Baetsi ba li-angular ball bearing ba utloisisa hore ts'ebetso ea sekhahla se phahameng sa lisebelisoa tsa mochini oa tšepe oa CNC se ipapisitse le sebopeho sa spindle le lubrication ea sona ho isa tekanyong e kholo.Machine tool bearings naha ea heso e ntse e tsoela pele ka potlako, e jara mefuta e sa tšoaneng ho tloha ho tse nyenyane ho ea ho tse kholo, boleng ba sehlahisoa le boemo ba botekgeniki ho tloha tlaase ho ea holimo, tekanyo ea indasteri ho tloha ho tse nyenyane ho ea ho tse kholo, le tsamaiso ea setsebi ea tlhahiso e nang le lihlopha tsa lihlahisoa tse feletseng le tlhahiso e utloahalang haholoanyane. sebopeho se entsoe.Mamello ea li-spindle bearings e lekanyelitsoe.Li loketse ka ho khetheha bakeng sa ho jara litokisetso tse hlokang ho nepahala ho holimo haholo le bokhoni ba lebelo.Li loketse ka ho khetheha bakeng sa ho hlophisoa ha li-shafts tsa lisebelisoa tsa mochine.Ka lebaka la ho tiea ha eona hantle, ho nepahala ho phahameng, bokhoni bo phahameng ba ho jara le sebopeho se batlang se le bonolo, li-rolling bearings ha li sebelisetsoe feela li-spindle tsa lisebelisoa tsa mochine oa ho itšeha ka kakaretso, empa hape li ratoa ke lisebelisoa tsa mochine oa ho itšeha ka lebelo le phahameng.Ho ea ka pono ea lebelo le phahameng, li-angular contact ball bearings li-rolling bearings, li-cylindrical roller bearings ke tsa bobeli, 'me li-roller bearings ke tsona tse mpe ka ho fetisisa.
Bolo (ke hore, bolo) ea mokokotlo oa bolo ea khokahanyo e pota-pota le ho potoloha, 'me e hlahisa matla a centrifugal Fc le gyro torque Mg.Ka ho eketseha ha lebelo la spindle, matla a centrifugal Fc le gyro torque Mg le ona a tla eketseha haholo, e leng se tla etsa hore ho behoa ho hlahise khatello e kholo ea ho kopana, e leng se tla lebisa ho khohlano e eketsehileng ea ho beha, ho eketseha ha mocheso, ho fokotseha ho nepahetseng. le bophelo bo khutsufalitsoeng.Ka hona, e le ho ntlafatsa ts'ebetso e phahameng ea lebelo lena, boiteko bohle bo lokela ho etsoa ho thibela ho eketseha ha eona Fc le Mg.Ho latela mokhoa oa lipalo oa li-angular contact ball bearings Fc le Mg, hoa tsebahala hore ho fokotsa boima ba thepa ea bolo, bophara ba bolo le lehlakoreng la ho kopana la bolo li na le molemo ho fokotsa Fc le Mg, kahoo hona joale e phahameng- li-spindles tsa lebelo hangata li sebelisa li-angles tsa ho kopana tsa 15 ° kapa 20 ° tsa li-bearings tse nyenyane tse bophara ba bolo.Leha ho le joalo, bophara ba bolo bo ke ke ba fokotseha haholo.Ha e le hantle, e ka ba 70% feela ea tekanyo e tloaelehileng ea bolo ea letoto, e le hore e se ke ea fokolisa ho tiea ha ho beha.Ntho ea bohlokoa le ho feta ke ho batla ntlafatso ea thepa ea bolo.
Ha ho bapisoa le GCr15 e nang le tšepe, boima ba silicon nitride (Si3N4) ceramics ke 41% feela ea boima ba eona.Bolo e entsoeng ka silicon nitride e bobebe haholo.Ka tlhaho, matla a centrifugal le torque ea gyro e hlahisoang nakong ea ho potoloha ka lebelo le phahameng le tsona li nyane.tse ngata.Ka nako e ts'oanang, modulus ea elastic le boima ba li-ceramics tsa silicon nitride ke makhetlo a 1.5 le makhetlo a 2.3 ho feta a tšepe e nang le tšepe, 'me coefficient ea katoloso ea mocheso ke 25% feela ea tšepe e nang le tšepe, e ka ntlafatsang ho satalla le bophelo ba ho beha, empa hape le tumello e ts'oanang ea ho bea e fetoha hanyenyane tlas'a maemo a fapaneng a ho phahama ha mocheso, 'me mosebetsi o ka tšeptjoa.Ho phaella moo, ceramic e hanyetsa mocheso o phahameng 'me ha e khomarele tšepe.Ho hlakile hore sebaka se entsoeng ka silicon nitride ceramic se loketse ho potoloha ka lebelo le phahameng.Ho itloaetsa ho bontšitse hore li-bearings tsa bolo ea ceramic li ka eketsa lebelo ka 25% ~ 35% ha li bapisoa le li-bearings tsa tšepe tse tsamaisanang, empa theko e phahame.
Linaheng tsa linaheng tse ling, li-bearings tse nang le mehele ea tšepe e ka hare le ea ka ntle le likarolo tsa ceramic rolling li bitsoa "hybrid bearings".Hona joale, li-hybrid bearings li na le tsoelo-pele e ncha: e 'ngoe ke hore lisebelisoa tsa ceramic li' nile tsa sebelisoa ho etsa li-roller tsa li-cylindrical roller bearings, 'me li-bearings tsa ceramic cylindrical hybrid bearings li hlahile' marakeng;e 'ngoe ke ho sebelisa tšepe e sa hloekang ho e-na le ho jara tšepe ho etsa mehele ea ka hare le ea ka ntle ea bere, haholo-holo lesale la ka hare.Kaha coefficient ea ho atolosoa ha mocheso oa tšepe e sa hloekang ke 20% e nyane ho feta ea tšepe e jereng, ka tlhaho, keketseho ea khatello ea maikutlo e bakoang ke ho atolosoa ha mocheso oa lesale la ka hare ho tla hatelloa nakong ea ho potoloha ka lebelo le phahameng.
Nako ea poso: Apr-15-2021
