Kusiyana pakati pa valavu yolumikizira ndi njira ziwiri za hydraulic lock
2024-02-06Mwachidule
Bi-directional hydraulic locks ndi mavavu owongolera amatha kugwiritsidwa ntchito ngati zida zotsekera nthawi zina kuti zitsimikizire kuti chipangizo chogwira ntchito sichidzagwedezeka, kuthamangitsa kapena kusuntha chifukwa chazifukwa zakunja monga kulemera kwake.
Komabe, pamikhalidwe ina yothamanga kwambiri, sangathe kugwiritsidwa ntchito mosinthana. Tiyeni tikambirane ena mwa malingaliro a wolemba pa mawonekedwe apangidwe azinthu ziwirizo.
Njira ziwiri za hydraulic lock ndi gawo la No. Nthawi zambiri amagwiritsidwa ntchito m'masilinda onyamula ma hydraulic cylinders kapena mabwalo amafuta amagalimoto kuti ateteze silinda ya hydraulic kapena mota kuti isatsetsereke pansi pochita zinthu zolemetsa. Pakafunika kuchitapo kanthu, mafuta ayenera kuperekedwa kudera lina, ndipo valavu yanjira imodzi iyenera kutsegulidwa kudzera mumayendedwe owongolera mafuta kuti alole kuzungulira kwamafuta Pokhapokha atalumikizidwa ndi hydraulic cylinder kapena motor.
Chifukwa cha makina akewo, pakuyenda kwa silinda ya hydraulic, kulemera kwakufa kwa katunduyo nthawi zambiri kumayambitsa kutayika kwachangu m'chipinda chachikulu chogwirira ntchito, zomwe zimapangitsa kuti pakhale vacuum. Izi nthawi zambiri zimachitika pamakina awa:
Silinda yoyikika moyima mu makina osindikizira amitundu inayi;
Silinda yapamwamba yamakina opangira njerwa;
Silinda yamafuta yomwe imazungulira mmbuyo ndi mtsogolo m'makina agalasi;
Swing yamphamvu yamakina omanga;
winch motor kwa hydraulic crane;
Chotsekera chomwe chimagwiritsidwa ntchito kwambiri ndi hydraulic lock valve. Tiyeni tiwone gawo lake lonse ndi momwe amagwiritsira ntchito.
Kulemera kwake kukakhala ndi kulemera kwake, ngati mbali yolamulira yamafuta sidzabwezeredwa munthawi yake, chopukutira chimapangidwa mbali ya B, zomwe zimapangitsa kuti pisitoni yowongolera ibwezere chifukwa cha kasupe, yomwe imatseka njira imodzi. valavu, ndiyeno pitirizani kupereka mafuta, kupanga chipinda chogwirira ntchito Kupanikizika kumakwera kenako ndikutsegula valavu ya njira imodzi. Kutsegula ndi kutseka pafupipafupi kotereku kumapangitsa kuti katunduyo apite patsogolo pang'onopang'ono panthawi yakugwa, zomwe zimapangitsa kuti pakhale kugwedezeka kwakukulu ndi kugwedezeka. Choncho, njira ziwiri zotsekera ma hydraulic locks nthawi zambiri sizimalimbikitsidwa kuti zikhale zothamanga kwambiri komanso zolemetsa, koma zimagwiritsidwa ntchito kwambiri. Ndizoyenera malupu otsekedwa ndi nthawi yayitali yothandizira komanso kuthamanga kwapansi.
Kuonjezera apo, ngati mukufuna kuthetsa vutoli, mukhoza kuwonjezera valavu yowonongeka pambali yobwereranso mafuta kuti muwongolere liwiro lakugwa kuti kuthamanga kwa pampu ya mafuta kukwanitse kukwaniritsa zofunikira za mafuta olamulira.
Mawonekedwe a valve balancing:
Valve yolimbana nayo, yomwe imatchedwanso kuti liwiro lotsekera (onani Chithunzi 3), ndi valavu yoyendetsedwa ndikunja komanso yotuluka mkati mwa njira imodzi. Amakhala ndi valavu yanjira imodzi ndi valavu yotsatizana yomwe imagwiritsidwa ntchito palimodzi. Mu hydraulic circuit, imatha kuletsa silinda ya hydraulic kapena mota. Mafuta amtundu wamafuta amachititsa kuti silinda ya hydraulic
1-mapeto chivundikiro; 2, 6, 7-masika mpando; 3, 4, 8, 21-kasupe;
5, 9, 13, 16, 17, 20 - mphete yosindikiza 10 - valve ya poppet; 11 - valavu pachimake;
- 14-valve manja; 15-pistoni yolamulira; 18-control port chivundikiro 19-mutu;
22-Njira imodzi ya valve; 23-Vavu thupi
Chithunzi 3 Chithunzi chojambula cha valve yosanja
Kapena galimotoyo sidzatsika chifukwa cha kulemera kwa katunduyo, ndipo idzakhala ngati loko panthawiyi. Pamene hydraulic cylinder kapena motor ikufunika kusuntha, madzimadzi amaperekedwa ku dera lina la mafuta, ndipo nthawi yomweyo, dera lamkati la mafuta la valve balance limayang'anira kutsegula kwa valve yotsatizana kuti igwirizane ndi dera ndikuzindikira kayendedwe kake. Popeza kapangidwe ka valve yotsatizana yokha ndi yosiyana ndi njira ziwiri za hydraulic loko, kupanikizika kwina kumbuyo kumakhazikitsidwa pafupipafupi pogwira ntchito, kuti ntchito yayikulu ya silinda ya hydraulic kapena mota isapangitse kupanikizika koyipa. chifukwa cha kulemera kwake komanso kutsetsereka kothamanga kwambiri, kotero palibe kuyenda kwamtsogolo komwe kudzachitika. Kugwedezeka ndi kugwedezeka ngati loko ya hydraulic lock.
Chifukwa chake, ma valve owerengera nthawi zambiri amagwiritsidwa ntchito m'mabwalo okhala ndi liwiro lalitali komanso katundu wolemetsa komanso zofunika zina zokhazikika.
Chithunzi 3 ndi valavu yotsutsana ndi mbale, ndipo m'munsimu muli mawonekedwe amtundu wa plug-in counterbalance valve.
Mapeto
Kuphatikiza kusanthula kwamapangidwe a valve balance ndi njira ziwiri za hydraulic lock, wolemba amalimbikitsa:
Pankhani ya liwiro lotsika komanso zopepuka zokhala ndi zofunikira zochepa pa kukhazikika kwa liwiro, kuti muchepetse ndalama, njira ziwiri zotsekera ma hydraulic lock zitha kugwiritsidwa ntchito ngati chotchingira dera. Komabe, pamayendedwe othamanga kwambiri komanso katundu wolemetsa, makamaka ngati pakufunika kukhazikika kothamanga kwambiri, njira ziwiri za hydraulic lock ziyenera kugwiritsidwa ntchito. Mukamagwiritsa ntchito valve yotsekera ngati gawo lotsekera, simuyenera kutsata mwachimbulimbuli kuchepetsa mtengo ndikusankha njira ziwiri zotsekera ma hydraulic, apo ayi zitha kuwononga kwambiri.
