Yuav ua li cas xaiv ib tug multihead weigher tsim nyog

Author: Smartweigh-Multihead Weighter

Multihead weighter yog lub zog-rau-hluav taws xob hloov khoom siv uas tuaj yeem hloov lub zog mus rau hauv cov teeb liab hluav taws xob, thiab yog qhov tseem ceeb ntawm cov khoom siv ntau lub taub hau. Muaj ntau ntau hom sensors uas tuaj yeem ua kom tiav qhov kev hloov hluav taws xob, feem ntau suav nrog hom kev sib nqus quab yuam, magnetic field force type thiab capacitive sensor. Qhov tseem ceeb ntawm qhov sib nqus quab yuam hom yog cov khoom siv hluav taws xob analytical tshuav, lub capacitor sensor yog ib feem ntawm multihead weighter, thiab cov kev tiv thaiv strain quab yuam hom hnyav tshuab feem ntau yog siv nyob rau hauv feem ntau ntawm cov khoom siv lub cev hnyav.

Lub cev tsis muaj zog ntau lub taub hau hnyav yog qhov yooj yim hauv cov qauv, siab precision, thiab muaj ntau yam siv tau, thiab tuaj yeem siv rau hauv ib puag ncig tsis zoo. Yog li ntawd, qhov tsis kam strain multihead weighter yog tau nyob rau hauv lub multihead weigher. Lub zog tiv thaiv ntau lub taub hau hnyav yog tsim los ntawm polyurethane elastomer, tiv thaiv kab mob ntsuas thiab them nyiaj hluav taws xob hluav taws xob.

Polyurethane elastomer yog ib feem ntawm lub cev hnyav, ua los ntawm cov pa roj carbon zoo thiab zoo aluminium alloy profiles. Qhov ntsuas qhov ntsuas tsis kam yog ua los ntawm cov khoom siv hlau ntawv etched rau hauv daim phiaj cov ntaub ntawv, thiab plaub qhov kev ntsuas kev tiv thaiv kab mob yog glued rau polyurethane elastomer los ntawm tus choj qauv qauv. Nyob rau hauv cov ntaub ntawv ntawm powerlessness, 4 resistors ntawm tus choj Circuit Court muaj nqi tib yam, tus choj Circuit Court nyob rau hauv ib tug balanced lub xeev, thiab cov zis yog xoom.

Thaum lub polyurethane elastomer yog deformed los ntawm kev quab yuam, qhov kev ntsuas qhov ntsuas kuj tseem deformed. Thaum lub sij hawm tag nrho cov txheej txheem ntawm polyurethane elastomer raug quab yuam thiab dabtsi yog khoov, ob lub zog ntsuas ntsuas yog stretched, cov hlau hlau yog stretched, thiab tus nqi kuj nce, thiab lwm yam yog raug quab yuam, thiab tus nqi kuj txo. Nyob rau hauv txoj kev no, lub hauv paus kev sib npaug ntawm tus choj Circuit Court yog tawm ntawm qhov sib npaug, thiab muaj qhov ua haujlwm voltage sib txawv ntawm ob sab ntawm tus choj Circuit Court. Qhov sib txawv ntawm kev ua haujlwm yog cuam tshuam nrog qhov loj ntawm lub zog ntawm polyurethane elastomer. Txheeb xyuas qhov sib txawv ntawm kev ua haujlwm kom tau txais qhov loj ntawm lub zog sensor, qhov ua haujlwm voltage Tom qab cov ntaub ntawv teeb liab raug kuaj xyuas thiab xam los ntawm cov ntsuas vaj huam sib luag, txhawm rau kom siv tau zoo dua qhov chaw ntawm ntau lub taub hau hnyav, ntau lub taub hau hnyav yog tsim los ntawm ntau yam. Cov qauv qauv, thiab lub npe ntawm lub sensor feem ntau kuj hu ua raws li nws cov qauv tsim.

