xov xwm

Kev Taw Qhia Txog Cov Bearings Uas Muaj Hluav Taws Xob

 

Ua ntej, lub hom phiaj ntawmcov bearings insulating hluav taws xob

 

Cov bearings uas muaj hluav taws xob rwb thaiv tsev kuj yog cov bearings rwb thaiv tsev, thiab cov bearings rwb thaiv tsev hluav taws xob suav nrog txhua cov bearings dov uas tuaj yeem tiv thaiv kev hla ntawm hluav taws xob. Cov bearings nrog cov txheej ceramic, ob qho tib si sab hauv thiab sab nraud, hu ua cov bearings rwb thaiv tsev. Cov txheej ceramic tiv thaiv kev hla ntawm hluav taws xob thiab muaj peev xwm rwb thaiv tsev.

 

Cov ntsiab lus ntawm kev dovcov kabmob sib xyaw ua keyog ua los ntawm cov khoom siv ceramic thiab yog li ntawd kuj muaj cov khoom rwb thaiv tsev. Nws yog ua los ntawm cov khoom dov kom tiv thaiv kev hla ntawm hluav taws xob.

 

Qhov thib ob, kev xaiv ntawm kev rwb thaiv tsev

 

Feem ntau, nws nyuaj heev rau tshem tawm qhov sib txawv ntawm lub zog sab hauv ntawm lub bearing. Txawm li cas los xij, yog tias peb tuaj yeem nres lossis txo qhov tam sim no ntws los ntawm lub bearing, peb tuaj yeem tiv thaiv kev xeb galvanic ntawm lub bearing. Muaj ntau hom insulated bearings tam sim no tsim rau lub hom phiaj no. Nyob ntawm hom voltage tsim, txoj kev rwb thaiv tsev ntawm lub bearing raug xaiv.

 

1. Qhov hluav taws xob uas tau tsim los ntawm tus ncej

 

2. Qhov hluav taws xob ntawm lub ncej thiab lub rooj zaum ntawm lub cev

 

Yog tias qhov hluav taws xob tshwm sim ntawm tus ncej thiab lub tsev, qhov tam sim no ntws los ntawm txhua tus kabmob hauv tib qho kev coj. Qhov no feem ntau yog vim qhov hluav taws xob hom sib xws coj los ntawm lub converter zaus. Hauv qhov no, cov kabmob ntawm ob qho kawg ntawm lub cev muaj zog yuav tsum tau rwb thaiv tsev, thiab qhov txiav txim siab hauv kev xaiv ntawm rwb thaiv tsev yog cov yam ntxwv ntawm lub sijhawm ntawm qhov tam sim no thiab hluav taws xob. Hauv qhov xwm txheej ntawm DC hluav taws xob lossis AC hluav taws xob tsawg zaus, qhov cuam tshuam rwb thaiv tsev nyob ntawm tus nqi tsis kam ntawm cov txheej rwb thaiv tsev; Hauv qhov xwm txheej ntawm AC hluav taws xob siab zaus (feem ntau pom hauv cov khoom siv siv cov converter zaus), nws nyob ntawm qhov reactance capacitive ntawm rwb thaiv tsev.

 

3. Qhov xwm txheej ib txwm muaj ntawm kev puas tsuaj los ntawm kev overcurrent

 

1. Cov kab ntawm cov kev sib tw thiab cov ntsiab lus dov

 

Txawm hais tias lub bearing siv hluav taws xob los ntawm hluav taws xob ncaj qha lossis hluav taws xob hloov pauv (zaus qis dua MHz), peb tuaj yeem pom tib hom kev ua tsis tiav hauv lub bearing.

 

2. Cov cim qhia txog kev tawg ntawm cov hlau nplaum

 

Qhov hu ua electro-erosion groove yog hais txog qhov txuas ntxiv mus tas li ntawm qhov chaw raceway hauv kev coj ua haujlwm. Feem ntau ntawm cov xwm txheej no yog tshwm sim los ntawm qhov tam sim no hla dhau ntawm cov kabmob.

 

Plaub, nyob rau hauv lub tshuab kuaj mob kom paub meej tias qhov puas tsuaj ntawm cov kabmob overcurrent

 

Tsuas yog los ntawm kev luam theej duab electron microscopy (SEM) uas nws pom tseeb tias yuav luag txhua qhov chaw puas tsuaj tau npog nrog cov qhov thiab μm solder joints.

 

Thib tsib, cov txheej txheem ntawm kev puas tsuaj

 

Cov qhov thiab cov pob qij txha no yog tshwm sim los ntawm cov hluav taws xob tawm ntawm cov chaw me me ntawm qhov chaw ntawm qhov chaw sib tw thiab cov khoom dov. Hauv lub xeev uas muaj roj nplua nyeem tag nrho, cov hluav taws xob tawg los ntawm qhov chaw tsis muaj zog ntawm cov roj zaj duab xis, thiab lub zog tsim los ntawm lub hluav taws xob hluav taws xob yaj cov hlau uas nyob ib sab tam sim ntawd.

 

Hauv qhov xwm txheej sib xyaw ua ke (hlau-rau-hlau sib cuag), cov chaw sib ze kuj sib xyaw, tab sis raug sib cais sai sai thaum cov kabmob txav mus los. Hauv ob qho tib si, cov khoom siv tawm ntawm qhov chaw hlau thiab tam sim ntawd khov mus rau hauv qhov sib koom ua ke. Kuj tseem muaj qee qhov sib koom ua ke uas sib xyaw nrog cov roj nplua nyeem thiab lwm yam uas tau tso rau ntawm qhov chaw sib tw. Thaum cov kabmob txuas ntxiv mus, cov sib koom ua ke thiab cov qhov no kuj dov thiab du. Nyob rau hauv qhov kev ua ntawm hluav taws xob tas mus li, cov txheej txheem ntawm kev yaj thiab khov rov ua dua ntau zaus ntawm ib txheej nyias nyias ntawm qhov chaw sib ze.

 

6. Qhov cuam tshuam ntawm tam sim no rau cov roj nplua nyeem

 

Cov hluav taws xob kuj tseem tuaj yeem muaj kev cuam tshuam tsis zoo rau cov roj nplua nyeem. Cov roj hauv paus thiab cov khoom ntxiv yog oxidized thiab tawg. Qhov kev hloov pauv no tuaj yeem pom tseeb hauv infrared spectrogram. Kev laus ua ntej thiab kev sib sau ua ke ntawm cov hlau ferrous tuaj yeem ua rau kev ua haujlwm roj nplua nyeem tsis zoo thiab kuj tuaj yeem ua rau overheating ntawm cov bearings.