Yuav ua li cas txiav txim qhov zoo ntawm kev sib txhuam phaj?
Kev sib txhuam ntawm lub disc nres thiab lub nres nres ua ib qho kev sib txhuam, uas ua rau lub zog tawg thiab hloov lub zog kinetic ntawm lub tsheb mus rau hauv lub zog cua sov. Thaum braking, lub luj ntawm lub tsheb yog pauv mus rau pem hauv ntej qag, thiab lub brakes nyob rau hauv pem hauv ntej log yog inevitably raug rau ib tug loj braking quab yuam. Yog li ntawd, lub hauv paus nres nres thiab nres nres yog cov ntsiab lus tseem ceeb tshaj plaws nyob rau hauv lub tsheb, thiab lawv yuav raug kub hnyiab, mechanical thiab chemical stress. Hualong kev sib txhuam editor qhia rau koj tias kev ua haujlwm ntawm lub ncoo nres yuav tsum ua tau raws li peb txoj cai: kev nyab xeeb, kev nplij siab thiab kev pabcuam lub neej. Cov txheej txheem rau kev ntsuam xyuas cov pawm nres feem ntau suav nrog cov hauv qab no:
1. Braking nrov - txhawm rau tiv thaiv lub suab nrov, cov khoom siv vibration damping feem ntau yog siv rau ntawm qhov sib txhuam txhuam, nrog rau kev co damping pads thiab anti-vibration kua nplaum.
Braking nrov yog tus yam ntxwv ntawm kev txhawj xeeb tshwj xeeb rau cov neeg siv. Feem ntau hais lus, lub suab nrov yog tshwm sim los ntawm kev vibration los ntawm kev sib txhuam tsis sib haum ntawm lub nres nres thiab lub nres nres. Lub suab nthwv dej ntawm qhov kev co no tuaj yeem pom hauv lub tsheb. Kuj tseem muaj ntau hom suab nrov thaum braking. Peb feem ntau paub qhov txawv ntawm lawv raws li theem ntawm lub suab nrov, xws li lub suab nrov tsim thaum lub sijhawm braking, lub suab nrov nrog rau tag nrho cov txheej txheem braking, thiab lub suab nrov tsim tawm thaum lub nres nres. Lub suab nrov tsawg zaus ntawm 0-50Hz yog imperceptible nyob rau hauv lub tsheb, thiab tus neeg tsav tsheb lub suab nrov ntawm 500-1500Hz yuav tsis xav tias nws yog braking nrov, tab sis tus neeg tsav tsheb ntawm high-frequency suab ntawm {{ 4}}Hz yuav xav tias nws yog lub suab nrov braking.
Lub ntsiab kev txiav txim siab ntawm nres lub suab nrov muaj xws li nres siab, ncoo kub, tsheb ceev thiab huab cua. Txhawm rau tiv thaiv lub suab nrov, cov khoom siv vibration damping feem ntau yog siv rau ntawm cov ntaub thaiv kev sib txhuam, nrog rau cov ntaub damping thiab cov roj hmab los tiv thaiv kev vibration.
2. Kev sib txhuam coefficient - tus nres nres zoo, nws cov kev sib txhuam coefficient yuav tsum siab txaus thiab ruaj khov nyob rau hauv ntau yam kev tsav tsheb.
Lub dynamic kev sib txhuam coefficient ntawm lub nres nres txiav txim siab lub braking quab yuam, thiab kuj plays lub luag hauj lwm txiav txim siab nyob rau hauv lub braking tshuav nyiaj li cas thiab stability ntawm lub tsheb tuav thaum lub sij hawm braking. Kev txo qis hauv coefficient ntawm kev sib txhuam ua rau muaj kev hloov pauv loj hauv kev ua haujlwm braking, tej zaum yuav ua rau muaj qhov nce ntxiv ntawm kev sib tsoo. Yog li ntawd, lub coefficient ntawm kev sib txhuam ntawm lub brake pads yuav tsum tau guaranteed nyob ruaj khov nyob rau hauv tag nrho cov tsav tsheb tej yam kev mob (ceev, kub, av noo thiab siab) thiab tag nrho cov kev pab cuam lub neej. Uas yog hais tias, ib tug zoo nres ncoo yuav tsum muaj ib tug siab txaus kev sib txhuam coefficient thiab yuav ruaj khov nyob rau hauv ntau yam tsav tsheb.
3. Cov khoom siv sib txhuam - Lub tshuab nres tsheb zoo tsis muaj cov asbestos, tsis tas li ntawd, tab sis cov khoom sib txhuam yuav tsum tau sim kom tsis txhob muaj cov khoom kim heev thiab tsis paub meej ntawm fibers thiab sulfides.
Kev sib txhuam cov ntaub ntawv tsim nyog tsim nyog yuav ua kom muaj zog compressive zoo. Kev sib txhuam cov ntaub ntawv hauv ob sab phlu yog tsim los ntawm plaub cov ntaub ntawv raw: cov ntaub ntawv hlau, cov ntaub ntawv muab tub lim, cov neeg ua haujlwm plam thiab cov khoom siv organic. Tus txheeb ze proportions ntawm cov ntaub ntawv no nyob ntawm seb qhov kev siv ntawm kev sib txhuam hauv ob sab phlu thiab qhov yuav tsum tau coefficient ntawm kev sib txhuam. Friction material formula yog nruj me ntsis txwv tsis pub, tsuas yog cov chaw tsim khoom paub. Hauv kev sib txhuam hauv cov txheej txheem, asbestos tau pom tias yog cov khoom siv hnav-tiv taus, tab sis tom qab nws paub tias asbestos fibers muaj kev phom sij rau kev noj qab haus huv, cov khoom no tau maj mam hloov los ntawm lwm cov fibers. Niaj hnub no, lub tshuab nres tsheb zoo yog qhov tsis muaj asbestos kiag li, thiab tsis tas li ntawd, tab sis cov khoom siv sib txhuam yuav tsum tau sim kom tsis txhob muaj cov khoom kim thiab tsis paub tseeb ntawm fibers thiab sulfides.
4. Shear lub zog - xyuas kom meej tias nws yuav tsis poob los yog tawg txawm nyob rau hauv huab cua txias
Lub zog shear ntawm lub brakes yog lwm qhov kev ntsuas tseem ceeb. Txawm hais tias nws yog lub zog shear ntawm cov ntaub qhwv lawv tus kheej, lossis kev sib raug zoo ntawm cov pawm nres thiab cov phaj rov qab, nws yog ib qho tseem ceeb kom ntseeg tau tias lawv yuav tsis tawm los yog tawg, txawm tias nyob rau hauv cov xwm txheej hnyav.
