Ua ntej, lub hauv paus qauv ntawm cov kabmob
Lub hauv paus muaj pes tsawg leeg ntawm cov kabmob: lub nplhaib puab, lub nplhaib sab nraud, lub cev dov, lub tawb
Lub nplhaib puab: feem ntau zoo sib xws nrog cov ncej, thiab tig ua ke.
Lub nplhaib sab nraud: feem ntau nrog cov kabmob hloov pauv, feem ntau los txhawb cov nyhuv.
Cov khoom siv nplhaib sab hauv thiab sab nrauv yog cov kabmob steel GCr15, thiab qhov nyuaj tom qab kev kho cua sov yog HRC60 ~ 64.
Rolling element: los ntawm lub tawb sib npaug ntawm lub nplhaib puab thiab lub nplhaib sab nraud, nws cov duab, qhov loj me, tus lej cuam tshuam ncaj qha rau cov kabmob load bearing muaj peev xwm thiab kev ua haujlwm.
Cage: Ntxiv rau qhov sib npaug ntawm qhov sib cais ntawm cov dov, nws tseem coj cov kev sib hloov ntawm cov khoom siv dov thiab txhim kho cov kev ua haujlwm hauv lubrication ntawm cov kabmob.
Cov pob hlau: Cov khoom siv feem ntau yog cov kabmob steel GCr15, thiab hardness tom qab kev kho cua sov yog HRC61 ~ 66.Qib raug muab faib ua G (3, 5, 10, 16, 20, 24, 28, 40, 60, 100, 200) los ntawm siab mus rau qis raws li qhov siab ntev, qhov siab ntev, ntsuas tus nqi thiab qhov roughness.
Kuj tseem muaj cov txheej txheem pabcuam kabmob
Plua plav npog (lub nplhaib sealing): tiv thaiv cov khoom txawv teb chaws los ntawm kev nkag mus rau cov kabmob.
Roj: lubricate, txo kev vibration thiab suab nrov, nqus kev sib txhuam thaum tshav kub kub, ua kom lub sijhawm ua haujlwm.
Qhov thib ob, kev faib tawm ntawm bearings
Raws li kev sib txhuam ntawm cov khoom txav txav sib txawv, cov kabmob tuaj yeem muab faib ua cov kabmob dov thiab dov bearings ob pawg.Hauv dov bearings, feem ntau yog qhov sib sib zog nqus groove pob bearings, cylindrical roller bearings thiab thrust pob bearings.
Sib sib zog nqus groove pob bearings feem ntau dais radial loads, thiab tuaj yeem dais radial loads thiab axial loads ua ke.Thaum tsuas yog radial load yog thov, tus contact Angle yog xoom.Thaum qhov sib sib zog nqus groove pob bearing muaj qhov loj radial clearance, nws muaj kev ua tau zoo ntawm angular contact bearing thiab tuaj yeem tiv taus ntau dhau axial load, kev sib txhuam coefficient ntawm qhov sib sib zog nqus groove pob bearing yog me me, thiab qhov txwv kev sib hloov ceev kuj siab.
Sib sib zog nqus groove pob bearings yog cov cim tshaj plaws dov bearings nrog ntau yam kev siv.Nws yog qhov tsim nyog rau kev sib hloov ceev ceev thiab txawm tias muaj kev sib hloov ceev heev, thiab nws yog qhov ruaj khov thiab tsis tas yuav tsum tau saib xyuas ntau zaus.Cov kabmob no muaj kev sib txhuam me me, kev txwv siab ceev, cov qauv yooj yim, tsis tshua muaj nqi tsim khoom thiab yooj yim kom ua tiav qhov raug raug.Qhov luaj li cas thiab qhov xwm txheej hloov pauv, siv rau hauv cov cuab yeej precision, tsis tshua muaj suab nrov motors, tsheb, maus taus thiab feem ntau cov tshuab thiab lwm yam lag luam, yog hom kev siv tshuab engineering feem ntau.Feem ntau dais radial load, kuj tuaj yeem dais qee yam ntawm axial load.
