Kungani injini ikhiqiza ugesi womgodi?

Kungani injini ikhiqiza ugesi womgodi?

Ugesi osesekethe yesihlalo esiphethe umgodi wemoto ubizwa ngokuthi ugesi we-shaft.

Izimbangela zamanje we-shaft:

ukungalingani kwensimu yamagnetic;

Kukhona ama-harmonics kugesi wamanje;

Ukukhiqizwa nokufakwa okubi, okubangela izikhala zomoya ezingalingani ngenxa yokungajwayelekile kwe-rotor;

Kukhona igebe phakathi kwezindilinga ezimbili ze-semicircles ze-stator core ekhishwayo;

Inani lezingcezu zomgogodla we-stator ezakhiwe yimikhakha yokubeka izinto alifaneleki.

Izingozi: Ubuso noma amabhola enjini azoguguleka bese kwakheka ama-micropores afana namaphuzu, okuzokwenza kube kubi kakhulu ukusebenza kwenjini, kwandise ukulahlekelwa ukungqubuzana nokushisa, futhi ekugcineni kubangele ukuthi i-bearing ishe.

Kungani ama-general motors engasetshenziswa ezindaweni eziphansi?

Ukuphakama kunemiphumela emibi ekukhuphukeni kwezinga lokushisa kwenjini, i-corona yenjini (injini enamandla aphezulu) kanye nokushintsha kwenjini ye-DC.

Izici ezintathu ezilandelayo kufanele ziqashelwe:

Uma ukuphakama kuphakeme, kulapho izinga lokushisa lemoto likhuphuka kakhulu futhi amandla okukhipha ayancipha. Kodwa-ke, lapho izinga lokushisa lehla ngokukhuphuka kokuphakama okwanele ukukhokhela ithonya lokuphakama ekukhuphukeni kwezinga lokushisa, amandla okukhipha alinganisiwe emoto angahlala engashintshi;

Izindlela zokuvimbela i-corona kumele zithathwe uma kusetshenziswa ama-motor ane-voltage ephezulu ezindaweni eziphakeme;

Ukuphakama akukuhle ekushintsheni kwenjini ye-DC, ngakho-ke kufanele kunakwe ekukhetheni izinto zebhulashi lekhabhoni.

Kungani injini kungafanele isetshenziswe ngomthwalo olula?

Uma injini isebenza ngomthwalo omncane, izobangela:

Isici samandla enjini siphansi;

Ukusebenza kahle kwenjini kuphansi.

Uma injini isebenza ngomthwalo omncane, izobangela:

Isici samandla enjini siphansi;

Ukusebenza kahle kwenjini kuphansi.

Kuzobangela ukumoshwa kwemishini kanye nokusebenza okungafanele.

Yiziphi izimbangela zokushisa ngokweqile kwenjini?

Umthwalo mkhulu kakhulu;

isigaba esingekho;

Amapayipi omoya avaliwe;

Isikhathi sokusebenza ngesivinini esiphansi side kakhulu;

Ama-harmonics okunikezwa kwamandla makhulu kakhulu.

Yimuphi umsebenzi okudingeka wenziwe ngaphambi kokufaka injini engasetshenziswa isikhathi eside?

Kala i-stator, ukumelana nokufakwa kokushisa kwesigaba kuya kwesigaba kanye nokumelana nokufakwa kokushisa kwesigaba kuya phansi.

Ukumelana nokushisa R kufanele kuhambisane nefomula elandelayo:

R＞Un/(1000+P/1000)(MΩ)

I-Un: i-voltage elinganisiwe yokugoqa kwenjini (V)

P: Amandla enjini (KW)

Kwenjini ye-Un=380V, R＞0.38MΩ.

Uma ukumelana nokushisa kuphansi, ungenza okulandelayo:

a: Injini isebenza ngaphandle komthwalo amahora amabili kuya kwamathathu ukuze yome;

b: Sebenzisa i-alternating current ene-low-voltage engu-10% ye-voltage elinganisiwe ukuze udlulele ekugoqeni noma uxhume ama-winding ezigaba ezintathu ngokulandelana bese uwabhaka nge-direct current ukuze ugcine i-current ku-50% ye-current elinganisiwe;

c: Sebenzisa ifeni ukuthumela umoya oshisayo noma into yokushisa ukuze ifudumale.

Hlanza injini.

Faka esikhundleni igrisi yokuthwala.

Kungani ngingakwazi ukuqala injini endaweni ebandayo ngokuthanda kwami?

Uma injini igcinwa endaweni ephansi yokushisa isikhathi eside kakhulu, izokwenza lokhu:

Ukufakwa kwe-motor okuqhekekile;

Amafutha okuthwala ayaqina;

Impuphu ye-solder ezinhlanganisweni zezintambo.

Ngakho-ke, injini kufanele ifudumale futhi igcinwe endaweni ebandayo, futhi ama-windings nama-bearings kufanele ahlolwe ngaphambi kokusebenza.

