Kutheni i-motor ivelisa i-shaft current?

Kutheni i-motor ivelisa i-shaft current?

Ikhoyo ngoku kwisekethe ye-motor-bearing seat-base circuit ibizwa ngokuba yi-shaft current.

Izizathu zeshaft yangoku:

i-asymmetry ye-magnetic field;

Kukho i-harmonics kumbane wangoku;

Ukuveliswa kunye nofakelo olulambathayo, okubangela izithuba zomoya ezingalinganiyo ngenxa yokungangeni kwe-rotor;

Kukho umsantsa phakathi kwee-semicircular ezimbini ze-stator core ekhutshwayo;

Inani leengcezu ze-stator core eyenziwe ngamacandelo e-stacking ayifanelekanga.

Iingozi: I-motor bearing surface okanye iibhola ziya kutshatyalaliswa kwaye i-micropores efana nenqaku iya kwenziwa, eya kuba nzima ngakumbi ukusebenza kwe-bearing operation, yandise ilahleko ye-friction kunye nobushushu, kwaye ekugqibeleni ibangele ukuvutha.

Kutheni le nto iinjini eziqhelekileyo zingasetyenziswa kwiindawo ezithe tyaba?

Umphakamo uneziphumo ezibi ekunyukeni kobushushu bemoto, i-motor corona (imoto yombane ophezulu) kunye ne-DC motor commutation.

Le miba mithathu ilandelayo kufuneka iqatshelwe:

Ukuphakama komphakamo, kokukhona ukunyuka kwamaqondo obushushu enjini kwaye kuncinci amandla aphumayo.Nangona kunjalo, xa iqondo lokushisa linciphisa ngokunyuka kokuphakama okwaneleyo ukuhlawulela impembelelo yokuphakama kweqondo lokushisa, amandla alinganisiweyo okukhutshwa kwemoto anokuhlala engatshintshi;

Amanyathelo othintelo lweCorona kufuneka athatyathwe xa iimotor ezinevoltage ephezulu zisetyenziswa kwithafa;

Umphakamo awulunganga kwi-DC motor commutation, ke ingqwalasela kufuneka ihlawulwe ekukhetheni izixhobo ze-carbon brush.

Kutheni le nto i-motor ingasetyenziswa ngomthwalo olula?

Xa injini isebenza nomthwalo olula, iya kubangela:

Amandla eenjini aphantsi;

Ukusebenza kweMoto kuphantsi.

Xa injini isebenza nomthwalo olula, iya kubangela:

Amandla eenjini aphantsi;

Ukusebenza kweMoto kuphantsi.

Iya kubangela inkcitho yezixhobo kunye nokusebenza ngokungenamali.

Zeziphi izizathu zokufudumeza kwemoto?

Umthwalo mkhulu kakhulu;

isigaba esilahlekileyo;

Imibhobho yomoya ivaliwe;

Ixesha lesantya esisezantsi lide kakhulu;

Unikezelo lwamandla eharmonics lukhulu kakhulu.

Nguwuphi umsebenzi omele wenziwe ngaphambi kokuba kufakwe injini engazange isetyenziswe ixesha elide?

Ukulinganisa i-stator, ukunyanzeliswa kwe-insulation phase-to-phase kunye ne-winding-to-ground insulation resistance.

I-insulation resistance resistance R kufuneka yanelise le fomyula ilandelayo:

R＞Un/(1000+P/1000)(MΩ)

Un: amandla ombane alinganisiweyo wokujika kwemoto (V)

P: Amandla eMoto (KW)

Ye-Un=380V motor, R＞0.38MΩ.

Ukuba ukuxhathisa kwe-insulation kuphantsi, unako:

a: I-motor isebenza ngaphandle komthwalo kwiiyure ezi-2 ukuya kwezi-3 zokomisa;

b: Sebenzisa i-low-voltage alternating current ye-10% ye-voltage elinganisiweyo ukuze udlule kwi-winding okanye udibanise i-winding phases ezintathu kwi-series uze ubhaka ngokuthe ngqo ukugcina i-current kwi-50% ye-current rated current;

c: Sebenzisa ifeni ukuthumela umoya oshushu okanye into yokufudumeza ukufudumeza.

Coca injini.

Tshintsha igrisi yokuzala.

Kutheni ndingakwazi ukuqalisa injini kwindawo ebandayo xa ndithanda?

Ukuba i-motor igcinwa kwindawo yobushushu obuphantsi ixesha elide, iya:

I-motor insulation yaqhekeka;

Ukuthwala igrisi kuyaba ngumkhenkce;

I-powder ye-solder kumalungu ocingo.

Ke ngoko, i-motor kufuneka ifudunyezwe kwaye igcinwe kwindawo ebandayo, kwaye ii-windings kunye neebheringi kufuneka zihlolwe ngaphambi kokusebenza.