Cylindrical roller bearing, lub dov lub cev yog lub centripetal dov bearing ntawm cylindrical roller bearing.Cylindrical roller bearing thiab raceway yog linear contact bearings.Lub peev xwm loj, feem ntau yog dais radial load.Kev sib txhuam ntawm cov khoom dov thiab cov npoo ntawm lub nplhaib yog me me, uas yog tsim rau kev ua haujlwm siab.Raws li seb lub nplhaib muaj flange, nws tuaj yeem muab faib ua NU\NJ\NUP\N\NF thiab lwm yam kab bearings, thiab NNU\NN thiab lwm cov kabmob ob-kab.
Lub cylindrical roller bearing nrog lub nplhaib sab hauv lossis sab nraud yam tsis muaj tav, nws lub nplhaib sab hauv thiab sab nraud tuaj yeem txav mus rau ib leeg axially thiab yog li siv tau los ua cov kabmob dawb-kawg.Ib sab ntawm lub nplhaib puab thiab lub nplhaib sab nraud muaj ob sab ntawm lub nplhaib, thiab lwm sab ntawm lub nplhaib muaj lub cylindrical roller bearing nrog ib tus tav, uas tuaj yeem tiv taus lub axial load nyob rau hauv tib txoj kev mus rau ib qho twg.Hlau ntawv tawb feem ntau yog siv, los yog cov khoom tawb ua los ntawm tooj liab alloy.Tab sis qee tus ntawm lawv siv polyamide ua tawb.
Thrust pob bearings yog tsim los tiv thaiv thrust loads thaum lub sij hawm ua hauj lwm ceev thiab muaj li ntawm gasket rings nrog ib tug raceway groove rau pob dov.Vim hais tias lub nplhaib yog lub rooj zaum pad zoo li, lub thrust pob bearing tau muab faib ua ob hom: lub hauv paus pad hom thiab aligning spherical seat type.Tsis tas li ntawd, cov kabmob no tuaj yeem tiv taus axial loads, tab sis tsis yog radial loads.
Lub thrust pob bearing muaj lub nplhaib lub rooj zaum, lub nplhaib ncej thiab lub pob tawb steel sib dhos.Lub nplhaib nplhaib sib phim nrog lub nplhaib, thiab lub nplhaib lub rooj zaum sib phim nrog lub plhaub.Thrust pob bearings tsuas yog tsim rau cov kabmob ib feem ntawm cov axial load, qhov chaw qis, xws li crane hooks, ntsug twj, ntsug centrifuges, jacks, qis ceev retarders, thiab lwm yam. yog sib cais thiab tuaj yeem ntsia thiab disassembled nyias.
Peb, dov bearing lub neej
(1) Cov ntaub ntawv kev puas tsuaj loj ntawm dov bearings
Fatigue spalling:
Nyob rau hauv rolling bearings, load bearing thiab txheeb ze txav ntawm qhov chaw sib cuag (raceway los yog dov lub cev nto), vim hais tias ntawm lub nruam load, thawj nyob rau hauv lub nto, qhov sib thooj qhov tob, qhov tsis muaj zog ntawm qhov tawg, thiab tom qab ntawd txhim kho mus rau qhov chaw. kev sib cuag nto, kom cov txheej txheej ntawm cov hlau flake tawm, ua rau cov kabmob tsis tuaj yeem ua haujlwm ib txwm, qhov tshwm sim no hu ua qaug zog spalling.Qhov kawg qaug zog spalling ntawm dov bearings yog qhov nyuaj rau zam, qhov tseeb, nyob rau hauv cov ntaub ntawv ntawm ib txwm installation, lubrication thiab sealing, feem ntau ntawm cov kabmob puas yog qaug zog puas.Yog li ntawd, kev pabcuam lub neej ntawm bearings feem ntau yog hu ua kev pabcuam qaug zog ntawm cov kabmob.
