Thaum lub sij hawm siv cov dov bearings, vim lawv tus kheej zoo thiab lwm yam kev mob, lawv cov kabmob muaj peev xwm, kev sib hloov raug thiab kev sib txhuam kev ua haujlwm yuav hloov. Thaum qhov Performance index ntawm cov kabmob qis dua qhov kev siv thiab tsis tuaj yeem ua haujlwm ib txwm, nws yog hu ua bearing puas. Los yog tsis ua hauj lwm, ib zaug cov kabmob puas lawm thiab lwm yam kev npaj txhij txog, yuav muaj ntau yam txawv txav xws li tshuab thiab khoom siv, kev ua haujlwm puas tsuaj thiab lwm yam.
Yog tias cov kabmob tawg, peb yuav tsum ua ntej txheeb xyuas qhov ua tsis tiav, thiab tom qab ntawd nrhiav kev daws teeb meem. Yog li ntawd, nws yog ib qho tsim nyog los tshawb xyuas thiab daws cov laj thawj hauv lub sijhawm luv luv thiab siv cov kev ntsuas sib xws.
Cov yam ntxwv uas ua rau cov kabmob ua rau qub thiab tsis zoo yog feem ntau tshwm sim los ntawm kev siv tsis raug ntawm cov kabmob?Cov hauv qab no yog ib qho kev piav qhia ntawm cov yam ntxwv uas ua rau cov kabmob feem ntau puas. Tuam Tshoj Bearing Network qhia cov hauv qab no:
Bearings yog qhov tsis zoo, lawv yuav raug puas ntsoog ntev li ntev tau siv, tab sis tsuas yog tom qab qee qhov sib xyaw ua ke lawv yuav tshwm sim. Uas yog hais, lawv yuav tsis raug puas tsuaj mus txog rau thaum ib tug npaum li cas. Tau kawg, qhov kev puas tsuaj ntawm dov bearings yog qhov nyuaj dua li ntawm cov khoom siv tshuab dav dav. Kev puas tsuaj ntawm dov bearings yog tus cwj pwm los ntawm ntau qhov tshwm sim thiab cov laj thawj nyuaj. Ntxiv nrog rau cov yam ntxwv ntawm cov kabmob tsim thiab tsim khoom, feem ntau ntawm kev puas tsuaj ntawm cov kabmob yog vim kev siv tsis raug, xws li: cov ntaub ntawv tsim nyog xaiv, tsim tsis tsim nyog, kev teeb tsa tsis raug, Nws yog tshwm sim los ntawm lwm yam xws li lubrication tsis zoo thiab sealing tsis zoo.Cov hauv qab no 8 cov ntsiab lus yog lub hauv paus tseem ceeb rau kev ua haujlwm tsis ua haujlwm:
1. Hlau corrosion tshwm sim. Yog tias tsis muaj lubrication, nws yooj yim rau oxidized los ntawm huab cua thiab xeb. Txhawm rau tiv thaiv xeb ntawm cov kabmob, tsis txhob siv cov hlwv. Cov bearings yog ua los ntawm stainless hlau, tab sis lawv kuj ntshai dej. Thaum tuav cov kabmob ntawm tes, ntxuav tawm cov hws ntawm tes, thiab siv cov roj ntxhia zoo ua ntej ua haujlwm, tshwj xeeb tshaj yog nyob rau lub caij ntuj nag thiab lub caij ntuj sov, xyuam xim tshwj xeeb rau kev tiv thaiv xeb.
Qhov tshwj xeeb yog vim li cas rau lub ntuj corrosion thiab hnav ntawm bearings yog raws li nram no:
①Oxidation hnav. Lub ncov me me thiab cov kwj deg ntawm qhov sib txhuam ntawm qhov sib txhuam sib sib zog nqus, ua rau cov tawv nqaij maj mam poob thiab hnav. Cov peaks me me thiab cov kwj deg ntawm qhov chaw txheeb ze ntawm cov kabmob yog ua ke nrog cov oxidation nyob rau hauv cov huab cua los ua ib tug brittle oxide uas tsis ruaj khov rau lub hauv paus hlau. Cov oxide yog ib qho yooj yim kom poob thaum muaj kev sib txhuam, thiab qhov hnav uas tshwm sim yog hu ua oxidation hnav.
② Kev sib txhuam kub thiab hnav. Thaum cov kabmob ua haujlwm nyob rau hauv cov xwm txheej ntawm kev kub ceev thiab hnyav load thiab lubrication tsis zoo, lub ncov thiab kwj deg ntawm qhov chaw yuav tsim kom muaj qhov kub thiab txias vim kev sib txhuam, hardness thiab hnav tsis kam ntawm cov ntsiab lus sib cuag yuav txo qis, thiab txawm tias adhesion thiab tearing. tshwm sim. Hom kev hnav no yog hu ua frictional heat wear.
