Lub hauv paus ntsiab lus ntawm multihead weigher thiab nws cov thev naus laus zis rotary metrological verification

Tus Sau: Smartweigh– Multihead Weighter

Kev txhim kho kev siv tshuab ntawm kev txheeb xyuas qhov ntsuas ntawm lub rotary thiab nws lub hauv paus ntsiab lus ntawm kev ntsuas qhov hnyav tsis muaj qhov hnyav 1. Qhov xwm txheej tam sim no ntawm txoj kev txheeb xyuas kev ntsuas ntawm lub rotary mixer 1.1 Txoj kev txheeb xyuas kev ntsuas ntawm kev siv ib txwm muaj ntau txoj hauv kev hauv kev txheeb xyuas kev ntsuas ntawm cov khoom siv fibrous xws li cov ntaub ntawv kho kom zoo nkauj, nplej, roj, khoom noj, kev khawb av, thiab lwm yam, lossis thaum tswj cov khoom qab zib online. Cov classic ntau dua yog: cov nplai siv hluav taws xob, cov ntsuas dej ntws ntawm cov phaj, cov nplai nuclear, thiab cov nplai pub mov disc. Txoj kev txheeb xyuas kev ntsuas no muaj nws tus yam ntxwv, tab sis cov kev txwv loj heev.

Cov txheej txheem ua tiav ntawm lub tshuab ntsuas siv hluav taws xob tau qhia meej. Cov Kauj Ruam: Lub tshuab ntsuas siv hluav taws xob sib xyaw cov ntaub ntawv thauj khoom tau txais ntawm tag nrho thaj chaw (qhov hnyav) ntawm lub tuam txhab thiab cov ntaub ntawv teeb liab ntawm qhov hloov pauv (qhov sib piv ntawm qhov ceev ntawm txoj siv sib kis) kom tau txais tag nrho cov nqi ntws. Cov hom phiaj tswj tau. Lus Cim: Tus nqi ntawm cov khoom siv uas yuav tsum tau rub tawm raug hloov pauv raws li qhov sib piv ceev ntawm txoj siv tsav rub-thiab-rub. Tom qab cov khoom siv raw tau zoo nkauj thiab zoo nkauj los ntawm qhov chaw pub mis ntawm lub chute pub mis, nws cov tuab yog ruaj khov thiab txawm tias. Txawm hais tias qhov sib piv ceev ntawm txoj siv conveyor, qhov thauj khoom ntawm txoj siv tsav yog tag nrho yog qhov tsis hloov pauv. Piv nrog rau lwm txoj kev pub mis, txoj kev no muaj qhov cuam tshuam zoo ntawm kev txheeb xyuas metrological thiab linearity.

1.2 Kev siv txoj kev ntsuas qhov ntsuas ntawm lub voj voog hauv cov tshuab sib tov tas mus li Cov tshuab sib tov tam sim no suav nrog: cov tshuab sib tov av uas ruaj khov, cov tshuab sib tov pob zeb, thiab cov tshuab sib tov bitumen. Raws li qhov tseeb ntawm kev txheeb xyuas metrological, ntawm theem no, hom khoom siv no tsis tuaj yeem siv dav dav nrog kev sib xyaw tsis tu ncua. Yog li ntawd, txoj kev sib tov tsis tu ncua tsis tau txais kev nyiam los ntawm ntau tus neeg siv khoom, uas kuj yog ib qho ntawm cov yam tseem ceeb.

Kev ua qauv qhia txog kev tshawb fawb qhia tau tias cov thev naus laus zis sib xyaw thiab ua tiav uas tau txiav txim siab los ntawm ob txoj kev ntsuas kev ntsuas no yog txhua qhov chaw tsim nyog, thiab kev siv cov khoom sib xyaw rotary yuav tsum tsis txhob raug kev phom sij vim yog cov kev txwv tam sim no ntawm cov thev naus laus zis. Nyob rau theem no, hauv peb lub tebchaws, cov tshuab sib xyaw rotary raug ntsuas los ntawm txoj kev ntim lossis cov nplai siv hluav taws xob / nplai kauv. Xyoo 1970, cov thev naus laus zis sib xyaw ua ke tau qhia los ntawm Tebchaws Europe los tsim thiab tsim. Txog tam sim no, nws tau zoo li no, thiab tsis muaj kev txhim kho txij thaum pib mus txog thaum xaus. Qhov tseeb, ob txoj kev ntsuas kev ntsuas no tuaj yeem siv tau hauv Tebchaws Europe nrog qhov tseeb siab. Piv txwv li, qhov ntsuas siv txoj siv sib kis ntawm Zhongshan Smart weigh muaj qhov tseeb ntawm 2%.

