Yantai Bonway Manufacturer

Pob kabmob

Cov kabmob pob yog ib hom kev sib tw dov. Spherical alloy steel pob tau teeb tsa nruab nrab ntawm lub nplhaib sab hauv thiab lub nplhaib sab nraud kom txo kev sib txhuam hauv cov txheej txheem hluav taws xob thiab txhim kho kev sib kis ntawm cov tshuab muaj zog los ntawm dov. Cov kabmob pob tsis tuaj yeem tiv taus cov kev thauj khoom hnyav thiab muaj ntau yam hauv lub tshuab kev lag luam teeb pom kev zoo. Pob bearings tseem hu ua pob bearings.

Cov kabmob pob tsuas yog suav nrog plaub lub hauv paus ntsiab lus: pob, lub nplhaib sab hauv, lub nplhaib sab nraud, thiab lub tawb lossis tus tuav. Cov pob khoom lag luam dav dav tau raws li AISI52100 tus qauv. Cov pob thiab cov nplhaib feem ntau yog ua los ntawm high chromium steel, nrog Rockwell C-nplai tawv ntawm 61-65.

Cov kabmob pob kev ua tau zoo:
Lub hardness ntawm tus khaws tau qis dua li ntawm cov pob thiab cov nplhaib, thiab nws cov khoom siv yog hlau (xws li cov pa roj carbon nruab nrab, aluminium alloy) lossis tsis yog hlau (xws li Teflon, PTFE, cov ntaub ntawv polymer). Dov cov kabmob (dov cov kabmob) muaj qis dua kev sib txhuam tig dua li cov kabmob (phau ntawv sau xov xwm), yog li ntawm tib lub ceev, qhov kub vim los ntawm kev sib txhuam yuav qis dua.
Pob lub pob yog feem ntau siv nyob rau hauv qis-thauj cov khoom siv ntawm cov khoom siv. Vim hais tias thaj chaw cov kabmob ntawm pob bearings yog me me, loj heev kev puas tsuaj ntawm cov khoom lag luam yog nws tshwm sim nyob rau hauv kev ua haujlwm siab, yog li rab koob cov menyuam cov kabmob feem ntau siv nyob rau hauv lub nra hnyav thauj khoom siv los ua kom cov kabmob qhov chaw, txhim kho kev siv tshuab ua haujlwm zoo, thiab txo Mechanical kev puas tsuaj.
Cov kabmob pob tau hloov pauv kev sib txhuam ntawm cov kabmob thiab adopts dov kev sib txhuam. Hom no ua tau zoo dua los txo qhov kev sib txhuam ntawm qhov kev coj tus kheej, txhim kho cov kev pabcuam lub neej ntawm tus kiv cua kabmob, thiab yog li txuas ntxiv rau kev pabcuam lub neej ntawm radiator. Qhov tsis zoo yog tias cov txheej txheem cov nyom ntau dua, cov nqi nce ntxiv, thiab nws kuj coj tau suab nrov dua ua haujlwm.

