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功能用途
升(sheng)降(jiang)系(xi)(xi)統(tong)是(shi)用(yong)于(yu)海洋平臺(tai)(tai)升(sheng)降(jiang)的(de)傳動裝置(zhi)。作(zuo)業時(shi)將(jiang)樁腿下伸到船(chuan)底,使(shi)其(qi)站(zhan)立在(zai)(zai)海床(chuang)上(shang),然后(hou)平臺(tai)(tai)在(zai)(zai)升(sheng)降(jiang)裝置(zhi)的(de)作(zuo)用(yong)下被托起并離開水(shui)面,平臺(tai)(tai)穩定后(hou)開始作(zuo)業。在(zai)(zai)自升(sheng)式鉆井平臺(tai)(tai)托航時(shi),樁腿在(zai)(zai)系(xi)(xi)統(tong)的(de)作(zuo)用(yong)下被收回,使(shi)平臺(tai)(tai)處(chu)于(yu)漂浮狀態。該升(sheng)降(jiang)系(xi)(xi)統(tong)通(tong)過齒輪(lun)齒條結構(gou)實現樁腿的(de)升(sheng)降(jiang)。鎖緊系(xi)(xi)統(tong)利用(yong)楔形塊的(de)特點,同時(shi)從垂(chui)直(zhi)和水(shui)平方向約(yue)束(shu)鎖緊齒條,進(jin)行(xing)鎖緊及解鎖操作(zuo)