③ Hard particle hnav. Yog hais tias lub bearing yog nyob rau hauv cov txheeb ze motion. Qhov txav ntawm cov kabmob tsis sib xws, thiab muaj cov khoom tawv tawv, lossis cov impurities xws li xuab zeb, kev sib txhuam thiab cov chips poob rau hauv qhov txav ntawm cov kabmob. Thaum lub sij hawm txheeb ze ntawm cov kabmob, cov khoom tawv tawv lossis cov impurities yuav khawb qhov ntawm cov kabmob lossis txawm tias daim grooves. Hom hnav no hu ua tawv-grain hnav.
④ Pitting hnav. Iav, bearings thiab lwm yam dov qhov chaw sib cuag yog ib ntus raug rau kev sib cuag loj hauv cov txheej txheem txheeb ze. Tom qab lub sij hawm ntev, cov hlau nto yog qaug zog, ua rau me me tawg thiab yaig ntawm cov kabmob nto. Hom hnav no hu ua pitting hnav.
Ua rau xeb lossis corrosion, hnav los ntawm tshuaj lom neeg corrosion. Cov kabmob nto yog corroded los ntawm cov kua qaub, alkali, kua ntsev los yog cov pa phem. Cov txheej txheem hnav yog nrawm, uas yog hu ua hnav los ntawm tshuaj lom neeg corrosion.
Kev puas tsuaj los ntawm kev sib cuag nrog cov kua dej ib ntus xws li dej, kua qaub, alkali, ntsev, lossis cov pa phem: cov khoom tsis txav ntawm cov khoom siv. Kev puas tsuaj los ntawm xeb lossis corrosion yog hu ua corrosion puas.
2. Cov kabmob load loj dhau los yog siv tsis raug. Thaum siv nws, lub load ntawm cov kabmob tsis tuaj yeem tshaj. Zoo li lub tsheb, tej zaum yuav yog tias lub load hnyav dhau lawm, uas yuav yooj yim puas rau cov kabmob. Yog li ntawd, lub tsheb thauj khoom muaj teeb meem ntau dua li lub tsheb, uas yog tshwm sim los ntawm ntau qhov chaw uas tsis tuaj yeem tiv taus nws.
3. Cov kabmob clearance tsawg dhau. Lub log pem hauv ntej ntawm lub tsheb yog slant-push bearing, thiab qhov clearance yuav tsum tau kho. Yog tias nws xoob dhau lawm, nws yuav ua rau lub suab nrov txawv txav, deflection, thiab lub log co. Yog tias nws nruj heev, nws yuav ua rau kom hnav. Ob leeg phem. Xyuas lub pob saum npoo rau burrs, khawb thiab tawg. Txawm hais tias qhov radial clearance thiab axial clearance ntawm lub qub bearing yog tsim nyog, feem ntau tsuas yog ntsuas radial clearance. Rau cov bearings tshiab, thawj zaug xyuas seb hom kabmob muaj tseeb. Xa mus rau Table 1 rau cov qauv radial clearance ntawm dov bearings. Piv txwv li: Qauv 6318 sib sib zog nqus groove pob bearing, lub puab kab ntawm cov kabmob yog 90mm, radial clearance range yog 0.016 ~ 0.046mm, thiab qhov siab tshaj plaws hnav tus nqi ntawm cov kabmob kuj tuaj yeem pom tias yog 0.25mm.
Table 1
4. Siv cov kabmob tsis zoo. Kev tsim cov bearings yog tsim los ntawm qee lub tuam txhab me me. Cov txheej txheem ntau lawm tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, qhov tseeb ntawm lub tog raj kheej lossis lub thawv bearing yog qhov tsis zoo, thiab cov kabmob steel tsis ua tiav ua ntej nias. Yog li ntawd, cov bearings tsim tsis tau ntev.
5. Kev tsav tsheb tsis zoo kuj tuaj yeem ua rau lub tsheb bearing puas, tab sis vim li no yog me ntsis deb. Vim tias yog tias koj tsav tsheb tsis tu ncua, lwm qhov chaw yuav raug puas tsuaj ua ntej cov kabmob.
