Ngendlela yokuqala ye-linear motion beararing, umugqa wezinti zokhuni wawubekwe ngaphansi komugqa wamapuleti e-skid.Ama-modern linear motion bearings asebenzisa isimiso sokusebenza esifanayo, ngaphandle kokuthi ngezinye izikhathi amabhola asetshenziswa esikhundleni samarola.Ibhere elijikelezayo elilula kunawo wonke umkhono we-shaft, okuyisihlahla nje esifakwe phakathi kwesondo ne-ekseli.Lo mklamo wabe usuthathelwa indawo ama-bearings aginqikayo, asebenzisa ama-cylindrical roller amaningi ukuze athathe indawo ye-bushing yasekuqaleni, futhi isici ngasinye esiginqikayo sasifana nesondo elihlukile.
Isibonelo sakuqala sebhola eliphethe satholwa emkhunjini wasendulo wamaRoma owakhiwa ngo-40 BC eLake Naimi, e-Italy: ibhodi lokhuni eliphethe ibhola lalisetshenziselwa ukusekela ukhakhayi oluzungezayo lwetafula.Kuthiwa uLeonardo da Vinci uchaze ibhola eliphethe cishe i-1500. Phakathi kwezici ezihlukahlukene ezingavuthiwe zama-ball bearings, iphuzu elibaluleke kakhulu ukuthi amabhola azongqubuzana, abangele ukungqubuzana okwengeziwe.Kodwa lokhu kungavinjelwa ngokufaka amabhola emakhejini amancane.Ngekhulu le-17, uGalileo waqala ukuchaza ibhola eliphethe "ibhola lekheji".Ekupheleni kwekhulu le-17, i-British C. wallow yaklama futhi yakha ama-ball bearings, afakwa emotweni yeposi ukuze asetshenziswe ukuhlolwa, futhi i-British P Worth yathola ilungelo lobunikazi lokuthwala ibhola.I-rolling bearing yokuqala enekheji yasungulwa ngumenzi wamawashi u-John Harrison ngo-1760 ukuze enze iwashi le-H3.Ekupheleni kwekhulu le-18, i-HR hertz yaseJalimane yashicilela iphepha mayelana nokucindezeleka kokuthintana kwama-ball bearings.Ngokwesisekelo sezimpumelelo zikaHertz, i-r.I-Stribeck kanye neSweden i-Palmgren nabanye baye benza izivivinyo eziningi, ezibe nomthelela ekuthuthukisweni kwethiyori yokuklama nokubala kokukhathala kokuphila kwama-bearings agingqayo.Ngemva kwalokho, uNP Petrov waseRussia wasebenzisa umthetho kaNewton we-viscosity ukuze abale ukungqubuzana okukhona.Ilungelo lobunikazi lokuqala esiteshini sebhola latholwa nguPhilip Vaughn wasecamson ngo-1794.
Ngo-1883, uFriedrich Fisher uhlongoze umqondo wokusebenzisa imishini yokukhiqiza efanele ukugaya amabhola ensimbi anobukhulu obufanayo kanye nokujikeleza okunembile, okwabeka isisekelo semboni yokuthwala.U-O Reynolds wenze ukuhlaziya kwezibalo kokutholwa kuka-Thor kanye nezibalo ze-Reynolds, okwabeka isisekelo sethiyori ye-hydrodynamic lubrication.
Isikhathi sokuthumela: Sep-01-2022