Dab tsi yog cov kev txwv ntawm sij hawm siv lub ntsuas mis?
Hav! Peb feem ntau tau nug los ntawm Auto mechanics lossis cov tswv tsheb tsheb: "Sijom Siv PulleyS R tau yooj yim thiab ntsiag to - puas yog qhov kev xav tsis tu ncua, tsis muaj ib yam dab tsi tsis txaus siab, "tsis muaj ib yam dab tsi tsis txaus siab, tsis muaj ib yam dab tsi los xij kev hloov kho, ua rau nquag ua haujlwm hauv lub cav kub, thauj khoom muaj peev xwm ua tsis tau zoo li " Pulley deformed los ntawm overheated grates thaum lub sij hawm siab ntev ntawm cov kev txwv lub zog, ua rau muaj kev phom sij rau lub sijhawm, kev ua haujlwm txaus ntshai, kev nyab xeeb {9 {9} Nrog cov tswv yim kom txo cov xwm txheej no thiab tiv thaiv "kev phom sij me me los ntawm kev nce mus rau hauv kev ua tsis tiav."
Ua ntej, nkag siab: Cov haujlwm muaj nuj nqi thiab kev txwv ntawm lub sijhawm ntawm lub sijhawm PULLEY
Tshuaj ntsuam nws cov kev txwv yuav tsum tau tshuaj peb qhov tseem ceeb tshaj plaws {{}}}} -}}} kom tsis txhob muaj cov kev ntsuas superficial.
1. Cov qauv kev sib kis thiab kis tau tus mob hauv lub sijhawm PULLEY
Timing pulell feem ntau muaj ob ntu:Lub "pulley lub cev" thiab "pulley zawj." Lub cev pulley yog feem ntau ua los ntawm txhuas alloy lossis cam khwb cia hlau, thaum lub zawj yuav tsum meej txog kev siv roj (roj hmab nrog cov txheej txheem siv fiber ntau). Thaum muaj kev sib kis, torque yog pauv los ntawm kev sib koom tes ntawm cov zawj thiab txoj hlua khi. Cov ntsiab lus tseem ceeb yog "Xoom Slippage thiab Xoom hniav hla." Cov.
Qhov kis tau tus kab mob no lub cim ntsuas hluav taws xob:
{{0- Lub cev Pulley yuav tsum muaj lub zog txaus thiab nruj los tiv thaiv kev siv tawv thiab cuam tshuam;
{{0- Pulley Groovision Precision (Suab, Hniav
- Cov haum muaj tseeb ntawm lub cev pulley thiab ncau (coaxiality, qhov tseem ceeb, tsis muaj eccentric hnav yuav ua rau.
Piv txwv li, ib tug zawj ntseej sib txawv tshaj li 0.1mm ua rau muaj kev tsis sib haum xeeb ntawm txoj siv siv cov hniav, nrawm hauv cov khoom hnav. Qhov tseem ceeb no ib qho kev txwv ntawm lub sijhawm timing periecys {2} Lawv cov khoom siv heev ntawm kev luam tawm ntawm machining precision thiab cov khoom siv.
2. Cov ntsiab lus ntev ntawm kev txwv kev ntsuas: 4 cov ntsiab lus tseem ceeb
Cov kev txwv ntawm lub sijhawm lub sijhawm tsis suav nrog cov teeb meem tab sis cuam tshuam thoob plaub qhov ntev uas ua rau muaj kev cuam tshuam kev kis mob. Cov qauv no tsom kwm ntawm kev tsom xam tom qab no:
Cov Khoom Siv Khoom Zoo Nkauj:Pulley lub cev thiab cov menyuam yuav tsis tuaj yeem tiv thaiv huab, cov roj paug tsis huv, lossis thaj chaw ib puag ncig zoo sib xws, ua rau kev laus thiab deformation.
Load thiab kev txwv ceev:Tshaj kev tsim lub zog torque thiab nrawm nrawm yuav ua rau hniav hla lossis tawg.
Kev Txij Nkawm Tswj Xyuas Kev Lag Luam: Kev tshawb xyuas nquag nquag thiab kev saib xyuas yog; Kev tsis saib xyuas cov no tuaj yeem ua rau ua tiav tsis tiav;
Kev Nyab Xeeb Kev Nyab Xeeb Txwv:Tsis muaj tus kheej -} tiv thaiv mechanisms, tsis ua tiav yam tsis muaj cov cim ceeb toom, feem ntau ua rau muaj kev ua tsis zoo.
Cov kev txwv no tau nthuav dav nyob rau hauv high - kub, siab} Cov tswv yim dav dav, constiting cov tswv yim ntau zaus ntsib teeb meem cov teeb meem uas tsis tau tshwm sim.
