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功能用途
升(sheng)(sheng)(sheng)降(jiang)系統(tong)是用(yong)(yong)于海(hai)洋平臺(tai)升(sheng)(sheng)(sheng)降(jiang)的傳(chuan)動裝(zhuang)置。作業(ye)(ye)時(shi)將樁(zhuang)腿下(xia)伸(shen)到船(chuan)底,使其站(zhan)立(li)在海(hai)床上,然后(hou)平臺(tai)在升(sheng)(sheng)(sheng)降(jiang)裝(zhuang)置的作用(yong)(yong)下(xia)被托起并離開水(shui)面(mian),平臺(tai)穩定(ding)后(hou)開始(shi)作業(ye)(ye)。在自升(sheng)(sheng)(sheng)式鉆井平臺(tai)托航時(shi),樁(zhuang)腿在系統(tong)的作用(yong)(yong)下(xia)被收回,使平臺(tai)處于漂浮狀(zhuang)態。該升(sheng)(sheng)(sheng)降(jiang)系統(tong)通過(guo)齒輪齒條(tiao)(tiao)結構實現樁(zhuang)腿的升(sheng)(sheng)(sheng)降(jiang)。鎖(suo)緊(jin)系統(tong)利(li)用(yong)(yong)楔形塊的特點(dian),同(tong)時(shi)從垂直和水(shui)平方向約束鎖(suo)緊(jin)齒條(tiao)(tiao),進行(xing)鎖(suo)緊(jin)及解(jie)鎖(suo)操作