Ntsawj pob cov kabmob yog cov sib cais yam muaj cov kabmob, suav nrog lub nplhaib (nrog cov ntawv xov xwm), lub rooj zaum lub rooj (nrog lub rooj zaum cov kabmob) thiab ib pawg steel pob thiab lub pob tawb sib xyaw.Thaum txhim kho, nws tuaj yeem muab sib dhos tau yooj yim nrog phau ntawv sau lus thiab lub rooj zaum cov khoom raws.
Thrust pob bearings muaj ib-txoj kev thawb lub pob bearings thiab ob-txoj kev ntsaws pob bearings raws li cov qauv sib txawv, zoo li angular hu thawb pob bearings.
Ib-txoj kev ntsaws pob bearings
Ib-txoj kev tso lub pob muaj peev xwm tuaj yeem dais axial thauj nyob rau hauv ib qho kev taw qhia, tab sis tsis tuaj yeem dais radial load.Muaj peev xwm ua tau unidirectional axial kev muab tso rau.
Ib-txoj kev thawb lub pob bearings tau muab faib ua dav hlau cov rooj sib tw thiab muab cov npoo ntawm lub rooj sib luag.Dav dav hlau lub rooj zaum lub nplhaib tsis pub muaj qhov yuam kev Angle, tab sis hauv kev tsim cov kabmob, 0.5 ~ 1 hli tshem tawm tuaj yeem muab cais ntawm txoj kab sab nraud ntawm lub rooj zaum lub nplhaib thiab cov kabmob lub rooj mating nto rau kev them nyiaj.Lub pob pov npoo pob nrog lub rooj zaum uas teeb tsa tus kheej kuj tseem siv tau los them nyiaj rau cov tsis xwm txheej thaum lub sijhawm teeb tsa.Tab sis lub rooj kis tau yooj yim yuav tsum tau txiav txim nyias.
Ob txoj kev thawb lub pob bearings
Bidirectional thrust pob bearings tuaj yeem lav cov kabmob axial hauv ob qho kev qhia.Tab sis tsis tuaj yeem dais thev kis.Muaj peev xwm ua axial kev tso npe hauv ob qho kev qhia.
Bidirectional thrust pob bearings tseem raug faib ua dav hlau cov rooj zaum rooj tog thiab kev sib luag ntawm cov tog zaum.Dav dav hlau lub rooj zaum lub nplhaib tsis pub muaj qhov yuam kev Angle, tab sis hauv kev tsim cov kabmob, 0.5 ~ 1 hli tshem tawm tuaj yeem muab cais ntawm txoj kab sab nraud ntawm lub rooj zaum lub nplhaib thiab cov kabmob lub rooj mating nto rau kev them nyiaj.Pob thawb lub pob uas muaj lub rooj muaj teeb tsa tus kheej tseem tuaj yeem siv los them nyiaj rau cov tsis xwm txheej tsis zoo ntawm lub installation.Tab sis lub rooj kis tau yooj yim yuav tsum tau txiav txim nyias.
Angular cuag thawb pob bearings
Angular contact thrust pob bearings feem ntau dais cov kabmob axial, thiab tseem tuaj yeem thev me me ntawm cov khoom thauj radial.
Piv nrog thawb lub pob uas muaj lub zog loj tib yam, qhov tso cai ceev tau ntau dua.Muaj peev xwm ua tau unidirectional axial kev muab tso rau.
Angular contact thrust pob bearings muaj ob qhov sib tiv tauj ntawm 45 ° thiab 60 °, uas yog qhov tsim tshwj xeeb rau kev siv hauv cov ntawv thov sib txuas qhov twg axial load yog feem ntau borne thiab radial load tau muab qhov muaj feem thib.Nws tseem tuaj yeem them cov dav hlau thawb lub pob cov kabmob tuaj yeem tsuas dais taus axial tab sis tsis tuaj yeem dais radial load.Lub radial load uas cov qauv tuaj yeem dais nyob ntawm qhov loj me ntawm cov hu rau Lub Kaum Ib Leeg. Feem ntau hais lus, qhov me dua ntawm cov Kev Sib Ceg yog, ntau dua qhov yuav nkag tau rau radial load lub peev xwm yuav.
Thaws pob bearings nrog tsev nyob
Tus qauv ntawm ntsawj pob kabmob nrog cov npog sab nraud yog ib qho zoo tib yam ntawm cov unidirectional thrust pob bearing.Tab sis muaj cov ntawv npog ntawm lub rooj zaum lub nplhaib (lossis ib qho npog ntawm ob sab hauv thiab sab diameters ntawm lub rooj zaum lub nplhaib).Vim hais tias ntawm lub hau npog sab nraud, lub pob ntsaws kabmob tom qab lub npog sab nraud dhau los ua ib qho kev sib cais, thiab lub luag haujlwm ntawm lub hau sab nraud yog hmoov av.Tus qauv hauv daim duab 2 kuj tuaj yeem sau nrog roj.
Thawb lub pob uas muaj peev xwm nyob hauv tsev tau dais cov kab ntawm axial nyob rau hauv ib qho kev taw qhia, tab sis tsis tuaj yeem dais cov thauj khoom radial.Muaj peev xwm ua tau unidirectional axial kev muab tso rau.