6. Kev teeb tsa tsis zoo. Txhawm rau txhim kho cov kabmob yog ua raws cov kauj ruam ntawm kev teeb tsa ntawm cov kabmob, tsis txhob nruab thiab disassemble ua phem. Txawm hais tias cov kabmob raug teeb tsa raug yog cuam tshuam nrog kev pabcuam lub neej ntawm cov kabmob, yog li txhua tus neeg yuav tsum tau saib xyuas nws. Thaum txhim kho cov kabmob, tsis txhob tuav nws ncaj qha los ntawm tes, vim tias cov hws ntawm tes kuj tuaj yeem ua rau xeb, thiab tsis txhob quav ntsej cov kev sib txuas me me. Thaum cov kabmob raug teeb tsa, qhov tseem ceeb tshaj plaws yog tsis pub muaj zog stamping, tsis txhob ntaus cov kabmob ncaj qha nrog rauj, tsis yog vim kev ntshai ntawm kev sib tsoo, tab sis ntshai tsam raug tsoo thiab deformed, thiab cov kabmob tsis tuaj yeem siv yog tias nws yog deformed. Tsis tas li ntawd, nws tsis raug tso cai kom xa cov siab los ntawm cov khoom dov.
7. Txawv teb chaws lub cev nkag. Siv cov cuab yeej tshwj xeeb kom ntau li ntau tau, thiab sim ua kom tsis txhob siv cov ntaub thiab cov fibers luv, thiaj li tiv thaiv cov fibers zoo los ntawm kev nkag mus rau hauv cov kabmob thiab ua rau tsis muaj kev puas tsuaj. Rau lwm qhov piv txwv, thaum txhim kho cov kabmob, cov neeg ua haujlwm tau siv txoj kev sib tw tooj liab, uas yog ib qho yooj yim ua rau lub zog tsis sib xws ntawm cov kabmob, ua rau lub cev deformation ntawm lub tawb, kev puas tsuaj rau cov dov cov ntsiab lus, thiab nce clearance. Cov hmoov tooj liab ya mus rau hauv lub tawb nqa khoom, uas yooj yim ua rau cov kabmob tsis ua haujlwm. Tsis tas li, thaum siv
8. Lub hardness tshwm sim los ntawm qhov kub tsis zoo, cov qauv metallographic lossis tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau hloov, uas txo cov hnav tsis kam thiab hardness ntawm cov kabmob nto thiab ua kom cov txheej txheem hnav. Cov hnav zoo li no yog hu ua hnav los ntawm kev kub ntxhov siab. Hnav los ntawm kev kub siab ua haujlwm. Thaum cov kabmob ua haujlwm ib ntus ntawm qhov kub thiab txias.
9. Cov roj ntau dhau ntawm cov kabmob thiab lub thawv yuav ua rau cov kabmob dov lub cev plam, ua rau lub caij dov hloov los ntawm kev sib txhuam ntawm kev sib txhuam mus rau kev sib txhuam, thiab kev puas tsuaj rau cov kabmob dov. Vim yog cov roj bearing ntau dhau, qhov chaw pub dawb hauv lub thawv bearing yog me me, thiab kev khiav ntawm cov kabmob Qhov kub yuav nce siab, qib roj yuav txo qis, lub lubricating roj zaj duab xis ntawm cov khoom yob yuav ua thinner, thiab Lub lubricating tej yam kev mob yuav tsis zoo, uas yuav yooj yim ua rau lub suab nrov txawv txav ntawm cov kabmob, plam ntawm qhov chaw, thiab ua rau lub neej luv ntawm cov kabmob. Feem ntau, muaj cov roj chamber nyob rau sab ntawm lub cav kawg npog. Raws li qhov ceev ntawm lub cev muaj zog, cov roj ntim ntawm cov kabmob chamber tuaj yeem ua raws li cov qauv hauv qab no: thaum lub cev muaj zog tsawg dua 1500r / min, cov roj filling yog 2/3 ntawm cov kabmob chamber ntim. Thaum qhov ceev ntawm 1500 thiab 3000r / min, nws yog 1/2 ntawm cov kabmob chamber ntim. Thaum qhov ceev tshaj 3000r / min, nws yuav tsum tsawg dua los yog sib npaug rau 1/3 ntawm cov kabmob ntim. Hauv cov txheej txheem ua haujlwm tiag tiag, rau cov bearings khiav ntawm qhov kub thiab kub ceev, cov bearings nrog sealing nto yuav tsum tau siv tsawg li sai tau, lub peev xwm ntawm cov roj cia ntawm lub cav roj yuav tsum tau nce, thiab cov roj nozzles yuav tsum tau muab tso rau. los txhim kho lub neej ua haujlwm ntawm lub cev muaj zog bearings.
