A thauj khoom ntawm tesyog qhov tseeb yog ib lub cuab yeej uas hloov cov teeb liab loj mus rau hauv qhov tso zis hluav taws xob ntsuas tau. Thaum siv athauj khoom ntawm tes, qhov chaw ua haujlwm tiag tiag ntawmthauj khoom ntawm tes yuav tsum xav txog ua ntej, uas yog qhov tseem ceeb rau kev xaiv qhov zoo ntawmthauj khoom ntawm tesNws muaj feem cuam tshuam nrog seb qhovthauj khoom ntawm tes tuaj yeem ua haujlwm li qub, nws txoj kev nyab xeeb thiab lub neej ua haujlwm, thiab txawm tias qhov kev ntseeg tau thiab kev nyab xeeb ntawm tag nrho cov cuab yeej ntsuas qhov hnyav.
Qhov cuam tshuam ntawm ib puag ncig rauthauj khoom ntawm tes feem ntau suav nrog cov hauv qab no:
(1) Qhov chaw kub siab ua rau muaj teeb meem xws li yaj ntawm cov ntaub ntawv txheej, qhib vuam ntawm cov pob qij txha solder, thiab kev hloov pauv ntawm cov qauv hauv kev ntxhov siab sab hauv ntawm elastomer. Rauthauj khoom ntawm tess ua haujlwm nyob rau hauv qhov chaw kub siab, kub siabthauj khoom ntawm tess feem ntau siv; ntxiv rau, yuav tsum ntxiv cov khoom siv xws li kev rwb thaiv tshav kub, dej txias lossis cua txias.
(2) Qhov cuam tshuam ntawm cov hmoov av thiab cov av noo rau ntawm qhov luv luv ntawm lub voj voogthauj khoom ntawm tesNyob rau hauv qhov xwm txheej ib puag ncig no, ib qhothauj khoom ntawm tes nrog siabcua-nruj yuav tsum tau xaiv. Txawvthauj khoom ntawm tess muaj ntau txoj kev sib khi sib txawv, thiab lawvcua-nruj txawv heev.
Cov foob feem ntau suav nrog kev txhaws lossis txheej sealant; cov roj hmab pads raug mechanically fastened thiab kaw; vuam (argon arc vuam, plasma beam vuam) thiab nqus tsev nitrogen filling seals.
Los ntawm qhov kev xav ntawm cov nyhuv sealing, vuam sealing yog qhov zoo tshaj plaws, thiab sau thiab txheej sealant yog qhov tsis zoo tshaj plaws. Rauthauj khoom ntawm tess uas ua haujlwm nyob rau hauv ib puag ncig huv si thiab qhuav sab hauv tsev, koj tuaj yeem xaiv ib qho kua nplaum-kawthauj khoom ntawm tes, thiab rau qee yamthauj khoom ntawm tess uas ua haujlwm nyob rau hauv ib puag ncig noo noo thiab plua plav, koj yuav tsum xaiv lub diaphragm cua sov foob lossis diaphragm vuam foob, pumping Vacuum nitrogen puvthauj khoom ntawm tes.
(3) Nyob rau hauv ib puag ncig corrosive heev, xws li noo noo thiab acidity, uas yuav ua rau puas tsuaj rau elastomer lossis ua rau luv luv Circuit Court, qhov chaw sab nraud yuav tsum tau oversprayed lossis yuav tsum taunpog nrogstainless hlau, uas muaj kev tiv thaiv corrosion zoo thiab zookev nruj ntawm huab cua.
(4) Kev cuam tshuam ntawm lub zog hluav taws xob electromagnetic rauload cell cov teeb liab tso zis tsis zoo. Hauv qhov no, kev tiv thaiv ntawmload cell yuav tsum tau kuaj xyuas kom meej tias nws puas muaj kev tiv thaiv hluav taws xob zoo.
