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功能用途
升(sheng)降(jiang)(jiang)系(xi)(xi)統(tong)(tong)(tong)是(shi)用(yong)(yong)于海洋平(ping)(ping)臺(tai)升(sheng)降(jiang)(jiang)的(de)傳動裝置。作業時將樁(zhuang)腿下伸到船(chuan)底(di),使其站立在(zai)海床上(shang),然后(hou)平(ping)(ping)臺(tai)在(zai)升(sheng)降(jiang)(jiang)裝置的(de)作用(yong)(yong)下被托(tuo)起并離開(kai)水面,平(ping)(ping)臺(tai)穩定后(hou)開(kai)始作業。在(zai)自升(sheng)式鉆井平(ping)(ping)臺(tai)托(tuo)航(hang)時,樁(zhuang)腿在(zai)系(xi)(xi)統(tong)(tong)(tong)的(de)作用(yong)(yong)下被收回,使平(ping)(ping)臺(tai)處于漂浮狀態。該升(sheng)降(jiang)(jiang)系(xi)(xi)統(tong)(tong)(tong)通(tong)過齒輪齒條結構實現(xian)樁(zhuang)腿的(de)升(sheng)降(jiang)(jiang)。鎖(suo)(suo)緊(jin)系(xi)(xi)統(tong)(tong)(tong)利用(yong)(yong)楔形塊的(de)特點(dian),同時從垂直(zhi)和(he)水平(ping)(ping)方向約(yue)束鎖(suo)(suo)緊(jin)齒條,進行(xing)鎖(suo)(suo)緊(jin)及解(jie)鎖(suo)(suo)操作