Linear stepper motor, eyaziwa ngokubaumgca stepper motor, ngundoqo we-rotor yamagnetic ngokunxibelelana ne-pulsed electromagnetic field eyenziwe yistator ukuvelisa ukujikeleza, i-linear stepper motor ngaphakathi kwemoto ukuguqula intshukumo ejikelezayo ibe yintshukumo yomda. Iimotor ze-linear stepper zinokwenza intshukumo yomgca okanye intshukumo ephindaphindayo yomgca ngokuthe ngqo. Ukuba imotor ejikelezayo isetyenziswa njengomthombo wamandla ukuguqula intshukumo yomgca, iigiya, izakhiwo zecam kunye neendlela ezinje ngamabhanti okanye iingcingo ziyafuneka. Intshayelelo yokuqala yeenjini zokunyathela ezizinyathelayo yayingowe-1968, kwaye lo mfanekiso ulandelayo ubonisa ezinye iimotor ze-stepper eziqhelekileyo.
Umgaqo osisiseko weenjini eziqhutywa ngaphandle
I-rotor yenjini ye-stepper eqhutywa ngaphandle yimagnethi esisigxina. Xa ikhoyo ngoku ihamba nge-stator winding, i-stator winding yenza i-vector magnetic field. Le ntsimi yamagnetic iqhuba i-rotor ukuba ijikeleze kwi-angle ethile, ukwenzela ukuba ulwalathiso lwe-rotor ye-magnetic fields luhambelane nolwalathiso lwe-stator's magnetic field. Xa i-stator's vector magnetic field ijikeleza nge-engile. I-rotor iphinda ijikeleze nge-angle kunye nale ntsimi yamagnetic. Kwigalelo ngalinye le-pulse yombane, i-rotor yombane ijikeleza nge-angle enye kwaye ihambisa inyathelo elinye phambili. Ikhupha i-angular displacement ngokulinganayo kwinani le-pulses input kunye nesantya esilinganayo kwi-pulse frequency. Ukutshintsha ulandelelwano lwamandla ajikajikayo kubuyisela umva injini. Ke i-stepper motor rotation inokulawulwa ngokulawula inani lee-pulses, frequency kunye nomyalelo wokunika amandla i-motor windings yesigaba ngasinye.
I-motor isebenzisa isikrufu njenge-axis ephumayo, kwaye i-nut yedrayivu yangaphandle ibotshelelwe ngesikrufu ngaphandle kwe-motor, ithatha indlela ethile yokuthintela i-screw nut ukuba ingajiki iye kwisihlobo enye kwenye, ngaloo ndlela ifezekisa intshukumo yomgama. Isiphumo luyilo olwenziwe lula kakhulu oluvumela ukusetyenziswa kweenjini ze-stepper ezihambelana ngokuthe ngqo kwintshukumo echanekileyo yomgca kwizicelo ezininzi ngaphandle kofakelo loqhagamshelo lomatshini lwangaphandle.
Izinto eziluncedo zeenjini zomgca eziqhutywa ngaphandle
Ukuchaneka komgca we-screw stepper motors unokutshintsha iisilinda ngaphakathiezinye izicelo, ukuzuza iingenelo ezifana nokuma okuchanekileyo, isantya esilawulekayo, kunye nokuchaneka okuphezulu. I-Linear screw stepper motors zisetyenziswa kuluhlu olubanzi lwezicelo ezibandakanya ukwenziwa, ukulinganisa okuchanekileyo, ukulinganisa ulwelo oluchanekileyo, intshukumo yendawo echanekileyo, kunye nezinye iindawo ezininzi ezineemfuno ezichanekileyo.
▲Ukuchaneka okuphezulu, ukuchaneka kokubeka okuphindaphindiweyo ukuya kuthi ga ku-±0.01mm
I-Linear screw stepping motor inciphisa ingxaki ye-interpolation lag ngenxa yendlela elula yokuhambisa, ukuchaneka kwendawo, ukuphindaphinda kunye nokuchaneka ngokupheleleyo.Kulula ukufezekisa kune "rotary motor + screw". Ukuphinda-phinda ukuchaneka kokuma kwesikrufu esiqhelekileyo sesikrufu somgca esinyathelayo sinokufikelela ku-±0.05mm, kwaye ukuphinda-phinda ukuchaneka kokubeka isikrufu sebhola kunokufikelela ku-±0.01mm.
