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 hemo ka mea hoʻopili solenoid valve a i ʻole ua pio ka 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 hopena o ka hopena, liʻiliʻi loa ka huli ʻana o ka coil, a ʻaʻole lawa ka suction hiki ke hana 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.
ʻO ka mana hoʻokomo o ka valve proportional maʻamau ka nui, ma ke ʻano he mau 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.