Ua cov khoom muaj txiaj ntsig zoo
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Rolling Bearing Selection – Saib daim duab loj dua

Thaum noj tag nrho lub neej voj voog theej coj tus nqi yuav khoom ib leeg rau hauv tus account, cov neeg siv kawg tuaj yeem txuag nyiaj los ntawm kev txiav txim siab ntawm kev siv cov qib siab dov bearings.

Rolling bearings yog cov khoom tseem ceeb hauv kev hloov cog, tshuab thiab khoom siv, suav nrog cov cuab yeej siv tshuab, kev siv tshuab tsis siv neeg, cua turbines, ntawv mills thiab steel ua cov nroj tsuag.Txawm li cas los xij, qhov kev txiav txim siab ntawm qhov tshwj xeeb dov bearing yuav tsum nco ntsoov ua tom qab tshuaj xyuas tag nrho cov nqi ntawm lub neej lossis tag nrho cov nqi ntawm cov tswv cuab (TCO) ntawm cov kabmob thiab tsis yog los ntawm tus nqi yuav khoom ib leeg xwb.

Yuav pheej yig dua bearings feem ntau tuaj yeem ua pov thawj kim dua nyob rau lub sijhawm ntev.Feem ntau tus nqi yuav khoom tsuas yog 10 feem pua ​​​​ntawm cov nqi tag nrho.Yog li thaum nws los txog rau kev yuav dov bearings, dab tsi yog qhov tseem ceeb ntawm kev txuag ob peb phaus ntawm no thiab yog tias qhov no txhais tau tias cov nqi hluav taws xob ntau dua vim muaj kev sib txhuam ntau dua?Los yog ntau dua kev saib xyuas nyiaj siv ua haujlwm los ntawm kev txo qis lub neej ntawm lub tshuab?Los yog cov kabmob tsis ua haujlwm uas ua rau lub tshuab tsis tau npaj tseg, ua rau poob ntau lawm, xa khoom qeeb thiab cov neeg siv khoom tsis txaus siab?

Niaj hnub no cov cuab yeej siv siab siab dov bearings muaj ntau yam kev txhim kho uas ua kom TCO txo kom ua tiav, muab tus nqi ntxiv rau kev ua tiav lub neej ntawm rotating cog, tshuab thiab khoom siv.

Rau cov kabmob tsim / xaiv rau ib daim ntawv thov kev lag luam, TCO yog sib npaug rau cov lej ntawm cov hauv qab no:

Tus nqi pib / tus nqi yuav khoom + kev teeb tsa / kev them nqi + nqi hluav taws xob + nqi khiav lag luam + tus nqi tu (nruab nrab thiab npaj) + nqi poob qis + nqi ib puag ncig + nqi decommissioning / pov tseg.

Whilst tus nqi pib ntawm kev yuav khoom ntawm cov kev daws teeb meem siab tshaj plaws yuav siab dua tus qauv kev coj tus kheej, cov peev txheej kev txuag uas tuaj yeem ua tiav hauv daim ntawv ntawm cov sij hawm sib dhos txo, txhim kho kev siv hluav taws xob zoo (xws li siv cov kev sib txhuam qis qis) thiab txo tus nqi txij nkawm, feem ntau ntau tshaj li qhov pib siab dua tus nqi yuav khoom ntawm cov kev daws teeb meem siab heev.

Ntxiv tus nqi tshaj lub neej

Kev cuam tshuam ntawm kev txhim kho kev tsim kho hauv kev txo TCO thiab ntxiv tus nqi ntawm lub neej tuaj yeem yog qhov tseem ceeb, vim tias tsim-hauv kev txuag nyiaj feem ntau muaj kev ruaj khov thiab ruaj khov.Kev txo qis hauv lub neej ntawm cov kab ke los yog cov khoom siv muaj nqis ntau dua rau cov neeg siv khoom hauv cov ntsiab lus ntawm kev txuag nyiaj ntau dua li kev txo qis ntawm tus nqi pib ntawm cov bearings.

