Ivalve yombane kunye neenzuzo zevalve yepneumatic kunye nokungalunganga indlela yokulawula ivalve yepneumatic

Ivalve yombane kunye neenzuzo zevalve yepneumatic kunye nokungalunganga indlela yokulawula ivalve yepneumatic

Ubushushu bokusebenza bumisela ubushushu bendawo yesicelo sevalve, kwaye i-diameter yegama levalve imiselwe ngubushushu bokusebenza. Ngexabiso elibaliweyo leyunifomu yesivalo ukumisela udidi lwemithombo ye-torsion okanye intonga efanayo, kwaye ngoko ngokusetyenziswa kwemathiriyeli ukumisela ifomu yesakhiwo sevalve, kwaye ngoko ngokunyuka kwevalve yokuvuza komthamo ubale idiamitha yomqala wevalve.
Oku kulandelayo yimigaqo ngokubanzi yokukhethwa kwevalvu.
I-Valve actuators yombane isetyenziswa ngokubanzi kwizityalo zamandla okanye kwizityalo zebhetri yenyukliya, emva kwayo yonke loo nto, kwi-software ye-software ye-high-pressure gun idinga inkqubo egudileyo, ezinzileyo kwaye ecothayo. Inzuzo ebalulekileyo ye-activator yombane luzinzo oluphezulu kunye nokutyhalela okuzinzileyo anokusebenzisa umsebenzisi. I-thrust eveliswa yi-actuator enkulu kakhulu ingaba phezulu ukuya kuma-225000kgf. Kuphela yi-hydraulic actuator enokufikelela kwi-thrust enkulu, kodwa iindleko zobunjineli be-hydraulic actuator ziya kuba phezulu kakhulu kunombane. Inqanaba le-anti-offset ye-actuator yombane lihle kakhulu. I-output thrust okanye i-torque ngokusisiseko izinzile, enokuthi ikhuphe amandla angalinganiyo aphakathi kwaye ifezekise ulawulo oluchanekileyo lwesalathisi senkqubo. Ke ngoko, ukuchaneka kolawulo kuphezulu kunoko kwe-actuator yombane. Ukuba i-amplifier ye-servo isetyenzisiweyo, inokugqiba ngokulula ukutshintshiselana kwemiphumo emihle kunye nemiphumo emibi, kwaye iphinde ibeke ngokulula indawo yevalve yesignali yekhefu (gcina / ivule / ivale), kwaye iphoso kufuneka likhawulelwe kwimvelaphi, eyiyo. kwakhona engenziwanga yi-activator yombane, i-actuator yombane kufuneka ithembele kwisethi yenkqubo yokukhusela ukufezekisa ukukhuselwa kwendawo. Iziphene ze-actuator yombane ikakhulu zibandakanya ubume obuyinkimbinkimbi, kunokwenzeka ukuba kwenzeke iimpazamo eziqhelekileyo, kwaye ngenxa yokwahlukana kwayo, iimfuno zobugcisa zabasebenzi bokulondoloza ukwakhiwa ziya kuba phezulu; Ukusebenza kweemoto kufuneka kushushu, ukuba kulungiswe rhoqo, kulula ukubangela ukushisa kweemoto, okukhokelela ekukhuseleni ukufudumala, kodwa nokomeleza ukunxiba kwezixhobo zokunciphisa; Kukho kwakhona ukusebenza okucothayo, ukusuka kumlawuli okhupha umqondiso, ukulungelelanisa impendulo yevalve kunye nokuzilolonga kwindawo ehambelanayo, kufuneka ibe yithuba elide, oku kuthelekiswa nendawo ye-pneumatic, hydraulic actuator. Indlela yokulawula i-valve yombane we-actuator kunye nendlela yokuqhuba yinto edibeneyo, indlela yayo yokulawula inodidi lwefilimu yeplastiki okanye umatshini wepiston iindidi ezimbini.
Ilungiselelo lomatshini wepiston lide, lisebenza kubukho bendawo ethile yokuphoswa; Ilungiselelo le-membrane stroke lincinci, kwaye isihlalo kuphela sityhalwa ngokukhawuleza. Ngenxa yokuba i-actuator ye-pneumatic ineempawu ze-compact structure, i-output thrust enkulu, i-posture ezinzileyo kunye nethembekile, kunye nokhuseleko kunye nobungqina bokuqhuma, ezinye izicelo ekuveliseni izikhululo zamandla, izityalo zekhemikhali, iindawo zokucoca ioli kunye nezinye iimfuno eziphezulu zokhuseleko. Iimpawu eziphambili ze-actuator ye-pneumatic: yamkela isignali yedatha yegesi eqhubekayo, i-offset parallel line offset (izixhobo zokuguqula amandla / igesi, nazo zingamkela iimpawu ze-elektroniki eziqhubekayo), ezinye kunye nengalo, zinokukhupha i-angular velocity.
