Ukuze kufakwe amafutha okushayela amagiya avulekile asetshenziswa ezimbonini ezihlukene ezifana nezigayo zikasimende namalahle, izithando zomlilo ezijikelezayo, noma lapho izimo zokuvala zinzima, ama-semi-fluid grisi avame ukusetshenziswa esikhundleni samafutha awuketshezi. Ukufaka amagiya okubopha ama-grease asetshenziswa nge-splash noma uhlelo lokuthambisa lwesifutho. Ukukhethwa kwamafutha anjalo kuthonya umgodi wokuphila kanye namandla okuthwala umthwalo wamagiya, kanye nokuziphatha kokugqoka.
Uphenyo lwenziwe kuqhathaniswa uwoyela owuketshezi kanye nokwakheka okuhlukile kwe-semi-fluid (NLGI00) yamafutha, okuhlukayo maqondana ne-base viscosity kawoyela, uhlobo lwe-thickener kanye nokwengezwa kwakho kokubili izithasiselo eziwuketshezi neziqinile. Ukuhlolwa kokuhlolwa kokunqunywa kwamapharamitha ahlukene kwenziwa kumarigi okuhlola amagiya abuyela emuva; ukusethwa kwesikimu serigi yokuhlola kuboniswa ngezansi.
Imiphumela yokuhlolwa ikhombisa ukuthi ama-gear greases we-NLGI 00 consistency abonisa cishe impilo efanayo yokugoba njengozakwabo bawoyela oyisisekelo. Ngaphezu kwalokho, i-kinematic viscosity yamafutha ayisisekelo ikhombisa ithonya elibalulekile ekugobeni impilo yonke yalawo mafutha ebanga le-NLGI 00. Ukwengezwa kwe-graphite ekhethekile yokwenziwa kugrisi yegiya enjalo kuholele ekwehleni kokuphila komgodi kanye nokugqoka okuphezulu. Imiphumela yokuhlola iphinde ibonise ukuthi umthamo wokuthwala umthwalo we-pitting walawa mafutha uhambisana ne-kinematic viscosity yamafutha ayisisekelo. Ngokusebenzisa i-viscosity kawoyela eyisisekelo ephakeme, isikhathi eside sokuphila komgodi kanye nomthamo wokuthwala we-pitting ophakeme wazuzwa. Ngamagrisi egiya eliwuketshezi, ukubalwa komthamo wokuthwala umthwalo we-pitting ngokuya nge-ISO 6336 kusetshenziswa i-viscosity kawoyela oyisisekelo kuhlobana kahle nemiphumela yokuhlolwa okusebenzayo. Ukuhlolwa kokuhlaziya ukuziphatha kokugqokwa kwamagrisi ahlukene egiya eliwuketshezi lwe-semi-fluid kwenziwa ekuhlolweni kokugqokwa kwe-A/2.8/50 ngesisekelo se-ISO 14635-3 ne-ISO 14635-1. Izigaba ezine ezihlukene zokugqoka zachazwa zokuhlolwa kokukhuthazela kwamahora angu-100 kanye nokuhlukaniswa okwenziwe ngokwesamba sokugqoka ku-pinion nesondo. Ngokuvamile, cishe wonke ama-lubricant aphenyiwe, ngaphandle kwamafutha aqukethe izinto zokugcoba eziqinile, abonisa ukuguga okuphansi kuzo zonke izingxenye zokuhlola. Ukusebenza kahle kwe-viscosity kawoyela wesisekelo kungabonakala ngokuthi ama-grease anama-viscosity aphezulu kawoyela abonisa ukuguga okuphansi. Umthelela wokugxiliswa kwe-thickener kanye nohlobo lokujiya ucishe ube yinto engekho, kodwa amafutha anensipho eyinkimbinkimbi ye-aluminium abonisa inani elincanyana kakhulu lokugqokwa uma liqhathaniswa nengxenye yalo egqinsiswe yinsipho ye-lithium. Umehluko obaluleke kakhulu ungabonakala ethonyeni lenani kanye nohlobo lokuthambisa okuqinile. Amafutha aqukethe i-graphite yokwenziwa abonisa izibalo zokuguga eziphakeme kakhulu - ezihambisana nenani le-graphite kugrisi - uma kuqhathaniswa negrisi efanayo engenawo okothambisa okuqinile. Ekupheleni kokuhlolwa kwesinyathelo amafutha aqukethe u-4.2% we-graphite abonisa isamba sokuguga esiphindwe kathathu kune-base grease. Futhi ngenani eliphakeme le-graphite - 11.1% -isamba sokugqoka sikhuphuke safika ezingeni eliphindwe kasishiyagalombili uma kuqhathaniswa namafutha angenawo izinto eziqinile. Lokhu kuthambekela kwaqinisekiswa nasekuhlolweni kokukhuthazela; okungukuthi - i-graphite eyengeziwe, ukugqokwa okuphezulu. Ngakolunye uhlangothi, amafutha aqukethe u-4.2% we-molybdenum disulphide abonisa ukuguga okufanayo. Uma i-spur gearset iqala ukuzungeza, igrisi eseduze ne-gearset iyalahlwa ngokushesha futhi ingabuyeli kulelo giya ngenxa yokungabi bikho komshini owanele wokugcwalisa. Igebe liyakhiwa phakathi kwamagiya azungezayo kanye ne-grease sump. Awekho amafutha amasha aphuma ku-sump aye kugiya ngenxa yokungaguquguquki kwawo okuqinile. Ukuntuleka kokugcotshwa nokupholisa kungabonwa okungaholela ekushiseni okuphezulu kwenqwaba kumagiya futhi, ekugcineni, ku-scuffing. Inani elincane kuphela lamafutha elibamba iqhaza ekugcobeni. Ukushanela kwenzeka ikakhulukazi kumazinga okugcwalisa angu-40 kanye nama-50% kanye ne-stiffer prod kugrisi eyisisekelo ngemva kokuhlolwa kwesinyathelo kanye nokugqokwa okungaphezulu kancane ngemva kokuhlolwa kokukhuthazela.
Ngomongo ohlukile, ukuze kugcotshwe amagiya amancane avalelwe asetshenziswa kumathuluzi kagesi noma kwezokwelapha, kanye nokugcotshwa kwamabhokisi kagiya amancane ezimeni ezinzima zokuvala, kukhethwa amagrisi aqinile, imvamisa yokungaguquguquki kwebanga le-NLGI 1 noma 2. . Ukukhethwa kohlobo lwamafutha kanye nezinga lokugcwalisa kunomthelela ekusebenzeni kahle, umthamo wokuthwala umthwalo nokudlulisa ukushisa ku-gearbox.
Isikhathi sokuthumela: Aug-10-2021