Ua ib lub tuam txhab tsim khoom tshwj xeeb hauv kev tsim khoomcov kabmob thaiv hauv ncoo, peb ib txwm suav tias qhov zoo ntawm cov khoom yog txoj sia ntawm peb lub tuam txhab. Tsis ntev los no, peb lub tuam txhab tau tshaj tawm tias lawv tau ua tiav kev txhim kho tag nrho ntawm lub kaw lus tshuaj xyuas, tsim kom muaj "txheej txheem tag nrho, ntau qhov ntev, taug qab tau" los ntawm cov khoom siv raw nkag mus rau cov khoom tiav. Lub hom phiaj no yog xa cov khoom siv bearing zoo dua, txhim khu kev qha dua thiab ruaj khov rau cov neeg siv khoom thoob ntiaj teb nrog cov qauv tshuaj xyuas nruj dua thiab cov txheej txheem tshuaj xyuas tiav dua.
Cov kabmob thaiv hauv ncoo siv dav hauv cov tshuab ua liaj ua teb, cov khoom siv thauj khoom, cov tshuab khawb av, cov khoom siv cua, thiab lwm yam. Lawv qhov kev ua tau zoo cuam tshuam ncaj qha rau kev ruaj khov thiab lub neej ntawm cov khoom siv. Txhawm rau kom ua tau raws li cov kev cai nruj ntawm ntau yam kev ua haujlwm sib txawv, peb lub tuam txhab ua raws li cov qauv kev lag luam xws li GB / T 27555-2011 "Rolling Bearings - Bearing Caps nrog Sab Nraud Spherical Surfaces" thiab JB / T 8875-2001, thiab siv kev tswj hwm zoo tag nrho rau txhua pawg ntawm cov kabmob. Cov ntsiab lus tseem ceeb ntawm qhov kev hloov kho tshiab no yog raws li nram no:
1. Kev tshuaj xyuas cov khoom siv raw - Tswj qhov zoo los ntawm qhov chaw
Cov khoom siv raw zoo yog lub hauv paus ntawm cov bearings zoo. Peb ua cov kev tshuaj xyuas cov khoom siv nruj ntawm txhua pawg ntawm cov hlau thiab cov castings, siv Thermo Scientific nyeem ntawv spectrometers los tshuaj xyuas cov tshuaj lom neeg ntawm cov plhaub bearing thiab cov ntsiab lus dov (nrog rau qhov tseeb ntawm kev tshuaj xyuas cov ntsiab lus txog li 0.001%). Peb xyuas kom meej tias cov khoom siv sib xyaw ua raws li cov qauv. Tib lub sijhawm, los ntawm kev sim qhov nyuaj, peb tswj qhov gradient ntawm qhov chaw Rockwell hardness (HRC 58-62) thiab qhov nyuaj ntawm lub hauv paus (HRC 25-35) kom ntseeg tau tias muaj kev tiv thaiv zoo heev thiab kev tawv. Cov kaus mom casting raug tshuaj xyuas ib qho los ntawm ib qho rau qhov tsis zoo ntawm qhov chaw xws li kab nrib pleb, qhov hws, thiab qhov ntswg.
2. Qhov loj thiab cov duab raug ntawm cov khoom - Nrhiav kev ua tau zoo tshaj plaws
Qhov tseeb ntawm cov kabmob hau nrog cov nplaim sab nraud kheej kheej ncaj qha txiav txim siab lawv qhov zoo sib dhos thiab kev ua haujlwm. Thaum lub sijhawm ua cov khoom, peb siv Mitutoyo peb-coordinate ntsuas cov cuab yeej (nrog qhov tseeb ntawm 1.5 μm) los sau thiab sim ntau cov ntaub ntawv rau sab hauv txoj kab uas hla, sab nraud txoj kab uas hla, dav, thiab lub rooj zaum qhov kam rau ntawm cov kabmob. Tib lub sijhawm, peb siv cov ntsuas puag ncig thiab cov ntsuas profile los tshuaj xyuas qhov puag ncig, cylindricality, thiab cov duab kheej kheej yuam kev ntawm sab hauv thiab sab nraud ntawm cov kabmob. Qhov txwv ntawm qhov tseem ceeb xws li qhov siab nruab nrab ntawm qhov chaw kheej kheej raug tswj hwm nruj me ntsis hauv qhov ntau thiab tsawg tus qauv. Rau qhov roughness ntawm qhov chaw, peb siv Keyence peb-seem nto profilometers kom ntseeg tau tias qhov roughness Ra ≤ 0.2 μm.
3. Kev tshem tawm radial thiab kev tshuaj xyuas qhov tseeb ntawm kev sib hloov - Xyuas kom ua haujlwm du
Qhov kev tshem tawm radial thiab qhov tseeb ntawm kev sib hloov yog cov cim qhia tseem ceeb rau kev ntsuas kev ua tau zoo ntawm cov bearings. Peb siv txoj kev sib cuag peb-taw tes los ntsuas qhov kev tshem tawm radial sab hauv ntawm cov bearings kom ntseeg tau tias nws raug tswj hwm ruaj khov hauv qhov ntau ntawm 0.05-0.15 hli, raws li ISO5753: 2009 cov kev cai. Rau kev sim qhov tseeb ntawm kev sib hloov, peb siv laser interferometers los ntes axial runout (≤ 0.03 hli) thiab radial runout (≤ 0.05 hli), kom ntseeg tau tias qhov du thiab raug ntawm cov bearings thaum lub sijhawm ua haujlwm ceev.