Kukho amandla akhuthazayo kunye neempendulo.
Isantya sokuhamba siphezulu, kodwa isantya siyancipha njengoko umthwalo ukhula.
Amandla emveliso anxulumene nobushushu bokusebenza.
Ukuthembeka okuphezulu, kodwa i-valve ayikwazi ukugcinwa emva kwekhefu lokugqibela le-valve ye-pneumatic (inokugcinwa emva kokongeza i-valve yokugcina).
Akulungele ukugqiba ulawulo lwecandelo kunye nolawulo lokuhamba.
Ukugcinwa lula, ukuziqhelanisa kakuhle nokusingqongileyo.
Imveliso Amandla emveliso makhulu.
Ngomsebenzi wokukhusela umlilo.
Indlela yokulawula ye-actuator yevalve ye-pneumatic kungenxa yokuba kukho iindlela ezininzi zokulawula kunye neendlela namhlanje. Kwimveliso ethile yemveliso kunye nolawulo lwemveliso yoshishino, iindlela ezisetyenziselwa ukulawula ii-actuator ze-pneumatic nazo zininzi kakhulu. Ezona ziqhelekileyo zezi zilandelayo.
Isixhobo sokubonisa esikrelekrele sisetyenziselwa ukubona imeko yokusebenza kwevalve, kunye nokulawula ixesha lesiqinisekiso sevalve yomsebenzi ofanelekileyo wesixhobo kunye nezixhobo, ikakhulu ngesivamvo senqanaba elimbini ukujonga imeko yokusebenza kwevalve, ukwahlula ivalve kwivalve evulekileyo. okanye ivalve evaliweyo, ngokwenkqubo ebhaliweyo irekhodi ivalve yokutshintsha idatha, Kwaye kukho iindlela ezimbini ezihambelana nevalve yokuvula i-4 ~ 20mA yemveliso kunye ne-bipedal ngokuqhelekileyo ivula uqhagamshelwano oluvaliweyo oluqhelekileyo.
Ngolu phawu lwedatha yesiphumo, indawo yokutshintsha amandla evalve yokulawula.
Ngokweemfuno zesoftware yenkqubo, isixhobo sokubonisa ivalve ekrelekrele sinokwahlulwa sibe ngamacandelo amathathu ukusuka kuyilo lwehardware kunye nemveliso: inxalenye yokulinganisa, inxalenye yedatha, isitshixo somsebenzi / inxalenye yesalathiso.
I-1, inxalenye yesekethe edibeneyo yedijithali ibandakanya ukutshintshwa kwamandla ombane, i-analog input power supply circuit, igalelo le-analog kunye ne-output power supply circuit circuits ezintathu.
Icandelo lonikezelo lombane lokutshintsha libonelela ngawo onke amandla esekethe kinetic yamandla, kubandakanywa iisekethe ezidityanisiweyo zedijithali, uyilo lwesekethe yedijithali kunye neemfuno zamandla ezibhaliweyo.
Ukuqaphela ulawulo olukude lokuvula ivalve, umxholo wolwazi lokuvula ivalve kufuneka udluliselwe kwenye ideshibhodi yolawulo, kwangaxeshanye ideshibhodi yolawulo inokuphuhliswa ukusuka kumgama wevalve yokuvula okuthile, isoftware yenkqubo kufuneka ibe yi-4 ~ 20mA. Isignali yedatha ye-analog kunye ne-1 ~ 2 4 ~ 20mA igalelo le-analog kunye nomqondiso wedatha yemveliso.
Isignali yedatha ye-analog iguqulwa ibe ngumqondiso we-analog ehambelana nokuvulwa kwevalve ngokwe-A / D kwaye emva koko inikezelwe kwinxalenye yedatha ye-single-chip microcomputer yoyilo, kwaye inokukhutshwa emva kokucoca ukusetyenzwa kwi-single-chip microcomputer. uyilo. Umxholo wolwazi wokuvula we-valve uguqulwa ube yi-Digital signal output ngokwe-D / A, esetyenziselwa ukudibanisa isixhobo sokubonisa ukubonisa ukuvulwa kwevalve okanye ukudibanisa ezinye iimatshini zokulawula kunye nezixhobo. Kwisixhobo soyilo, ulwazi lwedatha yedijithali nganye luthatha unxibelelwano olulandelelanayo lwendlela yemveliso yegalelo, ukuze kugcinwe izibonelelo zenethiwekhi ye-chip kunye nendawo, igalelo 4 ~ 20mA igalelo analog xa igalelo kwivolumu, i-4-channel ekhoyo. I-chip ye-DA yokulungisa i-chip kunye ne-51 microcontroller izibonelelo zeseva ezidibeneyo ngokusondeleyo kwi-8-bit yesicelo se-AD.
