Njengenxalenye ephambili yezixhobo ezithile ezizenzekelayo, ukuthembeka nokuzinza kwenkqubo yolawulo lokuhamba kuchaphazela ngokuthe ngqo ukusebenza kwezixhobo, kwaye enye yezinto eziphambili ezichaphazela ukuthembeka nokuzinza kwazo yingxaki yokulwa nokuphazamiseka. Ke ngoko, indlela yokusombulula ngempumelelo ingxaki yokuphazamiseka yingxaki engenakuyekiswa kuyilo lwenkqubo yolawulo lokuhamba.
1. Ingxaki yokuphazamiseka
Kwisicelo, ezi zinto zilandelayo ziphambili zokuphazamiseka zihlala zidibana nazo:
1. Xa inkqubo yokulawula ingawukhuphi umyalelo, injini ijikeleza ngendlela engaqhelekanga.
2. Xa i-servo motor iyeka ukuhamba kwaye isilawuli sokuhamba sifunda indawo yemoto, ixabiso elibuyiselwa yi-photoelectric encoder ekupheleni kwemoto litsiba ngokungacwangciswanga.
3. Xa i-servo motor isebenza, ixabiso le-encoder read alifani nexabiso lomyalelo okhutshiweyo, kwaye ixabiso lempazamo alicwangciswanga kwaye aliqhelekanga.
4. Xa i-servo motor isebenza, umahluko phakathi kwexabiso le-read encoder kunye nexabiso lomyalelo elikhutshiweyo lixabiso elizinzileyo okanye litshintsha rhoqo.
5. Izixhobo ezisebenzisa umbane ofanayo nenkqubo ye-AC servo (efana nesikrini, njl.njl.) azisebenzi kakuhle.
2. Uhlalutyo lwemithombo yokuphazamiseka
Kukho iintlobo ezimbini eziphambili zeetshaneli eziphazamisana nokungena kwenkqubo yokulawula intshukumo:
1, ukuphazamiseka kwesiteshi sokuhambisa isignali, ukuphazamiseka kungena ngesiteshi sokufaka isignali kunye nesiteshi sokukhupha esiqhagamshelwe kwinkqubo;
2, ukuphazamiseka kwenkqubo yombane.
Itshaneli yokudlulisa isignali yindlela inkqubo yolawulo okanye umqhubi afumana ngayo imiqondiso yempendulo aze athumele imiqondiso yolawulo, kuba igagasi lokubetha kwentliziyo liya kulibaziseka kwaye liphazanyiswe kumgca wokudlulisa, ukuncitshiswa kunye nokuphazamiseka kwetshaneli, kwinkqubo yokudlulisa, ukuphazamiseka kwexesha elide yeyona nto iphambili.
Kukho ukumelana kwangaphakathi kuyo nayiphi na imigca yombane kunye nothumelo. Zizo ukumelana kwangaphakathi ezibangela ukuphazamiseka kwengxolo kombane. Ukuba akukho ukumelana kwangaphakathi, nokuba loluphi uhlobo lwengxolo oluza kutsalwa yi-short-circuit yombane, akukho voltage yokuphazamiseka iya kusekwa kumgca. , Umqhubi wenkqubo ye-AC servo ngokwakhe ukwangumthombo onamandla wokuphazamiseka, unokuphazamisana nezinye izixhobo ngombane.
Inkqubo yoLawulo lweNtshukumo
Amanyathelo amathathu, okulwa nokuphazamiseka
1. Uyilo oluchasene nokuphazamiseka kwenkqubo yombane
(1) Sebenzisa umbane ngokwamaqela, umzekelo, wahlukanise amandla okuqhuba emoto kumandla olawulo ukuthintela ukuphazamiseka phakathi kwezixhobo.
(2) Ukusetyenziswa kwezihluzi zengxolo kunokuthintela ngempumelelo ukuphazamiseka kwee-AC servo drives kwezinye izixhobo. Le ndlela inokuyithintela ngempumelelo le micimbi yokuphazamiseka ekhankanyiweyo apha ngasentla.
