Iibheringi zeenjini ze-Aero
Ukuthwalauhlobo
Isantya se-spindle yenjini ye-aero siphezulu, ubushushu obushushu buphezulu, kwayeibhereyithakufuneka ithwale umthwalo we-axial kunye nomthwalo we-radial, ngoko ke i-bearing yahlulwe yangamacandelo amabini: i-thrust fulcrum bearing kunye ne-swimming fulcrum bearing: i-thrust fulcrum bearing idla ngokusebenzisa i-three-point angular contact ball bearing ukuthwala umthwalo we-axial kunye nokulawula i-axial clearance ye-stator ejikelezayo; Ii-traveling fulcrum bearings zithwala kuphela imithwalo ye-radial, kwaye kuba i-rotor iya kuhamba kwicala le-axial ngenxa yokwanda kobushushu kunye nokucutheka,iibheringi zerola ezisilindakusetyenziswa izinto ezingenamida kwisangqa esingaphandle okanye esingaphakathi.
Iibhokisi zegiya ze-Aero ezincedisayo zenjini zihlala ziqhutywa ziigiya ze-spur, kwaye iibheringi zithwala kuphela imithwalo ye-radial kwaye ukwandiswa kobushushu be-rotor kuncinci, ngoko keiibheringi zerola ezisilindakwayeiibheringi zebhola ezinzulu zomjelozikhethwa kakhulu.
Ibhokisi yegiya yokunciphisa idlulisela amandla amaninzi, amanye awo asebenzisa iigiya zehelical, kwaye iibheringi kufuneka zithwale imithwalo yeradial kunye neye-axial, ngoko keiibheringi zerola ezisilinda, iibheringi zebhola ezinzulu zomjelokunye namanqaku amathathuiibheringi zebhola yoqhagamshelwano lwe-angularzikhethwa kakhulu.
Iinjini ze-Aero zisebenzisa iibheringi zebhola zoqhagamshelwano ze-angle ezinamacala amathathu kwayeiibheringi zerola ezisilinda.
Iibheringi zebhola zoqhagamshelwano ze-engile ezintathu
Xa injini ye-aero isebenza, umthwalo we-radial kunye nomthwalo we-axial uya kuveliswa kwi-spindle, kwaye iseti yee-ball bearings zihlala zibekwe kwindawo ye-fulcrum phambi kwe-spindle ukuze zithwale umthwalo we-radial owenziwe yi-superposition yamandla angalinganiyo eshaft nganye kunye nokujikeleza kwesantya esiphezulu, kwaye kwangaxeshanye zithwale umahluko phakathi kwamandla e-pneumatic e-fan kunye ne-compressor phambili kunye namandla e-pneumatic abuyela umva kwi-turbine.
Xa kuthelekiswa ulwakhiwo lwee-deep groove ball bearings kunye nee-three-point angular contact ball bearings, embindini we-inner ring groove ye-three-point angular contact ball bearing ixhotyiswe nge-axial eccentricity Lo, eyenza i-axial clearance yayo i-Ga kunye nobungakanani be-rotor kwicala le-axial kube lula kwaye kube lula ukulawula i-axial clearance ye-stover ejikelezayo yenjini.
Ibheriya yebhola yoqhagamshelwano enekona ezintathu inesakhiwo seringi esiphindwe kabini esiphakathi, kwaye uyilo lwayo olunokwahlulwa yiringi engaphakathi luvumela ukufakwa kweebhola ezingaphezulu, nto leyo eyandisa kakhulu amandla okuthwala.
Ukuthelekiswa kolwakhiwo lweebheringi zebhola zoqhagamshelwano ze-angular kunye neebheringi zebhola zoqhagamshelwano ze-angular ezinamanqaku amathathu, iibheringi zebhola zoqhagamshelwano ze-angular zinokuthwala kuphela imithwalo ye-axial yendlela enye, ukuba zifuna ukuthwala imithwalo ye-axial ye-bidirectional, kufuneka zidityaniswe, eziya kuthatha indawo engaphezulu kwaye zonyuse ubunzima; Iindandatho zangaphakathi eziphindwe kabini nesiqingatha zeebheringi zebhola zoqhagamshelwano ze-angular ezinamanqaku amathathu zinokuthwala ngokuthe ngqo imithwalo ye-axial ye-bidirectional, enokonga malunga ne-50% yendawo kunye nomgangatho xa kuthelekiswa nomqolo ophindwe kabini okanye iqela leebheringi zebhola zoqhagamshelwano ze-angular ezixhasayo, kwaye kulula ukuzifaka, ezilungele uyilo lwenjini.
Ikheji kunye nendibano yebhola yebheyari yebhola yoqhagamshelwano enekona ezintathu inokwahlulwa kwiringi engaphandle, ngoko ke ikheji eqinileyo enenxalenye enye ingasetyenziswa, enamandla aphezulu, ifanelekile kwisantya esiphezulu sokujikeleza, kwaye kulula ukufumana ukuchaneka okuphezulu koomatshini; Kwangaxeshanye, isakhiwo sikwenza kube lula ngakumbi ukufakelwa kunye nokuhlolwa kweebheringi.
