Palibe kusiyana pakati pa mota ya DC ya burashi ya kaboni ndi mota ya DC ya burashi kwenikweni, monga momwe maburashi amagwiritsidwira ntchito muMa mota a DCnthawi zambiri amakhala maburashi a kaboni. Komabe, kuti zimveke bwino nthawi zina, ziwirizi zitha kutchulidwa ndikuyerekezeredwa ndi mitundu ina ya ma mota. Tsatanetsatane watsatanetsatane ndi uwu:

Burashi DC Motor

• Mfundo Yogwirira Ntchito: Mota ya DC yopukutidwa imagwira ntchito motsatira mfundo za electromagnetic induction ndi Ampere's rule6. Ili ndi zigawo monga stator, rotor, maburashi, ndi commutator. Pamene gwero lamagetsi la DC lipereka mphamvu ku mota kudzera m'maburashi, stator imapanga mphamvu ya maginito yosasinthasintha, ndipo rotor, yolumikizidwa ku gwero lamagetsi kudzera m'maburashi ndi commutator, imapanga mphamvu ya maginito yozungulira. Kuyanjana pakati pa mphamvu ya maginito yozungulira ndi stator field kumapanga mphamvu ya maginito, yomwe imayendetsa mota kuti izungulire. Pakugwira ntchito, maburashi amatsetsereka pa commutator kuti asinthe mphamvu yamagetsi ndikusunga kuzungulira kosalekeza kwa mota6.
• Makhalidwe a Kapangidwe: Ili ndi kapangidwe kosavuta, makamaka kuphatikiza stator, rotor, maburashi, ndi commutator. Stator nthawi zambiri imapangidwa ndi mapepala achitsulo a silicon okhala ndi ma windings ozungulira. Rotor imakhala ndi chitsulo chapakati ndi ma windings, ndipo ma windings amalumikizidwa ku magetsi kudzera mu maburashi6.
• Ubwino: Ili ndi ubwino wa kapangidwe kosavuta komanso mtengo wotsika, zomwe zimapangitsa kuti ikhale yosavuta kupanga ndi kusamalira. Ilinso ndi magwiridwe antchito abwino oyambira ndipo imatha kupereka mphamvu yayikulu yoyambira6.
• Zoyipa: Kukangana ndi kuyaka pakati pa maburashi ndi makina oyendetsera galimoto panthawi yogwira ntchito kumabweretsa kuwonongeka, zomwe zimachepetsa kugwira ntchito bwino kwa injini komanso nthawi yake yogwira ntchito. Kuphatikiza apo, magwiridwe antchito ake olamulira liwiro ndi otsika, zomwe zimapangitsa kuti zikhale zovuta kuyendetsa bwino liwiro6.

Mpweya wa Burashi wa DC

• Mfundo Yogwirira Ntchito: Mota ya DC ya burashi ya kaboni kwenikweni ndi mota ya DC yolumikizidwa, ndipo mfundo yake yogwirira ntchito ndi yofanana ndi ya mota ya DC yolumikizidwa yomwe yafotokozedwa pamwambapa. Burashi ya kaboni imakhudzana ndi commutator, ndipo pamene commutator ikuzungulira, burashi ya kaboni imasintha nthawi zonse njira ya mphamvu mu rotor coil kuti itsimikizire kuti rotor ikuzungulira mosalekeza.
• Makhalidwe a Kapangidwe: Kapangidwe kake ndi kofanana ndi ka mota ya DC yoyendetsedwa ndi brushed, kuphatikizapo stator, rotor, carbon burashi, ndi commutator. Burashi ya carbon nthawi zambiri imapangidwa ndi graphite kapena chisakanizo cha graphite ndi ufa wachitsulo, womwe uli ndi mphamvu zamagetsi zabwino komanso umadzipaka wokha, zomwe zimachepetsa kuwonongeka ndi kung'ambika pakati pa burashi ndi commutator pamlingo winawake.
• Ubwino: Burashi ya kaboni ili ndi mphamvu zodzipaka yokha komanso zosawonongeka, zomwe zimachepetsa ndalama zosinthira ndi kukonza burashi. Ilinso ndi mphamvu yabwino yoyendetsera magetsi ndipo imatha kuonetsetsa kuti mota ikugwira ntchito bwino.
• Zoyipa: Ngakhale burashi ya kaboni imakhala yolimba kuposa maburashi ena wamba, imafunikabe kusinthidwa nthawi zonse. Kuphatikiza apo, kugwiritsa ntchito maburashi a kaboni kungapangitsenso ufa wa kaboni, womwe umafunika kutsukidwa nthawi zonse kuti usakhudze magwiridwe antchito a injini.