(Kuv) lub nra hnyav
Qhov loj me, kev taw qhia thiab xwm ntawm cov load ntawm cov kabmob yog lub hauv paus tseem ceeb rau xaiv hom kabmob.
Thaum xaiv cov kabmob sib txawv raws li qhov loj me ntawm lub nra, vim tias cov khoom tseem ceeb hauv cov kabmob cov menyuam yog cov sib tiv tauj, nws yog qhov tsim nyog los ris lub nra loj, cov kabmob deformation yog qhov me me. Thiab cov kabmob pob yog tsuas yog taw tes sib kis, haum rau cov kabmob lub teeb lossis nruab nrab load, yog li nyob rau hauv lub thauj khoom yog me me, yuav tsum tau xaiv xaiv cov kabmob pob.
Thaum cov kabmob hom tau xaiv raws li cov kev taw qhia ntawm kev thauj khoom, lub thawb kabmob feem ntau raug xaiv rau qhov ntshiab axial load. Thrust npas kabmob tuaj yeem siv rau kev ua haujlwm me me axial load. Thrust cov menyuam kabmob tuaj yeem siv rau qhov loj dua axial load. Rau cov ntshiab radial load, sib sib zog nqus groove pob bearings, cylindrical roller bearings lossis koob bearings feem ntau siv. Thaum cov kabmob cov kabmob yog radial load R, muaj A me me axial load A, tuaj yeem xaiv sib sib zog nqus zaws pob kabmob lossis lub kaum pob hu rau lub pob kabmob lossis cov menyuam sib tw nrog cov menyuam sib dhos Lub Cim; Thaum lub axial load yog loj, lub npov hu ua lub kaum pob lub ntsej muag lossis lub taub ntim cov menyuam nrog cov sib cuag loj Lub kaum ntse ntse tuaj yeem xaiv, lossis cov radial load thiab axial load tuaj yeem nqa los ntawm kev sib xyaw ntawm centripetal bearing thiab thrust bearing.
(2) cov kabmob nrawm
Hauv qhov ceev nrawm, qhov ceev ntawm qhov siab thiab qis ntawm hom xaiv tsis muaj kev cuam tshuam, tsuas yog hauv qhov siab ceev, yuav muaj kev cuam tshuam loj dua. Nlim qhov tseem ceeb ntawm kev txwv ceev ntawm cov kabmob ntawm ntau hom thiab ntau thiab tsawg tau muaj nyob hauv cov qauv coj cov. Qhov ceev no hais txog qhov siab tshaj plaws tau tso cai ceev thaum lub thauj tsis loj dhau (P≤ 0. 1 c, C yog qhov ntsuas lub zog dynamic load), qhov txias txias yog qhov qub, thiab cov kabmob nrog 0-qib kam rau ua yog lub siab tshaj plaws tau tso cai ceev. Txawm li cas los xij, raws li qhov kev txwv ceev ceev tsuas yog txwv los ntawm qhov kub nce siab thaum lub sijhawm ua haujlwm, nws tsis tuaj yeem xav tias qhov kev txwv ceev hauv qhov qauv yog qhov tsis txaus ntseeg kiag li. Yog tias qhov ua hauj lwm nrawm ntawm cov kabmob siab tshaj qhov txwv tsis pub tshaj, kev ntsuas tau teev hauv nqe lus 5 hauv qab no yuav raug coj los ua.
Los ntawm kev ua haujlwm nrawm ntawm cov kabmob xav tau, tuaj yeem txiav txim siab raws li hauv qab no:
1) piv nrog cov menyuam cov kabmob, cov kabmob npas muaj kev txwv ntau dua, yog li thaum muaj kev kub ceev, cov kabmob pob yuav tsum tau xav.
2) nyob rau hauv lub zwj ceeb ntawm tib lub puab, qhov taub loj dua sab nraud yog, lub ntais thiab me dua lub cev yob yuav. Lub zog centrifugal inertia lub zog ntawm lub cev sib dhos ntawm lub nplhaib sab nraud raceway yuav me dua thaum lub sijhawm ua haujlwm, yog li nws tsim nyog rau kev ua haujlwm ntawm lub siab nrawm dua. Thaum muaj kev kub ceev, nws raug nquahu kom xaiv lub teeb ci, lub teeb ci ci thiab lub teeb rau cov kabmob. Cov nplai hnyav thiab hnyav-ntxiv, tsuas yog siv rau kev thauj khoom ntawm lub nrawm hnyav. Yog hais tias lub peev xwm muaj peev xwm ntawm ib qho kev coj ua lub teeb tsis raws li qhov yuav tsum tau ua dhau los, ib qho kev coj tus kheej dav dav tuaj yeem raug txiav txim siab, lossis ob lub teeb bearing series tau muab sib dhos ua ke siv.