Kev koom tes thaum ntxov

Rau kev lag luam OEMs, kev tsim cov kabmob tuaj yeem ntxiv tus nqi rau lawv tus kheej cov khoom hauv ntau txoj hauv kev.Los ntawm kev koom tes nrog cov OEMs thaum ntxov hauv cov qauv tsim thiab kev tsim kho, cov chaw muag khoom muaj peev xwm kho kom zoo dua qub, kev sib koom ua ke bearings thiab cov rooj sib txoos, uas ua tau raws li cov kev cai tshwj xeeb ntawm daim ntawv thov.Cov khoom lag luam kabmob tuaj yeem ntxiv tus nqi los ntawm, piv txwv li, tsim thiab kho cov kabmob sab hauv uas tsim kom muaj peev xwm nqa tau thiab khov kho lossis txo kev sib txhuam.

Nyob rau hauv cov ntawv thov uas tsim lub hnab ntawv me me, cov kabmob tsim tuaj yeem ua kom zoo rau kev yooj yim ntawm kev sib dhos thiab txo lub sijhawm sib dhos.Piv txwv li, ntsia hlau threads ntawm lub rooj sib txoos mating nto tuaj yeem muab tso rau hauv cov qauv tsim.Nws kuj tseem tuaj yeem muab cov khoom sib txuas los ntawm cov ncej thiab cov vaj tse nyob ib puag ncig rau hauv kev tsim cov kabmob.Cov yam ntxwv xws li cov no ntxiv tus nqi tiag tiag rau OEM cov neeg siv khoom lub cev thiab tuaj yeem ua rau muaj txiaj ntsig zoo rau tag nrho lub neej ntawm lub tshuab.

Lwm cov nta tuaj yeem muab ntxiv rau cov kabmob uas ntxiv cov nqi ntxiv rau lub neej ntawm lub tshuab.Cov no suav nrog cov cuab yeej tshwj xeeb sealing hauv cov kabmob los pab txuag chaw;anti-rotation nta los tiv thaiv slippage nyob rau hauv cov teebmeem ntawm kev hloov ceev ceev thiab kev coj ntawm kev sib hloov;txheej txheej ntawm cov kabmob cov kabmob kom txo qis kev sib txhuam;thiab optimizing bearing lag luam nyob rau hauv ciam teb lubrication tej yam kev mob.

Tus neeg muag khoom muaj peev xwm txheeb xyuas cov nqi tag nrho ntawm cov tshuab, cov nroj tsuag thiab lawv cov khoom siv - los ntawm kev yuav khoom, kev siv hluav taws xob thiab kev saib xyuas txhua txoj hauv kev los ntawm kev kho, dismantling thiab pov tseg.Kev paub zoo tus nqi tsav tsheb thiab cov nuj nqis zais tuaj yeem raug txheeb xyuas, ua kom zoo thiab tshem tawm.

Raws li tus neeg muag khoom bearing nws tus kheej, Schaeffler saib TCO raws li kev pib nrog kev tshawb fawb hnyav thiab kev txhim kho uas yog tsom rau kev txhim kho txuas ntxiv hauv cov qauv zoo thiab yog li kev khiav haujlwm ntawm dov bearings, los ntawm kev tsim kho kom zoo thiab cov khoom siv.Nws kuj tseem muab nws cov neeg siv khoom zoo, muaj kev qhia paub txog kev pabcuam thiab kev cob qhia, txhawm rau nrhiav kev daws teeb meem zoo tshaj plaws rau txhua daim ntawv thov.Lub tuam txhab kev muag khoom thiab kev pabcuam kev lag luam tau paub txog lawv cov neeg siv khoom cov khoom lag luam thiab tau txais kev txhawb nqa los ntawm cov software siab heev rau kev xaiv, suav thiab simulation.Tsis tas li ntawd, cov yam ntxwv xws li cov lus qhia ua tau zoo thiab cov cuab yeej tsim nyog rau cov kabmob mounting txhua txoj hauv kev los ntawm kev saib xyuas raws li tus neeg mob, lubrication, dismounting thiab reconditioning yog tag nrho rau hauv kev xav.

