Kev tshuaj xyuas qhov cuam tshuam ntawm kev vuam deformation rau lub neej qaug zog ntawm cov saw hlau

Kev tshuaj xyuas qhov cuam tshuam ntawm kev vuam deformation rau lub neej qaug zog ntawm cov saw hlau

Kev Taw Qhia
Raws li ib qho tseem ceeb tseem ceeb uas siv dav hauv ntau yam kev sib kis thiab kev xa khoom, qhov kev ua tau zoo thiab lub neej ntawmcov saw hlaumuaj feem cuam tshuam loj heev rau kev ntseeg tau thiab kev ua haujlwm zoo ntawm tag nrho cov khoom siv. Ntawm ntau yam uas cuam tshuam rau lub neej qaug zog ntawm cov saw hlau, kev vuam deformation yog ib qho tseem ceeb uas tsis tuaj yeem tsis quav ntsej. Tsab xov xwm no yuav tshawb nrhiav tob txog cov txheej txheem cuam tshuam, qib ntawm kev cuam tshuam thiab kev tswj hwm kev vuam deformation rau lub neej qaug zog ntawm cov saw hlau, lub hom phiaj los pab cov kws kho mob hauv cov lag luam cuam tshuam nkag siab zoo dua txog qhov teeb meem no, yog li ua cov kev ntsuas zoo los txhim kho qhov zoo thiab kev ntseeg tau ntawm cov saw hlau, txuas nws lub neej kev pabcuam, thiab xyuas kom meej tias kev ua haujlwm ruaj khov ntawm lub tshuab.

1. Cov qauv thiab txoj cai ua haujlwm ntawm cov saw hlau
Cov saw hlau feem ntau muaj cov khoom tseem ceeb xws li phaj sab hauv, phaj sab nraud, tus pas nrig, lub tes tsho thiab lub log. Nws txoj haujlwm ua haujlwm yog xa lub zog thiab kev txav mus los ntawm kev sib txuas ntawm cov hniav log thiab cov hniav sprocket. Thaum lub sijhawm kis, ntau yam khoom ntawm cov saw hlau raug kev nyuaj siab ntau yam, suav nrog kev nyuaj siab tensile, kev nyuaj siab khoov, kev nyuaj siab sib cuag thiab kev cuam tshuam. Kev ua ntau zaus ntawm cov kev nyuaj siab no yuav ua rau lub saw hlau puas tsuaj, thiab thaum kawg cuam tshuam rau nws lub neej kev nkees.

2. Ua rau muaj kev hloov pauv ntawm kev vuam
Hauv cov txheej txheem tsim cov saw hlau, kev vuam yog ib qho txheej txheem tseem ceeb uas siv los txuas lub phaj saw hlau sab nraud nrog lub qhov pin thiab lwm yam khoom. Txawm li cas los xij, kev vuam deformation yog qhov tsis zam hauv cov txheej txheem vuam. Cov laj thawj tseem ceeb suav nrog:
Kev nkag mus rau hauv lub cua sov ntawm vuam: Thaum lub sijhawm vuam, qhov kub siab uas tsim los ntawm lub arc yuav ua rau qhov vuam kub hauv zos thiab sai, ua rau cov khoom nthuav dav. Thaum lub sijhawm txias tom qab vuam, qhov vuam yuav ntsws. Vim yog qhov kub thiab txias tsis sib xws ntawm thaj chaw vuam thiab cov khoom nyob ib puag ncig, kev ntxhov siab vuam thiab kev hloov pauv tau tsim.
Kev txwv tsis pub vuam: Yog tias qhov vuam tsis raug txwv tsis pub nruj thaum lub sijhawm vuam, nws yuav ua rau deformation nyob rau hauv qhov kev ntxhov siab ntawm kev vuam. Piv txwv li, thaum vuam qee cov phaj saw hlau sab nraud, yog tias tsis muaj clamp kom raug los kho lawv, cov phaj saw hlau yuav khoov lossis ntswj tom qab vuam.
Kev vuam tsis tsim nyog: Kev vuam tsis tsim nyog yuav ua rau muaj kev ntxhov siab vuam tsis sib npaug, uas yuav ua rau qhov kev vuam deformation hnyav dua. Piv txwv li, hauv kev vuam ntau zaus, yog tias kev vuam tsis ua raws li qhov kev txiav txim kom raug, qee qhov ntawm kev vuam yuav raug kev ntxhov siab vuam ntau dhau thiab deform.
Cov kev teeb tsa vuam tsis raug: Kev teeb tsa tsis raug ntawm cov kev teeb tsa xws li vuam tam sim no, voltage, thiab vuam ceev kuj tseem tuaj yeem ua rau vuam deformation. Piv txwv li, yog tias vuam tam sim no loj dhau, qhov vuam yuav kub dhau, ua rau cov cua sov nkag ntau dua, ua rau vuam deformation ntau dua; yog tias vuam ceev qeeb dhau, thaj chaw vuam yuav nyob ntev dhau, uas tseem yuav ua rau cov cua sov nkag ntau dua thiab ua rau deformation.

