Tom qab cov kabmob tau ua haujlwm rau lub sijhawm, nws yog qhov yuav tsum tau muaj kev saib xyuas lossis kev puas tsuaj thiab hloov pauv. Nyob rau hauv thaum ntxov hnub ntawm txoj kev loj hlob ntawm cov machinery kev lag luam, yuav tsum muaj ntau nrov ntawm kev paub thiab paub txog kev nyab xeeb cov txheej txheem. Niaj hnub no, peb tsuas yog tham txog disassembly ntawm bearings.
Nws yog qhov tshwm sim rau qee tus neeg kom disassemble bearings sai sai yam tsis tau kuaj xyuas lawv. Thaum qhov no tuaj yeem tshwm sim tau zoo, nws yog ib qho tseem ceeb uas yuav tsum xav txog tias tsis yog txhua qhov kev puas tsuaj pom nyob rau saum npoo ntawm cov kabmob. Tej zaum yuav muaj kev puas tsuaj sab hauv uas tsis tuaj yeem pom. Ntxiv mus, bearing steel yog tawv thiab nkig, txhais tau hais tias nws tuaj yeem tawg hauv qab nws qhov hnyav, ua rau muaj kev puas tsuaj loj.
Nws yog ib qho tseem ceeb kom ua raws li cov txheej txheem kev tshawb fawb thiab siv cov cuab yeej tsim nyog thaum txhim kho lossis disassembling cov kabmob kom tsis txhob muaj kev puas tsuaj. Qhov tseeb thiab ceev disassembly ntawm bearings yuav tsum muaj kev txawj ntse thiab kev paub, uas tau tham ntau hauv kab lus no.
Kev nyab xeeb ua ntej
Kev nyab xeeb yuav tsum ib txwm yog qhov tseem ceeb tshaj plaws ntawm kev ua haujlwm, suav nrog cov kabmob disassembly. Bearings yuav muaj kev hnav thiab tsim kua muag thaum kawg ntawm lawv lub neej. Nyob rau hauv cov ntaub ntawv no, yog hais tias tus txheej txheem disassembly tsis tau ua kom raug thiab ib tug ntau ntawm cov sab nraud quab yuam yog siv, muaj peev xwm ntawm cov bearing breaking ntau. Qhov no tuaj yeem ua rau cov hlau tawg ya tawm, ua rau muaj kev nyab xeeb loj heev. Yog li ntawd, nws raug pom zoo kom siv daim pam tiv thaiv thaum disassembling cov kabmob kom muaj kev nyab xeeb.
Classification ntawm bearing disassembly
Thaum qhov kev txhawb nqa qhov ntev yog tsim kom raug, bearings nrog clearance fits tuaj yeem raug tshem tawm los ntawm kev ua kom cov bearings, tsuav yog lawv tsis deformed los yog xeb vim siv ntau dhau thiab daig ntawm qhov sib txuam. Tsim nyog disassembly ntawm bearings nyob rau hauv kev cuam tshuam haum tej yam kev mob yog lub ntsiab ntawm bearing disassembly technology. Bearing cuam tshuam haum yog muab faib ua ob hom: sab hauv lub nplhaib cuam tshuam thiab sab nraud cuam tshuam. Hauv kab lus hauv qab no, peb yuav tham txog ob hom no sib cais.
1. Kev cuam tshuam ntawm lub nplhaib puab ntawm cov kabmob thiab tshem tawm haum ntawm lub nplhaib sab nraud
1. Cylindrical ncej
Bearing disassembly yuav tsum tau siv cov cuab yeej tshwj xeeb. Lub ruber feem ntau yog siv rau cov kabmob me me. Cov pullers tuaj nyob rau hauv ob hom - ob-claw thiab peb-claw, ob qho tib si ntawm cov uas tuaj yeem threaded lossis hydraulic.
