Yuav ua li cas xaiv lub tshuab ntsuas ntau lub taub hau kom tsim nyog

Tus Sau: Smartweigh– Multihead Weighter

Lub tshuab ntsuas qhov hnyav ntau lub taub hau yog lub cuab yeej hloov pauv hluav taws xob uas tuaj yeem hloov lub zog mus rau hauv cov teeb liab hluav taws xob, thiab yog lub hauv paus tseem ceeb ntawm lub tshuab ntsuas qhov hnyav ntau lub taub hau. Muaj ntau hom sensors uas tuaj yeem ua tiav qhov kev hloov pauv hluav taws xob, feem ntau suav nrog hom kev tiv thaiv kev ntxhov siab, hom kev sib nqus thiab lub sensor capacitive. Qhov tseem ceeb ntawm hom kev sib nqus yog qhov sib npaug ntawm kev tshuaj xyuas hluav taws xob, lub sensor capacitor yog ib feem ntawm lub tshuab ntsuas qhov hnyav ntau lub taub hau, thiab lub tshuab ntsuas qhov hnyav hom kev tiv thaiv kev ntxhov siab feem ntau siv rau hauv feem ntau ntawm cov khoom siv tshuab hnyav.

Lub tshuab ntsuas qhov hnyav ntau lub taub hau tsis kam yog qhov yooj yim hauv cov qauv, siab hauv qhov tseeb, thiab muaj ntau yam kev siv tau, thiab tuaj yeem siv rau hauv qhov chaw ib puag ncig tsis zoo. Yog li ntawd, lub tshuab ntsuas qhov hnyav ntau lub taub hau tsis kam tau txais hauv lub tshuab ntsuas ntau lub taub hau. Lub tshuab ntsuas qhov hnyav ntau lub taub hau tsis kam yog feem ntau yog tsim los ntawm polyurethane elastomer, lub ntsuas qhov hnyav tsis kam thiab lub voj voog them rov qab.

Polyurethane elastomer yog qhov nyuaj ntawm lub tshuab ntsuas ntau lub taub hau, ua los ntawm cov hlau carbon zoo thiab cov txhuas alloy zoo. Lub ntsuas kev tawm tsam yog ua los ntawm cov khoom siv hlau ntawv ci etched rau hauv daim ntawv qhia hom ntaub ntawv, thiab plaub lub ntsuas kev tawm tsam yog nplaum rau polyurethane elastomer los ntawm txoj kev qauv choj. Hauv qhov xwm txheej tsis muaj zog, 4 lub resistors ntawm lub voj voog choj muaj tib tus nqi, lub voj voog choj nyob rau hauv lub xeev sib npaug, thiab cov zis yog xoom.

Thaum lub polyurethane elastomer raug deformed los ntawm lub zog, lub ntsuas kev tawm tsam kuj raug deformed. Thaum lub sijhawm tag nrho cov txheej txheem ntawm polyurethane elastomer raug rau lub zog thiab khoov, ob lub ntsuas kev tawm tsam raug ncab, cov hlau hlau raug ncab, thiab tus nqi tsis kam nce, thiab ob qho ntxiv raug rau lub zog, thiab tus nqi tsis kam txo qis. Ua li no, lub voj voog choj sib npaug thawj zaug tsis sib npaug, thiab muaj qhov sib txawv ntawm qhov hluav taws xob ua haujlwm ntawm ob sab ntawm lub voj voog choj. Qhov sib txawv ntawm qhov hluav taws xob ua haujlwm yog cuam tshuam nrog qhov loj ntawm lub zog ntawm polyurethane elastomer. Tshawb xyuas qhov sib txawv ntawm qhov hluav taws xob ua haujlwm kom tau txais qhov loj ntawm lub zog sensor, qhov hluav taws xob ua haujlwm Tom qab cov ntaub ntawv teeb liab raug kuaj xyuas thiab suav los ntawm lub vaj huam sib luag ntsuas, txhawm rau siv cov chaw ntawm ntau yam qauv multihead weigher zoo dua, lub multihead weigher yog tsim los ntawm ntau yam qauv, thiab lub npe ntawm lub sensor feem ntau kuj hu ua raws li nws cov qauv tsim.

