Excavator solenoid valve set 423-4562 proportional solenoid valve

Electromagnetic proportional valve hana kumu a me ka ʻike:

Hiki ke hoʻokaʻawale ʻia ka mana o ka valve i ʻelua ʻano:
Hoʻokahi ka mana o ka hoʻololi: ʻo ka wehe piha ʻana a i ʻole ka pani piha ʻana, ʻo ka nui a i ʻole ka liʻiliʻi o ke kahe, ʻaʻohe kūlana waena, e like me ka electromagnetic maʻamau ma o nā kīwaha, nā kiwi hoʻohuli electromagnetic, nā kiwi hoʻohuli electro-hydraulic.
ʻO ka mea ʻē aʻe ka hoʻomau mau ʻana: hiki ke wehe ʻia ke awa valve e like me ka pono o kēlā me kēia degere o ka wehe ʻana, a laila e kāohi ana i ka nui o ke kahe ʻana, ʻo ia mau valve ka mana lima, e like me nā throttle valves, akā hoʻokele uila ʻia, e like me ka proportional. kiwikā, servo valves.
No laila ke kumu o ka hoʻohana ʻana i ka valve proportional a i ʻole servo valve ʻo ia: e hoʻokō i ka mana kahe e ka mana uila (ʻoiaʻiʻo, ma hope o ka hoʻololi ʻana o ka hoʻololi ʻana hiki ke hoʻokō i ka mana kaomi, a me nā mea ʻē aʻe), ʻoiai ʻo ia ka mana throttling, pono e nalowale ka ikehu, servo ʻOkoʻa ka valve a me nā kīwī ʻē aʻe, ʻoi aku ka nui o kona nalowale o ka ikehu, no ka mea, pono ia i kahi kahe e mālama ai i ka hana o ka ʻaila kaapuni mua.

ʻO ka loina hana o ka valve solenoid proportional

Hoʻokumu ʻia ia ma ke kumu o ka solenoid on-off valve: i ka pau ʻana o ka mana, kaomi pololei ka pūnāwai i ke kumu i ka noho, e pani ai ka valve. wiliwili
Ke hoʻohana ʻia ka uila, ʻoi aku ka ikaika electromagnetic i hana ʻia ma luna o ka ikaika puna a hāpai i ke kumu, no laila e wehe ai i ka valve. Hoʻololi ka valve solenoid proportional i ke ʻano o ka valve solenoid: hana ia i ke kaulike ma waena o ka ikaika o ka puna a me ka ikaika electromagnetic ma lalo o kekahi manawa coil. ʻO ka nui o ka coil current a i ʻole ka nui o ka ikaika electromagnetic e pili ana i ka plunger stroke a me ka wehe ʻana o ka valve, a ʻo ka wehe ʻana o ka valve (kahe) a me ke ʻano o ka coil (hōʻailona mana) he pilina laina kūpono.
E kahe ana ka valve solenoid proportional pololei ma lalo o ka noho. Kahe ka waena mai lalo mai o ka noho, a ua like ke kuhikuhi o ka ikaika me ka ikaika electromagnetic, a me ke ku e o ka ikaika puna. No laila, pono e hoʻonohonoho i ka nui a me ka liʻiliʻi o nā kahe kahe e pili ana i ka pae hana (coil current) i ke kūlana hana. Ua pani ʻia ka valve solenoid proportional o ka wai Drey (NC, ʻano paʻa maʻamau) ke pio ka mana.