Kev Siv Cov Pob Bearings

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 kom ntseeg tau tias lawv cov kev sib hloov dawb, thaum hloov cov khoom nruab nrab ntawm lawv. Ntawm kev sib hloov ceev (xws li hauv gyro pob bearings) qhov kev siv no tuaj yeem txuas ntxiv kom suav nrog kev sib hloov dawb nrog me ntsis hnav hauv cov kabmob. Txhawm rau ua tiav lub xeev no, ob feem ntawm cov kabmob yog sib cais los ntawm cov kua nplaum nplaum hu ua elastohydrodynamic lubricant film. Denhard (1966) tau taw qhia tias elasticity yog tswj tsis tau tsuas yog thaum lub bearings raug loaded ntawm lub ncej, tab sis kuj thaum lub bearing yog preloaded kom lub positioning raug thiab stability ntawm lub ncej tsis pub tshaj 1 microinch los yog 1 nanoinch Hydrodynamic. lubricating zaj duab xis.

Pob bearings yog siv nyob rau hauv ntau yam tshuab thiab khoom siv nrog rotating qhov chaw. Cov neeg tsim qauv feem ntau yuav tsum tau txiav txim siab seb lub pob bearing lossis cov kabmob ua kua dej yuav tsum tau siv rau hauv ib daim ntawv thov. 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. Tsawg pib kev sib txhuam thiab tsim kev sib txhuam ua haujlwm.

2. tuaj yeem tiv thaiv kev sib xyaw radial thiab axial loads.

8. Tsis rhiab rau kev cuam tshuam ntawm lubrication.

4. Tsis muaj kev ntxhov siab rau tus kheej.

5. Tsawg kub pib yog ib qho yooj yim.

Tsis pub dhau qhov tsim nyog, kev hloov pauv, ceev thiab kev khiav hauj lwm kub tsuas yog cuam tshuam me me rau kev ua tau zoo ntawm lub pob bearing.

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 yog qhov loj.

3. Damping muaj peev xwm tsawg.

4. Lub suab nrov yog siab.

5. Cov kev cai yuav tsum 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. Ntau hom bearings muaj lawv tus kheej tshwj xeeb zoo, thiab hom bearing tsim nyog yuav tsum tau ua tib zoo xaiv rau ib daim ntawv thov. Lub koom haum UK Engineering Science Data Organization (ESDU 1965, 1967) tau muab cov lus qhia tseem ceeb rau qhov tseem ceeb ntawm kev xaiv cov kabmob.