Xa kuthelekiswa neebheringi zeroli ze-cylindrical roller eziqhelekileyo, ububanzi beroli yeebheringi zeroli ze-cylindrical roller ze-aero injini buncinci, kwaye izibonelelo zazo zezi zilandelayo:
1) Inganciphisa ukumelana nokuxukuxa kwe-oyile yerola ngexesha lokusebenza ngesantya esiphezulu;
2) Amandla angenawo amandla mancinci;
3) Uxinzelelo olwaneleyo loqhagamshelwano lunokugcinwa xa amandla e-radial emancinci ukuze kuthintelwe ukutyibilika kwe-roller;
4) Ekubeni izinto ze-ferrule, i-roller kunye ne-cage zinokwahlulwa, i-cage eqinileyo ingasetyenziswa, enamandla angcono kunye nozinzo olukhawulezayo.
Iibheringi zerola ezisilindangaphandle kweflange kwiringi yangaphakathi idla ngokuba nobubanzi obukhulu beringi yangaphakathi ukuze ilungele intshukumo ye-axial phakathi kweringi yangaphakathi neyangaphandle ebangelwa kukwandiswa kobushushu phakathi kweshaft kunye neringi yangaphakathi yebheyiri, kunye nokungahambi kakuhle phakathi kweringi yangaphakathi neyangaphandle ebangelwa yimpazamo ye-axial assembly ye-rotor assembly ngexesha lokuhlanganiswa. Ukuba indawo yokufaka incinci okanye kukho iimfuno ezikhethekileyo, i-shaft okanye i-bearing housing ingasetyenziswa ngokuthe ngqo endaweni yeringi yangaphakathi engenaflange.
Injini ye-Aeroiibheringi zerola ezisilindabadla ngokujongana neemeko zokusebenza zomthwalo omncinci okanye ongekhoyo weradial womthwalo weradial, kwaye isantya sokujikeleza siphezulu kakhulu, iirola ziyakwazi ukutyibilika nokukhuhla, ukuze kuthintelwe ukutyibilika, iindlela zomdyarho ezingajikeleziyo zihlala zisetyenziselwa ukufezekisa umthwalo wangaphambili weradial webheringi, kwaye ukusasazwa komthwalo weebheringi ezimbini eziqhelekileyo ezingajikeleziyo kudla ngokusetyenziswa.
Izinto zokuthwala
Ubushushu bendawo yokusebenza kwe-turbine bearing yenjini buphezulu kakhulu, kwaye kudla ngokufuneka ukuba i-bearing iphole ngomthamo weoyile yokuthambisa yeelitha ezininzi ngomzuzu, kodwa ubushushu bokusebenza kwe-bearing busenokufikelela malunga nama-250 °C.
Ukuze kuhlangatyezwane neemeko zokusebenza zobushushu obuphezulu, iringi yokuthwala idla ngokusebenzisa intsimbi ye-8Cr4Mo4V (M50) kunye nezinye intsimbi yokuthwala intsimbi enobushushu obuphezulu, kwaye iphathwa ngokushisa okuphezulu, nokuba ubushushu bokuthwala bufikelela kwi-400 °C emva kokuba injini imisiwe, isenokuqinisekisa ukusebenza kwebheringi. Ukuze kuhlangatyezwane nobomi bokudinwa obuqengqelekayo, ubunzima bomphezulu wezinto zokuthwala kufuneka bungabi ngaphantsi kwe-60 HRC kubushushu begumbi, kwaye intsimbi iyonke ye-8Cr4Mo4V iyaqiniswa ngonyango lobushushu, kodwa ubunzima buphantsi kunobo bezinto zesakhiwo, eziya kukhokelela ekuqhekekeni kwe-ferrule xa amandla e-centrifugal e-ferrule kunye noxinzelelo olujikelezayo lwe-shaft zikhulu. Ke ngoko, ixabiso le-dn lidlula i-2.5 × 106 mm · iibheringi ze-r/min kufuneka zenziwe ngezinto ze-G13Cr4Mo4Ni4V (M50NiL), ezinobunzima obungcono be-core.
Izinto zekheji zeebheringi zeenjini ze-aero zihlala zenziwe ngentsimbi yokwakha efana ne-40CrNiMoA (4030), kwaye ikheji kufuneka ifakwe isilivere ukuze kuncitshiswe ukuguguleka ngexesha lokuqalisa. Into eqengqelekayo iyafana nezinto ze-ferrule, kwaye ubunzima bayo buhlala bufana nobe-ferrule, kwaye kwezinye iimeko iya kuba phezulu nge-1 ~ 2 HRC kune-ferrule. Ngamanye amaxesha ibhola ikwasebenzisa izinto ze-ceramic ezifana ne-silicon nitride, i-alumina, kunye ne-zirconia.
Ixesha leposi: Juni-08-2026