Thib ob, 5 tseem ceeb txwv ntawmSijom Siv PulleyS: ib qho kev rhuav tshem los ntawm cov khoom rau kev nyab xeeb
Tom ntej no, peb yuav dissect cov kev txwv ntawm lub sij hawm siv pulleys hla kev kho mob, thiab cov khoom siv kev nyab xeeb, thiab siv cov ntaub ntawv thoob ntiaj teb "}} Qhov no yuav pab koj nkag siab "nyob rau hauv qhov xwm txheej uas lawv nquag dhau lawm."
1. Cov khoom siv tsis zoo: nquag tsis ua tiav qhov tsis kub thiab cov roj paug tsis huv, txo li lub neej
Lub cev pulley thiab nws cov khub siv sij hawm ua kom pom kev ua kom ntev dua li cov iav drives, sawv cev rau kev txwv uas tseemceeb tshaj plaws:
High-temperature environments (>120 Qib):
Cov khoom siv log (piv txwv li, txhuas alloy) yauv tawm "ntawm kev tiv thaiv kub, txo qis zawj qhov tseeb (piv txwv li, suab nce siab los ntawm 0.15mm). Qhov no nthuav tawm cov kev sib koom tes nrog txoj siv tawv, ua rau cov hniav tsis sib haum.
Ib qho ntxiv, thermal deformation ntawm lub cev pulley yuav ua rau txoj siv tshiab nrawm txawm tias tom qab hloov chaw, vim tias muaj kev sib tw zoo.
Tsawg - qhov chaw dej kub (<-20°C):
Cov roj hmab siv thaum kub ntawm qis kub, poob elasticures thiab nquag mus rau "Hniav pob txha lov" thaum lub sijhawm rub tawm. Cam khwb cia cov mem mem tsis muaj qhov muaj txaus nyob rau hauv cov khaub thuas txias, ua rau muaj kev cuam tshuam kom tawg nyob rau hauv kev cuam tshuam. Ib sab qaum teb tsav tsheb tau paub txog lub cav pib thaum lub caij ntuj no pib thaum lub suab muaj tseeb ua tsis tau zoo nrog lub pulley, ua rau nws snap.
Roj tuaj yeem sib kis:
Kev siv roj ntxiv tuaj yeem pom cov chaw sib txuam ntawm kev sib txuas ntawm lub sijhawm siv thiab pulley unkinges, kev sib txhuam txoj siv kev sib txhuam cov coefficiient thiab ua rau "swb." Ib txhij, roj corrodes cov roj hmab siv, ua rau o thiab tshem tawm. Cov roj residue ntawm Pulley chaw kuj ua rau "hnav ris tsho."
Nyob rau hauv sib piv, iav drives ({- hlau siv) withstand kub ntawm -40 txog rau 200℃zoo siab dua huab cua kev tiv thaiv rauSijom Siv Pulleys.
2. Load thiab Kev Txwv Ceev: nquag rau "Kev Tshaj Tawm" kev ua yeeb yam zoo nyob rau hauv High Borque / Kev Kub Ceev
Tus xa cov txheej txheem ntawm lub sij hawm muaj pulleys inherently txwv lawv lub peev xwm los lis kev ceev ntau thiab ua rau "zawv zawg breakage":
High - Torque cov ntawv thov (piv txwv li, turbocharged tshuab, hnyav {{Dosut Truck):
Thaum kis lub zog tshaj lub Pulley tus tsim muaj peev xwm, kev ntxhov siab ntawm kev zawj keeb kwm tuaj yeem ua rau "cov kev sib tsoo ua tiav," ua kom tiav Groove tsis ua haujlwm hnyav. Piv txwv li, lub cav turbocharged (ntau kawg torque 350 n· m) thaum xub pib nruab nrog aSijom Siv PulleyKev paub hauv paus nrib pleb vim muaj kev nrawm nrawm, ua rau pulley tsis ua tiav tom qab 10,000 mais. Qhov teeb meem tau daws tag los ntawm kev hloov mus rau lub iav tsav system.
Cov fiber -}} reinfor reinfor reinfor reinfor reinfor reinfor reinfor of of of bel belောင်း siv txoj siv sia thiab deformation nyob rau hauv lub siab torque, ua rau txoj siv tawv rau "ncab." Qhov no nce qib kis kev sib kis no, ua rau muaj qhov tsis muaj tseeb valve sijhawm. Yog li, lub cav hluav taws xob cav tsawg dua li 10% -15%, thiab kev siv roj nce los ntawm ntau tshaj 5%.
High - rpm tej yam kev mob (piv txwv li, sib tw tshuab, siab {{revvetaiger tsheb):
Qhov siab tshaj 6000 RPM, Sij Hawm Pulleys Exhitit Me me eccentric kev sib tw vim tias muaj kev sib koom tes rau Centrifas thiab txoj siv sia thiab ua rau "high- zaus hniav hla kev".