Piv txwv li, lub sensor stacking saw (qhov tseem ceeb ntawm lub tsheb hluav taws xob sib npaug), hom cantilever beam (qhov sib npaug hauv av, qhov ntsuas hauv tsev rau khoom, qhov sib npaug hauv tsheb hluav taws xob), hom kem (qhov sib npaug hauv tsheb hluav taws xob, qhov ntsuas hauv tsev rau khoom), hom tsheb (qhov ntsuas), s-hom (qhov ntsuas hauv tsev rau khoom) thiab lwm yam. Lub tshuab ntsuas ntau lub taub hau feem ntau tuaj yeem teev cov sensors hauv ntau daim ntawv qauv. Yog tias lub sensor raug xaiv kom raug, nws pab txhim kho cov yam ntxwv ntawm lub tshuab ntsuas ntau lub taub hau.

Muaj ntau yam kev qhia tshwj xeeb thiab cov qauv ntawm cov khoom siv ntsuas qhov hnyav ntau lub taub hau, txij li ntau pua grams mus txog ntau pua tons. Thaum xaiv qhov ntsuas ntawm lub tshuab ntsuas ntau lub taub hau, nws yuav tsum tau piav qhia meej raws li qhov loj ntawm lub tshuab ntsuas ntau lub taub hau uas siv ntau. Txoj cai ntawm tus ntiv tes xoo yog raws li nram no: tag nrho cov khoom thauj sensor (qhov siab tshaj plaws uas tso cai rau ntawm cov sensors ib leeg x tus lej ntawm cov sensors) = 1/2 ~ 2/3 ntawm qhov hnyav siab tshaj plaws ntawm lub tshuab ntsuas ntau lub taub hau.

Qib qhov tseeb ntawm lub tshuab ntsuas ntau lub taub hau tau muab faib ua plaub theem: a, b, c, thiab d. Cov qib sib txawv muaj qhov sib txawv ntawm qhov yuam kev. Chav Kawm A sensors tau teev tseg max.

Tus lej tom qab qib sawv cev rau tus nqi txheeb xyuas metrological, cov ntaub ntawv loj dua, qhov zoo dua ntawm lub sensor. Piv txwv li, C2 txhais tau tias qib C, 2000 tus nqi txheeb xyuas metrological C5 txhais tau tias qib C, 5000 tus nqi txheeb xyuas metrological. Nws yog qhov tseeb tias C5 siab dua C2.

Cov qib sensor feem ntau yog C3 thiab C5, thiab ob qib sensor no siv tau los ua cov multihead weighers nrog qib raug ntawm III. Qhov yuam kev ntawm multihead weigher feem ntau yog los ntawm qhov yuam kev ntawm lub kaw lus sib cais, qhov yuam kev lag, qhov yuam kev rov ua dua, kev so kom txaus, qhov yuam kev ntxiv ntawm qhov kub thiab txias xoom thiab qhov yuam kev ntxiv ntawm qhov kub thiab txias tso zis. Cov sensors digital uas tau tshwm sim hauv xyoo tas los no muab lub voj voog hloov pauv A / D thiab lub voj voog fais fab CPU rau hauv lub sensor. Qhov tso zis ntawm lub sensor tsis yog lub teeb liab ua haujlwm analog voltage, tab sis lub teeb liab analog qhov hnyav daws los ntawm kev daws teeb meem, uas muaj cov txiaj ntsig hauv qab no: 1. Vaj Huam Sib Luag Cov teeb liab cov ntaub ntawv ntawm txhua lub sensor digital tuaj yeem sau sib cais, xam raws li kab zauv linear, thiab txhua lub sensor tuaj yeem calibrated ywj pheej, thiab qhov ua tau ntawm kev kho qhov yuam kev ntawm plaub lub ces kaum ib zaug yog siab heev.