Cov cuab yeej siv niaj hnub yog cov xov rub, uas ua haujlwm los ntawm kev ua haujlwm ntawm qhov nruab nrab ntsia hlau nrog qhov nruab nrab ntawm lub taub hau, siv qee cov roj rau hauv qhov nruab nrab ntawm lub ncej, thiab tom qab ntawd hooking tus nuv ntawm lub ntsej muag kawg ntawm cov kabmob puab lub nplhaib. Thaum tus nuv nyob rau hauv txoj hauj lwm, ib tug ciaj ntswj yog siv los tig tus pas nrig nruab nrab, uas ces rub tawm cov kabmob.
Ntawm qhov tod tes, hydraulic ruber siv cov khoom siv hydraulic hloov cov xov. Thaum pressurized, lub piston hauv nruab nrab txuas ntxiv, thiab cov kabmob yog rub tawm tsis tu ncua. Nws yog sai dua li cov tsoos xov ruber, thiab cov cuab yeej hydraulic tuaj yeem tawm sai sai.
Qee zaum, tsis muaj qhov chaw rau cov claws ntawm ib txwm rub tawm ntawm lub ntsej muag kawg ntawm lub nplhaib puab ntawm cov kabmob thiab lwm yam khoom. Nyob rau hauv cov xwm txheej zoo li no, yuav siv tau ob daim splint. Koj tuaj yeem xaiv qhov loj me ntawm cov splint thiab disassemble nws cais los ntawm kev siv lub siab. Ib feem ntawm cov plywood tuaj yeem ua thinner kom lawv haum rau hauv qhov chaw nqaim.
Thaum ib pawg loj ntawm cov kabmob me me yuav tsum tau muab tshem tawm, lub tshuab hluav taws xob nrawm nrawm kuj tseem siv tau (raws li qhia hauv qab no).
▲ Ceev disassemble hydraulic ntaus ntawv
Rau lub disassembly ntawm ib qho bearings ntawm railway tsheb qag, kuj muaj tshwj xeeb mobile disassembly li.
▲ Mobile disassembly device
Yog hais tias qhov luaj li cas ntawm cov kabmob loj, ces yuav tsum muaj zog ntau dua los txiav nws. Nyob rau hauv cov ntaub ntawv no, cov pullers dav yuav tsis ua hauj lwm, thiab ib tug yuav tsum tau tsim tshwj xeeb cov cuab yeej rau disassembly. Txhawm rau kwv yees qhov tsawg kawg nkaus quab yuam uas yuav tsum tau ua rau disassembly, koj tuaj yeem xa mus rau lub installation quab yuam uas xav tau rau cov kabmob kom kov yeej qhov cuam tshuam. Cov mis laij lej yog raws li nram no:
F = 0.5 * π * u * W * δ * E * (1-(d/d0)2)
F = Force (N)
μ = kev sib txhuam coefficient ntawm lub nplhaib puab thiab ncej, feem ntau nyob ib ncig ntawm 0.2
W = lub nplhaib sab hauv dav (m)
δ = cuam tshuam haum (m)
E = Young's modulus 2.07 × 1011 (Pa)
d = bearing puab diam (mm)
d0 = nruab nrab txoj kab uas hla ntawm sab nrauv raceway ntawm lub nplhaib puab (mm)
np = 3.14
Thaum lub zog yuav tsum tau disassemble ib tug bearing yog heev zoo rau cov pa txoj kev thiab txaus ntshai ua rau cov kabmob, ib tug roj qhov feem ntau tsim nyob rau hauv lub kawg ntawm ncej. Lub qhov roj no txuas mus rau txoj haujlwm ntawm cov kabmob thiab tom qab ntawd nkag mus rau ntawm lub ntsej muag radially. Ib qho annular zawj yog ntxiv, thiab lub twj tso kua mis hydraulic yog siv los ua kom lub zog ntawm qhov kawg kom nthuav lub nplhaib puab thaum lub sij hawm disassembly, txo cov quab yuam uas yuav tsum tau muaj rau disassembly.
