Thaum lub sijhawm ua haujlwm ntev - lub sijhawm ua haujlwm ntawm lub twj tso kua dej, nws yog ib qho ua rau muaj kev hnav ntawm cov kabmob vaj tse ntawm lub twj tso kua mis bearing thav duab, hnav ntawm txoj haujlwm bearing, tawg thiab tawg ntawm lub twj tso kua mis lub cev, cavitation thiab yaig hnav ntawm lub twj tso kua mis. Tom qab cov teeb meem saum toj no tshwm sim, cov kev daws teeb meem rau kev lag luam yog kho lawv los ntawm kev vuam lossis txhuam thiab plating, tab sis ob qho tib si muaj qee qhov tsis zoo: cov thermal stress generated los ntawm kub kub vuam tsis tuaj yeem raug tshem tawm tag nrho, uas tuaj yeem ua rau cov khoom puas tsuaj thiab ua rau bending lossis tawg ntawm cov khoom; Txawm li cas los xij, hluav taws xob txhuam plating yog txwv los ntawm lub thickness ntawm txheej thiab nws yooj yim rau tev tawm. Ob txoj kev siv hlau los kho cov hlau thiab tsis tuaj yeem hloov qhov "nyuaj mus rau nyuaj" haum kev sib raug zoo. Raws li kev sib koom ua ke ntawm ntau lub zog, nws tseem yuav ua rau hnav ntxiv. Niaj hnub nimno Western lub teb chaws feem ntau siv cov khoom siv polymer sib xyaw ua ib txoj hauv kev kho rau cov teeb meem saum toj no, uas muaj cov adhesion muaj zog, zoo heev compressive zog thiab lwm yam khoom siv. Daim ntawv thov ntawm cov ntaub ntawv polymer rau kev kho yuav ua tau yam tsis muaj disassembly lossis machining. Tsis muaj kev cuam tshuam ntawm vuam thermal kev nyuaj siab, thiab kho thickness tsis txwv. Nyob rau tib lub sijhawm, cov khoom siv hlau ntawm cov khoom tsis muaj qhov hloov pauv, uas tuaj yeem nqus tau qhov cuam tshuam thiab kev co ntawm cov khoom siv, zam qhov muaj peev xwm ntawm kev hnav ntxiv, thiab txuas ntxiv lub neej kev pab cuam ntawm cov khoom siv, txuag ntau downtime rau cov lag luam thiab tsim kom muaj nuj nqis loj nyiaj txiag.
Static balance ntawm impeller
Thaum lub twj tso kua mis rotor ua haujlwm ntawm kev kub ceev, yog tias nws qhov loj tsis sib npaug, lub zog centrifugal loj yuav raug tsim tawm thaum lub sij hawm tig, ua rau kev co lossis kev puas tsuaj rau lub twj tso kua mis dej. Qhov sib npaug ntawm lub rotor yog ua tiav los ntawm qhov sib npaug ntawm nws cov khoom sib txawv, nrog rau cov ncej, impeller, lub tes tsho ncej, qhov sib npaug disc, thiab lwm yam. Yog li ntawd, kev txheeb xyuas qhov sib npaug zoo li qub yuav tsum tau nqa tawm ntawm cov impellers tshiab. Txoj kev tshwj xeeb yog:
(1) Txhim kho lub impeller rau ntawm lub ntsej muag cuav thiab muab tso rau ntawm lub rooj zaum zoo li qub uas tau hloov kho kab rov tav. Muaj ob txoj hauv kev ntawm lub rooj zaum xeem, thiab cov axis cuav tuaj yeem dov dawb rau ntawm lawv.
(2) Kos rau sab ntawm lub impeller uas hnyav dua. Yog tias qhov zoo ntawm lub impeller tsis sib npaug, qhov hnyav dua ib txwm cia li tig downwards. Ntxiv cov blocks hnyav (siv cov nplaum nplaum los yog cov clamps ntxiv los yog tshem cov hlau phaj) mus rau qhov sib luag ntawm qhov hnyav dua (piv txwv li sab sib dua) kom txog thaum lub impeller tuaj yeem nres ntawm txhua txoj haujlwm.
