TM70301 proportional solenoid vavu hydraulic mpope excavator Chalk

The screw cartridge proportional valve ndi gawo la katiriji lopangidwa ndi electromagnetic proportional cartridge lomwe limakhazikika pa blockage yamafuta. Valve ya screw cartridge ili ndi mawonekedwe osinthika, kupulumutsa mapaipi ndi mapangidwe otsika a nkhuni, ndi zina zambiri. Zakhala zikugwiritsidwa ntchito mochulukira m'makina omanga m'zaka zaposachedwa. Chomwe chimagwiritsidwa ntchito mozungulira katiriji mtundu wa proportional valavu uli ndi mitundu iwiri, itatu, inayi ndi mipikisano yodutsa, njira ziwiri zofananira valavu yayikulu yofananira, nthawi zambiri zigawo zake zimaphatikizana kupanga valavu yophatikizika, kuyenda, kuwongolera kuthamanga; Ulalo atatu
Valavu yofananira ndiye valavu yayikulu yochepetsera kuthamanga, yomwenso ndi valavu yofananira yomwe imagwiritsidwa ntchito kwambiri pamakina oyendera ma hydraulic system, yomwe imagwiritsa ntchito kwambiri hydraulic multiway valve pilot oil circuit. Valavu yochepetsera mphamvu yanjira zitatu imatha kulowa m'malo mwa valavu yachikhalidwe yochepetsera valavu yoyendetsa, yomwe imakhala yosinthasintha komanso yolondola kwambiri kuposa valavu yoyendetsa. Ikhoza kupangidwa kukhala proportional servo control manual multi-way valve monga momwe tawonetsera mu Chithunzi 1. Ndi zizindikiro zosiyana zolowera, valavu yochepetsera mphamvu imapangitsa kuti pistoni yotuluka ikhale ndi mphamvu zosiyana kapena kuthamanga kuti zitheke kulamulira molingana ndi kusamuka kwa multi- njira ya valve spool. Ma valve a njira zinayi kapena zingapo zomangira katiriji amatha kuyendetsedwa payekhapayekha pa chipangizo chogwirira ntchito.
Valavu yamtundu wa slide valve, yomwe imadziwikanso kuti valavu yogawa, ndi imodzi mwazinthu zofunika kwambiri pamakina amtundu wa hydraulic system, yomwe imatha kuzindikira mayendedwe ndi kayendedwe ka valavu yophatikizika.
Electro-hydraulic slide valve proportional multiway valve ndi njira yabwino kwambiri yosinthira ma electro-hydraulic conversion, imasungabe ntchito yoyambira ya ma multiway valve, komanso imawonjezera malo ogwiritsira ntchito magetsi molingana ndi ntchito ya servo ndikuzindikira katundu ndi njira zina zowongolera, ndi makina omanga kugawa ma valve m'malo mwazinthu.
Chifukwa cha kuganiziridwa kwa mtengo wopangira komanso zofunikira zowongolera makina omanga sizinthu zapamwamba, valavu yofananira yamitundu yambiri ilibe sensor yosuntha, yokhala ndi kuzindikira kwamagetsi ndikuwongolera zolakwika. Kusamuka kwa spool kumakhudzidwa mosavuta ndi kusinthasintha kwapanikiza komwe kumachitika chifukwa cha kusintha kwa katundu, ndipo kuyang'ana kowonekera kumafunika kuti zitsimikizidwe kuti ntchitoyo idzatha panthawi ya ntchito. Kuwongolera kwamagetsi, ntchito yoyang'anira kutali iyenera kusamala kwambiri kukhudzidwa kwa kusokoneza kwakunja. Posachedwapa, ndi chitukuko cha teknoloji yamagetsi, anthu akugwiritsa ntchito zowonjezera mkati
Masensa osuntha monga dynamic transformer (LDVT) amagwiritsidwa ntchito kuti azindikire kusuntha kwa malo a spool ndikuzindikira kuwongolera kotsekeka kwa kusamuka kwa spool. Valavu yophatikizika kwambiri iyi imakhala ndi solenoid proportional valavu, sensor yaposachedwa, amplifier pagalimoto ndi mabwalo ena apakompyuta.