Piv txwv li, stacking saw sensor (tseem ceeb hluav taws xob tsheb tshuav), cantilever beam hom (hauv av tshuav nyiaj li cas, warehouse scale, hluav taws xob tsheb tshuav), kem hom (electronic tsheb tshuav nyiaj li cas, warehouse scale), tsheb hom (scale), s-type ( warehouse scales) thiab lwm yam. Ib tug multihead weighter nruab nrab tuaj yeem sau cov sensors hauv ntau hom qauv. Yog tias lub sensor raug xaiv kom raug, nws yuav pab txhim kho cov yam ntxwv ntawm ntau lub taub hau hnyav.

Muaj ntau yam kev qhia tshwj xeeb thiab cov qauv ntawm kev tiv thaiv kab mob ntau lub taub hau hnyav, xws li ntau pua grams mus rau ntau pua tons. Thaum xaiv qhov ntsuas qhov ntsuas ntawm lub taub hau ntau lub qhov hnyav, nws yuav tsum tau qhia meej raws li qhov loj ntawm qhov siv ntau lub taub hau hnyav. Txoj cai ntawm tus ntiv tes xoo yog raws li nram no: tag nrho cov sensor load (qhov siab tshaj plaws tso cai load ntawm tus kheej sensors x tus naj npawb ntawm sensors) = 1/2 ~ 2/3 ntawm qhov siab tshaj plaws qhov hnyav ntawm multihead weighter.

Qhov tseeb theem ntawm multihead weighter muab faib ua plaub theem: a, b, c, thiab d. Cov qib sib txawv muaj qhov sib txawv ntawm qhov yuam kev. Class A sensors tau teev tseg max.

Tus lej tom qab qib sawv cev rau qhov ntsuas ntsuas ntsuas ntsuas, qhov loj dua cov ntaub ntawv, qhov zoo ntawm lub sensor. Piv txwv li, C2 txhais tau tias C qib, 2000 metrological pov thawj qhov tseem ceeb C5 txhais tau tias C qib, 5000 metrological pov thawj qhov tseem ceeb. Pom tseeb C5 siab dua C2.

Cov qib ntawm cov sensors feem ntau yog C3 thiab C5, thiab ob qib ntawm cov ntsuas no tuaj yeem siv los ua ntau lub taub hau hnyav nrog qib raug ntawm III. Qhov yuam kev ntawm multihead weighter feem ntau yog tshwm sim los ntawm kev tsis sib haum xeeb, kev ua yuam kev lag luam, kev ua yuam kev rov ua dua, kev ntxhov siab ntxiv, qhov yuam kev ntxiv ntawm xoom taw tes kub thiab qhov yuam kev ntxiv ntawm qhov ntsuas qhov tso zis. Cov sensors digital uas tau tshwm sim nyob rau xyoo tas los no muab A / D hloov hluav taws xob hloov hluav taws xob thiab CPU fais fab mov Circuit Court rau hauv lub sensor. Cov zis ntawm lub sensor tsis yog qhov analog ua haujlwm voltage cov ntaub ntawv teeb liab, tab sis qhov hnyav ntawm lub teeb liab analog teeb liab daws tau los ntawm kev daws teeb meem, uas muaj qhov zoo hauv qab no: 1. Instrument vaj huam sib luag Cov ntaub ntawv teeb liab ntawm txhua lub digital sensor tuaj yeem sau sib cais, suav nrog. cov kab zauv sib npaug, thiab txhua lub sensor tuaj yeem ua rau nws tus kheej calibrated, thiab qhov ua tau ntawm kev kho qhov yuam kev ntawm plaub fab ntawm ib zaug yog siab heev.