1. nta
FAG sib sib zog nqus groove pob bearings yog cov khoom sib cais tsis sib xws muaj cov khoom sib dhos sab hauv thiab sab nrauv, muaj lub tawb thiab cov pob steel, uas muaj ntau yam. Cov khoom lag luam yog yooj yim hauv cov qauv, txhim khu kev qha thiab ruaj khov, thiab yooj yim rau kev tswj. Nws muaj ntau tus qauv tsim xws li ib-kab, ob-kab, qhib thiab ntim. Vim tias cov txheej txheem thev naus laus zis, lub nplhaib sab nraud ntawm txoj kev qhib cov kabmob tau nruab nrog zawj rau lub nplhaib sib khi lossis hmoov av npog. Vim tias qhov tsis tshua muaj qhov sib txhuam torque, sib sib zog nqus zawj pob bearings yog qhov tsim nyog rau kev ua haujlwm siab.
2. Radial thiab axial bearing muaj peev xwm
Vim muaj cov duab geometry ntawm kev sib tw thiab kev siv cov khoom siv hlau ua cov khoom sib dhos, qhov no hom ntawm qhov sib sib zog nqus zaws pob tau cov kabmob tuaj yeem sib law sib nraus load thiab radial load.
3. Lub kaum kev them nyiaj tsis raug
FAG ib kab sib sib zog nqus groove pob bearings muaj cov peev xwm them nyiaj tsis raug, yog li cov kabmob yuav tsum tau muab tso rau qhov chaw yog. Kev ua haujlwm tsis zoo yuav ua rau cov ntsiab lus yob nyob hauv lub xeev tsis tsim nyog, thiab kev ntxhov siab sab hauv ntawm cov kabmob yuav nce ntxiv, thiaj li ua rau lub neej ua haujlwm ntev ntawm cov kabmob. Txhawm rau txwv qhov kev ntxhov siab ntxiv ntawm cov kabmob mus rau qhov qis dua, rau ib kab sib sib zog nqus zaws pob bearings tsuas yog lub kaum sab xis me me (nyob ntawm qhov loj me ntawm lub nra) thiab cov khoom thauj axial muaj peev xwm tso cai. Vim nws cov yam ntxwv sab hauv, ob chav sib sib zog nqus groove pob bearings tsis muaj misalignment muaj peev xwm them taus. Thaum siv cov kabmob no, tsis pub qaij kaum sab xis tso cai.
Plaub, ua haujlwm kub
Kev ua haujlwm kub ntawm FAG qhib sib sib zog nqus groove pob bearings tsis yog siab tshaj + 120 ℃. Thaum qhov ntsuas kub ua haujlwm siab dua li + 120 ℃, thov hu rau peb. Txoj kab uas hla sab D ntawm cov kabmob yog ntau dua 240 hli, thiab nws qhov ntsuas qhov kub qhov kev ruaj ntseg tuaj yeem ncav cuag + 200 ℃. Cov ua haujlwm kub ntau ntawm cov di ncauj-kaw sib sib zog nqus groove pob bearings yog –30 ° C rau + 110 ° C, uas yog txwv los ntawm lawv cov roj thiab muab cov khoom ntim nplhaib. Kev ua haujlwm kub ntau ntawm cov kis-kaw cov kabmob yog -30 ℃ txog + 120 ℃. Qhov siab tshaj plaws ua haujlwm kub ntawm cov kabmob nrog iav fiber ntau txhawb cov nylon lub tawb tsis pub dhau + 120 ° C.
Tsib, tawb
FAG sib sib zog nqus groove pob kabmob qauv tsis muaj tawb txuas nrog siv stamped steel tawb. Cov kabmob ua ke ntawm cov hlau pob coj kev dag dag lub tawb kaw ntom nti yog M. Cov tsiaj ntawv Y qhia tau hais tias cov kabmob tawb yog stamped tooj dag. Ob chav kab sib sib zog nqus groove pob bearings, nws lub tawb yog ua los ntawm cov iav fiber reinforced nylon (suffix TVH). Tshawb xyuas qhov tshuaj lom neeg ruaj khov ntawm nylon los ua cov roj hluavtaws thiab cov roj nplua nyeem uas muaj qhov sib xyaw ua kom hnyav. Thaum sov siab, cov tshuab ua kom laus thiab roj ntxiv yuav txo qhov kev ua haujlwm ntawm nylon tawb. Lub sijhawm hloov roj yuav tsum ua raws.

Cov kabmob uas muaj nws tus kheej sib dhos yog cov kabmob uas muaj cov ntxig sib dhos ntawm lub nplhaib sab hauv ntawm ob lub haiv neeg thiab lub nplhaib sab nraud uas nws txoj kev sib tw yog kheej kheej. Nws tuaj yeem dais ntau qhov hnyav radial, tab sis kuj tuaj yeem dais qee qhov load ntawm axial. Lub nplhaib sab nrauv txoj kev sib tw ntawm hom ntawm cov kabmob no yog kheej kheej. Yog li nws muaj nws tus kheej-kawm cov kev kawm.
Cov yam ntxwv tseem ceeb ntawm kev coj tus kheej cov pob khoom muaj txiaj ntsig yog:
(1) lub nplhaib sab nraud ntawm txoj kab sib dhos ntawm tus kheej sib dhos pob yog ib feem ntawm qhov chaw kheej, thiab qhov chaw nruab nrab ntawm qhov nkhaus yog nyob ntawm txoj kab cov kabmob. Yog li ntawd, cov kabmob muaj cov haujlwm nws tus kheej. Thaum tus nqaj thiab vaj tsev nyob tsis zoo, nws tuaj yeem hloov kho tam sim ntawd. Tsis muaj lub nra hnyav ntxiv.
(2) Nws tuaj yeem dais radial load thiab load axial tsim nyog hauv ob qhov kev qhia. Tab sis nws tsis tuaj yeem dais lub sijhawm thauj khoom.
Lub kaum sab xis tiv thaiv ntawm hom kabmob no yog me me, lub kaum sib tiv tauj yuav luag tsis hloov nyob rau hauv kev thauj khoom axial, lub peev xwm thauj axial yog me me, radial load muaj peev xwm loj, thiab nws tsim nyog rau lub nra hnyav thiab cuam tshuam kev thauj.
(3) Muab ob npaug rau cov kabmob ntawm tus kheej sib luag pob cov kabmob nrog lub tes tsho sib dhos thiab cov xauv pob khoom tuaj yeem ntsia tau rau ntawm txhua qhov chaw ntawm lub qhov kho qhov muag tsis muaj qhov xav tau muab tso rau lub xub pwg nyom.

