06040-06024BEARING
Li-bulldozer bearings ke likarolo tsa mantlha tsa mochini tse sebelisetsoang ho ts'ehetsa likarolo tse potolohang, ho fokotsa likhohlano le ho tsamaisa meroalo. Hangata li na le selikalikoe se ka hare (ho nyalana le shaft), selikalikoe sa ka ntle (ho nyalana le ntlo), likaroloana tse pota-potileng (libolo tsa tšepe, li-roller, joalo-joalo), le cage (ho arola likaroloana). Thepa ea eona ke tšepe e nang le carbon chromium e phahameng haholo (joalo ka GCr15), e nang le boima bo phahameng (ho thatafala ha karolo ea rolling e fihla ho HRC60-65), ho hanyetsa ho roala, le ho hanyetsa mokhathala ka mor'a phekolo ea mocheso. E ka ikamahanya le maemo a thata a ho sebetsa a li-bulldozers tse kang mojaro o boima, ho sisinyeha, lerōle, joalo-joalo Ho ea ka mofuta oa ho ferekana, libere tsa bulldozer li ka aroloa ka li-bearings tse ntseng li lla (tse fokotsang likhohlano ka likarolo tse pota-potileng 'me li sebelisoa ka ho fetisisa) le li-sliding bearings (tse tšehetsoeng ke ho ferekana ha li-sliding, tse kang ho ferekana). Har'a tsona, li-rolling bearings li fetohile likarolo tsa bohlokoa tse potolohang tsa li-bulldozer ka lebaka la coefficient ea tsona e tlaase ea likhohlano le ho ikamahanya le maemo ka lebelo le matla.1. Ts'ehetso ea likarolo tse potolohang Fana ka boemo ba radial le axial bakeng sa likarolo tsa shaft (tse kang li-drive shafts, li-gear shafts) ho netefatsa ts'ebetso e tsitsitseng ea likarolo tse potolohang (li-gears, sprockets, joalo-joalo) ka litsela tse reriloeng esale pele, ho qoba ho thothomela kapa ho thulana ho bakoang ke offset. Fokotsa tahlehelo ea likhohlano2. Fetolela khohlano e thellang ea likarolo tse bilikang hore e be khohlano e thellang (kapa ho thella ho tlase) ka lintho tse thellang (kapa libaka tse thellang), fokotsa tahlehelo ea matla nakong ea phetisetso ea matla, le ho ntlafatsa tšebetso ea phetiso.Ho jara le ho tsamaisa meroalo3. Jara mojaro oa radial (joalo ka boima ba "shaft", "radial force of gear meshing" le axial load (joalo ka matla a axial a hlahisoang ke kharafu ea bulldozer) nakong ea ts'ebetso ea bulldozer, 'me u fetisetse mojaro ho khetla kapa foreimi ho qoba ho fetoha ha 'mele oa shaft ka matla.
Maemo a tloaelehileng a ts'ebeliso
Ha li-bulldozer li sebetsa (joalo ka ho sututsa mobu o thata kapa matsoapo), li-bearings li hloka ho mamella meroalo e meholo (joalo ka mojaro oa hang-hang oa mabili a koloi a fihlang ho lithane tse fetang 10), kahoo hoa hlokahala ho khetha li-bearings tse nang le li-coefficients tse phahameng (joalo ka li-bearings tsa tapered roller le ho itšehla thajana), le ho matlafatsa thepa ea rolara.
2. Khahlanong le tšilafalo le ho tiisa
Tikoloho ea ts'ebetso e lerōle ebile e le seretse, 'me li-bearings li hloka ho sebelisoa hammoho le likarolo tsa ho tiisa (joalo ka litiiso tsa oli le likhurumetso tsa lerole):
Likarolo tse pepesitsoeng (tse kang li-bearings tsa mabili) li hloka litiiso tse peli tsa oli ea molomo le likoahelo tsa lerōle ho thibela seretse le lehlabathe ho kena tseleng ea peiso (litšila li ka baka "ho roala" ha li-bearings, ho fokotsa nako ea bophelo ba bona ka ho feta 50%);
Li-bearings ka har'a lebokose la gear li itšetlehile ka ho tlotsa oli ea gear le ho tiisoa, 'me hoa hlokahala ho netefatsa hore lebokose la gear ha le lutle.
3. Lubrication le ho senya mocheso
Li-bearings tse potolohang ka lebelo le phahameng (tse kang li-gearbox spindle bearings) li hloka ho tlotsoa ka matla ka oli ea gear (e kentsoeng ka likanale tsa oli) ho tlosa mocheso o ferekaneng (ho qoba ho hloleha ha mafura ho bakoang ke mocheso o phahameng);
Li-bearings tsa lebelo le tlase-tse kang bucket pin roller bearings) li hloka ho tlotsoa ka mafura khafetsa (hang ka mor'a lihora tse ling le tse ling tse 200) ho etsa filimi ea oli le ho fokotsa khohlano.
·Bothata: Ho hloleha hoa pele ha mabili a tšehetsang mabili a bakoang ke ho ama mafika. Tharollo:
Ho amohela mela e meraro ea lirolara tse tapered (ka keketseho ea 50% ea moroalo{1}mokhoa oa ho jara)
Ntlafatso ea Roller Logarithmic Curve (Tlhaloso ea Phano ea Khatello ea Maikutlo)
Upgrade lubricating grease to fully synthetic lithium based grease (drip point>likhato tse 260)
2. Tikoloho ea kaho ea mekhoabo:
·Phephetso: Ho hloleha ho tiisa ho bakiloeng ke ho kenella ha metsi/sediment · Moqapi oa boqapi:
Setiiso sa oli ea molomo habeli + tiiso ea mokelikeli oa makenete (tekanyo e sa keneleng metsi IP68)
Kenya likanale tsa drainage setulong sa ho beleha (joalo ka moralo oa Caterpillar D6T)
3. Ho sebetsa -libakeng tse phahameng:
·Mahlaba a bohloko: Thempereichara e tlase ea -50 degrees C e etsa hore mafura a tiee. Mokhoa oa ho loantša:
Mafura a tlatsitsoeng pele{0}ka mocheso o tlase bakeng sa libering (e ntse e ka phalla ho -60 degrees C)
Khetha tšepe e nang le boima bo phahameng (Charpy impact energy E kholo ho feta kapa e lekana le 100J)
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