Qhov mob taub hau loj tshaj plaws hauv cov tshuab ntsuas ntau lub taub hau siv cov ntsuas digital thiab analog yog qhov kev hloov kho qhov yuam kev plaub-ces kaum, uas feem ntau xav tau ntau qhov kev ntsuas kom qhia meej, txhua zaus txav qhov hnyav txheem, uas siv sijhawm ntau thiab siv zog ntau. 2. Vim tias lub vaj huam sib luag ntsuas tuaj yeem ntes cov ntaub ntawv teeb liab ntawm txhua lub sensor, cov teeb meem ntawm txhua lub sensor tuaj yeem pom los ntawm lub vaj huam sib luag ntsuas, uas yooj yim rau kev saib xyuas. 3. Lub sensor digital xa cov teeb liab analog los ntawm 485 interface, thiab kev sib kis yog qhov deb tsis raug cuam tshuam.

Tshem tawm cov teeb meem nyuaj thiab yooj yim ntawm kev xa cov teeb liab pulse. 4. Ntau yam yuam kev ntawm lub sensor tuaj yeem hloov kho raws li microcontroller hauv lub sensor digital, yog li cov ntaub ntawv tso zis sensor cov ntaub ntawv raug dua. Lub multihead weigher hu ua lub paj hlwb hauv nruab nrab ntawm lub multihead weigher, thiab nws cov yam ntxwv feem ntau txiav txim siab qhov tseeb thiab kev ntseeg tau ntawm lub multihead weigher.

Thaum tsim lub tshuab ntsuas qhov hnyav ntau lub taub hau, cov lus nug txog yuav siv cov sensors li cas feem ntau ntsib. Lub tshuab ntsuas qhov hnyav ntau lub taub hau yog qhov tseeb yog lub cuab yeej uas hloov cov ntaub ntawv zoo mus rau hauv cov teeb liab hluav taws xob uas tuaj yeem ntsuas tau raws li qhov tseeb. Thawj qhov yuav tsum xav txog thaum siv lub sensor yog qhov chaw ua haujlwm tshwj xeeb uas lub sensor nyob.

Qhov no tseem ceeb heev rau kev siv cov sensors kom raug, thiab nws muaj feem cuam tshuam nrog seb lub sensor puas tuaj yeem ua haujlwm kom raug thiab lwm yam kev nyab xeeb thiab kev pabcuam lub neej, thiab txawm tias qhov kev ntseeg siab thiab kev nyab xeeb ntawm txhua lub tshuab hnyav. Qhov kev puas tsuaj los ntawm qhov chaw ib puag ncig rau lub sensor muaj cov hauv qab no: (1) Qhov chaw ib puag ncig kub siab ua rau lub sensor yaj cov khoom siv txheej, qhov chaw vuam, thiab kev hloov pauv ntawm cov qauv hauv kev ntxhov siab thermal ntawm polyurethane elastomer. Cov sensors ua haujlwm hauv qhov chaw ib puag ncig kub siab feem ntau xaiv cov sensors tiv taus cua sov, thiab kuj yuav tsum ntxiv cov rwb thaiv tsev thermal, dej txias, cua txias thiab lwm yam khoom siv.

(2) Kev phom sij ntawm pa luam yeeb thiab av noo rau qhov luv luv ntawm cov sensors. Hauv qhov chaw ib puag ncig no, yuav tsum siv lub sensor uas tsis pub cua nkag tau zoo. Cov sensors sib txawv muaj cov txheej txheem sib txawv, thiab kev ua haujlwm sib txawv heev.

Kev kaw dav dav suav nrog kev sau cov sealant thiab cov khoom siv kho tshuab rau txheej roj hmab ntawv, vuam hluav taws xob (arc vuam tshuab, thiab lwm yam electron beam vuam) rau kev kaw sealing thiab nitrogen filling sealing rau lub tshuab nqus tsev. Los ntawm qhov tseeb ntawm kev kaw, kev vuam hluav taws xob sealing yog qhov zoo tshaj plaws, thiab qhov ntim thiab sealing koob tshuaj tsis zoo. Rau lub sensor ua haujlwm hauv qhov chaw huv thiab qhuav hauv chav, koj tuaj yeem xaiv lub sensor nrog cov nplaum sealing. Rau lub sensor ua haujlwm hauv qhov chaw ib puag ncig nrog cov av noo siab thiab pa luam yeeb, koj yuav tsum xaiv lub pulse shock absorber kub sealing lossis Pulse shock absorber vuam sealing, lub tshuab nqus tsev ntim nitrogen puv sensor.

