Scraping thiab sib tsoo ntawm phau ntawv bearing bush thiab thrust bush ntawm me me hydraulic turbine yog ib tug tseem ceeb txheej txheem nyob rau hauv lub installation thiab kho ntawm me me hydropower chaw nres tsheb.
Feem ntau ntawm cov kabmob ntawm cov kabmob me me kab rov tav hydraulic turbines tsis muaj cov qauv kheej kheej thiab cov thrust pads tsis muaj qhov hnyav bolts.Raws li pom nyob rau hauv daim duab: A yog aspheric qauv;B yog tsis muaj qhov hnyav qhov hnyav, thiab lub thrust pad yog ncaj qha nias rau ntawm lub ncoo ncej.Cov hauv qab no feem ntau yog tham txog cov txheej txheem, cov kauj ruam thiab cov kev cai ntawm scraping thiab installation rau daim ntawv no.
1. Cov cuab yeej npaj yog daim duab peb sab thiab ob sab oilstone.Qhov ntev ntawm daim duab peb sab poob tuaj yeem hloov kho raws li koj tus kheej tus cwj pwm.Feem ntau, nws tsim nyog siv 6-8 teev.Lub qub triangular poob qis kuj tuaj yeem hloov kho.Yog tias ua tau, koj tuaj yeem siv lub caij nplooj ntoos hlav steel los tsoo ib lossis ob rab riam, uas yooj yim dua rau khawb lub thrust pad.Kev sib tsoo ntxhib ntawm daim duab peb sab poob yog nqa tawm ntawm lub log sib tsoo.Thaum lub sij hawm sib tsoo, nws yuav tsum tau txias tag nrog dej los tiv thaiv cov duab peb sab los ntawm cua sov thiab annealing softening.Kev sib tsoo zoo yog nqa tawm ntawm lub pob zeb kom tshem tawm cov dents zoo heev thiab burrs sab laug thaum sib tsoo ntxhib.Thaum lub sij hawm sib tsoo zoo, cov roj cav (lossis cov roj turbine) yuav tsum tau ntxiv rau qhov txias.Npaj lub rooj clamp nrog qhov siab tsim nyog.Tus neeg saib xyuas tuaj yeem sib xyaw nrog cov pa luam yeeb thiab cov roj turbine lossis luam tawm liab.
2. Ntxuav, derusting thiab deburring.Cov kabmob yuav tsum tau derusted thiab deburred ua ntej scraping.Tshwj xeeb, qhov sib xyaw ua ke ntawm cov kab qhia bearing bush, cov kabmob sib koom ua ke ntawm cov kabmob thiab cov kabmob ntawm cov thrust pad yuav tsum tau ua tib zoo ntxuav.
3. Rough scraping ntawm bearing hav txwv yeem.Ua ntej, lub ntsiab ncej ntawm lub turbine yuav tsum tau leveled thiab tsau, (levelness ≤ 0.08m / M) los tiv thaiv cov khau los ntawm khawb mus rau hauv ib tug taper zoo.Maj mam thiab sib npaug sib npaug ntawm tag nrho cov kabmob nto nrog ib daim duab peb sab kom tshem tawm cov xuab zeb thiab impurities txuas rau cov kabmob nto.Cov impurities sib sib zog nqus nyob rau hauv cov kabmob alloy yuav tsum tau muab tshem tawm kom tsis txhob cuam tshuam qhov zoo ntawm scraping ncoo.
Tom qab ntxuav cov phau ntawv journal, tuav cov phau ntawv qhia bearing bush ntawm phau ntawv journal, txhim kho tus pin qhov chaw, xauv lub hau, thiab ntsuas qhov sib xyaw ua ke ntawm cov kabmob bush thiab qhov sib txawv ntawm Bush thiab phau ntawv journal nrog lub ntsuas qhov ntsuas los txiav txim siab qhov tuab ntawm daim ntawv tooj liab ntxiv rau ntawm qhov sib xyaw ua ke (padding yog rau kev saib xyuas yav tom ntej).- Feem ntau, lub ncoo tooj liab yog ob txheej txheej, thiab tuaj yeem ntxiv txog 0.10 ~ 0.20mm.Lub hauv paus ntsiab lus rau kev txiav txim siab tag nrho cov tuab ntawm lub ncoo yog tawm ntawm qhov nyiaj seem ntawm 0.08 ~ 0.20 rau cov kabmob bush;Ntawm qhov tod tes, qhov zoo ntawm scraping yuav tsum tau guaranteed, ntawm qhov tod tes, cov hauj lwm ntawm scraping vuas yuav tsum raug txo kom ntau li ntau tau.