Plastic deformation (ntev deformation):
Thaum lub rolling bearing raug load ntau dhau, cov yas deformation yog tshwm sim nyob rau hauv lub dov lub cev thiab dov mus rau qhov kev sib cuag, thiab dov mus rau qhov chaw nto ua ib qho dents, ua rau muaj kev vibration hnyav thiab suab nrov thaum khiav ntawm cov kabmob.Tsis tas li ntawd, cov khoom txawv teb chaws sab nraud rau hauv cov kabmob, muaj kev cuam tshuam ntau dhau, lossis thaum cov kabmob nyob ruaj khov, vim tias lub tshuab vibration thiab lwm yam tuaj yeem tsim indentation hauv qhov chaw sib cuag.
Hnav thiab tsim kua muag:
Vim hais tias ntawm cov txheeb ze txav ntawm dov lub caij thiab raceway thiab ntxeem tau ntawm av thiab hmoov av, dov lub caij thiab dov rau saum npoo ua rau hnav.Thaum tus nqi ntawm kev hnav yog loj, cov kabmob clearance, suab nrov thiab kev vibration nce, thiab kev khiav qhov raug ntawm cov kabmob raug txo, yog li nws ncaj qha cuam tshuam rau qhov tseeb ntawm qee lub cav tseem ceeb.
Thib plaub, cov kabmob qhov tseeb thiab lub suab nrov clearance sawv cev txoj kev
Qhov tseeb ntawm dov bearings yog muab faib ua qhov tseeb qhov tseeb thiab qhov tseeb rotating.Cov qib precision tau raug tus qauv thiab muab faib ua tsib theem: P0, P6, P5, P4 thiab P2.Qhov tseeb tau raug txhim kho los ntawm qib 0, piv rau kev siv li niaj zaus ntawm qib 0 yog qhov txaus, raws li cov xwm txheej sib txawv lossis qee zaus, qhov yuav tsum tau muaj qhov tseeb tsis zoo ib yam.
Tsib, feem ntau nug cov lus nug
(1) Cov kabmob steel
Feem ntau siv hom rolling bearing steel: siab carbon complex bearing steel, carburized bearing steel, corrosion resistant bearing steel, kub bearing steel
(2) Lubrication ntawm bearings tom qab installation
Lubrication yog muab faib ua peb hom: roj, lubricating roj, khoom lubrication
Lubrication tuaj yeem ua rau cov kabmob khiav ib txwm, zam kev sib cuag ntawm txoj kev sib tw thiab qhov chaw dov, txo qhov kev sib txhuam thiab hnav hauv cov kabmob, thiab txhim kho lub sijhawm pabcuam ntawm cov kabmob.Roj muaj qhov zoo adhesion thiab hnav tsis kam thiab kub tsis kam, uas tuaj yeem txhim kho oxidation tsis kam ntawm kub bearings thiab txhim khu lub neej kev pab cuam ntawm bearings.Cov roj hauv cov kabmob yuav tsum tsis txhob ntau dhau, thiab cov roj ntau dhau yuav ua rau muaj kev cuam tshuam.Qhov siab dua qhov ceev ntawm cov kabmob, qhov teeb meem ntau dua.Yuav ua rau cov kabmob hauv kev ua haujlwm thaum tshav kub kub loj, yuav yooj yim rau kev puas tsuaj vim muaj cua sov ntau dhau.Yog li ntawd, nws yog ib qho tseem ceeb tshwj xeeb los sau cov roj scientifically.
Rau, bearing installation ceev faj
Ua ntej kev teeb tsa, ua tib zoo saib xyuas seb puas muaj teeb meem nrog qhov zoo ntawm cov kabmob, xaiv cov khoom siv sib txuas, thiab ua tib zoo saib xyuas kev huv ntawm cov kabmob thaum txhim kho cov kabmob.Ua tib zoo saib txawm tias quab yuam thaum tapping, maj mam tapping.Xyuas seb cov bearings puas raug ntsia zoo tom qab kev teeb tsa.Nco ntsoov, ua ntej kev npaj ua tiav, tsis txhob ntim cov kabmob kom tsis txhob muaj kab mob.
Post lub sij hawm: Sep-12-2023