1, Chii chinonzi encoder
Munguva yekushanda kweGiya rebhokisi rehonye N20 DC mota, ma parameter akadai se current, speed uye relative position ye circular circular shaft inotenderera anotariswa munguva chaiyo kuti aone mamiriro emota nemidziyo iri kudhonzwa, uye zvakare kudzora mashandiro emota nemidziyo munguva chaiyo, nokudaro zvichiita mabasa akawanda akadai se servo uye speed regulation. Pano, kushandiswa kwe encoder sechinhu chekuyera chemberi hakungorerutsi chete system yekuyera, asiwo kwakarurama, kwakavimbika uye kune simba. Encoder i rotary sensor inoshandura huwandu hwenzvimbo uye displacement yezvikamu zvinotenderera kuita nhevedzano ye digital pulse signals, iyo inounganidzwa uye inogadziriswa ne control system kuti ibudise nhevedzano yemirairo yekugadzirisa nekushandura mamiriro ekushanda kwemuchina. Kana encoder ikabatanidzwa ne gear bar kana screw screw, inogonawo kushandiswa kuyera nzvimbo uye displacement ye linear moving parts.
2, kupatsanura encoder
Kupatsanura zvinhu zvekutanga zveEncoder:
Encoder imusanganiswa wekanika uye wemagetsi wechinhu chekuyera zvakarurama, chiratidzo kana data zvichanyorwa, kushandurwa, kwekutaurirana, kutumira uye kuchengetwa kwedata rechiratidzo. Zvichienderana nehunhu hwakasiyana, encoders dzakarongwa seizvi:
● Dhisiki rekodhi uye chiyero chekodhi. Chinoshandura kuchinjika kwemutsetse kuita chiratidzo chemagetsi chinonzi chiyero chekodhi, uye chinoshandura kuchinjika kwekona kuita kutaurirana idhisiki rekodhi.
● Maencoder ekuwedzera. Anopa ruzivo rwakadai senzvimbo, kona uye nhamba yekutendeuka, uye anotsanangura mwero wekurova kwemoyo zvichienderana nenhamba yekurova kwemoyo pakudzoka kwemoyo.
● Absolute encoder. Inopa ruzivo rwakadai senzvimbo, kona, uye nhamba yekutenderera mukuwedzera kwe angular, uye kuwedzera kwe angular kwega kwega kunopihwa kodhi yakasiyana.
● Hybrid absolute encoder. Hybrid absolute encoder inoburitsa maseti maviri eruzivo: seti imwe yeruzivo inoshandiswa kuona nzvimbo yepole ine basa re absolute information, uye imwe seti yakafanana chaizvo neruzivo rwekubuda kwe incremental encoder.
MaEncoders anowanzoshandiswa mumota:
●Incremental encoder
Kushandisa zvakananga musimboti wekuchinja kwemagetsi (photoelectric conversion principle) kuti ubudise maseti matatu ema square wave pulses A, B na Z. Musiyano wechikamu pakati pemaseti maviri ema pulses A na B i90o, kuitira kuti divi rekutenderera rionekwe zviri nyore; chikamu cheZ ipulse imwe chete pakuchinja uye chinoshandiswa pakuisa nzvimbo yekutarisa. Zvakanakira: kuvaka musimboti uri nyore, hupenyu hwema mechanical hunogona kudarika makumi ezviuru zvemaawa, kugona kwakasimba kwekudzivirira kupindira, kuvimbika kwakanyanya, uye kwakakodzera kutumira kure kure. Zvakashata: kusakwanisa kuburitsa ruzivo rwenzvimbo yakakwana yekutenderera kweshaft.
● Muchina wekunyora kodhi zvachose
Kune nzira dzakawanda dzekodhi dzakatenderedzwa dziri pedyo nerutivi rwe radial pa denderedzwa rekodhi re sensor, uye chiteshi chimwe nechimwe chine zvikamu zvinotumira chiedza nezvisiri zvechiedza, uye huwandu hwezvikamu zvematanho ekodhi ari pedyo hwakapetwa kaviri, uye huwandu hwematanho ekodhi pa kodhi inhamba yemadijiti maviri. Kana kodhi iri munzvimbo dzakasiyana, chinhu chimwe nechimwe chinonzwa chiedza chinoshandurwa kuita chiratidzo che level chinoenderana nechiedza kana kwete, zvichigadzira nhamba ye binary.
