1. Vim li cas lub cev muaj zog tsim cov ncej tam sim no?
Tam sim no nyob rau hauv lub cev muaj zog ncej --- bearing seat --- puag ncig yog hu ua ncej tam sim no.
Ua rau ntawm ncej tam sim no:
(1) Sib nqus teb asymmetry;
(2) Muaj kev sib haum xeeb hauv cov khoom siv tam sim no;
(3) Kev tsim khoom thiab kev teeb tsa tsis zoo, thiab qhov sib txawv ntawm huab cua tsis sib xws vim qhov eccentricity ntawm lub rotor;
(4) Nws muaj qhov sib txawv ntawm ob lub voj voog ntawm lub detachable stator core;
(5) Tus naj npawb ntawm cov kiv cua-zoo li tus stator core tsis raug xaiv kom raug.
ua mob:
Qhov saum npoo ntawm lub cev muaj zog los yog lub pob yog eroded, tsim cov ntsiab lus zoo li micropores, uas ua rau cov kev ua haujlwm ntawm cov kabmob tsis zoo, ua rau muaj kev sib txhuam tsis zoo thiab tsim hluav taws xob, thiab thaum kawg ua rau cov kabmob hlawv tawm.
tiv thaiv:
(1) Tshem tawm cov hluav taws xob sib nqus sib nqus thiab lub zog sib haum xeeb (xws li txhim kho AC reactor nyob rau sab tso zis ntawm lub inverter);
(2) Thaum tsim lub cev muaj zog, insulate lub rooj zaum bearing thiab lub hauv paus ntawm zawv zawg bearings, thiab insulate lub nplhaib sab nrauv thiab kawg npog ntawm cov kabmob dov.
2. Vim li cas tsis tuaj yeem siv lub tshuab dav dav hauv thaj chaw toj siab?
Qhov siab muaj qhov tsis zoo rau lub cev kub nce, lub cev muaj zog corona (lub cev muaj zog hluav taws xob siab) thiab kev hloov pauv ntawm DC motors. Peb yam nram qab no yuav tsum tau them nyiaj rau:
(1) Qhov siab dua qhov siab, qhov siab dua qhov kub ntawm lub cev muaj zog thiab lub zog tso zis me me. Txawm li cas los xij, thaum huab cua kub qis nrog qhov nce siab txaus kom them nyiaj rau qhov siab ntawm qhov siab ntawm qhov kub nce, qhov ntsuas tso zis hluav taws xob ntawm lub cev muaj zog tuaj yeem tsis hloov pauv;
(2) Kev ntsuas tiv thaiv kab mob yuav tsum tau ua thaum lub tshuab hluav taws xob siab siv rau ntawm toj siab;
(3) Qhov siab yog qhov tsis zoo rau kev sib hloov ntawm DC lub cev muaj zog, yog li kev saib xyuas yuav tsum tau them rau kev xaiv cov khoom siv roj carbon txhuam.
3. Vim li cas lub cav yuav tsum tsis txhob khiav hauv lub teeb?
Thaum lub cev muaj zog khiav nrog lub teeb load, nws yuav ua rau:
(1) Lub zog ntawm lub cev muaj zog tsawg;
(2) Kev ua haujlwm ntawm lub cev muaj zog tsawg.
Nws yuav ua rau cov khoom siv khib nyiab thiab kev ua haujlwm tsis zoo.
4. Dab tsi yog vim li cas rau qhov overheating ntawm lub cev muaj zog?
(1) Lub load loj dhau lawm;
(2) tsis muaj theem;
(3) Cov pa cua yog thaiv;
(4) Lub sijhawm ua haujlwm qis qis ntev ntev;
(5) Lub harmonics ntawm lub hwj chim mov yog loj heev.
5. Dab tsi yuav tsum tau ua ua ntej lub tshuab tsis siv lub tshuab ua haujlwm ntev?
(1) Ntsuas qhov rwb thaiv tsev tsis kam ntawm cov theem ntawm stator thiab windings thiab windings rau hauv av.
Rwb thaiv tsev tsis kam R yuav tsum ua raws li cov qauv hauv qab no:
R＞Un/(1000 plus P/1000)(MΩ)
Un: lub cev muaj zog winding ntsuas voltage (V)
P: Lub cev muaj zog (KW)
For the motor of Un=380V, R>0.38MΩ.
Yog tias cov rwb thaiv tsev tsis zoo, koj tuaj yeem:
a: Qhuav lub cev muaj zog tsis muaj load rau 2 mus rau 3 teev;
b: Siv 10 feem pua ntawm cov ntsuas hluav taws xob qis hluav taws xob hloov pauv tam sim no kom dhau mus rau hauv cov cua ntsawj ntshab lossis txuas peb-theem windings hauv series thiab tom qab ntawd siv cov hluav taws xob ncaj qha los ci, ua kom cov tam sim no ntawm 50 feem pua ntawm cov ntsuas tam sim no;
c: Siv lub kiv cua xa cov cua kub los yog cua sov kom sov.
(2) Ntxuav lub cev muaj zog.
(3) Hloov cov roj bearing.
6. Vim li cas lub cev muaj zog hauv qhov chaw txias tsis tuaj yeem pib arbitrarily?
Yog tias lub cev muaj zog raug rau qhov kub thiab txias ntev dhau, nws yuav:
(1) Lub cev muaj zog rwb thaiv tsev tawg;
(2) Cov roj bearing yog khov;
(3) Soldering hmoov ntawm hlau pob qij txha.
