Kutentha m'badwo mfundo yastepper mota.
1, nthawi zambiri amawona mitundu yonse ya ma mota, mkati mwake ndi pachimake chachitsulo ndi ma coil okhotakhota.Kuthamanga kumakhala ndi kukana, kulimbitsa mphamvu kumatulutsa kutayika, kukula kwa kutayika kuli kofanana ndi bwalo la kukana ndi panopa, zomwe nthawi zambiri zimatchedwa kutayika kwa mkuwa, ngati panopa sizomwe zimayendera DC kapena sine wave, zidzatulutsanso kuwonongeka kwa harmonic; pachimake ali hysteresis eddy panopa zotsatira, mu alternating maginito kutulutsanso kutayika, kukula kwake ndi zakuthupi, panopa, pafupipafupi, voteji, amene amatchedwa chitsulo imfa. Kutayika kwa mkuwa ndi kutayika kwachitsulo kudzawonetsedwa mu mawonekedwe a kutentha, motero kumakhudza mphamvu ya galimoto. Ma Stepper motors nthawi zambiri amatsata kulondola kwa malo komanso kutulutsa kwa torque, kuchita bwino kumakhala kotsika, komwe kumakhala kokulirapo, komanso zigawo zazikulu zolumikizirana, ma frequency amasinthidwe apano amasiyananso ndi liwiro, motero ma stepper motors nthawi zambiri amakhala ndi kutentha, ndipo zinthu ndizovuta kwambiri kuposa ma mota wamba a AC.
2, mtundu wololera wastepper motakutentha.
Njinga kutentha analola kuti, makamaka zimadalira pa galimoto mkati kutchinjiriza mlingo. Kutentha kwamkati mkati kumatentha kwambiri (madigiri 130 kapena kupitilira apo) musanawonongeke. Choncho malinga ngati mkati si upambana madigiri 130, galimoto sadzataya mphete, ndi kutentha pamwamba adzakhala pansi madigiri 90 pa nthawi ino.
Choncho, kutentha kwa stepper motor pamwamba pa madigiri 70-80 ndi abwinobwino. Njira yosavuta yoyezera kutentha kwa thermometer yothandiza, mutha kudziwanso kuti: ndi dzanja mutha kukhudza masekondi opitilira 1-2, osapitilira madigiri 60; ndi dzanja likhoza kukhudza, pafupifupi madigiri 70-80; madontho ochepa a madzi mwamsanga vaporized, ndi oposa 90 madigiri.
3, stepper motakutentha ndi kusintha kwa liwiro.
Mukamagwiritsa ntchito ukadaulo wamakono wamagalimoto, ma stepper motors pamayendedwe okhazikika komanso otsika, omwe amakhalapo nthawi zonse kuti azikhala ndi torque nthawi zonse. Liwiro likakhala lalitali mpaka pamlingo wina, mphamvu yamkati ya injiniyo imakwera, yapano imatsika pang'onopang'ono, ndipo torque nayonso imatsika.
Choncho, kutentha kwa kutentha chifukwa cha kutaya kwa mkuwa kudzadalira mofulumira. Liwiro lokhazikika komanso lotsika nthawi zambiri limatulutsa kutentha kwakukulu, pomwe kuthamanga kumatulutsa kutentha kochepa. Koma kutayika kwachitsulo (ngakhale gawo laling'ono) kusintha sikuli kofanana, ndipo galimoto yonse kutentha ndi chiwerengero cha ziwirizi, kotero zomwe zili pamwambazi ndizochitika zokhazokha.
4, mphamvu ya kutentha.
Ngakhale kutentha kwa injini nthawi zambiri sikukhudza moyo wagalimoto, makasitomala ambiri safunikira kulabadira. Koma kwambiri adzabweretsa zotsatira zoipa. Monga ma coefficients osiyanasiyana a kukula kwa matenthedwe amtundu wamkati wagalimoto amatsogolera kusintha kwa kupsinjika kwamapangidwe ndi kusintha kwakung'ono kwa mpweya wamkati wamkati, kukhudza kuyankha kwamphamvu kwagalimoto, kuthamanga kwambiri kudzakhala kosavuta kutaya sitepe. Chitsanzo china ndi chakuti nthawi zina sizimalola kutentha kwakukulu kwa galimoto, monga zida zachipatala ndi zida zoyesera zolondola kwambiri, ndi zina zotero. Choncho, kutentha kwa galimoto kuyenera kukhala koyenera kuti kuwongolera.