Tab sis hauv kuv lub tebchaws, nws tsis zoo, vim nws nyob ntawm kev txwv ntawm kev tsim khoom lag luam yooj yim xws li kev tsim khoom siv thiab cov khoom siv hauv kuv lub tebchaws. Nyob rau theem no, qhov tseeb ntawm kev ntsuas qhov tseeb ntawm cov nplai siv hluav taws xob siv hauv kev teb hauv Suav teb feem ntau tsuas yog li 5%, uas tsis txawv ntawm kev ntsuas qhov muaj peev xwm, thiab kev ntseeg siab mus sij hawm ntev tsis muaj zog. ob. Kev Hloov Kho Qhov Hnyav Txuas Ntxiv Mus—— Lub tshuab ntsuas ntau lub taub hau (Lus Askiv Poob-hauv-qhov hnyav) ntawm qhov sib txawv ntawm cov tshuaj txo qis (lub xeev tsis muaj qhov hnyav) tau siv thawj zaug hauv tag nrho cov txheej txheem ntawm kev tsim khoom lag luam hauv xyoo 1990 rau kev txheeb xyuas metrological txuas ntxiv mus.

Lub tshuab ntsuas ntau lub taub hau maj mam hloov cov nplai siv hluav taws xob, cov nplai kauv, thiab txawm tias cov nplai sib sau ua ke. Raws li txoj kev ntsuas tshiab tshaj plaws, ntau thiab ntau cov khoom siv raw tau maj mam siv. 2.1 Lub tswv yim tseem ceeb: Siv lub thoob ntsuas thiab lub koom haum pub mis ua lub cev ntsuas tag nrho, txuas ntxiv kuaj cov ntaub ntawv qhov hnyav ntawm lub cev ntsuas raws li lub vaj huam sib luag lossis software ntawm lub khoos phis tawj sab saud, thiab ntsuas qhov hloov pauv ntawm qhov hnyav hauv lub sijhawm ua qhov ceev tam sim ntawd Tag nrho cov dej ntws, thiab tom qab ntawd los ntawm ntau yam khoom siv kho vajtse thiab software lim cov kev daws teeb meem, tuaj yeem siv ua ib nrab ntawm kev hloov kho "kev ntws tag nrho". Kev tau txais cov ntaub ntawv ntws no yog qhov tseem ceeb heev, thiab nws yog lub hauv paus rau kev ntsuas thiab kev txheeb xyuas qhov tseeb ntawm qhov ntsuas tsis muaj qhov hnyav.

Ib txoj kev ib txwm muaj piav qhia meej hauv daim duab: txoj kev ntsuas qhov hnyav ntawm ntau lub taub hau, thiab tom qab ntawd FC pub rov qab rau qhov kev ua kom zoo dua raws li PID lub tswv yim, ua qhov kev suav ua haujlwm ntawm tag nrho cov dej ntws ze rau lub hom phiaj tag nrho, thiab tso tawm cov ntaub ntawv kho kom raug los ua haujlwm lub tshuab pib mos thiab lwm yam khoom noj vibrating. vaj huam sib luag tswj. 2.2 Daim ntawv thov tiag tiag ntawm qhov sib txawv ntawm qhov ntsuas qhov hnyav (multihead weigher): Los ntawm txoj cai ua haujlwm, nws tuaj yeem pom tias nws yuav tsis raug cuam tshuam los ntawm kev hloov pauv khoom siv kho tshuab ntawm lub cev ntsuas thiab cov qauv pub mis. Nws tsuas yog ntsuas qhov yuam kev qhov hnyav tag nrho (qhov hnyav sib txawv), uas txawv ntawm cov tsoos Piv nrog cov txheej txheem ntsuas qhov ntsuas dynamic metrological, nws cov yam ntxwv yog qhov pom tseeb. Thaum lub hom phiaj tswj yog tag nrho cov dej ntws (t / h, kg / min), thiab cov khoom siv raw muaj kev thauj mus los zoo, thiab qhov ntsuas qhov tseeb ntawm qhov ntsuas yog siab, qhov hnyav tsis muaj qhov hnyav metrological kev txheeb xyuas tuaj yeem siv ua txoj kev npaj zoo tshaj plaws.

2.2.2 Cov txheej txheem tsim khoom ntawm qhov hnyav tsis muaj qhov hnyav: cov txheej txheem tsim khoom ntawm ntau lub taub hau hnyav 2.2.3 Cov teeb meem xav tau kev saib xyuas hauv cov qauv tsim ntawm qhov hnyav tsis muaj qhov hnyav, cov yam ntxwv cuam tshuam rau qhov tseeb: ntau lub taub hau hnyav muaj cov yam ntxwv ntawm cov ntaub ntawv zoo li qub thiab cov nplai dynamic. Thaum tsim cov software system, nws tau teev tseg tias: 1. Qhov ntau thiab tsawg ntawm kev thauj mus los, feem ntau hauv thaj chaw ua haujlwm tshwj xeeb, 60% txog 70% ntawm lub peev xwm thauj khoom ntsuas yog qhov zoo tshaj plaws. Yog tias kev sib txuas lus thiab kev hloov pauv ceev siv, nws yog qhov zoo tshaj plaws los teb rau qhov zaus ntawm kev ntxhov siab ntawm 35-40Hz. Qhov no ua kom muaj ntau yam kev hloov kho.