3. Lub tshuab ntawm kev cuam tshuam ntawm kev vuam deformation ntawm lub neej qaug zog ntawm cov saw hlau

Cov nyhuv ntawm kev ntxhov siab: Kev hloov pauv ntawm kev vuam yuav ua rau muaj kev ntxhov siab hauv zos hauv cov khoom xws li lub phaj sab nraud ntawm cov saw hlau. Qib kev ntxhov siab hauv thaj chaw muaj kev ntxhov siab siab dua li lwm qhov. Nyob rau hauv qhov kev ua ntawm kev ntxhov siab hloov pauv, cov cheeb tsam no yuav tsim cov kab nrib pleb qaug zog. Thaum qhov tawg qaug zog pib, nws yuav txuas ntxiv nthuav dav nyob rau hauv qhov kev ua ntawm kev ntxhov siab, thaum kawg ua rau lub phaj sab nraud tawg, ua rau cov saw hlau tsis ua haujlwm thiab txo nws lub neej qaug zog. Piv txwv li, cov qhov tsis zoo ntawm kev vuam xws li cov qhov thiab qhov hauv qab ntawm lub phaj sab nraud tom qab vuam yuav tsim cov qhov chaw muaj kev ntxhov siab, ua kom nrawm dua thiab nthuav dav ntawm cov kab nrib pleb qaug zog.

Kev sib txawv ntawm cov duab geometric thiab cov teeb meem sib phim: Kev vuam deformation yuav ua rau muaj kev sib txawv hauv geometry ntawm cov saw hlau, ua rau nws tsis sib xws nrog lwm yam khoom xws li sprockets. Piv txwv li, qhov kev khoov deformation ntawm lub phaj txuas sab nraud yuav cuam tshuam rau qhov tseeb ntawm cov saw hlau, ua rau kev sib txuas tsis zoo ntawm cov menyuam thiab cov hniav sprocket. Thaum lub sijhawm kis, qhov kev sib txuas tsis zoo no yuav tsim cov khoom cuam tshuam ntxiv thiab kev ntxhov siab khoov, ua rau muaj kev puas tsuaj ntawm ntau yam khoom ntawm cov saw hlau, yog li txo qis lub neej qaug zog.
Kev Hloov Pauv ntawm Cov Khoom Siv: Qhov kub siab thaum lub sijhawm vuam thiab cov txheej txheem txias tom qab ntawd yuav ua rau muaj kev hloov pauv ntawm cov khoom siv ntawm thaj chaw vuam. Ntawm ib sab tes, cov khoom siv hauv thaj chaw cuam tshuam los ntawm cua sov ntawm kev vuam yuav muaj cov noob hnav coarsening, hardening, thiab lwm yam, ua rau cov khoom siv tsis muaj zog thiab plasticity, thiab yooj yim tawg brittle nyob rau hauv lub nra hnyav. Ntawm qhov tod tes, qhov kev ntxhov siab seem tsim los ntawm kev vuam deformation yuav raug superimposed rau ntawm kev ntxhov siab ua haujlwm, ntxiv rau qhov xwm txheej ntxhov siab ntawm cov khoom siv, ua kom nrawm dua qhov kev sib sau ua ke ntawm kev puas tsuaj nkees, thiab yog li cuam tshuam rau lub neej qaug zog ntawm cov saw hlau.

