Chogwirira cha valavu yowongolera oyendetsa ndege yamagetsi

Mu kusintha kwanzeru kwa makina omanga, chogwirira cha valavu chowongolera choyendetsa chamagetsi cha excavator chakhala chinthu chofunikira kwambiri m'makampani chifukwa cha malo ake ogwirira ntchito molondola, kusinthasintha kwa malo owonekera bwino komanso mawonekedwe ake apamwamba aukadaulo. Gawo latsopanoli lomwe limaphatikiza kulamulira kwamagetsi ndi magwiridwe antchito amakina limapereka mayankho ogwira mtima pantchito zaukadaulo pansi pa mikhalidwe yosiyanasiyana yogwirira ntchito kudzera mu kukonza magwiridwe antchito onse.

Mphamvu yokhazikika kuti zitsimikizire kuti zipangizo zikugwira ntchito modalirika

Ponena za magetsi, chogwirira cha valavu chowongolera ichi chili ndi kusinthasintha kwabwino kwambiri. Mphamvu yake yamagetsi ndi 10-32VDC, ndipo imatha kugwira ntchito mokhazikika m'malo osiyanasiyana opangira magetsi, kaya m'malo osakhazikika ogwirira ntchito amagetsi kwakanthawi kapena m'malo wamba okhala ndi mawonekedwe amagetsi wamba, imatha kuwonetsetsa kuti zida zikugwira ntchito bwino. Nthawi yomweyo, mphamvu yake yotsika ndi yodziwika bwino, 100mA yokha kapena kuchepera, zomwe zimachepetsa kwambiri kugwiritsa ntchito mphamvu kwa zida ndikuwonjezera kugwiritsa ntchito mphamvu moyenera. Mphamvu ya pulse imakhala yochepa pa 10A kapena kuchepera, zomwe zimapewa kuwonongeka kwa zida zomwe zimachitika chifukwa cha kugwedezeka kwambiri kwamagetsi ndikuwonetsetsa kuti makina onse amagetsi ali otetezeka komanso okhazikika.

Kutumiza kwa chizindikiro koyenera kuti chiwongolere molondola

Gawo lotulutsa chizindikiro ndi lofunika kwambiri pa izi. Pogwiritsa ntchito njira yolumikizirana ya CAN (SAE J1939) EJM1, adilesi yoyambira imayikidwa pa 249, liwiro lolumikizirana ndi 250kbps, ndipo ndi nthawi yoyeserera ya 10ms, malangizo ogwirira ntchito amatha kutumizidwa mwachangu komanso molondola ku makina owongolera excavator. Izi zimathandiza kuti chilichonse chomwe wogwiritsa ntchito achite chibwezeretsedwe ku zidazo munthawi yake komanso molondola, zomwe zimapangitsa kuti magwiridwe antchito akhale olondola pamlingo wa millimeter. Kulondola kwa kutulutsa kwake kumakhala bwino kwambiri pansi pa kutentha kosiyanasiyana. Mu malo okhala ndi -10 - +50°C, kulondola kwapakati kumatha kufika ±2%, ndipo m'malo okhala ndi -40 - +75°C, kumathanso kusungidwa pafupifupi ±3%, kuonetsetsa kuti zidazo zimatha kugwira ntchito mokhazikika komanso molondola m'malo osiyanasiyana ovuta.

Magawo olondola a makina, kulimba komanso chitonthozo

Poganizira za magwiridwe antchito a makina, chogwirira cha valavu yowongolera chimagwiranso ntchito bwino. Kuthamanga kwake kumayendetsedwa pa ± 1.6% kapena kuchepera, ndipo kusiyana kwapakati pa makina ndi 0.5° kapena kuchepera, zomwe zimapangitsa kuti chogwirira chizimveka bwino komanso choyankha, zomwe zimachepetsa bwino zolakwika zogwirira ntchito ndikukweza chitonthozo ndi kulondola kwa ntchito. Kutentha kwa ntchito ndi -40-75°C, komwe kumatha kusintha malo osiyanasiyana kuyambira madera ozizira mpaka madera otentha, zomwe zimakulitsa kwambiri momwe zida zimagwiritsidwira ntchito. Mphamvu yayikulu yogwirira ntchito ndi 226N/m, zomwe zimatsimikizira kuti chogwiriracho ndi cholimba mokwanira kuti chizitha kupirira kugwiritsidwa ntchito mwamphamvu kwambiri pomwe chikutsimikizira mphamvu yoyenera yogwirira ntchito.

Malangizo anzeru osinthira, luso logwirira ntchito bwino

Ponena za malangizo a switch, chinthucho chapangidwanso mosamala. Voltage ndi current zomwe zavoteredwa zagawidwa m'magawo awiri: DC30V/3A (resistance load) ndi DC30V/1A (resistance load). Mphamvu yocheperako yobwereka ndi DC5V/160mA ndi DC30V/26mA. Mphamvu yogwiritsira ntchito ndi mphamvu yogwirira ntchito zimayikidwanso moyenera malinga ndi ma switch osiyanasiyana, monga ma switch 1 ndi 3 ndi 1mm/4N, ndipo switch 2 ndi 1mm/6N. Ma parameter awa amapangitsa kuti switch igwire ntchito mozama komanso mopulumutsa ntchito, zomwe zimapangitsa kuti wogwiritsa ntchito azichita bwino. Nthawi yomweyo, kutentha kwake ndi - 40 - 75°C, kuonetsetsa kuti switch ikugwira ntchito bwino komanso modalirika m'malo osiyanasiyana.

Chogwirira cha valavu chowongolera choyendetsa magetsi cha excavator ichi chili ndi magwiridwe antchito abwino kwambiri pakupereka magetsi, kutumiza ma signal, magwiridwe antchito a makina ndi malangizo osinthira, zomwe mosakayikira zimapereka chitsimikizo cholimba cha magwiridwe antchito anzeru komanso olondola a excavator. Ndi kukwezedwa kwake pang'onopang'ono ndikugwiritsidwa ntchito pamsika, mosakayikira chidzakweza makampani opanga makina omanga pamlingo wapamwamba ndikubweretsa magwiridwe antchito apamwamba komanso kusintha kwabwino pama projekiti osiyanasiyana omanga uinjiniya.

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