Yog tias koj tab tom nrhiav cov saw hlau rau koj cov tshuab ua haujlwm, tej zaum koj yuav tau ntsib cov lus "40 roller chain" thiab "41 roller chain." Ob hom saw hlau no feem ntau siv rau ntau yam kev siv, tab sis dab tsi ua rau lawv sib txawv? Hauv tsab blog no, peb yuav tshawb nrhiav qhov sib txawv ntawm 40 thiab 41 roller chain los pab koj txiav txim siab tau zoo rau koj cov kev xav tau tshwj xeeb.
Ua ntej tshaj plaws, nws yog ib qho tseem ceeb kom nkag siab tias ob qho tib si 40 thiab 41 cov saw hlau yog ib feem ntawm ANSI (American National Standards Institute) cov saw hlau txheem. Qhov no txhais tau tias lawv tau tsim los rau qhov loj me thiab cov qauv zoo, ua rau lawv sib pauv tau nrog lwm cov saw hlau txheem ANSI. Txawm li cas los xij, txawm tias lawv zoo sib xws, muaj qhov sib txawv tseem ceeb uas ua rau 40 thiab 41 cov saw hlau sib txawv.
Ib qho ntawm qhov sib txawv tseem ceeb ntawm 40 thiab 41 cov saw hlau yog nyob rau hauv lawv lub suab. Lub suab ntawm cov saw hlau hais txog qhov deb ntawm qhov chaw nruab nrab ntawm cov pins sib ze, thiab nws ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab lub zog thiab lub peev xwm thauj khoom ntawm cov saw hlau. Hauv cov ntaub ntawv ntawm 40 cov saw hlau, lub suab ntsuas ntawm 0.5 nti, thaum lub suab ntawm 41 cov saw hlau me dua me ntsis ntawm 0.3125 nti. Qhov no txhais tau tias 40 cov saw hlau zoo dua rau cov ntawv thov uas xav tau lub zog siab dua thiab kev ruaj khov, thaum 41 cov saw hlau yuav tsim nyog dua rau kev siv ua haujlwm sib dua.
Ntxiv rau qhov suab nrov, lwm yam tseem ceeb uas yuav tsum xav txog thaum piv 40 thiab 41 cov saw hlau yog lawv lub zog tensile. Lub zog tensile hais txog qhov siab tshaj plaws ntawm kev ntxhov siab tensile uas cov khoom siv tuaj yeem tiv taus yam tsis tawg, thiab nws yog qhov tseem ceeb hauv kev txiav txim siab qhov tsim nyog ntawm cov saw hlau rau ib daim ntawv thov. Feem ntau, 40 cov saw hlau feem ntau muaj lub zog tensile siab dua piv rau 41 cov saw hlau, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov hnyav uas cov saw hlau yuav raug rau cov khoom hnyav thiab lub zog loj.
Ntxiv mus, qhov loj ntawm cov khoom sib txawv ntawm 40 thiab 41 cov saw hlau sib txawv me ntsis. Piv txwv li, lub cheeb ntawm cov menyuam ntawm 40 cov saw hlau feem ntau loj dua li ntawm 41 cov saw hlau, uas ua rau muaj kev sib cuag zoo dua thiab kev koom tes nrog cov sprockets. Qhov sib txawv ntawm qhov loj ntawm cov menyuam no tuaj yeem cuam tshuam rau kev ua haujlwm tag nrho thiab kev ua haujlwm zoo ntawm cov saw hlau hauv ntau yam kev siv.
Lwm qhov tseem ceeb uas yuav tsum xav txog thaum xaiv cov saw hlau 40 thiab 41 yog qhov muaj cov sprockets thiab lwm yam khoom siv. Vim tias 40 cov saw hlau feem ntau siv rau hauv kev lag luam, nws yuav yooj yim dua los nrhiav ntau yam sprockets thiab cov khoom siv sib xws rau 40 cov saw hlau piv rau 41 cov saw hlau. Qhov no tuaj yeem yog qhov tseem ceeb hauv qee daim ntawv thov uas xav tau qhov loj me lossis kev teeb tsa tshwj xeeb.
Thaum kawg, qhov kev xaiv ntawm 40 thiab 41 cov saw hlau yuav nyob ntawm qhov xav tau tshwj xeeb ntawm koj daim ntawv thov. Yog tias koj xav tau cov saw hlau uas tuaj yeem tuav cov khoom hnyav thiab muab kev ua haujlwm txhim khu kev qha hauv cov xwm txheej nyuaj, 40 cov saw hlau yuav yog qhov kev xaiv zoo dua. Ntawm qhov tod tes, yog tias koj daim ntawv thov cuam tshuam nrog cov khoom sib dua thiab xav tau cov qauv saw hlau me dua, 41 cov saw hlau yuav tsim nyog dua.
Xaus lus, thaum 40 thiab 41 cov saw hlau yog ob qho tib si ntawm ANSI tus qauv series, lawv txawv ntawm qhov sib txawv, lub zog tensile, qhov loj me ntawm cov khoom, thiab kev siv tau. Kev nkag siab txog qhov sib txawv no yog qhov tseem ceeb hauv kev xaiv cov saw hlau rau koj cov tshuab thiab khoom siv. Los ntawm kev coj mus rau hauv tus account cov kev cai tshwj xeeb ntawm koj daim ntawv thov thiab xav txog cov yam ntxwv tshwj xeeb ntawm txhua hom saw hlau, koj tuaj yeem txiav txim siab paub zoo uas ua kom muaj kev ua tau zoo tshaj plaws thiab kev ntseeg siab. Txawm hais tias koj xaiv 40 lossis 41 cov saw hlau, koj tuaj yeem ntseeg siab tias ob qho kev xaiv tau tsim los ua kom tau raws li cov qauv zoo tshaj plaws thiab kev ua tau zoo rau koj cov kev xav tau kev lag luam.
Lub sijhawm tshaj tawm: Lub Peb Hlis-04-2024