3) cov khoom thiab cov qauv ntawm lub tawb muaj cov yam ntxwv zoo ntawm cov kabmob coj ceev. Lub thawv kaw cov khoom tso cai kom muaj kev kub ceev dua li cov ram tawb.
4) tso cai ceev ntawm ntsawj tau tus kabmob yog heev tsawg. Thaum ua haujlwm ceev yog siab, yog tias axial load tsis loj heev, lub npov hu rau lub pob lub kaum sab xis tuaj yeem ua lub zog ntshiab axial quab yuam.
5) yog tias qhov ua haujlwm nrawm dua li qhov siab tshaj qhov teev hauv qhov piv txwv, kev ua haujlwm siab ceev ntawm cov kabmob tuaj yeem txhim kho tau los ntawm kev txhim kho qib kev zam ntawm cov kabmob, lossis ua kom zoo tshaj qhov radial tshem tawm ntawm cov kabmob, xaiv kev ua kom pom lub tshuab ua kom tsis muaj roj los yog roj yuam kev lubrication, thiab ntxiv dag zog rau qhov txias ntawm cov roj circulating. Yog tias qhov kev ua haujlwm ceev tshaj qhov kev txwv ceev ntau dua, yuav tsum xaiv tshwj xeeb qhov kev kub ceev yob sib tw.
(3) qhov ua tau zoo ntawm kev coj ua ntawm kev coj tus kheej
Thaum lub laj kab nruab nrab ntawm tus ncej tsis sib thooj nrog lub nruab nrab kab ntawm lub tsev cov kabmob thiab muaj qhov yuam kev Angle, lossis thaum tus txhav los yog khoov thaum lub zog ntawm tus ncej, lub axis ntawm sab hauv thiab sab nraud ntawm cov kabmob yuav raug deflected. Nyob rau lub sijhawm no, yuav tsum tau siv kom muaj qee lub pob centering lossis cov kabmob centering. Qhov kev coj ua no tuaj yeem ua haujlwm nquag thaum tsis muaj ntau qhov sib txawv ntawm lub nplhaib sab hauv thiab sab hauv.
Cylindrical roller bearings thiab koob rau cov menyuam cov kabmob yog qhov nkag siab tshaj plaws rau kev coj tus kheej. Lub peev xwm muaj peev xwm ntawm cov kabmob no tej zaum yuav qis dua pob ntawm pob kabmob nyob rau hauv qhov chaw mob. Yog li no, thaum lub txhav txhav txhav thiab txoj kev txhawb nqa txhav ntawm cov kabmob qhov rooj nyob hauv tus nqi qis heev, cov kabmob yuav tsum raug zam.
Txhim kho thiab rhuav tshem ntawm cov kabmob
Yooj yim ntawm kev sib dhos thiab rhuav tshem kuj yog qhov tseem ceeb rau hauv kev xaiv ntawm hom kabmob. Thaum tsis muaj qhov sib cais saum npoo ntawm cov kabmob vaj tse thiab cov khoom seem yuav tsum tau nruab thiab rhuav pov tseg raws txoj kab kev qhia, cov kabmob nrog cov cuab yeej sab hauv thiab sab nraud (xws li N0000, NA0000, 30000, thiab lwm yam) yuav tsum tau nyiam. Thaum lub hau ntsaws tau raug teeb tsa ntawm qhov ntev ntev, cov kabmob nrog 1: 12 cov kab xev nyob hauv lub nplhaib sab hauv (rau ntsia ntawm lub pob zeb loj) tuaj yeem xaiv kom yooj yim ntawm kev sib dhos thiab disassembly.
Bearings mounted ntawm lub hav txwv yeem
Ntxiv rau, kev xaiv ntawm cov kabmob hom kuj yuav tsum xav txog qhov yuav tsum tau ua ntawm kev tsim qauv ntawm tag nrho cov khoom siv kabmob, xws li kev teeb tsa kabmob thiab siv cov kev xav tau, kev ua luam dej.