Yog tias cov kabmob loj dhau los ua kom tawg los ntawm kev rub yooj yim, ces cov cua sov disassembly yuav tsum tau siv. Rau txoj kev no, ua kom tiav cov cuab yeej xws li jacks, ntsuas qhov siab, cov khoom sib kis, thiab lwm yam, yuav tsum tau npaj rau kev ua haujlwm. Cov txheej txheem suav nrog cua sov lub kauj ncaj qha mus rau txoj kev sib tw ntawm lub nplhaib puab kom nthuav nws, ua kom yooj yim rau disassemble cov kabmob. Tib txoj kev cua sov no kuj tseem siv tau rau cov kabmob cylindrical nrog cov menyuam sib cais. Los ntawm kev siv txoj kev no, cov kabmob tuaj yeem raug tshem tawm yam tsis muaj kev puas tsuaj.
▲ Cov txheej txheem cua sov disassembly
2. Tapered ncej
Thaum disassembling ib tug tapered bearing, lub ntsej muag loj kawg ntawm lub nplhaib puab yuav tsum tau rhuab vim nws cheeb tsam yog ho loj dua lub ntsej muag kawg. Lub tshuab hluav taws xob hloov tau yooj yim nruab nrab zaus induction rhaub yog siv los ua kom sov lub nplhaib sab hauv sai, tsim kom muaj qhov sib txawv ntawm qhov kub thiab txias nrog cov ncej thiab tso cai rau disassembly. Raws li tapered bearings yog siv nyob rau hauv khub, tom qab tshem tawm ib lub nplhaib puab, lwm tus yuav inevitably raug tshav kub. Yog tias qhov kawg ntawm qhov loj tsis tuaj yeem ua kom sov, lub tawb yuav tsum raug rhuav tshem, cov chais tshem tawm, thiab lub nplhaib puab lub cev raug. Lub kauj tuaj yeem muab tso ncaj qha rau ntawm txoj kev sib tw rau cua sov.
▲ Yooj yim coil nruab nrab zaus induction rhaub
Cov cua kub ntawm lub rhaub yuav tsum tsis txhob ntau tshaj 120 degrees Celsius vim hais tias bearing disassembly yuav tsum tau ceev ceev kub sib txawv thiab cov txheej txheem khiav hauj lwm, tsis kub. Yog hais tias qhov kub thiab txias ambient siab heev, qhov cuam tshuam loj heev, thiab qhov kub ntawm qhov sib txawv tsis txaus, cov dej khov qhuav (cov pa roj carbon dioxide) tuaj yeem siv los ua ib qho kev pabcuam. Cov dej khov qhuav tuaj yeem muab tso rau ntawm phab ntsa sab hauv ntawm lub hollow ncej kom sai txo qhov kub ntawm lub ncej (feem ntau yog rau qhov loj-qhov loj me.cnc ntu), yog li ua kom qhov kub thiab txias sib txawv.
Rau lub disassembly ntawm tapered bore bearings, tsis txhob tshem tawm tag nrho cov clamping txiv ntseej los yog mechanism ntawm qhov kawg ntawm tus ncej ua ntej disassembly. Tsuas yog loosen nws kom tsis txhob muaj kev sib tsoo poob.
Lub disassembly ntawm loj-loj tapered shafts yuav tsum tau siv cov disassembly roj qhov. Noj cov dov zeb plaub-kab tapered bearing TQIT nrog ib tug tapered bore raws li ib tug piv txwv, lub puab nplhaib ntawm cov kabmob yog muab faib ua peb qhov chaw: ob tug ib leeg-kab puab rings thiab ib tug ob sab puab nplhaib nyob rau hauv nruab nrab. Muaj peb lub qhov roj ntawm qhov kawg ntawm lub yob, sib haum rau cov cim 1 thiab 2,3, qhov twg ib qho sib haum mus rau lub nplhaib sab hauv sab hauv, ob qhov sib raug rau ob lub nplhaib sab hauv nruab nrab, thiab peb sib raug rau lub nplhaib puab sab hauv nrog. txoj kab uas hla loj tshaj plaws. Thaum disassembling, disassemble nyob rau hauv ib ntu ntawm serial tooj thiab pressurize qhov 1, 2, thiab 3, feem. Tom qab tag nrho ua tiav, thaum cov kabmob tuaj yeem nqa tau thaum tsav tsheb, tshem lub pob khawm ntawm qhov kawg ntawm tus ncej thiab disassemble cov kabmob.
