Xaiv sab hauv clearance los yog preload
Kev khiav hauj lwm clearance los yog preload nyob rau hauv ib tug bearing influences, ntawm lwm yam, kev sib txhuam, load cheeb tsam loj thiab qaug zog lub neej ntawm ib tug bearing. Daim duab 1 qhia txog kev sib raug zoo ntawm cov kev txwv no. Daim duab qhia dav dav thiab ua raws li cov kabmob dov hauv qab radial load.
Rau cov kev siv dav dav, qhov kev khiav hauj lwm clearance yuav tsum nyob rau hauv lub cheeb tsam pom zoo qhia nyob rau hauv daim duab 1.
Xaiv thawj qhov kev tshem tawm sab hauv thiab Xaiv qhov preload piav qhia txog cov xwm txheej cuam tshuam uas yuav tsum tau txiav txim siab thiab muab cov txheej txheem uas koj tuaj yeem suav thawj qhov kev tshem tawm sab hauv xav tau kom ua tiav qib ntawm kev tshem tawm / preload xav tau los ntawm koj daim ntawv thov.
daim duab 1 - Kev khiav hauj lwm clearance los yog preload piv rau cov txheej txheem tseem ceeb ua hauj lwm
Bearing internal clearance (daim duab 1) yog txhais raws li tag nrho cov kev ncua deb ntawm uas ib tug bearing nplhaib yuav txav mus rau lwm yam nyob rau hauv lub radial kev taw qhia (radial internal clearance) los yog nyob rau hauv lub axial kev taw qhia (axial internal clearance).
Initial internal clearance yog lub internal clearance nyob rau hauv lub bearing ua ntej mounting.
Mounted clearance yog qhov kev tshem tawm sab hauv hauv cov kabmob tom qab mounting tab sis ua ntej ua haujlwm.
Kev khiav hauj lwm clearance yog lub internal clearance nyob rau hauv lub bearing thaum nws nyob rau hauv lub lag luam thiab tau mus txog ib tug ruaj khov kub.
Hauv ntau daim ntawv thov, thawj qhov kev tshem tawm sab hauv hauv cov kabmob yog ntau dua li nws qhov kev khiav haujlwm tshem tawm. Qhov no yog vim muaj kev cuam tshuam ntawm:
cuam tshuam haum nrog lub ncej thiab / lossis vaj tse
thermal expansion ntawm cov kabmob rings thiab cov khoom sib txuas
Bearings yuav tsum muaj qhov tsim nyog tshem tawm kom ua haujlwm txaus siab (Qhov tseem ceeb ntawm kev xaiv qhov tseeb clearance / preload).
Feem ntau, bearings yuav tsum muaj qee qhov kev tshem tawm (Xaiv thawj qhov kev tshem tawm sab hauv). Txawm li cas los xij, qee zaum, lawv yuav xav tau preload, piv txwv li kev tshem tawm tsis zoo (Xaiv preload).
Raws li txoj cai dav dav:
Pob bearings yuav tsum muaj kev khiav hauj lwm clearance uas zoo li xoom.
Cylindrical, koob, kheej kheej thiab CARB toroidal cov menyuam bearings feem ntau xav tau yam tsawg kawg nkaus kev ua haujlwm me me.
Tapered roller thiab angular contact pob bearings yuav tsum muaj kev ua haujlwm me me, tshwj tsis yog hauv cov ntawv thov uas yuav tsum muaj qhov siab nruj lossis kev tswj xyuas qhov chaw, nyob rau hauv rooj plaub no lawv tuaj yeem txuas nrog qib ntawm preload.