Zeziphi izizathu zokungalungelelani kwesigaba sesithathu samanje kwimoto?

Ukungalingani kwamandla ombane kwizigaba ezithathu;

Isebe lesigaba esithile ngaphakathi kwi-motor ine-welding embi okanye uqhagamshelwano olubi;

I-motor winding ijika-ukujika isiphaluka esifutshane okanye isiphaluka esifutshane ukuya kumhlaba okanye isigaba-kwisigaba;

Impazamo yocingo.

Kutheni le nto injini ye-60Hz ingadityaniswa kubonelelo lwamandla oluyi-50Hz?

Xa uyila i-motor, i-silicon sheet yentsimbi yenziwa ngokubanzi ukuba isebenze kwindawo yokugcwala kwijiko lemagnethi.Xa amandla ombane ahlala engaguquki, ukunciphisa ukuphindaphinda kuya konyusa i-flux yamagnetic kunye ne-excitation yangoku, okukhokelela ekonyukeni kwemoto yangoku kunye nokulahleka kobhedu, okukhokelela ekwenyukeni kobushushu bemoto.Kwiimeko ezinzima, i-motor inokutshiswa ngenxa yokushisa kwekhoyili.

Ziziphi izizathu zokulahleka kwesigaba semoto?
Ukunikezwa Amandla:

Uqhagamshelwano olubi;

I-transformer okanye ikhefu lomgca;

Ifuse iyavuthelwa.

Umba wemoto:

Izikrufu kwibhokisi yokudityaniswa kweemoto zikhululekile kwaye uqhagamshelwano lumbi;

I-welding ye-wiring engalunganga yangaphakathi;

Imotor winding yaphukile.

Zeziphi izizathu zokungcangcazela okungaqhelekanga kunye nesandi seenjini?
Imiba yoomatshini:
I-lubrication yokuthwala kakubi kunye nokuguga;
Izikrufu zokuqinisa zikhululekile;
Kukho inkunkuma ngaphakathi kwinjini.
Imiba yoMbane:
Umsebenzi wokulayisha ngaphezulu kweMotor;
Ukungalingani kwangoku kwizigaba ezithathu;
isigaba esilahlekileyo;
Iphutha lesiphaluka esifutshane senzeke kwi-stator kunye ne-rotor windings;
Inxalenye ye-welding ye-rotor ye-cage ivulekile kwaye ibangela imivalo ephukileyo.
Nguwuphi umsebenzi ekufuneka wenziwe ngaphambi kokuba uqalise injini?

Ukulinganisa ukuxhatshazwa kwe-insulation (kwi-motor low-voltage, akufanele ibe ngaphantsi kwe-0.5MΩ);

Ukulinganisa amandla ombane.Khangela ukuba i-wiring ye-motor ichanekile kwaye ingaba i-voltage yonikezelo lwamandla iyahlangabezana neemfuno;

Khangela ukuba isixhobo sokuqalisa sikwimeko entle kusini na;

Khangela ukuba i-fuse ifanelekile na;

Jonga ukuba imotor isekelwe kwaye uqhagamshelo lweqanda lulungile;

Qwalasela ukosulela iziphene;

Jonga ukuba indawo yemoto ifanelekile kwaye ususe izinto ezinokutsha kunye nobunye ubumdaka.

Zeziphi izizathu zokufudumeza kwemoto?

Injini ngokwayo:

Amakhonkco angaphakathi nangaphandle okuthwala aqine kakhulu;

Kukho iingxaki kwimilo kunye nokunyamezelwa kwesikhundla samalungu, anje nge-coaxiality engalunganga yamalungu anje ngesiseko somatshini, isigqubuthelo sokuphela, kunye neshaft;

Ukukhetha okungafanelekanga kweebheringi;

Ukuthwala kuhlanjululwe kakubi okanye ukuthwala akucocwanga ngokucocekileyo, kwaye kukho i-debris kwigrisi;

i-axis yangoku.

Ukusetyenziswa:

Ukufakwa okungafanelekanga kweyunithi, njengokubambisana kwe-motor shaft kunye nesixhobo esiqhutywayo asihambelani neemfuno;

Ipuli itsalwa yaqina kakhulu;

Iibheringi azigcinwanga kakuhle, igrisi ayanelanga okanye ubomi benkonzo buphelelwe lixesha, kwaye iibheringi zome kwaye ziwohloke.

Zeziphi izizathu zokunganyangeki kokugquma kwemoto?

Ukujija kumanzi okanye kunokungena kwamanzi;

Uthuli okanye ioli iqokelela kwii-windings;

Ukuguga kwe-insulation;

I-insulation ye-motor lead okanye ibhodi yocingo yonakele.