Yog hais tias cov kabmob yuav tsum tau siv dua tom qab disassembly, lub zog tawm thaum lub sij hawm disassembly yuav tsum tsis txhob kis los ntawm cov khoom dov. Rau kev sib cais bearings, lub nplhaib bearings, ua ke nrog lub dov lub nplhaib sib dhos, tuaj yeem muab cais tawm ntawm lwm lub nplhaib bearings. Thaum disassembling tsis-separable bearings, koj yuav tsum xub tshem tawm cov bearings rings nrog ib tug clearance haum. Txhawm rau disassemble bearings nrog kev cuam tshuam haum, koj yuav tsum siv cov cuab yeej sib txawv raws li lawv hom, qhov loj me, thiab haum txoj kev.
Disassembly ntawm bearings mounted ntawm cylindrical ncej txoj kab uas hla
Txias disassembly
Daim duab 1
Thaum dismantling me me bearings, lub nplhaib bearings yuav raug tshem tawm ntawm lub ncej los ntawm tapping rau sab ntawm lub nplhaib bearing maj mam nrog ib tug haum punch los yog ib tug neeg kho tshuab rub (Daim duab 1). Kev tuav yuav tsum tau siv rau lub nplhaib sab hauv lossis cov khoom uas nyob ib sab. Yog hais tias lub xub pwg nyom thiab lub xub pwg nyom hauv vaj tse tau muab nrog cov grooves kom haum rau lub rub lub tuav, cov txheej txheem disassembly tuaj yeem yooj yim. Tsis tas li ntawd, qee qhov threaded qhov yog machined ntawm lub qhov xub pwg nyom los pab txhawb cov bolts kom thawb tawm cov bearings. (Daim duab 2).
Daim duab 2
Cov kabmob loj thiab nruab nrab feem ntau xav tau ntau dua li cov cuab yeej siv tshuab tuaj yeem muab tau. Yog li ntawd, nws raug nquahu kom siv cov cuab yeej siv hluav taws xob hydraulic lossis kev txhaj tshuaj roj, lossis ob qho tib si ua ke. Qhov no txhais tau tias cov ncej yuav tsum tau tsim nrog cov roj qhov thiab cov roj grooves (Daim duab 3).
duab 3
Kub disassembly
Thaum dismantling lub nplhaib puab ntawm rab koob rau cov menyuam bearings lossis NU, NJ, thiab NUP cylindrical roller bearings, cov txheej txheem thermal disassembly yog tsim. Muaj ob qho khoom siv cua sov uas nquag siv: cov cua sov rings thiab adjustable induction heaters.
Rings cua sov feem ntau yog siv rau kev teeb tsa thiab disassembly ntawm lub nplhaib puab ntawm cov kabmob me me thiab nruab nrab ntawm tib qhov loj. Lub nplhaib cua sov yog ua los ntawm lub teeb alloy thiab yog radially slotted. Nws kuj yog nruab nrog ib qho hluav taws xob insulated kov.(Fig. 4).
Daim duab 4
Yog tias cov nplhaib sab hauv ntawm cov kab sib txawv yog nquag disassembled, nws raug nquahu kom siv lub tshuab cua sov induction adjustable. Cov cua sov no (Daim duab 5) ua kom sov lub nplhaib sab hauv tsis muaj cua sov ntawm lub ncej. Thaum disassembling lub puab rings ntawm loj cylindrical cov menyuam bearings, ib co tshwj xeeb tsau induction cua sov yuav siv tau.
