izindaba

Isingeniso kuma-bearings afakwe ugesi

 

Okokuqala, inhlosoamabheringi avikela ngogesi

 

Ama-bearings abizwa ngokuthi ama-electrically insulated nawo angama-insulated bearings, kanti ama-electrically insulated bearings afaka wonke ama-rolling bearings angavimbela ukudlula komsinga kagesi. Ama-bearings ane-ceramic coating, kokubili ama-rings angaphakathi nangaphandle, abizwa ngokuthi ama-insulated bearings. I-ceramic coating ivimbela ukudlula komsinga kagesi futhi inekhono lokufaka i-insulation.

 

Izinto ezigoqekayo zeamabheringi ahlanganisiweZenziwe nge-ceramic ngakho-ke zinezakhiwo zokuvikela. Zenziwe ngezinto ezigoqekayo ukuvimbela ukudlula kwamandla kagesi.

 

Okwesibili, ukukhethwa kokufakwa kokushisa okuthwala

 

Ngokuvamile, kunzima kakhulu ukuqeda ngokuphelele umehluko ongaba khona ngaphakathi kwe-bearing. Kodwa-ke, uma singamisa noma sinciphise kakhulu ukugeleza kwamanje nge-bearing, singavimbela ukugqwala kwe-galvanic kwe-bearing. Uhlu olubanzi lwama-bearing afakwe i-insulation okwamanje lwenzelwe le njongo. Kuye ngohlobo lwe-voltage ekhiqizwayo, kukhethwa indlela yokufakelwa i-bearing.

 

1. I-voltage ebangelwayo ekhiqizwa eceleni komgodi

 

2. I-voltage phakathi kwe-shaft nesihlalo sokuthwala

 

Uma i-voltage ivele phakathi kwe-shaft kanye ne-housing, i-current igeleza nge-bearing ngayinye iye ohlangothini olufanayo. Lokhu kungenxa kakhulu ye-voltage yemodi evamile elethwa yi-frequency converter. Kulesi simo, ama-bearing kuzo zombili izinhlangothi zemoto kufanele afakwe i-insulation, futhi isici esinqumayo ekukhetheni i-insulation yizici zesikhashana zamanje kanye ne-voltage. Endabeni ye-DC voltage noma i-AC voltage ephansi, umphumela we-insulation uncike enanini lokumelana elimsulwa lesendlalelo se-insulation; Endabeni yama-AC voltages aphezulu (avame ukutholakala kumadivayisi asebenzisa ama-frequency converters), kuncike ekuphenduleni kwe-capacitive kwe-insulation.

 

3. Isimo esijwayelekile somonakalo wokuthwala obangelwa ukugcwala komoya

 

1. Imidwebo emigwaqweni yomjaho kanye nezinto ezigingqikayo

 

Kungakhathaliseki ukuthi i-bearing inikwe amandla yi-direct current noma i-alternating current (imvamisa engaphansi kwe-MHz), singathola njalo uhlobo olufanayo lokwehluleka ngaphakathi kwe-bearing.

 

2. Amamaki okuguguleka kwe-electro-growth

 

Okubizwa ngokuthi i-electro-erosion groove kubhekisela ku-continuous periodic groove ebusweni bomgwaqo ohambayo ohlangothini lokusebenza. Iningi lalezi zimo libangelwa ugesi odlula ku-bearing.

 

Okwesine, ngaphansi kwe-microscope ukuhlola isakhiwo esonakele sebhereyitha elingaphezu kwamandla

 

Kungokuskena i-electron microscopy (SEM) kuphela lapho kusobala khona ukuthi cishe zonke izindawo ezonakele zimbozwe kakhulu yimigodi kanye namajoyinti e-solder e-μm.

 

Okwesihlanu, inqubo yokulimala kokuthwala

 

Lezi zimbobo kanye namajoyinti e-solder kubangelwa ukuphuma kwamandla kagesi phakathi kwamaphuzu amancane okuxhumana ebusweni bomgwaqo omkhulu kanye nezinto ezigoqekayo. Esimweni sokugcotshwa ngoketshezi oluphelele, amandla kagesi adlula endaweni ebuthakathaka yefilimu kawoyela, futhi amandla akhiqizwa yinhlansi kagesi ancibilikisa ubuso bensimbi eseduze ngokuphazima kweso.

 

Esimweni sokungqubuzana okuxubile (ukuxhumana kwensimbi nensimbi), izindawo eziseduze nazo ziyahlangana, kodwa zihlukaniswa ngokushesha njengoba ibhereyi ihamba. Kuzo zombili izimo, izinto ziyahlukana ebusweni bensimbi bese ziqina ngokushesha zibe yi-solder joint. Kukhona futhi amanye ama-solder joints axutshwe ne-lubricant kanti amanye afakwa ebusweni be-raceway. Njengoba ibhereyi iqhubeka nokuhamba, la ma-solder joints nama-pit nawo ayagoqwa futhi abushelelezi. Ngaphansi kwesenzo samandla kagesi aqhubekayo, inqubo yokuncibilika nokuqina iphindaphindwa izikhathi eziningana kungqimba oluncane kakhulu lobuso obuseduze.

 

6. Ithonya lamandla kagesi ezintweni zokugcoba

 

Ama-current kagesi nawo angaba nomthelela omubi ku-lubricant. Amafutha ayisisekelo kanye nezithasiselo ziyaqhekeka futhi ziqhekeke. Lolu shintsho lungabonakala ngokucacile ku-spectrogram ye-infrared. Ukuguga ngaphambi kwesikhathi kanye nokuqongelela kwezinhlayiya zensimbi yensimbi kungaholela ekuwohlokeni kokusebenza ko-lubricant futhi kungaholela nasekushiseni ngokweqile kwama-bearings.