Muaj ntau ntau lub cylindrical roller bearings hauv tsheb, suav nrog yuav luag txhua hom kabmob, loj thiab me. Kev sib tsoo thiab kev puas tsuaj ntawm cylindrical roller bearings kuj muaj ntau. Txij li thaum cylindrical roller bearings feem ntau ntsia hauv lub tshuab, nws tsis yooj yim rau kev kuaj pom. Lawv tsuas tuaj yeem raug txiav txim siab raws li qhov tshwm sim txhaum, thiab tom qab ntawd disassembled rau kev tshuaj xyuas. Kev siv cov cylindrical roller bearing yog qhov kev lees paub zoo los txo cov kabmob faults thiab ua kom lub neej ntev, nrog rau kev txhim kho kom raug thiab tsim nyog lubrication. Cov kabmob hauv qab no qhia txog cov kev pabcuam uas yuav tsum tau ua, kev ua txhaum thiab kev puas tsuaj ntawm cylindrical roller bearings.
1, Kev siv cov cylindrical roller bearing raug
1. Disassembly thiab sib dhos ntawm cov kabmob
Cov kabmob yuav tsum tau muab ntxuav ua ntej kev teeb tsa. Thaum lub sij hawm installation, lub auxiliary bearing yuav tsum nias ncaj thiab sib npaug nrog cov cuab yeej tshwj xeeb. Tsis txhob khob tes rauj. Tshwj xeeb, nws yog txwv tsis pub khob ncaj qha rau ntawm cov kabmob. Thaum qhov haum ntawm cov kabmob sib tw thiab lub rooj zaum lub qhov yog xoob, lub qhov rooj yuav tsum tau kho lossis hloov cov kabmob. Tsis txhob cia siab siv txoj kev pitting lossis padding tooj liab ntawm daim tawv nqaij ntawm cov kabmob mating. Thaum disassembling cov bearings, siv ib tug tsim nyog rub tawm cov kabmob, thiab tsis txhob khob cov kabmob nrog ib tug chisel, rauj, thiab lwm yam.
2. Cov kabmob lubrication
Muaj ob hom roj nplua nyeem uas feem ntau siv hauv cylindrical roller bearings: lubricating roj thiab roj. Thaum lub voj voog ceev ntawm lub ncej qis dua 4-5m / s, lossis cov khoom ntawm lub tsheb uas tsis tuaj yeem lubricated nrog lubricating roj, roj yuav tsum tau siv rau lubrication. Qhov zoo ntawm cov roj lubrication yog tias cov qauv sealing yog yooj yim, cov roj tsis yooj yim poob, thiab nws tsis cuam tshuam los ntawm qhov kub thiab txias. Ntxiv roj ib zaug tuaj yeem siv tau ntev.
Two problems should be paid attention to when using grease. One is to select the appropriate brand of grease according to the requirements of the automobile manual. For example, nano base grease should not be selected for automobile water pump bearing because of its poor water resistance. Second, the amount of lubricating grease added to the bearing should be appropriate. Generally, it is appropriate to fill only 1 / 2-L / 3 of the bearing cavity. Too much is not only useless, but also increases the running resistance of the bearing and heats it up. Special attention should be paid to the automobile hub bearing. It is necessary to advocate "empty hub lubrication", that is, only apply an appropriate layer of grease on the bearing. Otherwise, it will not only waste and poor heat dissipation, but also cause the grease to overflow due to heating, which may affect the braking performance.
Qhov zoo ntawm lubricating roj lubrication yog tsis muaj kev sib txhuam tsis kam thiab kub dissipation. Nws yog tsuas yog siv rau cov bearings nrog kev kub ceev thiab kev ua haujlwm kub ib puag ncig. Lub hom ntawm lubricating roj yuav tsum raug xaiv raws li qhov yuav tsum tau ntawm lub tsheb phau ntawv, thiab yuav tsum tau hloov nyob rau hauv lub sij hawm tom qab lub voj voog tu tsheb. Tom qab tso cov roj qub, cov txheej txheem yuav tsum tau ntxuav ua ntej ntxiv cov roj tshiab. Cov roj yuav tsum tau muab ntxiv rau cov kab ntawv teev npe lossis yaug nrog cov roj muab tub lim (nyob ntawm cov qauv tshwj xeeb thiab cov kev xav tau ntawm lub tsheb), thiab tsis muaj roj ntxiv.
2, Feem ntau ua txhaum ntawm cylindrical roller bearing
Muaj ob hom kev ua txhaum ntawm cov kabmob cylindrical cov menyuam kabmob: ib qho yog qhov kub ntawm cov kabmob nruab nrab yog siab dhau, thiab lwm qhov yog tias muaj suab nrov hauv kev ua haujlwm ntawm cov kabmob.
1. Cov kabmob kub yog siab dhau
Thaum lub sijhawm ua haujlwm ntawm lub tshuab, qhov chaw uas cov kabmob raug tso cai kom muaj qhov kub thiab txias. Thaum kov lub plhaub mechanism ntawm tes, nws yuav tsum yog qhov qub tsis txhob hnov qab. Txwv tsis pub, nws qhia tau hais tias tus kabmob kub siab dhau lawm.
