Raws li "sib koom" qhov chaw ntawm lub tshuab dav hlau, cov kabmob ua lub luag haujlwm txiav txim siab hauv kev siv tshuab aviation. Cov kabmob txhawb nqa tag nrho cov ntsiab lus tseem ceeb ntawm aviation cav toast system. Essence Nyob rau hauv teb rau cov laj thawj rau skating ntawm aviation engine bearing thiab cov coj kev tiv thaiv kev ntsuas, Tuam Tshoj Bearing Network tau to taub thiab qhia cov kev paub raws li nram no.
Ua rau aviation cav bearing
Aviation gas turbine engine lub ntsiab ncej yog ntau dua li qhov teev tus nqi ntawm dov bearings tshaj cov kabmob specifications, tshwj xeeb tshaj yog cov bearings nyob ze ntawm lub turbine. Yog li ntawd, thaum tsim lub cav, koj yuav tsum xaiv qhov sib txawv ntawm cov kabmob ua tib zoo.
Vim lub siab ceev thiab qis load ntawm lub aviation engine bearing, lub teeb los yog xoom-load yuav tshwm sim nyob rau hauv lub bearing thaum lub aircraft yog mobilized. Thaum lub davhlau pob ntawm lub dav hlau loj, qee zaum lub axial load ntawm lub rotor yuav hloov cov kev taw qhia. Nyob rau pem hauv ntej thiab nram qab lub sij hawm ntawm kev hloov kev taw qhia, axial load ntawm cov kabmob bearing bearing bearing bearing yuav me me los yog xoom. Tag nrho cov no yog swb los ntawm cov bearings.
Nyob rau hauv lub rolling bearings, cov menyuam thiab lub nplhaib puab thiab sab nraud yuav tsum tau dov kev sib txhuam. Thaum cov bearings swb, cov menyuam thiab cov menyuam txoj kev zoo li zawv zawg thiab kev sib txhuam, thiab kev sib txhuam coefficient nce. Thaum qhov kub thiab txias thiab lwm yam laj thawj raug rhuav tshem, kev sib txhuam ntawm cov hlau saum npoo zoo li, yog li cov ntaub nplaum hauv zos tshwm rau ntawm cov hlau nto, thiab cov khawb tau tsim sai heev, rhuav tshem cov duab qub thiab smoothness ntawm cov menyuam thiab cov menyuam, thiab khawb cov kabmob. Hom kev ua tsis tiav no tshwm sim los ntawm kev ua haujlwm nplua yog hu ua "sliding puas".
Ntawm cov cav tov uas twb muaj lawm, cov rolling stick bearings ntawm lub ntsiab ncej feem ntau yuav ua rau muaj kev raug mob los ntawm kev nplua. Lub pearl bearing yeej ib txwm muaj axial load los ntawm pneumatic dynamic zog, yog li nws tsis yooj yim rau plam. Txawm li cas los xij, thaum lub axial load ntawm lub rotor hloov nyob rau hauv lub axial load los ntawm pem hauv ntej mus rau rov qab nyob rau hauv lub davhlau, los yog vice versa, lub hlaws bearings yuav twv yuav raug hu thiab ua rau zawv zawg puas. Piv txwv li, nyob rau hauv nws cov pej xeem MK512, qhov nres bearing ntawm lub low-voltage rotor yog ib tug intermediary bearings. Lub nplhaib sab nrauv yog tsau ntawm lub siab-siab axis sab hauv davhlau nyob rau hauv nruab nrab ntawm lub axis.
Txawm li cas los xij, thaum nws txhim kho rau hauv MK202 rau cov neeg tua hluav taws kub ceev, nyob rau hauv lub davhlau pob, lub ncej-directional load ua haujlwm ntawm qhov qis-voltage rotor kom nres cov kabmob tau tshwm sim. Yog li ntawd, cov kabmob muaj kev nplua hnyav thiab ua rau muaj kev raug mob zawv zawg. Piv txwv li, nyob rau hauv lub RB211 series engine 22B, 524, 524D4D, 535E4 thiab lwm yam, lub nres-pushing bearing ntawm tsawg-siab rotor kuj yog ib tug intermediary bearings. Thaum lub davhlau, cov bearings tshwm sim hloov cov kev taw qhia. Kev ntsuas, txij xyoo 1972 txog 1988, tau txuas ntxiv muaj kev raug mob nplua.
