Momwe mungasankhire zosefera za hydraulic pressure?

Momwe mungasankhire zosefera za hydraulic pressure?

Wogwiritsa ntchito ayenera kumvetsetsa kaye momwe ma hydraulic system amagwirira ntchito, kenako sankhani fyuluta. Cholinga chosankha ndi: moyo wautali wautumiki, wosavuta kugwiritsa ntchito, komanso zosefera zogwira mtima.

Zomwe zimakhudza moyo wa ntchito zoseferaChinthu chosefera chomwe chimayikidwa mkati mwa fyuluta ya hydraulic chimatchedwa chinthu chosefera, ndipo chinthu chake chachikulu ndi chophimba. Fyulutayo imakhala ndi mauna oluka, fyuluta yamapepala, fyuluta yamagalasi, fakitale yamafuta ndi sefa yachitsulo. Zosefera zokhala ndi mawaya ndi ulusi wosiyanasiyana ndizosalimba kwambiri, ngakhale njira yopangira zinthuzi imakulitsidwa (monga: lining, resin impregnating resin), komabe pali zoletsa pamikhalidwe yogwirira ntchito. Zinthu zazikulu zomwe zimakhudza moyo wa fyuluta zikufotokozedwa motere.

1. Kutsika kwapanikizi kumalekezero onse a fyulutaPamene mafuta akudutsa muzitsulo zosefera, kutsika kwinakwake kudzapangidwa pamapeto onse awiri, ndipo mtengo weniweni wa kutsika kwapakati umadalira kapangidwe kake ndi kuyendayenda kwa chinthu cha fyuluta. Pamene fyuluta imavomereza zonyansa mu mafuta, zonyansazi zimakhalabe pamwamba kapena mkati mwa fyuluta, kutchinga kapena kutsekereza zina kudzera m'mabowo kapena ngalande, kuti malo oyenda bwino achepe, kotero kuti kuthamanga kutsika kudzera mu fyulutayo kumawonjezeka. Pamene zonyansa zotsekedwa ndi fyuluta zikupitirizabe kuwonjezeka, kupanikizika kumatsika kale komanso pambuyo pa fyuluta imawonjezeka. Tinthu tating'onoting'ono timeneti tifinya m'mabowo apakati ndikulowanso m'dongosolo; Kutsika kwapakati kudzakulitsanso kukula kwa dzenje loyambirira, kusintha magwiridwe antchito a fyuluta ndikuchepetsa magwiridwe antchito. Ngati kutsika kwamphamvu kuli kokulirapo, kupitilira mphamvu zamapangidwe azinthu zosefera, chinthu chosefera chidzaphwanyidwa ndikugwa, kotero kuti ntchito ya fyuluta itayika. Pofuna kupangitsa kuti fyulutayo ikhale ndi mphamvu zokwanira mkati mwa mphamvu yogwira ntchito ya dongosolo, kupanikizika kochepa komwe kungapangitse kuti chigawo cha fyuluta chikhale chophwanyika nthawi zambiri chimayikidwa ngati 1.5 nthawi yogwira ntchito ya dongosolo. Izi, ndithudi, pamene mafuta ayenera kukakamizidwa kupyolera mu fyuluta wosanjikiza popanda valavu yodutsa. Mapangidwe awa nthawi zambiri amawonekera pazosefera zamapaipi othamanga kwambiri, ndipo mphamvu ya zinthu zosefera iyenera kulimbikitsidwa mkati mwa mafupa amkati ndi ma netiweki (onani 2941, iso 16889, iso 3968).

2. Kugwirizana kwa zinthu zosefera ndi zosefera zili ndi zinthu zonse zosefera zitsulo ndi zinthu zopanda zitsulo, zomwe ndizochuluka, ndipo onse ali ndi vuto loti atha kugwirizana ndi mafuta mu dongosolo. Izi zikuphatikizapo kugwirizanitsa kwa kusintha kwa mankhwala ndi kusintha kwa zotsatira za kutentha. Makamaka mkulu kutentha zinthu sangakhudzidwe ndi zofunika kwambiri. Chifukwa chake, zinthu zosiyanasiyana zosefera ziyenera kuyesedwa kuti zigwirizane ndi mafuta pakatentha kwambiri (onani ISO 2943).

3.Kutengera kwa ntchito yotsika kutenthaDongosolo lomwe limagwira ntchito pamatenthedwe otsika limakhalanso ndi zotsatira zoyipa pa fyuluta. Chifukwa pakutentha kotsika, zida zina zosakhala zachitsulo muzosefera zimakhala zosalimba; Ndipo pa kutentha pang'ono, kuwonjezeka kwa viscosity ya mafuta kumapangitsa kuti kuthamanga kwapansi kukwera, zomwe zimakhala zosavuta kuyambitsa ming'alu yapakati. Pofuna kuyesa momwe ntchito ya fyuluta ikuyendera pa kutentha kochepa, kuyesa kwa "cold start" kwa dongosololi kuyenera kuchitidwa pa kutentha kwakukulu kwa dongosolo. MIL-F-8815 ili ndi njira yapadera yoyesera. China Aviation Standard HB 6779-93 ilinso ndi zofunikira.

4. Kutuluka kwamafuta nthawi ndi nthawiKuyenda kwamafuta m'dongosolo kumakhala kosakhazikika. Kuthamanga kukasintha, kumayambitsa kupindika kwa chinthu chosefera. Pankhani ya otaya nthawi, chifukwa mapindikidwe mobwerezabwereza fyuluta sing'anga zinthu, izo zingachititse kutopa kuwonongeka kwa zinthu ndi kupanga ming'alu kutopa. Chifukwa chake, zosefera pamapangidwe kuti zitsimikizire kuti zosefera zili ndi kukana kutopa mokwanira, pakusankha zosefera ziyenera kuyesedwa (onani ISO 3724).