(5) Cov khoom tawg thiab tawg tsis yog tsuas yog ua rau puas tsuaj tag nrho rauthauj khoom ntawm tes, tab sis kuj ua rau muaj kev hem thawj loj rau lwm yam khoom siv thiab kev nyab xeeb ntawm tus kheej. Yog li ntawd,thauj khoom ntawm tess ua haujlwm nyob rau hauv cov chaw kub hnyiab thiab tawg tau muab tso rau pem hauv ntej cov kev cai siab dua rau kev ua haujlwm tawg-pov thawj: tawg-pov thawjthauj khoom ntawm tess yuav tsum tau xaiv nyob rau hauv cov chaw kub hnyiab thiab tawg. Lub hau kaw ntawm qhov nothauj khoom ntawm tes yuav tsum tsis txhob tsuas yog xav txog nws xwbkev nruj ntawm huab cua, tab sis kuj yuav tsum xav txog lub zog tiv thaiv kev tawg, nrog rau cov khoom tiv thaiv dej, tiv thaiv dej noo thiab tiv thaiv kev tawg ntawm cov xov hlau.
Qhov thib ob, kev xaiv ntawm tus lej thiab ntau yam ntawm covthauj khoom ntawm tess.
Kev xaiv ntawm tus lej ntawm covthauj khoom ntawm tess yog txiav txim siab raws li lub hom phiaj ntawm lub cuab yeej ntsuas hluav taws xob thiab tus lej ntawm cov ntsiab lus uas lub cev ntsuas xav tau los txhawb (tus lej ntawm cov ntsiab lus txhawb nqa yuav tsum tau txiav txim siab raws li lub hauv paus ntsiab lus ntawm kev ua kom lub hauv paus geometric ntawm lub cev ntsuas sib phim nrog lub hauv paus tiag tiag ntawm lub ntiajteb txawj nqus). Feem ntau hais lus, ntauthauj khoom ntawm tess yog siv rau lub cev nplai nrog ntau qhov chaw txhawb nqa. Txawm li cas los xij, rau qee lub cev nplai tshwj xeeb xws li cov nplai hluav taws xob hook, tsuas yog ib qho xwbthauj khoom ntawm tes siv tau. Rau qee qhovelectromagnetically cov nplai sib xyaw ua ke, kev xaiv ntawmthauj khoom ntawm tes yuav tsum tau txiav txim siab raws li qhov xwm txheej tiag tiag. tus lej.
Qhov kev xaiv ntawmthauj khoom ntawm tes qhov ntau yam tuaj yeem txiav txim siab raws li kev ntsuam xyuas ntawm cov yam xws li qhov siab tshaj plaws ntawm qhov ntsuas, tus lej ntawm cov xaivthauj khoom ntawm tess, qhov hnyav ntawm lub cev nplai, qhov ua tau siab tshaj plaws ntawm eccentric load thiab dynamic load. Feem ntau, qhov ze dua ntawm qhov ntau ntawmthauj khoom ntawm tes yog rau lub nra hnyav uas tau muab rau txhua tusthauj khoom ntawm tes, qhov tseeb dua nws qhov kev hnyav yuav yog. Txawm li cas los xij, thaum siv tiag tiag, txij li thaum lub nra hnyav tau siv rauthauj khoom ntawm tes suav nrog qhov hnyav ntawm tus kheej, qhov hnyav tare, qhov hnyav eccentric thiab kev co ntawm lub nplai ntxiv rau qhov khoom uas yuav tsum tau hnyav, ntau yam yuav tsum tau xav txog thaum xaiv qhovthauj khoom ntawm tes ntau yam kom paub tseeb tiasthauj khoom ntawm tes kev nyab xeeb thiab lub neej ntev.
Cov qauv xam ntawmthauj khoom ntawm tes qhov ntau yam yog txiav txim siab los ntawm ntau qhov kev sim tom qab xav txog ntau yam tseem ceeb uas cuam tshuam rau lub cev nplai.
Cov mis yog raws li nram no:
C=K-0K-1K-2K-3(Wmax+W)/N
C—rated range ntawm ib qhothauj khoom ntawm tes; W—qhov hnyav ntawm lub cev nplai; Wmax—tus nqi siab tshaj plaws ntawm qhov hnyav tag nrho ntawm yam khoom uas raug ntsuas; N—tus naj npawb ntawm cov ntsiab lus txhawb nqa uas lub cev ntsuas siv; K-0—tus nqi pov hwm, feem ntau ntawm 1.2 thiab 1.3; K-1—qhov cuam tshuam coefficient; K-2—qhov coefficient ntawm qhov chaw ntawm lub ntiajteb txawj nqus ntawm lub cev nplai; K-3—coefficient ntawm cua siab.