▲ Isantya esiphezulu, ukuya kuthi ga kwi-300m / min
Isantya somgca we-screw stepping motor yi-300m / min kwaye i-acceleration yi-10g, ngelixa i-speed ye-ball screw yi-120m / min kunye ne-acceleration yi-1.5g. Kwaye isantya somgca we-screw stepping motor siya kuphuculwa ngakumbi emva kokusombulula ngempumelelo ingxaki yobushushu, ngelixa "i-rotary Isantya se "servo motor & ball screw" sinqunyelwe kwisantya, kodwa kunzima ukuphucula ngakumbi.
Ubomi obuphezulu kunye nokugcinwa lula
Umgca we-screw stepping motor ulungele ukuchaneka okuphezulu kuba akukho qhagamshelwano phakathi kwamalungu ahambayo kunye neendawo ezizinzileyo ngenxa yesithuba esinyukayo kwaye akukho mpahla ngenxa yesantya esiphezulu esibuyisela intshukumo yabahambi. I-screw yebhola ayinakuqinisekisa ukuchaneka kwi-high-speed reciprocating motion, kunye ne-speed-speed friction iya kubangela ukugqoka i-screw nut, eya kuchaphazela ukuchaneka kwentshukumo kwaye ayikwazi ukuhlangabezana nemfuno yokuchaneka okuphezulu.
Ukukhethwa kwemoto yangaphandle yelinear drive
Xa usenza iimveliso ezinxulumene nentshukumo okanye izisombululo, sicebisa iinjineli ukuba zigxile kula manqaku alandelayo.
1. Yintoni umthwalo wenkqubo?
Umthwalo wenkqubo uquka umthwalo omileyo kunye nomthwalo oguqukayo, kwaye ngokuphindaphindiweyo ubungakanani bomthwalo bumisela ubungakanani obusisiseko bemoto.
Umthwalo omileyo: elona tyholo liphezulu apho isikrufu sinokumelana nalo xa siphumle.
Umthwalo oguqukayo: elona tyholo liphezulu esinokuthi isikrufu sime xa sihamba.
2. Sithini isantya sokubaleka semoto?
Isantya sokubaleka senjini yomgca sisondelelene nesikhokelo sesikrufu, inguqu enye ye-screw yintambo enye ye nut. Ngesantya esiphantsi, kuyacetyiswa ukuba ukhethe i-screw ngesikhokelo esincinci, kunye nesantya esiphezulu, kuyacetyiswa ukuba ukhethe i-screw enkulu.
3. Yintoni imfuneko yokuchaneka kwenkqubo?
Ukuchaneka kweScrew: ukuchaneka kwesikrufu ngokuqhelekileyo kulinganiswa ngokuchaneka komgca, okt impazamo phakathi kohambo oluyinyani kunye nohambo lwethiyori emva kokuba isikrufu sijikelisa isangqa esikrakra esomileyo.
Ukuphindaphinda ukuchaneka kokumisa: ukuphindaphinda ukuchaneka kokumisa kuchazwa njengokuchaneka kwenkqubo ukukwazi ukufikelela kwindawo echaziweyo ngokuphindaphindiweyo, okuyisalathisi esibalulekileyo kwinkqubo.
Ukubuyela umva: ukubuya umva kwesikrufu kunye namantongomane ekuphumleni xa zimbini i-axial isixa esishukumayo. Njengoko ixesha lokusebenza landa, i-backlash nayo iya kwanda ngenxa yokugqoka. Imbuyekezo okanye ukulungiswa kwe-backlash inokufezekiswa nge-nut yokususa umva. Xa ukubekwa kwe-bi-directional kufuneka, ukubuyisela umva kuyinkxalabo.
4. Olunye ukhetho
Le miba ilandelayo nayo kufuneka iqwalaselwe kwinkqubo yokhetho: Ngaba ukunyuswa kwe-motor stepper linear ngokuhambelana noyilo lomatshini? Uza kudibanisa njani into ehambayo kwi nut? Yintoni istrowuthi esebenzayo ye-screw rod? Loluphi uhlobo lokuqhuba oluya kuhambelana?
Ixesha lokuposa: Nov-16-2022