Muab cov ntawv txiav tooj liab tso rau ntawm qhov sib koom ua ke ntawm cov kabmob hav txwv yeem, tuav ob lub qhov kabmob ntawm cov ntawv xov xwm, kaw cov ntsia hlau kho, tig cov kabmob bush thiab zom nws.Yog tias nws tsis tuaj yeem tig tau, tshem tawm cov kabmob bush, buckle nyob rau hauv ib nrab ntawm cov ntawv xov xwm, nias nws ntawm tes, zom nws rov qab thiab rov qab los ntawm kev taw qhia tangent, thiab tom qab ntawd khawm thiab zom nws thaum muaj qhov sib txawv ntawm cov kabmob bush thiab phau ntawv xov xwm.Tom qab sib tsoo, qhov sib cuag ntawm cov nplais saum npoo yuav pom cov xim dub thiab ci, thiab qhov siab dua yuav dub tab sis tsis ci.Txiav tawm qhov dub thiab ci nrog ib daim duab peb sab.Thaum cov xim dub ci tsis pom tseeb, thov ib txheej ntawm cov neeg sawv cev ntawm cov ntawv sau ua ntej sib tsoo.Sib tsoo thiab txhuam ntau zaus kom txog thaum sib cuag thiab tshem tawm ntawm cov kabmob nto thiab cov ntawv xov xwm ua tau raws li qhov yuav tsum tau ua.Feem ntau hais lus, tag nrho cov pobzeb saum npoo yuav tsum tau hu rau lub sijhawm no, tab sis tsis muaj ntau cov ntsiab lus sib cuag;Qhov kev tshem tawm tau pib ua raws li qhov yuav tsum tau ua, thiab muaj qhov nyiaj seem ntawm 0.03-0.05mm.Scrape cov kabmob ntawm ob sab ntawm flywheel feem.
4. Scraping ntawm thrust pad.Vim tias cov ntaub qhwv lub rooj zaum feem ntau raug khawb thaum lub sijhawm thauj mus los thiab khaws cia, yuav muaj burrs ntawm lub ncoo saum npoo, yog li ua ntej lo cov ntawv xuab zeb metallographic rau daim iav phaj, thiab thawb lub thrust pad rov qab rau ntawm daim ntawv xuab zeb ob peb zaug.Thaum lub sij hawm sib tsoo, ua kom cov pobzeb nto sib npaug mus rau daim iav phaj, thiab lub sijhawm sib tsoo thiab qhov hnyav ntawm txhua pobzeb yog tib yam, txwv tsis pub lub thickness ntawm thrust txawv heev, ua rau kev ua haujlwm ntawm scraping.
So daim iav daim iav thiab lub ncoo nto, nias lub thrust ncoo rau ntawm daim iav phaj, zom nws rov qab thiab tawm rau ntau tshaj kaum zaug raws li kev sib hloov ntawm lub ncoo thiab daim iav phaj, thiab tshem tawm cov thrust pad rau scraping.Tom qab tag nrho cov kabmob qhov chaw nyob rau hauv kev sib cuag zoo nrog daim iav phaj, cov kabmob tuaj yeem sib sau ua ke
5. Cov kabmob sib dhos thiab nplua nplua.Ua ntej, muab lub rooj zaum huv si rau hauv qhov chaw (ntawm lub hauv paus ncej, kho cov ntsia hlau ntawm lub rooj zaum bearing tuaj yeem txuas nrog hauv series tab sis tsis nruj), muab cov kabmob qis qis rau hauv cov kabmob, maj mam nqa cov ncej loj rau hauv cov kabmob. hav txwv yeem, kho lub rooj zaum bearing los ntawm kev ntsuas cov kabmob bush clearance, kom cov kab nruab nrab ntawm cov kabmob bush ntawm ob sab ntawm flywheel yog nyob rau hauv ib txoj kab ncaj nraim (saib saum toj: kev ua yuam kev ≤ 2 xov hlau), thiab pem hauv ntej thiab nram qab txoj haujlwm yog tsim nyog (lub ncoo yuav tsum tau ntxiv thaum qhov siab sib txawv ntawm lub rooj zaum bearing loj), thiab tom qab ntawd xauv cov ntsia hlau kho ntawm lub rooj zaum bearing.
