Puas Bearings Yuav Tsum Cov Roj Roj lossis Roj Roj? Thiab Dab tsi yog Tus Nqi Zoo? (piv txwv li, "1/3 lossis 2/3 ntawm Cov Kabmob Sab Hauv")
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1. Kev xaiv ntawm Lubricating Roj thiab Roj rau Bearings
Kev xaiv cov roj lubricating los yog roj yog nyob ntawm qhov kev ua haujlwm ntawm cov kabmob, xws li ceev, kub, load, thiab ib puag ncig yam. Qhov sib txawv tseem ceeb thiab daim ntawv thov scenarios yog raws li nram no:
| Qhov xwm txheej | Lubricating Roj | Lubricating Roj |
|---|---|---|
| Kev khiav hauj lwm ceev | Haum rau siab -cov kabmob ceev (piv txwv li, spindle bearings hauv cov cuab yeej siv tshuab). Roj muaj qis viscosity tsis kam, txo cov hluav taws kub ntawm kev kub ceev. | Zoo dua rau qis - mus rau - nruab nrab ceev bearings (xws li, conveyor roller bearings). Roj cov tuab tuab yuav ua rau muaj kev sib txhuam ntau dhau thiab kub dhau ntawm kev kub ceev. |
| Ua haujlwm kub | Dav qhov kub thiab txias; tuaj yeem tsim rau qhov kub siab / qis qis (piv txwv li, cov roj hluavtaws rau -50℃txog 300 degree). | Qhov ntsuas kub qis dua; Cov pa roj tuaj yeem ua rau mos (thaum lub sijhawm siab) lossis tawv (thaum qis), poob lubrication. Cov roj hluavtaws tshwj xeeb (piv txwv li, silicone-raws li) txuas ntxiv qhov ntau tab sis raug nqi. |
| Load Capacity | Zoo dua rau siab -load lossis poob siab-load scenarios (xws li, hnyav machinery bearings). Roj tsim ib daim ntawv ruaj khov lubricating zaj duab xis kom faib cov khoom sib npaug. | Haum rau lub teeb - mus rau - nruab nrab loads. Roj lub thickener (xws li, lithium xab npum) tuaj yeem txhim khu kev tiv thaiv kev tiv thaiv tab sis yuav ua tsis tau raws li qhov siab dhau. |
| Sealing & Contamination Resistance | Tsis zoo sealing; yuav tsum tau muab cov ntsaws ruaj ruaj ntxiv (piv txwv li, roj foob) kom tiv thaiv kom tsis txhob yaig. Yooj yim rau kev sib kis yog tias cov ntsaws ruaj ruaj tsis ua haujlwm. | Zoo sealing; lub semi- cov qauv khoom ua raws li cov kabmob, thaiv cov plua plav, dej, thiab cov khib nyiab. Zoo tagnrho rau qhov chaw qias neeg lossis qhov chaw ntub dej (xws li, cov tshuab ua liaj ua teb, cov khoom siv tsim kho). |
| Kev tu ntau zaus | Siab dua; xav tau cov roj hloov tsis tu ncua los yog sab saum toj -ups (vim yog to / oxidation). | qis; roj muaj lub neej ua haujlwm ntev dua (feem ntau yog 6-12 lub hlis nyob rau hauv cov xwm txheej ib txwm muaj) thiab yuav tsum tau siv roj tsawg dua -lubrication. |
2. Lubrication npaum li cas: Ntxiv npaum li cas?
Tus nqi ntawm cov roj nplua nyeem cuam tshuam ncaj qha rau cov kabmob lub neej thiab kev ua haujlwm- tsawg dhau ua rau lubrication tsis txaus (hnav), thaum ntau dhau ua rau overheating (zog pov tseg lossis foob puas). Cov lus qhia dav dav yog ua raws li qhov chaw sab hauv ntawm cov kabmob (qhov sib txawv ntawm lub nplhaib sab hauv, lub nplhaib sab nraud, cov khoom dov, thiab lub tawb):
Rau feem ntau radial bearings (xws li, sib sib zog nqus groove pob bearings, cylindrical roller bearings): Sau 1/3 txog 1/2 ntawm qhov chaw sab hauv. Qhov no sib npaug lubrication npog thiab kub dissipation. Yog tias cov kabmob ua haujlwm hauv qhov chaw muaj plua plav lossis hnyav hnyav, nce mus rau 1/2 (los txhim kho kev sib khi); yog tias nws yog qhov siab -cov kabmob ceev, txo mus rau 1/3 (kom txo qis kev sib txhuam thiab cua sov).
Rau thrust bearings (xws li, thrust pob bearings, thrust roller bearings): Sau 2/3 ntawm qhov chaw sab hauv. Thrust bearings dais axial loads, thiab ib tug ntau dua lubricant npaum li cas kom lub dov cov ntsiab lus (xws li, pob, rollers) tag nrho coated, tiv thaiv cov hlau ncaj qha - mus rau -hlau sib cuag.
Cov ntaub ntawv tshwj xeeb: Bearings nrog cov roj ncig tshuab (xws li, cov tshuab loj loj): Tsis txhob "sau" qhov chaw sab hauv. Hloov chaw, tswj cov roj ntws kom ntseeg tau tias muaj kev sib txuas ua ke, nyias lubricating zaj duab xis ntawm cov kabmob - cov roj ntau dhau yuav ua rau lub zog poob thiab ua rau cov roj foaming.
Ntsiab Lus
Txawm hais tias cov roj los yog roj, ib txwm siv cov roj nplua nyeem sib xyaw nrog cov khoom siv bearings (xws li, zam cov roj corrosive rau stainless hlau bearings) thiab ua raws li cov chaw tsim khoom cov lus pom zoo (xws li, qee qhov precision bearings yuav tsum muaj cov roj hluavtaws tshwj xeeb). Tom qab lubrication, khiav cov kabmob ntawm qis ceev rau 5-10 feeb kom faib cov roj nplua nyeem sib npaug.