5, momwe mungachepetse kutentha kwa injini.
Kuchepetsa kutentha m'badwo, ndi kuchepetsa mkuwa imfa ndi chitsulo imfa. Chepetsani kutayika kwa mkuwa m'njira ziwiri, kuchepetsa kukana ndi zamakono, zomwe zimafuna kusankha kukana kwazing'ono ndi kuvoteredwa panopa kwa galimoto momwe zingathere, injini yamagulu awiri, galimotoyo ingagwiritsidwe ntchito mndandanda popanda injini yofanana. Koma izi nthawi zambiri zimatsutsana ndi zofunikira za torque ndi liwiro lalikulu. Kwa injini yosankhidwa, ntchito yoyendetsa yokhayokha yomwe imayendetsa theka-panopa ndi ntchito yapaintaneti iyenera kugwiritsidwa ntchito mokwanira, yoyambayo imangodzichepetsera yokhayo injini ikapuma, ndipo yomalizayo imangodula magetsi.
Kuphatikiza apo, kuyendetsa magawo, chifukwa mawonekedwe apano ali pafupi ndi sinusoidal, ma harmonics ochepa, kutentha kwagalimoto kudzakhalanso kochepa. Pali njira zingapo zochepetsera kutayika kwachitsulo, ndipo kuchuluka kwamagetsi kumakhudzana ndi izi. Ngakhale mota yoyendetsedwa ndi voteji yayikulu imabweretsa kuwonjezeka kwa mawonekedwe othamanga kwambiri, imabweretsanso kuchuluka kwa kutentha kwamagetsi. Choncho tiyenera kusankha yoyenera pagalimoto voteji mlingo, kutenga mkulu liwiro, kusalala ndi kutentha, phokoso ndi zizindikiro zina.
Njira zowongolera zothamangitsira komanso kutsika kwa ma stepper motors.
Ndi kufala kwa ma stepper motors, kuphunzira kwa stepper motor control kukuchulukiranso, poyambira kapena kuthamanga ngati kugunda kwa stepper kumasintha mwachangu kwambiri, rotor chifukwa cha inertia komanso kusatsata kusintha kwamagetsi amagetsi, zomwe zimapangitsa kutsekereza kapena kutayika kwa sitepe yoyimitsa kapena kutsika pazifukwa zomwezo kungayambitse kupitilira. Pofuna kupewa kutsekereza, kutayika kwa masitepe ndi kuwombera mopitilira muyeso, sinthani ma frequency ogwirira ntchito, motor stepper kukweza kuwongolera liwiro.
Kuthamanga kwa mota ya stepper kumadalira pafupipafupi kugunda, kuchuluka kwa mano ozungulira komanso kuchuluka kwa kumenyedwa. Liwiro lake la angular ndilofanana ndi kugunda kwafupipafupi ndipo limagwirizanitsidwa ndi nthawi ndi kugunda. Choncho, ngati chiwerengero cha mano a rotor ndi chiwerengero cha kumenyedwa kothamanga ndizotsimikizika, liwiro lofunidwa lingapezeke poyang'anira kugunda kwafupipafupi. Popeza stepper motor imayambitsidwa mothandizidwa ndi torque yake yolumikizirana, ma frequency oyambira sakhala okwera kuti asataye masitepe. Makamaka pamene mphamvu ikuwonjezeka, kukula kwa rotor kumawonjezeka, inertia imawonjezeka, ndipo mafupipafupi oyambira ndi maulendo othamanga amatha kusiyana ndi nthawi khumi.