Qhov mob taub hau loj tshaj plaws nyob rau hauv multihead weighters siv cov digital thiab analog sensors yog qhov kev hloov pauv ntawm plaub lub kaum ntse ntse, uas feem ntau yuav tsum muaj ntau qhov kev ntsuas los qhia, txhua zaus txav tus qauv hnyav, uas yog siv sijhawm thiab siv zog ntau. 2. Vim tias lub ntsuas vaj huam sib luag tuaj yeem ntes cov ntaub ntawv teeb liab ntawm txhua lub sensors, cov teeb meem ntawm txhua lub sensors tuaj yeem pom los ntawm lub ntsuas vaj huam sib luag, uas yooj yim rau kev saib xyuas. 3. Cov digital sensor xa cov teeb liab analog los ntawm 485 interface, thiab kev sib kis tau ntev tsis muaj kev cuam tshuam.

Tshem tawm ntawm cov teeb meem nyuaj thiab cuam tshuam ntawm cov teeb liab mem tes. 4. Ntau yam yuam kev ntawm lub sensor tuaj yeem hloov kho raws li lub microcontroller hauv lub digital sensor, kom cov ntaub ntawv tso zis sensor cov ntaub ntawv raug ntau dua. Multihead weighter yog hu ua lub hauv paus paj hlwb ntawm lub multihead weighter, thiab nws cov yam ntxwv feem ntau txiav txim siab qhov tseeb thiab kev ntseeg siab ntawm multihead weighter.

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

Qhov no yog qhov tseem ceeb tshwj xeeb rau kev siv cov sensors kom raug, thiab nws muaj feem cuam tshuam txog seb lub sensor tuaj yeem ua haujlwm zoo thiab lwm yam kev nyab xeeb thiab kev pabcuam lub neej, thiab txawm tias muaj kev ntseeg siab thiab kev nyab xeeb ntawm txhua lub tshuab hnyav. Qhov teeb meem tshwm sim los ntawm ib puag ncig ntuj rau lub sensor muaj cov hauv qab no: (1) Qhov kub thiab txias ib puag ncig ua rau lub sensor yaj cov khoom txheej, qhov chaw vuam, thiab cov qauv kev hloov pauv hauv thermal stress ntawm polyurethane elastomer. Cov sensors ua haujlwm nyob rau hauv qhov kub thiab txias ib puag ncig feem ntau xaiv cov ntsuas kub-resistant, thiab yuav tsum tau ntxiv thermal rwb thaiv tsev, dej txias, cua txias thiab lwm yam khoom siv.

(2) Kev phom sij ntawm cov pa luam yeeb thiab av noo rau qhov tsis ua haujlwm luv luv ntawm cov sensors. Nyob rau hauv tej yam ntuj tso ib puag ncig ntawm no, yuav tsum tau siv ib tug heev airtight sensor. Cov sensors sib txawv muaj ntau txoj kev sib khi, thiab kev sib khi ua haujlwm sib txawv heev.

General sealing muaj xws li sau cov sealant thiab txhua yam khoom siv rau txheej roj hmab ntawv, hluav taws xob vuam (arc vuam tshuab, thiab lwm yam. electron beam vuam) rau sealing sealing thiab nitrogen filling sealing rau lub tshuab nqus tsev ntim. Los ntawm cov txiaj ntsig tiag tiag ntawm kev sib khi, qhov hluav taws xob welding sealing yog qhov zoo tshaj plaws, thiab qhov ntim thiab sealing ntau npaum li cas tsis zoo. Rau lub sensor ua hauj lwm nyob rau hauv ib tug huv thiab qhuav ib puag ncig nyob rau hauv lub chav tsev, koj muaj peev xwm xaiv lub sensor nrog nplaum sealing. Rau lub sensor ua hauj lwm nyob rau hauv lub ntuj puag ncig nrog high humidity thiab pa luam yeeb, koj yuav tsum xaiv lub pulse shock absorber tshav kub sealing los yog Pulse shock absorber vuam sealing, nqus ntim nitrogen ntim sensor.