3. Kev nqis tes siab ntawm Machining Precision: yuam kev me me ua tsis tiav
Sij hawm ua lub pulleys xav tsis heev machining precision rau lub cev pulley. Tsis muaj peev xwm me me yuav ua rau kev kis tsis ua haujlwm, tsis kam txwv kev txwv ntawm kev tsim khoom thiab tu:
Groovision precision sib cav:
Cov duab sib txawv ntau tshaj 0.05mm lossis cov hniav profile sib txawv tshaj 0.03mm ua rau muaj kev thauj mus los ntawm 0.03 hli ua rau muaj kev thauj mus los ntawm 0. {{{4 4}} 5 zaug. Ib lub khw kho tau hloov cov tsis yog-oem sijhawm sij hawm pulley (nrog cov zawj lub suab sib txawv ntawm 0.08mm), ua rau muaj 50% siv dua li 50,000 mais.
Yog tias qhov zawj tob roughness ra ntau dua 1.6μm, kev sib txhuam tsis muaj zog, tsis tsuas yog ua rau muaj lub neej tsis zoo, txo lub neej ntev los ntawm 20%.
Pulley - Ncej Fitre Precision Deviation:
Ib qho kev tshem tawm ntau tshaj 0.01mm ntawm lub cev pulley thiab camshaft / crankshaft ua rau "eccentric kev sib hloov" ntawm lub cev pulley. ua rau kev hloov kho txoj siv sia thaum sib txawv thiab "ua ntu zus kev hloov pauv" uas nrawm nrawm nrawm nrawm. Nyob rau hauv ib lub tsheb qauv, Pulley Ncej ris ris tsho hnav (nrog kev tshem tawm ntawm 0.03 hli) ua rau muaj txoj siv sia ntawm 0.03 hli) ua rau muaj kev ua haujlwm tsis tu ncua, xav tau ob lub hlis nyob hauv peb lub hlis;
Coaxiality sib txawv:
Kev coaxiality sib txawv tshaj 0.02 hli ntawm crankshaft pulley thiab camshaft pulley ua rau "skewed kev koom tes" ntawm txoj siv. Qhov no intensifies sab hnav thaum tseem teeb meem tsis txawv txav ntawm lub pulley griete, tsim "vej voj voog."
Nyob rau hauv sib piv, iav drives muab siab dua rau kev siv lub tshuab txuas tsis muaj qhov tsis muaj tseeb. Cov kev sib txawv me me tsis ua rau muaj kev poob qis, ua rau muaj cov nqi kho tus nqi qis dua.
Thib peb, Yuav ua li cas mitulious timing pulley txwv? 4 Cov Tswv Yim Lus Qhia
Txawm hais tias cov kev txwv ntawm lub sijhawm xaiv cov pulleys, kev xaiv tsa "kev tu ua haujlwm zoo, thiab kev ua haujlwm tsis txaus ntseeg" tuaj yeem txo cov kev pheej hmoo txaus ntshai thiab txuas ntxiv lub neej:
1. Xaiv cov khoom siv uas tsim nyog raws cov kev ua haujlwm cav: Zam "overloading lub system"
Vehicles in harsh environments (high temperatures, dusty conditions, frequent short trips): Select "weather-resistant" timing pulleys (with anti-corrosion coating on the pulley surface and belts made of oil-resistant, high-temperature-resistant rubber), and shorten the maintenance cycle by 20% -30%.
2. Kev ntsuas hluav taws xob meej thaum lub sij hawm teeb tsa: txo cov kev pheej hmoo ua yuam kev ntawm qhov chaw
Nrhiav Kev Tsim Kho Lub Khw:Sij hawm hloov chaw ntawm lub khw muag khoom kom paub meej tias muaj kev ntsuas lub sijhawm (sib piv rau qib (sib txawv) thaum lub sijhawm sib dhos.
Soj ntsuam kom haum:Ua ntej txhim kho lub pulley, tshawb xyuas qhov kev tshem tawm ntawm tus ncej bore thiab ntsuas (ntsuas cua (tshem tawm tsawg dua lossis sib npaug rau 0.01mm). Hloov cov tes tsho hnav los yog pulley yog tias tshem tawm ntau dhau;
Xeem Kev Ua Haujlwm:Tom qab kev teeb tsa, pib lub cav thiab kaw rau 10-15 feeb. Mloog cov suab nrov txawv txawv (piv txwv, squeaking yuav qhia txoj siv hlua khi yog cov tawv tawv dhau los yog pulley txoj kev sib cav sib cav). Tom qab ntawd siv cov cuab yeej kuaj mob los nyeem cov ntaub ntawv sijhawm valve. Tsuas yog npaj ua haujlwm ib txwm ua tom qab lees paub tsis muaj kev sib txawv.
Tiv Tauj Peb
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