(3) I-transformer yokwahlukanisa iyamkelwa. Xa kujongwa ukuba ingxolo ephezulu idlula kwi-transformer ikakhulu kungekuko ngokudityaniswa kwe-inductance efanayo kwee-coils eziphambili nezesibini, kodwa ngokudityaniswa kwe-capacitances eziphambili nezesibini ze-parasitic, amacala aphambili nawesibini e-transformer yokwahlukanisa ahlukaniswe ngamaleya okukhusela ukunciphisa i-capacitance yazo eDistributed ukuphucula amandla okumelana nokuphazamiseka kwendlela eqhelekileyo.
2. Uyilo oluchasene nokuphazamiseka kwesiteshi sokuhambisa isignali
(1) Amanyathelo okwahlulahlula uqhagamshelo lwe-Photoelectric
Kwinkqubo yokudlulisa umgama omde, ukusetyenziswa kwee-photocouplers kunokuphelisa unxibelelwano phakathi kwenkqubo yolawulo kunye netshaneli yokufaka, itshaneli yokuphuma, kunye neendlela zokufaka kunye nezokuphuma ze-servo drive. Ukuba ukuhlukaniswa kwe-photoelectric akusetyenziswanga kwisekethe, isignali yokuphazamiseka kwe-spike yangaphandle iya kungena kwinkqubo okanye ingene ngqo kwisixhobo se-servo drive, nto leyo ebangela uphazamiseko lokuqala.
Eyona nzuzo iphambili yokudibanisa i-photoelectric kukuba inokucinezela ngempumelelo ii-spikes kunye nokuphazamiseka kwengxolo eyahlukeneyo,
Ngoko ke, umlinganiselo wesignali-kwingxolo kwinkqubo yokudlulisa isignali uphuculwe kakhulu. Isizathu esiphambili sesi: Nangona ingxolo yokuphazamiseka ine-amplitude enkulu ye-voltage, amandla ayo mancinci kwaye inokwenza kuphela umsinga obuthathaka. I-diode ekhupha ukukhanya yenxalenye yokufaka ye-photocoupler isebenza phantsi kwemeko yangoku, kwaye umsinga oqhelekileyo wokuqhuba yi-10-15mA, ngoko ke nokuba kukho ukuphazamiseka okuphezulu kwe-amplitude, iyacinezelwa kuba ayinakubonelela ngomsinga owaneleyo.
(2) Intambo ekhuselweyo ejikelezileyo kunye nentambo ende yokudlulisela
Isignali iya kuchatshazelwa zizinto eziphazamisayo ezifana nentsimi yombane, intsimi yemagnethi kunye nokungangeni komhlaba ngexesha lokudluliselwa. Ukusetyenziswa kwentambo yokukhusela engaphantsi komhlaba kunokunciphisa ukuphazamiseka kwentsimi yombane.
Xa kuthelekiswa nentambo ye-coaxial, intambo ye-twisted-pair inebhendi ye-frequency ephantsi, kodwa ine-high wave impedance kunye nokumelana okunamandla kwingxolo yemo eqhelekileyo, enokurhoxisa ukuphazamiseka kwe-electromagnetic induction yomnye nomnye.
Ukongeza, kwinkqubo yokudlulisa umgama omde, ukudlulisa isignali yomahluko kudla ngokusetyenziswa ukuphucula ukusebenza kokuchasana nokuphazamiseka. Ukusetyenziswa kwentambo ejijekileyo ekhuselweyo yokudlulisa umbane omde kunokuthintela ngempumelelo ukuphazamiseka kwesibini, okwesithathu, nokwesine.
(3) Emhlabeni
Ukumisa umhlaba kungasusa i-voltage yengxolo eveliswayo xa umsinga udlula kwintambo yomhlaba. Ukongeza ekudibaniseni inkqubo ye-servo nomhlaba, intambo yokukhusela isignali kufuneka imiswe umhlaba ukuze kuthintelwe ukufakelwa kwe-electrostatic kunye nokuphazamiseka kwe-electromagnetic. Ukuba ayimiswanga kakuhle, isiganeko sesibini sokuphazamiseka sinokwenzeka.
Ixesha lokuthumela: Matshi-06-2021