Nws tsis yog txog thaum muaj ntau yam qauv tom qab RB211 524G hauv xyoo 1988 uas nws pib daws qhov teeb meem ntawm kev tiv thaiv kev swb. Txoj kev yog txhawm rau nce txoj kab uas hla ntawm qhov qis-voltage rotor kom tshem tawm cov kab noj hniav. Lub axial load ntawm lub rotor ib txwm txav mus rau pem hauv ntej yam tsis hloov cov kev taw qhia. Nyob rau ntawm RB211 tus successor qauv 遄 800, lub rear kawg ntawm lub low-pressure turbine axis nce lub axial springs thiab me me bearing rau lub pre-loading ntawm cov menyuam bearing.
Lub sij hawm ntawm dov bearing tshwm sim los ntawm kev raug mob los ntawm kev sib tsoo yog tawg. Qhov luv luv tsuas yog ua haujlwm rau ob peb teev lossis txawm kaum feeb, thiab qhov ntev yuav yog ntau pua lossis ntev dua.
Thaum lub cav tsim, cov kev ua haujlwm ntawm txhua lub qag yuav tsum tau txheeb xyuas. Thaum lub cav yog tsim, lub dov stick bearings yuav tsum tau saib xyuas thaum lub cav tsim. Raws li kev soj ntsuam swb, xav txog qhov cuam tshuam ntawm lub davhlau ya nyob twg, thiab siv cov kev ntsuas los tiv thaiv. Tsis tas li ntawd, kev tsim qauv yuav tsum tau ua kom ntseeg tau tias cov axial load uas ua rau cov hlaws bearings yuav tsis hloov pauv hauv pob davhlau.
Tiv thaiv kev tiv thaiv kom tsis txhob aviation cav lub ntsiab shafts slipping
Khaws cov txee rau ntawm lub nplhaib puab ntawm cov kabmob, piv txwv li: R211 qis-voltage dov pearl bearing; elliptical shafts xws li JT3D, JT8D, JT15D, CF680C2, thiab T700 dov stick bearings; Cov roj hloov mus rau oblique tsuag, kom cov roj txhaj tshuaj tiv thaiv kev sib hloov; daim ntawv cog lus rau cov menyuam ncej loaded los ntawm cov menyuam bearing rau axial caij nplooj ntoos hlav hloov, xws li J69 cav; Qhov qis-voltage rotor nres lub chaw ua haujlwm bearing thiab lub qag nram qab ntawm qhov qis-siab turbine ntawm 800 txo turbine; txo qhov sib txawv xws li Ai 20 cua.
Nws yuav tsum raug sau tseg tias kev siv qhov txo qis hauv qhov sib txawv kom tsis txhob muaj cov kabmob los ntawm kev swb tuaj yeem ua haujlwm, tab sis nws yuav coj qee yam tsis zoo, yog li nws tsis pom zoo. Tom qab lub dov roller bearing txhaum nyob rau hauv pem hauv ntej ntawm lub Soviet Ai 20 engine, qhov sib txawv tau hloov, tab sis tom qab ob peb xyoos, nws rov qab mus rau lub qub tsim ntawm tus thawj tsim.
Cov bearings nyob rau hauv cov ntaub ntawv sib txuas lus mechanism, vim hais tias qhov ceev yog me ntsis qis, thiab ib txwm muaj lub radial load nyhuv ntawm iav meshing, tsis muaj slipping. Txawm li cas los xij, yog hais tias nyob rau hauv ib tug high-ceev kis tau tus mob saw, xws li kis tau tus mob roj thiab roj separator, lub centrifugal fairy, xws li lub nruab nrab tub nkeeg log, lub active iav, thiab qhov chaw ntawm lub dynamic iav nyob rau hauv txoj kab ncaj nraim, nws ua. nyob rau hauv nruab nrab Cov bearings yuav inevitably plam. Yog li ntawd, nws raug pom zoo tias cov kabmob ntawm cov kabmob ntawm cov kabmob yog pom zoo, lossis peb lub log log lub plawv tsis nyob ntawm txoj kab.