2. Inxalenye yoyilo lwesekethe yedijithali ikakhulu ibandakanya: uyilo lwe-microcomputer ye-single-chip, ukukhuselwa kokusilela kwamandla, ukubonwa kwetshaneli ephindwe kabini yesiginali yokufakwa kwe-pulse enye, i-double-channel idla ngokuvula isiphumo soqhagamshelwano soguqulo esivaliweyo.
Kuyilo lwenkqubo, i-AT89C4051 isetyenziswa ngokubanzi kweli nqanaba.
I-AT89C4051 yi-low-voltage, i-high-performance ye-CMOS8-bit microcontroller ene-4K byte enokucimeka, inkqubo ephindaphindwayo yombhali-ekhuselweyo ye-flash memory chip.
Ukuze udibanise i-multifunctional 8-bit CPU flash chip kwi-soc chip, kwiimpawu, imimiselo yomyalelo kunye nezikhonkwane kunye ne-80C51 kunye ne-80C52 zilungelelanisa ngokupheleleyo.
Kucatshangelwa ngokupheleleyo ukuba xa isixhobo sicinywa okanye siqalwa kwakhona, kuyafuneka ukuba kugcinwe iiparameters eziphambili zeevalvu ebezisetwe ngaphambili kwipaneli yesixhobo, kwaye inkumbulo kwi-single-chip microcomputer uyilo ayinawo umsebenzi wokucinywa kogcino. , ke itshiphu ye-X5045 enegunya lokucima umsebenzi wogcino yandiswa ngaphandle kwetshiphu.
I-X5045 yisekethe yamandla ecwangcisiweyo edibanisa i-watchdog 1, ukubeka iliso kwamandla kunye nonxibelelwano lwe-serial EEPROM. Olu hlobo loyilo oludibeneyo lunokunciphisa imfuno yesekethe yamandla kwibhodi yesekethe yendawo yangaphakathi. I-Watchdog 1 kwi-X5045 ibonelela ngokulondolozwa kwenkqubo. Umlindi we-1 kwibhodi yesekethe uya kuthatha isignali ye-RESET yedatha kwi-CPU.
I-X5045 izisa amaxabiso exesha amathathu ukuze umsebenzisi akhethe isicelo.
Inomsebenzi wokubeka iliso kwi-voltage esebenzayo inokukhusela inkqubo kwimpembelelo ye-voltage ephantsi, xa umbane wamandla uwela ngaphantsi koluhlu oluvumelekileyo, luya kulungelelaniswa ngokuzenzekelayo de umbane wamandla ubuyele kwixabiso elizinzile.
I-chip yememori ye-X5045 inokunxibelelana ne-CPU nge-port ye-serial.
Itotali yamagama angama-4069 angaboniswa kwi-512 x 8 bytes.
I-pin layout ye-X5045 iboniswe kuMfanekiso 1 ngezantsi. Inezikhonkwane ezi-8 zizonke, kwaye ukusebenza kwepini nganye kuboniswa ngolu hlobo lulandelayo: CS: khetha ukuphela kwesiphaluka samandla, i-frequency ephantsi yombane ephantsi; SO: i-terminal yemveliso yeserial yedatha; SI: i-terminal yokufaka idatha yothotho; SCK: unxibelelwano olulandelelanayo lwesiphelo sewotshi yedijithali; I-WP: igalelo lokukhusela lokubhala, ukuphindaphinda kwamandla aphantsi kunengqiqo; SETHA KWAKHONA: linganisa i-terminal yemveliso; I-Vcc: ukutshintsha i-terminal yonikezelo lwamandla; Vss: itheminali esezantsi.
I-INA yisignali yegalelo, eyisignali eyahlukileyo yevalve (10mA) eqokelelwe yinzwa ye-infrared. Isiginali yedatha ihluzwa yi-capacitor yokucoca kwaye emva koko ithunyelwe kwi-optocoupler, eguqulwa ibe ngumqondiso we-voltage ophumayo kwaye ithunyelwe kuyilo lwe-MCU.
