Fitting method for marine propeller and screw shaft

• Main Author: LYU YUQUAN
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2016
• Subjects: EQUIPMENT FOR SHIPPING; HAULING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; LIFTING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING

The invention discloses a fitting method for a marine propeller and a screw shaft and relates to the technical field of shipbuilding. The fitting method for the marine propeller and the screw shaft comprises the following steps that (1) the marine propeller penetrates through the screw shaft in a sleeving mode, an annular hydraulic jack and a tool nut are arranged outside the screw shaft in sequence and are tightened; and (2) a hand pump communicating with the annular hydraulic jack starts to raise hydraulic pressure, after the marine propeller are pressed tightly, the annular hydraulic jack relieves the hydraulic pressure, the tool nut is manually tightened again, the tool nut and the annular hydraulic jack are dismantled, and installation is completed. The annular hydraulic jack comprises an annular cylinder body; an annular piston is installed in the annular cylinder body in a sleeved mode, and a seal ring is arranged between the annular cylinder body and the annular piston; and a notch is formed in the po