Kuwotcha kwa Stepper motor chifukwa kusanthula

Chifukwa chimodzi.

Chimodzi mwazabwino kwambiri zama stepper motorsndiko kuwongolera kolondola komwe kungapezeke panjira yotseguka. Kuwongolera kotsegula kumatanthauza kuti palibe chidziwitso chokhudza malo (rotor) chomwe chikufunika.

Kuwongolera uku kumapewa kugwiritsa ntchito masensa okwera mtengo komanso zida zoyankha ngati ma encoder owoneka, chifukwa ma pulses okhawo amafunikira kutsata kuti adziwe malo (rotor). Posachedwapa, makasitomala ena awonetsa kwa mainjiniya athu a Shangshe motors kuti ma stepper motors nawonso amakhala ndi vuto la kutentha, ndiye kuti mutha kuthana ndi izi? 

1, kuchepetsastepper motakutentha, kuchepetsa kutentha ndiko kuchepetsa kutaya kwa mkuwa ndi kutaya kwachitsulo. Chepetsani kutayika kwa mkuwa munjira ziwiri, kuchepetsa yin yamagetsi ndi yapano, yomwe imafunikira kusankha kukana kwazing'ono ndikuvotera pano ngati yaying'ono momwe kungathekere pamene galimoto, magawo awiri amtundu wa stepper motor, angagwiritsidwe ntchito pamagalimoto otsatizana osati ofanana, koma izi nthawi zambiri zimatsutsana ndi zofunikira za torque ndi liwiro lalikulu.

2, chifukwa galimotoyo yasankhidwa, iyenera kugwiritsa ntchito mokwanira ntchito yowongolera yokhayokha yomwe ikuyendetsa galimotoyo komanso ntchito yapaintaneti, yoyambayo imachepetsa mphamvu yamagetsi ikapumula, yomalizayo imangodula magetsi.

3, Kuphatikiza apo, kugawikana kwa stepper motor drive chifukwa cha mawonekedwe apano ali pafupi ndi sinusoidal, ma harmonics ochepa, kutentha kwagalimoto kumakhala kochepa. Pali njira zingapo zochepetsera kutayika kwachitsulo, kuchuluka kwa voteji kumakhudzana ndi izi, ma mota okwera kwambiri ngakhale abweretsa kuwonjezereka kwa mawonekedwe othamanga kwambiri, komanso kubweretsa kuwonjezeka kwa kutentha. 

4, ayenera kusankha yoyenera pagalimoto galimoto voteji mlingo, kutenga mkulu gulu, kusalala ndi kutentha, phokoso ndi zizindikiro zina.

Chifukwa chachiwiri.

Kutentha kwa Stepper motor ngakhale nthawi zambiri sikukhudza moyo wagalimoto, chifukwa makasitomala ambiri safunikira kulabadira. Koma kwambiri adzabweretsa zotsatira zoipa. Monga stepper motor mkati matenthedwe kukulitsa koyenera wa gawo lililonse la kusintha osiyana structural kupsyinjika ndi kusintha pang'ono mu kusiyana mpweya mkati, zingakhudze kuyankha mphamvu ya stepper galimoto, mkulu-liwiro adzakhala zosavuta kutaya sitepe. Chitsanzo china ndi chakuti nthawi zina sizimalola kutentha kwambiri kwa ma stepper motors, monga zida zachipatala ndi zida zoyesera zolondola kwambiri. Chifukwa chake, kutentha kwa stepper motor kuyenera kukhala kofunikira kuwongolera. Kutentha kwa injini kumayambitsidwa ndi zinthu izi.

1, zomwe zidakhazikitsidwa ndi dalaivala ndizokulirapo kuposa zomwe zidavotera pamotoka

2, liwiro la mota ndilothamanga kwambiri

3, injini yokhayo imakhala ndi inertia yayikulu ndi torque yoyika, kotero kuti ngakhale sing'anga-liwiro laling'ono lidzakhala lotentha, koma silimakhudza moyo wa galimotoyo. The demagnetization mfundo ya galimoto mu 130-200 ℃, kotero galimoto mu 70-90 ℃ ndi chodabwitsa wamba, bola ngati zosakwana 130 ℃ zambiri palibe vuto, ngati mukumva kutenthedwa kwenikweni, pagalimoto panopa wakhazikitsidwa pafupifupi 70% ya oveteredwa galimoto panopa kapena galimoto liwiro kuchepetsa ena.

Chifukwa chachitatu.

Stepper motor ngati chinthu chothandizira digito, yakhala ikugwiritsidwa ntchito kwambiri pamakina owongolera zoyenda. Ogwiritsa ntchito ambiri ndi abwenzi pogwiritsira ntchito ma stepper motors, amamva kuti galimotoyo imagwira ntchito ndi kutentha kwakukulu, amakayikira, sakudziwa ngati chodabwitsa ichi ndi chachilendo. M'malo mwake, kutentha ndi chinthu chodziwika bwino cha ma stepper motors, koma ndi kutentha kotani komwe kumadziwika kuti ndizabwinobwino, komanso momwe mungachepetse kutentha kwa mota ya stepper?

