Cov kev puas tsuaj tshwm sim ntawm bushing yog alloy txheej hnav, khawb, tawg, thiab tev, tab sis qee zaum kuj muaj qee qhov txawv txav tshwm sim.
1. Tsis sib xws hnav ntawmbushing
(1) Ntau dhau hnav nyob ze ntawm qhov chaw mating ntawm bushing. Muaj ob lub laj thawj tseem ceeb: 1. Lub free qhib elasticity ntawm cov kabmob tsis txaus. 2. Lub plhaub ntawm cov kabmob uas tau xaiv tsis haum thiab qhov cuam tshuam loj heev, ua rau ntau dhau deformation tom qab nias nws mus rau hauv lub plhaub bearing thiab zawm cov kabmob npog. Yog li ntawd, thaum lub sij hawm tu, yuav tsum tau them nyiaj mloog mus rau kev kuaj dawb qhib elasticity thiab qhov siab ntawm cov bearing ncoo protruding los ntawm lub rooj zaum bearing. Yog tias qhov qhib dawb elasticity tensor tsawg dhau, yuav tsum xaiv cov pobzeb tshiab; Yog tias lub plhaub bearing siab dhau lawm, qhov me me ntawm kev kho cov ntaub ntawv tuaj yeem ua tiav ntawm qhov kawg ntawm lub plhaub bearing yam tsis muaj qhov muab qhov tseem ceeb.
Cov npoo ntawm ob sab ntawm cov kabmob yog hnav tawm. Nws feem ntau tshwm sim ntawm cov kabmob nto uas sib xws rau cov ntawv xov xwm tshiab tshiab polished crankshaft, vim kev sib tsoo tsis raug ua rau cov ntawv xov xwm busbar concave. Txhawm rau tiv thaiv qhov xwm txheej no, thaum tshawb xyuas cov ntaub ntawv hnav, ntxiv rau kev ntsuas nws txoj kab uas hla ntawm ob qhov kawg raws li ib txwm xav tau, cov ntaub ntawv nruab nrab ntawm phau ntawv xov xwm kuj tseem yuav tsum tau ntsuas. Thaum nws tsis ua tau raws li cov kev cai, cov ntawv xov xwm crankshaft yuav tsum tau rov hauv av es tsis txhob txiav cov bushing.
2. Corrosion ntawmbushing
Corrosion ntawm bushing feem ntau tshwm sim ntawm tooj liab txhuas alloy bushing yam tsis muaj coatings, thiab qhov chaw ua hauj lwm ntawm tag nrho cov kabmob plhaub nthuav tawm rab koob qhov zoo li pitting los yog pitting, nrog rau cov kabmob nto tig dub. Qhov laj thawj tseem ceeb yog kev puas tsuaj loj lossis siv tsis raug ntawm cov roj lubricating.
3. Hnav cov cim thiab cov kab xeb nyob rau sab nraum qab ntawm cov kabmob liner
Qee lub sij hawm ib qho chaw tsaus nti loj tuaj yeem tshwm rau sab nraub qaum ntawm cov kabmob, nrog cov cim kev sib txhuam pom tseeb raws qhov ncig. Nyob rau hauv cov xwm txheej hnyav, cov kabmob pad lub qhov rooj yuav tshwm elliptical vim hnav. Qhov laj thawj tseem ceeb ntawm qhov kev ua txhaum no yog kev cuam tshuam tsis txaus ntawm lub plhaub bearing thiab lub rooj zaum lub qhov lossis hnav ntawm qhov chaw qhov tseem ceeb. Nyob rau lub sijhawm no, nyob rau hauv qhov kev txiav txim ntawm cyclic loads, muaj rov ua ib ncig me ntsis misalignment kev sib txhuam ntawm cov bearing liner thiab lub rooj zaum bearing, ua rau cov kabmob liner kub thiab tom qab oxidize thiab xeb. Yog li ntawd, thaum lub sij hawm sib dhos, qhov cuam tshuam haum ntawm lub plhaub bearing (piv txwv li qhov siab ntawm lub plhaub bearing protruding los ntawm cov kabmob lub rooj zaum dav hlau) thiab qhov chaw ntawm lub plhaub bearing yuav tsum tau kuaj xyuas kom tiav, thiab kev saib xyuas yuav tsum tau them rau cov qauv thiab txheem nruj torque ntawm cov kabmob npog bolts. Thaum lub rooj zaum lub qhov rooj tawm ntawm qhov chaw vim hnav lossis lub caj dab lub qhov loj dua, tin lossis zinc tuaj yeem plated rau ntawm qhov chaw ntawm lub qhov rooj.