Daim duab 5
Tshem cov bearings mounted ntawm conical ncej diameters
Txhawm rau tshem tawm cov kabmob me me, koj tuaj yeem siv lub tshuab lossis hydraulically powered puller los rub lub nplhaib puab. Qee qhov rubers tuaj nrog lub caij nplooj ntoos hlav-ua haujlwm caj npab uas muaj tus kheej tsim qauv kom yooj yim rau cov txheej txheem thiab tiv thaiv kev puas tsuaj rau phau ntawv. Thaum lub ruber claw tsis tuaj yeem siv rau ntawm lub nplhaib sab hauv, cov kabmob yuav tsum tau muab tshem tawm los ntawm lub nplhaib sab nraud lossis los ntawm kev siv lub tshuab rub nrog lub tshuab rub tawm. (Daim duab 6).
Daim duab 6
Thaum disassembling nruab nrab thiab loj bearings, kev siv cov roj txhaj tshuaj tuaj yeem ua rau kom muaj kev nyab xeeb thiab yooj yim rau cov txheej txheem. Txoj kev no yuav tsum tau txhaj cov roj hydraulic ntawm ob lub conical mating nto, siv cov roj qhov thiab zawj, nyob rau hauv siab. Qhov no txo cov kev sib txhuam ntawm ob qhov chaw, tsim kom muaj lub zog axial uas cais cov kabmob thiab cov kab uas hla.
Tshem tawm cov kabmob ntawm lub tes tsho adapter.
Rau cov kabmob me me tau nruab rau ntawm cov ncej ncaj nrog lub tes tsho adapter, koj tuaj yeem siv rauj los khob cov hlau me me sib npaug ntawm lub ntsej muag kawg ntawm lub nplhaib puab ntawm cov kabmob kom tshem tawm (Daim duab 7). Ua ntej no, lub tes tsho adapter locking txiv ntseej yuav tsum tau loosened ob peb lem.
Daim duab 7
Rau cov kabmob me me tau nruab rau ntawm lub tes tsho adapter nrog cov kauj ruam, lawv tuaj yeem raug tshem tawm los ntawm kev siv rauj los kais lub ntsej muag me me ntawm lub tes tsho adapter xauv txiv ntoo los ntawm lub tes tsho tshwj xeeb (Daim duab 8). Ua ntej no, lub tes tsho adapter locking txiv ntseej yuav tsum tau loosened ob peb lem.
Daim duab 8
Rau cov bearings mounted ntawm lub tes tsho adapter nrog stepped shafts, kev siv hydraulic ceev tuaj yeem ua rau cov kabmob tshem tawm yooj yim dua. Rau lub hom phiaj no, ib qho khoom siv nres yuav tsum tau muab tso ze rau ntawm hydraulic txiv ntoo piston (Daim duab 9). Cov roj filling txoj kev yog ib txoj kev yooj yim, tab sis lub tes tsho adapter nrog cov roj qhov thiab cov roj grooves yuav tsum tau siv.
Daim duab 9
Disassemble cov kabmob ntawm lub tes tsho tshem tawm
Thaum tshem tawm cov kabmob ntawm lub tes tsho tshem tawm, lub ntsuas phoo yuav tsum tau muab tshem tawm. (Xws li xauv txiv ntseej, daim hlau kawg, thiab lwm yam.)
Rau cov kabmob me me thiab nruab nrab, cov txiv ntseej xauv, nuv wrenches lossis cuam tshuam wrenches tuaj yeem siv los rhuav tshem lawv (Daim duab 10).
Daim duab 10
Yog tias koj xav tshem tawm cov kabmob nruab nrab thiab loj uas tau nruab rau ntawm lub tes tsho tshem tawm, koj tuaj yeem siv hydraulic ceev kom yooj yim tshem tawm. Txawm li cas los xij, nws raug pom zoo kom nruab ib lub cuab yeej nres tom qab hydraulic txiv ntoo ntawm lub ncej kawg (raws li qhia hauv daim duab 11). Cov cuab yeej nres no yuav tiv thaiv lub tes tsho tshem tawm thiab cov txiv ntoo hydraulic los ntawm ya tawm ntawm cov ncej tam sim ntawd, yog tias lub tes tsho tshem tawm tau sib cais los ntawm nws txoj haujlwm mating.