Nws kuj yog vim tias thaum tus nqi thauj mus los qis dhau, qhov ruaj khov ntawm lub kaw lus software tsis zoo. 2. Qhov ntsuas ntawm lub sensor yog qhov nruab nrab. Hauv lwm lo lus, lub sensor kuj siv 60% ~ 70% ntawm nws qhov ntsuas raws li cov mis. Lub teeb liab cov ntaub ntawv muaj ntau yam kev hloov pauv, uas yog qhov zoo heev rau kev txhim kho qhov tseeb. 3. Lub tswv yim tsim qauv tshuab yuav tsum xyuas kom meej tias cov khoom siv raw muaj kev ncig zoo, thiab tseem xyuas kom meej tias lub sijhawm ua ntej faib khoom luv luv, thiab kev pub mis yuav tsum tsis txhob ntau dhau. Feem ntau, nws siv sijhawm 5-10 feeb los rov ua kom cov khoom siv rov qab.

Lub cuab yeej xa xov ntawm cov chaw txhawb nqa yuav tsum ua kom ruaj khov thiab zoo linear duab. 2.2.4 Daim ntawv thov kev cia siab: Nrog rau kev txhim kho sai ntawm cov khoom siv hluav taws xob tswj hwm, lub tshuab ntsuas ntau lub taub hau yog raws li kev xaiv cov thev naus laus zis tshiab, thiab qhov tseeb ntawm kev txheeb xyuas metrological tau nce ntxiv los ntawm 0.3% mus rau 0.5%. Thiab qhov nce mus rau 0.1% ~ 0.2%, lossis txawm tias dhau ntawm qhov ntsuas cov ntaub ntawv zoo li qub, qhov tseem ceeb rau cov txheej txheem tshiab no yog kev siv cov ntsuas qhov hnyav digital.

2.2.4.1 Kev siv lub ntsuas qhov hnyav digital: Yuav kom sib koom ua ke zoo dua rau qhov tsim nyog ntawm kev ntsuas dynamic thiab raug, nws yog qhov tseem ceeb heev uas yuav tsum siv ua lub ntsuas software tseem ceeb hauv cov khoom siv ntsuas. Tshwj xeeb tshaj yog nyob rau hauv qhov chaw uas yuav tsum ntse, cov ntaub ntawv tib lub sijhawm lossis tsis ncaj qha ntawm lub sensor yog qhov tseem ceeb. Lub sijhawm no, qhov tsis paub meej ntawm kev ntsuas qhov tseeb thiab qhov nrawm ntawm kev kuaj pom feem ntau yog ob qho sib txawv, thiab nws nyuaj rau sib npaug ob qho, thiab nws yog qhov tsim nyog los txiav txim siab qhov xwm txheej tshwj xeeb. Ua kom muaj kev pom zoo. Hauv kev lag luam ntsuas qhov hnyav, ntau lub ntsuas digital analog ib txwm muaj feem ntau tsim thiab siv hauv kuv lub tebchaws, thiab cov zis ntawm lub teeb liab pulse yog me me.

Piv txwv li, siv lub ntsuas qhov hnyav uas muaj tag nrho cov zis loj thiab lub hauv paus ntsiab lus ntawm lub zog resistor ua piv txwv, qhov tso zis loj yog 30-40mV. Yog li ntawd, cov teeb liab cov ntaub ntawv yooj yim cuam tshuam los ntawm lub xov tooj cua zaus, thiab qhov deb ntawm lub cable kuj luv, feem ntau tsis pub dhau kaum meters. Hauv cov khoom siv hnyav hauv lub thawv (silo scale batching scale), cov khoom siv hnyav platform lossis lub choj nplai (electronic truck scale lossis rail scale) siv ntau lub ntsuas kub hauv series, lub kaw lus ua haujlwm cov ntaub ntawv tuaj yeem siv los ua kom tiav "self-calibration".

