1. Kodi mota ya stepper ndi chiyani?
Mota ya stepper ndi actuator yomwe imasintha ma pulse amagetsi kukhala angular displacement. Kunena momveka bwino: pamene stepper driver alandira chizindikiro cha pulse, imayendetsa stepper motor kuti izungulire ngodya yokhazikika (ndi ngodya ya sitepe) m'njira yokhazikika. Mutha kuwongolera kuchuluka kwa ma pulse kuti muwongolere kusuntha kwa angular, kuti mukwaniritse cholinga chokhazikitsa malo molondola; nthawi yomweyo, mutha kuwongolera kuchuluka kwa ma pulse kuti muwongolere liwiro ndi kufulumira kwa kuzungulira kwa mota, kuti mukwaniritse cholinga chowongolera liwiro.
2. Kodi pali mitundu yanji ya ma stepper motors?
Pali mitundu itatu ya ma stepping motors: permanent magnet (PM), reactive (VR) ndi hybrid (HB). Permanent magnet stepping nthawi zambiri imakhala ya magawo awiri, yokhala ndi torque yaying'ono ndi voliyumu, ndipo stepping angle nthawi zambiri imakhala madigiri 7.5 kapena madigiri 15; reactive stepping nthawi zambiri imakhala ya magawo atatu, yokhala ndi torque yayikulu, ndipo stepping angle nthawi zambiri imakhala madigiri 1.5, koma phokoso ndi kugwedezeka ndizabwino kwambiri. Ku Europe ndi United States ndi mayiko ena otukuka m'zaka za m'ma 80 zachotsedwa; hybrid stepping imatanthauza kusakaniza kwa permanent magnet mtundu ndi ubwino wa reaction type. Imagawidwa m'magawo awiri ndi asanu: two-phase stepping angle nthawi zambiri imakhala madigiri 1.8 ndipo five-phase stepping angle nthawi zambiri imakhala madigiri 0.72. Mtundu uwu wa stepper motor ndi womwe umagwiritsidwa ntchito kwambiri.
3. Kodi mphamvu yogwirira (MFUNDO YOGWIRA) ndi chiyani?
Mphamvu Yogwira (HOLDING TORQUE) imatanthauza mphamvu ya stator yomwe imatseka rotor pamene mota ya stepper ikugwiritsidwa ntchito koma osazungulira. Ndi imodzi mwa magawo ofunikira kwambiri a mota ya stepper, ndipo nthawi zambiri mphamvu ya mota ya stepper pa liwiro lotsika imakhala pafupi ndi mphamvu yogwira. Popeza mphamvu yotulutsa ya mota ya stepper imapitirira kuwonongeka ndi liwiro lowonjezeka, ndipo mphamvu yotulutsa imasintha ndi liwiro lowonjezeka, mphamvu yogwira imakhala imodzi mwa magawo ofunikira kwambiri poyesa mota ya stepper. Mwachitsanzo, anthu akamanena kuti mota ya 2N.m stepping, amatanthauza mota yokwera yokhala ndi mphamvu yogwira ya 2N.m popanda malangizo apadera.
4. Kodi DETENT TORQUE ndi chiyani?
DETENT TORQUE ndi mphamvu yomwe stator imatseka rotor pamene mota yopondapo siigwira ntchito. DETENT TORQUE siimasuliridwa mofanana ku China, zomwe n'zosavuta kuzimvetsa; popeza rotor ya mota yopondapo yomwe imagwira ntchito si chinthu chokhazikika cha maginito, ilibe DETENT TORQUE.
5. Kodi kulondola kwa mota yokwerera ndi kotani? Kodi ndi kokwanira?
Kawirikawiri, kulondola kwa mota ya stepper ndi 3-5% ya ngodya yolowera, ndipo sikumangika.
6. Kodi kutentha kotani komwe kumaloledwa kunja kwa mota ya stepper?
Kutentha kwakukulu kwa mota yopondapo kudzayamba kuchotsa maginito a maginito a mota, zomwe zimapangitsa kuti torque igwe kapena kutuluka pa sitepe, kotero kutentha kwakukulu komwe kungaloledwe kunja kwa mota kuyenera kudalira malo ochotsera maginito a maginito a maginito osiyanasiyana; nthawi zambiri, malo ochotsera maginito a maginito ndi opitilira madigiri Celsius 130, ndipo ena mwa iwo ndi opitilira madigiri Celsius 200, kotero ndizachilendo kuti kunja kwa mota yopondapo kukhale kutentha kwa madigiri Celsius 80-90.
