Cov kabmob clearance, tseem hu ua kev tshem tawm sab hauv, yog cov txheeb ze txav tau ntawm sab hauv thiab sab nraud ntawm cov kabmob ua ntej nws mounted rau hauv tus ncej lossis mus rau hauv lub tsev. Nws yog qhov tseem ceeb tseem ceeb uas cuam tshuam rau kev ua haujlwm ua haujlwm thiab kev ua haujlwm ntev ntawm cov kabmob dov. Nyob ntawm cov kev taw qhia ntawm kev txav, tshem tawm yog categorized raws li ib qhotshem tawmlossisAxial clearanceCov. Thaum cov kabmob tau txais kev pabcuam, qhov kev tshem tawm no tau xa mus rau raws liKev Ua Haujlwm Kev Ua Haujlwm.
1. Qhov tseem ceeb ntawm kev pom tseeb
Cov kev ua haujlwm ntawm kev ua haujlwm ntawm cov kabmob ncaj qha rau ntau qhov kev ua tau zoo, suav nrog:
Kev sib hloov precision
Dov lub neej qaug zog lub neej
KUB KOM
Suab nrov thiab qib kev co
Kev tshem tawm tsis raug yuav ua rau muaj teeb meem tseem ceeb:
Kev tshem tawm ntau dhauCov txiaj ntsig hauv kev txo cov rolling cov ntsiab sib qhia sib qhia lub nra, uas nce qib kev sib hloov, nce qib, thiab luv lub neej pabcuam.
Tsis txausCov kev ua kom muaj kev sib txhuam thiab kev ua haujlwm ua haujlwm, nrawm hnav, thiab muaj mob hnyav, yuav ua rau cov kabmob mus txeeb thaum lub sijhawm ua haujlwm.
Yog li ntawd, kho kho kom haum thiab tswj cov kabmob ntawm lub sijhawm ua ke yog qhov tseem ceeb.
Cylindrical Cov Menyuam Cov Kabmob - Siv Rau Rolling Mills
Rod Zeb Bearings
Rolling Zeb Bearings
Rolling Mill Chais
2. Radial Sab Hauv Cov Kev Kawm Txawj Ntse
Bearings yog tsim nrog ntau chav kawm, feem ntau tau cais raws li hauv qab no (muaj nuj nqis hauv cov kabmob cylindrical):
| Chav Kawm Tawm Tsam | Min (μm) | Max (μm) |
|---|---|---|
| C2 (tsawg dua li ib txwm) | 10 | 95 |
| C0 (ib txwm) | 20 | 145 |
| C3 (ntau dua li ib txwm) | 35 | 390 |
| C4 | 45 | 470 |
| C5 | 60 | 570 |
Lwm yam tsis paub:
C1- sib dua C2
CN- Txheem (feem ntau rho tawm hauv naming)
MC3- Txuj ci radial clearance rau tej yam me me thiab me-loj pob bearings
MC1 - MC6- Cov chav kawm tshem tawm cov chav kawm me me, xws li los ntawm kev sib zog (MC1) kom xoob (MC6)
Rau cylindrical cov menyuam bearings:
CC1 rau CC5- Zoo sib xws li saum toj no, nrogCC3feem ntau suav tias yog tus qauv.
Kev tshem tawm tshwj xeeb xws liCm(siv nyob rau hauv cov ntaub ntawv hluav taws xob lub cev muaj zog) thiabCTtseem muaj nyob rau hom kis tshwj xeeb.
3. Xaiv cov kev qhia tau zoo
Xaiv cov kev paub tseeb yog nyob ntawm ntau yam:
Daim Ntawv Thov Hom(piv txwv li, hluav taws xob tshuab hluav taws xob, tshuab tshuab spindles)
Kev Ua Haujlwm Kub thiab nrawm
Thauj Hom thiab taw qhia
Lubrication cov xwm txheej
Suab nrov thiab kev co rhiab siab
Cov Lus Qhia Dav Hlau:
Kev ceev ceev, qhov ntsuas kub siab, lossis cov ntawv thov txiav tawm tsawg → kev tshem tawm qhov loj dua (piv txwv li C3, C4)
Precision daim ntawv thov (piv txwv li, ntxaiv) → me me clearance (piv txwv li, c1)
Bearings nrog xav nruj ntom thiab cov tsev nyob kom haum → Qhov pib tshem tawm kom tshem tawm cov kev txo qis
Tsab ntawv: TusKev Ua Haujlwm Kev Ua HaujlwmTom qab mounting feem ntau yog me dua li thawj qhov tsis pom zoo vim kev cuam tshuam thiab cua sov nthuav dav.
