Ukubetha okungaphandle kwenyathelo kufanele kube yi-pulse ephosiweyo, ayihambi iye kwindawo echaziweyo. Ukubetha okungaphezulu kufanele kube yinto echaseneyo nokungaphambuki kwenyathelo, kudlulele ngaphaya kwendawo echaziweyo.
Iimoto ze-stepperZisetyenziswa rhoqo kwiinkqubo zokulawula intshukumo apho ulawulo lulula okanye apho kufuneka khona ixabiso eliphantsi. Eyona nzuzo inkulu kukuba indawo kunye nesantya zilawulwa ngendlela evulekileyo. Kodwa kuba kanye lulawulo oluvulekileyo, indawo yomthwalo ayinampendulo kwi-loop yolawulo, kwaye i-stepper motor kufuneka iphendule ngokuchanekileyo kutshintsho ngalunye lokuvuthela. Ukuba i-frequency yokuvuthela ayikhethwanga ngokuchanekileyo, i-stepper motor ayizukukwazi ukufudukela kwindawo entsha. Indawo yokwenyani yomthwalo ibonakala ngathi inempazamo engapheliyo xa ithelekiswa nendawo elindelwe ngumlawuli, oko kukuthi, into engaphaya kwenyathelo okanye ukudubula ngaphezulu iyacingelwa. Ke ngoko, kwinkqubo yokulawula i-stepper motor evulekileyo, indlela yokuthintela ukulahleka kwe-step kunye nokudubula ngaphezulu sisitshixo sokusebenza okuqhelekileyo kwenkqubo yokulawula i-open-loop.
Iziganeko ezingaqhelekanga nezigqithisileyo zenzeka xaimoto ye-stepperiqala kwaye iyema, ngokulandelelana. Ngokubanzi, umda wokuqalisa kwesantya senkqubo uphantsi, ngelixa isantya sokusebenza esifunekayo sidla ngokuba phezulu. Ukuba inkqubo iqaliswe ngqo kwisantya sokusebenza esifunekayo, kuba isantya sidlule umda, isantya sokuqala kwaye asinakuqaliswa ngokufanelekileyo, ukuqala ngenyathelo elilahlekileyo, ubunzima abunakuqala konke konke, nto leyo ebangela ukujikeleza okuvaliweyo. Emva kokuba inkqubo isebenza, ukuba indawo yokugqibela ifikelelwe ngoko nangoko yeka ukuthumela iipulses, ukuze ime ngoko nangoko, ngenxa yokungabi namandla kwenkqubo, i-stepper motor iya kujika indawo yokulinganisela efunwa ngumlawuli.
Ukuze woyise isiganeko sokuphuma kwinyathelo kunye nokugqithisa, kufuneka kongezwe kulawulo lokukhawulezisa kunye nokuthomalalisa olufanelekileyo lokuqalisa nokumisa. Sisebenzisa ngokubanzi: ikhadi lokulawula intshukumo yeyunithi yolawulo oluphezulu, i-PLC enomsebenzi wokulawula yeyunithi yolawulo oluphezulu, i-microcontroller yeyunithi yolawulo oluphezulu yokulawula ukukhawulezisa kunye nokuthomalalisa intshukumo inokoyisa isiganeko sokuthomalalisa inyathelo elilahlekileyo.
Ngokwemigaqo yabantu abaqhelekileyo: xa umqhubi we-stepper efumana isignali ye-pulse, uqhubaimoto ye-stepperukujika i-engile esisigxina (kunye ne-engile yenyathelo) kwicala elimiselweyo. Ungalawula inani lee-pulses ukulawula ubungakanani bokuhamba kwe-angular, ukuze ufezekise injongo yokuma ngokuchanekileyo; kwangaxeshanye, ungalawula i-pulse frequency ukulawula isantya kunye nokukhawulezisa kokujikeleza kwe-motor, ukuze ufezekise injongo yokulawula isantya. I-Stepper motor ine-parameter yobugcisa: i-no-load start frequency, oko kukuthi, i-stepper motor kwimeko ye-no-load pulse frequency inokuqala ngokuqhelekileyo. Ukuba i-pulse frequency iphezulu kune-no-load start frequency, i-stepper motor ayinakuqala ngokufanelekileyo, inokwenzeka ukuba ilahle amanyathelo okanye ithintele into. Kwimeko yomthwalo, i-start frequency kufuneka ibe phantsi. Ukuba i-motor izakujikeleza ngesantya esiphezulu, i-pulse frequency kufuneka ibe nenkqubo yokukhawulezisa efanelekileyo, oko kukuthi, i-start frequency iphantsi kwaye emva koko inyuke iye kwi-high frequency oyifunayo kwi-acceleration ethile (isantya se-motor siyanyuka ukusuka kwisantya esiphantsi ukuya kwisantya esiphezulu).
