Coal sizer crusher, tseem hu ua cov menyuam crusher, feem ntau yog siv los tsoo cov ntaub ntawv los ntawm ob lub rollers. Txhua tus menyuam yog tsav los ntawm ib lub cev muaj zog, thiab lub cev muaj zog tsav txoj hlua rub thaum ua haujlwm, yog li ob lub rollers ua qhov sib txawv. Lub sijhawm no, cov khoom siv tau ntxiv los ntawm qhov chaw noj mov ntawm ob lub rollers, thiab cov khoom siv tau qhia ntawm ob lub rollers los ntawm kev sib txhuam quab yuam thiab cov hniav ntawm cov menyuam, uas yog crushed thiab tawm. Coal sizer crusher feem ntau yog siv rau nruab nrab thiab nplua crushing ua haujlwm ntawm nruab nrab -hardness ores. Cov hniav yob ntawm crusher raug cuam tshuam los ntawm kev siv zog xws li cov khoom cuam tshuam thiab qhov hnyav tuag hauv kev siv, yog li nws yooj yim rau hnav. Kev hnav ntawm cov hniav yob yuav tsis tsuas yog cuam tshuam rau kev ua haujlwm ntawm kev ua haujlwm, tab sis kuj ua rau muaj kev puas tsuaj rau lub crusher nws tus kheej. Thaum lub sij hawm ua thiab kev tsim khoom, qhov sib piv ntawm cov menyuam cov hniav thiab qhov chaw sib cuag ntawm cov menyuam lub cev yuav tsum ncav cuag ntau dua 90%, uas yog qhov nyuaj. Thaum hnav tshwm sim nrog qhov sib txawv ntawm qhov sib txawv, qhov hnav yuav raug nce ntxiv nyob rau hauv qhov kev yaig tsis tu ncua ntawm cov khoom, kom lub crusher nyob rau hauv ib qho kev nyab xeeb lub xeev. Nyob rau tib lub sij hawm, hnav yuav ua rau yob lub cev raug mob, yob cov hniav tawg, lub zos poob tawm, fastening bolt deformation los yog tawg, nws yog ib qho nyuaj rau disassemble thaum hloov yob cov hniav dua. Nws tuaj yeem pom tias cov hniav ntawm crushing yob yog lub ntsiab yooj yim rau hnav qhov chaw thiab kev noj yog loj. Yog li ntawd, cov khoom siv q345 raug xaiv los ua kom tiav cov ntsiab lus kev ntxhov siab ntawm qee hom crushing yob. Cov khoom siv crushing yog granite, uas nws lub zog compressive yog 100mpa Tsawg dua los yog sib npaug li tsawg dua lossis sib npaug li 250mpa, thiab nws qhov siab tshaj ntawm 250mpa yog siv rau qhov zawj ntawm crushing yob rau kev thauj khoom. Kev xaiv ntawm yob cov hniav nrog zoo hnav tsis kam yog qhov tseem ceeb heev los txhim kho kev ua haujlwm ntawm yob crusher. Cov khoom siv yuav tsum raug xaiv tsim nyog raws li qhov loj ntawm cov hniav yob thiab cov khoom ntawm cov ntaub ntawv yuav tsum tau crushed, thiaj li ua kom muaj kev ua tau zoo thiab muaj peev xwm ntawm ntau yam hnav{19}}cov ntaub ntawv tiv taus, txhim kho lawv lub neej kev pab thiab txo cov khoom siv.
Daim ntawv no feem ntau tham txog kev xaiv cov khoom sivthee sizer crushercov menyuam, thiab ua kom pom qhov tseeb ntawm kev xaiv cov khoom siv los ntawm kev txheeb xyuas qhov tseeb ntawm lub zog. Common low alloy high zog steel yog ib qho kev xaiv hauv kev tsim thiab tsim cov yob breakers. Ordinary low- alloy high- lub zog steel yog ib yam zoo tib yam qis- alloy steel uas muaj me me ntawm cov ntsiab lus alloying (feem ntau tag nrho cov nyiaj tsis ntau tshaj 3%), nws lub zog yog qhov siab, qhov kev ua tau zoo kuj zoo, thiab muaj kev tiv thaiv corrosion, hnav tsis kam, kub tsis kam thiab kev ua haujlwm zoo dua. Raws li qhov xwm txheej ntawm kev txuag ntau yam tsis tshua muaj alloying ntsiab lus (xws li npib tsib xee thiab chromium), feem ntau 1t zoo tib yam qis- alloy steel tuaj yeem siv ntau dua 1.2t txog 1.3t carbon steel, thiab nws lub neej kev pab cuam thiab ntau yam ntawm kev siv yog ntev dua li carbon steel. Table 1 qhia cov tshuaj muaj pes tsawg leeg ntawm cov hlau tsis tshua muaj hlau. Table 2 qhia cov khoom tseem ceeb ntawm crusher yob cov hlau tsis tshua muaj hlau.
