Zvinhu zvebhurashi rekabhoni

Tiri kutaura nezvemabhurashi ekabhoni ekushandisa maturusi emagetsi nhasi. Brush rekabhoni (Carbon brush), iro rinonziwo bhurashi, serinotsvedza, rinoshandiswa zvakanyanya mumidziyo yemagetsi yakawanda. Brush rekabhoni muzvinhu zvinoshandiswa muzvigadzirwa zvinonyanya kuve graphite, graphite yakaiswa mumushonga, graphite yesimbi (ine mhangura, sirivha). Une mabhurashi ekabhoni akakwana here kuti upfuure nepabhokisi?

📍 Ndinofanira kutsiva bhurashi rekabhoni riini?
① Chinopenya zvikuru, bhurashi rekabhoni rinopisa pamusoro pe rotor, rinobvisa rori woripukuta ne sandpaper. Zvingangoitikawo kuti chinopisa chinogona kunge chiripo kuti copper iri pa rotor converter yapera, short-circuit spark yakakura, uye conductive performance yakaderera.
② haizotendeuki, bhurasho rekabhoni rapera.
(3) Hapana kana chimwe chezviitiko zviviri zviri pamusoro apa, kureva kuti, bhurashi remhando yekabhoni remhando yechitubu, kumanikidzwa kwechitubu chimwe chete hakuna kukwana, zvichiita kuti bhurashi rekabhoni uye kubatana kwerotor kusashande zvakanaka, unofanira kuburitsa waya yemhangura yekabhoni, wobva wawedzera maspring maviri.
(4) Pepa remhangura riri pamusoro pebhurashi rekabhoni, pepa remhangura risina nzvimbo yekadhi riri kushandiswa, kutenderera kwepepa remhangura kunoita kuti waya yemhangura iri pamusoro iome, bhurashi rekabhoni harigone kubatana nerotor, spark diki, uye kudiwa kwekubvisa nekuzunza.

📍 Mashandiro anoita bhurasho rekabhoni
Mota yebhurashi. Mota dzese dzakagadzirwa ne stator ne rotor, mumota yeDC, kuti rotor ikwire kumusoro, unofanirwa kugara uchichinja divi remagetsi, zvikasadaro rotor inogona kungotenderedza hafu yedenderedzwa, zvakafanana nekupeda pedal yebhasikoro, tsoka imwe chete inogona kungotenderedza hafu yedenderedzwa, saka mota yeDC inofanira kuchinja magetsi ari mu rotor, kureva kuti, divi remagetsi ari mu rotor kana uchida kudzokera shure. Kuchinja kwe commutator ndekwekuti kana kondakita ine simba ikaiswa mumunda we electromagnetic kuti ibvise simba remagetsi, kondakita ichasundirwa kunze kwesimba remagetsi risingachinji, izvo zvinokonzerwa nekuti mutsetse wemagetsi wesimba remagetsi unomanikidzwa uye wakakanganiswa nemagetsi ari mu conductor, uye mutsetse wemagetsi unoedza kudzokera kuchimiro chakatwasuka, izvo zvakaenzana nekugadzira masimba anokwezva uye anosemesa kuti mota itenderere. Commutator ine zvikamu zviviri zve semicircle zvakakamurwa nezvinhu zvinodzivirira. Zvikamu zviviri izvi zvinotenderera zvakateerana kuti zvibatane nebhurashi rekabhoni, uye bhurashi rekabhoni rinogara rakabatana nechikamu chemuchina unosangana nesimba rekutyaira, kuitira kuti mota inodzokorora itenderere.