7. N’chifukwa chiyani mphamvu ya injini ya stepper imachepa ndi kuwonjezeka kwa liwiro lozungulira?
Pamene mota yoponda ikuzungulira, mphamvu ya gawo lililonse la kuzunguliza kwa mota imapanga mphamvu yosinthira ma electromotive; ma frequency akakwera, mphamvu yosinthira ma electromotive imakulanso. Pogwiritsa ntchito mphamvu yake, mphamvu yamagetsi imachepa ndi kuwonjezeka kwa ma frequency (kapena liwiro), zomwe zimapangitsa kuti torque ichepe.
8. N’chifukwa chiyani injini ya stepper imatha kuyenda bwino pa liwiro lotsika, koma ngati ili yokwera kuposa liwiro linalake silingayambe, ndipo limabwera ndi phokoso la mluzu?
Mota yoponda ili ndi njira yaukadaulo: ma frequency oyambira osanyamula katundu, kutanthauza kuti ma pulse frequency a mota yoponda amatha kuyamba bwino popanda katundu, ngati ma pulse frequency ali apamwamba kuposa mtengo uwu, motayo singayambe bwino, ndipo ikhoza kutaya sitepe kapena kutsekeka. Pankhani ya katundu, ma frequency oyambira ayenera kukhala otsika. Ngati motayo ikufuna kuzungulira liwiro lalikulu, ma pulse frequency ayenera kufulumizitsidwa, mwachitsanzo, ma frequency oyambira ndi otsika, kenako kuwonjezeredwa kufika pa ma frequency apamwamba omwe mukufuna (liwiro la mota kuchokera pansi mpaka pamwamba) pa liwiro linalake.
9. Kodi mungagonjetse bwanji kugwedezeka ndi phokoso la injini yophatikizana yokwera magawo awiri pa liwiro lotsika?
Kugwedezeka ndi phokoso ndi zovuta zomwe zimachitika chifukwa cha ma stepper motors akamazungulira pa liwiro lotsika, zomwe nthawi zambiri zimatha kuthetsedwa ndi mapulogalamu otsatirawa:
A. Ngati mota yokwerera ikugwira ntchito m'dera la resonance, dera la resonance lingapewedwe mwa kusintha ma transmission amakina monga reduction ratio;
B. Gwiritsani ntchito dalaivala ndi ntchito yogawa magawo, yomwe ndi njira yogwiritsidwa ntchito kwambiri komanso yosavuta;
C. Sinthanitsani ndi mota yokwerera yokhala ndi ngodya yaying'ono yokwerera, monga mota yokwerera ya magawo atatu kapena asanu;
D. Sinthani ku ma AC servo motors, omwe amatha kugonjetsa kugwedezeka ndi phokoso, koma pamtengo wokwera;
E. Mu shaft ya mota yokhala ndi damper ya maginito, msika uli ndi zinthu zotere, koma kapangidwe ka makina kamasintha kwambiri.
10. Kodi kugawa kwa drive kumatanthauza kulondola?
Kulumikiza ma stepper motor kwenikweni ndi ukadaulo wamagetsi wochepetsa mphamvu (chonde onani mabuku oyenera), cholinga chake chachikulu ndikuchepetsa kapena kuchotsa kugwedezeka kwa ma frequency otsika kwa stepper motor, ndipo kukonza kulondola kwa kuyendetsa kwa injini ndi ntchito yongochitika mwangozi ya ukadaulo wolumikizira. Mwachitsanzo, pa mota yolumikizira ma hybrid yokhala ndi ngodya yolowera ya 1.8°, ngati nambala yolumikizira ya driver wolumikizira yayikidwa pa 4, ndiye kuti resolution ya kuyendetsa kwa injini ndi 0.45° pa pulse iliyonse. Kaya kulondola kwa mota kumatha kufika kapena kuyandikira 0.45° kumadaliranso zinthu zina monga kulondola kwa ulamuliro wamakono wa interpolation wa driver wolumikizira. Opanga osiyanasiyana a subdivided drive molondola angasiyane kwambiri; pamene subdivided points ikukula, zimakhala zovuta kwambiri kuwongolera kulondola.
11. Kodi kusiyana pakati pa kulumikizana kwa mndandanda ndi kulumikizana kofanana kwa injini yophatikizana yopitilira magawo anayi ndi dalaivala ndi chiyani?