(3) Nyob rau hauv ib puag ncig ntuj uas muaj kev xeb siab, xws li av noo, txias, kua qaub thiab alkali, uas ua rau puas tsuaj rau polyurethane elastomer, luv luv-circuit tsis ua haujlwm thiab lwm yam kev phom sij rau lub sensor, txheej sab nraud yuav tsum tau xaiv rau electrostatic txau lossis stainless hlau phaj npog, uas muaj kev tiv thaiv corrosion zoo thiab kev ua tau zoo sealing. sensor. (4) Kev puas tsuaj ntawm lub zog sib nqus rau lub sensor tso zis chaotic cov ntaub ntawv teeb liab. Hauv qhov no, cov khoom tiv thaiv ntawm lub sensor daws teeb meem raug kuaj xyuas nruj me ntsis kom pom tias nws puas muaj kev tiv thaiv electromagnetic zoo heev.

(5) Kev kub hnyiab, kev kub hnyiab, thiab kev tawg tsis yog tsuas yog ua rau muaj kev phom sij rau cov sensors xwb, tab sis kuj coj kev hem thawj loj rau lwm yam khoom siv kho tshuab thiab kev nyab xeeb ntawm lub neej. Yog li ntawd, cov sensors ua haujlwm hauv qhov chaw kub hnyiab, kub hnyiab, thiab tawg qhia meej txog cov yam ntxwv ntawm hom tiv thaiv kev tawg: cov sensors tiv thaiv kev tawg yuav tsum tau siv hauv qhov chaw kub hnyiab, kub hnyiab, thiab tawg. Lub hau kaw ntawm hom sensor no yuav tsum tsis txhob tsuas yog xav txog qhov nruj xwb, tab sis kuj xav txog tag nrho lub zog compressive ntawm hom tiv thaiv kev tawg thiab hom tiv thaiv dej noo, tiv thaiv dej thiab tawg ntawm qhov hluav taws xob cable.

Qhov thib ob, kev xaiv ntawm tag nrho cov sensors thiab qhov ntsuas ntau yam: kev xaiv ntawm tag nrho cov sensors nyob ntawm lub hom phiaj tseem ceeb ntawm lub multihead weigher, qib ntawm cov ntsiab lus txhawb nqa ntawm lub cev ntsuas (tus lej ntawm cov ntsiab lus txhawb nqa yuav tsum yog raws li qhov chaw nruab nrab ntawm lub ntiajteb txawj nqus ntawm qhov sib tshooj ntawm lub cev geometry thiab qhov ntsuas ntawm qhov chaw nruab nrab ntawm lub ntiajteb txawj nqus tshwj xeeb). Feem ntau hais lus, qee qhov fulcrums ntawm qhov ntsuas siv qee cov sensors, tab sis cov nplai tshwj xeeb xws li cov nplai hluav taws xob tsuas yog xaiv ib lub sensor, thiab qee qhov electromechanical engineering fusion scales yuav tsum siv tus lej ntawm cov sensors raws li qhov xwm txheej tshwj xeeb. Kev xaiv ntawm qhov ntsuas ntau yam ntawm lub sensor tuaj yeem soj ntsuam raws li cov yam xws li qhov loj ntawm qhov ntsuas, tus lej ntawm cov sensors, qhov hnyav ntawm qhov ntsuas nws tus kheej, thiab qhov hnyav loj thiab thauj khoom ntawm lub log.

Feem ntau hais lus, qhov ntsuas ntawm lub sensor ze rau qhov hnyav ntawm txhua lub sensor, qhov ntsuas qhov tseeb siab dua. Txawm li cas los xij, hauv cov ntawv thov tshwj xeeb, ntxiv rau qhov raug hu ua khoom, kuj tseem muaj qhov hnyav ntawm lub nplai nws tus kheej, qhov hnyav tare, qhov hnyav log thiab kev co. Yog li ntawd, thaum siv qhov ntsuas sensor, ntau yam yuav tsum tau xav txog kom ntseeg tau tias muaj kev nyab xeeb thiab lub neej ntev ntawm lub sensor.