Yog li ntawd, lub cev muaj zog yuav tsum tau ua kom sov thiab khaws cia rau hauv qhov chaw txias, thiab cov windings thiab bearings yuav tsum tau kuaj xyuas ua ntej ua haujlwm.
7. Dab tsi yog vim li cas rau qhov tsis sib npaug ntawm peb-theem tam sim no ntawm lub cev muaj zog?
(1) Tsis sib npaug peb-theem voltage;
(2) Kev vuam tsis zoo lossis kev sib cuag tsis zoo ntawm qee theem ceg hauv lub cev muaj zog;
(3) Tig-rau-tig luv luv Circuit Court ntawm lub cev muaj zog winding lossis luv luv Circuit Court rau hauv av lossis theem mus rau theem;
(4) Kev teeb tsa tsis raug.
8. Vim li cas ho tsis muaj 60Hz lub cev muaj zog txuas nrog 50Hz fais fab mov?
Thaum lub cev muaj zog tsim, cov ntawv silicon steel feem ntau ua rau ua haujlwm hauv thaj tsam saturation ntawm cov hlau nplaum sib nqus. Thaum lub zog hluav taws xob tsis tu ncua, txo qhov zaus yuav ua rau cov hlau nplaum sib nqus thiab cov excitation tam sim no, ua rau muaj kev nce hauv lub cev muaj zog tam sim no thiab tooj liab noj, uas thaum kawg yuav ua rau qhov kub nce ntawm lub cev muaj zog. Hauv qhov xwm txheej hnyav, lub cev muaj zog yuav raug hlawv vim overheating ntawm lub kauj.
9. Dab tsi yog vim li cas rau qhov tsis muaj theem ntawm lub cev muaj zog?
Fais fab mov:
(1) Kev sib cuag tsis zoo ntawm qhov hloov;
(2) Lub transformer lossis kab yog txiav;
(3) Lub fuse yog cua tshuab.
Lub cev muaj zog:
(1) Lub cev muaj zog hlws ris lub thawv yog xoob thiab tsis zoo;
(2) Tsis zoo hauv kev xaim vuam;
(3) Lub cev muaj zog winding yog txiav.
10. Dab tsi yog vim li cas rau qhov txawv txav thiab lub suab ntawm lub cev muaj zog?
Mechanical yam:
(1) Cov kabmob tsis zoo lubricated thiab cov kabmob yog hnav;
(2) Lub fastening screws yog xoob;
(3) Muaj cov khoom siv hauv lub cev muaj zog.
Electromagnetic nam:
(1) Lub cev muaj zog yog overloaded;
(2) Tsis sib npaug peb-theem tam sim no;
(3) tsis muaj theem;
(4) Stator thiab rotor windings muaj qhov ua txhaum luv luv;
(5) Lub vuam ib feem ntawm lub tawb rotor yog sib cais thiab ua rau cov kab tawg.
11. Dab tsi yuav tsum tau ua ua ntej pib lub cev muaj zog?
(1) Ntsuas cov rwb thaiv tsev tiv thaiv (rau cov tshuab hluav taws xob tsawg, nws yuav tsum tsis txhob qis dua 0.5MΩ);
(2) Ntsuas qhov hluav taws xob qhov hluav taws xob. Xyuas seb lub tshuab hluav taws xob puas yog qhov tseeb thiab seb qhov hluav taws xob hluav taws xob puas ua tau raws li qhov yuav tsum tau ua;
(3) Tshawb xyuas seb cov khoom siv pib puas zoo;
(4) Xyuas seb lub fuse puas haum;
(5) Txheeb xyuas qhov av ntawm lub cav thiab seb qhov kev sib txuas xoom puas zoo;
(6) Xyuas seb lub tshuab kis tau tus mob puas;
(7) Tshawb xyuas seb qhov chaw ntawm lub cev puas tsim nyog, thiab tshem tawm cov nplaim taws thiab lwm yam khoom siv.
12. Dab tsi yog vim li cas rau overheating ntawm lub cev muaj zog bearing?
Lub cev muaj zog nws tus kheej:
(1) Qhov haum ntawm lub nplhaib sab hauv thiab sab nraud ntawm cov kabmob yog nruj heev;
(2) Muaj teeb meem nrog cov duab thiab txoj hauj lwm kam rau ntawm qhov chaw, xws li cov coaxiality tsis zoo ntawm lub hauv paus tshuab, kawg npog, ncej thiab lwm yam;
(3) Kev xaiv tsis raug ntawm cov kabmob;
(4) Cov kabmob yog lubricated tsis zoo los yog cov kabmob tsis huv, thiab muaj cov khoom siv roj hauv cov roj;
(5) Ncej tam sim no.
Kev siv:
(1) Kev teeb tsa tsis raug ntawm chav tsev, xws li coaxiality ntawm lub cev muaj zog thiab cov khoom siv tsav;
(2) Lub pulley rub yog nruj heev;
(3) Cov kabmob tsis muaj kev tswj xyuas zoo, cov roj tsis txaus lossis dhau qhov kev pabcuam lub neej, thiab nws yuav qhuav thiab tsis zoo.
13. Yuav ua li cas yog vim li cas rau qhov tsawg rwb thaiv tsev tsis kam ntawm lub cev muaj zog?
(1) Lub winding yog damp lossis muaj dej nkag;
(2) Cov plua plav lossis roj yog khaws cia rau ntawm qhov cua;
(3) rwb thaiv tsev laus;
(4) Lub rwb thaiv tsev ntawm lub cev muaj zog hlau hlau lossis lub rooj tsav xwm thaiv puas lawm.