Qhov kev pab cuam yog abaqus finite element software. Vim hais tias lub crushing yob qauv yog cam khwb cia tag nrho, nyob rau hauv tus txheej txheem ntawm kev soj ntsuam thiab xam, tag nrho crushing yob raws li cov khoom nruam, uniform tag nrho, uas nws ceev ρ, elastic modulus e thiab poisson tus piv: tib yam, uas yog, thaum cov khoom yog q345 tsawg alloy steel.
Rau qhov finite caij kev nyuaj siab tsom xam ntawm cov thee sizer crusher roller, lub finite element qauv ntawm cov crusher roller yog thawj tsim nyob rau hauv abaqus / cae ib puag ncig. Lub hom phiaj ntawm lub crusher yog c3d4, thiab tus naj npawb ntawm cov ntsiab lus yog 96126 thiab tus naj npawb ntawm cov nodes yog 18661 tom qab kab sib faib. Thaum lub sij hawm ciam teb raug teeb tsa, tag nrho cov kev txwv tshwj tsis yog kev sib hloov ntawm lub hauv paus axis yog siv rau sab hauv lub qhov ntawm cov hniav yob. Thaum lub sij hawm thauj khoom, qhov txwv kev thauj khoom ntawm cov khoom crushed (piv txwv tias qhov saum npoo ntawm cov hniav yog raug rau cov khoom sib faib siab ntawm cov khoom) yog siv rau saum npoo ntawm cov hniav yob, thiab qhov loj yog 250mpa. Tom qab cov kauj ruam saum toj no, qhov kev nyuaj siab thiab kev ntxhov siab hauv cov txheej txheem ua haujlwm ntawm crusher hniav yob yog tau los ntawm kev daws qhov teeb meem nrog abaqus, thiab qhov kev ntxhov siab zoo li qub tau pom nyob rau hauv daim duab 3. Nws tuaj yeem pom los ntawm daim duab 3 tias qhov siab tshaj plaws tus nqi yog 403mpa thaum lub siab tsis sib xws ntawm 250 mpa yog siv rau ntawm qhov chaw ntawm crushing cov menyuam cov hniav, uas yog zoo kawg nkaus limiting tus nqi ntawm 3. Txawm li cas los xij, tus nqi siab tshaj plaws nyob rau hauv thaj tsam me me ntawm lub kaum sab xis ntawm lub vev xaib ntawm sab laug kawg ntawm cov hniav zawj. Xav tias qhov kawg yog qhov tsawg dua yuav tsum tau nyem los ntawm cov ntaub ntawv thaum lub sijhawm ua haujlwm tiag tiag ntawm lub crushing yob, lub xeev muaj peev xwm ntawm yielding hauv cheeb tsam me me no tsis suav nrog. Rau feem ntau ntawm cov crushing yob txoj kev nyuaj siab zawj, qhov kev ntxhov siab tus nqi g Tsawg dua los yog sib npaug rau 300mpa, tsawg tshaj li qhov kev txwv tsis pub muaj nqi ntawm cov khoom q345 steel, piv rau cov khoom muaj qhov seem, cov khoom tsis tshwm sim yas deformation. Feem ntau hais lus, qhov tsis tshua muaj kev ntxhov siab tshwm sim nyob rau hauv qhov chaw uas lub zog me me, qhov kev sib cuag ntawm qhov chaw yog tsawg thiab cov qauv zoo heev. Cov chaw uas muaj kev ntxhov siab ntau dua yog cov concentrated nyob rau hauv qhov chaw uas muaj kev ntxhov siab ntau dua thiab lub hauv paus ntse lub kaum sab xis yog ntau dhau, uas yog raws li qhov xwm txheej tiag tiag thiab muaj kev ntseeg siab.