Cov saw hlau ua lub luag haujlwm tseem ceeb hauv kev lag luam txij li kev tsim khoom mus rau kev ua liaj ua teb, txhua yam ua tsaug rau lawv lub peev xwm los xa hluav taws xob tau zoo. Kev nkag siab txog txhua yam ntawm cov saw hlau yog qhov tseem ceeb rau txhua tus neeg uas ua haujlwm rau lossis xav paub txog cov txuj ci tseem ceeb no. Hauv cov blog no, peb yuav tshawb nrhiav ib qho tseem ceeb ntawm cov saw hlau: suab.
Yog li, qhov siab ntawm cov saw hlau yog dab tsi? Hauv cov lus yooj yim, qhov siab yog qhov deb ntawm peb qhov txuas sib law liag. Nws yog qhov ntsuas tseem ceeb tshaj plaws rau cov saw hlau vim nws txiav txim siab qhov sib xws ntawm cov saw hlau nrog cov sprockets. Kev nkag siab txog lub tswv yim ntawm qhov siab yog qhov tseem ceeb thaum xaiv cov saw hlau kom raug rau ib qho kev siv tshwj xeeb.
Yog xav kom nkag siab zoo dua, xav txog ib txoj saw hlau uas muaj cov menyuam dov uas ncab raws ib txoj kab ncaj. Tam sim no, ntsuas qhov deb ntawm qhov chaw nruab nrab ntawm peb lub koob sib law liag. Qhov kev ntsuas no hu ua pitch. Cov saw hlau dov muaj ntau qhov loj me, txhua tus muaj nws lub hom phiaj tshwj xeeb.
Qhov loj ntawm cov saw hlau cuam tshuam rau nws lub zog tag nrho, lub peev xwm thauj khoom thiab qhov ceev. Feem ntau, cov qhov loj dua yog siv rau cov ntawv thov kev lag luam hnyav, thaum cov qhov me dua feem ntau yog siv rau cov ntawv thov uas tsis tas siv zog ntau. Qhov loj ntawm cov qhov kuj txiav txim siab qhov profile ntawm cov hniav ntawm lub sprocket, uas yog qhov tseem ceeb rau kev ua kom muaj kev sib raug zoo ntawm cov saw hlau thiab lub sprocket.
Yuav kom txiav txim siab seb qhov loj ntawm cov saw hlau uas siv rau ib daim ntawv thov yuav tsum tau xav txog ntau yam. Cov no suav nrog qhov muaj peev xwm thauj khoom, lub zog xa mus, qhov ceev uas xav tau thiab qhov chaw ua haujlwm tag nrho. Cov chaw tsim khoom muab cov lus qhia ntxaws ntxaws thiab cov duab kos los pab xaiv qhov loj ntawm cov saw hlau uas siv rau ib daim ntawv thov.
Nws tsim nyog hais tias qhov siab ntawm cov saw hlau yog tus qauv, kom ntseeg tau tias muaj kev sib haum xeeb ntawm cov chaw tsim khoom sib txawv. Qhov loj ntawm cov saw hlau feem ntau suav nrog # 25, # 35, # 40, # 50, # 60, # 80, thiab # 100. Cov lej no qhia txog qhov ntev ntawm cov saw hlau hauv yim nti. Piv txwv li, # 40 saw hlau muaj qhov siab ntawm 40/8 lossis 1/2 nti.
Txawm hais tias qhov loj ntawm lub suab yog qhov tseem ceeb uas yuav tsum xav txog, qhov suab ntawm cov saw hlau kuj suav nrog tus lej ntawm cov txuas rau ib chav ntsuas. Qhov no tuaj yeem txiav txim siab qhov ntev ntawm cov saw hlau uas xav tau rau ib daim ntawv thov tshwj xeeb. Piv txwv li, cov saw hlau 50-suab nrog 100 txuas yuav ntev ob npaug ntawm cov saw hlau 50-suab nrog 50 txuas, xav tias txhua qhov ntev lwm yam tseem nyob ruaj khov.
Hauv kev xaus lus, thaum ua haujlwm nrog cov saw hlau, nws yog ib qho tseem ceeb kom paub qhov pitch ntawm cov saw hlau. Nws hais txog qhov deb ntawm peb qhov txuas sib law liag thiab txiav txim siab qhov sib xws nrog lub sprocket. Qhov loj ntawm pitch cuam tshuam rau lub zog ntawm cov saw hlau, lub peev xwm nqa khoom thiab qhov ceev. Kev xaiv qhov loj ntawm pitch yog qhov tseem ceeb rau kev ua haujlwm zoo tshaj plaws thiab lub neej ua haujlwm ntawm koj cov saw hlau. Ib txwm saib cov lus qhia thiab cov duab ntawm cov chaw tsim khoom kom xaiv qhov loj ntawm cov saw hlau rau ib qho kev siv tshwj xeeb. Nrog rau qhov loj ntawm pitch, cov saw hlau tuaj yeem muab kev xa hluav taws xob txhim khu kev qha hauv ntau yam lag luam.
Lub sijhawm tshaj tawm: Lub Rau Hli-24-2023