nkhani

Chiyambi cha mabearing otetezedwa ndi magetsi

 

Choyamba, cholinga chamabearing oteteza magetsi

 

Ma bearing otchedwa electrically insulated bearing nawonso ndi ma bearing otetezedwa, ndipo ma bearing otetezedwa ndi electrically akuphatikizapo ma bearing onse ozungulira omwe angalepheretse kudutsa kwa magetsi. Ma bearing okhala ndi ceramic coating, mphete zamkati ndi zakunja, amatchedwa ma bearing otetezedwa. Ceramic coating imaletsa kudutsa kwa magetsi ndipo imatha kutetezera kutentha.

 

Zinthu zozungulira zamabearing osakanizidwaAmapangidwa ndi ceramic ndipo motero ali ndi mphamvu zotetezera kutentha. Amapangidwa ndi zinthu zozungulira kuti magetsi asadutse.

 

Chachiwiri, kusankha kwa kutchinjiriza kutsogolera

 

Kawirikawiri, zimakhala zovuta kwambiri kuchotsa kwathunthu kusiyana komwe kungachitike mkati mwa bearing. Komabe, ngati tingathe kuyimitsa kapena kuchepetsa kwambiri kuyenda kwa magetsi kudzera mu bearing, tikhoza kupewa kuwonongeka kwa galvanic kwa bearing. Mitundu yosiyanasiyana ya ma bearing otetezedwa pakadali pano apangidwa kuti akwaniritse izi. Kutengera mtundu wa magetsi opangidwa, njira yotetezera kutentha ya bearing imasankhidwa.

 

1. Voltage yoyambitsidwa yomwe imapangidwa motsatira shaft

 

2. Mphamvu yamagetsi pakati pa shaft ndi mpando wonyamula katundu

 

Ngati magetsi akuchitika pakati pa shaft ndi nyumba, magetsi amayenda kudzera mu bearing iliyonse mbali imodzi. Izi zimachitika makamaka chifukwa cha magetsi a common-mode omwe amabwera ndi frequency converter. Pankhaniyi, ma bearing kumapeto onse a mota ayenera kutetezedwa, ndipo chinthu chofunikira kwambiri pakusankha insulation ndi mawonekedwe a nthawi yamagetsi ndi magetsi. Pankhani ya DC voltage kapena low-frequency AC voltage, mphamvu ya insulation imadalira kukana koyera kwa insulation layer; Pankhani ya high-frequency AC voltages (yomwe imapezeka kwambiri m'zida zomwe zimagwiritsa ntchito ma frequency converters), zimatengera capacitive reactance ya insulation.

 

3. Mkhalidwe wamba wa kuwonongeka kwa bere komwe kumachitika chifukwa cha overcurrent

 

1. Zizindikiro pamisewu yothamanga ndi zinthu zozungulira

 

Kaya bearing imayendetsedwa ndi direct current kapena alternating current (pafupipafupi pansi pa MHz), nthawi zonse tingapeze kulephera komweko mkati mwa bearing.

 

2. Zizindikiro za kukokoloka kwa nthaka pogwiritsa ntchito magetsi

 

Chomwe chimatchedwa electro-erosion groove chimatanthauza groove yopitilira nthawi zonse pamwamba pa raceway molunjika komwe ikugwira ntchito. Zambiri mwa zochitikazi zimachitika chifukwa cha mphamvu yamagetsi yomwe imadutsa mu bearing.

 

Chachinayi, pansi pa maikulosikopu kuti muwone kapangidwe kake kowonongeka ka chimbalangondo cha overcurrent

 

Ndi pongoyang'ana maikulosikopu ya ma elekitironi (SEM) kuti ziwonekere kuti pafupifupi malo onse owonongeka amaphimbidwa ndi maenje ndi malo olumikizirana a μm.

 

Chachisanu, njira yowonongera katundu

 

Maenje ndi malo olumikizirana awa amayambitsidwa ndi kutuluka kwa mphamvu pakati pa malo ang'onoang'ono olumikizana pamwamba pa msewu wa raceway ndi zinthu zozungulira. Pakakhala mafuta okwanira, mphamvu yamagetsi imadutsa pamalo ofooka a filimu yamafuta, ndipo mphamvu yopangidwa ndi mphamvu yamagetsi imasungunula pamwamba pa chitsulo chapafupi nthawi yomweyo.

 

Mu mkhalidwe wosakanikirana wa kukangana (kukhudzana ndi chitsulo ndi chitsulo), malo oyandikana nawo amalumikizananso, koma amalekanitsidwa mwachangu pamene bearing ikuyenda. M'zochitika zonsezi, zinthuzo zimachoka pamwamba pa chitsulo ndipo nthawi yomweyo zimakhala zolimba kukhala solder joint. Palinso ma solder joints ena omwe amasakanizidwa ndi mafuta ndi ena omwe amaikidwa pamwamba pa raceway. Pamene bearing ikupitirira kuyenda, ma solder joints ndi maenje awa amapindidwanso ndikusalala. Pogwiritsa ntchito mphamvu yamagetsi yopitilira, njira yosungunula ndi kulimba imabwerezedwa kangapo pamwamba pang'ono kwambiri pa malo oyandikana nawo.

 

6. Mphamvu ya mphamvu yamagetsi pa mafuta odzola

 

Mphamvu zamagetsi zimathanso kukhudza mafuta odzola. Mafuta oyambira ndi zowonjezera zimasungunuka ndikusweka. Kusinthaku kungawonekere bwino mu infrared spectrogram. Kukalamba msanga komanso kusonkhanitsa tinthu tachitsulo ta ferrous kungayambitse kuwonongeka kwa mafuta odzola komanso kungayambitsenso kutentha kwambiri kwa ma bearing.