10. Rau cov bearings nrog insulating tsim ntawm lub nplhaib sab nrauv, yuav tsum tau saib xyuas kom ntseeg tau tias cov rwb thaiv tsev tsis zoo. Yog hais tias cov kabmob rwb thaiv tsev puas thaum lub sijhawm teeb tsa, cov yeeb yaj kiab nyias nyias yuav raug rhuav tshem los ntawm cov ncej hluav taws xob. Tom qab cov roj zaj duab xis tawg lawm, tsis yog tsuas yog lub lubrication tej yam kev mob ntawm lub dov cov ntsiab lus yuav phem, tab sis kuj cov hluav taws xob sparks generated yuav ua rau hluav taws xob corrosion rau lub dov ntsiab ntawm cov kabmob, ua rau dov ntsiab. Qhov saum npoo tsis du, uas ua rau kom hnav ntawm cov kabmob.
Cov kabmob hnav tuaj yeem kho tau li no. Txoj kev daws teeb meem yog: nws yog ib qho tsim nyog yuav tsum rov kawm txog cov kev siv los yog rov xaiv cov kabmob, saib xyuas kev tshem tawm thiab xyuas qhov tseeb ntawm machining ntawm tus ncej thiab cov kabmob sawb, xyuas cov qauv tsim nyob ib puag ncig ntawm cov kabmob, thiab kawm thiab tshawb xyuas cov kabmob. txheej txheem installation, lubricant thiab lubrication txoj kev.
Cov kabmob hnav tuaj yeem kho hauv txoj kev no / kauj ruam
1. Ua qhov kev npaj ua haujlwm, uas yog, kev rhuav tshem cov khoom siv, kom muaj chaw tsim kho kom txaus thiab muaj kev nyab xeeb ua haujlwm;
2. Kev ntxuav ua ntej ntawm lub ntsej muag, uas yog, so ntxuav cov roj stains ntawm txoj haujlwm ntawm cov kabmob thiab qhov chaw ntawm qhov chaw, thiab tshem tawm cov ntsiab lus siab, burrs, xeb txheej, thiab lwm yam, siv 99.7 feem pua ntxhiab ethanol los ntxuav lub bearing txoj hauj lwm nto kom ntseeg tau tias tsis muaj av, kom qhuav;
3. So lub puab thiab sab nrauv ntawm cov pwm kom huv si, thiab so ib txheej nyias ntawm SD7000 pwm tso tawm tus neeg sawv cev ntawm lub puab nto ntawm pwm, tawm chute, bolts, ntsia liaj qhov rooj qhov, positioning pins, thiab positioning pin qhov, lub thinner lub zoo dua, qhuav rau kev siv;
4. Cov khoom siv SD7101H yog sib xyaw ua ke nruj raws li qhov sib piv rau qhov sib piv ntawm 2: 1, qhov sib xyaw yog txaus thiab tsis muaj xim sib txawv, thiab cov khoom sib xyaw yog siv sai sai rau qhov chaw ntawm cov kabmob;
5. Ceev nrooj nruab cov pwm nyob rau hauv qhov chaw, fasten lub bolts thiab nruab qhov chaw pins. Nyob rau hauv tus txheej txheem ntawm kev txhim kho pwm, ua tib zoo saib xyuas cov pwm kom tsis txhob axial txav ntawm pwm, thiab siv cov roj hmab rauj ntaus cov pwm nyob rau hauv lub voj voog kev taw qhia thaum lub sij hawm tus txheej txheem ntawm zawm pwm kom cov khoom faib ntau yam. thiab zam qhov deformation ntawm pwm;
6. Kev kho cov khoom: thaum qhov kub thiab txias yog 24 degree, nws raug nquahu kom tshem tawm cov pwm tsis pub tsawg tshaj 4 teev; Thaum lub ambient kub qis dua 24 degree, nws raug nquahu kom siv lub teeb iodine tungsten kom sov tsis pub tsawg tshaj 3 teev;
7. Ceev faj thaum dismantling pwm kom tsis txhob muaj cov khoom puas los yog poob thaum lub sij hawm disassembly txheej txheem. Tom qab cov pwm yog disassembled, siv ib tug sawb los yog ib tug txiav hniav kom tshem tawm cov tshaj cov khoom extruded los ntawm cov paug chute, thiab nyob rau tib lub sij hawm zom nws nyob rau hauv lub zuag qhia tag nrho nto;
8. Assembling qhov chaw: Thaum sib dhos cov khoom, nws raug nquahu kom siv cov txheej nyias nyias ntawm pwm tso tawm tus neeg sawv cev rau cov mating saum npoo ntawm cov khoom ua ntej, thiab siv cov txheej nyias nyias ntawm cov khoom siv rau cov kabmob, thiab nruab lawv sai sai hauv kev nruj nruj. nrog cov txheej txheem sib dhos.