Excavator PC200-8 excavator wamba njanji kuthamanga thandizo valavu 6754-72-1220

1. The excavator regenerative valve imatha kufulumizitsa liwiro la kugwa ndikuwongolera magwiridwe antchito.

2, valavu yobwezeretsanso ndowa yofukula imaphatikizapo valavu, pulagi yopukutira imakutidwa ndi mbali imodzi ya manja a valve, mutu wa valve umalumikizidwa ndi mbali ina ya valavu, pali mpando wokhazikika mu manja a valve ndi pulagi. , mbali imodzi ya gawo lotanuka imagwirizanitsidwa ndi mpando wokhazikika, mbali imodzi ya valve spool sliding yolumikizidwa ndi manja a valve imagwirizanitsidwa ndi mbali ina ya gawo lotanuka, mapeto ena a valve spool amagwirizanitsidwa ndi mutu wa valve. , Ikani plunger yokhala ndi kugwirizana kotsetsereka pakati pa mapeto a mutu wa valavu womwe umadutsa mu manja a valve, gawo la mutu wa valve lomwe lili kunja kwa manja a valve limaperekedwa ndi radial yoyamba kupyolera mu dzenje, mapeto amodzi a plunger amapita. Kupyolera kumapeto kwa mutu wa valavu ndikugwirizanitsa ndi nsonga ya valve, mapeto ena a plunger amapita ku radial yoyamba kupyolera mu dzenje, ndipo groove ya annular imaperekedwa pa circumference ya valve core. Manja a valve amaperekedwa ndi radial yachiwiri kudutsa dzenje ndi radial yachitatu kudzera mu dzenje lofananira ndi groove ya annular.

Valavu yaikulu yothandizira imayikidwa pamwamba ndi m'munsi mwa valavu yaikulu yolamulira, imodzi pamwamba ndi pansi. Valavu imayika kupanikizika kwakukulu kwa hydraulic system yonse kuti igwire ntchito. Pamene kupanikizika kwa dongosolo kumadutsa kupanikizika kwa valve yaikulu yothandizira, valavu yaikulu yothandizira imatsegula kayendedwe ka mafuta a thanki yobwereranso kuti iwononge mafuta a hydraulic kubwerera ku thanki kuti ateteze dongosolo lonse la hydraulic ndikupewa kuthamanga kwa mafuta kwambiri.