Rudzi urwu rwe encoder runoratidzwa nekuti hapana chinodiwa counter uye kodhi yedhijitari yakatarwa inoenderana nenzvimbo inogona kuverengwa chero panzvimbo ye rotary axis. Zviri pachena kuti, kana ma code channels akawanda, resolution yacho inowedzera, uye kune encoder ine N-bit binary resolution, kodhi disk inofanira kunge iine N code channels. Parizvino, kune zvigadzirwa zve 16-bit absolute encoder muChina.
3, musimboti wekushanda kwe encoder
Nedhisiki rekodhi yemagetsi ine axis pakati, pane mitsara yedenderedzwa uye yemavara matema pamusoro payo, uye kune michina yemagetsi inotumira nekugamuchira masaini emagetsi kuti iverenge, uye mapoka mana ezviratidzo zvemagetsi zvinosanganiswa kuita A, B, C naD. Wave yega yega yemagetsi inosiyana nemusiyano wechikamu che90 degrees (360 degrees zvichienzaniswa newave yakatenderera), uye zviratidzo zveC naD zvinodzoserwa shure uye zvinoiswa pamusoro pezvikamu zveA naB, izvo zvinogona kuwedzera chiratidzo chakagadzikana; uye imwe Z phase pulse inobuda pakuchinja kwega kwega kuti imiririre nzvimbo yekutarisa yezero position.
Sezvo zvikamu zviviri A neB zvakasiyana nemadhigirii makumi mapfumbamwe, zvinogona kuenzaniswa kana chikamu A chiri pamberi kana chikamu B chiri pamberi kuti chione kutenderera kwemberi nekumashure kwe encoder, uye zero reference bit ye encoder inogona kuwanikwa kuburikidza ne zero pulse. Zvinhu zve encoder code plate zvinosanganisira girazi, simbi, purasitiki, girazi code plate rakaiswa pagirazi rakatetepa rakavezwa, kugadzikana kwaro kwekupisa kwakanaka, kwakanyatsojeka, simbi code plate yakananga kupfuura kwete mutsetse wakavezwa, kwete kuputsika, asi nekuti simbi ine ukobvu hwakati, kururama kwayo kwakaganhurirwa, kugadzikana kwayo kwekupisa kwakaipa kupfuura girazi, purasitiki code plate inodhura, mutengo wayo wakaderera, asi kururama, kugadzikana kwekupisa, hupenyu hwakaderera.
Resolution - encoder yekupa kuti mitsetse mingani yakavezwa kuburikidza kana yakasviba pa360 degrees yekutenderera inonzi resolution, inozivikanwawo se resolution indexing, kana zvakananga kuti mitsetse mingani, kazhinji mu5 ~ 10000 mitsetse pa revolution indexing.
4, Kuyera nzvimbo uye pfungwa yekudzora mhinduro
Ma encoders ane chinzvimbo chakakosha zvikuru muma elevator, maturusi emuchina, kugadzirisa zvinhu, masisitimu emhinduro dzemota, pamwe chete nemidziyo yekuyera nekudzora. Encoder inoshandisa grating uye sosi yechiedza che infrared kushandura chiratidzo che optical kuita chiratidzo chemagetsi cheTTL (HTL) kuburikidza ne receiver. Nekuongorora frequency ye level yeTTL uye huwandu hwemazinga akakwira, kona yekutenderera nenzvimbo yekutenderera yemota zvinoratidzwa nemaziso.
Sezvo kona nenzvimbo zvichigona kuyerwa nemazvo, encoder ne inverter zvinogona kugadzirwa kuita closed-loop control system kuti control ive yakanyatsojeka, ndosaka elevator, maturusi emuchina, nezvimwewo zvichigona kushandiswa nemazvo.
5, Pfupiso
Muchidimbu, tinonzwisisa kuti ma encoders akakamurwa kuita incremental uye absolute zvichienderana nechimiro chawo, uye ese ari maviri anoshandura mamwe ma signals, akadai se optical signals, kuita ma electrical signals anogona kuongororwa nekudzorwa. Ma elevator akajairika nema machine tools muhupenyu hwedu akavakirwa pakugadziriswa kwakarurama kwemota, uye kuburikidza nekudzora kwe feedback closed-loop kwe electrical signal, encoder ine inverter inzira yechisikigo yekuwana control chaiyo.
Nguva yekutumira: Chikunguru-20-2023