Dab tsi yog txoj kev thim rov qab ntawm DC motors
Tso lus
DC lub cev muaj zog yog lub cev muaj zog uas hloov DC lub zog hluav taws xob rau hauv lub zog siv tshuab. Nws yog dav siv nyob rau hauv resistors vim nws txoj kev ceev ceev kev ua tau zoo. Raws li hom excitation, DC motors tau muab faib ua peb pawg: cov hlau nplaum tas mus li, nyias muaj nyias kev zoo siab thiab nws tus kheej zoo siab, uas nws tus kheej excitation tau muab faib ua peb hom: shunt excitation, series excitation thiab compound excitation. Cia kuv qhia rau koj "dab tsi yog txoj hauv kev ntawm kev thim rov qab DC lub cev muaj zog".
1. Armature thim rov qab txoj kev sib txuas
Lub polarity ntawm qhov voltage ntawm qhov kawg ntawm lub teb coil tseem tsis hloov pauv, thiab lub cev muaj zog tig los ntawm kev hloov lub polarity ntawm qhov voltage ntawm qhov kawg ntawm armature coil.
2. Excitation rotation yog thim rov qab txoj kev sib txuas
Khaws qhov hluav taws xob polarity ntawm armature coil davhlau ya nyob twg tsis hloov, thiab kho cov kev taw qhia lub cev muaj zog los ntawm kev hloov qhov voltage polarity ntawm excitation coil davhlau ya nyob twg. Yog hais tias lub polarities ntawm ob lub voltages hloov nyob rau tib lub sij hawm, cov kev taw qhia ntawm kev sib hloov ntawm lub cev muaj zog yuav tsis hloov.
3. Hloov txhuam nkag txoj hauj lwm ntawm armature
Hloov lub kaum sab xis ntawm lub armature winding thiab teb winding los hloov lub orientation ntawm DC lub cev muaj zog.
Tsis tas li ntawd, lub zog rau pem hauv ntej thiab thim rov qab ntawm kev sib cais-zoo siab thiab shunt-excited DC motors feem ntau txais yuav txoj kev sib txuas ntawm armature rov qab. Sib cais zoo siab thiab sib npaug DC motors tsis siv qhov rov qab kev sib txuas ntawm excitation coil kom paub txog kev sib hloov mus rau pem hauv ntej thiab rov qab, vim hais tias tus naj npawb ntawm cov lem ntawm excitation kauj yog loj, thaum lub excitation winding yog reversely txuas, ib tug loj induced electromotive quab yuam yuav. yuav generated nyob rau hauv lub excitation winding. Qhov no tuaj yeem ua rau cov hniav puas thiab qhov chaw winding rwb thaiv tsev.