Daim duab 11 Tingshaft bearing
2. Kev cuam tshuam haum ntawm cov kabmob sab nraud
Yog tias lub nplhaib sab nraud ntawm cov kabmob muaj qhov cuam tshuam zoo, nws yog ib qho tseem ceeb kom ntseeg tau tias lub nplhaib sab nraud lub xub pwg txoj kab uas hla tsis me tshaj qhov kev txhawb nqa txoj kab uas hla yuav tsum tau los ntawm cov kabmob ua ntej dismantling. Txhawm rau disassemble lub nplhaib sab nraud, koj tuaj yeem siv daim duab kos duab qhia hauv daim duab hauv qab no.
Yog tias lub nplhaib sab nraud ntawm lub xub pwg ntawm qee qhov kev siv yuav tsum tau ua kom tiav, ob qho kev tsim qauv hauv qab no yuav tsum tau txiav txim siab thaum lub sijhawm tsim:
• Ob los yog peb qhov chaw tuaj yeem khaws cia ntawm cov kauj ruam ntawm lub rooj tsav tsheb kom lub ruber claws muaj qhov taw tes muaj zog rau kev yooj yim disassembly.
• Tsim plaub qhov ntawm txoj hlua ntawm lub nraub qaum ntawm lub rooj zaum kom ncav cuag lub ntsej muag kawg. Lawv tuaj yeem raug kaw nrog cov ntsia hlau ntsaws ntawm lub sijhawm zoo tib yam. Thaum disassembling, hloov lawv nrog ntev screws. Tighten cov screws ntev kom maj mam thawb tawm lub nplhaib sab nraud.
Yog tias cov kabmob loj lossis qhov cuam tshuam tseem ceeb, cov txheej txheem hloov tau yooj yim induction cua sov tuaj yeem siv rau kev tshem tawm. Cov txheej txheem no yog ua los ntawm cov kab uas hla sab nraud ntawm lub thawv cua sov. Sab nrauv ntawm lub thawv yuav tsum du thiab tsis tu ncua kom tsis txhob muaj cua sov hauv zos. Txoj kab nruab nrab ntawm lub thawv yuav tsum yog perpendicular mus rau hauv av, thiab yog tias xav tau, lub jack tuaj yeem siv los pab.
Cov saum toj no yog ib tug dav dav txheej txheem cej luam ntawm disassembly txoj kev rau bearings nyob rau hauv ntau lub sij hawm. Txij li thaum muaj ntau hom bearings siv dav, cov txheej txheem disassembly thiab kev ceev faj yuav txawv. Yog tias koj muaj qee qhov kev xav tau tshwj xeeb, thov koj xav sab laj nrog Dimond Rolling Mill Bearing Engineering Technical Team. Peb yuav siv peb cov kev txawj ntse thiab kev txawj ntse los daws cov teeb meem sib txawv rau koj. Los ntawm kev ua raws li txoj hauv kev kom raug cov kabmob disassembly, koj tuaj yeem tswj tau thiab hloov cov kabmob thiab txhim kho cov cuab yeej ua haujlwm tau zoo.
Ntawm Anebon, peb ntseeg ruaj khov nyob rau hauv "Cov Neeg Siv Khoom Ua Ntej, Cov Khoom Zoo Txhua Yam". Nrog rau ntau tshaj 12 xyoo ntawm kev lag luam hauv kev lag luam, peb tau ua haujlwm zoo nrog peb cov neeg siv khoom los muab cov kev pabcuam zoo thiab tshwj xeeb rau CNC milling qhov me me,CNC machined aluminium qhov chaw, thiabtuag-casting qhov chaw. Peb txaus siab rau peb cov khoom siv txhawb nqa zoo uas ua kom muaj txiaj ntsig zoo thiab muaj txiaj ntsig zoo. Peb kuj tau tshem tawm cov khoom lag luam uas tsis zoo, thiab tam sim no ob peb lub Hoobkas OEM tau koom tes nrog peb thiab.
Post lub sij hawm: May-06-2024