4. Kev tawg
Cracking yog hais txog cov tsos ntawm cov kab nrib pleb zoo nyob rau saum npoo ntawm cov kabmob alloy, thiab cov kab nrib pleb yog crisscrossed hauv lub network zoo li cov qauv uas tsis muaj qhov tsis tu ncua lossis kev taw qhia ruaj khov. Cracking yog ib tug qaug zog puas tshwm sim ntawm bushing. Yog tias tsis kho, cov roj tuaj yeem nkag mus rau hauv cov kab nrib pleb thaum lub sijhawm ua haujlwm, tsim kom muaj kev sib tsoo thiab yooj yim ua rau cov txheej txheej hlau poob rau hauv daim.
Yog vim li cas rau kev tawg: 1. Qhov kub ntawm lub plhaub bearing yog siab dhau. 2. Overloading los yog tawm ntawm roundness ntawm lub plhaub bearing yog nrog los ntawm kev muaj zog quab yuam thaum ua haujlwm. 3. Cov eccentric hnav ntawm cov bearing pads ua rau cov load tsis sib npaug.
Thaum lub sij hawm kho, txhua lub bushing uas tseem tuaj yeem ua kom lub thickness ntawm cov txheej txheej alloy thiab cov kabmob clearance tom qab xuab zeb los yog khawb tawm cov txheej txheej tawg tuaj yeem rov nruab thiab txuas ntxiv siv tom qab kev daws teeb meem. Txwv tsis pub, cov khoom tshiab yuav tsum tau siv tom qab kev daws teeb meem.
5. Npog cov vuas
Tom qab qhov tshwm sim ntawm cov nplais nplaum, cov kev ntsuas sib txuas yuav tsum tau ua raws li qib ntawm cov nplais nplaum. Yog hais tias lub plhaub bearing tsim ob peb qhov ntiav annular grooves nyob ze ntawm lub crankshaft qhov, nws tuaj yeem raug khawb thiab txuas ntxiv siv rau lub sijhawm; Yog tias cov txheej txheem alloy ntawm cov kabmob feem ntau hloov pauv lossis raug tshem tawm tag nrho, nws tsis tuaj yeem siv ntxiv lawm.
Qhov chaw sib cuag ntawm cov txheej txheej txheej txheej txheej thiab cov crankshaft phau ntawv xov xwm yuav tsum yog tsawg kawg yog 75%. Thaum kuaj xyuas qhov chaw sib cuag ntawm cov kabmob thiab cov ntawv xov xwm, feem ntau siv cov txheej txheem ntawm kev siv cov roj lead liab. Tab sis yog tias nws yog aluminium alloy bearing, vim nws tsis tshua muaj hardness, nws tseem tuaj yeem pom cov cim tiv tauj yam tsis siv cov roj lead liab. Cov txheej txheem ntawm aluminium alloy bearings feem ntau yog grey, thiab yog tias ib qho ci ntsa iab raug pom ntawm cov kabmob, nws yog ib qho kev tiv tauj.
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MG-TEX Steel nrog PTFE Fiber Npuag Bearings:
Cov khoom siv tshiab no siv cov PTFE fiber ntau overlay ntawm steel thaub qab, cov ntaub yog muaj peev xwm ua haujlwm siab thiab ua haujlwm ntev dua piv nrog cov pa 3-txheej bushes.The hlau matrix muab cov kabmob nrog kev ua haujlwm zoo heev thiab muaj peev xwm. Hloov cov cua sov tsim tawm thaum lub sijhawm ua haujlwm ntawm cov kabmob hauv lub sijhawm, thaum PTFE woven cov khoom yog tsim los siv rau hauv kev sib txhuam qhuav tag. Nws muaj qhov sib txhuam coefficient qis thiab zoo heev hnav tsis kam. Piv nrog rau cov kabmob ib txwm muaj, ntxiv rau kev ua haujlwm siab, nws tuaj yeem tshem tawm cov roj thiab tshem tawm cov txheej txheem tu, thiab nws swb zoo. Yuav tsis muaj qhov tshwm sim "nqa" .
