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Thaum lub capillary centrifuge txias, lub iav qis tsis tuaj yeem pib: cov roj lubricating ntawm lub centrifuge solidifies lossis cov roj lubricating deteriorates thiab dries thiab sticks.

Sijhawm: 2022-01-24 Ntaus: 70

Thaum lub capillary centrifuge txias, lub iav qis tsis tuaj yeem pib: cov roj lubricating ntawm lub centrifuge solidifies lossis cov roj lubricating deteriorates thiab dries thiab sticks. Thaum pib, lub centrifuge tuaj yeem tig rov qab nrog kev pab ntawm tes lossis cov roj tuaj yeem rov ua dua tom qab ntxuav. Centrifuge vibration, suab nrov, tsis ua hauj lwm: xyuas seb lub centrifuge tsis sib npaug, xoob ceev los kho lub tshuab. Yog tias muaj, nruj nws. Xyuas seb cov kabmob centrifuge puas puas lossis khoov. Yog tias muaj, hloov cov kabmob.  

Txheeb xyuas qhov deformation lossis qhov tsis raug ntawm lub hau npog sab nraud ntawm capillary centrifuge, thiab kho nws yog tias muaj. Kev co excitation ntawm centrifuge system yog: lub cev muaj zog tsav system, npo pob tawb thiab machining yuam kev, bearing thiab bracket, sib dhos ntawm unbalanced ncej, tsim ntawm tawg nyob rau hauv vitro, dej nyob rau hauv tawg chamber, teeb meem tshwm sim los ntawm kub kub txhaum, loj nyob rau hauv siab centrifugal, high-speed rotating ncej qaij, kev vibration, thaum lub vibration zaus tshaj qhov txwv, nws yuav ua rau lub centrifuge resonance ntawm tag nrho cov system, ua rau loj tom qab yog li ntawd, txawm nws yog centrifuge los yog lwm yam centrifuges nyob rau hauv daim ntawv thov txheej txheem, peb yuav tsum tau them. mloog mus rau kev co ntawm centrifuge, vim hais tias nws muaj kev cuam tshuam zoo rau kev siv ib txwm thiab kev nyab xeeb ntawm capillary centrifuges.

Nyob rau hauv ib ncig uas tsis yog inertial system, lub inertial quab yuam ntawm capillary centrifuge yog ib txwm sab nraud, thiab tsis muaj qhov sib thooj zog sab hauv. Txhawm rau kom cov khoom nyob ruaj khov nyob rau hauv qhov tsis muaj inertial system, yuav tsum muaj lwm lub zog los tiv thaiv lub zog inertial, xws li lub zog rub ntawm txoj hlua, lub zog txhawb nqa ntawm phab ntsa sab nrauv, thiab lub ntiajteb txawj nqus ntawm cov khoom loj. Qhov tseeb, nyob rau hauv tag nrho cov uas tsis yog inertial systems, ib tug inertial quab yuam yuav raug tsim raws li lub hauv paus ntsiab lus ntawm equivalence. Nws cov kev taw qhia yog rov qab mus rau qhov acceleration nyob rau hauv lub non inertial ncej (kwv yees rau lub acceleration ntawm lub inertial system), thiab qhov loj yog lub acceleration lub sij hawm lub loj ntawm cov khoom. Nyob rau hauv txoj kev no, nws yog qhov yooj yim los daws qhov sib npaug ntawm qhov tsis muaj inertial thav duab, es tsis yog leej twg tau tawm dag zog zoo li no.  

Vim tias qhov nrawm nrawm ntawm capillary centrifuge, lub rotor tsis kho los ntawm cov kabmob zoo tib yam, tab sis los ntawm cov kabmob sib nqus. Sib nqus bearings siv magnetic teb kom lub rotor ib txwm nyob hauv nruab nrab ntawm stator coil. Tsis muaj kev sib cuag ntawm lub cev ntawm lub rotor thiab stator, uas tshem tawm kev sib txhuam, thiab tom qab ntawd ua kom muaj kev ruaj ntseg ntawm ultra-siab ceev ua haujlwm ntawm capillary centrifuge.  

Yog vim li cas vim li cas capillary centrifuge vibrates nyob rau hauv cov txheej txheem ntawm acceleration thiab deceleration yog tias ntxiv rau resonance, kuv xav tias qhov kev hloov ntawm qhov chaw ntawm lub ntiajteb txawj nqus thaum lub sij hawm acceleration thiab deceleration kuj yog ib yam, uas tej zaum yuav muaj feem xyuam rau resonance. Thaum lub vibration zaus nyob ze rau lub ntuj zaus ntawm cov khoom, resonance yuav tshwm sim. Raws li kev vibration txoj kev xav, ib qho khoom siv tiag tiag muaj suav tsis txheeb lub ntuj frequencies. Thaum lub sij hawm excitation sab nraud thiab cov khoom lub ntuj zaus nyob ze rau ib leeg Thaum lub ntuj zaus yog tib yam, lub resonance phenomenon yuav tshwm sim. Lub sijhawm no, qhov amplitude ntawm kev co yog qhov tshwj xeeb loj (amplitude), uas feem ntau yog teeb meem. Raws li rau qhov ntsuas qhov teeb meem, nws yog ib qho teeb meem dynamic tshuav, vim hais tias qhov nruab nrab ntawm qhov loj ntawm cov khoom tsis coincide nrog qhov chaw ntawm kev sib hloov, ua rau eccentricity, uas kuj induces kev co, thiab belongs rau qeb ntawm kev vibration txoj kev xav. Kuv xav tias qhov tshwm sim saum toj no yog tshwm sim los ntawm resonance. Ntawm chav kawm, tej zaum yuav tsis muaj trim.

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