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功能用途
升(sheng)(sheng)(sheng)降(jiang)(jiang)系(xi)統(tong)是用(yong)于(yu)海(hai)洋平(ping)臺(tai)(tai)(tai)升(sheng)(sheng)(sheng)降(jiang)(jiang)的(de)傳動(dong)裝置。作(zuo)(zuo)業時(shi)將樁(zhuang)腿(tui)下伸到船底,使其站(zhan)立(li)在(zai)(zai)海(hai)床上,然后平(ping)臺(tai)(tai)(tai)在(zai)(zai)升(sheng)(sheng)(sheng)降(jiang)(jiang)裝置的(de)作(zuo)(zuo)用(yong)下被托起并離開水面,平(ping)臺(tai)(tai)(tai)穩定后開始作(zuo)(zuo)業。在(zai)(zai)自升(sheng)(sheng)(sheng)式鉆井平(ping)臺(tai)(tai)(tai)托航(hang)時(shi),樁(zhuang)腿(tui)在(zai)(zai)系(xi)統(tong)的(de)作(zuo)(zuo)用(yong)下被收回,使平(ping)臺(tai)(tai)(tai)處于(yu)漂浮狀態。該升(sheng)(sheng)(sheng)降(jiang)(jiang)系(xi)統(tong)通過齒輪齒條結構實(shi)現樁(zhuang)腿(tui)的(de)升(sheng)(sheng)(sheng)降(jiang)(jiang)。鎖(suo)緊系(xi)統(tong)利用(yong)楔形塊的(de)特點,同時(shi)從垂(chui)直(zhi)和水平(ping)方向約(yue)束鎖(suo)緊齒條,進行(xing)鎖(suo)緊及解鎖(suo)操(cao)作(zuo)(zuo)