Nrog rau kev nthuav dav txuas ntxiv ntawm kev lag luam mining, cov cuab yeej siv tshuab loj tau qhia rau hauv kev ua haujlwm ntawm lub mine, uas tau txhawb nqa kev ua haujlwm ntawm mine. Ntau lub hoist loj loj siv dov bearings, uas tuaj yeem siv tau zoo dua rau kev lag luam mining. Txawm li cas los xij, lub cev muaj zog nrog zawv zawg bearings kuj tseem siv tau hauv kev lag luam mining, uas tuaj yeem ua rau lub neej ntev ntawm cov zawv zawg bearing thiab hoist lub cev muaj zog. Tau kawg, kev saib xyuas ntawm cov zawv zawg kabmob yog qhov nyuaj, thiab raug txwv los ntawm ntau yam, uas ua rau muaj kev txwv tsis zoo rau kev ua haujlwm ntawm lub hoist lub cev muaj zog hauv cov thee mining. Yog li ntawd, nws yog ib qho tseem ceeb heev los tswj thiab kho cov zawv zawg bearings ntawm lub hoist loj lub cev muaj zog.
1. Cov xwm txheej ntawm zawv zawg bearing kua txhuam
Daim ntawv lubrication ntawm zawv zawg bearing yog kua, thiab nws cov txheej txheem tsim yog qhov hnyav. Lub xeev ncua kev kawm ntawv tsim los ntawm lub rotating ncej txhawb los ntawm lub dynamic siab ntawm lubricating roj cov ntaub ntawv ua kua lubrication, uas ua rau cov kev sib txhuam ntawm cov kabmob. Lub thickness ntawm cov kua lubricating roj yog qhov tseem ceeb dua. Yog hais tias tus nqi ntawm lubrication yog me me, nws yuav aggravate lub roughness ntawm ncej txoj kab uas hla thiab kev sib txhuam nto ntawm cov kabmob, ua rau lub deviation ntawm lub taub hau axis rotation axis, cuam tshuam rau zawv zawg bearings, thiab ua rau lub thickness ntawm cov roj yam tsawg kawg nkaus. zaj duab xis, ua rau lub lubrication tsis ua hauj lwm ntawm lub taub hau ncej thiab cov kabmob.
Cov zawv zawg kabmob tuaj yeem tsuas yog tsav cov kev taw qhia kev sib hloov ntawm cov ntawv xov xwm kom txav mus thiab tsim cov ntab eccentricity nyob rau hauv kev sib txhuam ntawm cov kua lubrication. Lub eccentricity yog qhov chaw nruab nrab ntawm cov ntawv xov xwm thiab cov kabmob qhov uas tsawg dua li qhov chaw zoo li qub. Nws muaj feem xyuam rau qhov ceev ntawm cov kabmob. Qhov ceev ntawm bearing ceev yog, qhov me me qhov eccentricity yuav. Nyob rau lub sijhawm no, cov nyhuv dynamic siab yog tsim nyob rau hauv cov kabmob, uas tuaj yeem ua kom lub ntsej muag tshem tawm, yog li txo qhov zawv zawg qhov muaj peev xwm thiab cov kabmob muaj peev xwm ntawm cov kabmob phau ntawv xov xwm. Yog li ntawd, dynamic siab ntawm zawv zawg bearings yog ncaj qha proportional rau lub khiav ceev ntawm phau ntawv journal, thiab lub dynamic siab nyhuv yog inversely proportional rau lub eccentricity, uas sums txog cov tej yam kev mob rau cov kua kev sib txhuam ntawm zawv zawg bearings: ua ntej, lub wedge. - zoo li clearance thiab txaus khiav ceev; Thib ob, txaus nruam lubricating roj; Thib peb, coaxiality ntawm phau ntawv xov xwm bearings.
2. Cov qauv thiab cov khoom siv ntawm zawv zawg bearing
Cov qauv ntawm hydrodynamic zawv zawg kabmob ntawm lub mine hoist lub cev muaj zog tau muab faib ua ob hom, ib qho yog ib hom thiab lwm qhov yog cais hom. Cov khoom siv bearing kuj tau muab faib ua ob pawg, ib qho yog tin-based babbitt alloy, thiab lwm yam yog txhuas-raws li babbitt alloy. Ob cov ntaub ntawv no muaj qhov zoo ntawm kev sib txhuam coefficient tsawg thiab tuaj yeem ua rau kom cov adsorption ntawm cov roj lubricating, yog li txo cov kev sib txhuam ntawm cov bearings thiab txhim kho lub peev xwm hnyav ntawm hoist motors.