Peb tseem tuaj yeem muab cov qhua tuaj noj mov nrog lwm cov txheej txheem kev thawb pob tau zoo, xws li kev tiv thaiv tsis pub dawb pob lub pob, lub qhov taub tsis muaj pob tsis muaj pa zoo, pob hlau tsis sib thooj pob lub pob thiab lwm yam khoom. Yog tias cov neeg siv khoom xav tau, koj tuaj yeem sab laj nrog TG chav haujlwm.
Peb kuj tuaj yeem tsim thiab tsim tshiab thawb pob cov khoom zoo kom tau raws li cov neeg siv khoom' s tus kheej cov cai.
lub tawb
Thrust npas kabmob tawb feem ntau siv steel phaj stamping tawb, tseem muaj tsheb laij teb steel, brass solid cages, thiab iav fiber reinforced nylon 66 thiab lwm yam engineering tawb yas.
Lub nra me dua
Txhawm rau kom ntseeg tau cov kabmob kom tau txais lub xeev kev ua haujlwm zoo, ntsaws pob bearings, zoo li lwm cov pob thiab cov menyuam cov kabmob, yuav tsum tau thov qee qhov nyiaj me me, tshwj xeeb rau kev kub ceev, siab nrawm, lossis ua haujlwm nyob rau hauv cov xwm txheej ntawm nquag hloov hauv cov kev taw qhia ntawm load.Vim tias cov haujlwm no ua haujlwm, lub zog inertial ntawm lub npas thiab lub tawb thiab cov kev sib txhuam hauv cov roj nplua nyeem yuav muaj qhov cuam tshuam tsis zoo ntawm cov ntxuag thiab tig tau qhov tseeb ntawm cov kabmob, thiab yuav muaj kev phom sij zawv zawg txav ntawm cov kabmob ntawm lub pob thiab txoj kev sib tw.
Qhov me dua axial load Fmin uas yuav tsum tau ua ntawm ntsawj pob cov kabmob tuaj yeem kwv yees los ntawm cov mis hauv qab no:
kN
Hom nyob rau hauv lub
A - thauj khoom me me tas li, saib cov kabmob loj rooj
N - Cov kabmob nrawm, r / min
Lub nra me dua yuav tsum muaj thaum pib ntawm qhov ntsuas qis los yog thaum lub tshuab pa roj nplua nyeem siab.Nquag, qhov nyhav ntawm cov kabmob txhawb nqa nws tus kheej ntxiv rau cov kab mob yug los ntawm cov kabmob tau dhau qhov kev xav tau me me.Yog tias lub nra tsis tau dhau mus txog, cov qauv kev coj ua yuav tsum tau yuam nrog ntxiv axial load kom tau raws li qhov xav tau ntawm lub nra me.Nyob rau hauv kev thov ntawm lub thawb lub pob kabmob, axial pretightening feem ntau tuaj yeem thov nrog cov dej txhaws.
Qhov loj me, thev taus
Cov qhov ntev ntawm tus qauv pov npav pob tau raws li cov kev cai ntawm GB / T273.2" Rolling Bearing Thrust Bearing Dimensions General Scheme" ;, GB / T301" Rolling Bearing Thrust Ball Bearing Dimensions" thiab yog li ntawd.
Txoj kam rau ua ntawm cov qauv ntsaws pob tau zoo raws li cov nqe ntawm GB / T307.4" Rolling Bearing Thrust Bearing Tolerances" thiab yog li ntawd.
Lub dimension kam rau ua chav ntawm txheem thrust pob bearings yog feem ntau P0 (chav kawm zoo tib yam). Yog tias cov neeg siv khoom muaj lwm cov kev cai tshwj xeeb rau qhov loj me thiab ua siab ntev (suav nrog cov uas tsis yog cov qauv), TG tuaj yeem muab cov khoom lag luam sib xws.
Sib npaug zog load
Rau lub ntsawj pob tau cov kabmob nyob rau hauv lub zog load, nws qhov sib npaug dynamic load tuaj yeem xam raws li hauv qab no:
= 90 ° P=FA
α ° 90 ° P=XFR + YFA
Ib-txoj kev coj tus kheej
Thaum alpha=45 °
Fa / Fr> EX=0.66 Y=1 E=1.25
Thaum alpha=60 °
Fa / Fr> e X=0.92 Y=1 e=2.17
Ob-txoj kev coj tus kheej
Thaum alpha=45 °
Fa / Fr> EX=0.66 Y=1 E=1.25
Fa / Fr≤ EX=1.18 Y=0.59 e=1.25
Thaum alpha=60 °
Fa / Fr> EX=0.92 Y=1 E=1.25
Fa / Fr≤ EX=1.9 Y=0.55 e=2.17
Sib npaug zoo li qub load
Rau ntsawj pob bearings cov kabmob zoo li qub load, lub sib npaug zoo li qub load tuaj yeem xam raws li hauv qab no:
= 90 ° P0=FA
α ° 90 ° P0 = Fa + 2.3fr · tanα
Hom nyob rau hauv lub
Fa - Radial load, N
Fr - Axial load, N
Alpha - hu rau Lub Kaum
X - Radial load coefficient
Y - Axial load coefficient
