Njengengxenye eyinhloko yeminye imishini ezenzakalelayo, ukuthembeka nokuzinza kohlelo lokulawula ukunyakaza kuthinta ngqo ukusebenza kwemishini, futhi esinye sezici eziyinhloko ezithinta ukuthembeka nokuzinza kwayo inkinga yokulwa nokuphazamiseka. Ngakho-ke, indlela yokuxazulula ngempumelelo inkinga yokuphazamiseka kuyinkinga engenakuzinakwa ekwakhiweni kohlelo lokulawula ukunyakaza.
1. Isenzakalo sokuphazamiseka
Esicelweni, kuvame ukuhlangana nezimo ezilandelayo zokuphazamiseka okukhulu:
1. Uma uhlelo lokulawula lungakhiphi umyalo, injini ijikeleza ngokungajwayelekile.
2. Lapho injini ye-servo iyeka ukuhamba futhi isilawuli sokunyakaza sifunda indawo yenjini, inani elibuyiselwa yi-encoder ye-photoelectric ekugcineni kwenjini ligxuma ngokungahleliwe.
3. Uma i-servo motor isebenza, inani lokufunda kwe-encoder alifani nenani lomyalo okhishiwe, futhi inani lephutha alihleliwe futhi alijwayelekile.
4. Uma i-servo motor isebenza, umehluko phakathi kwenani le-read encoder kanye nenani lomyalo elikhishiwe uyinani elizinzile noma elishintsha njalo.
5. Imishini ehlanganyela ugesi ofanayo nohlelo lwe-AC servo (njengesibonisi, njll.) ayisebenzi kahle.
2. Ukuhlaziywa komthombo wokuphazamiseka
Kunezinhlobo ezimbili eziyinhloko zeziteshi eziphazamisa ukungena ohlelweni lokulawula ukunyakaza:
1, ukuphazamiseka kwesiteshi sokudlulisa isignali, ukuphazamiseka kungena ngesiteshi sokufaka isignali kanye nesiteshi sokukhipha esixhunywe ohlelweni;
2, ukuphazamiseka kohlelo lokunikezwa kwamandla kagesi.
Isiteshi sokudlulisa isignali siyindlela uhlelo lokulawula noma umshayeli athola ngayo izimpawu zokuphendula futhi athumele izimpawu zokulawula, ngoba igagasi lokushaya kwenhliziyo lizobambezeleka futhi liphazanyiswe emgqeni wokudlulisa, ukuncishiswa kanye nokuphazamiseka kwesiteshi, enqubweni yokudlulisa, ukuphazamiseka kwesikhathi eside kuyisici esiyinhloko.
Kukhona ukumelana kwangaphakathi kunoma yimiphi imigqa yokunikezwa kwamandla kanye neyokudlulisa. Yilezi zindlela zokumelana kwangaphakathi ezibangela ukuphazamiseka komsindo kokunikezwa kwamandla. Uma kungekho ukumelana kwangaphakathi, kungakhathaliseki ukuthi hlobo luni lomsindo oluzomuncwa yi-short-circuit yokunikezwa kwamandla, akukho voltage yokuphazamiseka ezobekwa emgqeni. , umshayeli wesistimu ye-AC servo uqobo lwakhe ungumthombo onamandla wokuphazamiseka, angaphazamisa eminye imishini ngokunikezwa kwamandla.
Uhlelo Lokulawula Ukunyakaza
Izinyathelo ezintathu, zokulwa nokuphazamiseka
1. Umklamo wokulwa nokuphazamiseka kohlelo lokuphakelwa kukagesi
(1) Sebenzisa ukuphakelwa kukagesi ngamaqembu, isibonelo, hlukanisa amandla okushayela emoto namandla okulawula ukuze uvimbele ukuphazamiseka phakathi kwamadivayisi.
(2) Ukusetshenziswa kwezihlungi zomsindo kungaphinde kuvimbele ngempumelelo ukuphazamiseka kwama-AC servo drive kweminye imishini. Lesi sinyathelo singavimbela ngempumelelo izimo zokuphazamiseka okukhulunywe ngazo ngenhla.