📍 Matambudziko anosangana nekutsiva bhurashi rekabhoni nemhinduro
Dambudziko: 1, bhurashi rekabhoni rakanyanya kupfekwa
Chikonzero:
A. Simba remabhurashi ekabhoni. Vagadziri vakasiyana, mamodheru akasiyana ekugadzirwa kwebhurashi rekabhoni akasiyana, mwero wekupfekwa kwawo wakasiyanawo. Saka, kana uchitsiva bhurashi rekabhoni, sarudza mhando imwe chete yebhurashi rekabhoni;
B. Kupera kweringi rinotsvedza. Kupera kweringi rinotsvedza kwakakwira, ndiko kuderera kwe friction coefficient uye kuderera kwekabhoni bhurasho.
C Mhedzisiro yekumanikidzwa kwechitubu. Kumanikidzwa kwechitubu kwakanyanya kuchaita kuti brashi rekabhoni riwedzere; Panguva imwe chete, kumanikidzwa kwechitubu kudiki, kunyangwe kukweshana pakati pebhurashi rekabhoni neringi rinotsvedza kudiki, asi kusangana kusina kunaka kuri nyore kuburitsa zviedza, izvo zvisingadiwiwo;
D. Mhedzisiro yemagetsi. Kazhinji, pamabhurashi egrafiti kabhoni, magetsi anoyerera nebhurashi rekabhoni rakanaka akakura kupfuura magetsi anoyerera nebhurashi rekabhoni rakanaka, saka kupera kwebhurashi rekabhoni rakanaka kwakakura kupfuura kupera kwebhurashi rekabhoni rakanaka, uye kupera kweringi rinotsvedza rakanaka kwakakura kupfuura rin'i rinotsvedza rakanaka.
Mhinduro yacho:
1, kuwedzera mashandiro ekuzora kwebhurashi rekabhoni, kusanganisira kuzvizora wega uye kudzora pamusoro pebhurashi rekabhoni, kuramba kupisa kwakanyanya kwezvinhu zvinozora zvakawedzerwa;
2, kusimudzira kugadzikana kwemhando yebhurashi rekabhoni;
3, kusimudzira kubatana kwebhurashi rekabhoni uye commutator (commutator);
4, simbisa kugadzikana kwekushanda kwechitubu.

Dambudziko: 2, moto webhurashi rekabhoni
Chikonzero:
A. Zvinokonzerwa nemagetsi akawandisa anoyerera nemubhurashi rekabhoni;
B. Nekuda kwekadhi rekabhoni rinobata tsinga, kusangana neringi rinotsvedza kunokonzerwa.
Mhinduro yacho:
1, teerera kusarudza bhurashi rekabhoni rinoenderana nemuenzaniso wekushanda;
2, kuwedzera kuzvizora uye kunyorovesa pamusoro pebhurashi rekabhoni, uye kuramba kupisa kwakanyanya kwezvinhu zvinoderedza kupfeka.

Dambudziko: 3, tembiricha yebhurashi rekabhoni yakakwira
Chikonzero:
A. kuwandisa kwesystem yekumutsa;
B. Nzvimbo iri pakati pebhurashi rekabhoni nerin'i rinotsvedza idiki;
C. Hunhu hwebhurashi rekabhoni pacharo.
Mhinduro yacho:
1, teerera kusarudza bhurashi rekabhoni rinoenderana nemuenzaniso wekushanda;
2, kuwedzera kuzvizora uye kunyorovesa pamusoro pebhurashi rekabhoni, uye kuramba kupisa kwakanyanya kwezvinhu zvinoderedza kupfeka.
3. Teerera kusarudzwa kwemabhurashi ekabhoni ane hunhu hwakagadzikana.

Dambudziko: 4. Bhurashi rekabhoni rakakuvara zvakanyanya
Chikonzero:
A. Kupisa kwakanyanya kwebhurashi rekabhoni;
B. Bhurasho rekabhoni harina kukweshwa zvakanaka;
C. Kudedera kweyuniti kwakakura, uye bhurasho rekabhoni rakanamirwa mukubata kwebhurashi;
D. Hunhu hwebhurashi rekabhoni hwakaderera.
Mhinduro yacho:
1, teerera kusarudza bhurashi rekabhoni rinoenderana nemuenzaniso wekushanda;
2, kuwedzera kuzvizora uye kunyorovesa pamusoro pebhurashi rekabhoni, uye kuramba kupisa kwakanyanya kwezvinhu zvinoderedza kupfeka.
3, sarudza bhurashi rekabhoni rakavimbika uye rakagadzikana.

Dambudziko: 5, kusvetuka kwebhurashi rekabhoni
Chikonzero: Bhurasho rekabhoni rakatyoka zvidimbu zvidiki zvakawira mukubata kwebhurashi kana zvimwe zvikonzero zvinogona kunge zviripo
Mhinduro yacho:
1, teerera kusarudza bhurashi rekabhoni rinoenderana nemuenzaniso wekushanda;
2, sarudza bhurashi rekabhoni rakavimbika uye rakagadzikana.
3, kuwedzera kuzvizora uye kunyorovesa pamusoro pebhurashi rekabhoni, uye kuramba kupisa kwakanyanya kwezvinhu zvinoderedza kupfeka.