Isantya sokuqala = isantya sokuqala × ukuba zingaphi amanyathelo ngokujikeleza ngakunye.Isantya sokuqala esingenamthwalo yimoto ye-stepper ngaphandle kokukhawulezisa okanye ukucothisa ngaphandle komthwalo ojikelezayo ngokuthe ngqo phezulu. Xa imoto ye-stepper ijikeleza, ukuhanjiswa kwesigaba ngasinye sokujika kwemoto kuya kwenza amandla ombane angasemva; okukhona i-frequency iphezulu, kokukhona amandla ombane angasemva aphezulu. Phantsi kwesenzo sayo, imoto ene-frequency (okanye isantya) iyanda kwaye umsinga wesigaba uyancipha, nto leyo ekhokelela ekunciphiseni i-torque.
Masithi: i-torque iyonke ye-reducer yi-T1, isantya se-output yi-N1, umlinganiselo wokunciphisa yi-5:1, kwaye i-angle yokunyathela ye-stepper motor yi-A. Emva koko isantya se-motor yi: 5*(N1), emva koko i-torque ye-output ye-motor kufuneka ibe yi-(T1)/5, kwaye i-frequency yokusebenza ye-motor kufuneka ibe yi-
5*(N1)*360/A, ngoko ke kufuneka ujonge i-moment-frequency characteristic curve: i-coordinate point [(T1)/5, 5*(N1)*360/A] ayikho ngaphantsi kwe-frequency characteristic curve (i-starting moment-frequency curve). Ukuba ingaphantsi kwe-moment-frequency curve, ungakhetha le moto. Ukuba ingaphezulu kwe-moment-frequency curve, ngoko ke, awunakukhetha le moto kuba iya kuphoswa yi-step, okanye ingajiki kwaphela.
Ngaba umisela imeko yokusebenza, udinga isantya esiphezulu esimiselweyo, ukuba umiselwe, ungabala ngokwefomula enikiweyo apha ngasentla, (ngokusekwe kwisantya esiphezulu sokujikeleza, kunye nobukhulu bomthwalo, ungamisela ukuba ngaba i-stepper motor oyikhethayo ngoku ifanelekile na, ukuba akunjalo kufuneka wazi nokuba loluphi uhlobo lwe-stepper motor oza kukhetha).
Ukongeza, i-stepper motor ekuqaleni emva komthwalo ayinakutshintshwa, ize inyuse i-frequency, kubaimoto ye-stepperIjika le-frequency lomzuzu kufuneka libe neembini, kufuneka ube yijika le-frequency lomzuzu wokuqala, kwaye elinye lingaphandle kwejika le-frequency lomzuzu, eli jika limele intsingiselo ye: qala i-motor kwi-frequency yokuqalisa, emva kokugqitywa kokuqala kunokunyusa umthwalo, kodwa i-motor ayizukulahlekelwa yimeko yenyathelo; okanye Qala i-motor kwi-frequency yokuqalisa, kwimeko yomthwalo oqhubekayo, unganyusa ngokufanelekileyo isantya sokusebenza, kodwa i-motor ayizukulahlekelwa yimeko yenyathelo.
Oku kungasentla kukungeniswa kwe-stepper motor ephuma ngaphandle kwenyathelo kunye ne-overshoot.
Ukuba ufuna ukunxibelelana nokusebenzisana nathi, nceda uzive ukhululekile ukuqhagamshelana nathi!
Sisebenzisana ngokusondeleyo nabathengi bethu, simamela iimfuno zabo kwaye silandela izicelo zabo. Sikholelwa ukuba intsebenziswano phakathi kwabo bonke isekelwe kumgangatho wemveliso kunye nenkonzo yabathengi.
Ixesha lokuthumela: Epreli-03-2023