YDF-10 chekeni valavu pachimake cha excavator chowonjezera silinda

Valavu yanjira imodzi imatanthawuza kuti madziwo amatha kungoyenda molowera m'madzi, koma sing'anga yomwe ili pamtsinje wamadzi sangathe kubwereranso, yomwe imadziwika kuti valavu yanjira imodzi. Vavu yoyang'ana imatchedwanso cheki valavu kapena valavu. Amagwiritsidwa ntchito mu ma hydraulic system kuti ateteze kutuluka kwamafuta m'malo, kapena kugwiritsidwa ntchito pamakina a pneumatic kuti apewe kubweza kwa mpweya woponderezedwa. Pali mitundu iwiri ya ma valavu owunika: mtundu wowongoka komanso wolowera kumanja. Vavu yoyang'ana molunjika imayikidwa papaipi yokhala ndi ulusi wolumikizira. Vavu yolowera kumanja yanjira imodzi ili ndi mitundu itatu: kulumikizana kwa ulusi, kulumikiza mbale ndi kulumikizana kwa flange.

Vavu yoyang'ana imatchedwanso cheki valavu kapena valavu. Amagwiritsidwa ntchito mu ma hydraulic system kuti ateteze kutuluka kwamafuta m'malo, kapena kugwiritsidwa ntchito pamakina a pneumatic kuti apewe kubweza kwa mpweya woponderezedwa.

Pali mitundu iwiri ya ma cheki ma valve: mtundu wowongoka ndi wolowera kumanja. Vavu yoyang'ana molunjika imayikidwa papaipi yokhala ndi ulusi wolumikizira. Vavu yolowera kumanja yanjira imodzi ili ndi mitundu itatu: kulumikizana kwa ulusi, kulumikiza mbale ndi kulumikizana kwa flange. Kuwongolera kwa hydraulic valve yanjira imodzi, yomwe imadziwikanso kuti valavu yotsekera kapena valavu yosungira, ndiyofanana ndi valavu yanjira imodzi kuti mafuta asasunthike. Komabe, pamene mafuta akuyenda amayenera kuyenda mozungulira mu hydraulic circuit, kuthamanga kwa mafuta kungagwiritsidwe ntchito kutsegula valve ya njira imodzi, kuti mafuta aziyenda mbali zonse ziwiri. Ma hydraulic control valve yanjira imodzi amatengera conical valve core, motero imakhala ndi ntchito yabwino yosindikiza. Pamene dera lamafuta likufunika kuti litsekedwe, valavu iyi ingagwiritsidwe ntchito ngati njira imodzi yotsekera dera la mafuta kuti likhalebe mphamvu. Pali njira ziwiri zowongolera kutayikira kwamafuta: kutulutsa kwamkati ndi kutuluka kwakunja. Mtundu wotuluka wamkati ukhoza kugwiritsidwa ntchito pozungulira mafuta popanda kukakamiza kumbuyo komwe kumatuluka mafuta; Kupanda kutero, mtundu wotayikira umafunika kuti muchepetse kuthamanga kwamafuta.