3. Kev saib xyuas ntawm zawv zawg bearings ntawm cov mine hoist loj
3.1 Kev tu cov txheej txheem ntawm zawv zawg bearing ntawm cov mine hoist loj
Raws li kev xyaum, cov txheej txheem txij nkawm ntawm zawv zawg bearing ntawm lub mine hoist loj feem ntau suav nrog xya yam hauv qab no: ua ntej, hla yuav raug tshem tawm thaum lub sijhawm, thiab tom qab ntawd lub zog ntawm lub nruas thiab lub cev muaj zog yuav raug kaw. thiab txiav tawm, thiab tom qab ntawd qhov sib txawv ntawm lub cev muaj zog rotor thiab stator yuav raug ntsuas; Thib ob, tshem tawm lub plhaub coupling thiab ntsuas nws qhov kawg tshem tawm; Thirdly, tshem tawm lub cev muaj zog stator plhaub thiab nplawm nplhaib, lub cev muaj zog bearing npog, roj pipeline thiab bearing sab sauv bearing hav txwv yeem, thiab ces ntsuas cov kabmob clearance thiab ncej theem; Thib plaub, siv cov khoom sib nqus los kuaj xyuas qhov hnav ntawm lub ntsej muag ncig ntawm lub rooj zaum, thiab tom qab ntawd nrog nws raws li cov txiaj ntsig; Thib tsib, tshem tawm cov kabmob hav txwv yeem, xyuas nws qhov hnav thiab kho, thiab tom qab ntawd ntxuav lub rooj zaum bearing; Thib rau, teeb tsa cov kabmob qis qis thiab lub cev muaj zog rotor nyob rau hauv qhov chaw raws li cov lus qhia tshwj xeeb, thiab tom qab ntawd ntsuas seb cov ncej theem ua tau raws li tus qauv. Tom qab ncav cuag tus qauv, teeb tsa cov kabmob sab saud thiab ntsuas seb qhov kev ncua deb ntawm cov kabmob sab saud thiab sab qis puas tsim nyog. Yog tsis yog, kho nws; Thib xya, rov pib dua thiab nruab cov khoom siv hoist tshem tawm hauv qhov kev saib xyuas saum toj no ib qho los ntawm ib qho, rov qab kho lub tshuab hoisting tib lub sijhawm, thiab thaum kawg ua haujlwm ua haujlwm kom ntseeg tau tias nws ua haujlwm li qub.
3.2 Kev saib xyuas ntawm zawv zawg bearing hauv kev ua haujlwm
3.2.1 Kev ntsuas kub
Qhov teeb meem tshwm sim ntawm cov kabmob khiav yog tias qhov kev tshem tawm ntawm cov kabmob zawv zawg tau txo qis vim qhov kub thiab txias, uas tsis haum rau kev ua haujlwm ntawm cov kabmob zawv zawg. Lub sijhawm no, cov cua sov ua haujlwm tau ntxiv ntawm qhov ntsuas kub ntsuas qhov ntawm zawv zawg bearings, thiab thermal kuj yog siv los xyuas qhov kub hauv online ntawm zawv zawg bearings. Yog tias qhov kub thiab txias siab dhau lawm, lub thermal kuj yuav cia li xa cov tswb muaj nuj nqi, uas yuav cuam tshuam rau lub ntsiab interface los ntawm tus txheej txheem interface ntawm lub PC kom nco ntsoov lub sij hawm nrhiav tau ntawm qhov txhaum nrog siab bearing kub, txo bearing tsis ua hauj lwm los ntawm loj sib tsoo thiab tuav.
3.2.2 Kev kuaj xyuas kev vibration
Lub amplitude ntau dhau ntawm cov zawv zawg kabmob ncaj qha cuam tshuam rau kev tshem tawm ntawm cov kabmob zawv zawg thiab tev ntawm cov kabmob alloy khoom, ua rau kev ua haujlwm tsis ua haujlwm. Nyob rau lub sijhawm no, qhov hloov pauv hom sensor yog siv los txheeb xyuas qhov amplitude online ntawm cov kabmob zawv zawg, thiab lub tshuab PC txheem tau nruab rau ntawm lub rooj zaum ntawm cov kabmob zawv zawg, uas tuaj yeem tuaj yeem ceeb toom cov kabmob, nco ntsoov kho lub sijhawm. amplitude txhaum, thiab txo qhov muaj peev xwm ntawm bearing bearing tev tawm.