Qhov no yog vim muaj ntau lub digital sensor system software, tsis muaj teeb meem sib phim. Tus neeg siv khoom tuaj yeem nkag mus rau qhov chaw nyob, qhov hnyav thiab qhov rhiab heev ntawm txhua tus maub los, thiab tom qab ntawd nws tuaj yeem ua qhov kev hloov kho ntawm nws tus kheej. "plaub lub ces kaum" lossis "ntug" Sib npaug, tsis tas yuav kho qhov tsab ntawv dua thiab dua. Hauv qhov kev sim ua haujlwm, tom qab ntau lub sensors tau txuas ua ke, cov yam ntxwv ntawm txhua tus maub los yuav tsis sib txawv ntawm lwm tus. Thaum calibrating, qhov hnyav txheem yuav tsum tau tso tawm ntawm txhua lub sensor thiab qhov hluav taws xob siab hauv cov terminals yuav tsum tau siv. Lub regulator siab raug kho.

Vim tias muaj kev sib tw t-test thaum kho, nws rov ua dua ntau zaus. Hauv lub kaw lus ntaub ntawv, txhua lub sensor raug tso cai rau kev kuaj xyuas ib tus zuj zus ua ib qho. Yog li ntawd, lub sijhawm los kho tag nrho cov nqi ntawm software nrog lub kaw lus digital sensor tsuas yog 1/4 ntawm qhov kev simulation ntawm lub kaw lus.

Kev siv cov software system data kuj ua tau "self-diagnosed", uas yog, qhov kev kuaj mob ntawm qhov program yuav tshuaj xyuas seb cov data signal ntawm txhua lub sensor puas raug kaw, seb cov output puas raug tshaj dhau, thiab lwm yam. Yog tias muaj teeb meem, cov lus lossis lub tswb yuav tshwm sim rau ntawm lub dashboard lossis lub control panel, thiab cov neeg siv khoom siv tau cov yuam sij ntawm lub control panel los nrhiav txhua lub sensor, txheeb xyuas qhov ua rau muaj teeb meem thiab daws teeb meem. Hom kev txiav txim siab no thiab kev daws teeb meem yog qhov zoo rau cov neeg siv khoom, tab sis nws nyuaj rau hnov ​​qab thiab ua nws ntawm tus nqi qis hauv kev simulation ntawm analog sensor system software.

Hauv kev lag luam hnyav, qhov kev daws teeb meem ntawm qhov hloov pauv coefficient SPWM ntawm cov software simulation sensor system yog 16 bits, thiab muaj 50,000 suav muaj; thiab qhov kev daws teeb meem ntawm txhua lub sensor hauv cov ntaub ntawv system yog 20 bits. , muaj 1,000,000 suav muaj. Yog li ntawd, ib lub software system nrog 4 lub sensors digital tuaj yeem tsim qhov kev daws teeb meem ntawm 4,000,000 suav. Cov txiaj ntsig ntawm cov pixels siab no yog qhov tshwj xeeb tshaj yog rau cov chaw uas lub thav duab hnyav heev thiab qhov hnyav ntawm cov khoom hnyav me me.

Piv txwv li: hauv cov khoom siv ntsuas qhov hnyav ntawm cov khoom qab zib, qee zaum qee hom khoom siv raw tsuas yog suav rau qhov me me hauv daim ntawv qhia zais cia, tab sis qhov yuav tsum tau ua kom raug tseem siab heev. Qhov no kuj tsis yooj yim sua kom ua tiav hauv kev simulation ib txwm muaj. peb. Daim ntawv thov ntawm cov khoom siv sib tov rotary thiab qhov cuam tshuam ntawm kev cia siab ntawm kev ua lag luam Vim tias kev ntsuas thiab kev txheeb xyuas ntawm Tuam Tshoj cov tshuab sib tov rotary tseem nyob hauv txoj kev ib txwm muaj, daim ntawv thov ntawm kev ntsuas qhov hnyav tsis muaj qhov hnyav hauv kev lag luam thiab kev txhawb nqa yuav dav heev. , Cov txheej txheem sib tov tas mus li ntawm bitumen muaj kev hloov pauv hloov pauv, thiab kev tswj hwm qhov tseeb ntawm cov ntaub ntawv ntws tuaj yeem tsim cov khoom sib tov zoo thiab zoo tagnrho.

Vim tias cov txheej txheem sib xyaw ua ke yooj yim hauv cov qauv thiab cov nqi kho qis, thaum cov khoom sib xyaw sib xyaw raug tswj hwm nruj me ntsis, nws yuav hloov qhov xwm txheej tam sim no ntawm kev sib xyaw ua ke qis hauv kev lag luam. Tshwj xeeb, cov tshuab thiab cov khoom siv uas ua rau muaj kev tsim khoom ntau ntxiv hauv kev tsim kho txoj kev thiab dej muaj qhov tseem ceeb zoo, thiab kev ntsuas qhov hnyav tsis hnyav yog qhov tseem ceeb los txhim kho qhov tseeb ntawm kev ntsuas.

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