Muna 10 BC, mugadziri wekare weRoma Vitruvius akatsanangura muchina wekusimudza mubhuku rake rekuvaka.Muchina uyu une mast, pamusoro pemasti pane pulley, nzvimbo yedanda inogadziriswa netambo yekudhonza, uye tambo inopfuura nemupulley inodhonzwa newinch kusimudza zvinhu zvinorema.
Muzana ramakore rechi 15, Italy yakagadzira jib crane kugadzirisa dambudziko iri.Iyo crane ine cantilever yakarerekera ine pulley pamusoro peruoko, iyo inogona kusimudzwa uye kutenderedzwa.
Pakati nepakati nekupera kwezana ramakore rechi 18, mushure mekunge watt yavandudzwa nekugadzira injini yemhepo, akapa mamiriro emagetsi ekusimudza michina.Muna 1805, Glen engineer Lenny akavaka batch rekutanga rema cranes echiteshi cheLondon.Muna 1846, Armstrong wekuEngland akachinja kireni yehutsi muNewcastle dock kuita hydraulic crane.
Mukutanga kwezana ramakore rechi20, shongwe crane dzaishandiswa muEurope.
Iyo crane inonyanya kusanganisa nzira yekusimudza, mashandiro ekushandisa, luffing mechanism, slewing mechanism uye chimiro chesimbi.Kusimudza michina ndiyo yekutanga kushanda kwecrane, iyo inonyanya kuumbwa yekumisikidza system uye winch, pamwe nekusimudza zvinhu zvinorema kuburikidza nehydraulic system.
Iyo inoshanda sisitimu inoshandiswa kufambisa zvinhu zvinorema kureba uye nehorizontally kana kugadzirisa nzvimbo yekushanda yecrane.Iyo inowanzo umbwa nemota, reducer, brake uye vhiri.Iyo luffing mechanism inongogadzirirwa pane jib crane.Iyo amplitude inoderera kana jib yakasimudzwa uye inowedzera kana yadzikiswa.Yakakamurwa kuva yakaenzana luffing uye unbalanced luffing.Iyo nzira yekuuraya inoshandiswa kutenderedza boom uye inoumbwa nemudziyo wekutyaira uye mudziyo wekutakura.Chimiro chesimbi ndicho chimiro chekreni.Iwo makuru anotakura zvikamu senge bhiriji, boom uye gantry inogona kuva bhokisi chimiro, truss chimiro kana webhu chimiro, uye vamwe vanogona kushandisa chikamu simbi sedanda rinotsigira.
Nguva yekutumira: Oct-30-2021