siv:
Lub hom phiaj ntawm pob kabmob yog los txiav txim siab qhov chaw txheeb ze ntawm ob ntu (feem ntau yog ua haujlwm thiab lub rooj zaum cov kabmob) thiab kom paub tseeb tias lawv cov kev sib hloov dawb, thaum xa cov thauj mus los ntawm lawv. Thaum muaj kev kub ceev (xws li hauv gyro pob bearings), qhov kev siv no tuaj yeem txuas ntxiv kom muaj kev sib hloov dawb nrog yuav luag tsis muaj hnav nyob rau hauv cov kabmob. Yuav kom ua tiav lub xeev no, cov kua nplaum nplaum ua yeeb yaj kiab hu ua elastohydrodynamic lubricating zaj duab xis tuaj yeem siv los cais ob ntu ntawm cov kabmob. Denhard (1966) taw qhia tias kev hloov pauv tsis tuaj yeem tswj tsis tau tsuas yog thaum cov kabmob dais cov kabmob ntawm lub tsaj, tab sis kuj thaum lub kabmob tau thauj khoom ua ntej kom txoj haujlwm tso qhov tseeb thiab qhov ruaj ntseg ntawm lub tsho tsis pub dhau 1 microinch lossis 1 nanoinch. Hydrodynamic lubrication film [1].
Cov pob kabmob tau siv nyob rau hauv ntau lub tshuab thiab khoom siv nrog qhov sib hloov. Cov neeg tsim qauv feem ntau yuav tsum txiav txim siab seb puas yuav siv lub npas kabmob lossis dej ntim cov yeeb yaj kiab tso rau hauv ib daim ntawv thov tshwj xeeb. Cov cwj pwm hauv qab no ua rau pob bearings xav tau ntau dua li cov dej zaj duab xis bearings hauv ntau qhov xwm txheej,
1. Kev pib txhuam yog me me thiab kev ua haujlwm kev sib txhuam yog qhov tsim nyog.
2. tuaj yeem tiv kev ua ke ntawm cov radial thiab axial ua ke.
8. Tsis rhiab rau cuam tshuam ntawm lubrication.
4. Tsis muaj kev ua si txaus siab rau tus kheej.
5. Yooj yim pib ntawm qhov kub tsawg.
Tsis pub dhau ib qho kev tsim nyog, hloov lub ntsaws, hloov nrawm thiab ua haujlwm kub tsuas yog cuam tshuam me me rau qhov kev ua tau zoo ntawm cov kabmob pob.
Cov cwj pwm hauv qab no ua rau pob bearings tsis txaus siab dua li cov kua roj zaj duab xis bearings.
1. Lub neej tsis muaj kev ua rog lub neej nws txawv heev.
2. Qhov chaw radial xav tau yog qhov loj.
3. Lub peev txheej damping tau tsawg tsawg.
I. Qeb siab nrov. ·
6. Cov kab sib dhos yuav tsum ua kom nruj.
6. ntau dua tus nqi.
Raws li cov yam ntxwv saum toj no, lub cav piston feem ntau siv cov nplaim dej zaj duab xis bearings, thaum lub dav hlau cav yuav luag tsuas yog siv cov pob bearings. Ntau hom ntawm cov kabmob muaj lawv qhov sib txawv tshwj xeeb. Hauv daim ntawv thov, hom kabmob tsim nyog tshaj yuav tsum tau ua tib zoo xaiv. Lub koom haum British Engineering Scientific Data Organisation (ESDU 1965, 1967) tau muab cov lus qhia tseem ceeb rau qhov teeb meem tseem ceeb ntawm kev xaiv kabmob.

