Yuav ua li cas mus saib hauv lub generator rau qhov kev kawm? Self-check thiab generator kho

Generator - yog ib tug zoo ntawm lub hwj chim uas muab lub zog tag nrho engine systems: lub hwj chim, cua txias, tiv cav tseb, ces nws tsis ua hauj lwm yuav inevitably ua lwm yam faults. Kom tsis txhob puas tsuaj, nws yog tsim nyog los systematically kev tshawb nrhiav nws, thiab yog hais tias koj muaj peev xwm tsis txhob muaj teeb meem, tam sim ntawd kho.

Nyob rau hauv no tsab xov xwm uas peb yuav tham txog yuav ua li cas mus saib hauv lub generator rau qhov kev kawm, tsis muaj kev pab los ntawm cov tub txawg. Tab sis ua ntej ntawd cia peb saib cov tsos mob ntawm nws tau faults.

Ntsiab nta ntawm lub generator malfunction

Lub fact tias cov generator tau ua tsis tau tejyam, los yog nyob rau malfunction, kiag hauv qab no nta:

• qhov burning ceeb toom teeb nyob rau hauv ib tug dashboard roj teeb liab, uas qhia hais tias tus alternator yog tsis them, los yog ua tsis txaus tam sim no tus nqi;
• lossi raws lub roj teeb;
• faults nyob rau hauv hluav taws xob cov khoom lag luam (teeb pom kev zoo thiab taw o, multimedia, cov cua kub thiab cua) thaum lub engine yog khiav;
• cov tsos nyob rau hauv lub neeg nrog caij compartment (engine compartment) ntawm tus yam ntxwv ntawm tsw ntawm burnt;
• ntev li cua sov ntawm lub stator ntawm lub generator;
• hum (rustling xuav) generator.

Cov tsos ntawm cov cim - ib tug loj heev yog vim li cas yuav ua rau ib tug mob. Qhov no tsis tas siv rau ib lub rooj, raws li saib kev kawm ntawm lub generator nws yog ua tau thiab nyob rau hauv lub tsev, tshwj xeeb tshaj yog yog tias koj muaj txawm lub slightest kev txawj nrog lub cev muaj zog tester. Tiam sis ua ntej, peb tham txog lub ntsiab breakdowns.

loj txhaum

Cov generator tej zaum yuav muaj ib tug txhaum ob qho tib si txhua yam thiab hluav taws xob xwm. Cov muaj xws li:

• tsis ua hauj lwm ntawm lub voltage regulator;
• tsis ua hauj lwm ntawm lub diode choj (muab daws kom tiav chav tsev);
• circuiting lub rotor teb winding;
• circuiting lub stator windings;
• txhuam coj;
• kev coj tus kheej coj.

Tom ntej no peb yuav tham txog yuav ua li cas mus saib hauv lub generator rau qhov kev kawm ntawm lawv tus kheej, raws li nyob rau hauv lub tam sim no cov tsos mob thiab tau faults.

Kos rau lub voltage regulator

Lub xws yog tsim los tswj cov generated voltage ua ntej daim ntawv thov mus rau hauv Circuit Court-board lub tsheb, xws li nyob rau hauv lub roj teeb rau recharging. Yuav kom txiav txim seb qhov kev kho mob ntawm koj tus kheej koj yuav tsis pub xyuas cov coupons qhov generator, es, tus nqi ntawm cov voltage nkag lawv mus rau lub terminals ntawm lub roj teeb. Nyob ntawm seb lub ua thiab qauv ntawm lub tsheb, nws yuav ua tau los ntawm 13,5 rau 15.5 V. Yog li ntawd, ua ntej khij lub generator regulator kom paub tseeb tias nws yog tsim nyog los paub raws nraim li cas voltage nws yuav tsum ua. Cov ntaub ntawv no muaj peev xwm yuav gleaned los ntawm cov phau ntawv tswv.

Yuav ua li cas mus saib hauv lub generator multimeter? Rau no mus tsev nyob rau hauv lub voltmeter hom thiab yog polarity, txuas lub probes mus rau lub roj teeb terminals nrog lub cav nres. Lub voltage nyob rau hauv ntau 12-12,8 V. tom ntej Pib lub engine thiab rov hais dua cov txheej txheem. Voltage roj teeb terminals yuav tsum nce mus rau 13.5-15.5 V. Tsuas yog nyob rau cov ntaub ntawv no, xws li yuav suav hais tias workable. Nce los yog yuav txo tau cov voltage nqi, on qhov tsis tooj, nws hais tias nws yog faulty.

Yuav ua li cas mus xyuas ib tug diode choj generator, tsis tshem nws los ntawm lub tsheb

Diode choj ua lub luag hauj lwm ntawm ib tug rectifier converting lub alternating tam sim no uas ua los ntawm cov generator rau DC. Feem ntau nws muaj rau semiconductor diodes, peb cov uas yog "positive", lwm yam peb - .. "tsis zoo", piv txwv li, tus thawj tam sim no yog dhau nyob rau hauv ib tug coj, lub thib ob - nyob rau hauv lwm. rectifier check yuav nqa tawm ob leeg nrog lub generator muab tshem tawm, thiab tsis muaj dismantling. Xav txog ob yam kev xaiv.