I-voltage yemveliso ingaba ngqo kwi-I / O port eyilwe yi-microcomputer ye-chip enye. Ekulawuleni, kuphela xa zombini i-A kunye ne-B i-dual-channel-channel pulses ifunyenwe inokuqwalaselwa ukuba igalelo liphuma kwisignali yedatha, i-AB ijika i-positive kwaye i-BA ibuyele umva.
Musa ukubala xa isignali yedatha enye ichwetheziwe.
Vula kabini kwaye uvale, uvula kwaye uvale ngokuqhelekileyo utshintsho oluphumayo loqhagamshelwano.
Isetyenziselwa ukudibanisa iireyilayi, ngokuhambelana nevalve ye-solenoid yokulawula ukulawula i-actuator ye-pneumatic ye-valve ehambelanayo yokuvula okanye indawo yokuvala.
3. Inxalenye yokubonisa ngokukodwa ibandakanya: i-single-chip microcomputer design, i-4-bit ye-LED ibonisa, izibane zesimo se-3 (ozenzekelayo, phambili, umva), izitshixo ze-3 (i-MODE / SET isitshixo, isitshixo esiphezulu, isitshixo esisezantsi).
I-AT89C4051 enye i-microcomputer ye-chip isetyenziselwa ukulawula i-4-bit ye-LED ebonisa, kunye nonxibelelwano kunye nenxalenye yedatha yoyilo lwe-microcomputer ye-chip enye, kodwa kwakhona ukwenza ukhetho oluhambelanayo kunye nolawulo lomlawuli.
Isixhobo sokubonisa sinikezelwa ngezibane zesimo ezintathu ukubonisa isimo se-activator: ukujikeleza kwe-clockwise, ukuguqulwa, ngokuzenzekelayo; Amaqhosha omsebenzi amathathu: IMODE/ISETHI isitshixo, isitshixo esinyukayo, isitshixo esisezantsi, lawula indlela yokusebenza ye-actuator kunye nezinye iiparameters ukuseta kwakhona.
Ezi nxalenye ze-3 zixhunyiwe ngokutsho kwe-jack, zenza isofthiwe yenkqubo yokulawula epheleleyo, enokulawula ezinye iimpompo ze-pneumatic ezifanayo kunye nezinye ii-activators. Ekusetyenzisweni okusebenzayo, zonke iintlobo zeeparamitha zentsebenzo ye-pre-standard zigqityiwe ngokusisiseko.
(ezimbini) ukusetyenziswa kwe-PLC ukulawula isofthiwe kwi-software yenkqubo yokulawula ngakumbi nangaphezulu, kuba esi sicwangciso sokwenza uphuhliso kunye noyilo lwe-PLC ye-OMRON ngasentla, ngoko kwi-PLC ye-OMRON ukwenza isingeniso.
Ukucwangciswa kwe-Hardware: I-1 ikhompyutha, i-1 isethi ye-PLC (kubandakanywa ne-CPU, imodyuli yokulawula ye-I / O,> Umgaqo wayo wokubunjwa ngu: nge-PC ngokwe-RS-232 yonxibelelwano lwe-serial exhunywe kwi-OMRON PLC, ukwenza inkqubo kunye nokulawulwa kwe-PLC.
Imodyuli yokulawula ye-PLC I / O ngokulandelanayo ixhunywe kwigalelo, isignali yedatha yokuphuma, apho imodyuli yegalelo idluliselwa kwi-valve kwi-sensor yesigaba se-2, ngokwemodyuli ye-PLC yegalelo> ngokwe-PLC imodyuli yokulawula ukuphuma kwe-OC225 yokulawula i-solenoid ivelufa, ivalve ye-solenoid enamaqela ama-2 aqhele ukuvula unxibelelwano oluqhelekileyo oluvaliweyo, iqela eli-1 loqhagamshelwano lwevalve evulekileyo, iqela eli-1 lonxibelelwano lwevalve evaliweyo.
Xa uvula ivalve, xa ukuvulwa kwevalve inkulu okanye ilingana nexabiso elikhethekileyo lokumisa ivalve emva kokuvula indawo yokunxibelelana yevalve, ukuvulwa kwevalve kusezantsi kunexabiso elikhethekileyo lokumisa ivalve emva kokuvula indawo yokunxibelelana yevalve, dala ukuveliswa. yokuvula ulungelelwaniso loqhagamshelwano lwevalve emva kokuvula kungaphantsi kwexabiso elikhethekileyo lokubeka ivalve.
Xa uvala i-valve, xa i-valve ivaliwe kwindawo ye-zero kwaye akukho galelo elilodwa le-pulse ngaphakathi kwe-21s, i-valve output contact position ivaliwe; Ukuba kukho igalelo le-monopulse kwi-21s, libazise i-21s ngaphandle kwendawo yoqhagamshelwano yevalvu.
