Kev ua haujlwm ntawm choj bearings nyob ntawm 70% ntawm kev xaiv raug thiab 30% ntawm kev teeb tsa kom raug. Kev xaiv yuam kev tuaj yeem ua rau cov kabmob overload tsis ua haujlwm thiab tsis sib haum nrog deformation; Kev teeb tsa tsis raug tuaj yeem ua rau lub siab tsis sib xws, tsis sib cuag, jamming, thiab ua rau lub neej luv luv. Kab lus no tsom mus rau ob qhov tseem ceeb -kev xaiv thiab kev teeb tsa- thiab qhia txog cov kev qhia tshwj xeeb thiab kev tswj xyuas.
Kev xaiv meej ntawm Choj Bearings - Ua raws li Peb Cov Cai
1. Kev xaiv raws li Load Capacity
Cov kabmob muaj peev xwm yuav tsum tau txiav txim siab raws li tag nrho cov khoom tuag ntawm tus choj superstructure, cov tsheb thauj khoom nyob, thiab cov khoom thauj ntxiv.Lub peev xwm tsim cov kabmob yuav tsum suav nrog kev nyab xeeb ntawm 1.2 txog 1.5 zaugkom tsis txhob ntev - lub sij hawm overload, uas tuaj yeem ua rau cov roj hmab tawg thiab cov khoom siv hlau deformation. Rau me me - thiab nruab nrab- ncua kev txhawb nqa yooj yim, laminated roj hmab bearings yuav tsum raug xaiv; rau loj-span thiab hnyav- load beam, lauj kaub bearings los yog spherical bearings yuav tsum tau siv.
2. Kev xaiv raws li kev xaav thiab kev sib hloov
Xam cov kab rov tav hloov thiab tig amplitude tshwm sim los ntawm kub deformation, pob zeb creep, thiab braking rog:
- Rau kev hloov me me thiab kev sib hloov me me → laminated roj hmab bearings
- Rau kev xaav loj thiab kev sib hloov loj → zawv zawg lauj kaub bearings
- Rau ntau-kev taw qhia kev sib hloov → spherical bearings
Hauv cheeb tsam seismic, ntxiv seismic displacement yuav tsum tau xav txog, thiab seismic cais bearings yuav tsum raug xaiv.
3. Kev xaiv raws li ib puag ncig thiab hom choj
- Hauv cov cheeb tsam txias heev, txias- cov khoom siv roj hmab tiv taus yuav tsum tau siv.
- Nyob rau hauv ntug dej hiav txwv thiab corrosive ib puag ncig, stainless hlau thiab anti-corrosion coated bearings yuav tsum tau siv.
- Rau siab - kev tsheb ciav hlau ceev, siab - cov kabmob kheej kheej yuav tsum raug xaiv.
- Rau cov kab hluav taws xob- nyob txuas hniav thiab koov choj, universal spherical hinges yuav tsum raug xaiv.
- Xyuas kom cov bearing yog haum rau qhov chaw ib puag ncig thiab choj yam ntxwv hom.
Txheej Txheem Txhim Kho Cov Txheej Txheem rau Choj Bearings - Kev Tswj Xyuas nruj tshaj txhua kauj ruam
1. Kev npaj: Kev kho substrate thiab tshuaj xyuas
Qhov saum npoo ntawm lub pier yuav tsum tiaj tus, huv si, thiab tsis muaj kab nrib pleb, nrog kev nce siab tswj tsis pub dhau ± 1 hli. Lub embedded steel phaj yuav tsum yog theem, tsis muaj xeb thiab khib nyiab. Tshawb xyuas cov qauv bearing, specifications, thiab daim ntawv pov thawj; tshawb xyuas qhov kev puas tsuaj, khawb ntawm zawv zawg daim hlau, thiab cov ntsaws ruaj ruaj tsis zoo.
2. Qhov tseeb qhov chaw: Lifting thiab Alignment
Siv cov cuab yeej nqa tshwj xeeb kom tsis txhob cuam tshuam thiab tig. Muab cov kabmob nruj me ntsis raws li kev tsim qauv: cov kabmob ruaj khov yuav tsum yog qhov nruab nrab zoo kawg nkaus; zawv zawg bearings yuav tsum muaj preset offset (kom haum rau qhov kub thiab txias txav). Xyuas kom cov bearing center dlhos nrog lub beam thiab pier center kom tsis txhob eccentric loading.
3. Kho thiab kho: Tightening thiab tshuaj xyuas
Kev sib txuas ntawm cov kabmob, nqaj, thiab pier yuav tsum muaj kev ruaj ntseg. Vuam yuav tsum tau ua yam tsis muaj kev puas tsuaj rau cov khoom siv roj hmab. Thaum txo cov nqaj, siv lub siab maj mam thiab sib npaug kom ntseeg tau tias muaj kev sib cuag tag nrho, tsis txhob poob ntawm kev sib cuag, thiab tsis muaj qhov sib npaug. Tom qab kev teeb tsa, tshawb xyuas zawv zawg yooj yim thiab kev ywj pheej ntawm kev sib hloov, ntxuav lub xaib, thiab siv los tiv thaiv -corrosion sealing.
4. Kev tiv thaiv khoom tiav: Kev tiv thaiv kev puas tsuaj
Tam sim ntawd tom qab kev teeb tsa, npog nrog cov plua plav pov thawj thiab cov yeeb yaj kiab tiv thaiv dej kom tsis txhob muaj kev sib kis lossis kev puas tsuaj los ntawm pob zeb los yog vuam. Kev tsim kho tom ntej yuav tsum tsis txhob cuam tshuam los yog hnyav hnyav ntawm cov kabmob.
Installation Taboos:
Kev quab yuam cov kabmob mus rau hauv txoj haujlwm, txhim kho dhau qhov tso cai eccentricity, lossis tshem tawm cov txheej txheem tiv thaiv kev sib tsoo yog txwv nruj. Ib qho ntawm cov no yuav ncaj qha mus rau qhov tsis ua haujlwm ntxov ntxov.