Loader excavator lako 375-4414 Hydraulic valve

ʻO nā hewa maʻamau ʻaʻole i hana ka solenoid valve, pono e nānā ʻia mai nā ʻano aʻe:

1. Ua wehe ka mea hoʻopili solenoid valve a i ʻole ka mea hoʻopili uea, ʻaʻole uila ka solenoid valve, a hiki ke hoʻopaʻa ʻia ka mea hoʻopili uea.
2, ua puhi ʻia ka solenoid coil, hiki iā ʻoe ke wehe i ka solenoid valve wiring, ana me ka multimeter, inā wehe ʻia, pau ka solenoid coil.ʻO ke kumu o ka puʻupuʻu o ka coil, ke kumu o ka insulation maikaʻi ʻole a me ka leakage magnetic, e hoʻonui ai i ke au o ka coil i ka nui a wela, no laila pono e pale i ka ua mai ke komo ʻana i ka solenoid valve.Eia kekahi, ikaika loa ka pūnāwai, nui loa ka ikaika o ka hopena, he liʻiliʻi loa ka huli ʻana o ka coil, a ʻaʻole lawa ka suction hiki ke hoʻopau i ke ahi.Inā pilikia, hiki ke kaomi i ke pihi manual ma ka coil mai ke kūlana "0" i ka hana maʻamau i ke kūlana "1" e wehe i ka valve.
3, paʻa ka solenoid valve: ka solenoid valve lima a me ka spool me kahi liʻiliʻi liʻiliʻi (ma lalo o 0.008mm), maʻamau hoʻokahi.
ʻO ka hui ʻāpana, ke loaʻa nā mea haumia mechanical a i ʻole ka ʻaila lubricating liʻiliʻi, maʻalahi ke paʻa.ʻO ke ʻano lapaʻau e hiki ke hoʻohana i ke kaula kila ma ka puka liʻiliʻi o ke poʻo e hoʻihoʻi ai.ʻO ka hopena koʻikoʻi ʻo ka wehe ʻana i ka pahu solenoid, lawe i ka spool a me ka lima spool, a hoʻomaʻemaʻe me CCI4, i hiki ke maʻalahi ka spool i ka lima valve.I ka wehe ʻana, pono e nānā i ke kaʻina hui a me ke kūlana uwea waho o kēlā me kēia ʻāpana, i mea e hui hou ai a uea pololei, a e nānā inā paʻa ka lua o ka aila a inā lawa ka aila lubricating.

He ʻokoʻa ke kalaiwa.ʻO ka mea hoʻokele o ka valve proportional ka electromagnet proportional, a ʻo ka mea hoʻokele o ka valve servo ʻo ia ka mīkini ikaika a i ʻole ka torque motor, a ʻokoʻa nā ʻāpana hana.ʻO ka Hysteresis, ka waena waena, ka bandwidth, ka filtration pololei a me nā ʻano ʻē aʻe he ʻokoʻa, no laila ʻokoʻa nā manawa noi, hoʻohana nui ʻia nā servo valves a me nā servo proportional valves i nā ʻōnaehana hoʻopaʻa paʻa, hoʻohana nui ʻia nā valves proportional o nā hale ʻē aʻe i ka loop loop. nā ʻōnaehana hoʻomalu a me nā ʻōnaehana hoʻokele wikiwiki.
Nui ka mana hoʻokomo o ka valve proportional maʻamau, ma ke ʻano he haneli o Ma a 1 amp a ʻoi aku paha, a ʻoi aku ka nui o ka mana hoʻokomo o ka valve maʻamau.
Liʻiliʻi, ma ke ʻano he ʻumi o MA;ʻOi aku ka liʻiliʻi o ka mana o ka valve proportional, ʻoi aku ka nui o ka hysteresis ma mua o ka valve servo, a ʻoi aku ka kiʻekiʻe o ka mana o ka valve maʻamau, akā kiʻekiʻe nā koi no ka ʻaila.
Ua hoʻomaopopoʻia mai keʻano o ka spool o ka valve proportional i kaulikeʻia e ka mana electromagnetic a me ka hydraulic pressure a me ka ikaika o ka punawai, aʻo ka valve maʻamau i kaulikeʻia e ka hydraulic pressure, no laila,ʻaʻohe pono o ka valve proportional i ka hoʻomaluʻana i ke kahe nui a me ke kiʻekiʻe.Loaʻa nā kiwi like ʻole e wehe ʻia nā huahana mua, ʻo ia ke kumu i kapa ʻia ai lākou he mau ʻāpana proportional.