Makina omanga magawo SV98-T3003 24V a John Deere solenoid valve

Proportional pressure valve failure kusanthula ndi kuthetsa

Chifukwa valavu yothamanga yofananira imangokhala pamaziko a valavu yamagetsi wamba, chowongolera chowongolera chimasinthidwa ndi ma electromagnetic proportional. Choncho, zolakwika zosiyanasiyana zomwe zimapangidwa ndi valve yamagetsi wamba, zomwe zidzapangitsenso zifukwa zomwe zimayambitsa zolakwika ndi njira zochotseratu zowonongeka zowonongeka zimagwiranso ntchito mokwanira pa valve yofanana yofanana (monga valavu yofananira yothandizira), yomwe ingakhale kugwiridwa ndi umboni. Kuphatikiza apo:

① Proportional electromagnet palibe pakali pano, kotero kuti kulephera kwamagetsi panthawiyi kutha kuwunikidwa molingana ndi zomwe zili pamwambapa "(1) proportional electromagnet fault". Pamene kulephera kwa kayendetsedwe ka magetsi kumachitika, mukhoza kuyang'ana kaye mtengo wamakono ndi mita yamagetsi kuti muwone ngati pali vuto ndi kayendetsedwe ka kayendetsedwe ka magetsi, kapena vuto ndi ma electromagnetic proportional electromagnet, kapena vuto ndi gawo la valve, akhoza kukhala symptomatic.

② Ngakhale kuti magetsi akuyenda molingana ndi ma electromagnet adavotera, koma kupanikizika sikukwera konse, kapena kukakamizidwa kofunikira kulibe, pakati pa proportional pilot pressure regulator (valvu yothandizira) ndi valavu yayikulu yothandizira, chowongolera chowongolera valavu wamba woyendetsa ndegeyo imasungidwabe, yomwe imagwira ntchito ngati valavu yachitetezo pano. Pamene kupanikizika kwa ma valve ndi otsika kwambiri, ngakhale kuti mphamvu yamagetsi yamagetsi kudzera pakalipano ikuvotera, koma kupanikizika sikukwera, ngati kupanikizika kwa valve kumakhala kochepa kwambiri, woyendetsa ndege akutuluka kuchokera ku valve kubwerera ku thanki, kotero kuti kupsyinjika sikumabwera. Pachifukwa ichi, kupanikizika kwa valve kuyenera kuwonjezeka ndi pafupifupi 1MPa kusiyana ndi kuthamanga kwakukulu kwa valve.

(3) The panopa ikuyenda kudzera proportional maginito electromagnetic ndi lalikulu kwambiri, koma kuthamanga akadali si mmwamba, kapena kuthamanga chofunika sangathe kufufuzidwa pa nthawi ino koyilo kukana wa proportional maginito electromagnet, ngati kutali kwambiri kuposa mtengo wotchulidwa, ndiye dera lamkati la koyilo yamagetsi yamagetsi yasweka; Ngati kukana kwa koyilo ya electromagnet kuli kwabwinobwino, ndiye kuti kulumikizana ndi amplifier yofananira kumakhala kozungulira. Panthawiyi, ma electromagnet oyenerera ayenera kusinthidwa, ndipo kugwirizanako kuyenera kulumikizidwa, kapena kuyikanso koyilo yobwezeretsanso.