 

Zotsatirazi timapanga gulu losavuta, mwachiyembekezo mu ntchito yeniyeni yogwiritsira ntchito:.

1 motor Kutentha mfundo

Nthawi zambiri timawona ma motors amitundu yonse, phata lamkati ndi coil yokhotakhota. Mapiringidzo ali ndi kukana, opatsa mphamvu adzabala kutayika, kukula kwa kutayika ndi kukana ndi panopa squared molingana ndi imfa, amene nthawi zambiri amatchedwa imfa mkuwa, ngati panopa si muyezo DC kapena sine yoweyula, komanso harmonic imfa; pachimake ali hysteresis eddy panopa zotsatira, mu alternating maginito kutulutsanso kutayika, kukula kwa zinthu, 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, kugwira ntchito kwake kumakhala kotsika pang'ono, komweko nthawi zambiri kumakhala kokulirapo, komanso zigawo zazikulu zolumikizirana, ma frequency amasinthasintha amasiyananso ndi liwiro, motero ma stepper motors nthawi zambiri amakhala ndi kutentha, ndipo zinthu ndizovuta kwambiri kuposa ma mota wamba wa AC.

2 stepper mota kutentha wololera osiyanasiyana

Kuchuluka kwa kutentha kwa injini kumaloledwa kumadalira kwambiri mulingo wamkati wa injini. Kutsekemera kwamkati kumangowonongeka pa kutentha kwakukulu (pamwamba pa madigiri 130). Malingana ngati mkati sichidutsa madigiri a 130, galimotoyo sichidzawononga mpheteyo, ndipo kutentha kwapansi kudzakhala pansi pa madigiri 90 panthawiyo. 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 motor Kutentha ndi kusintha liwiro

Mukamagwiritsa ntchito ukadaulo wamagalimoto apano, stepper motor pamayendedwe okhazikika komanso otsika, yapano ikhalabe yokhazikika kuti ipitilize kutulutsa torque nthawi zonse. Liwiro likakhala lalitali mpaka pamlingo wina, mphamvu yamkati ya injini 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 sikufanana, ndipo kutentha kwa injini yonse ndi chiwerengero cha ziwirizi, kotero zomwe zili pamwambazi ndizochitika zokhazokha.

4 kutentha komwe kumabwera chifukwa cha kukhudzidwa

Ngakhale kutentha kwa injini nthawi zambiri sikukhudza moyo wagalimoto, makasitomala ambiri safunikira kulabadira. Koma kwambiri adzabweretsa zotsatira zoipa. Monga ma coefficients osiyanasiyana a kuwonjezereka kwa kutentha kwa mbali zamkati za galimoto kumabweretsa kusintha kwa kupsinjika kwapangidwe ndi kusintha kwakung'ono kwa mpweya wamkati wamkati, zidzakhudza kuyankhidwa kwamphamvu kwa galimoto, kuthamanga kwambiri kudzakhala kosavuta kutaya mayendedwe. Chitsanzo china ndi chakuti nthawi zina sizilola kutentha kwambiri kwa injini, monga zida zachipatala ndi zida zoyesera zolondola kwambiri. Choncho, kutentha kwa injini kuyenera kuyendetsedwa ngati kuli kofunikira.

 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 ndikuvotera panopa kuti ndi kakang'ono ngati n'kotheka pamene galimoto, injini yamagulu awiri, imatha kugwiritsa ntchito galimotoyo motsatizana 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 ayenera kusankha yoyenera pagalimoto voteji mlingo, kutenga mkulu liwiro, kusalala ndi kutentha, phokoso ndi zizindikiro zina.

Kwa mitundu yonse ya ma stepper motors, mkati mwake mumapangidwa ndi chitsulo chachitsulo ndi koyilo yokhotakhota. Mapiringidzo ali ndi kukana, opatsa mphamvu adzabala kutayika, kukula kwa kutayika kuli kolingana ndi bwalo la kukana ndi panopa, lomwe nthawi zambiri limatchedwa meteor yamkuwa, ngati panopa siili yodziwika bwino ya DC kapena sine wave, komanso imfa ya harmonic; pachimake ali hysteresis eddy panopa zotsatira, mu alternating maginito kutulutsanso kutayika, kukula kwa zinthu, 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, kugwira ntchito kwake kumakhala kotsika pang'ono, komweko nthawi zambiri kumakhala kokulirapo, komanso zigawo zazikulu zolumikizirana, ma frequency amasinthasintha amasiyananso ndi liwiro, motero ma stepper motors nthawi zambiri amakhala ndi kutentha, ndipo zinthu ndizovuta kwambiri kuposa ma mota wamba wa AC.