Piv txwv li: lub tshuab ntsuas hluav taws xob 30t, qhov hnyav siab tshaj plaws yog 30t, qhov hnyav ntawm lub tshuab ntsuas yog 1.9t, siv plaubthauj khoom ntawm tess, raws li qhov xwm txheej tiag tiag ntawm lub sijhawm ntawd, xaiv qhov kev pov hwm K-0 = 1.25, qhov cuam tshuam K-1 = 1.18, Qhov chaw ntawm lub ntiajteb txawj nqus offset coefficient K-2—= 1.03, qhov coefficient ntawm cua K-3 = 1.02, sim txiav txim siab qhov tonnage ntawmthauj khoom ntawm tes.
Kev daws teeb meem: Xam cov mis raws li tus qauvthauj khoom ntawm tes ntau yam:
C=K-0K-1K-2K-3(Wmax+W)/N
Nws paub tias:
C=1.25×1.18×1.03×1.02×(30+1.9)/4
=12.36t
Yog li ntawd, ibthauj khoom ntawm tes nrog rau ntau yam ntawm 15t tuaj yeem xaiv (lub tonnage ntawmthauj khoom ntawm tes feem ntau tsuas yog 10T, 15T, 20t, 25t, 30t, 40t, 50t, thiab lwm yam, tshwj tsis yog tias nws tau xaj tshwj xeeb).
Raws li kev paub dhau los, covthauj khoom ntawm tes feem ntau yuav tsum ua haujlwm hauv 30% txog 70% ntawm nws qhov ntau, tab sis rau qee cov cuab yeej ntsuas qhov hnyav nrog lub zog loj thaum siv, xws li cov nplai tsheb ciav hlau dynamic, cov nplai tsheb thauj khoom dynamic, cov nplai hlau, thiab lwm yam, thaum xaivthauj khoom ntawm tess, Feem ntau, nws yog qhov tsim nyog los nthuav nws cov ntau yam, yog li ntawdthauj khoom ntawm tes ua haujlwm nyob rau hauv 20% txog 30% ntawm nws qhov ntau, yog li ntawd qhov hnyav cia ntawmthauj khoom ntawm tes tau nce ntxiv kom ntseeg tau tias muaj kev nyab xeeb thiab lub neej ntawmthauj khoom ntawm tes.
Dua li, xav txog qhov siv tau ntawm txhua hom kev sivthauj khoom ntawm tes.
Qhov kev xaiv ntawmthauj khoom ntawm tes hom feem ntau nyob ntawm hom kev ntsuas thiab qhov chaw teeb tsa kom ntseeg tau tias kev teeb tsa zoo thiab kev ntsuas kev nyab xeeb thiab txhim khu kev qha; ntawm qhov tod tes, yuav tsum xav txog cov lus pom zoo ntawm cov chaw tsim khoom. Cov chaw tsim khoom feem ntau teev cov qib ntawm daim ntawv thov ntawmthauj khoom ntawm tes raws li lub zog ntawmthauj khoom ntawm tes, cov ntsuas kev ua tau zoo, daim ntawv teeb tsa, hom qauv, thiab cov khoom siv elastomer. Piv txwv li, txhuas cantilever beamthauj khoom ntawm tess yog tsim rau kev ntsuas tus nqi, cov nplai platform, cov nplai rooj plaub, thiab lwm yam; hlau Cantilever beamthauj khoom ntawm tess yog tsim rau cov nplai hopper, cov nplai siv hluav taws xob, cov nplai cais, thiab lwm yam; choj hlauthauj khoom ntawm tess yog tsim rau kev ntsuas tsheb ciav hlau, kev ntsuas tsheb thauj khoom, kev ntsuas crane, thiab lwm yam; kemthauj khoom ntawm tess yog tsim rau cov nplai tsheb thauj khoom, cov nplai tsheb ciav hlau dynamic, thiab cov nplai hopper loj. Tos.
Thaum kawg, muaj kev xaiv ntawmthauj khoom ntawm tes chav kawm raug.
