xov xwm

Lub tswv yim tsim ntawm lub cav aero bearing

Cov cav aero yog lub plawv ntawm lub dav hlau, thiab lawv cov kev ua tau zoo, kev nyab xeeb thiab kev ntseeg siab ncaj qha txiav txim siab qhov kev ua tau zoo, lub neej thiab kev ntseeg siab ntawm lub dav hlau, thiab kev ua tau zoo ntawm cov kabmob yog ib qho ntawm cov yam tseem ceeb uas cuam tshuam rau lub neej thiab kev ntseeg siab ntawm cov cav aero.

 

Lub cav aerocov kabmobmuaj cov xwm txheej ua haujlwm hnyav, tshwj xeeb tshaj yog cov kabmob spindle, uas yuav tsum tau ua kom tau raws li qhov yuav tsum tau ua ntawm qhov kub thiab txias, kev kub ceev, kev ua haujlwm ruaj khov (haum rau cov khoom thauj me me, cov khoom hnyav, kev nrawm thiab kev qeeb qeeb, kev poob siab, kev co, thiab lwm yam), kev ntseeg siab thiab lub neej ntev. Tam sim no, ntau qhov kev tshawb fawb tau ua tiav ntawm cov kabmob cav aero, hom kabmob tseem ceeb thiab cov qauv tseem ceeb, txoj kev lubrication thiab cov qauv flanging, cov qauv hnab tshos, lub kaum sab xis gasket, kev kho tshuab nto, kev siv cov kabmob ua ke, thiab lwm yam muaj feem cuam tshuam loj rau nws cov kev ua tau zoo, kev tsim qauv tsim nyog tuaj yeem zam kev ua tsis tiav thaum ntxov ntawmcov kabmob, txhim kho nws txoj kev ua haujlwm thiab ntev nws lub neej kev pabcuam. Daim ntawv no qhia txog qhov tshwj xeeb ntawm aero engine bearings thiab txheeb xyuas cov yam ntxwv cuam tshuam uas yuav tsum tau xav txog hauv cov txheej txheem tsim cov kabmob.

Cov yam ntxwv ntawm aero engine bearings

Cov yam ntxwv ntawm cov qauv:

Aero engine bearings: raws li qhov siv, nws tuaj yeem muab faib ua peb pawg: spindle bearings, accessory transmission gearbox bearings thiab reducer gearbox bearings.

1. Kev coj tus kheej ntawm lub spindle

Cov kabmob spindle txhawb nqa lub cav kiv cua rotors, roj generator rotors thiab lub zog turbine rotors, feem ntau siv kev sib xyaw ua ke ntawm peb-taw tes angular contact pob bearings thiab cylindrical roller bearings, peb-taw tes angular contact pob bearings dais lub nra hnyav axial thiab radial load ntawm lub rotor, cylindrical roller bearings tsuas yog dais radial loads, thiab cov yam ntxwv ua haujlwm ntawm spindle bearings yog qhov ceev tig siab (dn tus nqi txog li 2.6 × 106 mm · r / min), kub siab (180 ~ 250 ° C, luv luv ntau dua 300 ° C), axial load loj, luv luv lub teeb load thiab overload hauv radial kev taw qhia, axial load hloov kev taw qhia thiab qhov chaw teeb tsa compact. Yog li ntawd, spindle bearings muaj qib siab kam rau siab, feem ntau tsis qis dua P4 qib, thiab kuj muaj cov kev cai nruj rau qhov tseeb machining ntawm cylindrical rollers; Tsis tas li ntawd, spindle bearings feem ntau yog lubricated nyob rau hauv lub nplhaib, uas xav tau kev tsim tshwj xeeb sib xws.

 

2 Cov khoom siv kis tau tus mob gearbox

 

Cov kabmob ntawm lub thawv xa khoom txuas txhawb nqa lub iav rotor ntawm lub kaw lus xa khoom ntxiv, thiab nws cov yam ntxwv ua haujlwm yog qhov thauj khoom me me, qhov kub qis (120 ~ 150 ° C), thiab qhov ceev tig qis (dn tus nqi tsis siab dua 1.5 × 106 hli · r / min) .

 

3 Lub thawv iav txo qis

 

Lub reducer gearbox bearing txhawb nqa lub reducer iav sib dhos, nws cov yam ntxwv ua haujlwm yog qhov hnyav loj, qhov ceev qis thiab qhov kub qis (120 ~ 150 ° C).