The chiyambi pafupipafupi makhalidwe a stepper galimoto kuti stepper galimoto sangathe mwachindunji kufika pafupipafupi ntchito, koma kukhala ndi ndondomeko yoyambira, ndiye kuti, kuchokera pa liwiro otsika pang'onopang'ono zipolopolo mpaka liwiro ntchito. Imani pamene ntchito pafupipafupi sangakhoze yomweyo kuchepetsedwa ziro, koma kukhala mkulu-liwiro pang'onopang'ono kuchepetsa liwiro ziro ndondomeko.
Ma torque otulutsa a stepper motor amachepetsa ndi kukwera kwa ma frequency a pulse, kukweza ma frequency oyambira, kucheperako koyambira, kulephera kuyendetsa katundu, kuyambika kumayambitsa kutsika kwa sitepe, ndipo kuyimitsidwa kudzachitika kupitilira. Kuti stepper galimoto mwamsanga kufika liwiro lofunika ndipo musataye sitepe kapena overshoot, chinsinsi ndi kupanga mathamangitsidwe ndondomeko, mathamangitsidwe makokedwe chofunika kugwiritsa ntchito makokedwe operekedwa ndi stepper galimoto pa pafupipafupi ntchito, ndipo osati upambana makokedwe izi. Chifukwa chake, magwiridwe antchito a stepper motor nthawi zambiri amayenera kudutsa mathamangitsidwe, kuthamanga kwa yunifolomu, kutsitsa magawo atatu, mathamangitsidwe ndi kuthamangitsa nthawi yayifupi momwe mungathere, nthawi yothamanga nthawi yayitali momwe mungathere. Makamaka mu ntchito yofuna kuyankha mwachangu, kuyambira poyambira mpaka kumapeto kwa nthawi yothamanga yomwe imayenera kukhala yayifupi kwambiri, yomwe imayenera kuthamangitsa, njira yochepetsera ndiyo yaifupi kwambiri, pomwe liwiro lapamwamba kwambiri pa liwiro lokhazikika.
Asayansi ndi akatswiri kunyumba ndi kunja achita kafukufuku wochuluka pa luso kulamulira liwiro la ma stepper motors, ndipo anakhazikitsa zosiyanasiyana mathamangitsidwe ndi deceleration ulamuliro masamu zitsanzo, monga chitsanzo exponential, chitsanzo liniya, etc., ndipo pamaziko a kamangidwe kameneka ndi chitukuko cha zosiyanasiyana kulamulira mabwalo kuwongolera zoyenda makhalidwe a stepper motors, kupititsa patsogolo ntchito kutengerapo masitepe oyendetsa galimoto, kupititsa patsogolo masitepe oyendetsa galimoto kutengera masitepe. chibadidwe mphindi pafupipafupi makhalidwe a stepper motors, onse kuonetsetsa kuti stepper galimoto kuyenda popanda kutaya sitepe, komanso kupereka kusewera kwathunthu kwa makhalidwe chibadidwe cha galimoto, kufupikitsa kukweza liwiro nthawi, koma chifukwa cha kusintha kwa galimoto katundu, n'zovuta kukwaniritsa pamene liniya mathamangitsidwe ndi deceleration amangoganizira galimoto mu katundu mphamvu osiyanasiyana ang'onoang'ono liwiro ndi katundu chifukwa cha kugunda, voteji chifukwa cha kugunda, voteji, ndi kutulutsa mphamvu. ndi mawonekedwe akusintha, njira yothamangitsira mwachangu iyi ndi nthawi zonse, choyipa chake ndikuti sichimaganizira mokwanira za stepper motor linanena bungwe torque Ndi mawonekedwe akusintha liwiro, mota ya stepper pa liwiro lalikulu idzachitika popanda sitepe.
Uku ndikumayambiriro kwa mfundo yotenthetsera komanso ukadaulo wowongolera / wochepetsera ma stepper motors.
Ngati mukufuna kulankhulana ndi kugwirizana nafe, chonde omasuka kulankhula nafe!
Timayanjana kwambiri ndi makasitomala athu, kumvetsera zosowa zawo ndikuchita zomwe akufuna. Timakhulupirira kuti mgwirizano wopambana-wopambana umachokera ku khalidwe lazogulitsa ndi ntchito yamakasitomala.
Nthawi yotumiza: Apr-27-2023