Cov kabmob
lub neej
Nyob rau hauv ib tug tej yam load, tus naj npawb ntawm revolutions los yog teev uas abearingkev paub ua ntej pitting tshwm sim yog hu uabearinglub neej.
Lub neej ntawm cov kabmob dov yog txhais los ntawm tus lej ntawm kev hloov pauv (lossis cov sijhawm ua haujlwm ntawm qee qhov nrawm): hauv lub neej no, cov kabmob yuav tsum muaj kev puas tsuaj rau thawj zaug (spalling lossis chipping) ntawm ib qho ntawm nws cov kabmob rings lossis dov cov ntsiab lus. Txawm li cas los xij, txawm tias nyob rau hauv kev kuaj sim lossis hauv kev siv tiag tiag, nws tuaj yeem pom meej tias lub neej tiag tiag ntawmbearingsnrog tib lub ntsej muag nyob rau hauv tib txoj haujlwm ua haujlwm sib txawv heev. Tsis tas li ntawd, muaj ntau lub ntsiab lus sib txawv ntawm kev coj tus cwj pwm "lub neej", ib qho ntawm lub npe hu ua "ua haujlwm lub neej", uas qhia txog lub neej tiag tiag uas cov kabmob tuaj yeem ua tiav ua ntej tsis ua haujlwm vim hnav, kev puas tsuaj feem ntau tsis tshwm sim los ntawm qaug zog, tab sis Ua los ntawm hnav, corrosion, foob puas, thiab lwm yam.
In order to determine the standard of bearing life, the bearing life and reliability are related.
Txhawm rau sib piv cov kabmob muaj peev xwm ntawm cov kabmob tiv thaiv pitting corrosion, thaum lub neej nyob ntawm qhov ntsuasbearingtau teev tseg tias yog ib lab kiv puag ncig (106), qhov siab tshaj plaws uas tuaj yeem txhawb nqa yog qhov pib ntsuas dynamic load, sawv cev los ntawm C.
Uas yog hais, nyob rau hauv qhov kev txiav txim ntawm qhov ntsuas dynamic load C, kev ntseeg siab ntawm hom nobearingua hauj lwm rau ib lab kiv puag ncig (106) tsis muaj pitting tsis ua hauj lwm yog 90%. Qhov loj dua C, qhov siab dua cov kabmob muaj peev xwm.
Rau qhov yooj yim dynamic load ntsuas
1. Radial bearing yog hais txog cov ntshiab radial load
2. Thrust pob bearings xa mus rau cov khoom siv axial ntshiab
Nyob rau hauv ib tug tej yam load, tus naj npawb ntawm revolutions los yog teev uas abearingkev paub ua ntej pitting tshwm sim yog hu uabearinglub neej.
Lub neej ntawm cov kabmob dov yog txhais los ntawm tus lej ntawm kev hloov pauv (lossis cov sijhawm ua haujlwm ntawm qee qhov nrawm): hauv lub neej no, cov kabmob yuav tsum muaj kev puas tsuaj rau thawj zaug (spalling lossis chipping) ntawm ib qho ntawm nws cov kabmob rings lossis dov cov ntsiab lus. Txawm li cas los xij, txawm tias nyob rau hauv kev kuaj sim lossis hauv kev siv tiag tiag, nws tuaj yeem pom meej tias lub neej tiag tiag ntawmbearingsnrog tib lub ntsej muag nyob rau hauv tib txoj haujlwm ua haujlwm sib txawv heev. Tsis tas li ntawd, muaj ntau lub ntsiab lus sib txawv ntawm kev coj tus cwj pwm "lub neej", ib qho ntawm lub npe hu ua "ua haujlwm lub neej", uas qhia txog lub neej tiag tiag uas cov kabmob tuaj yeem ua tiav ua ntej tsis ua haujlwm vim hnav, kev puas tsuaj feem ntau tsis tshwm sim los ntawm qaug zog, tab sis Ua los ntawm hnav, corrosion, foob puas, thiab lwm yam.
In order to determine the standard of bearing life, the bearing life and reliability are related.
Vim qhov sib txawv ntawm kev tsim precision thiab cov khoom sib xws, txawm tias tib lub batch ntawm bearings ntawm tib yam khoom thiab qhov loj me, siv nyob rau hauv tib yam kev ua haujlwm, muaj lub neej sib txawv. Yog hais tias lub neej kev txheeb cais yog 1 unit, lub neej ntev tshaj plaws yog 4 units, qhov luv tshaj plaws yog 0.1-0.2 units, thiab qhov piv ntawm qhov ntev tshaj plaws rau lub neej luv tshaj yog 20-40 zaus. 90% ntawm cov bearings tsis tsim pitting corrosion, thiab tus naj npawb ntawm cov kiv puag ncig lossis cov sij hawm tau ntsib yog hu ua bearing rating life .
Txhawm rau sib piv cov kabmob muaj peev xwm ntawm cov kabmob tiv thaiv pitting corrosion, thaum lub neej nyob ntawm qhov ntsuasbearingtau teev tseg tias yog ib lab kiv puag ncig (106), qhov siab tshaj plaws uas tuaj yeem txhawb nqa yog qhov pib ntsuas dynamic load, sawv cev los ntawm C.
Uas yog hais, nyob rau hauv qhov kev txiav txim ntawm qhov ntsuas dynamic load C, kev ntseeg siab ntawm hom nobearingua hauj lwm rau ib lab kiv puag ncig (106) tsis muaj pitting tsis ua hauj lwm yog 90%. Qhov loj dua C, qhov siab dua cov kabmob muaj peev xwm.
Rau qhov yooj yim dynamic load ntsuas
1. Radial bearing yog hais txog cov ntshiab radial load
2. Thrust pob bearings xa mus rau cov khoom siv axial ntshiab
3. Radial thrustbearingyog hais txog cov khoom siv radial uas ua rau kev hloov pauv dawb huv radial
Xa lus nug
X
Peb siv cov ncuav qab zib los muab koj cov kev tshawb fawb zoo dua, txheeb xyuas qhov chaw khiav tsheb thiab kho cov ntsiab lus tus kheej. Los ntawm kev siv lub xaib no, koj pom zoo rau peb siv cov ncuav qab zib.
Txoj Cai Tswjfwm Ntiag Tug