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功能用途
升(sheng)降(jiang)(jiang)(jiang)(jiang)系(xi)統(tong)(tong)(tong)是用于海洋平(ping)(ping)臺(tai)升(sheng)降(jiang)(jiang)(jiang)(jiang)的傳動(dong)裝置。作(zuo)(zuo)業(ye)時(shi)將樁(zhuang)腿下伸到船底,使其站立在海床上(shang),然后(hou)平(ping)(ping)臺(tai)在升(sheng)降(jiang)(jiang)(jiang)(jiang)裝置的作(zuo)(zuo)用下被托起并離(li)開水(shui)面,平(ping)(ping)臺(tai)穩定后(hou)開始作(zuo)(zuo)業(ye)。在自升(sheng)式(shi)鉆井平(ping)(ping)臺(tai)托航時(shi),樁(zhuang)腿在系(xi)統(tong)(tong)(tong)的作(zuo)(zuo)用下被收回,使平(ping)(ping)臺(tai)處(chu)于漂浮(fu)狀(zhuang)態。該升(sheng)降(jiang)(jiang)(jiang)(jiang)系(xi)統(tong)(tong)(tong)通過齒輪齒條(tiao)(tiao)結構實現樁(zhuang)腿的升(sheng)降(jiang)(jiang)(jiang)(jiang)。鎖緊系(xi)統(tong)(tong)(tong)利用楔形塊的特點,同時(shi)從垂(chui)直和水(shui)平(ping)(ping)方向約束鎖緊齒條(tiao)(tiao),進行鎖緊及解鎖操作(zuo)(zuo)