4. Kev tshuaj xyuas ntawm qhov cuam tshuam ntawm kev vuam deformation rau lub neej qaug zog ntawm cov saw hlau
Kev Tshawb Fawb Txog Kev Sim: Los ntawm ntau qhov kev tshawb fawb sim, qhov cuam tshuam ntawm kev vuam deformation rau lub neej qaug zog ntawm cov saw hlau tuaj yeem raug tshuaj xyuas ntau yam. Piv txwv li, cov kws tshawb fawb tau ua qhov kev sim lub neej qaug zog ntawm cov saw hlau nrog ntau qib ntawm kev vuam deformation thiab pom tias thaum qhov kev vuam deformation ntawm lub phaj txuas sab nraud tshaj qhov txwv, lub neej qaug zog ntawm cov saw hlau yuav raug txo qis heev. Cov txiaj ntsig ntawm kev sim qhia tau tias cov yam xws li kev ntxhov siab concentration thiab cov khoom siv hloov pauv los ntawm kev vuam deformation yuav ua rau lub neej qaug zog ntawm cov saw hlau luv dua 20% - 50%. Qhov degree ntawm kev cuam tshuam tshwj xeeb nyob ntawm qhov hnyav ntawm kev vuam deformation thiab cov xwm txheej ua haujlwm ntawm cov saw hlau.
Kev tshuaj xyuas lej simulation: Nrog kev pab los ntawm cov txheej txheem simulation lej xws li kev tshuaj xyuas finite element, qhov cuam tshuam ntawm kev vuam deformation rau lub neej qaug zog ntawm cov saw hlau tuaj yeem kawm tau tob dua. Los ntawm kev tsim kom muaj tus qauv finite element ntawm cov saw hlau, xav txog cov yam xws li kev hloov pauv geometric, kev faib tawm ntawm kev ntxhov siab seem thiab kev hloov pauv ntawm cov khoom siv los ntawm kev vuam deformation, kev faib tawm ntawm kev ntxhov siab thiab kev tawg qaug zog ntawm cov saw hlau nyob rau hauv qhov hnyav qaug zog raug sim thiab tshuaj xyuas. Cov txiaj ntsig ntawm kev sim lej tau txheeb xyuas nrog kev tshawb fawb sim, ua kom meej ntxiv txog cov txheej txheem thiab qib ntawm kev cuam tshuam ntawm kev vuam deformation rau lub neej qaug zog ntawm cov saw hlau, thiab muab lub hauv paus theoretical rau kev ua kom zoo dua cov txheej txheem vuam thiab kev tsim qauv ntawm cov saw hlau.