Qib ntawm qhov tseeb ntawmthauj khoom ntawm tes suav nrog cov ntsuas kev ua haujlwm xws lithauj khoom ntawm tes's nonlinearity, creep, creep rov qab, hysteresis, repeatability, thiab rhiab heev. Thaum xaivthauj khoom ntawm tess, tsis txhob tsuas yog nrhiav kev kawm siab xwbthauj khoom ntawm tess, tab sis xav txog qhov ua tau raws li qhov yuav tsum tau ua ntawm cov nplai hluav taws xob thiab lawv tus nqi.
Qhov kev xaiv ntawmthauj khoom ntawm tes chav kawm yuav tsum ua tau raws li ob qho xwm txheej hauv qab no:
1. Ua tau raws li qhov yuav tsum tau ua ntawm cov cuab yeej nkag. Cov cuab yeej ntsuas qhov hnyav qhia cov txiaj ntsig ntawm qhov hnyav tom qab ua tiav cov teeb liab tso zis ntawmthauj khoom ntawm tes los ntawm kev ua kom nrov dua thiab kev hloov pauv A / D. Yog li ntawd, cov teeb liab tso zis ntawmthauj khoom ntawm tes yuav tsum loj dua lossis sib npaug rau qhov loj ntawm lub teeb liab uas lub 'meter' xav tau, uas yog, qhov rhiab heev ntawm qhov tso zisthauj khoom ntawm tes yog hloov los ntawm cov qauv sib phim ntawmthauj khoom ntawm tes thiab lub 'meter', thiab qhov tshwm sim ntawm kev xam yuav tsum loj dua lossis sib npaug rau qhov rhiab heev ntawm lub 'meter' uas xav tau.
Cov qauv sib phim ntawmthauj khoom ntawm tes thiab lub 'meter':
Llub hlwb oad qhov tso zis rhiab heev * lub zog fais fab mov hluav taws xob * qhov hnyav siab tshaj plaws ntawm qhov ntsuas
Tus naj npawb ntawm cov kev faib ntawm qhov ntsuas * tus naj npawb ntawmthauj khoom ntawm tess * qhov ntau ntawmthauj khoom ntawm tes
Piv txwv li: lub nplai ntim khoom ntau npaum li cas uas hnyav 25kg, tus naj npawb siab tshaj plaws ntawm kev faib yog 1000. Tlub cev ntsuas tau txais 3 hom L-BE-25thauj khoom ntawm tess, qhov ntau yog 25kg, qhov rhiab heev yog 2.0±0.008mV/V, lub arch choj voltage siab 12V. Tlub nplai siv lub 'meter' AD4325. Nug seb puas yogthauj khoom ntawm tes siv tau phim lub 'meter'.
Kev daws teeb meem: Tom qab sab laj, qhov rhiab heev ntawm AD4325 'meter' yog 0.6μV/d, yog li ntawd raws li cov qauv sib phim ntawmthauj khoom ntawm tes thiab lub 'meter', lub teeb liab nkag tiag tiag ntawm lub 'meter' tuaj yeem tau txais raws li:
2×12×25/1000×3×25 = 8μV/hnub>0.6μhnub/hnub
Yog li ntawd, qhovthauj khoom ntawm tes siv ua tau raws li qhov yuav tsum tau ua ntawm qhov rhiab heev ntawm cov cuab yeej thiab tuaj yeem phim cov cuab yeej xaiv.
2. Ua tau raws li qhov yuav tsum tau ua ntawm tag nrho cov nplai hluav taws xob. Lub nplai hluav taws xob feem ntau yog tsim los ntawm peb ntu: lub cev nplai,thauj khoom ntawm tes thiab cov cuab yeej. Thaum xaiv qhov tseeb ntawmthauj khoom ntawm tes, qhov tseeb ntawmthauj khoom ntawm tes yuav tsum siab dua me ntsis ntawm tus nqi xam theoretical, vim tias qhov kev xav feem ntau raug txwv los ntawm cov xwm txheej lub hom phiaj, xws li cov nplai. Lub zog ntawm lub cev yog qhov phem me ntsis, qhov kev ua tau zoo ntawm cov cuab yeej tsis zoo heev, qhov chaw ua haujlwm ntawm qhov nplai tsis zoo thiab lwm yam ncaj qhacuam tshuam rau cov kev cai kom raugntawm qhov ntsuas.
Lub sijhawm tshaj tawm: Lub Yim Hli-11-2022