(3) Nyob rau hauv ib puag ncig ntuj nrog corrosion siab, xws li av noo, txias, kua qaub thiab alkali, uas ua rau kev puas tsuaj rau polyurethane elastomer, luv-circuit tsis ua hauj lwm thiab lwm yam kev phom sij rau lub sensor, txheej txheej yuav tsum tau xaiv rau electrostatic txau los yog stainless hlau phaj npog, uas muaj corrosion kuj zoo thiab sealing kev ua tau zoo. sensor. (4) Kev puas tsuaj ntawm cov hlau nplaum rau lub sensor tso tawm chaotic cov ntaub ntawv teeb liab. Nyob rau hauv rooj plaub no, cov cuab yeej tiv thaiv ntawm cov tshuaj sensor yog nruj me ntsis xyuas kom pom tias nws muaj kev tiv thaiv electromagnetic zoo heev.

(5) Flammability, flammability, thiab tawg tsis tsuas yog ua rau muaj kev phom sij rau cov sensors, tab sis kuj coj kev hem thawj rau lwm yam khoom siv tshuab thiab kev nyab xeeb ntawm lub neej. Yog li ntawd, sensors ua hauj lwm nyob rau hauv flammable, flammable, thiab explosive ntuj ib puag ncig kom meej meej qhia cov yam ntxwv ntawm explosion-proof hom: tawg-pov thawj sensors yuav tsum tau siv nyob rau hauv flammable, flammable, thiab explosive ntuj puag ncig. Lub sealing npog ntawm hom sensor no yuav tsum tsis tsuas yog xav txog qhov nruj, tab sis kuj xav txog lub zog compressive ntawm hom tawg-pov thawj thiab noo noo-pov thawj, waterproof thiab tawg-pov thawj hom ntawm lub qhov hluav taws xob cable.

Qhov thib ob, kev xaiv ntawm tag nrho cov naj npawb ntawm cov sensors thiab ntsuas ntau yam: kev xaiv ntawm tag nrho cov naj npawb ntawm cov sensors nyob ntawm lub hom phiaj tseem ceeb ntawm multihead weighter, qib ntawm cov ntsiab lus txhawb nqa ntawm lub cev ntsuas (tus naj npawb ntawm cov ntsiab lus txhawb nqa yuav tsum. Ua raws li lub ntiajteb txawj nqus chaw taw tes ntawm qhov sib tshooj ntawm lub cev geometry thiab cov qauv ntsuas ntawm qhov tshwj xeeb lub ntiajteb txawj nqus chaw taw qhia). Feem ntau hais lus, qee qhov fulcrums ntawm cov nplai siv qee qhov ntsuas, tab sis cov nplai tshwj xeeb xws li cov ntsuas hluav taws xob sib txuas tsuas yog xaiv ib lub sensor, thiab qee qhov hluav taws xob engineering fusion scale yuav tsum kom meej meej siv tus naj npawb ntawm cov sensors raws li qhov xwm txheej tshwj xeeb. Kev xaiv ntawm kev ntsuas ntau ntawm lub sensor tuaj yeem ntsuas raws li qhov loj ntawm qhov ntsuas, tus naj npawb ntawm cov ntsuas, qhov hnyav ntawm qhov ntsuas nws tus kheej, thiab qhov ua tau loj log hnyav thiab thauj khoom.

Feem ntau hais lus, qhov ze dua qhov ntsuas qhov ntsuas ntawm qhov ntsuas yog rau lub nra ntawm txhua lub sensor, qhov hnyav dua qhov raug. Txawm li cas los xij, hauv cov ntawv thov tshwj xeeb, ntxiv rau kev hu ua cov khoom, kuj tseem muaj qhov hnyav ntawm qhov ntsuas nws tus kheej, qhov hnyav hnyav, lub log hnyav thiab kev vibration shock. Yog li ntawd, thaum siv lub ntsuas ntsuas ntau yam, ntau yam yuav tsum tau txiav txim siab los xyuas kom meej qhov kev nyab xeeb thiab lub neej ntev ntawm lub sensor.

