Roller chains yog ib qho tseem ceeb ntawm ntau hom tshuab, los ntawm cov khoom siv ua liaj ua teb mus rau cov khoom siv thiab cov tshuab hnyav. Lawv tau tsim kom muaj txiaj ntsig zoo hloov hluav taws xob los ntawm ib tus ncej mus rau lwm qhov thaum tswj hwm qhov sib piv. Txawm li cas los xij, dhau sijhawm, cov hlua khi tuaj yeem hnav thiab ncab, ua rau txo qis kev ua haujlwm, nce nqi txij nkawm, thiab txawm tias lub cev tsis ua haujlwm. Nyob rau hauv tsab xov xwm no, peb yuav tshawb txog ntau yam ua rau cov menyuam saw hnav thiab elongation thiab muaj peev xwm daws tau.
Dab tsi yog roller chain hnav?
Cov menyuam saw hnav yog ib qho tshwm sim uas tshwm sim thaum ob lub ntsej muag hlau rub tawm ib leeg thaum lub sijhawm ua haujlwm, ua rau cov khoom tev tawm ntawm qhov chaw sib cuag. Cov txheej txheem hnav yog cuam tshuam los ntawm ntau yam, suav nrog kev thauj khoom, ceev, lubrication, kev sib tw thiab ib puag ncig. Cov ntsiab lus hnav feem ntau ntawm cov saw hlau yog cov bushings thiab pins, uas yog thawj "cov kabmob" cov ntsiab lus uas cov saw hlau sib txuas.
Cov menyuam saw hnav
Dab tsi yog roller chain elongation?
Raws li pom nyob rau hauv daim duab saum toj no, cov menyuam saw elongation yog tshwm sim los ntawm hnav pins thiab bushings ua rau cov saw yuav maj mam ntev. Raws li cov khoom siv saw hlau hnav, qhov chaw nruab nrab ntawm tus pin thiab bushing yuav loj dua, ua rau cov saw hlau ntev dua vim qhov chaw ntxiv ntawm qhov chaw. Qhov no ua rau cov saw hlau khiav siab dua ntawm cov hniav sprocket, ua rau cov saw hlau tsis muaj zog thiab ua rau cov hniav hlais lossis dhia tawm ntawm qhov sprocket. Qhov no feem ntau hu ua saw stretching, txawm hais tias cov saw tsis technically stretch. Tag nrho cov saw hlau feem ntau yuav tsum tau hloov thaum lawv tau ncab 3% dhau lawv qhov ntev ntev.
Feem ntau ua rau cov menyuam saw hnav thiab elongation
Ob peb yam tuaj yeem ua rau cov menyuam saw hnav thiab elongation. Qee qhov feem ntau muaj xws li:
Lubrication tsis txaus: Cov menyuam chains yuav tsum tau lubrication kom zoo los txo kev sib txhuam thiab hnav ntawm cov khoom siv. Lub lubrication tsis txaus los yog tsis tsim nyog tuaj yeem ua rau cov saw hlau hnav sai thiab ua rau elongation ntxov ntxov.
Chain Construction Quality: Ib qho tseem ceeb yog qhov zoo ntawm cov khoom siv hauv cov saw hlau. Bushings yog ib qho tseem ceeb tshaj plaws ntawm cov saw thiab tuaj nyob rau hauv ob hom: khoom bushings thiab phua bushings. Khoom bushings muaj kev hnav zoo dua li cov hlaws dai. Tag nrho Nitro chains yog tsim los nrog cov khoom zoo.
Preloading: Kuj hu ua pre-stretching, preloading yog tus txheej txheem ntawm kev siv lub load rau ib tug tshiab tsim saw hlau uas tuav tag nrho cov Cheebtsam nyob rau hauv lub saw nyob rau hauv qhov chaw, yog li tshem tawm thawj stretch. Tag nrho Nitro chains yog pre-stretched mus rau yam tsawg kawg nkaus qhov tseem ceeb uas yuav tsum tau los ntawm ANSI thiab British Standards.
Kev thauj khoom ntau dhau: Kev thauj khoom ntau dhau ntawm cov saw hlau tsim lub peev xwm tuaj yeem ua rau cov saw txuas ntxiv thiab elongate dhau sijhawm vim muaj kev ntxhov siab ntau dhau. Qhov no yog tshwj xeeb tshaj yog nyob rau hauv kev lag luam daim ntaub ntawv, qhov twg hnyav loads thiab kev kub ceev ua hauj lwm yuav ua rau kom ceev ceev thiab elongation. Loads feem ntau yuav tsum tsis txhob tshaj qhov siab tshaj plaws ua hauj lwm load teev rau ib tug muab saw loj.
Kev Tiv Thaiv: Cov av, plua plav thiab lwm yam khoom tawg tuaj yeem ua rau hauv cov saw hlau, ua rau muaj kev sib txhuam thiab hnav. Qee qhov xwm txheej, cov kab mob tuaj yeem ua rau corrosion ntawm cov khoom siv hlau, ntxiv rau kev hnav thiab elongation.
Corrosion: Cov menyuam chains ua haujlwm nyob rau hauv ib puag ncig corrosive tej zaum yuav muaj kev hnav nrawm dua vim muaj cov tshuaj lom neeg los yog cov dej noo ntawm cov hlau.
Misalignment: Thaum cov sprockets tsis zoo sib xws, cov saw yuav muaj kev ntxhov siab ntau dua, ua rau kom hnav nrawm thiab elongation. Misalignment tuaj yeem tshwm sim los ntawm kev teeb tsa tsis raug, hnav sprockets, lossis ntau dhau axial lossis radial loads.
Kev khiav hauj lwm kub: Yog tias cov saw hlau ua haujlwm kub siab tshaj qhov kev pom zoo, cov khoom siv hlau yuav nthuav dav thiab cog lus, ua rau kom hnav nrawm thiab elongation.
Dab tsi yog cov kev daws teeb meem?
Hmoov zoo, muaj ntau txoj kev daws teeb meem los daws cov teeb meem ntawm cov hlua khi thiab elongation. Qee qhov kev daws teeb meem zoo tshaj plaws suav nrog:
Lub lubrication kom zoo: Siv cov roj nplua nyeem zoo thiab ua kom muaj kev siv tsis tu ncua yuav pab txo qis kev sib txhuam thiab txuas ntxiv lub neej ntawm koj cov saw hlau.
Ntxuav: Ntxuav koj cov saw tsis tu ncua yuav pab tshem tawm cov kab mob uas ua rau hnav thiab ncab.
Kev sib raug zoo: Ua kom koj cov sprockets zoo sib xws tuaj yeem txo qhov kev ntxhov siab ntawm koj cov saw thiab txuas nws lub neej.
Load Management: Tsis txhob overloading cov saw thiab kev khiav hauj lwm nyob rau hauv qhov kev pom zoo load range tuaj yeem tiv thaiv kom ceev hnav thiab elongation.
Kev tswj qhov kub thiab txias: saib xyuas cov saw hlau ua haujlwm kub thiab xyuas kom nws nyob hauv qhov zoo
Post lub sij hawm: Oct-27-2023