Yiziphi izimbangela zamandla kagesi ezigaba ezintathu angalingani enjinini?

Ukungalingani kwamandla kagesi kwesigaba esithathu;

Igatsha elithile lesigaba ngaphakathi kwemoto linomshini wokushisela ongemuhle noma ukuxhumana okungemuhle;

Ukugoqa kwenjini kujika kuya ekujikeni isekethe esifushane noma isekethe esifushane ukuya phansi noma isigaba kuya esigabeni;

Iphutha lokuxhuma izintambo.

Kungani injini engu-60Hz ingenakuxhunywa kugesi ongu-50Hz?

Lapho kuklanywa imoto, ishidi lensimbi le-silicon ngokuvamile lenziwa ukuthi lisebenze endaweni yokugcwala kwejika le-magnetization. Uma i-voltage yokunikezwa kwamandla ingaguquki, ukunciphisa imvamisa kuzokhulisa i-magnetic flux kanye ne-excitation current, okuholela ekwandeni kwe-motor current kanye nokulahlekelwa kwethusi, okuholela ekwandeni kokwenyuka kwezinga lokushisa kwemoto. Ezimweni ezimbi kakhulu, imoto ingashiswa ngenxa yokushisa kakhulu kwekhoyili.

Yiziphi izimbangela zokulahlekelwa yisigaba semoto?
Ukunikezwa kwamandla kagesi:

Ukuxhumana okungekuhle kweswishi;

I-transformer noma ukuhlukana komugqa;

I-fuse ishaywe umoya.

Isici semoto:

Izikulufu ezisebhokisini lokuxhumanisa injini zikhululekile futhi ukuxhumana akukuhle;

Ukushisela izintambo zangaphakathi okungekuhle;

Ukugoqa kwenjini kuphukile.

Yiziphi izimbangela zokudlidliza okungavamile nomsindo wama-motor?
Izici zemishini:
Ukugcotshwa kwamabhereyitha okungekuhle kanye nokuguguleka kwamabhereyitha;
Izikulufo zokubopha zikhululekile;
Kukhona imfucumfucu ngaphakathi kwenjini.
Izici ze-electromagnetic:
Ukusebenza ngokweqile kwemoto;
Ukungalingani kwamanje kwesigaba sesithathu;
isigaba esingekho;
Iphutha le-short circuit livela kuma-stator kanye nama-rotor windings;
Ingxenye yokushisela ye-rotor yekheji ivulekile futhi ibangela imigoqo ephukile.
Yimuphi umsebenzi okudingeka wenziwe ngaphambi kokuqala injini?

Kala ukumelana kokushisa (kuma-motor ane-voltage ephansi, akufanele kube ngaphansi kuka-0.5MΩ);

Kala i-voltage yokunikezela. Hlola ukuthi izintambo zemoto zilungile yini nokuthi i-voltage yokunikezela ugesi iyahlangabezana yini nezidingo;

Hlola ukuthi imishini yokuqala isesimweni esihle yini;

Hlola ukuthi i-fuse iyafaneleka yini;

Hlola ukuthi injini iphansi yini nokuthi uxhumano lwe-zero lulungile;

Hlola ukudluliswa kwe-transmission ukuze kutholakale amaphutha;

Hlola ukuthi indawo yemoto ifanelekile yini bese ususa izinto ezivuthayo kanye nezinye izinsalela.

Yiziphi izimbangela zokushisa ngokweqile kwe-motor bearing?

Injini ngokwayo:

Amasongo angaphakathi nangaphandle ebhereyi aqinile kakhulu;

Kunezinkinga ngokubekezelela ukuma kwezingxenye kanye nesikhundla, njengokungaguquguquki kahle kwezingxenye ezifana nesisekelo somshini, isembozo sokugcina, kanye nomgodi;

Ukukhetha okungalungile kwama-bearings;

I-bearing ayigcotshwanga kahle noma i-bearing ayihlanzwanga kahle, futhi kukhona ukungcola ku-grease;

umugqa wamanje we-axis.

Ukusetshenziswa:

Ukufakwa okungalungile kweyunithi, njengokugoba kwe-shaft yemoto kanye nedivayisi eqhutshwayo akuhlangabezani nezidingo;

I-pulley idonswa iqine kakhulu;

Ama-bearing awanakekelwa kahle, igrisi ayanele noma isikhathi sokusebenza sesiphelile, futhi ama-bearing ayoma futhi awonakale.

Yiziphi izizathu zokumelana okuphansi kokufakwa kwe-insulation yenjini?

Ukugoqa kumanzi noma kunokungena kwamanzi;

Uthuli noma uwoyela kuyaqongelela ezimbotsheni;

Ukuguga kokushisa;

Ukushisa kwe-lead yemoto noma ibhodi yokuxhuma kuyonakele.