Cov txheej txheem suav ntawm kev ntsuas ntau ntawm lub sensor tau qhia meej tom qab ntau qhov kev sim tom qab muab rau hauv tus account ntau yam uas ua rau muaj kev phom sij rau lub cev. Cov mis yog xam raws li nram no: C = K-0K-1K-2K-3(Wmax+W)/N. C- Qhov ntsuas qhov ntsuas ntawm tus kheej 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 fulcrums xaiv los ntawm qhov ntsuas K-0- Kev tuav pov hwm kev lag luam index, feem ntau 1.2 ~ 1.3 K-1- ntawm intermediary Shock Performance index K-2-scale gravity center point offset index K-3-air pressure index.

Piv txwv li, rau 30t hluav taws xob hauv pem teb nplai, qhov siab tshaj plaws qhov hnyav yog 30t, qhov hnyav ntawm qhov ntsuas nws tus kheej yog 1.9t, 4 sensors raug xaiv, thiab raws li qhov xwm txheej tshwj xeeb ntawm lub sijhawm, kev lag luam pov hwm kev lag luam index K-0 = 1.25 , qhov cuam tshuam Performance index K-1 = 1.18, thiab qhov nruab nrab ntawm lub ntiajteb txawj nqus raug xaiv. Point deviation Performance index K-2-= 1.03, huab cua siab Performance index K-3 = 1.02 Kev daws: Raws li kev suav cov txheej txheem ntawm qhov ntsuas ntsuas qhov ntsuas: c = K-0K-1K-2K-3 (Wmax + W) / N. c = 1.25×1.18×1.03 ib×1.02 ib×(30+1.9)/4 = 12.36t. Yog li ntawd, qhov ntsuas ntau 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 nws yog qhov tshwj xeeb customization).

Raws li kev ua haujlwm, kev ua haujlwm ntawm lub tshuab hnyav yog feem ntau nyob rau hauv nws qhov ntsuas ntawm 30% ~ 70%, tab sis lub tshuab hnyav nrog kev cuam tshuam ntau dua nyob rau hauv tag nrho cov txheej txheem ntawm daim ntawv thov, xws li dynamic khiav tshuav, dynamic hluav taws xob tsheb sib npaug, stainless steel phaj nplai, thiab lwm yam, thaum siv lub sensor, feem ntau nthuav nws cov kev ntsuas ntau, kom lub sensor ua haujlwm li ntawm 20% mus rau 30% ntawm nws qhov ntsuas ntau. Ib zaug ntxiv, daim ntawv thov teb ntawm ntau yam sensors yuav tsum raug txiav txim siab. Tus yuam sij rau kev xaiv ntawm daim ntawv sensor yog hom qhov hnyav thiab kev teeb tsa ntawm qhov chaw sab hauv, kom ntseeg tau tias qhov chaw tsim nyog, qhov hnyav yog txhim khu kev qha, ntawm qhov tod tes, cov chaw tsim khoom cov lus pom zoo yuav tsum tau txiav txim siab. Cov neeg tsim khoom feem ntau xav tau lub sensor daim ntawv thov teb raws li qhov ntsuas qhov ua tau zoo, kev ua haujlwm tsis zoo, kev teeb tsa, cov qauv qauv, cov khoom siv polyurethane elastomer thiab lwm yam ntxwv Beam sensors yog tsim rau cov hlau tsub zuj zuj thiab tso cov saw hlau xws li cov khoom siv ntsuas, cov khoom siv hluav taws xob, thiab kev tshuaj ntsuam. nplai.

Thaum kawg, theem ntawm qhov tseeb ntawm lub sensor yuav tsum raug xaiv. Qhov tseeb theem ntawm lub sensor muaj xws li lub sensor lub nonlinearity, kev nyuaj siab so, kev nyuaj siab kho, lag, repeatability, rhiab heev thiab lwm yam kev ua tau zoo qhia. Thaum siv lub sensor, tsis yog tsuas yog cov kev cai raug ntawm kev tsim hluav taws xob, tab sis kuj yuav tsum tau txiav txim siab nws cov nqi.