Cov kabmob clearance:
Bearing clearance (sab hauv kev qhia meej) yog hais txog qhov kev ncua deb uas lub nplhaib coj tau txav mus rau hauv ib qho kev coj ua ntu zus mus rau lwm lub nplhaib ua ntej cov kabmob tau nruab nrog lub thawb lossis cov kabmob tsev nyob. Raws li cov kev taw qhia txav mus los, nws tuaj yeem faib ua qhov radial kev tshem tawm thiab axial clearance, raws li qhia hauv daim duab 1.
Kev tshem tawm sab hauv ntawm cov kabmob ua ntej kev teeb tsa yuav tsum pom qhov txawv ntawm sab hauv (kev ua haujlwm tshem tawm) ntawm cov kabmob thaum ua haujlwm kub tau mus txog tom qab kev teeb tsa. Tus thawj sab hauv kev ntshiab (ua ntej kev teeb tsa) feem ntau ntau dua li kev ua haujlwm tshem tawm. Qhov no yog vim muaj qhov sib txawv ntawm qhov sib txawv ntawm kev koom ua ke hauv kev teeb tsa thiab qhov sib txawv ntawm qhov thermal nthuav ntawm cov kabmob sab hauv thiab sab nraud ntawm cov kabmob thiab cov khoom sib thooj uas ua rau cov nplhaib sab hauv thiab sab nraud nthuav lossis sib cog lus.
Cov kabmob sab hauv tshem thiab teev tus nqi
Qhov loj ntawm cov kev ua haujlwm sab hauv (tseem hu ua qhov kev tshem tawm) ntawm cov kabmob sib dhos hauv kev ua haujlwm tau muaj kev cuam tshuam zoo rau cov kabmob kev ua tau zoo xws li lub neej qaug zog, kev co, suab nrov, thiab nce siab.
Yog li, kev xaiv sab hauv kev tshem tawm cov kabmob yog ib txoj haujlwm tshawb fawb tseem ceeb rau cov kabmob uas txiav txim siab qhov kev teeb tsa loj.
Feem ntau, txhawm rau kom tau txais tus nqi ntsuas ruaj khov, kev ntsuas kev ntsuas tshwj xeeb tau muab rau cov kabmob, thiab tom qab ntawv qhov kev tshem tawm tau kuaj. Yog li, tus ntsuas ntsuas cov nqi yog qhov loj dua qhov theoretical clearance (hauv radial clearance, tseem hu ua geometric clearance), uas yog, ib qho kev hloov pauv ntau dua qhov teeb meem los ntawm kev kuaj ntsuas (hu ua qhov kev kuaj pom pom qhov sib txawv).
Feem ntau, kev tshem tawm ua ntej kev teeb tsa tau hais tseg los ntawm theoretical internal clearance.
Kev xaiv ntawm sab hauv clearance

Cov ntsiab lus hauv qab no yuav tsum tau txiav txim siab thaum xaiv qhov tseem ceeb tshaj plaws kev tshem tawm raws li cov xwm txheej ntawm kev siv:
(1) Qhov sib txuam ntawm cov kabmob, cov txav thiab lub tsev nyob ua rau muaj qhov hloov ntawm qhov txig.
(2) Kev tshem tawm tau hloov vim qhov kub ntawm qhov sib txawv ntawm cov nplhaib sab hauv thiab sab nraud thaum cov kabmob tseem ua haujlwm.
(3) Cov khoom siv rau kev ua haujlwm thiab lub tsev nyob cuam tshuam qhov hloov ntawm cov kabmob tshem tawm vim muaj cov sib txawv ntawm cov nplaum sib txawv.
Feem ntau, qhov radial tshem tawm ntawm pawg theem pib yuav tsum siv thawj zaug rau cov kabmob uas ua haujlwm ib txwm muaj. Tab sis rau cov kabmob uas ua haujlwm nyob rau hauv cov xwm txheej tshwj xeeb, xws li ntsuas kub, siab nrawm, tsis tshua muaj suab nrov, tsis tshua muaj kev sib txhuam thiab lwm yam, yuav tsum tau xaiv qhov kev tshem tawm ntawm cov pab kom tau xaiv. Xaiv radial me me kom pom meej rau cov kabmob precision thiab cov cuab yeej siv tshuab ntxaiv bearings. Yog tias muaj cov kev cai tshwj xeeb rau cov kabmob tshem tawm, cov kabmob tuaj yeem ua tau raws li qhov xav tau ntawm cov neeg siv khoom.