 

Cov kev cai dav dav

Vim yog qhov tshwj xeeb ntawm kev siv ib puag ncig thiab kev ua haujlwm ntawm cov cav aero, cov kev cai dav dav ntawm cov bearings yog qhov nruj dua li cov ntawm cov bearings ib txwm muaj, thiab cov kev cai cuam tshuam yog raws li hauv qab no.

 

1. Tiv taus qhov kub siab thaum nres tsheb

 

Thaum lub cav khiav, cua txias raug tso tawm los ua kom cov hniav, cov kabmob thiab lwm qhov chaw txias, thiab cov kabmob kuj tseem txias los ntawm roj lubricating. Txawm li cas los xij, tom qab kaw, cov kev ntsuas txias no tsis ua haujlwm, thiab cua sov ntawm lub turbine yuav raug xa mus rau cov kabmob los ntawm lub tsev menyuam thiab tus ncej, ua rau qhov kub ntawm cov kabmob nce sai sai hauv lub sijhawm luv luv, tshwj xeeb tshaj yog qhov kub ntawm cov kabmob ntawm lub cav kub kawg yuav nce tsis zoo, thiab qee cov ntaub ntawv saib xyuas cav qhia tias qhov kub ntawm cov kabmob yuav ncav cuag li 350 ° C.

 

2. Lubricating roj cuam tshuam khiav peev xwm

 

Cov xwm txheej ntawm cov roj lubricating ntawm aero engine bearings feem ntau yog muab faib ua ob pawg:

1) Ua ntej lub cav pib ua haujlwm li qub ntawm lubricating roj system, nws nyob rau hauv lub xeev khiav txias, nrog qis qis thiab me me load;

2) Thaum lub cav khiav, yog tias lub tshuab roj lubricating tsis tuaj yeem txuas ntxiv muab roj vim muaj qee yam tshwj xeeb, thiab lub cav yuav tsum txuas ntxiv ua haujlwm rau ib lub sijhawm, lub bearings yuav nyob rau hauv lub xeev tsis muaj roj lubrication lossis txawm tias qhuav ua haujlwm, thiab tsis tuaj yeem ua kom lubricated thiab txias zoo. Txhawm rau kom muaj kev nyab xeeb ntawm kev ya dav hlau, bearings yuav tsum muaj peev xwm txuas ntxiv ua haujlwm li qub rau ib lub sijhawm yam tsis muaj kev puas tsuaj yam tsis muaj roj lubricating.

 

3 Kev ua haujlwm zoo

 

Lub cav aerocov kabmobyuav tsum muaj kev ua tiav zoo, kev sib dhos ua haujlwm zoo, thiab cov yam ntxwv sib dua. Yuav kom txo qhov nyuaj ntawm kev sib dhos, cov cav aero xav tau tsawg qhov chaw li sai tau, thiab lub spindle feem ntau yuav tsum tau nruab nrog cov kev txhawb nqa elastic ntawm qhov chaw txhawb nqa kom kho qhov ceev tseem ceeb ntawm lub rotor, thiab cov roj zaj duab xis dampers tau teeb tsa los tswj kev co ntawm lub rotor, ob qho tib si yuav siv qhov chaw radial. Yuav kom txuag tau qhov chaw radial kom nce tus naj npawb ntawm cov khoom dov thiab txhim kho lub peev xwm ntawm cov kabmob, lub nplhaib sab nraud ntawm cov kabmob feem ntau yog koom ua ke nrog lub tawb squirrel elastic txhawb nqa thiab roj zaj duab xis damper. Yuav kom txo tus naj npawb ntawm cov khoom thiab txo qhov nyuaj ntawm kev sib dhos, lub tawb squirrel txhawb nqa, mounting flange thiab roj zaj duab xis damping nplhaib groove tau koom ua ke rau hauv lub nplhaib sab nraud ntawm cov kabmob, tab sis kuj muaj teeb meem xws li kev tsim qauv nyuaj dua, txo cov qauv muaj zog, thiab kev xaiv cov khoom siv thiab cov txheej txheem ntau lawm nruj dua.

 

4 Lub kaw lus pov thawj zoo tshaj plaws

 

Ntxiv rau cov tswv yim tsim qauv siab heev thiab kev ua haujlwm raug siab, nws tseem yog qhov tsim nyog yuav tsum tau vam khom lub kaw lus pov thawj zoo siab heev suav nrog cov qauv txheej txheem, cov khoom siv ua haujlwm, kev tshuaj xyuas zoo, cov neeg ua haujlwm, kev txheeb xyuas kev xeem, daim ntawv pov thawj zoo thiab lwm yam.