5. Kev ntsuas los tswj kev vuam deformation thiab txhim kho lub neej qaug zog ntawm cov saw hlau
Txhim kho cov txheej txheem vuam:
Xaiv ib txoj kev vuam uas tsim nyog: Cov txheej txheem vuam sib txawv muaj cov cua sov nkag thiab cov yam ntxwv cuam tshuam rau cua sov sib txawv. Piv txwv li, piv nrog kev vuam arc, kev vuam siv roj tiv thaiv muaj qhov zoo ntawm cov cua sov nkag qis, kev vuam ceev ceev thiab kev vuam me me. Yog li ntawd, cov txheej txheem vuam siab xws li kev vuam siv roj tiv thaiv yuav tsum tau nyiam dua hauv kev vuam cov saw hlau kom txo qhov kev vuam deformation.
Kev kho kom haum rau cov kev vuam: Raws li cov khoom siv, qhov loj me thiab lwm yam ntawm cov saw hlau, qhov tam sim no vuam, voltage, vuam ceev thiab lwm yam kev ntsuas raug tswj kom raug kom tsis txhob muaj kev hloov pauv vuam los ntawm cov kev hloov pauv vuam ntau dhau lossis me dhau. Piv txwv li, nyob rau hauv lub hauv paus ntawm kev ua kom zoo ntawm qhov vuam, qhov tam sim no vuam thiab voltage tuaj yeem txo kom haum kom txo qhov cua sov vuam thiab yog li txo qhov kev hloov pauv vuam.
Siv cov txheej txheem vuam uas tsim nyog: Rau cov qauv saw hlau uas muaj ntau qhov vuam, cov txheej txheem vuam yuav tsum tau teeb tsa kom zoo kom qhov kev ntxhov siab vuam tuaj yeem faib sib npaug thiab qhov kev ntxhov siab hauv zos tuaj yeem txo qis. Piv txwv li, cov txheej txheem vuam ntawm kev vuam sib npaug thiab kev vuam rov qab sib cais tuaj yeem tswj tau qhov kev hloov pauv vuam.
Kev Siv Cov Khoom Siv: Kev tsim thiab siv cov khoom siv tsim nyog yog qhov tseem ceeb rau kev tswj qhov kev hloov pauv ntawm cov saw hlau. Ua ntej vuam, cov khoom siv vuam yuav tsum tau kho kom ruaj khov rau hauv qhov chaw raug los ntawm cov khoom siv kom txwv tsis pub nws txav mus los thiab hloov pauv thaum vuam. Piv txwv li, los ntawm kev siv txoj kev kho kom ruaj khov thiab siv lub zog clamping tsim nyog ntawm ob qho kawg ntawm lub phaj saw hlau sab nraud, kev khoov hloov pauv thaum vuam tuaj yeem tiv thaiv tau zoo. Tib lub sijhawm, tom qab vuam, cov khoom siv kuj tseem siv tau los kho qhov vuam kom txo qhov kev hloov pauv ntawm cov saw hlau.
Kev kho cua sov thiab kho tom qab vuam: Kev kho cua sov tom qab vuam tuaj yeem tshem tawm cov kev ntxhov siab seem ntawm vuam thiab txhim kho cov khoom siv ntawm thaj chaw vuam. Piv txwv li, kev ua kom zoo ntawm cov saw hlau tuaj yeem ua kom cov khoom siv hauv thaj chaw vuam zoo dua, txo qhov nyuaj thiab kev ntxhov siab seem ntawm cov khoom siv, thiab txhim kho nws qhov tawv thiab kev tiv thaiv kev qaug zog. Tsis tas li ntawd, rau cov saw hlau uas twb tau tsim kev hloov pauv vuam lawm, kev kho tshuab lossis kev kho hluav taws tuaj yeem siv los kho lawv kom zoo li tus qauv tsim thiab txo qhov cuam tshuam ntawm kev hloov pauv ntawm cov duab geometric rau lub neej qaug zog.

6. Xaus Lus
Kev hloov pauv ntawm kev vuam muaj feem cuam tshuam loj heev rau lub neej qaug zog ntawm cov saw hlau. Qhov kev ntxhov siab, qhov sib txawv ntawm cov duab geometric thiab cov teeb meem sib phim, thiab kev hloov pauv ntawm cov khoom siv uas nws tsim yuav ua rau cov saw hlau puas tsuaj sai dua thiab txo lawv lub neej ua haujlwm. Yog li ntawd, hauv cov txheej txheem tsim khoom ntawm cov saw hlau, yuav tsum muaj cov kauj ruam zoo los tswj kev hloov pauv ntawm kev vuam, xws li kev ua kom zoo dua ntawm cov thev naus laus zis vuam, siv cov khoom siv, ua kev kho cua sov tom qab vuam thiab kho, thiab lwm yam. Los ntawm kev siv cov kauj ruam no, qhov zoo thiab kev ntseeg siab ntawm cov saw hlau tuaj yeem txhim kho tau zoo heev, thiab lawv lub neej qaug zog tuaj yeem ntev dua, yog li ua kom ntseeg tau tias kev ua haujlwm ruaj khov ntawm kev sib kis thiab kev xa khoom, thiab muab kev txhawb nqa zoo rau kev tsim khoom thiab kev txhim kho ntawm cov lag luam cuam tshuam.