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Hoʻolauna i nā bearings insulated uila

 

ʻO ka mea mua, ke kumu onā bearings hoʻokaʻawale uila

 

ʻO nā mea i kapa ʻia he mau bearings insulated uila he mau bearings insulated nō hoʻi, a ʻo nā bearings insulated uila e komo pū ana me nā bearings ʻōwili āpau e hiki ke pale i ka hele ʻana o ke au uila. ʻO nā bearings me ka uhi keramika, nā apo o loko a me waho, ua kapa ʻia he mau bearings insulated. Pale ka uhi keramika i ka hele ʻana o ke au uila a loaʻa iā ia ka hiki ke hoʻokaʻawale.

 

ʻO nā mea ʻōwili onā bearings hybridua hana ʻia me ka keramika a no laila he mau waiwai hoʻokaʻawale. Hana ʻia ia me nā mea ʻōwili e pale ai i ka hele ʻana o ke au uila.

 

ʻO ka lua, ke koho ʻana o ka insulation bearing

 

Ma keʻano laulā, he mea paʻakikī loa ke hoʻopau loa i ka ʻokoʻa hiki i loko o ka bearing. Eia nō naʻe, inā hiki iā mākou ke hoʻōki a hōʻemi nui paha i ke kahe o ke au ma o ka bearing, hiki iā mākou ke pale i ka pala galvanic o ka bearing. Ua hoʻolālā ʻia kahi ākea o nā bearings insulated no kēia kumu. Ma muli o ke ʻano o ka voltage i hana ʻia, ua koho ʻia ke ʻano insulation o ka bearing.

 

1. ʻO ke ana uila i hoʻokomo ʻia i hana ʻia ma ke koʻokoʻo

 

2. ʻO ke anakahi uila ma waena o ke koʻokoʻo a me ka noho hali

 

Inā loaʻa ka uila ma waena o ke koʻokoʻo a me ka hale, e kahe ana ke au ma o kēlā me kēia bearing ma ke kuhikuhi like. ʻO ke kumu nui o kēia ma muli o ke uila maʻamau i lawe ʻia e ka mea hoʻololi alapine. I kēia hihia, pono e hoʻokaʻawale ʻia nā bearings ma nā wēlau ʻelua o ka motika, a ʻo ka mea hoʻoholo i ke koho ʻana i ka insulation ʻo ia nā ʻano manawa o ke au a me ka voltage. I ke ʻano o ka uila DC a i ʻole ka uila AC haʻahaʻa alapine, hilinaʻi ka hopena insulation i ka waiwai kū'ē maʻemaʻe o ka papa insulation; I ke ʻano o nā uila AC kiʻekiʻe alapine (loaʻa pinepine i nā mea hana e hoʻohana ana i nā mea hoʻololi alapine), hilinaʻi ia i ka reactance capacitive o ka insulation.

 

3. Ke kūlana maʻamau o ka hōʻino ʻana o ka bearing i hoʻokumu ʻia e ka overcurrent

 

1. Nā kaha ma nā ala holo a me nā mea ʻōwili

 

Me ka nānā ʻole inā hoʻoikaika ʻia ka bearing e ke au pololei a i ʻole ke au alternating (alapine ma lalo o MHz), hiki iā mākou ke loaʻa mau ke ʻano like o ka hemahema i loko o ka bearing.

 

2. Nā māka ʻauwaha electro-erosion

 

ʻO ke awāwa electro-erosion i kapa ʻia ʻo ia ke awāwa manawa mau ma ka ʻili o ke alaloa ma ke kuhikuhi o ka hana. ʻO ka hapa nui o kēia mau hanana i hana ʻia e ke au e hele ana ma o ka bearing.

 

ʻO ka hā, ma lalo o ka microscope e nānā i ka ʻano i hōʻino ʻia o ka bearing overcurrent

 

Ma o ka microscopy electron scanning (SEM) wale nō i ʻike ʻia ai ua uhi paʻa ʻia nā ʻili i hōʻino ʻia me nā lua a me nā hui solder μm.

 

ʻO ka lima, ke kaʻina hana o ka hōʻino ʻana

 

Hoʻokumu ʻia kēia mau lua a me nā hui solder e nā hoʻokuʻu ʻana o ke au ma waena o nā wahi liʻiliʻi o ka hoʻopili ʻana ma ka ʻili o ke ala holo a me nā mea ʻōwili. I ke kūlana lubricated wai piha, haki ke au uila ma o ka wahi nāwaliwali o ka ʻili ʻaila, a ʻo ka ikehu i hana ʻia e ka ʻālohilohi uila e hoʻoheheʻe i ka ʻili o ka metala e pili ana i ka manawa koke.

 

I ke kūlana friction hui ʻia (pili metala-a-metala), hoʻopili pū nā ʻili e pili ana, akā ua hoʻokaʻawale koke ʻia i ka neʻe ʻana o ka bearing. I nā hihia ʻelua, hoʻokaʻawale ka mea mai ka ʻili metala a paʻa koke i loko o kahi hui solder. Aia kekahi mau hui solder i hui pū ʻia me ka lubricant a me nā mea ʻē aʻe i waiho ʻia ma ka ʻili raceway. Ke hoʻomau nei ka neʻe ʻana o ka bearing, ua ʻōwili ʻia a hoʻomaʻemaʻe ʻia kēia mau hui solder a me nā lua. Ma lalo o ka hana o ke au uila mau, hana hou ʻia ke kaʻina hana o ka hoʻoheheʻe ʻana a me ka paʻa ʻana i nā manawa he nui ma kahi papa ʻili lahilahi loa o ka ʻili e pili ana.

 

6. Ka hopena o ke au ma luna o nā lubricants

 

Hiki i nā au uila ke loaʻa ka hopena maikaʻi ʻole i ka lubricant. Hoʻopau ʻia a nahā nā aila kumu a me nā mea hoʻohui. Hiki ke ʻike maopopo ʻia kēia hoʻololi ma ka spectrogram infrared. ʻO ka ʻelemakule mua a me ka hōʻiliʻili ʻana o nā ʻāpana metala ferrous hiki ke alakaʻi i ka hōʻino ʻana o ka hana lubricant a hiki ke alakaʻi i ka wela nui o nā bearings.