Bearings yog ib qho ntawm cov khoom tseem ceeb ntawm cov gearboxes, thiab lawv kuj yog cov feem ntau puas hauv cov gearboxes. Nyob rau tib lub sijhawm, piv nrog cov kab ke dav dav, kev xaiv, daim ntawv thov, kev teeb tsa thiab kev saib xyuas cov bearings hauv lub gearbox yog qhov nyuaj heev. Yog li dab tsi yog qhov teeb meem hauv daim ntawv thov ntawm gearbox bearings, thiab dab tsi yuav tsum tau them rau?
Complex quab yuam
Thaum lub gearbox khiav, torque thiab rotational ceev yog kis ntawm lub input ncej thiab cov zis ncej. Lub torque kis tau tus mob yog nqa tawm nyob rau hauv lub iav meshing txheej txheem, thiab lub meshing quab yuam yuav raug generated thaum lub sij hawm lub iav meshing txheej txheem.
Yog hais tias lub iav yog ib qho spur iav, ces lub zog meshing no yog lub zog ntawm lub voj voog ntshiab. Lub zog ntawm lub voj voog no yog ib qho radial load ntawm tag nrho cov ncej system thaum saib los ntawm lub kaum sab xis.
Yog hais tias lub iav yog ib tug helical iav los yog ib tug bevel iav, thiab lwm yam., lub iav meshing quab yuam muaj ib tug axial tivthaiv nyob rau hauv tas li ntawd mus rau lub circumferential tivthaiv. Lub zog ntawm lub axial tivthaiv no yog lub zog axial ntawm lub tog raj kheej.
Ntawm qee lub iav shafts, qee zaum muaj ntau lub iav meshing nrog cov iav ntawm lwm cov ncej, yog li yuav muaj ntau yam axial thiab radial loads. Cov kev taw qhia ntawm cov loads hauv qhov chaw yog cuam tshuam nrog meshing. Thaum xam cov bearing quab yuam, nws yog tsim nyog los decompose thiab synthesize, thiab thaum kawg xam qhov tseeb load ntawm cov kabmob.
Tsis tas li ntawd, thaum lub gearbox khiav, yog tias sab nraud torque fluctuates, lub iav meshing quab yuam yuav fluctuate, uas yuav ua rau lub bearing quab yuam fluctuate. Tag nrho cov no ua rau lub zog tsom xam ntawm gearbox bearings nyuaj dua. Kev sib npaug yuav tsum tau ua thaum kuaj xyuas lub neej tiag tiag.
complex ceev
Cov shafts sib txawv hauv lub gearbox muaj qhov sib txawv ntawm kev sib hloov ceev, los ntawm qis-ceev shafts mus rau high-speed shafts, cov bearings ntawm txhua tus ncej tig ntawm tib lub nrawm, thiab kev sib hloov ceev ntawm cov shafts sib txawv. Qhov no ua rau lub sij hawm hloov dua siab tshiab sib txawv thaum xam cov bearing life check.
Cov kev xav tau ceev sib txawv ua rau muaj qhov sib txawv ntawm qhov kev xaiv ntawm cov kabmob ceev muaj peev xwm thaum xaiv cov kabmob.
Piv txwv li, rau kev kub ceev shafts, cov kabmob uas muaj peev xwm ua tau zoo dua tuaj yeem raug xaiv, xws li sib sib zog nqus groove pob bearings, angular contact pob bearings, thiab tapered roller bearings.
Rau qhov qis-ceev shafts, bearings nrog loj nqa peev xwm, xws li cov menyuam bearings, txawm tias tag nrho cov menyuam bearings, tapered bearings, thiab lwm yam, yuav raug xaiv.
Lubrication yog qhov nyuaj
Los ntawm lub hauv paus ntsiab lus ntawm lubrication, nws tsis yog qhov nyuaj kom paub tias qhov kub thiab txias, ceev thiab thauj khoom ntawm cov kabmob muaj qhov cuam tshuam ncaj qha rau lub lubrication ntawm cov kabmob.
Nyob rau hauv cov nqe lus ntawm kev sib hloov ceev, kev sib hloov ceev ntawm lub siab ceev ncej thiab qis-ceev ncej ntawm lub gearbox bearing yog txawv, thiab cov kabmob loj kuj txawv. Yog li ntawd, qee zaum nws tuaj yeem nyuaj rau xaiv cov roj nplua nyeem uas ua tau raws li qhov xav tau ntawm kev sib hloov ceev. Hauv kev xaiv tswv yim, feem ntau muaj teeb meem thiab qee qhov yuav tsum tau ua.