Manually tig lub flywheel rau ob peb lem, tshem tawm cov kabmob bush thiab xyuas cov kev faib ntawm cov kabmob bush tiv tauj cov ntsiab lus.Thaum tag nrho cov kabmob nto muaj kev sib cuag zoo thiab cov kabmob bush clearance yeej ua tau raws li qhov yuav tsum tau ua (qhov kev tshem tawm yuav tsum ua raws li qhov yuav tsum tau ua ntawm daim duab. cov ntsiab lus loj nrog cov ntaub ntawv triangular thiab dilute cov ntsiab lus ntom ntom; cov qauv riam feem ntau yog sawb, uas yog siv los ua kom yooj yim rau kev khaws cia thiab kev ncig ntawm cov roj turbine, qhov yuav tsum tau muaj yog cov ntsiab lus sib cuag tau muab faib rau hauv lub kaum sab xis ntawm 60 °. ~ 70 ° nyob rau hauv nruab nrab ntawm lub qis bearing hav txwv yeem, thiab 2-3 ntsiab lus ib square centimeter yog tsim nyog, tsis ntau dhau los yog tsawg heev.
Ntxuav lub thrust pad nrog ib daim ntaub dawb.Tom qab nws nyob rau hauv qhov chaw, ntxiv ib tug me ntsis lubricating roj rau cov kev taw qhia bearing ncoo, tig lub flywheel, thiab ntxiv ib tug axial thrust rau grind lub thrust pad thiab daim iav phaj raws li nws qhov tseeb txoj hauj lwm.Kos txhua lub ncoo (txoj hauj lwm ntawm lub thrust pad nrog qhov ntsuas kub thiab ze rau ntawm qhov sib xyaw ua ke yog tsau), xyuas lub ncoo saum npoo, txhuam cov ntaub ntawv sib cuag dua, thiab sib npaug sib npaug ntawm tus pin rau sab nraum qab ntawm lub ncoo nrog daim ntaub abrasive ( qhov sib tsoo yog qhov qis dua, uas yuav tsum tau ntsuas nrog cov kab hauv qab micrometer lossis vernier caliper, uas yog piv nrog cov ntaub qhwv nyias).Ntawm qhov tod tes, lub hom phiaj yog ua kom cov ntaub qhwv ntsej zoo sib cuag nrog daim iav phaj, ntawm qhov tod tes, ua kom "thick" thrust pad thinner.Nws yuav tsum tau hais tias tag nrho 8 thrust pads muaj kev sib cuag zoo nyob rau hauv qhov tseeb txoj hauj lwm.Feem ntau hais lus, lub thrust pad ntawm kab rov tav me me turbine yog me me thiab lub load yog me me, yog li lub ncoo nto tsis tuaj yeem khawb.
6. Kev txhuam zoo.Tom qab tag nrho cov kabmob tau muab tso rau hauv qhov chaw thiab cov pob zeb ua kom tawv, ntxiv axial thrust tig, thiab kho thiab khawb raws li kev sib cuag tiag tiag ntawm cov kabmob thiab cov thrust pad kom tau raws li cov kev xav tau ntawm cov duab kos thiab cov lus qhia tshwj xeeb.
Lub qhov ntev ntawm cov roj yuav tsum tau qhib rau ntawm ob sab ntawm qhov sib koom ua ke ntawm cov kabmob bush lossis ntawm ib sab (roj mov sab), tab sis tsawg kawg yog 8 hli taub hau yuav tsum tau tshwj tseg ntawm ob qho kawg kom tsis txhob poob ntawm cov roj lubricating ntawm ob qho kawg.Cov roj inlet ntawm lub laub ncoo feem ntau suav nrog 0.5mm qis dua thiab qhov dav yog li 6 ~ 8mm.Lub bearing bush thiab thrust pad yog tsim nyog tsuas yog tom qab fine scraping
Post lub sij hawm: Dec-13-2021
