Vertical-Mounted Lub cev muaj zog: Fault Analysis ntawm lub suab nrov txawv txav

Case: Ib qho export-oriented YE3-355-4ntsug mounted lub cev muaj zogtsim los ntawm ib lub tshuab tsim hluav taws xob ua tsis tau lub Hoobkas lees paub vim muaj kev vibration ntau dhau thiab suab nrov. Tom qab cov kws tshaj lij kev sib tham, kev hloov me me axial tau ua tiav ntawm lub cev muaj zog. Txhua qhov kev ua txhaum ploj mus hauv kev rov sim dua, thiab cov kev paub cuam tshuam tau muab qhia raws li hauv qab no.

Piv nrog kab rov tav-hom motors, loj-lojntsug mounted lub cev muaj zognta tshwj xeeb bearing systems haum nrog angular hu pob bearings ntawm ib kawg. Xws li bearings yuav tsum tsis txhob sib sau ua ke nyob rau hauv rov qab orientation; txwv tsis pub lawv yuav raug puas tsuaj ncaj qha. Kev vibration tsis zoo thiab suab nrov yuav tshwm sim yog tias cov bearings tsis zaum zoo lossis axial-fit misalignment tshwm sim thaum lub sijhawm ua haujlwm.

Ib-kab angular hu rau pob bearings yog tsim los rau kev sib xyaw ua ke thiab tuaj yeem tiv taus ntau yam unidirectional thrust. Txais tos ntawm qhov tsis tsav kawg ntawm qhov loj-loj ntsug-mounted motors, lawv dais axial loads dhau lub peev xwm ntawm qhov sib sib zog nqus-groove pob bearings. Hloov pauv nrog sib sib zog nqus-groove pob bearings dimension-wise, lawv zam tsis tau pom qhov kev pheej hmoo tshwm sim los ntawm kev tsim qauv tshiab. Cov kabmob no kuj tau muab tso rau hauv ntau qhov sib txuas ua ke rau cov iav reducers, twj tso kua mis, worm-gear drives thiab tshuab-cov cuab yeej spindles raug hnyav axial loads.

Ob hom kev thauj khoom-cov kabmob muaj rau kev sib cuag pob bearings hauvntsug mounted lub cev muaj zog: hom kev txhawb nqa (cov kabmob nyob hauv qab ntawm lub rotor) thiab hom kev ncua (cov kabmob nyob saum lub rotor). Lawv sib npaug rotor qhov hnyav thiab tuav ruaj khov axial sib dhos ntawm stator thiab rotor.

Rau ob qho tib si kev teeb tsa, qhov sib nqus centerlines ntawm stator thiab rotor zoo li nws tus kheej nyob rau hauv electromagnetic quab yuam tom qab fais fab tuag. Raws li kev ua yuam kev los ntawm cov khoom siv machining thiab sib dhos, axial rotor hloov chaw tshwm sim thiab ua rau cov kabmob axial misalignment. Nyob rau hauv cov xwm txheej hnyav, electromagnetic quab yuam thiab rotor hnyav sib cuam tshuam raws li kev sib tw excitation rog, aggravating bearing suab nrov thiab kev co.

Countermeasures: Nyob rau theem tsim, txheeb xyuas cov kabmob loads thiab axial excitation txaus ntshai. Txais cov kev daws teeb meem suav nrog kev teeb tsa cov kabmob sib txuam, axial bearing restraint, kev teeb tsa peb-kev coj tus kheej thiab tsim nyog pre-misalignment ntawm stator thiab rotor. Pre-misalignment qhov ntev yuav tsum raug tswj kom tsis txhob muaj cov txiaj ntsig tawm tsam. Tsis tas li ntawd, ua kom lub cev muaj zog nyob rau hauv qhov tseeb ntsug thaum lub sijhawm khaws cia, kev thauj mus los thiab kev sim kom tsis txhob muaj kev puas tsuaj los ntawm kev puas tsuaj rau sab nraud.