Schaeffler Ntiaj teb no Technology Networksuav nrog hauv zos Schaeffler Technology Centers (STC).STCs coj Schaeffler's engineering thiab kev paub txog kev pabcuam txawm nyob ze rau cov neeg siv khoom thiab ua kom cov teeb meem kev daws teeb meem sai thiab ua tau zoo tshaj plaws.Cov kws tshaj lij cov lus qhia thiab kev txhawb nqa muaj rau txhua yam ntawm kev siv tshuab dov bearing nrog rau daim ntawv thov engineering, kev suav, kev tsim khoom, lubrication, mounting cov kev pabcuam, kev saib xyuas mob thiab kev sab laj kev sib tham kom xa cov kev daws teeb meem rau cov txheej txheem siab zoo thoob plaws ntiaj teb.STCs niaj hnub qhia cov ntaub ntawv thiab cov tswv yim thoob ntiaj teb Technology Network.Yog tias xav tau kev paub tshwj xeeb hauv qhov tob, cov tes hauj lwm no ua kom muaj peev xwm txhawb nqa tau sai - tsis hais qhov twg nws xav tau hauv ntiaj teb.

Daim ntawv kev lag luam piv txwv

Hauv kev tsim cov ntawv, dov bearings hauv CD-profile tswj rolls ntawm calender tshuab yog ib txwm raug rau cov khoom qis.Cov loads tsuas yog siab dua thaum qhov sib txawv ntawm cov yob qhib.Rau cov kev siv no, tshuab manufacturers ib txwm xaiv spherical roller bearings nrog txaus load nqa peev xwm rau high-load theem.Txawm li cas los xij, nyob rau hauv qis-load theem no ua rau slippage, ua rau ntxov ntxov bearing tsis ua hauj lwm.

Los ntawm txheej txheej dov cov ntsiab lus thiab optimizing lubrication, cov slippage cuam tshuam yuav raug txo, tab sis tsis tag tshem tawm.Vim li no, Schaeffler tau tsim ASSR bearing (Anti-Slippage Spherical Rolling Bearing).Cov kabmob muaj xws li cov nplhaib ntawm tus qauv kheej kheej cov menyuam bearings, tab sis lub thoob chais alternate nrog cov khoom nyob rau hauv txhua ntawm ob kab ntawm dov ntsiab.Nyob rau hauv qis-load theem, cov npas ua kom tsis muaj kev ua haujlwm tsis muaj kev poob qis, thaum lub thoob chais siv cov khoom thauj hauv theem siab load.

Cov txiaj ntsig zoo rau cov neeg siv khoom yog qhov tseeb: thaum thawj cov kabmob feem ntau ua tiav lub neej kev pabcuam txog ib xyoos, cov kabmob ASSR tshiab yuav tsum kav ntev txog 10 xyoo.Qhov no txhais tau tias tsawg dua dov bearings yuav tsum tau nyob rau hauv lub neej ntawm lub tshuab calender, ib tug txo nyob rau hauv cov kev xav tau ntawm cov txij nkawm thiab kev txuag ntawm rau-tus lej nyiaj txuag rau tag nrho cov tshuab lifecycle.Tag nrho cov no tau ua tiav los ntawm kev siv tib lub tshuab ib txoj haujlwm rau hauv kev txiav txim siab.Kev ua kom zoo dua ntxiv thiab yog li kev txuag nyiaj tseem ceeb ntxiv tuaj yeem ua tiav los ntawm kev ntsuas ntxiv, xws li kev soj ntsuam hauv online thiab kuaj kev vibration, ntsuas kub lossis ntsuas qhov sib npaug / zoo li qub - txhua yam tuaj yeem muab los ntawm Schaeffler.