Nyob rau hauv cov nqe lus ntawm kev thauj khoom, qhov hnyav ntawm qhov qis-ceev ncej thiab lub teeb load ntawm lub siab ceev ncej yog ib khub ntawm qhov tsis sib xws. Thaum lub viscosity tsawg, nws yog ib qho nyuaj rau lub low-speed ncej bearing los ua ib tug roj zaj duab xis, thiab thaum lub viscosity yog siab, lub high-ceev ncej yuav cuam tshuam rau lub tshav kub tiam.
Nyob rau hauv cov nqe lus ntawm kub, lub lubrication nyob rau hauv lub gearbox nws tus kheej muaj ib tug tej yam tshav kub dissipation muaj nuj nqi, thiab lub meshing ntawm lub zog yog lub hauv paus ntawm lub tshav kub tiam ntawm lub gearbox. Qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm lub gearbox muaj feem xyuam rau lub meshing, thiab cov kabmob kub muaj feem xyuam rau qhov kub hloov mus deb ntawm lub iav. Kev cuam tshuam ntawm qhov sib txawv ntawm qhov kub thiab txias ntawm lub viscosity ntawm lubrication tshwm sim objectively, tab sis vim yog cov ndlwg ntawm lubricating roj, lub tshav kub yog pauv nrog rau cov ndlwg.
Complex ncej system tsim
Muaj feem ntau cov load-txog axial rog nyob rau hauv gearbox bearing systems, yog li cov bearings nrog axial load peev raug xaiv los ua khub. Nyob rau tib lub sijhawm, qhov tseeb ntawm txoj haujlwm axial ntawm tag nrho cov ncej tsis tsuas yog cuam tshuam rau cov kabmob, tab sis kuj cuam tshuam rau qhov tseeb ntawm cov iav, uas yog qhov tseem ceeb heev rau kev tsim ntawm lub gearbox. Hauv kev tsim ntawm cov ncej, lub ncej tsis tsuas yog muaj qee qhov rigidity thiab qhov chaw raug nyob rau hauv cov kev taw qhia radial, tab sis kuj nyob rau hauv cov kev taw qhia axial. Yog li ntawd, kev tsim ntawm gearbox bearing systems feem ntau siv cov qauv ntoo khaub lig.
Nyob rau hauv tus ntoo khaub lig positioning qauv ntawm lub gearbox bearing system, tsis tsuas yog lub positioning, tab sis kuj lub positioning raug xam. Thaum lub iav raug rau axial quab yuam, lub zog ntawm tag nrho cov ncej nyob rau hauv lub axial kev taw qhia yuav tsum nyob rau hauv ib tug ntau npaum li cas.
Nyob rau tib lub sijhawm, thaum lub thawv iav ua haujlwm, tag nrho cov kab ke yuav ua kom sov, thiab cov qib ntawm cov cua sov tsim thiab cov cua kub dissipation ntawm cov khoom sib txawv yog qhov sib txawv, uas ua rau qhov sib txawv ntawm cov vaj tse, ncej, iav, thiab cov kabmob chamber los ntawm lub xeev txias. Qhov no yuav cuam tshuam rau qhov seem tshem tawm hauv cov kabmob hauv kev teeb tsa tus ntoo khaub lig. Yog li ntawd, thaum tsim lub gearbox ncej system, nws yog ib qho tsim nyog yuav tau xav txog qhov cuam tshuam ntawm qhov sib txawv ntawm qhov kub thiab txias ntawm cov kabmob clearance hauv lub ncej.
Qhov tseeb, thaum lub gearbox khiav, kev cuam tshuam ntawm kev thauj khoom thiab kev cuam tshuam ntawm qhov kub thiab txias tshwm sim nyob rau tib lub sijhawm, yog li nws yuav tsum tau ua kom tiav cov kev txheeb xyuas suav nrog.
Qhov tshwm sim ntawm kev txheeb xyuas qhov tseeb hauv qhov teeb meem saum toj no yog axial, radial kam rau ua thiab qhov tseeb ntawm cov kabmob chamber thiab ncej.