Ma Crane a Jib Okhala ndi Mizati Aakulu Okhala ndi Mphamvu Zambiri

Kireni ya jib yoyikidwa pa chipilala ndi yoyenera kwambiri malo ogwirira ntchito ang'onoang'ono komanso opapatiza, ndipo imapereka mwayi wowonjezera kugwiritsa ntchito mosavuta ikagwiritsidwa ntchito pamlingo wapamwamba kapena wautali. Zida zonse zimaphatikizapo mzati wapamwamba, mzati wapansi, mzati waukulu, ndodo yayikulu yomangira, njira yonyamulira, njira yothira, makina amagetsi, makwerero ndi nsanja yosamalira. Pakati pa izi, chipangizo chothira chomwe chayikidwa pa mzati chimatha kutembenuza mzati waukulu pa 360° kuti unyamule zinthu, ndikuwonjezera malo onyamulira ndi kutalika kwake.

Maziko omwe ali kumapeto kwa mzatiwo amakhazikika pa maziko a konkriti kudzera m'mabotolo a nangula, ndipo mota imayendetsa chipangizo chochepetsera mphamvu kuti chizungulire mzatiwo, ndipo choyimitsa magetsi chimagwira ntchito mozungulira pa mzatiwo I-beam. Kreni ya jib ya mzati ingakuthandizeni kufupikitsa kukonzekera kupanga ndi nthawi yogwira ntchito yosapindulitsa, ndikuchepetsa kudikira kosafunikira.

Kugwiritsa ntchito pillar jib crane kuyenera kutsatira malamulo awa:

1. Wogwiritsa ntchito ayenera kudziwa bwino kapangidwe ndi momwe crane ya jib imagwirira ntchito. Crane ikhoza kugwiritsidwa ntchito yokha pokhapokha atapambana maphunziro ndi kuwunika, ndipo malamulo achitetezo ayenera kutsatiridwa.

2. Musanagwiritse ntchito chilichonse, yang'anani ngati njira yotumizira ndi yabwinobwino komanso ngati chosinthira chachitetezo ndi chodalirika komanso chosavuta kugwiritsa ntchito.

3. Kireni ya jib iyenera kukhala yopanda kugwedezeka kosazolowereka komanso phokoso panthawi yogwira ntchito.

4. N'koletsedwa kugwiritsa ntchito crane ya cantilever mopitirira muyeso, ndipo malamulo a "kuletsa khumi" mu malamulo okhudza chitetezo cha crane ayenera kutsatiridwa.

5. Pamene choyimitsa kapena chokweza chikuyenda pafupi ndi pothera, liwiro liyenera kuchepetsedwa. N'koletsedwa kugwiritsa ntchito malire a pothera ngati njira yoyimitsa.

6. Malangizo pa zipangizo zamagetsi za jib crane yoyikidwa mzati ikagwiritsidwa ntchito:

① Ngati injiniyo ili ndi kutentha kwambiri, kugwedezeka kosazolowereka komanso phokoso;

② Onani ngati choyambira cha bokosi lowongolera chili ndi phokoso losazolowereka;

③ Ngati waya ndi womasuka komanso wokangana;

④ Ngati makinawo alephera kugwira ntchito, monga kutentha kwambiri kwa injini, phokoso losazolowereka, utsi wochokera ku dera lozungulira ndi bokosi logawa, ndi zina zotero, imitsani makinawo nthawi yomweyo ndikudula magetsi kuti akukonzedwe.