Thaum cov kabmob tau khiav, vim muaj kev sib koom ua ke ntawm nws qhov kev sib txhuam sab hauv, roj nplua nyeem nplawm thiab lwm yam sab nraud, nws yuav ua rau cov kabmob kub nce thiab qhov chaw nthuav dav.
(1) Ntawm cov kabmob tsis pub dhau, lub kaum sab sib tiv tauj muaj qhov cuam tshuam ntau dua los hloov axial clearance hloov. (2) Ntawm cov kev cuam tshuam ntawm kev cuam tshuam haum, cov nyhuv centrifugal, thiab qhov kub nce ntawm kev coj tus kheej tshem tawm, kev cuam tshuam haum muaj qhov cuam tshuam zoo tshaj plaws. (3) Hauv kev siv, yog tias cov kabmob muaj kev cuam tshuam nrog lub cev sib cuam tshuam, qhov cuam tshuam ntawm qhov haum cuam tshuam rau cov kabmob kev tshem tawm yuav tsum tau coj mus rau hauv tus account, thiab qee qhov kev tshem nyiaj yuav tsum tshwj tseg kom tsis txhob muaj ntau dhau los ntawm kev quab yuam ua ntej thiab ntxov ntxov tsis ua haujlwm ntawm tus kabmob. Thaum lub npauj tiv thaiv lub pob lub ntsej muag yeej raug sib txuam, qhov kev hloov pauv ntawm radial tshem tawm yuav tsum hloov mus rau qhov kev hloov pauv ntawm axial clearance rau kev txiav txim siab.

Dov bearings:
Hauv kev tsim qauv ntawm cov khoom siv tshuab, yob cov kabmob thiab cov nplais tau khiab feem ntau siv. Piv nrog zawv zawg kabmob, dov bearings muaj cov zoo thiab tsis zoo hauv qab no.
zoo dua:
(1) Nyob rau hauv kev ua haujlwm dav dav, qhov kev sib txhuam coefficient ntawm dov cov kabmob yog me me thiab yuav tsis hloov nrog kev hloov ntawm kev sib txhuam coefficient. Nws kuj ruaj khov; pib thiab khiav torque yog qhov loj me, kev poob hluav taws xob yog tsawg, thiab kev ua haujlwm yog siab.
(2) Cov radial tshem tawm ntawm cov kabmob dov tau me me, thiab nws tuaj yeem raug txiav tawm los ntawm txoj kev ntawm axial preload, yog li kev ua haujlwm raug siab.
(3) Rolling bearings muaj qhov me me ntawm axial qhov dav, thiab qee qhov kabmob tuaj yeem dais cov khoom sib txuas radial thiab axial tib lub sijhawm, nrog cov qauv sib dhos thiab kev sib dhos yooj yim.
(4) Rolling bearings yog cov qauv kev cog lus nrog cov qauv kev ntsuas siab thiab tuaj yeem tsim ua khoom plig, yog li tus nqi qis dua.
tsis zoo:
(1) Rolling bearings muaj qhov sib tiv tauj me me ntawm dov khoom thiab cov kav dej, tshwj xeeb tshaj yog cov pob bearings, uas muaj kev cuam tshuam tsis zoo.
(2) Vim cov txheej txheem yam ntxwv ntawm dov dov, kev vibration thiab suab nrov yog loj.
(3) Lub neej ntawm kev ua haujlwm dov yog txo qis hauv kev kub ceev thiab lub nra hnyav.
(4) Cov nplhaib sab hauv thiab sab nraud ntawm txoj kab dov tau coj tus qauv sib xyaw, thiab tsis tuaj yeem saws cov qauv txheej txheem, uas ua rau nws tsis yooj yim rau kev txhim kho cov kabmob nruab nrab ntawm cov ncej ntev.