Ngokutsho kokufunxa kwe-valve ye-solenoid ukulawula ukutshintshwa kwamandla kwiivalve ezimbini ze-solenoid, i-relay ivuliwe, kwaye i-actuator ye-valve ye-pneumatic inokulawulwa ukukhuthaza i-valve ukwenza indawo ehambelanayo yokuvula okanye yokuvala.
Ngexesha elifanayo, ukusondela kwi-valve ye-valve yokutshintsha imeko idluliselwa kwi-PLC, kwaye xa kuthelekiswa nokuvula i-valve eqhelekileyo ide ihlangabezane neemfuno ze-cut-off.
I-zero epheleleyo ezenzekelayo kunye nokusetha okuzenzekelayo okuzenzekelayo: isofthiwe yenkqubo yokulawula inomsebenzi we-zero ngokuzenzekelayo kunye nokuseta okuzenzekelayo okuzenzekelayo. Xa ukuvulwa kwevalve kusezantsi kunokubuyiselwa kwixabiso loluhlu lwe-zero okanye umgama wokuvula ivalve ogcweleyo ungaphantsi kwexabiso elipheleleyo lohlengahlengiso, kwaye ixesha likhulu okanye lilingana nexabiso elibekiweyo lexabiso lexesha elizinzileyo, i-PLC ivelufa yolawulo oluzenzekelayo. ukwenza ukubuyisela ku-zero okanye useto oluzenzekelayo olupheleleyo.
Kumsebenzi wokulinga, ukuvulwa kwevalve kulinganiswa ngenzwa yesigaba kwivalve.
Xa ivalve ishiya isivamvo A kuqala kwaye emva koko isiva B, ibonisa ukuba ivelufa iyavala.
Xa ivalve ishiya isivamvo B kuqala kwaye emva koko isiva A, ibonisa ukuba ivalve ivuliwe.
I-sensor ifumana umqondiso wokuhluka, orekhoda isimo se-valve ngokwedatha yedatha eqokelelwe yi-sensor yesigaba. Inkqutyana ibhalwe yi-CX-programmer, isoftware yolawulo lwamanani, kwaye ikhutshelwe kwi-PLC ukuze isebenze. Inkqutyana ilawulwa kwaye ibekwe esweni kuqwalaselo lwesoftware yekhompyuter ephezulu. Isixa sokutshintsha kwamandla evalve sinokuchazwa ngexabiso lesangqa songeniso kwiphepha loqwalaselo.
Emva kokuba iphepha lesoftware yoqwalaselo ligqityiwe, iintshukumo zomzimba wolawulo lokuvula ivalve, ukuvala ivalve, ukuphelisa kunye nolawulo lwesango oluphambili lunokusebenza ngokuthe ngqo kujongano lwesoftware ngokucace kakhulu. Umgaqo we-actuator yevalufa ye-pneumatic isebenzisa igesi ecinezelweyo ukukhuthaza intshukumo ebuyelayo ye-pneumatic yamacandelo amaninzi kwi-activator, ixhasa iimpawu ze-bearing beam kunye ne-curve yangaphakathi kaloliwe, ikhuthaza intshukumo ejikelezayo yebheringi ephothiweyo, ihambisa idiskhi yegesi ecinezelweyo kumntu ngamnye. isilinda, itshintsha indawo yokungena yomoya kunye neendawo zokuphuma ukuze itshintshe indlela yentsimbi yokusonta, kwaye itshintshe indlela yentsimbi yokusonta ngokweemfuno zetorque yokujikeleza yomthwalo (ivalve). Iyakwazi ukulungelelanisa inani le-cylinder composition, tyhala umthwalo (i-valve) ekusebenzeni.
I-relay yeendlela ezimbini-yeendlela ezintlanu idla ngokusetyenziswa ngokudibanisa ne-double-effect pneumatic actuator, kwaye indawo-mbini iyalawuleka kumacandelo amabini: I-Open-off, i-five-way ineendlela zokhuseleko ezintlanu zotshintshiselwano lomoya, apho i-1 idityaniswe nayo. i-valve ye-pneumatic, i-2 idibaniswe ne-inlet kunye ne-outlet ye-internal brake room ye-cylinder esebenzayo kabini, kwaye i-2 iyaqhubeka kunye ne-inlet kunye nokuphuma kwesakhiwo sangaphakathi se-brake room. Umgaqo-nkqubo wangempela wokusebenza unokubhekiswa kumgaqo we-double effect pneumatic actuator.