Mota yoyendera ya magawo anayi nthawi zambiri imayendetsedwa ndi dalaivala wa magawo awiri, chifukwa chake, kulumikizanako kungagwiritsidwe ntchito motsatizana kapena motsatizana kuti mulumikize mota ya magawo anayi kuti mugwiritse ntchito magawo awiri. Njira yolumikizira yotsatizana nthawi zambiri imagwiritsidwa ntchito nthawi zomwe liwiro la mota ndi lalikulu, ndipo mphamvu yotulutsa ya dalaivala yomwe ikufunika ndi nthawi 0.7 ya mphamvu ya gawo la mota, motero kutentha kwa mota ndi kochepa; njira yolumikizira yotsatizana nthawi zambiri imagwiritsidwa ntchito nthawi zomwe liwiro la mota ndi lalikulu (lomwe limadziwikanso kuti njira yolumikizira ya liwiro lalikulu), ndipo mphamvu yotulutsa ya dalaivala yomwe ikufunika ndi nthawi 1.4 ya mphamvu ya gawo la mota, motero kutentha kwa mota ndi kwakukulu.
12. Kodi mungadziwe bwanji mphamvu yamagetsi ya DC ya stepper motor driver?
A. Kutsimikiza kwa magetsi
Voliyumu yamagetsi ya Hybrid stepper motor nthawi zambiri imakhala yosiyanasiyana (monga voltage yamagetsi ya IM483 ya 12 ~ 48VDC), voltage yamagetsi nthawi zambiri imasankhidwa malinga ndi liwiro la injini komanso zofunikira pakuyankha. Ngati liwiro logwira ntchito la injini lili lalikulu kapena kufunika koyankha kuli kofulumira, ndiye kuti mtengo wamagetsi nawonso ndi wokwera, koma samalani kuti kugwedezeka kwa magetsi sikungapitirire voliyumu yayikulu yolowera ya dalaivala, apo ayi dalaivala angawonongeke.
B. Kudziwa za momwe zinthu zilili panopa
Mphamvu yamagetsi nthawi zambiri imatsimikiziridwa malinga ndi mphamvu yamagetsi ya gawo I ya dalaivala. Ngati mphamvu yamagetsi yolunjika ikugwiritsidwa ntchito, mphamvu yamagetsi imatha kukhala nthawi 1.1 mpaka 1.3 ya I. Ngati mphamvu yosinthira ikugwiritsidwa ntchito, mphamvu yamagetsi imatha kukhala nthawi 1.5 mpaka 2.0 ya I.
13. Kodi chizindikiro cha hybrid stepping motor chomwe sichili pa intaneti chimagwiritsidwa ntchito pazochitika ziti?
Pamene chizindikiro cha FREE chopanda intaneti chili chochepa, mphamvu yotulutsa mphamvu kuchokera kwa dalaivala kupita ku mota imadulidwa ndipo chozungulira cha mota chimakhala mu mkhalidwe waulere (mkhalidwe wa offline). Mu zida zina zodziyimira pawokha, ngati mukufunika kuzungulira shaft ya mota mwachindunji (pamanja) pamene drive sikugwira ntchito, mutha kuyika chizindikiro cha FREE chotsika kuti mota isagwire ntchito ndikuchita ntchito yamanja kapena kusintha. Pambuyo poti ntchito yamanja yatha, ikani chizindikiro cha FREE chokwera kachiwiri kuti mupitirize kulamulira yokha.
14. Kodi njira yosavuta yosinthira kayendedwe ka injini yoyendera magawo awiri ikagwiritsidwa ntchito ndi iti?
Ingolumikizani A+ ndi A- (kapena B+ ndi B-) ya waya wa mota ndi dalaivala.
15. Kodi kusiyana pakati pa ma mota a hybrid stepper a magawo awiri ndi asanu ndi kotani pakugwiritsa ntchito?
Yankho la Funso:
Kawirikawiri, ma mota a magawo awiri okhala ndi ngodya zazikulu zoyendera ali ndi mawonekedwe abwino othamanga kwambiri, koma pali malo otsetsereka otsika. Ma mota a magawo asanu ali ndi ngodya yaying'ono yoyendera ndipo amayenda bwino pa liwiro lotsika. Chifukwa chake, mu injini, kulondola kumafunikira kwambiri, ndipo makamaka mu gawo lotsika (nthawi zambiri osakwana 600 rpm) la chochitikacho, mota ya magawo asanu iyenera kugwiritsidwa ntchito; m'malo mwake, ngati mukufuna kuyendetsa bwino mota, kulondola ndi kusalala kwa chochitikacho popanda zofunikira zambiri kuyenera kusankhidwa pamtengo wotsika wa ma mota a magawo awiri. Kuphatikiza apo, mphamvu ya ma mota a magawo asanu nthawi zambiri imakhala yoposa 2NM, pakugwiritsa ntchito mphamvu yaying'ono, ma mota a magawo awiri nthawi zambiri amagwiritsidwa ntchito, pomwe vuto la kusalala kotsika lingathe kuthetsedwa pogwiritsa ntchito drive yogawidwa.
Nthawi yotumizira: Sep-12-2024