Cov phaj loj thiab cov nplaim hluav taws kub (txias) tas li mills nyob hauv tsev thiab txawv teb chaws yog nruab nrog lub yob khoov cov cuab yeej, cov haujlwm ua haujlwm yob muaj lub neej luv, thiab txawm tias tshwm sim ntawm melting kev huam yuaj, yog li kev ua haujlwm txij nkawm nce, qhov kev ua haujlwm txo qis , tus nqi nce ntxiv, ua rau kev lag luam poob peev ntau, kev kub ntxhov siab yob ntau lawm.Tam sim no, nws tsis yooj yim los xam thiab ntsuas qhov load faib ntawm ib-kab dov NSK bearings.Rolling zeb bearing yog qhov sib txuam ntau ntawm cov kabmob sib dhos, vim muaj qhov hnyav thauj khoom ntawm lub tshuab zeb thiab chaw me me thiab lwm yam kev mob, kev coj tus kheej cov vaj tsev yuav tsum yog cov qauv nyias.Tus qauv tshwj xeeb no yuav ua kom tsis txhob hloov cov kabmob load kis hloov.
RL Ebaugh thiab JV Poplawski ib zaug tau sau ib tsab xov xwm ntawm Iron& Tus Kws Tsim Hluav Taws Xob los tham txog kev sib raug zoo ntawm kev ua haujlwm ntawm kev ua haujlwm, kev saib xyuas thiab kev ua haujlwm ntawm kev ua haujlwm cov menyuam. Lawv kuj muab cov kev sib tw cov txiaj ntsig ntawm cov tsis sib cuag finite element method.Nyob rau tam sim no, muaj ob peb daim ntawv qhia txog kev ntsuas ntsuas kev faib tawm ntawm yob zeb cov kabmob, uas feem ntau yog vim qhov nyuaj ntawm dov zeb bearing system cov qauv thiab cov teeb meem nyuaj ntawm ntsuas ntsuas ua haujlwm nyob rau hauv kev ua haujlwm khiav.Kev ntsuas ntawm radial load faib ntawm kub dov zeb FAG bearing tsis tau tshaj tawm.Rolling zeb yog lub tshuab ua haujlwm hnyav, yog li cov kabmob ntawm lub tshuab ntxuag yuav tsum tau muab suav rau qhov kev cuam tshuam ntawm kev tivthaiv deformation, tsis xws li kub tsis zoo rau cov teb, tshem tawm, cuam tshuam, txhuam thiab lubrication.Hauv qee cov tshuab ua haujlwm hnyav lossis cov uas tsis tshua muaj kev txhav, cov kev hloov kho ntawm lub Cheebtsam yuav cuam tshuam loj heev rau kev coj ua ntawm lub tshuab.
Yog li no, qhov feem cuam ntawm tiv thaiv deformation yuav tsum muaj nyob rau hauv tus qauv tsim ntawm qhov mechanism, kom tus qauv tsim muaj peev xwm tswj tau cov lus tsa suab thiab coj tus cwj pwm ntawm cov khoom sib dhos raws li qhov kev xav ntawm load lub xeev.Vim tias yob yog elastomer, txoj kev khoov hauv qab load yog qhov tsis tuaj yeem ua tau, yog li kev ua haujlwm yob kabmob ntawm cov tsoos plaub-siab zeb muaj qhov hnyav tawm ntawm kev coj tus cwj pwm.Qhov teeb meem no tsis tau them nyiaj txaus rau lub sijhawm ntev, uas ua rau lub neej poob qis ntawm lub neej, kev kub ntxhov tsis meej thiab lub cev qaug zog.Tom qab ntau tshaj li kaum xyoo ntawm kev tshawb nrhiav, peb tau hloov kho cov txheej txheem kev tuav tus kheej ntawm lub tshuab yob yob los ntawm kev siv tus kheej kev txhim kho lub tswv yim ntawm cov ntxuag zeb, thiab daws cov kabmob hlawv cov teeb meem ntawm dov zeb hauv paus.
Ib txoj hauv kev tshiab tau tsim rau txoj kev kawm ntawm cov load-sib qhia cov yam ntxwv ntawm cov kab ntau txoj kab, uas muab cov xwm txheej rau kev txhim kho cov tshuab tsim ntawm loj dov zeb thiab cov khoom lag luam zoo ntawm dov zeb.Kev tshawb xyuas qhov ntsuas thiab kev ntsuas hauv cov ntawv ntsuas pom qhov muaj tseeb thiab qhov tseeb ntawm qhov hloov khoom siv sib faib khoom siv.Ib txoj hauv kev tshiab tau tsim rau txoj kev kawm ntawm cov load-sib qhia cov yam ntxwv ntawm cov kab ntau txoj kab, uas muab cov xwm txheej rau kev txhim kho cov tshuab tsim ntawm loj dov zeb thiab cov khoom lag luam zoo ntawm dov zeb.