3.2.3 Periodic ferrographic tsom xam
Ferrographic tsom xam tuaj yeem kuaj xyuas cov qib ntawm cov roj lubricating thiab cov khib nyiab sib txhuam tsim los ntawm kev sib txhuam ntawm cov kabmob, thiab txiav txim siab qhov loj, cov duab thiab muaj pes tsawg leeg ntawm kev sib txhuam cov khib nyiab, uas cuam tshuam ncaj qha rau kev ua haujlwm ntawm cov khoom siv bearing, tshwj xeeb tshaj yog cov lubrication tsis zoo yuav muaj kev cuam tshuam ntau dua. ntawm babbitt alloy. Feem ntau, qhov hnav degree ntawm zawv zawg kabmob tuaj yeem kuaj pom los ntawm kev tshuaj xyuas ferrography. Thaum cov pob xiav lossis liab tshwm, nws qhia tau hais tias lub lubrication tsis txaus thiab kev sib txhuam yog qhov hnyav, uas yuav ua rau nco txog kev saib xyuas qib ntawm cov kabmob.
3.3 Kho cov ntsiab lus ntawm zawv zawg bearing
Ua ntej, kev ncaj ncees ntawm cov khoom siv bearing kev ua tau zoo, kev sib txhuam qib ntawm cov hlau thiab qhov ua tau zoo ntawm cov hlau, thiab qhov loj ntawm kev saib xyuas cov kabmob clearance; Qhov thib ob, qhov tseeb kev sib cuag txoj hauj lwm thiab lub kaum sab xis ntawm cov ntawv xov xwm thiab cov kabmob thaum lub sijhawm ua haujlwm; Thib peb, qhov sib piv thiab qhov zoo ntawm cov kabmob sab nrauv; Plaub, hnav tus nqi, hnav roundness, hnav nto thickness thiab hnav cylindricity ntawm cov kabmob; Thib tsib, qhov tawg thiab tev ntawm bearing alloy thiab bearing plhaub, thiab kev sib xyaw ua ke ntawm alloy thiab bearing plhaub; Thib rau, tom qab txhim kho cov kabmob qis qis, xyuas kom meej tias lub rotor ntawm lub cev muaj zog nyob rau hauv qhov chaw, ntsuas cov kab rov tav nrug ntawm cov kabmob, thiab kho qhov tshem tawm ntawm cov kabmob hav txwv yeem; Thib xya, rov pib dua ntawm cov khoom siv hoist tshem tawm, thiab kev ua haujlwm thiab kev ua haujlwm ntawm qhov rov qab hoist system.
3.4 Kev saib xyuas ntawm cov kabmob alloy thiab cov kabmob plhaub
Ua ntej, khob txoj kev: khob lub plhaub bearing, thiab txheeb xyuas lub tev ntawm lub plhaub raws li lub suab khob. Yog hais tias lub khob suab yog meej thiab huv si, nws txhais tau hais tias lub plhaub tsis tev. Yog tias muaj lub suab nrov nrov lossis pom tseeb, nws txhais tau tias lub plhaub ntawm lub plhaub tau hnav thiab muaj peev xwm ntawm tev; Thib ob, cov txheej txheem roj immersion: siv cov hmoov rau ntawm qhov sib koom ntawm cov kabmob ntawm cov kabmob thiab cov kabmob, tsau cov kabmob nrog cov roj av, tshem tawm txhua ib nrab ib teev, thiab saib seb cov hmoov puas muaj cov kab ntub dej ntawm cov roj av immersion, uas yog ib qho tseem ceeb ntawm cov hmoov txhuv nplej siab. ceeb toom ntawm kev sib xyaw ua ke tsis zoo; Thib peb, penetrant flaw detection method: flaw detection agent yog ib hom kev kuaj xyuas tus neeg saib xyuas muaj li ntawm tus neeg saib xyuas, penetrant thiab zaub tus neeg saib xyuas. Ua ntej, qhuav cov kabmob nrog tus neeg saib xyuas, tshuaj tsuag cov nkag mus rau hauv cov kabmob, thiab tshuaj tsuag tus neeg saib xyuas tom qab ib nrab teev so. Yog tias cov xim ntawm tus neeg saib xyuas hloov pauv ntawm qhov sib txuas ntawm cov kabmob thiab cov kabmob, nws txhais tau hais tias qhov tev tawm tsis zoo.