4. Cov tswv yim hloov kho rau cov kabmob tsis pom tseeb
Kho kom haum cov kabmob sib txig yog qhov tseem ceeb thaum sib dhos kom ntseeg tau tias kev ua tau zoo tshaj plaws. Muaj ob txoj hauv kev tseem ceeb:
A. Kev Kho Mob Mechanical
Kev siv ntawmshims, Kho Cov Txiv Ntseej, lossisLub Nkoj Rings
Precision haum thiab sib ncag
Haum rau feem ntau cov qauv thiab cov menyuam cov kabmob sib dhos
B. Kev kho dua tshiab Preload
Thov axial quab yuam kom tshem tawm cov kev tshem tawm tag nrho
Siv thaum muaj kev kub siab lossis qhov chaw ua kom raug
Tuaj yeem thov ntawm springs lossis xov preloading tshuab
5. Cov piv txwv siv tau ntawm kev hloov kho
Cylindrical thiab Elliptical Journal Xov Xwm Bearings:
Sab kev tshem tawmHloov kho: manually scapap rau saum npoo lossis ntxiv shims ntawm kab sib cais, ces tshuab thiab txhuam.
Sab saum toj tshemHloov kho: tib yam li saum toj no.
Tsau Ntau-Npoo Bearings:
Tsis pom zoo rau scraping lossis phau ntawv tshem tawm kev hloov kho.
Hloov nrog cov kabmob tshiab yog tias tshem tawm tsis yog nyob hauv kev qhia tshwj xeeb.
Tilting Pad Bearings:
Pads tsis yog yuav tsum tau scraped.
Clearance yog kho los ntawm kev ntxiv cov hlau nplaum uas tsis muaj quav qab ntawm cov ntaub qhwv lossis hloov cov tuab ntawm cov blocks.
Thickness hloov ntawm cov ntaub qhwv hauv cov teeb yuav tsum tsis pub dhau 0.01 hli.
Tapered Cov Menyuam Bearings:
Txheeb xyuas cov lej: Ncej yuav tsum yog kab rov tav, thiab coj cov nplhaib txiav.
Tig ncej mus saib Dov Khoom Siv Khoom Zog Zog:
4-5 Collers zawv zawg → ntau dhau Axial Clearance
Tag nrho cov ntaub yob rolling → tawv heev
Qhov zoo tagnrho: 2-3 chais zawv zawg → Optimal Clearance
Tapered Cov Menyuam Bearings
Ob Chav Rapered Cov Menyuam Bearings
Plaub-kab tapered rau cov menyuam bearings
Ib Leeg Kab Tapered Cov Menyuam Cov Kabmob
6. Cov kev txiav txim siab zaum kawg
Thaum hloov kho, ntau txoj hauv kev yuav tsum tau siv ua ke rau kev txheeb xyuas qhov tseeb. Nws yog qhov tseem ceeb uas xav txog qhov cuam tshuam ntawm:
Kev khiav hauj lwm kub
Lubrication zoo
Thermal nthuav tawm thaum lub sijhawm ua haujlwm
Kev hloov kho-kho, tsis muaj kev hloov pauv khiav ua raws li los ntawm kev kuaj xyuas kom ntxaws thiab kev kho kom zoo tshaj plaws. Precision hauv cov kabmob hauv kev hloov kho txoj kev hloov kho tsis tsuas yog ncua kev pabcuam lub neej tab sis kuj ua kom muaj kev txhim khu kev qha thiab ua kom tau zoo.
Tag
Cov kabmob clearance yog ntau tshaj li qhov kev qhia tshwj xeeb-nws yog qhov tseem ceeb ntawm cov khoom siv nyiaj, kev ua tau zoo, thiab kev nyab xeeb ntawm kev tig machines. Txawm hais tias nyob rau hauv high-ceev spindles lossis hnyav-thauj cov khoom siv ua liaj ua teb, kev nkag siab thiab kho kom meej yog qhov tseem ceeb. Cov kws tsim khoom thiab cov kws tshaj lij yuav tsum muaj cov kev paub sib txawv ntawm cov kev kawm, ntsuas kev ntsuas, kev kho kom haum kom muaj cov cuab yeej siv ntawm cov kev ua tau zoo.