(3) Ntsuas qhov hnyav ntawm qhov hnyav hnyav. Tsis yog los ntawm kev ntxiv qhov hnyav ntawm sab sib zog ntawm lub impeller, tab sis los ntawm kev txo qhov hnyav ntawm sab hnyav kom ua tiav qhov sib npaug ntawm lub impeller. Thaum txo qhov hnyav, milling lossis sib tsoo nrog lub log sib tsoo tuaj yeem siv tau (thaum qhov kev tshem tawm tsis loj), tab sis nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qhov tob ntawm milling los yog sib tsoo yuav tsum tsis txhob ntau tshaj ib - peb ntawm lub thickness ntawm impeller npog phaj. Qhov tso cai sib txawv ntawm lub impeller tom qab qhov sib npaug zoo li qub yuav tsum tsis pub tshaj cov khoom ntawm sab nraud ntawm lub impeller thiab 0.025g / mm. Piv txwv li, rau lub impeller nrog ib txoj kab uas hla ntawm 200mm, qhov kev sib txawv ntawm qhov tso cai yog 5g.
Disassembly thiab sib dhos ntawm coupling
(1) Thaum tshem cov coupling, tsis txhob tsoo nws ncaj qha nrog rauj. Hloov chaw, siv tus pas nrig tooj liab ua lub cushion, thiab ntaus lub hub coupling es tsis txhob ntawm ntug sab nrauv, vim nws muaj kev cuam tshuam rau kev puas tsuaj. Txoj kev zoo tshaj plaws yog siv tus nuv kom disassemble lub coupling. Rau me me thiab nruab nrab- cov twj tso dej loj, qhov sib txuas yooj yim tshem tawm vim nws qhov cuam tshuam me me. Rau cov twj tso kua dej loj, muaj qhov cuam tshuam loj ntawm lub coupling thiab ncej, yog li cov coupling yuav tsum tau rhuab thaum lub sij hawm disassembly.
(2) Thaum sib dhos couplings, xyuam xim rau cov lej tseem ceeb (rau kev sib txuas nrog ob lossis ntau tus yuam sij). Thaum siv tus pas nrig tooj liab los tawm tsam, yuav tsum tau them nyiaj rau qhov chaw ntaus. Piv txwv li, thaum tapping lub ntsej muag kawg ntawm lub qhov taub, nws yog ib qho yooj yim uas yuav ua rau lub qhov ntawm lub qhov shaft shrink, ua rau nws tsis yooj yim sua kom lub ncej hla; Knocking ntawm ntug sab nrauv ntawm lub log tuaj yeem ua rau lub ntsej muag ntawm lub ntsej muag tau yooj yim puas tsuaj, uas yuav cuam tshuam rau qhov tseeb ntawm kev ntsuas thaum siv lub ntsuas ntsuas ntsuas rau kev sib tw yav tom ntej. Rau couplings nrog loj cuam tshuam haum, lawv yuav tsum tau rhuab ua ntej installation.
(3) Coupling pins, txiv ntseej, ntxhua khaub ncaws, thiab roj hmab ncoo yuav tsum xyuas kom meej tias lawv cov kev qhia tshwj xeeb thiab qhov ntau thiab tsawg zoo ib yam kom tsis txhob cuam tshuam qhov sib npaug ntawm qhov sib txuas. Cov cim sib xws yuav tsum tau ua rau ntawm cov hlua txuas txuas thiab sib txuas txuas tus pin qhov txhawm rau tiv thaiv kev teeb tsa tsis raug.
(4) Qhov haum ntawm qhov sib txuas thiab cov ncej feem ntau txais kev hloov pauv haum, uas yuav ua rau muaj kev cuam tshuam me me lossis tshem tawm. Rau kev sib txuas nrog lub log ntev dua, kev hloov pauv hloov pauv tuaj yeem siv tau, vim tias lub qhov taub ntev dua thiab qhov saum npoo yog ntxhib thiab tsis sib xws, uas yuav ua rau muaj kev cuam tshuam tom qab sib dhos. Yog tias qhov haum ntawm qhov sib txuas thiab cov ncej tau pom tias xoob dhau lawm, cuam tshuam rau qhov sib txuam ntawm lub qhov thiab ncej, kho vuam yuav tsum tau nqa tawm. Punching los yog tooj liab hauv ob sab phlu ntawm ncej yog ib qho kev daws teeb meem ib ntus thiab tsis tuaj yeem suav tias yog txoj hauv kev zoo tshaj plaws.
