Daim Ntawv Thov Pob Bearing

Lub hom phiaj ntawm lub pob bearing yog los txiav txim qhov txheeb ze ntawm ob qhov chaw (feem ntau yog lub ncej thiab lub vaj tsev) thiab xyuas kom lawv cov kev sib hloov dawb thaum xa cov khoom nruab nrab ntawm lawv. Ntawm kev sib hloov ceev (piv txwv li hauv gyro pob bearings) qhov kev siv no tuaj yeem txuas ntxiv kom suav nrog kev sib hloov dawb nrog me ntsis kom tsis txhob hnav hauv cov bearings. Txhawm rau ua tiav lub xeev no, ob feem ntawm cov kabmob yog sib cais los ntawm cov kua nplaum nplaum hu ua elastohydrodynamic lubricating film. Denhard (1966) tau taw qhia tias cov kabmob muaj peev xwm tswj tau qhov elasticity tsis yog tsuas yog thaum cov kabmob thauj khoom ntawm lub ncej, tab sis kuj thaum cov kabmob yog preloaded kom qhov chaw raug thiab ruaj khov ntawm cov ncej tsis pub tshaj 1 microinch lossis 1 nanoinch Hydrodynamic Lubricating. Zaj movie [1].
Pob bearings yog siv nyob rau hauv ntau yam ntawm cov cav tov thiab cov khoom uas muaj rotating qhov chaw. Cov neeg tsim qauv feem ntau yuav tsum tau txiav txim siab seb lub pob bearing lossis cov kua dej yeeb yaj kiab yuav tsum tau siv rau ib daim ntawv thov tshwj xeeb. Cov yam ntxwv hauv qab no ua rau pob bearings xav tau ntau dua li cov kua dej hauv cov yeeb yaj kiab hauv ntau daim ntawv thov,
1. Kev sib txhuam pib me me thiab kev sib txhuam ua haujlwm yog tsim nyog.
2. Muaj peev xwm dais radial thiab axial joint load.
8. Insensitive rau cuam tshuam ntawm lubrication.
4. Tsis muaj qhov tshwm sim tsis txaus ntseeg ntawm tus kheej.
5. Yooj yim pib ntawm qhov kub thiab txias.
Tsis pub dhau qhov kev txwv tsim nyog, qhov sib txawv ntawm qhov sib txawv, qhov nrawm thiab kev ua haujlwm kub tsuas muaj qhov cuam tshuam me me rau kev ua haujlwm zoo ntawm pob bearings.
Cov yam ntxwv hauv qab no ua rau cov pob bearings tsawg dua li cov kua dej hauv cov kabmob.
1. Lub neej qaug zog kawg sib txawv heev.
2. Qhov chaw radial xav tau loj dua.
3. Tsawg damping muaj peev xwm.
kuv. Lub suab nrov yog siab. ·
6. Cov kev cai sib tw yog nruj dua.
6. tus nqi siab dua.
Raws li cov yam ntxwv saum toj no, lub tshuab piston feem ntau siv cov kua dej ua yeeb yaj kiab, thaum lub tshuab dav hlau yuav luag tsuas yog siv pob bearings. Txhua hom kabmob muaj nws qhov tshwj xeeb zoo, thiab hauv ib daim ntawv thov, hom kabmob uas haum tshaj plaws yuav tsum tau ua tib zoo xaiv. Lub koom haum British Engineering Science Data Organization (ESDU 1965, 1967) tau muab cov lus qhia tseem ceeb rau cov teeb meem tseem ceeb ntawm kev xaiv cov kabmob.