3.5 Scraping kho ntawm zawv zawg bearing
Los ntawm kev soj ntsuam saum toj no, lub tev ntawm cov kabmob alloy thiab cov kabmob plhaub yog qhov qub, thiab tsis muaj qhov tsis zoo ntawm cov kabmob loj. Kev ua haujlwm ntawm zawv zawg kabmob tuaj yeem lav tau los ntawm kev khawb thiab kho; Ua ntej, xaiv cov cuab yeej scraping: xaiv daim duab peb sab scraping los yog snakehead scraping hniav, uas tuaj yeem ntub cov roj pob zeb los kho qhov khawb qhov chaw; Thib ob, cov ntaub ntawv pabcuam: cov neeg saib xyuas yog cov khoom siv feem ntau siv, uas tuaj yeem pom qhov kev sib cuag ntawm qhov chaw khawb thiab qhov sib tsoo. Vim tias cov khoom sib xyaw ntawm cov neeg saib xyuas yog cov hmoov lead hmoov liab thiab cov roj cav, nws tuaj yeem hnov mob rau qhov chaw sib cuag thiab txiav txim siab qhov xwm txheej los ntawm lub teeb nyem ntawm qhov sib tsoo; Thib peb, cov kauj ruam scraping ntawm zawv zawg bearing: ua ntej, ntxhib scraping, scraping nto nrog rau qhov ntev ntawm cov hniav kab los txhim kho lub scraping contact point. Tom ntej no yog zoo scraping. Lub kaum sab xis ua hauj lwm ntawm lub scraper yog me dua li ntawm coarse scraping. Txo cov hniav kab kom nqaim qhov khawb qhov taw tes thiab ua raws li cov kev taw qhia scraping. Ntxiv dua thiab, zoo scraping. Qhov kev txo qis ntxiv ntawm lub kaum sab xis ua haujlwm txhim kho qhov tseeb ntawm kev sib tsoo thiab ua kom cov hniav ntuag, khawb tawm qhov ci ntawm qhov sib tsoo, tawm hauv lub teeb thiab me me sib tsoo cov ntsiab lus; Plaub, qhov zoo ntawm scraping bearing: cov ntaub ntawv tseem ceeb ntawm cov khoom siv scraping zoo suav nrog cov naj npawb ntawm cov ntsiab lus sib cuag, lub kaum sab xis sib cuag, sab saum toj tshem tawm ntawm phau ntawv xov xwm bearing ncoo, thiab lwm yam. ntawm qhov chaw ua hauj lwm ntawm cov kabmob pad. Tsis tas li ntawd, qhov ntau ntawm lub kaum sab xis yog compressed rau 90 degrees mus rau 120 degrees, uas tuaj yeem txhim kho qhov kev tshem tawm ntawm cov kabmob thiab txhim kho lub lubrication ntawm zawv zawg bearings.
4. Cov lus xaus
Nyob rau hauv ib lo lus, kev saib xyuas ntawm zawv zawg bearings ntawm mine loj hoist lub cev muaj zog yog kev ua haujlwm txhua hnub ntawm cov thee mine ntau lawm. Cov zawv zawg kabmob yog ib qho tseem ceeb ntawm lub hoist motor. Muab lub tshuab ua haujlwm ntawm lub kaw lus, daws cov teeb meem tshwm sim ntawm zawv zawg kabmob, thiab txhim kho daim ntawv thov tus nqi ntawm zawv zawg kabmob.
Xav paub ntxiv txog Cov ntaub ntawv qhia tshwj xeeb-MG-6:
Cov ntaub ntawv qhia tshwj xeeb - MG -6 yog Pob thiab cov menyuam bearing steel raws li EN ISO 683-17. Pob thiab cov menyuam bearing steel rau cov khoom thiab cov menyuam ntawm txhua qhov ntev, cov nplhaib thiab cov discs txog li 30 hli zoo tuab.