4. Kev hloov pauv yooj yim thiab kev tshuaj xyuas kev ua haujlwm sealing - Ua piv txwv rau cov xwm txheej ua haujlwm tiag tiag
Kev hloov pauv ntawm kev sib hloov ncaj qha cuam tshuam rau kev ua haujlwm zoo ntawm cov khoom siv. Tom qab txhua pawg ntawm cov bearings tau sib sau ua ke, nws dhau los ntawm kev sim tig tes thiab kev ntsuas ntau nrog lub tshuab ntsuas torque los xyuas seb qhov kev sib hloov puas du, tsis muaj suab lo lossis tsis zoo. Rau kev ua haujlwm sealing, peb siv lub rooj sib tw kuaj sealing los xyuas qhov IP65 tiv thaiv qib ntawm cov bearings, ua piv txwv cov hmoov av thiab dej pos huab rau kev ua haujlwm tas mus li rau 30 feeb, thiab ntsuas qhov tsis kam ntawm cov hmoov av thiab dej ntawm cov nplhaib sealing thiab cov roj nplua nyeem kom ntseeg tau tias cov bearings muaj kev ntseeg siab hauv kev ua haujlwm hnyav.
5. Kev tshuaj xyuas kev co thiab suab nrov - Kev ntsuam xyuas tag nrho ntawm kev ua tau zoo dynamic
Kev co thiab suab nrov yog cov cuab yeej tseem ceeb rau kev soj ntsuam kev noj qab haus huv ntawm cov bearings. Peb tau nruab nrog Bruel & Kjaer vibration analysis system (nrog rau qhov zaus ntawm 5Hz - 20kHz) thiab Schaeffler FAG bearing analyzer los sau thiab tshuaj xyuas cov vibration spectra ntawm txhua pawg ntawm cov bearings tiav. Los ntawm kev sib piv cov kev txwv spectral ntawm cov qauv thoob ntiaj teb xws li ISO 15242, peb tuaj yeem txheeb xyuas qhov tseeb ntawm cov qhov tsis zoo sab hauv xws li kev puas tsuaj ntawm txoj kev sib tw, kev hnav tsis sib xws ntawm cov pob, lossis cov qhov tsis zoo ntawm lub tawb. Cov bearings zoo ib txwm tswj cov kev co thiab suab nrov qis thaum lub sijhawm ua haujlwm.
Rau. Kev Ntsuas Kev Thauj Khoom Dynamic thiab Kev Ruaj Ntseg - Kev Txheeb Xyuas Lub Peev Xwm Nqa Tau
Yuav kom paub tseeb tias cov bearings muaj peev xwm ua haujlwm tau zoo thiab siv tau ntev npaum li cas, peb siv lub tshuab Instron hydraulic servo fatigue testing machine (nrog lub zog siab tshaj plaws ntawm 250kN) los ua qhov kev sim dynamic load. Peb tau xyuas kom meej tias cov bearings ua haujlwm tau zoo hauv qab cov axial loads ntawm ≥ 1.5 npaug ntawm tus nqi ntsuas thiab xyuas kom meej tias qhov kub nce thaum lub sijhawm ua haujlwm tas mus li rau 200 teev tsis tshaj 45 ℃. Tib lub sijhawm, peb tau xam lub neej ntsuas raws li ISO 281: 2007 tus qauv kom ntseeg tau tias lub neej L10 yog ≥ 10,000 teev.
VII. Kev Tshuaj Xyuas Qhov Muag thiab Kev Tshuaj Xyuas Lub Hoobkas Zaum Kawg - Qhov Chaw Tshawb Xyuas Zoo Zaum Kawg
Ua ntej lub ntim khoom tiav, txhua pawg ntawm cov bearings yuav tsum tau kuaj xyuas nruj heev siv ob qho kev soj ntsuam pom thiab lub tshuab tsom iav kom paub tseeb tias muaj qhov tsis zoo xws li tawg, xeb, khawb, lossis abrasions ntawm qhov chaw. Qhov zoo ntawm cov xim pleev xim thiab kev kho qhov chaw ntawm cov kabmob kuj raug tshuaj xyuas kom ntseeg tau tias cov cim thiab cov ntaub ntawv ntim khoom meej thiab tiav. Tus nqi sib nqus seem raug kuaj xyuas kom ua raws li cov cai ntawm JB / T 6641. Tag nrho cov ntaub ntawv xeem raug kaw cia rau lub sijhawm tiag tiag thiab nkag mus rau hauv lub kaw lus kom ua tiav "ib qho lej taug qab" - txhua pawg ntawm cov bearings tsim tawm tuaj yeem taug qab mus rau cov khoom siv raw, cov txheej txheem ua tiav, thiab cov ntaub ntawv xeem.
Kev Cog Lus ntawm Cov Neeg Siv Khoom
Qhov kev txhim kho tag nrho ntawm lub kaw lus kuaj yog peb txoj kev cog lus ruaj khov rau lub tswv yim "zoo ua ntej". Txij li thaum nkag mus rau cov khoom siv raw mus rau qhov ua tiav ntawm cov khoom tiav, txhua txoj kev, txhua qhov kev ntsuas, thiab txhua qhov kev xeem yog raws li cov qauv thoob ntiaj teb thiab cov neeg siv khoom xav tau. Peb nkag siab tias qhov peb xa mus rau cov neeg siv khoom tsis yog tsuas yog ib pawg ntawm cov bearings, tab sis yog kev cog lus rau kev ua haujlwm ruaj khov ntawm cov khoom siv.
Yav tom ntej, peb yuav txuas ntxiv txhim kho cov txheej txheem sim thiab qhia cov khoom siv sim siab heev los muab cov kev pabcuam zoo tshaj plaws rau cov neeg siv khoom thoob ntiaj teb. Txais tos cov neeg siv khoom tshiab thiab cov neeg siv khoom qub tuaj xyuas peb lub Hoobkas kom tau txais kev taw qhia thiab pom peb txoj kev nrhiav kev zoo ua ke!