Izesekeli zemishini yokwakha i-EHPR08-33 ivalve ye-cartridge enentambo

Ukuhlaziywa nokuqedwa kwe-valve ye-pressure ye-proportional pressure

I-current egeleza ku-proportional electromagnet inkulu kakhulu, kodwa umfutho awukakakhuphuki, noma ingcindezi edingekayo ayikwazi ukuhlolwa ngalesi sikhathi ukumelana nekhoyili kazibuthe olinganiselayo, uma ingaphansi kakhulu kwevelu eshiwo, bese kuba isekethe yangaphakathi. ikhoyili ye-electromagnetic iphukile; Uma ukumelana nekhoyili ye-electromagnet kujwayelekile, khona-ke ukuxhumana ne-proportional amplifier kufushane. Ngalesi sikhathi, i-proportional electromagnet kufanele ishintshwe, futhi uxhumano kufanele luxhunywe, noma i-rewound coil kufanele ifakwe.

Lapho isinyathelo sokucindezela sishintsha, ukuguquguquka kwengcindezi ye-amplitude encane kuhlala njalo, futhi isizathu sokungazinzi kwengcindezi ebekiwe ikakhulukazi ukuthi kukhona ukungcola okunamathiselwe phakathi komnyombo we-electromagnetic part kanye nengxenye eqondisayo (umkhono womhlahlandlela), ovimbela ukunyakaza kwengqikithi. Ngaphezu kwalokho, ingxenye eshelelayo ye-spool eyinhloko inamathele ngokungcola, okuvimbela ukunyakaza kwe-spool eyinhloko. Ngenxa yemiphumela yalokhu kungcola, i-hysteresis iyanda. Ebubanzini be-hysteresis, ingcindezi ayizinzile futhi ingcindezi iguquguquka njalo. Esinye isizathu siwukuthi ukuguga kwe-iron core kanye nombhangqwana wemikhono kazibuthe, igebe liyakhula, futhi ingcindezi elungisiwe (ngenani elithile lamanje) ayizinzile.

Ngalesi sikhathi, i-valve kanye ne-electromagnetic proportional ingahlakazwa ukuze ihlanzwe, futhi ukungcoliswa kwamafutha we-hydraulic kungabhekwa. Uma idlula imithethonqubo, amafutha kufanele ashintshwe; Ukuze uthole imvume eningi ebangelwa ukuguga kwe-iron core, okuholela ekwandeni kwe-force hysteresis, okuholela ekulawuleni ingcindezi engazinzile, ububanzi obungaphandle be-iron core kufanele bukhuliswe ukuze kugcinwe ukuhambisana kahle nomkhono womhlahlandlela.

Ukusabela kokucindezela kuyavilapha futhi ukucindezela kushintsha kancane ngenxa yokuthi umoya okuzibuthe olinganiselayo awukhishwa uhlanzekile; I-orifice egxilile kanye ne-valve orifice eyinhloko (noma i-bypass orifice) yokumanzisa umgogodla ka-electromagnetic ivinjwe ukungcola, futhi ukunyakaza kwe-proportional ye-electromagnetic core kanye ne-valve core kuvinjelwa ngokungenasidingo; Ngaphezu kwalokho, umoya ungenwa ohlelweni, oluvame ukwenzeka lapho imishini isanda kufakwa futhi iqala ukusebenza noma lapho umoya uxutshwa ngemva kokuvala isikhathi eside.