Cov khoom siv lub cev muaj zog nrog cov bearings, los ntawm lub luag haujlwm ntawm cov khoom sib txuas, ob qho tib si hauv qhov kev taw qhia radial thiab axial yog raug rau qhov chaw txwv, qhov kawg ntawm qhov ntawd yuav muaj kev cuam tshuam rau qhov kev tshem tawm ntawm cov kabmob, uas yog manifested nyob rau hauv qhov kev tshem tawm thawj zaug ntawm cov kabmob thiab qhov sib txawv ntawmkev tshem tawm haujlwm.
Qhov kev tshem tawm hauv cov kabmob yog qhov deb tag nrho uas ib lub nplhaib kabmob tuaj yeem txav mus rau hauv radial lossis axial kev taw qhia piv rau lwm lub nplhaib kabmob. Hais txog qhov kev tshem tawm ntawm cov kabmob, yuav tsum muaj qhov sib txawv ntawm qhov kev tshem tawm ua ntej kev teeb tsa thiab qhov kev tshem tawm tom qab kev teeb tsa thiab mus txog nws qhov kub ua haujlwm. Qhov kev tshem tawm ua haujlwm ntawm cov kabmob feem ntau me dua li qhov kev tshem tawm thawj zaug vim yog kev kam rau siab nrog ntau qhov kev cuam tshuam thiab ntau qib ntawm kev nthuav dav thermal ntawm cov nplhaib kabmob thiab cov khoom cuam tshuam (piv txwv li lub cev muaj zog, lub hau kawg, thiab lwm yam), ua rau lub nplhaib nthuav dav lossis nias.
Cov ntsiab cai dav dav ntawm kev tswj hwm thiab kev paub: Qhov kev ua haujlwm ntawm cov kabmob pob yuav tsum yog xoom lossis muaj qhov me me ua ntej. Txawm li cas los xij, rau cov menyuam cylindrical, cov menyuam kheej kheej thiab lwm yam kabmob, yuav tsum muaj qee qhov kev tshem tawm seem hauv kev ua haujlwm, txawm tias nws me heev.
Feem ntau nyob rau hauv cov xwm txheej ua haujlwm ib txwm muaj, qhov kev tshem tawm haujlwm tsim nyog tuaj yeem tau txais los ntawm kev xaiv cov bearings nrog kev tshem tawm pawg sib koom. Txawm li cas los xij, thaum lubkev ua haujlwm thiab kev teeb tsaYog tias cov bearings ntawm ob lub nplhaib sib txawv, lossis qhov kub ntawm lub nplhaib sib txawv heev, ces qhov kev tshem tawm yuav tsum tau xaiv dua li cov pawg loj lossis me ntawm cov bearings.
Nyob ntawm seb daim ntawv thov, cov bearings yuav tsum tau teeb tsa nrog qhov chaw ua haujlwm zoo lossis tsis zoo. Feem ntau, qhov chaw ua haujlwm yuav tsum yog qhov zoo, piv txwv li cov bearings yuav tsum ua haujlwm nrog qee qhov chaw seem. Ntawm qhov tod tes, muaj ntau daim ntawv thov uas qhov chaw ua haujlwm tsis zoo - piv txwv li preload - xav tau.
Kev ua ntej thauj cov bearings siv tau los ua kom cov bearings rigidity lossis rotational precision ntawm cov configurations. Piv txwv li suav nrog spindle bearings hauv cov cuab yeej siv tshuab, pinion bearings hauv automotive driveshafts, bearings hauv me me motors, lossis bearing configurations rau reciprocating txav. Hauv qee daim ntawv thov uas cov bearings tsis, lossis tsuas yog, raug rau me me loads thiab ua haujlwm ntawm high speeds, preload yuav tsum tau siv rau lubkev teeb tsa ntawm cov kabmobHauv qhov no, lub hom phiaj ntawm kev thauj khoom ua ntej yog los muab qhov tsawg kawg nkaus rau cov kabmob kom tiv thaiv cov khoom dov kom tsis txhob plam thiab ua rau puas tsuaj rau cov kabmob.
Nyob ntawm hom bearing, preload yuav yog radial lossis axial. Piv txwv li, cylindrical roller bearings tsuas yog muaj preload thov rau hauv radial direction vim lawv tsim, thaum thrust pob bearings thiab cylindrical roller thrust bearings tsuas yog muaj preload thov rau hauv axial direction. Ib kab angular contact pob bearings thiab tapered roller bearings feem ntau raug rau axial preload thiab feem ntau yog siv rau hauv back-to-back lossis ntsej muag-rau-lub ntsej muag khub nrog lwm tus bearing ntawm tib hom. Deep groove pob bearings feem ntau kuj siv nrog tib axial preload, txhawm rau ua tiav lub hom phiaj ntawm preload, yuav tsum tau siv nrog ib pawg loj dua li ib txwm ntawm radial sab hauv clearance, yog li nws tuaj yeem ua xws li angular contact pob bearings muaj lub kaum sab xis loj dua xoom.
Lub sijhawm tshaj tawm: Lub Rau Hli-05-2024