Ua ntej koj yuav mus saib ib tug diode choj generator, tsis tshem nws, koj yuav tsum disconnect los ntawm nws thiab los ntawm tag nrho cov nyob ntawm tej ntawm lub voltage regulator tom qab tshem tawm cov davhlau ya nyob twg ntawm "hnyav" los ntawm lub accumulator. Yuav pib, xyuas qhov rectifier rau ib tug luv luv Circuit Court. Txoj siav multimeter ohmmeter hom adjoin lub zoo (liab) kev xeem lead mus rau lub xaus "30" generator (zoo hu choj), thiab ib tug tsis zoo - ib tug generator vaj tse nyob. Thaum serviceable rectifier readings yuav yuav infinity. Yog hais tias cov kuj ntawm ib tug ob peb ohms, puas rectifier.

Tam sim no wb tham txog yuav ua li cas mus saib alternator diode choj rau tej neej puas. Peb pib nrog lub zoo diodes. Dua txuas zoo sojntsuam coj mus rau tus choj hu (tso zis "30"), thiab ib tug tsis zoo - lub bolts (nkhaus) fastening rectifier. Kuj nyob rau hauv cov ntaub ntawv no yuav tsum tau yuav infinity. Txwv tsis pub, ib los yog ntau tshaj diodes punched.

Peb npaj mus rau lub "tsis zoo" semiconductors. Liab xeem tester xa mus rau lub bolts phiaj lub rectifier, dub - mus rau lub generator vaj tse nyob. Nyhav infinity kuj - ib tug Nco ntsoov kos npe hais tias tag nrho diodes.

Kos rau lub rotor winding

Ib tug ntau ua hauj lwm ntawm lub cev muaj zog generator Circuit Court yog winding. Qhov no yuav tshwm sim raws li ib tug tshwm sim ntawm ib tug ntse sawv nyob rau hauv voltage, dej splashing, hnav txhuam lwm yam Txij thaum lub multimeter mus xyuas generator windings rau nws lub sam xeeb yuav tsuas muaj tag nrho cov kev nkag rau lawv, yuav tsum tau kom tus dismantling ntawm tag nrho los ua ke. Yuav kom piav qhia txog tus txheej txheem no, peb yuav tsis tau, vim sib txawv tsheb nws txawv. Ua ntej ntawm daim tshev rau lub operability txhaj koob tshuaj tivthaiv generator rotor winding, nws yog lawm tsim nyog rau lauj.

Tom qab extraction ntawm lub rotor rau nws ncej nrhiav hu rings. Tsuas yog ob tug ntawm lawv. Txuas lub multimeter nyob rau hauv ohmmeter hom, txuas mus rau cov probes rings. Tus ntaus ntawv yuav tsum tau muab cov kuj tsis pub dhau 2-5 ohm. Nws yog ib txwm muaj nuj nqis rau cov uas tsis-puas rotor. Ntau dua kuj qhia cov neeg pluag hu ntawm lub rings. Nyob rau hauv lub rov qab cov ntaub ntawv, thaum nyeem nyob ze rau zero, nws yog yuav muaj lub interturn luv luv Circuit Court.

Yuav ua li cas mus saib hauv lub generator rau qhov kev kawm ntawm cov stator windings

Peb tig mus rau lub stator. Nws muaj ob peb windings, txhua tus uas yuav tsum tau soj ntsuam nyias. Tab sis ua ntej hais tias nws yog tsim nyog los disconnect tus nyob ntawm tej txuas lub terminals ntawm lub windings thiab ib tug diode choj.

Multimeter probes muaj nyob rau hauv ib tug ohmmeter hom qho kev cob cog rua rau cov qhov tso zis ntawm txhua tus ntawm cov windings. Thaum cov ua hauj lwm kuj muaj cov kauj yuav tsum kwv yees li 0.2 ohms.

Tom ntej no, ntsuas cov kuj ntawm cov davhlau ya nyob twg (zero) thiab cov stator davhlau ya nyob twg ntawm ib yam ntawm cov windings. Nws yuav tsum tsis txhob yuav tsawg tshaj li 0.3 ohms.

Lov txhuam generator

Yog hais tias yog li lub generator raug tshem tawm thiab rhuav, tsis txhob raug mob mus xyuas thiab kev mob ntawm txhuam. Lawv yog yooj yim puas vim ntev-lub sij hawm kev lag luam los yog raws li ib tug tshwm sim ntawm cov teeb meem tshwm sim los ntawm misalignment ntawm lub rotor ncej. Yog hais tias txhuam muaj ib tug loj coj ib co kua nplaum, lawv geometrical daim ntawv lawm, lawv yuav tsum tau hloov.

Hnav ntawm lub bearings ntawm lub generator

Automotive alternator muaj ob tug bearings. Ib tug ntawm lawv yog tsau mus rau lub rotor ncej, ib tug thib ob xovxwm-haum mus rau hauv lub central feem ntawm lub hau. Hum, xuav, uas yog mus txog los ntawm cov generator thaum lub sij hawm kev lag luam ntawm lub cav - qhov no yog ib tug paub tias ib co ntawm cov bearings tau tuag lawm. Txuam cov tsos mob tej zaum yuav tshav kub generator casing. Nrhiav cov tsos mob no, tsuag tsuag los hloov lub bearings. Txwv tsis pub qhov no yuav ua rau misalignment ntawm lub rotor ncej los yog wedging nrog tag nrho nws cov txim.

Check bearings tau los ntawm tshem cov generator siv thiab tau muab nws txhais tes ncej. Yog hais tias lub rotor rotates yooj yim thiab ntseeg nkaws thiab backlash, cov kabmob tseem ua hauj lwm. Yog hais tias txoj kev sib hloov yog ib qhov nyuaj, los yog yog hais tias tus ncej muaj ib tug backlash, tsis txhob rub rau cov kev hloov ntawm lub bearings.