(3) I-transformer yokuzihlukanisa iyamukelwa. Uma sibheka ukuthi umsindo wemvamisa ephezulu udlula ku-transformer hhayi ngokuhlanganiswa kwe-inductance okuhlangene kwama-coil ayinhloko nawesibili, kodwa ngokuhlanganiswa kwama-capacitance ayisisekelo nawesibili, izinhlangothi eziyinhloko nezesibili ze-transformer yokuzihlukanisa zihlukaniswa ngezendlalelo zokuvikela ukuze kuncishiswe amandla azo okusabalalisa ukuze kuthuthukiswe ikhono lokumelana nokuphazamiseka kwemodi evamile.
2. Umklamo wokulwa nokuphazamiseka kwesiteshi sokudlulisa isignali
(1) Izindlela zokuhlukanisa ukuhlanganiswa kwe-Photoelectric
Enkambisweni yokudlulisa ibanga elide, ukusetshenziswa kwama-photocouplers kunganqamula ukuxhumana phakathi kohlelo lokulawula kanye nesiteshi sokufaka, isiteshi sokukhipha, kanye neziteshi zokufaka nezokukhipha zedrayivu ye-servo. Uma ukuhlukaniswa kwe-photoelectric kungasetshenziswa kusekethe, isignali yokuphazamiseka kwe-spike yangaphandle izongena ohlelweni noma ingene ngqo kudivayisi yedrayivu ye-servo, okubangela ukuphazamiseka kokuqala.
Inzuzo eyinhloko yokuxhumanisa nge-photoelectric ukuthi ingacindezela ngempumelelo ama-spikes kanye nokuphazamiseka komsindo okuhlukahlukene,
Ngakho-ke, isilinganiso sesiginali kuya komsindo enqubweni yokudlulisa isignali sithuthuke kakhulu. Isizathu esiyinhloko yilesi: Nakuba umsindo wokuphazamiseka une-amplitude enkulu ye-voltage, amandla awo mancane futhi angakha kuphela i-current ebuthakathaka. I-diode ekhipha ukukhanya yengxenye yokufaka ye-photocoupler isebenza ngaphansi kwesimo samanje, kanti i-general conduction current ingu-10-15mA, ngakho-ke noma ngabe kukhona ukuphazamiseka kwe-amplitude ephezulu, iyacindezelwa ngoba ayikwazi ukunikeza i-current eyanele.
(2) Intambo evikelwe ngamabili asontekile kanye ne-transmission yentambo ende
Isignali izothintwa yizici zokuphazamiseka njengensimu kagesi, insimu yamagnetic kanye ne-ground impedance ngesikhathi sokudlulisa. Ukusetshenziswa kocingo lokuvikela olusekelwe phansi kunganciphisa ukuphazamiseka kwensimu kagesi.
Uma kuqhathaniswa nekhebula le-coaxial, ikhebula le-twisted-pair linebhendi yemvamisa ephansi, kodwa linokumelana kwamagagasi aphezulu kanye nokumelana okunamandla nomsindo wemodi evamile, okungakhansela ukuphazamiseka kokufakwa kwe-electromagnetic komunye nomunye.
Ngaphezu kwalokho, enkambisweni yokudlulisa ibanga elide, ukudlulisa isignali yokuhlukanisa kuvame ukusetshenziselwa ukuthuthukisa ukusebenza kokulwa nokuphazamiseka. Ukusetshenziswa kocingo oluvikelwe oluphindwe kabili lokudlulisa ucingo olude kungacindezela ngempumelelo isenzakalo sokuphazamiseka kwesibili, sesithathu, nesesine.
(3) Phansi
Ukubeka phansi kungasusa i-voltage yomsindo ekhiqizwayo lapho amandla kagesi egeleza ngentambo yomhlabathi. Ngaphezu kokuxhuma uhlelo lwe-servo phansi, intambo yokuvikela isignali kufanele futhi ifakwe phansi ukuze kuvinjelwe ukungeniswa kwe-electrostatic kanye nokuphazamiseka kwe-electromagnetic. Uma ingafakwanga phansi kahle, kungenzeka ukuthi kwenzeke ukuphazamiseka kwesibili.
Isikhathi sokuthunyelwe: Mashi-06-2021