Txoj kev xam ntawm qhov ntsuas ntawm lub sensor tau meej meej tom qab ntau qhov kev sim tom qab coj mus rau hauv tus account ntau yam ntsiab lus uas ua rau lub cev ntsuas phom sij. Cov mis yog xam raws li nram no: C = K-0K-1K-2K-3 (Wmax + W) / N. C- Qhov ntsuas ntau ntawm tus kheej sensor W- Qhov hnyav ntawm qhov ntsuas nws tus kheej Wmax- Nws yog hu ua tus nqi siab tshaj plaws ntawm qhov hnyav ntawm cov khoom N- Tag nrho cov lej ntawm cov fulcrums xaiv los ntawm qhov ntsuas K-0- Cov ntsuas kev pov hwm lag luam, feem ntau yog 1.2 ~ 1.3 K-1- ntawm qhov nruab nrab Shock index K-2- nplai gravity center point offset index K-3-cua pressure index.

Piv txwv li, rau lub tshuab ntsuas hauv pem teb 30t, qhov hnyav siab tshaj plaws yog 30t, qhov hnyav ntawm lub tshuab ntsuas nws tus kheej yog 1.9t, 4 lub sensor raug xaiv, thiab raws li qhov xwm txheej tshwj xeeb thaum lub sijhawm ntawd, cov ntsuas kev pov hwm kev lag luam K-0 = 1.25, cov ntsuas kev cuam tshuam K-1 = 1.18, thiab qhov chaw ntawm lub ntiajteb txawj nqus raug xaiv. Cov ntsuas kev sib txawv ntawm cov ntsiab lus K-2- = 1.03, cov ntsuas cua siab K-3 = 1.02 Kev daws teeb meem: Raws li txoj kev xam ntawm qhov ntsuas sensor: c = K-0K-1K-2K-3 (Wmax + W) / N. c = 1.25 × 1.18 × 1.03 × 1.02 × (30 + 1.9) / 4 = 12.36t. Yog li ntawd, qhov ntsuas ntawm lub sensor yog 15t (lub peev xwm thauj khoom ntawm lub sensor feem ntau tsuas yog 10T, 15T, 20t, 25t, 30t, 40t, 50t, thiab lwm yam, tshwj tsis yog tias nws yog kev hloov kho tshwj xeeb).

Raws li kev paub ua haujlwm, kev ua haujlwm ntawm lub tshuab hnyav feem ntau nyob hauv nws qhov ntsuas ntawm 30% ~ 70%, tab sis lub tshuab hnyav nrog kev cuam tshuam ntau dua hauv tag nrho cov txheej txheem ntawm daim ntawv thov, xws li kev sib npaug ntawm txoj kev khiav, kev sib npaug ntawm lub tsheb hluav taws xob, stainless hlau phaj nplai, thiab lwm yam., Thaum siv lub sensor, feem ntau nthuav nws qhov ntsuas ntau yam, kom lub sensor ua haujlwm hauv 20% txog 30% ntawm nws qhov ntsuas ntau yam. Dua li no, cov teb thov ntawm ntau yam sensors yuav tsum tau xav txog. Qhov tseem ceeb rau kev xaiv ntawm daim ntawv sensor yog hom qhov hnyav thiab qhov chaw ntawm qhov chaw sab hauv tsev, kom ntseeg tau tias qhov chaw teeb tsa zoo, qhov hnyav yog qhov txhim khu kev qha, ntawm qhov tod tes, cov lus pom zoo ntawm cov chaw tsim khoom yuav tsum tau xav txog. Cov chaw tsim khoom feem ntau xav tau daim teb thov ntawm lub sensor raws li lub sensor lub zog, cov kev ua tau zoo, txoj kev teeb tsa, daim ntawv qauv, cov khoom siv polyurethane elastomer thiab lwm yam ntxwv Beam sensors yog qhov tsim nyog rau cov hlau sib sau ua ke thiab tso cov saw hlau sensors xws li cov khoom siv nplai, cov nplai siv hluav taws xob, thiab cov nplai tshuaj ntsuam.

