Pakupaka mafuta otsegulira ma giya omwe amagwiritsidwa ntchito m'mafakitale osiyanasiyana monga mphero za simenti ndi malasha, ng'anjo zozungulira, kapena komwe kumakhala kovuta kusindikiza, mafuta amadzimadzi nthawi zambiri amagwiritsidwa ntchito m'malo mwamafuta amadzimadzi. Popanga zida zopangira girth mafuta amagwiritsidwa ntchito ndi splash kapena makina opaka mafuta. Kusankhidwa kwa mafuta oterowo kumakhudza kuyika nthawi ya moyo ndi mphamvu yonyamula katundu wa magiya, komanso khalidwe la kuvala.
Kafukufuku wachitika poyerekezera mafuta amadzimadzi ndi mitundu yosiyanasiyana yamafuta a semi-fluid (NLGI00), mosiyanasiyana malinga ndi makulidwe amafuta oyambira, mtundu wa thickener komanso kuwonjezera pazowonjezera zamadzimadzi komanso zolimba. Kuyesa kumayendera kutsimikiza kwa magawo osiyanasiyana kunachitika pazitsulo zoyeserera za gear zobwerera kumbuyo; kukhazikitsidwa kwadongosolo la test rig ikuwonetsedwa pansipa.
Zotsatira zoyesa zikuwonetsa kuti mafuta amagetsi a NLGI 00 osasinthasintha amawonetsa pafupifupi nthawi yofanana ya moyo monga anzawo amafuta oyambira. Kuphatikiza apo, ma kinematic viscosity yamafuta oyambira amawonetsa kukhudzidwa kwakukulu pakuyika nthawi yonse yamafuta amtundu wa NLGI 00. Kuwonjezeredwa kwa graphite yapadera yopangira mafuta oterowo kumapangitsa kuchepa kwa moyo wa maenje komanso kuvala kwambiri. Zotsatira za mayesowa zikuwonetsanso kuti kuchuluka kwamafuta omwe amanyamula mafutawa kumagwirizana ndi kukhuthala kwa kinematic kwa mafuta oyambira. Pogwiritsa ntchito kukhuthala kwamafuta apamwamba, moyo wautali wautali komanso kunyamula katundu wambiri kunakwaniritsidwa. Pamafuta amafuta a semi-fluid, kuwerengera kuchuluka kwa kunyamula katundu molingana ndi ISO 6336 pogwiritsa ntchito viscosity yamafuta oyambira kumalumikizana bwino ndi zotsatira zoyeserera. Mayeso owunikira machitidwe amavalidwe amafuta osiyanasiyana a semi-fluid adapangidwa pamayeso ovala A/2.8/50 pamaziko a ISO 14635-3 ndi ISO 14635-1. Magulu anayi ovala osiyanasiyana adafotokozedwa kuti ayesetse kupirira kwa maola 100 ndi gulu lomwe linapangidwa molingana ndi kuchuluka kwa kuvala pa pinion ndi gudumu. Nthawi zambiri, pafupifupi mafuta onse ofufuzidwa, kupatula mafuta omwe ali ndi mafuta olimba, amawonetsa kutsika kochepa m'zigawo zonse zoyesedwa. Kuwongolera kwa kukhuthala kwa mafuta oyambira kumatha kuwoneka chifukwa mafuta okhala ndi ma viscosity apamwamba amafuta amawonetsa kutsika kochepa. Chikoka cha kuchuluka kwa thickener ndi mtundu wa thickener ndi pafupifupi chochepa, koma mafuta okhala ndi aluminiyamu sopo wophatikizika amawonetsa kuvala kokwera pang'ono poyerekeza ndi gawo lake la lithiamu sopo wokhuthala. Kusiyanitsa kwakukulu kumawonekera pakukhudzidwa kwa kuchuluka ndi mtundu wamafuta olimba. Mafuta okhala ndi ma graphite opangidwa amawonetsa kuchuluka kwa mavalidwe apamwamba - ogwirizana ndi kuchuluka kwa graphite mumafuta - poyerekeza ndi mafuta omwewo opanda mafuta olimba. Pamapeto pa kuyesa kwa sitepe mafuta omwe ali ndi 4.2% graphite amasonyeza katatu-kuchuluka kovala kuposa mafuta oyambira. Ndipo ndi kuchuluka kwa graphite - 11.1% -ndalama yovala idakwera kufika pamlingo wa kasanu ndi katatu poyerekeza ndi mafuta opanda zolimba. Mchitidwe umenewu unatsimikiziridwanso mu kuyesa kwa chipiriro; ie - kwambiri graphite, ndi apamwamba kuvala. Kumbali inayi, mafuta omwe ali ndi 4.2% a molybdenum disulphide amawonetsa kuvala kofananira. Pamene spur gearset iyamba kusinthasintha, mafuta omwe ali pafupi ndi gearset amatayidwa nthawi yomweyo ndipo sabwereranso ku gearset chifukwa cha kusowa kwa makina okwanira obwezeretsanso. Mpata umapangidwa pakati pa magiya ozungulira ndi sump yamafuta. Palibe mafuta atsopano omwe amachokera ku sump kupita ku gearset chifukwa cha kusasinthasintha kwake. Kuperewera kwa mafuta ndi kuziziritsa kumatha kuwonedwa komwe kungayambitse kutentha kwakukulu kwa magiya ndipo, pomaliza, kuphulika. Mafuta ochepa okha ndi omwe amatenga nawo mbali pamafuta. Kuwongolera kumachitika makamaka pamilingo ya 40 ndi 50% yodzaza ndi mafuta olimba mpaka mafuta oyambira pambuyo poyesa masitepe komanso kuvala kokwera pang'ono pambuyo pa mayeso opirira.
M'malo ena, pakupaka mafuta ang'onoang'ono, otsekeredwa amagetsi omwe amagwiritsidwa ntchito pazida zamagetsi kapena zamankhwala, komanso kudzoza ma gearbox ang'onoang'ono m'malo ovuta kusindikiza, mafuta olimba amakondedwa, nthawi zambiri a NLGI 1 kapena 2 kusasinthasintha. . Kusankhidwa kwa mtundu wamafuta ndi mulingo wodzaza kumakhudza magwiridwe antchito, kunyamula katundu komanso kusamutsa kutentha mu bokosi la gear.
Nthawi yotumiza: Aug-10-2021