Cua turbines thiab kev tsim kho tshuab

Ntau cov kabmob dov los ntawm Schaeffler muaj nyob rau hauv kev ua haujlwm siab, hwm zoo X-lub neej version.Piv txwv li, thaum tsim X-life series ntawm tapered roller bearings, tshwj xeeb yog them nyiaj rau kev ua tiav kev ntseeg siab thiab txo qis kev sib txhuam, tshwj xeeb tshaj yog nyob rau hauv high load applications thiab cov uas yuav tsum tau rotational raug.Qhov no txhais tau hais tias cov chaw tsim khoom ntawm hydraulic units lossis gearboxes (pinion bearing support) xws li cov uas pom nyob rau hauv cov cua turbines, tsheb ua liaj ua teb thiab siv tshuab, tam sim no tuaj yeem dhau qhov kev txwv dhau los, nrog rau kev txhim kho kev ua haujlwm zoo.Nyob rau hauv cov nqe lus ntawm downsizing, kev txhim kho cov yam ntxwv ntawm X-lub neej bearings txhais tau hais tias qhov kev ua tau zoo ntawm lub gearbox yog txhim kho, thaum lub hnab ntawv tsim tseem zoo ib yam.

Qhov 20% kev txhim kho nyob rau hauv dynamic load ntsuam xyuas thiab yam tsawg kawg nkaus 70% kev txhim kho nyob rau hauv lub hauv paus ntsuam xyuas lub neej tau ua tiav los ntawm kev txhim kho cov geometry, nto zoo, cov ntaub ntawv, qhov ntev thiab khiav qhov raug ntawm cov bearings.

Cov khoom siv zoo tshaj plaws uas siv rau hauv kev tsim khoom ntawm X-life tapered roller bearings yog tshwj xeeb hauv kev hloov kho kom tau raws li cov kev xav tau ntawm cov kabmob dov thiab yog qhov tseem ceeb hauv kev ua haujlwm ntawm cov kabmob.Cov qauv zoo ntawm cov khoom no muab siab toughness thiab yog li ntawd siab tiv thaiv cov khoom paug.Tsis tas li ntawd, lub logarithmic profile tau tsim rau cov kabmob sib tw thiab sab nraud ntawm cov menyuam yaus, uas them nyiaj rau cov kev ntxhov siab siab hauv qab cov khoom hnyav thiab ib qho "skewing" uas yuav tshwm sim thaum lub sijhawm ua haujlwm.Cov qhov chaw zoo tshaj plaws no pab tsim cov elasto-hydrodynamic lubricant zaj duab xis, txawm tias qhov kev khiav hauj lwm qis heev, uas ua rau cov bearings tuaj yeem ua haujlwm siab thaum pib.Tsis tas li ntawd, txhim kho qhov loj me thiab geometrical kam rau ua kom zoo tshaj qhov kev faib khoom.Yog li ntawd, kev ntxhov siab peaks yog zam, uas txo cov khoom thauj khoom.

Qhov kev sib txhuam torque ntawm X-life tapered roller bearings tshiab tau raug txo kom txog li 50% piv rau cov khoom siv.Qhov no yog vim qhov loj me me thiab khiav qhov tseeb ua ke nrog kev txhim kho saum npoo av.Kev hloov kho geometry ntawm lub nplhaib puab sab hauv thiab cov menyuam kawg lub ntsej muag kuj pab txo qis kev sib txhuam.Raws li qhov tshwm sim, bearing kev khiav hauj lwm kub kuj tau txo los ntawm 20%.

X-lub neej tapered cov menyuam bearings tsis yog tsuas yog kev lag luam ntau dua, tab sis kuj ua rau qis qis kev ua haujlwm kub, uas nyob rau hauv lem, qhov chaw tsis tshua muaj zog ntawm cov roj nplua nyeem.Qhov no ua rau lub sijhawm tu ncua kom ncua thiab ua rau cov kabmob ua haujlwm ntawm cov suab nrov txo.


Lub sij hawm xa tuaj: Plaub Hlis-19-2021
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