Cov kev tshawb fawb no yog ua kom muaj lub neej ntev kev sib tw ntawm lub tshuab ntxuag zeb, suav nrog kev tshawb fawb theoretical, kev tshawb fawb engineering thiab yob zeb bearing coj los sib dhos.
Ntawm lub teb chaws Ministry of Science thiab Technology, chav haujlwm ntawm Shanxi Xeev thiab kev pabcuam baosteel txhawb nqa, ua tiav cov kabmob yob thiab cov kub thiab quab yuam kev txheeb xyuas ntawm cov kabmob, dov zeb ua haujlwm yob cov kabmob tshiab theoretical tshawb fawb, kabmob thiab axial fixation cuab yeej qauv tsim, cov kabmob thiab axial fixation ntaus qauv tsim qauv, cov kabmob thiab cov kabmob thauj khoom faib thiab kub faib rau qhov kev tshawb fawb theoretical, kev sim tshuaj ntsuam thiab kev soj ntsuam kev lag luam, thiab lwm yam.Lub tswv yim tshiab tau ua tiav hauv cov hauv qab no.
(1) Txheeb xyuas cov teeb meem load ntawm cov kabmob raws li kev ua ntawm dabtsi yog khoov yob quab yuam nrog cov kev pabcuam tshwj xeeb ntawm THREE-DIMENSIONAL elastic kev sib txhuam-sib kis ntawm tus qauv txheej txheem, thiab txheeb xyuas cov thermal deformation ntawm cov kabmob nrog thaj chaw ntawm cov qauv lossis cov finite element txoj kev. Ntawm lub hauv paus no, kawm thiab tshawb pom qhov off-loading tej yam kev mob ntawm cov kab ntau ntawm cov kabmob ntawm cov ua haujlwm yob thiab cov kev ua txhaum tawm ntawm txhua kab;
(2) Ib hom tshiab ntawm cov txheej txheem thaiv kev tiv thaiv kev tiv thaiv vaj tse lub tsev yog tsim los ntawm kev siv lub tshuab dov lub tshuab ua ke txoj kev xav. Raws li qhov sib txuam ua ke ntawm khoov thiab axial quab yuam, cov menyuam tuaj yeem txhim kho axially thiab qhov kev coj tus kheej kev ua tau tuaj yeem lav tau.
(3) Lub rooj sib txuas ua ke ntawm lub rooj zaum ntawm cov kabmob thiab cov menyuam lub tog raj kheej plunger yog tsim los hloov cov qub kev ua haujlwm siab, uas tuaj yeem ua kom paub tseeb tus kheej ntawm lub rooj zaum cov kabmob thiab txhim kho lub peev xwm ntawm cov menyuam lub tog raj kheej quab yuam.
(4) Txhim kho qhov xav nkhaus ntawm cov kabmob qhov rooj, kom qhov tshem ntawm txhua kab kabmob yog tib yam tom qab nws raug rau thermal deformation ntawm kev kub ceev kom paub meej tias txhua qhov thauj khoom nqa.
(5) Cov ntsuas kev ntsuas ntawm radial load, axial quab yuam ntawm txhua yob ntawm cov kabmob, kabmob lub rooj thiab cov kabmob kub tau muab.
Txoj kev tshawb no lays lub hauv paus theoretical rau daws cov teeb meem ntawm luv luv lub neej ntawm loj zeb dov. Cov txiaj ntsig tau ua ntawv thov rau Baosteel 2050 kub ntxuag zeb, ua tau zoo los daws cov teeb meem ntawm lub neej luv thiab hlawv poob ntawm dov zeb ua ke cov kabmob.Qhov ntsuas sib piv ntawm qhov chaw qhia tau hais tias lub cuab yeej txo cov qub offset coefficient ntawm cov kabmob coj los ua ke rau 1.04 ntawm 1.47.Tus thawj qhov feem thauj khoom txo tau ntau dua 80%, lub neej ntawm txawv teb chaws German SKF cov kabmob sib xyaw tau nce los ntawm 3,209 teev txog 10670 teev, lub neej ntawm cov nplais hluav taws xob Cov Khw Muag khoom muaj cov khoom lag luam tau nce los ntawm 1300h txog 4120 teev, kom tau txais txiaj ntsig nyiaj txiag tseem ceeb , thiab rau Tuam Tshoj kom ua tiav qhov tiav ntawm cov phaj loj thiab pob zeb zeb ua tiav kev teeb tsa cov khoom tseem ceeb hauv tsev.