mafuta ambiri amadzazidwa mu berejiyo, zomwe zimapangitsa kuti kutentha kusayende bwino; mafutawo sakugwirizana ndi momwe amagwirira ntchito, zomwe zimapangitsa kuti mafutawo awonongeke chifukwa cha kutentha kapena kupanga ziphuphu chifukwa cha kuzizira, zomwe zonsezi zimapangitsa kuti berejiyo itenthe kwambiri chifukwa cha mafuta ochepa; makamaka panthawi yogwira ntchito ya injini, kukonza nthawi zonse ndi kusamalira ndikofunikira kwambiri.
(4) Mavuto okhudzana ndi kutentha kwambiri kwa ma bearing chifukwa cha kukwera kwa kutentha kwa injini kapena kutentha kwa malo ogwirira ntchito. Ma mota ena ali ndi zofooka zake ndipo amavutika ndi kutentha kwambiri. Ngakhale ma mota ena amagwira ntchito m'malo ovuta, monga ma mota a air compressor omwe amagwira ntchito m'malo otentha kwambiri, izi zimapangitsa kuti pakhale vuto lalikulu pa ma bearing system. Poganizira vutoli, kuyenera kuganiziridwa mokwanira pa zinthu zobearing ndi momwe mafuta opaka mafuta amagwirira ntchito kuti pasakhale mavuto mu ma bearing system.
Zachidziwikire, pali zifukwa zina zambiri zomwe zingayambitse mavuto mu dongosolo la ma bearing. Komabe, bola ngati mfundo zazikulu zafotokozedwa ndipo zomwe zimayambitsa mavutowa zadziwika, chitetezo ndi kukhazikika kwa dongosolo la ma bearing a mota zitha kutsimikizika.
Nthawi yotumizira: Julayi-07-2025