Kev xaiv ntawm qib sensor yuav tsum xav txog ob yam hauv qab no 1. Xav txog cov kev cai ntawm lub ntsuas ntsuas vaj huam sib luag. Qhov taw qhia qhov hnyav qhia cov ntaub ntawv hnyav tom qab cov ntaub ntawv tso tawm ntawm cov khoom siv ntau lub taub hau loj dua thiab A / D hloov dua siab tshiab tau daws. Yog li ntawd, cov ntaub ntawv tso tawm cov teeb liab ntawm lub multihead weighter yuav tsum loj dua li qhov input mob loj teev los ntawm lub ntsuas vaj huam sib luag. Cov zis rhiab heev ntawm lub multihead weighter yog coj mus rau hauv cov mis sib txuam ntawm lub sensor thiab lub ntsuas vaj huam sib luag, thiab cov txiaj ntsig ntawm kev suav yuav tsum ntau dua qhov kev nkag siab ntawm cov khoom siv tau teev tseg los ntawm lub ntsuas vaj huam sib luag.

Cov qauv sib txuam ntawm multihead weighter thiab lub ntsuas vaj huam sib luag: cov zis rhiab heev ntawm qhov ntsuas qhov hnyav * lub zog hluav taws xob ntawm kev txhawb nqa * qhov loj ntawm qhov ntsuas, qhov ntsuas ntawm myopia ntawm qhov ntsuas qhov hnyav * tus naj npawb ntawm sensors * ntsuas ntau yam ntawm lub sensor. Piv txwv li, lub tshuab ntim khoom kom muaj nuj nqis nrog qhov hnyav ntawm 25kg thiab qhov ntsuas nrog qhov loj ntawm myopia ntawm 1000 ntsuas ntau yam xaiv 3 L-BE-25 sensors nrog ntsuas ntau ntawm 25kg thiab qhov rhiab heev ntawm 2.0.±0.008mV / V, xaiv AD4325 ntsuas vaj huam sib luag rau nplai nrog pob zeb koov choj hluav taws xob ua haujlwm siab ntawm 12V. Nug seb tus sensor xaiv puas yuav tsum tau ua ke nrog lub dashboard.

Kev daws: Lub tswv yim rhiab heev ntawm AD4325 ntsuas vaj huam sib luag yog 0.6μV / d, yog li raws li cov qauv sib txuam ntawm cov khoom siv ntau lub taub hau thiab cov ntsuas vaj huam sib luag, cov ntaub ntawv qhia tshwj xeeb ntawm lub ntsuas vaj huam sib luag yog 2×12×25/1000 Nws×3×25 = 8 μV / d>0.6 μV / d. Yog li ntawd, xaiv multihead weighter tuaj yeem coj mus rau hauv tus account cov kev cai ntawm cov tswv yim rhiab heev ntawm lub ntsuas vaj huam sib luag, uas tuaj yeem ua ke nrog kev xaiv ntawm lub ntsuas vaj huam sib luag. 2. Xav txog cov kev cai ntawm qhov raug 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 ntsuas vaj huam sib luag. Thaum xaiv qhov tseeb ntawm multihead weighter, qhov tseeb ntawm multihead weighter yog me ntsis siab dua tus nqi ntawm cov kev xav hauv paus. Cov kev xav yooj yim feem ntau yog txwv los ntawm lub hom phiaj vim li cas, xws li ntsuas. Lub zog compressive ntawm lub teev yog me ntsis tsis zoo, cov yam ntxwv ntawm lub ntsuas vaj huam sib luag yog zoo heev, lub chaw ua hauj lwm ib puag ncig ntawm lub teev yog huab thiab lwm yam.

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