Thaum kawg, yuav tsum xaiv qib kev raug ntawm lub sensor. Qib kev raug ntawm lub sensor suav nrog qhov tsis sib xws ntawm lub sensor, kev txo kev ntxhov siab, kev kho kev ntxhov siab, kev lag luam, kev rov ua dua, kev rhiab heev thiab lwm yam kev ua tau zoo. Thaum siv lub sensor, tsis yog tsuas yog cov cai ntawm qhov kev xaiv hluav taws xob xwb, tab sis kuj yuav tsum xav txog nws tus nqi.

Kev xaiv cov qib sensor yuav tsum xav txog ob qho hauv qab no 1. Xav txog cov kev cai ntawm lub vaj huam sib luag nkag. Lub cim qhia qhov hnyav qhia cov ntaub ntawv qhov hnyav tom qab cov ntaub ntawv tso zis ntawm lub multihead weigher loj dua thiab A / D hloov pauv tau daws. Yog li ntawd, cov ntaub ntawv tso zis ntawm lub multihead weigher yuav tsum loj dua qhov loj me ntawm cov ntaub ntawv nkag uas tau teev tseg los ntawm lub vaj huam sib luag. Qhov rhiab heev ntawm lub multihead weigher raug coj mus rau hauv cov mis sib phim ntawm lub sensor thiab lub vaj huam sib luag, thiab qhov tshwm sim ntawm kev xam yuav tsum loj dua qhov rhiab heev ntawm cov ntaub ntawv nkag uas tau teev tseg los ntawm lub vaj huam sib luag.

Cov mis sib phim ntawm lub tshuab ntsuas qhov hnyav ntau lub taub hau thiab lub vaj huam sib luag: qhov tso zis rhiab heev ntawm lub ntsuas qhov hnyav * lub zog fais fab ntawm kev txhawb zog * qhov loj ntawm lub nplai, qib ntawm myopia ntawm lub ntsuas qhov hnyav * tus lej ntawm cov sensors * qhov ntsuas ntawm lub sensor. Piv txwv li, lub tshuab ntim khoom ntau nrog qhov hnyav ntawm 25kg thiab lub nplai nrog myopia loj ntawm 1000 qhov ntsuas ntau yam xaiv 3 L-BE-25 sensors nrog qhov ntsuas ntau ntawm 25kg thiab qhov rhiab heev ntawm 2.0 ± 0.008mV / V, xaiv AD4325 lub vaj huam sib luag rau cov nplai nrog pob zeb arch choj hluav taws xob ua haujlwm siab ntawm 12V. Nug seb lub sensor xaiv puas yuav tsum tau ua ke nrog lub dashboard.

Kev daws teeb meem: Qhov rhiab heev ntawm AD4325 lub vaj huam sib luag yog 0.6μV / d, yog li raws li cov mis sib phim ntawm lub tshuab ntsuas ntau lub taub hau thiab lub vaj huam sib luag, cov ntaub ntawv nkag tshwj xeeb ntawm lub vaj huam sib luag yog 2 × 12 × 25/1000 × 3 × 25 = 8μV / d> 0.6μV / d. Yog li ntawd, lub tshuab ntsuas ntau lub taub hau xaiv tuaj yeem coj mus rau hauv tus account kev tswj hwm ntawm qhov rhiab heev ntawm lub vaj huam sib luag, uas tuaj yeem ua ke nrog kev xaiv ntawm lub vaj huam sib luag. 2. Xav txog cov kev cai ntawm qhov tseeb ntawm cov npe hluav taws xob.

Ib qho kev sawv cev hluav taws xob feem ntau yog tsim los ntawm peb ntu: nplai, sensor thiab vaj huam sib luag. Thaum xaiv qhov tseeb ntawm lub tshuab ntsuas ntau lub taub hau, qhov tseeb ntawm lub tshuab ntsuas ntau lub taub hau siab dua li tus nqi xam ntawm txoj kev xav yooj yim. Txoj kev xav yooj yim feem ntau raug txwv los ntawm cov laj thawj tseem ceeb, xws li cov nplai. Lub zog compressive ntawm qhov nplai tsis zoo me ntsis, cov yam ntxwv ntawm lub vaj huam sib luag zoo heev, qhov chaw ua haujlwm ntawm qhov nplai yog qhov hnyav heev thiab lwm yam.

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