Cov laj thawj rau qhov kub thiab txias yog: qhov zoo ntawm cov roj lubricating tsis ua tau raws li qhov yuav tsum tau ua los yog deteriorates, thiab viscosity ntawm lubricating roj siab dhau lawm; Lub mechanism sib dhos yog nruj heev (tsis txaus clearance); Cov kabmob sib dhos yog nruj heev; Cov kabmob sib tw tig rau ntawm ncej lossis hauv lub plhaub; Kev thauj khoom ntau dhau; tawg bearing tawb lossis dov caij, thiab lwm yam.
2. Cov suab nrov
Lub cylindrical roller bearing tau tso cai kom muaj lub suab nrov me ntsis thaum lub sijhawm ua haujlwm. Yog hais tias lub suab nrov dhau los yog muaj suab nrov txawv txav los yog lub suab nrov, nws qhia tau hais tias lub bearing yog faulty.
Yog vim li cas rau lub suab nrov ntawm cylindrical roller bearing yog complex. Ib qho yog hnav ntawm mating nto ntawm sab hauv thiab sab nrauv ntawm cov kabmob. Vim qhov hnav no, kev sib raug zoo ntawm cov kabmob thiab lub plhaub, cov kabmob thiab cov ncej raug puas, ua rau lub axis sib txawv ntawm txoj haujlwm raug thiab txawv txav thaum lub ncej txav ntawm kev kub ceev. Thaum cov kabmob nkees, cov hlau ntawm nws qhov chaw yuav tev tawm, uas tseem yuav ua rau kom lub radial clearance ntawm cov kabmob thiab tsim suab nrov txawv txav. Tsis tas li ntawd, tsis txaus cov kabmob lubrication, kev sib txhuam qhuav thiab cov kabmob tawg yuav ua rau lub suab txawv txav. Tom qab cov kabmob hnav thiab xoob, lub tawb yuav xoob thiab puas, uas yuav ua rau lub suab nrov txawv txav.
3, Kev puas tsuaj ntawm cylindrical roller bearing
Thaum lub sij hawm disassembly thiab tshuaj xyuas ntawm cylindrical roller bearing, qhov ua txhaum thiab kev puas tsuaj ntawm cov kabmob tuaj yeem raug txiav txim raws li kev puas tsuaj ntawm cov kabmob.
1. Hlau peeling ntawm raceway nto
Cov kabmob dov lub caij thiab lub nplhaib sab hauv thiab sab nrauv yog raug rau lub sijhawm hloov pauv, ua rau muaj kev ntxhov siab nyob rau lub sijhawm. Thaum tus naj npawb ntawm cov kev ntxhov siab mus txog ib qho nqi, qaug zog spalling yuav tshwm sim ntawm qhov chaw ua haujlwm ntawm dov lub caij lossis sab hauv thiab sab nrauv kev sib tw. Yog hais tias lub load ntawm cov kabmob loj dhau lawm, qhov kev qaug zog no yuav raug exacerbated. Tsis tas li ntawd, kev txhim kho cov kabmob tsis raug thiab cov ncej dabtsi yog khoov yuav ua rau kev sib tw tev tawm.
Qhov qaug zog spalling ntawm bearing raceway yuav txo qhov kev khiav haujlwm ntawm cov ncej thiab ua rau kev vibration thiab suab nrov ntawm lub tshuab.
2. Cov kabmob kub hnyiab
Muaj cov xim hluav taws rov qab rau ntawm txoj kev sib tw thiab cov khoom sib tw ntawm cov kabmob uas raug hlawv. Qhov ua rau kub hnyiab yog feem ntau tsis txaus lubrication, tsis tsim nyog los yog deteriorated lubricating roj zoo, thiab nruj heev bearing sib dhos.
3. Yas deformation
Cov pits tsis sib xws tshwm sim ntawm qhov chaw sib cuag ntawm txoj kev sib tw thiab cov menyuam ntawm cov kabmob, qhia tias cov kabmob muaj cov yas deformation. Yog vim li cas yog vim li cas nyob rau hauv qhov kev txiav txim ntawm loj static load los yog cuam tshuam load, lub zos kev nyuaj siab nyob rau hauv lub chaw ua hauj lwm nto tshaj lub yield txwv ntawm cov khoom, uas feem ntau tshwm sim nyob rau hauv lub bearing rotating ntawm tsawg ceev.
4. Kev sib tsoo ntawm cov kabmob sib tw
Qhov ua rau ntawm cov kabmob sib tw tawg tuaj yeem ua rau cov kabmob nruj dhau, cov kabmob xoob lossis lub nplhaib puab, deformation ntawm cov kabmob ntim khoom, kev ua haujlwm tsis zoo ntawm cov kabmob, thiab lwm yam.
5. Lub tawb tawg
Yog vim li cas yog tsis txaus lubrication, tawg dov caij, lub rooj nplhaib skew, thiab lwm yam.
6. Cov hlau ntawm lub tawb ua rau cov khoom dov
Qhov ua tau yog tias cov khoom dov yog daig hauv lub tawb lossis lub lubrication tsis txaus.
7. Cov haiv neeg yog hnav hnyav heev
Tej zaum nws yuav yog cov teeb meem txawv teb chaws poob rau hauv lub nplhaib lub rooj zaum, cov roj lubricating tsis txaus lossis cov roj lubricating tsis tsim nyog.
