Zvinhu uye Kukosha kweCarbon Brushes

Zvinhu uye Kukosha kweCarbon Brushes

Carbon brusheskana mabhurashi emagetsi ari inoshandiswa zvakanyanya mumidziyo yemagetsi. Iwo anoshandiswa kutumira masaini kana simba pakati peyakagadziriswa chikamu uye chikamu chinotenderera chemamwe mota kana jenareta. Chimiro chine rectangular, uye waya dzesimbi dzakaiswa mu chitubu. Carbon brushes imhando yekutsvedza kubata, saka zviri nyore kupfeka uye inoda kuchinjwa nguva dzose uye carbon deposits dzakasakara inofanira kucheneswa.

Chinhu chikuru che carbon brush is kabhoni. Kana ichishanda, inomanikidzwa nechitubu kuti ishande pachikamu chinotenderera sebhurasho, saka inonzi kabhoni brashi. Chinhu chikuru igraphite.

Graphite chinhu chechisikigo, chikuru chayo chikamu icarbon, ruvara rwakasviba, opaque, semi-metallic luster, yakaderera hurema, hunogona kunhongwa neminwe, graphite nedhaimani zvese kabhoni, asi maitiro avo akasiyana zvakanyanya, izvo zvinokonzerwa nekusiyana kuronga kwekabhoni maatomu. Kunyangwe kuumbwa kwegraphite kuri kabhoni, iyo chinhu chepamusoro chinoshingirira kupisa uye chinonyungudika chinosvika 3652°C. Kushandisa iyi yakakwirira tembiricha yekudzivirira pfuma, graphite inogona kugadziriswa kuita a high tembiricha resistant kemikari crucible.

Iyo magetsi conductivity yegraphite ndeye yakanaka kwazvo, inodarika simbi zhinji nemazana enguva iyo isiri-simbi, saka inogadzirwa kuva conductive zvikamu zvakadai se electrodes uye carbon brushes; chimiro chemukati che graphite chinogadzirisa kunaka kwayo, uye isu kazhinji shandisa pamagonhi ane ngura Kuisa guruva repenzura kana graphite muchikiyi kuchaita zviri nyore kuvhura musuwo. Izvi zvinofanirwa kunge zviri kuita kwekuzora kwegraphite.

Carbon brushesanonyanya kushandiswa muDC midziyo yemagetsi. Brushed motors inoumbwa ne stator uye rotor. In mota yeDC, kuitira kuti rotor itenderere, kutungamira kwezvino inoda kugara ichishandurwa, kana zvisina kudaro rotor inogona kungotenderera hafu yea denderedzwa. Carbon brushes inoita basa rakakosha muDC motors. Carbon brushes fambisa ikozvino pakati pezvikamu zvinofamba zvemotokari. Conduction iyi inotsvedza conduction iyo inogona kutamisa ikozvino kubva kumagumo ekupedzisira kusvika kune inotenderera chikamu che jenareta kana mota. Kabhoni furemu inoumbwa nemabhurashi ekabhoni akati wandei, saka iyi conduction nzira inoitawo kuti kabhoni mabhurashi ave nyore kupfeka, uye carbon brushes inoshandurawo nzira yezvino, kureva, basa re commutation.

Iyo brushed mota inotora mechanika kuchinjika, iyo yekunze magineti pole haifambi uye iyo yemukati coil inofamba. Kana iyo mota ichishanda, iyo commutator uye coil inotenderera pamwechete, uye iyo kabhoni brashi uye iyo magineti simbi haifambi, saka iyo commutator uye iyo carbon brush inogadzira friction kuti ipedze kuchinja kwezvino direction.

Sezvo mota ichitenderera, makoiri akasiyana kana zvikamu zviviri zvakasiyana zvekoiri imwechete zvinosimbiswa, kuitira kuti matanda maviri e iyo magnetic field inogadzirwa nekoiri ine kona ine mapango maviri ari pedyo kune isingaperi magineti stator, uye simba rinogadzirwa kuburikidza ne kusvotwa kwedanda rimwechete uye kukwezva kwedanda rakapesana nekutyaira mota kutenderera.

Carbon brushesanoshandiswawo mu AC midziyo. Chimiro uye zvinhu zve AC mota kabhoni mabhurashi uye DC mota carbon brushes zvakafanana. Mune AC motors, kabhoni mabhurashi anoshandiswa kana mamwe mhepo inotenderera inoda kukurumidza kukurumidza, senge madhiri edu anowanzo shandiswa emagetsi nemichina yekupukuta, uye inoda kutsiva kabhoni mabhurashi nguva zhinji.